WO2013187734A1 - Apparatus for manufacturing contact tip for welding torch by forging - Google Patents

Apparatus for manufacturing contact tip for welding torch by forging Download PDF

Info

Publication number
WO2013187734A1
WO2013187734A1 PCT/KR2013/005286 KR2013005286W WO2013187734A1 WO 2013187734 A1 WO2013187734 A1 WO 2013187734A1 KR 2013005286 W KR2013005286 W KR 2013005286W WO 2013187734 A1 WO2013187734 A1 WO 2013187734A1
Authority
WO
WIPO (PCT)
Prior art keywords
molding
hole
mold
mold assembly
welding torch
Prior art date
Application number
PCT/KR2013/005286
Other languages
French (fr)
Korean (ko)
Inventor
구본수
Original Assignee
Ku Bon Su
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020120064616A external-priority patent/KR20130141305A/en
Priority claimed from KR1020120064615A external-priority patent/KR20130141304A/en
Priority claimed from KR1020120064617A external-priority patent/KR101387154B1/en
Application filed by Ku Bon Su filed Critical Ku Bon Su
Publication of WO2013187734A1 publication Critical patent/WO2013187734A1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12Forming profiles on internal or external surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • B21C23/18Making uncoated products by impact extrusion
    • B21C23/186Making uncoated products by impact extrusion by backward extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00Making hollow articles not covered by a single preceding sub-group
    • B21K21/08Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00Making hollow articles not covered by a single preceding sub-group
    • B21K21/12Shaping end portions of hollow articles
    • B21K21/14Shaping end portions of hollow articles closed or substantially-closed ends, e.g. cartridge bottoms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00Making hollow articles not covered by a single preceding sub-group
    • B21K21/16Remodelling hollow bodies with respect to the shape of the cross-section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/12Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B23K9/122Devices for guiding electrodes, e.g. guide tubes
    • B23K9/123Serving also as contacting devices supplying welding current to an electrode

Definitions

  • the present invention relates to an apparatus for manufacturing a contact torch for a welding torch using a forging method, and more particularly, to prevent a strong load from acting on a specific part during the production of a contact torch for a welding torch by cold forging.
  • the present invention relates to a welding torch contact tip manufacturing apparatus that can prevent breakage and improve productivity.
  • Figure 1a is an exploded perspective view showing the configuration of a conventional welding torch
  • Figure 1b is a cross-sectional view showing a conventional contact tip for a conventional welding torch.
  • FIG. 1A an arc welding machine that generates an arc between a base material and a metal electrode and uses the welding heat, or a welding torch 100 in a welding machine such as a carbon dioxide (CO 2 ) welding machine is shown in FIG. 1A.
  • a rubber hose (not shown) for supplying gas to the rear of the torch body 120 is connected through a hose connector, and a power supply line is connected to an insulator (not shown) to supply current to the torch body 120.
  • the gas diffuser 140 While being insulated by the air), the gas diffuser 140 through which the gas supplied from the rubber hose is discharged from the front of the torch body 120 and the gas diffuser 140 are in contact with the welding wire (not shown).
  • the contact tip 130 which is supplied to the inside thereof, is installed, and the nozzle 110 is installed to cover the outside of the gas diffuser 140 and the contact tip 130.
  • the contact tip 130 is a consumable member for supplying a metal wire used as an electrode therein and mechanically, electrically and thermally connected to the torch body 120 to perform the welding operation as described above.
  • a feed path 215 through which the wire is transferred is formed at the center of the body 210 formed to have a substantially round bar shape, and on one side thereof, to be mechanically and electrically connected to the torch body 120.
  • the head 230 processed to have a predetermined inclination angle is formed on the body corresponding to the other side of the screw 220.
  • Korean Patent No. 10-1109255 which is the applicant's patent, discloses a "manufacturing method of the contact tip for welding torch by the forging method", and in the drawing method
  • the inner diameter of the feeding path is bad, cracks or protrusions are formed on the inner circumferential surface of the feeding path, so that wire feeding failure and foreign matters due to drawing oil are stuck on the inner circumferential surface of the feeding path, preventing wire feeding failure.
  • the diameter of the material 650 rapidly decreases as the end portion of the material 650 moves from the large diameter portion 627 to the small diameter portion 623 via the inclined portion 625 so as to form the end portion of the material 650.
  • Large plastic deformation is achieved at this, and such plastic deformation does not occur uniformly throughout the end circumference, and the load due to plastic deformation hits the first forging pin 630 strongly.
  • the direction in which the load is applied acts not in the longitudinal direction of the first forging pin 630, but in the vertical direction or the inclined direction of the length, and in particular, the end portion of the first forging pin 630 is not supported around. Since the first forging pin 630 is damaged or deformed because it exists in space, it frequently occurred.
  • the head portion is formed by pressing the screw side in the state in which the head side is inserted into the mold, so that the pressure is strongly pressed on the screw side to transfer the load toward the head portion Since a strong load is required for the plastic deformation at the head, unnecessary deformation occurs at the threaded portion, and a problem in that the plastic deformation at the head does not occur completely.
  • An object of the present invention is to provide a manufacturing apparatus which prevents damage and breakage of a molded part or a base metal during molding of a contact torch for a welding torch by cold forging, and is particularly easy to form a connection part in which a connection hole is formed.
  • the object includes a body portion, a connecting portion connected to the gas diffuser of the welding torch and the outer diameter smaller than the body portion, and a head portion formed on the opposite side of the connecting portion, and through the center is provided with a body portion hole, a connection portion hole and a head portion hole
  • An apparatus for manufacturing a contact tip for a welding torch comprising: a connection part mold assembly configured to press a base material to form a first molded part in which a first connection hole is formed; A body hole molding mold assembly configured to press the center of the first body to form a second body in which a second body hole is formed; A communication mold assembly configured to press the center of the second molding to form a third molding in which the first connecting portion hole and the second body portion hole communicate; And a head molding mold assembly configured to place a finishing pin equal to or larger than a welding wire diameter inside the third molding and pressurize the third molding to form a fourth molding in which a fourth head hole is formed. It is achieved by an apparatus for manufacturing a contact tip for a welding torch using
  • the first connection part hole may have the same length or shorter length than the connection part hole, and the second body part hole may have a longer length than the body part hole.
  • the connection part mold assembly includes a first-first molding hole into which the base material is inserted and a first-first connection molding hole corresponding to the outer diameter of the connection part at the inner end of the first-first molding hole.
  • a first connection part mold assembly for molding the first-first molding by inserting the base material into the first base material; And a 1-2 connection hole in which the 1-1 molding is inserted, a 1-2 connection part molding hole corresponding to the outer diameter of the connection part at an inner end of the 1-2 molding hole, and a center of the 1-2 connection part molding hole.
  • a second connection mold assembly for inserting and pressing the first-first molded article into the first-second mold in which the first-second molded protrusion having the same or larger diameter as the welding wire is formed in the second-second mold; Can be distinguished.
  • the first-first forming protrusion is formed at the center of the first-first connection part forming hole, and the pre-groove is formed by the first-first forming protrusion. Can be.
  • the body hole molding mold assembly may include: a first body hole molding mold assembly configured to mold a 2-1 molding in which a part of the second body hole is formed; And a second body hole molding mold assembly configured to mold the remainder of the second body hole to complete the second molding.
  • An apparatus for manufacturing a contact tip according to the present invention includes a polygonal mold assembly comprising a fifth mold in which all or a part of a cross section is formed in a polygon, and a fifth molding housing for pressing the fourth molding inserted into the fifth mold; It may be made to include more.
  • the first connection part mold assembly may include a first-first punch for forming a pre-body portion forming a pre-body portion hole and pressing the front side of the base material.
  • the second connection part mold assembly may include a 1-2 punch which is formed in the preliminary body part protrusion 1-2 inserted into the preliminary body hole and pressurizes the front side of the 1-1 molding.
  • the body hole molding die assembly may include a protrusion inserted into the first connection hole and having a length longer than that of the 1-2 molding protrusion.
  • the body hole molding mold assembly may include: a first body hole molding mold assembly configured to mold a 2-1 molding in which a part of the second body hole is formed; And a second body hole molding mold assembly configured to mold the remainder of the second body hole to complete the second molding, wherein the first body hole molding mold assembly has a length longer than that of the first and second molding protrusions.
  • the 2-1 protrusion may be formed.
  • the second body hole molding mold assembly may have a second-2 protrusion having a length longer than that of the second-1 protrusion.
  • the first-second mold when the first-first molding is pressed after insertion, the first-second mold may slide backward in the pressing direction.
  • the second molding may have a second body portion having the second body portion hole opened to one side at a center thereof, and a second connecting portion hole formed to be opposite to the second body portion hole at the center thereof, and having a diameter greater than that of the second body portion. It includes a small second connecting portion, the communication mold assembly, the third mold is formed with a third insertion hole is inserted into the second molded body side; A third molding housing configured to press-support the second connecting portion of the second molding; And a third punch in the second molding to communicate with each other by pressing between the second body portion hole and the second connection portion hole.
  • the third punch may be disposed to be positioned at the center of the third insertion hole and inserted into the second body hole to pressurize the second molding.
  • the communication mold assembly may include: a third sleeve surrounding a portion of the third punch and facing the front end of the second body portion and sliding back and forth in an insertion direction of the second molding; And a third drawing rod that pushes the third sleeve toward the third molding housing and allows the second molding to be drawn out.
  • the third mold may be slidable to the opposite side of the third molding housing, and the communication mold assembly may further include a third elastic body that presses the third mold toward the third molding housing.
  • the communication mold assembly may include: a third front case in which the third mold is slid in an inner side, and a latching jaw in which the third mold is caught at a front end thereof; And a third rear case coupled to the rear end of the third front case, the rear end of the third punch being in close contact with the front, and the third lead-out rod penetrated therethrough.
  • the front outer circumferential surface of the third sleeve may be in close contact with the inner circumferential surface of the third insertion hole, and the inner circumferential surface of the third sleeve may be in close contact with the outer circumferential surface of the third punch.
  • the front side of the third punch may have an outer diameter equal to the inner diameter of the second connecting portion hole in a section longer than the length of the second connecting portion, and the center of the third punch may have the same outer diameter as the inner diameter of the second body portion hole. have.
  • the second connecting portion may be inserted into the third molding housing, and an outlet may be formed in the third molding housing.
  • the third molded part may include a third body part having a third body hole opened to one side at a center thereof, and a third connection hole communicating with the third body hole at a center thereof, and having a diameter smaller than that of the third body part.
  • the head molding mold assembly includes three connection parts, and includes: a fourth mold having a fourth insertion hole into which the third molding is inserted from the third connection part; A fourth outer sleeve having a front end inserted into the fourth insertion hole to support the third molding; And a finishing pin having a diameter equal to or larger than a welding wire diameter and inserted into the third body hole, at the center thereof, and pressing the third body portion of the third molding to form a fourth head hole. It may comprise a housing.
  • the head molding mold assembly may further include a fourth protrusion positioned on the fourth insertion hole center line and having a front end inserted into the third connection hole.
  • the head mold assembly includes: a fourth inner sleeve surrounding a portion of the fourth protrusion to support the front end of the third connecting portion and sliding back and forth in an insertion direction of the third molded product; And a fourth drawing rod that pushes the fourth inner sleeve toward the third molding housing and draws the third molding.
  • the fourth mold may be slidably opposite the fourth molding housing, and the head mold assembly may further include a fourth elastic body for pressing the fourth mold toward the fourth molding housing.
  • the head molding mold assembly includes: a fourth front case in which the fourth mold is slid in an inner side, and a latching jaw in which the fourth mold is caught at a front end thereof; And a fourth rear case in close contact with the rear end of the fourth front case, in close contact with the rear end of the fourth protrusion in front, and through the fourth lead-out rod.
  • the head molding mold assembly may be coupled to the fourth front case or the fourth rear case, and may further include a fastener that prevents the movement of the fourth outer sleeve.
  • the fourth rear case may include a sleeve fixing portion surrounding the fourth outer sleeve, and the fixture may be screwed to the front end of the sleeve fixing portion.
  • the front outer peripheral surface of the fourth outer sleeve is in close contact with the inner peripheral surface of the fourth insertion hole, the front inner peripheral surface of the fourth outer sleeve is in close contact with the outer peripheral surface of the fourth inner sleeve, the inner peripheral surface of the fourth inner sleeve is It may be in close contact with the outer peripheral surface of the center of the fourth projection without space.
  • the front side of the fourth protrusion may be made to have an outer diameter equal to the inner diameter of the second connecting portion hole in a section longer than the length of the third connecting portion.
  • the inner side of the fourth molding housing facing the fourth mold may have a shape corresponding to the head.
  • the first and second molding protrusions are not pressed in the lateral direction but only in the longitudinal direction, and the action of the lateral load on the 1-2 molding protrusion is almost not applied. Since it does not occur, breakage of the 1-2 molding protrusion is prevented, and since there is no empty space in the 1-1 molding when the first connection hole is formed, a part of the 1-1 molding is plastically deformed in an unintended direction due to external force. To be prevented.
  • the first-second mold is slid in the second connection-molding step using the second connection-molding mold assembly, an excessive load is prevented from being applied when the first-second molding protrusion contacts the preliminary connection part. Since the load applied to the preliminary connecting portion by the two forming protrusions can be distributed throughout the sliding process, it is possible to prevent breakage of the 1-2 forming protrusions.
  • connection hole is formed through the connection molding die assembly and the trunk hole molding assembly, the connection holes are sequentially formed through several steps, load distribution is made, and damage or damage during molding can be prevented. .
  • 1A is an exploded perspective view illustrating a conventional general welding torch.
  • FIG. 1B is a cross-sectional view of the contact tip of FIG. 1A.
  • FIG. 1B is a cross-sectional view of the contact tip of FIG. 1A.
  • FIGS. 2A to 2D are cross-sectional views illustrating a conventional contact tip manufacturing apparatus and a process of the contact tip manufactured by the manufacturing apparatus.
  • FIG 3 is a side view and a cross-sectional view of the contact tip manufactured by the contact tip manufacturing apparatus for welding torch using the forging method according to an embodiment of the present invention.
  • Figure 4 is a view showing the process sequence according to the use of the contact tip manufacturing apparatus for welding torch using the forging method according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view illustrating a molded product manufactured by the contact tip manufacturing process illustrated in FIG. 4 according to a process sequence.
  • FIG. 6 is a cross-sectional view schematically showing an apparatus for manufacturing a contact torch for a welding torch using a forging method according to an embodiment of the present invention.
  • FIG. 7 is a cross-sectional view illustrating a contact tip manufactured according to an apparatus for manufacturing a contact torch for a welding torch according to another embodiment of the present invention in a process sequence.
  • FIG. 8 is a cross-sectional view schematically showing a manufacturing apparatus used for manufacturing the contact tip according to FIG.
  • FIG. 9 is a cross-sectional view illustrating the manufacturing apparatus according to FIG. 6 in more detail.
  • FIG. 10 is a cross-sectional view showing a manufacturing apparatus according to another embodiment of the present invention.
  • FIG. 11A is a cross-sectional view of the communication mold assembly illustrated in FIG. 10.
  • FIG. 11A is a cross-sectional view of the communication mold assembly illustrated in FIG. 10.
  • FIG. 11B and 11C are sectional views showing an operating state of the communication mold assembly shown in FIG. 11A.
  • FIG. 12A is a cross-sectional view of the head mold assembly shown in FIG. 9.
  • FIG. 12A is a cross-sectional view of the head mold assembly shown in FIG. 9.
  • FIG. 12B and 12C are cross-sectional views showing an operating state of the head mold assembly shown in FIG. 12A.
  • connection mold assembly 11 first connection mold assembly
  • body part hole molding mold assembly 21 first body part hole molding mold assembly
  • connection hole 230 head
  • head hole 300 the base material
  • connection 2-1 333 201 body hole
  • connection part forming hole 423 1-2 molding protrusion
  • FIG. 3 is a side view and a cross-sectional view of the contact tip 200 manufactured by the contact tip manufacturing apparatus for welding torch using the forging method according to an embodiment of the present invention
  • Figure 4 is a forging method according to an embodiment of the present invention
  • FIG. 5 is a view illustrating a process sequence according to the use of a contact torch contact tip manufacturing apparatus using a welding torch
  • FIG. 5 is a cross-sectional view of a molded product manufactured by the contact tip manufacturing process shown in FIG.
  • the contact tip 200 by the welding torch contact tip manufacturing apparatus using the forging method according to the present invention has a smaller outer diameter than the body portion 210, the body portion 210 and is connected to the gas diffuser of the welding torch 220 And a head 230 formed on the opposite side of the connecting portion 220.
  • a thread is formed on the outer circumferential surface of the connecting portion 220 for screwing the gas diffuser, but is omitted in the drawing.
  • the contact tip 200 penetrates the center along the longitudinal direction, and the head hole 231, the body hole 211, and the connection hole 221 communicate with each other in order.
  • the head hole 231 is a passage through which the welding wire is fed, and has a diameter slightly larger than the diameter of the welding wire.
  • the welding wire may have various diameters according to the intended use. For example, if the welding wire diameter is 1.6 mm, the head hole 231 is slightly larger to have a diameter of 1.7 mm so that the supply of the welding wire is reduced. It is desirable to make it natural.
  • the head hole 231 refers to a passage section located inside the head 230
  • the connection hole 221 refers to a passage section located inside the connecting portion 220
  • the body hole 211 refers to a passage section located inside the body portion 210.
  • the diameter of the body hole 211 and the connection hole 221 may be formed slightly larger than the head hole 231, in particular the diameter of the body hole 211 may be formed larger than the connection hole 221, this structure is a contact It may provide convenience of manufacture of tip 200.
  • the head 230 is set to the front side, and the connecting portion 220 is set to the rear and will be described.
  • this direction is the first molding 320, the second molding 340, the third molding 350, the fourth molding 360, the fifth molding, which is a molding before the contact tip 200 is completed. The same applies to 370 and the like.
  • the welding torch contact tip manufacturing apparatus using the forging method according to the present invention is for manufacturing the contact tip 200 by cold forging ( ⁇ ⁇ ⁇ ), connection molding mold assembly 10 (first) Connection Mold Mold Assembly (11) and Second Connection Mold Mold Assembly (12), Body Hole Mold Mold Assembly (20) (First Body Hole Mold Mold Assembly (21) and Second Body Hole Mold Mold Assembly (22)) , A communication mold assembly 30, a head mold assembly 40, and a polygonal mold assembly 50 are formed, and the molding is continuously performed while sequentially passing through each assembly.
  • connection part mold assembly 10 (the first connection part mold assembly 11 and the second connection part mold assembly 12), the body part hole molding mold assembly 20 (the first body part hole molding mold assembly 21) ) And the second body hole molding mold assembly 22), the communication mold assembly 30, the head molding mold assembly 40 and the polygonal molding mold assembly 50, the operation according to the operation of each, the connection molding step (S200) ) (The first connecting portion molding step (S210) and the second connecting portion molding step (S220)), the body hole forming step (S300) (the first body hole forming step (S310) and the second body hole forming step (S320)), Communication step (S400), the head molding step (S500) and may be described as a polygon molding step (S600), but will further include a base material preparation step (S100) and finishing treatment step (S700).
  • the process according to the use of the body hole molding mold assembly 20 may be described as a body hole molding step (S300).
  • the manufacturing apparatus according to the present invention may be formed in the form of a cold forging forming machine, and the execution of the process according to the operation of each assembly is preferably automated. Each step is completed by one reciprocating process.
  • a contact tip manufacturing apparatus will be described in the order of the steps.
  • a cylindrical base material 300 is prepared.
  • the base material 300 may be made of a material having high strength, such as chromium copper, zirconium copper, and beryllium copper, and may be prepared by cutting a steel wire-shaped material manufactured by extrusion molding to a certain length.
  • a device 400 to be repeatedly cut to a predetermined length by the cutter 500 while the steel wire is inserted can be the base material preparation step (S100) to be automated. .
  • the base material 300 is a cylindrical shape, the inside of which is all filled, the diameter is preferably made the same as the diameter of the contact tip 200 is completed. However, since the inside is penetrated by the plastic deformation during the manufacturing process and the length becomes longer, the length is slightly shorter than that of the contact tip 200 that has been manufactured. This base material 300 is shown in Figure 5 (a).
  • connection part forming step S200 is performed. In this step, the first connection part 322 and the first connection part hole 321 are formed while pressing the base material 300. Forming of the first connection hole 321 is shown in Figure 5 (c).
  • the connection part molding step S200 is preferably made of a first connection part molding step S210 and a second connection part molding step S220. As mentioned above, the connection part forming step (S200) is made according to the use of the connection part mold assembly (10).
  • the connection mold assembly 10 is divided into a first connection mold assembly 11 and a second connection mold assembly 12, and the first connection mold mold assembly 11 is a 1-1 mold 410.
  • a first-first punch 510, and the second connection mold assembly 12 includes the first-second mold 420 and the first-second punch 520.
  • the first 'connected part mold assembly 13 including the 1-3 mold 410' and the 1-3 punch 510 ' may be used, which will be described later.
  • the base material 300 is inserted into the first-first mold 410 and then press-formed by the first-first punch 510 to be forged.
  • the first-first mold 410 is the same as the diameter of the base material 300 (which does not mean 'physically completely the same', but includes a slightly larger case within the range to allow insertion;
  • the 1-1st molding hole 411 having the same inner diameter as the outer diameter of the contact tip 200, and the 1-1st connecting hole forming hole (1-1) with the outer diameter of the connection portion 220 at the inner end of the 1-1st molding hole 411 ( 412 is formed.
  • the connection part 220 of the contact tip 200 is usually screwed with the gas diffuser is screwed, 'connecting portion 220 outer diameter' refers to the diameter before the threading process.
  • the part where the first-first molding hole 411 and the first-first connection molding hole 412 are connected is formed to have a gentle inclined surface or curved surface, whereby the base material 300 forms the preliminary connection part 312. It can be shaped naturally by sliding and moving when plastically deformed.
  • a first-first molding protrusion 413 is formed, which is shorter than the first-second molding protrusion 423 to be described later, and is formed by the first-first molding protrusion 413.
  • the preliminary groove 311 is formed. By the formation of the preliminary groove 311, the second molding protrusion 423 naturally sits in the preliminary groove 311 and helps to form the first connection hole 321.
  • a first-first punch 510 is provided to forge the first-first molded product 310 by interacting with the first-first mold 410, and the outer diameter of the first-first punch 510 is set to the first diameter. It is formed to be equal to the inner diameter of the 1-1 molding hole 411. At the end of the first-first punch 510, a preliminary body portion protrusion 511 for forming the preliminary body portion hole 313 is formed.
  • the back of the base material 300 is inserted into the first-first mold 410 and the first-first punch 510 hits the base material 300 and pressurizes the preliminary connection part 312 and the preliminary groove (
  • a first connection part forming step 311 is formed, and the first connection part forming step S210 according to the operation of the first connection part mold assembly 11 is performed, and the first connection part forming step S210 shown in FIG.
  • the 1-1 molding 310 is molded.
  • the first-first molding 310 is drawn out of the first-first mold 410 and inserted into the first-second mold 420, and then the first-second punch Pressed by 520 is forged.
  • the first-second mold 420 may include the first-second molding hole 421 having the same inner diameter as that of the first-first molding 310, that is, the same as the outer diameter of the contact tip 200, and the first-second mold 420.
  • the first connection part forming hole 422 having the same diameter as the outer diameter of the connecting part 220 is formed.
  • a 1-2 forming protrusion 423 is formed, and the first connecting hole 321 is formed by the 1-2 forming protrusion 423. That is, while the 1-2 molding protrusion 423 is pressed in a state of being in close contact with the preliminary groove 311 of the 1-1 molding 310, the preliminary connection portion 312 of the 1-1 molding 310 is The first connection part 322 is pushed toward the second connection part forming hole 422 and the first connection part hole 321 is formed. At this time, the preliminary connection part 312 of the 1-1 molding 310 is the same as the diameter of the 1-2 connection part molding hole 422 and rides the 1-2 connection part molding hole 422 (Fig. 6 (c)).
  • the first molding protrusion 423 Since only the downward movement (based on Fig. 6 (c)), the first molding protrusion 423 is not pressed in the left and right directions, but only in the vertical direction and the 1-2 molding protrusion is pressed. Since the action of the lateral load hardly occurs at 423, breakage of the 1-2 molding protrusion 423 is prevented. In addition, since there is no empty space in the first-first molded part 310 when the first connection hole 321 is molded, a part of the first-first molded part 310 is prevented from being plastically deformed in an unintended direction by an external force. .
  • the diameter of the second molding protrusion 423 is greater than the diameter of the finishing pin 565, which will be described later, so that the inner diameter of the connection hole 221 is formed larger than the inner diameter of the head hole 231. Since the inner diameter of the connection hole 221 does not need to be formed to be the same size as the inner diameter of the head hole 231, the 1-2 forming protrusions 423 for determining the diameter of the connection hole 221 (2-1)
  • the rigidity of the 1-2 molding protrusions 423 can be ensured, and the 1-2 molding protrusions 423 in the manufacturing process. Can be prevented from being broken. This is the same also in the case of the 2-1 protrusion 432 and the 2-2 protrusion 442 which are mentioned later.
  • first-second molding protrusion 423 is not to be formed in a completely cylindrical shape, the upper portion may be formed to be slightly tapered in a range to be formed of the first connection hole 321, It may also be made slightly tapered as a whole. This is the same also in the case of the 2-1 protrusion 432 and the 2-2 protrusion 442 which are mentioned later.
  • a 1-2 punch 520 is provided to forge the first molding 320 by interacting with the 1-2 mold 420, and the outer diameter of the 1-2 punch 520 is defined as 1- 1. It is formed to be equal to the inner diameter of the two forming holes 421.
  • the first-second preliminary body protrusion 521 for forming the first preliminary body hole 323 may be formed at the end of the first-second punch 520.
  • the second connection molding step (S220) is made, the first molding part 320 shown in FIG. 5 (c) is subjected to the second connection molding step (S220) by the operation of the second connection molding mold assembly 12 Molded.
  • the 1-2 mold 420 when the 1-2 punch 520 strikes the 1-1 molding 310 inside the 1-2 mold 420, the 1-2 mold 420 The molding can be made while sliding to the rear (below in Figure 6 (c)). After sliding, the elastic means is interposed so that it can be restored to its original state. As described above, the sliding of the 1-2 mold 420 prevents an excessive load from being applied at the moment when the 1-2 molding protrusion 423 contacts the preliminary connection portion 312, and the 1-2 molding protrusion ( Since the load applied to the preliminary connecting portion 312 may be distributed throughout the sliding process, the breakage of the 1-2 molding protrusion 423 may be prevented.
  • connection part forming step S200 After the connection part forming step S200 is completed, the body part hole forming step S300 is performed, and the second body part hole 343 is pressed while pressing the center of the first molding part 320 (the central part on the cross section of the first molding part 320). Is formed.
  • the trunk hole molding step (S300) is made according to the use of the trunk hole molding mold assembly (20).
  • the body hole molding mold assembly 20 is divided into a first body body hole molding mold assembly 21 and a second body body hole molding mold assembly 22, and the first body body hole molding mold assembly 21 is a 2-1.
  • the mold 430 and the 2-1 punch 530, the second body hole molding mold assembly 22 includes a 2-2 mold 440 and the 2-2 punch (540).
  • FIG. Body hole molding step (S300) The shape in which the molding of the second body portion hole 343 is completed is shown in FIG.
  • Body hole molding step (S300) the first body hole molding step (S310) according to the operation of the first body hole molding mold assembly 21, the second body according to the operation of the second body hole molding mold assembly (22) It is preferable that the body is divided into hole forming step (S320).
  • the first molding part 320 is drawn out from the first-second mold 420 and inserted into the second-first mold 430, and then the second-first punch ( It is forged while being pressed by the 530.
  • the second-first mold 430 has an inner diameter that is the same as the diameter of the first molded part 320, that is, the outer diameter of the contact tip 200, and the first-second connection part forming hole 422 and the first-second at the bottom thereof.
  • 2-1 holes 431 and 2-1 protrusions 432 similar to the forming protrusions 423 are formed.
  • the 2-1 hole 431 is preferably made to be the same as the length of the 1-2 connection portion forming hole 422, the 2-1 projection 432 is slightly longer than the 1-2 molding protrusion 423 It is preferable to make.
  • the 2-1 hole 431 and the 2-1 protrusion 432 to maintain the outer diameter and length of the first connector 322, but the length of the first connector hole 321 is extended, and eventually the body hole ( In addition to the molding of 211, the connection hole 221 is to be sequentially formed through a number of steps, and to distribute the load.
  • the 2-1 punch 530 is provided to forge the 2-1 molding 330 by interaction with the 2-1 mold 430, and the outer diameter of the 2-1 punch 530 is the body. It is formed to be equal to the inner diameter of the subhole 211.
  • the 2-1 punch 530 penetrates the first molded part 320 and enters to the middle.
  • the diameter of the 2-1 punch 530 is formed larger than the diameter of the 1-2 molding protrusion 423 and the finishing pin 565 to be described later, the inner diameter of the 2-1 body portion hole 333 is connected It is formed larger than the inner diameter of the hole 221 and the head hole 231. Since the inner diameter of the trunk hole 211 including the 2-1 trunk hole 333 does not need to be formed to have the same size as the inner diameter of the head hole 231, the second hole determines the diameter of the trunk hole 211.
  • By increasing the diameter of the -1 punch 530 it is possible to ensure the rigidity of the 2-1 punch 530, it is possible to prevent the 2-1 punch 530 from being damaged in the manufacturing process. This is the same also in the case of the second-2 punch 540 to be described later.
  • the sub-hole molding step (S310) is made, the first body portion hole molding step (S310) by the operation of the first body portion hole molding mold assembly 21, the 2-1 molding shown in Figure 5 (d) ( 330 is molded.
  • the 2-1 molding 330 is drawn out of the 2-1 mold 430 and inserted into the 2-2 mold 440, and then the 2-2 It is forged while being pressed by the punch 540.
  • the second-two mold 440 has an inner diameter that is the same as the diameter of the second-first molding 330, that is, the outer diameter of the contact tip 200, and the second-second mold forming hole 422 and the first at the bottom thereof.
  • a second-2 hole 441 and a second-2 protrusion 442 similar to the ⁇ 2 molding protrusion 423 are formed.
  • the second-2 hole 441 is made to have the same length as the 1-2 connection part forming hole 422, and the second-2 protrusion 442 includes the first-2 forming protrusion 423 and the second. It is preferably made slightly longer than the -1 protrusion 432.
  • the 2-2 holes 441 and the 2-2 protrusions 442 maintain the outer diameter and the length of the 2-1 connecting portion 332, but the length of the 2-1 connecting portion hole 331 is extended. In the end, together with the molding of the second body portion hole 343, the connection portion hole 221 is sequentially formed through each step.
  • the second-2 punch 540 is provided, and the outer diameter of the second-2 punch 540 is a body hole ( It is formed to be equal to the inner diameter of 211).
  • the 2-2 punch 540 further penetrates the 2-1 molding 330 and extends the 2-1 body portion hole 333 to enter a position close to the 2-2 protrusion 442 and the second body.
  • the subhole 343 is molded.
  • the second second molding 330 is inserted into the inside of the second-2 mold 440 and the second-2 punch 540 hits the center of the second first molding 330 to press the second type.
  • the body part forming step (S320) is made, the second body hole forming step (S320) by the operation of the second body part hole molding mold 22, the second molding (340) shown in Figure 5 (e) ) Is molded.
  • the body hole forming step (S300) is divided into the first body hole forming step (S310) and the second body hole forming step (S320), the body portion hole 211 through two processes This is to prevent the concentration of the load and to form a natural molding.
  • a communication step S400 is performed, and while pressing the center of the second molding 340 (the central part on the cross section of the second molding 340), the second connection hole 341 is formed.
  • the second body portion hole 343 is formed to communicate with each other.
  • the first connecting part hole 321 and the second body part hole 343 communicate with each other through the communication step S400.
  • the communication step (S400) is made according to the use of the communication mold assembly 30.
  • the communication mold assembly 30 includes a third mold 450 and a third molding housing 550.
  • FIG. 5 (f) The form in which the communication step S400 is completed is shown in FIG. 5 (f).
  • the second molding 340 is inserted into the third mold 450 in an inverted state unlike the previous process, which is a material between the second connection hole 341 and the body hole 211 This is to allow the part to be easily removed.
  • the second molding 340 is drawn out in the second-second mold 440 and inserted into the third mold 450, and then pressurized by the third punch 451 to forge the mold. do.
  • the third mold 450 has an inner diameter that is the same as the diameter of the second molding 340, that is, the outer diameter of the contact tip 200, and the third punch 451 from the lower side to the upper side. ) Is formed to be able to slide.
  • the third mold 450 may be formed in a fixed shape as shown in FIG. 9 (f), and may be slidable as shown in FIG. 10 (f).
  • the third punch 451 is a means for pressing and removing the material between the second connection hole 341 and the second body hole 343 in the second molding 340, so that the front portion is the second connection hole It is equal to the diameter of 341 and the rear portion (downward in Fig. 6 (f)) is formed to be equal to the diameter of the second body portion hole (343).
  • the portion connecting the front and rear of the third punch 451 has a gentle inclination and is tapered.
  • a third molding housing 550 is provided to forge the second molding 340 by interaction with the third mold 450, and the third molding housing 550 has a second connection part 342 inward. It is formed to support the body portion 210 of the second molding 340 while being inserted.
  • a discharge port 552 is formed in the third molding housing 550, and a portion removed through the third punch 451 through the discharge port 552 (the second connection hole 341 and the second body hole ( Part 343) is discharged.
  • a communication step (S400) of the communication 221 is made, and the third molding member 350 shown in FIG. 5 (f) is formed while the communication step (S400) by the operation of the communication mold assembly 30 is formed. .
  • the communication mold assembly 30 includes a third mold 450, a third molding housing 550, a third punch 451, a third elastic body 452, an elastic seating portion 453, and a third The sleeve 454, the third lead-out rod 455, the third front case 456 and the third rear case 457 are included.
  • the third front case 456 and the third rear case 457 form an overall appearance, except for the third molding housing 550, the third front case 456 and the third rear case 457 are It is located inside the space.
  • the third front case 456 and the third rear case 457 are not coupled to each other by themselves, it is used to be fixed to the contact tip manufacturing apparatus for welding torch in the form in which the communication mold assembly 30 is assembled.
  • the third front case 456 is provided with a locking step 456a at the front end portion to prevent the third mold 450 from being separated toward the front of the third front case 456. Except for the locking step 456a, the third front case 456 is formed in a cylindrical shape as a whole.
  • the third rear case 457 is formed in close contact with the rear of the third front case 456.
  • an elastic seat portion 453 Protruding toward the front of the third front case 456 is formed an elastic seat portion 453 consisting of a double cylindrical shape.
  • the elastic seating portion 453 has a rear end of the third elastic body 452 mounted therein, and allows the third elastic body 452 to elastically deform without being spaced apart.
  • the inner peripheral surface of the elastic seating portion 453 is made so that the rear end of the third sleeve 454 is in close contact, and helps the third sleeve 454 to slide in the front-rear direction without being spaced apart.
  • the outer surface of the third mold 450 is in close contact with the inner surface of the third front case 456 to be slidable in the front-rear direction.
  • a third insertion hole 450a is formed in the third mold 450, and the inner diameter of the third insertion hole 450a is the same diameter as the outer diameter of the second body 344 of the second molding 340. Is done.
  • the second molding 340 is positioned toward the third molding housing 550 in the third insertion hole 450a, and the ends of the third punch 451 and the third sleeve 454 are inserted to the opposite sides. do.
  • the third molding housing 550 is formed so that the second head 342 side of the second molding 340 may be inserted, and the side facing the third mold 450, that is, the second molding 340 is formed.
  • the inside of the inserted side is formed in a form corresponding to the contact portion of the contact tip, the outlet 552 is formed therein is removed by the third punch 451 and the second body portion 344 and the second connection portion 342 The material between is discharged.
  • the inside of the third mold 450 is positioned on the center line of the third insertion hole 450a, and the front end is inserted into the second molding 340 from the side of the second body hole 343.
  • a third punch 451 is formed. The rear end of the third punch 451 is supported by the third rear case 457.
  • the diameter of the front end portion of the third punch 451 is made the same as the inner diameter of the second connection hole 341, the diameter of the middle portion is made the same as the inner diameter of the second body hole 343, the second body hole ( In 343, the second connector hole 341 moves toward the second connector hole 341 and is supported so that there is no deformation of the second connector hole 341 and the second body hole 343 of the second molding 340 during forging.
  • the third sleeve 454 is positioned on a space formed by the elastic seating portion 453 and the third punch 451.
  • the rear end of the third sleeve 454 is expanded in diameter to form a flange.
  • the front end of the third sleeve 454 is inserted into the third insertion hole 450a and faces the rear end of the second molding 340.
  • the portion of the third sleeve 454 inserted into the third insertion hole 450a has the same outer diameter as the inner diameter of the third insertion hole 450a, and the inner diameter of the third sleeve 454 is the central portion of the third punch 451. It is made the same as the outer diameter.
  • a third drawing rod 455 is formed behind the third sleeve 454, and the third drawing rod 455 pushes the third sleeve 454 toward the third molding housing 550 to form the third molding 350. (After the plastic deformation of the second molding 340 is made), the third mold 450 is drawn out. To this end, the third lead rod 455 is coupled to the slide through the third rear case 457.
  • the second molding 340 is inserted into the third insertion hole 450a to prepare forging of the second molding 340.
  • the third molding housing 550 approaches the third mold 450 and presses the third mold 450 backward.
  • the third molding housing 550 and the third mold 450 completely surround the second molding 340 and support all external surfaces of the second molding 340.
  • the third mold 450 is pushed backward while pressing the third elastic body 452 and moves to the position of FIG. 11C.
  • the front end of the third punch 451 is inserted into the second connector hole 341 through the central portion of the second molding 340, and thus the removed portion is discharged to the outside through the outlet 552. .
  • the third molding housing 550 moves back.
  • the third drawing rod 455 pushes the third sleeve 454, and the third sleeve 454 pulls out the third molding 350 in which the second molding 340 is deformed.
  • the second molding 340 is seated inside the third insertion hole 450a and is molded while being pressed by the third molding housing 550 in a state in which all surfaces are supported. Molding is made without being spaced apart, and the molding is made while the third mold 450 is slid, thereby eliminating the size limitation of the third molding housing 550 and making stable operation. If the third mold 450 is not sliding, that is, as shown in FIG. 9 (f), the front end of the third molding housing 550 has a diameter enough to be inserted into the third insertion hole 450a. Should be small, and in this case, a problem arises in accordance with the size limitation of the third molding housing 550.
  • the head molding step (S500) is made, the head 230 is molded while pressing the front of the third molding (350).
  • the head shaping step (S500) is made according to the use of the head molding mold assembly (40).
  • the head mold assembly 40 includes a fourth mold 460 and a fourth molding housing 560.
  • the head mold assembly 40 may be formed in a form including a 4-1 mold 460 'and a 4-1 molding housing 560', which will be described later.
  • the form in which the head forming step S500 is completed is shown in FIG. 5 (g).
  • the third molding 350 is drawn out from the third mold 450 and inserted into the fourth mold 460, and then pressurized by the fourth molding housing 560. Molded.
  • the fourth mold 460 has an inner diameter that is the same as that of the third molding 350, that is, the outer diameter of the body portion 210 of the contact tip 200, and has the second through second holes 441 and the second through the bottom thereof.
  • the fourth hole 461 and the fourth protrusion 462 similar to the second protrusion 442 are formed.
  • the fourth hole 461 is preferably formed to be slightly longer than the length of the second-2 hole 441, the fourth protrusion 462 has a lower end diameter and a longer length than the second-2 protrusion 442 Is formed. As a result, the fourth connector hole 361 having a relatively wide inlet is formed and stable support is achieved.
  • a fourth molding housing 560 is provided to forge the third molding 350 by interacting with the fourth mold 460, and the fourth molding housing 560 has a front side of the third molding 350. It is formed to be inserted and the inner shape is formed to correspond to the head 230.
  • the inlet of the fourth molding housing 560 is the same as the outer diameter of the third molding 350, and gradually narrows and has a gentle slope as in the shape of the head 230.
  • the finishing pin 565 having a diameter equal to or larger than the diameter of the welding wire is positioned in the fourth molding housing 560.
  • the fourth molding housing 560 approaches the third molding 350 while the rear side of the third molding 350 is inserted into and fixed inside the fourth mold 460, and the front of the third molding 350 is first. It is inserted into the four-forming housing 560.
  • the finishing pin 565 is located inside the third body hole 353 of the third molding 350, and the fourth head hole 364 is molded while the third molding 350 is plastically deformed. Since the interior of the fourth molding housing 560 has a gentle inclination (as in the shape of the head 230), the plastic molding may be deformed by hitting the inner wall of the fourth molding housing 560 in front of the third molding 350. When the finishing pin 565 is not excessively loaded.
  • the head molding step S500 of forming the head 230 in a manner in which the fourth molding housing 560 presses the front of the third molding 350 is performed, and the head molding mold assembly 40 is formed.
  • the fourth molded part 360 shown in FIG. 5 (g) is molded while undergoing the head shaping step S500 by the operation of FIG.
  • the fourth mold 460 when the fourth molding housing 560 hits the third molding 350, the fourth mold 460 is slidably moving backwards (downward in FIG. 6 (g)). Can be done. After sliding, the elastic means is interposed so that it can be restored to its original state. As such, the sliding of the fourth mold 460 is applied to an excessive load at the moment when the fourth molding housing 560 contacts the front of the third molding 350 (in particular, the load is applied to the finishing pin 565). Being applied) and the load applied to the front of the third molded part 350 can be distributed throughout the sliding process, thereby preventing breakage of the finishing pin 565.
  • the head molding mold assembly 40 includes a fourth mold 460, a fourth molding housing 560, a fourth outer sleeve 463, a fourth protrusion 462, and a fourth inner sleeve 464. ), A fourth drawing rod 465, a fourth front case 466, a fourth rear case 467, a fixture 468, and a fourth elastic body 469.
  • the fourth front case 466 and the fourth rear case 467 form the overall appearance, except for the fourth molding housing 560, the fourth front case 466 and the fourth rear case 467 are It is located inside the space.
  • the fourth front case 466 and the fourth rear case 467 are not coupled to each other by themselves, but are fixed to the apparatus for manufacturing a contact tip for welding torch in a form in which the head mold assembly 40 is assembled. .
  • the fourth front case 466 has a latching jaw 466a formed at the front end thereof to prevent the fourth mold 460 from being separated from the front of the fourth front case 466. Except for the locking step 466a, the fourth front case 466 is formed in a cylindrical shape as a whole.
  • the fourth rear case 467 is formed in close contact with the rear of the fourth front case 466.
  • the fourth front case 466 is provided with a sleeve fixing portion 467a protruding forward and formed in a cylindrical shape.
  • the rear side of the fourth outer sleeve 463 is inserted and fixed inside the sleeve fixing portion 467a, and the fourth elastic body 469 is positioned outside the sleeve fixing portion 467a.
  • the outer surface of the fourth mold 460 is in close contact with the inner surface of the fourth front case 466 to be slidable in the front-rear direction.
  • a fourth insertion hole is formed in the fourth mold 460, and the inner diameter of the fourth insertion hole 460a has the same diameter as the outer diameter of the third body 354 of the third molding 350.
  • the third molding member 350 is positioned from the fourth insertion hole 460a toward the fourth molding housing 560, and the fourth protrusion 462, the fourth inner sleeve 464, and the fourth outer sleeve 463 are opposite to the fourth molding housing 560. ) End is inserted.
  • the fourth molding housing 560 is formed to be inserted into the third body portion 354 of the third molding 350, the side facing the fourth mold 460, that is, the third molding 350
  • the inside of the inserted side has a shape corresponding to the head of the contact tip.
  • the finishing pin 565 is fixed to the center of the fourth molding housing 560.
  • the front end portion of the fourth outer sleeve 463 is inserted into the fourth insertion hole 460a to support the third molding 350.
  • the portion of the fourth outer sleeve 463 inserted into the fourth insertion hole 460a has the same outer diameter as that of the fourth insertion hole 460a, and the inner diameter thereof is the outer diameter of the third connecting portion 352. Is done the same as
  • the rear end of the fourth outer sleeve 463 is inserted between the sleeve fixing parts 467a and fixed to the fourth rear case 467.
  • the front of the fourth outer sleeve 463 is formed to be relatively narrow in diameter, and the rear of the fourth outer sleeve 463 has an enlarged diameter to allow sliding of the fourth inner sleeve 464 to be described later.
  • a fastener 468 is formed to prevent movement of the fourth outer sleeve 463 in order to fix the fourth outer sleeve 463 to the fourth rear case 467. Screwed to the front end of the top 467a. That is, when the fastener 468 is separated from the sleeve fixing part 467a, the fourth outer sleeve 463 may be moved toward the fourth rear case 467, and the fixing part 468 is fixed to the sleeve fixing part 467a. 4) the fourth outer sleeve 463 is fixed to the fourth rear case 467.
  • a fourth protrusion 462 is formed on the center line of the fourth insertion hole 460a and the front end portion is inserted into the third molding 350 from the third connection hole 351. .
  • the rear end of the fourth protrusion 462 is supported by the fourth rear case 467.
  • the fourth protrusion 462 supports the third molded part 350, but does not deform the third connection hole 351 of the third molded part 350 during forging.
  • a fourth inner sleeve 464 is formed inside the fourth outer sleeve 463, and the fourth inner sleeve 464 is positioned on a space formed by the fourth outer sleeve 463 and the fourth protrusion 462. .
  • the rear end of the fourth inner sleeve 464 is expanded in diameter to form a flange.
  • a fourth drawing rod 465 is formed behind the fourth inner sleeve 464, and the fourth drawing rod 465 pushes the fourth inner sleeve 464 toward the fourth molding housing 560 to form a third molded article ( 350 to be drawn out of the fourth mold (460).
  • the fourth lead-out rod 465 is coupled to the slide through the fourth rear case 467.
  • the third molding 350 is inserted into the fourth insertion hole 460a to prepare forging of the third molding 350.
  • the fourth molding housing 560 approaches the fourth mold 460 and presses the fourth mold 460 backward.
  • the fourth molding housing 560 and the fourth mold 460 completely surround the third molding 350 and support all external surfaces of the third molding 350.
  • the fourth mold 460 is pushed backward by the fourth elastic body 469 and moves to the position of FIG. 12C.
  • the finishing pin 565 is inserted into the third body hole 353 and the third body part 354 pressed by the fourth molding housing 560 has a diameter decreasing, and the fourth head hole 364.
  • Plastic deformation is performed in the same form as the fourth molded product 360 formed therein.
  • the fourth molding housing 560 moves back.
  • the fourth drawing rod 465 pushes the fourth inner sleeve 464, and the fourth inner sleeve 464 pulls out the fourth molding 360 from which the third molding 350 is deformed.
  • the fourth outer sleeve 463 is fixed to the fourth rear case 467 by the fastener 468.
  • the head is directly formed by the forming housing 560, unnecessary load transmission is unnecessary toward the connecting portion, and the third molding 350 is seated inside the fourth insertion hole 460a and all the surfaces thereof are disposed. Since the molding is performed while being pressurized by the fourth molding housing 560 in a supported state, the molding is performed without spaced apart from the third molding 350, and the molding is performed while the fourth mold 460 is slid to form the fourth molding housing ( The size limit of 560 can be eliminated and stable operation is achieved.
  • the polygon molding step (S600) is made, while pressing the back of the fourth molded part 360 to shape the body portion 210 has a polygonal shape. As such, it is to be formed in a polygon, so that the contact tip 200 is easily coupled to and separated from the gas diffuser, it may be made in various forms including a hexagon.
  • the polygon molding step (S600) is made according to the use of the polygon molding mold assembly (50).
  • the polygonal mold assembly 50 includes a fifth mold 470 and a fifth molding housing 570. The form in which the polygon forming step S600 is completed is shown in FIG. 5 (h).
  • the fourth molding 360 is drawn out from the fourth mold 460 and inserted into the fifth mold 470, and then pressurized by the fifth molding housing 570 to forge the mold. do.
  • the fifth mold 470 has a polygonal cross section corresponding to the body portion 210 of the contact tip 200 and has a shape corresponding to the head portion 230 at the bottom thereof.
  • the same shape as that of the finishing pin 565 may be inserted into the fourth head hole 364 to prevent deformation of the fourth head hole 364.
  • the fifth molding housing 570 is provided to forge the fourth molding 360 by interaction with the fifth mold 470, and the fifth molding housing 570 is connected to the fourth molding 360. 220 is formed to be inserted.
  • the fifth molding housing 570 approaches the fourth molding 360 while the front of the fourth molding 360 is inserted into the fifth mold 470, and the fourth molding 360 approaches the fifth molding 470.
  • Is completely inserted into the body portion 210 is formed in a polygonal shape.
  • the configuration such as the finishing pin 565 is located inside the head hole 231 of the fourth molding 360, even if the fourth molding 360 plastic deformation, the head 230 or the head hole 231 is Prevents deformation.
  • the polygon molding step S600 is performed in which the body portion 210 of the polygon is formed in such a manner that the fifth molding housing 570 presses the rear of the fourth molding 360, and the polygon molding assembly 50 is formed.
  • the fifth molding 370 shown in FIG. 5 (h) is molded while performing the polygon molding step S600 by the operation of.
  • Finishing step (S700) if the outer appearance is required, such as both ends (head 230 and the end of the connecting portion 220) of the fifth molding 370 through cutting, thread processing of the connecting portion, washing, etc. This is a trimming process, whereby the manufacturing process of the contact tip 200 is finished.
  • FIG. 7 is a cross-sectional view illustrating each molding manufactured according to the apparatus for manufacturing a contact torch for a welding torch using a forging method according to another embodiment of the present invention
  • FIG. 8 is a view illustrating the manufacture of the contact tip according to FIG. It is sectional drawing which shows schematically the manufacturing apparatus used.
  • connection mold assembly 10 for welding torch using the forging method described on the basis of Figures 7 and 8, the connection mold assembly 10, the body hole molding mold assembly 20, the communication mold assembly 30, the head mold assembly 40 and the polygonal molding mold assembly 50, except for the connection mold assembly 10 and the head mold assembly 40, the same as described above. That is, only the connection molding step (S200) and the head molding step (S500) is made slightly different.
  • connection mold assembly 10 is divided into a first 'connecting mold assembly 13 and a second connecting mold assembly 12, wherein the first' connecting mold assembly 13 is excluded, or
  • the 1 'connection part mold assembly 13 may be formed in a form including the 1-3 mold 410' and the 1-3 punch 510 '.
  • the head mold assembly 40 does not include the fourth mold 460 and the fourth molding housing 560 as described above, but the 4-1 mold 460 'and the 4-1 molding. It has a shape including a housing 560 '.
  • connection part molding step (S200) according to the changed connection part mold assembly 10 and the head molding step (S500) according to the changed head molding mold assembly 40 will be briefly described.
  • connection part forming step S200 is performed, and the first connection part 322 and the first connection hole 321 are formed while the base material 300 is pressed.
  • the first molding material 320 may be molded while the base material 300 is directly inserted into the above-described 1-2 mold 420 and pressed by the 1-2 punch 520. That is, after forming the base material 300, the second connection molding step S220 may be directly performed without passing through the first connection molding step S210.
  • the base material 300 may be inserted into the first-third mold 410 ', processed, and then molded through the second connection part forming step S220.
  • the base material 300 is forged molded while being inserted into the 1-3 mold 410 'and pressed by the 1-3 punch.
  • the first-third mold 410 ' is formed in the first-third molding hole 411' and is generally similar to the first-first mold 410, but the first-first connection molding hole 412 There is no configuration.
  • the inner bottom edge of the 1-3 mold 410 ' forms an inclined or gentle curved surface in the form of decreasing diameter, and accordingly, the lower end of the base material 300 is also processed into a shape in which the diameter decreases.
  • 312 ' which is formed by the first connection part 322 being formed during the second connection part forming step S220, by which the preliminary protrusion 312' naturally slides to the first connection part forming hole 422. This is to form the first connection portion 322.
  • a 1-3 molding protrusion 413 'similar to the 1-1 molding protrusion 413 is formed on the bottom of the 1-3 mold 410', and thus the bottom of the 1-3 molding 310 'is formed.
  • the second spare groove 311 ′ is also formed.
  • the first preliminary connecting portion forming step (S200) is formed in which the second preliminary groove 311 'is formed, and the first third forming article shown in FIG. 310 ') is molded.
  • the second connection molding step S220 is performed in the same manner as described above.
  • the third molding 350 is drawn out from the third mold 450 and inserted into the 4-1 mold 460 ′, and then the 4-1 molding housing 560 ′. It can be forged while being pressed by).
  • the 4-1 mold 460 ' has a similar shape to the above-mentioned fourth molding housing 560, and the 4-1 molding housing 560' has a similar shape to the above-mentioned fourth mold 460. Is done.
  • the finishing pin 565 described above is located inside the 4-1 mold 460 '. As shown in FIG. 8 (g), the 4-1 hole in the same direction as that of the fourth hole 461 and the fourth protrusion 462 at the front end of the 4-1 molding housing 560 'and having the same shape. 561 and the 4-1 th protrusion 562 are formed.
  • the 4-1 molding housing 560 ' approaches the third molding 350 while the front of the third molding 350 is inserted and fixed inside the 4-1 mold 460'.
  • the front of the molding 350 is completely inserted into the 4-1 mold 460 '.
  • the finishing pin 565 is located inside the body portion hole 211 of the third molded part 350, so that the head hole 231 is molded while the third molded part 350 is plastically deformed.
  • an apparatus for manufacturing a contact tip for a welding torch using a forging method prevents damage and breakage of each mold assembly or base metal during molding of the contact tip, and easily forms a connection part in which a connection hole is formed. It is an invention that has industrial applicability because the possibility of marketing or sales of the applied device is not only sufficient for the use of related technology but also practically obvious as it goes beyond the limit of.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Forging (AREA)

Abstract

Disclosed is an apparatus for manufacturing a contact tip for a welding torch by forging. The apparatus for manufacturing a contact tip for a welding torch by forging according to the present invention comprises: a connection unit molding assembly for pressing a base so as to form a first form having a first connection unit hole; a body hole molding assembly for pressing the center of the first form so as to form a second form having a second body hole; a communicating molding assembly for pressing the center of the second form so as to form a third form in which the first connection unit hole and the second body hole are placed in communication; and a head unit molding assembly for placing a finishing pin, the diameter of which is larger than the diameter of a welding wire, in the third form, and pressing the third form so as to form a fourth form having a fourth head unit hole. According to the present invention, the base having a circular cross-section can be used, and rapid variations in the diameter and shape of the base can be prevented during the formation of the connection unit and the connection unit hole. Therefore, loads being applied to each formed protrusion can be significantly relieved to thus reduce the risk of damage to the formed protrusions and improve productivity.

Description

단조공법을 이용한 용접토치용 컨택트팁 제조장치Contact tip manufacturing device for welding torch using forging method
본 발명은 단조공법을 이용한 용접토치용 컨택트팁 제조장치에 관한 것으로, 보다 상세하게는, 냉간단조에 의한 용접토치용 컨택트팁의 제조시 특정 부분에 강한 하중이 작용하는 것을 방지하여 모재 내지는 성형부품의 파손을 방지하고 생산성을 향상시킬 수 있는 용접토치용 컨택트팁 제조장치에 관한 것이다.The present invention relates to an apparatus for manufacturing a contact torch for a welding torch using a forging method, and more particularly, to prevent a strong load from acting on a specific part during the production of a contact torch for a welding torch by cold forging. The present invention relates to a welding torch contact tip manufacturing apparatus that can prevent breakage and improve productivity.
도 1a는 종래의 일반적인 용접토치의 구성을 나타내는 분해사시도이고, 도 1b는 종래의 일반적인 용접토치용 컨택트 팁을 나타내는 단면도이다.Figure 1a is an exploded perspective view showing the configuration of a conventional welding torch, Figure 1b is a cross-sectional view showing a conventional contact tip for a conventional welding torch.
이들 도면에 도시된 것처럼, 일반적으로 모재와 금속전극 사이에 아크를 발생시켜서 그 용접 열을 이용하는 아크용접기나, 탄산가스(CO2) 용접기와 같은 용접기에 있어서 용접토치는(100)는, 도 1a에 도시된 바와 같이 토치바디(120)의 후부에 가스를 공급하기 위한 고무호스(미도시)가 호스 연결관을 매개로 접속되고, 토치바디(120)에 전류가 공급되도록 전원공급선이 인슐레이터(미도시)에 의해 절연되게 설치되는 한편, 상기 토치바디(120)의 앞쪽으로는 상기 고무호스로부터 공급되는 가스가 배출되는 가스디퓨져(140)와, 이 가스디퓨져(140)와 접하여 용접용 와이어(미도시)가 그 내부로 송급되는 컨택트 팁(130)이 설치되며, 가스디퓨져(140) 및 컨택트 팁(130)측의 외부에 덧씌워지는 형태로 설치되는 노즐(110)이 구비된다.As shown in these figures, in general, an arc welding machine that generates an arc between a base material and a metal electrode and uses the welding heat, or a welding torch 100 in a welding machine such as a carbon dioxide (CO 2 ) welding machine is shown in FIG. 1A. As shown in FIG. 1, a rubber hose (not shown) for supplying gas to the rear of the torch body 120 is connected through a hose connector, and a power supply line is connected to an insulator (not shown) to supply current to the torch body 120. While being insulated by the air), the gas diffuser 140 through which the gas supplied from the rubber hose is discharged from the front of the torch body 120 and the gas diffuser 140 are in contact with the welding wire (not shown). The contact tip 130, which is supplied to the inside thereof, is installed, and the nozzle 110 is installed to cover the outside of the gas diffuser 140 and the contact tip 130.
그리고 상기 컨택트 팁(130)은 전극으로 사용되는 금속 와이어가 그 내부로 송급되고 상기 토치바디(120)와 기계적, 전기적 및 열적으로 접속되어 상기와 같은 용접작업의 수행이 가능하도록 하는 소모성 부재로서, 도 1b에 도시된 바와 같이 대략 환봉 형상을 갖도록 형성된 몸체(210)의 중심부에 상기 와이어가 이송되는 송급로(215)가 형성되고, 그 일측에는 토치바디(120)측에 기계적, 전기적으로 접속되도록 나사부(220)가 형성되는 한편 상기 나사부(220)의 타측에 해당되는 몸체상에는 일정한 경사각을 갖도록 가공된 머리부(230)가 형성된다.In addition, the contact tip 130 is a consumable member for supplying a metal wire used as an electrode therein and mechanically, electrically and thermally connected to the torch body 120 to perform the welding operation as described above. As shown in FIG. 1B, a feed path 215 through which the wire is transferred is formed at the center of the body 210 formed to have a substantially round bar shape, and on one side thereof, to be mechanically and electrically connected to the torch body 120. While the screw 220 is formed, the head 230 processed to have a predetermined inclination angle is formed on the body corresponding to the other side of the screw 220.
상기와 같은 컨택트 팁(130)의 제조를 위한 것으로서, 본 출원인의 등록특허인 한국등록특허 제10-1109255호는 "단조공법에 의한 용접토치용 컨택트 팁의 제조방법"을 개시하며, 인발공법에서 발생되는 송급로의 내경 치수 불량, 송급로 내주면상에 균열이나 돌기가 형성되어 용접시 와이어의 송급불량, 인발유로 인한 이물질이 송급로의 내주면상에 고착되어 와이어의 송급불량을 유발시키는 것을 방지하고, 용접기의 자동화에 따른 장시간 연속용접 작업에 부응하는 높은 강도와 내구성을 가지며, 특히 지르코늄동이나 크롬-지르코늄동, 베릴륨동과 같이 강도가 높은 재질로 컨택트 팁을 제조할 때 가공성이 양호하고 저렴한 가격으로 높은 강도와 내구성을 갖는 컨택트 팁을 제조할 수 있도록 하고 있다.As for the manufacture of the contact tip 130 as described above, Korean Patent No. 10-1109255, which is the applicant's patent, discloses a "manufacturing method of the contact tip for welding torch by the forging method", and in the drawing method The inner diameter of the feeding path is bad, cracks or protrusions are formed on the inner circumferential surface of the feeding path, so that wire feeding failure and foreign matters due to drawing oil are stuck on the inner circumferential surface of the feeding path, preventing wire feeding failure. , High strength and durability for long time continuous welding operation by welding machine automation, good workability and low price especially when manufacturing contact tip with high strength materials such as zirconium copper, chromium-zirconium copper, beryllium copper It is possible to produce a contact tip having a high strength and durability.
도 2a 내지 도 2d에는, 한국등록특허 제10-1109255호에서 개시되는 컨택트팁 제조방법을 설명하기 위하여, 여기에 사용되는 제조장치 및 이 제조장치에 의해 제조되는 컨택트팁이 도시되어 있다.2A to 2D, in order to explain the method for manufacturing a contact tip disclosed in Korean Patent No. 10-1109255, a manufacturing apparatus used here and a contact tip manufactured by the manufacturing apparatus are illustrated.
그러나 본 출원인은, 한국등록특허 제10-1109255호에 따른 제조방법을 통하여 컨택트팁을 제조한 결과 다음과 같은 문제점을 발견하였으며, 본 발명을 통하여 이를 해소하고자 한다.However, the present applicant has found the following problems as a result of manufacturing the contact tip through the manufacturing method according to Korean Patent No. 10-1109255, and to solve this problem through the present invention.
중간소재(670)를 성형할 때, 소재(650)의 단부가 경사부(625)를 거쳐 대경부(627)에서 소경부(623)로 이동함에 있어서 급격하게 직경이 감소하여 소재(650) 단부에서 큰 소성변형이 이루어지게 되고 이러한 소성변형이 단부 둘레 전체에서 균일하게 발생되지 못하며 또한 소성변형에 따른 하중이 제1단조핀(630)을 강하게 때리게 된다. 이때, 하중이 가해지는 방향은 제1단조핀(630)의 길이방향이 아닌, 길이의 수직방향 내지는 경사방향으로 작용하게 되고, 특히 제1단조핀(630)의 단부가 주변에 지지되는 것이 아니고 공간상에 존재하는 것이므로 제1단조핀(630)이 파손되거나 변형되는 상황이 빈번히 발생하였다.When forming the intermediate material 670, the diameter of the material 650 rapidly decreases as the end portion of the material 650 moves from the large diameter portion 627 to the small diameter portion 623 via the inclined portion 625 so as to form the end portion of the material 650. Large plastic deformation is achieved at this, and such plastic deformation does not occur uniformly throughout the end circumference, and the load due to plastic deformation hits the first forging pin 630 strongly. At this time, the direction in which the load is applied acts not in the longitudinal direction of the first forging pin 630, but in the vertical direction or the inclined direction of the length, and in particular, the end portion of the first forging pin 630 is not supported around. Since the first forging pin 630 is damaged or deformed because it exists in space, it frequently occurred.
제1단조핀(630)이 파손되는 경우 전체 제조공정은 중단되어야 하므로 생산성이 저하되는 문제점이 따르게 된다.When the first forging pin 630 is damaged, the entire manufacturing process must be stopped, which leads to a problem that productivity is lowered.
또한, 중간소재(670) 성형시 타격부(660)에 의하여 소재(650)가 가압 될 때, 소재(650)의 중앙부분 안쪽은 지지되는 부분이 없어(제1단조핀(630) 등에 의하여 지지되지 않음) 안쪽 방향으로 밀려드는 소성변형이 발생되게 되고(양 단부에서의 강한 하중이 중앙부분으로 전달됨), 이러한 소성변형은 다음 공정으로의 진행을 방해하거나 성형불량을 유발하므로, 역시 생산성이 저하되는 문제점이 발생되었다.In addition, when the material 650 is pressed by the striking part 660 when forming the intermediate material 670, the inside of the center portion of the material 650 has no supported part (supported by the first forging pin 630 or the like). Plastic deformation, which pushes inwardly (strong loads at both ends are transferred to the central part), and this plastic deformation hinders progress to the next process or causes mold failure, which also lowers productivity. The problem arises.
또한, 도 2c와 같은 종래의 장치에 의할 경우, 머리부 쪽이 금형 내부에 삽입된 상태에서 나사부 쪽을 가압하여 성형이 이루어지는 형태이어서, 머리부 쪽으로 하중의 전달을 위하여는 나사부 쪽을 강하게 가압(머리부쪽 소성변형을 위하여 강한 하중 필요)하여야 하므로 나사부 부분에서 불필요한 변형이 발생되고, 그럼에도 머리부 쪽은 완전한 소성변형이 이루어지는 않는 문제점이 발생되었다.In addition, according to the conventional apparatus as shown in Figure 2c, the head portion is formed by pressing the screw side in the state in which the head side is inserted into the mold, so that the pressure is strongly pressed on the screw side to transfer the load toward the head portion Since a strong load is required for the plastic deformation at the head, unnecessary deformation occurs at the threaded portion, and a problem in that the plastic deformation at the head does not occur completely.
본 발명의 목적은, 냉간단조에 의한 용접토치용 컨택트팁의 성형시 성형부품 내지는 모재의 손상 및 파손을 방지하고, 특히 연결부홀이 형성된 연결부 부분의 성형이 용이한 제조장치를 제공하는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a manufacturing apparatus which prevents damage and breakage of a molded part or a base metal during molding of a contact torch for a welding torch by cold forging, and is particularly easy to form a connection part in which a connection hole is formed.
상기 목적은, 몸통부, 상기 몸통부보다 외경이 작고 용접토치의 가스디퓨저에 연결되는 연결부 및 상기 연결부의 반대쪽에 형성되는 머리부를 포함하고, 중앙이 관통되어 몸통부홀, 연결부홀 및 머리부홀이 구비되는 용접토치용 컨택트팁 제조장치에 있어서, 모재(母材)를 가압하여, 제1연결부홀이 형성되는 제1성형물을 성형하는 연결부성형금형조립체; 상기 제1성형물 중앙을 가압하여, 제2몸통부홀이 형성되는 제2성형물을 성형하는 몸통부홀성형금형조립체; 상기 제2성형물 중앙을 가압하여 상기 제1연결부홀과 제2몸통부홀이 연통되는 제3성형물을 성형하는 연통금형조립체; 및 용접용 와이어 직경과 같거나 큰 마감핀을 상기 제3성형물 내부에 위치시키고 상기 제3성형물을 가압하면서 제4머리부홀이 형성되는 제4성형물을 성형하는 머리부성형금형조립체;를 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치에 의해 달성된다.The object includes a body portion, a connecting portion connected to the gas diffuser of the welding torch and the outer diameter smaller than the body portion, and a head portion formed on the opposite side of the connecting portion, and through the center is provided with a body portion hole, a connection portion hole and a head portion hole An apparatus for manufacturing a contact tip for a welding torch, the apparatus comprising: a connection part mold assembly configured to press a base material to form a first molded part in which a first connection hole is formed; A body hole molding mold assembly configured to press the center of the first body to form a second body in which a second body hole is formed; A communication mold assembly configured to press the center of the second molding to form a third molding in which the first connecting portion hole and the second body portion hole communicate; And a head molding mold assembly configured to place a finishing pin equal to or larger than a welding wire diameter inside the third molding and pressurize the third molding to form a fourth molding in which a fourth head hole is formed. It is achieved by an apparatus for manufacturing a contact tip for a welding torch using a forging method.
상기 제1연결부홀은 상기 연결부홀과 길이가 같거나 짧고, 상기 제2몸통부홀은 상기 몸통부홀보다 길이가 길게 이루어질 수 있다.The first connection part hole may have the same length or shorter length than the connection part hole, and the second body part hole may have a longer length than the body part hole.
상기 연결부성형금형조립체는, 상기 모재가 삽입되는 제1-1성형홀 및 상기 제1-1성형홀 내측 단부에 상기 연결부 외경에 대응되는 제1-1연결부성형홀이 형성되는 제1-1금형에 상기 모재를 삽입 후 가압하여 제1-1성형물을 성형하는 제1연결부성형금형조립체; 및 상기 제1-1성형물이 삽입되는 제1-2성형홀, 상기 제1-2성형홀 내측 단부에 상기 연결부 외경에 대응되는 제1-2연결부성형홀 및 상기 제1-2연결부성형홀 중앙에서 용접용 와이어 직경과 같거나 큰 제1-2성형돌기가 형성되는 제1-2금형에 상기 제1-1성형물을 삽입 후 가압하여 상기 제1성형물을 완성하는 제2연결부성형금형조립체;로 구분될 수 있다.The connection part mold assembly includes a first-first molding hole into which the base material is inserted and a first-first connection molding hole corresponding to the outer diameter of the connection part at the inner end of the first-first molding hole. A first connection part mold assembly for molding the first-first molding by inserting the base material into the first base material; And a 1-2 connection hole in which the 1-1 molding is inserted, a 1-2 connection part molding hole corresponding to the outer diameter of the connection part at an inner end of the 1-2 molding hole, and a center of the 1-2 connection part molding hole. A second connection mold assembly for inserting and pressing the first-first molded article into the first-second mold in which the first-second molded protrusion having the same or larger diameter as the welding wire is formed in the second-second mold; Can be distinguished.
상기 제1-1금형에서 상기 제1-1연결부성형홀 중앙에는 상기 제1-2성형돌기 보다 짧은 제1-1성형돌기가 형성되고, 상기 제1-1성형돌기에 의해 예비홈이 성형될 수 있다.In the first-first mold, the first-first forming protrusion is formed at the center of the first-first connection part forming hole, and the pre-groove is formed by the first-first forming protrusion. Can be.
상기 몸통부홀성형금형조립체는, 상기 제2몸통부홀의 일부가 형성되는 제2-1성형물을 성형하는 제1몸통부홀성형금형조립체; 및 상기 제2몸통부홀의 나머지를 성형하여 상기 제2성형물을 완성하는 제2몸통부홀성형금형조립체;로 구분될 수 있다.The body hole molding mold assembly may include: a first body hole molding mold assembly configured to mold a 2-1 molding in which a part of the second body hole is formed; And a second body hole molding mold assembly configured to mold the remainder of the second body hole to complete the second molding.
본 발명에 따른 컨택트팁 제조장치는, 단면의 전체 또는 일부가 다각형으로 형성되는 제5금형과, 상기 제5금형에 삽입되는 상기 제4성형물을 가압하는 제5성형하우징으로 이루어지는 다각형성형금형조립체;를 더 포함하여 이루어질 수 있다.An apparatus for manufacturing a contact tip according to the present invention includes a polygonal mold assembly comprising a fifth mold in which all or a part of a cross section is formed in a polygon, and a fifth molding housing for pressing the fourth molding inserted into the fifth mold; It may be made to include more.
상기 제1연결부성형금형조립체는, 예비몸통부홀을 형성하는 예비몸통부돌기가 형성되고 상기 모재의 앞쪽을 가압하는 제1-1펀치를 포함하여 이루어질 수 있다.The first connection part mold assembly may include a first-first punch for forming a pre-body portion forming a pre-body portion hole and pressing the front side of the base material.
상기 제2연결부성형금형조립체는, 상기 예비몸통부홀에 삽입되는 제1-2예비몸통부돌기가 형성되고 상기 제1-1성형물의 앞쪽을 가압하는 제1-2펀치를 포함하여 이루어질 수 있다.The second connection part mold assembly may include a 1-2 punch which is formed in the preliminary body part protrusion 1-2 inserted into the preliminary body hole and pressurizes the front side of the 1-1 molding.
상기 몸통부홀성형금형조립체에는, 상기 제1연결부홀에 삽입되되 상기 제1-2성형돌기보다 길이가 긴 돌기가 형성될 수 있다.The body hole molding die assembly may include a protrusion inserted into the first connection hole and having a length longer than that of the 1-2 molding protrusion.
상기 몸통부홀성형금형조립체는, 상기 제2몸통부홀의 일부가 형성되는 제2-1성형물을 성형하는 제1몸통부홀성형금형조립체; 및 상기 제2몸통부홀의 나머지를 성형하여 상기 제2성형물을 완성하는 제2몸통부홀성형금형조립체;로 구분되고, 상기 제1몸통부홀성형금형조립체에는 상기 제1-2성형돌기 보다 길이가 긴 제2-1돌기가 형성될 수 있다.The body hole molding mold assembly may include: a first body hole molding mold assembly configured to mold a 2-1 molding in which a part of the second body hole is formed; And a second body hole molding mold assembly configured to mold the remainder of the second body hole to complete the second molding, wherein the first body hole molding mold assembly has a length longer than that of the first and second molding protrusions. The 2-1 protrusion may be formed.
상기 제2몸통부홀성형금형조립체에는 상기 제2-1돌기 보다 길이가 긴 제2-2돌기가 형성될 수 있다.The second body hole molding mold assembly may have a second-2 protrusion having a length longer than that of the second-1 protrusion.
상기 제2연결부성형금형조립체에서, 상기 제1-1성형물이 삽입 후 가압될 때, 상기 제1-2금형이 가압방향 뒤쪽으로 슬라이딩될 수 있다.In the second connection part mold assembly, when the first-first molding is pressed after insertion, the first-second mold may slide backward in the pressing direction.
상기 제2성형물은, 중앙에 일측으로 개구된 상기 제2몸통부홀이 형성된 제2몸통부 및 중앙에 상기 제2몸통부홀 반대쪽으로 개구된 제2연결부홀이 형성되고 상기 제2몸통부보다 직경이 작은 제2연결부를 포함하고, 상기 연통금형조립체는, 상기 제2성형물이 상기 제2몸통부 쪽에서 삽입되는 제3삽입홀이 형성된 제3금형; 상기 제2성형물의 상기 제2연결부 쪽을 가압지지하는 제3성형하우징; 및 상기 제2성형물에서 상기 제2몸통부홀과 제2연결부홀 사이를 가압하여 서로 연통되도록 하는 제3펀치를 포함하여 이루어질 수 있다.The second molding may have a second body portion having the second body portion hole opened to one side at a center thereof, and a second connecting portion hole formed to be opposite to the second body portion hole at the center thereof, and having a diameter greater than that of the second body portion. It includes a small second connecting portion, the communication mold assembly, the third mold is formed with a third insertion hole is inserted into the second molded body side; A third molding housing configured to press-support the second connecting portion of the second molding; And a third punch in the second molding to communicate with each other by pressing between the second body portion hole and the second connection portion hole.
상기 제3펀치는 상기 제3삽입홀 중앙에 놓이도록 배치되고 상기 제2몸통부홀 쪽에서 삽입되어 상기 제2성형물을 가압하도록 이루어질 수 있다.The third punch may be disposed to be positioned at the center of the third insertion hole and inserted into the second body hole to pressurize the second molding.
상기 연통금형조립체는, 상기 제3펀치 일부를 감싸며 상기 제2몸통부 전단과 마주하고, 상기 제2성형물의 삽입방향 전후로 슬라이딩되는 제3슬리브; 및 상기 제3슬리브를 상기 제3성형하우징 쪽으로 밀며 상기 제2성형물이 인출되도록하는 제3인출로드를 더 포함하여 이루어질 수 있다.The communication mold assembly may include: a third sleeve surrounding a portion of the third punch and facing the front end of the second body portion and sliding back and forth in an insertion direction of the second molding; And a third drawing rod that pushes the third sleeve toward the third molding housing and allows the second molding to be drawn out.
상기 제3금형은 상기 제3성형하우징 반대쪽으로 슬라이딩 가능하게 이루어지고, 상기 연통금형조립체는, 상기 제3금형을 상기 제3성형하우징 쪽으로 가압하는 제3탄성체를 더 포함하여 이루어질 수 있다.The third mold may be slidable to the opposite side of the third molding housing, and the communication mold assembly may further include a third elastic body that presses the third mold toward the third molding housing.
상기 연통금형조립체는, 내부에서 상기 제3금형이 슬라이딩되고, 전단에 상기 제3금형이 걸리는 걸림턱이 형성된 제3전방케이스; 및 상기 제3전방케이스 후단에 결합하고, 앞쪽에 상기 제3펀치의 후단이 밀착되며, 상기 제3인출로드가 관통되는 제3후방케이스를 더 포함하여 이루어질 수 있다.The communication mold assembly may include: a third front case in which the third mold is slid in an inner side, and a latching jaw in which the third mold is caught at a front end thereof; And a third rear case coupled to the rear end of the third front case, the rear end of the third punch being in close contact with the front, and the third lead-out rod penetrated therethrough.
상기 제3슬리브의 앞쪽 외주면은 상기 제3삽입홀 내주면에 이격없이 밀착되고, 상기 제3슬리브의 내주면은 상기 제3펀치의 가운데 외주면에 이격없이 밀착되도록 이루어질 수 있다.The front outer circumferential surface of the third sleeve may be in close contact with the inner circumferential surface of the third insertion hole, and the inner circumferential surface of the third sleeve may be in close contact with the outer circumferential surface of the third punch.
상기 제3펀치의 앞쪽은 상기 제2연결부의 길이보다 긴 구간에서 상기 제2연결부홀의 내경과 동일한 외경을 갖고, 상기 제3펀치의 가운데는 상기 제2몸통부홀의 내경과 동일한 외경을 갖도록 이루어질 수 있다.The front side of the third punch may have an outer diameter equal to the inner diameter of the second connecting portion hole in a section longer than the length of the second connecting portion, and the center of the third punch may have the same outer diameter as the inner diameter of the second body portion hole. have.
상기 제3성형하우징 내부로 상기 제2연결부가 삽입되고, 상기 제3성형하우징 내부에는 배출구가 형성될 수 있다.The second connecting portion may be inserted into the third molding housing, and an outlet may be formed in the third molding housing.
상기 제3성형물은, 중앙에 일측으로 개구된 제3몸통부홀이 형성된 제3몸통부 및 중앙에 상기 제3몸통부홀과 연통된 제3연결부홀이 형성되고 상기 제3몸통부보다 직경이 작은 제3연결부를 포함하고, 상기 머리부성형금형조립체는, 상기 제3성형물이 상기 제3연결부 쪽에서 삽입되는 제4삽입홀 형성된 제4금형; 전단부가 상기 제4삽입홀에 삽입되어 상기 제3성형물을 지지하는 제4외측슬리브; 및 용접용 와이어 직경과 같거나 크고 상기 제3몸통부홀 내부로 삽입되는 마감핀이 중앙에 형성되고, 상기 제3성형물의 상기 제3몸통부 쪽을 가압하여 제4머리부홀을 성형하는 제4성형하우징;을 포함하여 이루어질 수 있다.The third molded part may include a third body part having a third body hole opened to one side at a center thereof, and a third connection hole communicating with the third body hole at a center thereof, and having a diameter smaller than that of the third body part. The head molding mold assembly includes three connection parts, and includes: a fourth mold having a fourth insertion hole into which the third molding is inserted from the third connection part; A fourth outer sleeve having a front end inserted into the fourth insertion hole to support the third molding; And a finishing pin having a diameter equal to or larger than a welding wire diameter and inserted into the third body hole, at the center thereof, and pressing the third body portion of the third molding to form a fourth head hole. It may comprise a housing.
상기 머리부성형금형조립체는, 상기 제4삽입홀 중앙선상에 위치하고 전단부가 상기 제3연결부홀 쪽에서 삽입되는 제4돌기가 더 포함될 수 있다.The head molding mold assembly may further include a fourth protrusion positioned on the fourth insertion hole center line and having a front end inserted into the third connection hole.
상기 머리부성형금형조립체는, 상기 제4돌기 일부를 감싸며 상기 제3연결부 전단을 지지하고, 상기 제3성형물의 삽입방향 전후로 슬라이딩되는 제4내측슬리브; 및 상기 제4내측슬리브를 상기 제3성형하우징 쪽으로 밀며 상기 제3성형물이 인출되도록하는 제4인출로드를 더 포함하여 이루어질 수 있다.The head mold assembly includes: a fourth inner sleeve surrounding a portion of the fourth protrusion to support the front end of the third connecting portion and sliding back and forth in an insertion direction of the third molded product; And a fourth drawing rod that pushes the fourth inner sleeve toward the third molding housing and draws the third molding.
상기 제4금형은 상기 제4성형하우징 반대쪽으로 슬라이딩 가능하게 이루어지고, 상기 머리부성형금형조립체는, 상기 제4금형을 상기 제4성형하우징 쪽으로 가압하는 제4탄성체를 더 포함하여 이루어질 수 있다.The fourth mold may be slidably opposite the fourth molding housing, and the head mold assembly may further include a fourth elastic body for pressing the fourth mold toward the fourth molding housing.
상기 머리부성형금형조립체는, 내부에서 상기 제4금형이 슬라이딩되고, 전단에 상기 제4금형이 걸리는 걸림턱이 형성된 제4전방케이스; 및 상기 제4전방케이스 후단에 밀착되고, 앞쪽에 상기 제4돌기의 후단이 밀착되며, 상기 제4인출로드가 관통되는 제4후방케이스를 더 포함하여 이루어질 수 있다.The head molding mold assembly includes: a fourth front case in which the fourth mold is slid in an inner side, and a latching jaw in which the fourth mold is caught at a front end thereof; And a fourth rear case in close contact with the rear end of the fourth front case, in close contact with the rear end of the fourth protrusion in front, and through the fourth lead-out rod.
상기 머리부성형금형조립체는, 상기 제4전방케이스 또는 제4후방케이스에 결합되고, 상기 제4외측슬리브의 이동을 저지하는 고정구를 더 포함하여 이루어질 수 있다.The head molding mold assembly may be coupled to the fourth front case or the fourth rear case, and may further include a fastener that prevents the movement of the fourth outer sleeve.
상기 제4후방케이스에는 상기 제4외측슬리브 뒤쪽을 감싸는 슬리브고정부가 형성되고, 상기 고정구는 상기 슬리브고정부 전단에 나사결합될 수 있다.The fourth rear case may include a sleeve fixing portion surrounding the fourth outer sleeve, and the fixture may be screwed to the front end of the sleeve fixing portion.
상기 제4외측슬리브의 앞쪽 외주면은 상기 제4삽입홀 내주면에 이격없이 밀착되고, 상기 제4외측슬리브의 앞쪽 내주면은 상기 제4내측슬리브 외주면에 이격없이 밀착되며, 상기 제4내측슬리브의 내주면은 상기 제4돌기의 가운데 외주면에 이격없이 밀착될 수 있다.The front outer peripheral surface of the fourth outer sleeve is in close contact with the inner peripheral surface of the fourth insertion hole, the front inner peripheral surface of the fourth outer sleeve is in close contact with the outer peripheral surface of the fourth inner sleeve, the inner peripheral surface of the fourth inner sleeve is It may be in close contact with the outer peripheral surface of the center of the fourth projection without space.
상기 제4돌기의 앞쪽은 상기 제3연결부의 길이보다 긴 구간에서 상기 제2연결부홀의 내경과 동일한 외경을 갖도록 이루어질 수 있다.The front side of the fourth protrusion may be made to have an outer diameter equal to the inner diameter of the second connecting portion hole in a section longer than the length of the third connecting portion.
상기 제4성형하우징이 상기 제4금형과 마주하는 쪽 내부는 상기 머리부에 대응되는 형태로 이루어질 수 있다.The inner side of the fourth molding housing facing the fourth mold may have a shape corresponding to the head.
본 발명에 의하면, 연결부성형금형조립체를 이용한 연결부성형단계에서 제1-2성형돌기를 측면방향으로 가압하는 것이 아니라 길이방향으로만 가압하게 되고 제1-2성형돌기에 측면방향 하중의 작용이 거의 발생하지 않게 되므로 제1-2성형돌기의 파손이 방지되고, 제1연결부홀의 성형시 제1-1성형물에 빈 공간이 없으므로 제1-1성형물의 일부가 외력에 의하여 의도하지 않은 방향으로 소성변형되는 것이 방지되게 된다. According to the present invention, in the connecting part molding step using the connecting part mold assembly, the first and second molding protrusions are not pressed in the lateral direction but only in the longitudinal direction, and the action of the lateral load on the 1-2 molding protrusion is almost not applied. Since it does not occur, breakage of the 1-2 molding protrusion is prevented, and since there is no empty space in the 1-1 molding when the first connection hole is formed, a part of the 1-1 molding is plastically deformed in an unintended direction due to external force. To be prevented.
또한, 제2연결부성형금형조립체를 이용한 제2연결부성형단계에서 제1-2금형은 슬라이딩되므로, 제1-2성형돌기가 예비연결부에 접촉하는 순간 무리한 하중이 가해지는 것이 방지되며, 제1-2성형돌기가 예비연결부에 가하는 하중을 슬라이딩 과정 전체에 분산시킬 수 있으므로, 제1-2성형돌기의 파손을 방지할 수 있게 된다.In addition, since the first-second mold is slid in the second connection-molding step using the second connection-molding mold assembly, an excessive load is prevented from being applied when the first-second molding protrusion contacts the preliminary connection part. Since the load applied to the preliminary connecting portion by the two forming protrusions can be distributed throughout the sliding process, it is possible to prevent breakage of the 1-2 forming protrusions.
또한, 연결부홀이 연결부성형금형조립체 및 몸통부홀성형금형조립체를 통하여 형성되므로, 연결부홀이 여러 단계를 거쳐 순차적으로 성형되도록 하며, 하중의 분산이 이루어지고 성형시의 파손 내지는 손상을 방지할 수 있다.In addition, since the connection hole is formed through the connection molding die assembly and the trunk hole molding assembly, the connection holes are sequentially formed through several steps, load distribution is made, and damage or damage during molding can be prevented. .
도 1a는 종래의 일반적인 용접토치를 도시한 분해사시도이다.1A is an exploded perspective view illustrating a conventional general welding torch.
도 1b는 도1a의 컨택트팁을 도시한 단면도이다.FIG. 1B is a cross-sectional view of the contact tip of FIG. 1A. FIG.
도 2a 내지 도 2d는 종래의 컨택트팁 제조장치 및 이 제조장치에 의해 제조되는 컨택트팁의 과정을 도시한 단면도이다.2A to 2D are cross-sectional views illustrating a conventional contact tip manufacturing apparatus and a process of the contact tip manufactured by the manufacturing apparatus.
도 3은 본 발명의 일 실시예에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치에 의하여 제조되는 컨택트팁의 측면도 및 단면도이다.3 is a side view and a cross-sectional view of the contact tip manufactured by the contact tip manufacturing apparatus for welding torch using the forging method according to an embodiment of the present invention.
도 4는 본 발명의 일 실시예에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치의 사용에 따른 공정순서를 나타낸 도면이다.Figure 4 is a view showing the process sequence according to the use of the contact tip manufacturing apparatus for welding torch using the forging method according to an embodiment of the present invention.
도 5는 도 4에 도시된 컨택트팁 제조공정에 의해 제조되는 성형물을 공정 순서에 따라 도시한 단면도이다.FIG. 5 is a cross-sectional view illustrating a molded product manufactured by the contact tip manufacturing process illustrated in FIG. 4 according to a process sequence.
도 6은 본 발명의 일 실시예에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치를 개략적으로 도시한 단면도이다.6 is a cross-sectional view schematically showing an apparatus for manufacturing a contact torch for a welding torch using a forging method according to an embodiment of the present invention.
도 7은 본 발명의 다른 실시예에 따른 용접토치용 컨택트팁 제조장치에 따라 제조되는 컨택트팁을 공정 순서에 따라 도시한 단면도이다.FIG. 7 is a cross-sectional view illustrating a contact tip manufactured according to an apparatus for manufacturing a contact torch for a welding torch according to another embodiment of the present invention in a process sequence. FIG.
도 8은 도 7에 따른 컨택트팁의 제조에 사용되는 제조장치를 개략적으로 도시한 단면도이다.8 is a cross-sectional view schematically showing a manufacturing apparatus used for manufacturing the contact tip according to FIG.
도 9는 도 6에 따른 제조장치를 좀더 구체적으로 도시한 단면도이다.9 is a cross-sectional view illustrating the manufacturing apparatus according to FIG. 6 in more detail.
도 10은 본 발명의 또 다른 실시예에 따른 제조장치를 도시한 단면도이다.10 is a cross-sectional view showing a manufacturing apparatus according to another embodiment of the present invention.
도 11a는 도 10에 도시된 연통금형조립체를 도시한 단면도이다.FIG. 11A is a cross-sectional view of the communication mold assembly illustrated in FIG. 10. FIG.
도 11b 및 도 11c는 도 11a에 도시된 연통금형조립체의 작동상태를 도시한 단면도이다.11B and 11C are sectional views showing an operating state of the communication mold assembly shown in FIG. 11A.
도 12a는 도 9에 도시된 머리부성형금형조립체를 도시한 단면도이다.FIG. 12A is a cross-sectional view of the head mold assembly shown in FIG. 9. FIG.
도 12b 및 도 12c는 도 12a에 도시된 머리부성형금형조립체의 작동상태를 도시한 단면도이다.12B and 12C are cross-sectional views showing an operating state of the head mold assembly shown in FIG. 12A.
* 도면의 주요부분에 관한 부호의 설명 *Explanation of symbols on main parts of drawing
10 : 연결부성형금형조립체 11 : 제1연결부성형금형조립체10: connection mold assembly 11: first connection mold assembly
12 : 제2연결부성형금형조립체 13 : 제1'연결부성형금형조립체12: second connection part mold assembly 13: first 'connection part mold assembly
20 : 몸통부홀성형금형조립체 21 : 제1몸통부홀성형금형조립체20: body part hole molding mold assembly 21: first body part hole molding mold assembly
22 : 제2몸통부홀성형금형조립체 30 : 연통금형조립체22: second body hole molding mold assembly 30: communication mold assembly
40 : 머리부성형금형조립체 50 : 다각형성형금형조립체40: head molding mold assembly 50: polygon molding mold assembly
200 : 컨택트팁 210 : 몸통부200: contact tip 210: body
211 : 몸통부홀 220 : 연결부211: body portion hole 220: connection portion
221 : 연결부홀 230 : 머리부221: connection hole 230: head
231 : 머리부홀 300 : 모재231: head hole 300: the base material
310 : 제1-1성형물 311 : 예비홈310: 1-1 molding 311: preliminary groove
312 : 예비연결부 313 : 예비몸통부홀312: spare connection 313: spare body hole
310' : 제1-3성형물 311' : 제2예비홈310 ': 1 -3 molding 311': 2nd spare groove
312' : 예비돌부 313' : 제1-3예비몸통부홀312 ': Spare protrusion 313': 1-3 body spare hole
320, 302' : 제1성형물 321, 321' : 제1연결부홀320, 302 ': first molding 321, 321': first connection hole
322, 322' : 제1연결부 323, 323' : 제1예비몸통부홀322, 322 ': first connection part 323, 323': first spare body hole
330 : 제2-1성형물 331 : 제2-1연결부홀330: 2-1 molding 331: 2-1 connection hole
332 : 제2-1연결부 333 : 제201몸통부홀332: connection 2-1 333: 201 body hole
340 : 제2성형물 341 : 제2연결부홀340: second molding 341: second connection hole
342 : 제2연결부 343 : 제2몸통부홀342: second connection portion 343: second body portion hole
344 : 제2몸통부 350 : 제3성형물344: second body portion 350: third molding
351 : 제3연결부홀 352 : 제3연결부351: third connector hole 352: third connector
353 : 제3몸통부홀 354 : 제3몸통부353: third body portion hole 354: third body portion
360, 360' : 제4성형물 361, 361' : 제4연결부홀360, 360 ': 4th moldings 361, 361': 4th connection hole
362, 362' : 제4연결부 363, 363' : 제4몸통부홀362, 362 ': 4th connection part 363, 363': 4th body hole
364, 364' : 제4머리부홀 370 : 제5성형물364, 364 ': fourth head hole 370: fifth molding
410 : 제1-1금형 411 : 제1-1성형홀410: 1-1 mold 411: 1-1 molding hole
412 : 제1-1연결부성형홀 413 : 제1-1성형돌기412: 1-1 connection molding hole 413: 1-1 molding protrusion
410' : 제1-3금형 411' : 제1-3성형홀410 ': mold 1-3 411': mold 1-3
413' : 제1-3성형돌기413 ': 1-3 forming protrusion
420 : 제1-2금형 421 : 제1-2성형홀420: 1-2 mold 421: 1-2 molding hole
422 : 제1-2연결부성형홀 423 : 제1-2성형돌기422: 1-2 connection part forming hole 423: 1-2 molding protrusion
430 : 제2-1금형 431 : 제2-1홀430: 2-1 mold 431: 2-1 hole
432 : 제2-1돌기 440 : 제2-2금형432: 2-1 protrusion 440: 2-2 mold
441 : 제2-2홀 442 : 제2-2돌기441 hole 2-2 hole 442 protrusion 2-2
450 : 제3금형 450a : 제3삽입홀450: third mold 450a: third insertion hole
451 : 제3펀치 452 : 제3탄성체451: third punch 452: third elastic body
453 : 탄성체안착부 454 : 제3슬리브453: elastic seating portion 454: third sleeve
455 : 제3인출로드 456 : 제3전방케이스455: third withdrawal rod 456: third front case
456a : 걸림턱 457 : 제3후방케이스456a: Jam Jaw 457: Third Rear Case
460 : 제4금형 460' : 제4-1금형460: mold 4 460 ': mold 4-1
460a : 제4삽입홀 461 : 제4홀460a: fourth insertion hole 461: fourth hole
462 : 제4돌기462: fourth projection
463 : 제4외측슬리브 464 : 제4내측슬리브463: fourth outer sleeve 464: fourth inner sleeve
465 : 제4인출로드 466 : 제4전방케이스465: fourth withdrawal rod 466: fourth front case
466a : 걸림턱 467 : 제4후방케이스466a: Jaw Jaw 467: Fourth Rear Case
467a : 슬리브고정부 468 : 고정구467a: sleeve fixing part 468: fixture
469 : 제4탄성체 470 : 제5금형469: fourth elastic body 470: the fifth mold
510 : 제1-1펀치 511 : 예비몸통부돌기510: 1-1 punch 511: a spare body projection
520 : 제1-2펀치 521 : 제1-2예비몸통부돌기520: 1-2 punch 521: 1-2 spare body projection
530 : 제2-1펀치 540 : 제2-2펀치530: punch 2-1 540: punch 2-2
550 : 제3성형하우징 552 : 배출구550: third molding housing 552: outlet
560 : 제4성형하우징 561 : 제4-1홀560: 4th molding housing 561: 4-1 hole
562 : 제4-1돌기 565 : 마감핀562: 4-1 protrusion 565: finishing pin
570 : 제5성형하우징570: 5th molding housing
S100 : 모재준비단계 S200 : 연결부성형단계S100: Base material preparation step S200: Connection part forming step
S210 : 제1연결부성형단계 S220 : 제2연결부성형단계S210: first connection part molding step S220: second connection part molding step
S300 : 몸통부홀성형단계 S310 : 제1몸통부홀성형단계S300: torso hole molding step S310: torso hole molding step
S320 : 제2몸통부홀성형단계 S400 : 연통단계S320: second body hole molding step S400: communication step
S500 : 머리부성형단계 S600 : 다각형성형단계S500: Head molding step S600: Polygon molding step
S700 : 마감처리단계S700: Finishing Step
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예들을 상세하게 설명하면 다음과 같다. 다만, 본 발명을 설명함에 있어서, 이미 공지된 기능 혹은 구성에 대한 설명은, 본 발명의 요지를 명료하게 하기 위하여 생략하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.
도 3은 본 발명의 일 실시예에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치에 의하여 제조되는 컨택트팁(200)의 측면도 및 단면도이고, 도 4는 본 발명의 일 실시예에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치의 사용에 따른 공정순서를 나타낸 도면이고, 도 5는 도 4에 도시된 컨택트팁 제조공정에 의해 제조되는 성형물을 공정 순서에 따라 도시한 단면도이며, 도 6은 본 발명의 일 실시예에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치를 개략적으로 도시한 단면도이다.Figure 3 is a side view and a cross-sectional view of the contact tip 200 manufactured by the contact tip manufacturing apparatus for welding torch using the forging method according to an embodiment of the present invention, Figure 4 is a forging method according to an embodiment of the present invention FIG. 5 is a view illustrating a process sequence according to the use of a contact torch contact tip manufacturing apparatus using a welding torch, and FIG. 5 is a cross-sectional view of a molded product manufactured by the contact tip manufacturing process shown in FIG. A cross-sectional view schematically showing an apparatus for manufacturing a contact tip for a welding torch using a forging method according to an exemplary embodiment of the present invention.
본 발명에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치에 의한 컨택트팁(200)은 몸통부(210), 몸통부(210)보다 외경이 작고 용접토치의 가스디퓨저에 연결되는 연결부(220) 및 연결부(220)의 반대쪽에 형성되는 머리부(230)를 포함하여 이루어진다. 연결부(220) 외주면에는 통상, 가스디퓨저와 나사결합을 위하여 나사산이 형성되나, 도면상 생략되어 있다.The contact tip 200 by the welding torch contact tip manufacturing apparatus using the forging method according to the present invention has a smaller outer diameter than the body portion 210, the body portion 210 and is connected to the gas diffuser of the welding torch 220 And a head 230 formed on the opposite side of the connecting portion 220. A thread is formed on the outer circumferential surface of the connecting portion 220 for screwing the gas diffuser, but is omitted in the drawing.
그리고 컨택트팁(200)은 길이방향을 따라 중앙이 관통되며, 머리부홀(231), 몸통부홀(211) 및 연결부홀(221)이 순서대로 연통되어 이루어진다. 머리부홀(231)은 용접용 와이어가 송급되는 통로이며, 용접용 와이어 직경보다 약간 큰 직경으로 이루어진다. 용접용 와이어는 사용되는 용도에 따라 그 직경이 다양하게 이루어질 수 있는데, 예컨대, 용접용 와이어 직경이 1.6mm라면, 머리부홀(231)은 1.7mm 직경을 갖도록 약간 크게 형성되어 용접용 와이어의 송급이 자연스럽게 이루어지도록 하는 것이 바람직하다.In addition, the contact tip 200 penetrates the center along the longitudinal direction, and the head hole 231, the body hole 211, and the connection hole 221 communicate with each other in order. The head hole 231 is a passage through which the welding wire is fed, and has a diameter slightly larger than the diameter of the welding wire. The welding wire may have various diameters according to the intended use. For example, if the welding wire diameter is 1.6 mm, the head hole 231 is slightly larger to have a diameter of 1.7 mm so that the supply of the welding wire is reduced. It is desirable to make it natural.
도 3에 도시된 바와 같이, 본 발명에서 머리부홀(231)은 머리부(230) 내측에 위치하는 통로구간을 말하고, 연결부홀(221)은 연결부(220) 내측에 위치하는 통로구간을 말하고, 몸통부홀(211)은 몸통부(210) 내측에 위치하는 통로구간을 말한다. As shown in FIG. 3, in the present invention, the head hole 231 refers to a passage section located inside the head 230, and the connection hole 221 refers to a passage section located inside the connecting portion 220. The body hole 211 refers to a passage section located inside the body portion 210.
몸통부홀(211) 및 연결부홀(221)의 직경은 머리부홀(231)보다 약간 크게 형성될 수 있고 특히 몸통부홀(211) 직경은 연결부홀(221)보다 크게 형성될 수 있는데, 이러한 구조는 컨택트팁(200)의 제조의 편의를 제공할 수 있다.The diameter of the body hole 211 and the connection hole 221 may be formed slightly larger than the head hole 231, in particular the diameter of the body hole 211 may be formed larger than the connection hole 221, this structure is a contact It may provide convenience of manufacture of tip 200.
본 발명에 대한 설명에서, 머리부(230) 쪽을 앞쪽으로 정하고, 연결부(220) 쪽을 뒤쪽으로 정하여 설명한다. 또한, 이러한 방향은, 컨택트팁(200)이 완성되기 이전의 성형물인, 제1성형물(320), 제2성형물(340), 제3성형물(350), 제4성형물(360), 제5성형물(370) 등에서도 마찬가지로 적용된다. In the description of the present invention, the head 230 is set to the front side, and the connecting portion 220 is set to the rear and will be described. In addition, this direction is the first molding 320, the second molding 340, the third molding 350, the fourth molding 360, the fifth molding, which is a molding before the contact tip 200 is completed. The same applies to 370 and the like.
본 발명에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치는 냉간단조(cold forging, 冷間鍛造)에 의하여 상기 컨택트팁(200)을 제조하기 위한 것이며, 연결부성형금형조립체(10)(제1연결부성형금형조립체(11) 및 제2연결부성형금형조립체(12)), 몸통부홀성형금형조립체(20)(제1몸통부홀성형금형조립체(21) 및 제2몸통부홀성형금형조립체(22)), 연통금형조립체(30), 머리부성형금형조립체(40) 및 다각형성형금형조립체(50)를 포함하고, 각 조립체를 순서대로 거치면서 연속하여 성형이 이루어진다. The welding torch contact tip manufacturing apparatus using the forging method according to the present invention is for manufacturing the contact tip 200 by cold forging (冷 間 鍛造), connection molding mold assembly 10 (first) Connection Mold Mold Assembly (11) and Second Connection Mold Mold Assembly (12), Body Hole Mold Mold Assembly (20) (First Body Hole Mold Mold Assembly (21) and Second Body Hole Mold Mold Assembly (22)) , A communication mold assembly 30, a head mold assembly 40, and a polygonal mold assembly 50 are formed, and the molding is continuously performed while sequentially passing through each assembly.
이에 따라, 연결부성형금형조립체(10)(제1연결부성형금형조립체(11) 및 제2연결부성형금형조립체(12)), 몸통부홀성형금형조립체(20)(제1몸통부홀성형금형조립체(21) 및 제2몸통부홀성형금형조립체(22)), 연통금형조립체(30), 머리부성형금형조립체(40) 및 다각형성형금형조립체(50) 각각의 작동에 따른 공정은, 연결부성형단계(S200)(제1연결부성형단계(S210) 및 제2연결부성형단계(S220)), 몸통부홀성형단계(S300)(제1몸통부홀성형단계(S310) 및 제2몸통부홀성형단계(S320)), 연통단계(S400), 머리부성형단계(S500) 및 다각형성형단계(S600)로 설명될 수 있고, 다만 모재준비단계(S100)와 마감처리단계(S700)를 더 포함하게 된다. 예컨대, 몸통부홀성형금형조립체(20)의 사용에 따른 공정은, 몸통부홀성형단계(S300)로 설명될 수 있다.Accordingly, the connection part mold assembly 10 (the first connection part mold assembly 11 and the second connection part mold assembly 12), the body part hole molding mold assembly 20 (the first body part hole molding mold assembly 21) ) And the second body hole molding mold assembly 22), the communication mold assembly 30, the head molding mold assembly 40 and the polygonal molding mold assembly 50, the operation according to the operation of each, the connection molding step (S200) ) (The first connecting portion molding step (S210) and the second connecting portion molding step (S220)), the body hole forming step (S300) (the first body hole forming step (S310) and the second body hole forming step (S320)), Communication step (S400), the head molding step (S500) and may be described as a polygon molding step (S600), but will further include a base material preparation step (S100) and finishing treatment step (S700). For example, the process according to the use of the body hole molding mold assembly 20 may be described as a body hole molding step (S300).
본 발명에 따른 제조장치는, 냉간단조용 포밍머신(forming machine) 형태로 이루어질 수 있고, 각 조립체의 작동에 따른 공정의 실행은 자동화되는 것이 바람직하다. 각 단계는 한 번의 왕복공정에 의하여 완성된다. 이하, 이러한 컨택트팁의 제조장치의 사용을 공정의 순서대로 설명한다.The manufacturing apparatus according to the present invention may be formed in the form of a cold forging forming machine, and the execution of the process according to the operation of each assembly is preferably automated. Each step is completed by one reciprocating process. Hereinafter, the use of such a contact tip manufacturing apparatus will be described in the order of the steps.
본 발명에 따른 컨택트팁(200)의 제조를 위하여, 우선 원기둥 형상의 모재(300)를 준비한다. 이러한 모재(300)는 크롬동, 지르코늄동, 베릴륨동과 같이 강도가 높은 재질로 이루어지고, 압출성형에 의하여 제조되는 강선 형태의 재료를 일정한 길이로 절단함으로써 마련될 수 있다. 냉간단조용 포밍머신(forming machine)의 일측에, 강선이 삽입되면서 커터(500)에 의해 일정한 길이로 반복하여 절단되도록 하는 장치(400)를 설치함으로써 모재준비단계(S100)가 자동화되도록 할 수 있다.In order to manufacture the contact tip 200 according to the present invention, first, a cylindrical base material 300 is prepared. The base material 300 may be made of a material having high strength, such as chromium copper, zirconium copper, and beryllium copper, and may be prepared by cutting a steel wire-shaped material manufactured by extrusion molding to a certain length. On one side of the forming machine for forming a cold forging, by installing a device 400 to be repeatedly cut to a predetermined length by the cutter 500 while the steel wire is inserted can be the base material preparation step (S100) to be automated. .
모재(300)는 원기둥 형상으로, 내부가 모두 채워져 있는 것이며, 그 직경은 제조가 완료된 컨택트팁(200)의 직경과 동일하게 이루어지는 것이 바람직하다. 다만, 제조과정에서 소성변형에 의하여 내부가 관통되고 길이가 길어지게 되므로, 제조가 완료된 컨택트팁(200)에 비하여 길이가 약간 짧도록 한다. 이러한 모재(300)가 도 5(a)에 나타난다.The base material 300 is a cylindrical shape, the inside of which is all filled, the diameter is preferably made the same as the diameter of the contact tip 200 is completed. However, since the inside is penetrated by the plastic deformation during the manufacturing process and the length becomes longer, the length is slightly shorter than that of the contact tip 200 that has been manufactured. This base material 300 is shown in Figure 5 (a).
모재준비단계(S100) 완료 후 연결부성형단계(S200)가 이루어지며, 이 단계에서 모재(300)를 가압하면서 제1연결부(322) 및 제1연결부홀(321)이 형성된다. 제1연결부홀(321)의 성형이 완료된 형태가 도 5(c)에 도시된다. 연결부성형단계(S200)는 제1연결부성형단계(S210)와 제2연결부성형단계(S220)로 구분되어 이루어지는 것이 바람직하다. 앞서 언급한 바와 같이, 연결부성형단계(S200)는 연결부성형금형조립체(10)의 사용에 따라 이루어진다. 이 연결부성형금형조립체(10)는 제1연결부성형금형조립체(11)와 제2연결부성형금형조립체(12)로 구분되고, 제1연결부성형금형조립체(11)는 제1-1금형(410)과 제1-1펀치(510)를 포함하며, 제2연결부성형금형조립체(12)는 제1-2금형(420)과 제1-2펀치(520)를 포함한다. 이와 달리, 제1-3금형(410')과 제1-3펀치(510')를 포함하는 제1'연결부성형금형조립체(13)가 사용될 수 있는데, 이는 후술하기로 한다.After the base material preparation step S100 is completed, the connection part forming step S200 is performed. In this step, the first connection part 322 and the first connection part hole 321 are formed while pressing the base material 300. Forming of the first connection hole 321 is shown in Figure 5 (c). The connection part molding step S200 is preferably made of a first connection part molding step S210 and a second connection part molding step S220. As mentioned above, the connection part forming step (S200) is made according to the use of the connection part mold assembly (10). The connection mold assembly 10 is divided into a first connection mold assembly 11 and a second connection mold assembly 12, and the first connection mold mold assembly 11 is a 1-1 mold 410. And a first-first punch 510, and the second connection mold assembly 12 includes the first-second mold 420 and the first-second punch 520. Alternatively, the first 'connected part mold assembly 13 including the 1-3 mold 410' and the 1-3 punch 510 'may be used, which will be described later.
제1연결부성형단계(S210)에서, 모재(300)는 제1-1금형(410) 내부에 삽입된 후, 제1-1펀치(510)에 의하여 가압되면서 단조성형된다. 제1-1금형(410)은 모재(300)의 직경과 동일('물리적으로 완전히 동일'한 것을 의미하는 것은 아니고, 삽입을 허용하는 범위 내에서 약간 큰 경우를 포함, 이하 같음)한, 즉 컨택트팁(200)의 외경과 동일한 내경을 갖는 제1-1성형홀(411)과, 제1-1성형홀(411) 내측 단부에 연결부(220) 외경과 동일한 제1-1연결부성형홀(412)이 형성된다. 여기서, 컨택트팁(200)의 연결부(220)는 통상 가스디퓨저와 나사결합되어 나사가공되므로, '연결부(220) 외경'은 나사가공 이전의 직경을 말한다.In the first connection portion forming step (S210), the base material 300 is inserted into the first-first mold 410 and then press-formed by the first-first punch 510 to be forged. The first-first mold 410 is the same as the diameter of the base material 300 (which does not mean 'physically completely the same', but includes a slightly larger case within the range to allow insertion; The 1-1st molding hole 411 having the same inner diameter as the outer diameter of the contact tip 200, and the 1-1st connecting hole forming hole (1-1) with the outer diameter of the connection portion 220 at the inner end of the 1-1st molding hole 411 ( 412 is formed. Here, the connection part 220 of the contact tip 200 is usually screwed with the gas diffuser is screwed, 'connecting portion 220 outer diameter' refers to the diameter before the threading process.
제1-1성형홀(411)과 제1-1연결부성형홀(412)이 연결되는 부분은 완만한 경사면 또는 곡면을 갖도록 형성되며, 이에 의하여 모재(300)가 예비연결부(312)를 형성하기 위하여 소성변형될 때 미끄러져 이동함으로써 자연스럽게 성형될 수 있다.The part where the first-first molding hole 411 and the first-first connection molding hole 412 are connected is formed to have a gentle inclined surface or curved surface, whereby the base material 300 forms the preliminary connection part 312. It can be shaped naturally by sliding and moving when plastically deformed.
제1-1연결부성형홀(412) 중앙 하단에는 후술할 제1-2성형돌기(423)보다 짧은 제1-1성형돌기(413)가 형성되고, 제1-1성형돌기(413)에 의하여 예비홈(311)이 형성된다. 이러한 예비홈(311)의 형성에 의하여 제1-2성형돌기(423)가 자연스럽게 예비홈(311) 내부로 자리를 잡게 되며 제1연결부홀(321)의 성형을 돕는다.At the center lower end of the first-first connection part forming hole 412, a first-first molding protrusion 413 is formed, which is shorter than the first-second molding protrusion 423 to be described later, and is formed by the first-first molding protrusion 413. The preliminary groove 311 is formed. By the formation of the preliminary groove 311, the second molding protrusion 423 naturally sits in the preliminary groove 311 and helps to form the first connection hole 321.
제1-1금형(410)과의 상호작용으로 제1-1성형물(310)을 단조성형하기 위하여 제1-1펀치(510)가 마련되며, 제1-1펀치(510)의 외경은 제1-1성형홀(411)의 내경과 같도록 형성된다. 제1-1펀치(510)의 단부에는 예비몸통부홀(313) 형성을 위한 예비몸통부돌기(511)가 형성된다.A first-first punch 510 is provided to forge the first-first molded product 310 by interacting with the first-first mold 410, and the outer diameter of the first-first punch 510 is set to the first diameter. It is formed to be equal to the inner diameter of the 1-1 molding hole 411. At the end of the first-first punch 510, a preliminary body portion protrusion 511 for forming the preliminary body portion hole 313 is formed.
이처럼, 제1-1금형(410) 내부에 모재(300)의 뒤쪽이 삽입되고 제1-1펀치(510)가 모재(300)를 타격하며 가압하는 방식으로 예비연결부(312) 및 예비홈(311)이 형성되는 제1연결부성형단계(S210)가 이루어지고, 제1연결부성형금형조립체(11)의 작동에 따른 제1연결부성형단계(S210)를 거치면서 도 5(b)에 도시된 제1-1성형물(310)이 성형된다.As such, the back of the base material 300 is inserted into the first-first mold 410 and the first-first punch 510 hits the base material 300 and pressurizes the preliminary connection part 312 and the preliminary groove ( A first connection part forming step 311 is formed, and the first connection part forming step S210 according to the operation of the first connection part mold assembly 11 is performed, and the first connection part forming step S210 shown in FIG. The 1-1 molding 310 is molded.
제2연결부성형단계(S220)에서, 제1-1성형물(310)은 제1-1금형(410) 속에서 인출되고 제1-2금형(420) 내부에 삽입된 후, 제1-2펀치(520)에 의하여 가압되면서 단조성형된다. 제1-2금형(420)은 제1-1성형물(310)의 직경과 동일한, 즉 컨택트팁(200)의 외경과 동일한 내경을 갖는 제1-2성형홀(421)과, 제1-2성형홀(421) 내측 단부에 연결부(220) 외경과 동일한 제1-2연결부성형홀(422)이 형성된다. In the second connection molding step (S220), the first-first molding 310 is drawn out of the first-first mold 410 and inserted into the first-second mold 420, and then the first-second punch Pressed by 520 is forged. The first-second mold 420 may include the first-second molding hole 421 having the same inner diameter as that of the first-first molding 310, that is, the same as the outer diameter of the contact tip 200, and the first-second mold 420. In the inner end of the forming hole 421, the first connection part forming hole 422 having the same diameter as the outer diameter of the connecting part 220 is formed.
제1-2연결부성형홀(422) 중앙에는 제1-2성형돌기(423)가 형성되고, 제1-2성형돌기(423)에 의하여 제1연결부홀(321)이 형성된다. 즉, 제1-2성형돌기(423)가 제1-1성형물(310)의 예비홈(311)에 밀착된 상태에서 가압되면서, 제1-1성형물(310)의 예비연결부(312) 부분은 제1-2연결부성형홀(422) 쪽으로 밀려들어오고, 제1연결부홀(321)이 형성된 제1연결부(322)가 성형된다. 이때, 제1-1성형물(310)의 예비연결부(312)는 제1-2연결부성형홀(422)의 직경과 같고 제1-2연결부성형홀(422)을 타고 (도 6(c)를 기준으로)아래쪽으로만 이동하게 되므로, (도 6(c)를 기준으로)제1-2성형돌기(423)를 좌우방향으로 가압하는 것이 아니라 수직방향으로만 가압하게 되고 제1-2성형돌기(423)에 측면방향 하중의 작용이 거의 발생하지 않게 되어 제1-2성형돌기(423)의 파손이 방지된다. 또한, 제1연결부홀(321)의 성형시 제1-1성형물(310)에 빈 공간이 없으므로 제1-1성형물(310)의 일부가 외력에 의하여 의도하지 않은 방향으로 소성변형되는 것이 방지된다. In the center of the 1-2 connecting portion forming hole 422, a 1-2 forming protrusion 423 is formed, and the first connecting hole 321 is formed by the 1-2 forming protrusion 423. That is, while the 1-2 molding protrusion 423 is pressed in a state of being in close contact with the preliminary groove 311 of the 1-1 molding 310, the preliminary connection portion 312 of the 1-1 molding 310 is The first connection part 322 is pushed toward the second connection part forming hole 422 and the first connection part hole 321 is formed. At this time, the preliminary connection part 312 of the 1-1 molding 310 is the same as the diameter of the 1-2 connection part molding hole 422 and rides the 1-2 connection part molding hole 422 (Fig. 6 (c)). Since only the downward movement (based on Fig. 6 (c)), the first molding protrusion 423 is not pressed in the left and right directions, but only in the vertical direction and the 1-2 molding protrusion is pressed. Since the action of the lateral load hardly occurs at 423, breakage of the 1-2 molding protrusion 423 is prevented. In addition, since there is no empty space in the first-first molded part 310 when the first connection hole 321 is molded, a part of the first-first molded part 310 is prevented from being plastically deformed in an unintended direction by an external force. .
제1-2성형돌기(423)의 직경은 후술할 마감핀(565)의 직경보다 크게 형성되며, 이에 따라 연결부홀(221)의 내경이 머리부홀(231)의 내경보다 크게 형성된다. 연결부홀(221)의 내경은 머리부홀(231)의 내경과 같은 크기로 형성될 필요가 없기 때문에, 연결부홀(221)의 직경을 결정짓는 제1-2성형돌기(423)(제2-1돌기(432), 제2-2돌기(442) 포함)의 직경을 보다 크게 함으로써 제1-2성형돌기(423)의 강성을 보장할 수 있으며, 제조공정에서 제1-2성형돌기(423)가 파손되는 것을 방지할 수 있다. 이는, 후술할 제2-1돌기(432), 제2-2돌기(442)의 경우에도 마찬가지이다.The diameter of the second molding protrusion 423 is greater than the diameter of the finishing pin 565, which will be described later, so that the inner diameter of the connection hole 221 is formed larger than the inner diameter of the head hole 231. Since the inner diameter of the connection hole 221 does not need to be formed to be the same size as the inner diameter of the head hole 231, the 1-2 forming protrusions 423 for determining the diameter of the connection hole 221 (2-1) By increasing the diameters of the protrusions 432 and the second-2 protrusions 442, the rigidity of the 1-2 molding protrusions 423 can be ensured, and the 1-2 molding protrusions 423 in the manufacturing process. Can be prevented from being broken. This is the same also in the case of the 2-1 protrusion 432 and the 2-2 protrusion 442 which are mentioned later.
또한, 제1-2성형돌기(423)은 완전한 원기둥 형태로 형성되어야 하는 것은 아니고, 제1연결부홀(321)의 성형이 이루어지도록 하는 범위 내에서, 상단 부분이 약간 테이퍼지게 형성될 수 있고, 전체적으로 약간 테이퍼진 형태로 이루어질 수도 있다. 이는, 후술할 제2-1돌기(432), 제2-2돌기(442)의 경우에도 마찬가지이다.In addition, the first-second molding protrusion 423 is not to be formed in a completely cylindrical shape, the upper portion may be formed to be slightly tapered in a range to be formed of the first connection hole 321, It may also be made slightly tapered as a whole. This is the same also in the case of the 2-1 protrusion 432 and the 2-2 protrusion 442 which are mentioned later.
제1-2금형(420)과의 상호작용으로 제1성형물(320)을 단조성형하기 위하여 제1-2펀치(520)가 마련되며, 제1-2펀치(520)의 외경은 제1-2성형홀(421)의 내경과 같도록 형성된다. 제1-2펀치(520)의 단부에도 제1-1펀치(510)와 같이, 제1예비몸통부홀(323) 형성을 위한 제1-2예비몸통부돌기(521)가 형성될 수 있다.A 1-2 punch 520 is provided to forge the first molding 320 by interacting with the 1-2 mold 420, and the outer diameter of the 1-2 punch 520 is defined as 1- 1. It is formed to be equal to the inner diameter of the two forming holes 421. Like the first-first punch 510, the first-second preliminary body protrusion 521 for forming the first preliminary body hole 323 may be formed at the end of the first-second punch 520.
이처럼, 제1-2금형(420) 내부에 제1-1성형물(310)의 뒤쪽이 삽입되고 제1-2펀치(520)가 제1-1성형물(310)을 타격하며 가압하는 방식으로 제2연결부성형단계(S220)가 이루어지고, 제2연결부성형금형조립체(12)의 작동에 의한 제2연결부성형단계(S220)를 거치면서 도 5(c)에 도시된 제1성형물(320)이 성형된다.As such, the rear side of the first-first molding 310 is inserted into the first-second mold 420 and the first-second punch 520 strikes and pressurizes the first-first molding 310. The second connection molding step (S220) is made, the first molding part 320 shown in FIG. 5 (c) is subjected to the second connection molding step (S220) by the operation of the second connection molding mold assembly 12 Molded.
한편, 본 발명의 바람직한 실시예에 따르면, 제1-2펀치(520)가 제1-2금형(420) 내부의 제1-1성형물(310)의 타격시, 제1-2금형(420)은 뒤쪽(도 6(c)에서 아래쪽)으로 슬라이딩 이동하면서 성형이 이루어질 수 있다. 슬라이딩 후에는 본래의 상태로 회복될 수 있도록 탄성수단이 개재된다. 이와 같은, 제1-2금형(420)의 슬라이딩은, 제1-2성형돌기(423)가 예비연결부(312)에 접촉하는 순간 무리한 하중이 가해지는 것을 방지하며, 제1-2성형돌기(423)가 예비연결부(312)에 가하는 하중을 슬라이딩 과정 전체에 분산시킬 수 있으므로, 제1-2성형돌기(423)의 파손을 방지할 수 있다.Meanwhile, according to a preferred embodiment of the present invention, when the 1-2 punch 520 strikes the 1-1 molding 310 inside the 1-2 mold 420, the 1-2 mold 420 The molding can be made while sliding to the rear (below in Figure 6 (c)). After sliding, the elastic means is interposed so that it can be restored to its original state. As described above, the sliding of the 1-2 mold 420 prevents an excessive load from being applied at the moment when the 1-2 molding protrusion 423 contacts the preliminary connection portion 312, and the 1-2 molding protrusion ( Since the load applied to the preliminary connecting portion 312 may be distributed throughout the sliding process, the breakage of the 1-2 molding protrusion 423 may be prevented.
연결부성형단계(S200)가 완료 후 몸통부홀성형단계(S300)가 이루어지고, 제1성형물(320) 중앙(제1성형물(320)의 횡단면상 중앙부분)을 가압하면서 제2몸통부홀(343)이 형성된다.After the connection part forming step S200 is completed, the body part hole forming step S300 is performed, and the second body part hole 343 is pressed while pressing the center of the first molding part 320 (the central part on the cross section of the first molding part 320). Is formed.
또한, 앞서 언급한 바와 같이, 몸통부홀성형단계(S300)는 몸통부홀성형금형조립체(20)의 사용에 따라 이루어진다. 이 몸통부홀성형금형조립체(20)는 제1몸통부홀성형금형조립체(21)와 제2몸통부홀성형금형조립체(22)로 구분되고, 제1몸통부홀성형금형조립체(21)는 제2-1금형(430)과 제2-1펀치(530)를 포함하며, 제2몸통부홀성형금형조립체(22)는 제2-2금형(440)과 제2-2펀치(540)를 포함한다.In addition, as mentioned above, the trunk hole molding step (S300) is made according to the use of the trunk hole molding mold assembly (20). The body hole molding mold assembly 20 is divided into a first body body hole molding mold assembly 21 and a second body body hole molding mold assembly 22, and the first body body hole molding mold assembly 21 is a 2-1. The mold 430 and the 2-1 punch 530, the second body hole molding mold assembly 22 includes a 2-2 mold 440 and the 2-2 punch (540).
제2몸통부홀(343)의 성형이 완료된 형태가 도 5(e)에 도시된다. 몸통부홀성형단계(S300)는, 제1몸통부홀성형금형조립체(21)의 작동에 따른 제1몸통부홀성형단계(S310)와, 제2몸통부홀성형금형조립체(22)의 작동에 따른 제2몸통부홀성형단계(S320)로 구분되어 이루어지는 것이 바람직하다.The shape in which the molding of the second body portion hole 343 is completed is shown in FIG. Body hole molding step (S300), the first body hole molding step (S310) according to the operation of the first body hole molding mold assembly 21, the second body according to the operation of the second body hole molding mold assembly (22) It is preferable that the body is divided into hole forming step (S320).
제1몸통부홀성형단계(S310)에서, 제1성형물(320)은 제1-2금형(420) 속에서 인출되고 제2-1금형(430) 내부에 삽입된 후, 제2-1펀치(530)에 의하여 가압되면서 단조성형된다. 제2-1금형(430)은 제1성형물(320)의 직경과 동일한, 즉 컨택트팁(200)의 외경과 동일한 내경을 갖고 하단에 제1-2연결부성형홀(422) 및 제1-2성형돌기(423)와 유사한 형태의 제2-1홀(431) 및 제2-1돌기(432)가 형성된다. 제2-1홀(431)은 제1-2연결부성형홀(422)의 길이와 동일하게 이루어지는 것이 바람직하며, 제2-1돌기(432)는 제1-2성형돌기(423)보다 약간 길게 이루어지는 것이 바람직하다. 이러한 제2-1홀(431) 및 제2-1돌기(432)는 제1연결부(322)의 외경 및 길이는 유지시키되 제1연결부홀(321)의 길이는 연장되도록 하며, 결국 몸통부홀(211)의 성형과 더불어, 연결부홀(221)이 여러 단계를 거쳐 순차적으로 성형되도록 하며, 하중의 분산이 이루어지게 한다.In the first body hole molding step (S310), the first molding part 320 is drawn out from the first-second mold 420 and inserted into the second-first mold 430, and then the second-first punch ( It is forged while being pressed by the 530. The second-first mold 430 has an inner diameter that is the same as the diameter of the first molded part 320, that is, the outer diameter of the contact tip 200, and the first-second connection part forming hole 422 and the first-second at the bottom thereof. 2-1 holes 431 and 2-1 protrusions 432 similar to the forming protrusions 423 are formed. The 2-1 hole 431 is preferably made to be the same as the length of the 1-2 connection portion forming hole 422, the 2-1 projection 432 is slightly longer than the 1-2 molding protrusion 423 It is preferable to make. The 2-1 hole 431 and the 2-1 protrusion 432 to maintain the outer diameter and length of the first connector 322, but the length of the first connector hole 321 is extended, and eventually the body hole ( In addition to the molding of 211, the connection hole 221 is to be sequentially formed through a number of steps, and to distribute the load.
제2-1금형(430)과의 상호작용으로 제2-1성형물(330)을 단조성형하기 위하여 제2-1펀치(530)가 마련되며, 제2-1펀치(530)의 외경은 몸통부홀(211)의 내경과 같도록 형성된다. 제2-1펀치(530)는 제1성형물(320)을 앞쪽을 파고들며 중간 정도까지 진입한다.The 2-1 punch 530 is provided to forge the 2-1 molding 330 by interaction with the 2-1 mold 430, and the outer diameter of the 2-1 punch 530 is the body. It is formed to be equal to the inner diameter of the subhole 211. The 2-1 punch 530 penetrates the first molded part 320 and enters to the middle.
제2-1펀치(530)의 직경은 제1-2성형돌기(423) 및 후술할 마감핀(565)의 직경보다 크게 형성되며, 이에 따라 제2-1몸통부홀(333)의 내경이 연결부홀(221) 및 머리부홀(231)의 내경보다 크게 형성된다. 제2-1몸통부홀(333)을 포함하여 몸통부홀(211)의 내경은 머리부홀(231)의 내경과 같은 크기로 형성될 필요가 없기 때문에, 몸통부홀(211)의 직경을 결정짓는 제2-1펀치(530)의 직경을 보다 크게 함으로써 제2-1펀치(530)의 강성을 보장할 수 있으며, 제조공정에서 제2-1펀치(530)가 파손되는 것을 방지할 수 있다. 이는, 후술할 제2-2펀치(540)의 경우에도 마찬가지이다.The diameter of the 2-1 punch 530 is formed larger than the diameter of the 1-2 molding protrusion 423 and the finishing pin 565 to be described later, the inner diameter of the 2-1 body portion hole 333 is connected It is formed larger than the inner diameter of the hole 221 and the head hole 231. Since the inner diameter of the trunk hole 211 including the 2-1 trunk hole 333 does not need to be formed to have the same size as the inner diameter of the head hole 231, the second hole determines the diameter of the trunk hole 211. By increasing the diameter of the -1 punch 530, it is possible to ensure the rigidity of the 2-1 punch 530, it is possible to prevent the 2-1 punch 530 from being damaged in the manufacturing process. This is the same also in the case of the second-2 punch 540 to be described later.
이처럼, 제2-1금형(430) 내부에 제1성형물(320)의 뒤쪽이 삽입되고 제2-1펀치(530)가 제1성형물(320)의 중앙을 타격하며 가압하는 방식으로 제1몸통부홀성형단계(S310)가 이루어지고, 제1몸통부홀성형금형조립체(21)의 작동에 의한 제1몸통부홀성형단계(S310)를 거치면서 도 5(d)에 도시된 제2-1성형물(330)이 성형된다.As such, the first body 320 is inserted into the second mold 430 and the second body punch 530 hits the center of the first molding 320 to press the first body. The sub-hole molding step (S310) is made, the first body portion hole molding step (S310) by the operation of the first body portion hole molding mold assembly 21, the 2-1 molding shown in Figure 5 (d) ( 330 is molded.
제2몸통부홀성형단계(S320)에서, 제2-1성형물(330)은 제2-1금형(430) 속에서 인출되고 제2-2금형(440) 내부에 삽입된 후, 제2-2펀치(540)에 의하여 가압되면서 단조성형된다. 제2-2금형(440)은 제2-1성형물(330)의 직경과 동일한, 즉 컨택트팁(200)의 외경과 동일한 내경을 갖고 하단에 제1-2연결부성형홀(422) 및 제1-2성형돌기(423)와 유사한 형태의 제2-2홀(441) 및 제2-2돌기(442)가 형성된다. 제2-2홀(441)은 제1-2연결부성형홀(422)의 길이와 동일하게 이루어지는 것이 바람직하며, 제2-2돌기(442)는 제1-2성형돌기(423) 및 제2-1돌기(432) 보다 약간 길게 이루어지는 것이 바람직하다. 이러한 제2-2홀(441) 및 제2-2돌기(442)는 제2-1연결부(332)의 외경 및 길이는 유지시키되 제2-1연결부홀(331)의 길이는 연장되도록 하고 있으며, 결국 제2몸통부홀(343)의 성형과 더불어 연결부홀(221)이 각 단계를 거쳐 순차적으로 성형되도록 한다. 즉, 제2연결부성형단계(S220), 제1몸통부홀성형단계(S310) 및 제2몸통부홀성형단계(S320)를 거쳐 제2연결부홀(341)이 성형되므로 성형 과정에서 무리한 하중의 작용을 방지하고 결과적으로 하중을 분산시키게 되어 자연스러운 성형을 유도하고, 성형부품 및 재료의 파손 내지는 손상을 방지할 수 있게 된다.In the second body hole molding step (S320), the 2-1 molding 330 is drawn out of the 2-1 mold 430 and inserted into the 2-2 mold 440, and then the 2-2 It is forged while being pressed by the punch 540. The second-two mold 440 has an inner diameter that is the same as the diameter of the second-first molding 330, that is, the outer diameter of the contact tip 200, and the second-second mold forming hole 422 and the first at the bottom thereof. A second-2 hole 441 and a second-2 protrusion 442 similar to the −2 molding protrusion 423 are formed. It is preferable that the second-2 hole 441 is made to have the same length as the 1-2 connection part forming hole 422, and the second-2 protrusion 442 includes the first-2 forming protrusion 423 and the second. It is preferably made slightly longer than the -1 protrusion 432. The 2-2 holes 441 and the 2-2 protrusions 442 maintain the outer diameter and the length of the 2-1 connecting portion 332, but the length of the 2-1 connecting portion hole 331 is extended. In the end, together with the molding of the second body portion hole 343, the connection portion hole 221 is sequentially formed through each step. That is, since the second connection hole 341 is formed through the second connection part forming step S220, the first body hole forming step S310, and the second body hole forming step S320, an excessive force is applied during the molding process. And as a result distribute the load, leading to natural forming and preventing breakage or damage of the molded part and material.
제2-2금형(440)과의 상호작용으로 제2성형물(340)을 단조성형하기 위하여 제2-2펀치(540)가 마련되며, 제2-2펀치(540)의 외경은 몸통부홀(211)의 내경과 같도록 형성된다. 제2-2펀치(540)는 제2-1성형물(330)을 더욱 파고들며 제2-1몸통부홀(333)을 연장시켜 제2-2돌기(442)에 근접한 곳까지 진입하고 제2몸통부홀(343)을 성형하도록 한다. In order to forge the second molding 340 by the interaction with the second-2 mold 440, the second-2 punch 540 is provided, and the outer diameter of the second-2 punch 540 is a body hole ( It is formed to be equal to the inner diameter of 211). The 2-2 punch 540 further penetrates the 2-1 molding 330 and extends the 2-1 body portion hole 333 to enter a position close to the 2-2 protrusion 442 and the second body. The subhole 343 is molded.
제2-2금형(440) 내부에 제2-1성형물(330) 뒤쪽이 삽입되고 제2-2펀치(540)가 제2-1성형물(330)의 중앙을 타격하며 가압하는 방식으로 제2몸통부홀성형단계(S320)가 이루어지고, 제2몸통부홀성형금형조립체(22)의 작동에 의한 제2몸통부홀성형단계(S320)를 거치면서 도 5(e)에 도시된 제2성형물(340)이 성형된다.The second second molding 330 is inserted into the inside of the second-2 mold 440 and the second-2 punch 540 hits the center of the second first molding 330 to press the second type. The body part forming step (S320) is made, the second body hole forming step (S320) by the operation of the second body part hole molding mold 22, the second molding (340) shown in Figure 5 (e) ) Is molded.
상술한 바와 같이, 본 발명에서는 몸통부홀성형단계(S300)를, 제1몸통부홀성형단계(S310)와 제2몸통부홀성형단계(S320)로 구분하여, 두 번의 공정에 걸쳐 몸통부홀(211)이 형성되도록 하여 하중의 집중을 방지하고 자연스러운 성형이 이루어지도록 하고 있다.As described above, in the present invention, the body hole forming step (S300) is divided into the first body hole forming step (S310) and the second body hole forming step (S320), the body portion hole 211 through two processes This is to prevent the concentration of the load and to form a natural molding.
몸통부홀성형단계(S300)가 완료후 연통단계(S400)가 이루어지며, 제2성형물(340) 중앙(제2성형물(340)의 횡단면상 중앙부분)을 가압하면서 제2연결부홀(341)과 제2몸통부홀(343)이 연통되도록 형성된다. 연통단계(S400)를 통하여 결국, 제1연결부홀(321)과 제2몸통부홀(343)이 연통되는 공정이 이루어진다. After the body hole forming step S300 is completed, a communication step S400 is performed, and while pressing the center of the second molding 340 (the central part on the cross section of the second molding 340), the second connection hole 341 is formed. The second body portion hole 343 is formed to communicate with each other. Eventually, the first connecting part hole 321 and the second body part hole 343 communicate with each other through the communication step S400.
또한, 앞서 언급한 바와 같이, 연통단계(S400)는 연통금형조립체(30)의 사용에 따라 이루어진다. 연통금형조립체(30)는 제3금형(450)과 제3성형하우징(550)을 포함한다.In addition, as mentioned above, the communication step (S400) is made according to the use of the communication mold assembly 30. The communication mold assembly 30 includes a third mold 450 and a third molding housing 550.
연통단계(S400)가 완료된 형태가 도 5(f)에 도시된다. 연통단계(S400)에서는, 제2성형물(340)이 이전의 공정과 달리 뒤집어진 상태로 제3금형(450)에 삽입되는데, 이는 제2연결부홀(341)과 몸통부홀(211) 사이의 재료부분이 용이하게 제거될 수 있도록 하기 위함이다.The form in which the communication step S400 is completed is shown in FIG. 5 (f). In the communication step (S400), the second molding 340 is inserted into the third mold 450 in an inverted state unlike the previous process, which is a material between the second connection hole 341 and the body hole 211 This is to allow the part to be easily removed.
연통단계(S400)에서, 제2성형물(340)은 제2-2금형(440)속에서 인출되고 제3금형(450) 내부에 삽입된 후, 제3펀치(451)에 의하여 가압되면서 단조성형된다. 제3금형(450)은 제2성형물(340)의 직경과 동일한, 즉 컨택트팁(200)의 외경과 동일한 내경을 갖고 (도 6(f)를 기준으로) 하측에서 상측으로 제3펀치(451)가 슬라이딩될 수 있도록 형성된다. 제3금형(450)은 도 9(f)에 도시된 바와 같이 고정된 형태로 형성될 수 있고, 도 10(f)에 도시된 바와 같이, 슬라이딩 가능하게 이루어질 수 있다. 후자의 경우(제3금형(450)이 슬라이딩 되는 경우) 제3금형이 후방으로 슬라이딩되면서 내부에 위치하는 제3펀치(451)가 상대적으로 전방으로 슬라이딩 이동하게 된다. 제3펀치(451)는 제2성형물(340)에서 제2연결부홀(341)과 제2몸통부홀(343) 사이의 재료를 가압하면서 제거하도록 하는 수단이며, 이에 따라 앞쪽 부분은 제2연결부홀(341)의 직경과 같고 뒤쪽부분(도 6(f)에서 아래쪽)은 제2몸통부홀(343)의 직경과 같도록 형성된다. 제3펀치(451)의 앞쪽과 뒤쪽을 연결하는 부분은 완만한 경사를 가지며 테이퍼진 형태로 이루어진다.In the communicating step (S400), the second molding 340 is drawn out in the second-second mold 440 and inserted into the third mold 450, and then pressurized by the third punch 451 to forge the mold. do. The third mold 450 has an inner diameter that is the same as the diameter of the second molding 340, that is, the outer diameter of the contact tip 200, and the third punch 451 from the lower side to the upper side. ) Is formed to be able to slide. The third mold 450 may be formed in a fixed shape as shown in FIG. 9 (f), and may be slidable as shown in FIG. 10 (f). In the latter case (when the third mold 450 is slid), as the third mold is slid backwards, the third punch 451 located therein is relatively slidably moved forward. The third punch 451 is a means for pressing and removing the material between the second connection hole 341 and the second body hole 343 in the second molding 340, so that the front portion is the second connection hole It is equal to the diameter of 341 and the rear portion (downward in Fig. 6 (f)) is formed to be equal to the diameter of the second body portion hole (343). The portion connecting the front and rear of the third punch 451 has a gentle inclination and is tapered.
제3금형(450)과의 상호작용으로 제2성형물(340)을 단조성형하기 위하여 제3성형하우징(550)이 마련되며, 제3성형하우징(550)은 제2연결부(342)가 내부로 삽입되면서 제2성형물(340)의 몸통부(210) 부분을 지지할 수 있도록 형성된다. 제3성형하우징(550) 내부에는 배출구(552)가 형성되고, 이러한 배출구(552)를 통하여, 제3펀치(451)를 통하여 제거된 부분(제2연결부홀(341)과 제2몸통부홀(343) 사이의 재료 부분)이 배출된다.A third molding housing 550 is provided to forge the second molding 340 by interaction with the third mold 450, and the third molding housing 550 has a second connection part 342 inward. It is formed to support the body portion 210 of the second molding 340 while being inserted. A discharge port 552 is formed in the third molding housing 550, and a portion removed through the third punch 451 through the discharge port 552 (the second connection hole 341 and the second body hole ( Part 343) is discharged.
이처럼, 제3금형(450) 내부에 제2성형물(340) 앞쪽이 삽입되고 제3펀치(451)가 제2성형물(340)의 중앙을 타격하며 가압하는 방식으로 몸통부홀(211)과 연결부홀(221)이 연통되는 연통단계(S400)가 이루어지고, 연통금형조립체(30)의 작동에 의한 연통단계(S400)를 거치면서 도 5(f)에 도시된 제3성형물(350)이 성형된다.As such, the front of the second molding 340 is inserted into the third mold 450 and the third punch 451 presses against the center of the second molding 340 and presses the body hole 211 and the connection hole. A communication step (S400) of the communication 221 is made, and the third molding member 350 shown in FIG. 5 (f) is formed while the communication step (S400) by the operation of the communication mold assembly 30 is formed. .
이하에서는 도 11a 내지 도 11c를 참조하여 연통금형조립체(30)를 좀더 구체적으로 설명한다.Hereinafter, the communication mold assembly 30 will be described in more detail with reference to FIGS. 11A to 11C.
본 발명에 따른 연통금형조립체(30)는, 제3금형(450), 제3성형하우징(550), 제3펀치(451), 제3탄성체(452), 탄성체안착부(453), 제3슬리브(454), 제3인출로드(455), 제3전방케이스(456) 및 제3후방케이스(457)를 포함한다.The communication mold assembly 30 according to the present invention includes a third mold 450, a third molding housing 550, a third punch 451, a third elastic body 452, an elastic seating portion 453, and a third The sleeve 454, the third lead-out rod 455, the third front case 456 and the third rear case 457 are included.
제3전방케이스(456) 및 제3후방케이스(457)가 전체적인 외형을 이루며, 제3성형하우징(550)을 제외한 다른 구성은 상기 제3전방케이스(456)와 제3후방케이스(457)가 이루는 공간 내부에 위치한다. 제3전방케이스(456)와 제3후방케이스(457)는 그 자체로 서로 결합되는 것은 아니고, 연통금형조립체(30)가 조립된 형태로 용접토치용 컨택트팁 제조장치에 고정되어 사용된다.The third front case 456 and the third rear case 457 form an overall appearance, except for the third molding housing 550, the third front case 456 and the third rear case 457 are It is located inside the space. The third front case 456 and the third rear case 457 are not coupled to each other by themselves, it is used to be fixed to the contact tip manufacturing apparatus for welding torch in the form in which the communication mold assembly 30 is assembled.
제3전방케이스(456)는 전단부에 걸림턱(456a)이 형성되어 제3금형(450)이 제3전방케이스(456) 앞쪽으로 이탈되는 것을 방지한다. 걸림턱(456a)를 제외하고 제3전방케이스(456)는 전체적으로 원통형으로 이루어진다.The third front case 456 is provided with a locking step 456a at the front end portion to prevent the third mold 450 from being separated toward the front of the third front case 456. Except for the locking step 456a, the third front case 456 is formed in a cylindrical shape as a whole.
제3전방케이스(456) 뒤쪽으로 제3후방케이스(457)가 밀착되어 형성된다. The third rear case 457 is formed in close contact with the rear of the third front case 456.
제3전방케이스(456) 앞쪽으로 돌출되어 2중의 원통형상으로 이루어진 탄성체안착부(453)가 형성된다. 탄성체안착부(453)는 내부에 제3탄성체(452) 후단이 안착되며, 제3탄성체(452)가 이격없이 탄성변형 되도록 한다. 그리고 탄성체안착부(453)의 내주면은 제3슬리브(454)의 후단이 밀착되도록 이루어지며, 제3슬리브(454)가 이격없이 전후방향으로 슬라이딩되도록 돕는다.Protruding toward the front of the third front case 456 is formed an elastic seat portion 453 consisting of a double cylindrical shape. The elastic seating portion 453 has a rear end of the third elastic body 452 mounted therein, and allows the third elastic body 452 to elastically deform without being spaced apart. And the inner peripheral surface of the elastic seating portion 453 is made so that the rear end of the third sleeve 454 is in close contact, and helps the third sleeve 454 to slide in the front-rear direction without being spaced apart.
제3금형(450)의 외측면은 제3전방케이스(456)의 내측면에 밀착되어 전후방향으로 슬라이딩 가능하게 이루어진다. 그리고 제3금형(450) 내부에는 제3삽입홀(450a)이 형성되고, 제3삽입홀(450a)의 내경은 제2성형물(340)의 제2몸통부(344)의 외경과 동일한 직경으로 이루어진다. 제3삽입홀(450a)에서 제3성형하우징(550) 쪽으로는 제2성형물(340)이 위치하고, 반대쪽으로는 제3펀치(451) 및 제3슬리브(454)의 단부가 삽입된 형태로 위치한다.The outer surface of the third mold 450 is in close contact with the inner surface of the third front case 456 to be slidable in the front-rear direction. A third insertion hole 450a is formed in the third mold 450, and the inner diameter of the third insertion hole 450a is the same diameter as the outer diameter of the second body 344 of the second molding 340. Is done. The second molding 340 is positioned toward the third molding housing 550 in the third insertion hole 450a, and the ends of the third punch 451 and the third sleeve 454 are inserted to the opposite sides. do.
제3성형하우징(550)은 제2성형물(340)의 제2머리부(342)쪽이 삽입될 수 있도록 형성되는데, 제3금형(450)과 마주하는 쪽, 즉 제2성형물(340)이 삽입되는 쪽 내부는 컨택트팁의 연결부에 대응되는 형태로 이루어지고, 내부에 배출구(552)가 형성되어 제3펀치(451)에 의해 제거되는 제2몸통부(344)와 제2연결부(342) 사이의 재료가 배출된다.The third molding housing 550 is formed so that the second head 342 side of the second molding 340 may be inserted, and the side facing the third mold 450, that is, the second molding 340 is formed. The inside of the inserted side is formed in a form corresponding to the contact portion of the contact tip, the outlet 552 is formed therein is removed by the third punch 451 and the second body portion 344 and the second connection portion 342 The material between is discharged.
제3금형(450) 내측으로, 구체적으로 제3슬리브(454) 내측으로, 제3삽입홀(450a) 중앙선상에 위치하고 전단부가 제2몸통부홀(343) 쪽에서 제2성형물(340) 내부로 삽입되는 제3펀치(451)가 형성된다. 제3펀치(451)의 후단은 제3후방케이스(457)에 의해 지지된다. 제3펀치(451)의 전단부 직경은 제2연결부홀(341)의 내경과 동일하게 이루어지고, 중간부분 직경은 제2몸통부홀(343)의 내경과 동일하게 이루어지며, 제2몸통부홀(343)에서 제2연결부홀(341) 쪽으로 이동(상대적인 이동)하며 단조 성형시 제2성형물(340)의 제2연결부홀(341) 및 제2몸통부홀(343)의 변형이 없도록 지지한다.The inside of the third mold 450, specifically, inside the third sleeve 454, is positioned on the center line of the third insertion hole 450a, and the front end is inserted into the second molding 340 from the side of the second body hole 343. A third punch 451 is formed. The rear end of the third punch 451 is supported by the third rear case 457. The diameter of the front end portion of the third punch 451 is made the same as the inner diameter of the second connection hole 341, the diameter of the middle portion is made the same as the inner diameter of the second body hole 343, the second body hole ( In 343, the second connector hole 341 moves toward the second connector hole 341 and is supported so that there is no deformation of the second connector hole 341 and the second body hole 343 of the second molding 340 during forging.
제3슬리브(454)는 탄성체안착부(453)와 제3펀치(451)가 이루는 공간상에 위치한다. 제3슬리브(454)의 후단은 직경이 확장되어 플랜지 형태로 이루어진다. 제3슬리브(454)의 전단부는 제3삽입홀(450a)에 삽입되며, 제2성형물(340) 후단과 마주한다. 제3슬리브(454)에서 제3삽입홀(450a)에 삽입된 부분은, 그 외경이 제3삽입홀(450a)의 내경과 동일하게 이루어지고, 그 내경은 제3펀치(451)의 중앙부분 외경과 동일하게 이루어진다.The third sleeve 454 is positioned on a space formed by the elastic seating portion 453 and the third punch 451. The rear end of the third sleeve 454 is expanded in diameter to form a flange. The front end of the third sleeve 454 is inserted into the third insertion hole 450a and faces the rear end of the second molding 340. The portion of the third sleeve 454 inserted into the third insertion hole 450a has the same outer diameter as the inner diameter of the third insertion hole 450a, and the inner diameter of the third sleeve 454 is the central portion of the third punch 451. It is made the same as the outer diameter.
제3슬리브(454) 뒤쪽으로는 제3인출로드(455)가 형성되는데, 제3인출로드(455)는 제3슬리브(454)를 제3성형하우징(550) 쪽으로 밀며 제3성형물(350)(제2성형물(340)의 소성변형이 이루어진 후)이 제3금형(450) 외부로 인출되도록 한다. 이를 위하여, 제3인출로드(455)는 제3후방케이스(457)를 관통하며 슬라이드 이동 가능하게 결합된다. A third drawing rod 455 is formed behind the third sleeve 454, and the third drawing rod 455 pushes the third sleeve 454 toward the third molding housing 550 to form the third molding 350. (After the plastic deformation of the second molding 340 is made), the third mold 450 is drawn out. To this end, the third lead rod 455 is coupled to the slide through the third rear case 457.
도 11b에 도시된 바와 같이, 제2성형물(340)이 제3삽입홀(450a) 내부에 삽입되면서 제2성형물(340)의 단조가공 준비가 이루어진다.As shown in FIG. 11B, the second molding 340 is inserted into the third insertion hole 450a to prepare forging of the second molding 340.
이 상태에서 제3성형하우징(550)은 제3금형(450)쪽으로 접근하며, 제3금형(450)을 뒤쪽으로 가압한다. 이때, 제3성형하우징(550)과 제3금형(450)은 제2성형물(340)을 완전히 둘러싸며 제2성형물(340)의 외부 모든 면을 지지한다. In this state, the third molding housing 550 approaches the third mold 450 and presses the third mold 450 backward. In this case, the third molding housing 550 and the third mold 450 completely surround the second molding 340 and support all external surfaces of the second molding 340.
제3성형하우징(550)이 더욱 전진하면, 제3금형(450)은 제3탄성체(452)를 가압하면서 뒤쪽으로 밀리고 도 11c 위치까지 이동한다. 이 과정에서 제3펀치(451)의 앞쪽 단부는 제2성형물(340) 중앙 부분을 뚫고 제2연결부홀(341) 내부로 삽입되고 이에 따라 제거된 부분은 배출구(552)를 통하여 외부로 배출된다.As the third molding housing 550 is further advanced, the third mold 450 is pushed backward while pressing the third elastic body 452 and moves to the position of FIG. 11C. In this process, the front end of the third punch 451 is inserted into the second connector hole 341 through the central portion of the second molding 340, and thus the removed portion is discharged to the outside through the outlet 552. .
성형이 완료되면 제3성형하우징(550)은 다시 뒤쪽으로 이동한다.When the molding is completed, the third molding housing 550 moves back.
이후, 제3인출로드(455)는 제3슬리브(454)를 밀고, 제3슬리브(454)는 제2성형물(340)이 변형된 제3성형물(350)을 인출한다.Thereafter, the third drawing rod 455 pushes the third sleeve 454, and the third sleeve 454 pulls out the third molding 350 in which the second molding 340 is deformed.
이처럼, 본 발명에서는 제2성형물(340)이 제3삽입홀(450a) 내부에서 안착되고 모든 면이 지지된 상태에서 제3성형하우징(550)에 의해 가압되면서 성형이 이루어지므로 제2성형물(340)의 이격 없이 성형이 이루어지고, 제3금형(450)이 슬라이딩되면서 성형이 이루어져 제3성형하우징(550)의 크기 제한을 해소할 수 있고 안정된 작동이 이루어진다. 제3금형(450)이 슬라이딩 되지 않는 경우라면, 즉 도 9(f)에 도시된 형태와 같다면, 제3성형하우징(550)의 전단부는 제3삽입홀(450a) 내부에 삽입될 정도로 직경이 작아야 하고, 이러한 경우에는 제3성형하우징(550)의 크기 제한이 따르는 문제점이 발생하게 된다.As such, in the present invention, the second molding 340 is seated inside the third insertion hole 450a and is molded while being pressed by the third molding housing 550 in a state in which all surfaces are supported. Molding is made without being spaced apart, and the molding is made while the third mold 450 is slid, thereby eliminating the size limitation of the third molding housing 550 and making stable operation. If the third mold 450 is not sliding, that is, as shown in FIG. 9 (f), the front end of the third molding housing 550 has a diameter enough to be inserted into the third insertion hole 450a. Should be small, and in this case, a problem arises in accordance with the size limitation of the third molding housing 550.
연통단계(S400)가 완료 후 머리부성형단계(S500)가 이루어지며, 제3성형물(350) 앞쪽을 가압하면서 머리부(230)가 성형 되도록 한다. 또한, 앞서 언급한 바와 같이, 머리부성형단계(S500)는 머리부성형금형조립체(40)의 사용에 따라 이루어진다. 머리부성형금형조립체(40)는 제4금형(460)과 제4성형하우징(560)을 포함한다. 이와 달리, 머리부성형금형조립체(40)는 제4-1금형(460')과 제4-1성형하우징(560')을 포함하는 형태로 이루어질 수 있으며, 이러한 형태는 후술하기로 한다. 머리부성형단계(S500)가 완료된 형태가 도 5(g)에 도시된다. After the communication step (S400) is completed, the head molding step (S500) is made, the head 230 is molded while pressing the front of the third molding (350). In addition, as mentioned above, the head shaping step (S500) is made according to the use of the head molding mold assembly (40). The head mold assembly 40 includes a fourth mold 460 and a fourth molding housing 560. Alternatively, the head mold assembly 40 may be formed in a form including a 4-1 mold 460 'and a 4-1 molding housing 560', which will be described later. The form in which the head forming step S500 is completed is shown in FIG. 5 (g).
머리부성형단계(S500)에서, 제3성형물(350)은 제3금형(450)속에서 인출되고 제4금형(460) 내부에 삽입된 후, 제4성형하우징(560)에 의하여 가압되면서 단조성형된다. 제4금형(460)은 제3성형물(350)의 직경과 동일한, 즉 컨택트팁(200)의 몸통부(210) 외경과 동일한 내경을 갖고 하단에 제2-2홀(441) 및 제2-2돌기(442)와 유사한 형태의 제4홀(461) 및 제4돌기(462)가 형성된다. 제4홀(461)은 제2-2홀(441)의 길이보다 약간 길게 이루어지는 것이 바람직하며, 제4돌기(462)는 하단 직경이 확장되고 길이가 제2-2돌기(442)보다 긴 형태로 형성된다. 이에 따라 입구쪽이 상대적으로 넓은 제4연결부홀(361)이 성형되면서 안정된 지지가 이루어진다.In the head molding step S500, the third molding 350 is drawn out from the third mold 450 and inserted into the fourth mold 460, and then pressurized by the fourth molding housing 560. Molded. The fourth mold 460 has an inner diameter that is the same as that of the third molding 350, that is, the outer diameter of the body portion 210 of the contact tip 200, and has the second through second holes 441 and the second through the bottom thereof. The fourth hole 461 and the fourth protrusion 462 similar to the second protrusion 442 are formed. The fourth hole 461 is preferably formed to be slightly longer than the length of the second-2 hole 441, the fourth protrusion 462 has a lower end diameter and a longer length than the second-2 protrusion 442 Is formed. As a result, the fourth connector hole 361 having a relatively wide inlet is formed and stable support is achieved.
제4금형(460)과의 상호작용으로 제3성형물(350)을 단조성형하기 위하여 제4성형하우징(560)이 마련되며, 제4성형하우징(560)은 제3성형물(350)의 앞쪽이 삽입될 수 있도록 형성되며 내부 형상이 머리부(230)에 대응되도록 형성된다. 제4성형하우징(560)의 입구는 제3성형물(350)의 외경과 동일하고, 머리부(230) 형태와 같이 점차 완만한 경사를 가지며 좁아진다.A fourth molding housing 560 is provided to forge the third molding 350 by interacting with the fourth mold 460, and the fourth molding housing 560 has a front side of the third molding 350. It is formed to be inserted and the inner shape is formed to correspond to the head 230. The inlet of the fourth molding housing 560 is the same as the outer diameter of the third molding 350, and gradually narrows and has a gentle slope as in the shape of the head 230.
제4성형하우징(560) 내부에는 용접용 와이어의 직경과 같거나 큰 직경을 갖는 마감핀(565)이 위치한다.The finishing pin 565 having a diameter equal to or larger than the diameter of the welding wire is positioned in the fourth molding housing 560.
제4금형(460) 내부에 제3성형물(350) 뒤쪽이 삽입되어 고정된 상태에서 제4성형하우징(560)이 제3성형물(350) 쪽으로 접근하며, 제3성형물(350)의 앞쪽이 제4성형하우징(560)에 삽입된다. 이때, 마감핀(565)은 제3성형물(350)의 제3몸통부홀(353) 내부에 위치하며, 제3성형물(350)이 소성변형되면서 제4머리부홀(364)이 성형되도록 한다. 제4성형하우징(560)의 내부는 (머리부(230)의 모양과 같이) 완만한 경사를 이루고 있으므로, 제3성형물(350)의 앞쪽에 제4성형하우징(560) 내벽에 부딪혀 소성변형될 때 마감핀(565)에 무리한 하중이 가해지지는 않는다. The fourth molding housing 560 approaches the third molding 350 while the rear side of the third molding 350 is inserted into and fixed inside the fourth mold 460, and the front of the third molding 350 is first. It is inserted into the four-forming housing 560. In this case, the finishing pin 565 is located inside the third body hole 353 of the third molding 350, and the fourth head hole 364 is molded while the third molding 350 is plastically deformed. Since the interior of the fourth molding housing 560 has a gentle inclination (as in the shape of the head 230), the plastic molding may be deformed by hitting the inner wall of the fourth molding housing 560 in front of the third molding 350. When the finishing pin 565 is not excessively loaded.
이처럼, 제4성형하우징(560)이 제3성형물(350)의 앞쪽을 가압하는 방식으로 머리부(230)가 형성되는 머리부성형단계(S500)가 이루어지고, 머리부성형금형조립체(40)의 작동에 의한 머리부성형단계(S500)를 거치면서 도 5(g)에 도시된 제4성형물(360)이 성형된다.As such, the head molding step S500 of forming the head 230 in a manner in which the fourth molding housing 560 presses the front of the third molding 350 is performed, and the head molding mold assembly 40 is formed. The fourth molded part 360 shown in FIG. 5 (g) is molded while undergoing the head shaping step S500 by the operation of FIG.
본 발명의 바람직한 실시예에 따르면, 제4성형하우징(560)이 제3성형물(350)을 타격시, 제4금형(460)은 뒤쪽(도 6(g)에서 아래쪽)으로 슬라이딩 이동하면서 성형이 이루어질 수 있다. 슬라이딩 후에는 본래의 상태로 회복될 수 있도록 탄성수단이 개재된다. 이와 같은, 제4금형(460)의 슬라이딩은, 제4성형하우징(560)이 제3성형물(350)의 앞쪽에 접촉하는 순간 무리한 하중이 가해지는 것(특히, 마감핀(565)에 하중이 가해지는 것)을 방지하며, 제4성형하우징(560)이 제3성형물(350)의 앞쪽에 가하는 하중을 슬라이딩 과정 전체에 분산시킬 수 있으므로, 마감핀(565)의 파손을 방지할 수 있다.According to a preferred embodiment of the present invention, when the fourth molding housing 560 hits the third molding 350, the fourth mold 460 is slidably moving backwards (downward in FIG. 6 (g)). Can be done. After sliding, the elastic means is interposed so that it can be restored to its original state. As such, the sliding of the fourth mold 460 is applied to an excessive load at the moment when the fourth molding housing 560 contacts the front of the third molding 350 (in particular, the load is applied to the finishing pin 565). Being applied) and the load applied to the front of the third molded part 350 can be distributed throughout the sliding process, thereby preventing breakage of the finishing pin 565.
이하에서는 도 12a 내지 도 12c를 참조하여 머리부성형금형조립체(40)를 좀더 구체적으로 설명한다.Hereinafter, the head molding mold assembly 40 will be described in more detail with reference to FIGS. 12A to 12C.
본 발명에 따른 머리부성형금형조립체(40)는, 제4금형(460), 제4성형하우징(560), 제4외측슬리브(463), 제4돌기(462), 제4내측슬리브(464), 제4인출로드(465), 제4전방케이스(466), 제4후방케이스(467), 고정구(468) 및 제4탄성체(469)를 포함한다.The head molding mold assembly 40 according to the present invention includes a fourth mold 460, a fourth molding housing 560, a fourth outer sleeve 463, a fourth protrusion 462, and a fourth inner sleeve 464. ), A fourth drawing rod 465, a fourth front case 466, a fourth rear case 467, a fixture 468, and a fourth elastic body 469.
제4전방케이스(466) 및 제4후방케이스(467)가 전체적인 외형을 이루며, 제4성형하우징(560)을 제외한 다른 구성은 상기 제4전방케이스(466)와 제4후방케이스(467)가 이루는 공간 내부에 위치한다. 제4전방케이스(466)와 제4후방케이스(467)는 그 자체로 서로 결합되는 것은 아니고, 머리부성형금형조립체(40)가 조립된 형태로 용접토치용 컨택트팁 제조장치에 고정되어 사용된다.The fourth front case 466 and the fourth rear case 467 form the overall appearance, except for the fourth molding housing 560, the fourth front case 466 and the fourth rear case 467 are It is located inside the space. The fourth front case 466 and the fourth rear case 467 are not coupled to each other by themselves, but are fixed to the apparatus for manufacturing a contact tip for welding torch in a form in which the head mold assembly 40 is assembled. .
제4전방케이스(466)는 전단부에 걸림턱(466a)이 형성되어 제4금형(460)이 제4전방케이스(466) 앞쪽으로 이탈되는 것을 방지한다. 걸림턱(466a)를 제외하고 제4전방케이스(466)는 전체적으로 원통형으로 이루어진다. The fourth front case 466 has a latching jaw 466a formed at the front end thereof to prevent the fourth mold 460 from being separated from the front of the fourth front case 466. Except for the locking step 466a, the fourth front case 466 is formed in a cylindrical shape as a whole.
제4전방케이스(466) 뒤쪽으로 제4후방케이스(467)가 밀착되어 형성된다. 제4전방케이스(466)에는 앞쪽으로 돌출되어 원통형상으로 이루어진 슬리브고정부(467a)가 구비된다. 슬리브고정부(467a) 안쪽으로는 제4외측슬리브(463) 뒤쪽이 삽입되어 고정되고, 슬리브고정부(467a) 바깥쪽으로는 제4탄성체(469)가 위치한다. The fourth rear case 467 is formed in close contact with the rear of the fourth front case 466. The fourth front case 466 is provided with a sleeve fixing portion 467a protruding forward and formed in a cylindrical shape. The rear side of the fourth outer sleeve 463 is inserted and fixed inside the sleeve fixing portion 467a, and the fourth elastic body 469 is positioned outside the sleeve fixing portion 467a.
제4금형(460)의 외측면은 제4전방케이스(466)의 내측면에 밀착되어 전후방향으로 슬라이딩 가능하게 이루어진다. 그리고 제4금형(460) 내부에는 제4삽입홀이 형성되고, 제4삽입홀(460a)의 내경은 제3성형물(350)의 제3몸통부(354)의 외경과 동일한 직경으로 이루어진다. 제4삽입홀(460a)에서 제4성형하우징(560) 쪽으로는 제3성형물(350)이 위치하고, 반대쪽으로는 제4돌기(462), 제4내측슬리브(464) 및 제4외측슬리브(463)의 단부가 삽입된 형태로 위치한다.The outer surface of the fourth mold 460 is in close contact with the inner surface of the fourth front case 466 to be slidable in the front-rear direction. In addition, a fourth insertion hole is formed in the fourth mold 460, and the inner diameter of the fourth insertion hole 460a has the same diameter as the outer diameter of the third body 354 of the third molding 350. The third molding member 350 is positioned from the fourth insertion hole 460a toward the fourth molding housing 560, and the fourth protrusion 462, the fourth inner sleeve 464, and the fourth outer sleeve 463 are opposite to the fourth molding housing 560. ) End is inserted.
제4성형하우징(560)은 제3성형물(350)의 제3몸통부(354)쪽이 삽입될 수 있도록 형성되는데, 제4금형(460)과 마주하는 쪽, 즉 제3성형물(350)이 삽입되는 쪽 내부는 컨택트팁의 머리부에 대응되는 형태로 이루어진다. 그리고 제4성형하우징(560) 중앙에 마감핀(565)이 고정된다.The fourth molding housing 560 is formed to be inserted into the third body portion 354 of the third molding 350, the side facing the fourth mold 460, that is, the third molding 350 The inside of the inserted side has a shape corresponding to the head of the contact tip. The finishing pin 565 is fixed to the center of the fourth molding housing 560.
앞서 언급한 바와 같이, 제4외측슬리브(463)의 전단부는 제4삽입홀(460a)에 삽입되며, 제3성형물(350)을 지지한다. 제4외측슬리브(463)에서 제4삽입홀(460a)에 삽입된 부분은, 그 외경이 제4삽입홀(460a)의 내경과 동일하게 이루어지고, 그 내경은 제3연결부(352)의 외경과 동일하게 이루어진다. 제4외측슬리브(463)의 후단은 슬리브고정부(467a) 사이에 삽입되어 제4후방케이스(467)에 고정된다. 이처럼, 제4외측슬리브(463)의 앞쪽은 직경이 상대적으로 좁게 형성되고, 뒤쪽은 후술할 제4내측슬리브(464)의 슬라이딩을 허용하기 위하여 직경이 확장된 형태로 이루어진다.As mentioned above, the front end portion of the fourth outer sleeve 463 is inserted into the fourth insertion hole 460a to support the third molding 350. The portion of the fourth outer sleeve 463 inserted into the fourth insertion hole 460a has the same outer diameter as that of the fourth insertion hole 460a, and the inner diameter thereof is the outer diameter of the third connecting portion 352. Is done the same as The rear end of the fourth outer sleeve 463 is inserted between the sleeve fixing parts 467a and fixed to the fourth rear case 467. As such, the front of the fourth outer sleeve 463 is formed to be relatively narrow in diameter, and the rear of the fourth outer sleeve 463 has an enlarged diameter to allow sliding of the fourth inner sleeve 464 to be described later.
그리고, 제4외측슬리브(463)가 제4후방케이스(467)에 고정되도록 하기 위하여 제4외측슬리브(463)의 이동을 저지하는 고정구(468)가 형성되는데, 이러한 고정구(468)는 슬리브고정부(467a) 전단에 나사결합된다. 즉, 고정구(468)를 슬리브고정부(467a)에서 분리하는 경우 제4외측슬리브(463)는 제4후방케이스(467) 앞쪽방향으로 이동될 수 있으며, 고정구(468)를 슬리브고정부(467a)에 나사결합하는 경우 제4외측슬리브(463)는 제4후방케이스(467)에 고정된다.In addition, a fastener 468 is formed to prevent movement of the fourth outer sleeve 463 in order to fix the fourth outer sleeve 463 to the fourth rear case 467. Screwed to the front end of the top 467a. That is, when the fastener 468 is separated from the sleeve fixing part 467a, the fourth outer sleeve 463 may be moved toward the fourth rear case 467, and the fixing part 468 is fixed to the sleeve fixing part 467a. 4) the fourth outer sleeve 463 is fixed to the fourth rear case 467.
제4외측슬리브(463) 내측으로, 제4삽입홀(460a) 중앙선상에 위치하고 전단부가 제3연결부홀(351) 쪽에서 제3성형물(350) 내부로 삽입되는 제4돌기(462)가 형성된다. 제4돌기(462)의 후단은 제4후방케이스(467)에 의해 지지된다. 제4돌기(462)는 제3성형물(350)을 지지하되, 단조 성형시 제3성형물(350)의 제3연결부홀(351)의 변형이 없도록 지지한다.Inside the fourth outer sleeve 463, a fourth protrusion 462 is formed on the center line of the fourth insertion hole 460a and the front end portion is inserted into the third molding 350 from the third connection hole 351. . The rear end of the fourth protrusion 462 is supported by the fourth rear case 467. The fourth protrusion 462 supports the third molded part 350, but does not deform the third connection hole 351 of the third molded part 350 during forging.
제4외측슬리브(463) 내측으로는 제4내측슬리브(464)가 형성되는데, 제4내측슬리브(464)는 제4외측슬리브(463)와 제4돌기(462)가 이루는 공간상에 위치한다. 제4내측슬리브(464)의 후단은 직경이 확장되어 플랜지 형태로 이루어진다.A fourth inner sleeve 464 is formed inside the fourth outer sleeve 463, and the fourth inner sleeve 464 is positioned on a space formed by the fourth outer sleeve 463 and the fourth protrusion 462. . The rear end of the fourth inner sleeve 464 is expanded in diameter to form a flange.
제4내측슬리브(464) 뒤쪽으로는 제4인출로드(465)가 형성되는데, 제4인출로드(465)는 제4내측슬리브(464)를 제4성형하우징(560) 쪽으로 밀며 제3성형물(350)이 제4금형(460) 외부로 인출되도록 한다. 이를 위하여, 제4인출로드(465)는 제4후방케이스(467)를 관통하며 슬라이드 이동 가능하게 결합된다. A fourth drawing rod 465 is formed behind the fourth inner sleeve 464, and the fourth drawing rod 465 pushes the fourth inner sleeve 464 toward the fourth molding housing 560 to form a third molded article ( 350 to be drawn out of the fourth mold (460). To this end, the fourth lead-out rod 465 is coupled to the slide through the fourth rear case 467.
도 12b에 도시된 바와 같이, 제3성형물(350)이 제4삽입홀(460a) 내부에 삽입되면서 제3성형물(350)의 단조가공 준비가 이루어진다.As shown in FIG. 12B, the third molding 350 is inserted into the fourth insertion hole 460a to prepare forging of the third molding 350.
이 상태에서 제4성형하우징(560)은 제4금형(460)쪽으로 접근하며, 제4금형(460)을 뒤쪽으로 가압한다. 이때, 제4성형하우징(560)과 제4금형(460)은 제3성형물(350)을 완전히 둘러싸며 제3성형물(350)의 외부 모든 면을 지지한다. In this state, the fourth molding housing 560 approaches the fourth mold 460 and presses the fourth mold 460 backward. In this case, the fourth molding housing 560 and the fourth mold 460 completely surround the third molding 350 and support all external surfaces of the third molding 350.
제4성형하우징(560)이 더욱 전진하면, 제4금형(460)은 제4탄성체(469)에 의해 가압되면서 뒤쪽으로 밀리고 도 12c 위치까지 이동한다. 이 과정에서 마감핀(565)은 제3몸통부홀(353) 내부로 삽입되고 제4성형하우징(560)에 의해 가압된 제3몸통부(354)는 직경이 감소하면서 제4머리부홀(364)이 형성되는 제4성형물(360)과 같은 형태로 소성변형이 이루어진다. As the fourth molding housing 560 is further advanced, the fourth mold 460 is pushed backward by the fourth elastic body 469 and moves to the position of FIG. 12C. In this process, the finishing pin 565 is inserted into the third body hole 353 and the third body part 354 pressed by the fourth molding housing 560 has a diameter decreasing, and the fourth head hole 364. Plastic deformation is performed in the same form as the fourth molded product 360 formed therein.
성형이 완료되면 제4성형하우징(560)은 다시 뒤쪽으로 이동한다.When the molding is completed, the fourth molding housing 560 moves back.
이후, 제4인출로드(465)는 제4내측슬리브(464)를 밀고, 제4내측슬리브(464)는 제3성형물(350)이 변형된 제4성형물(360)을 인출한다. 이때, 제4외측슬리브(463)는 고정구(468)에 의해 제4후방케이스(467)에 고정된 상태가 유지된다.Thereafter, the fourth drawing rod 465 pushes the fourth inner sleeve 464, and the fourth inner sleeve 464 pulls out the fourth molding 360 from which the third molding 350 is deformed. In this case, the fourth outer sleeve 463 is fixed to the fourth rear case 467 by the fastener 468.
이처럼, 본 발명에서는 제성형하우징(560)에 의해 머리부가 바로 성형이 이루어지므로 연결부 쪽으로 불필요한 하중 전달이 필요없고, 제3성형물(350)이 제4삽입홀(460a) 내부에서 안착되고 모든 면이 지지된 상태에서 제4성형하우징(560)에 의해 가압되면서 성형이 이루어지므로 제3성형물(350)의 이격 없이 성형이 이루어지고, 제4금형(460)이 슬라이딩되면서 성형이 이루어져 제4성형하우징(560)의 크기 제한을 해소할 수 있고 안정된 작동이 이루어진다.As such, in the present invention, since the head is directly formed by the forming housing 560, unnecessary load transmission is unnecessary toward the connecting portion, and the third molding 350 is seated inside the fourth insertion hole 460a and all the surfaces thereof are disposed. Since the molding is performed while being pressurized by the fourth molding housing 560 in a supported state, the molding is performed without spaced apart from the third molding 350, and the molding is performed while the fourth mold 460 is slid to form the fourth molding housing ( The size limit of 560 can be eliminated and stable operation is achieved.
머리부성형단계(S500)가 완료 후 다각형성형단계(S600)가 이루어지며, 제4성형물(360) 뒤쪽을 가압하면서 몸통부(210) 단면이 다각형 형상을 갖도록 성형한다. 이처럼, 다각형으로 형성되도록 하는 것은, 컨택트팁(200)이 가스디퓨저에 결합 및 분리가 용이하게 이루어지도록 하기 위한 것이며, 6각을 포함한 다양한 형태로 이루어질 수 있다. 또한, 앞서 언급한 바와 같이, 다각형성형단계(S600)는 다각형성형금형조립체(50)의 사용에 따라 이루어진다. 다각형성형금형조립체(50)는 제5금형(470)과 제5성형하우징(570)을 포함한다. 다각형성형단계(S600)가 완료된 형태가 도 5(h)에 도시된다. After the head molding step (S500) is completed, the polygon molding step (S600) is made, while pressing the back of the fourth molded part 360 to shape the body portion 210 has a polygonal shape. As such, it is to be formed in a polygon, so that the contact tip 200 is easily coupled to and separated from the gas diffuser, it may be made in various forms including a hexagon. In addition, as mentioned above, the polygon molding step (S600) is made according to the use of the polygon molding mold assembly (50). The polygonal mold assembly 50 includes a fifth mold 470 and a fifth molding housing 570. The form in which the polygon forming step S600 is completed is shown in FIG. 5 (h).
다각형성형단계(S600)에서, 제4성형물(360)은 제4금형(460)속에서 인출되고 제5금형(470) 내부에 삽입된 후, 제5성형하우징(570)에 의하여 가압되면서 단조성형된다. 제5금형(470)은 컨택트팁(200)의 몸통부(210)에 대응되는 다각형 형상의 단면을 갖고, 아래쪽에 머리부(230)에 대응되는 형상을 갖도록 이루어진다. 아울러, 하단 중앙에, 마감핀(565)과 동일한 형태로 이루어져 제4머리부홀(364)에 삽입되어 제4머리부홀(364)의 변형을 방지하는 수단이 채택될 수 있다.In the polygon molding step S600, the fourth molding 360 is drawn out from the fourth mold 460 and inserted into the fifth mold 470, and then pressurized by the fifth molding housing 570 to forge the mold. do. The fifth mold 470 has a polygonal cross section corresponding to the body portion 210 of the contact tip 200 and has a shape corresponding to the head portion 230 at the bottom thereof. In addition, at the bottom center, the same shape as that of the finishing pin 565 may be inserted into the fourth head hole 364 to prevent deformation of the fourth head hole 364.
제5금형(470)과의 상호작용으로 제4성형물(360)을 단조성형하기 위하여 제5성형하우징(570)이 마련되며, 제5성형하우징(570)은 제4성형물(360)의 연결부(220)가 삽입될 수 있도록 형성된다.The fifth molding housing 570 is provided to forge the fourth molding 360 by interaction with the fifth mold 470, and the fifth molding housing 570 is connected to the fourth molding 360. 220 is formed to be inserted.
제5금형(470) 내부에 제4성형물(360) 앞쪽이 삽입된 상태에서 제5성형하우징(570)이 제4성형물(360) 쪽으로 접근하며, 제4성형물(360)이 제5금형(470)에 완전히 삽입되면서 몸통부(210) 둘레가 다각형 모양으로 성형된다. 이때, 마감핀(565)과 같은 구성이 제4성형물(360)의 머리부홀(231) 내부에 위치하며, 제4성형물(360)이 소성변형되더라도 머리부(230) 내지는 머리부홀(231)이 변형되는 것을 방지한다.The fifth molding housing 570 approaches the fourth molding 360 while the front of the fourth molding 360 is inserted into the fifth mold 470, and the fourth molding 360 approaches the fifth molding 470. ) Is completely inserted into the body portion 210 is formed in a polygonal shape. At this time, the configuration such as the finishing pin 565 is located inside the head hole 231 of the fourth molding 360, even if the fourth molding 360 plastic deformation, the head 230 or the head hole 231 is Prevents deformation.
이처럼, 제5성형하우징(570)이 제4성형물(360)의 뒤쪽을 가압하는 방식으로 다각형의 몸통부(210)가 형성되는 다각형성형단계(S600)가 이루어지고, 다각형성형금형조립체(50)의 작동에 의한 다각형성형단계(S600)를 거치면서 도 5(h)에 도시된 제5성형물(370)이 성형된다.As such, the polygon molding step S600 is performed in which the body portion 210 of the polygon is formed in such a manner that the fifth molding housing 570 presses the rear of the fourth molding 360, and the polygon molding assembly 50 is formed. The fifth molding 370 shown in FIG. 5 (h) is molded while performing the polygon molding step S600 by the operation of.
마감처리단계(S700)는, 제5성형물(370)의 양쪽 단부(머리부(230) 및 연결부(220)의 단부) 등에 외형상 마감 등이 필요한 경우 절삭, 연결부의 나사산 가공, 세척 등을 통하여 다듬는 공정이며, 이에 의하여 컨택트팁(200) 제조공정이 마무리된다.Finishing step (S700), if the outer appearance is required, such as both ends (head 230 and the end of the connecting portion 220) of the fifth molding 370 through cutting, thread processing of the connecting portion, washing, etc. This is a trimming process, whereby the manufacturing process of the contact tip 200 is finished.
도 7은 본 발명의 다른 실시예에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치에 따라 제조되는 각 성형물을 공정 순서에 따라 도시한 단면도이고, 도 8은 도 7에 따른 컨택트팁의 제조에 사용되는 제조장치를 개략적으로 도시한 단면도이다.7 is a cross-sectional view illustrating each molding manufactured according to the apparatus for manufacturing a contact torch for a welding torch using a forging method according to another embodiment of the present invention, and FIG. 8 is a view illustrating the manufacture of the contact tip according to FIG. It is sectional drawing which shows schematically the manufacturing apparatus used.
도 7 및 8을 토대로 설명되는 단조공법을 이용한 용접토치용 컨택트팁 제조장치는, 연결부성형금형조립체(10), 몸통부홀성형금형조립체(20), 연통금형조립체(30), 머리부성형금형조립체(40) 및 다각형성형금형조립체(50)를 포함하는데, 연결부성형금형조립체(10) 및 머리부성형금형조립체(40)를 제외하고, 상술한 바와 동일하게 이루어진다. 즉, 연결부성형단계(S200) 및 머리부성형단계(S500) 만이 다소 상이하게 이루어진다.Contact tip manufacturing apparatus for welding torch using the forging method described on the basis of Figures 7 and 8, the connection mold assembly 10, the body hole molding mold assembly 20, the communication mold assembly 30, the head mold assembly 40 and the polygonal molding mold assembly 50, except for the connection mold assembly 10 and the head mold assembly 40, the same as described above. That is, only the connection molding step (S200) and the head molding step (S500) is made slightly different.
구체적으로, 연결부성형금형조립체(10)는 제1'연결부성형금형조립체(13)와 제2연결부성형금형조립체(12)로 구분되는데, 제1'연결부성형금형조립체(13)가 배제되거나, 제1'연결부성형금형조립체(13)가 제1-3금형(410')과 제1-3펀치(510')를 포함하는 형태로 이루어질 수 있다. 그리고, 머리부성형금형조립체(40)는 상술한 바와 같이 제4금형(460)과 제4성형하우징(560)을 포함하는 것이 아니라, 제4-1금형(460')과 제4-1성형하우징(560')을 포함하는 형태로 이루어진다.Specifically, the connection mold assembly 10 is divided into a first 'connecting mold assembly 13 and a second connecting mold assembly 12, wherein the first' connecting mold assembly 13 is excluded, or The 1 'connection part mold assembly 13 may be formed in a form including the 1-3 mold 410' and the 1-3 punch 510 '. In addition, the head mold assembly 40 does not include the fourth mold 460 and the fourth molding housing 560 as described above, but the 4-1 mold 460 'and the 4-1 molding. It has a shape including a housing 560 '.
변경된 연결부성형금형조립체(10)에 따른 연결부성형단계(S200) 및 변경된 머리부성형금형조립체(40)의 따른 머리부성형단계(S500)를 간략히 설명한다.The connection part molding step (S200) according to the changed connection part mold assembly 10 and the head molding step (S500) according to the changed head molding mold assembly 40 will be briefly described.
모재준비단계(S100)가 완료후 연결부성형단계(S200)가 이루어지며, 모재(300)가 가압되면서 제1연결부(322) 및 제1연결부홀(321)이 형성된다. 이때, 모재(300)가 바로 상술한 제1-2금형(420)에 삽입되고 제1-2펀치(520)에 의하여 가압되면서 제1성형물(320)이 성형될 수 있다. 즉, 모재(300)성형단계 후 제1연결부성형단계(S210)를 거치지 않고 바로 제2연결부성형단계(S220) 공정이 이루어질 수 있다.After the base material preparation step S100 is completed, the connection part forming step S200 is performed, and the first connection part 322 and the first connection hole 321 are formed while the base material 300 is pressed. In this case, the first molding material 320 may be molded while the base material 300 is directly inserted into the above-described 1-2 mold 420 and pressed by the 1-2 punch 520. That is, after forming the base material 300, the second connection molding step S220 may be directly performed without passing through the first connection molding step S210.
이와 달리, 모재(300)가 제1-3금형(410')에 삽입되어 가공된 후 제2연결부성형단계(S220)를 거쳐 성형될 수 있다. 구체적으로, 모재(300)는 제1-3금형(410') 내부에 삽입된 후, 제1-3펀치에 의하여 가압되면서 단조성형된다. 제1-3금형(410')은 제1-3성형홀(411')이 형성되고 대체로 제1-1금형(410)과 유사하게 이루어지나, 제1-1연결부성형홀(412)과 같은 구성은 없다. 다만, 제1-3금형(410')의 내부 바닥 테두리는 직경이 감소하는 형태로 경사지거나 완만한 곡면을 형성하며, 이에 따라 모재(300) 하단도 직경이 감소하는 형상으로 가공되어 예비돌부(312')가 형성되는데, 이는 제2연결부성형단계(S220)시 제1연결부(322)가 형성됨에 있어서 예비돌부(312')가 자연스럽게 제1-2연결부성형홀(422)로 미끄러져 이동함으로써 제1연결부(322)가 형성되도록 하기 위함이다.On the contrary, the base material 300 may be inserted into the first-third mold 410 ', processed, and then molded through the second connection part forming step S220. Specifically, the base material 300 is forged molded while being inserted into the 1-3 mold 410 'and pressed by the 1-3 punch. The first-third mold 410 'is formed in the first-third molding hole 411' and is generally similar to the first-first mold 410, but the first-first connection molding hole 412 There is no configuration. However, the inner bottom edge of the 1-3 mold 410 'forms an inclined or gentle curved surface in the form of decreasing diameter, and accordingly, the lower end of the base material 300 is also processed into a shape in which the diameter decreases. 312 '), which is formed by the first connection part 322 being formed during the second connection part forming step S220, by which the preliminary protrusion 312' naturally slides to the first connection part forming hole 422. This is to form the first connection portion 322.
아울러, 제1-3금형(410') 바닥에는 제1-1성형돌기(413)와 유사한 제1-3성형돌기(413')가 형성되고, 이에 따라 제1-3성형물(310') 하단에도 제2예비홈(311')이 형성된다.In addition, a 1-3 molding protrusion 413 'similar to the 1-1 molding protrusion 413 is formed on the bottom of the 1-3 mold 410', and thus the bottom of the 1-3 molding 310 'is formed. The second spare groove 311 ′ is also formed.
이처럼, 제1-3금형(410') 내부에 모재(300)가 삽입되고 제1-3펀치가 타격하며 가압하는 방식으로 제1-3예비몸통부홀(313'), 예비돌부(312'), 제2예비홈(311')이 형성되는 제1'연결부성형단계(S200)가 이루어지고, 제1'연결부성형단계(S200)를 통하여 도 7(b)에 도시된 제1-3성형물(310')이 성형된다.As such, the first-preliminary body portion hole 313 'and the preliminary protrusion 312' are inserted in the manner in which the base material 300 is inserted into the first-third mold 410 'and the first-punch hits and presses. The first preliminary connecting portion forming step (S200) is formed in which the second preliminary groove 311 'is formed, and the first third forming article shown in FIG. 310 ') is molded.
도 8(b)에 도시된 바와 같이, 제2연결부성형단계(S220)는 상술한 바와 동일하게 이루어진다.As shown in FIG. 8B, the second connection molding step S220 is performed in the same manner as described above.
머리부성형단계(S500)에서, 제3성형물(350)은 제3금형(450) 속에서 인출되고 제4-1금형(460') 내부에 삽입된 후, 제4-1성형하우징(560')에 의하여 가압되면서 단조성형될 수 있다. 제4-1금형(460')은 상술한 제4성형하우징(560)과 유사한 형태로 이루어지고, 제4-1성형하우징(560')은, 상술한 제4금형(460)과 유사한 형태로 이루어진다. 그리고 상술한 마감핀(565)은 제4-1금형(460') 내부에 위치하게 된다. 도 8(g)에 도시된 바와 같이, 제4-1성형하우징(560')의 전단에 제4홀(461) 및 제4돌기(462)와 방향이 반대이고 형태가 동일한 제4-1홀(561) 및 제4-1돌기(562)가 형성된다.In the head molding step S500, the third molding 350 is drawn out from the third mold 450 and inserted into the 4-1 mold 460 ′, and then the 4-1 molding housing 560 ′. It can be forged while being pressed by). The 4-1 mold 460 'has a similar shape to the above-mentioned fourth molding housing 560, and the 4-1 molding housing 560' has a similar shape to the above-mentioned fourth mold 460. Is done. The finishing pin 565 described above is located inside the 4-1 mold 460 '. As shown in FIG. 8 (g), the 4-1 hole in the same direction as that of the fourth hole 461 and the fourth protrusion 462 at the front end of the 4-1 molding housing 560 'and having the same shape. 561 and the 4-1 th protrusion 562 are formed.
즉, 제4-1금형(460') 내부에 제3성형물(350) 앞쪽이 삽입되어 고정된 상태에서 제4-1성형하우징(560')이 제3성형물(350) 쪽으로 접근하며, 제3성형물(350)의 앞쪽이 제4-1금형(460')에 완전히 삽입된다. 이때, 마감핀(565)은 제3성형물(350)의 몸통부홀(211) 내부에 위치하며, 제3성형물(350)이 소성변형되면서 머리부홀(231)이 성형되도록 한다. That is, the 4-1 molding housing 560 'approaches the third molding 350 while the front of the third molding 350 is inserted and fixed inside the 4-1 mold 460'. The front of the molding 350 is completely inserted into the 4-1 mold 460 '. At this time, the finishing pin 565 is located inside the body portion hole 211 of the third molded part 350, so that the head hole 231 is molded while the third molded part 350 is plastically deformed.
앞에서, 본 발명의 특정한 실시예가 설명되고 도시되었지만 본 발명은 기재된 실시예에 한정되는 것이 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명한 일이다. 따라서, 그러한 수정예 또는 변형예들은 본 발명의 기술적 사상이나 관점으로부터 개별적으로 이해되어서는 안되며, 변형된 실시예들은 본 발명의 특허청구범위에 속한다 하여야 할 것이다.While specific embodiments of the invention have been described and illustrated above, it is to be understood that the invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the invention. It is obvious to those who have. Therefore, such modifications or variations are not to be understood individually from the technical spirit or viewpoint of the present invention, and the modified embodiments shall belong to the claims of the present invention.
본 발명에 따른 단조공법을 이용한 용접토치용 컨택트팁 제조장치에 의하면 컨택트팁의 성형시 각 금형조립체 내지는 모재의 손상 및 파손을 방지되고 연결부홀이 형성된 연결부 부분의 성형이 용이하다는 점에서, 기존 기술의 한계를 뛰어 넘음에 따라 관련 기술에 대한 이용만이 아닌 적용되는 장치의 시판 또는 영업의 가능성이 충분할 뿐만 아니라 현실적으로 명백하게 실시할 수 있는 정도이므로 산업상 이용가능성이 있는 발명이다.According to the present invention, an apparatus for manufacturing a contact tip for a welding torch using a forging method according to the present invention prevents damage and breakage of each mold assembly or base metal during molding of the contact tip, and easily forms a connection part in which a connection hole is formed. It is an invention that has industrial applicability because the possibility of marketing or sales of the applied device is not only sufficient for the use of related technology but also practically obvious as it goes beyond the limit of.

Claims (30)

  1. 몸통부, 상기 몸통부보다 외경이 작고 용접토치의 가스디퓨저에 연결되는 연결부 및 상기 연결부의 반대쪽에 형성되는 머리부를 포함하고, 중앙이 관통되어 몸통부홀, 연결부홀 및 머리부홀이 구비되는 용접토치용 컨택트팁 제조장치에 있어서,Body part, the outer diameter is smaller than the body part and includes a connecting portion connected to the gas diffuser of the welding torch and a head formed on the opposite side of the connecting portion, the center penetrates through the body hole, the connecting hole and the head hole for the welding torch In the contact tip manufacturing apparatus,
    모재(母材)를 가압하여, 제1연결부홀이 형성되는 제1성형물을 성형하는 연결부성형금형조립체;A connection part mold assembly for pressing the base material to form a first molded part in which the first connection part hole is formed;
    상기 제1성형물 중앙을 가압하여, 제2몸통부홀이 형성되는 제2성형물을 성형하는 몸통부홀성형금형조립체;A body hole molding mold assembly configured to press the center of the first body to form a second body in which a second body hole is formed;
    상기 제2성형물 중앙을 가압하여 상기 제1연결부홀과 제2몸통부홀이 연통되는 제3성형물을 성형하는 연통금형조립체; 및A communication mold assembly configured to press the center of the second molding to form a third molding in which the first connecting portion hole and the second body portion hole communicate; And
    용접용 와이어 직경과 같거나 큰 마감핀을 상기 제3성형물 내부에 위치시키고 상기 제3성형물을 가압하면서 제4머리부홀이 형성되는 제4성형물을 성형하는 머리부성형금형조립체;를 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.And a head molding mold assembly for forming a fourth molding in which a fourth head hole is formed while placing a finishing pin having a diameter equal to or larger than a welding wire in the third molding and pressing the third molding. Contact tip manufacturing device for welding torch using the forging method.
  2. 제1항에 있어서,The method of claim 1,
    상기 제1연결부홀은 상기 연결부홀과 길이가 같거나 짧고,The first connection hole is the same length or shorter than the connection hole,
    상기 제2몸통부홀은 상기 몸통부홀보다 길이가 긴 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The second body portion hole is a contact tip manufacturing apparatus for a welding torch using a forging method, characterized in that the length is longer than the body portion hole.
  3. 제2항에 있어서, 상기 연결부성형금형조립체는,The method of claim 2, wherein the connection mold assembly,
    상기 모재가 삽입되는 제1-1성형홀 및 상기 제1-1성형홀 내측 단부에 상기 연결부 외경에 대응되는 제1-1연결부성형홀이 형성되는 제1-1금형에 상기 모재를 삽입 후 가압하여 제1-1성형물을 성형하는 제1연결부성형금형조립체; 및Pressing after the base material is inserted into the 1-1 mold, the 1-1 molding hole into which the base material is inserted and the 1-1 mold where the 1-1 connection part molding hole corresponding to the outer diameter of the connection part is formed at the inner end of the 1-1 molding hole. A first connection molding die assembly for molding the first-first molded article; And
    상기 제1-1성형물이 삽입되는 제1-2성형홀, 상기 제1-2성형홀 내측 단부에 상기 연결부 외경에 대응되는 제1-2연결부성형홀 및 상기 제1-2연결부성형홀 중앙에서 용접용 와이어 직경과 같거나 큰 제1-2성형돌기가 형성되는 제1-2금형에 상기 제1-1성형물을 삽입 후 가압하여 상기 제1성형물을 완성하는 제2연결부성형금형조립체;로 구분되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.In the center of the 1-2 molding hole into which the 1-1 molding is inserted, the 1-2 connecting part molding hole corresponding to the outer diameter of the connecting part at the inner end of the 1-2 molding hole, and the 1-2 connecting part molding hole in the center. A second connection mold assembly for completing the first molding by inserting and pressing the first-first molding into the first-second mold having a first-two molding protrusion having a diameter equal to or larger than the welding wire diameter; Contact tip manufacturing apparatus for welding torch using a forging method, characterized in that.
  4. 제3항에 있어서,The method of claim 3,
    상기 제1-1금형에서 상기 제1-1연결부성형홀 중앙에는 상기 제1-2성형돌기 보다 짧은 제1-1성형돌기가 형성되고,In the first-first mold, the first-first forming protrusion is formed at the center of the first-first connection part forming hole, which is shorter than the first-second forming protrusion,
    상기 제1-1성형돌기에 의해 예비홈이 성형되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.Apparatus for manufacturing a contact torch for a welding torch using the forging method, wherein the preliminary groove is formed by the first-first forming protrusion.
  5. 제1항에 있어서, 상기 몸통부홀성형금형조립체는,According to claim 1, wherein the body hole molding mold assembly,
    상기 제2몸통부홀의 일부가 형성되는 제2-1성형물을 성형하는 제1몸통부홀성형금형조립체; 및A first body hole-molding mold assembly for molding a second-first molding in which a portion of the second body hole is formed; And
    상기 제2몸통부홀의 나머지를 성형하여 상기 제2성형물을 완성하는 제2몸통부홀성형금형조립체;로 구분되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.Apparatus for manufacturing a contact torch for a welding torch using a forging method, characterized in that divided into; the second body portion hole molding mold assembly for completing the second molding by molding the remainder of the second body portion hole.
  6. 제1항에 있어서,The method of claim 1,
    단면의 전체 또는 일부가 다각형으로 형성되는 제5금형과, 상기 제5금형에 삽입되는 상기 제4성형물을 가압하는 제5성형하우징으로 이루어지는 다각형성형금형조립체;를 더 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The forging method further comprises a polygonal molding assembly consisting of a fifth mold formed in a polygon or all of its cross-section, and a fifth molding housing for pressing the fourth molding inserted into the fifth mold. Contact tip manufacturing apparatus for welding torch using.
  7. 제3항 또는 제4항에 있어서,The method according to claim 3 or 4,
    상기 제1연결부성형금형조립체는, 예비몸통부홀을 형성하는 예비몸통부돌기가 형성되고 상기 모재의 앞쪽을 가압하는 제1-1펀치를 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The first connection mold assembly is a contact tip for a welding torch using a forging method, characterized in that a preliminary body portion protrusion forming a preliminary body portion hole is formed and includes a 1-1 punch for pressing the front side of the base material. Manufacturing equipment.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 제2연결부성형금형조립체는, 상기 예비몸통부홀에 삽입되는 제1-2예비몸통부돌기가 형성되고 상기 제1-1성형물의 앞쪽을 가압하는 제1-2펀치를 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The second connection part mold assembly includes a 1-2 punch which is formed with a 1-2 preliminary body protrusion inserted into the preliminary body hole and presses the front of the 1-1 molding. Contact tip manufacturing device for welding torch using forging method.
  9. 제3항 또는 제4항에 있어서,The method according to claim 3 or 4,
    상기 몸통부홀성형금형조립체에는, 상기 제1연결부홀에 삽입되되 상기 제1-2성형돌기보다 길이가 긴 돌기가 형성되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The body hole forming mold assembly, the torch contact tip manufacturing apparatus using a forging method, characterized in that the projection is inserted into the first connection hole is longer than the 1-2 forming projections are formed.
  10. 제9항에 있어서,The method of claim 9,
    상기 몸통부홀성형금형조립체는,The body hole molding mold assembly,
    상기 제2몸통부홀의 일부가 형성되는 제2-1성형물을 성형하는 제1몸통부홀성형금형조립체; 및A first body hole-molding mold assembly for molding a second-first molding in which a portion of the second body hole is formed; And
    상기 제2몸통부홀의 나머지를 성형하여 상기 제2성형물을 완성하는 제2몸통부홀성형금형조립체;로 구분되고,And a second body hole molding mold assembly for molding the rest of the second body hole to complete the second molding.
    상기 제1몸통부홀성형금형조립체에는 상기 제1-2성형돌기 보다 길이가 긴 제2-1돌기가 형성되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.Apparatus for manufacturing a contact torch for a welding torch using the forging method, wherein the first body hole molding mold assembly includes a 2-1 protrusion having a length longer than that of the 1-2 molding protrusion.
  11. 제10항에 있어서,The method of claim 10,
    상기 제2몸통부홀성형금형조립체에는 상기 제2-1돌기 보다 길이가 긴 제2-2돌기가 형성되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.Apparatus for manufacturing a contact torch for a welding torch using the forging method, wherein the second body hole molding mold assembly has a second-2 protrusion having a length longer than that of the second-1 protrusion.
  12. 제3항 또는 제4항에 있어서,The method according to claim 3 or 4,
    상기 제2연결부성형금형조립체에서, 상기 제1-1성형물이 삽입 후 가압될 때, 상기 제1-2금형이 가압방향 뒤쪽으로 슬라이딩 되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.Apparatus for manufacturing a contact torch for a welding torch using the forging method, wherein in the second connection part mold assembly, when the first-first molding is pressed after insertion, the first-second mold slides backward in the pressing direction. .
  13. 제1항에 있어서,The method of claim 1,
    상기 제2성형물은, 중앙에 일측으로 개구된 상기 제2몸통부홀이 형성된 제2몸통부 및 중앙에 상기 제2몸통부홀 반대쪽으로 개구된 제2연결부홀이 형성되고 상기 제2몸통부보다 직경이 작은 제2연결부를 포함하고,The second molding may have a second body portion having the second body portion hole opened to one side at a center thereof, and a second connecting portion hole formed to be opposite to the second body portion hole at the center thereof, and having a diameter greater than that of the second body portion. Including a small second connection,
    상기 연통금형조립체는,The communication mold assembly,
    상기 제2성형물이 상기 제2몸통부 쪽에서 삽입되는 제3삽입홀이 형성된 제3금형;A third mold having a third insertion hole through which the second molding is inserted from the second body portion;
    상기 제2성형물의 상기 제2연결부 쪽을 가압지지하는 제3성형하우징; 및A third molding housing configured to press-support the second connecting portion of the second molding; And
    상기 제2성형물에서 상기 제2몸통부홀과 제2연결부홀 사이를 가압하여 서로 연통되도록 하는 제3펀치를 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.And a third punch that presses between the second body portion hole and the second connection portion hole to communicate with each other in the second molding.
  14. 제13항에 있어서,The method of claim 13,
    상기 제3펀치는 상기 제3삽입홀 중앙에 놓이도록 배치되고 상기 제2몸통부홀 쪽에서 삽입되어 상기 제2성형물을 가압하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The third punch is a contact tip manufacturing apparatus for a welding torch using a forging method, characterized in that disposed in the center of the third insertion hole is inserted from the second body hole side to press the second molding.
  15. 제14항에 있어서, 상기 연통금형조립체는,The method of claim 14, wherein the communication mold assembly,
    상기 제3펀치 일부를 감싸며 상기 제2몸통부 전단과 마주하고, 상기 제2성형물의 삽입방향 전후로 슬라이딩되는 제3슬리브; 및A third sleeve surrounding a portion of the third punch and facing the front end of the second body portion and sliding back and forth in an insertion direction of the second molding; And
    상기 제3슬리브를 상기 제3성형하우징 쪽으로 밀며 상기 제2성형물이 인출되도록하는 제3인출로드를 더 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.And a third drawing rod which pushes the third sleeve toward the third molding housing and draws the second molded article out of the third molding housing.
  16. 제15항에 있어서,The method of claim 15,
    상기 제3금형은 상기 제3성형하우징 반대쪽으로 슬라이딩 가능하게 이루어지고,The third mold is made slidable to the opposite side of the third molding housing,
    상기 연통금형조립체는, 상기 제3금형을 상기 제3성형하우징 쪽으로 가압하는 제3탄성체를 더 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The communication mold assembly further comprises a third elastic body for pressing the third mold toward the third molding housing, the torch contact tip manufacturing apparatus using the forging method.
  17. 제16항에 있어서, 상기 연통금형조립체는,The method of claim 16, wherein the communication mold assembly,
    내부에서 상기 제3금형이 슬라이딩되고, 전단에 상기 제3금형이 걸리는 걸림턱이 형성된 제3전방케이스; 및A third front case in which the third mold is slid inward, and a latching jaw in which the third mold is caught at a front end thereof is formed; And
    상기 제3전방케이스 후단에 결합하고, 앞쪽에 상기 제3펀치의 후단이 밀착되며, 상기 제3인출로드가 관통되는 제3후방케이스를 더 포함하는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.It is coupled to the rear end of the third front case, the rear end of the third punch is in close contact with the front, the contact for the welding torch using a forging method, characterized in that it further comprises a third rear case through which the third withdrawal rod penetrates. Tip Maker.
  18. 제15항에 있어서,The method of claim 15,
    상기 제3슬리브의 앞쪽 외주면은 상기 제3삽입홀 내주면에 이격없이 밀착되고, 상기 제3슬리브의 내주면은 상기 제3펀치의 가운데 외주면에 이격없이 밀착되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The front outer circumferential surface of the third sleeve is in close contact with the inner circumferential surface of the third insertion hole, the inner circumferential surface of the third sleeve is in close contact with the outer peripheral surface of the middle of the third punch for the welding torch using the forging method Contact tip manufacturing device.
  19. 제13항 내지 제18항 중 어느 한 항에 있어서,The method according to any one of claims 13 to 18,
    상기 제3펀치의 앞쪽은 상기 제2연결부의 길이보다 긴 구간에서 상기 제2연결부홀의 내경과 동일한 외경을 갖고, 상기 제3펀치의 가운데는 상기 제2몸통부홀의 내경과 동일한 외경을 갖는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.The front side of the third punch has an outer diameter equal to the inner diameter of the second connection portion hole in the section longer than the length of the second connection portion, the center of the third punch has an outer diameter equal to the inner diameter of the second body portion hole Contact tip manufacturing device for welding torch using the forging method.
  20. 제13항 내지 제18항 중 어느 한 항에 있어서,The method according to any one of claims 13 to 18,
    상기 제3성형하우징 내부로 상기 제2연결부가 삽입되고,The second connector is inserted into the third molding housing,
    상기 제3성형하우징 내부에는 배출구가 형성되는 것을 특징으로 하는 단조공법을 이용한 용접토치용 컨택트팁 제조장치.Contact tip manufacturing apparatus for a welding torch using the forging method, characterized in that the outlet is formed in the third molding housing.
  21. 제1항에 있어서,The method of claim 1,
    상기 제3성형물은, 중앙에 일측으로 개구된 제3몸통부홀이 형성된 제3몸통부 및 중앙에 상기 제3몸통부홀과 연통된 제3연결부홀이 형성되고 상기 제3몸통부보다 직경이 작은 제3연결부를 포함하고,The third molded part may include a third body part having a third body hole opened to one side at a center thereof, and a third connection hole communicating with the third body hole at a center thereof, and having a diameter smaller than that of the third body part. Including 3 connectors,
    상기 머리부성형금형조립체는,The head molding mold assembly,
    상기 제3성형물이 상기 제3연결부 쪽에서 삽입되는 제4삽입홀 형성된 제4금형;A fourth mold having a fourth insertion hole into which the third molding is inserted from the third connection portion;
    전단부가 상기 제4삽입홀에 삽입되어 상기 제3성형물을 지지하는 제4외측슬리브; 및A fourth outer sleeve having a front end inserted into the fourth insertion hole to support the third molding; And
    용접용 와이어 직경과 같거나 크고 상기 제3몸통부홀 내부로 삽입되는 마감핀이 중앙에 형성되고, 상기 제3성형물의 상기 제3몸통부 쪽을 가압하여 제4머리부홀을 성형하는 제4성형하우징;을 포함하는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.A fourth molding housing having a diameter equal to or larger than a welding wire diameter and having a closing pin inserted into the third body hole, is formed in the center, and pressing the third body portion of the third molding to form a fourth head hole. Contact tip manufacturing apparatus for a welding torch comprising a.
  22. 제21항에 있어서, 상기 머리부성형금형조립체는,The method of claim 21, wherein the head molding mold assembly,
    상기 제4삽입홀 중앙선상에 위치하고 전단부가 상기 제3연결부홀 쪽에서 삽입되는 제4돌기가 더 포함되는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.And a fourth protrusion positioned on the fourth insertion hole center line and having a front end portion inserted into the third connection hole side.
  23. 제22항에 있어서, 상기 머리부성형금형조립체는,The method of claim 22, wherein the head molding mold assembly,
    상기 제4돌기 일부를 감싸며 상기 제3연결부 전단을 지지하고, 상기 제3성형물의 삽입방향 전후로 슬라이딩되는 제4내측슬리브; 및A fourth inner sleeve surrounding a portion of the fourth protrusion to support the front end of the third connecting portion and sliding back and forth in an inserting direction of the third molding; And
    상기 제4내측슬리브를 상기 제3성형하우징 쪽으로 밀며 상기 제3성형물이 인출되도록하는 제4인출로드를 더 포함하는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.And a fourth lead-out rod for pushing the fourth inner sleeve toward the third molded housing and allowing the third molded product to be drawn out.
  24. 제23항에 있어서,The method of claim 23, wherein
    상기 제4금형은 상기 제4성형하우징 반대쪽으로 슬라이딩 가능하게 이루어지고,The fourth mold is slidable to the opposite side of the fourth molding housing,
    상기 머리부성형금형조립체는, 상기 제4금형을 상기 제4성형하우징 쪽으로 가압하는 제4탄성체를 더 포함하는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.The head molding mold assembly further comprises a fourth elastic body for pressing the fourth mold toward the fourth molding housing.
  25. 제24항에 있어서, 상기 머리부성형금형조립체는,The method of claim 24, wherein the head mold assembly,
    내부에서 상기 제4금형이 슬라이딩되고, 전단에 상기 제4금형이 걸리는 걸림턱이 형성된 제4전방케이스; 및A fourth front case in which the fourth mold is slid inward, and a latching jaw in which the fourth mold is caught at a front end thereof is formed; And
    상기 제4전방케이스 후단에 밀착되고, 앞쪽에 상기 제4돌기의 후단이 밀착되며, 상기 제4인출로드가 관통되는 제4후방케이스를 더 포함하는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.And a fourth rear case in close contact with the rear end of the fourth front case, in close contact with the rear end of the fourth protrusion, and through the fourth lead-out rod.
  26. 제25항에 있어서, 상기 머리부성형금형조립체는,The method of claim 25, wherein the head mold assembly,
    상기 제4전방케이스 또는 제4후방케이스에 결합되고, 상기 제4외측슬리브의 이동을 저지하는 고정구를 더 포함하는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.Coupled to the fourth front case or the fourth rear case, contact tip manufacturing apparatus for a welding torch, characterized in that it further comprises a fixture for preventing the movement of the fourth outer sleeve.
  27. 제26항에 있어서,The method of claim 26,
    상기 제4후방케이스에는 상기 제4외측슬리브 뒤쪽을 감싸는 슬리브고정부가 형성되고,The fourth rear case is formed with a sleeve fixing portion surrounding the back of the fourth outer sleeve,
    상기 고정구는 상기 슬리브고정부 전단에 나사결합되는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.The fixture is a contact tip manufacturing apparatus for a welding torch, characterized in that screwed to the sleeve fixing front end.
  28. 제23항에 있어서,The method of claim 23, wherein
    상기 제4외측슬리브의 앞쪽 외주면은 상기 제4삽입홀 내주면에 이격없이 밀착되고, 상기 제4외측슬리브의 앞쪽 내주면은 상기 제4내측슬리브 외주면에 이격없이 밀착되며, 상기 제4내측슬리브의 내주면은 상기 제4돌기의 가운데 외주면에 이격없이 밀착되는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.The front outer peripheral surface of the fourth outer sleeve is in close contact with the inner peripheral surface of the fourth insertion hole, the front inner peripheral surface of the fourth outer sleeve is in close contact with the outer peripheral surface of the fourth inner sleeve, the inner peripheral surface of the fourth inner sleeve is Contact tip manufacturing apparatus for a welding torch, characterized in that the fourth outer projection is in close contact with the outer peripheral surface.
  29. 제22항 내지 제28항 중 어느 한 항에 있어서,The method according to any one of claims 22 to 28, wherein
    상기 제4돌기의 앞쪽은 상기 제3연결부의 길이보다 긴 구간에서 상기 제2연결부홀의 내경과 동일한 외경을 갖는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.The front side of the fourth projection is a contact tip manufacturing apparatus for a welding torch, characterized in that it has the same outer diameter as the inner diameter of the second connecting hole in the section longer than the length of the third connecting portion.
  30. 제21항 내지 제28항 중 어느 한 항에 있어서,The method according to any one of claims 21 to 28, wherein
    상기 제4성형하우징이 상기 제4금형과 마주하는 쪽 내부는 상기 머리부에 대응되는 형태로 이루어지는 것을 특징으로 하는 용접토치용 컨택트팁 제조장치.The fourth forming housing is in contact with the fourth mold inside the contact tip manufacturing apparatus for a welding torch, characterized in that formed in a form corresponding to the head.
PCT/KR2013/005286 2012-06-15 2013-06-14 Apparatus for manufacturing contact tip for welding torch by forging WO2013187734A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR1020120064616A KR20130141305A (en) 2012-06-15 2012-06-15 A mold assembly for use with the manufacturing apparatus of contact tip for welding torch device by forging process
KR10-2012-0064617 2012-06-15
KR10-2012-0064615 2012-06-15
KR1020120064615A KR20130141304A (en) 2012-06-15 2012-06-15 A mold assembly for use with the manufacturing apparatus of contact tip for welding torch device by forging process
KR1020120064617A KR101387154B1 (en) 2012-06-15 2012-06-15 Manufacturing apparatus of Contact Tip for Welding Torch Device by Forging Process
KR10-2012-0064616 2012-06-15

Publications (1)

Publication Number Publication Date
WO2013187734A1 true WO2013187734A1 (en) 2013-12-19

Family

ID=49758490

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/005286 WO2013187734A1 (en) 2012-06-15 2013-06-14 Apparatus for manufacturing contact tip for welding torch by forging

Country Status (1)

Country Link
WO (1) WO2013187734A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439029A (en) * 2014-09-15 2015-03-25 浙江超凡新材科技有限公司 Cold-upsetting manufacturing technology for hollow flange rotary shaft

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3472350B2 (en) * 1994-07-21 2003-12-02 株式会社ダイヘン Contact tip for arc welding and method of manufacturing the same
KR200398466Y1 (en) * 2005-07-20 2005-10-12 주식회사 동화 티.씨이.에이 A manufacturing press system for welding tip
KR200422605Y1 (en) * 2006-05-15 2006-07-27 손동주 Apparatus for manufacturing contact tip of welding touch
JP2007027590A (en) * 2005-07-21 2007-02-01 Hitachi Kokusai Electric Inc Substrate processing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3472350B2 (en) * 1994-07-21 2003-12-02 株式会社ダイヘン Contact tip for arc welding and method of manufacturing the same
KR200398466Y1 (en) * 2005-07-20 2005-10-12 주식회사 동화 티.씨이.에이 A manufacturing press system for welding tip
JP2007027590A (en) * 2005-07-21 2007-02-01 Hitachi Kokusai Electric Inc Substrate processing system
KR200422605Y1 (en) * 2006-05-15 2006-07-27 손동주 Apparatus for manufacturing contact tip of welding touch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439029A (en) * 2014-09-15 2015-03-25 浙江超凡新材科技有限公司 Cold-upsetting manufacturing technology for hollow flange rotary shaft

Similar Documents

Publication Publication Date Title
WO2010087610A2 (en) Vent ring, nozzle assembly for an injection machine comprising same, and method for manufacturing same
WO2013187734A1 (en) Apparatus for manufacturing contact tip for welding torch by forging
US9793626B2 (en) Mold for forming terminal of electric wire
WO2020059969A1 (en) Embossed stainless pipe manufacturing apparatus and embossed stainless pipe manufacturing method using same
WO2012079470A1 (en) Inner connecting element of cavity power divider, cavity power divider and manufacturing method thereof
JP5191715B2 (en) Forced pressurized power supply torch
US20050109736A1 (en) One-piece consumable assembly
WO2017188629A1 (en) Headrest folding device
WO2011071301A2 (en) Cosmetics container having a rotatable knob
WO2017111243A1 (en) Straightening system and straightening method
WO2015020269A1 (en) Apparatus for fixing position of workpiece
JP4488900B2 (en) Injection molding machine
WO2011099711A2 (en) Method for manufacturing a contact tip for a welding torch through forging
WO2019045349A1 (en) Frame for steel furniture and frame assembly
WO2013129762A1 (en) Apparatus for manufacturing injection-molded articles, and method for manufacturing injection-molded articles using same
WO2020242084A1 (en) Bending machine
KR200422605Y1 (en) Apparatus for manufacturing contact tip of welding touch
WO2013187732A1 (en) Method for manufacturing contact tip for welding torch by forging
WO2022108158A1 (en) Method for forming ptfe coating film on stent, stent manufactured thereby, and jig used for same
WO2021118078A1 (en) Mold
WO2020085657A1 (en) Indirect hydraulic wire cutting stick for live wire, and indirect live wire cutting method using same
KR100678538B1 (en) Coupling apparatus for welding cable
WO2017191949A1 (en) Wiper blade assembly
KR102062532B1 (en) Tie-Tie cable for TIG welding to the system
KR20230006101A (en) Arc welding rod holder

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13804471

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13804471

Country of ref document: EP

Kind code of ref document: A1