CN105397114B - Head can beat automatically push pin device - Google Patents
Head can beat automatically push pin device Download PDFInfo
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- CN105397114B CN105397114B CN201410465666.4A CN201410465666A CN105397114B CN 105397114 B CN105397114 B CN 105397114B CN 201410465666 A CN201410465666 A CN 201410465666A CN 105397114 B CN105397114 B CN 105397114B
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- head
- sliding
- ejector pin
- thimble
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- 241000748087 Hymenothrix Species 0.000 claims abstract description 33
- 238000003754 machining Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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Abstract
The present invention disclose a kind of head can beat automatically push pin device, include a top heart handle and a head slider, the top heart handle includes a shank and is formed at a head on the shank top, the head is provided with a joint portion, the head slider is slidably disposed in the head of the top heart handle, the head slider includes a sliding part, one is equipped in clamping piece at the top of the sliding part, one wears the sliding part and be fixed on the fixture on the head and one be incorporated into the thimble head of the slide assemblies, and the slide assemblies are unrolled start centered on the joint portion；The present invention can be incorporated into the spacing formed between the joint portion of the top heart handle by the head slider, beat is slided automatically in the way of circumference detours, and then the center beat tolerance produced during balanced compensated machining object clamping, thimble can be allowed to be directed at the center of machining object completely, thimble beat is not resulted in, and reaches the effect of the service life of increase thimble bearing and tail stock.
Description
Technical Field
The invention relates to a thimble device for lathe processing, in particular to a thimble device with a head capable of automatically deflecting.
Background
In a conventional lathe, a workpiece is held by a chuck of a spindle, and an ejector pin on a tailstock of the lathe abuts against a center hole at the end of the workpiece.
The general thimble can be divided into a fixed thimble and a movable thimble, and the movable thimble can be divided into a fixed movable thimble and a replaceable movable thimble, wherein:
fig. 12 shows a conventional fixed thimble 60, wherein the fixed thimble 60 includes a thimble handle 61, the thimble handle 61 is a handle body extending in the up-down direction, a head 610 is formed at the top end of the thimble handle 61, a handle 611 is formed at the lower side of the head 610, a nut 62 for assisting the thimble to exit from the lathe tailstock is screwed at the lower side of the head 610, and a thimble head 612 is formed at the top end of the thimble handle 61 for propping against the central hole at the end of the workpiece.
As shown in fig. 13, the fixed movable thimble 70 includes a thimble sleeve 71 and a thimble 72, the thimble sleeve 71 extends along the up and down direction and forms an assembly space 710 therein, an upper bearing 73, a thrust bearing 74 and a lower bearing 75 are fixed on the side wall of the assembly space 710 of the thimble sleeve 71 along the up and down direction, the thimble 72 is arranged between the upper bearing 73, the thrust bearing 74 and the lower bearing 75 along the front and back direction, the top of the thimble 72 extends forward from the top of the thimble sleeve 71 and forms a thimble head 721, the thimble head 721 is directly formed with the thimble 72 into a taper shape, such as a taper shape of standard type, slender type, umbrella type, etc.
As shown in fig. 14, an alternative movable thimble 80 includes a thimble sleeve 81 and a mandrel 82, and a replaceable thimble head 821 is disposed at the top end of the mandrel 82, the difference between the alternative movable thimble 80 and the fixed movable thimble 70 is that the thimble head 821 can be replaced, and the mandrel 82 is provided with an insertion hole 822 for inserting various thimbles 821 with different shapes, such as various tapered thimble heads 821 of standard type, slender type, umbrella type, etc.
When the existing ejector pin is used, the tolerance of center deflection of a machined object, particularly the tolerance of center deflection of a cast part and a forged part is large, so that the ejector pin cannot be completely aligned with the center of the machined object, the ejector pin can deflect to tightly push the machined object, cutter jump is easily caused, unstable cutting machining can be caused, and the machining precision is influenced.
Disclosure of Invention
The invention aims to solve the problems that the existing thimble cannot align the center due to the fact that a machined object has a tolerance of center deflection when in use, so that the cutting processing is unstable and the service life of a thimble bearing and a lathe tailstock is influenced.
The invention provides a thimble device with a head capable of automatically deflecting, comprising:
a top center handle, a head part is formed at the top end of the top center handle, a tapered handle part is formed at the lower side of the head part, a combination part is arranged at the axis position of the top surface of the head part, and the combination part is a circular column body which is convexly arranged along the axis direction;
a head sliding part which is correspondingly and slidably arranged at the head of the core pushing handle and comprises a sliding part, a clamping part, a fixing part and a needle pushing head; the sliding part is connected with the combining part in a circling sliding way and in a concave-convex way by the circumference, the sliding part is provided with a disc part, a sleeving part and a movable hole, the disc part forms a disc body with the diameter close to the head part at the bottom of the sliding part, the sleeving part is positioned at the axis position of the disc part and protrudes along the axis direction, the movable hole penetrates through the sleeving part and the axis position of the disc part, the sliding part is correspondingly sleeved on the combining part by the movable hole, and the diameter of the movable hole is larger than that of the combining part, so that an annular movable distance is formed between the sliding part and the combining part; the fixing piece penetrates through the clamping piece and is connected to the combining part; the clamping piece is clamped above the sliding piece; the thimble head is detachably and concavely combined with the sleeving part of the sliding part.
The thimble device with the head capable of automatically deflecting comprises a cylinder, a thimble portion integrally formed at the top of the cylinder, and a sleeve hole formed in the cylinder, wherein the thimble is correspondingly connected to the sleeve portion of the sliding member through the sleeve hole.
The thimble device with the head capable of automatically deflecting comprises a cylinder, a thimble portion detachably connected to the cylinder, and a fitting hole formed in the cylinder, wherein the thimble is correspondingly connected to the sleeve portion of the sliding member through the fitting hole, and the cylinder and the thimble portion are engaged with each other in a taper fit manner.
In the above-mentioned thimble device with a head capable of automatically deflecting, the thimble handle is a thimble handle of a fixed thimble.
In the above-mentioned thimble device with a head capable of automatically deflecting, the thimble handle is a movable thimble handle.
The invention also provides another thimble device with an automatically deflected head part, which comprises
A top center handle, a head part is formed at the top end of the top center handle, a tapered handle part is formed at the lower side of the head part, and a combination part is arranged at the axis position on the top surface of the head part;
a head sliding part which is correspondingly and slidably arranged at the head of the ejector core handle and comprises a sliding part, a clamping part, a fixed part, a second sliding part, an ejector head, a second clamping part and a second fixed part; the sliding part is provided with a disc part, a sleeving part and a movable hole, the disc part forms a disc body with the diameter close to that of the head part at the bottom of the sliding part, the sleeving part is positioned at the axis position of the disc part and protrudes along the axis direction, the movable hole penetrates through the sleeving part and the axis position of the disc part, the sliding part is correspondingly sleeved on the combining part through the movable hole, and the diameter of the movable hole is larger than that of the combining part, so that an annular movable distance is formed between the sliding part and the combining part; the fixing piece penetrates through the clamping piece and is connected to the combining part; the clamping piece is clamped above the sliding piece; the second sliding part is connected with the sleeving part of the sliding part and is provided with a second sleeving part arranged at the axis position of the second sliding part; the thimble head is connected with the second sleeving part of the second sliding part in a circumferentially circumambulated sliding manner and in a concave-convex manner; the second fixing piece penetrates through the second clamping piece and is correspondingly connected to the second combining part; the second clamping piece is clamped above the second sliding piece.
The second sliding member has a second engaging portion, a second disc portion and a second engaging portion, the second engaging portion is cylindrical and forms a engaging hole therein, the engaging hole is capable of engaging with the engaging portion of the sliding member, the second disc portion is located at the top of the second engaging portion, the second engaging portion protrudes from the axis of the second disc portion, the thimble head is engaged with the second engaging portion through the engaging hole, the diameter of the engaging hole is larger than the outer diameter of the second engaging portion, and an annular space is formed between the thimble head and the second engaging portion of the second sliding member for circumferential movement.
In the above-mentioned thimble device with a head capable of automatically deflecting, the thimble handle is a thimble handle of a fixed thimble.
In the above-mentioned thimble device with a head capable of automatically deflecting, the thimble handle is a movable thimble handle.
The invention uses the thimble device with the head capable of automatically deflecting, and the obtained effect improvement comprises
1. The invention ensures that the head sliding piece can automatically slide and deflect in a circumferential circling way by the space formed between the head sliding piece and the combining part of the ejector pin handle to balance and compensate the central deflection tolerance generated during the clamping of the processed object, can ensure that the ejector pin can completely align to the center of the processed object, cannot cause the deflection of the ejector pin, and further prolongs the service life of the ejector pin bearing and the lathe tailstock.
2. The ejector pin can be completely aligned with the center of a machined object, so that the ejector pin cannot deflect, the machined object can be effectively ejected tightly without generating cutter jump, and the aim of stably cutting and machining is fulfilled.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is an external view of a first preferred embodiment of the present invention;
FIG. 2 is an exploded view of a first preferred embodiment of the present invention;
FIG. 3 is an exploded view of the head slider of the first preferred embodiment of the present invention in conjunction with a double-tapered tip;
FIG. 4 is an exploded view of the head slider of the first preferred embodiment of the present invention in conjunction with an umbrella tip;
FIG. 5 is an exploded view of a second preferred embodiment of the present invention;
FIG. 6 is an exploded view of a head slider with a double-tapered tip in accordance with a second preferred embodiment of the present invention;
FIG. 7 is an exploded view of a head slider with an umbrella tip according to a second preferred embodiment of the present invention;
FIG. 8 is an external view of a third preferred embodiment of the present invention;
FIG. 9 is an external view of a fourth preferred embodiment of the present invention;
FIG. 10 is an external view of a fifth preferred embodiment of the present invention;
FIG. 11 is an exploded view of a fifth preferred embodiment of the present invention;
FIG. 12 is an external view of a conventional fixed thimble;
FIG. 13 is an external view of a conventional fixed movable thimble;
fig. 14 is an external view of a conventional replacement type movable thimble.
Wherein the reference numerals
10. 10F, 10G and 10H mandrel handle
11 head 110 junction
111 screw hole 12 handle
20. 20A, 20B, 20C, 20F, 20G, 20H head slider
21 slider 211 disk portion
212 sleeve joint part 213 movable hole
22 fastener 221 penetration hole
23 fixing piece
24. 24A, 24B, 24C, 24D, 24E, 24F, 24G and 24H thimble head
241. 241C, cylinder bodies 242, 242C, 242D and 242E thimble parts
243 sleeve hole 244 fastening hole
245 push-out hole 25 fixing bolt
26 second slider 261 second nesting portion
262 second disk portion 263 second coupling portion
27 two snap members 28 second securing member
60 fixed thimble 61 top core handle
610 head 611 handle
612 head 62 nut
70 fixed movable thimble 71 centre sleeve
710 Assembly space 72 mandrel
721 Top needle 73 Upper bearing
74 thrust bearing 75 lower bearing
80 replaceable movable thimble 81 center sleeve
82 mandrel 821 thimble head
822 insertion hole
Detailed Description
So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings, wherein:
the present invention relates to a thimble device with a head capable of automatically deflecting, please refer to the first preferred embodiment of fig. 1 and 2, which comprises a thimble handle 10 and a head sliding part 20.
As shown in fig. 1 and 2, the top core 10 is a top core of a fixed thimble, and is a handle body extending along the front and rear directions, a head 11 is formed at the top end of the top core 10, a tapered handle 12 is formed at the lower side of the head 11, a combining portion 110 is provided at the top surface of the head 11 at the axial position, in this embodiment, the combining portion 110 is a circular column protruding along the axial direction, and a screw hole 111 is provided at the top of the combining portion 110.
As shown in fig. 1 and 2, the head sliding member 20 is disposed and combined with the head 11 of the ejector pin handle 10, and includes a sliding member 21, a locking member 22, a fixing member 23, an ejector pin 24 and two fixing bolts 25; the sliding part 21 has a disc portion 211, a sleeving portion 212 and a movable hole 213, the disc portion 211 forms a disc body with a diameter similar to that of the head portion 11 at the bottom of the sliding part 21, the sleeving portion 212 is located at the axial position of the disc portion 211 and protrudes along the axial direction, the movable hole 213 penetrates through the sleeving portion 212 and the axial position of the disc portion 211, the diameter of the movable hole 213 is larger than that of the combining portion 110, the sliding part 21 is sleeved on the combining portion 110 correspondingly through the movable hole 213, and an annular movable space is formed between the sliding part 21 and the combining portion 110, so that the top surface of the sleeving portion 212 is slightly lower than that of the combining portion 110.
As shown in fig. 1 and 2, the locking member 22 is correspondingly covered on the top of the sliding member 21, the diameter of the bottom of the locking member 22 is larger than the diameter of the movable hole 213, a through hole 221 coaxial with the movable hole 213 is formed at the axial position of the locking member 22, the fixing member 23 is a bolt, one end of the fixing member 23 penetrates into the through hole 221 and is screwed into the screw hole 111, and the end of the fixing member 23, which is not penetrated into the through hole 221, presses against the locking member 22, so that the sliding member 21 is restricted by the locking member 22 and cannot be detached.
As shown in fig. 1 and fig. 2, the thimble head 24 is a standard thimble head, and has a cylindrical barrel 241, a thimble portion 242 located at the top of the barrel 241 and integrally formed with the barrel 241 to be tapered, a sleeve hole 243 formed inside the barrel 241, and two tightening holes 244 opened in the barrel 241 and connected to the sleeve hole 243, wherein the thimble sleeve 241 is correspondingly sleeved on the sleeve portion 212 of the sliding member 21 through the sleeve hole 243, and the two fixing bolts 25 are screwed on the tightening holes 244 and tightened on the periphery of the sleeve portion 212, so that the thimble head 24 can be fixed on the sliding member 21 and can be actuated along with the sliding member 21.
The first preferred embodiment of the present invention is used by fixing the mandrel 10 to a lathe tailstock (not shown), and the needle head 24 of the head sliding piece 20 is correspondingly abutted against a working object (not shown) on a lathe (not shown), because the workpiece has a central deflection tolerance, the head sliding piece 20 can automatically slide and deflect in a circumferential circumambulation way by virtue of the distance formed between the head sliding piece 20 and the combining part 11 of the ejector pin handle 10 so as to balance and compensate the central deflection tolerance generated when the workpiece is clamped, the invention can completely align to the center of the workpiece without causing the ejector pin deflection, because the thimble head 24 can be perfectly aligned with the center of the processed object, the thimble head 24 will not cause deflection, the workpiece can be more effectively pushed tightly without generating cutter jump, thereby achieving the purpose of stable cutting processing.
As shown in fig. 3 and 4, the head sliders 20A and 20B have different shapes, the top end of the thimble head 24A of the head slider 20A has a biconical tip cone shape, the top end of the thimble head 24B of the head slider 20B has an umbrella-like thimble shape, and both the head sliders 20A and 20B can be replaced and mounted on the thimble handle 10 to achieve different processing purposes.
A second preferred embodiment of the present invention is shown in fig. 5, which is substantially the same as the first preferred embodiment, except that the ejector pin head 24C of the head slider 20C of the second preferred embodiment is an alternative type ejector pin; the cylinder 241C and the thimble portion 242C are separable, the cylinder 241C and the thimble portion 242C are engaged with each other in a taper fit manner, a push-out hole 245 is formed on the outer circumference of the cylinder 241C, the push-out hole 245 is used for a hand tool to insert a hand tool to separate the thimble portion 242C from the cylinder 241C, preferably, the thimble portion 242C is in a standard type of spike taper, and the second preferred embodiment has the same use manner as the first preferred embodiment except that the thimble head 24C is a replacement type of spike.
As shown in fig. 6 and 7, the thimble heads 24D and 24E are replaceable thimbles with different shapes, as shown in fig. 6, the thimble portion 242D of the thimble head 24D has a double-cone-shaped thimble-tip-cone shape and is detachably coupled to the barrel 241D, as shown in fig. 7, the thimble portion 242E of the thimble head 24E has an umbrella-like thimble-tip-cone shape and is detachably coupled to the barrel 241D, the thimble portions 242D and 242E can be directly replaced to cope with the processing of various workpieces, and other using manners are the same as those disclosed in the first and second preferred embodiments and will not be described herein.
A third preferred embodiment of the present invention is shown in fig. 8, which is substantially the same as the first preferred embodiment, except that the mandrel 10F is a movable thimble, the head slide 20F is the same as the head slide 20 of the first embodiment, the thimble head 24F of the head slide 20F can be replaced with a standard, double-cone, umbrella or other tip-cone shape according to the requirement of the object to be processed, and other using and assembling manners are substantially the same as the first preferred embodiment, and will not be described here.
A fourth preferred embodiment of the present invention is shown in fig. 9, which is substantially the same as the second preferred embodiment, except that the ejector handle 10G is a movable ejector handle, the ejector head 24G of the head slider 20G is a replaceable ejector, the ejector head 24G has a cylinder 241G and an ejector pin portion 242G separable from the cylinder 241, and other using and assembling manners are substantially the same as those disclosed in the first, second, and third preferred embodiments, and will not be described here.
A fifth preferred embodiment of the present invention is shown in fig. 10 and 11, and is substantially the same as the third and fourth embodiments, except that the ejector handle 10H is a movable ejector pin, and the head slider 20H is a double-deflection ejector pin; the head sliding member 20H further includes a second sliding member 26, a second locking member 27 and a second fixing member 28, in addition to the sliding member 21, the locking member 22, the fixing member 23, the thimble head 24H and the two fixing bolts 25 as the first embodiment.
The sliding member 21, the locking member 22 and the fixing member 23 are mounted on the connecting portion 110 of the top mandrel 10 as described above, the second sliding member 26 is fixed on the sleeve portion 212 of the sliding member 21 by the two fixing bolts 25, and has a second sleeve portion 261, a second disc portion 262 and a second connecting portion 263, the second sleeve portion 261 is cylindrical and forms a sleeve hole 2611 capable of being sleeved with the sleeve portion 212 of the sliding member 21, the second disc portion 262 is located at the top of the second sleeve portion 261, the second connecting portion 263 protrudes from the axial position of the second disc portion 262, and a connecting hole 2631 penetrates through the second connecting portion 263, the thimble head 24H is shaped like an umbrella, wherein the thimble head 24H is sleeved on the second connecting portion 263 through the sleeve hole 243 correspondingly, and the diameter of the sleeve hole is larger than the outer diameter of the second connecting portion 263, an annular space for circumferential movement is formed between the thimble head 24H and the second combining portion 263 of the second sliding member 26, and the top surface of the thimble head 24H is slightly lower than the top surface of the second combining portion 263.
The second locking member 27 and the second fixing member 28 are the same as the locking member 22 and the fixing member 23, the second locking member 27 is correspondingly locked on the top of the second sliding member 26, and the second fixing member 28 penetrates through the second locking member 27 and is correspondingly screwed into the combining hole 2631 of the second combining portion 263, so that the thimble head 24 is restricted by the second locking member 27 and cannot be separated.
The usage of the fifth preferred embodiment is substantially the same as that of the other embodiments, in this embodiment, when the head slider 20H abuts against the workpiece, because the head slider 20H has the structure of both the slider 21 and the second slider 26, the slider 21 can swing around the center shank 10H, and the needle head 24H can swing around the second slider 26, so as to form a usage of double swing type, which is suitable for the workpiece with a larger aperture.
In the use state, the invention can select the shape of the corresponding ejector pin head according to the aperture size or the shape of the processed object, and is not limited to a fixed ejector handle or a movable ejector handle, but the connection mode of the middle head sliding part and the ejector handle is not limited to the concave-convex matching mode disclosed in the embodiment, and can also be in a state of opposite concave-convex, and the design of the invention is very flexible and convenient in use.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides a thimble device that head can automatic beat which characterized in that includes:
a top center handle, a head part is formed at the top end of the top center handle, a tapered handle part is formed at the lower side of the head part, a combination part is arranged at the axis position of the top surface of the head part, and the combination part is a circular column body which is convexly arranged along the axis direction;
a head sliding part which is correspondingly and slidably arranged at the head of the center-pushing handle and comprises a sliding part, a clamping part, a fixing part and a needle-pushing head; wherein,
the sliding part is connected with the combining part in a circling sliding way in a circumferential way and in a concave-convex way, the sliding part is provided with a disc part, a sleeving part and a movable hole, the disc part forms a disc body with the diameter close to that of the head part at the bottom of the sliding part, the sleeving part is positioned at the axis position of the disc part and protrudes along the axis direction, the movable hole penetrates through the sleeving part and the axis position of the disc part, the sliding part is sleeved on the combining part correspondingly through the movable hole, and the diameter of the movable hole is larger than that of the combining part, so that an annular movable distance is formed between the sliding part and the combining part;
the fixing piece penetrates through the clamping piece and is connected to the combining part;
the clamping piece is clamped above the sliding piece;
the thimble head can be detachably and concavely combined with the sleeving part of the sliding part.
2. The ejector pin device with automatically deflectable head portion according to claim 1, wherein the ejector pin head comprises a barrel, an ejector pin portion integrally formed with the barrel at a top of the barrel, and a engaging hole formed in the barrel, the ejector pin head being correspondingly connected to the engaging portion of the sliding member through the engaging hole.
3. The ejector pin device with automatically deflectable head portion according to claim 1, wherein the ejector pin head comprises a cylinder, an ejector pin portion detachably connected to the cylinder, and a fitting hole formed in the cylinder, the ejector pin head is correspondingly connected to the sleeve portion of the sliding member through the fitting hole, and the cylinder and the ejector pin portion are engaged with each other in a taper fit manner.
4. The ejector pin device with the automatically deflectable head portion according to any one of claims 1 to 3, wherein the ejector pin handle is a fixed ejector pin.
5. The ejector pin device with the automatically swinging head part according to any one of claims 1 to 3, wherein the ejector pin handle is a movable ejector pin.
6. The utility model provides a thimble device that head can automatic beat which characterized in that includes:
a top center handle, a head part is formed at the top end of the top center handle, a tapered handle part is formed at the lower side of the head part, and a combination part is arranged at the axis position on the top surface of the head part;
a head sliding part which is correspondingly and slidably arranged at the head of the ejector core handle and comprises a sliding part, a clamping part, a fixing part, a second sliding part, an ejector head, a second clamping part and a second fixing part; wherein,
the sliding part is provided with a disc part, a sleeving part and a movable hole, the disc part forms a disc body with the diameter close to that of the head part at the bottom of the sliding part, the sleeving part is positioned at the axis position of the disc part and extends convexly along the axis direction, the movable hole penetrates through the sleeving part and the axis position of the disc part, the sliding part is correspondingly sleeved on the combining part through the movable hole, and the diameter of the movable hole is larger than that of the combining part, so that an annular movable interval is formed between the sliding part and the combining part;
the fixing piece penetrates through the clamping piece and is connected to the combining part;
the clamping piece is clamped above the sliding piece;
the second sliding part is connected with the sleeving part of the sliding part and is provided with a second sleeving part arranged at the axis position of the second sliding part;
the thimble head is connected with the second sleeving part of the second sliding part in a circumferentially circumambulated sliding manner and in a concave-convex manner;
the second fixing piece penetrates through the second clamping piece and is correspondingly connected with the second sliding piece;
the second clamping piece is clamped above the second sliding piece.
7. The ejector pin device with the head capable of automatically deflecting according to claim 6, wherein the second sliding member has a second engaging portion, a second disk portion and a second engaging portion, the second engaging portion is cylindrical and forms a engaging hole therein, the engaging hole is capable of engaging with the engaging portion of the sliding member, the second disk portion is located on the top of the second engaging portion, the second engaging portion protrudes from the axial center of the second disk portion, the ejector pin is engaged with the second engaging portion through the engaging hole, the diameter of the engaging hole is larger than the outer diameter of the second engaging portion, and an annular space is formed between the ejector pin and the second engaging portion of the second sliding member for circumferential movement.
8. The ejector pin device with the automatically deflectable head portion according to claim 6 or 7, wherein the ejector pin handle is a fixed ejector pin.
9. The ejector pin device with automatically swinging head according to claim 6 or 7, wherein the ejector pin handle is a movable ejector pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465666.4A CN105397114B (en) | 2014-09-12 | 2014-09-12 | Head can beat automatically push pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465666.4A CN105397114B (en) | 2014-09-12 | 2014-09-12 | Head can beat automatically push pin device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105397114A CN105397114A (en) | 2016-03-16 |
| CN105397114B true CN105397114B (en) | 2017-09-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410465666.4A Expired - Fee Related CN105397114B (en) | 2014-09-12 | 2014-09-12 | Head can beat automatically push pin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105397114B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3156145A (en) * | 1963-04-30 | 1964-11-10 | Richard G Schultz | Tailstock center |
| US3630112A (en) * | 1969-09-04 | 1971-12-28 | Kenneth J Sudholt | Machine tool center |
| DE2461337A1 (en) * | 1974-12-24 | 1976-07-08 | Alfred Ellwanger | Live centre with radial adjustment - has housing bore and shank adjusted eccentrically relative to each other |
| DE19618036A1 (en) * | 1995-05-13 | 1996-11-14 | Tseng Hsien Chang | Centering pin for lathe |
| CN102225472A (en) * | 2011-06-08 | 2011-10-26 | 上海三一精机有限公司 | Adjustment mechanism for center of centre sleeve |
-
2014
- 2014-09-12 CN CN201410465666.4A patent/CN105397114B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3156145A (en) * | 1963-04-30 | 1964-11-10 | Richard G Schultz | Tailstock center |
| US3630112A (en) * | 1969-09-04 | 1971-12-28 | Kenneth J Sudholt | Machine tool center |
| DE2461337A1 (en) * | 1974-12-24 | 1976-07-08 | Alfred Ellwanger | Live centre with radial adjustment - has housing bore and shank adjusted eccentrically relative to each other |
| DE19618036A1 (en) * | 1995-05-13 | 1996-11-14 | Tseng Hsien Chang | Centering pin for lathe |
| CN102225472A (en) * | 2011-06-08 | 2011-10-26 | 上海三一精机有限公司 | Adjustment mechanism for center of centre sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105397114A (en) | 2016-03-16 |
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