CN108500427B - Automatic stud spot welding machine - Google Patents
Automatic stud spot welding machine Download PDFInfo
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- CN108500427B CN108500427B CN201810243313.8A CN201810243313A CN108500427B CN 108500427 B CN108500427 B CN 108500427B CN 201810243313 A CN201810243313 A CN 201810243313A CN 108500427 B CN108500427 B CN 108500427B
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- assembly
- circular tube
- electrode rod
- cylinder
- buffering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/20—Stud welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to an automatic stud spot welding machine, which comprises a support platform, a ball buffering assembly for supporting a circular tube, a welding machine main body assembly, a circular tube rolling assembly for driving the circular tube to roll and axially move, and a movable electrode rod assembly, wherein the ball buffering assembly, the welding machine main body assembly, the circular tube rolling assembly and the movable electrode rod assembly are all arranged on the support platform; the welding machine main part subassembly is including fixed arm, fixing base, electrode rod, conducting rod, welding nail chuck and red copper connection water piece, on the fixed arm installation fixing base, the fixing base was installed on support platform, and the welding chuck is connected with red copper and is crossed the water piece and install on the fixed arm, and electrode rod and conducting rod activity are arranged red copper in and are connected water piece in to be connected with the front end of conducting rod and be connected, and the conducting rod is driven by first cylinder, presss from both sides tight double-screw bolt together with the electrode rod through welding nail chuck.
Description
Technical Field
The invention belongs to the field of mechanical welding equipment, and particularly relates to an automatic stud spot welding machine, in particular to a spot welding machine suitable for welding a stud station on the inner wall of a narrow circular pipe.
Background
Welding is an important and common process for firmly joining metals, and spot welding, one of them, is widely used in the manufacturing industry. The two metals are melted and fused by clamping the two metals and instantly passing large current in a small contact surface, and the effect of fixing after cooling is achieved. The spot welding process does not damage the internal structure of the workpiece, and other welding materials are not required to be added.
In the solar field, there is a circular tube, because the length of the circular tube is very long, and the space in the circular tube is also very narrow. A very large number of studs need to be welded inside to absorb the heat energy of the sun. In the traditional welding, a round pipe is cut into two halves and then welded, and due to the fact that the arc surface is welded, a stud is prone to being placed askew carelessly, and accordingly welding is not firm. And after the stud is welded on the cut circular tube, the circular tube is folded and welded, the operation is troublesome, and the welding is not firm.
Because the round pipe is internally provided with water generally, the heat dissipation is reduced, the round pipe is welded after being cut, and when water is added into the round pipe, the closed welding position of the round pipe is easy to rust for a long time, so that the welding position leaks water.
Disclosure of Invention
The invention aims to provide an automatic stud spot welding machine which can weld the inner wall of a narrow space in a circular tube, has the functions of automatic nail feeding, automatic welding, automatic moving and the like, and has reliable welding quality, attractive appearance and no splashing.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the automatic stud spot welding machine is used for welding the inner wall of a circular tube and is characterized by at least comprising a support platform, a ball buffering assembly for supporting the circular tube, a welding machine main body assembly, a circular tube rolling assembly for driving the circular tube to roll and axially move and a movable electrode rod assembly, wherein the ball buffering assembly, the welding machine main body assembly, the circular tube rolling assembly and the movable electrode rod assembly are all arranged on the support platform;
the welding machine main body assembly comprises a fixed arm, a fixed seat, an electrode rod, a conductive rod, a welding nail chuck and a red copper connection water passing block, wherein the fixed arm is arranged on the fixed seat, the fixed seat is arranged on a support platform, the welding nail chuck and the red copper connection water passing block are arranged on the fixed arm, the electrode rod and the conductive rod are movably arranged in the red copper connection water passing block and are connected with the front end of the conductive rod, the conductive rod is driven by a first cylinder and clamps a stud together with the electrode rod through the welding nail chuck;
the movable electrode rod assembly comprises a movable electrode rod, a special electrode cap and a second cylinder, the special electrode cap is installed on the movable electrode rod, the movable electrode rod is connected to a push rod of the second cylinder, and the second cylinder is installed on the support platform.
In one embodiment of the above technical scheme, pipe rolling subassembly is including pressing from both sides three-jaw cylinder, step motor and hold-in range module, the three-jaw cylinder passes through the shaft joint and connects on step motor, and step motor passes through the motor connecting plate and installs on hold-in range module, and the during operation three-jaw cylinder presss from both sides tight pipe, and step motor drives three-jaw cylinder and pipe and rotates, and hold-in range module drives step motor, three-jaw cylinder and pipe rectilinear movement together.
In an embodiment of the above technical solution, the synchronous belt module includes a synchronous belt, a slide seat, a rail, a belt pulley and a servo motor, the stepping motor is installed on the slide seat of the synchronous belt module through a motor connecting plate, the slide seat is movably disposed on the rail and connected with the synchronous belt, and the servo motor drives the belt pulley to rotate and drives the slide seat to move linearly.
In an embodiment of the above technical solution, a nail feeding channel is arranged in the fixing arm of the main body assembly of the welding machine and the welding lamp chuck, an inlet end of the nail feeding channel is communicated with the nail feeding device, and the electrode rod is arranged at an outlet end of the nail feeding channel.
In an embodiment of the foregoing technical solution, the welding device further includes a transformer control box assembly, where the transformer control box assembly includes a transformer assembly and an electrical control box, where the transformer assembly is used to convert current and voltage, and the electrical control box is used to provide current and voltage for welding.
In an embodiment of the above technical solution, the red copper connection water passing block of the welder main body assembly is installed on the fixing arm, the red copper connection water passing block is connected with the copper belt through the copper belt connecting block, and the copper belt is electrically connected to the positive electrode output end of the transformer control box assembly.
In an embodiment of the above technical solution, the electrode rod of the movable electrode rod assembly is connected to the copper strip through a copper strip connecting block, and the copper strip is electrically connected to the negative electrode output end of the transformer control box assembly.
In one embodiment of the above technical scheme, the ball buffering assembly comprises a plurality of buffering parts installed on the support platform, wherein each buffering part comprises a universal ball, a buffering block and a buffering spring, the universal ball is arranged on the buffering block, the buffering block is connected to the support platform through the buffering spring, and the buffering parts are used for buffering the pressure of the round pipe and supporting the round pipe.
In an embodiment of the above technical scheme, the hydraulic support further comprises a balance mechanism assembly, the balance mechanism assembly comprises a circular tube pressing block and a third cylinder, the third cylinder is installed on the support platform, and the circular tube pressing block is connected to a push rod of the third cylinder through a cylinder connecting block.
In an embodiment of the above technical solution, the support platform includes a movable arm, the ball buffer assembly and the fixing seat of the welder body assembly are mounted on the movable arm, the first cylinder is mounted on the fixing seat, and the second cylinder is mounted on the movable arm.
Drawings
Fig. 1 is a schematic view of the overall structure of a spot welder of the embodiment.
Fig. 2 is a partial structural schematic view of the spot welder of the embodiment.
Fig. 3 is an enlarged view of a portion of the structure of fig. 2.
Fig. 4 is a partial sectional view of spot welding in the embodiment.
Fig. 5 is a schematic view of the installation of the conducting rod and the electrode rod in the embodiment.
FIG. 6 is a schematic diagram of the pipe rolling assembly of the example embodiment.
Detailed Description
For further understanding of the present invention, the technical solutions of the present invention are described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1-6, the present embodiment is an automatic stud spot welding machine, which is used for welding the inner wall of a circular tube 80, and includes a support platform, a ball buffer assembly for supporting the circular tube 80, a welder main assembly, a circular tube rolling assembly for driving the circular tube to roll and move axially, a movable electrode rod assembly, a transformer control box assembly 60, and a balance mechanism assembly, wherein the ball buffer assembly, the welder main assembly, the circular tube rolling assembly, and the movable electrode rod assembly are all mounted on the support platform.
The support platform comprises a workbench 101, a movable arm 102 and a support, wherein the movable arm and the support are installed on the workbench, the ball buffer assembly, the welding machine main body assembly and the movable electrode rod group are all installed on the movable arm, the support is not shown in the figure, the support can be designed according to the situation, the support is mainly used for fixedly supporting the circular tube rolling assembly and the balance mechanism assembly, and the transformer control box assembly is installed on the welding machine main body assembly or the workbench.
The welding machine main body assembly mainly comprises a fixed arm 201, a fixed seat 202, an electrode rod 203, a conducting rod 204, a welding nail chuck 205 and a red copper connecting water passing block 206, the fixed seat is installed on the movable arm, the fixed arm is installed on the fixed seat, the welding nail chuck and the red copper connecting water passing block are installed on the fixed arm, the electrode rod and the conducting rod are movably arranged in the red copper connecting water passing block and are connected with the front end of the conducting rod, the conducting rod is driven by a first air cylinder 207 and pushes the electrode rod to do linear motion, a stud 90 is clamped by the welding nail chuck 205 and the electrode rod 203 acting together, a circular groove is formed in the front end of the electrode rod and the welding nail chuck, and the stud can be clamped by just one clamping hole after being matched.
The water block 206 is connected with the red copper, a water channel is arranged in the water block for heat dissipation, the water block is connected with the copper strip 209 through a copper strip connecting block 208, the copper strip is electrically connected with the positive electrode output end of the transformer control box assembly, and welding current of the transformer control box assembly reaches the stud 90 through the copper strip 209, the copper strip connecting block 208, the red copper connecting water block 206, the conducting rod 204 and the electrode rod 203 in sequence.
In order to achieve automatic stud conveying, a stud conveying channel 210 is arranged in the fixing arm and the welding lamp chuck, the stud conveying channel is composed of a linear stud conveying channel of the fixing arm and a curved stud conveying channel in the welding nail chuck, an inlet end of the stud conveying channel is communicated with a stud conveying device, an electrode rod is arranged at an outlet end of the stud conveying channel, the stud conveying device can select a vibration screening disc and a conveying pipe, the conveying pipe is connected to an inlet of the stud conveying channel, and the stud is clamped at the outlet by the welding nail chuck and the electrode rod in a matched mode after passing through the stud conveying channel. In addition, the stud can be placed by manual operation without a nail feeding channel.
The movable electrode rod assembly comprises a movable electrode rod 501, a special electrode cap 502 and a second air cylinder 503, the special electrode cap is installed on the movable electrode rod, the movable electrode rod is connected to a push rod of the second air cylinder, the second air cylinder is installed on a movable arm of the support platform, the movable electrode rod is connected with a second copper strip 505 through a second copper strip connecting block 504, and meanwhile, the second copper strip is electrically connected to the negative electrode output end of the transformer control box assembly through a second red copper connecting plate 506. The welding current flows back to the transformer control box assembly through the movable electrode rod 501, the second copper strip connecting block 504, the second copper strip 505 and the red copper connecting plate 506 in sequence.
The transformer control box assembly comprises a transformer assembly and an electric control box, wherein the transformer assembly is used for converting current and voltage, and the electric control box is used for providing current and voltage for welding.
Pipe rolling subassembly is including pressing from both sides three-jaw cylinder 401, step motor 402 and hold-in range module 403, and the three-jaw cylinder passes through the shaft joint and connects on step motor, and step motor passes through motor connecting plate 404 to be installed on the hold-in range module, and the during operation three-jaw cylinder stretches into the intraductal tight pipe that presss from both sides of pipe, and step motor drives three-jaw cylinder and pipe and rotates together, and the hold-in range module drives step motor, three-jaw cylinder and pipe 80 linear motion together.
As shown in fig. 6, the timing belt module 403 includes a timing belt 4031, a carriage 4032, a rail 4033, a belt pulley and a servo motor 4035, the stepping motor is mounted on the carriage of the timing belt module through a motor connecting plate 404, the carriage is movably disposed on the rail and connected to the timing belt, and the servo motor drives the belt pulley to rotate and makes the timing belt drive the carriage to move linearly.
The ball buffering assembly comprises a plurality of buffering pieces arranged on the support platform, wherein each buffering piece comprises a universal ball 301, a buffering block 302 and a buffering spring 303, the universal ball is arranged on the buffering block, the buffering block is connected to a movable arm of the support platform through the buffering spring, and the buffering pieces are used for buffering the pressure of the round pipe and supporting the round pipe 80.
The balance mechanism assembly mainly comprises a round pipe pressing block 701 and a third air cylinder 702, the third air cylinder is installed on a support of the support platform, and the round pipe pressing block is connected to a pushing rod of the third air cylinder through an air cylinder connecting block.
Its theory of operation is, at first, through hold-in range module, put the ball buffering subassembly with the pipe on to in welder main part subassembly stretches into the pipe, the pipe will be by jack-up on ball buffering subassembly, passes through the balance mechanism subassembly immediately, and the action of third cylinder is from slight downward extrusion above the pipe, thereby makes the pipe balanced.
Secondly, after the stud is selected by the stud feeding device, the stud is fed to a fixing arm of the welding machine main body assembly through the conveying pipe and is fed to the stud feeding channel and continuously moves to the welding stud chuck, and the stud is clamped by the action of the first cylinder and the action of parts such as the conducting rod, the electrode rod and the like which are connected with the conducting rod. And the second cylinder acts to move the movable electrode rod upwards, so that the special electrode cap is in contact connection with the outer wall of the circular tube, the stud is in contact with the inner wall of the circular tube, and the stud is electrified and welded.
And then, after welding, pressing the circular tube downwards through the action of the third air cylinder again to enable the stud to leave the clamping hole of the welding nail chuck, then rotating the stud by 30 degrees through the stepping motor, starting to weld the next stud, sequentially welding a circle, and after 12 studs are welded, driving the circular tube rolling assembly to move by 10mm through the synchronous belt, and starting to weld the 12 studs of the next circle until the whole circular tube is fully welded.
Although a preferred embodiment of the present invention has been described in detail, it should be understood that the invention is not limited thereto, and that various equivalent modifications or substitutions can be made by those skilled in the art without departing from the spirit of the present invention, and the equivalents and substitutions are included in the scope of the present invention as defined by the appended claims.
Claims (10)
1. An automatic stud spot welding machine is used for stud welding of the inner wall of a circular tube and is characterized by at least comprising a support platform, a ball buffering assembly for supporting the circular tube, a welding machine main body assembly, a circular tube rolling assembly for driving the circular tube to roll and axially move and a movable electrode rod assembly, wherein the ball buffering assembly, the welding machine main body assembly, the circular tube rolling assembly and the movable electrode rod assembly are all arranged on the support platform;
the welding machine main body assembly comprises a fixed arm, a fixed seat, an electrode rod, a conductive rod, a welding nail chuck and a red copper connection water passing block, wherein the fixed arm is arranged on the fixed seat;
the movable electrode rod assembly comprises a movable electrode rod, a special electrode cap and a second cylinder, the special electrode cap is installed on the movable electrode rod, the movable electrode rod is connected to a push rod of the second cylinder, and the second cylinder is installed on the support platform.
2. The automatic stud spot welding machine according to claim 1, wherein the circular tube rolling assembly comprises a three-jaw cylinder, a stepping motor and a synchronous belt module, the three-jaw cylinder is connected to the stepping motor through a coupling, the stepping motor is mounted on the synchronous belt module through a motor connecting plate, the three-jaw cylinder clamps the circular tube during operation, the stepping motor drives the three-jaw cylinder and the circular tube to rotate, and the synchronous belt module drives the stepping motor, the three-jaw cylinder and the circular tube to move linearly together.
3. The automatic stud spot welding machine according to claim 2, wherein the synchronous belt module comprises a synchronous belt, a slide carriage, a rail, a belt pulley and a servo motor, the stepping motor is mounted on the slide carriage of the synchronous belt module through a motor connecting plate, the slide carriage is movably disposed on the rail and connected with the synchronous belt, and the servo motor drives the belt pulley to rotate and enables the synchronous belt to drive the slide carriage to move linearly.
4. The automated stud spot welder according to claim 1, wherein the stationary arm of the welder body assembly and the welding lamp collet are provided with a nail feeding channel, an inlet end of the nail feeding channel is in communication with a nail feeding device, and the electrode rod is disposed at an outlet end of the nail feeding channel.
5. The automated stud spot welder according to claim 1 further comprising a transformer control box assembly including a transformer assembly for converting current to voltage and an electrical control box for providing current to voltage for welding.
6. The automatic stud spot welding machine according to claim 5, wherein the red copper connection water passing block of the welder body assembly is mounted on the fixing arm, the red copper connection water passing block is connected with the copper strip through a copper strip connecting block, and the copper strip is electrically connected to the positive electrode output end of the transformer control box assembly.
7. The automated stud spot welder according to claim 5, wherein the electrode rod of the movable electrode rod assembly is connected to a copper strip via a copper strip connection block, and wherein the copper strip is electrically connected to the negative electrode output of the transformer control box assembly.
8. The automated stud spot welder according to claim 1, wherein the ball buffering assembly comprises a plurality of buffering members mounted on the support platform, wherein each buffering member comprises a universal ball, a buffering block and a buffering spring, the universal ball is disposed on the buffering block, the buffering block is connected to the support platform through the buffering spring, and the buffering members are used for buffering the pressure of the circular tube and supporting the circular tube.
9. The automatic stud spot welding machine according to claim 1, further comprising a balance mechanism assembly, wherein the balance mechanism assembly comprises a circular tube pressing block and a third cylinder, the third cylinder is mounted on the support platform, and the circular tube pressing block is connected to a push rod of the third cylinder through a cylinder connecting block.
10. The automated stud spot welder according to claim 1 wherein the support platform includes a boom, the ball dampening assembly and the fixed mount of the welder body assembly are mounted on the boom, the first cylinder is mounted on the fixed mount, and the second cylinder is mounted on the boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810243313.8A CN108500427B (en) | 2018-03-23 | 2018-03-23 | Automatic stud spot welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810243313.8A CN108500427B (en) | 2018-03-23 | 2018-03-23 | Automatic stud spot welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108500427A CN108500427A (en) | 2018-09-07 |
| CN108500427B true CN108500427B (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810243313.8A Active CN108500427B (en) | 2018-03-23 | 2018-03-23 | Automatic stud spot welding machine |
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| CN (1) | CN108500427B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3666910A (en) * | 1971-02-03 | 1972-05-30 | Quanta Welding Co | Method of solid state bonding an article to a tube surface |
| JP2006305575A (en) * | 2005-04-26 | 2006-11-09 | Masuyama Seisakusho:Kk | Apparatus for welding stud |
| CN106002025A (en) * | 2016-06-23 | 2016-10-12 | 宁波市镇海海博焊机制造有限公司 | Special welding system for handle screw of non-stick pan |
| JP2017113777A (en) * | 2015-12-24 | 2017-06-29 | トヨタ自動車株式会社 | Stud retention and discharge device in stud welding machine |
| CN107020442A (en) * | 2017-05-26 | 2017-08-08 | 株洲日望精工有限公司 | Application of the arc pulling type stud welding technology in terms of tie pole is welded |
-
2018
- 2018-03-23 CN CN201810243313.8A patent/CN108500427B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3666910A (en) * | 1971-02-03 | 1972-05-30 | Quanta Welding Co | Method of solid state bonding an article to a tube surface |
| JP2006305575A (en) * | 2005-04-26 | 2006-11-09 | Masuyama Seisakusho:Kk | Apparatus for welding stud |
| JP2017113777A (en) * | 2015-12-24 | 2017-06-29 | トヨタ自動車株式会社 | Stud retention and discharge device in stud welding machine |
| CN106002025A (en) * | 2016-06-23 | 2016-10-12 | 宁波市镇海海博焊机制造有限公司 | Special welding system for handle screw of non-stick pan |
| CN107020442A (en) * | 2017-05-26 | 2017-08-08 | 株洲日望精工有限公司 | Application of the arc pulling type stud welding technology in terms of tie pole is welded |
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| Publication number | Publication date |
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| CN108500427A (en) | 2018-09-07 |
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