Auxiliary device for replacing electrode tip of servo welding gun

Abstract

The invention discloses an auxiliary device for replacing an electrode tip of a servo welding gun, which belongs to the technical field of welding equipment and comprises a shell fixed on a frame through a connecting plate. The two replacing assemblies are symmetrically arranged on the two sides of the shell correspondingly, and each replacing assembly comprises a clamping module used for clamping an electrode tip and a supply module used for conveying the electrode tip. The clamping module and the supply module are symmetrically arranged on the two sides of the shell, two electrode tips on the servo welding gun can be replaced at the same time, the replacement time is shortened, the chuck can play a role in clamping an old electrode tip on the servo welding gun and can also be matched with the supply module, automatic feeding is achieved, a new electrode tip is clamped, and the servo welding gun can be pressed in for installation; manual intervention is not needed, and replacement speed is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to an auxiliary device for replacing an electrode head of a servo welding gun. Background Art

[0002] In the fields of automobile manufacturing, sheet metal processing, etc., servo welding guns are the core equipment of automated welding production lines. Their electrode heads are subjected to high current shocks and mechanical wear for a long time. An oxide layer and deformation will gradually form on the working end face of the electrode head, resulting in a decline in welding quality. Therefore, after a period of use, the electrode head needs to be replaced or sharpened. Existing electrode head replacement mainly relies on manual operation. The operator needs to manually remove the old electrode head, pick up the new electrode head from the material box, align it with the electrode head mounting column on the clamp of the servo welding gun, and press the electrode head in. A single replacement is relatively time-consuming. For servo welding guns with dual electrode heads, the operation needs to be repeated twice, which further increases the replacement time. At the same time, the operator needs to enter the working range of the automated robot, which poses certain safety risks. Summary of the Invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an electrode tip replacement auxiliary device for a servo welding gun, which can replace two electrode tips on a servo welding gun at the same time, thereby improving replacement efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides an auxiliary device for replacing an electrode tip of a servo welding gun, comprising:

[0005] A housing, wherein the housing is fixed to the frame via a connecting plate;

[0006] Two sets of replacement components are symmetrically arranged on both sides of the shell, and the replacement components include a clamping module for clamping the electrode head and a supply module for conveying the electrode head.

[0007] Among them, the clamping module includes two chucks, and the upper and lower ends of the chucks are hinged to push rod 1 and push rod 2 through hinge shaft 1 and hinge shaft 2 respectively; when push rod 1 and push rod 2 move synchronously, the chucks are pushed to move, and the two chucks cooperate to clamp or release the electrode head; when push rod 1 moves and push rod 2 does not move, the chucks rotate around hinge shaft 2, and the supply module supplies new electrode heads to the middle of the two chucks.

[0008] Preferably, the clamping module further includes two displacement drive structures, respectively used to drive the two clamps to move; the displacement drive structures include:

[0009] A slide seat, wherein a slide groove is provided on the housing, and the slide seat is slidably installed in the slide groove;

[0010] The screw rod is rotatably mounted in the slide groove and cooperates with the slide seat thread;

[0011] Among them, the push rod 2 is parallel to the screw rod, and the end of the push rod 2 away from the chuck is inserted on the slide seat; the push rod 1 includes a base rod and a connecting rod hinged on the base rod, the connecting rod is hinged to the chuck through the hinge shaft 1, the end of the base rod away from the connecting rod is inserted on the slide seat, and the base rod is parallel to the screw rod; the base rod and the push rod 2 are fixed on the slide seat through an adjustment component.

[0012] Preferably, the adjustment component comprises:

[0013] The adjusting shaft is rotatably mounted on the housing and parallel to the screw;

[0014] A shaft sleeve is sleeved on the adjusting shaft and is driven by a spline with the adjusting shaft. The slide seat is provided with a mounting hole, and the shaft sleeve is rotatably mounted in the mounting hole.

[0015] Among them, two guide grooves are provided on the circumferential surface of the shaft sleeve, and the limiting column 1 and the limiting column 2 are fixed on the base rod and the push rod 2 respectively, and the limiting column 1 and the limiting column 2 are respectively slidably installed in the two guide grooves.

[0016] Preferably, the two guide grooves are guide groove 1 and guide groove 2 respectively, the guide groove 1 includes a stop section 1 and a drive section 1, and the guide groove 2 includes a stop section 2 and a drive section 2;

[0017] Among them, the limit column 1 is slidably installed in the guide groove 1, and the limit column 2 is slidably installed in the guide groove 2; when the adjusting shaft rotates forward, the driving section 1 drives the limit column 1 to move away from the chuck, and the stop section 2 maintains the position of the limit column 2; when the adjusting shaft rotates reversely, the driving section 2 drives the limit column 2 to move away from the chuck, and the stop section 1 maintains the position of the limit column 1.

[0018] Preferably, drive shaft 1 and drive shaft 2 are rotatably mounted on the shell, drive shaft 1 is connected to all adjustment shafts through a belt transmission mechanism, drive shaft 2 is connected to all screw rods through a belt transmission mechanism, and motor 1 for driving drive shaft 1 to rotate and motor 2 for driving drive shaft 2 to rotate are fixed on the shell.

[0019] Preferably, grinding heads are symmetrically rotatably mounted on both sides of the shell, and the grinding heads are provided with grinding grooves that match the ends of the electrode heads.

[0020] Preferably, a drive shaft three is rotatably mounted on the shell, a bevel gear one is fixed to the bottom of the drive shaft three, the shafts of the two grinding heads are collinear and both are fixed with bevel gears two, and the bevel gear one is meshed with the two bevel gears two.

[0021] Preferably, when the two chucks cooperate to clamp the electrode head, the axis of the electrode head is collinear with the axis of the grinding head.

[0022] Preferably, the supply module comprises a feed trough vertically opened on the housing, the cross section of the feed trough is adapted to the electrode head, and the two clamps are located below the bottom outlet of the feed trough;

[0023] When the two clamps rotate around the second hinge shaft, the distance between the tops of the two clamps expands, and the electrode head at the bottom of the feed trough falls between the two clamps.

[0024] Preferably, the chuck is in an arc shape, and the first hinge shaft and the second hinge shaft are rotatably mounted at both ends of the arc.

[0025] The beneficial effects of the present invention are:

[0026] The present invention has symmetrically arranged clamping modules and supply modules on both sides of the housing, which can simultaneously replace the two electrode tips on the servo welding gun, reducing replacement time. The clamping head can not only hold the old electrode tip on the servo welding gun, but also cooperate with the supply module to automatically load and clamp the new electrode tip for press-fit installation of the servo welding gun, without manual intervention, thus improving replacement speed.

[0027] When the chuck of the present invention clamps the new electrode tip, the axis of the new electrode tip is collinear with the axis of the grinding head. The chuck can reduce the clamping force on the electrode tip, so that the servo welding gun can press the end of the new electrode tip against the grinding head. The new electrode tip is pressed onto the servo welding gun. The chuck and the grinding head cooperate to position the new electrode tip, increase the contact area, and reduce damage to the electrode tip during the pressing process.

[0028] The present invention has the dual functions of replacing the electrode head and grinding the electrode head, and can grind two electrode heads on the servo welding gun at the same time, thereby reducing the number of additional equipment, having high functional integration and compact equipment structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A three-dimensional diagram of an electrode tip replacement auxiliary device for a servo welding gun provided by an embodiment of the present invention and the servo welding gun in cooperation.

[0031] Figure 2 A side view of an electrode tip replacement auxiliary device for a servo welding gun provided by an embodiment of the present invention in cooperation with the servo welding gun.

[0032] Figure 3 A front view of a replacement component in an auxiliary device for replacing an electrode tip of a servo welding gun provided by an embodiment of the present invention.

[0033] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0034] Figure 5 A schematic diagram of placing a new electrode tip between two clamps in an electrode tip replacement auxiliary device for a servo welding gun provided by an embodiment of the present invention.

[0035] Figure 6 A three-dimensional diagram of an electrode tip replacement auxiliary device for a servo welding gun provided by an embodiment of the present invention with the protective cover removed.

[0036] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0037] Figure 8 A three-dimensional diagram of a shaft sleeve in an auxiliary device for replacing an electrode tip of a servo welding gun provided in an embodiment of the present invention.

[0038] Figure 9 A top view of an auxiliary device for replacing an electrode tip of a servo welding gun provided in an embodiment of the present invention.

[0039] Figure 10 for Figure 9 Cross-sectional view at AA in the middle.

[0040] Figure 11 for Figure 10 A partial enlarged view of point C in the middle.

[0041] Description of reference numerals:

[0042] 1. Housing, 2. Connecting plate, 3. Chuck, 4. Articulated shaft 1, 5. Articulated shaft 2, 6. Push rod 1, 7. Push rod 2, 8. Slide, 9. Slide, 10. Screw, 11. Base rod, 12. Connecting rod, 13. Adjusting shaft, 14. Bushing, 15. Guide groove 1, 16. Limit column 1, 17. Limit column 2, 18. Stop section 1, 19. Driving section 1, 20. Driving shaft 1, 21. Driving shaft 2, 22. Synchronous belt, 23. Motor 1, 24. Motor 2, 25. Grinding head, 26. Grinding groove, 27. Driving shaft 3, 28. Bevel gear 1, 29. Bevel gear 2, 30. Shaft body, 31. Feed chute, 32. Motor 3, 33. Servo welding gun DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] Example 1:

[0045] like Figures 1 to 11 As shown, embodiment 1 of the present invention provides an auxiliary device for replacing the electrode head of a servo welding gun 33, comprising a rectangular shell 1 and two sets of replacement components symmetrically arranged on the front and rear sides of the shell 1. The two electrode heads on the servo welding gun 33 cooperate with the two replacement components respectively to complete the replacement of the electrode heads. The shell 1 can be bolted to a rack or other supporting platform through a connecting plate 2 to maintain the stability of the entire device during use. Each set of replacement components includes a clamping module and a supply module. Among them, the function of the clamping module is to clamp the old electrode head that needs to be replaced on the servo welding gun 33 (hereinafter referred to as the old electrode head), and to clamp and position the new electrode head to be installed (hereinafter referred to as the new electrode head) for the servo welding gun 33 to be pressed in and installed. The function of the supply module is to transport the new electrode head to the working position of the clamping module.

[0046] like Figures 3 to 5 As shown, the clamping module designed in the present invention includes two opposing clamps 3, two displacement drive structures, and two push rods. The two push rods can be referred to as push rod 1 6 and push rod 2 7, respectively. Each clamp 3 is generally arc-shaped. Each clamp 3 is hinged to push rod 1 6 at the top of the arc via hinge axis 1 4 and to push rod 2 7 at the bottom of the arc via hinge axis 2 5.

[0047] Each chuck 3 is equipped with a displacement drive structure for driving the chuck 3 to move along a specific path. Figure 7 As shown, the housing 1 is provided with a chute 9 corresponding to the displacement path. A slide 8 is slidably mounted within the chute 9. A screw 10 is rotatably mounted within the chute 9. The screw 10 and the slide 8 are threadedly engaged, such that rotation of the screw 10 drives the slide 8 to slide linearly within the chute 9.

[0048] Push rod 2 (7) is arranged parallel to the screw rod 10. Its end facing away from the chuck 3 passes through the slide 8 and can follow the movement of the slide 8. Push rod 1 (6) includes a base rod 11 and a connecting rod 12. The base rod 11 is arranged parallel to the screw rod 10. The end of the base rod 11 facing away from the connecting rod 12 also passes through the slide 8 and can follow the movement of the slide 8. One end of the connecting rod 12 is hinged to the chuck 3 via hinge shaft 1 (4), and the other end is hinged to the end of the base rod 11 facing the chuck 3. The slide 8 is equipped with an adjustment assembly for limiting the position of push rod 2 (7) and base rod 11.

[0049] like Figure 6 As shown, the supply module includes a feed chute 31 vertically defined in the housing 1. The cross-sectional shape of the feed chute 31 matches that of the electrode head to ensure that a single electrode head can slide smoothly down under the action of gravity. The two clamps 3 are located just below the bottom outlet of the feed chute 31.

[0050] like Figure 4 and Figure 7 As shown, in the initial state, the adjustment assembly makes the push rod 1 6 and the push rod 2 7 parallel and aligned close to the end of the chuck 3. The distance between the two chucks 3 is small, blocking the new electrode head above and preventing the new electrode head from falling. When the electrode head needs to be replaced, the two jaws of the servo welding gun 33 insert the old electrode head between the chucks 3. When the screw 10 rotates, the slide 8 moves, and then drives the chuck 3 to move along the axial direction of the screw 10 through the push rod 1 6 and the push rod 2 7. When the left and right chucks 3 approach each other, they can clamp the old electrode head on the servo welding gun 33, and then the two jaws of the servo welding gun 33 separate to disengage the old electrode head from the jaws, completing the extraction of the old electrode head.

[0051] Then, the adjustment assembly moves the push rod 2 7 away from the chuck 3, while the position of the base rod 11 remains unchanged, which causes the chuck 3 to rotate, thereby increasing the distance between the bottoms of the two chucks 3, while the distance at the tops can still prevent the new electrode head from falling. At this time, the old electrode head can fall from between the two chucks 3, completing the separation of the old electrode head.

[0052] Then, if Figure 5 As shown, the adjustment assembly resets the push rod 2 7 and moves the base rod 11 away from the chuck 3. At this time, the chuck 3 rotates around the hinge shaft 2 5. The distance between the tops of the two chucks 3 increases and the distance between the bottoms decreases again. At this time, the new electrode head on top can fall between the two chucks 3 under the action of gravity. Then as shown in FIG. Figure 4 As shown, the base rod 11 is reset, and the two clamps 3 cooperate to clamp the new electrode tip. Finally, the two jaws of the servo welding gun 33 are inserted into the new electrode tips on either side, pressing the new electrode tip into the jaws, completing the installation of the new electrode tip. The screw 10 rotates in the opposite direction, causing the two clamps 3 to release the new electrode tip. The servo welding gun 33 then controls the two clamps to remove the new electrode tip from the device, completing the simultaneous removal of the old electrode tip and installation of the new electrode tip on both sides of the servo welding gun 33, greatly improving replacement efficiency.

[0053] Example 2:

[0054] like Figure 7 and Figure 8As shown, based on the first embodiment, the present invention specifically designs the structure of the adjustment assembly. An adjustment shaft 13 is rotatably mounted on the housing 1, with the axial direction of the adjustment shaft 13 parallel to the screw rod 10. A sleeve 14 is sleeved on the adjustment shaft 13. The inner hole of the sleeve 14 is connected to the adjustment shaft 13 via a spline transmission, allowing the sleeve 14 to slide along the adjustment shaft 13 but not to rotate relative to the adjustment shaft 13. A mounting hole is provided on the slide 8, and the sleeve 14 is rotatably mounted in the mounting hole. This allows the sleeve 14 to rotate relative to the slide 8 but to follow the slide 8 on the adjustment shaft 13. The circumferential surface of the sleeve 14 is provided with two specially shaped guide grooves. At the same time, two limit posts are fixed to the base rod 11 and the push rod 2 7. For ease of description, the two guide grooves are named Guide Groove 1 15 and Guide Groove 2, the limit post on the base rod 11 is named Limit Post 1 16, and the limit post on the push rod 2 7 is named Limit Post 2 17. The limiting post 16 is slidably installed in the guide groove 15, and the limiting post 2 17 is slidably installed in the guide groove 2.

[0055] Guide groove 15 consists of two parts: a stop section 18 and a drive section 19. The stop section 18 extends circumferentially around the sleeve 14 and has no axial component. Therefore, when the retaining pin 16 slides within the stop section 18, it does not move axially along the sleeve 14. The drive section 19, on the other hand, is spirally formed on the outer wall of the sleeve 14, extending both circumferentially and axially. Therefore, when the retaining pin 16 slides within the drive section 19, it moves axially along the sleeve 14.

[0056] The guide groove 2 also includes a stop section 2 and a drive section 2. The stop section 2 extends along the circumference of the sleeve 14, and the drive section 2 spirals on the outer wall of the sleeve 14, and the spiral direction of the drive section 2 is opposite to that of the drive section 1 19.

[0057] When the chuck 3 needs to move linearly, the adjusting shaft 13 does not rotate, and the limiting column 16 and the limiting column 2 17 stay in their respective guide grooves, which means that the base rod 11 and the push rod 2 7 will not move relative to the slide 8 at this time, and the chuck 3 moves with the slide 8 to clamp or release the electrode head.

[0058] When the chuck 3 needs to be opened for loading, the drive adjustment shaft 13 rotates in the forward direction. At this time, the limiting post 17 begins to slide into the stop section 2 of the guide groove 2. The limiting post 16 begins to slide into the drive section 19. Since the drive section 19 has an axial component, it forces the limiting post 16 and the base rod 11 to move axially away from the chuck 3, that is, the push rod 16 is pulled back. The limiting post 17 is in the stop section 2 and will not move away from the chuck 3. Therefore, it will drive the chuck 3 to rotate around the hinge shaft 2 5, thereby expanding the distance between the tops of the two chucks 3 so that the new electrode head can fall between the two chucks 3.

[0059] When the chuck 3 is required to discharge the old electrode head, the drive adjustment shaft 13 rotates in the opposite direction. The limit post 16 and the limit post 2 17 return to their initial positions. At this time, the tops of the two chucks 3 can block the new electrode head from falling. When the drive adjustment shaft 13 rotates further in the opposite direction, the limit post 2 17 begins to enter the drive section 2 of the guide groove 2. The drive section 2 forces the limit post 2 17 together with the push rod 2 7 to move away from the chuck 3 (that is, the push rod 2 7 is pulled back). The limit post 16 now slides into the stop section 18 of the guide groove 15. The stop section 18 restricts the limit post 16 from moving away from the chuck 3, thereby triggering the rotation of the chuck 3, so that the distance between the bottoms of the two chucks 3 is expanded, and the distance between the tops is slightly expanded, so that the old electrode head can be detached from the two chucks 3 while maintaining the new electrode head above from falling.

[0060] Example 3:

[0061] like Figure 3 and Figure 6 As shown, based on Examples 1 and 2, the present invention, in order to simultaneously drive all adjustment shafts 13 and all lead screws 10 in the replacement assemblies on both sides, includes a drive shaft 1 20 and a drive shaft 2 21 rotatably mounted on the housing 1. Drive shafts 10 and 21 extend through the housing 1 and run parallel to the lead screws 10. Both ends of drive shaft 1 20 are connected to all adjustment shafts 13 on the housing 1 via a synchronous belt 22 transmission mechanism, simultaneously driving all adjustment shafts 13 to rotate. A motor 1 23 is fixed to the housing 1, driving drive shaft 1 20 to rotate. A motor 2 24 is also fixed to the housing 1, driving drive shaft 2 21 to rotate. Drive shaft 2 21 is connected to all lead screws 10 via multiple sets of synchronous belts 22 transmission mechanisms, simultaneously driving all lead screws 10 to rotate. Thus, by controlling the timing and drive direction of motors 1 23 and 24, all chucks 3 can be driven to move or rotate.

[0062] Example 4:

[0063] Based on the first to third embodiments, the fourth embodiment integrates the electrode tip end grinding function. Figure 10 and Figure 11 As shown, a grinding head 25 is symmetrically positioned on either side of the housing 1, corresponding to the positions of the chucks 3 in the two clamping modules. The grinding heads 25 are rotatably mounted on the housing 1. Each grinding head 25 has a grinding groove 26 at one end near the chuck 3. The groove 26 is contoured to closely match the shape of the electrode tip end to be polished (e.g., a hemispherical shape). Both new and old electrode tips can be placed in the grinding groove 26 for polishing and repair.

[0064] A drive shaft three 27 is rotatably mounted on the shell 1. A bevel gear one 28 is fixedly mounted on the bottom of the drive shaft three 27. The shafts 30 of the two grinding heads 25 are located on the same straight line, and the ends thereof facing the inside of the shell 1 are fixedly mounted with bevel gears two 29. Bevel gear one 28 is arranged between the two bevel gears two 29 and is simultaneously engaged with the bevel gears two 29 on both sides. A motor three 32 is fixed on the top of the shell 1, and the motor three 32 drives the drive shaft three 27 to rotate. The drive shaft three 27 simultaneously drives the bevel gears two 29 on both sides to rotate through the bevel gear one 28, thereby driving the two grinding heads 25 to rotate. When the old grinding head 25 can still be used, the clamping jaws of the servo welding gun 33 can push the old electrode head into the grinding groove 26, and the grinding head 25 rotates to grind off the welding chips remaining at the end of the old electrode head.

[0065] During the process of the new electrode head being pressed into place by the jaws of the servo welding gun 33, the chuck 3 can be loosened appropriately to reduce the clamping force and no longer completely tighten the new electrode head. Instead, it mainly serves the purpose of guiding and assisting in positioning. At this time, the axis of the new electrode head is collinear with the axis of the grinding head 25, and the bottom end face of the new electrode head will be pressed into the grinding groove 26 of the grinding head 25 under the pressure continuously applied by the jaws of the servo welding gun 33. The grinding head 25 provides a solid support surface for the end of the new electrode head. The end face of the new electrode head is in large-area contact with the grinding groove 26, forming a surface support. At the same time, the chuck 3 and the side of the new electrode head also have surface support. The large-area contact between the two significantly reduces the pressure per unit area during the pressing process, effectively preventing the new electrode head from being locally sunken, crushed, or deformed under pressure.

[0066] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An auxiliary device for replacing an electrode tip of a servo welding gun, characterized in that: include: A housing, wherein the housing is fixed to the frame via a connecting plate; Two sets of replacement components are symmetrically arranged on both sides of the shell, and the replacement components include a clamping module for clamping the electrode head and a supply module for conveying the electrode head. Among them, the clamping module includes two chucks, and the upper and lower ends of the chucks are hinged to push rod 1 and push rod 2 through hinge shaft 1 and hinge shaft 2 respectively; when push rod 1 and push rod 2 move synchronously, the chucks are pushed to move, and the two chucks cooperate to clamp or release the electrode head; when push rod 1 moves and push rod 2 does not move, the chucks rotate around hinge shaft 2, and the supply module supplies new electrode heads to the middle of the two chucks.

2. The electrode tip replacement auxiliary device for a servo welding gun according to claim 1, characterized in that: The clamping module further includes two displacement drive structures, each for driving the two clamps to move; the displacement drive structure includes: A slide seat, wherein a slide groove is provided on the housing, and the slide seat is slidably installed in the slide groove; The screw rod is rotatably mounted in the slide groove and cooperates with the slide seat thread; Among them, the push rod 2 is parallel to the screw rod, and the end of the push rod 2 away from the chuck is inserted on the slide seat; the push rod 1 includes a base rod and a connecting rod hinged on the base rod, the connecting rod is hinged to the chuck through the hinge shaft 1, the end of the base rod away from the connecting rod is inserted on the slide seat, and the base rod is parallel to the screw rod; the base rod and the push rod 2 are fixed on the slide seat through an adjustment component.

3. The electrode tip replacement auxiliary device for a servo welding gun according to claim 2, characterized in that: The adjustment component includes: The adjusting shaft is rotatably mounted on the housing and parallel to the screw; A shaft sleeve is sleeved on the adjusting shaft and is driven by a spline with the adjusting shaft. The slide seat is provided with a mounting hole, and the shaft sleeve is rotatably mounted in the mounting hole. Among them, two guide grooves are provided on the circumferential surface of the shaft sleeve, and the limiting column 1 and the limiting column 2 are fixed on the base rod and the push rod 2 respectively, and the limiting column 1 and the limiting column 2 are respectively slidably installed in the two guide grooves.

4. The electrode tip replacement auxiliary device for a servo welding gun according to claim 3, characterized in that: The two guide grooves are guide groove 1 and guide groove 2 respectively, wherein the guide groove 1 includes a stop section 1 and a drive section 1, and the guide groove 2 includes a stop section 2 and a drive section 2; Among them, the limit column 1 is slidably installed in the guide groove 1, and the limit column 2 is slidably installed in the guide groove 2; when the adjusting shaft rotates forward, the driving section 1 drives the limit column 1 to move away from the chuck, and the stop section 2 maintains the position of the limit column 2; when the adjusting shaft rotates reversely, the driving section 2 drives the limit column 2 to move away from the chuck, and the stop section 1 maintains the position of the limit column 1.

5. The electrode tip replacement auxiliary device for a servo welding gun according to claim 3, characterized in that: A drive shaft 1 and a drive shaft 2 are rotatably mounted on the shell. The drive shaft 1 is connected to all the adjustment shafts through a belt transmission mechanism. The drive shaft 2 is connected to all the screw rods through a belt transmission mechanism. A motor 1 for driving the drive shaft 1 to rotate and a motor 2 for driving the drive shaft 2 to rotate are fixed on the shell.

6. The electrode tip replacement auxiliary device for a servo welding gun according to claim 1, characterized in that: Grinding heads are symmetrically and rotatably mounted on both sides of the shell, and the grinding heads are provided with grinding grooves that match the ends of the electrode heads.

7. The electrode tip replacement auxiliary device for a servo welding gun according to claim 6, characterized in that: A driving shaft three is rotatably mounted on the shell, a bevel gear one is fixed to the bottom of the driving shaft three, the shafts of the two grinding heads are collinear and both are fixed with bevel gears two, and the bevel gear one is meshed with the two bevel gears two.

8. The electrode tip replacement auxiliary device for a servo welding gun according to claim 6, characterized in that: When the two clamps cooperate to clamp the electrode head, the axis of the electrode head is collinear with the axis of the grinding head.

9. The electrode tip replacement auxiliary device for a servo welding gun according to claim 1, characterized in that: The supply module includes a feed trough vertically opened on the shell, the cross section of the feed trough is adapted to the electrode head, and the two clamps are located below the bottom outlet of the feed trough; When the two clamps rotate around the second hinge shaft, the distance between the tops of the two clamps expands, and the electrode head at the bottom of the feed trough falls between the two clamps.

10. The electrode tip replacement auxiliary device for a servo welding gun according to claim 1, characterized in that: The clamping head is in an arc shape, and the hinge shaft 1 and the hinge shaft 2 are rotatably mounted at the two ends of the arc.

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