Laser welding device for shock absorber pin

Abstract

The invention relates to the technical field of laser welding, and discloses a laser welding device for a shock absorber pin, which comprises a mounting bottom plate, a limiting baffle plate, a fixed toothed plate, a rotating gear, a limiting end shock absorber pin, an inserting end shock absorber pin, a laser welder, a clamping assembly, a driving assembly and a circulating assembly, according to the device, through the meshing structure of the circulating assembly and the gear, revolution and autorotation of a workpiece to be welded are conducted synchronously, the laser welding device is driven to move synchronously in cooperation with the driving assembly, laser does not need to surround the workpiece, uniform girth welding can be completed, and welding seams are continuous and regular; the welding precision and connection stability are remarkably improved, advanced material preparation and continuous operation are supported through the circulating layout, workpieces to be welded can be synchronously replaced in the welding process, shutdown waiting is not needed, and meanwhile the production efficiency can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and more specifically to a laser welding device for shock absorber pins. Background Technology

[0002] As the core connecting component of the shock absorber, the structural integrity and welding strength of the shock absorber pin directly determine the assembly accuracy and service life of the shock absorber. Existing shock absorber pins require a circumferential welding process to achieve a stable connection at both ends, requiring the weld to be uniform and continuous with strength close to that of the base material, while also meeting the efficiency requirements of large-scale production. Laser welding, with its advantages of small heat-affected zone, high welding precision, and excellent weld quality, has become the preferred process for welding shock absorber pins. However, its equipment design needs to be adapted to the circumferential welding requirements of shock absorber pins and continuous production scenarios.

[0003] In existing laser welding, when welding pins, the pin is usually fixed during the welding process, and then the laser is used to weld around the pin. This welding method consumes a lot of space just to allow the laser welding equipment to circle the pin. In order not to affect the welding effect, the material cannot be prepared in advance after the welding is completed, and the pin to be welded must be replaced on site. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a laser welding device for shock absorber pins, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a laser welding device for shock absorber pins, comprising: a mounting base plate, a limiting baffle, a fixed toothed plate, a rotating gear, a limiting end shock absorber pin, an insert end shock absorber pin, a laser welder, a clamping assembly, a driving assembly, and a circulation assembly; wherein... The fixed toothed plate is attached to the inner wall of the limiting baffle, and the fixed toothed plate and the rotating gear are on the same plane and mesh with each other; The clamping assembly is used to clamp and fix the limiting end shock absorber pin, and the rotating gear and the limiting end shock absorber pin are coaxially arranged. When the circulation component moves, it can drive the rotating gear to move together, so that the rotating gear can rotate in contact with the inner wall of the fixed tooth plate. Under the action of the fixed tooth plate, the rotating gear rotates along its own axis at the same time. The drive assembly is used to drive the laser welder so that it moves synchronously with the rotating gear; The laser welder is used to weld the plug-in end shock absorber pin ring onto the limit end shock absorber pin.

[0006] It also includes a clamping assembly comprising a clamping mounting base, a clamping mounting block, a double-ended lead screw, a rotating handle, and a positioning connecting rod. The clamping mounting base is fixedly mounted on the upper surface of the rotating gear. The two clamping mounting blocks are mounted opposite each other inside the clamping mounting base. The double-ended lead screw is movably mounted inside the clamping mounting base, and the clamping mounting block and the double-ended lead screw are engaged by threads.

[0007] It also includes two positioning connecting rods fixedly installed on the inner side of the clamping mounting base, each of the positioning connecting rods being movably inserted into the inner side of the clamping mounting block, and the limiting end shock absorber pin being movably inserted between the two clamping mounting blocks.

[0008] It also includes a drive assembly comprising a fixed mounting bracket, a rotating mounting bracket, a transverse mounting block, a guide connecting rod, a transverse lead screw, a second reducer, and a second servo motor. The fixed mounting bracket is fixedly mounted on the upper surface of the limit baffle. The rotating mounting bracket is fixedly disposed on one side of the fixed mounting bracket. A guide connecting rod is fixedly disposed on the inner side of the rotating mounting bracket. A transverse lead screw is movably disposed on the inner side of the rotating mounting bracket. The transverse mounting block is movably sleeved on the guide connecting rod. The transverse lead screw is inserted into the inner side of the transverse mounting block and engaged by threads. A second reducer and a second servo motor are sequentially fixed on one side of the rotating mounting bracket.

[0009] It also includes an adjustable mounting plate movably disposed on the inner side of the transverse mounting block. A laser welder and a power supply connector are fixedly disposed at both ends of the adjustable mounting plate, respectively. The power supply connector is disposed at the end away from the limit end shock absorber pin. One end of the power supply connector passes through the adjustable mounting plate and is fixedly connected to the laser welder. An adjusting screw is movably disposed on the inner side of the adjustable mounting plate.

[0010] It also includes a limiting constraint plate fixedly provided on the upper surface of the mounting base plate, a limiting constraint groove opened on the upper surface of the limiting constraint plate, a limiting baffle fixedly provided on the upper surface of the limiting constraint plate, and the limiting constraint groove being provided inside the limiting baffle. A support connecting frame, a first reducer and a first servo motor are sequentially fixedly provided on the lower surface of the mounting base plate, and a power transmission rod is fixedly provided on the upper surface of the first reducer.

[0011] It also includes a power transmission wheel and three auxiliary rotating wheels movably provided on the upper surface of the mounting base plate, one end of the power transmission rod passing through the mounting base plate and fixedly connected to the power transmission wheel, and an auxiliary rotating shaft fixedly provided on the lower surface of the mounting base plate, one end of the auxiliary rotating shaft passing through the mounting base plate and fixedly connected to the corresponding auxiliary rotating wheel.

[0012] It also includes a protective shell fixedly provided on the upper surface of the mounting base plate, with each protective shell mounted on a corresponding power transmission wheel or auxiliary rotating wheel.

[0013] It also includes a circulation assembly comprising a transmission connecting belt, a transmission connecting block, a movable constraint plate, and a movable constraint block. The transmission connecting belt is movably sleeved on each power transmission wheel and auxiliary rotating wheel. The movable constraint plate is fixedly installed on the outer surface of the transmission connecting belt. A transmission connecting block is fixedly provided at one end of the movable constraint plate away from the transmission connecting belt. A movable constraint block is fixedly provided on the lower surface of the transmission connecting block. One end of the movable constraint block is movably inserted into the inner side of the limiting constraint groove.

[0014] It also includes that the lower surface of the rotating gear is movably inserted into the inner side of the transmission connecting block, the lower surface of the transmission connecting block is movably provided with a limiting screw, one end of the limiting screw is installed on the inner side of the rotating gear by a thread, the lower surface of the mounting base plate is fixedly provided with a transverse mounting bracket, and the lower surface of the transverse mounting bracket is fixedly provided with a support connecting bracket.

[0015] The technical solution provided by this invention has the following advantages compared with the prior art: This device uses a circulating component and a gear meshing structure to achieve synchronous revolution and rotation of the workpiece to be welded. Together with the drive component, it drives the laser welder to move synchronously. It can complete uniform circumferential welding without the laser circling the workpiece. The weld seam is continuous and regular, which significantly improves welding accuracy and connection stability. This circulating layout supports advance material preparation and continuous operation. The workpiece to be welded can be changed synchronously during the welding process without stopping the machine to wait, and at the same time, it can greatly improve production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a top view of the structure in an embodiment of the present invention; Figure 3 This is a front view schematic diagram of the structure in an embodiment of the present invention; Figure 4 This is a partial cross-sectional view of an embodiment of the present invention; Figure 5 This is a schematic diagram of the auxiliary rotating wheel structure in an embodiment of the present invention; Figure 6 This is a schematic diagram of the laser welder structure in an embodiment of the present invention; Figure 7 This is a schematic diagram of the loop component structure in an embodiment of the present invention; Figure 8 This is a schematic diagram of the power transmission wheel structure in an embodiment of the present invention; Figure 9 This is a schematic diagram of the rotating gear structure in an embodiment of the present invention; Figure 10 As described in the embodiments of the present invention Figure 4 A schematic diagram of part A of the structure.

[0018] The labels in the diagram represent: 1. Mounting base plate; 2. Limiting constraint plate; 3. Limiting baffle; 4. Fixed toothed plate; 5. Limiting constraint groove; 6. Fixed mounting bracket; 7. Protective shell; 8. Power transmission wheel; 9. Support connecting bracket; 10. No. 1 reducer; 11. No. 1 servo motor; 12. Power transmission rod; 13. Transmission connecting belt; 14. Transmission connecting block; 15. Movable constraint plate; 16. Movable constraint block; 17. Rotating gear; 18. Clamping mounting base; 19. Clamping mounting block; 20. Double-ended screw. 21. Rotating handle; 22. Limiting end shock absorber pin; 23. Plug-in end shock absorber pin; 24. Rotating mounting bracket; 25. Lateral mounting block; 26. Guide connecting rod; 27. Lateral lead screw; 28. Laser welder; 29. ​​Second reducer; 30. Second servo motor; 31. Auxiliary rotating shaft; 32. Auxiliary rotating wheel; 33. Lateral mounting bracket; 34. Support connecting bracket; 35. Limiting screw; 36. Adjusting mounting plate; 37. Power supply plug; 38. Adjusting screw; 39. Positioning connecting rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to embodiments.

[0021] Example: Please see Figures 1-4 The present invention provides a technical solution: a laser welding device for shock absorber pins, comprising: a mounting base plate 1, a limiting baffle 3, a fixed toothed plate 4, a rotating gear 17, a limiting end shock absorber pin 22, a plug-in end shock absorber pin 23, a laser welder 28, a clamping assembly, a driving assembly, and a circulation assembly. The fixed toothed plate 4 is attached to the inner wall of the limiting baffle 3, and the fixed toothed plate 4 and the rotating gear 17 are on the same plane and mesh with each other. The clamping assembly is used to clamp and fix the limiting end shock absorber pin 22, and the rotating gear 17 and the limiting end shock absorber pin 22 are coaxially arranged. When the circulation assembly moves, it can drive the rotating gear 17 to move together, so that the rotating gear 17 is in contact with the inner wall of the fixed tooth plate 4 and rotates. Under the action of the fixed tooth plate 4, the rotating gear 17 rotates along its own axis at the same time. The driving assembly is used to drive the laser welder 28 to move synchronously with the rotating gear 17. The laser welder 28 is used to circumferentially weld the plug-in end shock absorber pin 23 to the limiting end shock absorber pin 22. The clamping assembly includes a clamping mounting base 18, a clamping mounting block 19, a double-ended lead screw 20, a rotating handle 21, and a positioning connecting rod 39. The clamping mounting base 18 is fixedly mounted on the upper surface of the rotating gear 17. Two clamping mounting blocks 19 are mounted opposite each other inside the clamping mounting base 18. The double-ended lead screw 20 is movably mounted inside the clamping mounting base 18, and the clamping mounting block 19 and the double-ended lead screw 20 are engaged by threads. Two positioning connecting rods 39 are fixedly mounted inside the clamping mounting base 18. Each positioning connecting rod 39 is movably inserted into the inside of the clamping mounting block 19. The limiting end shock absorber pin 22 is movably inserted between the two clamping mounting blocks 19. The drive assembly includes a fixed mounting bracket 6, a rotating mounting bracket 24, a transverse mounting block 25, a guide connecting rod 26, a transverse lead screw 27, a second reducer 29, and a second servo motor 30. The fixed mounting bracket 6 is fixedly mounted on the upper surface of the limit baffle 3. The rotating mounting bracket 24 is fixedly mounted on one side of the fixed mounting bracket 6. The guide connecting rod 26 is fixedly mounted inside the rotating mounting bracket 24. The transverse lead screw 27 is movably mounted inside the rotating mounting bracket 24. The transverse mounting block 25 is movably sleeved on the guide connecting rod 26. The transverse lead screw 27 is inserted into the transverse mounting block 25 and engaged by threads. The second reducer 29 and the second servo motor 30 are fixedly mounted on one side of the rotating mounting bracket 24 in sequence. An adjustable mounting plate 36 is movably provided on the inner side of the transverse mounting block 25. A laser welder 28 and a power supply connector 37 are fixedly provided at both ends of the adjustable mounting plate 36. The power supply connector 37 is located at the end away from the limit end shock absorber pin 22. One end of the power supply connector 37 passes through the adjustable mounting plate 36 and is fixedly connected to the laser welder 28. An adjustable screw 38 is movably provided on the inner side of the adjustable mounting plate 36. A limiting constraint plate 2 is fixedly provided on the upper surface of the mounting base plate 1. A limiting constraint groove 5 is opened on the upper surface of the limiting constraint plate 2. A limiting baffle 3 is fixedly provided on the upper surface of the limiting constraint plate 2, and the limiting constraint groove 5 is located inside the limiting baffle 3. A support connecting frame 9, a first reducer 10 and a first servo motor 11 are fixedly provided on the lower surface of the mounting base plate 1 in sequence. A power transmission rod 12 is fixedly provided on the upper surface of the first reducer 10.

[0022] In practice: the mounting base plate 1 is fixed horizontally, the upper surface of the limiting constraint plate 2 has a limiting constraint groove 5 to provide guidance for the circulation component, the limiting baffle 3 is fixed on the limiting constraint plate 2, and the horizontal mounting brackets 33 and 34 jointly support the whole equipment to ensure operational stability.

[0023] The second servo motor 30 transmits its high-speed rotational power to the second reducer 29. After reduction, the speed is reduced and the torque is increased to ensure that the power output is stable and meets the welding movement requirements. This avoids the laser welder 28 from moving off course due to excessive speed. The output end of the second reducer 29 is fixedly connected to the transverse lead screw 27, which drives the transverse lead screw 27 to rotate inside the rotating mounting bracket 24. The transverse lead screw 27 and the transverse mounting block 25 are threaded together, converting the rotational motion into the linear motion of the transverse mounting block 25. The transverse mounting block 25 is movably sleeved on the guide connecting rod 26 and moves smoothly along the axis of the guide connecting rod 26. The moving speed of the transverse mounting block 25 is controlled by the rotational speed of the second servo motor 30, which is perfectly matched with the revolution speed of the rotating gear 17 driven by the circulation component. This ensures that the laser welder 28 is always aligned with the mating point of the limit end shock absorber pin 22 and the insertion end shock absorber pin 23. The adjusting mounting plate 36 is movably installed inside the transverse mounting block 25. The angle and height of the mounting plate 36 can be finely adjusted by rotating the adjusting screw 38, thereby adjusting the welding posture of the laser welder 28 to adapt to the mating gap and welding angle requirements of shock absorber pins of different specifications.

[0024] The clamping assembly places the limiting end shock absorber pin 22 between two clamping mounting blocks 19, ensuring that the workpiece axis is aligned with the axis of the rotating gear 17. The manual rotation of the rotating handle 21 drives the double-ended lead screw 20 to rotate inside the clamping mounting base 18. The two ends of the double-ended lead screw 20 have opposite threads and mesh with the two clamping mounting blocks 19 respectively. The rotational motion is converted into the relative linear motion of the two clamping mounting blocks 19. The two positioning connecting rods 39 are fixed inside the clamping mounting base 18 and are movably inserted into the two clamping mounting blocks 19 respectively, forming a rigid constraint on the movement direction of the clamping mounting blocks 19 to prevent them from tilting during movement. As the clamping mounting blocks 19 move relative to each other along the positioning connecting rods 39, the limiting end shock absorber pin 22 is gradually clamped until the preset clamping force is reached, ensuring that the workpiece does not loosen or shift during the welding process.

[0025] Please see Figures 3-6The present invention provides a technical solution: a power transmission wheel 8 and three auxiliary rotating wheels 32 are movably provided on the upper surface of the mounting base plate 1; one end of the power transmission rod 12 passes through the mounting base plate 1 and is fixedly connected to the power transmission wheel 8; an auxiliary rotating shaft 31 is fixedly provided on the lower surface of the mounting base plate 1; one end of the auxiliary rotating shaft 31 passes through the mounting base plate 1 and is fixedly connected to the corresponding auxiliary rotating wheel 32; a protective shell 7 is fixedly provided on the upper surface of the mounting base plate 1; and each protective shell 7 is installed on the corresponding power transmission wheel 8 or auxiliary rotating wheel 32.

[0026] In specific implementation: the power input end of the power transmission wheel 8 is the power transmission rod 12, the power source is the first servo motor 11 and the first reducer 10, the transmission matching part is the transmission connecting belt 13, and the protective part is the protective shell 7. The whole is installed on the upper surface of the mounting base plate 1, and together with the three auxiliary rotating wheels 32, it forms a transmission support system. When the first servo motor 11 is started, its output high-speed rotational power is transmitted to the first reducer 10. After the first reducer 10 reduces the speed and amplifies the torque, it ensures that the output power is stable and meets the transmission requirements.

[0027] Please see Figures 7-10 The present invention provides a technical solution: the circulation component includes a transmission connecting belt 13, a transmission connecting block 14, a movable constraint plate 15, and a movable constraint block 16. The transmission connecting belt 13 is movably sleeved on each power transmission wheel 8 and the auxiliary rotating wheel 32. The movable constraint plate 15 is fixedly installed on the outer surface of the transmission connecting belt 13. The end of the movable constraint plate 15 away from the transmission connecting belt 13 is fixedly provided with the transmission connecting block 14. The lower surface of the transmission connecting block 14 is fixedly provided with the movable constraint block 16. One end of the movable constraint block 16 is movably inserted into the inner side of the limiting constraint groove 5. The lower surface of the rotating gear 17 is movably inserted into the inner side of the transmission connecting block 14. The lower surface of the transmission connecting block 14 is movably provided with a limiting screw 35. One end of the limiting screw 35 is installed inside the rotating gear 17 by thread. The lower surface of the mounting base plate 1 is fixedly provided with a transverse mounting bracket 33. The lower surface of the transverse mounting bracket 33 is fixedly provided with a support connecting bracket 34.

[0028] In specific implementation: The limiting end shock absorber pin 22 is placed on the clamping mounting base 18 at the end away from the laser welder, between two clamping mounting blocks 19. The rotating handle 21 drives the double-ended lead screw 20 to rotate, and the two clamping mounting blocks 19 are driven to move relative to each other along the positioning connecting rod 39 through thread transmission until the limiting end shock absorber pin 22 is clamped and fixed. At this time, the rotating gear 17 is coaxially set with the limiting end shock absorber pin 22 to ensure that they can rotate together in subsequent rotations. Along the racetrack-shaped trajectory of the transmission connecting belt 13, the rotating gear 17 and the clamping assembly are installed on multiple sets of transmission connecting blocks 14 respectively. The above clamping steps are repeated to fix multiple limiting end shock absorber pins 22 to be welded in sequence, completing the advance preparation of materials and preparing for continuous operation. The limiting end shock absorber pin 22 and the plug-in end shock absorber pin 23 are pre-fixed by spot welding before installation.

[0029] Adjust the adjusting screw 38 on the adjusting mounting plate 36 according to the welding requirements, and fine-tune the height and angle of the laser welder 28 so that it is aligned with the mating point of the limit end shock absorber pin 22 and the plug end shock absorber pin 23. Install multiple laser welders 28 side by side on the adjusting mounting plate 36, with the spacing between them consistent with the spacing of the workpieces on the transmission connecting belt 13, to ensure that each laser head corresponds to one workpiece to be welded, thereby enabling the simultaneous welding of multiple workpieces.

[0030] Start the first servo motor 11 on the lower surface of the mounting base plate 1. The power is reduced by the first reducer 10 and then transmitted to the power transmission wheel 8 through the power transmission rod 12, which drives the power transmission wheel 8 to rotate. The power transmission wheel 8 transmits power through the transmission connecting belt 13, which drives the movable constraint plate 15 and the transmission connecting block 14 on the outer surface of the transmission connecting belt 13 to move synchronously along the track.

[0031] The movable constraint block 16 on the lower surface of the transmission connecting block 14 is inserted into the limiting constraint groove 5 and moves smoothly along the groove to prevent the transmission connecting block 14 from shifting. The lower surface of the rotating gear 17 is inserted into the transmission connecting block 14 and fixed by the limiting screw 35. The rotating gear 17 meshes with the fixed tooth plate 4, causing the rotating gear 17 to rotate around its own axis, thereby driving the coaxial limiting end shock absorber pin 22 and the insertion end shock absorber pin 23 to rotate synchronously, providing conditions for ring welding.

[0032] The second servo motor 30 on one side of the rotating mounting bracket 24 is started synchronously. The power is transmitted to the transverse lead screw 27 through the second reducer 29. The rotation of the transverse lead screw 27 drives the transverse mounting block 25 to move laterally along the guide connecting rod 26 through the threaded transmission. The moving speed of the transverse mounting block 25 matches the revolution speed of the rotating gear 17, ensuring that the laser welder 28 is always aligned with the welding interface of the workpiece to be welded.

[0033] The laser welds the mating joint between the limiting end shock absorber pin 22 and the plug-in end shock absorber pin 23. Since the workpiece is rotating, the laser welder 28 only needs to move a small distance laterally with the workpiece to complete the complete ring welding. If the welding effect of a single weld is not up to standard, the number of welding rings can be increased, and the same workpiece can be welded a second or third time until the preset welding quality requirements are met.

[0034] After a single workpiece is welded, it continues to revolve along the trajectory of the transmission belt 13, moving out of the working range of the laser welder 28. Then the equipment stops moving. At this time, the operator can remove the welded shock absorber pin and re-clamp a new workpiece to be welded on the empty clamping assembly. At the same time, the laser welder 28 is reset. After the equipment is reset and the operator has removed and replaced the welded shock absorber pin, the No. 1 servo motor is restarted, and the above operation is repeated. The replenished workpiece moves cyclically along the trajectory, waiting to enter the welding area, forming an uninterrupted continuous production process, which significantly improves production efficiency.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser welding device for shock absorber pins, characterized in that, include: The system includes a mounting base plate (1), a limiting baffle (3), a fixed toothed plate (4), a rotating gear (17), a limiting end shock absorber pin (22), a plug-in end shock absorber pin (23), a laser welder (28), a clamping assembly, a driving assembly, and a circulation assembly; among which... The fixed toothed plate (4) is attached to the inner wall of the limiting baffle (3), and the fixed toothed plate (4) and the rotating gear (17) are on the same plane and mesh with each other; The clamping assembly is used to clamp and fix the limiting end shock absorber pin (22), and the rotating gear (17) and the limiting end shock absorber pin (22) are coaxially arranged; When the circulation component moves, it can drive the rotating gear (17) to move together, so that the rotating gear (17) can rotate against the inner wall of the fixed tooth plate (4). Under the action of the fixed tooth plate (4), the rotating gear (17) rotates along its own axis at the same time. The drive assembly is used to drive the laser welder (28) so that it moves synchronously with the rotating gear (17); The laser welder (28) is used to circumferentially weld the plug-in end shock absorber pin (23) onto the limit end shock absorber pin (22).

2. The laser welding device for shock absorber pins according to claim 1, characterized in that: The clamping assembly includes a clamping mounting base (18), a clamping mounting block (19), a double-ended lead screw (20), a rotating handle (21), and a positioning connecting rod (39). The clamping mounting base (18) is fixedly mounted on the upper surface of the rotating gear (17). The two clamping mounting blocks (19) are mounted opposite each other inside the clamping mounting base (18). The double-ended lead screw (20) is movably mounted inside the clamping mounting base (18), and the clamping mounting block (19) and the double-ended lead screw (20) are engaged by threads.

3. The laser welding device for shock absorber pins according to claim 2, characterized in that: Two positioning connecting rods (39) are fixedly installed on the inner side of the clamping mounting base (18). Each positioning connecting rod (39) is movably inserted into the inner side of the clamping mounting block (19). The limiting end shock absorber pin (22) is movably inserted between the two clamping mounting blocks (19).

4. The laser welding device for shock absorber pins according to claim 1, characterized in that: The drive assembly includes a fixed mounting bracket (6), a rotating mounting bracket (24), a transverse mounting block (25), a guide connecting rod (26), a transverse lead screw (27), a second reducer (29), and a second servo motor (30). The fixed mounting bracket (6) is fixedly mounted on the upper surface of the limiting baffle (3). The rotating mounting bracket (24) is fixedly mounted on one side of the fixed mounting bracket (6). The guide connecting rod (26) is fixedly mounted on the inner side of the rotating mounting bracket (24). The transverse lead screw (27) is movably mounted on the inner side of the rotating mounting bracket (24). The transverse mounting block (25) is movably sleeved on the guide connecting rod (26). The transverse lead screw (27) is inserted into the inner side of the transverse mounting block (25) and meshed with it by threads. The second reducer (29) and the second servo motor (30) are fixedly mounted on one side of the rotating mounting bracket (24).

5. The laser welding device for shock absorber pins according to claim 4, characterized in that: The inner side of the transverse mounting block (25) is provided with an adjustable mounting plate (36). The two ends of the adjustable mounting plate (36) are respectively fixed with a laser welder (28) and a power supply connector (37). The power supply connector (37) is located at the end away from the limit end shock absorber pin (22). One end of the power supply connector (37) passes through the adjustable mounting plate (36) and the laser welder (28) and is fixedly connected. The inner side of the adjustable mounting plate (36) is provided with an adjusting screw (38).

6. The laser welding device for shock absorber pins according to claim 1, characterized in that: The mounting base plate (1) is fixedly provided with a limiting constraint plate (2) on its upper surface. A limiting constraint groove (5) is opened on the upper surface of the limiting constraint plate (2). A limiting baffle (3) is fixedly provided on the upper surface of the limiting constraint plate (2), and the limiting constraint groove (5) is provided inside the limiting baffle (3). A support connecting frame (9), a first reducer (10) and a first servo motor (11) are fixedly provided on the lower surface of the mounting base plate (1) in sequence. A power transmission rod (12) is fixedly provided on the upper surface of the first reducer (10).

7. The laser welding device for shock absorber pins according to claim 6, characterized in that: The upper surface of the mounting base plate (1) is movably provided with a power transmission wheel (8) and three auxiliary rotating wheels (32). One end of the power transmission rod (12) passes through the mounting base plate (1) and is fixedly connected to the power transmission wheel (8). The lower surface of the mounting base plate (1) is fixedly provided with an auxiliary rotating shaft (31). One end of the auxiliary rotating shaft (31) passes through the mounting base plate (1) and is fixedly connected to the corresponding auxiliary rotating wheel (32).

8. The laser welding device for shock absorber pins according to claim 7, characterized in that: The upper surface of the mounting base plate (1) is fixedly provided with a protective shell (7), and each of the protective shells (7) is installed on the corresponding power transmission wheel (8) or auxiliary rotating wheel (32).

9. The laser welding device for shock absorber pins according to claim 8, characterized in that: The circulation assembly includes a transmission connecting belt (13), a transmission connecting block (14), a movable constraint plate (15), and a movable constraint block (16). The transmission connecting belt (13) is movably sleeved on each power transmission wheel (8) and auxiliary rotating wheel (32). The movable constraint plate (15) is fixedly installed on the outer surface of the transmission connecting belt (13). The end of the movable constraint plate (15) away from the transmission connecting belt (13) is fixedly provided with the transmission connecting block (14). The lower surface of the transmission connecting block (14) is fixedly provided with the movable constraint block (16). One end of the movable constraint block (16) is movably inserted into the inner side of the limiting constraint groove (5).

10. A laser welding device for shock absorber pins according to claim 9, characterized in that: The lower surface of the rotating gear (17) is movably inserted into the inner side of the transmission connecting block (14). The lower surface of the transmission connecting block (14) is movably provided with a limiting screw (35). One end of the limiting screw (35) is installed inside the rotating gear (17) by thread. The lower surface of the mounting base plate (1) is fixedly provided with a transverse mounting bracket (33). The lower surface of the transverse mounting bracket (33) is fixedly provided with a support connecting bracket (34).

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