A welding device for processing the outer cylinder of an automobile shock absorber

Abstract

The present invention relates to the technical field of shock absorber welding, and particularly relates to a welding device for processing the outer cylinder of an automotive shock absorber. There is a base, a left fixture for clamping the outer cylinder is provided at one end of the base, and a right fixture for clamping the end cap is provided at the other end; a welding assembly is provided on one side of the base, and a grinding assembly is provided on the other side. The grinding assembly includes a driving part, an installation plate is arranged on the driving part, and a welding torch is arranged on the installation plate. Through the arranged butt joint detection assembly of the present invention, before welding, the clamped outer cylinder and the cylinder end are driven to rotate one week. If the butt joint accuracy between the outer cylinder and the cylinder end is poor, the laser signal emitted upward by the laser emitter arranged on the first guide rod and received by the laser receiver arranged on the second guide rod will generate fluctuations, so that the butt joint accuracy between the outer cylinder and the cylinder end can be judged in time; when it is detected that the butt joint accuracy between the outer cylinder and the cylinder end is poor, the positions of the outer cylinder and the cylinder end are adjusted to ensure their butt joint accuracy, thereby ensuring the welding effect.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorber welding, and particularly to a welding device for processing the outer cylinder of an automotive shock absorber. Background Art

[0002] As an important part of the vehicle suspension system, automotive shock absorbers play a crucial role in ensuring driving safety and riding comfort. Among them, the connection quality between the outer cylinder of the shock absorber and its end cover directly affects the performance and service life of the entire shock absorber. Therefore, achieving an efficient and precise welding process has become a key link in improving the manufacturing quality of shock absorbers; before performing circumferential welding, it is necessary to ensure the precise docking between the outer cylinder and the end cover. Any slight deviation may lead to welding defects such as false welding and porosity.

[0003] The patent with the application number CN202211531883.X discloses a welding device for processing the outer cylinder of an automotive shock absorber, including a welding pedestal; a control panel is fixedly connected to the right side of the welding pedestal by screws; an automatic welding arm, which is fixedly connected to the rear side of the upper surface of the welding pedestal by bolts, and the automatic welding arm is connected to the control panel through an electrical connection wire.

[0004] However, during use, it is difficult to judge the precise alignment of the workpieces due to manual operation, thus it is difficult to ensure the consistency and precision of each welding, easily resulting in uneven welds and even problems such as missed welding, affecting the welding quality. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a welding device for processing the outer cylinder of an automotive shock absorber to solve the problem that it is difficult to judge the precise alignment of the workpieces in the existing shock absorber outer cylinder welding device, thereby making it difficult to ensure the consistency and precision of each welding.

[0006] Based on the above purpose, the present invention provides a welding device for processing the outer cylinder of an automotive shock absorber, including a base, a left clamp for clamping the outer cylinder is arranged at one end of the base, and a right clamp for clamping the end cover is arranged at the other end; a welding assembly is arranged on one side of the base, and a grinding assembly is arranged on the other side. It is characterized in that the welding assembly includes a driving part, an installation plate is arranged on the driving part, and a welding torch is arranged on the installation plate; the driving part can drive the welding torch to move in the horizontal and vertical directions to approach or move away from the weld seam.

[0007] The docking detection component includes a first guide rod and a second guide rod, which are symmetrically arranged on both sides of the welding torch. The first guide rod slidably penetrates through the mounting plate. A first guide wheel is provided at one end close to the left clamp, and a limiting plate is fixedly provided at the other end. A threaded rod is screwed on the limiting plate. One end of the threaded rod is rotatably connected to the mounting plate, and a end cap is provided at the other end. The second guide rod slidably penetrates through the mounting plate and the limiting plate. A second guide wheel is provided at one end close to the left clamp, and an end cover is provided at the other end. A spring is provided between the end cover and the limiting plate. A laser emitter is provided on the first guide wheel, and a laser receiver for receiving the optical signal emitted by the laser emitter is provided on the second guide wheel. Both the laser emitter and the laser receiver are connected to an external control system.

[0008] Further, the driving part includes a second transverse electric drive rod. One end of the second transverse electric drive rod is connected to one side surface of the base, and the other end is fixedly connected to a second electric telescopic rod. The second electric telescopic rod and the second transverse electric drive rod are arranged horizontally. The top of the second electric telescopic rod is connected to a second electric slide rail. A second slider is slidably arranged on the second electric slide rail. The second electric slide rail can drive the second slider to slide. The bottom of the second slider is connected to the top of the mounting plate.

[0009] Further, the right clamp includes a hydraulic rod arranged on the base. A right rotating wheel is rotatably provided at the driving end of the hydraulic rod. Two groups of first electric clamping jaws are symmetrically arranged on the right rotating wheel, and the two groups of first electric clamping jaws are respectively rotatably connected to the right rotating wheel.

[0010] Further, the left clamp includes a side plate. A left rotating wheel is rotatably provided on one side surface of the side plate. A first servo motor for driving the left rotating wheel to rotate is provided on the side plate. Two groups of rotating rods are symmetrically and rotatably arranged on the left rotating wheel. Two groups of second servo motors for driving the two groups of rotating rods to rotate are provided on the left rotating wheel. A second electric clamping jaw is provided at the end of the rotating rod far from the left rotating wheel.

[0011] Further, a transmission rod is fixedly connected to the right rotating wheel. The other end of the transmission rod penetrates through the left rotating wheel and exposes outside.

[0012] Further, a fine adjustment component for adjusting the position of the second electric clamping jaw is also provided on the rotating rod.

[0013] Further, the fine-tuning component includes a plate body with slots on its side. The plate body is fixedly connected to the rotating rod. A first lead screw is rotatably arranged between the two side surfaces of the inner wall of the slot of the plate body. A first motor for driving the first lead screw to rotate is arranged on the plate body. A sliding block is screwed onto the first lead screw, and the sliding block is in close contact with the inner wall of the slot of the plate body. A second lead screw is rotatably arranged at the bottom of the sliding block, and the other end of the second lead screw is slidably arranged at the bottom of the slot of the plate body. A second motor for driving the second lead screw to rotate is arranged at the top of the sliding block. A connecting plate is arranged on the second lead screw. One side surface of the connecting plate is screwed to the second lead screw, and the other side surface is connected to the second electric gripper.

[0014] Further, the grinding component includes a first horizontally electric drive rod. One end of the first horizontally electric drive rod is connected to one side surface of the base, and the other end is fixedly connected to a first electric telescopic rod. The first electric telescopic rod and the first horizontally electric drive rod are horizontally arranged. The top of the first electric telescopic rod is fixedly connected to a first electric slide rail. A first slider is connected to the first electric slide rail, and the first electric slide rail can drive the first slider to slide. A grinding part is arranged at the bottom of the first slider.

[0015] Further, the grinding part includes a vertical plate. The vertical plate is fixedly arranged at the bottom of the first slider. Two groups of side supports are symmetrically arranged on the side surface of the vertical plate close to the left fixture. A grinding wheel is rotatably arranged between the two groups of side supports. A drive motor for driving the grinding wheel to rotate is arranged on the side support on the right side.

[0016] The beneficial effects of the present invention: Through the provided docking detection component, before welding, the clamped outer cylinder and the cylinder end are driven to rotate one week. If the docking accuracy between the outer cylinder and the cylinder end is poor, the laser signal emitted upward by the laser emitter arranged on the first guide rod and received by the laser receiver arranged on the second guide rod will be deflected, so that the docking accuracy between the outer cylinder and the cylinder end can be judged in time; when it is detected that the docking accuracy between the outer cylinder and the cylinder end is poor, the positions of the outer cylinder and the cylinder end are adjusted to ensure their docking accuracy, thereby ensuring the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only for the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the first perspective of the embodiment of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the second perspective of the embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the first perspective structure of the left fixture in the embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the second perspective structure of the left fixture in the embodiment of the present invention;

[0022] Figure 5 Schematic diagram of the position structure of the fine-tuning component in the embodiment of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the second electric gripper in the embodiment of the present invention;

[0024] Figure 7 Schematic diagram of the internal structure of the fine-tuning component in the embodiment of the present invention;

[0025] Figure 8 Schematic diagram of the structure of the welding component in the embodiment of the present invention;

[0026] Figure 9 Schematic diagram of the first perspective structure of the mounting plate in the embodiment of the present invention;

[0027] Figure 10 Schematic diagram of the second perspective structure of the mounting plate in the embodiment of the present invention;

[0028] Figure 11 In the embodiment of the present invention Figure 10 Enlarged schematic diagram of A;

[0029] Figure 12 Schematic diagram of the third perspective structure of the mounting plate in the embodiment of the present invention;

[0030] Figure 13 In the embodiment of the present invention Figure 12 Enlarged schematic diagram of B;

[0031] Figure 14 Schematic diagram of the structure of the grinding component in the embodiment of the present invention;

[0032] Figure 15 In the embodiment of the present invention Figure 14 Enlarged schematic diagram of C.

[0033] The markings in the figure are:

[0034] 1. Base; 2. Right clamp; 201. Right rotating wheel; 202. First electric gripper; 203. Hydraulic rod; 3. Left clamp; 4. Welding assembly; 5. Grinding assembly; 501. First horizontal electric drive rod; 502. First electric telescopic rod; 503. First electric slide rail; 504. First slider; 505. Vertical plate; 506. Side support; 507. Grinding wheel; 508. Driving motor; 6. Side plate; 601. First servo motor; 7. Left rotating wheel; 701. Second servo motor; 8. Rotating rod; 9. Fine-tuning assembly; 901. Plate body; 902. First lead screw; 903. First motor; 904. Sliding block; 905. Second lead screw; 906. Connecting plate; 907. Second motor; 10. Second electric gripper; 11. Second horizontal electric drive rod; 1101. Second electric telescopic rod; 12. Second electric slide rail; 13. Second slider; 14. Mounting plate; 15. Welding torch; 16. First guide rod; 1601. First guide wheel; 17. Second guide rod; 1701. Second guide wheel; 18. Limiting plate; 19. End cover; 20. Spring; 21. Threaded rod; 22. Laser receiver; 23. Laser emitter; 24. Horizontal rod; 25. Transmission rod. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0036] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0037] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12, Figure 13 , Figure 14 , Figure 15 As shown in Figure 13 , Figure 14 , and Figure 15 , a welding device for machining the outer cylinder of an automotive shock absorber includes a base 1. A left clamp 3 for clamping the outer cylinder is provided at one end of the base 1, and a right clamp 2 for clamping the end cap 19 is provided at the other end. A welding assembly 4 is provided on one side of the base 1, and a grinding assembly 5 is provided on the other side. The welding assembly 4 includes a driving part, and a mounting plate 14 is provided on the driving part. A welding torch 15 is provided on the mounting plate 14. The driving part can drive the welding torch 15 to move in the horizontal and vertical directions to approach or move away from the weld seam.

[0038] The butt joint detection assembly includes a first guide rod 16 and a second guide rod 17, which are symmetrically arranged on both sides of the welding torch 15. The first guide rod 16 slidably passes through the mounting plate 14. A first guide wheel 1601 is provided at one end close to the left clamp 3, and a limit plate 18 is fixedly provided at the other end. A threaded rod 21 is screwed on the limit plate 18. One end of the threaded rod 21 is rotatably connected to the mounting plate 14, and a end cap is provided at the other end. The second guide rod 17 slidably passes through the mounting plate 14 and the limit plate 18. A second guide wheel 1701 is provided at one end close to the left clamp 3, and an end cap 19 is provided at the other end. A spring 20 is provided between the end cap 19 and the limit plate 18. A laser emitter 23 is provided on the first guide wheel 1601, and a laser receiver 22 for receiving the optical signal emitted by the laser emitter 23 is provided on the second guide wheel 1701. Both the laser emitter 23 and the laser receiver 22 are connected to an external control system. The external control system judges the butt joint accuracy between the outer cylinder and the cylinder end through the optical signal transmitted by the laser emitter 23 and the laser receiver 22. When the butt joint detection assembly detects that the butt joint accuracy between the outer cylinder and the cylinder end is poor, the external control system will adjust the position of the left clamp 3 to adjust the butt joint position between the outer cylinder and the cylinder end.

[0039] In this embodiment, the worker clamps the shock absorber outer cylinder on the left clamp 3 and clamps the cylinder end on the right clamp 2. After clamping, the outer cylinder and the cylinder end are butted. After butting, the driving part is controlled to adjust the position of the welding torch 15 so that the welding torch 15 is aligned with the weld seam to prepare for circumferential welding.

[0040] Among them, through the provided butt joint detection assembly, the operator adjusts the position of the limit plate 18 by rotating the screw on the end cap, thereby changing the length of the first guide rod 16 extending from the mounting plate 14. In this way, the distance between the tip of the welding torch 15 and the weld seam can be flexibly adjusted according to specific welding requirements to achieve the best welding effect. Then, the driving part adjusts the position of the welding torch 15 so that the welding torch 15 is perpendicular to the weld seam and makes the first guide rod 16 and the second guide rod 17 abut against both sides of the weld seam.

[0041] Before welding, the left fixture 3 and the right fixture 2 will first drive the clamped outer cylinder and the cylinder end to slowly rotate one week. During this process, if the docking accuracy between the outer cylinder and the cylinder end is high, at this time, the first guide rod 16 and the second guide rod 17 will always remain on the same horizontal line when moving along their surfaces, and the laser signal emitted upward by the laser emitter 23 received by the laser receiver 22 will remain constant; on the contrary, if the docking accuracy is insufficient, the laser signal received by the laser receiver 22 will deviate, indicating the existence of alignment error;

[0042] When it is detected that the docking accuracy between the outer cylinder and the cylinder end is poor, the external control system will adjust the position of the left fixture 3 to correct the docking position of the outer cylinder and the cylinder end, eliminate the deviation, ensure the docking accuracy of the two, and thus ensure the welding effect.

[0043] Preferably, the driving part includes a second horizontal electric drive rod 11. One end of the second horizontal electric drive rod 11 is connected to one side surface of the base 1, and the other end is fixedly connected with a second electric telescopic rod 1101. The second electric telescopic rod 1101 is horizontally arranged with the second horizontal electric drive rod 11. The top of the second electric telescopic rod 1101 is connected with a second electric slide rail 12. A second slider 13 is slidably arranged on the second electric slide rail 12. The second electric slide rail 12 can drive the second slider 13 to slide, and the bottom of the second slider 13 is connected to the top of the mounting plate 14;

[0044] Among them, the second horizontal electric drive rod 11 can drive the welding torch 15 to move longitudinally in the horizontal direction, the second electric telescopic rod 1101 can drive the welding torch 15 to move in the vertical direction, and the second electric slide rail 12 can drive the welding torch 15 to move horizontally in the horizontal direction, so that the welding torch 15 can move in multiple directions under the drive of the driving part, thereby ensuring that the welding torch 15 can move to the weld for welding.

[0045] Preferably, the right fixture 2 includes a hydraulic rod 203. The hydraulic rod 203 is arranged on the base 1. A right rotating wheel 201 is rotatably arranged at the driving end of the hydraulic rod 203. Two groups of first electric clamping jaws 202 are symmetrically arranged on the right rotating wheel 201. The two groups of first electric clamping jaws 202 are respectively rotatably connected to the right rotating wheel 201;

[0046] The left fixture 3 includes a side plate 6. A left rotating wheel 7 is rotatably arranged on one side surface of the side plate 6. A first servo motor 601 for driving the left rotating wheel 7 to rotate is arranged on the side plate 6. Two groups of rotating rods 8 are symmetrically and rotatably arranged on the left rotating wheel 7. Two groups of second servo motors 701 for driving the two groups of rotating rods 8 to rotate are arranged on the left rotating wheel 7. The end of the rotating rod 8 far from the left rotating wheel 7 is provided with a second electric clamping jaw 10;

[0047] A transmission rod 25 is fixedly connected to the right rotating wheel 201. The other end of the transmission rod 25 passes through the left rotating wheel 7 and extends outwards;

[0048] Among them, the transmission rod 25 enables the left rotation wheel 7 and the right rotation wheel 201 to rotate synchronously. Two groups of first electric grippers 202 and two groups of second electric grippers 10 are symmetrically arranged to form two clamping stations. The station closer to the welding assembly 4 is the welding station, and the station closer to the grinding assembly 5 is the grinding station; the hydraulic rod 203 can drive the clamped cylinder end to approach the clamped outer cylinder and dock to form a quasi-welded workpiece; the control second servo motor 701 can drive the second electric gripper 10 to rotate self, the second electric gripper 10 drives the outer cylinder to rotate self, and the contact between the outer cylinder and the cylinder end will drive the cylinder end to rotate synchronously, thereby enabling the workpiece to rotate self. The welding torch 15 can perform circumferential welding on the workpiece at the welding station, and the grinding assembly 5 can grind the workpiece at the grinding station;

[0049] When the workpiece at the welding station completes the welding process and the workpiece at the grinding station also completes the grinding process, first, control the two groups of first electric grippers 202 to release the completed workpieces they hold respectively, and then adjust the hydraulic rod 203 to return the right rotation wheel 201 to its initial position; after the right rotation wheel 201 is reset, further control the second electric gripper 10 at the grinding station to release the clamped ground workpiece; at this time, the worker can conveniently remove the ground workpiece from the grinding station; next, the worker independently controls the first electric gripper 202 and the second electric gripper 10 at the grinding station to clamp the next group of outer cylinders and cylinder ends to be ground; after ensuring firm clamping, adjust the position of the right rotation wheel 201 again by controlling the hydraulic rod 203 to make the outer cylinder and the cylinder end accurately dock; at the same time, the second electric gripper 10 at the welding station reclamps the workpiece at this station to prepare for subsequent welding or handling.

[0050] Subsequently, by controlling the first servo motor 601 to drive the left rotation wheel 7 to rotate, the just-completed welded workpiece is smoothly transferred to the grinding station to prepare for the grinding process; and the newly placed workpiece to be ground is moved to the welding station to start a new welding process

[0051] Preferably, a fine adjustment assembly 9 for adjusting the position of the second electric gripper 10 is further provided on the rotating rod 8;

[0052] The fine-tuning component 9 includes a plate body 901 with slots on its side. The plate body 901 is fixedly connected to the rotating rod 8. Between the two side faces of the inner wall of the slot of the plate body 901, a first lead screw 902 is rotatably arranged. On the plate body 901, there is a first motor 903 for driving the first lead screw 902 to rotate. A sliding block 904 is screwed onto the first lead screw 902. The sliding block 904 is in close contact with the inner wall of the slot of the plate body 901. At the bottom of the sliding block 904, a second lead screw 905 is rotatably arranged. The other end of the second lead screw 905 is slidably arranged at the bottom of the slot of the plate body 901. Specifically, a chute is opened at the bottom of the slot of the plate body 901. The other end of the second lead screw 905 is inserted into the chute and fits with the two side walls of the chute, reducing the shaking generated when the second lead screw 905 moves. The second lead screw 905 can rotate in the chute. At the top of the sliding block 904, there is a second motor 907 for driving the second lead screw 905 to rotate. On the second lead screw 905, there is a connecting plate 906. One side face of the connecting plate 906 is screwed to the second lead screw 905, and the other side face is connected to the second electric gripper 10.

[0053] Among them, the first motor 903 and the second motor 907 can respectively control the first lead screw 902 and the second lead screw 905 to rotate forward or backward, and thus can adjust the horizontal and vertical movements of the connecting plate 906 in the vertical direction, thereby adjusting the horizontal and vertical movements of the second electric gripper 10 in the vertical direction. When the docking detection component detects that the docking accuracy between the outer cylinder and the cylinder end is poor, the laser emitter 23 and the laser receiver 22 transmit the deviation data to the external control system. After receiving the data, the external control system sends working signals to the first motor 903 and the second motor 907, driving the first lead screw 902 and the second lead screw 905 to rotate forward or backward, adjusting the movement of the second electric gripper 10 to drive the outer cylinder to move to eliminate the deviation, so as to achieve the precise docking of the outer cylinder and the cylinder end.

[0054] Preferably, the grinding component 5 includes a first horizontally electric drive rod 501. One end of the first horizontally electric drive rod 501 is connected to one side face of the base 1, and the other end is fixedly connected with a first electric telescopic rod 502. The first electric telescopic rod 502 is horizontally arranged with the first horizontally electric drive rod 501. At the top of the first electric telescopic rod 502, a first electric slide rail 503 is fixedly connected. A first slider 504 is connected to the first electric slide rail 503. The first electric slide rail 503 can drive the first slider 504 to slide. A grinding part is arranged at the bottom of the first slider 504.

[0055] The grinding part includes a vertical plate 505. The vertical plate 505 is fixedly arranged at the bottom of the first slider 504. On the side face of the vertical plate 505 close to the left fixture 3, two groups of side supports 506 are symmetrically arranged. Between the two groups of side supports 506, a grinding wheel 507 is rotatably arranged. On the side support 506 on the right side, there is a drive motor 508 for driving the grinding wheel 507 to rotate.

[0056] Among them, the first horizontal electric drive rod 501 can drive the longitudinal movement of the grinding wheel 507 in the horizontal direction, the first electric slide rail 503 can drive the transverse movement of the grinding wheel 507 in the horizontal direction, and the first electric telescopic rod 502 can drive the vertical movement of the grinding wheel 507, so that the grinding wheel 507 can realize multi-directional movement driven by the driving part, thereby ensuring that the grinding wheel 507 can move to the weld for grinding; then start the driving motor 508 to drive the grinding wheel 507 to rotate, and the rotating grinding wheel 507 can grind the weld to eliminate the weld reinforcement and improve the welding effect.

[0057] Preferably, a horizontal rod 24 is provided between the first slider 504 and the second slider 13, so that the welding torch 15 and the grinding wheel 507 are always on the same horizontal line, without the need to adjust the use position of the grinding wheel 507 again, improving the use efficiency.

[0058] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0059] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A welding device for processing the outer cylinder of an automobile shock absorber, comprising a base (1), a left clamp (3) for clamping the outer cylinder is arranged at one end of the base (1), and a right clamp (2) for clamping the end cover (19) is arranged at the other end; a welding assembly (4) is arranged on one side of the base (1), and a grinding assembly (5) is arranged on the other side, characterized in that, The welding assembly (4) includes a driving part, on which a mounting plate (14) is provided, and a welding torch (15) is provided on the mounting plate (14); the driving part can drive the welding torch (15) to move in the horizontal and vertical directions to approach or move away from the weld seam; The butt joint detection assembly includes a first guide rod (16) and a second guide rod (17), which are symmetrically arranged on both sides of the welding torch (15); the first guide rod (16) slidably penetrates through the mounting plate (14), and a first guide wheel (1601) is provided at one end close to the left fixture (3), and a limiting plate (18) is fixedly provided at the other end; a threaded rod (21) is screwed on the limiting plate (18), one end of the threaded rod (21) is rotatably connected to the mounting plate (14), and a end cap is provided at the other end; the second guide rod (17) slidably penetrates through the mounting plate (14) and slidably penetrates through the limiting plate (18), and a second guide wheel (1701) is provided at one end close to the left fixture (3), and an end cover (19) is provided at the other end, and a spring (20) is provided between the end cover (19) and the limiting plate (18); a laser emitter (23) is provided on the first guide wheel (1601), and a laser receiver (22) for receiving the optical signal emitted by the laser emitter (23) is provided on the second guide wheel (1701), and both the laser emitter (23) and the laser receiver (22) are communicated with an external control system; The right fixture (2) includes a hydraulic rod (203), the hydraulic rod (203) is provided on the base (1), and a right rotating wheel (201) is rotatably provided at the driving end of the hydraulic rod (203), and two groups of first electric grippers (202) are symmetrically provided on the right rotating wheel (201), and the two groups of first electric grippers (202) are respectively rotatably connected to the right rotating wheel (201); The left fixture (3) includes a side plate (6), a left rotating wheel (7) is rotatably provided on one side surface of the side plate (6), a first servo motor (601) for driving the left rotating wheel (7) to rotate is provided on the side plate (6), two groups of rotating rods (8) are symmetrically and rotatably provided on the left rotating wheel (7), two groups of second servo motors (701) for driving the two groups of rotating rods (8) to rotate are provided on the left rotating wheel (7), and a second electric gripper (10) is provided at the end of the rotating rod (8) far from the left rotating wheel (7); A transmission rod (25) is fixedly connected to the right rotating wheel (201), and the other end of the transmission rod (25) penetrates through the left rotating wheel (7) and exposes outside; A fine adjustment assembly (9) for adjusting the position of the second electric gripper (10) is further provided on the rotating rod (8); The fine-tuning component (9) includes a plate body (901) with slots on its side. The plate body (901) is fixedly connected to the rotating rod (8). A first lead screw (902) is rotatably arranged between the two side surfaces of the inner wall of the slot of the plate body (901). A first motor (903) for driving the first lead screw (902) to rotate is arranged on the plate body (901). A sliding block (904) is screwed onto the first lead screw (902), and the sliding block (904) is in close contact with the inner wall of the slot of the plate body (901). A second lead screw (905) is rotatably arranged at the bottom of the sliding block (904). The other end of the second lead screw (905) is slidably arranged at the bottom of the slot of the plate body (901). A second motor (907) for driving the second lead screw (905) to rotate is arranged at the top of the sliding block (904). A connecting plate (906) is arranged on the second lead screw (905). One side surface of the connecting plate (906) is screwed onto the second lead screw (905), and the other side surface is connected to the second electric gripper (10). Before welding, the left clamp (3) and the right clamp (2) will first drive the clamped outer cylinder and the cylinder end to slowly rotate one week. If the docking accuracy is insufficient, the laser signal received by the laser receiver (22) will be offset, and the external control system will adjust the position of the left clamp (3) to correct the docking position of the outer cylinder and the cylinder end and eliminate the offset.

2. The welding device for processing the outer cylinder of an automotive shock absorber according to claim 1, wherein, The driving part includes a second horizontal electric drive rod (11). One end of the second horizontal electric drive rod (11) is connected to one side surface of the base (1), and the other end is fixedly connected to a second electric telescopic rod (1101). The second electric telescopic rod (1101) is horizontally arranged with the second horizontal electric drive rod (11). The top of the second electric telescopic rod (1101) is connected to a second electric slide rail (12). A second slider (13) is slidably arranged on the second electric slide rail (12). The second electric slide rail (12) can drive the second slider (13) to slide. The bottom of the second slider (13) is connected to the top of the mounting plate (14).

3. The welding device for processing the outer cylinder of an automotive shock absorber according to claim 1, wherein, The grinding component (5) includes a first horizontal electric drive rod (501). One end of the first horizontal electric drive rod (501) is connected to one side surface of the base (1), and the other end is fixedly connected to a first electric telescopic rod (502). The first electric telescopic rod (502) is horizontally arranged with the first horizontal electric drive rod (501). The top of the first electric telescopic rod (502) is fixedly connected to a first electric slide rail (503). A first slider (504) is connected to the first electric slide rail (503). The first electric slide rail (503) can drive the first slider (504) to slide. A grinding part is arranged at the bottom of the first slider (504).

4. The welding device for machining the outer cylinder of an automotive shock absorber according to claim 3, characterized in that, The grinding part includes a vertical plate (505), the vertical plate (505) is fixedly arranged at the bottom of the first slider (504), two groups of side supports (506) are symmetrically arranged on one side of the vertical plate (505) close to the left clamp (3), a grinding wheel (507) is rotatably arranged between the two groups of side supports (506), and a driving motor (508) for driving the grinding wheel (507) to rotate is arranged on the side support (506) on the right side.

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