A shock absorber connecting rod welding jig

Abstract

The present application relates to the technical field of shock absorber, and discloses a welding fixture for connecting rod of shock absorber, which is used for positioning and clamping the connecting main pipe beam and the mounting bracket of the shock absorber, and adopts pneumatic pressing to ensure the reliability of welding and the stability of size, and can greatly reduce the operation complexity of clamping and taking out. The sliding and overturning shifting mechanism is used to leave the clamping space of the bracket and the taking-out space of the welded assembly, and facilitates taking out.

Description

Technical Field

[0001] This invention relates to the technical field of shock absorbers, specifically a welding fixture for shock absorber connecting rods. Background Technology

[0002] The shock absorber connecting rod is a crossbeam that connects the tops of the two front shock absorbers of a car. The connecting rod has multiple brackets and mounting holes in the middle for installing and fixing related components in the front engine compartment. It is a beam structure that improves the stability of the front shock absorber. When processing the shock absorber connecting rod, the front hood mounting bracket and the grounding connecting bracket need to be welded to the main shock absorber beam, which requires the use of welding fixtures.

[0003] Traditional welding fixtures, when clamping shock absorber connecting rods, struggle to adequately limit the position based on the length of the connecting rods and the welding positions and angles of the front hatch mounting bracket and grounding connection bracket. This results in inaccurate welding positions and angles of the front hatch mounting bracket and grounding connection bracket, leading to insufficient reliability and stability. Furthermore, traditional fixtures have low automation in installation and disassembly, requiring cumbersome and inefficient manual operation. Additionally, the multi-angle clamping structure can obstruct the space for removing the welded assembly, making it difficult to retrieve the part after welding. Summary of the Invention

[0004] The purpose of this invention is to provide a welding fixture for shock absorber connecting rods, so as to solve the problems mentioned in the background art of the current traditional welding fixtures, which are not accurate enough in terms of welding position and angle and are inefficient.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding fixture for a shock absorber connecting rod, comprising a fixture support base plate, wherein two sets of positioning and clamping mechanisms for the two ends of a shock absorber connecting main beam are fixedly installed at both ends of the upper part of the fixture support base plate by bolts; three sets of positioning and clamping mechanisms for the body of the shock absorber connecting main beam are fixedly installed at one side of the fixture support base plate by bolts; four sets of fixed positioning and clamping mechanisms are fixedly installed at one side of the fixture support base plate; two sets of sliding and rotating positioning mechanisms are fixedly installed at one end of the fixture support base plate by bolts; welding workstation connecting frames are fixedly installed at both ends of the fixture support base plate by bolts; a control button box is provided at one side of the fixture support base plate; and fixture storage support feet are fixedly connected to both sides of the bottom of the fixture support base plate.

[0006] Furthermore, the positioning and clamping mechanism at both ends of the shock absorber connecting main beam includes a first mounting base, on which a positioning pin mounting base is fixedly mounted by bolts, and a connecting positioning pin is fixedly connected to the positioning pin mounting base. A first clamping block and a second clamping block are fixedly mounted on the first mounting base by bolts. A first rotating block is movably connected to the first mounting base via a rotating shaft, and a first movable clamping block is fixedly connected to the first rotating block. A first cylinder is movably mounted on one side of the first mounting base via a rotating shaft, and the output end of the first cylinder is movably connected to the first rotating block via a rotating shaft.

[0007] Furthermore, the first clamping block and the first movable clamping block are positioned opposite each other, and the first clamping block is in contact with the arc-shaped surfaces at both ends of the shock absorber connecting rod.

[0008] Furthermore, the shock absorber connecting main beam positioning and clamping mechanism includes a second mounting base. An upper limiting block, a rear limiting block, and a bottom limiting block are fixedly connected to the second mounting base. The upper limiting block, the rear limiting block, and the bottom limiting block form a square slot. A second rotating block is movably connected to one side of the upper part of the second mounting base via a rotating shaft. A front clamping block is fixedly connected to the second rotating block. A second cylinder is movably connected to one side of the second mounting base via a rotating shaft. The output end of the second cylinder is movably connected to the second rotating block via a rotating shaft.

[0009] Furthermore, the upper limiting block, the rear limiting block, the bottom limiting block, and the front clamping block together form a square slot, and the size of the square slot matches the cross-sectional size of the shock absorber connecting rod.

[0010] Furthermore, the fixed positioning clamping mechanism includes a third mounting base, on which a first motor is fixedly mounted. The output end of the first motor is fixedly connected to a first lead screw. The first lead screw is driven by a lead screw nut and a first telescopic connecting block. The first telescopic connecting block is movably connected to a second movable pressing block via a rotating shaft. The second movable pressing block is movably connected to a first rotating connecting rod via a rotating shaft. One end of the first rotating connecting rod is movably connected to the third mounting base via a rotating shaft. A fixing block is provided on the upper part of the third mounting base. A fixing claw is fixedly connected to the front part of the fixing block. A second motor is provided at the rear part of the fixing block. The output end of the second motor is fixedly connected to a second lead screw. The second lead screw is driven by a telescopic positioning pin via a threaded connection.

[0011] Furthermore, the telescopic positioning pin is slidably connected to the fixed block, and the telescopic positioning pin cannot rotate within the fixed block.

[0012] Furthermore, the sliding and rotating positioning mechanism includes a fourth mounting base. A third rotating block is movably connected to the upper end of the fourth mounting base via a rotating shaft. A third cylinder is movably connected to one side of the fourth mounting base via a rotating shaft. The third cylinder is movably connected to the third rotating block via a rotating shaft. A limit pad is provided between the top of the fourth mounting base and the third rotating block. A fixed connecting block is fixedly connected to the third rotating block. A fixed clamping block is fixedly connected to the fixed connecting block via bolts. Two fixed pins are provided through the fixed clamping block. A second rotating connecting rod is movably connected to the lower part of the fixed connecting block via a rotating shaft. A third movable pressing block is movably connected to one end of the second rotating connecting rod via a rotating shaft. A second telescopic connecting block is movably connected to the third movable pressing block via a rotating shaft. A third motor is fixedly mounted on the fixed connecting block. A third lead screw is fixedly connected to the output end of the third motor. The third lead screw is connected to the second telescopic connecting block via a lead screw nut.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention provides a welding fixture for a shock absorber connecting rod. By using a set of fixtures, it is convenient to position and clamp the main connecting beam of the shock absorber to the mounting bracket. At the same time, pneumatic clamping is used to ensure the reliability of welding and the stability of dimensions, and it can also greatly reduce the cumbersome operation of clamping and removing parts. The sliding and flipping transfer mechanism makes room for bracket clamping and removal of the welded assembly, which is convenient for removing parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance and structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the appearance and structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the positioning and clamping mechanism at both ends of the main beam connecting the shock absorber of the present invention.

[0018] Figure 4 This is a schematic diagram of the positioning and clamping mechanism for the main beam connecting the shock absorber of the present invention.

[0019] Figure 5 This is a schematic diagram of the fixed positioning and clamping mechanism of the present invention. Figure 1 ;

[0020] Figure 6 This is a schematic diagram of the fixed positioning and clamping mechanism of the present invention. Figure 2 ;

[0021] Figure 7 This is a schematic diagram of the fixed positioning and clamping mechanism of the present invention. Figure 3 ;

[0022] Figure 8 This is a schematic diagram of the sliding and rotating positioning mechanism of the present invention. Figure 1 ;

[0023] Figure 9 This is a schematic diagram of the sliding and rotating positioning mechanism of the present invention. Figure 2 ;

[0024] Figure 10 This is a schematic diagram of the connecting rod structure of the shock absorber to be welded according to the present invention.

[0025] Numbered in the diagram: 1. Fixture support base plate; 2. Positioning and clamping mechanism at both ends of the shock absorber connecting main beam; 201. First mounting seat; 202. Positioning pin mounting seat; 203. Connecting positioning pin; 204. First clamping block; 205. Second clamping block; 206. First rotating block; 207. First movable clamping block; 208. First cylinder; 3. Positioning and clamping mechanism for the shock absorber connecting main beam; 301. Second mounting seat; 302. Upper limit block; 303. Rear limit block; 304. Bottom limit block; 305. Second rotating block; 306. Front clamping block; 3 07. Second cylinder; 4. Fixed positioning clamping mechanism; 401. Third mounting base; 402. First motor; 403. First lead screw; 404. First telescopic connecting block; 405. Second movable clamping block; 406. First rotating connecting rod; 407. Fixed block; 408. Fixed claw; 409. Second motor; 410. Second lead screw; 411. Telescopic positioning pin; 5. Sliding and rotating positioning mechanism; 501. Fourth mounting base; 502. Third rotating block; 503. Third cylinder; 504. Limiting pad; 505. Fixed connecting block; 50 6. Fixed clamping block; 507. Fixed pin; 508. Second rotating connecting rod; 509. Third movable clamping block; 510. Second telescopic connecting block; 511. Third motor; 512. Third lead screw; 6. Welding workstation connecting frame; 7. Control button box; 8. Fixture storage support foot; 9. Shock absorber connecting rod to be welded; 901. Shock absorber main beam; 902. Connecting hole; 903. Front hatch cover mounting bracket; 904. Grounding connection bracket; 2-1. Positioning and clamping mechanism at both ends of the shock absorber connecting main beam; 2-2. Both ends of the shock absorber connecting main beam Positioning and clamping mechanism two; 3-1, Positioning and clamping mechanism one for the main beam connecting the shock absorber; 3-2, Positioning and clamping mechanism two for the main beam connecting the shock absorber; 3-3, Positioning and clamping mechanism three for the main beam connecting the shock absorber; 4-1, Fixed positioning and clamping mechanism one; 4-2, Fixed positioning and clamping mechanism two; 4-3, Fixed positioning and clamping mechanism three; 4-4, Fixed positioning and clamping mechanism four; 5-1, Sliding and rotating positioning mechanism one; 5-2, Sliding and rotating positioning mechanism two; 6-1, Welding workstation connection mechanism one; 6-2, Welding workstation connection mechanism two. Detailed Implementation

[0026] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0028] Combination Figure 1 and Figure 2 A welding fixture for a shock absorber connecting rod includes a fixture support base plate 1. Two sets of positioning and clamping mechanisms 2 for the ends of the shock absorber connecting main beam are bolted to the upper two ends of the fixture support base plate 1. Three sets of positioning and clamping mechanisms 3 for the body of the shock absorber connecting main beam are bolted to one side of the fixture support base plate 1. Four sets of fixed positioning and clamping mechanisms 4 are bolted to one side of the fixture support base plate 1. Two sets of sliding and rotating positioning mechanisms 5 are bolted to one end of the fixture support base plate 1. A welding workstation connecting frame 6 is bolted to both ends of the fixture support base plate 1. A control button box 7 is located on one side of the fixture support base plate 1. Fixture storage support feet 8 are fixedly connected to both sides of the bottom of the fixture support base plate 1.

[0029] Please see Figure 3 and Figure 10 The shock absorber connecting main beam end positioning and clamping mechanism 2 includes a first mounting base 201, a positioning pin mounting base 202 fixedly mounted on the first mounting base 201 by bolts, a connecting positioning pin 203 fixedly connected to the positioning pin mounting base 202, a first clamping block 204 and a second clamping block 205 fixedly mounted on the first mounting base 201 by bolts, a first rotating block 206 movably connected to the first mounting base 201 via a rotating shaft, a first movable clamping block 207 fixedly connected to the first rotating block 206, a first cylinder 208 movably mounted on one side of the first mounting base 201 via a rotating shaft, the output end of the first cylinder 208 movably connected to the first rotating block 206 via a rotating shaft, the first clamping block 204 and the first movable clamping block 207 being positioned opposite each other, the first clamping... The clamping block 204 fits into the arc-shaped surfaces at both ends of the shock absorber connecting rod. When clamping the main shock absorber beam 901, the connecting holes 902 at both ends of the main shock absorber beam 901 can be fitted onto the connecting positioning pins 203 on the positioning clamping mechanism 2 at both ends of the main shock absorber beam. The first cylinder 208 is activated by the control button box 7. The first cylinder 208 will drag the first rotating block 206 to rotate around the rotating axis, thereby causing the first movable clamping block 207 to move. Through the cooperation of the first movable clamping block 207 with the first clamping block 204 and the second clamping block 205, one end of the main shock absorber beam 901 is clamped. Both ends of the main shock absorber beam 901 are clamped and fixed by the two sets of positioning clamping mechanisms 2 at both ends of the main shock absorber beam, which can prevent the main shock absorber beam 901 from rotating.

[0030] Please see Figure 4 and Figure 10The shock absorber connecting main beam positioning and clamping mechanism 3 includes a second mounting base 301. An upper limiting block 302, a rear limiting block 303, and a bottom limiting block 304 are fixedly connected to the second mounting base 301. These three blocks form a square slot. A second rotating block 305 is movably connected to one side of the upper part of the second mounting base 301 via a rotating shaft. A front clamping block 306 is fixedly connected to the second rotating block 305. A second cylinder 307 is movably connected to one side of the second mounting base 301 via a rotating shaft. The output end of the second cylinder 307 is movably connected to the second rotating block 305 via a rotating shaft. The upper limiting block 302, rear limiting block 303, bottom limiting block 304, and front clamping block 306 together form a square slot. The square slot is designed to match the cross-sectional dimensions of the shock absorber connecting rod, allowing the shock absorber main beam 901 to be secured within the square slot formed by the upper limiting block 302, rear limiting block 303, and bottom limiting block 304 of the shock absorber connecting main beam positioning and clamping mechanism 3. The three sets of shock absorber connecting main beam positioning and clamping mechanisms 3 position the shock absorber main beam 901. During clamping and fixing, the second cylinder 307 can be activated via the control button box 7. The second cylinder 307 starts and pushes the second rotating block 305, causing it to rotate around the rotating axis. This causes the front clamping block 306 to press the shock absorber main beam 901, which is secured within the square slot formed by the upper limiting block 302, rear limiting block 303, and bottom limiting block 304, thus achieving positioning.

[0031] Please see Figure 5 , Figure 6 Figure 7 and Figure 10The fixed positioning clamping mechanism 4 includes a third mounting base 401, on which a first motor 402 is fixedly mounted. A first lead screw 403 is fixedly connected to the output end of the first motor 402. The first lead screw 403 is connected to a first telescopic connecting block 404 via a lead screw nut. A second movable pressing block 405 is movably connected to the first telescopic connecting block 404 via a rotating shaft. A first rotating connecting rod 406 is movably connected to the second movable pressing block 405 via a rotating shaft. One end of the first rotating connecting rod 406 is movably connected to the third mounting base 401 via a rotating shaft. A fixing block 407 is provided on the upper part of the third mounting base 401. A fixing claw 408 is fixedly connected to the front of the fixing block 407. A second motor 409 is provided at the rear of the fixing block 407. A second lead screw 410 is fixedly connected to the output end of the second motor 409. A telescopic positioning pin 411 is connected to the second lead screw 410 via a threaded drive. The telescopic positioning pin 411 is slidably connected to the fixing block 407. Furthermore, the telescopic positioning pin 411 cannot rotate within the fixed block 407. Therefore, after the shock absorber main beam 901 is clamped, the four front hatch cover mounting brackets 903 can be placed between the fixed claws 408 on the four sets of fixed positioning clamping mechanisms 4. Then, the first motor 402 is started via the control button box 7. The first motor 402 drives the first lead screw 403 to rotate. As the first lead screw 403 rotates, it drives the first telescopic connecting block 404 to move outward along the axial direction of the first lead screw 403 via the lead screw nut transmission. This pushes the second movable clamping block 405 to rotate around the rotation axis, causing the second movable clamping block 405 and the fixed claws 408 to cooperate in clamping the front hatch cover mounting bracket 903. Simultaneously, the second motor 409 is started, driving the second lead screw 410 to rotate. Since the telescopic positioning pin 411 is slidably connected to the fixed block 407... Furthermore, the telescopic positioning pin 411 cannot rotate within the fixed block 407. Therefore, the second lead screw 410 can drive the telescopic positioning pin 411 to extend outward and insert into the mounting hole on the front hatch cover mounting bracket 903 through threaded engagement, thereby achieving precise positioning and fixing the front hatch cover mounting bracket 903 to one side of the shock absorber main beam 901 for easy welding.

[0032] Please see Figures 8-10The sliding and rotating positioning mechanism 5 includes a fourth mounting base 501. A third rotating block 502 is movably connected to the upper end of the fourth mounting base 501 via a rotating shaft. A third cylinder 503 is movably connected to one side of the fourth mounting base 501 via a rotating shaft. The third cylinder 503 is movably connected to the third rotating block 502 via a rotating shaft. A limit pad 504 is provided between the top of the fourth mounting base 501 and the third rotating block 502. A fixed connecting block 505 is fixedly connected to the third rotating block 502. A fixing clamp is fixedly connected to the fixed connecting block 505 by bolts. A clamping block 506 has two fixing pins 507 passing through it. A second rotating connecting rod 508 is movably connected to the lower part of the fixed connecting block 505 via a rotating shaft. One end of the second rotating connecting rod 508 is movably connected to a third movable pressing block 509 via a rotating shaft. The third movable pressing block 509 is movably connected to a second telescopic connecting block 510 via a rotating shaft. A third motor 511 is fixedly mounted on the fixed connecting block 505. The output end of the third motor 511 is fixedly connected to a third lead screw 512. Rod 512 is connected to the second telescopic connecting block 510 via a lead screw nut, allowing two grounding connecting brackets 904 to be placed between the fixed clamping block 506 and the third movable clamping block 509 on the two sets of sliding and rotating positioning mechanisms 5. Then, the third motor 511 is started, driving the third lead screw 512 to rotate. When the third lead screw 512 rotates, it drives the second telescopic connecting block 510 to move downward along the axial direction of the third lead screw 512 via the lead screw nut, thereby pushing the third movable clamping block 509 to rotate and interact with the fixed clamping block. 506 clamps the grounding connection bracket 904, while the fixing pin 507 is inserted into the mounting hole on the grounding connection bracket 904 for precise positioning. Then, the third cylinder 503 can be activated by the control button box 7. The third cylinder 503 pushes the third rotating block 502 to rotate around the rotation axis and presses the grounding connection bracket 904 onto the shock absorber main beam 901 for easy welding. When removing the welded shock absorber connecting rod, the third rotating block 502 can be rotated in the opposite direction around the rotation axis to open up the removal space for easy removal.

[0033] Working principle: When using this shock absorber connecting rod welding fixture, the welding workstation can first be fixedly installed above the fixture support base plate 1 through the welding workstation connecting frame 6. Then, the shock absorber main beam 901 is clamped in the square slot formed by the upper limit block 302, the rear limit block 303, and the bottom limit block 304 of the shock absorber connecting main beam positioning clamping mechanism 3. The three sets of shock absorber connecting main beam positioning clamping mechanisms 3 position the shock absorber main beam 901. When clamping and fixing, the second cylinder 307 can be opened by controlling the button box 7. The second cylinder 307 starts and pushes the second rotating block 305, causing the second rotating block 305 to rotate around the rotating axis. This causes the front clamping block 306 to press the shock absorber main beam 901 clamped in the square slot formed by the upper limit block 302, the rear limit block 303, and the bottom limit block 304, thereby achieving positioning.

[0034] When clamping the main shock absorber beam 901, the connecting holes 902 at both ends of the main shock absorber beam 901 can be fitted onto the connecting positioning pins 203 on the positioning clamping mechanism 2 at both ends of the main shock absorber beam. The first cylinder 208 is activated by the control button box 7. The first cylinder 208 will drag the first rotating block 206 to rotate around the rotating shaft, thereby causing the first movable clamping block 207 to move. Through the cooperation of the first movable clamping block 207 with the first clamping block 204 and the second clamping block 205, one end of the main shock absorber beam 901 is clamped. Both ends of the main shock absorber beam 901 are clamped and fixed by the two sets of positioning clamping mechanisms 2 at both ends of the main shock absorber beam, which can prevent the main shock absorber beam 901 from rotating.

[0035] After the shock absorber main beam 901 is clamped, the four front hatch cover mounting brackets 903 can be placed between the fixed claws 408 on the four sets of fixed positioning clamping mechanisms 4. Then, the first motor 402 is started via the control button box 7. The first motor 402 drives the first lead screw 403 to rotate. When the first lead screw 403 rotates, it drives the first telescopic connecting block 404 to move outward along the axis of the first lead screw 403 through the lead screw nut transmission. This pushes the second movable clamping block 405 to rotate around the rotation axis, so that the second movable clamping block 405 and the fixed claws 408 cooperate to clamp the front hatch cover mounting bracket 903. At the same time, the second motor 409 is started, which drives the second lead screw 410 to rotate. Since the telescopic positioning pin 411 is slidably connected to the fixed block 407, the second motor 409 drives the second lead screw 410 to rotate. Furthermore, the telescopic positioning pin 411 cannot rotate within the fixed block 407. Therefore, the second lead screw 410 can drive the telescopic positioning pin 411 to extend outward and insert into the mounting hole on the front hatch cover mounting bracket 903 through threaded engagement, thereby achieving precise positioning and fixing the front hatch cover mounting bracket 903 to one side of the shock absorber main beam 901 for easy welding.

[0036] Then, the two grounding connection brackets 904 can be placed between the fixed clamping block 506 and the third movable clamping block 509 on the two sets of sliding and rotating positioning mechanisms 5, respectively. Then, the third motor 511 is started, driving the third lead screw 512 to rotate. When the third lead screw 512 rotates, it will drive the second telescopic connection block 510 to move downward along the axis of the third lead screw 512 through the lead screw nut transmission, thereby pushing the third movable clamping block 509 to rotate and cooperate with the fixed clamping block 506 to clamp the grounding connection bracket 904, and fix it at the same time. Pin 507 is inserted into the mounting hole on the grounding connection bracket 904 for precise positioning. Then, the third cylinder 503 can be activated by the control button box 7. The third cylinder 503 will push the third rotating block 502 to rotate around the rotation axis and press the grounding connection bracket 904 onto the shock absorber main beam 901 for easy welding. When removing the welded shock absorber connecting rod, the third rotating block 502 can be rotated in the opposite direction around the rotation axis to open up the removal space and facilitate removal. This completes a shock absorber connecting rod welding fixture.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for a shock absorber connecting rod, comprising a fixture support base plate (1), characterized in that: The upper two ends of the clamp support base plate (1) are fixedly installed with shock absorber connecting main beam positioning clamping mechanism (2) by bolts. There are two sets of shock absorber connecting main beam positioning clamping mechanism (2). One side of the clamp support base plate (1) is fixedly installed with shock absorber connecting main beam body positioning clamping mechanism (3) by bolts. There are three sets of shock absorber connecting main beam body positioning clamping mechanism (3). One side of the clamp support base plate (1) is fixedly installed with fixed positioning clamping mechanism (4) by bolts. There are four sets of fixed positioning clamping mechanism (4). One end of the clamp support base plate (1) is fixedly installed with sliding and rotating positioning mechanism (5) by bolts. There are two sets of sliding and rotating positioning mechanism (5). Both ends of the clamp support base plate (1) are fixedly installed with welding workstation connecting frame (6) by bolts. One side of the clamp support base plate (1) is provided with control button box (7). The bottom two sides of the clamp support base plate (1) are fixedly connected with clamp storage support feet (8). The sliding and rotating positioning mechanism (5) includes a fourth mounting base (501), the upper end of which is movably connected to a third rotating block (502) via a rotating shaft. A third cylinder (503) is movably connected to one side of the fourth mounting base (501) via a rotating shaft. The third cylinder (503) is movably connected to the third rotating block (502) via a rotating shaft. A limit pad (504) is provided between the top of the fourth mounting base (501) and the third rotating block (502). A fixed connecting block (505) is fixedly connected to the third rotating block (502). A fixed clamping block (506) is fixedly connected to the fixed connecting block (505) via bolts. A fixing pin (507) is inserted through the fixed connecting block (506). Two fixing pins (507) are provided. A second rotating connecting rod (508) is movably connected to the bottom of the fixed connecting block (505) through a rotating shaft. A third movable pressing block (509) is movably connected to one end of the second rotating connecting rod (508) through a rotating shaft. A second telescopic connecting block (510) is movably connected to the third movable pressing block (509) through a rotating shaft. A third motor (511) is fixedly installed on the fixed connecting block (505). A third lead screw (512) is fixedly connected to the output end of the third motor (511). The third lead screw (512) is connected to the second telescopic connecting block (510) through a lead screw nut.

2. The shock absorber connecting rod welding fixture according to claim 1, characterized in that: The shock absorber connecting main beam end positioning and clamping mechanism (2) includes a first mounting base (201), a positioning pin mounting base (202) is fixedly mounted on the first mounting base (201) by bolts, a connecting positioning pin (203) is fixedly connected to the positioning pin mounting base (202), a first clamping block (204) and a second clamping block (205) are fixedly mounted on the first mounting base (201) by bolts, a first rotating block (206) is movably connected to the first mounting base (201) by a rotating shaft, a first movable clamping block (207) is fixedly connected to the first rotating block (206), a first cylinder (208) is movably mounted on one side of the first mounting base (201) by a rotating shaft, and the output end of the first cylinder (208) is movably connected to the first rotating block (206) by a rotating shaft.

3. The shock absorber connecting rod welding fixture according to claim 2, characterized in that: The first clamping block (204) and the first movable clamping block (207) are positioned opposite each other, and the first clamping block (204) is in contact with the arc-shaped surfaces at both ends of the shock absorber connecting rod.

4. The shock absorber connecting rod welding fixture according to claim 1, characterized in that: The shock absorber connecting main beam positioning and clamping mechanism (3) includes a second mounting base (301). An upper limiting block (302), a rear limiting block (303), and a bottom limiting block (304) are fixedly connected to the second mounting base (301). The upper limiting block (302), the rear limiting block (303), and the bottom limiting block (304) form a square slot. A second rotating block (305) is movably connected to one side of the upper part of the second mounting base (301) through a rotating shaft. A front clamping block (306) is fixedly connected to the second rotating block (305). A second cylinder (307) is movably connected to one side of the second mounting base (301) through a rotating shaft. The output end of the second cylinder (307) is movably connected to the second rotating block (305) through a rotating shaft.

5. A shock absorber connecting rod welding fixture according to claim 4, characterized in that: The upper limiting block (302), the rear limiting block (303), the bottom limiting block (304), and the front clamping block (306) together form a square slot, and the size of the square slot matches the cross-sectional size of the shock absorber connecting rod.

6. The shock absorber connecting rod welding fixture according to claim 1, characterized in that: The fixed positioning clamping mechanism (4) includes a third mounting base (401), on which a first motor (402) is fixedly mounted. A first lead screw (403) is fixedly connected to the output end of the first motor (402). The first lead screw (403) is connected to a first telescopic connecting block (404) via a lead screw nut. A second movable pressing block (405) is movably connected to the first telescopic connecting block (404) via a rotating shaft. The second movable pressing block (405) is movably connected to a first rotating... The connecting rod (406) has one end movably connected to the third mounting base (401) via a rotating shaft. The third mounting base (401) has a fixing block (407) on its upper part. The fixing block (407) has a fixing claw (408) fixedly connected to its front part. The fixing block (407) has a second motor (409) at its rear part. The output end of the second motor (409) is fixedly connected to a second lead screw (410). The second lead screw (410) is connected to a telescopic positioning pin (411) via a threaded drive.

7. A shock absorber connecting rod welding fixture according to claim 6, characterized in that: The telescopic positioning pin (411) is slidably connected to the fixed block (407), and the telescopic positioning pin (411) cannot rotate within the fixed block (407).

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