Automobile sheet metal surface quick repair equipment

Abstract

The present invention relates to the field of sheet metal repair technology, in particular to a quick repair device for automobile sheet metal surfaces, comprising a base and a pulling block, wherein the bottom of the base is provided with a pneumatic adsorption mechanism for adsorbing a fixed position on the ground, the top of the base is fixedly connected to a support rod, the support rod is provided with a pulling mechanism for pulling the pulling block to move, both sides of the pulling block are provided with a pulling block, and the side walls of the pulling block and the pulling block are fixedly connected to an upper cylinder. The present invention can store the upper rod and the lower rod when the lower cylinder is inserted into the hole on the sheet metal part through the arrangement of structures such as the upper cylinder, the lower cylinder, the upper rod, the lower rod and the clamping mechanism. During the clamping process, the upper rod and the lower rod can be automatically extended by rotating the fastening bolt using an electric gun, and the sheet metal can be clamped on the positioning ring, thereby eliminating the need for workers to screw in nuts and facilitating installation in a narrow space. At the same time, after the upper rod and the lower rod are folded, the area of ​​the sheet metal squeezed is larger, which is more conducive to pulling the sheet metal for repair and reducing the possibility of deformation in the pulling area.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal repair, and in particular to a quick repair device for automobile sheet metal surfaces. Background Art

[0002] Cars are prone to accidental collisions while driving. The dents caused by collisions can be repaired through simple car sheet metal repairs. Existing repair equipment mainly fixes the pulling end on the car sheet metal surface through welding, riveting or bolting, and then uses the hand hoist on the equipment to stretch the collided vehicle for repair. The operator controls the stretching force through the hand hoist until the sheet metal surface returns to the ideal flat state, thereby completing the rapid repair of the car sheet metal.

[0003] In the pull-and-repair of parts like doors, fenders, and hoods, bolts are typically inserted through holes in the sheet metal to be repaired, and nuts are then tightened onto the bolts. This ensures that the sheet metal is stretched and repaired by pulling the bolts. However, this connection method presents some practical problems. When the vehicle is parked at the workstation, it is surrounded by lifts and other body parts, making bolt and nut connections difficult to install in confined spaces. Faced with thin cavities like doors and fenders, the cavities are insufficiently deep, forcing workers to reach in from the side or below. Since their elbows cannot be straightened, the wrench has no wiggle room, so they can only tighten blindly with their fingertips. A single bolt typically takes three to five minutes to complete, and if the nut falls off, the interior must be disassembled and searched for. The space limit prevents the required torque from being met, and concentrated tension can easily tear the screw holes. When faced with multiple pull points, the same action must be repeated at each point, significantly reducing repair efficiency and increasing labor and time costs.

[0004] Therefore, a kind of automobile sheet metal surface quick repair equipment is proposed to solve the above-mentioned problem. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a quick repair device for automobile sheet metal surfaces.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: a kind of automobile sheet metal surface quick repair equipment, including a base and a pulling block, the bottom of the base is provided with a pneumatic adsorption mechanism for adsorbing a fixed position on the ground, the top of the base is fixedly connected to a support rod, the support rod is provided with a pulling mechanism for pulling the pulling block to move, both sides of the pulling block are provided with a pulling block, the pulling block and the side walls of the pulling block are fixedly connected to an upper cylinder, the side walls of the upper cylinder are fixedly connected to a lower cylinder, and the outer wall of the lower cylinder is provided with a The outer wall of the bracket is rotatably connected to the inner side of the side groove, and a limit plate for limiting the position of the upper and lower rods is fixedly connected to the inner side of the upper slide, and a clamping mechanism is also provided for first pulling the upper slide and then pulling the lower slide.

[0007] In the above technical solution, further, the side wall of the pulling block is fixedly connected with a hook ring, the hook of the pulling mechanism is hooked on the hook ring, the upper rod and the inner side of the upper slide are connected by a torsion spring, the upper rod and the lower rod are connected by a torsion spring, and the side groove and the bracket are connected by a torsion spring.

[0008] In the above technical solution, further, the clamping mechanism includes a fastening bolt, the upper slide seat side wall is fixedly connected with a pull rope, the lower slide seat side wall is provided with a circular hole, the top of the pulling block and the pulling block are both provided with a top groove, the top groove is connected through the inside of the upper cylinder, the inner side of the top groove is slidably connected with a top plate, the other end of the pull rope passes through the circular hole and is fixedly connected to the side wall of the top plate, the pulling block and the top of the pulling block are both fixedly connected to the fixed block, and three fastening bolts are provided, and the three fastening bolts are all threaded through and connected to the inner side wall of the fixed block, the side wall of the fastening bolt is rotatably connected to the side wall of the top plate, a return spring is fixedly connected between the side wall of the lower slide seat and the inner side of the lower cylinder, and the bottom end of the straight groove is provided with a limiting structure for limiting the sliding of the lower slide seat.

[0009] The cam is secured to the bottom of the L-shaped slot and has a pivot place on the top of the T-block, which is a mark of the position of the T-block in the top and bottom of the L-shaped slot.

[0010] In the above technical solution, further, a guide roller is rotatably connected to the inner side of the top groove, and the pull ropes all pass through the outer wall of the guide roller.

[0011] In the above technical solution, further, the positioning rings located next to the pulling block are slidably connected to the outer wall of the corresponding lower cylinder, the positioning rings located next to the pulling block are fixedly connected to the outer wall of the corresponding lower cylinder, and the side walls of the positioning rings located next to the pulling block are fixedly connected to a pair of adjusting rods, and the side walls of the upper cylinder are provided with adjustment grooves relative to the positions next to the adjusting rods, the adjusting rods are slidably connected to the inner sides of the adjustment grooves, and the side walls of the adjustment grooves are provided with through grooves that penetrate the outer wall of the upper cylinder, and U-shaped blocks are fixedly connected between the side walls of the adjusting rods relative to the positions in the through grooves.

[0012] In the above technical solution, further, the side wall of the U-shaped block is threadedly connected with an adjusting bolt, the outer wall of the upper cylinder is provided with a plurality of insertion holes equidistantly relative to the side wall of the adjusting bolt, and the side end of the adjusting bolt is inserted into the inner side of one of the insertion holes.

[0013] In the above technical solution, further, the side walls of the pulling block are fixedly connected with round rods, circular grooves are provided on both sides of the pulling block, the round rods are rotatably connected to the inner sides of the circular grooves, the top ends of the round rods are provided with circular holes, the inner sides of the circular holes are slidably connected with positioning rods, the top ends of the positioning rods are set as smooth round surfaces, and positioning springs are fixedly connected between the bottom ends of the circular holes and the bottom ends of the positioning rods, and a positioning groove is provided through the top end of the pulling block relative to the upper position of the positioning rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention arranges an upper cylinder, a lower cylinder, an upper rod, a lower rod, and a clamping mechanism. When the lower cylinder is inserted into a hole in a sheet metal part, the upper rod and the lower rod are stored. Then, during the clamping process, an electric gun is used to rotate the fastening bolt to automatically extend the upper rod and the lower rod, and clamp the sheet metal on the positioning ring. This eliminates the need for workers to screw in nuts, making installation in a small space easier. At the same time, after the upper and lower rods are folded, the area over which the sheet metal is squeezed is larger, which is more conducive to pulling the sheet metal for repair and reducing the possibility of deformation in the pulling area.

[0016] 2. The present invention can choose whether to use the pulling block according to actual repair needs through the arrangement of structures such as the pulling block, the positioning rod and the round rod, and can pull multiple positions of the automobile sheet metal at the same time. The unused pulling blocks can be rotated to avoid affecting the normal use of the device. At the same time, through the arrangement of structures such as the adjusting bolts and the adjusting rods, the clamping positions on both sides can be flexibly adjusted according to the pulling position, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of the quick repair device of the present invention;

[0018] Figure 2 This is a bottom-up perspective diagram of the base and support rods of the present invention;

[0019] Figure 3 This is a schematic top view of the three-dimensional structure of the pulling block and the separating block of the present invention;

[0020] Figure 4 The appended Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the pulling block of the present invention, viewed from above and fully cut away;

[0022] Figure 6 The appended Figure 5 A schematic diagram of the partially enlarged structure at point B in the middle;

[0023] Figure 7 This is a bottom-up schematic diagram of the upper slide and the lower slide of the present invention;

[0024] Figure 8 This is a schematic diagram of the overall appearance of the upper cylinder and the lower cylinder of the present invention;

[0025] Figure 9 This is a schematic diagram of the separate three-dimensional structure of the pulling block, the separating block and the positioning rod of the present invention.

[0026] In the figure: 1. Base; 2. Pneumatic adsorption mechanism; 3. Support rod; 4. Pulling block; 5. Hook; 6. Pulling block; 7. Upper cylinder; 8. Lower cylinder; 9. Positioning ring; 10. Straight groove; 11. Upper slide; 12. Lower slide; 13. Upper rod; 14. Bracket; 15. Lower rod; 16. Limit plate; 17. Fastening bolt; 18. Pull rope; 19. Top plate; 20. Fixed block; 21. Return spring; 22. Conical plate; 23. T-block; 24. Upper spring; 25. L-slot; 26. Guide rod; 27. Guide roller; 28. Adjusting rod; 29. ​​U-block; 30. Adjusting bolt; 31. Socket; 32. Round rod; 33. Positioning rod; 34. Positioning spring; 35. Positioning groove; 36. Pulling mechanism. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In actual use, it is found that bolt and nut connections are usually used in the pulling repair of parts such as car doors, fenders and engine hoods. However, this connection method has some problems in actual application. First, the bolt and nut connection is difficult to install in a small space, and maintenance personnel need to spend a lot of time and energy to complete this operation, which not only reduces maintenance efficiency, but also increases maintenance costs. In order to solve the above problems, the present invention provides the following technical solutions.

[0030] like Figures 1-9 The illustrated automobile sheet metal quick repair device comprises a base 1 and a pulling block 4, and the base 1 is formed by die-casting a disposable chassis aluminum alloy, which is light in weight and easy to move. A pneumatic adsorption mechanism 2 is provided at the bottom of the base 1 for adsorbing a fixed position on the ground. The operating principle of the pneumatic adsorption mechanism 2 is to use an external air pump to connect with a suction cup, and the air pump causes the suction cup to generate negative pressure to form an adsorption force with the ground. This adsorption method enables the device to be stably fixed on the ground, especially when performing a stretching repair operation, to prevent the device from shifting or sliding, thereby ensuring the accuracy and safety of the repair work. A support rod 3 is fixedly connected to the top of the base 1, and a pulling mechanism 36 is provided on the support rod 3 for pulling the pulling block 4 to move. The principle of the pulling mechanism 36 is to use a hand-operated hoist to stretch and repair the collided vehicle. By shaking the handle to control the gear system inside the hoist, the chain and hook are pulled, and at the same time, the pulling block 4 is driven to move, thereby applying tension to the damaged part of the automobile sheet metal. This tension can gradually pull the body parts deformed by the collision back to their original positions, thereby achieving repair of the body.

[0031] There are pulling blocks 6 on both sides of the pulling block 4. The side walls of the pulling block 4 and the pulling block 6 are fixedly connected to the upper cylinder 7. The side walls of the upper cylinder 7 are fixedly connected to the lower cylinder 8. The outer wall of the lower cylinder 8 is provided with a positioning ring 9. A straight groove 10 is opened through the outer wall of the lower cylinder 8. The inner side of the straight groove 10 is respectively slidably connected to the upper slide 11 and the lower slide 12. The upper and lower ends of the inner side of the upper slide 11 are rotatably connected to the upper rod 13. The inner side of the lower slide 12 is fixedly connected to the bracket 14. The lower rod 15 is rotatably connected between the upper rods 13. A side groove is provided on the side wall of the lower rod 15, and the outer wall of the bracket 14 is rotatably connected to the inner side of the side groove. A limit plate 16 is fixedly connected to the inner side of the upper slide 11 for limiting the position of the upper rod 13 and the lower rod 15. The limit plate 16 can limit the position of the upper rod 13 and the lower rod 15 when they are folded and turned upward, so that the sheet metal can be clamped on the positioning ring 9 as the lower slide 12 moves, ensuring the normal clamping and pulling of the device. A clamping mechanism is also provided for first pulling the upper slide 11 and then pulling the lower slide 12;

[0032] The side wall of the pulling block 4 is fixedly connected with a hook ring 5, and the hook of the pulling mechanism 36 is hooked on the hook ring 5. The upper rod 13 is connected to the inner side of the upper slide 11 by a torsion spring, the upper rod 13 is connected to the lower rod 15 by a torsion spring, and the side groove and the bracket 14 are connected by a torsion spring. The setting of the torsion spring makes it easy to drive the upper rod 13 and the lower rod 15 to flip and reset when the pulling is released, and then store them in the straight groove 10;

[0033] The clamping mechanism includes a fastening bolt 17, a pull rope 18 is fixedly connected to the side wall of the upper slide 11, a circular hole is opened on the side wall of the lower slide 12, a top groove is opened on the top of the pulling block 4 and the pulling block 6, the top groove is connected through the inside of the upper cylinder 7, and a top plate 19 is slidably connected to the inside of the top groove. The other end of the pull rope 18 passes through the circular hole and is fixedly connected to the side wall of the top plate 19. The top of the pulling block 4 and the pulling block 6 are both fixedly connected to the fixed block 20. There are three fastening bolts 17, and the three fastening bolts 17 are all threaded and connected to the inner wall of the fixed block 20. The side wall of the fastening bolt 17 is rotatably connected to the side wall of the top plate 19. A return spring 21 is fixedly connected between the side wall of the lower slide 12 and the inner side of the lower cylinder 8. The bottom end of the straight groove 10 is provided with a limiting structure for limiting the sliding of the lower slide 12;

[0034] The limiting structure includes a conical plate 22 with inclined surfaces on both sides, a middle groove is opened at the bottom of the lower slide 12, and slide grooves are opened on both sides of the bottom of the lower slide 12. The side walls of the slide groove are set through the inner side of the middle groove. The inner side of the slide groove is slidably connected with a T-shaped block 23. The inner side of the slide groove and the side wall of the T-shaped block 23 are fixedly connected with an upper spring 24. The side of the T-shaped block 23 is inclined. The conical plate 22 is fixedly connected to the side wall position of the upper slide 11 relative to the middle groove. The groove is set to avoid hindering the movement of the tapered plate 22. The inclined surface of the tapered plate 22 has the same inclination angle as the inclined surface of the T-block 23. A pair of L-shaped grooves 25 are opened at the bottom of the straight groove 10. The bottom ends of the T-blocks 23 are fixedly connected to guide rods 26. The guide rods 26 are inserted into the inner side of the L-shaped grooves 25. The inner side of the top groove is rotatably connected to the guide rollers 27, and the pull ropes 18 pass through the outer walls of the guide rollers 27. The setting of the guide rollers 27 can guide the sliding of the pull ropes 18.

[0035] When performing a pulling repair on a dented part of a car sheet metal, first connect the pneumatic adsorption mechanism 2 to the external air pump, then fix the base 1 to the ground through the pneumatic adsorption mechanism 2, then pick up the pulling block 4, and insert the lower cylinder 8 into the hole of the sheet metal that needs to be repaired (the upper rod 13 and the lower rod 15 are now accommodated in the straight groove 10, so it will not affect the normal insertion of the lower cylinder 8). Then, after the positioning ring 9 is moved to the side of the sheet metal, an electric gun with a matching fastening bolt 17 can be used to drive the fastening bolt 1 7 is rotated. Since the fastening bolt 17 is threadedly connected to the fixing block 20, the other end of the fastening bolt 17 is gradually screwed out by rotating the fastening bolt 17, thereby gradually pushing the top plate 19 to slide in the top groove, and at the same time pulling the pull rope 18. Under the guidance of the guide roller 27, the other end of the pull rope 18 pulls the upper slide 11 to slide in the straight groove 10 (at this time, since the guide rod 26 on the lower slide 12 is inserted into the longitudinal end of the L-shaped groove 25 and is restricted, the lower slide 12 cannot slide);

[0036] By driving the upper rod 13 to move, the upper rod 13 rotates around its hinge and compresses the corresponding torsion spring. At the same time, the other end of the lower rod 15 also rotates around the hinge and compresses the corresponding torsion spring. Then the upper slide 11 moves to the side of the lower slide 12. At this time, under the limit of the limit plate 16, the lower rod 15 folds between the upper rod 13 (it should be noted that since the side end of the bracket 14 is extended beyond the side wall of the lower slide 12, the lower slide 12 will not hinder the complete folding of the upper rod 13 and the lower rod 15);

[0037] When the upper slide 11 is fully moved to the side of the lower slide 12, the conical plate 22 will be inserted into the middle groove, and the inclined surfaces of the two T-blocks 23 will be squeezed, thereby pushing the T-block 23 to gradually slide into the slide groove and compressing the upper spring 24. The sliding of the T-block 23 will drive the guide rod 26 to slide at the longitudinal end of the L-shaped groove 25, so that the guide rod 26 moves to the corner of the L-shaped groove 25, thereby releasing the lateral sliding restriction of the lower slide 12. At this time, the upper slide 11 and the lower slide 12 are completely fitted together, so as the pull rope 18 continues to pull the upper slide 11 to move, it will push the upper slide 11 to move at the same time, thereby driving the folded upper rod 13 and the lower rod 15 to move, and gradually compress the return spring 21, while driving the guide rod 26 to slide at the lateral end of the L-shaped groove 25, and then the folded upper rod 13 and the lower rod 15 move to the inside of the sheet metal, thereby tightly squeezing the sheet metal on the positioning ring 9, so as to achieve the position fixation of the lower cylinder 8;

[0038] Finally, remove the electric gun (it should be noted that when the electric gun is removed, the top plate 19 cannot move because the fastening bolt 17 has a self-locking ability and will not be pushed to reset under the elastic force of the reset spring 21). If the lower cylinder 8 on the pulling block 6 needs to be clamped on the sheet metal at this time, the above operation can be repeated to fix it. Then the pulling mechanism 36 can be used to drive the pulling block 4 to move, thereby driving the upper cylinder 7 and the lower cylinder 8 to move, and then pulling the recessed position of the sheet metal to achieve the repair of the automobile sheet metal. Finally, after use, use the electric gun to drive the fastening bolt 17 to reverse, repeat the above operation in the reverse direction to reset, and then the lower cylinder 8 can be pulled out.

[0039] To sum up, through the design of the above structure, the sheet metal can be automatically clamped on the positioning ring 9, so that there is no need for workers to screw in the nut, and installation can be performed in a small space. At the same time, after the upper rod 13 and the lower rod 15 are folded, the area of ​​the sheet metal squeezed is larger, which is more conducive to pulling the sheet metal for repair and reducing the possibility of deformation in the pulling area.

[0040] On the basis of the above embodiment, it was found during use that since the pulling block 4 and the separating block 6 are connected to form a linear fixed structure, and the automobile sheet metal is not completely horizontal, if the clamping position of the separating block 6 is fixed, the clamping position cannot be adjusted according to actual usage, and the usage requirements cannot be met. In order to solve the above problem, the above structure has been further improved.

[0041] The positioning rings 9 located next to the pulling block 6 are all slidably connected to the outer wall of the corresponding lower cylinder 8, the positioning rings 9 located next to the pulling block 4 are fixedly connected to the outer wall of the corresponding lower cylinder 8, and the side walls of the positioning rings 9 located next to the pulling block 6 are fixedly connected to a pair of adjusting rods 28. The side walls of the upper cylinder 7 are provided with adjusting grooves relative to the positions next to the adjusting rods 28. The adjusting rods 28 are slidably connected to the inner sides of the adjusting grooves. The side walls of the adjusting grooves are provided with through grooves that penetrate the outer wall of the upper cylinder 7. U-shaped blocks 29 are fixedly connected between the side walls of the adjusting rods 28 relative to the positions in the through grooves.

[0042] An adjusting bolt 30 is threadedly connected to the side wall of the U-shaped block 29. A plurality of insertion holes 31 are formed on the outer wall of the upper cylinder 7 at equal distances from the side wall of the adjusting bolt 30. The side end of the adjusting bolt 30 is inserted into the inner side of one of the insertion holes 31.

[0043] When the sheet metal clamping position on the pulling block 6 is different from the position on the pulling block 4, the corresponding adjusting bolt 30 can be rotated to make the adjusting bolt 30 screw out of the socket 31, thereby releasing the position restriction of the U-shaped block 29. Then the U-shaped block 29 can be pushed to drive the adjusting rod 28 and the positioning ring 9 to move, and the clamping position on the lower cylinder 8 can be changed. The adjusting bolt 30 can be rotated in the opposite direction, and the side end of the adjusting bolt 30 can be inserted into the corresponding socket 31 to limit the position of the U-shaped block 29 and the positioning ring 9. After completing the adjustment of the locking position, the sheet metal can be clamped on the side wall of the positioning ring 9 after adjustment in the subsequent clamping process of the sheet metal, and can be flexibly adjusted according to actual conditions.

[0044] In order to further improve the flexibility of the device, the side walls of the pulling block 6 are fixedly connected with round rods 32, and round grooves are opened on both sides of the pulling block 4. The round rods 32 are rotatably connected to the inner sides of the round grooves. The tops of the round rods 32 are opened with round holes, and the inner sides of the round holes are slidably connected with positioning rods 33. The tops of the positioning rods 33 are set as smooth round surfaces, and the bottom ends of the round holes and the bottom ends of the positioning rods 33 are fixedly connected with positioning springs 34. A positioning groove 35 is opened through the top of the pulling block 4 relative to the upper position of the positioning rod 33.

[0045] When the pulling blocks 6 on both sides are not needed, the pulling blocks 6 can be rotated forcefully, which will drive the round rod 32 to rotate in the circular groove. At the same time, the inner wall of the positioning groove 35 will squeeze the arc surface of the side end of the positioning rod 33, thereby squeezing the positioning rod 33 into the circular hole and compressing the positioning spring 34. Then, the pulling block 6 is rotated 180 degrees to rotate the lower cylinder 8 to the other side. At the same time, the positioning rod 33 will rotate into the positioning groove 35 below, thereby releasing the squeezing of the positioning rod 33, and then the positioning rod 33 is pushed into the positioning groove 35 under the elastic force of the positioning spring 34, which plays a certain limiting role on the rotation position of the pulling block 6. It can only rotate when rotated with force, ensuring stability during the pulling process.

[0046] To sum up, through the design of the above structure, it is possible to choose whether to use the pulling block 6 according to actual repair needs, and pull multiple positions of the automobile sheet metal at the same time, and the unused pulling block 6 can be rotated to avoid affecting the normal use of the device. At the same time, the clamping position on both sides can be flexibly adjusted according to the pulling position to improve the flexibility of the device.

[0047] The basic principles, main features and advantages of the present invention are shown and described above.

[0048] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A quick repair device for automobile sheet metal surfaces, comprising a base (1) and a pulling block (4), characterized in that: The bottom of the base (1) is provided with a pneumatic adsorption mechanism (2) for adsorbing a fixed position on the ground, the top of the base (1) is fixedly connected to a support rod (3), the support rod (3) is provided with a pulling mechanism (36) for pulling the pulling block (4) to move, both sides of the pulling block (4) are provided with a separation block (6), the side walls of the pulling block (4) and the separation block (6) are fixedly connected to an upper cylinder (7), the side walls of the upper cylinder (7) are fixedly connected to a lower cylinder (8), the outer wall of the lower cylinder (8) is provided with a positioning ring (9), the outer wall of the lower cylinder (8) is penetrated by a straight groove (10), the straight groove (10) An upper slide (11) and a lower slide (12) are slidably connected to the inner side respectively, and the upper and lower ends of the inner side of the upper slide (11) are rotatably connected to the upper rod (13), and the inner side of the lower slide (12) is fixedly connected to the bracket (14). A lower rod (15) is rotatably connected between the upper rods (13), and a side groove is provided on the side wall of the lower rod (15). The outer wall of the bracket (14) is rotatably connected to the inner side of the side groove. A limit plate (16) for limiting the position of the upper rod (13) and the lower rod (15) is fixedly connected to the inner side of the upper slide (11), and a clamping mechanism for first pulling the upper slide (11) and then pulling the lower slide (12) is also provided. The side wall of the pulling block (4) is fixedly connected with a hook ring (5), the hook of the pulling mechanism (36) is hooked on the hook ring (5), the upper rod (13) and the inner side of the upper slide seat (11) are connected via a torsion spring, the upper rod (13) and the lower rod (15) are connected via a torsion spring, and the side groove and the bracket (14) are connected via a torsion spring; The clamping mechanism includes a fastening bolt (17), a pull rope (18) is fixedly connected to the side wall of the upper slide seat (11), a circular hole is opened on the side wall of the lower slide seat (12), and a top groove is opened on the top of the pulling block (4) and the separating block (6), and the top groove is connected to the inside of the upper cylinder (7). A top plate (19) is slidably connected to the inside of the top groove, and the other end of the pull rope (18) passes through the circular hole and is fixedly connected to the side wall of the top plate (19). The pulling block (4) and the separating block (6) The top end is fixedly connected to a fixed block (20), three fastening bolts (17) are provided, and the three fastening bolts (17) are all threadedly connected to the inner wall of the fixed block (20), and the side wall of the fastening bolt (17) is rotatably connected to the side wall of the top plate (19), and a return spring (21) is fixedly connected between the side wall of the lower slide seat (12) and the inner side of the lower cylinder (8), and a limiting structure for limiting the sliding of the lower slide seat (12) is provided at the bottom end of the straight groove (10); The limiting structure includes a conical plate (22) with inclined surfaces on both sides, a middle groove is provided at the bottom end of the lower slide seat (12), and slide grooves are provided on both sides of the bottom end of the lower slide seat (12), and the side walls of the slide groove are arranged to pass through the inner side of the middle groove, and the inner side of the slide groove is slidably connected to a T-shaped block (23), and an upper spring (24) is fixedly connected between the inner side of the slide groove and the side wall of the T-shaped block (23), and the T-shaped block (23) is tilted on the side close to the side, and the conical plate (22) is fixedly connected to the side wall position of the upper slide seat (11) relative to the middle groove, and the inclined surface of the conical plate (22) and the inclined surface of the T-shaped block (23) have the same inclination angle, and a pair of L-shaped grooves (25) are provided at the bottom end of the straight groove (10), and the bottom end of the T-shaped block (23) is fixedly connected to a guide rod (26), and the guide rod (26) is inserted into the inner side of the L-shaped groove (25).

2. The automobile sheet metal surface quick repair equipment according to claim 1, characterized in that: A guide roller (27) is rotatably connected to the inner side of the top groove, and the pull ropes (18) all pass through the outer wall of the guide roller (27).

3. The automobile sheet metal surface quick repair equipment according to claim 1, characterized in that: The positioning rings (9) located next to the pulling block (6) are all slidably connected to the outer wall of the corresponding lower cylinder (8), the positioning rings (9) located next to the pulling block (4) are fixedly connected to the outer wall of the corresponding lower cylinder (8), and the side walls of the positioning rings (9) located next to the pulling block (6) are fixedly connected to a pair of adjusting rods (28), and the side walls of the upper cylinder (7) are all provided with adjusting grooves relative to the positions next to the adjusting rods (28). The adjusting rods (28) are slidably connected to the inner side of the adjusting grooves, and the side walls of the adjusting grooves are provided with through grooves that penetrate the outer wall of the upper cylinder (7), and the side walls of the adjusting rods (28) are fixedly connected with U-shaped blocks (29) relative to the positions in the through grooves.

4. The automobile sheet metal surface quick repair equipment according to claim 3, characterized in that: An adjusting bolt (30) is threadedly connected to the side wall of the U-shaped block (29), and a plurality of insertion holes (31) are equidistantly formed on the outer wall of the upper cylinder (7) relative to the side wall of the adjusting bolt (30), and the side end of the adjusting bolt (30) is inserted into the inner side of one of the insertion holes (31).

5. The automobile sheet metal surface quick repair equipment according to claim 1, characterized in that: The side walls of the pulling block (6) are fixedly connected with round rods (32), and circular grooves are provided on both sides of the pulling block (4). The round rods (32) are rotatably connected to the inner sides of the circular grooves. The tops of the round rods (32) are provided with circular holes, and the inner sides of the circular holes are slidably connected with positioning rods (33). The tops of the positioning rods (33) are set as smooth round surfaces, and positioning springs (34) are fixedly connected between the bottom ends of the circular holes and the bottom ends of the positioning rods (33). A positioning groove (35) is provided through the top of the pulling block (4) relative to the upper position of the positioning rod (33).

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