Spot welding clamping device for a sled board and its clamping method

Abstract

The present invention discloses a spot welding clamping device for a sled board and its clamping method, belonging to the technical field of sled board welding. The spot welding clamping device for the sled board includes a sled board, and a reinforcing rib clamp for facilitating welding is clamped and fixed at the position of the sled board. The reinforcing rib clamp includes a clamping platform arranged on the surface of the sled board. Sliding adjustment grooves are provided at both ends on both sides of the clamping platform. Fixed support frames are fixedly connected to the upper surface of the clamping platform at the positions of the respective sliding adjustment grooves, and a swing arm structure is arranged at each position of the fixed support frame. By setting the reinforcing rib clamp, the reinforcing rib plate can be clamped and fixed by the reinforcing rib clamp and adjusted to a suitable angle, so that the reinforcing rib plate is inclined and attached to the position of the main body of the sled board for convenient welding. During welding, no manual intervention is required for fixation, resulting in higher welding quality and no need for manual long-term holding and fixation, thus reducing the labor intensity during welding.

Description

Technical Field

[0001] The present invention belongs to the technical field of sled board welding, and particularly relates to a spot welding clamping device for a sled board and a clamping method thereof. Background Art

[0002] The main purpose of a transport sled board is to carry goods or passengers, so its load-bearing capacity is a key feature. To achieve this function, its structure is designed to be relatively strong. In polar regions, the transport sled board is an important transportation tool. Due to the special geographical environment in the polar regions and the difficulty of road construction, sled transportation becomes particularly important. It can be used to transport scientific research equipment, living supplies, etc. For example, in the supply of materials at Antarctic scientific research stations, sled board transportation can transport a large amount of materials from the supply ship on the coast to the inland research station, opening up a transportation route on the snow and ice. The carrying sled board bears a relatively large weight. To prevent the sled board from deforming, reinforcing ribs need to be welded on both sides of the sled board to make the sled board stronger and less likely to deform.

[0003] During the production process of the sled board, when welding, workers need to hold the reinforcing rib with one hand and fix it with a welding torch with the other hand. The reinforcing rib is usually made of steel plate material and is relatively heavy. Workers holding it by hand for a long time causes a relatively large labor intensity in production, muscle fatigue in the hands, and at the same time, welding sparks are likely to hurt the workers during welding. Moreover, during the welding process, manually holding and fixing is unstable, and the reinforcing rib is likely to shift, affecting the welding quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a sled board welding and fixing device for fixing the reinforcing rib.

[0005] The technical solution adopted to solve the above technical problem is: a spot welding clamping device for a sled board, including a sled board, and a reinforcing rib clamp for facilitating welding is clamped and fixed at the position of the sled board.

[0006] Through the above technical solution, the sled board is the product to be welded, and the reinforcing rib clamp can clamp and fix the main body of the sled board, facilitating welding.

[0007] The reinforcing rib clamp includes a clamping platform arranged on the surface of the sled board. Sliding adjustment grooves are opened at both ends on both sides of the clamping platform. Fixed support frames are fixedly connected to the upper surface of the clamping platform at the positions of each sliding adjustment groove, and a swing arm structure is arranged at the position of each fixed support frame.

[0008] Through the above technical solution, the clamping platform can support and install the components of the stiffener clamp. The sliding adjustment groove facilitates the axial rotation adjustment of the clamping swing arm, making the adjustment range of the clamping swing arm wider. The fixed support frame can fixedly install the positioning adjuster.

[0009] A through groove is formed through the middle position of the upper surface of the clamping platform. The clamping platform is provided with a clamping adjustment structure for clamping the sled board at the position of the through groove.

[0010] Through the above technical solution, the through groove can limit and adjust the clamping adjustment structure, and the stiffener clamp can be fixed to the main body position of the sled board through the clamping adjustment structure.

[0011] Furthermore, the swing arm structure includes a positioning shaft fixed to the fixed support frame. A friction outer ring made of rubber material is sleeved on the outer wall of the positioning shaft. A number of uniformly distributed sawteeth are arranged on the surface of the friction outer ring. A positioning adjuster is sleeved outside the positioning shaft, and a clamping swing arm is fixedly connected to the positioning adjuster.

[0012] Through the above technical solution, the positioning shaft supports the positioning adjuster, and the clamping swing arm is fixedly installed through the positioning adjuster. The friction outer ring made of rubber material has a large friction force and will not cause the positioning adjuster to shift or move horizontally. The clamping swing arm can install a stiffener clamp block to clamp and fix the stiffener plate.

[0013] Furthermore, one end of the clamping swing arm away from the positioning adjuster is fixedly connected with a damping rotator through a clamping bolt assembly. One end of the damping rotator away from the clamping swing arm is fixedly connected with a stiffener clamp block. A clamping plate is slidably connected to the inner wall of the stiffener clamp block. A limiting guide post is fixedly connected to the middle position of one side of the clamping plate, and the limiting guide post is slidably connected through the side wall of the stiffener clamp block. A return spring is fixedly connected between the middle position of the side of the clamping plate close to the limiting guide post and the stiffener clamp block. The return spring is a compression spring, and the return spring can make the clamping plate maintain a strong pressing force.

[0014] Through the above technical solution, the damping rotator makes the damping sense of the rotation adjustment strong, facilitating the precise adjustment of the inclination angle of the stiffener clamp block and maintaining the required angle for convenient welding. The clamping plate cooperates with the stiffener clamp block to clamp and fix the stiffener plate under the action of the return spring, and the limiting guide post can linearly slide and limit the clamping plate. The return spring is a compression spring. When the stiffener plate is inserted between the clamping plate and the stiffener clamp block, the return spring can press the stiffener plate through the clamping plate.

[0015] Further, the clamping and adjusting structure includes two symmetrically arranged linkage swing arms slidably connected to the inner wall of the through groove. A fixed connection block is rotatably connected to the top positions of the two linkage swing arms. A moving grip is fixedly connected to the top position of the fixed connection block. Two symmetrically arranged side clamping plates are slidably connected to the lower surface of the clamping platform. One end of each of the two linkage swing arms away from the fixed connection block is rotatably connected to the top of the side clamping plate.

[0016] Through the above technical solution, one end of the linkage swing arm is connected to the side clamping plate and the fixed connection block, and the side clamping plate can be controlled by the moving grip with a fixed position of the fixed connection block, so that the side clamping plate can be expanded.

[0017] Further, a support spring is fixedly connected between one side of each of the two side clamping plates away from the center of the clamping platform and the side wall of the clamping platform. A positioning convex block is fixedly connected to a position near the lower part of the side of each of the two side clamping plates close to each other. An arc-shaped chamfer is arranged on the side surface of the positioning convex block, and a chamfer in an "eight" shape is arranged at the bottom position of the two side clamping plates. The support spring is a compression spring, so that the side clamping plates are pressed towards the middle position.

[0018] Through the above technical solution, when the moving grip is pressed down, the two side clamping plates expand outwards, and then the support spring is compressed. When the moving grip is released, under the action of the support spring, the two side clamping plates rebound, so that the side clamping plates are clamped on both sides of the sled board body. When the positioning convex block is inserted into the fixed installation hole of the sled board body, the reinforcing rib clamp is fixedly installed more stably, and it is convenient for the positioning convex block to be inserted into the fixed installation hole. The chamfer in an "eight" shape is arranged at the bottom position of the two side clamping plates, which is convenient for clamping the two side clamping plates on both sides of the sled board body.

[0019] Further, a control handle is slidably connected through the center position of the upper surface of the positioning regulator. A pressing block is fixedly connected to one end of the control handle located inside the positioning regulator. The pressing block is slidably connected to the inner wall of the positioning regulator.

[0020] Through the above technical solution, the pressing block tightly presses the friction outer ring under the action of the pressing spring, so that the frictional force between the pressing block and the positioning regulator and the friction outer ring increases. When the pressing block is not pulled up, the positioning regulator is fully fixed, and then the reinforcing rib plate is fixed fully and stably.

[0021] Further, the lower surface of the pressing block is arranged in a circular arc shape and is serrated. A pressing spring is fixedly connected between the upper surface of the pressing block and the inner top wall of the positioning regulator. The pressing spring is a compression spring, so that the pressing block has a sufficient pressing effect on the friction outer ring.

[0022] Furthermore, the sled board includes a sled board main body. Through holes for fixed installation are formed in the middle positions on both sides of the sled board main body. Both sides of the sled board main body are clamped and fixed by two symmetric side clamping plates, and the positioning convex blocks are slidably connected to the corresponding fixed installation holes. Reinforcing rib plates are arranged at both ends on both sides of the sled board main body.

[0023] A clamping method for a spot welding clamping device of a sled board includes the following specific steps:

[0024] Step 1. Hold the clamping platform by hand and press down the moving grip, so that the linkage swing arms expand to both sides, and the side clamping plates slide to both sides. Place the two side clamping plates on both sides of the sled board main body, and release the moving grip, so that the two side clamping plates come together under the action of the support springs, and the positioning convex blocks are inserted into the fixed installation holes, realizing the fixation of the reinforcing rib clamp on the sled board main body;

[0025] Step 2. Clamp the reinforcing rib plate to be welded between the corresponding clamping plates and the inner walls of the reinforcing rib clamping blocks, and fix it through the return spring. Rotate the reinforcing rib clamping blocks to make the damping rotator rotate with damping;

[0026] Step 3. Pull the control handle, so that the pressing block is lifted and the pressing spring is compressed. The pressing block is separated from the friction outer ring. Slide and rotate the positioning regulator to adjust the reinforcing rib plate to closely fit the welding position of the sled board main body, and then release the control handle, so that the pressing block presses against the friction outer ring to realize the fixation of the positioning regulator;

[0027] Step 4. Weld the reinforcing rib plate to the sled board main body by welding equipment. After welding, remove the reinforcing rib clamp from the sled board.

[0028] The beneficial effects of the present invention are as follows: (1) By setting the reinforcing rib clamp, the reinforcing rib plate can be clamped and fixed by the reinforcing rib clamp and adjusted to an appropriate angle, so that the reinforcing rib plate is inclined and attached to the sled board main body for convenient welding. During welding, no manual intervention is required for fixation, avoiding the risk of the hand being injured by the spark of the welding torch when manually holding and fixing, and at the same time avoiding muscle fatigue of the hand caused by holding the steel plate for a long time, and also avoiding the deviation of the reinforcing rib plate during the welding process, which affects the welding quality; (2) The present invention adopts a special welding fixing device, and the four reinforcing rib plates can be fixed in advance before welding, effectively improving the welding efficiency of the sled board, and the mechanical clamping stability is high, effectively improving the welding quality. Description of the Drawings

[0029] Figure 1 is the first perspective structure diagram of a spot welding clamping device of a sled board of the present invention;

[0030] Figure 2It is the second perspective structure diagram of the spot welding clamping device for a sled board of the present invention;

[0031] Figure 3 It is the partial exploded view of the sled board main body of the spot welding clamping device for a sled board of the present invention;

[0032] Figure 4 It is the three-dimensional structure diagram of the rib stiffener clamp of the spot welding clamping device for a sled board of the present invention;

[0033] Figure 5 It is the assembly structure diagram of the clamping swing arm of the spot welding clamping device for a sled board of the present invention;

[0034] Figure 6 It is Figure 5 The enlarged view at position A in

[0035] Figure 7 It is the three-dimensional structure diagram of the clamping platform of the spot welding clamping device for a sled board of the present invention;

[0036] Figure 8 It is the cross-sectional view of the clamping platform of the spot welding clamping device for a sled board of the present invention.

[0037] Reference numerals: 1, sled board; 10, rib stiffener plate; 11, sled board main body; 12, fixed mounting hole; 2, rib stiffener clamp; 200, clamping platform; 201, through groove; 202, fixed support frame; 203, positioning shaft; 204, clamping adjustment structure; 2040, positioning convex block; 2041, side clamping plate; 2042, fixed connection block; 2043, moving grip; 2044, linkage swing arm; 2045, support spring; 205, positioning adjuster; 206, compression spring; 207, clamping bolt assembly; 208, damping rotator; 209, sliding adjustment groove; 210, clamping swing arm; 211, limit guide post; 212, rib stiffener clamping block; 213, clamping plate; 214, return spring; 215, control handle; 216, friction outer ring; 217, pressing block. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] As Figure 1-8 shown, a spot welding clamping device for a sled board in this embodiment includes a sled board 1, and a rib stiffener clamp 2 for facilitating welding is clamped and fixed at the position of the sled board 1. The sled board 1 is the product to be welded, and the rib stiffener clamp 2 can clamp and fix the sled board main body 11 to facilitate welding.

[0040] The sled board 1 includes a sled board main body 11. Fixing and mounting holes 12 are formed through the middle positions on both sides of the sled board main body 11. Both sides of the sled board main body 11 are clamped and fixed by two symmetrical side clamping plates 2041, and the positioning convex block 2040 is slidably connected to the fixing and mounting holes 12 at corresponding positions. Reinforcing rib plates 10 are arranged at both ends of both sides of the sled board main body 11.

[0041] The reinforcing rib clamp 2 includes a clamping platform 200 arranged on the surface of the sled board 1. Sliding adjustment grooves 209 are formed at both ends of both sides of the clamping platform 200. Fixed support frames 202 are fixedly connected to the upper surface of the clamping platform 200 at positions corresponding to each sliding adjustment groove 209, and a swing arm structure is arranged at each position of the fixed support frame 202. The clamping platform 200 can support and install the components of the reinforcing rib clamp 2. The sliding adjustment grooves 209 facilitate the axial rotation adjustment of the clamping swing arm 210, making the adjustment range of the clamping swing arm 210 wider. The fixed support frames 202 can fixedly install the positioning adjuster 205.

[0042] The swing arm structure includes a positioning shaft 203 fixed at the position of the fixed support frame 202. A friction outer ring 216 made of rubber material is sleeved on the outer wall of the positioning shaft 203. A number of evenly distributed sawteeth are arranged on the surface of the friction outer ring 216. A positioning adjuster 205 is sleeved outside the positioning shaft 203. A clamping swing arm 210 is fixedly connected to the position of the positioning adjuster 205. The positioning shaft 203 supports the positioning adjuster 205 and fixedly installs the clamping swing arm 210 through the positioning adjuster 205. The friction of the rubber material friction outer ring 216 is large, and the positioning adjuster 205 will not be offset or horizontally moved. The clamping swing arm 210 can install a reinforcing rib clamp block 212 to clamp and fix the reinforcing rib plate 10.

[0043] A control handle 215 is slidably connected through the center position of the upper surface of the positioning adjuster 205. A pressing block 217 is fixedly connected to one end of the control handle 215 located inside the positioning adjuster 205. The pressing block 217 is slidably connected to the inner wall of the positioning adjuster 205. Under the action of a pressing spring 206, the pressing block 217 tightly presses the friction outer ring 216, increasing the friction between the pressing block 217 and the positioning adjuster 205 and the friction outer ring 216. When the pressing block 217 is not pulled up, the positioning adjuster 205 is fully fixed, and then the reinforcing rib plate 10 is fixed fully and stably.

[0044] The lower surface of the pressing block 217 is arranged in an arc shape and is serrated. A pressing spring 206 is fixedly connected between the upper surface of the pressing block 217 and the inner top wall of the positioning adjuster 205. The pressing spring 206 is a compression spring, enabling the pressing block 217 to fully press on the friction outer ring 216.

[0045] One end of the clamping swing arm 210 away from the positioning regulator 205 is fixedly connected with a damping rotator 208 through a clamping bolt assembly 207. One end of the damping rotator 208 away from the clamping swing arm 210 is fixedly connected with a reinforcing rib clamp block 212. A clamping plate 213 is slidably connected to the inner wall of the reinforcing rib clamp block 212. A limiting guide post 211 is fixedly connected to the middle position of one side of the clamping plate 213, and the limiting guide post 211 is slidably connected through the side wall of the reinforcing rib clamp block 212. A return spring 214 is fixedly connected between the middle position of the side of the clamping plate 213 close to the limiting guide post 211 and the reinforcing rib clamp block 212. The return spring 214 is a compression spring. The return spring 214 can make the clamping plate 213 maintain a strong pressing force. The damping rotator 208 makes the damping feeling of the rotation adjustment strong, which is convenient for accurately adjusting the inclination angle of the reinforcing rib clamp block 212 and maintaining the required angle for welding. The clamping plate 213 cooperates with the reinforcing rib clamp block 212 to clamp and fix the reinforcing rib plate 10 under the action of the return spring 214, and the limiting guide post 211 can linearly slide and limit the clamping plate 213. The return spring 214 is a compression spring. When the reinforcing rib plate 10 is inserted between the clamping plate 213 and the reinforcing rib clamp block 212, the return spring 214 can press the reinforcing rib plate 10 through the clamping plate 213.

[0046] A through groove 201 is formed through the middle position of the upper surface of the clamping platform 200. A clamping adjustment structure 204 for clamping the sled board 1 is arranged at the position of the through groove 201 on the clamping platform 200. The through groove 201 can realize the limit adjustment of the clamping adjustment structure 204, and the reinforcing rib clamp 2 can be fixed at the position of the sled board main body 11 through the clamping adjustment structure 204.

[0047] The clamping adjustment structure 204 includes two symmetrically arranged linkage swing arms 2044 slidably connected to the inner wall of the through groove 201. A fixed connection block 2042 is rotatably connected to the top positions of the two linkage swing arms 2044. A moving grip 2043 is fixedly connected to the top position of the fixed connection block 2042. Two symmetrically arranged side clamping plates 2041 are slidably connected to the lower surface position of the clamping platform 200. One end of the two linkage swing arms 2044 away from the fixed connection block 2042 is rotatably connected to the top of the side clamping plates 2041. One end of the linkage swing arm 2044 connects the side clamping plate 2041 and the fixed connection block 2042. The side clamping plate 2041 can be controlled through the moving grip 2043 fixed at the position of the fixed connection block 2042, so as to control the expansion of the side clamping plate 2041.

[0048] On one side of the two side clamping plates 2041 away from the center of the clamping platform 200, a support spring 2045 is fixedly connected between the side wall of the clamping platform 200. On the side of the two side clamping plates 2041 close to each other near the lower position, a positioning convex block 2040 is fixedly connected. An arc-shaped chamfer is provided at the side position of the positioning convex block 2040, and a chamfer in the shape of an "eight" character is provided at the bottom position of the two side clamping plates 2041. The support spring 2045 is a compression spring, which presses the side clamping plates 2041 towards the middle position. When the moving grip 2043 is pressed downwards, the two side clamping plates 2041 expand outwards, and the support spring 2045 is compressed. When the moving grip 2043 is released, under the action of the support spring 2045, the two side clamping plates 2041 rebound, so that the side clamping plates 2041 are clamped on both sides of the sled board main body 11. When the positioning convex block 2040 is inserted into the fixed installation hole 12 of the sled board main body 11, the reinforcing rib clamp 2 is more stably fixedly installed, and it is convenient to insert into the fixed installation hole 12 at the position of the positioning convex block 2040. A chamfer in the shape of an "eight" character is provided at the bottom position of the two side clamping plates 2041, which is convenient to clamp the two side clamping plates 2041 on both sides of the sled board main body 11.

[0049] A clamping method for a spot welding clamping device of a sled board includes the following specific steps:

[0050] Step 1. Hold the clamping platform 200 by hand and press down the moving grip 2043, so that the linkage swing arm 2044 expands outwards, and the side clamping plates 2041 slide outwards. Place the two side clamping plates 2041 on both sides of the sled board main body 11, and release the moving grip 2043, so that the two side clamping plates 2041 come together under the action of the support spring 2045, and the positioning convex block 2040 is inserted into the fixed installation hole 12, realizing the fixation of the reinforcing rib clamp 2 at the position of the sled board main body 11;

[0051] Step 2. Clamp the reinforcing rib plate 10 to be welded between the inner walls of the corresponding clamping plate 213 and the reinforcing rib clamping block 212, and fix it through the return spring 214. Rotate the reinforcing rib clamping block 212, so that the damping rotator 208 rotates with damping;

[0052] Step 3. Pull the control handle 215, so that the pressing block 217 is lifted, and the pressing spring 206 is compressed. The pressing block 217 is separated from the friction outer ring 216. Slide and rotate the positioning adjuster 205 to adjust the reinforcing rib plate 10 to be close to the welding position of the sled board main body 11, and then release the control handle 215, so that the pressing block 217 presses against the friction outer ring 216, realizing the fixation of the positioning adjuster 205;

[0053] Step 4. Weld the reinforcing rib plate 10 to the position of the sled board main body 11 through welding equipment. After welding, remove the reinforcing rib clamp 2 from the sled board 1.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A spot welding clamping device for a sled board, comprising a sled board (1), characterized in that: A reinforcing rib clamp (2) for facilitating welding is clamped and fixed at the position of the sled board (1); The reinforcing rib clamp (2) includes a clamping platform (200) arranged on the surface of the sled board (1). Sliding adjustment grooves (209) are provided at both ends on both sides of the clamping platform (200). Fixed support frames (202) are fixedly connected to the upper surface of the clamping platform (200) at the positions of the respective sliding adjustment grooves (209), and a swing arm structure is arranged at each position of the fixed support frames (202); A through groove (201) is penetrated through the middle position of the upper surface of the clamping platform (200), and a clamping adjustment structure (204) for clamping the sled board (1) is arranged at the position of the clamping platform (200) corresponding to the through groove (201); The clamping adjustment structure (204) includes two symmetrically arranged linkage swing arms (2044) slidably connected to the inner wall of the through groove (201). A fixed connection block (2042) is rotatably connected to the top positions of the two linkage swing arms (2044). A moving grip (2043) is fixedly connected to the top position of the fixed connection block (2042). Two symmetrically arranged side clamping plates (2041) are slidably connected to the lower surface position of the clamping platform (200). One end of each of the two linkage swing arms (2044) away from the fixed connection block (2042) is rotatably connected to the top of the side clamping plate (2041); A support spring (2045) is fixedly connected between one side of each of the two side clamping plates (2041) away from the center of the clamping platform (200) and the side wall of the clamping platform (200). A positioning convex block (2040) is fixedly connected to a position near the lower part of one side of the two side clamping plates (2041) close to each other. An arc-shaped chamfer is arranged on the side surface of the positioning convex block (2040), and a chamfer in the shape of an "eight" character is provided at the bottom position of the two side clamping plates (2041). The support spring (2045) is a compression spring, so that the side clamping plates (2041) are pressed towards the middle position; The swing arm structure includes a positioning shaft (203) fixed at the position of the fixed support frame (202). A friction outer ring (216) made of rubber material is sleeved on the outer wall of the positioning shaft (203). A number of uniformly distributed saw teeth are arranged on the surface of the friction outer ring (216). A positioning regulator (205) is sleeved outside the positioning shaft (203), and a clamping swing arm (210) is fixedly connected to the position of the positioning regulator (205); One end of the clamping swing arm (210) away from the positioning adjuster (205) is fixedly connected with a damping rotator (208) through a clamping bolt assembly (207). One end of the damping rotator (208) away from the clamping swing arm (210) is fixedly connected with a reinforcing rib clamp block (212). A clamping plate (213) is slidably connected to the inner wall of the reinforcing rib clamp block (212). A limiting guide post (211) is fixedly connected to the middle position of one side of the clamping plate (213), and the limiting guide post (211) is slidably connected through the side wall of the reinforcing rib clamp block (212). A return spring (214) is fixedly connected between the middle position of the side of the clamping plate (213) close to the limiting guide post (211) and the reinforcing rib clamp block (212). The return spring (214) is a compression spring, and the return spring (214) can make the clamping plate (213) maintain a strong pressing force; A control handle (215) is slidably connected through the center position of the upper surface of the positioning adjuster (205). One end of the control handle (215) located inside the positioning adjuster (205) is fixedly connected with a pressing block (217), and the pressing block (217) is slidably connected to the inner wall of the positioning adjuster (205).

2. The spot welding clamping device for a sled board according to claim 1, characterized in that, The lower surface of the pressing block (217) is arranged in a circular arc shape and is serrated. A pressing spring (206) is fixedly connected between the upper surface of the pressing block (217) and the inner top wall of the positioning adjuster (205). The pressing spring (206) is a compression spring, so that the pressing block (217) fully presses on the friction outer ring (216).

3. The spot welding clamping device for a sled board according to claim 2, characterized in that: The sled board (1) includes a sled board main body (11). Fixing mounting holes (12) are penetrated and opened at the middle positions on both sides of the sled board main body (11). Both sides of the sled board main body (11) are clamped and fixed by two symmetrical side clamping plates (2041), and the positioning convex block (2040) is slidably connected to the corresponding fixing mounting hole (12). Reinforcing rib plates (10) are arranged at both ends of both sides of the sled board main body (11).

4. A clamping method for a spot welding clamping device of a sled board, characterized in that, Using the spot welding clamping device for the sled board according to claim 3, the following specific steps are included: Step 1. Hold the clamping platform (200) by hand and press down the moving grip (2043), so that the linkage swing arm (2044) expands to both sides, and the side clamping plates (2041) slide to both sides. Place the two side clamping plates (2041) on both sides of the sled board main body (11). Release the moving grip (2043), so that the two side clamping plates (2041) close to each other under the action of the supporting spring (2045), and the positioning convex block (2040) is clamped into the fixing mounting hole (12), realizing the fixing of the reinforcing rib clamp (2) at the position of the sled board main body (11); Step 2. Clamp the reinforcing rib plate (10) to be welded between the corresponding inner walls of the clamping plate (213) and the reinforcing rib clamp block (212), and fix it through the return spring (214). Rotate the reinforcing rib clamp block (212) so that the damping rotator (208) rotates with damping; Step 3. Pull the control handle (215) to lift the pressing block (217) and compress the pressing spring (206), so that the pressing block (217) is separated from the friction outer ring (216). Slide and rotate the positioning regulator (205) to adjust the position where the reinforcing rib plate (10) is closely attached to the welding position of the sled board main body (11). Then release the control handle (215) to press the pressing block (217) against the friction outer ring (216), thus fixing the positioning regulator (205). Step 4. Weld the reinforcing rib plate (10) to the position of the sled board main body (11) by welding equipment. After welding, withdraw the reinforcing rib clamp (2) from the position of the sled board (1).

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