Auxiliary welding device for thin plate welding part and welding method of auxiliary welding device
By designing an auxiliary device for thin plate welding, and utilizing the cooperation of a gear shaft, a rotating component, and an elastic component, the reciprocating sliding of the welding torch and the lifting of the welding end are achieved, solving the problem of thin plate burn-through during welding and improving welding accuracy, efficiency, and strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-03-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When welding thin plates, the thermal stress generated by the welding torch can easily cause the weld joint to burn through, affecting welding accuracy and efficiency.
Design a welding auxiliary device for thin plate welding parts, including a bearing mechanism and an auxiliary mechanism. Through the cooperation of a gear shaft, a rotating component, a limiting component and an elastic component, the welding torch can be reciprocated and the welding end can be raised, thereby reducing heat concentration and preventing deformation of the thin plate.
It reduces local overheating at the weld joint of thin plates, improves welding accuracy and efficiency, enhances welding strength and continuity, and improves the uniformity and smoothness of the weld.
Smart Images
Figure CN121649634A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of welding equipment technology, specifically to a welding auxiliary device for thin plate welding parts and its welding method. Background Technology
[0002] In modern manufacturing, welding technology is widely used for joining various mechanical and structural components. Its applications are particularly extensive for thin-plate welded parts, including automotive manufacturing, aerospace, medical devices, precision instruments, and home appliances, among many other fields. When welding small, thin plates with a welding torch, the worker typically holds the torch and slides it to weld the plate. Because the thin plate is thin and has poor rigidity, and the welding torch generates a lot of heat at the weld joint, the thermal stress generated by the torch acts on the weld joint when the torch is in contact with the weld and begins to move. This can easily cause the weld joint to burn through, affecting the welding accuracy and efficiency of welding thin plates. Summary of the Invention
[0003] The purpose of this invention is to provide a welding auxiliary device and welding method for thin plate welded parts, so as to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a welding auxiliary device for thin plate welded parts, comprising two main bodies and a fixed platform. Two positioning rods are fixedly connected to the top of the main bodies. The device also includes: The support mechanism is installed on the side wall of the main body and is used to support the welding torch when the welding torch is welding the plate. The auxiliary mechanism is installed on the side wall of the supporting mechanism to prevent the plate from deforming during welding.
[0005] Furthermore, the main body includes: Limiting components are installed on the top of the main body; A rotating assembly is mounted on top of the limit assembly.
[0006] Furthermore, the load-bearing mechanism includes a gear shaft disposed on the top of the main body, and the load-bearing mechanism also includes: A placement component is positioned between two gear shafts; The push component is installed on the side wall where the component is placed.
[0007] Furthermore, the auxiliary mechanism includes a central plate disposed at the bottom of the component placement area, and the auxiliary mechanism also includes: The fixing component is installed at the bottom of the center plate; The elastic component is installed on the side wall of the fixed component.
[0008] Furthermore, the limiting component includes a horizontal plate fixedly connected to the outer surface of the two positioning rods, and the side wall of the horizontal plate is provided with a number of inclined grooves, which are arranged at equal intervals. The rotating assembly includes a drive frame fixedly connected to the top of two positioning rods. Several rotating shafts are rotatably connected inside the drive frame, and arc-shaped toothed plates are fixedly connected to the outer surface of the rotating shafts. Gears are fixedly connected to the side wall of the rotating shaft.
[0009] Furthermore, the gear shaft is slidably connected inside the drive frame; The placement assembly includes a placement frame rotatably connected between two gear shafts, and two elastic plates are fixedly connected to the inner wall of the placement frame on the side closest to the gear shafts. The side wall of the placement frame is fixedly connected to two auxiliary springs.
[0010] Furthermore, the pushing assembly includes a push plate fixedly connected to the end of the two auxiliary springs away from the placement frame, and a toothed plate fixedly connected to the side of the push plate near the drive frame; The toothed plate is slidably connected inside the drive frame.
[0011] Furthermore, the center plate is fixedly connected to the bottom outer wall of the placement frame; The fixing component includes a ring fixedly connected to the end of the center plate away from the placement frame, a long rod fixedly connected to the side of the ring near the drive frame, and a long plate rotatably connected to the end of the long rod away from the ring. The long plate is slidably connected to the top of the horizontal plate, and two curved rods are fixedly connected to the bottom outer wall of the ring.
[0012] Furthermore, the elastic component includes a C-shaped rod fixedly connected to the side wall of the ring, a vertical plate slidably connected to the central axis of the C-shaped rod, a spring plate slidably connected inside the vertical plate, and the elastic end of the spring plate fixedly connected to the top inner wall of the vertical plate. An elastic plate two is fixedly connected to the side of the vertical plate closest to the main body. An inclined rod is rotatably connected to the side wall of the elastic plate two. A T-shaped rod is rotatably connected to the end of the inclined rod away from the elastic plate two. The T-shaped rod is rotatably connected to the side wall of the curved rod.
[0013] Furthermore, a method for using a welding auxiliary device for thin plate weldments, the method comprising the following steps: S1: Plate placement: First, place the fixing platform on the workbench and have the worker place the two thin plates to be welded on the top of the fixing platform. Then, place the main body on top of the thin plates. After that, the position of the main body can be limited and fixed by external clamping equipment. S2: Installation and Adjustment: Then the staff places the welding gun into the placement frame and places the welding end of the welding gun into the ring. At this time, the multiple elastic plates inside the placement frame will clamp the welding gun and the welding end of the welding gun will form a certain angle with the thin plate. S3: Sliding Welding: When welding thin plates begins, the operator pushes the push plate to slide. As the push plate slides, it drives the placement frame and the ring to slide synchronously through two auxiliary springs, as well as the welding gun inside the placement frame. The welding gun then welds the joint between the two thin plates.
[0014] The present invention has the following beneficial effects: 1. In this invention, when the sliding of the placement frame causes the toothed plate to separate from the gear, the placement frame will drive the welding torch to slide and reset under the action of the reset potential energy of the two auxiliary springs. Then, when the worker continues to push the push plate to drive the welding torch to the position of the other rotating shaft surface, the welding torch will slide back and forth during the welding of the thin plate, so that the heat during welding will not be continuously concentrated on one point. By sliding the welding torch back and forth, the excessive accumulation of local heat during welding can be reduced, thereby reducing the occurrence of local overheating and burn-through of the plate when welding thin plates, and improving the welding accuracy and welding efficiency when welding thin plates.
[0015] 2. In this invention, when the long plate is tilted up by the obstruction of the inclined groove, the long plate will drive the ring and the welding end of the welding gun to tilt up synchronously through the long rod. At this time, the welding gun can slide in the opposite direction of the sliding, and its welding end will reduce the distance between it and the thin plate. By sliding the welding gun in the opposite direction of the welding sliding and tilting the welding end of the welding gun, the situation of local overheating caused by the welding end of the welding gun sliding to the surface of the weld after the reverse sliding can be reduced. In this way, the overheating and burn-through of the weld surface of the thin plate can be further reduced, while the welding strength of the thin plate is further improved.
[0016] 3. In this invention, when the two elastic plates slide relative to each other on the sidewall of the thin plate, the sliding of the elastic plates on the surface of the thin plate can apply an outward sliding pressure to the thin plate. This can reduce the twisting and deformation of the weld seam of the thin plate caused by the back-and-forth sliding of the welding end of the welding gun and the heat changes at the weld seam during subsequent sliding welding. This improves the forming quality of the weld seam of the thin plate, while also improving the uniformity of the weld and the flatness of the thin plate surface.
[0017] 4. In this invention, the compression of the plate surface by the second elastic plate can reduce the vibration of the welding torch due to excessively fast reset speed when the welding torch is reset under the push of the auxiliary spring. At the same time, when the ring is reset by pushing the side wall of the second elastic plate through the tilting rod, the two second elastic plates move away from each other, which can limit the stability of the ring on the sliding welding path between the two main bodies. By reducing the vibration of the welding torch and improving the stability on the welding path, it is possible to reduce the situation of inconsistent weld width or offset welding position on the thin plate when welding thin plates, improve the continuity of thin plate welding, and further improve the accuracy of thin plate welding.
[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the main body of the invention; Figure 4 This is a schematic diagram of the limiting component of the present invention; Figure 5 This is a schematic diagram of the component placement in this invention; Figure 6 This is a schematic diagram of the fixing component of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 9 This is a schematic diagram of the method flow of the present invention.
[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 101. Positioning rod; 11. Limiting component; 111. Horizontal plate; 112. Inclined groove; 12. Rotating component; 121. Drive frame; 122. Rotating shaft; 123. Gear; 2. Bearing mechanism; 201. Gear shaft; 21. Placement component; 211. Placement frame; 212. Elastic plate one; 213. Auxiliary spring; 22. Pushing component; 221. Pushing plate; 222. Gear plate; 3. Auxiliary mechanism; 301. Center plate; 31. Fixing component; 311. Ring; 312. Long plate; 313. Bending rod; 32. Elastic component; 321. Vertical plate; 322. Elastic plate two; 323. Inclined rod; 4. Fixed platform. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1 - Figure 9 As shown, the present invention is a welding auxiliary device for thin plate welding parts, including two main bodies 1 and a fixed platform 4. Two positioning rods 101 are fixedly connected to the top of the main body 1, and the device also includes: The support mechanism 2 is installed on the side wall of the main body 1 and is used to support the welding gun when the welding gun is welding the plate. Auxiliary mechanism 3 is installed on the side wall of the bearing mechanism 2 to prevent the plate from deforming during welding.
[0024] Entity 1 includes: Limiting component 11 is installed on the top of the main body 1; Rotating component 12 is mounted on top of limiting component 11.
[0025] The bearing mechanism 2 includes a gear shaft 201 disposed on the top of the main body 1, and the bearing mechanism 2 also includes: Placement component 21 is disposed between two gear shafts 201; Push component 22 is installed on the side wall where component 21 is placed.
[0026] The auxiliary mechanism 3 includes a central plate 301 disposed at the bottom of the placement component 21, and the auxiliary mechanism 3 also includes: Fixing component 31 is installed at the bottom of center plate 301; The elastic component 32 is installed on the side wall of the fixed component 31.
[0027] The limiting component 11 includes a horizontal plate 111 fixedly connected to the outer surface of two positioning rods 101. The side wall of the horizontal plate 111 is provided with a plurality of inclined grooves 112, which are arranged at equal intervals. The rotating assembly 12 includes a drive frame 121 fixedly connected to the top of the two positioning rods 101. Several rotating shafts 122 are rotatably connected inside the drive frame 121, and an arc-shaped toothed plate is fixedly connected to the outer surface of the rotating shafts 122. A gear 123 is fixedly connected to the side wall of the rotating shaft 122.
[0028] The gear shaft 201 is slidably connected inside the drive frame 121; The placement assembly 21 includes a placement frame 211 rotatably connected between two gear shafts 201, and two elastic plates 212 are fixedly connected to the inner wall of the placement frame 211 on the side near the gear shafts 201. Two auxiliary springs 213 are fixedly connected to the side wall of the placement frame 211. When welding of the thin plate begins, the worker pushes the push plate 221 to slide. When the push plate 221 slides, the sliding of the push plate 221 will drive the placement frame 211, the ring 311 and the welding gun in the placement frame 211 to slide synchronously through the two auxiliary springs 213.
[0029] The pushing assembly 22 includes a pushing plate 221 fixedly connected to one end of the two auxiliary springs 213 away from the placement frame 211, and a toothed plate 222 fixedly connected to the side of the pushing plate 221 near the drive frame 121. The toothed plate 222 is slidably connected inside the drive frame 121. When the push plate 221 pushes the placement frame 211 to slide, the sliding of the push plate 221 will cause the toothed plate 222 to mesh synchronously with the outer surface of the gear 123.
[0030] The center plate 301 is fixedly connected to the bottom outer wall of the placement frame 211; The fixing component 31 includes a ring 311 fixedly connected to the end of the center plate 301 away from the placement frame 211. A long rod is fixedly connected to the side of the ring 311 near the drive frame 121. A long plate 312 is rotatably connected to the end of the long rod away from the ring 311. The long plate 312 is slidably connected to the top of the horizontal plate 111. Two curved rods 313 are fixedly connected to the bottom outer wall of the ring 311. The ring 311 will drive the long plate 312 to slide through the long rods. When the long plate 312 slides, it will be blocked by the inclined groove 112, causing the long plate 312 to tilt upwards when sliding.
[0031] The elastic component 32 includes a C-shaped rod fixedly connected to the side wall of the ring 311, a vertical plate 321 slidably connected to the central axis of the C-shaped rod, a spring plate slidably connected inside the vertical plate 321, and the elastic end of the spring plate being fixedly connected to the top inner wall of the vertical plate 321. An elastic plate 322 is fixedly connected to the side of the vertical plate 321 near the main body 1. An inclined rod 323 is rotatably connected to the side wall of the elastic plate 322. A T-shaped rod is rotatably connected to the end of the inclined rod 323 away from the elastic plate 322. The T-shaped rod is rotatably connected to the side wall of the bent rod 313. The reset of the ring 311 will push the side wall of the elastic plate 322 through the inclined rod 323, so that the elastic plate 322 slides away from the weld on the top of the thin plate.
[0032] A method for using a welding auxiliary device for thin plate weldments, the method comprising the following steps: S1: Plate placement: First, place the fixing platform 4 on the workbench and have the worker place the two thin plates to be welded on the top of the fixing platform 4. Then, place the main body 1 on the top of the thin plates. After that, the position of the main body 1 can be limited and fixed by the external buckle device. S2: Installation and adjustment: Then the staff will place the welding gun into the placement frame 211 and place the welding end of the welding gun into the ring 311. At this time, the multiple elastic plates 212 inside the placement frame 211 will clamp the welding gun and a certain angle will be formed between the welding end of the welding gun and the thin plate. S3: Sliding Welding: When welding of the thin plates begins, the operator pushes the push plate 221 to slide. When the push plate 221 slides, the sliding of the push plate 221 will drive the placement frame 211 and the ring 311 to slide synchronously through the two auxiliary springs 213, and the welding gun in the placement frame 211 will also slide. When the welding gun slides, it will weld the joint between the two thin plates.
[0033] In use, first, the fixing platform 4 is placed on the workbench, and the operator places the two thin plates to be welded on the top of the fixing platform 4. Then, the main body 1 is placed on top of the thin plates. After that, the position of the main body 1 can be limited and fixed by the external buckle device. Then, the operator places the welding gun into the placement frame 211 and places the welding end of the welding gun into the ring 311. At this time, the multiple elastic plates 212 inside the placement frame 211 will clamp the welding gun, and the welding end of the welding gun will form a certain angle with the thin plate. When the welding of the thin plate begins, the operator pushes the push plate 221 to slide. When the push plate 221 slides, the sliding of the push plate 221 will drive the placement frame 211, the ring 311, and the welding gun in the placement frame 211 to slide synchronously through the two auxiliary springs 213. When the welding gun slides, it will weld the welding joint of the two thin plates.
[0034] When the push plate 221 drives the placement frame 211 to slide synchronously, the sliding of the placement frame 211 will drive the gear shaft 201 to slide synchronously within the drive frame 121. When the gear shaft 201 slides to the surface of the rotating shaft 122, the outer surface of the gear shaft 201 will mesh with the arc-shaped toothed plate on the outer surface of the rotating shaft 122. At the same time, when the push plate 221 pushes the placement frame 211 to slide, the sliding of the push plate 221 will cause the gear plate 222 to mesh synchronously with the outer surface of the gear 123. When the gear 123 meshes with the gear plate 222 and the gear shaft 201 meshes with the arc-shaped toothed plate, the placement frame 211 will stop sliding due to the meshing of the gear shaft 201 with the arc-shaped toothed plate. Afterwards, when the operator continues to push the push plate 221 to slide, the push plate 221 will drive the gear plate 222 to slide. When the gear plate 222 slides, it will drive the rotating shaft 122 to rotate through the gear 123. When the rotating shaft 122 rotates, it will... The engagement of the arc-shaped toothed plate with the toothed shaft 201 causes the placement frame 211 to slide towards the push plate 221. At this time, the placement frame 211 will drive the gun body and the ring 311 to slide synchronously, and cause the welding gun to move back a little distance during welding. Then, when the sliding of the placement frame 211 causes the toothed plate 222 to separate from the gear 123, the placement frame 211 will drive the welding gun to slide and reset under the action of the reset potential energy of the two auxiliary springs 213. Then, when the worker continues to push the push plate 221 to drive the welding gun to slide to the position of the other rotating shaft 122, the welding gun will slide back and forth during the welding of the thin plate, so that the heat during welding will not be continuously concentrated on one point. By sliding the welding gun back and forth, the excessive accumulation of local heat during welding can be reduced, thereby reducing the occurrence of local overheating and burn-through of the plate when welding thin plates, and improving the welding accuracy and welding efficiency when welding thin plates.
[0035] When the gear shaft 201 slides towards the push plate 221 under the rotation of the rotating shaft 122, the gear shaft 201 will drive the ring 311 to slide synchronously through the placement frame 211. When the ring 311 slides towards the push plate 221, the ring 311 will drive the long plate 312 to slide through the long rod. When the long plate 312 slides, it will be blocked by the inclined groove 112, causing the long plate 312 to tilt upwards. When the long plate 312 tilts upwards due to the obstruction of the inclined groove 112, the long plate 312 will... The excessively long rod causes the ring 311 and the welding end of the welding torch to tilt up synchronously. At this time, the welding torch can slide in the opposite direction of the sliding motion, and the distance between its welding end and the thin plate will be reduced. By sliding the welding torch in the opposite direction of the welding motion and tilting the welding end of the welding torch, the situation of local overheating caused by the welding end of the welding torch sliding to the surface of the weld after the reverse sliding can be reduced. This can further reduce the overheating and burn-through of the weld surface of the thin plate and further improve the welding strength when welding the thin plate.
[0036] When the long plate 312 is blocked by the rotating shaft 122, causing the welding end of the welding torch to tilt upwards, the welding end of the welding torch will drive the ring 311 to tilt upwards simultaneously. When the ring 311 tilts upwards, it will generate a pulling force on the tilting rod 323 through the bending rod 313. At this time, the two elastic plates 322 will move closer to each other due to their own elasticity while the tilting rod 323 is being pulled. Subsequently, when the welding end of the welding torch returns to its original position, the return of the ring 311 will push the side wall of the elastic plate 322 through the tilting rod 323, causing the elastic plate 322 to move closer to the thin plate. The top of the plate slides away from the weld. When the two elastic plates 322 slide relative to each other on the side wall of the thin plate, the sliding of the elastic plates 322 on the surface of the thin plate can apply an outward sliding pressure to the thin plate. This can reduce the twisting and deformation of the weld at the plate due to the back-and-forth welding of the welding end of the welding gun and the heat change at the weld during subsequent sliding welding. This improves the forming quality of the weld at the thin plate, while also improving the uniformity of the weld and the flatness of the thin plate surface.
[0037] When the placement frame 211 slides and resets under the elastic release of the auxiliary spring 213, the welding end of the welding torch will exert a downward squeezing force on the vertical plate 321 through the ring 311 and the C-shaped rod on the bending rod 313 during reset. When the vertical plate 321 is subjected to downward squeezing, it will squeeze the surface of the plate through the elastic plate 322. The squeezing of the plate surface by the elastic plate 322 can reduce the welding torch from slipping due to the reset speed when it is pushed by the auxiliary spring 213. In cases of excessive speed and vibration, when the ring 311 is reset and pushes the side wall of the elastic plate 322 via the tilting rod 323, the two elastic plates 322 move away from each other and can limit the stability of the ring 311 on the sliding welding path between the two main bodies 1. By reducing the vibration of the welding torch and improving the stability on the welding path, it is possible to reduce the situation of inconsistent weld width or offset welding position on the thin plate during welding, improve the continuity of thin plate welding, and further improve the accuracy of thin plate welding.
[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A welding auxiliary device for thin plate weldments, comprising two main bodies (1) and a fixed platform (4), wherein two positioning rods (101) are fixedly connected to the top of the main bodies (1), characterized in that, Also includes: The support mechanism (2) is installed on the side wall of the main body (1) and is used to support the welding gun when the welding gun is welding the plate. The auxiliary mechanism (3) is installed on the side wall of the bearing mechanism (2) to prevent the plate from deforming during welding.
2. The welding auxiliary device for thin plate weldments according to claim 1, characterized in that: The main body (1) includes: A limiting component (11) is installed on the top of the main body (1); Rotating assembly (12) is mounted on top of limiting assembly (11).
3. The welding auxiliary device for thin plate weldments according to claim 2, characterized in that: The bearing mechanism (2) includes a gear shaft (201) disposed on the top of the main body (1), and the bearing mechanism (2) further includes: A placement component (21) is disposed between the two gear shafts (201); A pushing component (22) is mounted on the side wall of the placement component (21).
4. The welding auxiliary device for thin plate weldments according to claim 3, characterized in that: The auxiliary mechanism (3) includes a central plate (301) disposed at the bottom of the placement component (21), and the auxiliary mechanism (3) further includes: A fixing component (31) is installed at the bottom of the center plate (301); An elastic component (32) is mounted on the side wall of the fixed component (31).
5. The welding auxiliary device for thin plate welded parts according to claim 1, characterized in that: The limiting component (11) includes a horizontal plate (111) fixedly connected to the outer surface of the two positioning rods (101). The side wall of the horizontal plate (111) is provided with a plurality of inclined grooves (112), and the plurality of inclined grooves (112) are arranged at equal distances. The rotating assembly (12) includes a drive frame (121) fixedly connected to the top of the two positioning rods (101). The drive frame (121) has a plurality of rotating shafts (122) rotatably connected inside, and the outer surface of the rotating shafts (122) is fixedly connected with arc-shaped toothed plates. A gear (123) is fixedly connected to the side wall of the rotating shaft (122).
6. The welding auxiliary device for thin plate weldments according to claim 3, characterized in that: The gear shaft (201) is slidably connected inside the drive frame (121); The placement assembly (21) includes a placement frame (211) rotatably connected between the two gear shafts (201), and two elastic plates (212) are fixedly connected to the inner wall of the placement frame (211) on the side near the gear shafts (201). The side wall of the placement frame (211) is fixedly connected to two auxiliary springs (213).
7. The welding auxiliary device for thin plate weldments according to claim 6, characterized in that: The pushing assembly (22) includes a pushing plate (221) fixedly connected to one end of the two auxiliary springs (213) away from the placement frame (211), and a toothed plate (222) is fixedly connected to the side of the pushing plate (221) near the drive frame (121). The toothed plate (222) is slidably connected inside the drive frame (121).
8. The welding auxiliary device for thin plate weldments according to claim 4, characterized in that: The center plate (301) is fixedly connected to the bottom outer wall of the placement frame (211); The fixing component (31) includes a ring (311) fixedly connected to the end of the center plate (301) away from the placement frame (211), and a long rod is fixedly connected to the side of the ring (311) near the drive frame (121), and a long plate (312) is rotatably connected to the end of the long rod away from the ring (311). The long plate (312) is slidably connected to the top of the horizontal plate (111), and two curved rods (313) are fixedly connected to the bottom outer wall of the ring (311).
9. The welding auxiliary device for thin plate weldments according to claim 8, characterized in that: The elastic component (32) includes a C-shaped rod fixedly connected to the side wall of the ring (311), a vertical plate (321) slidably connected to the central axis of the C-shaped rod, a spring plate slidably connected inside the vertical plate (321), and the elastic end of the spring plate being fixedly connected to the top inner wall of the vertical plate (321). The vertical plate (321) is fixedly connected to the side of the main body (1) with an elastic plate (322). The side wall of the elastic plate (322) is rotatably connected to an inclined rod (323). The end of the inclined rod (323) away from the elastic plate (322) is rotatably connected to a T-shaped rod. The T-shaped rod is rotatably connected to the side wall of the curved rod (313).
10. A method of using a welding auxiliary device for thin plate weldments, characterized in that: The method using the welding auxiliary device for thin plate weldments as described in claim 9 includes the following steps: S1: Plate placement: First, place the fixing table (4) on the workbench and have the workers place the two thin plates to be welded on the top of the fixing table (4). Then place the main body (1) on the top of the thin plates. After that, the position of the main body (1) can be limited and fixed by the external buckle device. S2: Installation and adjustment: Then the staff will place the welding gun into the placement frame (211) and place the welding end of the welding gun into the ring (311). At this time, the multiple elastic plates (212) inside the placement frame (211) will clamp the welding gun and a certain angle will be formed between the welding end of the welding gun and the thin plate. S3: Sliding welding: When welding the thin plates begins, the worker pushes the push plate (221) to slide. When the push plate (221) slides, the sliding of the push plate (221) will drive the placement frame (211) and the ring (311) to slide synchronously through two auxiliary springs (213), and the welding gun in the placement frame (211) will slide. When the welding gun slides, it will weld the joint between the two thin plates.