A welding device for sheet metal processing

Abstract

The present invention relates to the technical field of sheet metal processing, and discloses a welding device for sheet metal processing, which includes a base. A rectangular strip is fixedly connected to the inner wall of the base, and a workbench is slidably connected to the rectangular strip. A U-shaped bracket is fixedly connected to the top of the base. The motor adjusts the height of the L-shaped bracket through a threaded rod. Under the action of the elastic force of the compression spring, the T-shaped slider moves to the left to prevent the belt from being too long. The L-shaped bracket drives the welding machine to move through an O-shaped plate. The electric telescopic rod is started, and the electric telescopic rod pushes the O-shaped plate to move to the right to drive the large rack. The large rack drives the first rotating shaft to rotate clockwise through a large gear, making the left side of the belt shorter and the right side longer. The belt drives the rectangular sliding strip and the workbench to move to the left through the arc-shaped fixing block, causing the workbench and the welding machine to move in opposite directions, so that the workbench moves to the right, reducing the moving distance of the sheet metal, shortening the welding time, preventing the position of the sheet metal from shifting during the moving process, and improving the welding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing equipment, and particularly to a welding device for sheet metal processing. Background Art

[0002] In the manufacturing industry, sheet metal processing is extremely important, and its welding quality directly affects the product quality. However, traditional manual welding depends on manual experience, with uneven quality and low efficiency; although semi-automatic welding devices have been improved, there are still deficiencies in terms of precision and automation, which easily lead to thermal deformation of sheet metal and welding defects, increasing the defective rate. With the development of intelligent manufacturing and the promotion of industrial strategies, it is necessary to develop a sheet metal welding device with high precision, automation, and strong adaptability.

[0003] Among them, when the welding device for sheet metal processing is in use, it may be that when the welding machine moves, the movement time of the sheet metal is long and the distance is large, causing the position to shift, resulting in welding deviation and affecting the welding quality. In view of the above problems, the following solutions are proposed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a welding device for sheet metal processing, which includes a base. A rectangular strip is fixedly connected to the inner wall of the base, and a workbench is slidably connected to the rectangular strip. A U-shaped bracket is fixedly connected to the top of the base, and a motor is fixedly connected to the top of the U-shaped bracket. A threaded rod is rotatably connected to the U-shaped bracket, and the output shaft of the motor is fixedly connected to the threaded rod through a coupling. The motor drives the height of the L-shaped bracket through the threaded rod;

[0005] A moving mechanism, the moving mechanism includes an arc-shaped fixed block, a rectangular slide bar for fixing the arc-shaped fixed block, and a clamping assembly for fixing the sheet metal;

[0006] The outer wall of the rectangular slide bar is slidably connected to the inner wall of the base, the rectangular slide bar is fixedly connected to the workbench, and the top outer wall of the rectangular slide bar is fixedly connected to the bottom of the arc-shaped fixed block.

[0007] Preferably, the moving mechanism further includes a rectangular chute opened on the L-shaped bracket. A T-shaped slider is slidably connected to the inner wall of the rectangular chute. A compression spring is fixedly connected between the right outer wall of the T-shaped slider and the right inner wall of the rectangular chute. Rotating shafts I are rotatably connected to the outer walls of both the T-shaped slider and the L-shaped bracket, and two rotating shafts I are rotatably connected to the outer wall of the arc-shaped fixed block;

[0008] An L-shaped bracket is slidably connected to the U-shaped bracket. The L-shaped bracket is threadedly connected to the threaded rod. An O-shaped plate is slidably connected to the outer wall of the L-shaped bracket. A fixed block is slidably connected to the O-shaped plate, and a welding machine is fixedly connected to the bottom of the fixed block.

[0009] Preferably, the moving mechanism further includes pulleys fixedly connected to the outer walls of several first rotating shafts. A belt is sleeved on the several pulleys. The two sides of the belt are fixedly connected to the left side and the right side of the base respectively. A large gear is fixedly connected to the outer wall of the first rotating shaft above the right side. A large rack is fixedly connected to the bottom of the O-shaped plate. An electric telescopic rod is fixedly connected to the L-shaped bracket. The right side of the electric telescopic rod is fixedly connected to the O-shaped plate. When the L-shaped bracket moves downward, under the action of the elastic force of the compression spring, the T-shaped slider moves to the left to prevent the belt from being too long. The L-shaped bracket drives the welding machine to move through the O-shaped plate, so that the welding machine contacts the sheet metal for welding. Then, the electric telescopic rod is started. The electric telescopic rod pushes the O-shaped plate to move to the right to drive the large rack. The large rack drives the first rotating shaft to rotate clockwise through the large gear, so as to pull the belt to move to the right through the pulley, making the left side of the belt shorter and the right side longer. Thus, the belt drives the rectangular slide bar and the workbench to move to the left through the arc-shaped fixing block, making the workbench and the welding machine move in opposite directions; when the electric telescopic rod pulls the O-shaped plate to drive the large rack to move to the left, the large rack drives the first rotating shaft to rotate counterclockwise through the large gear, so that the workbench moves to the right. Through the above operation mode, the moving distance of the sheet metal is reduced, the welding time is shortened, the position deviation of the sheet metal during the moving process is prevented, and the welding efficiency is improved.

[0010] Preferably, the clamping assembly includes two H-shaped brackets rotatably connected to the outer wall of the fixed block. Two rollers are rotatably connected to the two H-shaped brackets respectively. Arc-shaped springs are fixedly connected to the outer walls of the two H-shaped brackets. The tops of the two arc-shaped springs are fixedly connected to the arc-shaped fixing block.

[0011] Preferably, the clamping assembly further includes an L-shaped block rotatably connected to the rectangular groove of the workbench. Two rollers are rotatably connected to the front side and the rear side of the L-shaped block respectively. An arc-shaped spring is fixedly connected to the outer wall of the L-shaped block. The bottom of the arc-shaped spring is fixedly connected to the workbench.

[0012] Preferably, the clamping assembly further includes several trapezoidal chutes opened on the workbench. Sliding plates are slidably connected to the inner walls of the several trapezoidal chutes. Spring telescopic rods are fixedly connected to the outer walls of the several sliding plates. Clamping plates are fixedly connected to the outer walls of the several spring telescopic rods.

[0013] Preferably, the clamping assembly further includes a first spring fixedly connected to the outer wall of the sliding plate. The first spring is fixedly connected to the workbench. A second rotating shaft is rotatably connected to the rectangular groove of the workbench. The left side of the second rotating shaft rotatably penetrates through the workbench and extends into the trapezoidal chute. A wire wheel is fixedly connected to the outer wall of the second rotating shaft. Cords are fixedly connected to one side of the two sliding plates close to each other. The sides of the two cords away from the sliding plates are fixedly connected to the wire wheel.

[0014] Preferably, the clamping assembly further includes a small gear fixedly connected to the outer wall on the right side of the second rotating shaft. A first chute is provided at the rectangular groove of the workbench. A small rack is slidably connected to the inner wall of the first chute. A second spring is fixedly connected between the bottom outer wall of the small rack and the bottom inner wall of the first chute. The arc-shaped fixing block is fixedly connected with a cleaning assembly. When the sheet metal is placed on the workbench, the gravity of the sheet metal drives the L-shaped block to rotate, causing the arc-shaped spring two to generate elastic force, thereby driving the second roller to move and pressing the sheet metal. When the L-shaped block rotates, it presses the small rack downward, causing the second spring to be compressed to generate elastic force, so that the small rack moves downward in the first chute and drives the second rotating shaft to rotate through the small gear, thereby driving the wire wheel to rotate and retracting the rope. Thus, the ropes are pulled to make the slides approach each other, thereby fixing the sheet metal. When the slides move, the first spring is compressed to generate elastic force. When the clamping plate fixes the sheet metal, under the action of the spring telescopic rod, it is prevented that the sheet metal is damaged during clamping. When the fixing block moves downward and drives the first roller to move through the H-shaped bracket, when the first roller presses the sheet metal, the first roller rotates around the fixing block as a fulcrum through the H-shaped bracket, thereby flattening the interfaces of the two sheet metals. When the sheet metal is taken out after welding, under the action of the elastic forces of the first spring, the second spring and the arc-shaped spring two, the device is reset. Through the above operation mode, the protrusions during the butt joint of the sheet metal are reduced, the position deviation of the sheet metal during welding is prevented, and the welding quality is improved.

[0015] Preferably, the cleaning assembly includes a piston cylinder fixedly connected to the arc of the arc-shaped fixing block. A plurality of air outlet pipes are communicated with the piston cylinder. A second chute is provided inside the piston cylinder. The left and right inner walls of the base are fixedly connected with piston rods. The side of the two piston rods close to each other slidably penetrates through the piston cylinder. When the arc-shaped fixing block moves to the left, it drives the piston cylinder to move to the left. The piston cylinder stretches the right piston rod, keeping the position of the right piston rod unchanged. Thus, the air in the piston cylinder is discharged through the air outlet pipes by the silica gel plate on the left piston rod to blow off the welding slag on the sheet metal. When the piston cylinder moves to the right, under the action of the right piston rod, the air inside the piston cylinder is pressurized and discharged from the air outlet pipes, and the left piston rod will be stretched, keeping the position of the left piston rod unchanged. Under the action of the air discharge force, the welding slag on the sheet metal is cleaned, preventing cracks from appearing at the welded interface and improving the welding quality.

[0016] The present invention has the following beneficial effects:

[0017] In view of the problem that the welding position of the sheet metal shifts when the welding machine moves, a moving mechanism and a clamping assembly are provided inside the device. Before use, the gap of the sheet metal and the welding machine are in a horizontal state. Then, the motor is started. The motor drives the height of the L-shaped bracket through the threaded rod. When the L-shaped bracket moves downward, under the action of the elastic force of the compression spring, the T-shaped slider moves to the left to prevent the belt from being too long. The L-shaped bracket drives the welding machine to move through the O-shaped plate, so that the welding machine contacts the sheet metal for welding. Then, the electric telescopic rod is started. The electric telescopic rod pushes the O-shaped plate to move to the right to drive the large rack. The large rack drives the first rotating shaft to rotate clockwise through the large gear, so as to pull the belt to move to the right through the pulley, making the left side of the belt shorter and the right side longer. Thus, the belt drives the rectangular slider and the workbench to move to the left through the arc-shaped fixed block, making the workbench and the welding machine move in opposite directions; when the electric telescopic rod pulls the O-shaped plate to drive the large rack to move to the left, the large rack drives the first rotating shaft to rotate counterclockwise through the large gear, so that the workbench moves to the right. Through the above operation mode, the moving distance of the sheet metal is reduced, the welding time is shortened, the position of the sheet metal is prevented from shifting during the movement, and the welding efficiency is improved.

[0018] The present invention utilizes the gravity of the sheet metal. Under the gravity of the sheet metal, the L-shaped block rotates to make the arc-shaped spring two generate elastic force, thereby driving the roller two to move to press the sheet metal. When the L-shaped block rotates, it presses the small rack downward, causing the spring two to be compressed to generate elastic force, so that the small rack moves downward in the first chute to drive the second rotating shaft to rotate through the small gear, thereby driving the wire wheel to rotate and retracting the rope. Thus, the ropes are pulled to make the slides approach each other to fix the sheet metal. When the slides move, the spring one is squeezed to generate elastic force. When the clamping plate fixes the sheet metal, under the action of the spring telescopic rod, it is prevented from damaging the sheet metal during clamping. When the fixed block moves downward to drive the roller one to move, when the roller one presses the sheet metal, the roller one rotates with the fixed block as the fulcrum through the H-shaped bracket, thereby flattening the interface of the two sheet metals. When the sheet metal is taken out after welding, under the action of the elastic forces of the spring one, the spring two and the arc-shaped spring two, the device is reset. Through the above operation mode, the protrusion during the butt joint of the sheet metal is reduced, the position of the sheet metal is prevented from shifting during welding, and the welding quality is improved.

[0019] The present invention utilizes the force generated by the movement of the arc-shaped fixing block. When the arc-shaped fixing block moves to the left, it drives the piston cylinder to move to the left. The piston cylinder stretches the right piston rod, keeping the position of the right piston rod unchanged. Thus, the air inside the piston cylinder is discharged through the air outlet pipe by the silica gel plate on the left piston rod, blowing off the welding slag on the sheet metal. When the piston cylinder moves to the right, under the action of the right piston rod, the air inside the piston cylinder is pressurized and discharged through the air outlet pipe, and the left piston rod will be stretched, keeping the position of the left piston rod unchanged. Under the action of the air discharge force, the welding slag on the sheet metal is cleaned, preventing cracks from appearing at the welding joint and improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 3 It is a schematic cross-sectional view of the moving mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 3 Schematic diagram A;

[0025] Figure 5 It is a schematic cross-sectional view of the clamping assembly of the present invention;

[0026] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of B;

[0027] Figure 7 For the present invention Figure 4 Enlarged schematic diagram of C;

[0028] Figure 8 For the present invention Figure 4 Enlarged schematic diagram of D;

[0029] Figure 9 It is a schematic cross-sectional view of the cleaning mechanism of the present invention.

[0030] In the drawings, the list of components represented by each reference numeral is as follows:

[0031] In the figure: 1. Base; 11. Rectangular bar; 12. Workbench; 13. U-shaped bracket; 14. Motor; 15. Threaded rod; 16. L-shaped bracket; 17. O-shaped plate; 18. Fixed block; 19. Welding machine; 2. Moving mechanism; 21. Rectangular slide bar; 22. Arc-shaped fixed block; 23. Rectangular chute; 24. T-shaped slider; 25. Compression spring; 26. First rotating shaft; 27. Pulley; 28. Belt; 29. Large gear; 210. Large rack; 211. Electric telescopic rod; 3. Clamping assembly; 31. H-shaped bracket; 32. First roller; 33. First arc-shaped spring; 34. L-shaped block; 35. Second roller; 36. Second arc-shaped spring; 37. Trapezoidal chute; 38. Slide plate; 39. Spring telescopic rod; 310. Clamping plate; 311. First spring; 312. Second rotating shaft; 313. Threading wheel; 314. Rope; 315. Small gear; 316. First chute; 317. Small rack; 318. Second spring; 4. Cleaning assembly; 41. Piston cylinder; 42. Air outlet pipe; 43. Second chute; 44. Piston rod. Specific implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Example 1, please refer to Figures 1 - 4 , the present invention is a welding device for sheet metal processing, including a base 1. The inner wall of the base 1 is fixedly connected with a rectangular bar 11. A workbench 12 is slidably connected to the rectangular bar 11. The top of the base 1 is fixedly connected with a U-shaped bracket 13. The top of the U-shaped bracket 13 is fixedly connected with a motor 14. A threaded rod 15 is rotatably connected to the U-shaped bracket 13. The output shaft of the motor 14 is fixedly connected with the threaded rod 15 through a coupling. The motor 14 drives the height of the L-shaped bracket 16 through the threaded rod 15;

[0034] A moving mechanism 2, the moving mechanism 2 includes an arc-shaped fixed block 22, a rectangular slide bar 21 for fixing the arc-shaped fixed block 22, and a clamping assembly 3 for fixing the sheet metal;

[0035] The outer wall of the rectangular slide bar 21 is slidably connected to the inner wall of the base 1. The rectangular slide bar 21 is fixedly connected with the workbench 12. The top outer wall of the rectangular slide bar 21 is fixedly connected with the bottom of the arc-shaped fixed block 22.

[0036] The moving mechanism 2 further includes a rectangular chute 23 formed in the L-shaped bracket 16. A T-shaped slider 24 is slidably connected to the inner wall of the rectangular chute 23. A compression spring 25 is fixedly connected between the right outer wall of the T-shaped slider 24 and the right inner wall of the rectangular chute 23. Rotating shafts 26 are rotatably connected to the outer walls of both the T-shaped slider 24 and the L-shaped bracket 16. Two rotating shafts 26 are rotatably connected to the outer wall of the arc-shaped fixing block 22.

[0037] An L-shaped bracket 16 is slidably connected to the U-shaped bracket 13. The L-shaped bracket 16 is threadedly connected to the threaded rod 15. An O-shaped plate 17 is slidably connected to the outer wall of the L-shaped bracket 16. A fixing block 18 is slidably connected to the O-shaped plate 17. A welding machine 19 is fixedly connected to the bottom of the fixing block 18.

[0038] The moving mechanism 2 further includes belt pulleys 27 fixedly connected to the outer walls of a plurality of rotating shafts 26. A belt 28 is sleeved on the plurality of belt pulleys 27. The two sides of the belt 28 are respectively fixedly connected to the left side and the right side of the base 1. A large gear 29 is fixedly connected to the outer wall of the rotating shaft 26 located above the right side. A large rack 210 is fixedly connected to the bottom of the O-shaped plate 17. An electric telescopic rod 211 is fixedly connected to the L-shaped bracket 16. The right side of the electric telescopic rod 211 is fixedly connected to the O-shaped plate 17. When the L-shaped bracket 16 moves downward, under the action of the elastic force of the compression spring 25, the T-shaped slider 24 moves to the left to prevent the belt 28 from being too long. The L-shaped bracket 16 drives the welding machine 19 to move through the O-shaped plate 17, so that the welding machine 19 contacts the sheet metal for welding. Subsequently, the electric telescopic rod 211 is started. The electric telescopic rod 211 pushes the O-shaped plate 17 to move to the right to drive the large rack 210. The large rack 210 drives the rotating shaft 26 to rotate clockwise through the large gear 29. Thus, the belt 28 is pulled to move to the right through the belt pulley 27, making the left side of the belt 28 shorter and the right side longer. Therefore, the belt 28 drives the rectangular slide bar 21 and the workbench 12 to move to the left through the arc-shaped fixing block 22, so that the workbench 12 and the welding machine 19 move in opposite directions. When the electric telescopic rod 211 pulls the O-shaped plate 17 to drive the large rack 210 to move to the left, the large rack 210 drives the rotating shaft 26 to rotate counterclockwise through the large gear 29, so that the workbench 12 moves to the right. Through the above operation mode, the moving distance of the sheet metal is reduced, the welding time is shortened, the position deviation of the sheet metal during the moving process is prevented, and the welding efficiency is improved.

[0039] Embodiment 2. Please refer to Figures 5 - 9 , on the basis of the first embodiment, the clamping assembly 3 of the present invention for a welding device for sheet metal processing includes two H-shaped brackets 31 rotatably connected to the outer wall of the fixing block 18. Roller 32 is rotatably connected to both of the two H-shaped brackets 31. Arc-shaped springs 33 are fixedly connected to the outer walls of both of the two H-shaped brackets 31. The tops of the two arc-shaped springs 33 are fixedly connected to the arc-shaped fixing block 22.

[0040] The clamping assembly 3 further includes an L-shaped block 34 rotatably connected to the rectangular groove of the workbench 12. Roller two 35 is rotatably connected to the front side and the rear side of the L-shaped block 34. An arc-shaped spring two 36 is fixedly connected to the outer wall of the L-shaped block 34, and the bottom of the arc-shaped spring two 36 is fixedly connected to the workbench 12.

[0041] The clamping assembly 3 further includes a plurality of trapezoidal chutes 37 opened on the workbench 12. A slide plate 38 is slidably connected to the inner wall of each of the plurality of trapezoidal chutes 37. A spring telescopic rod 39 is fixedly connected to the outer wall of each of the plurality of slide plates 38, and a clamping plate 310 is fixedly connected to the outer wall of each of the plurality of spring telescopic rods 39.

[0042] The clamping assembly 3 further includes a spring one 311 fixedly connected to the outer wall of the slide plate 38. The spring one 311 is fixedly connected to the workbench 12. A rotating shaft two 312 is rotatably connected to the rectangular groove of the workbench 12. The left side of the rotating shaft two 312 rotatably penetrates through the workbench 12 and extends into the trapezoidal chute 37. A wire wheel 313 is fixedly connected to the outer wall of the rotating shaft two 312. A rope 314 is fixedly connected to one side of the two slide plates 38 close to each other. The sides of the two ropes 314 away from the slide plates 38 are fixedly connected to the wire wheel 313.

[0043] The clamping assembly 3 further includes a small gear 315 fixedly connected to the outer wall on the right side of the second rotating shaft 312. A first sliding groove 316 is formed at the rectangular groove of the workbench 12. A small rack 317 is slidably connected to the inner wall of the first sliding groove 316. A second spring 318 is fixedly connected between the bottom outer wall of the small rack 317 and the bottom inner wall of the first sliding groove 316. The arc-shaped fixing block 22 is fixedly connected with a cleaning assembly 4. When the sheet metal is placed on the workbench 12, the gravity of the sheet metal drives the L-shaped block 34 to rotate, causing the arc-shaped spring two 36 to generate elastic force, thereby driving the second roller 35 to move to press the sheet metal. When the L-shaped block 34 rotates, it presses the small rack 317 downward, causing the second spring 318 to be compressed to generate elastic force, so that the small rack 317 moves downward in the first sliding groove 316 to drive the second rotating shaft 312 to rotate through the small gear 315, thereby driving the wire wheel 313 to rotate and retracting the rope 314. Thus, the ropes 314 are used to pull the slides 38 closer to each other to fix the sheet metal. When the slides 38 move, the first spring 311 is compressed to generate elastic force. When the clamping plate 310 fixes the sheet metal, under the action of the spring telescopic rod 39, it is prevented that the sheet metal is damaged during clamping. When the fixing block 18 moves downward to drive the first roller 32 to move through the H-shaped bracket 31, when the first roller 32 presses the sheet metal, the first roller 32 rotates with the fixing block 18 as a fulcrum through the H-shaped bracket 31, thereby flattening the interfaces of the two sheet metals. When the sheet metal is taken out after welding is completed, under the action of the elastic forces of the first spring 311, the second spring 318 and the arc-shaped spring two 36, the device is reset. Through the above operation mode, the protrusions during the butt joint of the sheet metal are reduced, the position deviation of the sheet metal during welding is prevented, and the welding quality is improved.

[0044] The cleaning assembly 4 includes a piston cylinder 41 fixedly connected to the arc of the arc-shaped fixing block 22. A plurality of air outlet pipes 42 are communicated with the piston cylinder 41. A second sliding groove 43 is formed inside the piston cylinder 41. The left and right inner walls of the base 1 are fixedly connected with piston rods 44. The sides of the two piston rods 44 close to each other slidably penetrate through the piston cylinder 41. When the arc-shaped fixing block 22 moves to the left, it drives the piston cylinder 41 to move to the left. The piston cylinder 41 stretches the right piston rod 44, keeping the position of the right piston rod 44 unchanged. Thus, the air in the piston cylinder 41 is discharged through the air outlet pipe 42 by the silica gel plate on the left piston rod 44 to blow off the welding slag on the sheet metal. When the piston cylinder 41 moves to the right, under the action of the right piston rod 44, the air inside the piston cylinder 41 is pressurized and discharged from the air outlet pipe 42, and the left piston rod 44 will be stretched, keeping the position of the left piston rod 44 unchanged. Under the action of the air discharge force, the welding slag on the sheet metal is cleaned to prevent cracks from appearing at the welded interface and improve the welding quality.

[0045] A specific application of this embodiment is as follows: When in use, place the two sheet metals to be welded together on the workbench 12. Subsequently, adjust the position of the welding machine 19 through the fixing block 18, and start the motor 14. The motor 14 drives the height of the L-shaped bracket 16 through the threaded rod 15. When the L-shaped bracket 16 moves downward, under the action of the elastic force of the compression spring 25, the T-shaped slider 24 moves to the left to prevent the belt 28 from being too long. The L-shaped bracket 16 drives the welding machine 19 to move through the O-shaped plate 17, so that the welding machine 19 contacts the sheet metal for welding. Subsequently, start the electric telescopic rod 211. The electric telescopic rod 211 pushes the O-shaped plate 17 to move to the right to drive the large rack 210. The large rack 210 drives the rotating shaft one 26 to rotate clockwise through the large gear 29, thereby pulling the belt 28 to move to the right through the pulley 27, making the left side of the belt 28 shorter and the right side longer. Thus, the belt 28 drives the rectangular slide bar 21 and the workbench 12 to move to the left through the arc-shaped fixing block 22, making the workbench 12 and the welding machine 19 move in opposite directions; when the electric telescopic rod 211 pulls the O-shaped plate 17 to drive the large rack 210 to move to the left, the large rack 210 drives the rotating shaft one 26 to rotate counterclockwise through the large gear 29, thereby making the workbench 12 move to the right. Through the above operation mode, the moving distance of the sheet metal is reduced, the welding time is shortened, the position deviation of the sheet metal during the moving process is prevented, and the welding efficiency is improved.

[0046] When the workbench 12 moves, it may cause the position of the sheet metal block to change, making the interfaces of the two sheet metals deviate. When placing the sheet metal on the workbench 12, under the gravity of the sheet metal, the L-shaped block 34 rotates to make the arc-shaped spring two 36 generate elastic force, thereby driving the roller two 35 to move to press the sheet metal. When the L-shaped block 34 rotates, it presses the small rack 317 downward, making the spring two 318 compressed to generate elastic force, so that the small rack 317 moves downward in the chute one 316 to drive the rotating shaft two 312 to rotate through the small gear 315, thereby driving the wire wheel 313 to rotate and retracting the rope 314. Thus, the ropes 314 are pulled to make the sliding plates 38 approach each other, thereby fixing the sheet metal. When the sliding plates 38 move, they squeeze the spring one 311 to generate elastic force. When the clamping plate 310 fixes the sheet metal, under the action of the spring telescopic rod 39, it is prevented that the sheet metal is damaged during clamping. When the fixing block 18 moves downward to drive the roller one 32 to move through the H-shaped bracket 31, when the roller one 32 presses the sheet metal, the roller one 32 rotates with the fixing block 18 as the fulcrum through the H-shaped bracket 31, thereby flattening the interfaces of the two sheet metals. When the sheet metal is taken out after welding, under the action of the elastic forces of the spring one 311, the spring two 318 and the arc-shaped spring two 36, the device is reset to prevent the sheet metal from shifting during welding. Through the above operation mode, the protrusions during the butt joint of the sheet metal are reduced, the position deviation of the sheet metal during welding is prevented, and the welding quality is improved.

[0047] During welding, welding slag may remain on the sheet metal, which may affect the welding quality. When the arc-shaped fixing block 22 moves to the left, it drives the piston cylinder 41 to move to the left. The piston cylinder 41 stretches the right piston rod 44, keeping the position of the right piston rod 44 unchanged. Thus, the air in the piston cylinder 41 is discharged through the air outlet pipe 42 by the silica gel plate on the left piston rod 44 to blow off the welding slag on the sheet metal. When the piston cylinder 41 moves to the right, under the action of the right piston rod 44, the air inside the piston cylinder 41 is pressurized and discharged from the air outlet pipe 42, and the left piston rod 44 will be stretched, keeping the position of the left piston rod 44 unchanged. Under the action of the air discharge force, the welding slag on the sheet metal is cleaned to prevent cracks from appearing at the welding joint and improve the welding quality.

[0048] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A welding device for sheet metal processing, comprising a base (1), wherein a rectangular strip (11) is fixedly connected to the inner wall of the base (1), a workbench (12) is slidably connected to the rectangular strip (11), a U-shaped bracket (13) is fixedly connected to the top of the base (1), a motor (14) is fixedly connected to the top of the U-shaped bracket (13), a threaded rod (15) is rotatably connected to the U-shaped bracket (13), an output shaft of the motor (14) is fixedly connected to the threaded rod (15) through a coupling, and an L-shaped bracket (16) is slidably connected to the U-shaped bracket (13), characterized in that, It further includes: A moving mechanism (2), the moving mechanism (2) includes an arc-shaped fixing block (22), a rectangular slide bar (21) for fixing the arc-shaped fixing block (22), and a clamping assembly (3) for fixing the sheet metal; The outer wall of the rectangular slide bar (21) is slidably connected to the inner wall of the base (1), the rectangular slide bar (21) is fixedly connected to the workbench (12), and the top outer wall of the rectangular slide bar (21) is fixedly connected to the bottom of the arc-shaped fixing block (22); The moving mechanism (2) further includes a rectangular chute (23) opened on the L-shaped bracket (16), a T-shaped slider (24) is slidably connected to the inner wall of the rectangular chute (23), and a compression spring (25) is fixedly connected between the right outer wall of the T-shaped slider (24) and the right inner wall of the rectangular chute (23). A first rotating shaft (26) is rotatably connected to the outer walls of both the T-shaped slider (24) and the L-shaped bracket (16), and two first rotating shafts (26) are rotatably connected to the outer wall of the arc-shaped fixing block (22); The L-shaped bracket (16) is threadedly connected to the threaded rod (15), an O-shaped plate (17) is slidably connected to the outer wall of the L-shaped bracket (16), a fixing block (18) is slidably connected to the O-shaped plate (17), and a welding machine (19) is fixedly connected to the bottom of the fixing block (18); The moving mechanism (2) further includes pulley wheels (27) fixedly connected to the outer walls of several first rotating shafts (26), a belt (28) is sleeved on several pulley wheels (27), and both sides of the belt (28) are fixedly connected to the left side and the right side of the base (1) respectively. A large gear (29) is fixedly connected to the outer wall of the first rotating shaft (26) located above the right side, a large rack (210) is fixedly connected to the bottom of the O-shaped plate (17), and an electric telescopic rod (211) is fixedly connected to the L-shaped bracket (16), and the right side of the electric telescopic rod (211) is fixedly connected to the O-shaped plate (17).

2. The welding device for sheet metal processing according to claim 1, characterized in that: The clamping assembly (3) includes two H-shaped brackets (31) rotatably connected to the outer wall of the fixing block (18), a first roller (32) is rotatably connected to both of the two H-shaped brackets (31), arc-shaped springs I (33) are fixedly connected to the outer walls of both of the two H-shaped brackets (31), and the tops of both of the arc-shaped springs I (33) are fixedly connected to the arc-shaped fixing block (22).

3. A welding device for sheet metal processing according to claim 2, characterized in that: The clamping assembly (3) further includes an L-shaped block (34) rotatably connected to the rectangular groove of the workbench (12), a second roller (35) is rotatably connected to the front side and the rear side of the L-shaped block (34), an arc-shaped spring II (36) is fixedly connected to the outer wall of the L-shaped block (34), and the bottom of the arc-shaped spring II (36) is fixedly connected to the workbench (12).

4. A welding device for sheet metal processing according to claim 3, characterized in that: The clamping assembly (3) further includes a plurality of trapezoidal chutes (37) opened on the workbench (12). The inner walls of the plurality of trapezoidal chutes (37) are all slidably connected with sliding plates (38). The outer walls of the plurality of sliding plates (38) are all fixedly connected with spring telescopic rods (39). The outer walls of the plurality of spring telescopic rods (39) are all fixedly connected with clamping plates (310).

5. A welding device for sheet metal processing according to claim 4, characterized in that: The clamping assembly (3) further includes a first spring (311) fixedly connected to the outer wall of the sliding plate (38). The first spring (311) is fixedly connected with the workbench (12). A second rotating shaft (312) is rotatably connected to the rectangular groove of the workbench (12). The left side of the second rotating shaft (312) rotatably penetrates the workbench (12) and extends into the trapezoidal chute (37). A wire wheel (313) is fixedly connected to the outer wall of the second rotating shaft (312). A rope (314) is fixedly connected to the side of the two sliding plates (38) close to each other. The sides of the two ropes (314) away from the sliding plates (38) are fixedly connected with the wire wheel (313).

6. The welding device for sheet metal processing according to claim 5, wherein: The clamping assembly (3) further includes a small gear (315) fixedly connected to the outer wall on the right side of the second rotating shaft (312). A first chute (316) is opened at the rectangular groove of the workbench (12). A small rack (317) is slidably connected to the inner wall of the first chute (316). A second spring (318) is fixedly connected between the bottom outer wall of the small rack (317) and the bottom inner wall of the first chute (316). The arc-shaped fixed block (22) is fixedly connected with a cleaning assembly (4).

7. A welding device for sheet metal processing according to claim 6, characterized in that: The cleaning assembly (4) includes a piston cylinder (41) fixedly connected to the arc of the arc-shaped fixed block (22). A plurality of air outlet pipes (42) are communicated with the piston cylinder (41). A second chute (43) is opened inside the piston cylinder (41). The left and right inner walls of the base (1) are both fixedly connected with piston rods (44). The sides of the two piston rods (44) close to each other slidably penetrate the piston cylinder (41).

Images