Welding tool for sheet metal machining

Abstract

The invention belongs to the technical field of sheet metal machining, and particularly relates to a welding tool for sheet metal machining, which comprises a base, a welding mechanical arm main body and a feeding mechanical arm main body, the welding mechanical arm main body and the feeding mechanical arm main body are both fixedly mounted on the base, and a welding gun is arranged at one end of the welding mechanical arm main body. A plate positioning and splicing assembly and a plate moving auxiliary assembly are arranged on the base. A plurality of plates can be sequentially welded into a frame-shaped structure through the plate positioning and splicing assembly and the plate moving auxiliary assembly, the plates are arranged in a linear mode before being clamped, the contours and the directions of the plates can be easily recognized through a visual detection system on the feeding mechanical arm body, and the machining precision of the plates is improved. And the plate is accurately placed on the sliding block according to a preset path. Therefore, the situation that recognition fails or the grabbing posture is improper due to the fact that the plates are placed irregularly is avoided, and the splicing precision and the continuous welding efficiency of the subsequent plates can be improved.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal processing technology, specifically a welding fixture for sheet metal processing. Background Technology

[0002] Sheet metal is characterized by its light weight, high strength, low cost, and suitability for mass production. It is widely used in electronics, communications, automotive, and medical device industries. During the production and processing of sheet metal parts, welding is frequently used to fix the various plates together to form the desired shape.

[0003] In the existing technology, when welding sheet metal, it is often necessary to weld four rectangular plates of the same size together with their edges aligned to form a frame-shaped basic structural component for subsequent production of boxes, cabinets and other parts.

[0004] To improve efficiency and save manpower, robotic arms are typically used to grip the panels and place them in fixtures, which then position and secure the panels. Subsequently, multiple fixtures move relative to each other on a positioning platform, causing the edges of the panels to fit together and initially form a frame structure, which is then welded using a welding torch.

[0005] To achieve precise gripping, robotic arms are typically equipped with vision inspection systems to identify the contours and poses of sheet metal parts. When multiple sheet metal parts are arranged in a fixed direction and do not obstruct each other, the vision system can reliably identify them.

[0006] However, in actual production, after processes such as stamping and inspection, sheet metal parts are often stacked or scattered in a disordered state on the conveyor line or in the bins. At this time, the vision inspection system of the robotic arm is easily interfered with by the irregular placement of the sheet metal parts, resulting in recognition failure or improper gripping posture, which in turn affects the splicing accuracy of subsequent sheet metal parts and the efficiency of continuous welding. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a welding fixture for sheet metal processing.

[0008] The technical solution adopted by the present invention to solve its technical problem is: a welding fixture for sheet metal processing, including a base, a welding robotic arm body, and a loading robotic arm body. The welding robotic arm body and the loading robotic arm body are both fixedly installed on the base. A welding gun is provided at one end of the welding robotic arm body. A plate positioning and splicing assembly and a plate moving auxiliary assembly are provided on the base.

[0009] The panel positioning and splicing assembly includes a splicing platform fixedly connected to one side of the upper surface of the base. A sliding groove is provided on the splicing platform at 90° intervals along the circumference, and a slider is slidably arranged in each sliding groove. A clamping block one is fixedly connected to one side of the upper end of the slider, and a clamping block two is slidably connected to the other side. The clamping block one and the clamping block two cooperate with each other to clamp the panel.

[0010] The panel transfer auxiliary component includes a frame and a machine frame, both of which are fixedly connected to a base. A conveyor belt is provided on the machine frame. The upper edge of the frame is aligned with the edge of the conveyor belt. A placement plate is slidably connected to one side of the inner wall of the frame. A push plate is slidably connected to one side of the inner wall of the frame. A push plate is slidably inserted into one end of the push plate. One side surface of the push plate is in contact with one end of the placement plate.

[0011] Preferably, a cylinder five is fixedly connected to the middle of the lower end face of the splicing platform, and a connecting block is fixedly connected to the piston end of the cylinder five. A connecting rod is rotatably arranged on one side of the lower end of the slider, and one end of the connecting rod is rotatably arranged at the bottom of the slider. A cylinder four is fixedly connected to one side of the slider, and the piston end of the cylinder four is fixedly connected to one side of the clamping block two.

[0012] Preferably, two guide rods are slidably connected to one side of the upper end of the frame, and one end of the two guide rods is fixedly connected to a limit plate. The bottom of the limit plate is in contact with the upper surface of the conveyor belt. A cylinder is fixedly connected to one side of the upper end of the frame, and the piston end of the cylinder is fixedly connected to one side of the limit plate.

[0013] Preferably, a cylinder seven is fixedly connected to one side of the push plate, and the piston end of the cylinder seven is fixedly connected to one side of the push plate. A cylinder one is fixedly connected to one side of the frame, and the piston end of the cylinder one is fixedly connected to one end of the push plate.

[0014] Preferably, one end of the main body of the loading robotic arm is equipped with a vacuum generator and a suction cup, and the vacuum port of the vacuum generator is connected to the suction cup through a flexible pipeline.

[0015] Preferably, a cylinder six is ​​fixedly connected to one side of the inner wall of the frame, and the piston end of the cylinder six is ​​fixedly connected to one side of the placement plate. Two guide rods two are slidably connected to one side of the frame, and one end of the two guide rods two is fixedly connected to a push plate three. A cylinder two is fixedly connected to one side of the outer wall of the frame, and the piston end of the cylinder two is fixedly connected to one side of the push plate three.

[0016] Preferably, it includes a material lifting auxiliary component;

[0017] The lifting auxiliary component includes a tilting plate rotatably mounted on one side of the placement plate, and a hydraulic cylinder rotatably mounted on one side of the bottom of the placement plate, with the piston end of the hydraulic cylinder rotatably connected to one side of the bottom of the tilting plate.

[0018] Preferably, a fixing cylinder is fixedly connected to one side of the lower end face of the placement plate via a fixing rod, and a fixing rod is fixedly connected to one side of the fixing cylinder. Both ends of the fixing rod are fixedly connected to fixing cylinders. A rotating shaft is rotatably mounted at one end of the inner cavity of the fixing cylinder, and a baffle cloth is wound around the rotating shaft. The baffle cloth slides through one side of the fixing cylinder and its end is fixedly connected to the bottom of the flipping plate. A rotating shaft is rotatably mounted at one end of the inner cavity of the fixing cylinder, and a baffle cloth is wound around the rotating shaft. The baffle cloth slides through one side of the fixing cylinder and its end is fixedly connected to the bottom of the flipping plate.

[0019] Preferably, a second spring is sleeved on one end of the rotating shaft, one end of the second spring is fixedly connected to the end of the rotating shaft, and the other end is fixedly connected to one side of the inner wall of the fixed cylinder.

[0020] Preferably, a spring is sleeved on one end of the rotating shaft 2, one end of the spring is fixedly connected to one end of the rotating shaft 2, and the other end is fixedly connected to one side of the inner wall of the fixed cylinder 2.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. The sheet metal processing welding fixture of the present invention utilizes a sheet metal positioning and splicing component and a sheet metal transfer auxiliary component to sequentially weld multiple sheets into a frame structure. Before being gripped, the sheets are arranged linearly, allowing the vision inspection system on the loading robotic arm to easily identify the outline and orientation of the sheets and accurately place them on the slider according to a preset path. This avoids recognition failures or improper gripping postures caused by irregular sheet placement, thus improving the splicing accuracy of subsequent sheets and the efficiency of continuous welding.

[0023] 2. The sheet metal processing welding fixture of the present invention utilizes a lifting auxiliary component. During the sliding of the sheet metal, a hydraulic cylinder intermittently drives a tilting plate to rotate. When the tilting plate rotates, it lifts multiple sheets above it, causing them to fall onto the lifting surface. This allows multiple sheets to move continuously, clearing blockages through movement. The sheets also continuously adjust their posture until they are correctly positioned on the lifting surface, ensuring the smooth progress of subsequent arrangement and welding. Furthermore, the rotation of the tilting plate pulls the ends of baffles one and two, while the rotation of shaft two and shaft one unwinds baffles one and two. These unwinding portions are kept taut by springs one and two, filling the gap between the tilting plate and the placement plate, thus preventing the sheets from falling out. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of the frame.

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure at the placement of the board;

[0028] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the frame;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the barrier fabric;

[0030] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the two push plates;

[0032] Figure 8 This is a schematic diagram of the three-dimensional structure of the main body of the welding robotic arm;

[0033] Figure 9 This is a schematic diagram of the three-dimensional structure of the vacuum generator.

[0034] Figure 10 This is a schematic diagram of the three-dimensional structure at the splicing platform;

[0035] Figure 11 This is a three-dimensional structural diagram of the rack from another perspective;

[0036] Figure 12 This is a schematic diagram of the three-dimensional structure of the slider.

[0037] In the diagram: 1. Base; 2. Main body of welding robotic arm; 3. Main body of loading robotic arm; 4. Frame; 5. Placement plate; 6. Machine frame; 7. Limiting plate; 8. Cylinder 1; 9. Cylinder 2; 10. Cylinder 3; 11. Welding torch; 12. Vacuum generator; 13. Suction cup; 14. Guide rod 1; 15. Conveyor belt; 16. Splicing table; 17. Slider; 18. Cylinder 4; 19. Cylinder 5; 20. Connecting block; 21. Connecting rod; 22. 23. Clamping block 1; 24. Clamping block 2; 25. Guide rod 2; 26. Push plate 3; 27. Hydraulic cylinder; 28. Push plate 1; 29. ​​Push plate 2; 30. Cylinder 6; 31. Cylinder 7; 32. Fixing rod 1; 33. Fixing cylinder 1; 34. Fixing rod 2; 35. Baffle 1; 36. Baffle 2; 37. Spring 1; 38. Spring 2; 39. Rotating shaft 1; 40. Rotating shaft 2; 41. Tilting plate. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described 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.

[0039] Please refer to Figures 1-12 The present invention provides a technical solution: a welding fixture for sheet metal processing, including a base 1, a welding robotic arm body 2, and a loading robotic arm body 3. The welding robotic arm body 2 and the loading robotic arm body 3 are both fixedly installed on the base 1. A welding gun 11 is provided at one end of the welding robotic arm body 2. A plate positioning and splicing assembly and a plate moving auxiliary assembly are provided on the base 1.

[0040] The panel positioning and splicing assembly includes a splicing platform 16 fixedly connected to one side of the upper surface of the base 1. A sliding groove is provided on the splicing platform 16 every 90° along the circumference, and a slider 17 is slidably arranged in each sliding groove. A clamping block 22 is fixedly connected to one side of the upper end of the slider 17, and a clamping block 23 is slidably connected to the other side. The clamping block 22 and the clamping block 23 cooperate with each other to clamp the panel.

[0041] The panel transfer auxiliary component includes a frame 4 and a frame 6. Both the frame 4 and the frame 6 are fixedly connected to the base 1. A conveyor belt 15 is provided on the frame 6. The upper edge of the frame 4 is aligned with the edge of the conveyor belt 15. A placement plate 5 is slidably connected to one side of the inner wall of the frame 4. A push plate 27 is slidably connected to one side of the inner wall of the frame 4. A push plate 28 is slidably inserted into one end of the push plate 27. One side surface of the push plate 28 is in contact with one end of the placement plate 5.

[0042] In this embodiment, as Figures 2-4 , Figures 10-12 As shown, a cylinder 19 is fixedly connected to the middle of the lower end face of the splicing platform 16. A connecting block 20 is fixedly connected to the piston end of the cylinder 19. A connecting rod 21 is rotatably set on one side of the lower end of the slider 17. One end of the connecting rod 21 is rotatably set at the bottom of the slider 17. A cylinder 18 is fixedly connected to one side of the slider 17. The piston end of the cylinder 18 is fixedly connected to one side of the clamping block 23.

[0043] Two guide rods 14 are slidably connected to one side of the upper end of the frame 6. One end of the two guide rods 14 is fixedly connected to a limit plate 7. The bottom of the limit plate 7 is in contact with the upper surface of the conveyor belt 15. A cylinder 3 10 is fixedly connected to one side of the upper end of the frame 6. The piston end of the cylinder 3 10 is fixedly connected to one side of the limit plate 7.

[0044] A cylinder 30 is fixedly connected to one side of push plate 27. The piston end of cylinder 30 is fixedly connected to one side of push plate 28. A cylinder 8 is fixedly connected to one side of frame 4. The piston end of cylinder 8 is fixedly connected to one end of push plate 27.

[0045] The main body 3 of the loading robotic arm is equipped with a vacuum generator 12 and a suction cup 13 at one end. The vacuum port of the vacuum generator 12 is connected to the suction cup 13 through a flexible pipeline.

[0046] A cylinder 29 is fixedly connected to one side of the inner wall of the frame 4. The piston end of the cylinder 29 is fixedly connected to one side of the placement plate 5. Two guide rods 24 are slidably connected to one side of the frame 4. One end of the two guide rods 24 is fixedly connected to a push plate 25. A cylinder 29 is fixedly connected to one side of the outer wall of the frame 4. The piston end of the cylinder 29 is fixedly connected to one side of the push plate 25.

[0047] Specifically, in the existing technology, when welding sheet metal, it is often necessary to weld four rectangular plates of the same size together with their edges aligned to form a frame-shaped basic structural component for subsequent production of boxes, cabinets and other parts.

[0048] To improve efficiency and save manpower, robotic arms are typically used to grip the panels and place them in fixtures, which then position and secure the panels. Subsequently, multiple fixtures move relative to each other on a positioning platform, causing the edges of the panels to fit together and initially form a frame structure, which is then welded using a welding torch.

[0049] To achieve precise gripping, robotic arms are typically equipped with vision inspection systems to identify the contours and poses of sheet metal parts. When multiple sheet metal parts are arranged in a fixed direction and do not obstruct each other, the vision system can reliably identify them.

[0050] However, in actual production, after processes such as stamping and inspection, sheet metal parts are often stacked or scattered in a disordered state on the conveyor line or in the bins. At this time, the vision inspection system of the robotic arm is easily interfered with by the irregular placement of the sheet metal parts, resulting in recognition failure or improper gripping posture, which in turn affects the splicing accuracy of subsequent sheet metal parts and the efficiency of continuous welding.

[0051] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0052] This solution is applied to welding rectangular plates of the same specifications in the same batch, where the length of the plates is greater than their width. First, the upper surfaces of push plate 1 (27) and push plate 2 (28) cooperate to form a rectangular lifting surface, using the space between the limiting plate 7 and the upper edge of the frame 4 as a plate channel. Therefore, according to the dimensions of the rectangular plate, the width of the lifting surface can be adjusted to a specific value by using cylinder 7 (30) to slide push plate 2 (28) on push plate 1 (27). The function of this specific value will be described later. Furthermore, after the position of push plate 2 (28) changes, cylinder 6 (29) can move the placement plate 5, keeping the end of the placement plate 5 in contact with the surface of push plate 2 (28).

[0053] Similarly, cylinder 310 drives the limiting plate 7 to move laterally, adjusting the width of the plate channel so that the width is equal to the width of the plate.

[0054] After completing the above adjustments, connect the placement plate 5 to the plate conveyor line, or pour multiple plates from the container onto the placement plate 5. Both methods allow multiple plates to be positioned on the placement plate 5. Then, use cylinder 8 to move push plates 27 and 28 up and down reciprocally. When push plates 27 and 28 are at their lowest point, the lifting surface is aligned with the upper surface of the placement plate 5; when push plates 27 and 28 are at their highest point, the lifting surface is aligned with the upper edge of the frame 4. When push plates 27 and 28 are at their lowest point, because the placement plate 5 and the lifting surface are tilted in the same direction, the plates will slide down towards the lifting surface under gravity. However, due to the limited area of ​​the lifting surface, only a portion of the plates can be lifted when the lifting surface rises. Furthermore, since the width of the lifting surface is a specific value, and this specific value is less than the width of the board and within a reasonable range, the board can only rise stably when its width direction is parallel to the width direction of the lifting surface, or when the board is standing upright on the lifting surface; otherwise, the board will fall off the lifting surface during the ascent due to imbalance. This is the first screening of the board; only flat boards with their width direction parallel to the width direction of the lifting surface or upright boards can rise stably.

[0055] As the lifting surface rises, when the distance between the lifting surface and the lower surface of push plate 25 is equal to the width of the plate, the lifting surface stops rising. Cylinder 29 drives push plate 25 to move until it passes the lifting surface, thus pushing down any upright or overlapping plates. Then push plate 25 resets, and the lifting surface continues to rise. At this time, multiple plates on the lifting surface are laid flat and facing the same direction. When the lifting surface is flush with the upper edge of frame 4, the plates slide onto conveyor belt 15 and are placed in the plate channel, then moved by conveyor belt 15. Since the width of the plate channel matches the width of the plates, and the length direction of the plates is in the same direction as the conveying direction, the plates will be arranged linearly in a flat state on conveyor belt 15.

[0056] At this time, the vision detection system on the main body 3 of the loading robot arm can identify the status of the plates on the conveyor belt 15. When a plate reaches the end of the conveyor belt 15, the conveyor belt 15 stops running, and the main body 3 of the loading robot arm drives the suction cup 13 to move, so that the suction cup 13 is in contact with the surface of the plate located at the end of the conveyor belt 15. Then, the vacuum generator 12 is started, and the suction cup 13 can be used to adsorb and fix the plate. Then, the plate is placed on the upper surface of the slider 17, and then the corresponding cylinder 18 drives the clamping block 23 to move, so that the plate is clamped by the action of the clamping block 22 and the clamping block 23. Then the suction cup 13 releases the plate, and the above operation is repeated to remove the plate from the conveyor belt 15 again until all four sliders 17 are fixed with plates.

[0057] Then, the connecting block 20 is lowered by cylinder 5 19, and multiple sliders 17 move radially simultaneously under the transmission of connecting rod 21 until the edges of the four plates are in contact. At this time, the welding robot arm 2 can move the welding gun 11 and use the welding gun 11 to weld the joints of the four plates. After welding is completed, the loading robot arm 3 removes the welded frame structure from the splicing table 16.

[0058] By repeating the above operations, multiple plates can be welded sequentially into a frame structure. Before being gripped, the plates are arranged linearly, allowing the vision inspection system on the main body 3 of the loading robotic arm to easily identify the outline and orientation of the plates and accurately place them on the slider 17 according to a preset path. This avoids recognition failures or improper gripping postures caused by irregular plate placement, thus improving the splicing accuracy and continuous welding efficiency of subsequent plates.

[0059] In this embodiment, as Figures 3-7 As shown, it includes a material lifting auxiliary component;

[0060] The lifting auxiliary component includes a tilting plate 41 rotatably disposed on one side of the placement plate 5, and a hydraulic cylinder 26 rotatably disposed on one side of the bottom of the placement plate 5, with the piston end of the hydraulic cylinder 26 rotatably connected to one side of the bottom of the tilting plate 41.

[0061] A fixing cylinder 32 is fixedly connected to one side of the lower end face of the placement plate 5 via a fixing rod 31. A fixing rod 33 is fixedly connected to one side of the fixing cylinder 32. A fixing cylinder 34 is fixedly connected to both ends of the fixing rod 33. A rotating shaft 39 is rotatably installed at one end of the inner cavity of the fixing cylinder 32. A baffle 36 is wound around the rotating shaft 39. The baffle 36 slides through one side of the fixing cylinder 32, and its end is fixedly connected to the bottom of the flip plate 41. A rotating shaft 40 is rotatably installed at one end of the inner cavity of the fixing cylinder 34. A baffle 35 is wound around the rotating shaft 40. The baffle 35 slides through one side of the fixing cylinder 34, and its end is fixedly connected to the bottom of the flip plate 41.

[0062] One end of the rotating shaft 39 is fitted with a spring 38. One end of the spring 38 is fixedly connected to the end of the rotating shaft 39, and the other end is fixedly connected to one side of the inner wall of the fixed cylinder 32.

[0063] One end of the rotating shaft 2 40 is fitted with a spring 37. One end of the spring 37 is fixedly connected to one end of the rotating shaft 2 40, and the other end is fixedly connected to one side of the inner wall of the fixed cylinder 2 34.

[0064] Specifically, in the above embodiments, although the plates can slide onto the lifting surface for loading, when there are a large number of plates, jamming can easily occur on the placement plate 5. Furthermore, if the plates are not in the correct orientation, they will be unable to be lifted, thus affecting the subsequent arrangement and welding work.

[0065] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0066] When the plates are placed on the placement plate 5, they will slide onto the tilting plate 41 and then slide along the tilting plate 41 towards the lifting surface. During the sliding process, the hydraulic cylinder 26 can intermittently rotate the tilting plate 41. When the tilting plate 41 rotates, it will lift up multiple plates above it and cause them to fall towards the lifting surface. In this way, multiple plates can be continuously moved to clear blockages. Furthermore, the plates will continuously adjust their posture as they move until they are correctly positioned on the lifting surface, thus ensuring the normal progress of subsequent arrangement and welding work.

[0067] Furthermore, since a gap appears between the flip plate 41 and the placement plate 5 when the flip plate 41 rotates, the plates can easily fall out through this gap, affecting normal loading. Therefore, to avoid this situation, when the flip plate 41 rotates, it pulls the ends of the first baffle 35 and the second baffle 36 to move. At the same time, the second shaft 40 and the first shaft 39 rotate, unwinding the first baffle 35 and the second baffle 36. The unwinding portion of the first baffle 35 and the second baffle 36 is kept taut by the action of the first spring 37 and the second spring 38, thus filling the gap between the flip plate 41 and the placement plate 5 and preventing the plates from falling out. When the flip plate 41 resets, the first baffle 35 and the second baffle 36 are wound up again by the action of the first spring 37 and the second spring 38, thus ensuring that the first baffle 35 and the second baffle 36 can work continuously and stably.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for sheet metal processing, comprising a base (1), a welding robotic arm body (2), and a loading robotic arm body (3), wherein the welding robotic arm body (2) and the loading robotic arm body (3) are both fixedly mounted on the base (1), and a welding torch (11) is provided at one end of the welding robotic arm body (2), characterized in that: The base (1) is provided with a plate positioning and splicing assembly and a plate material transfer auxiliary assembly; The panel positioning and splicing assembly includes a splicing platform (16) fixedly connected to one side of the upper surface of the base (1). A sliding groove is provided on the splicing platform (16) every 90° along the circumference, and a slider (17) is slidably arranged in each sliding groove. A clamping block one (22) is fixedly connected to one side of the upper end of the slider (17), and a clamping block two (23) is slidably connected to the other side. The clamping block one (22) and the clamping block two (23) cooperate with each other to clamp the panel. The plate transfer auxiliary component includes a frame (4) and a frame (6). The frame (4) and the frame (6) are both fixedly connected to the base (1). A conveyor belt (15) is provided on the frame (6). The upper edge of the frame (4) is aligned with the edge of the conveyor belt (15). A placement plate (5) is slidably connected to one side of the inner wall of the frame (4). A push plate (27) is slidably connected to one side of the inner wall of the frame (4). A push plate (28) is slidably inserted into one end of the push plate (27). One side surface of the push plate (28) is in contact with one end of the placement plate (5).

2. The welding fixture for sheet metal processing according to claim 1, characterized in that: A cylinder five (19) is fixedly connected to the middle of the lower end face of the splicing platform (16). A connecting block (20) is fixedly connected to the piston end of the cylinder five (19). A connecting rod (21) is rotatably arranged on one side of the lower end of the slider (17). One end of the connecting rod (21) is rotatably arranged at the bottom of the slider (17). A cylinder four (18) is fixedly connected to one side of the slider (17). The piston end of the cylinder four (18) is fixedly connected to one side of the clamping block two (23).

3. The welding fixture for sheet metal processing according to claim 1, characterized in that: Two guide rods (14) are slidably connected to one side of the upper end of the frame (6). One end of the two guide rods (14) is fixedly connected to a limiting plate (7). The bottom of the limiting plate (7) is in contact with the upper surface of the conveyor belt (15). A cylinder (10) is fixedly connected to one side of the upper end of the frame (6). The piston end of the cylinder (10) is fixedly connected to one side of the limiting plate (7).

4. The welding fixture for sheet metal processing according to claim 1, characterized in that: A cylinder seven (30) is fixedly connected to one side of the push plate one (27), and the piston end of the cylinder seven (30) is fixedly connected to one side of the push plate two (28). A cylinder one (8) is fixedly connected to one side of the frame (4), and the piston end of the cylinder one (8) is fixedly connected to one end of the push plate one (27).

5. The welding fixture for sheet metal processing according to claim 1, characterized in that: The main body (3) of the loading robot arm is equipped with a vacuum generator (12) and a suction cup (13) at one end. The vacuum port of the vacuum generator (12) is connected to the suction cup (13) through a flexible pipeline.

6. The welding fixture for sheet metal processing according to claim 1, characterized in that: A cylinder six (29) is fixedly connected to one side of the inner wall of the frame (4). The piston end of the cylinder six (29) is fixedly connected to one side of the placement plate (5). Two guide rods two (24) are slidably connected to one side of the frame (4). One end of the two guide rods two (24) is fixedly connected to a push plate three (25). A cylinder two (9) is fixedly connected to one side of the outer wall of the frame (4). The piston end of the cylinder two (9) is fixedly connected to one side of the push plate three (25).

7. The welding fixture for sheet metal processing according to claim 1, characterized in that: Including material lifting auxiliary components; The lifting auxiliary component includes a flipping plate (41) rotatably disposed on one side of the placement plate (5), and a hydraulic cylinder (26) rotatably disposed on one side of the bottom of the placement plate (5), with the piston end of the hydraulic cylinder (26) rotatably connected to one side of the bottom of the flipping plate (41).

8. The welding fixture for sheet metal processing according to claim 7, characterized in that: One side of the lower end face of the placement plate (5) is fixedly connected to a fixed cylinder (32) by a fixed rod (31). One side of the fixed cylinder (32) is fixedly connected to a fixed rod (33). Both ends of the fixed rod (33) are fixedly connected to a fixed cylinder (34). One end of the inner cavity of the fixed cylinder (32) is rotatably provided with a rotating shaft (39). A baffle (36) is wound around the rotating shaft (39). The baffle (36) slides through one side of the fixed cylinder (32), and the end of the baffle (36) is fixedly connected to the bottom of the flip plate (41). One end of the inner cavity of the fixed cylinder (34) is rotatably provided with a rotating shaft (40). A baffle (35) is wound around the rotating shaft (40). The baffle (35) slides through one side of the fixed cylinder (34), and the end of the baffle (35) is fixedly connected to the bottom of the flip plate (41).

9. A welding fixture for sheet metal processing according to claim 8, characterized in that: One end of the rotating shaft (39) is fitted with a spring spring (38). One end of the spring spring (38) is fixedly connected to the end of the rotating shaft (39), and the other end is fixedly connected to one side of the inner wall of the fixed cylinder (32).

10. A welding fixture for sheet metal processing according to claim 8, characterized in that: One end of the rotating shaft 2 (40) is fitted with a spring spring 1 (37). One end of the spring spring 1 (37) is fixedly connected to one end of the rotating shaft 2 (40), and the other end is fixedly connected to one side of the inner wall of the fixed cylinder 2 (34).

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