Laser welding device for sheet metal machining

Abstract

The utility model discloses a laser welding device for sheet metal processing, relates to the technical field of sheet metal processing, aims to solve the technical problem that a current laser welding machine is inconvenient to quickly weld and process multiple groups of bent edge gaps of a square box-shaped sheet metal, and comprises a laser welding machine. According to the utility model, the fixed platform is designed and consists of the base, the pushing structure and the driving structure, so that the square box-shaped metal plate can be directly inserted into the driving structure when the bending edge gap of the square box-shaped metal plate is welded, and then the pushing structure is controlled to abut against the square box-shaped metal plate; at the moment, the square box-shaped metal plate is fixed through a first jacking and pressing disc on the jacking and pushing structure and a second jacking and pressing disc on the driving structure, and then the square box-shaped metal plate can be directly driven to rotate through the driving structure, so that the adjustment of the gap of the bent edge of the square box-shaped metal plate can be rapidly completed; and therefore, the laser welding machine can quickly complete welding work on four groups of bent edge gaps of the square box-shaped metal plate.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and more specifically, to a laser welding device for sheet metal processing. Background Technology

[0002] Sheet metal processing is a comprehensive cold working process for thin metal sheets (usually less than 6mm), including shearing, punching / cutting / combined cutting, bending, riveting, splicing, and forming (such as car bodies). Its significant feature is that the thickness of the same part is consistent. For square box-shaped sheet metal processing, it is necessary to weld and fix the gaps of its bending edges. At this time, a laser welding device, i.e., a laser welding machine, is required.

[0003] When welding the bends of square box-shaped sheet metal, existing laser welding machines typically weld and fix the gaps of two adjacent sets of bends at a time. After welding, personnel need to manually adjust the direction of the square box-shaped sheet metal to continue welding the gaps of other adjacent sets of bends. This operation is cumbersome and not convenient for rapid welding of multiple sets of bends of square box-shaped sheet metal. In view of this, we propose a laser welding device for sheet metal processing. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a laser welding device for sheet metal processing, so as to solve the technical problem that current laser welding machines are not convenient for rapid welding of multiple sets of bending edge gaps of square box-shaped sheet metal.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a laser welding device for sheet metal processing, including a laser welding machine, a fixed platform arranged on the top of the laser welding machine, the fixed platform including a base, a pushing structure and a driving structure, the base being arranged on the laser welding machine, the pushing structure being arranged on the rear side of the top of the base, and the driving structure being arranged on the front side of the top of the base, the pushing structure and the driving structure being arranged symmetrically.

[0006] The drive structure is provided with four sets of limiting structures, which are arranged in a cross shape. Each limiting structure includes a mating structure and a limiting frame. The mating structure is arranged on the drive structure, and the limiting frame is arranged on the mating structure. The limiting frame has a U-shaped design.

[0007] This invention utilizes a designed fixed platform, comprised of a base, a pushing structure, and a driving structure. Therefore, when welding the bends of a square box-shaped sheet metal, the sheet metal can be directly inserted into the driving structure. The pushing structure then engages with the sheet metal, fixing it in place with the first pressure plate on the pushing structure and the second pressure plate on the driving structure. The driving structure then directly rotates the sheet metal, allowing for rapid adjustment of the bends and facilitating the laser welding machine's quick welding of the four bends. Furthermore, this invention incorporates four sets of limiting structures arranged in a cross shape around the second pressure plate of the driving structure. Each set corresponds to one bend of the square box-shaped sheet metal and consists of a mating structure and a limiting frame. The limiting brackets are U-shaped. Therefore, when the second top pressure plate fixes the square box-shaped sheet metal, the limiting brackets can be adjusted according to the length and inclination angle of the bent edges of the square box-shaped sheet metal under the action of the cooperating structure. Then, the four sets of U-shaped limiting brackets respectively engage with the four sets of bent edges of the square box-shaped sheet metal, thereby achieving bidirectional limiting of the bent edges. Firstly, it can improve the stability of the second top pressure plate cooperating with the first top pressure plate to press and fix the square box-shaped sheet metal, so that the square box-shaped sheet metal will not be displaced during rotation. This facilitates precise rotation adjustment of the gaps of the bent edges of the square box-shaped sheet metal, thereby ensuring the welding effect of the rotation adjustment of the gaps of the bent edges of the square box-shaped sheet metal. Secondly, it can limit the bending edges of the square box-shaped sheet metal, preventing the bending edges from being misaligned during rotation, which would affect the welding effect. This further ensures the welding effect of the rotation adjustment of the gaps of the bent edges of the square box-shaped sheet metal.

[0008] Preferably, the pushing structure includes a first mounting plate, a first pressure plate, and an electro-hydraulic push rod. The first mounting plate is arranged on the base, the electro-hydraulic push rod is arranged on the first mounting plate, and the first pressure plate is rotatably arranged on the piston end of the electro-hydraulic push rod.

[0009] Preferably, the drive structure includes a second mounting plate, a motor, a connecting rod, and a second pressure plate. The second mounting plate is arranged on the base and is symmetrically arranged with the first mounting plate. The motor is arranged on the second mounting plate. The connecting rod is arranged on the rotating shaft at the output end of the motor. The second pressure plate is arranged on the connecting rod and is symmetrically arranged with the first pressure plate.

[0010] Preferably, the mating structure includes an L-shaped adjusting rod, a trapezoidal mounting plate, and an angle adjusting structure. The L-shaped adjusting rod is arranged on the second top pressure plate, and the trapezoidal mounting plate and the angle adjusting structure are both arranged on the L-shaped adjusting rod. The limiting frame is rotatably arranged on the trapezoidal mounting plate.

[0011] Preferably, the L-shaped adjusting rod has a slot on the side facing the limiting frame, a lead screw is rotatably arranged inside the slot, a rectangular block is arranged on the lead screw, the rectangular block is located inside the slot, the rectangular block is connected to the trapezoidal mounting plate, and a hand disc is arranged at one end of the lead screw that passes through the slot.

[0012] Preferably, the angle adjustment structure includes a rectangular frame and a concave frame. The concave frame is arranged on the L-shaped adjustment rod. One side of the rectangular frame passes through the groove formed by the L-shaped adjustment rod and the concave frame, and the other side of the rectangular frame is rotatably connected to the limiting frame.

[0013] Preferably, the concave frame has a rectangular through hole on the side facing away from the limiting frame, and a fixing bolt is screwed onto one side of the rectangular frame that passes through the concave frame, and the fixing bolt passes through the rectangular through hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model utilizes a designed fixed platform, which consists of a base, a pushing structure, and a driving structure. Therefore, when welding the bends and gaps of a square box-shaped sheet metal, the square box-shaped sheet metal can be directly inserted into the driving structure. Then, the pushing structure is controlled to abut against the square box-shaped sheet metal. At this point, the first pressure plate on the pushing structure and the second pressure plate on the driving structure fix the square box-shaped sheet metal. The driving structure can then directly rotate the square box-shaped sheet metal, allowing for rapid adjustment of the bends and gaps. This enables the laser welding machine to quickly complete the welding of four sets of bends and gaps on the square box-shaped sheet metal, solving the technical problem that current laser welding machines are not suitable for quickly welding multiple sets of bends and gaps on square box-shaped sheet metal. Therefore, this utility model has the advantage of rapidly welding multiple sets of bends and gaps on square box-shaped sheet metal.

[0016] 2. This utility model also includes four sets of limiting structures arranged around the second top pressure plate of the drive structure. These four sets of limiting structures are distributed in a cross shape, with each set corresponding to a set of bent edges of the square box-shaped sheet metal. The limiting structures are composed of a mating structure and a limiting frame, with the limiting frame being U-shaped. Therefore, when the second top pressure plate secures the square box-shaped sheet metal, the limiting frame can be adjusted according to the length and inclination angle of the bent edges under the action of the mating structure. This allows the four U-shaped limiting frames to engage with the four sets of bent edges of the square box-shaped sheet metal, thereby achieving the desired alignment of the bent edges. The bidirectional limiting mechanism serves two purposes: firstly, it enhances the stability of the square box-shaped sheet metal being pressed and fixed by the second and first pressure plates, preventing displacement during rotation and facilitating precise adjustment of the bending edge gaps. This ensures optimal welding results during bending edge gap adjustment. Secondly, it limits the bending edges of the square box-shaped sheet metal, preventing misalignment during rotation and ensuring welding effectiveness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixed platform structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting structure of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the L-shaped adjusting rod and trapezoidal mounting plate of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Laser welding machine; 2. Fixed platform; 3. Base; 4. Pushing structure; 401. First mounting plate; 402. First pressure plate; 403. Electro-hydraulic push rod; 5. Drive structure; 501. Second mounting plate; 502. Motor; 503. Connecting rod; 504. Second pressure plate; 6. Limiting structure; 7. Matching structure; 8. Limiting frame; 9. L-shaped adjusting rod; 901. Groove; 902. Lead screw; 903. Rectangular block; 904. Hand disc; 10. Trapezoidal mounting plate; 11. Angle adjustment structure; 1101. Rectangular frame; 1102. Fixing bolt; 1103. Concave frame; 1104. Rectangular through hole. Detailed Implementation

[0023] like Figures 1 to 4As shown, this utility model relates to a laser welding device for sheet metal processing, including a laser welding machine 1. A fixed platform 2 is arranged on the top of the laser welding machine 1. The fixed platform 2 includes a base 3, a pushing structure 4, and a driving structure 5. The base 3 is arranged on the laser welding machine 1, the pushing structure 4 is arranged on the rear side of the top of the base 3, and the driving structure 5 is arranged on the front side of the top of the base 3. The pushing structure 4 and the driving structure 5 are symmetrically arranged. The pushing structure 4 includes a first mounting plate 401, a first pressure plate 402, and an electro-hydraulic push rod 403. Mounting plate 401 is arranged on base 3, electro-hydraulic push rod 403 is arranged on first mounting plate 401, and first top pressure plate 402 is rotatably arranged on piston end of electro-hydraulic push rod 403; drive structure 5 includes second mounting plate 501, motor 502, connecting rod 503 and second top pressure plate 504, second mounting plate 501 is arranged on base 3, second mounting plate 501 is symmetrically arranged with first mounting plate 401, motor 502 is arranged on second mounting plate 501, and connecting rod 503 is arranged on the piston end of motor 502. On the moving shaft, the second top pressure plate 504 is arranged on the connecting rod 503, and the second top pressure plate 504 is symmetrically arranged with the first top pressure plate 402. When welding the bend edge gap of the square box-shaped sheet metal, the square box-shaped sheet metal can be directly inserted into the connecting rod 503 of the drive structure 5, and then the electric hydraulic push rod 403 of the push structure 4 is controlled to drive the first top pressure plate 402 to move. Then, the second top pressure plate 504 on the connecting rod 503 and the first top pressure plate 402 on the electric hydraulic push rod 403 abut against the square box-shaped sheet metal. The first pressure plate 402 and the second pressure plate 504 fix the square box-shaped sheet metal. Then, the laser welding machine 1 can weld the bends of the square box-shaped sheet metal. The motor 502 can drive the connecting rod 503 and the second pressure plate 504 to rotate. The second pressure plate 504, in conjunction with the first pressure plate 402, drives the square box-shaped sheet metal to rotate, which can quickly adjust the bends of the square box-shaped sheet metal so that the laser welding machine 1 can quickly complete the welding of the four sets of bends of the square box-shaped sheet metal.

[0024] In this embodiment of the invention, four sets of limiting structures 6 are arranged on the driving structure 5, and the four sets of limiting structures 6 are distributed in a cross shape. Each limiting structure 6 includes a mating structure 7 and a limiting frame 8. The mating structure 7 is arranged on the driving structure 5, and the limiting frame 8 is arranged on the mating structure 7. The limiting frame 8 has a U-shaped design. When the second top pressure plate 504 fixes the square box-shaped sheet metal, under the action of the mating structure 7, the limiting frame 8 can be adjusted according to the length and tilt angle of the square box-shaped bending edge. Then, the four sets of U-shaped limiting frames 8 respectively engage with the four bending edges of the square box-shaped sheet metal, thereby achieving folding. The bidirectional limiting of the bent edge serves two purposes: firstly, it improves the stability of the square box-shaped sheet metal being pressed and fixed by the second top pressure plate 504 in conjunction with the first top pressure plate 402, preventing displacement during the rotation of the square box-shaped sheet metal. This facilitates precise rotational adjustment of the bent edge gap of the square box-shaped sheet metal, thereby ensuring the welding effect of the rotational adjustment of the bent edge gap. Secondly, it limits the bending edge of the square box-shaped sheet metal, preventing misalignment of the bent edge during rotation, which could affect the welding effect, further ensuring the welding effect of the rotational adjustment of the bent edge gap of the square box-shaped sheet metal.

[0025] Specifically, the cooperating structure 7 includes an L-shaped adjusting rod 9, a trapezoidal mounting plate 10, and an angle adjusting structure 11. The L-shaped adjusting rod 9 is arranged on the second top pressure plate 504. The trapezoidal mounting plate 10 and the angle adjusting structure 11 are both arranged on the L-shaped adjusting rod 9. The limiting frame 8 is rotatably arranged on the trapezoidal mounting plate 10. The L-shaped adjusting rod 9 can drive the trapezoidal mounting plate 10 to move, that is, to realize the displacement adjustment of the limiting frame 8. Thus, the position of the limiting frame 8 can be adjusted according to the length of the bent edge of the square box-shaped sheet metal. The angle adjusting structure 11 can realize the adjustment of the angle of the limiting frame 8.

[0026] Furthermore, the L-shaped adjusting rod 9 has a slot 901 on the side facing the limiting frame 8. A lead screw 902 is rotatably arranged inside the slot 901. A rectangular block 903 is arranged on the lead screw 902. The rectangular block 903 is located inside the slot 901 and is connected to the trapezoidal mounting plate 10. A handwheel 904 is arranged at one end of the lead screw 902 that passes through the slot 901. By turning the lead screw 902 through the handwheel 904, the rectangular block 903 on the lead screw 902 can drive the trapezoidal mounting plate 10 to move.

[0027] Furthermore, the angle adjustment structure 11 includes a rectangular frame 1101 and a concave frame 1103. The concave frame 1103 is arranged on the L-shaped adjusting rod 9. One side of the rectangular frame 1101 passes through the groove formed by the L-shaped adjusting rod 9 and the concave frame 1103, and the other side of the rectangular frame 1101 is rotatably connected to the limiting frame 8. A rectangular through hole 1104 is opened on the side of the concave frame 1103 facing away from the limiting frame 8. A fixing bolt 1102 is screwed onto the side of the rectangular frame 1101 that passes through the concave frame 1103, and the fixing bolt 1102 passes through the rectangular through hole 1104. When it is necessary to adjust the angle of the limiting frame 8, The fixing bolt 1102 can be loosened, and then the limiting frame 8 can rotate on the trapezoidal mounting plate 10, thereby adjusting the angle of the limiting frame 8. During the rotation of the limiting frame 8, one side of the rectangular frame 1101 will slide inside the concave frame 1103. After the angle of the limiting frame 8 is adjusted, the fixing bolt 1102 can be tightened so that the fixing bolt 1102 presses against the concave frame 1103, thereby fixing the rectangular frame 1101 and preventing it from sliding inside the concave frame 1103, thus fixing the limiting frame 8 and preventing it from rotating, thereby completing the angle adjustment of the limiting frame 8.

[0028] Working principle: This embodiment provides a laser welding device for sheet metal processing. First, when welding the bend edge gap of a square box-shaped sheet metal, the square box-shaped sheet metal can be directly inserted into the connecting rod 503 of the drive structure 5. Then, the electric hydraulic push rod 403 of the push structure 4 is controlled to drive the first pressure plate 402 to move. Then, the second pressure plate 504 on the connecting rod 503 and the first pressure plate 402 on the electric hydraulic push rod 403 abut against the square box-shaped sheet metal. At this time, the first pressure plate 402 and... The second pressure plate 504 fixes the square box-shaped sheet metal, and then the laser welding machine 1 can weld the bends of the square box-shaped sheet metal. Then, the motor 502 can drive the connecting rod 503 and the second pressure plate 504 to rotate. The second pressure plate 504, in conjunction with the first pressure plate 402, drives the square box-shaped sheet metal to rotate, which can quickly adjust the bends of the square box-shaped sheet metal so that the laser welding machine 1 can quickly complete the welding of the four sets of bends of the square box-shaped sheet metal.

[0029] Secondly, when the second top pressure plate 504 is fixing the square box-shaped sheet metal, under the action of the cooperating structure 7, the limiting frame 8 can be adjusted according to the length and tilt angle of the square box-shaped bent edge. Then, the four sets of U-shaped limiting frames 8 respectively hook the four sets of bent edges of the square box-shaped sheet metal, thereby achieving bidirectional limiting of the bent edges. Firstly, it can improve the stability of the second top pressure plate 504 cooperating with the first top pressure plate 402 to press and fix the square box-shaped sheet metal, so that the square box-shaped sheet metal will not be displaced during rotation. This facilitates precise rotation adjustment of the gap of the bent edge of the square box-shaped sheet metal, thereby ensuring the welding effect of the rotation adjustment of the gap of the bent edge of the square box-shaped sheet metal. Secondly, it can limit the bent edge of the square box-shaped sheet metal, avoiding the misalignment of the bent edge during the rotation of the square box-shaped sheet metal, which would affect the welding effect. This further ensures the welding effect of the rotation adjustment of the gap of the bent edge of the square box-shaped sheet metal.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A laser welding device for sheet metal processing, characterized in that, The laser welding machine (1) is provided with a fixed platform (2) on its top. The fixed platform (2) includes a base (3), a pushing structure (4) and a driving structure (5). The base (3) is arranged on the laser welding machine (1). The pushing structure (4) is arranged on the rear side of the top of the base (3). The driving structure (5) is arranged on the front side of the top of the base (3). The pushing structure (4) and the driving structure (5) are arranged symmetrically. The drive structure (5) is provided with four sets of limiting structures (6), which are arranged in a cross shape. Each limiting structure (6) includes a mating structure (7) and a limiting frame (8). The mating structure (7) is arranged on the drive structure (5), and the limiting frame (8) is arranged on the mating structure (7). The limiting frame (8) is U-shaped.

2. The laser welding device for sheet metal processing according to claim 1, characterized in that, The push structure (4) includes a first mounting plate (401), a first pressure plate (402), and an electro-hydraulic push rod (403). The first mounting plate (401) is arranged on the base (3), the electro-hydraulic push rod (403) is arranged on the first mounting plate (401), and the first pressure plate (402) is rotatably arranged on the piston end of the electro-hydraulic push rod (403).

3. The laser welding device for sheet metal processing according to claim 2, characterized in that, The drive structure (5) includes a second mounting plate (501), a motor (502), a connecting rod (503), and a second top pressure plate (504). The second mounting plate (501) is arranged on the base (3) and is symmetrically arranged with the first mounting plate (401). The motor (502) is arranged on the second mounting plate (501). The connecting rod (503) is arranged on the rotating shaft at the output end of the motor (502). The second top pressure plate (504) is arranged on the connecting rod (503) and is symmetrically arranged with the first top pressure plate (402).

4. The laser welding apparatus for sheet metal processing according to claim 3, characterized in that, The mating structure (7) includes an L-shaped adjusting rod (9), a trapezoidal mounting plate (10), and an angle adjusting structure (11). The L-shaped adjusting rod (9) is arranged on the second top pressure plate (504). The trapezoidal mounting plate (10) and the angle adjusting structure (11) are both arranged on the L-shaped adjusting rod (9). The limiting frame (8) is rotatably arranged on the trapezoidal mounting plate (10).

5. The laser welding apparatus for sheet metal processing according to claim 4, characterized in that, The L-shaped adjusting rod (9) has a slot (901) facing the limiting frame (8). A lead screw (902) is rotatably arranged inside the slot (901). A rectangular block (903) is arranged on the lead screw (902). The rectangular block (903) is located inside the slot (901). The rectangular block (903) is connected to the trapezoidal mounting plate (10). A hand plate (904) is arranged at one end of the lead screw (902) that passes through the slot (901).

6. The laser welding apparatus for sheet metal processing according to claim 5, characterized in that, The angle adjustment structure (11) includes a rectangular frame (1101) and a concave frame (1103). The concave frame (1103) is arranged on the L-shaped adjustment rod (9). One side of the rectangular frame (1101) passes through the groove formed by the L-shaped adjustment rod (9) and the concave frame (1103). The other side of the rectangular frame (1101) is rotatably connected to the limiting frame (8).

7. The laser welding apparatus for sheet metal processing according to claim 6, characterized in that, The concave frame (1103) has a rectangular through hole (1104) on the side facing away from the limiting frame (8). A fixing bolt (1102) is screwed onto one side of the rectangular frame (1101) that passes through the concave frame (1103), and the fixing bolt (1102) passes through the rectangular through hole (1104).

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