Automatic welding device for vehicle frame

Abstract

The utility model discloses an automatic frame welding device which comprises a bottom plate and is characterized in that a mechanical arm is arranged at one end of the upper side of the bottom plate, and the mechanical arm is connected with a welding head; the other end of the upper side of the bottom plate is fixedly connected with symmetrical supporting plates, and the supporting plates are connected with a frame supporting and moving assembly; the frame supporting and moving assembly comprises a connecting frame, the connecting frame is fixedly connected with the upper sides of the symmetrical supporting plates, a sliding way is formed in one side of the connecting frame, a sliding block is arranged in the sliding way, one side of the sliding block is fixedly connected with one end of an extending arm, the extending arm is L-shaped, and the other end of the extending arm is connected with a frame supporting plate. The utility model relates to the technical field of frame welding, in particular to an automatic frame welding device, which realizes the automatic adjustment of the position and angle of a frame, reduces the manual intervention and improves the automation degree in the welding process.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame welding technology, and more specifically, to an automatic vehicle frame welding device. Background Technology

[0002] In the welding of existing electric tricycle frames, the welding process typically requires manual adjustment of the frame's position and angle. This is not only inefficient, but also prone to inconsistent welding quality due to variations in manual operation. Furthermore, traditional welding equipment often lacks flexibility and struggles to adapt to frames of different shapes and sizes, limiting production efficiency and welding precision.

[0003] A search revealed an electric vehicle subframe welding bracket with application number CN201820539037.5, belonging to the field of electric vehicle welding equipment. The bracket includes: a workbench; a support mounted on the workbench for fixing a curved beam; and a clamping swing arm disposed opposite to the support and rotatably connected at one end to the workbench. The clamping swing arm cooperates with the support to clamp the curved beam and presses the bottom connector onto the bottom of the curved beam. In use, the curved beam is fixed to the support, and the bottom welding groove of the bottom connector is aligned with the welding position at the bottom of the curved beam. Then, the clamping swing arm is rotated, causing the free end of the clamping swing arm to press the bottom connector against the bottom of the curved beam fixed to the support, thus fixing the bottom connector to the bottom of the curved beam. This eliminates the need for manual handling of the bottom connector, simplifying the welding operation. While this application can limit and weld the bracket, it cannot adjust the position and angle of the frame, nor can it adjust the welding angle; this is a deficiency of the prior art. Utility Model Content

[0004] This invention provides an automatic frame welding device that enables automatic adjustment of the frame position and angle, reduces manual intervention, and improves the automation level of the welding process.

[0005] An automatic vehicle frame welding device includes a base plate, characterized in that: a robotic arm is provided at one upper end of the base plate, and the robotic arm is connected to a welding head;

[0006] The other end of the base plate is fixedly connected to a symmetrical support plate, which is connected to the frame support moving assembly.

[0007] The frame support moving assembly includes a connecting frame, which is fixedly connected to the upper side of the symmetrical support plate. A slide rail is provided on one side of the connecting frame, and a slider is provided in the slide rail. One side of the slider is fixedly connected to one end of an extension arm. The extension arm is L-shaped, and the other end of the extension arm is connected to the frame support plate. A set of evenly arranged mounting holes are provided on the frame support plate.

[0008] The extendable arm is connected to the drive assembly.

[0009] As a further limitation of this technical solution, the drive assembly includes a rotating wheel, a sliding column is fixed eccentrically on one side of the rotating wheel, the sliding column is disposed in the slide rail of the vertical slide rail, the sliding column and the slide rail of the vertical slide rail are matched with each other, the output shaft of the first motor is fixed at the center of the rotating wheel, the first motor fixes the connecting frame through a motor bracket, and the vertical slide rail fixes the extension arm.

[0010] As a further limitation of this technical solution, the frame support plate is connected to a flipping assembly, the flipping assembly includes a second bevel gear, the central shaft of the second bevel gear is fixedly connected to the center of one end of the frame support plate, and the central shaft of the second bevel gear is rotatably connected to the extension arm.

[0011] As a further limitation of this technical solution, the second bevel gear meshes with the first bevel gear, the center of the first bevel gear is fixedly connected to a rotating block, the rotating block is a circular block, the rotating block is rotatably connected to a limiting ring, the limiting ring is fixedly connected to the extending arm, a cross-shaped rod passes through the center of the rotating block and the first bevel gear, one end of the cross-shaped rod is rotatably connected to one end of the connecting frame, the other end of the cross-shaped rod is fixedly connected to the output shaft of the second motor, and the second motor is fixedly connected to the other end of the connecting frame.

[0012] As a further limitation of this technical solution, a controller is also provided, which controls the swinging and rotation of the robotic arm, and also controls the first motor and the second motor. The controller is electrically connected to a power source, and the robotic arm is electrically connected to a power source.

[0013] As a further limitation of this technical solution, the frame support plate is a steel plate.

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

[0015] The operation of the robotic arm, the first motor, and the second motor is centrally managed by the controller, which simplifies the operation process. The output shaft of the first motor can rotate the wheel, which in turn drives the slide column to rotate circumferentially within the slide rail of the vertical slide rail. The vertical slide rail drives the extended arm, which is fixed to it, to move back and forth. The output shaft of the second motor can rotate the cross rod, which in turn drives the rotating block and bevel gear one to rotate. Bevel gear one can drive bevel gear two, which meshes with it, to rotate. Bevel gear two can drive the frame support plate to rotate, thus realizing the automatic adjustment of the frame position and angle, reducing manual intervention, and improving the automation level of the welding process.

[0016] The evenly distributed mounting holes on the frame support plate, along with bolts, nuts, or straps, can accommodate frames of different shapes and sizes, improving the equipment's versatility.

[0017] The precise control of the robotic arm and the multi-angle adjustment capability of the frame support plate ensure that the welding head can be accurately aligned with the welding position, thereby improving welding accuracy and quality. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0019] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0020] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0021] Figure 3 The three-dimensional representation of this utility model Figure 3 ;

[0022] Figure 4 The three-dimensional representation of this utility model Figure 4 ;

[0023] Figure 5 The three-dimensional representation of this utility model Figure 5 ;

[0024] Figure 6 This is a perspective view of the rotating block of this utility model.

[0025] In the diagram: 1. Frame support plate; 101. Mounting hole; 2. Welding head; 3. Robotic arm; 4. Base plate; 5. Support plate; 6. Second motor; 7. Connecting frame; 8. Slider; 9. Motor bracket; 10. First motor; 11. Vertical slide rail; 12. Rotary wheel; 13. Sliding column; 14. Slide track; 16. Guide rod; 17. Extending arm; 18. Limiting ring; 19. Rotating block; 20. Cross-shaped rod; 21. Bevel gear one; 22. Bevel gear two. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0027] An automatic welding device for vehicle frames includes a base plate 4, with a robotic arm 3 mounted on one upper end of the base plate 4, and the robotic arm 3 connected to a welding head 2.

[0028] The other end of the base plate 4 is fixedly connected to a symmetrical support plate 5, and the support plate 5 is connected to the frame support moving assembly.

[0029] The frame support moving assembly includes a connecting frame 7, which is fixedly connected to the upper side of the symmetrical support plate 5. A slide rail 14 is provided on one side of the connecting frame 7, and a slider 8 is provided in the slide rail 14. One end of the extension arm 17 is fixedly connected to one side of the slider 8. The extension arm 17 is L-shaped, and the other end of the extension arm 17 is connected to the frame support plate 1. A set of evenly arranged mounting holes 101 are provided on the frame support plate 1.

[0030] The extendable arm 17 is connected to the drive assembly.

[0031] In this embodiment, a guide rod 16 is provided in the slide rail 14, and the connecting frame 7 is fixed at both ends of the guide rod 16. The drive assembly can control the extension arm to move back and forth. The extension arm 17 drives the slider 8 to move back and forth along the guide rod 16 in the slide rail 14, thereby driving the frame support plate 1 to move back and forth. The mounting holes 101 on the frame support plate 1 can limit the frame by bolts, nuts or straps, etc., to fix the frame.

[0032] The drive assembly includes a rotating wheel 12, with a sliding column 13 fixed eccentrically on one side of the rotating wheel 12. The sliding column 13 is disposed in the slide rail 11, and the sliding column 13 and the slide rail 11 are matched with each other. The output shaft of the first motor 10 is fixed at the center of the rotating wheel 12. The first motor 10 is fixed to the connecting frame 7 through the motor bracket 9, and the vertical slide rail 11 is fixed to the extending arm 17.

[0033] In this embodiment, the output shaft of the first motor 10 rotates to drive the rotating wheel 12 to rotate, and the rotating wheel 12 drives the sliding column 13 to rotate circumferentially within the slide rail of the vertical slide rail 11. The vertical slide rail 11 drives the extended arm 17 fixed thereto to move back and forth.

[0034] The frame support plate 1 is connected to a flipping assembly, which includes a second bevel gear 22. The central axis of the second bevel gear 22 is fixedly connected to the center of one end of the frame support plate 1, and the central axis of the second bevel gear 22 is rotatably connected to the extension arm 17.

[0035] The second bevel gear 22 meshes with the first bevel gear 21. The center of the first bevel gear 21 is fixedly connected to a rotating block 19, which is a round block. The rotating block 19 is rotatably connected to a limiting ring 18, which is fixedly connected to the extending arm 17. A cross-shaped rod 20 passes through the center of the rotating block 19 and the first bevel gear 21. One end of the cross-shaped rod 20 is rotatably connected to one end of the connecting frame 7, and the other end of the cross-shaped rod 20 is fixedly connected to the output shaft of the second motor 6. The second motor 6 is fixedly connected to the other end of the connecting frame 7.

[0036] In this embodiment, the rotation of the output shaft of the second motor 6 can drive the cross-shaped rod 20 to rotate, the cross-shaped rod 20 can drive the rotating block 19 and the first bevel gear 21 to rotate, the first bevel gear 21 can drive the second bevel gear 22 meshing with it to rotate, and the second bevel gear 22 can drive the frame support plate 1 to rotate, thereby realizing the angle adjustment of the fixed frame.

[0037] A controller is also provided, which controls the swinging and rotation of the robotic arm 3. The controller also controls the first motor 10 and the second motor 6. The controller is electrically connected to a power source, and the robotic arm 3 is electrically connected to a power source.

[0038] In this embodiment, the controller can control the robotic arm 3 to rotate and swing, thereby adjusting the angle and position of the welding head 2 to achieve welding at the correct position. The controller can also control the start and stop of the first motor 10 and the second motor 6.

[0039] The frame support plate 1 is a steel plate.

[0040] In use, the frame is fixed to the frame support plate 1 through the mounting hole 101. The controller controls the rotation and swing of the robotic arm 3 to adjust the angle position of the welding head 2. After adjustment, the controller controls the motor 10 to move the frame support plate 1 and adjust the welding position during the welding process. The controller controls the motor 2 to flip the frame support plate 1, thereby adjusting the circumferential angle of the frame and enabling welding at different angle positions of the frame.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic vehicle frame welding device, comprising a base plate (4), characterized in that: A robotic arm (3) is provided on one end of the upper side of the base plate (4), and the robotic arm (3) is connected to the welding head (2); The other end of the base plate (4) is fixedly connected to a symmetrical support plate (5), and the support plate (5) is connected to the frame support moving assembly; The frame support moving assembly includes a connecting frame (7), which is fixedly connected to the upper side of the symmetrical support plate (5). A slide rail (14) is provided on one side of the connecting frame (7), and a slider (8) is provided in the slide rail (14). One side of the slider (8) is fixedly connected to one end of the extension arm (17), which is L-shaped. The other end of the extension arm (17) is connected to the frame support plate (1), and a set of evenly arranged mounting holes (101) are provided on the frame support plate (1). The extendable arm (17) is connected to the drive assembly.

2. The automatic vehicle frame welding device according to claim 1, characterized in that: The drive assembly includes a wheel (12), and a sliding column (13) is fixed eccentrically on one side of the wheel (12). The sliding column (13) is arranged in the slide of the vertical slide rail (11). The sliding column (13) and the slide of the vertical slide rail (11) are matched with each other. The output shaft of the first motor (10) is fixed at the center of the wheel (12). The first motor (10) fixes the connecting frame (7) through the motor bracket (9). The vertical slide rail (11) fixes the extension arm (17).

3. The automatic vehicle frame welding device according to claim 2, characterized in that: The frame support plate (1) is connected to a flipping assembly, which includes a second bevel gear (22). The central shaft of the second bevel gear (22) is fixedly connected to the center of one end of the frame support plate (1), and the central shaft of the second bevel gear (22) is rotatably connected to the extension arm (17).

4. The automatic vehicle frame welding device according to claim 3, characterized in that: The second bevel gear (22) meshes with the first bevel gear (21). The center of the first bevel gear (21) is fixedly connected to a rotating block (19). The rotating block (19) is a round block. The rotating block (19) is rotatably connected to a limiting ring (18). The limiting ring (18) is fixedly connected to the extension arm (17). A cross-shaped rod (20) passes through the center of the rotating block (19) and the first bevel gear (21). One end of the cross-shaped rod (20) is rotatably connected to one end of the connecting frame (7). The other end of the cross-shaped rod (20) is fixedly connected to the output shaft of the second motor (6). The second motor (6) is fixedly connected to the other end of the connecting frame (7).

5. The automatic chassis welding device according to claim 4, characterized in that: A controller is also provided, which controls the swinging and rotation of the robotic arm (3). The controller also controls the first motor (10) and the second motor (6). The controller is electrically connected to the power supply, and the robotic arm (3) is electrically connected to the power supply.

6. The automatic chassis welding device according to claim 5, characterized in that: The frame support plate (1) is a steel plate.

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