A new energy automobile battery box welding clamp

Abstract

The present application belongs to the technical field of battery box production equipment, and particularly relates to a new energy automobile battery box welding clamp, which comprises a bottom plate, a support frame for supporting the battery box is arranged above the bottom plate, clamping devices for clamping and fixing the battery box are arranged around the support frame; a centering device is arranged on the support frame, the centering device can synchronously drive four groups of the clamping devices to slide along the bottom plate; each of the four groups of the clamping devices comprises a sliding frame sliding along the bottom plate, and a plurality of clamping structures are arranged on the sliding frame; the present application effectively solves the problem of troublesome operation of the existing new energy automobile battery box welding clamp.

Description

Technical Field

[0001] This invention belongs to the technical field of battery box production equipment, specifically relating to a welding fixture for a new energy vehicle battery box. Background Technology

[0002] Welding fixtures for new energy vehicle battery boxes are core tooling equipment for ensuring the safety and reliability of battery systems. Through functions such as precise positioning, efficient fixing, and deformation control, they ensure that the welded box meets requirements for high strength, high sealing, and lightweight, thereby directly affecting the safety (such as collision protection), range (lightweight), and service life (leakage prevention and corrosion prevention) of new energy vehicles.

[0003] Existing welding fixtures are cumbersome to operate, requiring multiple adjustments and clamping fixations. For example, the invention patent with application number CN202411914123.6 discloses a positioner welding fixture for new energy vehicle battery boxes, which requires multiple adjustments and clamping operations during use, wasting time on alignment and clamping adjustments. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a welding fixture for new energy vehicle battery boxes, which effectively solves the problem of cumbersome operation of existing welding fixtures for new energy vehicle battery boxes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a welding fixture for a new energy vehicle battery box, comprising a base plate, a support frame for supporting the battery box on the top of the base plate, and clamping devices for clamping and fixing the battery box on all four sides of the support frame; a centering device is provided on the support frame, which can simultaneously drive the four sets of clamping devices to slide along the base plate; each of the four sets of clamping devices includes a sliding frame that slides along the base plate, and the sliding frame is provided with multiple clamping structures.

[0006] Furthermore, each of the clamping structures includes a clamping frame fixedly connected to the sliding frame, and a centering block for centering the battery box is slidably connected to the clamping frame; a rotating frame is rotatably connected to the clamping frame, and a clamping assembly for clamping the side of the battery box is provided on the rotating frame; a pressing block that cooperates with the support frame to fix the bottom of the battery box is also slidably connected to the rotating frame, and the pressing block moves with the movement of the clamping assembly.

[0007] Furthermore, the centering device includes a cross crank rotatably connected to the support frame, and four connecting rods rotatably connected to the cross crank; each of the four sliding frames is slidably connected to an adjusting block, and the other end of each of the four connecting rods is rotatably connected to a corresponding adjusting block; a centering telescopic rod is fixedly connected to the base plate, and the telescopic end of the centering telescopic rod is fixedly connected to one of the sliding frames.

[0008] Furthermore, the adjusting block is fixedly connected to a slide rod that is slidably connected to the sliding frame, and the adjusting block is also rotatably connected to an adjusting screw that is screwed to the sliding frame, with a knob fixedly connected to the adjusting screw.

[0009] Furthermore, a synchronous telescopic rod is fixedly connected to the sliding frame, and a synchronous plate is fixedly connected to the telescopic end of the synchronous telescopic rod; a plurality of guide rods are fixedly connected to the synchronous plate and are slidably connected to the corresponding clamping frame, and the plurality of guide rods are fixedly connected to the corresponding centering block.

[0010] Furthermore, a guide frame is fixedly connected to the rotating frame, and a drive block is slidably connected to the guide frame; a reverse component that drives the clamping component to move is connected to the drive block, and a synchronization component that drives the pressing block to slide along the rotating frame is also connected to the drive block.

[0011] Furthermore, the clamping assembly includes a fixed block that is fixedly connected to the clamping frame, and a movable block that cooperates with the fixed block to clamp the side of the battery box on the rotating frame.

[0012] Furthermore, the reversing assembly includes a synchronous crank rotatably connected to the rotating frame, with the middle part of the synchronous crank rotatably connected to the rotating frame; one end of the synchronous crank is rotatably connected to a driving rod, and the other end of the driving rod is rotatably connected to a drive block; the other end of the synchronous crank is rotatably connected to a driven rod, and the other end of the driven rod is rotatably connected to a movable block.

[0013] Furthermore, the synchronization component includes an L-shaped rod rotatably connected to the guide frame, an input rod rotatably connected to one end of the L-shaped rod, and a drive block rotatably connected to the other end of the input rod; an output rod rotatably connected to the other end of the L-shaped rod, and a pressure rod rotatably connected to the other end of the output rod slidably connected to the rotating frame, the pressure rod being fixedly connected to the pressure block.

[0014] Furthermore, a geared motor is fixedly connected to the clamping frame, and a traction crank is fixedly connected to the output end of the geared motor. A drive rod is rotatably connected to the traction crank, and the other end of the drive rod is rotatably connected to the drive block. The clamping frame is provided with a horizontal slide groove corresponding to the drive block, and a fan-shaped slide groove is connected to the horizontal slide groove. A roller that cooperates with the horizontal slide groove and the fan-shaped slide groove is rotatably connected to the drive block.

[0015] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0016] In use, the present invention uses a centralizing device to simultaneously drive the four sets of clamping devices to slide along the base plate, so that the four sets of clamping devices can simultaneously clamp and fix the sides and bottom of the battery box, thereby improving the convenience of clamping and fixing the battery box. Moreover, by using the centralizing device to make the four sets of clamping devices slide along the base plate, the four sets of clamping devices can fix battery boxes of different sizes, thereby improving the adaptability of the present invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the present invention in conjunction with the battery housing;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention;

[0019] Figure 3 This is a schematic diagram showing the cooperative state of the clamping device, centering device, and other structures in this invention;

[0020] Figure 4 This is a first isometric view of the clamping device in this invention;

[0021] Figure 5 This is a second isometric view of the clamping device in this invention;

[0022] Figure 6 This is a schematic diagram showing the coordinated state of the central telescopic rod, synchronization plate, guide rod, central block, and other structures in this invention.

[0023] Figure 7 This is a first isometric view of the clamping structure in this invention;

[0024] Figure 8 This is a second isometric view of the clamping structure in this invention;

[0025] Figure 9 This is a schematic diagram showing the cooperative state of the rotating frame, movable block, reversing component, synchronizing component, and pressing block in this invention.

[0026] In the diagram: 1. Base plate, 2. Clamping device, 3. Battery box, 4. Centered telescopic rod, 5. Support frame, 6. Connecting rod, 7. Cross crank, 8. Clamping frame, 9. Sliding frame, 10. Adjusting block, 11. Centering block, 12. Pressing block, 13. Movable block, 14. Fixed block, 15. Gear motor, 16. Synchronous plate, 17. Synchronous telescopic rod, 18. Slide rod, 19. Adjusting screw, 20. Guide rod, 21. Pressing rod, 22. Rotating frame, 23. Guide frame, 24. Traction crank, 25. Drive rod, 26. Fan-shaped slide, 27. Drive block, 28. Input rod, 29. L-shaped rod, 30. Output rod, 31. Horizontal slide, 32. Synchronous crank, 33. Driving rod, 34. Driven rod. Detailed Implementation

[0027] A welding fixture for battery boxes of new energy vehicles, such as Figure 1-9As shown, the device includes a base plate 1, a support frame 5 supporting the battery box 3 on top of the base plate 1, and clamping devices 2 for clamping and fixing the battery box 3 on all four sides of the support frame 5. The support frame 5 has a centering device, which can simultaneously drive the four sets of clamping devices 2 to slide along the base plate 1, so that the four sets of clamping devices 2 can simultaneously clamp and fix the sides and bottom of the battery box 3, thereby improving the convenience of clamping and fixing the battery box 3. Each of the four sets of clamping devices 2 includes a sliding frame 9 that slides along the base plate 1, and the sliding frame 9 has multiple clamping structures. The multiple clamping structures clamp and fix the sides of the battery box 3, thereby improving the stability of the battery box 3.

[0028] Furthermore, such as Figure 7 and Figure 8 As shown, each of the clamping structures includes a clamping frame 8 fixedly connected to the sliding frame 9, and a centering block 11 for centering the battery box 3 is slidably connected to the clamping frame 8; a rotating frame 22 is rotatably connected to the clamping frame 8, and a clamping component for clamping the side of the battery box 3 is provided on the rotating frame 22; a pressing block 12 that cooperates with the support frame 5 to fix the bottom of the battery box 3 is also slidably connected to the rotating frame 22, and the pressing block 12 moves with the movement of the clamping component.

[0029] When in use, the centering block 11 moves synchronously with the sliding frame 9 and the clamping frame 8, and the centering block 11 clamps the battery box 3 in a centered position. The rotating frame 22 rotates along the clamping frame 8 to align the clamping components with the side of the battery box 3, clamping the side of the battery box 3. The bottom of the battery box 3 is fixed by the cooperation of the pressing block 12 and the support frame 5. After the pressing block 12 has fixed the bottom of the battery box 3, the centering block 11 slides along the clamping frame 8, moving away from the battery box 3, so that the welding equipment can weld the bottom and side of the battery box 3. Through the arrangement of the centering block 11, the rotating frame 22, the clamping components, the pressing block 12, etc., the clamping structure first centers the battery box 3 and then clamps and fixes it, realizing multi-directional fixation of the side and bottom of the battery box 3, thereby improving the stability of the battery box 3.

[0030] Furthermore, such as Figure 3 and Figure 5As shown, the centering device includes a cross crank 7 rotatably connected to the support frame 5, and four connecting rods 6 rotatably connected to the cross crank 7; adjusting blocks 10 are slidably connected to each of the four sliding frames 9, and the other ends of the four connecting rods 6 are rotatably connected to the corresponding adjusting blocks 10; a centering telescopic rod 4 is fixedly connected to the base plate 1, and the telescopic end of the centering telescopic rod 4 is fixedly connected to one of the sliding frames 9; a sliding rod 18 slidably connected to the sliding frame 9 is fixedly connected to the adjusting block 10, and an adjusting screw 19 screwed to the sliding frame 9 is also rotatably connected to the adjusting block 10, and a knob is fixedly connected to the adjusting screw 19.

[0031] When using the centering device for the first time, the centering telescopic rod 4 is activated, which drives one of the sliding frames 9 to slide along the base plate 1. The sliding frame 9 drives the cross crank 7 to rotate through one of the connecting rods 6, and the cross crank 7 drives the remaining sliding frames 9 to slide along the base plate 1 through the other connecting rods 6. As the sliding frames 9 slide, the centering blocks 11 on the two symmetrical clamping devices 2 first clamp and center with the side of the battery box 3. The centering blocks 11 on the other two clamping devices 2 still have a certain distance between them and the side of the battery box 3. At this time, the other two sliding frames 9 are then clamped and centered. The adjustment screw 19 is used for adjustment; by turning the knob, the adjustment screw 19 is rotated. Under the action of the centering telescopic rod 4, the cross crank 7, the connecting rod 6, etc., the adjustment block 10 is fixed. The adjustment screw 19 drives the sliding frame 9 to slide along the base plate 1. The sliding frame 9 drives the centering block 11 to contact the side plate of the battery box 3, so that the centering blocks 11 on the four sets of clamping devices 2 are clamped and fixed to the side of the battery box 3. When the centering device is used next time, the clamping device 2 can be driven by the cross crank 7 and the connecting rod 6 to fix the battery box 3 synchronously, which improves the convenience of this application.

[0032] Furthermore, such as Figure 4 and Figure 6 As shown, a synchronous telescopic rod 17 is fixedly connected to the sliding frame 9, and a synchronous plate 16 is fixedly connected to the telescopic end of the synchronous telescopic rod 17; a plurality of guide rods 20 are fixedly connected to the synchronous plate 16, which are slidably connected to the corresponding clamping frame 8, and the plurality of guide rods 20 are fixedly connected to the corresponding centering block 11; the synchronous telescopic rod 17 drives the synchronous plate 16 to move, and the synchronous plate 16 drives the centering block 11 to contact or separate from the side of the battery box 3 through the guide rods 20. After the centering block 11 separates from the battery box 3, it is convenient for the welding equipment to weld the battery box 3.

[0033] Furthermore, a guide frame 23 is fixedly connected to the rotating frame 22, and a drive block 27 is slidably connected to the guide frame 23; a reverse component that drives the clamping component to move is connected to the drive block 27, and a synchronization component that drives the lower pressure block 12 to slide along the rotating frame 22 is also connected to the drive block 27; by setting the reverse component and the synchronization component, the clamping component and the lower pressure block 12 move synchronously, thereby improving the linkage of this application.

[0034] Furthermore, such as Figure 7-9 As shown, the clamping assembly includes a fixed block 14 fixedly connected to the clamping frame 8, and a movable block 13 slidably connected to the rotating frame 22, which cooperates with the fixed block 14 to clamp the side of the battery box 3; the reversing assembly includes a synchronous crank 32 rotatably connected to the rotating frame 22, with the middle part of the synchronous crank 32 rotatably connected to the rotating frame 22; one end of the synchronous crank 32 is rotatably connected to a driving rod 33, and the other end of the driving rod 33 is rotatably connected to a driving block 27; the other end of the synchronous crank 32 is rotatably connected to a driven rod 34, and the other end of the driven rod 34 is rotatably connected to the movable block 13.

[0035] When the clamping assembly is in use, as the sliding frame 9 and the clamping frame 8 move, when the centering block 11 contacts the side of the battery box 3, the fixing block 14 also contacts the side of the battery box 3; when the driving block 27 slides along the guide frame 23, the driving block 27 drives the synchronous crank 32 to rotate through the active rod 33, and the synchronous crank 32 drives the movable block 13 to slide along the rotating frame 22 through the driven rod 34. The movable block 13 and the fixing block 14 cooperate to fix the side of the battery box 3.

[0036] Furthermore, such as Figure 7-9 As shown, the synchronization component includes an L-shaped rod 29 rotatably connected to the guide frame 23. One end of the L-shaped rod 29 is rotatably connected to an input rod 28, and the other end of the input rod 28 is rotatably connected to a drive block 27. The other end of the L-shaped rod 29 is rotatably connected to an output rod 30, and the other end of the output rod 30 is rotatably connected to a pressing rod 21 slidably connected to the rotating frame 22. The pressing rod 21 is fixedly connected to the pressing block 12.

[0037] When the drive block 27 slides along the guide frame 23, the drive block 27 drives the L-shaped rod 29 to rotate through the input rod 28. The L-shaped rod 29 drives the pressing rod 21 to slide along the rotating frame 22 through the output rod 30. The pressing rod 21 presses and fixes the bottom of the battery box 3 through the pressing block 12.

[0038] Furthermore, such as Figure 7 and Figure 8As shown, a reduction motor 15 is fixedly connected to the clamping frame 8, and a traction crank 24 is fixedly connected to the output end of the reduction motor 15. A drive rod 25 is rotatably connected to the traction crank 24, and the other end of the drive rod 25 is rotatably connected to the drive block 27. The clamping frame 8 is provided with a horizontal slide groove 31 corresponding to the drive block 27. A fan-shaped slide groove 26 is connected to the horizontal slide groove 31. A roller that cooperates with the horizontal slide groove 31 and the fan-shaped slide groove 26 is rotatably connected to the drive block 27.

[0039] When the drive block 27 needs to slide along the guide frame 23, such as Figure 8 As shown, at this time, the geared motor 15 drives the traction crank 24 to rotate counterclockwise. The traction crank 24 drives the drive block 27 to move through the drive rod 25. Under the guidance of the horizontal slide 31 and the roller, the drive block 27 slides along the guide frame 23. If the traction crank 24 rotates clockwise, under the guidance of the fan-shaped slide 26 and the roller, the drive rod 25 drives the rotating frame 22 to rotate along the clamping frame 8 through the drive block 27 and the guide frame 23. This causes the rotating frame 22 and its lower pressing block 12, movable block 13, etc., to rotate to the side above the battery box 3. Under the action of the sliding frame 9 and the clamping frame 8, the lower pressing block 12, movable block 13, etc., can be separated from the battery box 3.

[0040] like Figures 1 to 9 As shown below, the working process of the present invention will be explained in detail.

[0041] When using this invention, the battery box 3 is placed on the support frame 5, and the central telescopic rod 4 is activated. The central telescopic rod 4 drives one of the sliding frames 9 to slide along the base plate 1. The sliding frame 9 drives the cross crank 7 to rotate through one of the connecting rods 6. The cross crank 7 drives the remaining sliding frames 9 to slide along the base plate 1 through the other connecting rods 6. The sliding frames 9 clamp and fix the sides and bottom of the battery box 3 around the center through the central block 11.

[0042] Start the geared motor 15. The geared motor 15 drives the traction crank 24 to rotate counterclockwise. The traction crank 24 drives the drive block 27 to move through the drive rod 25. Guided by the fan-shaped slide groove 26 and the roller, the drive rod 25 drives the rotating frame 22 to rotate along the clamping frame 8 through the drive block 27 and the guide frame 23, so that the rotating frame 22 is in a horizontal state when rotating. The pressing block 12, the movable block 13, etc. rotate to the side of the battery box 3 away from the center block 11. Figure 1 As shown; the geared motor 15 continues to rotate, and under the guidance of the horizontal slide 31 and the roller, the drive block 27 slides along the guide frame 23.

[0043] When the drive block 27 slides along the guide frame 23, the drive block 27 drives the synchronous crank 32 to rotate through the active rod 33. The synchronous crank 32 drives the movable block 13 to slide along the rotating frame 22 through the driven rod 34. The movable block 13 cooperates with the fixed block 14 to fix the side of the battery box 3. In addition, the drive block 27 drives the L-shaped rod 29 to rotate through the input rod 28. The L-shaped rod 29 drives the pressing rod 21 to slide along the rotating frame 22 through the output rod 30. The pressing rod 21 presses and fixes the bottom of the battery box 3 through the pressing block 12.

[0044] Start the synchronous telescopic rod 17, which drives the synchronous plate 16 to move. The synchronous plate 16, through the guide rod 20, drives the centering block 11 to separate from the side of the battery box 3. After the centering block 11 separates from the battery box 3, it is convenient for the welding equipment to weld the battery box 3.

Claims

1. A welding fixture for a new energy vehicle battery box, comprising a base plate, a support frame for supporting the battery box on top of the base plate, and clamping devices for clamping and fixing the battery box on all four sides of the support frame; characterized in that: The support frame is equipped with a centering device, which can simultaneously drive the four sets of clamping devices to slide along the base plate; each of the four sets of clamping devices includes a sliding frame that slides along the base plate, and the sliding frame is equipped with multiple clamping structures. Each of the aforementioned clamping structures includes a clamping frame fixedly connected to the sliding frame, and a centering block for centering the battery box is slidably connected to the clamping frame; a rotating frame is rotatably connected to the clamping frame, and a clamping assembly for clamping the side of the battery box is provided on the rotating frame; a pressing block that cooperates with the support frame to fix the bottom of the battery box is also slidably connected to the rotating frame, and the pressing block moves with the movement of the clamping assembly; A synchronous telescopic rod is fixedly connected to the sliding frame, and a synchronous plate is fixedly connected to the telescopic end of the synchronous telescopic rod; a plurality of guide rods are fixedly connected to the synchronous plate and are slidably connected to the corresponding clamping frame, and the plurality of guide rods are fixedly connected to the corresponding centering block. A guide frame is fixedly connected to the rotating frame, and a drive block is slidably connected to the guide frame; a reverse component that drives the clamping component to move is connected to the drive block, and a synchronization component that drives the pressing block to slide along the rotating frame is also connected to the drive block. The clamping assembly includes a fixed block that is fixedly connected to the clamping frame, and a movable block that cooperates with the fixed block to clamp the side of the battery box on the rotating frame. The reversing assembly includes a synchronous crank rotatably connected to the rotating frame, with the middle part of the synchronous crank rotatably connected to the rotating frame; one end of the synchronous crank is rotatably connected to a driving rod, and the other end of the driving rod is rotatably connected to a drive block; the other end of the synchronous crank is rotatably connected to a driven rod, and the other end of the driven rod is rotatably connected to a movable block. The synchronization component includes an L-shaped rod rotatably connected to the guide frame, an input rod rotatably connected to one end of the L-shaped rod, and a drive block rotatably connected to the other end of the input rod; an output rod rotatably connected to the other end of the L-shaped rod, and a pressure rod rotatably connected to the other end of the output rod slidably connected to the rotating frame, and the pressure rod is fixedly connected to the pressure block. A geared motor is fixedly connected to the clamping frame. A traction crank is fixedly connected to the output end of the geared motor. A drive rod is rotatably connected to the traction crank. The other end of the drive rod is rotatably connected to the drive block. The clamping frame is provided with a horizontal slide groove corresponding to the drive block. A fan-shaped slide groove is connected to the horizontal slide groove. A roller that cooperates with the horizontal slide groove and the fan-shaped slide groove is rotatably connected to the drive block.

2. The welding fixture for new energy vehicle battery boxes as described in claim 1, characterized in that: The centering device includes a cross crank rotatably connected to the support frame, and four connecting rods rotatably connected to the cross crank; each of the four sliding frames is slidably connected to an adjusting block, and the other end of each of the four connecting rods is rotatably connected to the corresponding adjusting block; a centering telescopic rod is fixedly connected to the base plate, and the telescopic end of the centering telescopic rod is fixedly connected to one of the sliding frames.

3. The welding fixture for new energy vehicle battery boxes as described in claim 2, characterized in that: The adjusting block is fixedly connected to a sliding rod that is slidably connected to the sliding frame. The adjusting block is also rotatably connected to an adjusting screw that is screwed to the sliding frame. A knob is fixedly connected to the adjusting screw.

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