Welding equipment for battery pack
By designing welding equipment for battery packs, a sliding rail and laser positioning system is used to achieve precise alignment of the welding torch and stable positioning of the battery pack, solving the problem of poor stability in manual welding, improving welding stability and convenience, and ensuring reliable connection of the battery pack.
Patent Information
- Application Number
- CN202520040820.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-08
AI Technical Summary
When welding the terminals and battery pack manually with a welding torch, the stability is poor, which affects the stability of the connection after the terminals and battery pack are welded.
A welding device comprising a frame, welding torch, worktable, adjustment components, and positioning components was designed. Utilizing X-axis slide rails, Y-axis slide rails, Z-axis slide rails, and a laser positioning system, it achieves precise alignment of the welding torch and stable positioning of the battery pack. Combined with a material handling cylinder and a dust extraction system, it enhances welding stability and convenience.
This improves the stability and convenience of the welding process, ensures a reliable connection between the terminals and the battery pack, reduces the instability of manual operation, and enhances the processing quality of the battery pack.
Smart Images

Figure CN223889267U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery pack processing technology, and in particular to a welding device for battery packs. Background Technology
[0002] Currently, a battery pack is a complex energy storage system composed of multiple battery cells (cells). It is assembled using specific electrical and mechanical structures and is widely used in electric vehicles and renewable energy systems. The core function of a battery pack is to provide a power source, while also incorporating multiple protection and management systems to ensure battery safety, efficiency, and lifespan. During the manufacturing process of a battery pack, terminals need to be soldered onto the pack to ensure the stability and reliability of the electrical connections.
[0003] In related technologies, when workers solder terminals onto battery packs, the procedure is to take a battery pack, fix it on a fixture on a table, place the terminals on the corresponding soldering positions on the battery pack, and then use a soldering gun to solder the terminals onto the battery pack along the weld seam between the terminals and the battery pack.
[0004] Regarding the aforementioned technologies, the inventors believe that when manually welding the weld between the terminal and the battery pack using a welding torch, the stability of manual welding is poor, which in turn affects the stability of the connection after the terminal and the battery pack are welded. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a welding device for battery packs, which solves the technical problem that the stability of manual welding is poor when welding the weld between the terminals and the battery pack using a welding gun, thus affecting the connection stability after the terminals and the battery pack are welded.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A welding apparatus for a battery pack includes: a frame for supporting the welding apparatus; a welding torch mounted on the frame for welding terminals onto the battery pack; a worktable rotatably mounted on the frame for placing the battery pack on the worktable; an adjustment assembly mounted on the frame for driving the welding torch to move on the frame; and a positioning assembly mounted on the worktable for positioning the battery pack.
[0008] Furthermore, the adjustment assembly includes an X-axis slide rail, a Y-axis slide rail, and a Z-axis slide rail. The X-axis slide rail is mounted on the frame, the Y-axis slide rail is slidably mounted on the X-axis slide rail, and the Z-axis slide rail is slidably mounted on the Y-axis slide rail. An adjustment block is provided on the Z-axis slide rail, the welding torch is rotatably mounted on the adjustment block, and a rotary motor is provided on the adjustment block. The output shaft of the rotary motor is connected to the welding torch.
[0009] Furthermore, the positioning component includes a laser emitter and a laser receiver. The laser receiver is installed in the middle of the X-axis slide rail, and the laser emitter is installed on the worktable. Several laser emitters are installed at intervals on the worktable.
[0010] Furthermore, the worktable is provided with a guide rail and a slider, the slider is slidably mounted on the guide rail, and a fixing post and a clamping plate are respectively provided on both sides of the slider. A connecting spring is provided between the fixing post and the clamping plate, and the clamping plate is connected to the slider.
[0011] Furthermore, a positioning cylinder is provided on the slider, the positioning cylinder is mounted on the slider, and a positioning block is provided at one end of the piston rod of the positioning cylinder.
[0012] Furthermore, a material-picking cylinder is provided on the workbench. The material-picking cylinder is installed on the workbench, and one end of the piston rod of the material-picking cylinder abuts against the clamping plate.
[0013] Furthermore, a dust suction hood is provided on the frame, and a dust suction pipe is provided on the dust suction hood. One end of the dust suction pipe is connected to the dust suction hood, and the other end extends away from the dust suction hood.
[0014] In summary, this application includes at least one of the following beneficial technical effects of welding equipment for battery packs:
[0015] The battery pack is placed on the workbench, and the positioning component fixes the position of the battery pack. Then, the position of the welding gun is adjusted by the adjustment component so that the tip of the welding gun can be aligned with the weld seam between the terminal and the battery pack. As the workbench rotates on the frame, the battery pack rotates and moves to the side closer to the welding gun. The welding gun welds the terminal and the weld seam, eliminating the need for manual welding of the terminal and the battery pack seam, improving the stability of the welding process, and enabling the terminal and battery pack to be used normally after welding.
[0016] By setting up a laser emitter and laser receiver, as well as a positioning cylinder and positioning block, the accuracy of the battery pack's position on the worktable is improved.
[0017] The use of a material handling cylinder and clamping plate improves the ease of picking up and placing battery packs on the workbench. Attached Figure Description
[0018] Figure 1 This application mainly provides a schematic diagram of the overall structure of a welding equipment for battery packs;
[0019] Figure 2 This is a schematic diagram of the main adjustment component structure provided in this application;
[0020] Figure 3 This is a schematic diagram of the main workbench structure provided in this application;
[0021] Figure 4 This is a schematic diagram of the positioning block structure mainly provided in this application.
[0022] Reference numerals: 1. Frame; 11. Dust hood; 12. Dust suction pipe; 2. Welding torch; 3. Workbench; 31. Guide rail; 311. Slider; 32. Fixed column; 33. Clamping plate; 34. Connecting spring; 35. Material picking cylinder; 36. Positioning cylinder; 37. Positioning block; 4. Adjustment component; 41. X-axis slide rail; 42. Y-axis slide rail; 43. Z-axis slide rail; 44. Adjustment block; 45. Rotary motor; 5. Positioning component; 51. Laser emitter; 52. Laser receiver. Detailed Implementation
[0023] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0025] This application discloses a welding device for battery packs.
[0026] Reference Figure 1 A welding device for battery packs includes a frame 1, on which a welding torch 2 and a worktable 3 are mounted. Terminals and a battery pack are placed on the worktable 3. The welding torch 2 is used to weld the terminals onto the battery pack. An adjustment component 4 and a positioning component 5 are mounted on the frame 1. The adjustment component 4 adjusts the position of the welding torch 2 on the frame 1, and the positioning component 5 positions the battery pack.
[0027] Reference Figure 2The adjustment assembly 4 includes an X-axis slide rail 41, a Y-axis slide rail 42, and a Z-axis slide rail 43. The X-axis slide rail 41 is mounted on the frame 1. The Y-axis slide rail 42 is perpendicular to the X-axis slide rail 41 and is slidably mounted on the X-axis slide rail 41. The Z-axis slide rail 43 is vertically arranged and is perpendicular to the Y-axis slide rail. An adjustment block 44 is provided on the Z-axis slide rail 43 and is slidably mounted on the Z-axis slide rail 43. Furthermore, the welding torch 2 is rotatably mounted on the adjustment block 44. To improve the ease of rotation of the welding torch 2 on the adjustment block 44, a rotary motor 45 is provided on the adjustment block 44. The output shaft of the rotary motor 45 is connected to the welding torch 2, and the welding torch 2 rotates on the adjustment block 44 via the rotary motor 45. In use, the Y-axis slide rail 42, the Z-axis slide rail 43 and the rotating motor 45 control the position of the welding gun on the frame 1. When one end of the welding gun 2 is aligned with the weld seam between the terminal and the battery pack, the welding gun 2 slides along the X-axis slide rail 41, so that the welding gun 2 completes the welding of the terminal and the battery pack.
[0028] Reference Figures 2-3 To improve the accuracy of the battery pack's position during operation, the positioning component 5 includes a laser emitter 51 and a laser receiver 52. The laser emitters 51 are mounted on the worktable 3, and several laser emitters 51 are spaced apart on the worktable 3. Preferably, four laser emitters 51 are evenly spaced. In use, the battery pack is mounted on the worktable 3, corresponding to the laser emitters 51. The laser receiver 52 is mounted in the middle of the X-axis slide rail 41. As the worktable 3 rotates, when the laser receiver 52 receives a laser emitted by one of the laser emitters 51, the worktable 3 stops rotating. After the welding torch 2 completes welding the terminals to the battery pack, the worktable 3 continues to rotate, allowing the welding torch 2 to weld subsequent terminals to the battery pack.
[0029] Reference Figures 3-4 The worktable 3 is equipped with guide rails 31 and sliders 311. Two sets of guide rails 31 and sliders 311 are spaced apart on both sides of the battery pack. Both guide rails 31 are installed on both sides of the battery pack, and the sliders 311 are slidably mounted on the corresponding guide rails 31. Furthermore, a fixing post 32 and a clamping plate 33 are respectively provided on both sides of the slider 311. The clamping plate 33 is mounted on the slider 311, and the fixing post 32 is mounted on the worktable 3. A connecting spring 34 is provided between the slider 311 and the fixing post 32, with both ends of the connecting spring 34 connected to the fixing post 32 and the slider 311, respectively. In use, the connecting spring 34 fixes the battery pack through the slider 311 and the clamping plate 33.
[0030] Reference Figure 4To improve the ease of removing the battery pack after welding, a material-retrieving cylinder 35 is installed on the workbench 3, with one end of the piston rod of the material-retrieving cylinder 35 facing the side of the clamping plate 33. When it is necessary to remove the battery pack, the material-retrieving cylinder 35 pushes the clamping plate 33 away from the battery pack, thereby improving the ease of removing the battery pack from the workbench 3.
[0031] Each of the two sliders 311 is equipped with a positioning cylinder 36 and a positioning block 37. The positioning cylinders 36 are mounted on the sliders 311, with the piston rods of both positioning cylinders 36 facing the battery pack. The positioning blocks 37 are mounted on one end of the piston rod of the corresponding positioning cylinder 36, and the two positioning blocks 37 are arranged in parallel intervals. When the battery pack is placed between the two positioning blocks 37, the two positioning cylinders 36 drive the two positioning blocks 37 to move towards the side closer to the battery pack, so that the position of the battery pack is parallel to the clamping plate 33, further improving the stability of the battery pack's position on the worktable 3.
[0032] Reference Figure 1 During the welding process, the welding torch 2 generates a significant amount of dust. Therefore, a dust extraction hood 11 is installed on the frame 1, facing towards the battery pack. A suction pipe 12 is attached to the dust extraction hood 11, with one end connected to the hood and the other end extending away from it. In use, an external air extraction device is connected to the dust extraction hood 11 via the suction pipe 12. When the welding torch 2 is welding, the external air extraction device removes the fumes generated during the welding process.
[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A welding device for battery packs, characterized in that, include: A frame (1) is used to support welding equipment; A welding torch (2) is mounted on the frame (1) and is used to weld terminals onto the battery pack. A workbench (3) is rotatably mounted on a frame (1), and a battery pack is placed on the workbench (3). Adjustment component (4), which is mounted on the frame (1), is used to drive the welding torch (2) to move on the frame (1); Positioning component (5), which is mounted on the worktable (3), is used to position the battery pack. The workbench (3) is provided with a guide rail (31) and a slider (311). The slider (311) is slidably mounted on the guide rail (31). A fixing post (32) and a clamping plate (33) are respectively provided on both sides of the slider (311). A connecting spring (34) is provided between the fixing post (32) and the clamping plate (33). The clamping plate (33) is connected to the slider (311). A positioning cylinder (36) is provided on the slider (311). The positioning cylinder (36) is mounted on the slider (311), and a positioning block (37) is provided at one end of the piston rod of the positioning cylinder (36).
2. The welding equipment for battery packs according to claim 1, characterized in that, The adjustment assembly (4) includes an X-axis slide rail (41), a Y-axis slide rail (42), and a Z-axis slide rail (43). The X-axis slide rail (41) is mounted on the frame (1). The Y-axis slide rail (42) is slidably mounted on the X-axis slide rail (41). The Z-axis slide rail (43) is slidably mounted on the Y-axis slide rail (42). An adjustment block (44) is provided on the Z-axis slide rail (43). The welding torch (2) is rotatably mounted on the adjustment block (44). A rotary motor (45) is provided on the adjustment block (44). The output shaft of the rotary motor (45) is connected to the welding torch (2).
3. The welding equipment for battery packs according to claim 2, characterized in that, The positioning component (5) includes a laser emitter (51) and a laser receiver (52). The laser receiver (52) is installed in the middle of the X-axis slide rail (41), and the laser emitter (51) is installed on the worktable (3). Several laser emitters (51) are installed at intervals on the worktable (3).
4. The welding equipment for battery packs according to claim 3, characterized in that, The workbench (3) is provided with a material picking cylinder (35), which is installed on the workbench (3). One end of the piston rod of the material picking cylinder (35) abuts against the clamping plate (33).
5. The welding equipment for battery packs according to claim 1, characterized in that, The frame (1) is provided with a dust suction hood (11), and the dust suction hood (11) is provided with a dust suction pipe (12). One end of the dust suction pipe (12) is connected to the dust suction hood (11), and the other end extends away from the dust suction hood (11).