Lithium battery cap welding device
The design of the rotating worktable and clamping mechanism enables automated welding of lithium battery caps, solving the problems of instability and safety hazards associated with manual operation, and improving welding efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-06
AI Technical Summary
Manual welding of lithium battery caps can easily lead to positional displacement, requiring constant angle adjustments, resulting in low work efficiency and safety hazards.
By employing a rotary worktable and multiple rotating stations, combined with a clamping mechanism and a drive mechanism, the welding process is automated, avoiding the instability and safety risks of manual operation.
It improves the stability and efficiency of lithium battery cap welding, reduces the safety risks of manual operation, and ensures welding quality.
Smart Images

Figure CN223971083U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery processing technology, and in particular to a lithium battery cap welding device. Background Technology
[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become the mainstream technology.
[0003] Currently, lithium battery cap welding devices require manual placement of the cap onto the lithium battery, followed by moving the battery under the welding device. The welding device is then controlled to perform the welding. Manual operation makes it easy to lose balance and misplace the cap. Furthermore, the angle needs to be constantly adjusted during the manual welding process, resulting in slow work efficiency. Workers working close to the welding machine may also be injured. Utility Model Content
[0004] The purpose of this invention is to provide a lithium battery cap welding device that solves the problems of unstable handling and placement, misalignment during manual operation, slow work efficiency, and potential injury to workers who are too close to the welding machine.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] This utility model discloses a lithium battery cap welding device, comprising a frame, a rotating worktable mounted on the frame, a first driving mechanism for driving the rotating worktable to rotate on one side of the rotating worktable, a plurality of rotating stations mounted on the rotating worktable, a second driving mechanism for driving the rotating station to rotate below the rotating station, a clamping mechanism mounted on the top surface of the rotating station, a support frame mounted on the rear side of the rotating worktable, a first movable seat and a third driving mechanism for driving the first movable seat to move up and down mounted in front of the support frame, a second movable seat and a fourth driving mechanism for driving the second movable seat to move back and forth mounted below the first movable seat, a mounting frame mounted on the second movable seat, a welder mounted on the mounting frame, and a welding device body electrically connected to the welder mounted on the frame.
[0007] Furthermore, the first drive mechanism includes a first motor, which is mounted on the frame. A first gear is mounted on the output shaft of the first motor, and a gear ring is mounted on the outer side of the rotary table, which meshes with the first gear.
[0008] Furthermore, the second drive mechanism includes a rotating shaft, which is rotatably mounted in a mounting hole on the surface of the rotary worktable. The rotating shaft has a rotating station on its top surface and a second gear at its bottom end. A second motor is located below the rotary worktable, and a third gear meshing with the second gear is located on the output shaft of the second motor.
[0009] Furthermore, the clamping mechanism includes a positioning disk, which is mounted on the top surface of the rotating station via a support block. A fixing block is provided on one side of the top surface of the positioning disk, and a fixing clamping plate is provided on one side of the fixing block. An installation block is provided on the other side of the top surface of the positioning disk, and an operating lever is provided on the installation block. A movable clamping plate is provided at the end of the operating lever near the fixing clamping plate.
[0010] Furthermore, a limiting frame is provided on the top surface of the positioning plate, and the limiting frame is located on the outside of the movable clamping plate.
[0011] Furthermore, the positioning plate is provided with a plurality of adjustment slots, and a first bolt assembly is provided in the adjustment slot on one side of the positioning plate. The first bolt assembly is connected to the fixing block, and a second bolt assembly is provided in the adjustment slot on the other side of the positioning plate. The second bolt assembly is connected to the mounting block.
[0012] Furthermore, the third driving mechanism includes a first cylinder, which is disposed on the top surface of the support frame. The first cylinder has a first movable seat on its working rod. A first slide rail is disposed in front of the support frame, and a first slider is disposed on the first slide rail. The first slider is disposed behind the first movable seat.
[0013] Furthermore, the fourth driving mechanism includes a second cylinder, which is disposed on the rear side of the first movable seat. The second movable seat is disposed on the working rod of the second cylinder. A second slide rail is disposed on the bottom surface of the first movable seat. A second slider is disposed on the second slide rail. The second slider is disposed on the top surface of the second movable seat.
[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0015] This utility model features a rotating worktable with multiple rotating stations, allowing workers to place lithium batteries at a distance from the welding machine, thus preventing injury during welding. The rotating stations are equipped with clamping mechanisms to hold the lithium batteries, improving clamping stability, preventing positional shifts, and enhancing welding quality. During welding, the welding machine remains in one position while the rotating stations rotate the lithium batteries, ensuring welding quality, improving work efficiency, and saving manpower. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a front view of the lithium battery cap welding device of this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the second drive mechanism of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the clamping mechanism of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the third and fourth drive mechanisms of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Rotary worktable; 3. First motor; 4. First gear; 5. Gear ring; 6. Rotary station; 7. Rotating shaft; 8. Second gear; 9. Second motor; 10. Third gear; 11. Clamping mechanism; 12. Support frame; 13. First cylinder; 14. First moving seat; 15. First slide rail; 16. First slider; 17. Second cylinder; 18. Second moving seat; 19. Second slide rail; 20. Second slider; 21. Mounting frame; 22. Main body of welding device; 23. Welder; 11-1. Positioning plate; 11-1-1. Adjustment groove; 11-2. Fixing block; 11-3. Fixed clamping plate; 11-4. Mounting block; 11-5. Operating lever; 11-6. Movable clamping plate; 11-7. Limiting frame; 11-8. First bolt assembly; 11-9. Second bolt assembly. Detailed Implementation
[0022] like Figure 1-4As shown, a lithium battery cap welding device includes a frame 1, on which a circular rotary worktable 2 is mounted. A central shaft is connected to the center of the bottom surface of the rotary worktable 2, and the central shaft is rotatably mounted on the frame 1 via bearings. A first drive mechanism for driving the rotary worktable 2 to rotate is provided on one side of the rotary worktable 2. Four rotating stations 6 are provided on the rotary worktable 2. A second drive mechanism for driving the rotating station 6 to rotate is provided below the rotating station 6. A clamping mechanism 11 is provided on the top surface of the rotating station 6. A support frame 1 is provided on the rear side of the rotary worktable 2. 2. A first movable seat 14 and a third drive mechanism for driving the first movable seat 14 to move up and down are provided in front of the support frame 12. A second movable seat 18 and a fourth drive mechanism for driving the second movable seat 18 to move back and forth are provided below the first movable seat 14. A mounting frame 21 is connected to the second movable seat 18. A welder 23 is mounted on the mounting frame 21. A welding device body 22 electrically connected to the welder 23 is connected to the frame 1. The welding device body and the welder are both existing technologies and can be obtained by purchasing them. Their specific structure and working method will not be described in detail here.
[0023] The first drive mechanism includes a first motor 3, which is mounted on the frame 1 via a motor bracket. A first gear 4 is connected to the output shaft of the first motor 3. A gear ring 5 is connected to the outer side of the rotary worktable 2, and the gear ring 5 meshes with the first gear 4. In use, the first motor 3 is started, which drives the first gear 4 to rotate. The rotation of the first gear 4 drives the gear ring 5 to rotate, thereby driving the rotary worktable 2 to rotate and completing the switching of work positions.
[0024] like Figure 2 As shown, the second drive mechanism includes a rotating shaft 7, which is rotatably mounted in a mounting hole on the surface of the rotary worktable 2 via a bearing. The top surface of the rotating shaft 7 is connected to the rotary station 6, and the bottom end of the rotating shaft 7 is connected to a second gear 8. A second motor 9 is mounted below the rotary worktable 2 via a motor bracket. A third gear 10, which meshes with the second gear 8, is connected to the output shaft of the second motor 9. In use, the second motor 9 is started, which drives the third gear 10 to rotate. The rotation of the third gear 10 drives the second gear 8 to rotate, which drives the rotating shaft 7 to rotate. The rotation of the rotating shaft 7 drives the rotary station 6 to rotate, facilitating the welding of the lithium battery cap.
[0025] like Figure 3As shown, the clamping mechanism 11 includes a positioning disk 11-1, which is connected to the top surface of the rotating station 6 via a support block. The positioning disk 11-1 has twelve adjustment slots 11-1-1. Three adjustment slots 11-1-1 on one side of the positioning disk 11-1 are each fitted with a first bolt assembly 11-8. The first screw in the first bolt assembly 11-8 is installed in a slot of the fixing block 11-2 and locked in place by a first nut. A fixing clamping plate 11-3 is connected to one side of the fixing block 11-2. Two adjustment slots 11-1-1 on the other side of the positioning disk 11-1 are each fitted with a second bolt assembly 11-9. The second screw in the second bolt assembly 11-9 is installed in a slot at the end of the mounting block 11-4 and locked in place by a second nut. A [missing information - likely a typo, should be "…"] is provided in the middle of the mounting block 11-4. A threaded hole is provided, and an operating rod 11-5 is internally threaded into the threaded hole. One end of the operating rod 11-5 near the fixed clamping plate 11-3 is connected to a movable clamping plate 11-6. A U-shaped limiting bracket 11-7 is also connected to the top surface of the positioning disc 11-1. The limiting bracket 11-7 is positioned outside the movable clamping plate 11-6 to ensure that the movable clamping plate 11-6 moves in the same direction without positional deviation. The positions of the fixed block 11-2 and the mounting block 11-4 can be changed by adjusting the positions of the first bolt assembly 11-8 and the second bolt assembly 11-9, thereby changing the distance between the fixed clamping plate 11-3 and the movable clamping plate 11-6 to accommodate different types of lithium batteries. In use, rotating the operating rod 11-5 causes the movable clamping plate 11-6 to move closer to the fixed clamping plate 11-3, thus clamping the lithium battery.
[0026] like Figure 4 As shown, the third driving mechanism includes a first cylinder 13, which is mounted on the top surface of the support frame 12. The working rod of the first cylinder 13 is connected to the first movable seat 14. A first slide rail 15 is mounted on the front of the support frame 12, and a first slider 16 is slidably mounted on the first slide rail 15. The first slider 16 is connected to the rear of the first movable seat 14. In use, the working rod of the first cylinder 13 extends to drive the first movable seat 14 to move downward. During this process, the first slider 16 moves along the first slide rail 15, improving the stability of the movement of the first movable seat 14.
[0027] The fourth drive mechanism includes a second cylinder 17, which is mounted on the rear side of the first movable seat 14. The working rod of the second cylinder 17 is connected to the second movable seat 18. A second slide rail 19 is mounted on the bottom surface of the first movable seat 14, and a second slider 20 is slidably mounted on the second slide rail 19. The second slider 20 is connected to the top surface of the second movable seat 18. In use, the working rod of the second cylinder 17 extends to push the second movable seat 18 forward. During this process, the second slider 20 moves along the second slide rail 19, improving the stability of the movement of the second movable seat 18.
[0028] The working process of this utility model is as follows:
[0029] First, place the lithium battery on the positioning plate 11-1, rotate the operating lever 11-5, and the operating lever 11-5 will move the movable clamping plate 11-6 closer to the fixed clamping plate 11-3, thereby clamping the lithium battery. Manually place the cap on the lithium battery. Then, start the first motor 3, which drives the first gear 4 to rotate. The rotation of the first gear 4 drives the gear ring 5 to rotate, thereby rotating the rotary worktable 2 and rotating the rotary station 6 with the lithium battery on it below the welder 23. After that, the working rod of the first cylinder 13 extends and drives the first moving seat 14 to move downward, and the working rod of the second cylinder 17 extends and pushes the second moving seat 18 to move forward, adjusting the welder 23 to the working position. Finally, start the second motor 9, which drives the third gear 10 to rotate. The rotation of the third gear 10 drives the second gear 8 to rotate, and the rotation of the second gear 8 drives the rotating shaft 7 to rotate. The rotation of the rotating shaft 7 drives the rotary station 6 to rotate, thereby rotating the lithium battery and welding the lithium battery cap with the welder 23.
[0030] While welding the lithium battery cap on one of the rotary stations 6, the workers place the lithium battery and cap on other rotary stations 6. After the welding work on the previous rotary station 6 is completed, the first drive mechanism drives the rotary worktable 2 to rotate, switching stations to ensure continuous welding work and improve work efficiency.
[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A lithium battery cap welding apparatus characterized by: The utility model provides a welding device, including frame (1), be provided with rotating workbench (2) on frame (1), one side of rotating workbench (2) is provided with first drive mechanism for driving rotating workbench (2) rotation, be provided with a plurality of rotating station (6) on rotating workbench (2), the below of rotating station (6) is provided with second drive mechanism for driving rotating station (6) rotation, the top surface of rotating station (6) is provided with clamping mechanism (11), the rear side of rotating workbench (2) is provided with support frame (12), the front of support frame (12) is provided with first mobile seat (14) and third drive mechanism for driving first mobile seat (14) up and down movement, the below of first mobile seat (14) is provided with second mobile seat (18) and fourth drive mechanism for driving second mobile seat (18) front and back movement, be provided with mounting bracket (21) on second mobile seat (18), be provided with welding device main part (22) of welding ware (23) on mounting bracket (21), be provided with welding device main part (22) of welding ware (23) electrical connection on frame (1).
2. The lithium battery cap welding device of claim 1, wherein: The first drive mechanism includes a first motor (3), the first motor (3) is arranged on the frame (1), a first gear (4) is arranged on the output shaft of the first motor (3), a gear ring (5) is arranged on the outside of the rotating workbench (2), and the gear ring (5) is engaged with the first gear (4).
3. The lithium battery cap welding device of claim 1, wherein: The second drive mechanism includes a rotating shaft (7), the rotating shaft (7) is rotatably installed in the mounting hole of the surface of the rotating workbench (2), the top surface of the rotating shaft (7) is provided with the rotating station (6), the bottom end of the rotating shaft (7) is provided with a second gear (8), and a second motor (9) is arranged below the rotating workbench (2), a third gear (10) is arranged on the output shaft of the second motor (9) and engaged with the second gear (8).
4. The lithium battery cap welding device of claim 1, wherein: The clamping mechanism (11) includes a positioning disc (11-1), the positioning disc (11-1) is arranged on the top surface of the rotating station (6) through a support block, one side of the top surface of the positioning disc (11-1) is provided with a fixed block (11-2), one side of the fixed block (11-2) is provided with a fixed clamping plate (11-3), the other side of the top surface of the positioning disc (11-1) is provided with a mounting block (11-4), the mounting block (11-4) is provided with an operating rod (11-5), and one end of the operating rod (11-5) close to the fixed clamping plate (11-3) is provided with a movable clamping plate (11-6).
5. The lithium battery cap welding device of claim 4, wherein: The top surface of the positioning disc (11-1) is also provided with a limiting frame (11-7), and the limiting frame (11-7) is arranged outside the movable clamping plate (11-6).
6. The lithium battery cap welding device of claim 4, wherein: The positioning disc (11-1) is provided with a plurality of adjusting grooves (11-1-1), the adjusting groove (11-1-1) on one side of the positioning disc (11-1) is provided with a first bolt assembly (11-8), the first bolt assembly (11-8) is connected with the fixed block (11-2), the adjusting groove (11-1-1) on the other side of the positioning disc (11-1) is provided with a second bolt assembly (11-9), and the second bolt assembly (11-9) is connected with the mounting block (11-4).
7. The lithium battery cap welding device of claim 1, wherein: The third driving mechanism comprises a first cylinder (13), the first cylinder (13) is arranged on the top surface of the support frame (12), the working rod of the first cylinder (13) is provided with the first moving seat (14), the front surface of the support frame (12) is provided with a first sliding rail (15), the first sliding rail (15) is provided with a first sliding block (16), and the first sliding block (16) is arranged on the rear surface of the first moving seat (14).
8. The lithium battery cap welding device of claim 1, wherein: The fourth driving mechanism comprises a second cylinder (17), the second cylinder (17) is arranged on the rear side of the first moving seat (14), the working rod of the second cylinder (17) is provided with the second moving seat (18), the bottom surface of the first moving seat (14) is provided with a second sliding rail (19), the second sliding rail (19) is provided with a second sliding block (20), and the second sliding block (20) is arranged on the top surface of the second moving seat (18).