Lithium ion battery electrode plate and tab welding device

Abstract

The utility model relates to the technical field of welding, in particular to a lithium ion battery electrode slice and tab welding device which comprises a base and a top plate, the base is fixedly connected with the top plate through a supporting column, a rotating mechanism is arranged below the top plate, a second support is arranged below the top plate, and a second motor is fixedly connected to the outer wall of the second support. An output shaft of the second motor is fixedly connected with a double-end stud. The electrode plate tab is arranged outside the second clamping block in a sleeving mode, the electric push rod is started, the electric push rod drives the vertical rod to move, the vertical rod drives the supporting rod to move, the supporting rod drives the sliding block to slide, the first sliding block drives the second moving block to move, the second moving block drives the second clamping block to move, the outer wall of the second clamping block makes contact with the electrode plate tab, and the electrode plate tab is positioned. And the electric telescopic rod controls the electrode plate tab to descend, so that the electrode plate tab is in contact with the lithium ion battery, and the electrode plate tab and the lithium ion battery are relatively fixed, so that the electrode plate tab is conveniently positioned on the lithium ion battery.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a lithium ion battery electrode tab welding device. Background Art

[0002] The positive and negative poles of lithium-ion batteries have tabs, through which the battery can be connected to other electrical devices.

[0003] For example, a lithium-ion battery electrode sheet and ear welding device with patent number CN220388260U includes a lifting module, an adjustment module, a clamping module, and a support assembly; wherein the adjustment module includes a U-shaped plate, and the two U-shaped clamps are used to clamp and fix the lithium battery through the clamping module, and the distance between the two pressing rings is adjusted according to the position of the electrode sheet on the lithium battery. The above document still has deficiencies. When in use, the distance between the two pressing rings is made equal to the distance between the two electrode sheets on the lithium battery through the adjustment module, and the two ears are placed on the upper side of the electrode sheet of the lithium battery respectively, and the two pressing rings are made to contact the ears and press the ears through the lifting module. At this time, the adjustment module continues to move downward, so that the spring is compressed, and the two laser welding heads move downward, so that the laser welding heads pass through the pressing ring and contact the pole ear. However, in the above document, the electrode sheet pole ear has a fixing function only when welding. Before welding, the staff needs to manually place the electrode sheet pole ear and wait for the pressing device to press down before releasing the electrode sheet pole ear. When positioning, the laser welding head also falls, which is easy to cause damage to the operator's hands. It is not convenient to position the electrode sheet pole ear on the lithium-ion battery. At the same time, the position of the electrode sheet pole ear on the lithium-ion battery is prone to tilt. When welding, it is not convenient to adjust the inclination angle of the electrode sheet pole ear. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to position the electrode tab of an electrode sheet on a lithium ion battery, and proposes a lithium ion battery electrode tab welding device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lithium-ion battery electrode plate and tab welding device is designed, comprising a base and a top plate, the base is fixedly connected to the top plate by a support, a rotating mechanism is arranged below the top plate, a second bracket is arranged below the top plate, a second motor is fixedly connected to the outer wall of the second bracket, a stud is fixedly connected to the output shaft of the second motor, two threaded blocks are threadedly connected to the outer wall of the stud, an electric telescopic rod is fixedly connected below the threaded block, a positioning mechanism is arranged below the electric telescopic rod, a moving block 1 is fixedly connected to the upper surface of the threaded block, and the moving block 1 is slidably connected to the outer wall of the cross bar.

[0007] Preferably, the positioning mechanism includes a first bracket, the first bracket is fixedly connected to the bottom of the electric telescopic rod, the interior of the first bracket is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a vertical rod, the outer wall of the vertical rod is rotatably connected to two support rods through a pin shaft, the ends of the support rods are rotatably connected to a slider 1 through a pin shaft, the outer walls of the two sliders 1 are both slidably connected to the first bracket, the outer wall of the slider 1 is fixedly connected to a moving block 2, and the outer wall of the moving block 2 is fixedly connected to a clamping block 2.

[0008] Preferably, the rotating mechanism includes a first motor, which is fixedly connected to the upper surface of the top plate, and the output shaft of the first motor is fixedly connected to a disk, and the disk is rotatably connected to the top plate through a bearing, and the inside of the disk is slidably connected to a connecting rod, and the end of the connecting rod is fixedly connected to a slider 2, and the slider 2 is slidably connected to the outer wall of the frame, and the frame is fixed to the outer wall of the rotating rod, and the outer walls at both ends of the rotating rod are rotatably connected to the top plate through bearings, and the outer wall of the rotating rod is fixedly connected to the second bracket.

[0009] Preferably, both ends of the crossbar are fixedly connected to the second bracket, and a welding mechanism is fixedly connected to the top of the base.

[0010] Preferably, the outer walls of the two clamping blocks 2 are fitted with electrode tabs.

[0011] Preferably, a lithium-ion battery is placed on the upper surface of the base.

[0012] Preferably, two cylinders are fixedly connected to the upper surface of the base, and a clamping block 1 is fixedly connected to the output end of the cylinder.

[0013] The utility model provides a lithium-ion battery electrode sheet and ear welding device, which has the beneficial effects of: through the cooperation among the first bracket, the electric push rod, the vertical rod, the support rod, the slider one, the moving block two and the clamping block two, the electrode sheet ear is sleeved on the outside of the clamping block two, the electric push rod is started, the electric push rod drives the vertical rod to move, the vertical rod drives the support rod to move, the support rod drives the slider to slide, the slider one drives the moving block two to move, the moving block two drives the clamping block two to move, the outer wall of the clamping block two contacts with the electrode sheet ear, the electrode sheet ear is positioned, the electric telescopic rod controls the electrode sheet ear to descend, the electrode sheet ear is contacted with the lithium-ion battery, the electrode sheet ear and the lithium-ion battery are relatively fixed, and it is convenient to position the electrode sheet ear on the lithium-ion battery.

[0014] Through the cooperation between the first motor, the disc, the connecting rod, the second slider, the frame and the rotating rod, the first motor drives the disc to rotate, the disc drives the connecting rod to move, the connecting rod drives the second slider to slide, the second slider drives the frame to move while sliding on the outer wall of the frame, the frame drives the rotating rod to move, and when the disc drives the connecting rod to move, the front and rear positions of the connecting rod move, and then the rotating rod can swing back and forth during movement, the rotating rod drives the second bracket to move, and then drives the electrode sheet ear to move, so as to adjust the inclination angle of the electrode sheet ear, so as to facilitate the adjustment of the inclination angle of the electrode sheet ear during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural sectional view of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the connection between the first motor, the disc and the connecting rod in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the connection between the cylinder, the clamping block 1 and the base in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the connection between the first bracket, the vertical rod and the supporting rod in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the connection between the second moving block, the second clamping block and the first bracket in the utility model.

[0021] In the figure: 1, base, 2, top plate, 3, positioning mechanism, 301, first bracket, 302, electric push rod, 303, vertical rod, 304, support rod, 305, slider 1, 306, moving block 2, 307, clamping block 2, 3a1, guide block, 3a2, guide rod, 4, rotating mechanism, 401, first motor, 402, disc, 403, connecting rod, 404, slider 2, 405, frame, 406, rotating rod, 5, second bracket, 6, second motor, 7, stud, 8, threaded block, 9, electric telescopic rod, 10, moving block 1, 11, cross bar, 12, electrode sheet ear, 13, lithium-ion battery, 14, cylinder, 15, clamping block 1, 16, welding mechanism. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings: Example 1

[0023] See attached Figure 1-6: In the present embodiment, a lithium-ion battery electrode tab welding device comprises a base 1 and a top plate 2, wherein the base 1 is fixedly connected to the top plate 2 via a support, a rotating mechanism 4 is arranged below the top plate 2, and the rotating mechanism 4 adjusts the angle of the electrode tab 12, and a second bracket 5 is arranged below the top plate 2, a second motor 6 is fixedly connected to the outer wall of the second bracket 5, a stud 7 is fixedly connected to the output shaft of the second motor 6, and the second motor 6 drives the stud 7 to rotate, and the outer wall of the stud 7 is threadedly connected to two threaded blocks 8, and the stud 7 drives the two threaded blocks 8 to move, and an electric telescopic rod 9 is fixedly connected to the lower part of the threaded block 8;

[0024] The threaded block 8 drives the electric telescopic rod 9 to move. A positioning mechanism 3 is arranged below the electric telescopic rod 9. The positioning mechanism 3 positions the electrode sheet pole ear 12. A moving block 10 is fixedly connected to the upper surface of the threaded block 8. The threaded block 8 drives the moving block 10 to move. The moving block 10 is slidably connected to the outer wall of the cross bar 11. The moving block 10 slides on the outer wall of the cross bar 11. Both ends of the cross bar 11 are fixedly connected to the second bracket 5. The moving block 10 and the cross bar 11 guide the movement of the threaded block 8. A welding mechanism 16 is fixedly connected above the base 1. The welding mechanism 16 welds the electrode sheet pole ear 12. A lithium-ion battery 13 is placed on the upper surface of the base 1. Two cylinders 14 are fixedly connected to the upper surface of the base 1. A clamping block 15 is fixedly connected to the output end of the cylinder 14. The cylinder 14 drives the clamping plate 15 to move, and the clamping plate 15 positions the lithium-ion battery 13.

[0025] The positioning mechanism 3 includes a first bracket 301, an electric push rod 302, a vertical rod 303, a support rod 304, a slider 1 305, a moving block 2 306 and a clamping block 2 307. The first bracket 301 is fixedly connected to the lower side of the electric telescopic rod 9. The electric telescopic rod 9 drives the first bracket 301 to move. The electric push rod 302 is fixedly connected to the interior of the first bracket 301. The output end of the electric push rod 302 is fixedly connected to the vertical rod 303. The electric push rod 302 drives the vertical rod 303 to move. The outer wall of the vertical rod 303 is rotatably connected to two support rods 304 through a pin shaft. The vertical rod 303 drives the two support rods 304 to move. The ends of the support rods 304 are rotatably connected to the slider 1 305 through a pin shaft. The support rod 304 drives the slider 1 305 to move. The outer walls of the two sliders 1 305 are both slidably connected to the first bracket 301. The slider 1 305 slides inside the first bracket 301.

[0026] The outer wall of the slider 1 305 is fixedly connected with the moving block 2 306, and the slider 1 305 drives the moving block 2 306 to move. The outer wall of the moving block 2 306 is fixedly connected with the clamping block 2 307, and the moving block 2 306 drives the clamping block 2 307 to move. The outer walls of the two clamping blocks 307 are attached with the electrode tabs 12, and the two clamping blocks 307 position the electrode tabs 12.

[0027] The electrode sheet pole ear 12 is sleeved on the outside of the clamping block 307, and the electric push rod 302 is started. The electric push rod 302 drives the vertical rod 303 to move, the vertical rod 303 drives the support rod 304 to move, the support rod 304 drives the slider 1 305 slider, the slider 1 305 drives the moving block 2 306 to move, the moving block 2 306 drives the clamping block 2 307 to move, the outer wall of the clamping block 2 307 contacts the electrode sheet pole ear 12, and the electrode sheet pole ear 12 is positioned, the electric telescopic rod 9 controls the electrode sheet pole ear 12 to descend, so that the electrode sheet pole ear 12 contacts the lithium-ion battery 13, and the electrode sheet pole ear 12 and the lithium-ion battery 13 are relatively fixed, so as to facilitate the positioning of the electrode sheet pole ear 12 on the lithium-ion battery 13.

[0028] The rotating mechanism 4 includes a first motor 401, a disk 402, a connecting rod 403, a second slider 404, a frame 405 and a rotating rod 406. The first motor 401 is fixedly connected to the upper surface of the top plate 2. The output shaft of the first motor 401 is fixedly connected to the disk 402. The first motor 401 drives the disk 402 to rotate. The disk 402 is rotationally connected to the top plate 2 through a bearing. The inside of the disk 402 is slidably connected to the connecting rod 403. The disk 402 drives the connecting rod 403 to move. The end of the connecting rod 403 is fixedly connected to the second slider 404. The connecting rod 403 drives the block 404 to slide.

[0029] The second slider 404 is slidably connected to the outer wall of the frame 405, and the second slider 404 drives the frame 405 to move. The frame 405 is fixedly connected to the outer wall of the rotating rod 406, and the frame 405 drives the rotating rod 406 to move. The outer walls at both ends of the rotating rod 406 are rotatably connected to the top plate 2 through bearings. The outer wall of the rotating rod 406 is fixedly connected to the second bracket 5, and the rotating rod 406 drives the second bracket 5 to move.

[0030] The first motor 401 drives the disk 402 to rotate, the disk 402 drives the connecting rod 403 to move, the connecting rod 403 drives the slider 404 to slide, the slider 404 slides on the outer wall of the frame 405 while driving the frame 405 to move, the frame 405 drives the rotating rod 406 to move, and when the disk 402 drives the connecting rod 403 to move, the front and rear positions of the connecting rod 403 move, and then the rotating rod 406 can swing back and forth during movement, the rotating rod 406 drives the second bracket 5 to move, and then drives the electrode sheet ear 12 to move, and adjusts the inclination angle of the electrode sheet ear 12. When welding, it is convenient to adjust the inclination angle of the electrode sheet ear 12.

[0031] Working principle:

[0032] Electrode tab positioning stage:

[0033] When welding the electrode tab 12 of the lithium-ion battery 13, the electrode tab 12 is sleeved on the outside of the clamp block 2 307, and the electric push rod 302 is started. The electric push rod 302 drives the vertical rod 303 to move, and the vertical rod 303 drives the support rod 304 to move. The support rod 304 drives the slider 1 305, the slider 1 305 drives the moving block 2 306 to move, and the moving block 2 306 drives the clamp block 2 307 to move. The outer wall of the clamp block 2 307 contacts the electrode tab 12, and the electrode tab 12 is positioned, and the lithium-ion battery 13 is placed on the base 1. On the upper surface, the cylinder 14 drives the clamping block 15 to move, and the two clamping blocks 15 position the lithium-ion battery 13. The second motor 6 drives the stud 7 to rotate, and the stud 7 drives the two threaded blocks 8 to move. The threaded block 8 drives the electric telescopic rod 9 to move, thereby adjusting the distance between the two electrode tabs 12. The electric telescopic rod 9 controls the electrode tab 12 to descend, so that the electrode tab 12 contacts the lithium-ion battery 13. The electrode tab 12 and the lithium-ion battery 13 are relatively fixed, which is convenient for positioning the electrode tab 12 on the lithium-ion battery 13;

[0034] Adjust the electrode tab angle stage:

[0035] When there is a certain inclination angle between the electrode sheet pole ear 12 and the lithium ion battery 13, the first motor 401 is started, the first motor 401 drives the disk 402 to rotate, the disk 402 drives the connecting rod 403 to move, the connecting rod 403 drives the slider 2 404 to slide, the slider 2 404 drives the frame 405 to move while sliding on the outer wall of the frame 405, the frame 405 drives the rotating rod 406 to move, and when the disk 402 drives the connecting rod 403 to move, the front and rear positions of the connecting rod 403 move, and then the rotating rod 406 can swing back and forth during movement, the rotating rod 406 drives the second bracket 5 to move, and then drives the electrode sheet pole ear 12 to move, and the inclination angle of the electrode sheet pole ear 12 is adjusted. When welding, it is convenient to adjust the inclination angle of the electrode sheet pole ear 12, so that the electrode sheet pole ear 12 and the lithium ion battery 13 are relatively parallel and closely fitted, and the welding mechanism 16 is used to weld the electrode sheet pole ear 12 and the lithium ion battery 13. Example 2

[0036] See attached Figure 1-6 : In this embodiment, a lithium-ion battery electrode tab welding device, the positioning mechanism 3 also includes a guide block 3a1 and a guide rod 3a2, the guide block 3a1 is fixedly connected to the end of the vertical rod 303, the vertical rod 303 drives the guide block 3a1 to move, the guide block 3a1 is slidably connected to the outer wall of the guide rod 3a2, the guide block 3a1 slides on the outer wall of the guide rod 3a2, and the guide rod 3a2 is fixedly connected to the inside of the first bracket 301;

[0037] Through the cooperation between the guide block 3a1 and the guide rod 3a2, the vertical rod 303 drives the guide block 3a1 to move when moving, and the guide block 3a1 slides on the outer wall of the guide rod 3a2. The guide block 3a1 and the guide rod 3a2 guide the movement of the vertical rod 303.

[0038] Working principle:

[0039] When the vertical rod 303 moves, it drives the guide block 3a1 to move. The guide block 3a1 slides on the outer wall of the guide rod 3a2. The guide block 3a1 and the guide rod 3a2 guide the movement of the vertical rod 303.

[0040] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A lithium-ion battery electrode tab welding device, comprising a base (1) and a top plate (2), wherein the base (1) is fixedly connected to the top plate (2) via a support, and characterized in that: A rotating mechanism (4) is provided below the top plate (2), a second bracket (5) is provided below the top plate (2), a second motor (6) is fixedly connected to the outer wall of the second bracket (5), a stud (7) is fixedly connected to the output shaft of the second motor (6), two threaded blocks (8) are threadedly connected to the outer wall of the stud (7), an electric telescopic rod (9) is fixedly connected below the threaded block (8), a positioning mechanism (3) is provided below the electric telescopic rod (9), a moving block (10) is fixedly connected to the upper surface of the threaded block (8), and the moving block (10) is slidably connected to the outer wall of the cross bar (11).

2. A lithium-ion battery electrode tab welding device according to claim 1, characterized in that: The positioning mechanism (3) comprises a first bracket (301), the first bracket (301) being fixedly connected to the bottom of the electric telescopic rod (9), an electric push rod (302) being fixedly connected inside the first bracket (301), an output end of the electric push rod (302) being fixedly connected to a vertical rod (303), an outer wall of the vertical rod (303) being rotatably connected to two support rods (304) via a pin shaft, an end of the support rod (304) being rotatably connected to a slider 1 (305) via a pin shaft, an outer wall of the two sliders 1 (305) being slidably connected to the first bracket (301), an outer wall of the slider 1 (305) being fixedly connected to a moving block 2 (306), and an outer wall of the moving block 2 (306) being fixedly connected to a clamping block 2 (307).

3. A lithium-ion battery electrode tab welding device according to claim 1, characterized in that: The rotating mechanism (4) comprises a first motor (401), the first motor (401) being fixedly connected to the upper surface of the top plate (2), the output shaft of the first motor (401) being fixedly connected to a disk (402), the disk (402) being rotationally connected to the top plate (2) via a bearing, the inside of the disk (402) being slidably connected to a connecting rod (403), the end of the connecting rod (403) being fixedly connected to a second slider (404), the second slider (404) being slidably connected to an outer wall of a frame (405), the frame (405) being fixedly connected to an outer wall of a rotating rod (406), the outer walls at both ends of the rotating rod (406) being rotationally connected to the top plate (2) via bearings, and the outer wall of the rotating rod (406) being fixedly connected to a second bracket (5).

4. A lithium-ion battery electrode tab welding device according to claim 1, characterized in that: Both ends of the crossbar (11) are fixedly connected to the second bracket (5), and a welding mechanism (16) is fixedly connected to the top of the base (1).

5. A lithium-ion battery electrode tab welding device according to claim 2, characterized in that: The outer walls of the two clamping blocks (307) are fitted with electrode tabs (12).

6. A lithium-ion battery electrode tab welding device according to claim 1, characterized in that: A lithium-ion battery (13) is placed on the upper surface of the base (1).

7. A lithium-ion battery electrode tab welding device according to claim 1, characterized in that: Two cylinders (14) are fixedly connected to the upper surface of the base (1), and a clamping block 1 (15) is fixedly connected to the output end of the cylinder (14).

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