Lithium ion battery welding tool

Abstract

The utility model provides a lithium ion battery welding tool, which belongs to the technical field of battery welding and comprises a support, a workbench is arranged above the support, two groups of clamping components for fixing lithium ion batteries with different sizes and shapes for welding are arranged at the top of the workbench, and the two groups of clamping components are symmetrically arranged. Through the arrangement of the clamping assembly, during use, the multiple sets of flexible pins can make contact with the surface of the lithium ion battery, according to the shape of the surface of the lithium ion battery, the multiple sets of flexible pins can retract towards the interior of the box body in a matched mode under the action of the pressure of the surface of the battery, and in the process, springs connected with the other ends of the flexible pins can be compressed; and after the lithium ion battery is taken out, the spring automatically resets under the action of self elasticity, and the flexible pin is pushed to return to the initial position, so that the next use is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of battery welding technology, and more specifically, to a lithium-ion battery welding fixture. Background Technology

[0002] With the increasing global emphasis on low-carbon, environmentally friendly, and sustainable development, new energy technologies are gradually becoming a key factor in promoting social progress and industrial transformation. Especially in fields such as electric vehicles, renewable energy storage systems, and portable consumer electronics, lithium-ion batteries, as a green, environmentally friendly, and highly efficient energy storage method, are gradually becoming mainstream. Lithium-ion batteries not only have advantages such as high voltage, high energy density, long lifespan, and light weight, but they can also provide efficient and stable power supply in many application scenarios to meet the growing energy demands of modern society. At the same time, with the widespread application of lithium batteries, people's technical requirements for lithium batteries are constantly increasing. In particular, welding technology plays a particularly important role in the battery manufacturing process. As one of the core processes in lithium battery production, welding is directly related to the battery's performance, safety, and lifespan.

[0003] The existing technology still has the following drawbacks:

[0004] Existing equipment is designed for a single lithium-ion battery model and cannot adapt to batteries of different sizes and shapes. When welding lithium-ion batteries of different shapes, the fixtures need to be adjusted manually and constantly debugged, which wastes time. The tooling has poor versatility and flexibility.

[0005] Therefore, we have made improvements to this and proposed a lithium-ion battery welding fixture. Utility Model Content

[0006] The purpose of this invention is to address the problem of poor tooling versatility and incompatibility with lithium-ion batteries of different shapes.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] Lithium-ion battery welding fixtures are designed to improve the above-mentioned problems.

[0009] The specific details of this utility model are as follows:

[0010] The device includes a support frame, a workbench on top of the support frame, two sets of clamping assemblies on the top of the workbench for welding lithium-ion batteries of different sizes and shapes, the two sets of clamping assemblies being symmetrically arranged, a maintenance assembly on one side of each clamping assembly for easy maintenance, a spacing adjustment assembly at the bottom of each clamping assembly for adjusting the distance between the two sets of clamping assemblies, a lateral adjustment assembly on the outer wall of the support frame for adjusting the welding position during lithium-ion welding, a vertical adjustment assembly on one side of the lateral adjustment assembly for adjusting the welding height, and a welding assembly for performing welding operations at the end of the vertical adjustment assembly.

[0011] The two sets of clamping components include a box located above the worktable. The box has a hollow structure. Multiple sets of flexible pins are provided on one side of the box. One end of each set of flexible pins penetrates the side wall of the box and extends into the interior of the box. A limiting ring is fixedly installed on the inner wall of the box. The limiting ring is sleeved on the outside of the multiple sets of flexible pins. A spring is fixedly connected to the other end of each set of flexible pins.

[0012] As a preferred technical solution of this utility model, the maintenance component includes a cover plate that is threadedly connected to the outer wall of the box. The inner bottom wall of the cover plate is fixedly connected to the end of the spring away from the flexible pin. A groove is provided on the outer wall of the box corresponding to the installation position of the cover plate. A rubber pad is fixedly connected to the end of the multiple sets of flexible pins that contact the lithium-ion battery.

[0013] As a preferred technical solution of this utility model, the spacing adjustment component includes two sets of sliders that are bolted to the bottom of the box body. The sliders are symmetrically arranged, and a concave plate is slidably connected to the bottom of the slider. A first servo motor is fixedly installed on one side of the concave plate. A bidirectional screw is installed at the output end of the first servo motor. The bidirectional screw is fixedly installed on the inner side of the concave plate. Both sets of sliders are slidably connected to the bidirectional screw through threads.

[0014] As a preferred technical solution of this utility model, the lateral adjustment component includes a second servo motor fixedly installed on the side wall of the bracket, and a first screw is installed at the output end of the second servo motor. A first movable seat is slidably connected to the first screw via a thread.

[0015] As a preferred technical solution of this utility model, the vertical adjustment component includes a fixed seat that is fixedly connected to the outer wall of the first movable seat by bolts, a second movable seat that is slidably connected to one side of the fixed seat, a third servo motor that is fixedly installed at one end of the second movable seat, and a second screw that is fitted to the output end of the third servo motor. The second screw is slidably connected to the fixed seat by threads.

[0016] As a preferred technical solution of this utility model, the welding assembly includes an L-shaped plate that is fixedly connected to the bottom of the second movable seat by bolts, and a welding head is fixedly installed on the outer wall of the L-shaped plate.

[0017] As a preferred technical solution of this utility model, a display panel is bolted to the side wall of the bracket, and a control button is fixedly installed above the display panel.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] In the solution of this utility model:

[0020] 1. With the clamping components in place, multiple sets of flexible pins will contact the surface of the lithium-ion battery during use. Based on the shape of the lithium-ion battery surface, the multiple sets of flexible pins will retract into the box under the pressure of the battery surface. During this process, the spring connected to the other end of the flexible pin will be compressed. When the lithium-ion battery is removed, the spring will automatically reset under its own elasticity, pushing the flexible pin back to its initial position for easy use next time.

[0021] 2. With the included maintenance components, when a spring inside the housing is damaged, it is not necessary to disassemble the entire housing. Simply locate the cover plate corresponding to the damaged spring, rotate the cover plate to unscrew it from the groove in the housing, and the damaged spring can be easily removed and replaced with a new one. The operation is simple and quick, greatly improving maintenance efficiency. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the lithium-ion battery welding fixture provided by this utility model;

[0023] Figure 2 A schematic diagram of the clamping assembly structure of the lithium-ion battery welding fixture provided by this utility model;

[0024] Figure 3 A schematic diagram of the spacing adjustment component of the lithium-ion battery welding fixture provided by this utility model;

[0025] Figure 4 A side view of the lithium-ion battery welding fixture provided by this utility model;

[0026] Figure 5 This is a schematic diagram of the back structure of the lithium-ion battery welding fixture provided by this utility model.

[0027] The image shows:

[0028] 1. Support; 2. Workbench; 3. Clamping assembly; 301. Box body; 302. Flexible pin; 303. Limiting ring; 304. Spring; 4. Maintenance assembly; 401. Cover plate; 402. Rubber pad; 5. Spacing adjustment assembly; 501. Slider; 502. Concave plate; 503. First servo motor; 504. Bidirectional screw; 6. Horizontal adjustment assembly; 601. Second servo motor; 602. First screw; 603. First moving seat; 7. Vertical adjustment assembly; 701. Fixed seat; 702. Second moving seat; 703. Third servo motor; 704. Second screw; 8. Welding assembly; 801. L-shaped plate; 802. Welding head; 9. Display panel; 10. Control buttons. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] like Figure 1 As shown, this embodiment proposes a lithium-ion battery welding fixture, including a support 1, a workbench 2 above the support 1, two sets of clamping components 3 for welding lithium-ion batteries of different sizes and shapes are set on the top of the workbench 2, the two sets of clamping components 3 are symmetrically arranged, a maintenance component 4 is set on one side of the clamping components 3 to facilitate maintenance of the clamping components 3, a spacing adjustment component 5 is set on the bottom of the clamping components 3 to adjust the distance between the two sets of clamping components 3, a horizontal adjustment component 6 for adjusting the welding position during lithium-ion welding is set on the outer wall of the support 1, a vertical adjustment component 7 for adjusting the welding height is set on one side of the horizontal adjustment component 6, and a welding component 8 for performing welding operations is set at the end of the vertical adjustment component 7.

[0034] like Figure 2 and Figure 4 As shown, the two sets of clamping components 3 include a box 301 located above the workbench 2. The box 301 has a hollow structure. Multiple sets of flexible pins 302 are provided on one side of the box 301, which will contact the surface of the lithium-ion battery. One end of each set of flexible pins 302 penetrates the side wall of the box 301 and extends into the interior of the box 301. A limiting ring 303 is fixedly installed on the inner wall of the box 301. The limiting ring 303 is sleeved on the outside of the multiple sets of flexible pins 302 to limit the extension and retraction of the flexible pins 302. The other end of each set of flexible pins 302 is fixedly connected to a spring 304, which plays a buffering role. During use, multiple sets of flexible pins 302 will contact the surface of the lithium-ion battery. According to the shape of the lithium-ion battery surface, the multiple sets of flexible pins 302 will retract into the box 301 under the pressure of the battery surface. During this process, the spring 304 connected to the other end of the flexible pin 302 will be compressed. When the lithium-ion battery is removed, the spring 304 will automatically reset under its own elasticity, pushing the flexible pin 302 back to the initial position for easy use next time.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, the maintenance component 4 includes a cover plate 401 that is threadedly connected to the outer wall of the housing 301. The inner bottom wall of the cover plate 401 is fixedly connected to the end of the spring 304 away from the flexible pin 302. A groove is provided on the outer wall of the housing 301 corresponding to the installation position of the cover plate 401. Rubber pads 402 are fixedly connected to the ends of the multiple sets of flexible pins 302 that contact the lithium-ion battery. In use, when a spring 304 inside the housing 301 is damaged, it is not necessary to disassemble the entire housing 301. Simply locate the cover plate 401 corresponding to the damaged spring 304, rotate the cover plate 401 to unscrew it from the groove in the housing 301, and the damaged spring 304 can be easily removed and replaced with a new spring 304. The operation is simple and quick, greatly improving maintenance efficiency.

[0036] like Figure 3 As shown, the spacing adjustment assembly 5 includes two sets of sliders 501 bolted to the bottom of the housing 301. The sliders 501 are symmetrically arranged. A concave plate 502 is slidably connected to the bottom of each slider 501. A first servo motor 503 is fixedly mounted on one side of the concave plate 502. A bidirectional screw 504 is mounted on the output end of the first servo motor 503. The bidirectional screw 504 is fixedly mounted on the inner side of the concave plate 502. Both sets of sliders 501 are threadedly slidably connected to the bidirectional screw 504. When the first servo motor 503 is started, the bidirectional screw 504 is driven to rotate, and the spacing between the two sets of sliders 501 changes accordingly. When the spacing between the sliders 501 decreases, the spacing of the housing 301 at the top of the sliders 501 also decreases synchronously. Multiple sets of flexible pins 302 contact the surface of the part, completing the clamping action.

[0037] like Figure 4 As shown, the lateral adjustment assembly 6 includes a second servo motor 601 fixedly mounted on the side wall of the bracket 1. A first screw 602 is mounted on the output end of the second servo motor 601, and a first movable seat 603 is slidably connected to the first screw 602 via a thread. When the second servo motor 601 is started, it drives the first screw 602 to rotate, thereby moving the first movable seat 603 on the first screw 602 to adapt to different welding requirements.

[0038] like Figure 4 and Figure 5 As shown, the vertical adjustment assembly 7 includes a fixed base 701 that is bolted to the outer wall of the first movable base 603. A second movable base 702 is slidably connected to one side of the fixed base 701. A third servo motor 703 is fixedly mounted on one end of the second movable base 702. A second screw 704 is fitted onto the output end of the third servo motor 703. The second screw 704 is slidably connected to the fixed base 701 via a thread. When the welding height needs to be adjusted, the third servo motor 703 is activated, driving the second screw 704 to rotate, which in turn moves the second movable base 702 vertically up and down, thus adjusting the welding height for ease of use.

[0039] like Figure 4 As shown, the welding assembly 8 includes an L-shaped plate 801 that is bolted to the bottom of the second movable seat 702, and a welding head 802 is fixedly mounted on the outer wall of the L-shaped plate 801. By adjusting the horizontal and vertical positions of the welding machine, the welding head 802 can be moved to the position where welding is required for precise welding operations.

[0040] like Figure 1 As shown, a display panel 9 is bolted to the side wall of the bracket 1, and a control button 10 is fixedly installed above the display panel 9. The device can be adjusted through the display panel 9 and the control button 10 to facilitate welding operations.

[0041] Specifically, when using this lithium-ion battery welding fixture: (e.g.) Figure 1 , Figure 2 and Figure 4As shown, the lithium-ion battery to be welded is placed between the housings 301 on the worktable 2. The first servo motor 503 is started, driving the bidirectional screw 504 to rotate. The distance between the two sets of sliders 501 changes accordingly. When the distance between the sliders 501 decreases, the distance between the housings 301 at the top of the sliders 501 also decreases simultaneously. Multiple sets of flexible pins 302 will contact the surface of the lithium-ion battery. According to the shape of the lithium-ion battery surface, the multiple sets of flexible pins 302 will retract into the housing 301 under the pressure of the battery surface. During this process, the spring 304 connected to the other end of the flexible pin 302 will be compressed until the lithium-ion battery is completely clamped. When adjusting the welding position, as... Figure 4 and Figure 5 As shown, starting the second servo motor 601 drives the first screw 602 to rotate, which in turn moves the first movable seat 603 on the first screw 602. Starting the third servo motor 703 drives the second screw 704 to rotate, which in turn moves the second movable seat 702 up and down in the vertical direction, thereby adjusting the welding height and achieving precise adjustment of the welding position.

[0042] All technical features in this embodiment can be freely combined according to actual needs.

[0043] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A lithium-ion battery welding fixture, comprising a support (1), characterized in that, A workbench (2) is provided above the support (1). Two sets of clamping components (3) for welding fixed lithium-ion batteries are provided on the top of the workbench (2). The two sets of clamping components (3) are arranged symmetrically. A maintenance component (4) is provided on one side of the clamping component (3) to facilitate maintenance of the clamping component (3). A spacing adjustment component (5) for adjusting the distance between the two sets of clamping components (3) is provided at the bottom of the clamping component (3). A horizontal adjustment component (6) for adjusting the welding position is provided on the outer wall of the support (1). A vertical adjustment component (7) for adjusting the welding height is provided on one side of the horizontal adjustment component (6). A welding component (8) for welding operations is provided at the end of the vertical adjustment component (7). The two sets of clamping components (3) include a box (301) located above the workbench (2). The box (301) is a hollow structure. A plurality of flexible pins (302) are provided on one side of the box (301). One end of each set of flexible pins (302) penetrates the side wall of the box (301) and extends into the interior of the box (301). A limiting ring (303) is fixedly installed on the inner wall of the box (301). The limiting ring (303) is sleeved on the outside of the plurality of flexible pins (302). A spring (304) is provided at the other end of each set of flexible pins (302).

2. The lithium-ion battery welding fixture according to claim 1, characterized in that, The maintenance component (4) includes a cover plate (401) that is threadedly connected to the outer wall of the housing (301). The inner bottom wall of the cover plate (401) is fixedly connected to the end of the spring (304) away from the flexible pin (302). The outer wall of the housing (301) is provided with a groove corresponding to the installation position of the cover plate (401). The ends of the multiple sets of flexible pins (302) that contact the lithium-ion battery are all fixedly connected with rubber pads (402).

3. The lithium-ion battery welding fixture according to claim 1, characterized in that, The spacing adjustment component (5) includes a slider (501) that is bolted to the bottom of the housing (301). There are two sets of sliders (501) arranged symmetrically. A concave plate (502) is slidably connected to the bottom of the slider (501). A first servo motor (503) is fixedly installed on one side of the concave plate (502). A bidirectional screw (504) is installed at the output end of the first servo motor (503). The bidirectional screw (504) is fixedly installed on the inner side of the concave plate (502). Both sets of sliders (501) are slidably connected to the bidirectional screw (504) by threads.

4. The lithium-ion battery welding fixture according to claim 1, characterized in that, The lateral adjustment assembly (6) includes a second servo motor (601) fixedly installed on the side wall of the bracket (1). The output end of the second servo motor (601) is fitted with a first screw (602). A first movable seat (603) is slidably connected to the first screw (602) by a thread.

5. A lithium-ion battery welding fixture according to claim 1, characterized in that, The vertical adjustment assembly (7) includes a fixed seat (701) that is fixedly connected to the outer wall of the first movable seat (603) by bolts. A second movable seat (702) is slidably connected to one side of the fixed seat (701). A third servo motor (703) is fixedly installed at one end of the second movable seat (702). A second screw (704) is installed at the output end of the third servo motor (703). The second screw (704) is slidably connected to the fixed seat (701) by threads.

6. The lithium-ion battery welding fixture according to claim 1, characterized in that, The welding assembly (8) includes an L-shaped plate (801) that is bolted to the bottom of the second movable seat (702), and a welding head (802) is fixedly installed on the outer wall of the L-shaped plate (801).

7. A lithium-ion battery welding fixture according to claim 1, characterized in that, A display panel (9) is bolted to the side wall of the bracket (1), and a control button (10) is fixedly installed above the display panel (9).

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