Lithium battery cover plate welding device

Abstract

The utility model discloses a lithium battery cover plate welding device which comprises a base and a plurality of lithium batteries, battery cover plates are arranged on the lithium batteries, a supporting frame is installed on one side of the base, a laser welding head is installed on the supporting frame, and clamping seats are movably installed on the lithium batteries. When in use, a plurality of lithium batteries can be placed in the mounting groove for stacking, the stacked lithium batteries are clamped and positioned by utilizing the positioning clamping plate and the movable clamping plate, and then the positions of the lithium batteries can be adjusted by pushing and pulling the clamping seat front and back and left and right, so that welding points of battery cover plates can be accurately aligned to the lower part of a laser welding head; and the positioning clamping plate and the movable clamping plate can be adjusted and adapted according to the number and the size of the placed lithium batteries, and the horizontal position of the clamping seat can be adjusted according to the number of the sizes of the lithium batteries, so that the lithium battery welding device can be suitable for welding the lithium batteries of various specifications.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery welding technology, specifically to a lithium battery cover plate welding device. Background Technology

[0002] The lithium battery cover is an important component of the lithium battery structure. It is usually composed of a combination of various components, including the cover body, positive and negative terminals, liquid injection holes, and explosion-proof valves (plates).

[0003] Chinese Patent Publication No. CN220388254U discloses a lithium battery cover welding device, including a base and a welding mechanism. The base has a placement groove on its top outer wall, and a pressing plate is slidably disposed inside the placement groove. An mounting plate is fixedly connected to the top outer wall of the base, and a first connecting groove is formed on one side of the mounting plate. A connecting plate is slidably connected to the inner wall of the first connecting groove. This invention allows lithium batteries to be stably placed in the placement groove. The pressing plate, in conjunction with the mounting plate, connecting plate, two movable grooves, the first connecting groove, and two first springs, can push the pressing plate to the left until the lithium battery is completely placed in the placement groove, with the right side of the lithium battery contacting the inner wall of one side of the placement groove. This achieves a stable positioning effect for the lithium battery. Furthermore, it can stably place lithium batteries of different sizes in the placement groove, making it practical and suitable for widespread promotion and use.

[0004] In the aforementioned prior art, the lithium battery can be clamped and positioned using the extrusion plate and the limiting plate, and then the lithium battery cover plate can be placed on top of the battery for welding, which improves the stability of the battery during welding. However, the welding mechanism used for welding in this device can only be adjusted in one direction, and the welding points are different for batteries of different sizes. This device is not convenient for adjusting the welding points according to the different battery sizes. Moreover, when the cover plate is placed on the battery, there is a lack of effective positioning measures, and the cover plate is prone to displacement between itself and the battery during the welding process. Therefore, a lithium battery cover plate welding device is needed to meet people's needs. Utility Model Content

[0005] The purpose of this invention is to provide a lithium battery cover welding device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery cover welding device, comprising a base and a plurality of lithium batteries, wherein a battery cover is provided on the lithium battery, a support frame is installed on one side of the base, a laser welding head is installed on the support frame, a clamp is movably installed on the lithium battery, a clamping and positioning structure and a sliding adjustment structure are connected to the clamp, a plurality of adjusting slides are connected to the clamping and positioning structure, and a pressing structure is connected to the adjusting slides.

[0007] Preferably, the clamping and positioning structure includes a mounting groove, which is formed inside the clamping seat. The lithium battery is movably mounted in the mounting groove. A positioning clamping plate is slidably mounted inside the mounting groove. A movable guide rod is mounted on one side of the positioning clamping plate. The movable guide rod is slidably mounted inside the clamping seat. A fixed guide rod is mounted on one side of the clamping seat. A baffle is mounted on one end of the fixed guide rod. The movable clamping plate is slidably mounted on the fixed guide rod. Springs are movably mounted on both the movable guide rod and the movable clamping plate. One end of each spring is mounted on one side of the baffle and the inner wall of the mounting groove, respectively. The other ends of each spring are mounted on one side of the clamping seat and the movable clamping plate, respectively.

[0008] Preferably, the sliding adjustment structure includes a U-shaped frame, which is slidably mounted on the base, and the clamp is slidably mounted on the inner wall of the U-shaped frame.

[0009] Preferably, the inner walls on both sides of the U-shaped frame are provided with guide grooves, and guide sliders are slidably installed in both guide grooves. The two guide sliders are respectively installed on both sides of the clamp. The inner wall of the base is provided with a T-shaped groove, and a T-shaped slider is slidably installed in the T-shaped groove. The T-shaped slider is installed on the bottom side of the U-shaped frame.

[0010] Preferably, the extrusion structure includes an L-shaped pressure plate, which is slidably mounted on one side of the adjusting slide. One end of the L-shaped pressure plate is in contact with the surface of the battery cover. A screw hole is provided inside the L-shaped pressure plate, and a screw is threaded into the screw hole. The screw is rotatably mounted above the adjusting slide, and the adjusting slide is slidably mounted on the movable clamping plate.

[0011] Preferably, the adjusting slide has a T-shaped guide groove inside, and a T-shaped strip is slidably installed in the T-shaped guide groove. The T-shaped strip is installed above the movable clamping plate.

[0012] Preferably, the L-shaped pressure plate has a vertical groove inside, and a vertical guide block is slidably installed in the vertical groove. The vertical guide block is installed on one side of the adjusting slide.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In use, several lithium batteries can be placed in the mounting slot and stacked. The stacked lithium batteries are clamped and positioned by the positioning clamp and the movable clamp. After completion, the position of the lithium batteries can be adjusted by pushing and pulling the clamps in the front, back, left and right directions so that the welding point of the battery cover can be accurately aligned with the bottom of the laser welding head for welding operation. The positioning clamp and the movable clamp can be adjusted according to the number and size of the lithium batteries placed. In addition, the horizontal position of the clamp can also be adjusted according to the size and number of lithium batteries, so as to adapt to the welding of lithium batteries of various specifications.

[0015] (2) After placing the battery cover on the lithium battery, the adjusting slide can be pushed so that one end of the L-shaped pressure plate is above the battery cover. Then, rotating the screw can control the L-shaped pressure plate to descend and press on the battery cover, pressing the battery cover tightly on the top of the lithium battery. This ensures that the battery cover will not shift off the lithium battery during the welding process, improving the stability of the battery cover during welding. The L-shaped pressure plate can be horizontally adjusted and can move with the movable clamp to adapt to battery covers of different positions or sizes. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a lithium battery cover welding device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the clamp and U-shaped frame of a lithium battery cover welding device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the positioning clamp structure of a lithium battery cover welding device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the L-shaped pressure plate of the lithium battery cover welding device proposed in this utility model.

[0020] In the diagram: 100, base; 101, lithium battery; 102, battery cover; 103, support frame; 104, laser welding head; 200, clamp; 201, mounting groove; 202, positioning clamp; 203, movable guide rod; 204, fixed guide rod; 205, movable clamp; 206, spring; 207, baffle; 300, U-shaped frame; 301, guide groove; 302, guide slider; 303, T-slot; 304, T-slot; 400, adjusting slide; 401, L-shaped pressure plate; 402, screw; 403, screw hole; 404, T-shaped guide groove; 405, T-strip; 406, vertical groove; 407, vertical guide block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: a lithium battery cover welding device, including a base 100 and a plurality of lithium batteries 101, with a battery cover 102 disposed on the lithium batteries 101; a support frame 103 is installed on one side of the base 100, and a laser welding head 104 is installed on the support frame 103; a clamping seat 200 is movably installed on the lithium batteries 101, and a clamping positioning structure and a sliding adjustment structure are connected to the clamping positioning structure; a plurality of adjusting slides 400 are connected to the clamping positioning structure, and a pressing structure is connected to the adjusting slides 400. In use, a plurality of lithium batteries 101 can be placed in the clamping seat 200 and stacked, and then the clamping positioning structure is used to clamp the lithium batteries 101. The welding position of the lithium batteries 101 can be adjusted by the sliding adjustment structure, which can easily adjust the welding point of the battery cover 102 to below the laser welding head 104 for welding operation. The pressing structure can press the battery cover 102 down during welding to prevent its position from shifting during welding.

[0023] Furthermore, the clamping and positioning structure includes a mounting groove 201, which is formed inside the clamping base 200. The lithium battery 101 is movably mounted in the mounting groove 201. A positioning clamping plate 202 is slidably mounted inside the mounting groove 201. A movable guide rod 203 is mounted on one side of the positioning clamping plate 202 and is slidably mounted inside the clamping base 200. A fixed guide rod 204 is mounted on one side of the clamping base 200. A baffle 207 is mounted on one end of the fixed guide rod 204. A movable clamping plate 205 is slidably sleeved on the fixed guide rod 204. Springs 206 are movably sleeved on both the movable guide rod 203 and the movable clamping plate 205. One end of each spring 206 is mounted on the baffle 207. On one side of 7 and the inner wall of the mounting groove 201, the other ends of two springs 206 are respectively installed on one side of the clamp 200 and the movable clamp 205. Pulling the movable clamp 205 causes it to slide on the fixed guide rod 204 and compress the corresponding spring 206. Then, pulling the movable guide rod 203 causes the positioning clamp 202 to move and squeeze the corresponding spring 206, adjusting the space in the mounting groove 201. After that, the lithium battery 101 is placed in the mounting groove 201 and stacked. Then, the movable guide rod 203 and the movable clamp 205 are released. At this time, the corresponding spring 206 will push the positioning clamp 202 and the movable clamp 205 to move and reset and press on the surface of the lithium battery 101.

[0024] Furthermore, the sliding adjustment structure includes a U-shaped frame 300, which is slidably mounted on the base 100, and a clamp 200 is slidably mounted on the inner wall of the U-shaped frame 300. By pushing or pulling the clamp 200 back and forth or left and right, it can slide on the U-shaped frame 300 or drive the U-shaped frame 300 to move, thereby adjusting the position of the battery.

[0025] Furthermore, guide grooves 301 are provided on both inner walls of the U-shaped frame 300, and guide sliders 302 are slidably installed in both guide grooves 301. The two guide sliders 302 are respectively installed on both sides of the clamp 200. A T-shaped groove 303 is provided on the inner wall of the base 100, and a T-shaped slider 304 is slidably installed in the T-shaped groove 303. The T-shaped slider 304 is installed on the bottom side of the U-shaped frame 300. When the clamp 200 is pushed and pulled back and forth, it can drive the guide slider 302 to slide in the guide grooves 301 on the U-shaped frame 300. When pushed and pulled left and right, the clamp 200 can drive the U-shaped frame 300 to move left and right, so that the U-shaped frame 300 drives the T-shaped slider 304 to slide horizontally in the T-shaped groove 303.

[0026] Example 2: As Figure 1-4 To prevent the battery cover 102 from shifting during welding, a pressing structure is provided on the adjusting slide 400. This pressing structure includes an L-shaped pressure plate 401, which is slidably mounted on one side of the adjusting slide 400. One end of the L-shaped pressure plate 401 contacts the surface of the battery cover 102. A screw hole 403 is provided inside the L-shaped pressure plate 401, and a screw 402 is threaded into the screw hole 403. The screw 402 is rotatably mounted above the adjusting slide 400. The adjusting slide 400 is slidably mounted on the movable clamping plate 205. A T-shaped guide groove 404 is provided inside the adjusting slide 400, and the slide moves within the T-shaped guide groove 404. A T-shaped strip 405 is installed above the movable clamping plate 205. A vertical groove 406 is provided inside the L-shaped pressure plate 401. A vertical guide block 407 is slidably installed in the vertical groove 406. The vertical guide block 407 is installed on one side of the adjusting slide 400. The adjusting slide 400 is pushed according to the position of the battery cover 102 so that one end of the L-shaped pressure plate 401 is above the battery cover 102. Then, the screw 402 is rotated to drive the L-shaped pressure plate 401 to move up and down, so that the L-shaped pressure plate 401 presses on the battery cover 102, preventing the position of the battery cover 102 on the lithium battery 101 from shifting. The remaining features are the same as in Embodiment 1.

[0027] The working principle is as follows: When in use, pull the movable clamp 205, causing it to slide on the fixed guide rod 204 and compress the corresponding spring 206. A baffle 207 prevents the movable clamp 205 from detaching from the fixed guide rod 204. Then, pull the movable guide rod 203 to move the positioning clamp 202 and compress the corresponding spring 206. Adjust the space within the mounting slot 201 to accommodate the required number of lithium batteries 101. Afterward, place the lithium batteries 101 in the mounting slot 201 and stack them. Then, release the movable guide rod 203 and the movable clamp 205. At this time, the corresponding spring 206 will push the positioning clamp 202 and the movable clamp 205 to move and reset, pressing them against the surface of the lithium batteries 101. Figure 3The lithium battery 101 is clamped and fixed in place. Then, the battery cover 102 is placed on top of the lithium battery 101. The adjusting slide 400 is pushed according to the position of the battery cover 102, causing it to slide on the T-shaped strip 405 via the T-shaped guide groove 404. This positions one end of the L-shaped pressure plate 401 above the battery cover 102. The screw 402 is then rotated. When the screw 402 rotates, it engages with the screw hole 403, causing the L-shaped pressure plate 401 to move up and down. This allows the L-shaped pressure plate 401 to move along the direction of the vertical guide block 407 via the vertical slide groove 406, thus restricting the direction of movement of the L-shaped pressure plate 401. The descending L-shaped pressure plate 401 can press against... To prevent the battery cover 102 from shifting on the lithium battery 101 and to position the battery cover 102, the clamp 200 can be pushed and pulled forward or backward or left and right to move the battery position. Pushing and pulling the clamp 200 forward or backward will cause it to slide the guide slider 302 in the guide groove 301 on the U-shaped frame 300, thereby adjusting the clamp 200 forward and backward. Pushing and pulling left and right will cause the clamp 200 to move the U-shaped frame 300 left and right, causing the U-shaped frame 300 to slide the T-shaped slider 304 horizontally in the T-shaped groove 303, thereby adjusting the position of the battery cover 102 so that the welding position of the battery cover 102 is aligned with the bottom of the laser welding head 104 for welding operation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery cover welding device, comprising a base (100) and a plurality of lithium batteries (101), wherein a battery cover (102) is disposed on the lithium battery (101); characterized in that: A support frame (103) is installed on one side of the base (100), a laser welding head (104) is installed on the support frame (103), a clamp (200) is movably installed on the lithium battery (101), a clamping and positioning structure and a sliding adjustment structure are connected to the clamp (200), a number of adjusting slides (400) are connected to the clamping and positioning structure, and a pressing structure is connected to the adjusting slides (400).

2. The lithium battery cover welding device according to claim 1, characterized in that: The clamping and positioning structure includes a mounting groove (201) formed inside the clamping base (200). The lithium battery (101) is movably mounted in the mounting groove (201). A positioning clamping plate (202) is slidably mounted inside the mounting groove (201). A movable guide rod (203) is mounted on one side of the positioning clamping plate (202) and is slidably mounted inside the clamping base (200). A fixed guide rod (204) is mounted on one side of the clamping base (200). A baffle (207) is installed at one end of the fixed guide rod (204). A movable clamping plate (205) is slidably sleeved on the fixed guide rod (204). Springs (206) are movably sleeved on both the movable guide rod (203) and the movable clamping plate (205). One end of each spring (206) is installed on one side of the baffle (207) and the inner wall of the mounting groove (201), respectively. The other ends of each spring (206) are installed on one side of the clamping seat (200) and the movable clamping plate (205), respectively.

3. The lithium battery cover welding device according to claim 1, characterized in that: The sliding adjustment structure includes a U-shaped frame (300), which is slidably mounted on the base (100), and a clamp (200) is slidably mounted on the inner wall of the U-shaped frame (300).

4. The lithium battery cover welding device according to claim 3, characterized in that: The inner walls of both sides of the U-shaped frame (300) are provided with guide grooves (301), and guide sliders (302) are slidably installed in both guide grooves (301). The two guide sliders (302) are respectively installed on both sides of the clamp (200). The inner wall of the base (100) is provided with a T-shaped groove (303), and a T-shaped slider (304) is slidably installed in the T-shaped groove (303). The T-shaped slider (304) is installed on the bottom side of the U-shaped frame (300).

5. The lithium battery cover welding device according to claim 1, characterized in that: The extrusion structure includes an L-shaped pressure plate (401), which is slidably mounted on one side of the adjusting slide (400). One end of the L-shaped pressure plate (401) is in contact with the surface of the battery cover (102). A screw hole (403) is provided inside the L-shaped pressure plate (401), and a screw (402) is installed in the screw hole (403) with internal threads. The screw (402) is rotatably mounted above the adjusting slide (400), and the adjusting slide (400) is slidably mounted on the movable clamping plate (205).

6. The lithium battery cover welding device according to claim 1, characterized in that: The adjusting slide (400) has a T-shaped guide groove (404) inside, and a T-shaped strip (405) is slidably installed in the T-shaped guide groove (404). The T-shaped strip (405) is installed above the movable clamping plate (205).

7. The lithium battery cover welding device according to claim 5, characterized in that: The L-shaped pressure plate (401) has a vertical groove (406) inside, and a vertical guide block (407) is slidably installed in the vertical groove (406). The vertical guide block (407) is installed on one side of the adjusting slide (400).

Images