A high-precision positioning and fixing device for battery tab welding

Abstract

This utility model discloses a high-precision positioning and fixing device for battery tab welding, including a jig plate with a product position. One side of the product position has a limiting edge, and the other side has a detachable limiting block. A cover plate is hinged to the jig plate, and the cover plate has a square groove. A pressure plate is movably mounted in the square groove. A spring is provided between the pressure plate and the bottom surface of the square groove. One end of the spring is connected to the bottom surface of the square groove, and the other end is connected to the pressure plate. The bottom and side surfaces of the battery cell are positioned against the limiting edge of the jig plate, and then the limiting block is used to limit the battery cell from the other side. Flipping the cover plate down allows the pressure plate to press down on the battery cell under its own weight, thus fixing it. The spring provides cushioning, allowing for the positioning of battery cells of different sizes with high accuracy and ease of operation.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, and in particular to a high-precision positioning and fixing device for battery tab welding. Background Technology

[0002] Tabs are a raw material used in lithium-ion polymer batteries. They are the metal conductors that lead the positive and negative electrodes out of the battery cell. Simply put, the tabs are the contact points during charging and discharging. When welding the battery cell and tabs, welding precision is crucial. Therefore, the battery cell and tabs need to be positioned and fixed for easy welding. Existing semi-automatic welding equipment requires manual placement of the battery cell on a turntable positioning device, followed by a tab feeding mechanism that places the tab at the welding point. The turntable then rotates to the welding machine for welding. However, different battery cell sizes vary, and existing positioning devices suffer from problems such as inability to adapt well to different cell sizes and easy cell misalignment, making them inconvenient to use. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides a high-precision positioning and fixing device for battery tab welding, which mainly solves the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows: A high-precision positioning and fixing device for battery tab welding includes a jig plate, the jig plate having a product position, a limiting edge on one side of the product position, and a detachable limiting block on the other side. The jig plate is hinged to a cover plate, the cover plate having a square groove, a pressure plate being movably disposed within the square groove, and a spring being disposed between the pressure plate and the bottom surface of the square groove, one end of the spring being connected to the bottom surface of the square groove, and the other end being connected to the pressure plate.

[0005] Furthermore, the limiting plate is provided with a first guide edge.

[0006] Furthermore, the fixture plate is provided with a plurality of threaded holes, and the limiting block is provided with strip holes.

[0007] Furthermore, the pressure plate has guide edges on both sides, and the cover plate has guide grooves that cooperate with the guide edges.

[0008] Furthermore, the fixture plate is provided with a first magnet, and the cover plate is provided with a second magnet that cooperates with the first magnet.

[0009] Furthermore, the fixture plate is provided with mounting holes, which are located at the four corners of the fixture plate.

[0010] Furthermore, the outermost layer of the pressure plate is provided with a soft rubber layer.

[0011] Furthermore, the fixture plate has rounded edges.

[0012] Furthermore, the fixture plate is provided with a material handling position.

[0013] Furthermore, the limiting block is provided with a second guide edge.

[0014] The beneficial effects of this utility model are as follows: (1) The bottom and side surfaces of the battery cell are positioned against the limiting edge of the fixture plate, and the limiting block is then used to limit the battery cell from the other side. The limiting block is flipped down so that the pressure plate presses the battery cell by its own weight to achieve fixation. The spring is used for buffering to reduce the collision of the battery cell. It can adapt to the positioning of battery cells of different sizes, and the positioning accuracy is high and it is convenient to operate. (2) The cover plate is fixed by the cooperation of the first magnet and the second magnet, so as to prevent the pressure plate from shaking during operation after pressing the cell, which would affect the accuracy. At the same time, the pressure plate is prevented from shaking, and the relative movement between the pressure plate and the cell will cause collisions that damage the cell and affect the quality of the cell. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a high-precision positioning and fixing device for battery tab welding in an embodiment of this application; Figure 2 This is a schematic diagram of a high-precision positioning and fixing device for battery tab welding in an embodiment of this application; Figure 3 This is a schematic diagram of a high-precision positioning and fixing device for battery tab welding in an embodiment of this application; Explanation of icon numbers: 1. Fixture plate; 2. Product position; 3. Limiting edge; 4. Limiting block; 5. Cover plate; 6. Square channel; 7. Pressure plate; 8. Spring; 9. First guide edge; 10. Threaded hole; 11. Strip hole; 12. Guide edge; 13. First magnet; 14. Second magnet; 15. Mounting hole; 16. Round edge; 17. Material picking position; 18. Second guide edge; 19. Battery cell. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0017] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0018] Example 1 See attached document Figure 1-3 This application provides a high-precision positioning and fixing device for battery tab welding, including a jig plate 1. The jig plate 1 has a product position 2 for placing a battery cell 19. One side of the product position 2 has a limiting edge 3, and the other side has a detachable limiting block 4, which facilitates adjustment and installation according to battery cells 19 of different sizes. The limiting plate and the limiting block 4 limit and position the two sides of the battery cell 19. The jig plate 1 is hinged to a cover plate 5. The cover plate 5 has a square groove 6. A pressure plate 7 is movably disposed in the square groove 6. A spring 8 is disposed between the pressure plate 7 and the bottom surface of the square groove 6. One end of the spring 8 is connected to the bottom surface of the square groove 6, and the other end is connected to the pressure plate 7. During operation, the bottom and side surfaces of the battery cell 19 are manually positioned against the limiting edge 3 of the fixture plate 1. Then, the limiting block 4 is used to limit the battery cell 19 from the other side, thus limiting its position. The cover plate 5 is flipped down, allowing the pressure plate 7 to press down on the battery cell 19 under its own weight for fixation. The spring 8 provides cushioning, which can accommodate the positioning of battery cells 19 of different sizes with high positioning accuracy and convenient operation. Preferably, the limiting plate has a first guide edge 9, which can guide the placement of the battery cell 19, facilitating quick placement and reducing guide collisions. Specifically, the fixture plate 1 has several threaded holes 10, and the limiting block 4 has a slot 11. The limiting block 4 is installed on the fixture plate 1 by screws and the threaded holes 10, and can be adjusted according to the size of the battery cell 19. Specifically, the pressure plate 7 has guide edges 12 on both sides, and the cover plate 5 has guide grooves that cooperate with the guide edges 12 to limit the movement of the pressure plate 7 and improve stability.

[0019] Example 2 See attached document Figure 1-3The difference between this embodiment and embodiment 1 is that the fixture plate 1 is provided with a first magnet 13, and the cover plate 5 is provided with a second magnet 14 that cooperates with the first magnet 13. The cover plate 5 is fixed by the cooperation of the first magnet 13 and the second magnet 14, so as to prevent the pressure plate 7 from shaking during operation after pressing the battery cell 19, which would affect the accuracy, or the pressure plate 7 shaking would cause relative movement between the pressure plate 7 and the battery cell 19, resulting in collision and damage to the battery cell 19, thus affecting the quality of the battery cell 19.

[0020] Specifically, the fixture plate 1 is provided with mounting holes 15, which are located at the four corners of the fixture plate 1, making it convenient to install the fixture plate 1 on the machine tool.

[0021] Specifically, the outermost part of the pressure plate 7 is provided with a soft rubber layer, which can be silicone, rubber, etc. The soft rubber layer provides cushioning to prevent damage to the battery cell 19. Specifically, all edges on the fixture plate 1 are rounded 16 to reduce the risk of damaging the battery cell 19 during operation.

[0022] Specifically, the fixture plate 1 is provided with a material handling position 17, which facilitates the placement and removal of the battery cell 19.

[0023] Specifically, the limiting block 4 is provided with a second guide edge 18, which can guide the placement of the battery cell 19, making it convenient to place the battery cell 19 quickly and reducing guide collisions.

[0024] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A high-precision positioning and fixing device for battery tab welding, characterized in that, The fixture includes a jig plate with a product position. One side of the product position has a limiting edge, and the other side has a detachable limiting block. The jig plate is hinged to a cover plate with a square groove. A pressure plate is movably disposed in the square groove. A spring is disposed between the pressure plate and the bottom surface of the square groove. One end of the spring is connected to the bottom surface of the square groove, and the other end is connected to the pressure plate.

2. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The limiting edge is provided with a first guide edge.

3. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The fixture plate is provided with several threaded holes, and the limiting block is provided with strip holes.

4. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The pressure plate has guide edges on both sides, and the cover plate has guide grooves that cooperate with the guide edges.

5. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The fixture plate is provided with a first magnet, and the cover plate is provided with a second magnet that cooperates with the first magnet.

6. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The fixture plate is provided with mounting holes, which are located at the four corners of the fixture plate.

7. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The outermost layer of the pressure plate is provided with a soft rubber layer.

8. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The fixture plate has rounded edges.

9. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The fixture plate is equipped with a material handling position.

10. The high-precision positioning and fixing device for battery tab welding according to claim 1, characterized in that, The limiting block is provided with a second guide edge.

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