Positioning fixture for battery cell processing

Abstract

The utility model discloses a positioning fixture for processing battery cells in the field of fixtures, which comprises a base and a bottom plate, the bottom plate is arranged below the base, the base can move relative to the bottom plate along a certain direction, a groove for inserting a plurality of battery cells is arranged on the base, the groove is provided with an outline for tightly arranging the battery cells, and the outline is provided with a plurality of grooves for tightly arranging the battery cells. A groove is formed in the bottom of the base plate, a matched ejection plate is arranged at the bottom of the groove, a plurality of ejection rods are mounted on the base plate, one end of each ejection rod penetrates through the base to be connected with the ejection plate, and when the base moves towards one end of the base plate, the position of the ejection plate is kept unchanged under the support of the ejection rods, so that the battery cells inserted into the groove are synchronously ejected out. A plurality of guide columns are connected between the base and the bottom plate, and the outer sides of the guide columns are sleeved with springs used for resetting the base. The battery cells are accurately arranged and stably clamped through the grooves in the base, it is ensured that the battery cells do not displace in the spot welding process, efficiency is improved, after the base can be pressed downwards towards one end of the bottom plate, the battery cells subjected to spot welding can be rapidly taken out, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a positioning fixture for battery cell processing. Background Technology

[0002] In the battery cell manufacturing process, positioning fixtures play a crucial role, directly affecting the cell alignment accuracy, clamping stability, and the convenience of subsequent processing operations. Traditional battery cell positioning fixtures often suffer from inaccurate cell alignment and unstable clamping, problems that are particularly prominent during spot welding. Due to loose cell alignment or insecure clamping, cells are prone to displacement during spot welding, leading to inaccurate welding positions and affecting cell performance and safety.

[0003] Furthermore, the process of removing the battery cells after spot welding using traditional cell positioning fixtures is often cumbersome and time-consuming. This not only reduces production efficiency but also increases production costs. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a positioning fixture for battery cell processing, which can effectively solve the technical problems of poor stability and inconvenience in removing battery cells by the fixtures currently used for battery cell welding.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A positioning fixture for battery cell processing includes a base and a base plate. The base plate is disposed below the base and the base is movable relative to the base plate in a certain direction. The base has a groove for inserting multiple battery cells. The groove has a contour for closely arranging the battery cells. A matching ejector plate is disposed at the bottom of the groove.

[0007] Several ejector rods are installed on the base plate. The end of the ejector rod away from the base plate passes through the base and connects to the ejector plate. When the base moves to one end of the base plate, the ejector plate remains in a fixed position under the support of the ejector rods, thereby synchronously ejecting the battery cell inserted in the groove.

[0008] Several guide posts are connected between the base and the bottom plate, and springs for resetting the base are sleeved on the outer side of the guide posts.

[0009] Furthermore, the base is provided with a protrusion, and the ejector rod passes through the protrusion and is inserted into the interior of the base. After the ejector rod is inserted into the base, it is aligned with the bottom of the groove.

[0010] Furthermore, the base is provided with pressing parts on both sides for pressing the base downwards.

[0011] Furthermore, the inner wall of the groove is provided with an antistatic fabric layer, which is one of polyester, nylon and carbon fiber.

[0012] Furthermore, the side of the ejector plate connected to the ejector rod is provided with several protruding connecting parts, the connecting parts are embedded in the bottom of the groove, and the ejector rod is fixed to the ejector plate by inserting into the connecting parts.

[0013] Furthermore, the guide posts are distributed at the four corners of the base and the bottom plate, one end of the guide post is connected to the top of the bottom plate, the other end of the guide post passes through the base and pushes upward, the end of the guide post that pushes upward onto the base is connected to an upper limit block, and the middle of the guide post is connected to a lower limit block located between the base and the bottom plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes the precise cell arrangement and stable clamping of grooves on the base to ensure that the cells do not shift during spot welding, thus improving the accuracy and efficiency of spot welding. Simultaneously, the base can be pressed down towards one end of the base plate, allowing for quick and easy removal of the spot-welded cells, making operation convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the base in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection of the internal ejector plate of the base in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal groove structure of the base in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the top plate in an embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the ejector rod connection in an embodiment of the present invention;

[0022] Numbering on the map:

[0023] 1-Base, 2-Base plate, 3-Ejection plate, 4-Ejection rod, 5-Guide column, 6-Spring, 7-Antistatic fabric layer;

[0024] 101-Groove, 102-Outline, 103-Protrusion, 104-Pressing part;

[0025] 301 - Connecting part;

[0026] 501 - Upper limit block, 502 - Lower limit block. Detailed Implementation

[0027] 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.

[0028] like Figure 1-6 As shown, this utility model provides a positioning fixture for battery cell processing, which is suitable for positioning and clamping the battery cell during spot welding of the battery cell and the electrode sheet, ensuring that the battery cell does not shift during the spot welding process, and improving the accuracy and efficiency of spot welding.

[0029] The fixture consists of two parts: a base 1 and a base plate 2. After assembly, the base plate 2 is positioned below the base 1 to provide stable support, and the base 1 can move relative to the base plate 2 in a certain direction. After spot welding is completed, the base 1 moves towards one end of the base plate 2 to push out the battery cell and remove it; when the base 1 needs to be reset, it moves in the opposite direction to the base plate 2.

[0030] The base 1 serves as the main support component for the battery cells. To facilitate the insertion of the battery cells requiring spot welding, the base 1 has grooves 101 for accommodating multiple battery cells. These grooves 101 are designed with contours 102 to ensure a tight fit between the battery cells and the grooves, based on the size and shape of the cells and the matching contours 102. This ensures the cells are tightly packed within the grooves and prevents displacement during processing. After the battery cells are installed in the grooves 101, to avoid affecting the detonation point, the top of the battery cell protrudes upwards after insertion.

[0031] A matching ejector plate 3 is provided at the bottom of the groove 101. When it is necessary to remove the battery cell, the ejector plate 3 pushes the battery cell out of the groove by the ejector rod 4, which facilitates the quick replacement or removal of the battery cell. The ejector rod 4 is a key component connecting the base plate 2 and the ejector plate 3. When the base 1 moves towards the base plate 2, the ejector rod 4 remains in a fixed position, thereby pushing the ejector plate 3 upward to remove the battery cell.

[0032] To enhance the stability of the connection between the ejector plate 3 and the ejector rod 4, several protruding connecting parts 301 are provided on the side where the ejector plate 3 and the ejector rod 4 are connected. At this time, the connecting parts 301 are embedded in the bottom of the groove 101, and the ejector rod 4 is fixed to the ejector plate 3 by inserting into the connecting parts 301, so as to ensure the stability and reliability during ejection.

[0033] The ejector rod 4 is mounted on the base plate 2, passing through the base 1 and connecting to the ejector plate 3 located at the bottom of the groove 101. During use, when the base 1 moves towards one end of the base plate 2, the ejector plate 3 remains in position under the support of the ejector rod 4, thus simultaneously ejecting the battery cell inserted into the groove 101. The base 1 has a protrusion 103 through which the ejector rod 4 passes. After insertion, the ejector rod 4 aligns with the bottom of the groove 101. This protrusion enhances the stability of the ejector rod 4.

[0034] To further control the direction of movement of the base 1, several guide posts 5 are connected between the base 1 and the base plate 2 to ensure the stability of the base 1 during movement. In addition, a spring 6 is sleeved on the outside of the guide posts 5 for automatic reset after the base 1 moves. The spring 6 is installed between the lower limit block 502 and the base 1.

[0035] In addition, the guide posts 5 are mainly distributed at the four corners of the base 1 and the base plate 2. One end of the guide post 5 is connected to the top of the base plate 2, and the other end of the guide post 5 passes through the base 1 and pushes upward. The end of the guide post 5 that pushes upward toward the base 1 is connected to an upper limit block 501, and the middle part of the guide post 5 is connected to a lower limit block 502 located between the base 1 and the base plate 2. The upper limit block 501 located above the base 1 effectively prevents the base 1 from falling off the guide post 5, while the lower limit block 502 in the middle is used to limit the maximum downward distance of the base 1.

[0036] To facilitate user operation, pressing parts 104 are provided on both sides of the base 1 for pressing the base 1 downwards. The pressing parts 104 make it easy for the operator to press the base 1 downwards, so that the base 1 moves along the guide post 5 towards the base plate 2, thereby triggering the ejection mechanism.

[0037] To improve safety, the inner wall of the groove 101 is provided with an antistatic fabric layer 7, which is one of polyester, nylon and carbon fiber. It can not only protect the outer layer of the battery cell, but also effectively prevent the battery cell from being damaged by static electricity during processing.

[0038] Compared with traditional technologies, this technical solution ensures that the battery cells do not shift during spot welding by precisely arranging and stably clamping them through the grooves 101 on the base 1, thus improving the accuracy and efficiency of spot welding. Simultaneously, the base 1 can be pressed down onto one end of the base plate 2, allowing for quick removal of the spot-welded battery cells, making the operation convenient.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A positioning fixture for battery cell processing, comprising a base and a base plate, wherein the base plate is disposed below the base, and the base is movable relative to the base plate in a certain direction, characterized in that: The base has a groove for inserting multiple battery cells, the groove has a contour for closely arranging the battery cells, and the bottom of the groove is provided with a matching top plate. The base plate is equipped with several ejector rods. The end of the ejector rod away from the base plate passes through the base and is connected to the ejector plate. When the base moves to one end of the base plate, the ejector plate remains in a fixed position under the support of the ejector rods, thereby simultaneously ejecting the battery cell inserted in the groove. Several guide posts are connected between the base and the bottom plate, and springs for resetting the base are sleeved on the outer side of the guide posts.

2. A positioning fixture for battery cell processing according to claim 1, characterized in that: The base is provided with a protrusion, and the ejector rod passes through the protrusion and is inserted into the base. After the ejector rod is inserted into the base, it is aligned with the bottom of the groove.

3. A positioning fixture for battery cell processing according to claim 1, characterized in that: The base has pressing parts on both sides for pressing the base downwards.

4. A positioning fixture for battery cell processing according to claim 1, characterized in that: The inner wall of the groove is provided with an antistatic fabric layer, which is one of polyester, nylon and carbon fiber.

5. A positioning fixture for battery cell processing according to claim 1, characterized in that: The side of the ejector plate that connects to the ejector rod has several protruding connecting parts. The connecting parts are embedded in the bottom of the groove, and the ejector rod is fixed to the ejector plate by inserting into the connecting parts.

6. A positioning fixture for battery cell processing according to any one of claims 1-5, characterized in that: The guide posts are distributed at the four corners of the base and the bottom plate. One end of the guide post is connected to the top of the bottom plate, and the other end of the guide post passes through the base and pushes upward. The end of the guide post that pushes upward toward the base is connected to an upper limit block, and the middle of the guide post is connected to a lower limit block located between the base and the bottom plate.

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