Tab cutting tool

Abstract

The utility model belongs to the technical field of battery manufacturing equipment, and discloses a tab cutting tool which comprises a workbench, a cutter mechanism and a bearing mechanism. And the cutter mechanism is arranged on the workbench and can cut the tabs of the battery cells. The bearing mechanism comprises a movable bearing table, a guide assembly and a positioning assembly, the positioning assembly is arranged on the movable bearing table to form a positioning space with adjustable size and position, the battery cell is positioned in the positioning space, and the guide assembly is arranged on the working table and is in transmission connection with the movable bearing table; and the movable bearing table can move the battery cell to a cutting position under the driving of the action of the guide assembly. According to the tab cutting tool, accurate positioning of the battery cell can be conveniently achieved, and then the tab cutting quality and the tab cutting efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing equipment technology, and in particular to a tab cutting tool. Background Technology

[0002] After the production of pouch cells is completed, the tabs need to be cut to the required length. Existing pouch battery tab cutting equipment typically places the pouch cells on a platform and then directly cuts the tabs using a cutting assembly.

[0003] The platform typically has limiting components to position the battery cells. However, the space between these limiting components is small, making it difficult to place the cells correctly. Furthermore, during cutting, the cell tabs need to extend between the cutters of the cutting assembly. If the tabs are misaligned, they may collide with the cutters as they extend. This increases the difficulty of placing the cell in the correct cutting position. Misalignment not only affects the cutting quality but also the efficiency of the tab cutting process.

[0004] Therefore, there is an urgent need for a tooling for cutting tabs to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tab cutting fixture, which facilitates accurate positioning of the battery cell, thereby improving the cutting quality and efficiency of the tab.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The electrode cutting fixture includes:

[0008] Workbench;

[0009] A cutting mechanism, mounted on the worktable, is capable of cutting the tabs of the battery cell;

[0010] The support mechanism includes a movable support platform, a guide component, and a positioning component. The positioning component is disposed on the movable support platform to form a positioning space with adjustable size and position. The battery cell is positioned in the positioning space. The guide component is disposed on the worktable and is connected to the movable support platform. The movable support platform can move the battery cell to the cutting position under the action of the guide component.

[0011] As a preferred embodiment of the electrode cutting fixture provided by this utility model, the positioning component includes a fixed positioning structure and a movable positioning structure. The fixed positioning structure is fixedly disposed on the movable support platform, and the movable positioning structure is movably disposed on the movable support platform. The positioning space is formed between the fixed positioning structure and the movable positioning structure, and the battery cell can be clamped and positioned between the fixed positioning structure and the movable positioning structure.

[0012] As a preferred embodiment of the electrode cutting fixture provided by this utility model, the fixed positioning structure includes a first fixed positioning member and a second fixed positioning member. The first fixed positioning member and the second fixed positioning member are arranged at an angle and are both disposed on the movable support platform. The adjacent sides of the battery cell can respectively abut against the first fixed positioning member and the second fixed positioning member; and / or,

[0013] The movable positioning structure includes a first movable positioning member and a second movable positioning member. The first movable positioning member and the first fixed positioning member are adjustablely positioned on the movable support platform. The second movable positioning member and the second fixed positioning member are also adjustablely positioned on the movable support platform. The other two adjacent sides of the battery cell can respectively abut against the first movable positioning member and the second movable positioning member.

[0014] As a preferred embodiment of the tab cutting fixture provided by this utility model, the movable support platform is provided with a plurality of first fixed mounting positions, the plurality of first fixed mounting positions are spaced apart along a first direction, and the first fixed positioning member can be selectively mounted on one of the first fixed mounting positions.

[0015] The movable support platform is also provided with a plurality of second fixed mounting positions, which are spaced apart along the first direction, and the second fixed positioning member can be selectively mounted on one of the second fixed mounting positions.

[0016] The first direction is parallel to the spacing direction of the first fixed positioning member and the first movable positioning member.

[0017] As a preferred embodiment of the tab cutting fixture provided by this utility model, the movable positioning structure further includes a first driving member and a second driving member, the first driving member and the second driving member being respectively mounted on the movable support platform, the first movable positioning member being connected to the first output part of the first driving member, and the second movable positioning member being connected to the second output part of the second driving member; and / or,

[0018] The first output section is provided with a plurality of first movable mounting positions along the first direction, and the first movable positioning member can be selectively disposed on one of the first movable mounting positions; the first direction is parallel to the spacing arrangement direction of the first fixed positioning member and the first movable positioning member;

[0019] The second output section has a plurality of second movable mounting positions along the second direction, and the second movable positioning member can be selectively mounted on one of the second movable mounting positions; the second direction is parallel to the spacing direction of the second fixed positioning member and the second movable positioning member.

[0020] As a preferred embodiment of the tab cutting fixture provided by this utility model, the movable support platform has a first clearance groove along a first direction, the first output part is accommodated in the first clearance groove, and the first movable positioning member is located on the upper end face of the movable support platform; and / or,

[0021] The movable support platform has a second clearance groove along the second direction, the second output part is accommodated in the second clearance groove, and the second movable positioning member is located on the upper end face of the movable support platform.

[0022] As a preferred embodiment of the electrode cutting fixture provided by this utility model, the electrode cutting fixture further includes a positioning detection mechanism, which includes a limiting member and a control device. The limiting member is disposed on the worktable and is communicatively connected to the control device, and the drive component is communicatively connected to the control device.

[0023] The guiding component includes a driving component, which is disposed on the worktable and is connected to the movable support platform. The driving component is also connected to the control device, and is capable of moving the movable support platform.

[0024] The limiting member can send a positioning signal to the control device when it contacts the movable support platform, and the control device can control the drive component to stop after receiving the positioning signal.

[0025] As a preferred embodiment of the tab cutting fixture provided by this utility model, the limiting member is adjustablely positioned on the worktable along the moving direction of the movable support platform.

[0026] As a preferred embodiment of the tab cutting fixture provided by this utility model, the limiting member and the movable support platform are respectively provided with a first buffer and a second buffer on their opposite sides, and the first buffer and the second buffer are arranged facing each other.

[0027] As a preferred embodiment of the tab cutting fixture provided by this utility model, the guiding component further includes a movable guide rail, which is disposed on the worktable, and the movable support platform is disposed on the movable guide rail and can move along the movable guide rail.

[0028] The beneficial effects of this utility model are:

[0029] The electrode cutting fixture provided by this utility model includes a worktable, a cutting mechanism, and a carrying mechanism. The cutting mechanism, mounted on the worktable, is capable of cutting the electrode tabs of the battery cell. Through this cutting mechanism, the electrode tabs of the battery cell can be cut, realizing the basic function of the electrode cutting fixture. The carrying mechanism includes a movable carrying platform, a guide assembly, and a positioning assembly. The positioning assembly, mounted on the movable carrying platform, forms a positioning space with adjustable size and position, in which the battery cell is positioned. Through this adjustable positioning space, different battery cells can be accurately positioned on the movable carrying platform. The guide assembly, mounted on the worktable and connected to the movable carrying platform, allows the movable carrying platform to move the battery cell to the cutting position under the action of the guide assembly. The aforementioned guide components allow the battery cell to be positioned before it moves to the cutting position. Then, the battery cell is moved to the cutting position through the cooperation of the guide components and the movable support platform. This expands the operating space for battery cell installation, facilitates accurate positioning of the battery cell, improves the efficiency and accuracy of battery cell positioning, and thus improves the cutting efficiency and quality of the tabs. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the tab cutting fixture provided in this embodiment of the utility model;

[0032] Figure 2 yes Figure 1 A magnified view of a section marked A in the middle;

[0033] Figure 3 This is a partial structural schematic diagram of the tab cutting fixture provided in this embodiment of the utility model;

[0034] Figure 4 yes Figure 3 A magnified view of a section marked B in the middle;

[0035] Figure 5 This is a partial enlarged view of the tab cutting tool provided in this embodiment of the utility model.

[0036] In the picture:

[0037] 10. Battery cells;

[0038] 100. Workbench; 110. Moving guide rail;

[0039] 200. Cutting mechanism;

[0040] 300, Supporting mechanism; 310, Movable support platform; 311, First clearance groove; 312, Second clearance groove; 313, Second buffer; 314, Connecting groove; 315, First fixed mounting hole; 316, Second fixed mounting hole; 320, Drive assembly; 321, Drive device; 322, First support; 323, Second support; 324, Output connector; 330, Fixed positioning structure; 331, First fixed positioning component; 332, Second fixed positioning component; 340, Movable positioning structure; 341, First movable positioning component; 342, Second movable positioning component; 343, First drive component; 3431, First output; 3432, First movable mounting hole; 3441, Second output; 3442, Second movable mounting hole;

[0041] 400. Testing agency in place; 410. Limiting component; 420. First buffer component. Detailed Implementation

[0042] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] 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 embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] 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.

[0046] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0050] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0051] Figure 1 This diagram illustrates the structure of the tab cutting fixture provided in an embodiment of the present invention. (Refer to...) Figure 1 This embodiment provides a tab cutting fixture. The tab cutting fixture includes a worktable 100, a cutting mechanism 200, and a supporting mechanism 300. The cutting mechanism 200 is disposed on the worktable 100 and is capable of cutting the tabs of the battery cell 10. The cutting mechanism 200 can be any prior art device used for cutting the tabs of the battery cell 10; its structure and principle will not be described in detail here.

[0052] Specifically, the supporting mechanism 300 includes a movable supporting platform 310, a guiding component, and a positioning component. The positioning component is mounted on the movable supporting platform 310, forming a positioning space with adjustable size and position. The battery cell 10 is positioned within this positioning space, accurately positioning it before it moves to the cutting position. The positioning space's size and position can be flexibly adjusted according to the different sizes of the battery cell 10, ensuring the effectiveness of subsequent tab cutting. The guiding component is mounted on the worktable 100 and connected to the movable supporting platform 310. The movable supporting platform 310 can move the battery cell 10 to the cutting position under the action of the guiding component. Through the guiding component, the movable supporting platform 310 can move between the battery cell mounting position and the cutting position, allowing the battery cell 10 to be positioned in the battery cell mounting position with a larger operating space before moving to the cutting position for tab cutting. This reduces the positioning difficulty of the battery cell 10 and improves its positioning effect.

[0053] Figure 2 Show Figure 1 A magnified view of the structure marked A in the middle. (Refer to...) Figure 1 and Figure 2 The guiding assembly includes a drive assembly 320, which comprises a mounting base and a drive device 321. The mounting base is fixedly mounted on the worktable 100, and the drive portion of the drive device 321 is fixedly mounted on the mounting base. The output portion of the drive device 321 is connected to the movable support platform 310. In this embodiment, the drive device 321 may specifically be a propulsion cylinder. Furthermore, the drive assembly 320 enhances the automation of the movement of the battery cell 10, thereby improving the accuracy of the relative position adjustment between the battery cell 10 and the cutting position.

[0054] Specifically, the output section of the drive device 321 is provided with a T-shaped block-shaped output connector 324, and the base of the movable support platform 310 is correspondingly provided with a connecting groove 314, which is also T-shaped. The output connector 324 can be embedded in the connecting groove 314, thereby achieving a reliable connection between the output section of the drive device 321 and the movable support platform 310.

[0055] More specifically, the mounting base includes a first support 322 and a second support 323 spaced apart. The first support 322 and the second support 323 are spaced apart along the axial direction of the drive unit of the drive device 321, respectively providing fixed support to both ends of the drive unit of the drive device 321. The first support 322 and the second support 323 are detachably connected to the worktable 100 via bolts or other connecting components, allowing for position adjustment according to different drive devices 321, and are suitable for fixedly supporting drive devices 321 with different axial dimensions.

[0056] Figure 3 This diagram shows a partial structural schematic of the tab cutting fixture provided in an embodiment of the present invention. (Refer to...) Figure 1 and Figure 3 The positioning component includes a fixed positioning structure 330 and a movable positioning structure 340. The fixed positioning structure 330 is fixedly disposed on the movable support platform 310, and the movable positioning structure 340 is movably disposed on the movable support platform 310. The battery cell 10 can be clamped and positioned between the fixed positioning structure 330 and the movable positioning structure 340.

[0057] Specifically, the fixed positioning structure 330 includes a first fixed positioning member 331 and a second fixed positioning member 332. The first fixed positioning member 331 and the second fixed positioning member 332 are arranged at an angle and are both disposed on the movable support platform 310. The adjacent sides of the battery cell 10 can respectively abut against the first fixed positioning member 331 and the second fixed positioning member 332. In this embodiment, the first fixed positioning member 331 and the second fixed positioning member 332 are arranged at a right angle.

[0058] More specifically, the movable positioning structure 340 includes a first movable positioning member 341 and a second movable positioning member 342. The first movable positioning member 341 and the first fixed positioning member 331 are adjustablely positioned on the movable support platform 310. The second movable positioning member 342 and the second fixed positioning member 332 are adjustablely positioned on the movable support platform 310. The other two adjacent sides of the battery cell 10 can respectively abut against the first movable positioning member 341 and the second movable positioning member 342. In this embodiment, the first movable positioning member 341 and the first fixed positioning member 331 can clamp the battery cell 10 in the width direction, and the second movable positioning member 342 and the second fixed positioning member 332 can clamp the battery cell 10 in the length direction.

[0059] More specifically, the first fixed positioning member 331, the first movable positioning member 341, and the second movable positioning member 342 are all elongated block structures to increase the contact area with the side of the battery cell 10, ensuring the uniformity of force on the battery cell 10, and providing structural protection while positioning the battery cell 10. The second fixed positioning member 332 is specifically two spaced L-shaped fixing members. The two L-shaped fixing members can be fixedly mounted on the movable support platform 310, and respectively abut and position the battery cell 10 against both sides facing the front end of the cutting mechanism 200. The tabs of the battery cell 10 can extend from the space between the two L-shaped fixing members, facilitating the cutting by the cutting mechanism 200.

[0060] Figure 4 Show Figure 3 A magnified view of a section marked B in the middle; Figure 5 This diagram shows a partial enlarged view of the tab cutting fixture provided in an embodiment of the present invention. (Refer to...) Figures 3-5 The movable support platform 310 is provided with multiple first fixed mounting positions, which are spaced apart along a first direction. The first fixed positioning member 331 can be selectively mounted on one of these first fixed mounting positions. Similarly, the movable support platform 310 is also provided with multiple second fixed mounting positions, which are spaced apart along the first direction. The second fixed positioning member 332 can be selectively mounted on one of these second fixed mounting positions. The first direction is parallel to the spacing direction of the first fixed positioning member 331 and the first movable positioning member 341. Through this arrangement, the positions of the first fixed positioning member 331 and the second fixed positioning member 332 can be adjusted along the first direction, thereby improving the flexibility of cell 10 positioning and enabling the fixed positioning structure 330 to be applicable to the positioning of cells 10 with different widths and lengths.

[0061] Specifically, refer to Figure 4The movable support platform 310 has multiple sets of first fixing mounting holes 315 along a first direction, each set including two first fixing mounting holes 315 spaced apart in a second direction. The first fixing positioning member 331 can be selectively installed into one set of first fixing mounting holes 315 by means of bolts or other connecting parts. The aforementioned second direction is parallel to the spacing direction of the second fixing positioning member 332 and the second movable positioning member 342.

[0062] More specifically, the movable support platform 310 is provided with a plurality of second fixed mounting holes 316 along the first direction, and the L-shaped fastener can be installed in one of the second fixed mounting holes 316 by means of bolts or other connecting parts.

[0063] More specifically, the movable positioning structure 340 also includes a first driving member 343 and a second driving member (not shown in the figure). The first driving member 343 and the second driving member are respectively mounted on the movable support platform 310. The first movable positioning member 341 is connected to the first output portion 3431 of the first driving member 343, and the second movable positioning member 342 is connected to the second output portion 3441 of the second driving member. In this embodiment, the first movable positioning member 341 is connected above the first output portion 3431, and the second movable positioning member 342 is connected above the second output portion 3441. Both the first output portion 3431 and the second output portion 3441 have a long strip plate structure, which can improve the support stability of the first output portion 3431 on the first movable positioning member 341 and improve the support stability of the second output portion 3441 on the second movable positioning member 342.

[0064] More specifically, the first output section 3431 has a plurality of first movable mounting positions along a first direction, and the first movable positioning member 341 can be selectively mounted on one of the first movable mounting positions. The second output section 3441 has a plurality of second movable mounting positions along a second direction, and the second movable positioning member 342 can be selectively mounted on one of the second movable mounting positions. Through the above arrangement, the position of the first movable positioning member 341 can be finely adjusted in the first direction, and the position of the second movable positioning member 342 can be finely adjusted in the second direction, thereby improving the flexibility of the positioning of the battery cell 10, so that the movable positioning structure 340 can be adapted to the positioning of battery cells 10 with different widths and lengths.

[0065] More specifically, the first output portion 3431 has a plurality of first movable mounting holes 3432 spaced apart along a first direction, and the first movable positioning member 341 can be selectively connected to one of the first movable mounting holes 3432 by means of bolts or other connecting members. Similarly, the second output portion 3441 has a plurality of second movable mounting holes 3442 spaced apart along a second direction, and the second movable positioning member 342 can be selectively connected to one of the second movable mounting holes 3442 by means of bolts or other connecting members.

[0066] Continue to refer to Figure 5 The movable support platform 310 has a first clearance groove 311 along a first direction, and the first output portion 3431 is accommodated in the first clearance groove 311. The first movable positioning member 341 is located on the upper surface of the movable support platform 310. The movable support platform 310 has a second clearance groove 312 along a second direction, and the second output portion 3441 is accommodated in the second clearance groove 312. The second movable positioning member 342 is located on the upper surface of the movable support platform 310. Through the above arrangement, the first movable positioning member 341 and the second movable positioning member 342 can be made as close as possible to the upper surface of the movable support platform 310, thereby using the movable support platform 310 to support the first movable positioning member 341 and the second movable positioning member 342, ensuring the reliability of their positioning of the battery cell 10.

[0067] Continue to refer to Figure 1 and Figure 3 The tab cutting fixture also includes a positioning detection mechanism 400, which includes a limiting member 410 and a control device. The limiting member 410 is disposed on the worktable 100 and is communicatively connected to the control device. The drive assembly 320 is also communicatively connected to the control device. The limiting member 410 can emit a positioning signal when it contacts the movable support platform 310, and the control device can control the drive assembly 320 to stop when the limiting member 410 contacts the movable support platform 310. The control device can specifically be a PLC controller, which is existing technology, and its structure and principle will not be described in detail in this embodiment. Specifically, the limiting member 410 can use pressure sensing to detect the positioning of the movable support platform 310.

[0068] Specifically, the limiting member 410 is adjustablely positioned on the worktable 100 along the moving direction of the movable support platform 310. This configuration allows for fine-tuning of the distance between the movable support platform 310 and the cutting mechanism 200 when the platform is in position, thus adapting to the cutting requirements of tabs of different lengths.

[0069] More specifically, a first buffer 420 and a second buffer 313 are respectively provided on opposite sides of the limiting member 410 and the movable support platform 310, and the first buffer 420 and the second buffer 313 are arranged directly opposite each other. Both the first buffer 420 and the second buffer 313 can be made of rubber material, which can form a buffer between the limiting member 410 and the movable support platform 310 to avoid the problem of collision and damage between the two.

[0070] More specifically, the guiding assembly also includes a movable guide rail 110, which is disposed on the worktable 100. The movable support platform 310 is disposed on the movable guide rail 110 and can move along the movable guide rail 110. By setting the movable guide rail 110, the movement of the movable support platform 310 can be guided and limited, further improving the accuracy of the cell 10 moving to the cutting position.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tab cutting fixture, characterized in that, include: Workbench (100); A cutting mechanism (200) is provided on the worktable (100) and is capable of cutting the tabs of the battery cell (10); The support mechanism (300) includes a movable support platform (310), a guide component, and a positioning component. The positioning component is disposed on the movable support platform (310) to form a positioning space with adjustable size and position. The battery cell (10) is positioned in the positioning space. The guide component is disposed on the worktable (100) and is connected to the movable support platform (310) by transmission. The movable support platform (310) can move the battery cell (10) to the cutting position under the action of the guide component.

2. The electrode tab cutting fixture according to claim 1, characterized in that, The positioning component includes a fixed positioning structure (330) and a movable positioning structure (340). The fixed positioning structure (330) is fixedly disposed on the movable support platform (310), and the movable positioning structure (340) is movably disposed on the movable support platform (310). The positioning space is formed between the fixed positioning structure (330) and the movable positioning structure (340), and the battery cell (10) can be clamped and positioned between the fixed positioning structure (330) and the movable positioning structure (340).

3. The electrode tab cutting fixture according to claim 2, characterized in that, The fixed positioning structure (330) includes a first fixed positioning member (331) and a second fixed positioning member (332). The first fixed positioning member (331) and the second fixed positioning member (332) are arranged at an angle and are both disposed on the movable support platform (310). The adjacent sides of the battery cell (10) can respectively abut against the first fixed positioning member (331) and the second fixed positioning member (332); and / or, The movable positioning structure (340) includes a first movable positioning member (341) and a second movable positioning member (342). The first movable positioning member (341) and the first fixed positioning member (331) are adjustablely positioned on the movable support platform (310). The second movable positioning member (342) and the second fixed positioning member (332) are adjustablely positioned on the movable support platform (310). The other two adjacent sides of the battery cell (10) can respectively abut against the first movable positioning member (341) and the second movable positioning member (342).

4. The electrode tab cutting fixture according to claim 3, characterized in that, The movable support platform (310) is provided with a plurality of first fixed installation positions, which are spaced apart along a first direction. The first fixed positioning member (331) can be selectively installed on one of the first fixed installation positions. The movable support platform (310) is also provided with a plurality of second fixed installation positions, which are spaced apart along the first direction. The second fixed positioning member (332) can be selectively installed on one of the second fixed installation positions. The first direction is parallel to the spacing arrangement direction of the first fixed positioning member (331) and the first movable positioning member (341).

5. The electrode tab cutting fixture according to claim 3, characterized in that, The movable positioning structure (340) further includes a first driving member (343) and a second driving member, the first driving member (343) and the second driving member being respectively mounted on the movable support platform (310), the first movable positioning member (341) being connected to the first output portion (3431) of the first driving member (343), and the second movable positioning member (342) being connected to the second output portion (3441) of the second driving member; and / or, The first output section (3431) is provided with a plurality of first movable mounting positions along the first direction, and the first movable positioning member (341) can be selectively disposed on one of the first movable mounting positions; the first direction is parallel to the spacing arrangement direction of the first fixed positioning member (331) and the first movable positioning member (341); The second output section (3441) is provided with a plurality of second movable mounting positions along the second direction, and the second movable positioning member (342) can be selectively disposed on one of the second movable mounting positions; the second direction is parallel to the spacing arrangement direction of the second fixed positioning member (332) and the second movable positioning member (342).

6. The tab cutting fixture according to claim 5, characterized in that, The movable support platform (310) has a first clearance groove (311) along a first direction, the first output part (3431) is accommodated in the first clearance groove (311), and the first movable positioning member (341) is located on the upper end face of the movable support platform (310); and / or, The movable support platform (310) has a second clearance groove (312) along the second direction, the second output part (3441) is accommodated in the second clearance groove (312), and the second movable positioning member (342) is located on the upper surface of the movable support platform (310).

7. The electrode tab cutting fixture according to any one of claims 1-6, characterized in that, The electrode cutting fixture also includes a positioning detection mechanism (400), which includes a limiting member (410) and a control device. The limiting member (410) is disposed on the worktable (100) and is communicatively connected to the control device. The guiding component includes a drive component (320), which is disposed on the worktable (100) and is connected to the movable support platform (310). The drive component (320) is communicatively connected to the control device, and the drive component (320) can drive the movable support platform (310) to move. The limiting member (410) can send a positioning signal to the control device when it contacts the movable support platform (310), and the control device can control the drive assembly (320) to stop after receiving the positioning signal.

8. The electrode tab cutting fixture according to claim 7, characterized in that, The limiting member (410) is adjustablely positioned on the worktable (100) along the moving direction of the movable support platform (310).

9. The electrode tab cutting fixture according to claim 7, characterized in that, The limiting member (410) and the movable support platform (310) are respectively provided with a first buffer (420) and a second buffer (313) on opposite sides, and the first buffer (420) and the second buffer (313) are arranged directly opposite each other.

10. The tab cutting fixture according to claim 7, characterized in that, The guiding assembly also includes a movable guide rail (110), which is disposed on the worktable (100). The movable support platform (310) is disposed on the movable guide rail (110) and can move along the movable guide rail (110).

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