Pole lug bending limiting tool

Abstract

The utility model discloses a pole lug bending limiting tool. The pole lug bending limiting tool comprises a plurality of clamping teeth, a plurality of clamping rods and a locking adjusting piece. The clamping rods and the clamping teeth separate the two adjacent positive tabs and separate the two adjacent negative tabs, and the locking adjusting pieces are arranged, so that the tabs are stably arranged between the clamping rods and the clamping teeth, and the clamped tabs are prevented from loosening; the second bending supporting faces of the clamping rods can flatten the bending parts of the tabs so that the bending parts of the tabs can have good planeness, and the first bending supporting faces of the clamping teeth can flatten the bending parts of the tabs so that the bending parts of the tabs can have good planeness. Therefore, the tab can be conveniently inserted into a preset position, and the welding quality of the tab and the busbar is improved.

Description

Technical Field

[0001] This utility model generally relates to the field of lithium battery technology, and in particular to a tab bending and limiting tooling. Background Technology

[0002] Existing battery modules consist of multiple cells, whose tabs are welded together via busbars to achieve series and parallel connections between cells. When installing and connecting the cell tabs to the busbars, the tabs need to be passed through the corresponding mounting holes on the busbars.

[0003] The tabs are typically bent using a roller pressing method to facilitate insertion of the bent portion into the mounting hole. However, when the bent portion of the tab is uneven, it is difficult to insert it into the mounting hole, making it difficult to weld the tab to the busbar. Utility Model Content

[0004] This application aims to provide a tab bending and limiting fixture, which at least allows the tab to be easily inserted into a preset position, thereby improving the welding quality between the tab and the busbar.

[0005] This utility model provides a limit fixture for bending pole tabs, including multiple clamping teeth, multiple clamping rods and locking adjustment components.

[0006] A plurality of clamping teeth are spaced apart along the same direction, each clamping tooth having a first bending support surface; a plurality of clamping rods are arranged adjacent to the clamping teeth with a gap to clamp the tab to be bent, each clamping rod having a second bending support surface, the first bending support surface and the second bending support surface being located on the same plane, the first bending support surface and the second bending support surface being adapted to support the bent portion of the tab;

[0007] The locking adjustment is used at least to bring adjacent clamping rods and clamping teeth closer together to clamp the corresponding tabs to be bent.

[0008] As an alternative implementation, a first connecting tooth and a second connecting tooth are also included. A plurality of first connecting teeth and a plurality of second connecting teeth are arranged at intervals in the same direction, the first connecting teeth and the second connecting teeth are alternately arranged, the first connecting teeth are detachably connected to the clamping teeth, and the second connecting teeth are detachably connected to the clamping rod.

[0009] As an implementation method, the ends of the clamping teeth are provided with a first clamping portion and a second clamping portion that are opposite to each other and spaced apart along a first direction, wherein the first direction is perpendicular to the arrangement direction of the clamping teeth and perpendicular to the extension direction of the clamping teeth.

[0010] The gap between the first clamping part and the second clamping part is engaged with the first connecting tooth.

[0011] As an implementation method, one end of the clamping rod is provided with a third clamping portion and a fourth clamping portion that are opposite to each other and spaced apart along a second direction, wherein the second direction is parallel to the arrangement direction of the clamping rod;

[0012] The gap between the third clamping part and the fourth clamping part is engaged with the second connecting tooth.

[0013] As an implementation method, one of the third clamping portion and the fourth clamping portion is clamped in the gap between the adjacent first connecting tooth and the second connecting tooth.

[0014] As an implementation method, the two ends of the clamping rod have the same structure, and a first connecting and mating part is provided between any two adjacent clamping teeth. The first connecting and mating part includes an insert part extending along the first direction, and the gap at the other end of the clamping rod is inserted and mated with the insert part.

[0015] As an implementation method, in the arrangement of the clamping teeth and the first connecting engagement portion, one of the clamping teeth and the first connecting engagement portion is located at the head position and the other is located at the tail position; in the arrangement of the first connecting teeth and the second connecting teeth, one of the first connecting teeth and the second connecting teeth is located at the head position and the other is located at the tail position.

[0016] As one possible implementation, the locking adjustment member applies a force parallel to the arrangement direction of the clamping teeth to the clamping rods and / or clamping teeth located at the beginning and end positions, so that the adjacent clamping rods and clamping teeth clamp the corresponding tabs to be bent.

[0017] As one possible implementation, the locking adjustment component includes a screw, one end of which is provided with a stop, and the other end of which passes through each of the clamping teeth and each of the clamping rods, with a nut connected to the other end of the screw.

[0018] As an implementation method, at least two screws are provided, with the two screws respectively disposed near both ends of the clamping rod.

[0019] The above solution uses clamping rods and clamping teeth to separate adjacent positive tabs and adjacent negative tabs. The locking adjustment mechanism ensures the tabs are stably positioned between the clamping rods and clamping teeth, preventing loosening. The second bending support surface of the clamping rod smooths the bent portion of the tab, ensuring good flatness. Similarly, the first bending support surface of the clamping teeth smooths the bent portion of the tab, also ensuring good flatness. This allows the tabs to be easily inserted into the preset position, improving the welding quality between the tabs and the busbar. Simultaneously, the synergistic clamping action between the first and second bending support surfaces and the clamping rods and teeth allows the tabs to be bent to the desired degree without breaking, preventing damage. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 A schematic diagram of the structure of the electrode tab bending and limiting tooling provided in the embodiment of this utility model;

[0022] Figure 2 Exploded view of the tab bending and limiting tooling provided in the embodiment of this utility model;

[0023] Figure 3 The front view of the tab bending and limiting tooling provided in the embodiment of this utility model;

[0024] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0025] Figure 5 This is a schematic diagram of the structure of the first comb frame provided in an embodiment of the present utility model;

[0026] Figure 6 yes Figure 5 Schematic diagram of cross-section AA;

[0027] Figure 7 yes Figure 5 Schematic diagram of the cross-section BB;

[0028] Figure 8 yes Figure 5 A magnified view of a portion of C;

[0029] Figure 9 This is a schematic diagram of the structure of the clamping rod provided in an embodiment of the present utility model;

[0030] Figure 10 A schematic diagram of the tab bending and limiting tooling provided in this utility model embodiment in an application scenario;

[0031] First comb frame 10, clamping teeth 11, first clamping part 111, second clamping part 112, first bending support surface 101, first connecting and mating part 12, upper horizontal part 121, lower horizontal part 122, and inserting part 123;

[0032] Second comb frame 20, first connecting tooth 21, second connecting tooth 22;

[0033] Clamping rod 30, second bending support surface 301, right end of clamping rod 31, left end of clamping rod 32, third clamping part 321, fourth clamping part 322;

[0034] Screw 40, soft-pack battery 50. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] At least see Figures 1-10 As shown, this utility model provides a tab bending and limiting fixture, including: a first comb tooth frame 10, a locking adjustment component and several clamping rods 30.

[0038] The first comb frame 10 is provided with a plurality of clamping teeth 11 arranged at intervals in the same direction. Each clamping tooth 11 has a first bending support surface 101, and each first bending support surface 101 is located on the same plane.

[0039] A clamping rod 30 is detachably connected between at least two adjacent clamping teeth 11. The clamping rod 30 and the opposing surfaces of the clamping teeth 11 are used to clamp the tab to be bent. Each clamping rod 30 has a second bending support surface 301, and each second bending support surface 301 is located on the aforementioned plane.

[0040] Among them, such as Figure 1 and Figure 2 As shown, the first comb frame 10 has a plurality of clamping teeth 11 and a plurality of first connecting parts 12 arranged at intervals along the front-back direction, with the clamping teeth 11 and the first connecting parts 12 being arranged alternately. The cross-section of the clamping teeth 11 can be rectangular, and it has a first bending support surface 101, which is arranged facing upward. Each first bending support surface 101 is located on a first plane.

[0041] The clamping rod 30 corresponds one-to-one with the first connecting part 12. The length of the clamping rod 30 is set in the left-right direction, and one end of the clamping rod 30 is detachably connected to the first connecting part 12. For example, the clamping rod 30 and the first connecting part 12 are inserted into each other, threaded together, pinned together, etc. This embodiment will not list them all.

[0042] The clamping rod 30 can have a rectangular cross-section and has a second bending support surface 301, which also faces upward. Each of the second bending support surfaces 301 is located on the aforementioned first plane. Thus, the second bending support surface 301 and the first bending support surface 101 are located on the same plane.

[0043] like Figure 3 and Figure 4 As shown, there is a gap 'a' between the opposing surfaces of any two adjacent clamping rods 30 and clamping teeth 11. This gap 'a' is used to set the battery tabs to be bent. The surface of the clamping rod 30 facing the clamping teeth 11 is flat; the surface of the clamping teeth 11 facing the clamping rod 30 is flat. The locking adjustment mechanism brings adjacent clamping rods 30 and clamping teeth 11 closer together to clamp the corresponding tabs to be bent.

[0044] In practical applications, such as Figure 10 As shown, each pouch cell 50 includes two tabs located on one side of its length: a positive tab and a negative tab. Multiple pouch cells 50 are arranged to form a battery module. The tab bending and limiting fixture engages with each tab of the battery module, that is, the gap 'a' between adjacent clamping rods 30 and clamping teeth 11 is used to insert the positive and negative tabs of one pouch cell 50. The locking adjustment mechanism brings adjacent clamping rods 30 and clamping teeth 11 closer together to clamp the corresponding positive and negative tabs. The clamping rods 30 and clamping teeth 11 separate two adjacent positive tabs, and the clamping rods 30 and clamping teeth 11 separate two adjacent negative tabs. Due to the locking adjustment mechanism, the tabs are stably positioned between the clamping rods 30 and clamping teeth 11, preventing the clamped tabs from loosening.

[0045] Then, by rolling, some of the positive electrode tabs and some of the negative electrode tabs are bent. For example, as... Figure 10As shown, each positive electrode tab bends to the left, with the bent portion of each positive electrode tab abutting against the second bending support surface 301 of the clamping rod 30. The flat second bending support surface 301 smooths the bent portion of the positive electrode tab, ensuring good flatness. Each negative electrode tab bends to the right, with the bent portion of each negative electrode tab abutting against the first bending support surface 101 of the clamping teeth 11. The flat first bending support surface 101 smooths the bent portion of the negative electrode tab, ensuring good flatness. This allows the positive and negative electrodes to be easily inserted into preset positions, improving the welding quality between the positive and negative electrodes and the busbar. Simultaneously, the clamping action between the first bending support surface 101, the second bending support surface 301, the clamping rod 30, and the clamping teeth 11 works synergistically, allowing the electrodes to be bent to the desired degree without breaking, thus preventing electrode damage.

[0046] In summary, this embodiment separates two adjacent positive tabs and two adjacent negative tabs using the clamping rod 30 and clamping teeth 11. The locking adjustment mechanism ensures the tabs are stably positioned between the clamping rod 30 and clamping teeth 11, preventing loosening. The second bending support surface 301 of the clamping rod 30 smooths the bent portion of the tab, giving it good flatness. Similarly, the first bending support surface 101 of the clamping teeth 11 smooths the bent portion of the tab, also ensuring good flatness. This allows the tabs to be easily inserted into the preset position, improving the welding quality between the tabs and the busbar. Furthermore, the synergistic clamping action between the first bending support surface 101, the second bending support surface 301, the clamping rod 30, and the clamping teeth 11 allows the tabs to be bent to the desired degree without breaking, preventing damage.

[0047] As an implementation method, the tab bending and limiting fixture also includes a second comb tooth frame 20. Several first connecting teeth 21 and several second connecting teeth 22 are arranged at intervals along the same direction on the second comb tooth frame 20, with the first connecting teeth 21 and the second connecting teeth 22 alternating. The first connecting teeth 21 are detachably connected to the clamping teeth 11, and the second connecting teeth 22 are detachably connected to the clamping rod 30.

[0048] In a specific embodiment, such as Figures 1-3 As shown, the second comb frame 20 has a number of first connecting teeth 21 and second connecting teeth 22 arranged at intervals along the front-back direction, and the first connecting teeth 21 and second connecting teeth 22 are alternately arranged along the front-back direction.

[0049] like Figure 5 and Figure 6As shown, the left end of the clamping tooth 11 is provided with a first slot. The left end of the clamping tooth 11 is provided with a first clamping portion 111 and a second clamping portion 112 that are opposite to each other and spaced apart along the vertical direction (i.e., the first direction). The gap between the first clamping portion 111 and the second clamping portion 112 forms the first slot. The first connecting tooth 21 is adapted to the first slot, as shown... Figure 4 As shown, the first connecting tooth 21 is engaged with the first slot.

[0050] like Figure 9 As shown, the left end 32 of the clamping rod 30 is provided with a second slot. The left end 32 of the clamping rod 30 is provided with a third clamping portion 321 and a fourth clamping portion 322 that are opposite to each other and spaced apart in the front-back direction (i.e., the second direction). The gap between the third clamping portion 321 and the fourth clamping portion 322 forms the second slot. The second connecting tooth 22 is adapted to the second slot, such as... Figure 4 As shown, the second connecting tooth 22 is engaged with the second slot.

[0051] The first connecting tooth 21 engages with the first slot to restrict the degree of freedom of the second comb frame 20 in the vertical direction; the second connecting tooth 22 engages with the second slot to restrict the degree of freedom of the second comb frame 20 in the front-back direction; this allows the second comb frame 20 to be firmly connected to the clamping rod 30 and the second comb frame 20 to be firmly connected to the first comb frame 10.

[0052] Of course, it is understandable that the first connecting tooth 21 and the first insert slot can be mated, but not limited to being mated together; they can also be threaded together, pinned together, etc.; and the second connecting tooth 22 and the second insert slot can be mated, but not limited to being mated together; they can also be threaded together, pinned together, etc.

[0053] The clamping rod 30 has the same structure at both ends, and the first connecting part 12 is inserted into the other end of the clamping rod 30.

[0054] like Figure 9 As shown, the right end 31 of the clamping rod 30 has the same structure as the left end 32, and the right end 31 of the clamping rod 30 is provided with a third slot. This facilitates processing and reduces production costs.

[0055] like Figures 5-8 As shown, the first connecting part 12 has an I-shaped cross-section and includes an upper horizontal part 121 and a lower horizontal part 122 spaced apart in the vertical direction, and an insert part 123. The insert part 123 extends in the vertical direction and connects the upper horizontal part 121 and the lower horizontal part 122. The insert part 123 is inserted into the third insert slot. With this arrangement, the clamping rod 30 is firmly connected to the first comb tooth frame 10.

[0056] It should be noted that, as Figure 2As shown, after the electrode tabs and busbars are welded together, the second comb tooth frame 20 is detached from the first comb tooth frame 10 and the clamping rods 30 and moves to the left; the first comb tooth frame 10 is detached from the clamping rods 30 and moves to the right, and finally the clamping rods 30 are removed. The detachment between the first comb tooth frame 10 and the clamping rods 30 is simple and convenient and will not affect the electrode tabs or busbars.

[0057] As an implementation method, one of the third clamping part 321 and the fourth clamping part 322 is clamped in the gap between the adjacent first connecting tooth 21 and the second connecting tooth 22.

[0058] like Figure 4 As shown, the gap between the adjacent first connecting tooth 21 and the second connecting tooth 22 also fits into the third clamping part 321, which can further improve the connection strength between the second comb frame 20 and the clamping rod 30.

[0059] In practical applications, such as Figure 2 As shown, among the clamping teeth 11 and the first connecting engagement part 12 arranged in the front-to-back direction, the clamping teeth 11 are located at the head position and the first connecting engagement part 12 is located at the tail position; correspondingly, among the first connecting teeth 21 and the second connecting teeth 22 arranged in the front-to-back direction, the first connecting teeth 21 are located at the head position and the second connecting teeth 22 are located at the tail position. Alternatively, the first connecting engagement part 12 can be located at the head position and the clamping teeth 11 can be located at the tail position; the second connecting teeth 22 can be located at the head position and the first connecting teeth 21 can be located at the tail position.

[0060] Because the clamping teeth 11 and the first connecting mating part 12 are asymmetrically arranged about the center lines of the first comb frame 10 in the left and right directions, and the first connecting teeth 21 and the second connecting teeth 22 are asymmetrically arranged about the center lines of the second comb frame 20 in the left and right directions, the front and rear ends of the first comb frame 10 and the second comb frame 20 are not the same. When the tab bending limiting fixture is inserted and mated with each tab of the battery module, the tab bending limiting fixture can be placed in a preset manner, so that the corresponding tab to be bent can be clamped between the adjacent clamping rods 30 and the clamping teeth 11, avoiding clamping the wrong tab to be bent.

[0061] Of course, it is understandable that in some embodiments, the clamping teeth 11 and the first connecting parts 12 are symmetrically arranged about the center line in the left-right direction of the first comb frame 10, with the two clamping teeth 11 located at the beginning and end positions, or the two first connecting parts 12 located at the beginning and end positions, respectively. Correspondingly, the first connecting teeth 21 and the second connecting teeth 22 are symmetrically arranged about the center line in the left-right direction of the second comb frame 20, with the two first connecting teeth 21 located at the beginning and end positions, or the two second connecting teeth 22 located at the beginning and end positions, respectively.

[0062] As an implementation method, the locking adjustment member applies a force parallel to the arrangement direction of the clamping teeth 11 to the clamping rods 30 and / or clamping teeth 11 located at the beginning and end positions, so that the adjacent clamping rods 30 and clamping teeth 11 clamp the corresponding tabs to be bent.

[0063] It should be noted that, in some embodiments, references Figure 2 As shown, the two clamping teeth 11 are located at the beginning and end positions respectively, and the two first connecting teeth 21 are located at the beginning and end positions respectively; the locking adjustment member applies a forward force to the clamping tooth 11 at the beginning position and applies a backward force to the clamping tooth 11 at the end position, so that the adjacent clamping rods 30 and clamping teeth 11 clamp the corresponding electrode tabs to be bent.

[0064] In other embodiments, reference is made to... Figure 2 As shown, the two first connecting mating parts 12 are located at the beginning and end positions respectively, and the two second connecting teeth 22 are located at the beginning and end positions respectively; the locking adjustment member applies a forward force to the clamping rod 30 at the beginning position, and applies a backward force to the clamping rod 30 at the end position, so that the adjacent clamping rods 30 and clamping teeth 11 clamp the corresponding electrode tabs to be bent.

[0065] In some other embodiments, such as Figure 2 As shown, the clamping teeth 11 and the clamping rods 30 are located at the beginning and end positions, respectively. The locking adjustment member applies a forward force to one of the clamping teeth 11 and the clamping rods 30, and a backward force to the other, so that the adjacent clamping rods 30 and clamping teeth 11 clamp the corresponding tabs to be bent.

[0066] In detail, the clamping teeth 11 and clamping rod 30 are described at their respective ends:

[0067] like Figure 2 and Figure 3 As shown, the locking adjustment component includes a screw 40, one end of which has a stop portion, which can be configured as a nut. The other end of the screw 40 passes through each clamping tooth 11 and each clamping rod 30, and the nut is connected to the other end of the screw 40. The stop portion applies a rearward force to the clamping teeth 11, and the nut applies a rearward force to the clamping rods 30. The force is transmitted through the clamping teeth 11 and the clamping rods 30 to achieve the clamping of the corresponding tabs to be bent by adjacent clamping rods 30 and clamping teeth 11.

[0068] Furthermore, in order to improve the clamping effect between adjacent clamping rods 30 and clamping teeth 11, two screws 40 can be provided, with the two screws 40 respectively located at the left and right ends of the clamping rods 30.

[0069] Of course, there can be three or four screws 40. For example, there can be three screws 40, with two screws 40 located at the left and right ends of the clamping rod 30, and the remaining screws 40 located between the positive and negative tabs.

[0070] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0071] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A tooling for limiting the bending of an electrode lug, characterized in that, include: A plurality of clamping teeth (11) are arranged at intervals along the same direction, wherein the clamping teeth (11) have a first bending support surface (101); A plurality of clamping rods (30) are arranged adjacent to the clamping teeth (11) with a gap to clamp the electrode tab to be bent. The clamping rods (30) have a second bending support surface (301). The first bending support surface (101) and the second bending support surface (301) are located on the same plane, and the first bending support surface (101) and the second bending support surface (301) are adapted to support the bent portion of the electrode tab; The locking adjustment member is used at least to bring adjacent clamping rods (30) and clamping teeth (11) closer together to clamp the corresponding tabs to be bent.

2. The electrode tab bending and limiting fixture according to claim 1, characterized in that, It also includes a first connecting tooth (21) and a second connecting tooth (22). A plurality of first connecting teeth (21) and a plurality of second connecting teeth (22) are arranged at intervals in the same direction, and the first connecting teeth (21) and the second connecting teeth (22) are alternately arranged. The first connecting tooth (21) is detachably connected to the clamping tooth (11), and the second connecting tooth (22) is detachably connected to the clamping rod (30).

3. The electrode tab bending and limiting fixture according to claim 2, characterized in that, The ends of the clamping teeth (11) are provided with a first clamping portion (111) and a second clamping portion (112) that are opposite to each other and spaced apart along a first direction. The first direction is perpendicular to the arrangement direction of the clamping teeth (11) and perpendicular to the extension direction of the clamping teeth (11). The gap between the first clamping part (111) and the second clamping part (112) is engaged with the first connecting tooth (21).

4. The electrode tab bending and limiting fixture according to claim 3, characterized in that, One end of the clamping rod (30) is provided with a third clamping part (321) and a fourth clamping part (322) that are opposite to each other and spaced apart along a second direction, the second direction being parallel to the arrangement direction of the clamping rod (30); The gap between the third clamping part (321) and the fourth clamping part (322) is engaged with the second connecting tooth (22).

5. The electrode tab bending and limiting fixture according to claim 4, characterized in that, One of the third clamping part (321) and the fourth clamping part (322) is clamped in the gap between the adjacent first connecting tooth (21) and second connecting tooth (22).

6. The electrode tab bending and limiting fixture according to claim 4, characterized in that, The clamping rod (30) has the same structure at both ends. A first connecting engagement portion (12) is provided between any two adjacent clamping teeth (11), the first connecting engagement portion (12) including an insert portion (123) extending along the first direction. The gap at the other end of the clamping rod (30) is fitted into the insert (123).

7. The electrode tab bending and limiting fixture according to claim 6, characterized in that, In the arrangement of the clamping teeth (11) and the first connecting engagement part (12), one of the clamping teeth (11) and the first connecting engagement part (12) is located at the head position and the other is located at the tail position; In the arrangement of the first connecting tooth (21) and the second connecting tooth (22), one of the first connecting tooth (21) and the second connecting tooth (22) is located at the head position and the other is located at the tail position.

8. The electrode tab bending and limiting fixture according to any one of claims 1-7, characterized in that, The locking adjustment member applies a force parallel to the arrangement direction of the clamping teeth (11) to the clamping rods (30) and / or the clamping teeth (11) located at the beginning and end positions, so that the adjacent clamping rods (30) and the clamping teeth (11) clamp the corresponding tabs to be bent.

9. The electrode tab bending and limiting fixture according to claim 8, characterized in that, The locking adjustment component includes a screw (40), one end of which is provided with a stop. The other end of the screw (40) passes through each of the clamping teeth (11) and each of the clamping rods (30), and the nut is connected to the other end of the screw (40).

10. The electrode tab bending and limiting fixture according to claim 9, characterized in that, At least two screws (40) are provided, and the two screws (40) are respectively disposed near the two ends of the clamping rod (30).

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