Battery tab rolling tool

Abstract

The invention discloses a battery tab rolling tool. The battery tab rolling tool comprises a battery placing module, a battery moving module and a battery tab rolling module, the battery placement module is used for limiting and restraining the battery; the battery moving module is connected with the battery placing module and is used for longitudinally moving the battery placing module and the battery combination on the battery placing module back and forth in the horizontal direction; the left side and the right side of the battery placing module are respectively provided with a battery tab rolling module; and the two battery tab rolling modules are used for rolling tabs on the two sides of the battery on the battery placing module, so that rolling operation on the tabs on the two sides of the battery is realized. The tab shaping device is scientific in design, can efficiently and reliably perform tab shaping operation (particularly rolling tab shaping operation) on tabs on two sides of a double-side tab soft package at the same time, remarkably improves the tab shaping working efficiency of a double-side tab battery, is beneficial to reducing the overall production cost of the double-side tab battery, and has great practical significance.

Description

Technical Field

[0001] This invention relates to the field of pouch battery assembly technology, and in particular to a battery tab rolling tool for tab shaping operations in the assembly production of double-sided tab pouch batteries. Background Technology

[0002] Currently, see Figure 7 As shown, in the manufacturing process of a soft-pack battery module, multiple batteries 5 (battery 5 is a soft-pack battery, and the battery has an external battery protection frame) need to be stacked together to form a battery assembly. Then, the battery tabs 50 (positive electrode is aluminum, negative electrode is copper or copper plated with nickel) in the battery assembly are laser welded to the busbar matching the battery module to achieve electrical connection. However, the tabs made by punching or cutting have defects such as burrs and microcracks, and the multi-layer tabs are in a fluffy state after stacking, which easily leads to a large number of micro gaps between them and the busbar. If the tabs of multiple batteries are directly laser welded to the busbar in this state, it will lead to a series of serious problems: (1) Due to the poor interface adhesion, the laser energy absorption is uneven, resulting in severe spatter, pores and poor welding; (2) The contact resistance is too high, which leads to abnormal heat generation during operation and poses a risk of thermal runaway; (3) The mechanical strength of the connection point is poor and cannot withstand the vibration stress during system operation, resulting in low reliability. Therefore, for pouch batteries with dual tabs, it is necessary to perform roll flattening and shaping operations on both sides of multiple pouch batteries with dual tabs. Roll flattening and shaping operations help to eliminate defects such as burrs and microcracks in the tabs, as well as remove air between the tab layer and the busbar, forming a dense, flat, and clean metal connection interface.

[0003] However, currently, the vast majority of pouch battery tab rolling and shaping operations use vertical rollers to roll the batteries. For batteries with dual tabs, the process involves rolling and shaping one side of the tabs first, then adjusting the battery orientation, and then rolling the other side of the tabs. This method is inefficient and cumbersome, significantly increasing the overall production cost of batteries with dual tabs.

[0004] Therefore, there is an urgent need to develop a technology that can solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to address the technical deficiencies of existing technologies by providing a battery tab rolling tool.

[0006] To this end, the present invention provides a battery tab rolling tool, including a battery placement module, a battery moving module and a battery tab rolling module;

[0007] Battery placement module, used to limit and constrain the battery;

[0008] A battery moving module, connected to a battery placement module, is used to move the battery placement module and the battery assembly on the battery placement module longitudinally back and forth in the horizontal direction. The battery assembly includes multiple batteries stacked on top of each other.

[0009] A battery tab rolling module is provided on each of the left and right sides of the battery placement module;

[0010] Two battery tab rolling modules are used to roll the tabs on both sides of the battery on the battery placement module to achieve the rolling operation of the battery tabs on both sides.

[0011] As can be seen from the technical solution provided by the present invention above, compared with the prior art, the present invention provides a battery tab rolling tool with a scientifically designed structure, which can efficiently and reliably perform tab shaping operations (specifically, tab rolling shaping operations) on both sides of the double-sided tab soft pack at the same time, which significantly improves the tab shaping efficiency of double-sided tab batteries, helps to reduce the overall production cost of double-sided tab batteries, and has significant practical significance.

[0012] After testing, this invention is found to be a simple, universal, and practical tooling for rolling the tabs of pouch batteries. Scientifically designed, by adjusting the dimensions of the vertical limiting baffle, the number of rollers, and the dimensions of the roller support plate, this tooling can be applied to the tab rolling operation (i.e., tab rolling and shaping operation) of pouch batteries with double tabs of different specifications.

[0013] By applying this invention, it is beneficial to quickly roll and shape multiple pouch battery tabs of different sizes (compatible with single and dual-sided tab batteries), thereby improving work efficiency and enhancing the appearance of the batteries. Attached Figure Description

[0014] Figure 1a A three-dimensional structural schematic diagram of a battery tab rolling tool provided by the present invention;

[0015] Figure 1b A three-dimensional structural diagram of a battery tab rolling tool provided by the present invention. Figure 2 ;

[0016] Figure 2 A schematic diagram of the battery placement module in a battery tab rolling tooling provided by the present invention;

[0017] Figure 3 A schematic diagram of the structure of the battery moving module in a battery tab rolling tooling provided by the present invention;

[0018] Figure 4 A bottom view of the structure of the battery moving module in a battery tab rolling tooling provided by the present invention;

[0019] Figure 5 A schematic diagram of the structure of the battery tab rolling module in a battery tab rolling tooling provided by the present invention;

[0020] Figure 6 A schematic diagram of the tooling box structure in a battery tab rolling tooling provided by the present invention;

[0021] Figure 7 A three-dimensional structural diagram of a soft-pack battery assembly (which includes multiple double-sided tab soft-pack batteries stacked together and having an external battery protection frame) required for the tab rolling operation of a battery tab rolling tool provided by the present invention.

[0022] Figure 8 This invention provides a schematic diagram of the working state structure of a battery tab rolling tool on which a soft-pack battery assembly is placed. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0025] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0026] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] See Figures 1a to 1b , Figures 2 to 8 The present invention provides a battery tab rolling tool, including a battery placement module 1, a battery moving module 2 and a battery tab rolling module 3;

[0028] Battery placement module 1 is used to limit and constrain the battery;

[0029] The battery moving module 2 is connected to the battery placement module 1 and is used to move the battery placement module 1 and the battery assembly on the battery placement module 1 back and forth in the horizontal direction. The battery assembly includes multiple batteries 5 stacked on top of each other (specifically, multiple double-sided tab soft-pack batteries stacked on top of each other).

[0030] A battery tab rolling module 3 is provided on the left and right sides of the battery placement module 1;

[0031] Two battery tab rolling modules 3 are used to roll the tabs on both sides of the battery on the battery placement module 1 to achieve the rolling operation of the battery tabs on both sides.

[0032] It should be noted that in this invention, multiple rollers 33 are respectively provided on the opposite side of the two battery tab rolling modules 3. The rollers 33 are used to roll the tabs on the battery. Specifically, the rollers on the two battery tab rolling modules 3 squeeze the tabs on both sides of the battery, and the battery moving module 2 drives the moving battery placement module 1 and the battery on the battery placement module 1 to move, so that the rollers roll the tabs on the battery.

[0033] In this invention, the battery placement module 1 includes a base plate 11, an insulating pad 12, and a vertical limiting baffle 13;

[0034] An insulating pad 12 is fixedly installed on the top of the base plate 11;

[0035] A battery is placed on top of the insulating pad 12;

[0036] At the top four corners of the base plate 11, there is a vertically distributed vertical limiting baffle 13.

[0037] In practice, a battery receiving cavity for placing the battery assembly is formed between the four vertical limiting baffles 13.

[0038] It should be noted that the shape and size of the battery housing cavity correspond to the shape and size of the remaining part of the battery after removing the two tabs (i.e., the main body of the battery).

[0039] It should be noted that the insulating pad 12 is centrally bolted to the base plate 11, and the four vertical limiting baffles 13 are respectively bolted to the four corners of the base plate 11.

[0040] It should be noted that the base plate 11, the insulating pad 12 and the four vertical limiting baffles 13 all have screw holes, which are used for bolting and fixing.

[0041] In this invention, the battery moving module 2 includes a first cylinder 21, a slide rail 22, a slide rail base plate 23, and a slide rail top plate 24.

[0042] The top plate 24 of the slide rail is located directly above the bottom plate 23 of the slide rail;

[0043] The cylinder body of the first cylinder 21, which is longitudinally distributed, is fixedly installed at the top horizontal middle position of the slide rail base plate 23.

[0044] The first cylinder 21 has output shafts at both ends, which are fixedly connected to the bottom ends of the slide rail top plate 24.

[0045] At the bottom left and right ends of the slide rail top plate 24, there is a longitudinally distributed slide rail 22 (the slide rail top plate 24 is specifically the guide rail part that connects to the slide rail 22);

[0046] The sliders at the bottom of the two slide rails 22 are respectively connected to the top left and right ends of the slide rail base plate 23 (fixed connection);

[0047] On the top left and right sides of the slide rail base plate 23, a vertically distributed connecting plate 25 is fixedly installed respectively;

[0048] The tops of the two connecting plates 25 are connected to the bottom left and right ends of the base plate 11 in the battery placement module 1.

[0049] It should be noted that the sliding fit connection structure between the slide rail (i.e., guide rail) and the slider is a common, technologically mature, and widely used structure, and will not be elaborated on here.

[0050] It should be noted that, in this invention, the piston rod (i.e., output shaft) on the first cylinder 21 and the slider on the slide rail 22 are respectively bolted to the slide rail base plate 23. The first cylinder 21 is bolted to the bottom front and rear ends of the slide rail top plate 24 through cylinder brackets at both ends. At the same time, the guide rail of the slide rail 22 is bolted to the slide rail top plate 24. The two ends of the connecting plate 25 are respectively bolted and fixed to the slide rail base plate 23 and the base plate 11 of the battery placement module 1. When the first cylinder 21 moves, its piston rod moves, which simultaneously drives the slide rail base plate 23 and the slide rail 22 to move. Through the movement of the connecting plate 25 bolted to the slide rail base plate 23, the battery placement module 1 is driven (the piston rod, slider, and guide rail are all provided with screw fixing holes, and the base plate, top plate, and connecting plate are all provided with screw fixing holes).

[0051] It should be noted that the first cylinder 21 is a common and technologically mature cylinder. For example, a cylinder with model number RMS25X100LB produced by Airtac International Group can be used. This cylinder moves back and forth in the horizontal direction. By connecting with the battery placement module 1, it drives the battery placement module 1 to move back and forth in the horizontal direction. The battery module is placed in the battery placement module 1, and at the same time, the battery module also moves back and forth in the horizontal direction.

[0052] In practice, a limiter 26 is installed at each of the four corners of the top of the slide rail top plate 24.

[0053] Furthermore, the limiter 26 includes a limit rod, and the side of the limit rod facing the bottom plate 11 in the battery placement module 1 is provided with an elastic head (e.g., a rubber sleeve).

[0054] The elastic head and the base plate 11 are located on the same horizontal plane (i.e., at the same height).

[0055] It should be noted that in this invention, the limiter 26 is bolted to the slide rail top plate 24. When the first cylinder 21 moves, the slide rail top plate 24 and the limiter 26 are stationary. When the battery placement module 1 moves back and forth in the horizontal direction, it will contact the limiter 26. By adjusting the position distance of the limiter 26, the stroke of the battery placement module 1 in the horizontal direction can be limited, thereby preventing the battery tab rolling module 3 from rolling the non-tab area of ​​the battery.

[0056] It should be noted that the output ends on both sides of the first cylinder 21 and the top of the guide rail portion of the slide rail 22 are bolted to the top plate 24 of the slide rail. The bottom of the cylinder body of the first cylinder 21 and the bottom of the slider on the slide rail 22 are bolted to the bottom plate 23 of the slide rail. The lower ends of the two connecting plates 25 are bolted to the bottom plate 23 of the slide rail, and the upper ends of the two connecting plates 25 are bolted to the bottom left and right ends of the bottom of the base plate 11 in the battery placement module 1. That is, the battery moving module 2 moves the battery placement module 1 and the battery fixed on the battery placement module 1 back and forth in the longitudinal direction by moving the output shafts on both sides of the first cylinder 21 and the slider on the slide rail 22. For example, by moving the output shaft on the first cylinder 21 forward, the slide rail base plate 23 connected to the cylinder body of the first cylinder 21 and the two connecting plates 25 on the slide rail base plate 23 move forward together. Then, by moving the two connecting plates 25 forward, the base plate 11 in the battery placement module 1 moves forward, thereby causing the battery placed in the battery placement module 1 to move forward together.

[0057] It should be noted that the main structure of the battery moving module 2 is fixed under the tooling cover 42 in the tooling box structure 4. It drives the battery placement module 1 by means of two connecting plates 25 connected to the slide rail base plate 23 through the slide rail transmission, thereby moving the battery on the battery placement module 1.

[0058] In this invention, the battery tab rolling module 3 includes two second cylinders 31, two cylinder fixing seats 32, multiple rollers 33 and two roller support plates 34.

[0059] The two cylinder mounting brackets 32 are arranged symmetrically on the left and right sides;

[0060] A second cylinder 31 is fixedly installed on each cylinder mounting base 32;

[0061] The two second cylinders 31 are arranged symmetrically on the left and right sides;

[0062] A roller support plate 34 is provided on the output end (i.e., piston rod) on the opposite side of the two second cylinders 31;

[0063] On each side of the two roller support plates 34, there is at least one rotatable (specifically, horizontally rotatable) roller 33.

[0064] It should be noted that in this invention, the roller 33 is made of a high-hardness, high-wear-resistant material, and its surface is precision ground and polished to ensure that the rolling process is undamaged and pollution-free.

[0065] In practice, on the opposite side of the two roller support plates 34, roller support frames 340 are respectively arranged from top to bottom.

[0066] Each roller support 340 is pivotally (i.e. rotatably) connected to at least one horizontally placed roller 33.

[0067] Furthermore, the roller support frame 340 includes support plates spaced vertically apart;

[0068] The two support plates are connected on opposite sides by vertically distributed connecting rods;

[0069] At least one roller 33 is fitted on the circumferential outer wall of the connecting rod.

[0070] Furthermore, a bearing mounting hole is provided at the center of roller 33;

[0071] A bearing (e.g., a ball bearing) is installed at the bearing mounting hole;

[0072] The inner ring of the bearing is connected to the connecting rod (fixed connection).

[0073] It should be noted that the second cylinder 31 is fixed to an external mounting platform (e.g., on an external tooling) via a cylinder mounting base 32. The roller support plate 34 is connected to the second cylinder 31. The movement of the second cylinder 31 causes the roller 33 to move laterally, making it contact the tabs on the left and right sides of the battery. The two second cylinders 31 can move in opposite directions.

[0074] It should be noted that the battery tab rolling module 3 is located on both sides of the tooling of this invention, and all components are identical and symmetrically placed.

[0075] It should also be noted that the battery tab rolling module 3 is only used to squeeze the battery. In the working state, the roller 33 contacts the battery tab, and the battery moving module 2 drives the battery placement module 1 to move, thereby moving the battery. That is, after the battery moves, the tab is rolled and shaped by the roller.

[0076] It should also be noted that, in this invention, the battery is placed vertically in the battery placement module 1. That is, the thickness direction of the battery is the front-to-back direction, the width direction of the battery is vertical, and there are tabs on the left and right sides of the battery.

[0077] It should be noted that the second cylinder 31 is a common and technologically mature cylinder, such as the ACQ40×45SB cylinder manufactured by Airtac International Group Co., Ltd. Both ends of the second cylinder 31 are bolted and fixed to the cylinder mounting base 32 and the roller support plate 34, respectively. The movement of the piston rod of the second cylinder 31 drives the roller support plate 34, thereby causing the roller 33 to move horizontally until it contacts and presses the battery tabs. In the soft-pack battery tab flattening fixture provided by this invention, the core function of the second cylinder 31 that fixes the roller is to act as a controllable and flexible "pressure source," precisely applying stable vertical pressure to the roller.

[0078] In this invention, the roller 33 plays the following specific roles: First, applying pressure: as the force application terminal, it accurately and evenly transmits the huge pressure generated by the rolling system to the surface of the tab; second, plastic deformation: using its high-hardness surface, it causes the tab metal to undergo controllable and permanent plastic deformation, thereby flattening the uneven surface; third, densification: through rolling, it removes air between the multiple layers of tabs and between them and the copper busbar, eliminating microscopic gaps and compacting them into a dense whole; fourth, shaping: ultimately determining the thickness, flatness, and surface quality of the tab after rolling.

[0079] It should be noted that the roller 33 possesses the following characteristics: First, it has high hardness and high strength: the hardness of the roller material is much higher than that of the tab material (aluminum or copper). According to the principles of materials science, when the two come into contact, the component with higher hardness will not deform itself, thus forcing the component with lower hardness (the tab) to undergo plastic deformation, rather than being worn down. Second, it has a high-gloss surface: its mirror-like polished surface, when in contact with the tab, provides smooth sliding and rolling rather than "scraping," thus preventing the generation of debris or scratches on the tab surface during the rolling process, ensuring a clean interface. The roller itself has extremely high roundness and cylindricity, ensuring that the pressure distribution along the entire contact line is uniform during the rolling process, preventing situations where the pressure is high in the middle and low at the edges. Under the action of the second cylinder 31, the roller 33 compresses the battery tab with constant pressure. This "constant pressure control mode" ensures that regardless of any slight thickness fluctuations in the tab stack, the pressure force borne by each point is the same, thus guaranteeing a high degree of consistency in the rolling effect.

[0080] In a specific implementation of the present invention, the battery tab rolling tooling of the present invention also includes a tooling box structure 4.

[0081] Tooling box structural component 4 includes tooling box body 41 and tooling top cover 42;

[0082] Tooling cover 42 is located above tooling box 41;

[0083] In practice, the rear side of the tooling cover 42 is connected to the tooling box body 41 by two hinges 43;

[0084] The left and right sides of the tool cover 42 are also connected to the left and right inner walls of the tool box 41 by a support rod 44.

[0085] In practice, the bottom of the horizontal middle section of the tooling cover 42 is fixedly connected to the top surface of the slide rail top plate 24 in the battery moving module 2.

[0086] It should be noted that the slide rail top plate 24 in the battery moving module 2 is bolted to the tooling cover 42.

[0087] In practice, one end of the support rod 44 is connected to the rear end of the bottom surface of the tooling cover 42;

[0088] The other end of the support rod 44 is connected to the inner walls of the left and right sides of the tooling box 41.

[0089] It should be noted that the support rod 44 is a mature and widely used mechanical component, such as the HFX36-200 automatic locking telescopic support rod manufactured by Dongguan Yiheda Automation Co., Ltd. One end of each of the two support rods 44 on the left and right sides is bolted to the bottom of the tooling cover 42, and the other end is bolted to the inner walls of the left and right sides of the tooling box 41. The two support rods 44 on both sides (i.e., the left and right support rod assemblies) allow for the opening and closing of the tooling cover 42, enabling visualized operation of the interior of the tooling box 41 and the bottom of the tooling cover 42 (specifically, installation and maintenance of wiring harnesses and structural components as needed by the customer).

[0090] In specific implementation, when the tooling cover 42 is closed (i.e., when it is on top of the tooling box 41), the tooling cover 42 is provided with an opening at the position corresponding to each limiter 26 in the battery moving module 2, so that the limiter 26 can pass upward and be exposed on the top surface of the tooling cover 42.

[0091] It should be noted that, in this invention, the tooling box structure 4 is hollow inside and the tooling box body 41 has holes around its perimeter for mounting devices and facilitating the passage of relevant wire harnesses and conduits.

[0092] It should be noted that the tab rolling and shaping operation performed in this invention plays the following roles:

[0093] First, it has an interface pretreatment function: it eliminates defects such as electrode burrs and microcracks, removes air between electrode layers and between the electrode and busbar, and forms a dense, flat, and clean metal connection interface. This function transforms a "non-weldable" interface into a "weldable" interface, providing the necessary prerequisite for subsequent laser welding.

[0094] Secondly, it optimizes electrical performance: it increases the actual contact area between metals, significantly reducing contact resistance. This effectively reduces energy loss and heat generation during battery operation, improves energy efficiency, and fundamentally reduces safety risks caused by overheating due to resistance.

[0095] Third, it enhances mechanical properties: the cold working effect of rolling causes work hardening of the tab material, improving its tensile strength, hardness, and fatigue strength. This enhances the mechanical reliability of the connection points against vibration and impact, ensuring the structural integrity of the battery pack throughout its entire life cycle.

[0096] Fourth, it plays a role in ensuring consistent quality: This process standardizes the initial conditions for laser welding, broadens the welding process window, significantly improves the welding yield, almost eliminates false welding, greatly reduces rework and scrap, lowers production costs, and ensures the consistency of the strength of each weld point.

[0097] To better understand the technical solution of the present invention, the working process of the present invention is described below.

[0098] First, place the battery in battery placement module 1;

[0099] Then, by activating the two second cylinders 31 in the battery tab rolling module 3, the two second cylinders 31 are moved, driving the rollers 33 installed on the two roller support plates 34 to squeeze the tabs on both sides of the battery. At the same time, the battery moving module 2 drives the battery placement module 1, thereby moving the battery, so that the rollers 33 on both sides perform rolling and shaping operations on the tabs on both sides of the battery.

[0100] In this invention, it should be noted that by adjusting the size of the vertical limiting baffle 13, the number of rollers 33, and the size of the roller support plate 34, the tooling of this invention can be applied to the tab rolling operation (i.e., tab rolling and shaping operation) of double-sided tab soft-pack batteries of different specifications.

[0101] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A tooling for rolling out battery tabs, characterized in that, It includes a battery placement module (1), a battery moving module (2), and a battery tab rolling module (3); Battery placement module (1) is used to limit and constrain the battery; The battery moving module (2) is connected to the battery placement module (1) and is used to move the battery placement module (1) and the battery assembly on the battery placement module (1) longitudinally back and forth in the horizontal direction. The battery assembly includes multiple batteries (5) stacked on top of each other. A battery tab rolling module (3) is provided on the left and right sides of the battery placement module (1); Two battery tab rolling modules (3) are used to roll the tabs on both sides of the battery on the battery placement module (1) to achieve the rolling operation of the tabs on both sides of the battery.

2. The battery tab rolling fixture as described in claim 1, characterized in that, The battery placement module (1) includes a base plate (11), an insulating pad (12), and a vertical limiting baffle (13); An insulating pad (12) is fixedly installed on the top of the base plate (11); A battery is placed on top of the insulating pad (12); At the top four corners of the base plate (11), there is a vertically distributed vertical limiting baffle (13).

3. The battery tab rolling fixture as described in claim 2, characterized in that, A battery housing cavity for placing the battery assembly is formed between the four vertical limiting baffles (13).

4. The battery tab rolling fixture as described in claim 1, characterized in that, The battery moving module (2) includes a first cylinder (21), a slide rail (22), a slide rail base plate (23), and a slide rail top plate (24); The top plate (24) of the slide rail is located directly above the bottom plate (23) of the slide rail; The cylinder body of the first cylinder (21) is fixedly installed at the top horizontal middle position of the slide rail base plate (23); The first cylinder (21) has output shafts at both ends, which are fixedly connected to the bottom ends of the slide rail top plate (24). At the bottom left and right ends of the top plate (24) of the slide rail, there is a longitudinally distributed slide rail (22); The sliders at the bottom of the two slide rails (22) are respectively connected to the top left and right ends of the slide rail base plate (23); On the top left and right sides of the slide rail base plate (23), a vertically distributed connecting plate (25) is fixedly installed respectively; The tops of the two connecting plates (25) are connected to the bottom left and right ends of the base plate (11) in the battery placement module (1).

5. The battery tab rolling fixture as described in claim 4, characterized in that, A limiter (26) is installed at each of the four corners of the top of the slide rail top plate (24).

6. The battery tab rolling fixture as described in claim 1, characterized in that, The battery tab rolling module (3) includes two second cylinders (31), two cylinder fixing seats (32), multiple rollers (33) and two roller support plates (34); The two cylinder mounting bases (32) are arranged symmetrically on the left and right sides; A second cylinder (31) is fixedly installed on each cylinder mounting base (32); The two second cylinders (31) are arranged symmetrically on the left and right sides; A roller support plate (34) is provided on the output end of each of the two second cylinders (31) on opposite sides; On opposite sides of the two roller support plates (34), at least one rotatable roller (33) is provided.

7. The battery tab rolling fixture as described in claim 6, characterized in that, On the opposite side of the two roller support plates (34), roller support frames (340) are respectively arranged from top to bottom; Each roller support (340) is pivotally connected to at least one horizontally placed roller (33).

8. The battery tab rolling fixture as described in claim 7, characterized in that, The roller support frame (340) includes support plates spaced apart vertically; The two support plates are connected on opposite sides by vertically distributed connecting rods; At least one roller (33) is fitted on the circumferential outer wall of the connecting rod.

9. The battery tab rolling fixture as described in claim 8, characterized in that, A bearing mounting hole is provided at the center of the roller (33); A bearing is installed at the bearing mounting hole; The inner ring of the bearing is connected to the connecting rod.

10. The battery tab rolling fixture as described in any one of claims 1 to 9, characterized in that, It also includes tooling box structural components (4); The tooling box structure (4) includes a tooling box body (41) and a tooling top cover (42); The tool cover (42) is located above the tool box body (41); The bottom of the horizontal middle section of the tool cover (42) is fixedly connected to the top surface of the slide rail top plate (24) in the battery moving module (2).

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