Battery cell tab cutting jig

Abstract

The application discloses a kind of electric core tab cutting jigs, including the first L type fixed block and second L type fixed block of elastic connecting piece connection, two the first L type fixed block are connected with the magnetic link of passing through shaping slide, and shaping slide is inserted into the slide insertion cylinder of outer magnetic push plate, the first L type fixed block is fixedly provided with the positioning electromagnet of magnetic attraction with iron electric core carrier plate, and magnetic push plate is pushed away adjustable fixed mechanism, the magnetic slider with cooperation pressing plate is slidably arranged on the shaping slide, and the first L type fixed block is connected with the limiting clamping plate for blocking magnetic slider, the setting of elastic connecting piece makes adjustable fixed mechanism retractable to adapt to different size electric core plate, and by the cooperation setting of positioning electromagnet, magnetic push plate, magnetic slider and limiting clamping plate, shaping slide and cooperation pressing plate are compressed tab strip and straightened and shaped.

Description

Technical Field

[0001] This invention relates to the field of battery cell tab cutting technology, specifically to a battery cell tab cutting fixture. Background Technology

[0002] Pouch cells, also known as soft-pack batteries, refer to liquid-ion batteries encased in a polymer shell. Structurally, they are packaged in an aluminum-plastic film. In the event of a safety hazard, a pouch battery will at most swell and crack, unlike steel-cased or aluminum-cased cells, which can explode. Therefore, pouch batteries have gradually become the mainstream energy storage device. During the manufacturing process of pouch cells, cutting the tabs is a crucial step. The cutting method, tools, and precision directly affect the quality of the pouch cell. Failure to meet any of these standards can lead to deformation of the pouch cell or its tabs, or even short circuits during cutting, rendering the pouch cell unusable.

[0003] In the prior art, a soft-pack battery cell tab cutting machine with publication number "CN216398193U" includes a cutting machine base. A U-shaped cutting machine base plate is fixedly connected to the upper surface of the cutting machine base. By setting a cutting mechanism, the staggered arrangement between the lower and upper ceramic cutting blades avoids poor cutting accuracy of the soft-pack battery cell tabs. At the same time, both the lower and upper ceramic cutting blades are made of ceramic material, which can prevent the current in the equipment from being conducted to the soft-pack battery cell and causing a short circuit. In addition, by setting an I-shaped guide rail to limit the first fixed plate, the landing point of the upper ceramic cutting blade can be kept basically consistent, further improving the cutting accuracy of the soft-pack battery cell. By setting a shaping and fixing mechanism, the tabs of the soft-pack battery cell can be fixed and shaped, avoiding the problem of poor cutting accuracy caused by uneven tabs.

[0004] However, existing technologies still have significant drawbacks. For example, existing technologies fix the soft-pack battery cell by embedding it into a cutting fixture assembly. However, there are battery cells of different sizes on the market. Therefore, existing technologies require separate cutting fixture assemblies for different sized battery cells, which greatly increases production costs. In addition, existing technologies fix and shape the tabs on the battery cell by pressing and shaping the fixing mechanism. However, soft tabs are prone to bending during transportation. The direct pressing method is difficult to shape the tabs and will cause some tabs to overlap. This makes it difficult to control the length of the tabs after cutting in the subsequent cutting process, resulting in uneven tabs after cutting. Summary of the Invention

[0005] The purpose of this invention is to provide a battery cell tab cutting fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A battery cell tab cutting fixture includes a battery cell carrier plate for supporting a battery cell board, and a cutting mechanism for cutting tab strips on the battery cell board. It also includes an adjustable fixing mechanism formed by two first L-shaped fixing blocks and two second L-shaped fixing blocks. Elastic connectors are connected between the two second L-shaped fixing blocks and between adjacent first L-shaped fixing blocks and second L-shaped fixing blocks. The battery cell board is located in the adjustable fixing mechanism placed on the battery cell carrier plate, and the tab strips are located between the two first L-shaped fixing blocks and extend out of the adjustable fixing mechanism.

[0008] Two of the first L-shaped fixing blocks are fixedly connected to magnetic connecting plates extending away from the adjustable fixing mechanism at their close ends. A shaping slide bar is slidably disposed in the same direction away from the adjustable fixing mechanism through the two magnetic connecting plates. Both ends of the shaping slide bar are slidably inserted into the slide bar insert with an external magnetic push plate. A positioning electromagnet is fixedly disposed on the first L-shaped fixing block. The electromagnet is magnetically attracted to the iron battery cell carrier and magnetically pushes the magnetic push plate to slide the shaping slide bar away from the adjustable fixing mechanism. The slide bar insert is connected to an elastic pull block that pulls it closer to the adjustable fixing mechanism.

[0009] A magnetic slider is slidably mounted on the shaping slide bar along its axial direction. The magnetic slider is located between the magnetic connecting plate and the pole lug and is magnetically repelled by the magnetic connecting plate. A first L-shaped fixing block is fixedly connected to a limiting plate extending to the side of the magnetic slider away from the magnetic connecting plate. A mating pressure plate is slidably mounted on the side of the magnetic slider away from the magnetic connecting plate. The mating pressure plate is connected to an elastic push block that drives it to approach the shaping slide bar. The end of the mating pressure plate near the pole lug is beveled to facilitate its mating with the shaping slide bar to press the pole lug.

[0010] Preferably, the mating pressure plate is slidably disposed above the shaping slide bar, and the inclined surface of the mating pressure plate near the electrode tab is inclined upward along the direction near the electrode tab.

[0011] Preferably, the limiting plate is positioned below the magnetic slider on the side away from the magnetic connecting plate.

[0012] Preferably, the first L-shaped fixing block and the second L-shaped fixing block are respectively fixedly connected to a guide tube and a guide rod at their respective ends close to each other, and the two second L-shaped fixing blocks are also respectively fixedly connected to a guide tube and a guide rod at their respective ends close to each other, and the guide rod is slidably inserted into the guide tube, and the two ends of the elastic connector are respectively fixedly connected to the end of the guide rod that extends into the guide tube and the inner wall of the guide tube away from the guide rod.

[0013] Preferably, an elastic connecting rod is fixedly connected between one end of the shaping slide bar that extends into the slide bar insert and the inner wall of the slide bar insert.

[0014] Preferably, the elastic pull block is fixedly connected between the magnetic push plate and the positioning electromagnet, and the positioning electromagnet and the magnetic push plate are magnetically repelled.

[0015] Preferably, the positioning electromagnet is fixedly connected to a first guide rod that slides through the elastic pull block and the magnetic push plate, and a first cover plate is fixedly connected to the end of the first guide rod away from the positioning electromagnet.

[0016] Preferably, the magnetic slider is fixedly connected to a fixed connecting plate on the same side as the mating pressure plate, and the mating pressure plate is located between the shaping slide and the fixed connecting plate, and the elastic push block is fixedly connected between the fixed connecting plate and the mating pressure plate.

[0017] Preferably, the mating pressure plate is fixedly connected to a second guide slide rod that slides through the elastic push block and the fixed connecting plate, and a second cover plate is fixedly connected to the end of the second guide slide rod away from the mating pressure plate.

[0018] Preferably, the two second L-shaped fixing blocks are also fixedly connected to positioning electromagnets that are magnetically attracted to the iron battery cell carrier plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The battery cell tab cutting fixture of the present invention, through the cooperative arrangement of a first L-shaped fixing block, a second L-shaped fixing block and an elastic connector, allows the adjustable fixing mechanism to extend and retract to adapt to battery cell boards of different sizes. It eliminates the need to design different fixing mechanisms for battery cell boards of different sizes, greatly reducing production and manufacturing costs. Furthermore, through the cooperative arrangement of a positioning electromagnet, a magnetic push plate, a magnetic slider and a limiting plate, while fixing the adjustable fixing mechanism, the shaping slide and the cooperating pressure plate press and straighten the tab strip, avoiding the problem of errors in the length of the tab strip after cutting due to bending and overlapping of the tab strip. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation of the battery cell carrier and the cutting mechanism in this invention;

[0022] Figure 2 This is a three-dimensional schematic diagram of the cutting mechanism in this invention;

[0023] Figure 3 This is a schematic diagram of the adjustable fixing mechanism for fixing and limiting the battery cell board in this invention;

[0024] Figure 4 for Figure 3 A top-view cross-sectional diagram of the adjustable fixing mechanism in the middle;

[0025] Figure 5 for Figure 3A cross-sectional schematic diagram of the shaping slide bar and its connecting mechanism;

[0026] Figure 6 This is a schematic diagram of the limiting plate blocking the magnetic slider in this invention;

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of the magnetic slider and its connecting mechanism;

[0028] Figure 8 This is a schematic diagram illustrating the sliding of the shaping slider and the shaping of the electrode tab in this invention.

[0029] Figure 9 This is a schematic diagram of the shaping slide and the clamping plate pressing the electrode lug in this invention.

[0030] In the diagram: 1. Battery cell carrier board, 2. Cutting mechanism, 3. First L-shaped fixing block, 4. Second L-shaped fixing block, 5. Battery cell board, 51. Pole tab, 6. Elastic connector, 7. Magnetic connecting plate, 8. Shaping slide bar, 9. Slide bar insert, 10. Magnetic push plate, 11. Positioning electromagnet, 12. Elastic pull block, 13. Magnetic slider, 14. Limiting plate, 15. Matching pressure plate, 16. Elastic push block, 17. Guide insert, 18. Guide rod, 19. Elastic connecting rod, 20. First guide slide bar, 21. First cover plate, 22. Fixing connecting plate, 23. Second guide slide bar, 24. Second cover plate. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-9 The present invention provides a technical solution:

[0033] A battery cell tab cutting fixture includes a battery cell carrier plate 1 supporting a four-sided plate-shaped battery cell board 5, and a cutting mechanism 2 for cutting tab strips 51 on the battery cell board 5. The battery cell carrier plate 1 is made of iron plate that can be magnetically attracted to a positioning electromagnet 11. The cutting mechanism 2 includes a cutting blade that moves up and down under the drive of a driving electric cylinder, and the cutting blade is made of high-hardness ceramic. It also includes an adjustable fixing mechanism formed by two first L-shaped fixing blocks 3 and two second L-shaped fixing blocks 4. Elastic connectors 6 connect the two second L-shaped fixing blocks 4 to each other and between adjacent first L-shaped fixing blocks 3 and second L-shaped fixing blocks 4. The battery cell board 5, the two first L-shaped fixing blocks 3, and the two second L-shaped fixing blocks 4 are all placed on the upper surface of the battery cell carrier plate 1. Two L-shaped fixing blocks 4 are respectively fitted onto the four corners of the battery cell board 5. The elastic tension of the elastic connector 6 is used to fix the battery cell board 5 with the two first L-shaped fixing blocks 3 and the two second L-shaped fixing blocks 4. The distance between adjacent L-shaped fixing blocks can be adjusted by stretching the elastic connector 6, so that the adjustable fixing mechanism can limit and fix battery cell boards 5 of different sizes. In this embodiment, the end closer to the cutting mechanism 2 is the front end and the end farther away from the cutting mechanism 2 is the rear end. The two first L-shaped fixing blocks 3 are spaced apart on the left and right and located at the front end. The two second L-shaped fixing blocks 3 are also spaced apart on the left and right and located at the rear end. The tab strip 51 is located in front of the battery cell board 5 and extends forward into the area between the two first L-shaped fixing blocks 3, so that the cutting mechanism 2 can cut the tab strip 51.

[0034] In one embodiment, the first L-shaped fixing block 3 and the second L-shaped fixing block 4 are respectively fixedly connected to a guide tube 17 and a guide rod 18 at their respective close ends. The two second L-shaped fixing blocks 4 are also respectively fixedly connected to a guide tube 17 and a guide rod 18 at their respective close ends. The guide rod 18 is slidably inserted into the guide tube 17. The two ends of the elastic connector 6 are respectively fixedly connected to the end of the guide rod 18 that extends into the guide tube 17 and the inner wall of the guide tube 17 away from the guide rod 18. The cooperation of the guide rod 18 and the guide tube 17 guides the relative movement direction of the first L-shaped fixing block 3 and the second L-shaped fixing block 4, improves the stability of the relative movement process of the first L-shaped fixing block 3 and the second L-shaped fixing block 4, and avoids the problem of misalignment of the first L-shaped fixing block 3 and the second L-shaped fixing block 4 due to the twisting of the elastic connector 6, thereby improving the overall operational stability of the adjustable fixing mechanism.

[0035] Two first L-shaped fixing blocks 3 are fixedly connected to magnetic connecting plates 7 extending in the forward direction at their close ends. A shaping slide bar 8, also extending in the forward direction, passes through both magnetic connecting plates 7. Specifically, both magnetic connecting plates 7 have forward-extending grooves. The shaping slide bar 8, oriented left and right, passes through the grooves of the two magnetic connecting plates 7 and extends in the left and right direction. Both ends of the shaping slide bar 8 are slidably inserted into the slide bar inserts 9 of the outer magnetic push plate 10. The two slide bar inserts 9 are oriented left and right and located at the left and right ends of the shaping slide bar 8. The shaping slider 8 is positioned such that it can slide into the slider insert 9 in the left and right directions, so that the shaping slider 8 is always inserted into the slider insert 9 when the two first L-shaped fixing blocks move away from or close to each other. Furthermore, both ends of the shaping slider 8 that extend into different slider inserts 9 are fixedly connected to the inner wall of the corresponding slider insert 9 with elastic connecting rods 19. The two elastic connecting rods 19 are symmetrically arranged so that the shaping slider 8 is located between the two first L-shaped fixing blocks 3, avoiding the shaping slider 8 from shifting too far towards one of the first L-shaped fixing blocks 3.

[0036] A positioning electromagnet 11 is fixedly connected to the first L-shaped fixing block 3. This electromagnet is magnetically attracted to the iron-based battery cell carrier plate 1 and magnetically pushes the magnetic push plate 10, causing the shaping slide bar 8 to slide away from the adjustable fixing mechanism. The positioning electromagnet 11 is a square iron box structure with the wound battery cell attached externally, ensuring that the exterior of the positioning electromagnet 11 is magnetic. The slide bar insert 9 is connected to an elastic pull block 12 that pulls it closer to the adjustable fixing mechanism. Before the adjustable fixing mechanism and the battery cell plate 5 are properly adjusted on the battery cell carrier plate 1, the start switch of the positioning electromagnet 11 is turned off, allowing the adjustable fixing mechanism to move away from the adjustable fixing mechanism. The moving battery cell plate 5 slides on the battery cell carrier plate 1 to find a suitable cutting position. At the same time, the slide bar insert 9 is kept stable under the pull of the elastic pull block 12, so that the shaping slide bar 8 is located at the rear end of the magnetic connecting plate 7 slide groove. When the adjustable fixing mechanism moves to the suitable cutting position, the start switch of the positioning electromagnet 11 is closed. The positioning electromagnet 11 is energized and becomes magnetic and is attracted to the iron battery cell carrier plate 1, so that the adjustable fixing mechanism and the battery cell plate 5 are fixed, and the magnetic push plate 10 slides forward. The magnetic push plate 10 drives the shaping slide bar 8 to slide forward through the slide bar insert 9.

[0037] In one embodiment, there are two positioning electromagnets 11, which are respectively fixedly connected to the two first L-shaped fixing blocks 3 on opposite sides. The magnetic push plate 10 and the positioning electromagnets 11 are aligned front to back and magnetically repel each other. The elastic pull block 12 is fixedly connected between the magnetic push plate 10 and the positioning electromagnets 11, so that the positioning electromagnets 11 magnetically push the magnetic push plate 10 to slide forward.

[0038] Furthermore, positioning electromagnets 11 are also fixedly connected to the two second L-shaped fixing blocks 4 on their respective sides that are far apart from each other. By setting four positioning electromagnets 11, the stability of the adjustable fixing mechanism magnetically adsorbed on the battery cell carrier plate 1 is further improved.

[0039] Furthermore, the positioning electromagnet 11 located on the first L-shaped fixing block 3 is fixedly connected to a first guide slide rod 20 that slides through the elastic pull block 12 and the magnetic push plate 10. The first guide slide rod 20 guides and limits the forward and backward sliding process of the magnetic push plate 10, improving the stability of the forward and backward sliding process of the magnetic push plate 10. The first guide slide rod 20 also provides axial support for the elastic deformation process of the elastic pull block 12, improving the stability of the elastic deformation process of the elastic pull block 12. The end of the first guide slide rod 20 away from the positioning electromagnet 11 is fixedly connected to a first cover plate 21. The first cover plate 21 limits the sliding stroke of the magnetic push plate 10, preventing the magnetic push plate 10 from driving the shaping slide strip 8 to slide away from the pole tab 51.

[0040] Two magnetic sliders 13 are slidably arranged on the shaping slide bar 8 along its axial direction. Specifically, the magnetic sliders 13 are slidably arranged on the shaping slide bar 8. The magnetic sliders 13 have through holes on their left and right end faces for the shaping slide bar 8 to pass through. The two magnetic sliders 13 are symmetrically arranged on the left and right sides. The magnetic sliders 13 are located between the magnetic connecting plate 7 and the pole tab 51 and are magnetically repelled by the magnetic connecting plate 7. That is, the two magnetic sliders 13 are located on the left and right sides of the pole tab 51 respectively. The two first L-shaped fixing blocks 3 are fixedly connected with limiting plates 14 extending to the side of the magnetic slider 13 away from the magnetic connecting plate 7. When the positioning electromagnet 11 is not energized, the shaping slide bar 8 drives the magnetic slider 13 to the rear end. The limiting plates 14 block the magnetic slider 13, so that the magnetic slider 13 cannot move towards the pole tab 51. This avoids the problem that the pole tab 51 is difficult to insert between the shaping slide bar 8 and the mating pressure plate 15 due to the magnetic slider 13 moving in advance.

[0041] A mating pressure plate 15 is slidably mounted on the side of the magnetic slider 13 away from the magnetic connecting plate 7. The mating pressure plate 15 is connected to an elastic pusher 16 that moves it closer to the shaping slide bar 8. When the positioning electromagnet 11 is not energized, the mating pressure plate 15 is moved away from the pole lug 51 because the magnetic slider 13 is blocked by the limiting plate 14. The pole lug 51 only contacts the shaping slide bar 8, facilitating the insertion of the battery cell board 5 into the adjustable fixing mechanism and allowing the pole lug 51 to extend forward. After the positioning electromagnet 11 is energized, the shaping slide bar 8 drives the magnetic slider 13 to slide forward. The magnetic slider 13 slides forward and moves away from the limiting plate 14, causing it to move closer to the pole lug 51 under the magnetic repulsive force of the magnetic connecting plate 7. The mating pressure plate 15 moves closer to the pole lug 51 and, together with the shaping slide bar 8, presses the pole lug 51 down. The elastic pusher 16, which pushes the mating pressure plate 15 closer to the shaping slide bar 8, provides the pressing force. The shaping slide bar 8 continues to drive the magnetic slider 13 forward, causing the shaping slide bar 8 and the mating pressure plate 15 to slide forward while pressing the pole tab 51. This straightens and shapes the pole tab 51, making it easier for the subsequent cutting mechanism 2 to cut the straightened pole tab 51. This avoids the problem of the pole tab 51 bending and overlapping, which would cause errors in the length of the cut pole tab 51. The shaping slide bar stops sliding forward after it reaches the front end of the pole tab 51. 8 and the mating pressure plate 15 press the front end of the pole ear strip 51 to provide a clamping and fixing effect for subsequent cutting of the pole ear strip 51. The end of the mating pressure plate 15 near the pole ear strip 51 is beveled to facilitate its mating with the shaping slide 8 to press the pole ear strip 51. The beveled surface makes it easy for the mating pressure plate 15 to pass through the pole ear strip 51 and press it on the pole ear strip 51, avoiding the problem that the thickness of the pole ear strip 51 itself will block the mating pressure plate 15 and make it difficult for the mating pressure plate 15 to pass through the pole ear strip 51.

[0042] As one embodiment, a fixed connecting plate 22 is fixedly connected to the magnetic slider 13 on the same side as the mating pressure plate 15, and the mating pressure plate 15 is located between the shaping slide bar 8 and the fixed connecting plate 22. The elastic push block 16 is fixedly connected between the fixed connecting plate 22 and the mating pressure plate 15, so that the elastic push block 16 pushes the mating pressure plate 15 to move closer to the shaping slide bar 8.

[0043] Furthermore, a second guide slide rod 23 is fixedly connected to the pressure plate 15, sliding through the elastic push block 16 and the fixed connecting plate 22. The second guide slide rod 23 guides the up and down sliding process of the pressure plate 15, improving the stability of the up and down sliding process of the pressure plate 15. The second guide slide rod 23 also provides axial support for the elastic deformation process of the elastic push block 16, improving the stability of the elastic deformation process of the elastic push block 16. A second cover plate 24 is fixedly connected to the end of the second guide slide rod 23 away from the pressure plate 15. The second cover plate 24 is set to limit the sliding stroke of the pressure plate 15, avoiding the problem of the pressure plate 15 sliding too far and damaging the pole ear strip 51.

[0044] In one implementation, the pressure plate 15 is slidably positioned above the shaping slide bar 8. When installing the battery cell board 5 into the adjustable fixing mechanism, the battery cell board 5 is placed from above the adjustable fixing mechanism, so that the electrode tabs 51 on the battery cell board 5 are against the shaping slide bar 8. The inclined surface of the pressure plate 15 near the electrode tab 51 is inclined upward along the direction close to the electrode tab 51, which facilitates the pressure plate 15 passing over the electrode tab 51 and pressing the electrode tab 51 with the shaping slide bar 8. The limiting plate 14 blocks the magnetic slider 13 away from the magnetic connecting plate. The lower part of side 7 is naturally arranged below the shaping slide bar 8 with the cooperation of the pressure plate 15 sliding up and down. The inclined surface of the pressure plate 15 near the electrode tab 51 is inclined downward along the direction near the electrode tab 51. The limiting plate 14 blocks the upper part of the magnetic slider 13 away from the magnetic connecting plate 7. When installing the battery cell board 5 into the adjustable fixing mechanism, first place the battery cell board 5 on the battery cell carrier plate 1, and then put the adjustable fixing mechanism into the battery cell board 5 from top to bottom, so that the electrode tab 51 on the battery cell board 5 is attached to the lower part of the shaping slide bar 8.

[0045] Working principle: Pull out the adjustable fixing mechanism and put the battery core board 5 into the adjustable fixing mechanism. When the adjustable fixing mechanism moves to the appropriate cutting position, close the start switch of the positioning electromagnet 11. The positioning electromagnet 11 is energized and becomes magnetic and is attracted to the iron battery core carrier 1. The magnetic force of the positioning electromagnet 11 pushes the magnetic push plate 10 to slide forward. The magnetic push plate 10 drives the shaping slide bar 8 to slide forward through the slide bar insert 9. The shaping slide bar 8 drives the magnetic slider 13 to slide forward until the magnetic slider 13 slides forward and leaves the limit plate 14.

[0046] The magnetic slider 13 moves toward the pole tab 51 under the magnetic repulsion of the magnetic connecting plate 7. The pressure plate 15 moves toward the pole tab 51 and presses the pole tab 51 together with the shaping slide 8. The elastic push block 16 that pushes the pressure plate 15 toward the shaping slide 8 provides the pressing force. The shaping slide 8 continues to drive the magnetic slider 13 to slide forward, so that the shaping slide 8 and the pressure plate 15 slide forward while pressing the pole tab 51. This straightens and shapes the pole tab 51, making it easier for the subsequent cutting mechanism 2 to cut the straightened pole tab 51.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery cell tab cutting fixture, comprising a battery cell carrier plate (1) supporting a battery cell board (5) and a cutting mechanism (2) for cutting tab strips (51) on the battery cell board (5), characterized in that: It also includes an adjustable fixing mechanism formed by two first L-shaped fixing blocks (3) and two second L-shaped fixing blocks (4), and elastic connectors (6) are connected between the two second L-shaped fixing blocks (4) and between adjacent first L-shaped fixing blocks (3) and second L-shaped fixing blocks (4). The battery cell board (5) is located in the adjustable fixing mechanism placed on the battery cell carrier board (1), and the electrode strip (51) is located between the two first L-shaped fixing blocks (3) and extends out of the adjustable fixing mechanism. Two of the first L-shaped fixing blocks (3) are fixedly connected to magnetic connecting plates (7) extending in the direction away from the adjustable fixing mechanism at their close ends. The same shaping slide bar (8) is slidably arranged in the direction away from the adjustable fixing mechanism in the two magnetic connecting plates (7). Both ends of the shaping slide bar (7) are slidably inserted into the slide bar insert (9) with the outer magnetic push plate (10). The first L-shaped fixing block (3) is fixedly provided with a positioning electromagnet (11) that is magnetically attracted to the iron battery core carrier plate (1) and magnetically pushes the magnetic push plate (10) to slide the shaping slide bar (8) away from the adjustable fixing mechanism. The slide bar insert (9) is connected to an elastic pull block (12) that pulls it closer to the adjustable fixing mechanism. A magnetic slider (13) is slidably disposed on the shaping slide (8) along its axial direction. The magnetic slider (13) is located between the magnetic connecting plate (7) and the pole tab (51) and is magnetically repelled by the magnetic connecting plate (7). A first L-shaped fixing block (3) is fixedly connected to a limiting plate (14) extending to the side of the magnetic slider (13) away from the magnetic connecting plate (7). A mating pressure plate (15) is slidably disposed on the side of the magnetic slider (13) away from the magnetic connecting plate (7). An elastic push block (16) is connected to the mating pressure plate (15) to drive it closer to the shaping slide (8). The end of the mating pressure plate (15) close to the pole tab (51) is obliquely cut into an inclined surface to facilitate its mating with the shaping slide (8) to press the pole tab (51).

2. The battery cell tab cutting fixture according to claim 1, characterized in that: The mating pressure plate (15) is slidably disposed above the shaping slide (8), and the inclined surface of the mating pressure plate (15) near the pole tab (51) is inclined upward along the direction near the pole tab (51).

3. The battery cell tab cutting fixture according to claim 2, characterized in that: The limiting plate (14) blocks the lower part of the magnetic slider (13) on the side away from the magnetic connecting plate (7).

4. The battery cell tab cutting fixture according to claim 1, characterized in that: The first L-shaped fixing block (3) and the second L-shaped fixing block (4) are respectively fixedly connected to a guide tube (17) and a guide rod (18) at their respective close ends. The two second L-shaped fixing blocks (4) are also respectively fixedly connected to a guide tube (17) and a guide rod (18) at their respective close ends. The guide rod (18) slides into the guide tube (17). The two ends of the elastic connector (6) are respectively fixedly connected to the end of the guide rod (18) that extends into the guide tube (17) and the inner wall of the guide tube (17) that is away from the guide rod (18).

5. The battery cell tab cutting fixture according to claim 1, characterized in that: An elastic connecting rod (19) is fixedly connected between one end of the shaping slide bar (8) that extends into the slide bar insert (9) and the inner wall of the slide bar insert (9).

6. The battery cell tab cutting fixture according to claim 1, characterized in that: The elastic pull block (12) is fixedly connected between the magnetic push plate (10) and the positioning electromagnet (11), and the positioning electromagnet (11) and the magnetic push plate (10) are magnetically repulsive.

7. The battery cell tab cutting fixture according to claim 6, characterized in that: The positioning electromagnet (11) is fixedly connected to a first guide slide rod (20) that slides through the elastic pull block (12) and the magnetic push plate (10), and a first cover plate (21) is fixedly connected to the end of the first guide slide rod (20) away from the positioning electromagnet (11).

8. The battery cell tab cutting fixture according to claim 1, characterized in that: The magnetic slider (13) is fixedly connected to a fixed connecting plate (22) on the same side as the mating pressure plate (15), and the mating pressure plate (15) is located between the shaping slide (8) and the fixed connecting plate (22), and the elastic push block (16) is fixedly connected between the fixed connecting plate (22) and the mating pressure plate (15).

9. The battery cell tab cutting fixture according to claim 8, characterized in that: The mating pressure plate (15) is fixedly connected to a second guide slide rod (23) that slides through the elastic push block (16) and the fixed connecting plate (22), and a second cover plate (24) is fixedly connected to one end of the second guide slide rod (23) away from the mating pressure plate (15).

10. The battery cell tab cutting fixture according to claim 1, characterized in that: The two second L-shaped fixing blocks (4) are also fixedly connected to positioning electromagnets (11) that are magnetically attracted to the iron battery cell carrier plate (1).

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