A separator clamping device for lithium battery production

Abstract

The utility model discloses a diaphragm clamping device for lithium battery production relates to lithium battery production technical field, and the utility model discloses a bottom plate is equipped with the adjusting frame on the upside of bottom plate, and the upper surface of bottom plate is equipped with the side pressure block symmetry, and the biaxial screw rod is rotatably equipped in the adjusting frame, and the motor is fixedly equipped on the one side of adjusting frame, and the output of motor penetrates adjusting frame and is fixedly connected with biaxial screw rod, and the outer surface of biaxial screw rod is equipped with the moving block symmetry screw thread, and the lower surface of moving block is fixedly equipped with the clamping plate, and the inboard of clamping plate is fixedly equipped with the antiskid board, and the upper surface of adjusting frame is equipped with the sliding slot, and the diaphragm clamping device for lithium battery production provided by the utility model makes the clamping plate synchronous and balanced pressure through horizontal biaxial screw rod transmission, and the lateral electric push rod drive pressure is controllable, and the antiskid board increases the friction and prevents the skid, and adapts to the light and thin easy deformation diaphragm, and the diaphragm of different size thickness can be adjusted steplessly the spacing and the lateral pressure degree of clamping plate, and the universality is strong.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a diaphragm clamping device for lithium battery production. Background Technology

[0002] Lithium-ion battery production is a complex and precise process involving multiple stages, from raw material processing to final product testing. Each step has a critical impact on the battery's performance, safety, and lifespan. In the mid-stage assembly process of lithium-ion battery production (especially in the winding or stacking process), separator clamping is an operation taken to ensure the stability and safety of the cell structure. Its core purpose is to fix the position of the separator and prevent it from shifting, wrinkling, or loosening during subsequent processes or battery use.

[0003] However, existing technologies still have the following problems: Existing lithium battery production separator clamping devices mostly suffer from poor clamping stability. They often employ unidirectional or asynchronous transmission structures, which can easily lead to uneven clamping forces on both sides, causing separator misalignment and wrinkles. Furthermore, they lack anti-slip design, making it prone to slippage when used with thin and easily deformable lithium battery separators. At the same time, they typically have poor adjustability, with limited adjustment of clamping plate spacing and clamping force, making it difficult to adapt to separators of different sizes and thicknesses, resulting in a narrow range of applications.

[0004] To address the aforementioned problems, the inventors have proposed a diaphragm clamping device for lithium battery production. Utility Model Content

[0005] To address the issues of poor clamping stability and limited adjustability, the present invention aims to provide a diaphragm clamping device for lithium battery production.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a diaphragm clamping device for lithium battery production, comprising a base plate, an adjustment frame on the upper side of the base plate, side pressure blocks symmetrically arranged on the upper surface of the base plate, a bidirectional lead screw rotatably arranged inside the adjustment frame, a motor fixedly arranged on one side of the adjustment frame, and the output end of the motor passing through the adjustment frame and fixedly connected to the bidirectional lead screw, a moving block symmetrically threaded on the outer surface of the bidirectional lead screw, a clamping plate fixedly arranged on the lower surface of the moving block, an anti-slip plate fixedly arranged on the inner side of the clamping plate, a sliding groove opened on the upper surface of the adjustment frame, a slider fixedly arranged on the upper surface of the moving block, and the slider being engaged in the sliding groove, a positioning post fixedly arranged inside the adjustment frame, and the positioning post passing through the moving block, and support plates symmetrically fixedly arranged on the upper surface of the base plate, with the upper end of the support plates fixedly connected to the adjustment frame.

[0007] Preferably, side plates are symmetrically fixed on both sides of the base plate, a vertical plate is fixed on the upper surface of the side plate, and an electric push rod is fixed on the inner side of the vertical plate. The output end of the electric push rod is fixedly connected to the side pressure block. Limiting grooves are symmetrically opened on both sides of the base plate, and a limiting block is fixed on the lower surface of the side pressure block, and the limiting block is locked in the corresponding limiting groove.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The lateral clamping of this utility model is achieved through bidirectional screw transmission, which ensures synchronous movement and balanced pressure of the clamping plates on both sides; the lateral drive is achieved through an electric push rod, which makes the pressure controllable and prevents the diaphragm from shifting or wrinkling due to uneven force; the anti-slip plate increases the friction between the clamping plate and the diaphragm, further preventing slippage, which is suitable for the processing needs of thin and easily deformable materials such as lithium battery diaphragms.

[0009] 2. This utility model can achieve stepless adjustment of the clamping plate spacing by driving a bidirectional lead screw with a motor. The electric push rod can adjust the clamping force of the side pressure block by controlling the stroke. It is suitable for clamping requirements of diaphragms of different sizes and thicknesses and has strong versatility. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the adjustment frame of this utility model.

[0013] Figure 3 This is an exploded view of one side of the base plate structure of this utility model.

[0014] In the diagram: 1. Base plate; 2. Adjustment frame; 21. Two-way lead screw; 22. Motor; 23. Moving block; 24. Clamping plate; 25. Slide groove; 26. Slider; 27. Anti-slip plate; 28. Support plate; 29. ​​Positioning column; 3. Side pressure block; 31. Side plate; 32. Vertical plate; 33. Electric push rod; 34. Limiting groove; 35. Limiting block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Figure 1-3 As shown, this utility model provides a diaphragm clamping device for lithium battery production, including a base plate 1, an adjusting frame 2 on the upper side of the base plate 1, side pressure blocks 3 symmetrically arranged on the upper surface of the base plate 1, a bidirectional lead screw 21 rotatably arranged inside the adjusting frame 2, a motor 22 fixedly arranged on one side of the adjusting frame 2, and the output end of the motor 22 passing through the adjusting frame 2 and fixedly connected to the bidirectional lead screw 21, a moving block 23 symmetrically threaded on the outer surface of the bidirectional lead screw 21, a clamping plate 24 fixedly arranged on the lower surface of the moving block 23, an anti-slip plate 27 fixedly arranged on the inner side of the clamping plate 24, a sliding groove 25 opened on the upper surface of the adjusting frame 2, a slider 26 fixedly arranged on the upper surface of the moving block 23, and the slider 26 being engaged in the sliding groove 25, and a positioning post 29 fixedly arranged inside the adjusting frame 2, and the positioning post 29 being engaged in the sliding groove 25. 9. A support plate 28 is symmetrically fixed on the upper surface of the base plate 1 through the moving block 23, and the upper end of the support plate 28 is fixedly connected to the adjustment frame 2. The lower surface of the clamping plate 24 is movably attached to the base plate 1. After the motor 22 starts, it drives the bidirectional lead screw 21 in the adjustment frame 2 to rotate. The moving block 23, which is symmetrically threaded on the surface of the bidirectional lead screw 21, moves towards each other (closer) or away from each other (away) along the lead screw because the thread directions are opposite. The clamping plate 24 on the lower surface of the moving block 23 moves synchronously with the moving block 23. The anti-slip plate 27 on the inner side realizes the lateral clamping or loosening of the diaphragm. During the process, the slider 26 on the moving block 23 slides in the slide groove 25 of the adjustment frame 2. With the positioning post 29 through the moving block 23, the stability and straightness of the movement of the clamping plate 24 are ensured.

[0017] Side plates 31 are symmetrically fixed on both sides of the base plate 1. A vertical plate 32 is fixed on the upper surface of the side plate 31, and an electric push rod 33 is fixed on the inner side of the vertical plate 32. The output end of the electric push rod 33 is fixedly connected to the side pressure block 3. Limiting grooves 34 are symmetrically opened on both sides of the base plate 1. A limiting block 35 is fixed on the lower surface of the side pressure block 3, and the limiting block 35 is locked in the corresponding limiting groove 34. When the electric push rod 33 fixed on the vertical plate 32 on both sides of the base plate 1 is activated, the output end pushes the side pressure block 3 to move along the surface of the base plate 1. The limiting block 35 on the lower surface of the side pressure block 3 slides in the limiting groove 34 of the base plate 1 to ensure that the movement direction of the side pressure block 3 is stable. When the two side pressure blocks 3 move towards each other, they achieve lateral clamping of the diaphragm; when they move away from each other, they are released.

[0018] Working principle: This diaphragm clamping device for lithium battery production achieves stable clamping of the diaphragm in multiple directions through a combination of bidirectional lead screw 21 transmission and electric push rod 33 drive. The specific working process is as follows: After the motor 22 starts, it drives the bidirectional lead screw 21 in the adjustment frame 2 to rotate. The moving blocks 23, which are symmetrically connected by threads on the surface of the bidirectional lead screw 21, move towards each other (closer) or away from each other (away) along the lead screw because the threads are opposite in direction. The clamping plate 24 on the lower surface of the moving block 23 moves synchronously with the moving block 23. The anti-slip plate 27 on the inner side achieves the lateral clamping or loosening of the diaphragm. During the process, the slider 26 on the moving block 23 slides in the slide groove 25 of the adjustment frame 2. With the help of the positioning post 29 that passes through the moving block 23, the stability and straightness of the movement of the clamping plate 24 are ensured. The electric push rods 33 fixed on the vertical plates 32 on both sides of the base plate 1 are activated, and the output end pushes the side pressure block 3 to move along the surface of the base plate 1. The limiting block 35 on the lower surface of the side pressure block 3 slides in the limiting groove 34 of the base plate 1 to ensure that the movement direction of the side pressure block 3 is stable. When the two side pressure blocks 3 move towards each other, they achieve lateral clamping of the diaphragm; when they move away from each other, they are released. The transverse clamping plate 24 cooperates with the lateral pressure block 3 to apply pressure to the diaphragm from multiple directions to achieve stable fixation. At the same time, the side plates 31 on both sides of the base plate 1 support the vertical plate 32. The support plate 28 connects the base plate 1 and the adjustment frame 2 to ensure the stability of the overall structure during the clamping process.

[0019] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A diaphragm clamping device for lithium battery production, comprising a base plate (1), characterized in that: An adjustment frame (2) is provided on the upper side of the base plate (1). Side pressure blocks (3) are symmetrically provided on the upper surface of the base plate (1). A two-way lead screw (21) is rotatably provided inside the adjustment frame (2). A motor (22) is fixedly provided on one side of the adjustment frame (2). The output end of the motor (22) passes through the adjustment frame (2) and is fixedly connected to the two-way lead screw (21). A moving block (23) is symmetrically threaded on the outer surface of the two-way lead screw (21). A clamping plate (24) is fixedly provided on the lower surface of the moving block (23).

2. The diaphragm clamping device for lithium battery production as described in claim 1, characterized in that: The base plate (1) is symmetrically fixed with side plates (31) on both sides. The upper surface of the side plate (31) is fixed with a vertical plate (32), and the inner side of the vertical plate (32) is fixed with an electric push rod (33). The output end of the electric push rod (33) is fixedly connected to the side pressure block (3).

3. The diaphragm clamping device for lithium battery production as described in claim 1, characterized in that: The inner side of the clamp (24) is fixed with an anti-slip plate (27).

4. The diaphragm clamping device for lithium battery production as described in claim 1, characterized in that: The upper surface of the adjustment frame (2) is provided with a sliding groove (25), and the upper surface of the moving block (23) is fixedly provided with a slider (26), and the slider (26) is locked in the sliding groove (25).

5. The diaphragm clamping device for lithium battery production as described in claim 1, characterized in that: The adjustment frame (2) is fixedly provided with a positioning column (29), and the positioning column (29) passes through the moving block (23).

6. The diaphragm clamping device for lithium battery production as described in claim 1, characterized in that: The upper surface of the base plate (1) is symmetrically fixed with support plates (28), and the upper end of the support plates (28) is fixedly connected to the adjustment frame (2).

7. The diaphragm clamping device for lithium battery production as described in claim 1, characterized in that: The lower surface of the clamp (24) is in movable contact with the base plate (1).

8. The diaphragm clamping device for lithium battery production as described in claim 2, characterized in that: The base plate (1) has symmetrically provided limiting grooves (34) on both sides, and the lower surface of the side pressure block (3) is fixedly provided with a limiting block (35), and the limiting block (35) is stuck in the corresponding limiting groove (34).

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