Lithium battery insulation cover plate punching tool

Abstract

The utility model discloses a punching tool for an insulation cover plate of a lithium battery, which relates to the technical field of lithium battery production and comprises a lower template, a base plate, a pressing plate and an upper template, a lower waist-shaped punching knife is arranged on the lower template according to the shape of a product, a product limiting groove is arranged on the edge of the lower template, the base plate is arranged in a die cavity of the lower template, and the pressing plate is arranged on the base plate. A PC insulation cover plate is placed on the base plate, a pressing plate is arranged above the PC insulation cover plate, an upper die plate is arranged above the pressing plate, an upper kidney-shaped stamping knife corresponding to the lower die plate is arranged on the upper die plate, and rebound foam is arranged in the upper kidney-shaped stamping knife. The punching die is reasonable in structural design, waste materials are rapidly separated and discharged, the phenomenon of knife sticking is avoided, and the punching efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to a punching tool for a lithium battery insulating cover plate. Background Technology

[0002] Lithium battery modules are assembled by welding individual battery cells in series and parallel. For safety, the welded battery modules require insulating covers to protect the exposed wiring harness and critical components. These covers are typically made of PC material using a vacuum forming process, with a thickness of only 0.5mm. The material itself is reliable, resistant to insulation and corrosion, and can withstand various complex environments, making it a preferred protective material in the new energy lithium battery field. However, in the early development stages, due to the highly variable nature of the product, directly developing a dedicated punching die can easily lead to stagnation and waste. Therefore, this invention designs a simplified punching tool for insulating covers developed in the early stages to reduce costs and increase efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a punching fixture for lithium battery insulating cover plates. The fixture has a reasonable structural design, enabling rapid detachment and discharge of waste materials, avoiding sticking to the blade, and improving punching efficiency and quality.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a punching fixture for a lithium battery insulating cover plate, comprising a lower template, a pad, a pressure plate, and an upper template. The lower template is provided with a waist-shaped punch according to the product shape, and the edge of the lower template is provided with a product limiting groove. A pad is placed inside the mold cavity of the lower template, and a PC insulating cover plate is placed on the pad. The pressure plate is above the PC insulating cover plate, and the upper template is above the pressure plate. The upper template is provided with an upper waist-shaped punch corresponding to the lower template, and the upper waist-shaped punch is provided with spring foam.

[0005] Preferably, the lower waist-shaped punch is embedded in the lower template.

[0006] Preferably, the pressure plate is a silicone pressure plate.

[0007] Preferably, the upper template is a movable plate.

[0008] Preferably, the lower-waisted punch has a blade cavity 51 in the middle to facilitate waste discharge.

[0009] The beneficial effects of this utility model are as follows: the lower waist-shaped punch and product limiting groove on the lower template ensure punching accuracy and prevent product shaking; the pad provides stable support, and the silicone pressure plate protects the product surface from damage; the upper template is a movable plate, equipped with an upper waist-shaped punch and rebound foam, which enables waste to be quickly removed and discharged, avoids sticking to the blade, and improves punching efficiency and quality. Attached Figure Description

[0010] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0011] Figure 1 This is an exploded view of the present invention;

[0012] Figure 2 This is an exploded view of the present invention from another perspective. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] Reference Figure 1-2 The specific embodiment adopts the following technical solution: a punching fixture for lithium battery insulating cover plate, including a lower template 1, a pad 2, a pressure plate 3 and an upper template 4. The lower template 1 is provided with a waist-shaped punch 5 according to the product shape. The edge of the lower template 1 is provided with a product limiting groove 6. The pad 2 is placed in the mold cavity of the lower template 1. The PC insulating cover plate 7 is placed on the pad 2. The pressure plate 3 is above the PC insulating cover plate 7. The upper template 4 is above the pressure plate 3. The upper template 4 is provided with an upper waist-shaped punch 8 corresponding to the lower template 1. The upper waist-shaped punch 8 is provided with a spring foam 9.

[0015] It is worth noting that the lower waist-shaped punch 5 is embedded in the lower template 1.

[0016] It is worth noting that the pressure plate 3 is a silicone pressure plate.

[0017] It is worth noting that the upper template 4 is a movable plate.

[0018] In addition, the lower waist-shaped punch 5 is provided with a blade cavity 51 in the middle to facilitate the discharge of waste material.

[0019] In this specific embodiment, the lower template is equipped with a waist-shaped punch according to the product shape. The waist-shaped punch is embedded in the lower template 1, and the edge of the lower template 1 is provided with a product limiting groove to prevent it from shaking and causing dimensional deviations during punching. The pad 2 is placed in the cavity of the lower template to support the product. The pressure plate 3 is made of silicone material, mainly to prevent damage to the product surface during the upper die punching process. The upper template 4 is a movable plate, and its interior is equipped with a waist-shaped punch corresponding to the lower template 4. The punch is equipped with a rebound foam 9, the main function of which is to quickly detach the waste product after punching and discharge it from the bottom to prevent the waste product from sticking to the punch.

[0020] The structural design of this specific implementation method is reasonable, which greatly improves the punching efficiency and quality, enables the rapid separation and discharge of waste materials, and avoids the phenomenon of sticking to the blade.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A punching tool for a lithium battery insulation cover plate, characterized in that, The utility model relates to a lower mould plate (1), a backing plate (2), a pressing plate (3) and an upper mould plate (4), the lower mould plate (1) is provided with lower waist type punch (5) according to product shape on the lower mould plate (1), the edge of lower mould plate (1) is provided with product limiting groove (6), the backing plate (2) is placed in the mould cavity of lower mould plate (1), the backing plate (2) is placed with PC insulation cover plate (7), the upper side of PC insulation cover plate (7) is the pressing plate (3), the upper side of pressing plate (3) is the upper mould plate (4), the upper mould plate (4) is provided with upper waist type punch (8) corresponding with lower mould plate (1), and upper waist type punch (8) is provided with rebound foam (9) in.

2. The punching tool for the insulating cover plate of a lithium battery according to claim 1, characterized in that, The lower waist type punch (5) is embedded on the lower mould plate (1).

3. The punching tool for the insulating cover plate of the lithium battery according to claim 1, characterized in that, The pressing plate (3) is a silica gel pressing plate.

4. The punching tool for the insulating cover plate of the lithium battery according to claim 1, characterized in that, The upper mould plate (4) is a movable plate.

5. The punching tool for the insulating cover plate of a lithium battery of claim 1, wherein, The lower waist type punch (5) is provided with a knife cavity (51) in the middle for facilitating waste discharge.

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