Lithium battery insulation panel punching mechanism

Abstract

The utility model discloses a lithium battery insulation panel punching mechanism which comprises a bottom plate, an air cylinder fixing base, a side cutting air cylinder, a PC product fixing base, a side cutting punching knife, a material pressing plate, a vertical cutting punching knife, a vertical cutting punching knife fixing plate, a movable plate, a guide column, a guide sleeve and a buffer spring. A cylinder rod of the side cutting cylinder is connected with the side cutting stamping knife, a PC product fixing seat is arranged in the center of the bottom plate, a PC plastic uptake product is fixed on the PC product fixing seat, the bottom plate is connected with a movable plate through a guide column and a guide sleeve, and a vertical cutting stamping knife fixing plate is fixed at the bottom of the movable plate and connected with a material pressing plate through a buffer spring. By improving the structure and the technology, the punching efficiency and the product yield can be remarkably improved, and the requirement for large-scale automatic production of lithium batteries is met.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery processing equipment, specifically to a lithium battery insulating panel punching mechanism. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage technologies, the application of lithium-ion batteries is becoming increasingly widespread, placing higher demands on their safety and reliability. Lithium batteries typically contain metal components such as positive and negative electrodes, tabs, and connecting pieces. To prevent short circuits between these metal components or between these components and the cell casing, materials with excellent insulating properties must be used for effective isolation. Among many insulating materials, PC (polycarbonate) has become one of the commonly used key materials in power batteries and high-energy-density batteries due to its excellent comprehensive performance. Specifically, PC materials have the following advantages:

[0003] 1. High insulation: It can effectively block direct contact between electrons and prevent internal short circuits;

[0004] 2. High mechanical strength: Its impact resistance is dozens of times that of ordinary glass, which can protect the integrity of the battery cell structure when subjected to external impact, compression or vibration;

[0005] 3. Lighter weight: This helps reduce the overall weight of the power battery.

[0006] Currently, common PC insulating panels are typically formed using vacuum forming, with a material thickness of only about 0.5mm. Due to the thinness of the material, the formed PC insulating panels are prone to tearing or damage during subsequent punching processes, leading to decreased yield and increased production costs. Especially on automated, high-efficiency production lines, maintaining the integrity of the PC insulating panel while rapidly punching has become a critical issue affecting battery production quality and efficiency. However, in existing technology, dedicated equipment for punching PC insulating panels is still inadequate, and common problems include:

[0007] 1. Inaccurate positioning: Because PC insulating panels are thin and have a certain degree of toughness, they are prone to deviation during punching if there is no special positioning and clamping mechanism, making it difficult to guarantee dimensional accuracy and appearance quality.

[0008] 2. Prone to tearing: If the punching tool lacks buffering, clamping and proper cutting angle control of the material, it is very easy to cause the panel to tear or burr at the cutting edge;

[0009] 3. Low efficiency: Traditional semi-automatic or manual punching methods require a large amount of manpower, which is difficult to meet the needs of mass production of power batteries, and the level of automation needs to be improved. Therefore, to improve the efficiency and yield of the lithium battery insulation panel punching process, a mechanism capable of accurately positioning, reliably clamping, and rapidly punching the PC panel needs to be designed to meet the requirements of lithium battery manufacturers for high quality, high efficiency, and low cost. Based on the analysis of the characteristics of PC insulation panels and the actual pain points in the punching process after vacuum forming, this utility model provides a lithium battery insulation panel punching mechanism that achieves fast, stable, and high-precision punching operations while ensuring the integrity of the panel. Utility Model Content

[0010] To address the problems of easy tearing, inaccurate positioning, and insufficient efficiency of existing PC insulating panels in the punching process after vacuum forming, the purpose of this utility model is to provide a punching mechanism for lithium battery insulating panels. Through improvements in structure and process, the punching efficiency and product yield can be significantly improved, meeting the needs of mass automated production of lithium batteries.

[0011] To achieve the above objectives, this utility model is implemented through the following technical solution: a lithium battery insulation panel punching mechanism, comprising a base plate, a cylinder fixing seat, a side-cutting cylinder, a PC product fixing seat, a side-cutting punch, a pressure plate, a vertical-cutting punch, a vertical-cutting punch fixing plate, a movable plate, guide posts, guide sleeves, and buffer springs. The side-cutting cylinder is fixed to the center of the four sides of the base plate through the cylinder fixing seat. The cylinder rod of the side-cutting cylinder is connected to the side-cutting punch. The PC product fixing seat is provided at the center of the base plate. A PC blister product is fixed on the PC product fixing seat. The base plate is connected to the movable plate through guide posts and guide sleeves. A vertical-cutting punch fixing plate is fixed to the bottom of the movable plate. The vertical-cutting punch fixing plate is connected to the pressure plate through buffer springs.

[0012] Preferably, the side-cutting punches are positioned facing the four sides of the PC thermoforming product.

[0013] The beneficial effects of this utility model are as follows: The structure of this utility model is rationally designed. Through high-precision synchronous punching, material pressing and fixing, and buffer protection, it achieves efficient and high-quality punching of PC thermoforming products. Its compact structure and strong automation compatibility make it suitable for large-scale production of lithium battery insulating panels, offering advantages such as high precision, high efficiency, and strong stability. Attached Figure Description

[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2This is a schematic diagram of another orientation of the present invention; Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 The specific embodiment adopts the following technical solution: a lithium battery insulation panel punching mechanism, including a base plate 1, a cylinder fixing seat 2, a side cutting cylinder 3, a PC product fixing seat 4, a side cutting punch 5, a pressure plate 6, a vertical cutting punch 7, a vertical cutting punch fixing plate 8, a movable plate 9, a guide post 10, a guide sleeve 11 and a buffer spring 12. The side cutting cylinder 3 is fixed to the center of the four sides of the base plate 1 through the cylinder fixing seat 2. The cylinder rod of the side cutting cylinder 3 is connected to the side cutting punch 5. The PC product fixing seat 4 is set at the center of the base plate 1. A PC blister product 13 is fixed on the PC product fixing seat 4. The base plate 1 is connected to the movable plate 9 through the guide post 10 and the guide sleeve 11. The vertical cutting punch fixing plate 8 is fixed at the bottom of the movable plate 9. The vertical cutting punch fixing plate 8 is connected to the pressure plate 6 through the buffer spring 12.

[0019] The specific implementation method is as follows: Place the PC blister product on the product fixing seat, move the movable plate down, and after the pressing material completely presses down on the product, the side cutting punch first cuts off the excess four sides under the push of the side cylinder, while the vertical cutting punch continues to press down under the push of the vertical cutting cylinder to complete the final cutting.

[0020] This specific embodiment, through the cooperation of the side-cutting punch 5 and the vertical-cutting punch 7, enables high-precision punching of PC thermoformed products, ensuring consistent product dimensions. Four side-cutting cylinders 3 simultaneously drive the side-cutting punch 5, achieving synchronous punching on all four sides, improving punching efficiency and avoiding product deformation or dimensional errors caused by asynchronous punching. The pressure plate 6 firmly fixes the PC thermoformed product 13 before punching, preventing displacement during the punching process and ensuring punching accuracy and stability. The buffer spring 12 acts as a buffer during vertical cutting, preventing excessive punching force from damaging the product and improving punching safety and reliability. The mechanism has a compact design; the cooperation of the guide post 10 and guide sleeve 11 ensures smooth movement of the movable plate 9, resulting in a stable overall structure suitable for high-precision punching requirements. Through the combination of the side-cutting punch 5 and the vertical-cutting punch 7, this mechanism can simultaneously complete four-sided punching and final forming punching, reducing process steps and improving production efficiency.

[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 lithium battery insulation panel punching mechanism, characterized in that, It includes bottom plate (1), cylinder fixed base (2), side cutting cylinder (3), PC product fixed base (4), side cutting punch (5), pressing plate (6), vertical cutting punch (7), vertical cutting punch fixed plate (8), movable plate (9), guide column (10), guide sleeve (11) and buffer spring (12), the middle of the four edges of bottom plate (1) is fixed with side cutting cylinder (3) through cylinder fixed base (2), the cylinder rod of side cutting cylinder (3) is connected with side cutting punch (5), the center of bottom plate (1) is provided with PC product fixed base (4), PC product fixed base (4) is fixed with PC suction plastic product (13), bottom plate (1) is connected with movable plate (9) through guide column (10) and guide sleeve (11), movable plate (9) is fixed with vertical cutting punch fixed plate (8) at the bottom, vertical cutting punch fixed plate (8) is connected with pressing plate (6) through buffer spring (12).

2. The lithium battery insulation panel punching mechanism according to claim 1, wherein, The side cutting punch (5) is arranged to the four edges of PC suction plastic product.

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