PC insulating cover blanking mechanism

Abstract

The utility model discloses a PC insulating cover blanking mechanism which comprises a lower fixing plate, a die core supporting block, a lower die core, a PC plastic uptake product insulating cover, a die core material pressing plate, a vertical cutting punch fixing block, a vertical cutting punch, a side cutting punch, a movable plate and a beveling device. The lower fixing plate is provided with the lower die core through the die core supporting block, and the PC plastic uptake product insulating cover is placed on the lower die core; the die core pressing plate is arranged above the PC blister product insulating cover and is connected with the vertical cutting punch, the vertical cutting punch is fixed on the movable plate through the vertical cutting punch fixing block, the movable plate is connected with the external air cylinder, the side cutting air cylinder is arranged on the left side of the lower fixing plate and is connected with the side cutting punch, and the inclined cutting device is arranged on the front side of the lower fixing plate. Through the optimized design of the punching sequence, the shearing angle, the material pressing mode and the side cutting device, the production efficiency is improved, the material loss is reduced, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the lithium battery assembly manufacturing and its insulation structural member processing field, concretely relates to a PC insulating cover blanking mechanism. BACKGROUND

[0002] With the wide application of lithium batteries in new energy vehicles, energy storage systems and consumer electronics, the internal structure of the lithium battery is increasingly demanding in terms of safety and reliability. PC (polycarbonate) insulating cover is applied in multiple key parts of the lithium battery due to its excellent insulation performance, high temperature resistance, mechanical strength and impact resistance, for example:

[0003] 1. Battery shell end cover or edge part: isolates the metal shell from the internal electrode to prevent external short circuit of the battery;

[0004] 2. Terminals, connecting sheets or busbars around the positive and negative electrodes of the battery: wrap around the electrode connection points to avoid contact between metal parts and other conductive bodies;

[0005] 3. Isolation sheet or bracket between the battery cells: prevents direct contact between the battery cells and resists extrusion or vibration.

[0006] Due to the complex structure and irregular shape of the PC insulating cover, and the thickness of only about 0.5mm, when using traditional punch directly, it is easy to tear or deform due to excessive shear force or uneven stress, resulting in large batch of scrap and high production cost.

[0007] In view of the above, it is necessary to design a cutting mechanism for the characteristics of PC insulating cover, which can effectively reduce the damage risk of thin-walled PC material while meeting the high-precision cutting edge requirement. INVENTION CONTENTS

[0008] In view of the problems of PC insulating cover in the prior art, such as easy tearing, easy scrap and difficult to guarantee precision, the utility model aims to provide a PC insulating cover blanking mechanism, which optimizes the design of cutting sequence, shearing angle, pressing method and side cutting device, so as to improve production efficiency, reduce material loss and reduce cost.

[0009] In order to achieve the above object, the utility model is through the following technical scheme to realize: a PC insulating cover blanking mechanism, including lower fixed plate, mould core support block, lower mould core, PC blister product insulating cover, mould core pressure plate, vertical cutting punch fixed block, vertical cutting punch, side cutting punch, movable plate and bevel cutting device, lower fixed plate is provided with lower mould core through mould core support block, PC blister product insulating cover is placed on lower mould core, and the upper side of PC blister product insulating cover is mould core pressure plate, and mould core pressure plate is connected with vertical cutting punch, and vertical cutting punch is fixed on movable plate through vertical cutting punch fixed block, and movable plate is connected with external cylinder, and side cutting cylinder is arranged on the left side of lower fixed plate, and side cutting cylinder is connected with side cutting punch, and bevel cutting device is arranged on the front side of lower fixed plate.

[0010] As preferred, the bevel cutting device comprises a bevel cutting fixed seat, a punch connecting movable block and a bevel cutting punch, the punch connecting movable block is arranged obliquely on the bevel cutting fixed seat, the punch connecting movable block cooperates with a push block, and the push block is arranged on the movable plate.

[0011] The utility model has the advantages of:

[0012] The utility model aims at the thin and easy-to-tear characteristics of PC insulating cover, optimizes the design of punch, side cutting device and pressure plate mode, can effectively improve the punching precision, reduces the material tearing and scrap rate, has remarkable practical value and popularization prospect. Through one-time or multi-time step-by-step punching, side cutting and pressure plate pre-tightening, the stable and efficient processing of complex special-shaped PC insulating cover is realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be described in detail below in combination with the drawings and specific embodiments;

[0014] Fig. 1 It is the structural schematic diagram of the utility model;

[0015] Fig. 2 It is the exploded schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model will be further described below in combination with specific embodiments.

[0017] REFERENCE Figs. 1-2The embodiment adopts the following technical scheme: a PC insulating cover blanking mechanism, comprising a lower fixed plate 1, a mold core support block 2, a lower mold core 3, a PC blister product insulating cover 4, a mold core pressing plate 5, a vertical cutting punch fixed block 6, a vertical cutting punch 7, a side cutting punch 8, a movable plate 9 and an inclined cutting device, the lower fixed plate 1 is provided with the lower mold core 3 through the mold core support block 2, the PC blister product insulating cover 4 is placed on the lower mold core 3, the mold core pressing plate 5 is above the PC blister product insulating cover 4, the mold core pressing plate 5 is connected with the vertical cutting punch 7, the vertical cutting punch 7 is fixed on the movable plate 9 through the vertical cutting punch fixed block 6, the movable plate 9 is connected with an external cylinder, a side cutting cylinder 10 is arranged on the left side of the lower fixed plate 1, the side cutting cylinder 10 is connected with the side cutting punch 8, and the inclined cutting device is arranged on the front side of the lower fixed plate 1.

[0018] It is worth noting that the inclined cutting device comprises an inclined cutting fixed seat 11, a punch connecting movable block 12 and an inclined cutting punch 13, the punch connecting movable block 12 is arranged on the inclined cutting fixed seat 11, the punch connecting movable block 12 is matched with a push block 14, and the push block 14 is arranged on the movable plate 9.

[0019] The working principle of the embodiment is as follows: first, the product to be punched is placed on the lower mold core, the movable plate drives the vertical cutting punch and the pressing plate to move downward under the pushing of the external cylinder, when the pressing plate completely presses the surface of the product to be cut, the side cutting cylinder drives the side cutting punch to complete the punching of the side surface of the product and return to the original position, then the movable plate drives the vertical cutting punch to continue to move downward, the vertical cutting of the product is completed, at the same time, the push block pushes the inclined cutting punch, and the punching of the product is completed, and finally the punch returns to the original position.

[0020] All the punches of the embodiment are made of SKD11 material, and the punch is provided with a blanking knife edge design. The specific punching steps are as follows: 1, the pressing plate is provided with a spring inside, after the pressing plate is pressed downward, the product is pressed and prevented from shaking by the internal spring; 2, the side cutting punch first completes the punching; 3, the vertical cutting punch continues to move downward to complete the vertical edge punching under the action of external force; at the same time of the vertical cutting, the push block pushes the connecting movable block to drive the punch to move forward, and the inclined cutting of the product is completed.

[0021] The embodiment can effectively improve the punching precision, reduce the material tearing and scrap rate, and realize stable and efficient processing of complex special-shaped PC insulating covers through one or more step-by-step punching, side cutting and pressing pre-tightening and other comprehensive measures.

[0022] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A PC insulation cover punching mechanism, characterized in that, The device includes a lower fixed plate (1), a mold core support block (2), a lower mold core (3), a PC vacuum forming product insulation cover (4), a mold core pressure plate (5), a vertical cutting punch fixing block (6), a vertical cutting punch (7), a side cutting punch (8), a movable plate (9), and a slanting cutting device. The lower fixed plate (1) is provided with a lower mold core (3) through the mold core support block (2). The PC vacuum forming product insulation cover (4) is placed on the lower mold core (3). The mold core pressure plate (5) is above the PC vacuum forming product insulation cover (4). The mold core pressure plate (5) is connected to the vertical cutting punch (7). The vertical cutting punch (7) is fixed on the movable plate (9) through the vertical cutting punch fixing block (6). The movable plate (9) is connected to an external cylinder. The side cutting cylinder (10) is located on the left side of the lower fixed plate (1). The side cutting cylinder (10) is connected to the side cutting punch (8). The slanting cutting device is located on the front side of the lower fixed plate (1).

2. The PC insulation cover punching mechanism according to claim 1, characterized in that, The oblique cutting device includes an oblique cutting fixed seat (11), a punch connecting movable block (12), and an oblique cutting punch (13). The oblique cutting fixed seat (11) is obliquely provided with the punch connecting movable block (12). The punch connecting movable block (12) cooperates with the push block (14). The push block (14) is set on the movable plate (9).

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