Detachable variable-technological-parameter shearing die

Abstract

The invention provides a detachable variable-technological-parameter shearing die which comprises an upper die and a lower die. The upper die is provided with an upper cover plate, an upper die base,an upper clamping plate and a stripper plate in sequence from top to bottom, the upper cover plate and the upper die base are installed together through an upper cushion block, the lower surface of the upper cover plate is provided with a plurality of springs, the springs sequentially penetrate through the upper die base and the upper clamping plate to abut against the upper surface of the stripper plate, the lower surface of the upper die base is provided with a replaceable punch knife block which penetrates through a first groove in the middle of the upper clamping plate, and the upper clamping plate and the stripper plate are movably connected through a first isoheight sleeve. The lower die is provided with a lower die plate, a lower die base and a lower cushion block in sequence from top to bottom, the lower die plate is provided with a lower die plate groove, a replaceable lower die knife edge inlet is placed in the lower die plate groove, and the lower die plate groove is locatedin the advancing direction of the punch knife block. The detachable variable-technological-parameter shearing die is simple in overall structure, small in assembling size, low in manufacturing cost and wide in shear sample application range.

Description

technical field [0001] The invention relates to the field of mechanical processing, specifically, to a shearing die that can be easily disassembled and can flexibly change process parameters, and the involved process parameters generally refer to punching angle and punching gap. Background technique [0002] Environmental protection and fuel economy are the main directions for the development of the automobile industry at present, and lightweight body is one of the effective ways to achieve the above goals. At the same time, with the continuous improvement of the passive safety performance requirements of automobiles, new materials and The exploration of new technology is also constantly developing. [0003] The thermoforming process is one of the new processes that have developed rapidly in recent years. After boron steel is heated to a high temperature to undergo austenite transformation, its strength will decrease while its ductility will be greatly improved, making it h...

AI Technical Summary

Problems solved by technology

[0004] After searching the existing patents and literature, it is found that there is no shearing die suitable for martensitic boron steel that can be flexibly adjusted for the punching angle and blanking gap

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