Wearing characteristics detection die of tool material for steel plate material punching

Abstract

The invention relates to a wearing characteristics detection die of tool materials for steel plate material punching, which belongs to the technical field of plastic forming of metals. The die comprises an upper die holder, a spring assembly, a guide pillar and guide bush assembly, a convex die base plate, a convex die fixed plate, a convex die assembly, a concave die assembly, a concave die fixed plate, a concave die base plate and a lower die holder, wherein the upper die holder, the guide pillar and guide bush assembly and the lower die holder are sequentially and movably connected, the upper die holder is arranged just opposite to the lower die holder, the spring assembly, the convex die base plate and the convex die fixed plate as well as the concave die fixed plate and the concave die base plate are sequentially and fixedly arranged in the upper die holder and the lower die holder from top to bottom, the convex die assembly is fixedly connected with the convex die fixed plate, the concave die assembly is fixedly connected with the concave die fixed plate, and a discharging plate is fixedly arranged in the upper die holder and contacts with the spring assembly. In the invention, compared with the wearing characteristics of different cutting edges, the wearing characteristics data which are 6-8 times of that of the prior art are obtained for one mold steel material, and a mold material selection scheme with the lowest cost can be obtained when the stamping parts with different amounts are produced.

Description

technical field [0001] The invention relates to a device in the technical field of metal plastic processing, in particular to a wear characteristic detection mold of a tool material for punching a steel sheet. Background technique [0002] Compared with ordinary steel plates, high-strength steel plates have high yield strength and high fracture strength, so that the stamping parts made of this kind of steel plates have better impact energy absorption characteristics, which can further reduce the weight of automobile structural design and improve the car's performance. fuel economy. Because the yield strength and fracture strength of this type of steel plate are much higher than that of ordinary steel plate, the stamping die of this type of steel plate is subjected to more severe stress, severe die wear, and the wear characteristics of the die are also different from those of ordinary steel plate. Therefore, the evaluation of wear characteristics of different cold work die s...

AI Technical Summary

Problems solved by technology

The company's test uses the same mold structure design, but the integral punch and the integral die use different die steel materials. If there are 5 kinds of die steel materials for comparison, the number of tests under each punch and die condition is 150,000-200,000 times, a total of 750,000 to 1,000,000 punching tests have to be completed, the test cycle is long, and material waste is serious

Moreover, there is no simultaneous investigation of the wear characteristics of the different clearances of the straight cutting edge, the different clearances of the arc cutting edge, the cutting edge with convex mold characteristics and the cutting edge with concave mold characteristics on the same mold insert under different working conditions.

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