A compound mold for stretch forming and flanging forming

Abstract

The invention relates to flanging compound dies, in particular to a bag pulling forming and flanging forming compound die. The bag pulling forming and flanging forming compound die comprises an upper die seat and a lower die seat, the bottom of the upper die seat is sequentially provided with an upper base plate and an upper forming convex die. The middle of the upper forming convex die is provided with an upper thinning material ejection block and a material ejection pin respectively, the bottom of the upper thinning material ejection block is provided with an upper nitrogen spring, and the bottom of the material ejection pin is provided with a material ejection spring. The upper nitrogen spring and the material ejection spring both penetrate through the upper base plate and the upper die seat to abut against or be fixedly connected with a nitrogen spring fixing block fixed on the top of the upper die seat. The lower die seat is provided with a lower die plate, and a bag pulling convex die with an inner positioning pin is arranged in the middle of the lower die plate. The bottom of the bag pulling convex die is provided with a lower nitrogen spring, and the lower nitrogen spring penetrates through the lower die seat and is fixed on a lower supporting plate. A lower floating plate is arranged outside of the bag pulling convex die, a thinning flanging convex die is arranged in the middle of the lower floating plate, a flanging concave die is arranged on the periphery of the lower floating plate, and the lower floating plate is in slide fit with the flanging concave die. The bag pulling forming and flanging forming compound die overcomes the defects that in the original production process, the product quality is not stable, and the production efficiency is low.

Description

technical field [0001] The invention relates to a flanging forming composite mold, in particular to a stretching and flanging forming composite mold used for thinning and flanging precision auto parts. Background technique [0002] With the rapid development of large-scale high-precision multi-station progressive dies for automobiles and the expansion of the tonnage of presses, the production of complex and small and medium-sized products by large-scale precision multi-station progressive dies has become the mainstream of the industry. It will continue to develop in the direction of informatization, digitalization, refinement, high speed and automation, and the comprehensive strength and core competitiveness of the industry will be significantly improved. However, not all products can obtain stable product quality and good product rate in the multi-station progressive die. On the contrary, due to the defects of the mold technology, the repair cost of some products is extreme...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a composite mold for stretch forming and flanging forming, which is used for the thinning and flanging of the automobile instrument panel bracket, which overcomes the unstable product quality and low production efficiency of the original production process Defects

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