Composite stamping die

Abstract

The invention discloses a composite stamping die which comprises an upper die base, a lower die base, a die handle and a convex punching die. The die handle is arranged in the middle of the upper die base, the convex punching die is arranged in the middle of the lower die base, the die handle is fixedly connected with the convex punching die, an installing plate is arranged under the upper die base, a pull rod is arranged in the installing plate, springs are arranged at two ends of the pull rod, a convex forming die, a spring and a movable tapered wedge are sequentially arranged on the outer side of the convex punching die, the convex forming die is connected with the movable tapered wedge through the spring, the movable tapered wedge is provided with a fixed tapered wedge and is matched with the fixed tapered wedge, a guide column and a guide sleeve are arranged at two ends of the lower die base, and the lower die base is connected with the upper die base through the guide column and the guide sleeve. The composite stamping die can achieve continuous implementation of blanking, forming and punching, production efficiency is high, and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of die equipment, in particular to a composite stamping die. Background technique [0002] Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts. [0003] Today's high-strength steel and ultra-high-strength steel have realized the lightweight of vehicles and improved the collision strength and safety performance of vehicles, so they have become an important development direction of automotive steel. However, with the improvement of the strength of the sheet metal, the traditional cold stamping process is prone to cracking during the forming ...

AI Technical Summary

Problems solved by technology

According to the old process, the stamping process of U-shaped parts with holes generally uses three sets of molds for blanking, forming and punching. This process has low production efficiency, many process equipment, and poor economic benefits.

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