Metal plate stamping arc-shaped die

Abstract

The invention belongs to the technical field of stamping dies, and particularly relates to a metal plate stamping arc-shaped die. The metal plate stamping arc-shaped die comprises an upper top plate, a lower bottom plate, an upper die and a lower die. The upper die is fixedly connected with the upper top plate through a first air cylinder; the first air cylinder is used for pushing the upper die to work; the lower die is fixedly connected with the lower bottom plate through a die holder; the metal plate stamping arc-shaped die further comprises an ejection unit and a controller; and the ejection unit comprises a second air cylinder, an arc-shaped push plate and a set of elastic push rods. According to the metal plate stamping arc-shaped die, on one hand, the controller controls the first air cylinder to push the upper die to move downwards, then the second air cylinder does contraction motion, air in a cavity formed between the upper die and the lower die is sucked into the first cavity through ejection holes, negative pressure is formed, and a plate is tightly attached to the upper surface of the lower die, so that the plate is prevented from moving in the punch forming process; and on the other hand, the controller controls the first air cylinder to pull the upper die to move upwards, then the second air cylinder conducts stretching-out motion, the elastic push rods are pushed out of the ejection holes, and a gap is formed between the formed plate and the lower die, so that stripping is convenient.

Description

technical field [0001] The invention belongs to the technical field of stamping dies, in particular to a sheet metal stamping arc 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. Since the reform and opening up, with the rapid development of the national economy, the market demand for molds has continued to grow. The mold industry has been developing rapidly at a growth rate of about 15%. The ownership of the mold industry has also undergone tremendous changes. In addition to state-owned professional mold factories, collectives, joint ventures, sole proprietorships an...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology and solve the problems of offset between the plate and the upper surface of the lower die and the inability to automatically remove the material, the present invention proposes a sheet metal stamping arc die

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