Punch interchange method for punching holes with different shapes and specifications

Abstract

The invention belongs to the technical field of mechanical cold machining, and particularly relates to a punch interchange method for punching holes with different shapes and specifications. The punchinterchange method for the punching holes with different shapes and specifications is provided, the main implementation process comprises the following steps that firstly, the end part of the punch (3) is inserted into a position hole of a mold handle (1); then a nut (2) is screwed into the thread of the mold handle (1), and the punch (3) is fixed to the mold handle (1) to form an integral male mold; and then the mold handle (1) of the integral male mold (1) is inserted into a sliding block of a punch press to be punched. The male mold is designed to be a combined type, so that the practicability is high, and the interchangeability is good; if the punch (3) is abraded or broken, only the punch is changed (3), so that the production is not delayed, the cost is reduced, the positioning is reliable, the operation is convenient, and the production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical cold working, and in particular relates to a punch exchange method for punching holes with different shapes and specifications. Background technique [0002] In some products, square holes are punched on multiple parts such as locking rocker arms, release rocker arms, and screws, or notches are punched on sheets, and the holes and notches are relatively small in size and have different shapes. Usually, when designing this type of punching die, an integral punch design structure is generally adopted, that is, the die handle, backing plate, fixing plate, and punch (punch) are integrated into one. During the punching process of the integral punch, problems are likely to occur: First, because the cutting edge of the punch is sharp and the punching wears quickly, it is often necessary to remove the grinding edge during the production process, and then reinstall the die folder. Second, the length o...

AI Technical Summary

Problems solved by technology

During the punching process of the integral punch, problems are likely to occur: First, because the cutting edge of the punch is sharp and the punching wears quickly, it is often necessary to remove the grinding edge during the production process, and then reinstall the die folder

Second, the length of the working part of the punch is relatively slender due to the size of the hole or groove, resulting in poor strength of the punch and easy punching, so prepare a new punch

Therefore, it brings trouble to the operator to repeatedly check the mold, and affects the production progress; and the upper part of the punch (die handle, etc.) belongs to repeated manufacturing, which naturally leads to increased manufacturing costs and reduced production efficiency.

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