Method for stamping multi-station progressive die

Abstract

The invention discloses a method for stamping a multi-station progressive die. Structure waste materials, process waste materials and various forming which need to be removed of a strip of a product to be stamped are divided into multiple characteristic units according to a stamping process, the length of the characteristic unit with the most occurrence number in the characteristic units in a feeding direction is set as a step pitch, multi-station progressive stamping is carried out on strip feeding through the step pitch, the processing of other characteristic units are controlled and stamped through electric control stamping pins arranged at different process positions, when the strip is sent to a certain process position, the electric control stamping pin corresponding to the process position carries out stamping, and therefore when feeding is carried out through the set step pitch, the characteristic units of the strip are gradually processed, the strip is cut off finally, and stamping is completed to obtain the product. Through the adoption of the die designed through the method, the total length of the die can be controlled around 1m, die materials are saved, the manufacturing difficulty, the manufacturing cost and the manufacturing period of the die are reduced, and the manufacturing precision of the product is improved.

Description

technical field [0001] The invention belongs to a die punching method, in particular to a multi-station progressive die punching method. Background technique [0002] The multi-station progressive die is a multi-process integrated die developed on the basis of a single-process stamping die. Various stamping processes such as blanking, bending, forming, and deep drawing can be completed in the same set of dies. The specific process route is: decompose the internal hole punching or external irregular shape punching and forming of complex parts into simple or easy-to-stamp geometric shapes, so as to realize step-by-step stamping. Multi-station progressive dies usually use high-speed stamping equipment, which can greatly improve labor productivity and save energy and power. [0003] Multi-station progressive die is suitable for stamping small size, thin sheet material, complex shape and large batch of stamping parts. For particularly complex large-sized stamping parts, due to ...

AI Technical Summary

Problems solved by technology

Multi-step feeding increases the total length of the mold and manufacturing difficulty; multi-step feeding will also cause feeding errors, traction errors and positioning errors, which seriously affect the punching accuracy of the product; multi-step feeding due to the long total length of the mold requires Large-size templates increase the mold material and increase the difficulty of heat treatment and other processes

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