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Method for stamping multi-station progressive die

A multi-station and manufacturing method technology, applied in the field of die punching, can solve the problems affecting the punching accuracy of products, traction error, increase die material, etc., and achieve the effect of reducing two-way traction links, improving manufacturing accuracy, and reducing manufacturing difficulty.

Inactive Publication Date: 2013-10-23
HUNAN COMM POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Method for stamping multi-station progressive die
  • Method for stamping multi-station progressive die
  • Method for stamping multi-station progressive die

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Embodiment Construction

[0014] specific implementation plan

[0015] The method of the present invention is illustrated by taking the punched product with material as an example. figure 1 As shown, the structural features of this product are divided into two types: the narrow and long groove e in the middle part and the regular and irregular toothed f in the outer contour part. In the punching method, the feeding step of the punching strip is L, and L is the length M of the product plus the length N of the edge. When designing the mold, such as image 3 As shown, the narrow and long groove e is divided into two features, that is, feature a1 and feature a2. For regular and irregular tooth shapes f, starting from the requirements of mold processing technology, it is divided into seven features such as feature a3-feature a9. Among them, feature a5 is the part that needs to be cut off caused by the vertical edge (ie, process waste), and the remaining features a3, a4, a6-a9 are the parts that need to be...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10
Inventor 宁建华海争平毛建中
Owner HUNAN COMM POLYTECHNIC
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