Die for manufacturing drawing piece

Abstract

The invention relates to a die for manufacturing a drawing piece. The die is particularly suitable for stamping and drawing of thin iron plates and is composed of a female die body, a male die body, amale die body bracket and a blank holder. The die is mainly technically characterized in that hard steel cutting edges are spliced and inserted to the drawing and forming parts of the female die bodyand the male die body, and the other parts are filled with composite materials. Compared with an existing steel die and a low-melting point alloy die, the die has the advantages of being easy and convenient to manufacture, short in cycle, low in cost, high in precision and good in rigidity, is particularly suitable for manufacturing changeable appearance shapes of new products and is an economicand practical ideal die.

Description

technical field [0001] The invention belongs to the technical field of die preparation, and in particular relates to a drawing part manufacturing die used for punching and stretching thin iron plates. Background technique [0002] Existing molds for mechanical stamping and stretching generally adopt all-steel structures, and quite complex machining is required during the manufacturing and forming process. Therefore, there are problems such as long mold design and manufacturing cycle, high processing costs, and large consumption of metal materials, etc., and Many occasions are limited by mechanical processing equipment, which easily leads to low mold precision. If a low-melting point alloy mold is used, although it is easier to manufacture and shape, and the precision is better, it has disadvantages such as poor rigidity, low service life, and high cost. Contents of the invention [0003] In view of the above-mentioned problems existing in the prior art, the object of the ...

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Problems solved by technology

[0002] Existing molds for mechanical stamping and stretching generally adopt all-steel structures, and quite complex machining is required during the manufacturing and forming process. Therefore, there are problems such as long mold design and manufacturing cycle, high processing costs, and large consumption of metal materials, etc., and Many occasions are limited by mechanical processing equipment, which may easily lead to low mold precision

If the low-melting point alloy mold is used, although it is easier to manufacture and shape, the precision is better, but there are disadvantages such as poor rigidity, low service life, and high cost.

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