Rotary deep drawing forming mold of thin-wall cup-shaped part

Abstract

The invention discloses a rotary deep drawing forming mold of a thin-wall cup-shaped part. The mold comprises a punch, a forming female mold and a lower mold plate, the forming female mold is coaxially provided with a composite mold cavity allowing a blank to be placed in, the end face of the contact of the punch and the blank is a conical boss mold face, the composite mold cavity is formed through compositing of a V mold cavity in the upper portion and a rectangular mold cavity in the lower portion, the two sides of the connecting position of the V mold cavity and the rectangular mold cavityare each provided with multi-pass arc convex face tables making contact with the blank, the multi-pass arc convex face tables are sequentially mounted from top to bottom, the arc radii of the convex face tables are sequentially increased, the number of the arc convex face tables on one side is larger than that of the arc convex face tables on the other side by one, the forming die mold is an asymmetric annular rotation body, the additional arc convex face table is mounted on the highest position on the side, according to the mold, the steel forming property can be improved, the forming component comprehensive mechanical property can be improved, and the defect that strength differences of all directions of a traditional thin drawing forming thin-wall cup-shaped part are large can be overcome.

Description

technical field [0001] The invention belongs to the field of metal plastic processing technology and forming technology, in particular to a technology for deep drawing and forming of iron and steel materials, in particular to a rotary deep drawing forming die for thin-walled cup-shaped parts. Background technique [0002] With the rapid development of aerospace, national defense, transportation and other fields, it is urgent to use high-strength and lightweight components to achieve lightweight, among which cup-shaped components are one of the most representative structural forms. Deep drawing is essentially the process of gradually transferring the material of the flange part of the blank to the cylinder wall. During the transfer process, the material of the flange generates tensile stress in the radial direction due to the effect of the drawing force. Due to the diameter of the flange part Gradually becomes smaller, extrusion occurs between the materials of the flange part...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to propose a rotary drawing die for thin-walled cup-shaped components, which can effectively improve the formability of steel materials, improve the comprehensive mechanical properties of formed components, and overcome the traditional deformation. Disadvantages of large difference in strength in different directions of thin-walled cup-shaped components formed by thin deep drawing

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