Parallel die parting multidirectional loading rotary extrusion forming die and die opening method

Abstract

The invention discloses a parallel die parting multidirectional loading rotary extrusion forming die and a die opening method. A solid bar material serves as a blank, and the purpose of forming a circular cross-section component with the side face provided with axial stair-shaped inner ring ribs through a short process is achieved. In the forming process, a female die drives the blank to rotate, amale die carries out feeding in the axial direction of the center of the female die, and meanwhile, the male die is divided and closed to different degrees so that the circular cross-section component with the side wall provided with the axial stair-shaped inner ring ribs can be formed. The parallel die parting multidirectional loading rotary extrusion forming die is mainly characterized by the male die, the working part of the male die is composed of two symmetric parts, the symmetric faces are die parting faces, when the two half male die parts slide along the parallel die parting faces, itcan be guaranteed that the internal diameter of the formed cylindrical part is changed due to the difference of the two male die part positions, meanwhile, it is also guaranteed that a gap does not exist between the two male die parts in the direction perpendicular to the die parting faces, and the situation that the blank is extruded out of the part between the two male die parts is avoided. Theparallel die parting multidirectional loading rotary extrusion forming die and the die opening method have the advantages that the process procedure is short, the material utilization rate is high, operation is convenient, and resources are saved.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to a cylindrical part with a stepped inner ring rib along the direction of the central axis and a closed bottom of the cylinder, which is used for pressure processing with a solid bar as a blank through a rotary extrusion process. forming mold. Background technique [0002] With the development of society, saving resources and reducing weight has become the direction pursued by various manufacturing companies and even countries. Especially in aerospace, national defense, transportation and other industries, saving resources and lightweight means lower production and use costs and less energy consumption for these industries, and it brings more advantages for transportation equipment The mobility and stronger transportation capacity determine the competitiveness of the relevant enterprises themselves, and it is also a manifestation of the comprehensive strength of a country as a whol...

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Problems solved by technology

[0004] However, at present, the cylindrical parts with stepped inner ring ribs along the central axis can be mainly processed by machining, but the cutting amount is large, the material utilization rate is low, and the processing cycle is long. The internal streamline of the finished material is incomplete and affects its mechanical properties and service life, which does not meet the requirements of current development

However, general pressure processing is not easy to realize the processing of cylindrical parts with a closed bottom and a cylindrical wall with a stepped inner ring rib along the direction of the central axis.

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