A kind of isotropic deformation controllable closed rolling forming device and method of cylindrical parts

Abstract

The invention discloses an all-direction deformation controllable closed rolling forming device and method for a cylindrical part. The device comprises a driving roller, an annular sleeve mold, guiderollers and a core roller, wherein the driving roller is rotatable; the outer surface of the annular sleeve mold makes contact with the outer surface of the driving roller; the core roller is I-shapedand is arranged in the annular sleeve mold; the height of the annular sleeve mold is equal to the height of the cylindrical part; the inner diameter of the annular sleeve mold is equal to the outer diameter of the cylindrical part; the core roller comprises a vertical roller and an upper transverse roller and a lower transverse roller which are arranged at the upper end and the lower end of the vertical roller correspondingly; the height of the vertical roller is equal to the height of the cylindrical part; the outer diameter of the upper transverse roller is smaller than the inner diameter of an annular blank of the cylindrical part; and the core roller is used for carrying out linear feeding motion towards the direction of the driving roller. The all-direction deformation controllable closed rolling forming device and method for the cylindrical part have the advantages that the forming precision is high, the deformation degree in all directions and the deformation uniformity are easy to adjust and control, the production efficiency is high and the machining range is large.

Description

technical field [0001] The invention belongs to the technical field of plastic processing, and in particular relates to a controllable closed rolling forming device and method for anisotropic deformation of a cylindrical part. Background technique [0002] Cylindrical parts are key components of energy, aviation, aerospace and other equipment, such as hydrogenation reaction tank shells, launch vehicle cabins, missile casings, etc., are typical cylindrical parts. Cylindrical parts usually have a thin wall and a large height-to-thickness ratio, and plastic processing is required to improve the structural properties to ensure service reliability and life. Their structural characteristics and high performance requirements have brought great difficulties to plastic processing. [0003] The traditional plastic processing technology of cylindrical parts is free forging, which is formed by drawing and forming the mandrel. Although the process is simple, the process usually requires ...

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Problems solved by technology

[0004] The object of the present invention is to provide a closed-type rolling-forming device and method with controllable deformation in all directions of cylindrical parts. It is based on the traditional radial rolling method, and through the innovative die structure design, it can realize the axial rolling process of the rolling process. Elongation and deformation; Through reasonable blank design, the degree of deformation in all directions can be effectively controlled to meet the performance requirements of forgings, which solves the problems of large billet consumption and significant anisotropy in traditional rolling processes, improves production efficiency and reduces production costs. cost, and helps to improve product performance

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