Internal deep groove annular piece precision rolling forming method and device

Abstract

The invention relates to an internal deep groove annular piece precision rolling forming method and a device. The method includes a first step of obtaining an annular blank, a second step of placing the blank in an annular driving roller, wherein the outer wall of the blank is attached to the inner wall of the driving roller, a second step of respectively arranging an upper baffle and a lower baffle at the upper end and the lower end of the blank, a fourth step of placing a core roller in the blank, wherein a step is disposed on the core roller, a fifth step of enabling the driving roller and the blank to rotate around the central axis of the blank, wherein the core roller does linear feed movement along the radial direction to approach the blank, and a sixth step of enabling the core roller to stop feeding when the wall thickness of the blank reaches a predetermined value and then obtaining a formed internal deep groove annular piece. The device comprises the driving roller (1), the core roller (2), the upper baffle (4), the lower baffle (5), a rotating driving device and a linear driving device. The internal deep groove annular piece precision rolling forming method and the device are adopted to integrally form the internal deep groove annular piece in one time through continuous partial plastic deformation, and have the prominent advantages of saving energy, saving materials, reducing production cost and improving production efficiency and product performance.

Description

technical field [0001] The invention relates to the field of rolling forming of rings, in particular to a precision rolling forming method and device for inner deep groove rings. Background technique [0002] The inner deep groove ring is a typical special-shaped cross-section cylindrical part, which is widely used in machinery, automobiles, trains, ships, metallurgy, chemical industry, energy, aerospace and other industrial fields. It not only requires high geometric accuracy, but also requires high service performance and service life, which puts forward higher requirements for its forming and manufacturing quality. Currently, inner deep groove rings are mainly manufactured by ring rolling and subsequent machining. That is, the simple rectangular cross-section ring is first formed by ring rolling, and then the inner deep groove ring is obtained by cutting. This processing method has many steps, low production efficiency, and low material utilization rate, and the cutting...

AI Technical Summary

Problems solved by technology

This processing method has many procedures, low production efficiency, low material utilization rate, and the cutting process destroys the metal flow line of the material, reducing the mechanical properties and service life of the inner deep groove ring.

Images