Method and device used for guaranteeing wall thickness of metal plate forming thin-wall ring part

Abstract

The invention discloses a method and device used for guaranteeing the wall thickness of a metal plate forming thin-wall ring part. The device comprises a ring body (1) and a pressing plate (2); the upper end face of the ring body (1) is a plane which is provided with an annular groove; the cross section shape of the annular groove is consistent with the cross section shape of the non-machining portion of the thin-wall ring part; the pressing plate (2) is located above the annular groove; and the bottom face of the pressing plate (2) is a plane, and the pressing plate (2) can move in the axialdirection and the radial direction of the ring body (1). During machining, firstly, the planeness standard exceeding position of the to-be-machined portion of the metal plate forming thin-wall ring part is compressed, and after it is guaranteed that the planeness of the portion is qualified, then remaining non-compressed positions are machined to the required thickness; and then the positions machined to the required thickness are compressed, and after it is guaranteed that the planeness of the portions is qualified, remaining non-compressed positions are machined to the required thickness.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, in particular to a device and a method for mechanically processing a sheet metal forming thin-walled circular piece. Background technique [0002] Sheet metal forming thin-walled ring parts ( figure 1 ) parts that require re-machining are found to be deformed during the forming process of the parts, resulting in poor flatness of the parts, and the parts have thin walls and small thickness tolerances, so the requirements for machining are relatively high. The way of pressing the outer circle, auxiliary support lower end surface and processing the upper end surface is to ensure the wall thickness. Since the lower end surface of the part has a large flatness, the positioning datum cannot be corrected by using the auxiliary support lower end surface, and the part cannot be supported by multiple points. Eliminate deformation and vibrating tool effect during processing, resulting in that...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to propose a device and method for ensuring the wall thickness of sheet metal forming thin-walled circula

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