Fixture for grinding processing ultra-thin wall parts

Abstract

The invention discloses a fixture for grinding processing ultra-thin wall parts, which comprises a mandrel of which the two ends are respectively provided with a step; a conical bevel with the gradually enlarged diameter is formed from the end face of the step to the middle part of the mandrel, and is sleeved with a sleeve; the inner wall of the sleeve is matched with a cone of the conical bevel of the mandrel; the outer end face of the sleeve is pressed tightly by a pressure plate arranged on the step of the mandrel; and the pressure plate is adjusted and tightly pressed by an adjusting device. By adopting the fixture, a plurality of ultra-thin wall parts are subjected to the grinding processing in a combining way, so that the rigidity of the ultra-thin wall parts easily deformed originally is increased, parts are all difficultly deformed and can be processed through a common processing mode and common equipment by general technicians, and the yield can be also improved.

Description

technical field [0001] The invention relates to the field of precision machinery manufacturing, in particular to a processing fixture for ultra-thin-wall parts. Background technique [0002] The processing of existing ultra-thin-walled parts basically adopts the processing of a single part. The steps are: 1. Turning and grinding: In order to prevent the deformation of the workpiece during processing, special precision fixtures and blanks are usually used to increase the allowance , Choose measures such as careful and slow processing by high-level technical personnel to reduce the deformation of the processed parts and improve the product qualification rate; 2. Heat treatment: heat treatment of ultra-thin-walled parts is very difficult, because ultra-thin-walled parts are particularly easy to deform, so adopt Single-piece fixing method (inner support), increasing spare parts, adopting vacuum heat treatment furnace, etc. It has great defects: 1. Turning and grinding single-pi...

AI Technical Summary

Problems solved by technology

It has great defects: 1. Turning and grinding single-piece processing is extremely difficult because the parts are too thin and the processing deformation is large; and because of the large amount of blank left, the processing is very time-consuming and the scrap rate is high; moreover, high-level technical personnel Very scarce, the cost of employment is huge

2. The heat treatment of ultra-thin-wall parts must use high-grade heat treatment furnace, which not only greatly increases the cost, but also has great limitations

[0003] In short, the existing technology adopts single-piece processing of ultra-thin-walled parts, which is not only time-consuming and labor-intensive, but also inefficient, and the means for controlling the deformation of the processed parts are still extremely limited, and a large amount of waste will be generated if there is a slight error. Taste

Therefore, if multiple workpieces can be processed in one piece at the same time, and then cut for some subsequent processing, the above defects can be overcome, but this requires the design of a new fixture

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