Ultra-precision grinding machine tool for small-size thin-walled complicated structure part

Abstract

The invention discloses an ultra-precision grinding machine tool for a small-size thin-walled complicated structure part, belongs to the technical field of precision and ultra-precision machining, and aims at solving the problems that ultra-precision grinding of the small-size thin-walled complicated structure part with a concave surface is relatively difficult. The part is machined by adopting a small-size ball grinding wheel in an oblique shaft grinding manner; a grinding wheel spindle is arranged on a Z-axis motion platform through a turn table to form an oblique shaft grinding device; and an X motion platform and a Y motion platform form a precise two-dimensional device in a ''cross'' stacking manner to achieve two-dimensional planar motion. The motion platforms are controlled through a multi-axis control system to achieve four-axis linkage to form a machining track of the part, and interference in the machining process is avoided through coordination with spindle inclination and turn table rotation. The ultra-precision grinding machine tool has a grinding station and an electric spark grinding wheel in-situ trimming station, and in-situ trimming of the ball grinding wheel in the machining process is achieved. The ultra-precision grinding machine tool is suitable for ultra-precision grinding for the small-size thin-walled complicated structure part.

Description

technical field [0001] The invention belongs to the technical field of precision and ultra-precision processing. Background technique [0002] At present, precision and ultra-precision processing technology occupies an important position in related fields such as cutting-edge products, defense industry and microelectronics industry. Relevant industries have also put forward higher and higher processing requirements for the required parts, not only requiring high surface accuracy, surface roughness and low sub-surface damage, but also more complex shapes and diversified materials. , in addition to the traditional plastic metal materials, but also to the development of brittle non-metallic materials. With the continuous development of ultra-precision grinding technology, especially the super-abrasive grinding technology with many advantages, it has played an irreplaceable role in the processing of such parts. [0003] In the field of aerospace, related core components also h...

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Problems solved by technology

[0004] The present invention aims at the difficult problem of ultra-precision grinding of small-sized thin-walled complex structural parts with inner concave surface, and proposes a machine tool for ultra-precision grinding of small-sized thin-walled complex structural parts

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