Small-caliber aspherical composite precise processing machine tool

Abstract

The invention relates to a small-caliber aspherical composite precise processing machine tool, comprising a tool body (22) with a shock absorber (16), wherein the tool body (22) is provided with a first sliding table (20) which is provided with a spindle bracket (1); a second sliding table (13) is arranged correspondingly to the first sliding table (20) and is provided with a rotating bracket (17) and a supporting plate (9); the rotating bracket (17) is provided with a detecting device (18); and an inclined axis mirror grinding device (10) with a triaxial fine-tuning frame and an inclined axis magnetorheological grinding and polishing device (14) are arranged in parallel on the supporting plate (9). In the small-caliber aspherical composite precise processing machine tool, the precise inclined axis mirror grinding device and the inclined axis magnetorheological grinding and polishing device are integrated on a single tool body; through the combination of the two techniques of the precise inclined axis mirror grinding and the inclined axis magnetorheological grinding and polishing, the good controllability of the processing path is achieved, and the phenomenon of the interference is effectively prevented; and by in-place measurement of the shape of a workpiece, the error compensation processing of the workpiece is realized, and the accuracy of the shape of the workpiece is improved.

Description

technical field [0001] The invention belongs to the technical field of optical precision machining, and in particular relates to a small-caliber aspheric composite precision machining machine tool. Background technique [0002] With the rapid development of optoelectronic communication, optics, automobile, bioengineering and aerospace industries, the demand for ultra-precision small-aperture aspheric optical components has increased dramatically. The manufacture of such small-diameter aspheric optical elements is currently mainly made through glass thermocompression molding and optical plastic injection molding with high-precision molds. This kind of mold is usually made of superhard alloy, and the aspheric surface of the mold core requires submicron-level shape accuracy, nanometer-level surface roughness and minimal subsurface damage. [0003] The processing of the above-mentioned small-diameter aspheric surface generally adopts two processes of grinding and polishing, whi...

AI Technical Summary

Problems solved by technology

The disadvantage of using the above two processes is that the workpiece needs to be clamped multiple times on two different machine tools, which will cause installation errors, tool setting errors and other consequences that affect the machining accuracy; at the same time, multiple clamping consumes more Many auxiliary man-hours reduce the processing efficiency

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