Magnetic current changing polishing device for large caliber aspheric surface optical part

Abstract

The invention discloses a magneto-rheological polishing device for large-diameter aspheric optical parts, which includes a machine tool, a polishing device, a magnetorheological polishing liquid circulation system for providing stable performance polishing liquid, and the components connected with the above components For the control system, the machine tool has four or more degrees of freedom, and the polishing device is fixed on the machine tool and located directly above the workpiece to be processed on the machine tool. The invention is a magnetorheological polishing device for large-diameter aspherical optical parts with simple and compact structure, low cost, simple control, wide application range and strong processing ability.

Description

technical field [0001] The invention mainly relates to the technical field of magnetorheological polishing, in particular to a magnetorheological polishing device for large-diameter aspherical optical parts. Background technique [0002] The polishing of large-size aspheric optical parts is a key technical problem in the field of ultra-precision machining. Aspherical optical elements have the advantages of correcting aberrations to obtain higher imaging quality than spherical elements, simplifying the optical system structure, reducing system weight, improving system stability, and reducing costs, especially in satellite reconnaissance telescopes, laser weapons, and space probes. In large-scale optical systems such as , large-scale high-precision optical aspheric elements play an extremely important role. Modern space optical systems put forward higher and higher requirements for the size and precision of aspheric optical components. Above 1:2. Accuracy requirements: surf...

AI Technical Summary

Problems solved by technology

Since the magnetorheological polishing fluid cannot be recycled in this device, it cannot be guaranteed that the composition of the magnetorheological polishing fluid will not change for a long time, that is, the "polishing mold" will not change, and the processing time of large-scale optical parts Very long, so the system is not suitable for the processing of large-sized optical parts

Chinese patent application number: 200610043079.1, invention name: magnetorheological flexible fine grinding and polishing equipment and method, this invention can not solve the problem of large-diameter optical parts processing

To sum up, due to the limitations of the processing methods used or some technical problems that have not been solved, there is no method and equipment for magnetorheological polishing of large-size aspheric optical parts in China.

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