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

A technology of magnetorheological polishing and optical parts, which is applied in the field of magnetorheological polishing, can solve the problems of limited processing methods, inability to guarantee, and problems in the processing of large-diameter optical parts, and achieve simple and convenient workpiece clamping and satisfy processing requirements. effect of ability

Inactive Publication Date: 2008-08-27
NAT UNIV OF DEFENSE TECH
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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:

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

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Embodiment Construction

[0067] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0068] Such as Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 with Figure 14 Shown, a kind of magneto-rheological polishing device of the present invention is used for large aperture aspherical optical parts, and it comprises machine tool 1, polishing device 2, is used for providing the magneto-rheological polishing liquid circulating system 3 of stable performance polishing liquid and with In the control system where the above components are connected, the machine tool 1 has four or more degrees of freedom, and the polishing device 2 is fixed on the machine tool 1 and is located directly above the workpiece to be processed on the machine tool 1 .

[0069] see Figure 10 , Figure 11 with Figure 12 As shown, in this embodiment, the polishing device 2 includes a double-shaft support mechanism 201 and an inverte...

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Abstract

The invention discloses a magnetorheological finishing device for large-caliber aspheric optical parts. The magnetorheological finishing device comprises a machine tool, a finishing device, a magnetorheological finishing liquid circulating system for providing the finishing liquid with stable performance, and a control system connected with the components described above. The machine tool has four or more than four degrees of freedom. The finishing device is fixed on the machine tool and is positioned over the workpiece on the machine tool to be processed. The device has the advantages of simple and compact structure, low cost, simple control, wide range of application, and strong processing capacity, and is used for large-caliber aspheric optical parts.

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...

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Application Information

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IPC IPC(8): B24B13/02B24B57/02B24B41/02
Inventor 彭小强戴一帆李圣怡王建敏胡皓宋辞刘晓东
Owner NAT UNIV OF DEFENSE TECH
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