Application of viscous-elastic materials in cantilever optical components of ultra-precision turning

Abstract

The invention discloses an application of viscous-elastic materials in being taken as a flexible supporting structure of a clamp in cantilever optical components of ultra-precision turning, wherein the viscous-elastic materials particularly refer to the materials having different mechanical properties under the action of different frequency forces; for example, when the cantilever optical components are clamped to the clamp or detached down from the clamp, the fluidity of the viscous-elastic materials is expressed; and when the cantilever optical components are in the process of turning after being clamped, the solidity of the viscous-elastic materials is expressed. According to the application, the operation is simple and the use is convenient and quick; and meanwhile, the high precision and the high efficiency of the optical component machining can be ensured.

Description

technical field [0001] The invention relates to the field of single-point diamond ultra-precision cutting processing of optical parts, in particular to a method for ultra-precision cutting processing of cantilever optical parts with low structural rigidity. Background technique [0002] In modern optical systems, especially in aerospace equipment, the requirements for lightweight imaging systems and compact space structures are getting higher and higher, and some thin-walled and cantilever optical components are widely used by optical designers. Aluminum alloy materials have been widely used in infrared space mirror systems due to their low density, low cost, high thermal conductivity, and low production cost. The most efficient machining method for aluminum alloy materials is single point diamond turning (SPDT) technology. The aluminum alloy optical parts processed by this technology can achieve submicron-level surface shape accuracy and nano-level surface roughness. At th...

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Problems solved by technology

[0004] In the processing of cantilever optical parts with low structural rigidity, if the parts are directly turned without introducing support, the cantilever part with low structural rigidity will vibrate due to the excitation of cutting force, which seriously deteriorates the shape accuracy and surface roughness after processing , at the same time aggravate the wear of the tool and affect the life of the processing system; if rigid support is used to increase the stiffness of the low structure part, the vibration of the cantilever part can be effectively avoided, and the surface roughness of nanometer level can be obtained, but the part will be damaged when clamping and dismounting Clamping deformation occurs, which affects the surface shape accuracy of final processing; while the flexible support method cannot provide sufficient structural rigidity, and the support effect is not significant

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