Revolution box body type air pressure force-application numerical control polishing device with adjustable large eccentricity

Abstract

The invention discloses a revolution box body type air pressure force-application numerical control polishing device with adjustable large eccentricity in the field of processing of ultraprecise optical surfaces. The numerical control polishing device comprises a motor, a speed reducer, a pneumatic rotating joint, a fixed frame, a gear, a belt, a rotation driving rod, a rotation transmission rod, a rotation shaft, a revolution driving sleeve, a revolution box body, a rotation shaft fixed block, an eccentric adjusting seat, a cylinder, a ball head and a polishing disk. When the numerical control polishing device is in work, continuous adjustment of large eccentricity is achieved by adjusting the position of the rotation shaft fixed block on the eccentric adjusting seat. Gas is conveyed to the cylinder sequentially through the pneumatic rotating joint, the rotation driving rod and the rotation shaft, pressured is implemented on the polishing disk finally, and the pressure acting on the polishing disk is adjusted by quantitatively changing air pressure to achieve deterministic processing of optical elements. The numerical control polishing device is suitable for ultraprecise surface processing of heavy-aperture optical elements.

Description

technical field [0001] The invention relates to a small tool head polishing device, in particular to an adjustable large eccentricity revolving box type air pressure force numerical control polishing device, which belongs to the field of ultra-precision optical surface processing. Background technique [0002] In recent years, the new optoelectronic imaging system has increasingly shown the trend of large field of view and high resolution technology. From the perspective of resolution model, it is required that the key optical components in the optical system, including reflective / transmissive mirrors, have large aperture, aspheric Axis, high-precision technical characteristics, which put forward higher requirements for the existing optical processing equipment, and then promote the development of new tool structure and process methods. [0003] In order to implement computer numerical control grinding and polishing of high-precision optical reflection / transmission mirrors, ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of unstable pressure, variable quantity, insufficient torque and small eccentricity in the traditional revolution and rotation numerical control polishing device, the present invention proposes an adjustable large eccentricity revolution box-type air pressure force numerical control polishing device. By adopting a new type of transmission structure and air pressure force method, the problem of unstable removal function caused by unstable pressure and indefinite quantity in the optical surface processing of small numerical control tools is solved, and at the same time, the large-scale optical element processing required is solved. The problem of eccentricity and large torque is a precision optical surface processing device with exquisite structure, high degree of integration and good stability.

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