Efficient numerically controlled polishing process and apparatus for great aperture aspherical optical elements

A technology of optical components and aspheric surfaces, applied in grinding/polishing equipment, metal processing equipment, optical surface grinders, etc., can solve problems such as difficulty in meeting high standards, mass production, high processing costs, and poor quality, and achieve improved processing Convergence efficiency and final machining accuracy, efficiency improvement, effect of suppressing edge sagging

Inactive Publication Date: 2007-12-19
CHANGCHUN EQUIP TECH RES INST
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Problems solved by technology

On the whole, my country's aspheric surface processing technology is still in its infancy, with high processing costs, low efficiency, and poor quality, making it difficult to meet the requirements of high standards and mass production.

Method used

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  • Efficient numerically controlled polishing process and apparatus for great aperture aspherical optical elements
  • Efficient numerically controlled polishing process and apparatus for great aperture aspherical optical elements
  • Efficient numerically controlled polishing process and apparatus for great aperture aspherical optical elements

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Embodiment 1

[0057] As shown in Figures 4 and 5, among them: 1 is the Y axis, 2 is the Z axis, 3 is the bed, 4 is the X axis, 5 is the polishing grinding head, 6 is the C axis, and 7 is the A axis; as shown in Figure 9 As shown, 11 is an adjusting screw, 12 is a piston rod, and 13 is a cylinder; as shown in Figure 10, 21 is a shaft, 22 is a worm wheel, and 23 is an expansion sleeve.

[0058] In the polishing process, since the five-axis four-linkage CNC is used to realize the polishing process, two polishing paths of Cartesian coordinates or polar coordinates can be selected at will according to the structural characteristics of the workpiece, as shown in Figures 2 and 3. In the polishing process, only three-axis numerical control linkage is needed to realize the polishing process of aspheric optical elements.

[0059] Aiming at the difficulties encountered in the NC machining process, a new NC optimization process software CCOS2 was developed, which followed the NC polishing process contr...

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Abstract

The efficient numerically controlled polishing process and apparatus for great aperture aspherical optical elements belongs to the field of precise optical machine technology. The polishing process includes: constituting polishing process model based on the profile data obtained through measurement with interferometer or other instrument, determining the machining path, speed, pressure and other parameters of the element under the control of computer to perform simulating machining, verifying the technological parameters based on the simulating machining results and determining the ultimate technological parameters, creating NC program and machining. The present invention has high machining efficiency and high machining precision.

Description

technical field [0001] The invention belongs to the technical field of optical precision machinery. Background technique [0002] 1. The status quo of technological development in foreign research [0003] With the rapid development of computer technology, aspheric surface processing technology is becoming more and more perfect, especially the development of medium and large diameter aspheric surface numerical control forming technology, so that aspheric surface processing technology has achieved the purpose of controllable processing. [0004] In developed countries, large-aperture axisymmetric aspheric optical elements adopt milling, precision grinding, rapid polishing, and precision polishing processes. The final surface processing accuracy reaches λ / 5, the roughness is 1.5nm, and the processing efficiency is high. However, in In terms of processing technology, developed countries impose technical trade barriers on my country, and advanced equipment and technology cannot ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B13/00
Inventor 聂凤明许乔崔文波吴庆堂王健王大森闫晓丽张广平胡宝共李焕东郭波张维杰修冬田晓欢刘劲松
Owner CHANGCHUN EQUIP TECH RES INST
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