Ultra-precision turning and clamping device for optical parts

By designing an ultra-precision turning and clamping device for optical parts including fixture pressing plate, fixture base, connecting plate and locking device, the deformation and reference consistency of double-sided free surface processing of optical parts is solved, and high-precision and stable processing effect is achieved.

CN119870535APending Publication Date: 2025-04-25CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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Patent Information

Application Number
CN202411865921.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

It is difficult for the prior art to realize double-sided free curved surface processing of optical parts, especially thin-walled conformal optical windows. The traditional clamping method cannot meet its processing needs, resulting in the parts being easily deformed and the processing standards are inconsistent.

Method used

An ultra-precision turning and clamping device for optical parts is designed, including fixture pressing plate, fixture base, connection plate and locking device. Through the cooperation of fixture base and fixture pressing plate, combined with the distribution of multiple locking devices, the low deformation and double-sided free curved surface processing of the parts are achieved.

Benefits of technology

This device can effectively fix optical parts, avoid large deviations in the surface optical axis during processing of the upper and lower surfaces, realize the reference consistency of double-sided processing, and improve processing accuracy and stability.

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Abstract

The invention relates to the technical field of optical part ultra-precision machining, in particular to an optical part ultra-precision turning clamping device which comprises a clamp pressing plate, a clamp base, a connecting plate and a locking device, the clamp base is installed on the first end face of the connecting plate, and the second end face of the connecting plate is used for being connected with a machining device. The clamp pressing plate is installed on the upper end face of the clamp base in a covering mode and used for being matched with the clamp base to achieve unification of a part coordinate system and a machine tool coordinate system, and the multiple locking devices are installed on the clamp base and used for enabling a reference plane of a ball socket on the side edge of the optical part to be parallel to the plane of the clamp base. The ultra-precision turning and clamping device for the optical parts aims at solving the problem that the optical parts are prone to deformation during double-face machining.
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