A Manipulator Positioning Method for Spatial Surface Polishing of Optical Elements

Abstract

The invention provides a manipulator positioning method for polishing the space curved surface of the optical element, which is used to solve the positioning problem of the manipulator in the prior art when the space curved surface is polished and improve the positioning accuracy. The manipulator positioning method first processes a right-angle mark on a certain positioning area on the optical element as a workpiece coordinate system, and then fixes the element on the workbench; controls the manipulator to process at least three resident spots in the positioning area, and the three resident spots Sequential connecting lines form a right angle as the processing coordinate system; measure the coordinates of the three resident spots in the workpiece coordinate system and the diameter size at the maximum diameter, calculate the spatial position relationship of the processing coordinate system relative to the workpiece coordinate system, and according to the spatial position relationship , adjust the manipulator to complete the positioning. The invention completes the positioning of the manipulator during the polishing of the spatial optical curved surface with precise positioning, is suitable for technological processes such as spatial curved surface and off-axis aspheric surface polishing, has high processing precision, and simultaneously improves the polishing efficiency of the spatial curved surface.

Description

technical field [0001] The invention belongs to the field of optical element processing, and in particular relates to a manipulator positioning method for polishing optical element spatial curved surfaces. Background technique [0002] Due to the high requirements on transparency and dimensional accuracy of optical components, high-precision polishing is required during processing. Traditional equipment assists manual polishing, which not only has low polishing efficiency, but also cannot guarantee the accuracy. Applying the manipulator to the polishing of optical components, especially for the high-precision polishing process of large-diameter and spatially curved optical components, has an effect that cannot be achieved by manual polishing. Manipulator polishing is to install polishing tools such as airbags, asphalt discs, and polyurethane discs on the industrial robot arm, and control the movement mode and speed of the manipulator through the numerical control program to...

AI Technical Summary

Problems solved by technology

However, when the surface of the optical element is a curved surface, the curve structure is complex and there is no axis of symmetry. The positioning method of the industrial robot is no longer suitable for the polishing of the optical element, and the robot cannot complete the polishing of the curved surface of the optical element.

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