Method for automatically determining pose of large-aperture element

Abstract

The invention discloses an automatic pose determination method for a large-aperture element, relates to the technical field of engineering optics, and is used for solving the problem that the pose of the element is uncertain due to limited positioning precision of an element clamp on a machine tool. The method is technically characterized by comprising the steps that a plurality of images of an element of the current pose on a machine tool are collected and processed, translation errors and deflection errors of any point on the element relative to the calibration pose of the element under a machine tool coordinate system are obtained, the translation errors comprise X-axis translation errors, Y-axis translation errors and Z-axis translation errors, and the deflection errors comprise X-axis deflection errors and Y-axis deflection errors; and calculating according to the translation error and the deflection error to obtain the calibration attitude of the element. According to the method, the problem that the element pose is uncertain due to limited clamp positioning precision is solved, the calibration coordinates of the point on the element moving to any station on the machine tool are obtained, and accurate position reference is provided for subsequent positioning and repairing of the defect point.

Description

technical field [0001] The invention relates to the technical field of engineering optics, in particular to a method for automatically determining the pose of a large-caliber element. Background technique [0002] Large-aperture optical components in high-power solid-state laser devices are prone to surface damage under strong laser irradiation. If these damages cannot be repaired in time, they will accelerate and expand under subsequent laser irradiation, eventually leading to component failure. In order to improve the service life of components, CO is used in engineering 2 The laser repair method is used to repair the damaged components off-line. Studies have shown that this repair method can effectively improve the damage threshold of the material and inhibit the growth of surface defects without affecting the optical performance of the component. The repaired components can be loaded into the circuit for continuous use, which saves the maintenance cost of the device. ...

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention proposes a method for automatically determining the pose of a large-diameter component to solve the problem of uncertain pose of the component due to the limited positioning accuracy of the component fixture on the machine tool. The present invention is used to determine the installation position of the component on the machine tool calibration pose

Images