The curved surface adjustment grinding system and the NC grinding device, NC program creation manner for optical part grinding, NC program creation manner for grinding and creation manner of the two-dimensional coordinate point group file for NC program, in the curved surface adjustment

摘要

PROBLEM TO BE SOLVED: To provide a high-efficiency and high-accuracy corrective polishing system capable of easily converting a correction amount of undulation and a shape error as an NC program with high accuracy.;SOLUTION: This curved surface corrective polishing system executes a curved surface polishing process for reducing the undulation and the shape error by a preprocess on the basis of a shape measurement result. The system has a position command point calculation part generating polishing-position command points at intervals necessary for operation of a machining machine along a tool contact track on a predetermined machined surface with required position accuracy under a speed command, such that the contact track is equally divided on the contact track passing the center of a machining area; a two-dimensional coordinate point group file showing the polishing-position command points in a two-dimensional coordinate system and a storage part storing the two-dimensional coordinate point group file; a shape estimation part extracting the undulate and the shape error; and a polishing amount calculation part outputting a polishing removal amount necessary for correction of the error in each the position command point.;COPYRIGHT: (C)2002,JPO