Patent ID: 6167325
Filing Date: 2000-12-26
Classification: G05B,Y02P

Abstract:
A CNC data correction method comprising steps of:(a) carrying out machining by a CNC machine tool in accordance with created NC machining data to obtain actual machining position data corresponding to a command position for the starting or ending point of each block of the NC data, and the difference between an actual machining position and the command position for the starting or ending point of each block of the NC data;(b) obtaining a data correction value based on the difference; and(c) setting a point obtained by advancing the command position for the starting or ending point in the commanded NC machining data oppositely from the actual machining position by a distance corresponding to the data correction value obtained in said step (b) on a straight line connecting the command position for the starting or ending point of the block of the NC data and the actual machining position corresponding thereto, as a modified command position for the starting or ending point of the block of the NC data.