Patent ID: 7331739
Filing Date: 2008-02-19
Classification: B23Q,G05B,Y10T

Abstract:
1. A method for machining a workpiece by moving a working tool and the workpiece relative to each other, said method comprising steps of: generating a positional command based on a predetermined NC machining program; carrying out the machining operation for the workpiece in accordance with the generated positional command; interrupting the machining operation for the workpiece; detecting a wear amount of the working tool upon the interruption of the machining operation for the workpiece; and correcting a tool edge position of the working tool upon the restart of the machining operation for the workpiece to coincide with the tool edge position of the working tool upon the interruption of the machining operation for the workpiece, based on the detected wear amount of the working tool, and restarting the machining operation for the workpiece from the set tool edge position of the working tool.