PROCESSING DEVICE AND PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a processing device and processing method with high accuracy which can obtain higher form accuracy by estimating a deflection amount of a working tool only by a change in a cutting stock considering an abutting length to a workpiece of the working tool.SOLUTION: A processing device main body part 1 is structured of a work spindle 3 for holding a workpiece 2, a tool spindle 6 which holds the working tool 5 and rotates the working tool 5 around a rotation shaft 6C; a motor 11 which drives to rotate a tool spindle holder 7 for supporting the tool spindle 6; and an ammeter 19 for measuring a current supplied to the tool spindle 6. High form accuracy can be obtained by estimating a deflection amount of the working tool, and processing and adjusting an angle of the rotation shaft of the tool spindle so as to offset an angle deviation of a processed surface of the workpiece.