METHOD OF MACHINE TOOL CALIBRATION

摘要

Methods are described for calibrating a turning machine (30) having a first rotatable portion or chuck (4;32;202) for holding a workpiece. The first rotatable portion (4;32;202) has a first feature (6;34;206) associated therewith. The method comprises the steps of using a measurement probe (10;38;204;236) to determine the position of the first feature (6;34;206), rotating the first rotatable portion (4;32;202) through an angle, and using said measurement probe (10;38;204;236) to determine the new position of the first feature(6;34;206). The use of the technique with swivel head mill-turn machines (30) is described.