Method and apparatus for measuring and machining workpieces

A method of cutting machining and measuring workpieces with rotationally symmetrical, concentric or eccentric surfaces, and, in dependence thereon correcting the tool reference position with respect to the machine tool for a plurality of working points on the workpiece, wherein said method includes the following steps:

• by means of a measuring sensor, only the maximum actual spacing of the workpiece contour to be measured from a reference value, is ascertained for each measurement angular position of a workpiece;
• for each measurement angular position, the measured deviation between the actual spacing and the reference spacing is ascertained;
• at least for the measurement angular positions the respective tool reference position is automatically corrected by a correction value which is automatically calculated from the respective measured deviation;
• and
• the tool is displaceable in one direction.

A machine tool, said machine tool comprising:

• at least one spindle for receiving and rotationally driving a workpiece about an Z-axis on the center of rotation;
• at least one machining unit for moving the tool at least in an X-direction in dependence on the rotational position of the workpiece spindle (C-axis);
• and
• a measuring device.