| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a machine tool capable of processing a workpiece, while taking account of change in dimensions caused by the bending or heat, occurring at the workpiece during the processing.SOLUTION: A machine tool 1 includes: a main body part 10; a tool holding part 30 for holding a tool 2; movement means 40 for moving the tool held by the tool holding part relatively with respect to the main body part; and a workpiece holding part 20 supported by the main body part, for holding a workpiece W extending in an axial direction Z. At the main body part, there are provided multiple sensors 50 for measuring the distance to the workpiece held by the workpiece holding part. Each sensor measures the distance to a position on the workpiece, which is different from positions the distance to which are measured by the other sensors, with respect to the axial direction of the workpiece. The machine tool further includes a controller 60 for determining an outer shape of the workpiece on the basis of measurement results of the respective sensors, and controlling the movement means on the basis of the result of determining the outer shape of the workpiece. Each sensor can measure the distance to the workpiece, with the tool held at the tool holding part.</p> |
