| 摘要 |
The machine tool includes a displacement measuring unit (30) to measure the displacement (”L) of a workpiece center-to-blade tip distance (L) which is the distance between a center equivalent position (Xw) of a workpiece support surface of a workpiece support unit (21) and a blade tip equivalent position (Xt) of a tool support unit (22) in a direction orthogonal to a spindle axis (O). This displacement measuring unit (30) measures the displacement (”L) by measuring the displacement of a continuous path (C), lying on a path (C) continuous between the center equivalent position (Xw) of the workpiece support unit (21) and the blade tip equivalent position (Xt) and excluding a processing movement region (E). The displacement measuring unit (30) includes workpiece side and tool side linear position detecting units (31, 32). A measured value of the displacement measuring unit (30) is used in correcting an X-axis command value. |
