Patent ID: 8545145
Filing Date: 2013-10-01
Classification: B23Q,Y10T

Abstract:
1. A machine tool having a spindle to which a tool for machining a workpiece is attached, and a structure supporting the spindle, the machine tool comprising: a spindle inclination detector including, temperature adjustment means which adjusts temperature of the structure; and a spindle inclination correction controller which corrects an inclination of the spindle due to thermal deformation of the structure, by correcting the thermal deformation of the structure while controlling the temperature adjustment means on the basis of a distance measured by the distance sensor, wherein the spindle inclination correction controller calculates an average distance measured by the distance sensor, and corrects an inclination of the spindle due to thermal deformation of the structure by correcting the thermal deformation of the structure while controlling the temperature adjustment means on a basis of the calculated average.