| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform position correction of a tool to be mounted on a tool holder with micron order accuracy in the radial direction thereof while maintaining high rigidity. <P>SOLUTION: A machine tool 10 comprises a tool holder 20 which can rotate integrally with a spindle 16, a ring-shaped elastic holder 24 having one end being bonded to the tool holder 20 and the other end being provided with an open end 24a to which blade tools 22a, 22b are attached, an operation shaft member 26 having the end projecting axially outward of the elastic holder 24 and movable in the axial direction relative to the tool holder 20, a transformation mechanism 28 which is linked with the operation shaft member 26 and transforms the moving operation thereof into the enlarging/contracting operation of the open end 24a in the radial direction, and a moving mechanism 30 which moves the operation shaft member 26 in the axial direction. <P>COPYRIGHT: (C)2011,JPO&INPIT |
