| 摘要 |
A tool holder clamp device for spindle, which is for clamping in a screw-fastening manner a shank portion of a tool holder to be incorporated to a spindle (1) in a removably fittable manner relative to a taper hole (9) formed at a distal end portion of the spindle (1), includes a clamp bolt member (23) rotatably and axially movably provided in a central through-hole (19) of the spindle (1) communicating with the taper hole (9), the clamp bolt member (23) having a threaded part (25) to be screwed in a threaded hole axially formed in the shank portion of the tool holder, the clamp bolt member (23) being adapted to fix the tool holder by fastening the shank portion by means of the threaded part (25), and a drive shaft body (29) rotatably and axially movably provided in the central through-hole (19) of the spindle (1), the drive shaft body (29) being adapted by axial movement thereof to engage with the clamp bolt member (23) for drive connection therewith to drive the clamp bolt member (23). |
