Shrink-fit chuck for holding tool in machine tool, has pre-positioning part arranged eccentrically with respect to internal receive for receiving tool shaft

摘要

The chuck has a fixing shaft (12) for connection to a machine tool, and a thermally expandable shrink-fit part (14) having a internal recess (16) for receiving a tool shaft, and a pre-positioning part (20). The pre-positioning part is arranged eccentrically with respect to the internal recess, and is preferably formed from the circumferential surface of a circular cylinder. An independent claim is included for a shrink-fit device for clamping tools in a shrink-fit chuck.