Werkzeugspannvorrichtung fuer Werkzeugmaschinen

摘要

A machine tool with a device for effecting rapid tool changes comprising a frame carrying a rotatable spindle capable of being coupled to a tool through the intermediary of a tool holder to which the tool is secured. A mechanism for lining up the spindle, from whatever position it is in, to a predetermined angular setting in order to allow engagement of the tool holder with the spindle, and translational locking devices inside the spindle operative to provide a coupling to the tool holder to operate the spindle after the tool has been connected thereto are provided.