Eccentric positioning device for tools and workpieces

摘要

A device for eccentrically moving and positioning a tool, workpiece, or measuring instrument in connection with machining or measuring operations where a large outer drum is rotatably arranged inside a headstock and carries in an eccentrically offset parallel bore a smaller inner drum which, in turn, carries a likewise eccentrically offset parallel spindle sleeve and work spindle which are movable axially in relation to the headstock. Each drum and the work spindle have a drive unit and a clamping device, the drive units of the drum including a main drive and a positioning drive.