Dispositivo portautensile montabile su un mandrino rotante di macchina utensile

摘要

A tool holding device wherein the tool is slideably supported in the holder in order to enable a radial motion with respect to the axis of rotation of the holding device to be described. Control of the holder is effected by a control circuit which rapidly positions the tool for commencement of the machining operation and then controls the tool more slowly during the machining operation. A step motor is used as the motion source and is controlled directly by the control circuit.