WERKZEUGMASCHINE MIT EINEM DREHTISCH UND DREHBAREN HALTEEINRICHTUNGEN

摘要

So that a machine tool with a machine frame, a rotating table rotatably mounted on the machine frame about a centre axis, machining stations around the rotating table, at least one workholder rotatably mounted about a rotational axis on the rotating table, and a rotary drive can be improved in such a way that rotation of the workholder through any small or any large angles is possible during the rotation of the rotating table from machining station to machining station, it is proposed that the rotary drive comprise a first and a second cam held in a stationary position on the machine frame and also a first and a second cam element mounted on the rotating table and moving along the cam during rotation of the rotating table, that in each case the first cam lie in a first area and the second cam lie in a second area, and that the first and the second cam elements be coupled for the rotation of the workholder and that they hold the latter in a clearly defined rotary position in each of their positions along the cams. ……