Positioning device for positioning workpieces, machine tool with such a positioning device, method for positioning workpieces

摘要

positioniervorrichtung for positioning workpieces, machine tool with such a positioniervorrichtung, method for positioning a workpiece;a positioniervorrichtung (1) for positioning workpieces to a machine tool bearbeitungseinrichtung has a two-stage actuators (3) for two positionierelemente (6). a drive stage (69) of the stellantriebes (3) includes a regulated motor spindelantrieb with a drive motor (65) and a spindeltrieb (48, 56).an integral part of a drive circuit (70, 71) of the stellantriebes (3) is a piston cylinder unit (26, 27), with the positionierelementen (6) both antriebsverbunden and bewegungsverbunden.by means of the drive motor spindelantriebs precursor (69), the piston cylinder unit (26, 27) of the drive circuit (70, 71) in a antriebsposition delivered, which is an intermediate of the positionierelemente (6) is assigned.in the antriebsposition delivered piston cylinder unit (26, 27) of the drive circuit (70, 71) moves the positionierelemente (6) based on the intermediate position relative to one another in a funktionsstellung, in which the positionierelemente (6) of a workpiece in the direction of one of the positionierelementen (6) defined positionierachse (11 / 1, 11 / 2) setting.;a machine tool has a positioniervorrichtung (1) of the above kind of mistake.;a method for positioning a workpiece in a machine tool with a bearbeitungseinrichtung via such a positioniervorrichtung (1).