Workpiece positioning device for a machining center, machining center and process

摘要

A workpiece positioning device (28) for a machining center (1), a machining center (1) and a method for positioning a workpiece (12) clamped on a workpiece pallet (19) in a machining center (1) are disclosed. The Werkstückpositioniervorrichtung (28) has a tray (17) containing a horizontal shelf (18) for a workpiece pallet (19) with a workpiece clamped thereon (12) and a pivot bearing (44), the workpiece pallet (19) on a first edge (41) thereof rotatably receives. The workpiece positioning device (28) further comprises a pivoting device (53) for converting the workpiece pallet (19) from a horizontal position to a vertical position and vice versa. The pivoting device (53) has a horizontal and a vertical linear axis (23, 24) and a gripping device (31) and is adapted to take a workpiece pallet (19) at another, second edge (42) and by simultaneous method of horizontal and the vertical linear axis (23, 24) to pivot the workpiece pallet (19) around the pivot bearing (44) on a circular path (52). The pivoting is effected solely by motor-driven linear axes (23, 24), which are also provided for the transport of the workpiece pallets (19).