Programmgesteuerte Maschine zur mehrachsigen Werkstückbearbeitung

摘要

The invention relates to a moving gantry machine having uprights that are movable relative to each other. The uprights are interconnected by a cross-member made up of two cross-member elements suitable for being moved relative to each other in the limit of a given maximum offset DELTA in the displacement direction of the uprights. The displacement of the uprights is controlled by respective independent drive systems X1 and X2 under numerical control within the limit of said offset. A third drive system X3 is provided for displacement between the cross-member elements and is under numerical control with the condition the displacement distance of drive system X1+the displacement distance of drive system X3=the displacement distance of drive system X2.