Verfahren und Vorrichtung zum Gruppenlochen.

摘要

A multiple piercing apparatus for piercing a workpiece (W) having a plurality of reference marks (m) defining the piercing locations. A plurality of adjustably movable piercing unit (a) cases are opposedly arranged on opposite sides of a machine bed (1). A piercing element (25), such as a twist drill or punching assembly, is mounted for movement with respect to the unit case to be aligned with a respective reference mark (m) in response to data received from a sensor, such as a camera (16) or photo-sensor (129).