BENDING PRESS WITH BACK GAUGE DEVICE AND METHOD FOR OPERATING A BENDING PRESS HAVING A BACK GAUGE DEVICE

摘要

The invention relates to a bending press (1) and to a method for operating such a bending press, comprising a control unit (17) and a stop device (16) for positioning a workpiece (3) for bending between a first bending tool (12) and a second bending tool (11) that can be adjusted relative to the first bending tool, wherein at least one stop finger (19) having a stop surface (20) can perform a position-controlled approaching movement (39) in the direction of a vertical bending plane (22) into a stop position (21) by means of a drive assembly (23) having at least one driven CNC axis (24). According to the invention, the control unit (17) activates a retraction drive (42), which effects an immediate retraction movement (41) of the stop finger (19) or at least of the end section (42) of the stop finger (19) closest to the bending plane (22) away from the bending plane (22) if an obstacle (40) is detected in the movement path of the stop finger (19) by means of a sensor assembly (38) comprised by the control unit (17) during the approaching movement (39) before the stop position (21) is reached.