Abstract
A method for gripping and moving worked pieces obtained by cutting and/or punching at least one sheet metal and arranged on a work surface includes positioning a gripping assembly at a piece to be picked up and at the same time positioning a sensor device by moving it along a first direction in a first position in which the sensor device is aligned with a projection of a peripheral edge of the piece along a second direction orthogonal to first direction, and grasping and lifting the piece at a defined height with respect to the work surface by the gripping assembly. The method also includes activating the sensor device and moving it to a second position to scan a settled portion of work surface that is below the lifted piece in order to detect a gap or a residual connection between lifted piece and the sheet metal.