Patent ID: 9339860
Filing Date: 2016-05-17
CPC Classification: B21D

Claim Text:
1. A production system, for the free-form bending of workpieces, the production system comprising: a bending press comprising: at least one bending tool, which is a one part unit, comprising: a manipulator with gripping tongs having two gripping fingers, wherein the two gripping fingers have clamping surfaces on the side facing the workpiece to be produced to enable the workpiece to be produced to be gripped and held, at least one recess disposed in the tool arm of the bending tool for manipulating the bending tool, which recess extends in a longitudinal direction of the bending tool all the way from a first end wall to a second end wall of said end walls and which recess also pierces through said end walls, wherein additional contact surfaces are provided on ends of the gripping fingers respectively on sides of the clamping surfaces facing away from one another, the recess has stop regions spaced at a distance apart from one another and the ends of the gripping fingers are inserted in the recess in order to produce a clamping hold of the bending tool wherein the recess is in a dovetail shape as taken along a cross-section; the contact surfaces of the gripping fingers are pressed against the stop regions in a direction opposite the clamping force for holding the workpieces to be produced.