Patent ID: 6324882
Filing Date: 2001-12-04
Classification: B21D

Abstract:
A bending machine for flat material, comprising:a machine frame,lower and upper beams arranged on the machine frame, said lower beam having a lower clamping tool and said upper beam having an upper clamping tool, wherein flat material to be bent is fixable in a clamping plane with said beams,a bending tool having a bending nose with a curved pressure surface for acting upon one side of the flat material,a bending tool moving device associated with one of the beams for moving a bending tool carrier carrying said bending tool for bending the flat material about a bending edge relative to the clamping plane into a plurality of bending positions said bending nose being fixed relative to said bending tool carrier during a bending operation,said bending tool moving device comprising a mechanical path guide guiding said bending tool carrier for moving the bending tool between a starting bending position and an end bending position on a path about the respective bending edge, said path being predetermined in a defined manner such that the curved pressure surface and a side of the flat material acted upon move relative to one another via an essentially slide-free rolling on one another, and said mechanical path guide being arranged on at least one of the respective beam and the respective carrier.