Patent ID: 7234332

Claim:
Bending machine, comprising a machine frame, an upper beam and a lower beam, both of which are held on the machine frame and can move relative to one another, a bending beam, which is held on the machine frame and is moveable with respect to the machine frame, the bending beam being moveable relative to the upper beam and lower beam, the bending beam having a bending beam carrier and a bending beam tool that is supported on the bending beam carrier via a curving device actuable by a control unit, the curving device being able to bend the bending beam tool relative to the bending beam carrier in a direction opposite to the deflection of the bending beam carrier which occurs as a reaction of bending forces, the curving device being provided with a setting device operable during a bending operation, the control unit being adapted to actuate the setting device even during a bending operation, at least one sensor being provided, which is associated with the control unit and can be used by the control unit to determine a setting of the curving device by the setting device, and for a defined bending operation the control unit being adapted to determine at least one setting parameter for the curving device for which the bending beam tool is oriented substantially without any deflection when this bending operation has ended.