MACHINE FOR BENDING ROLLED SHEETS Russian patent published in 1994 - IPC

FIELD: metal pressure forming. SUBSTANCE: machine for bending rolled sheet material, having stationary, clamping and bending cross bars, is provided by an output and input stations, having tables in the form of jointly connected one with another stationary and movable beams, whose one side is joined respectively with the stationary and with the bending cross bars of the machine, and whose other side is joined respectively with the stationary support and a damper; clamping devices and mechanisms for their motion. At least the output station is provided by autonomous movable tail spindle. A joint assembly of the stationary and the movable beams is mounted coaxially with a joint assembly for rotating the bending cross bar. The clamping devices and mechanisms for their motion are mounted on the stationary beams of the mounting tables. When a length of the blank is less, than a length of a working zone of the former, a bending operation is being performed over one rocking motion of the bending cross bar and the movable beams. The blanks with length, being more, than the length of the working zone of the former are being bent over several longitudinal movements of the blank to a side of the output station after each rocking motion of the bending cross bar and the movable beams. When the length of the blank is more, than a length of the mounting tables, the autonomous retractable tail spindles are being used. EFFECT: enhanced structure of the machine. 3 cl, 3 dwg