Patent ID: 6640606
Filing Date: 2003-11-04
Classification: B21F

Abstract:
All-purposes pressing bending-machine, for pressing-bending a material being fed to said machine along a feeding direction, wherein said machine comprises an upstream press having a press driving motor, and a plurality of downstream bending tool supporting slides, coupled to a supporting plate, and roller feeding means for feeding said material to be bent, each of said downstream bending tool supporting slides being driven independently from the other slides by a corresponding geared-motor unit, each of said units being coupled to electronic control means, each of said downstream bending tool supporting slides being fixedly coupled to a single pair of cams for translating a rotary motion of each said geared motor units into a translation motion of each of said slides, each said cam pair including two all-purposes cams, offset from one another by 180Â°, each said geared-motor unit being an epicycloidal geared-motor unit, said machine further comprising an independently driven programmable central core coupled to a center of said supporting plate by a coupling flange and longitudinally driven with respect to said supporting plate by a recirculating ball screw-nut assembly for ejecting a workpiece or for sequentially driving a bending counter-abutment core.