METHOD AND APPARATUS FOR ROLLING BLADES OF SHEET BLANKS Russian patent published in 1995 - IPC

FIELD: metal pressure forming. SUBSTANCE: method of rolling blades of sheet blanks comprises steps of setting fluctuations of linear dimensions of a blank from nominal dimensions, and according to these values correcting a position of the blank relative to rotary levers, carrying gages for plastic deformation of the blank, the levers are mounted in a frame; before the correction step determining a necessary rolling effort in order to set an interaxial spacing of the levers, being decreased by a value of an elastic deformation of the frame and of the rotary levers with subsequent correlating of it by increase or decrease. At these operations a thickness of the blank is respectively less or more, than its nominal value by the preset fluctuation value. Apparatus for realizing the method includes a pressure member with two rotary levers and gages for shaping the blank, being jointly mounted in the frame by their end portions. The gages are mounted one opposite to another on the rotary levers in a zone of the pressure member being in form of a bracket, providing a change of the interaxial spacing of the levers with use of a wedge pair, arranged behind one of cylindrical supports inside of a through cavity of a closed O-shaped power frame. EFFECT: enhanced efficiency of the method with use of the enhanced-structure apparatus. 3 cl, 5 dwg