CURVATURE RETAINING DEVICE FOR PLATE-SHAPED WORKPIECE, CURVATURE RETAINING METHOD FOR PLATE-SHAPED WORKPIECE, AND CURVATURE FORMING METHOD FOR PLATE-SHAPED WORKPIECE

摘要

PROBLEM TO BE SOLVED: To provide a plate-like workpiece curve holding apparatus of high versatility capable of freely imparting curved shape to a plate-like workpiece with simple and high configuration without using a mold member and applicable also to the integrally stiffened skin.;SOLUTION: The curve holding apparatus 1 includes two support points 25a that can abut on one surface of the plate-like workpiece W; at least one pressurizing point 40a that can abut on the other surface of the plate-like workpiece W in a position placed between the support points 25a; and advance/retreat driving means (support units 23 and pressurizing units 33) for advancing/retreating at least one of the support points 25a and pressurizing point 40a toward the other. It is preferable that the two support points 25a abut on the one surface of the plate-like workpiece W at a first space Ls, that two pressurizing points 40a abut on the other surface of the plate-like workpiece W at a second space Lp narrower than the first space Ls and that a center point of the first space Ls coincides with a center point of the second space Lp.;COPYRIGHT: (C)2013,JPO&INPIT