METHOD OF MOLDING METAL BELLOWS FOR BULGING PROCESS, AND METAL BELLOWS MOLDING APPARATUS

摘要

A pair of divisional mold members (16, 17) formed each metal mold body (15) are fixed via their respective support guide shafts (24, 25) so that the mold members can be moved in the axial direction of a tubular body, and clamp plates (18) are fitted in both side portions of the combined divisional mold members (16, 17) so that all of them are fixed unitarily to one another. The clamp plates (18) are supported on clamp plate guide shafts (22) so that the clamp plates can be moved in the axial direction of the tubular body, and each metal mold body (15) is moved as it is retained in a right-angled state with respect to the axial direction of the tubular body by the clamp plates (18). Each of a pair of divisional mold members (16, 17) and each clamp plate (18) move the guide shafts (22, 24, 25), which support each thereof, in the direction perpendicular to the axial direction of the tubular shaft, whereby each unit becomes able to be combined with and separated from another freely.