Pipe bending machine for shaping sheet metal plates into pipes, has mold segments which are adjustable with shape-defining surface in setting positions in normal plane lying in curve to the pipe axis in accordance with curved contour

摘要

The pipe bending machine has a base tool (10) and a press ram (21) having a press unit (20). The base tool for setting the curvature contour, comprises a segment unit (12) with four mold segments (121,122,123,124) which are parallel to each other in the longitudinal direction of the manufactured pipe. The mold segments are adjustable with the shape-defining surface in the setting positions in a normal plane lying in a curve to the pipe axis in accordance with the curved contour. An independent claim is included for method for method for molding metal sheet into pipe.