Patent ID: 6672123
Filing Date: 2004-01-06
Classification: B21D,B21J,B21K

Abstract:
An apparatus for forming a flange on a workpiece, the apparatus comprising:a frame; an inner holder shiftable on the frame along a main axis and adapted to hold the workpiece; a roller rotatable about the main axis on the frame adjacent the inner holder; a traverse axially displaceable on the frame; a feed shaft fixed axially to the traverse and displaceable into and out of contact with an inner end of the workpiece in the inner holder; means for pivoting the feed shaft between a position aligned with the main axis and a position offset from the main axis, whereby in the offset position a fresh workpiece can be fitted between the feed shaft and the inner holder; actuator means braced between the traverse and the frame for axially displacing the feed shaft in its aligned position against an inner end of the workpiece in the inner holder; and means for displacing the inner holder and workpiece axially relative to the frame while securing the inner holder against rotation to press the workpiece axially against the roller, deform the workpiece, and form a flange on the workpiece.