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US 6,672,123 B2Granted
System for cold-forming a flange
AssigneeSMS Eumuco GmbH
InventorsWerner Sczesny, Frank Siewert, Jürgen Bergmann
Life of this patent
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Abstract
A flange is formed on a workpiece by first mounting the workpiece in an inner holder shiftable along about a main axis and securing the inner holder against rotation about the main axis. A roller is rotated about the main axis adjacent the inner holder. Then the inner holder and workpiece are displaced axially to press the workpiece axially against the roller and deform the workpiece and form a flange thereon. This is done without heating the workpiece, that is in a cold-forming operation.
Claims9
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.
6 more elements
Dependencies are inferred from the claim text.