Metal deforming – By use of tool acting during relative rotation between tool... – Tool orbiting or rotating about an axis
Patent
1975-12-02
1976-11-16
Vlachos, Leonidas
Metal deforming
By use of tool acting during relative rotation between tool...
Tool orbiting or rotating about an axis
72124, 72211, 72215, B21D 302, B21D 1704
Patent
active
039915999
ABSTRACT:
Three cylindrical rollers are rotatably mounted equidistant from the center of a hollow tool head on radii spaced 120.degree. apart. Each roller has a thin flange; the three flanges lie in a single plane to form an internal circumferential rib in a rotating tubular workpiece. The tool head has two complementary parts with two rollers in one part of the head and one roller in the other part; the two parts are joined by a hinge. A second hinge, located so the rollers are between the two hinges, connects one of the parts to a tool bar mounted in a lathe tool holder. The axes of rotation of both hinges and all three rollers are parallel. A hole exposing equal portions of the three roller flanges is located in the center of the tool head. The two hinges permit the tool head to be opened and rotated slightly downward, taking the roller flanges out of the path of the workpiece which is supported on both ends and rotated by the lathe. The parts of the tool head are then closed on the workpiece so that the flanges are applied to the workpiece and form the rib. The tool is then relocated for forming of the next rib.
REFERENCES:
patent: 1112662 (1914-10-01), Schley
patent: 2235616 (1941-03-01), Ice
patent: 2645953 (1953-07-01), Schlitters
patent: 3867824 (1975-02-01), Takagi et al.
Groh Edward F.
Lewandowski Edward F.
Rowley James P.
Carlson Dean E.
Churm Arthur A.
Hosteny Joseph N.
The United States of America as represented by the United States
Vlachos Leonidas
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