Metal deforming – By use of tool acting during relative rotation between tool... – Tool orbiting or rotating about an axis
Patent
1997-10-02
1998-10-27
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
Tool orbiting or rotating about an axis
72123, B21D 1904
Patent
active
058264540
ABSTRACT:
A device is indicated for flanging the end of a metal tube to achieve a circumferential surface extending outward at right angles from the tube. It has the form of a cylindrical housing with a flange at its open end for fastening a clamping tool which is fastened to the tube, and its other end is closed by a bottom part. The housing has a flanging attachment that is able to rotate around the longitudinal axis of the housing, and a hand-wheel which is attached to a connecting element and extends outward through the bottom part. The hand-wheel is rigidly linked to a guide part of the flanging attachment by a threaded rod which fits through a suitably threaded bore in the bottom of the housing. A pressure element of the flanging attachment is guided by a pin which also forms part of the flanging attachment. The pressure element is operationally attached to the guide part so that it is able to rotate with it around the longitudinal axis of the housing. A lever mechanism is located between the guide part and the pressure element and comprises at least two levers that are linked to each other and also to the guide part and to the pressure element, whereby a movement of the guide part relative to the pin can be converted by the lever mechanism into movement of the pressure element in the radial direction of the housing.
REFERENCES:
patent: 1396179 (1921-11-01), Foley
patent: 2840136 (1958-06-01), Bellarts
Alcatel Alsthom Compagnie Generale d'Electricite
Larson Lowell A.
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