Tube bending machine

Details Tube bending machine Tube bending machine

1981-12-15

1984-05-22

Husar, Francis S.

Metal deforming

By use of roller or roller-like tool-element

Comprising tool movable relative to stationary work-portion...

72369, 72388, B21D 704, B21D 1106

Patent

active

044493878

ABSTRACT:
A tube bending machine with rotary arms carrying a bending moment roller and a bending fulcrum roller has arm shafts mounted for axial movement. The arms are rotated for the tube bending action, whereby the bend so made in the tube lies in a predetermined non-planar arc. The arm shafts are turned by a pinion engaged by a rack and are moved axially by suitable pins engaged in cam slots with the rack and the cam slots all being moved simultaneously. In order to retain the tube in proper location or position during the trusts of non-planar arc bending there may be included more than one roller.

REFERENCES:
patent: 2413523 (1946-12-01), Shaw, Jr.
patent: 2747645 (1956-05-01), Nichols et al.

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