Apparatus for forming end portion of pipe

Details Apparatus for forming end portion of pipe Apparatus for forming end portion of pipe

1992-05-13

1994-03-08

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

Tool orbiting or rotating about an axis

B21D 4104

Patent

active

052917690

ABSTRACT:
A plurality of profile rolls which are revolving are radially inwardly pressed against the peripheral surface of an end portion of a pipe to be formed so that a suitable profile is plastically formed on the end portion of the pipe. Each of the profile rolls is rotatably carried by a shaft at the distal end of a swing assembly whose proximal end is pivotably mounted to a pivot shaft on a rotary assembly which is rotatable. A cam follower on the distal end shaft of each swing assembly is forced by a cam laterally so that the rotary assemblies are rotated, resulting in radially inward displacement of the profile roll. Thus, the apparatus is compact in size, easily operable at a working site and reliable in operation.

REFERENCES:
patent: 3260089 (1966-07-01), Hazelton et al.
patent: 3851515 (1974-12-01), Hautau
patent: 4143535 (1979-03-01), Bouman
patent: 4771625 (1988-09-01), Watanabe et al.

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