Support arm assembly for pipe bending machines with automatic pi

Details Support arm assembly for pipe bending machines with automatic pi Support arm assembly for pipe bending machines with automatic pi

1997-01-27

1998-06-30

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

72422, B21D 4300

Patent

active

057717354

ABSTRACT:
A support arm assembly for a pipe bending machine, including one or more linear ledges arranged along the arm; a mandrel including a piece for intercepting the ledges through a click (106) switching between a raised rest position and a lowered working position by the displacement of an eyelet, in which it can slide, having raising edges (105) against which click (106) is loaded, under the actuation of an air cylinder, under the control of means that also control the opening/closing of the pipe carrier gripper (16) of the mandrel; and angular ledge dowels with a sense cut (200) being provided on the periphery of the mandrel, cooperating with a spring-loaded locator.

REFERENCES:
patent: 3885410 (1975-05-01), Kopczynski
patent: 4331016 (1982-05-01), Benteler
patent: 4485658 (1984-12-01), Stewart

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