Tube-bending machine

Details Tube-bending machine Tube-bending machine

1981-02-05

1983-04-26

Combs, Ervin M.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 32, 72150, B21D 905

Patent

active

043809170

ABSTRACT:
This invention relates to a tube-bending machine, which is so constructed that force detection means to detect a force acting in the axial direction of a mandrel under a tube-bending operation is disposed on the mandrel of tube-bending means so as to sense bending conditions such as a lubrication condition of an inner surface of a tube being bent and a mandrel position, and further that fluctuations from predetermined bending conditions, of the bending conditions during the tube-bending operation are detected and corrected.

REFERENCES:
patent: 3352136 (1967-11-01), Clarke
patent: 3670541 (1972-06-01), Peddinghaus
patent: 3798943 (1974-03-01), Benteler et al.
patent: 3899908 (1975-08-01), Somov et al.
patent: 4190887 (1980-02-01), Yoshiwara et al.

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