Method and apparatus for automatic feed of mandrel tube bender

Details Method and apparatus for automatic feed of mandrel tube bender Method and apparatus for automatic feed of mandrel tube bender

1982-07-26

1984-08-14

Combs, E. Michael

Metal deforming

By deflecting successively-presented portions of work during...

With feeding of discrete articles or orienting of work...

72150, 72307, 414 17, 414751, B21D 905

Patent

active

044649185

ABSTRACT:
A method and apparatus for automatic rear loading of mandrel type tube benders. The bender includes a base, bending head at the forward end of the base, carriage for positioning a tube with respect to the bending head, and a mandrel rod supporting on its front end near the bending head a mandrel. The improvement includes the use of two separate clamps for gripping the mandrel rod with respect to the base, one clamp being located near the rear end of the mandrel rod and the other clamp at an intermediate point on the mandrel rod spaced from the first clamp a distance at least equal to the length of the tubes to be bent. The clamps selectively grasp the mandrel rod, at least one clamp grasping the rod at any given time, to allow a tube to be loaded onto the mandrel rod while another tube is being bent.

REFERENCES:
patent: 2442325 (1948-05-01), Kitlica
patent: 2565971 (1951-08-01), Kitlica
patent: 2979103 (1961-04-01), Bowman
patent: 3273364 (1966-09-01), Pohler et al.
patent: 3280612 (1966-10-01), Schmidt
patent: 3287952 (1966-11-01), Van Harten
patent: 4311031 (1982-01-01), Schwarze
patent: 4331015 (1982-05-01), Benteler et al.
patent: 4331016 (1982-05-01), Benteler et al.
patent: 4352615 (1982-10-01), Neukomm

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