Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1999-08-26
2000-10-10
Jones, David
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
72213, 723896, B21D 708
Patent
active
061289426
ABSTRACT:
A bending machine for bending and straightening tubing and plate metal includes a base, a bed mounted to the base, a sliding panel mounted to the bed, and a bending apparatus mounted to the sliding panel. The bending apparatus further includes a bending apparatus frame, a mounting arm, and hydraulic systems for moving the mounting arm and the bending apparatus frame. A limiting die is mountable to the bending apparatus frame and a bending die is mountable to the mounting arm of the bending apparatus. The mounting arm is adjustable relative to the bending apparatus frame to secure an object to be bent between the mounting die and the limiting die. The bending apparatus frame is adjustable relative to the sliding panel for further securing the object to be bent between the sliding panel and the bending apparatus frame. An adjustable pair of stop pegs are positionable to extend outwardly from the bed such that the sliding panel is passable through the stop pegs. The object being bent is secured relative to the sliding panel such that opposite ends of the object contact the stop pegs as the sliding panel passes through the stop pegs whereby the object is bent around the mounting die. In a most preferred embodiment, the mounting arm and bending frame apparatus are designed for positioning the limiting die and mounting die on either of two opposing sides of the bending apparatus frame. Additionally, an adjustable control arm is provided for controlling the various hydraulic systems.
REFERENCES:
patent: 4254651 (1981-03-01), Kelly
patent: 4790168 (1988-12-01), Vonthien
patent: 5528921 (1996-06-01), Herman
patent: 5615572 (1997-04-01), Johnson et al.
patent: 5661994 (1997-09-01), Sundquist
patent: 5761950 (1998-06-01), Chiu
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