Method of bending bars

Details Method of bending bars Method of bending bars

1998-04-30

1999-07-27

Crane, Daniel C.

Metal deforming

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

Plural or complex apparatus

72388, 72217, B21D 7022, B21D 1112

Patent

active

059271329

ABSTRACT:
A method of bending a bar into a sinusoidal configuration. The method employs a bending machine comprising a table having a fixed central post defining a slot for receipt of the bar, a turntable positioned rotatably around the post, a pair of bending pins on the turntable, and a pair of abutment pins on the table radially outwardly of the turntable. With the front end of the bar clamped fixedly and the bending machine positioned at the rear end of the bar, the turntable is rotated to place a compound bend in the bar utilizing a first bending pin and a first abutment pin whereafter the bending machine is moved forwardly along the bar to a first indexed location at which the turntable is rotated in an opposite direction to place a reverse compound bend in the bar utilizing the second bending pin and the second abutment pin. The bending machine is moved successively along the bar to successive indexed locations and a compound bend is placed in the bar at each indexed location with each compound bend comprising a mirror image of the preceding compound bend so that a sinusoidal configuration is imparted to the bar.

REFERENCES:
patent: 1795188 (1931-03-01), Wagenbach
patent: 2055955 (1936-09-01), Wagenbach
patent: 3803893 (1974-04-01), Peddinghaus
patent: 3857271 (1974-12-01), Gott
patent: 4702097 (1987-10-01), Zahlaus
patent: 5144829 (1992-09-01), Fabro et al.
patent: 5375447 (1994-12-01), Del Fabro et al.
patent: 5537852 (1996-07-01), Del Fabro et al.
Schnell Robomaster Brochure, 10 pages.

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