Metal deforming – By plural tool-couples
Patent
1992-06-08
1994-08-09
Crane, Daniel C.
Metal deforming
By plural tool-couples
72447, 72217, 29464, B21D 716, B21D 700
Patent
active
053355296
ABSTRACT:
A tube bending fixture having a plurality of tube bending tools, a pedestal for each tube bending tool, a grid plate for supporting each pedestal, and a grid plate support for supporting the grid plates in a predetermined arrangement. The fixture is built from a simulation program of tool selection, tool location and bending sequence. The simulation program is entered into a computer for viewing to insure that the tools are properly selected and properly located to permit operation in the desired sequence without interference. The computer will output a list of the tools needed and a list of coordinates to establish tool location. The bending tools have clamp rolls which are relatively movable between open and closed positions, and when closed define an arcuate groove. A bending roll is provided for bending a tube around the groove.
REFERENCES:
patent: 2366012 (1944-12-01), Draper
patent: 3440859 (1969-04-01), Holtzhauer
patent: 4901990 (1990-02-01), Frechette
patent: 4930333 (1990-06-01), Marbury
patent: 4972698 (1990-11-01), Ross
"Quick Die Change System" from Brochure by Hilma Corporation of America, Brookfield, Conn., pp. 1-12, Dec., 1987.
Crowdus Robert A.
Knirk Gary L.
Silverson John K.
Bundy Corporation
Crane Daniel C.
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