Metal deforming – By deflecting successively-presented portions of work during... – To form helical coil or tube
Patent
1997-07-11
1999-08-17
Hail, III, Joseph J.
Metal deforming
By deflecting successively-presented portions of work during...
To form helical coil or tube
72140, 72145, 72446, B21F 3502, B21F 304, B21J 1300
Patent
active
059376856
ABSTRACT:
A method and apparatus are provided for forming the linear springs. In the apparatus three or more forming tools are arranged radially about the center of the quill for guiding the linear material are rotated within a predetermined angle about the centerline of the quill and are simultaneously advanced in the extension direction of the centerline of the quill perpendicular or substantially perpendicular to the centerline of the quill of the quill and collided against the linear material fed from the tip end portion of the quill to thereby always perform the formation of the linear spring, the apparatus being suitable for embodying this method is provided. The method is characterized by: rotating a turntable, on which the forming tools are mounted, about the centerline of the quill so that a linear material contact surface of at least one, as desired, of the forming tool is located in a direction which is suitable for the formation of the linear material; and after the rotating, advancing the forming tool, as desired, in the extension direction of the centerline through an associated one of a number of driving means, the number being more than the number of the forming tools arranged, disposed radially about the centerline of the quill outside of the turntable for forming the linear spring. It is possible to rotate the quill about the centerline of the quill.
REFERENCES:
patent: 4947670 (1990-08-01), Wu
patent: 5452598 (1995-09-01), Cheng
patent: 5732583 (1998-03-01), Itaya
Matsuoka Takeji
Okubo Hiroshi
Butler Rodney
Hail III Joseph J.
MEC Machinery Co., Ltd.
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