Metal deforming – By deflecting successively-presented portions of work during... – To form helical coil or tube
Patent
1997-05-23
1999-03-30
Hail, III, Joseph J.
Metal deforming
By deflecting successively-presented portions of work during...
To form helical coil or tube
72142, 72140, 72135, B21F 304, B21F 302
Patent
active
058874712
ABSTRACT:
A spring manufacturing apparatus in which the conventional cumbersome process of forming the front end of a quill in accordance with the shape of a desired spring is omitted, and one quill can be used in common for formation of springs having any shapes. A wire is fed out from a wire guide constituted by right and left members, two members symmetric with each other and having inclined surfaces. Tools that are radially arranged to be slidable toward a spring forming space and used for bending, curving, or cutting the wire are caused to abut against the wire to bend or curve it, thereby forming a spring. The spring manufacturing apparatus includes a rotary guide unit, a guide driving motor, tool driving motors, and a CPU. The rotary wire guide unit supports the wire guide and is rotatable about a wire feedout hole of the guide as the center. The guide driving motor transmits a driving force to the rotary wire guide unit. The tool driving motors slide the tools. The CPU controls the guide driving motor and the tool driving motors at predetermined timings. The CPU changes the position of the spring forming space near the front end of the guide by the guide driving motor in accordance with the shape of the spring.
REFERENCES:
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"Dictionary of Metal Material Technical Term With Explanatory Diagram", by Nikkan Kogyo Shinbun Sha, Nov. 20, 1988.
Handbuch Fedrn, Verlag Technik Berlin, 1988, pp. 60-61, Fig. 3.2.
Butler Rodna
Hail III Joseph J.
Kabushiki Kaisha Itaya Seisaku Sho
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