Spring coiling machine with hybrid servo motor-cam torsion contr

Details Spring coiling machine with hybrid servo motor-cam torsion contr Spring coiling machine with hybrid servo motor-cam torsion contr

1995-11-07

1997-08-19

Larson, Lowell A.

Metal deforming

By deflecting successively-presented portions of work during...

To form helical coil or tube

72145, B21F 310, B21F 304

Patent

active

056576579

ABSTRACT:
A spring coiling machine has a feed assembly with a servo motor for driving the feed rolls. Substantially all tooling including a coiling tool, a pitch tool and an auxiliary arbor are also servo motor operated with three axes of servo control including a "torsion" axis provided for the coiling tool. The auxiliary arbor has a plurality of wire forming positions and is also servo motor controlled. The "torsion" movement for the coiling tool is controlled by a servo motor-cam mechanism for accurate high speed operation with a high frequency of torsion movement of the coiling tool.

REFERENCES:
patent: 3934445 (1976-01-01), Lampietti
patent: 4026135 (1977-05-01), Yagusic et al.
patent: 4934165 (1990-06-01), Philpot et al.
patent: 5259226 (1993-11-01), Itaya
patent: 5363681 (1994-11-01), Speck et al.

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