Machine for forming helicoidal springs

Details Machine for forming helicoidal springs Machine for forming helicoidal springs

1977-07-08

1979-01-02

Combs, E. M.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 22, 72 37, 72138, 72142, B21F 304

Patent

active

041320948

ABSTRACT:
The present invention relates to the manufacture of helicoidal springs in which there is associated with the mandrel for rolling of the spring a rotating cylinder carrying a helicoidal trace corresponding to the helix of the spring to be manufactured. A moving carriage which moves the mandrel longitudinally supports a scanner of the photoelectric cell type directed toward the rotating cylinder which controls the displacement of the movable carriage. Control devices supply a memory with the comparative values which provide for the future automatic control of the machine. The invention therefore relates to automatic machines to form helicoidal springs.

REFERENCES:
patent: 2094204 (1937-09-01), Carter et al.
patent: 2165411 (1939-07-01), Peyton
patent: 3906766 (1975-09-01), Sato

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