Gear hobbing machines

Details Gear hobbing machines Gear hobbing machines

1976-07-07

1978-04-04

Meister, J. M.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

318603, B23F 522

Patent

active

040820319

ABSTRACT:
In a gear hobbing machine, the combination of a support, a rotatable hob, a slide mounting the hob for axial shifting on the support, a stepping motor operatively connected to the slide, electronic means operative at the conclusion of a hobbing cycle to apply drive pulses to the motor and thereby to cause the motor to impart a predetermined axial movement to the slide in response to each pulse, a subtractive counter for counting the pulses applied to the motor and means for stopping the motor when the count in the counter is reduced to zero.

REFERENCES:
patent: 2483810 (1949-10-01), Cotta
patent: 2484856 (1949-10-01), Purvin
patent: 3414785 (1968-12-01), Orahood et al.
patent: 3566239 (1971-02-01), Taniguchi
patent: 3610299 (1971-10-01), Jureit
patent: 3748962 (1973-07-01), Hilbert
patent: 3818303 (1974-06-01), Rossel

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