Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Patent
1978-05-11
1979-12-11
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
318571, 409 12, 409 15, G05B 1928
Patent
active
041785371
ABSTRACT:
The present invention relates to a method and apparatus for the production of an additional rotational motion of a helically toothed gear workpiece in an electronically, positively controlled gear processing machine operating according to the hobbing method which has separate rotating drives for workpiece and tool. In this process, a series of impulses are supplied to a controller. These impulses are compared to each other for the production of a control signal for the readjustment of the workpiece drive. The series of impulses are dependent upon the rate of rotation of each of the drives. An additional signal is supplied which is derived from the longitudinal advance of the workpiece in relation to the tool.
REFERENCES:
patent: 4066944 (1978-01-01), Leenhouts
patent: 4082031 (1978-04-01), Hodgson et al.
patent: 4107592 (1978-08-01), Bayer
patent: 4136302 (1979-01-01), Tlaker et al.
Dobeck B.
Reishauer AG
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