Geometrical instruments – Area integrators – Electrical
Patent
1980-09-15
1982-04-06
Little, Willis
Geometrical instruments
Area integrators
Electrical
G01B 728
Patent
active
043228895
ABSTRACT:
A testing apparatus for involute and helical gear teeth comprises a rotatable chucking device for the test piece, and a feeler device containing a feeler which can be moved along the tooth flanks of the test piece. A respective drive serves for driving the chucking device and the feeler device. A regulation device is provided for at least one of these drives, and a mechanical transmission arrangement is provided between the chucking device and the feeler device. A displacement pickup or transducer is arranged between two elements of the transmission arrangement and serves to measure the relative movement of both such transmission elements. An electrical circuit serves to infeed the measuring signals of the displacement pickup or transducer to the regulation device and such signals are superimposed upon the measuring signals of the feeler device. The displacement pickup is bridged by an elastically deformable intermediate element which interconnects both of the transmission elements with one another in both of their direction of movements and is sufficiently powerfully or sturdily designed in order to transmit the greatest moment, exerted by the drive of the feeler device at one of the aforementioned transmission elements, to the other transmission element.
REFERENCES:
patent: 2778119 (1957-01-01), Jumisco
patent: 2895227 (1959-07-01), Wagner et al.
patent: 3936946 (1976-02-01), Ruffner et al.
patent: 4182045 (1980-01-01), Bosch et al.
Article of G. Dasch and W. Krieg, appearing in publication "Feingeratetechnik", 14 Jg, vol. 11, 1965.
Publication Appearing in Textbook Entitled "Kinematik/Getriebelhre", of H. J. Knab.
Kleeman Werner W.
Little Willis
Maag Gear-Wheel & Machine Co. Ltd.
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