Boots – shoes – and leggings
Patent
1981-01-27
1983-08-23
Chin, Gary
Boots, shoes, and leggings
51 97NC, 5116571, 318571, B24B 5100
Patent
active
044007817
ABSTRACT:
A numerical controller for a cam grinding machine, which has a cam drive unit and a grinding wheel drive unit, includes a memory for storing profile data of a cam corresponding to angular positions thereof. A data processor is provided for reading out the profile data from the memory so as to generate a rotational speed command indicating a rotational speed of the cam and a feed rate command indicating a feed rate of the grinding wheel at every unit angle rotation of the cam, wherein the rotational speed command and the feed rate command are so decided as to reduce the rotational speed of the cam and the feed rate of the grinding wheel while the side portions of the cam are ground. A pulse distribution circuit is connected to the data processor and responsive to the rotational speed command and the feed rate command therefrom for distributing pulses to the cam drive unit and the grinding wheel drive unit.
REFERENCES:
patent: 3653854 (1972-04-01), Asano
patent: 4005552 (1977-02-01), Hoglund et al.
patent: 4027245 (1977-05-01), Bourrat et al.
patent: 4031445 (1977-06-01), Schmermund
patent: 4122634 (1978-10-01), Nishimura et al.
patent: 4214309 (1980-07-01), Koide et al.
patent: 4293913 (1981-10-01), Nishimura et al.
Hotta Shigeo
Yamamoto Katsumi
Chin Gary
Toyoda Koki Kabushiki Kaisha
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