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United States Patent | 4,400,781 |
Hotta , et al. | August 23, 1983 |
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.
Inventors: | Hotta; Shigeo (Nagoya, JP), Yamamoto; Katsumi (Takahama, JP) |
Assignee: |
Toyoda Koki Kabushiki Kaisha
(Kariya,
JP)
|
Appl. No.: | 06/228,884 |
Filed: | January 27, 1981 |
Feb 12, 1980 [JP] | 55-16460 | |||
Current U.S. Class: | 700/164 ; 318/571; 451/228; 451/5; 700/188 |
Current International Class: | B24B 17/00 (20060101); B24B 17/10 (20060101); G05B 19/18 (20060101); B24B 051/00 () |
Field of Search: | 364/474,475 51/165.71,165.79,165TP,97NC,15SP,15EC,11R 318/568,578,569,571 |
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