The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 1983
Filed:
Jan. 27, 1981
Shigeo Hotta, Nagoya, JP;
Katsumi Yamamoto, Takahama, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
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.