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:
Nov. 11, 1986
Filed:
Oct. 17, 1984
Yuichiro Komatsu, Kariya, JP;
Toshio Maruyama, Kariya, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
A method of successively grinding a plurality of cams on a camshaft by performing a grinding cycle for each of the cams after each cam is brought into alignment with a grinding wheel through indexing movement in the axial direction thereof. The grinding cycle is performed with said camshaft being rotated and rocked respectively about its axis and a pivot axis parallel thereto and includes first to fourth steps. The substantial part of a stock removal of each cam is removed in the first step wherein the grinding wheel is infed at a rapid infeed rate as the camshaft is rotated at a slow rotational speed. The camshaft is rotated at a high rotational speed in the second step for removing from the cam a part of the stock removal which is to be cut off, but left uncut in the first step. Rotation of the camshaft at the high rotational speed is continued while the grinding wheel is infed in the third step for removing a grinding crack layer from the cam. Finally, the fourth step is carried out, wherein for finish grinding, the grinding wheel is infed against the cam rotating at a slow rotational speed.