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:
Sep. 12, 1989
Filed:
Sep. 17, 1986
Ingo Faulstich, Ludwigsburg, DE;
Hermann Pfauter GmbH, , DE;
Abstract
The method is used for machining flanks of unhardened or hardened, spur-toothed or helical-toothed, internally toothed or externally toothed cylindrical gears by skiving. Basic rotation is produced between a tool and a workpiece. In addition, a helical motion between the tool and the workpiece is produced. The relative motion between the tool and the workpiece is executed with high accuracy, and any variations in the relative motion are corrected. The tooth number z.sub.0 of the tool, for minimizing the effect of the variations of the tool and its mounting, is fixed in such a way that, in the case of z.sub.0 .gtoreq.z.sub.2 (z.sub.2 is the tooth number of the workpiece, z.sub.0 is the tooth number of the skiving tool), the ratio i=z.sub.0 /z.sub.2, and in the case of z.sub.0 >z.sub.2, the reciprocal of the ratio 1/i=z.sub.2 /z.sub.0, result in an integral value or the ratio of two integral numbers, the amount of which is as small as possible.