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:
Oct. 16, 2001
Filed:
Jan. 04, 2000
Walter Wirz, Pfaffikon, CH;
Reishauer AG, Wallisellen, CH;
Abstract
In a first step, the grinding worm profile is dressed according to the requirements of the workpiece that is to be machined. In a second step, the thereby shaped grinding worm, which has been slightly deformed by the effects of the centrifugal force, is measured at operating speed. In a third step, the measured values are converted into control data for a correcting, redressing process of the grinding worm flanks. Finally in a fourth step, the grinding worm flanks are redressed in such a manner that form errors, which are caused by various influences during grinding, are used as correction factors in the machining of the worm profile. The measuring of the grinding worm flanks may be performed directly without contact by means of a distance sensor or indirectly, whereby a sample toothed wheel is ground and this wheel is then measured by means of a tooth-flank measuring machine. The described process makes possible a highly precise tooth-flank grinding process at high grinding worm speed and thereby cost-effective machining is achieved.