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. 10, 1978
Filed:
Feb. 09, 1977
Carl Hurth Maschinen- und Zahnradfabrik, Munich, DE;
Abstract
A method for the precision working of gears, particularly by a gear shaving process. The method involves the step of changing the direction of rotation between the workpiece and the tool approximately starting with half of the advance path and the smallest distance between the axes. The optimum condition occurs when the direction of rotation is changed prior to reaching the smallest distance between the axes and the advance is directed at a right angle with respect to the axis of the workpiece or tool. The tool is rotatably supported on a spindle as is the workpiece. The workpiece is driven relative to the tool to advance same relative to the tool. Control devices are provided for controlling the movement of the workpiece relative to the tool. The tool has grooves which extend from the addendum to the dedendum and form cutting edges and the flanks of the teeth have concaved surfaces.