Patent · US Expired

Apparatus for manufacturing and machining gears

US4630404A · kind A · utility

8Cited by

7References

4Claims

0Family size

Assignee

Carl Hurth Maschinen- und Zahnradfabrik GmbH & Co. · DE

Inventors

Manfred Erhardt · Puchheim, DE
Herbert Loos · Dorfen, DE

Key dates

Filing date	Oct 25, 1984
Grant date	Dec 23, 1986
Priority date	—
Expiry date	Oct 25, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T409/10795
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An apparatus for manufacturing or machining externally toothed gears using a hyperboloidally or similarly formed, internally or externally toothed tool with abrasive tooth flanks. The tool and workpiece roll on one another about respective axes which cross at a distance. The tool has a sufficient axial dimension so that it is in engagement with the workpiece teeth from one side surface to the other of the workpiece. The workpiece and tool are coupled with guide wheel pairs. Each guide wheel pair runs with potential for backlash, but the overall gearing is such that no such backlash can occur.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.