Patent · US Active

Method and apparatus for finish machining ball tracks in a nut of a ball drive

US8647175B2 · kind B2 · utility

1Cited by

16References

4Claims

0Family size

Assignee

Thielenhaus Technologies GmbH · DE

Inventors

Thomas Schmitz · Wesseling, DE
Siegfried Kay Hesse · Dresden, DE
Hans-Joachim Koerner · Rheydt, DE

Key dates

Filing date	May 17, 2011
Grant date	Feb 11, 2014
Priority date	—
Expiry date	May 5, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24B35/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A radially inwardly open raceway formed in a nut centered on a nut axis is machined by of oscillating the nut about the nut axis while pressing a tool secured in a holder radially outwardly into the raceway of the nut. The holder is moved parallel to the nut axis and oscillated about a tool axis perpendicular to the nut axis synchronously with the oscillation of the nut about the nut axis. Springs brace the tool against the holder parallel to the nut axis such that the tool can move limitedly in the holder against spring bias parallel to the tool axis.

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