Patent · US Expired

Device for preloading a guided machine part

US5129733A · kind A · utility

5Cited by

4References

16Claims

0Family size

Assignee

Carl-Zeiss-Stiftung, Heidenheim/Brenz · DE

Inventors

Eckhard Enderle · Aalen, DE
Werner Leitenberger · Schlier, DE
Helmut Muller · Bensberg, DE

Key dates

Filing date	Feb 27, 1991
Grant date	Jul 14, 1992
Priority date	—
Expiry date	Feb 27, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23Q1/5462
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention contemplates use of a suction bell to enhance the loading with which a guided machine part is gravitationally supported on its guide. In application to a machine in which the machine part is movably supported on air bearings, the suction bell applies a preload force of magnitude to optimize the stiffness of air-bearing action and to maintain an air gap of uniform capillary thickness, free of mechanical contact between the machine part and its supporting surface.

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