Method for determining a correction value for the monitoring of a fluid bearing and machine having at least one fluid bearing

US9671210B2 · kind B2 · utility

Assignee

• Carl Zeiss Industrielle Messtechnik GmbH · DE

Inventors

• Rainer Sagemueller · Aalen, DE
• Guenter Grupp · Donzdorf, DE

Key dates

• Filing date: Jul 10, 2014
• Grant date: Jun 6, 2017
• Expiry date: Jul 9, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2370/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for ascertaining a correction value for monitoring a fluid bearing of a coordinate measuring machine or other machine tool. Also disclosed is a coordinate measuring machine having at least one fluid bearing. The machine further includes a first element and a second element which are supported against each other by means of at least one fluid bearing. In addition, a control device is provided for controlling the machine. A quantity representing a pressure in the at least one fluid bearing is ascertained as a function of a position and/or orientation of the first element relative to the second element. A correction value for a pressure in the at least one fluid bearing is determined for the position and/or orientation of the first element relative to the second element. The correction value is then stored in the control device, and subsequently used for machining or measuring a workpiece.