Machine having an air bearing and method for operating such a machine
US8590875B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2012 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23Q1/38
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine has a frame structure for moving a machine head in one or more spatial directions. The frame structure comprises an actuator and an air bearing for moving the head. The machine also comprises a compressed air feed connected to the air bearing for providing a compressed air flow. A restrictor defines the compressed air flow to the air bearing. The machine has a first operating state, in which a high compressed air flow is defined and in which the actuator can be actuated. The machine has a second operating state, in which a compressed air flow lower than the high compressed air flow is defined. In the second operating state, the actuator is secured against actuation from a closed-loop position controller, while the closed-loop position controller is maintained in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.