Spindle positioning apparatus
US4800325A · kind A · utility
19Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1987 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | Jan 14, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/351
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A spindle positioning apparatus for positioning the spindle of a machine tool, for example, includes an absolute angle detector such as a resolver operatively coupled to a spindle motor which drives the spindle, and an absolute position detector such as a resolver operatively coupled to the spindle. A position control processing system derives a positional error from detected signals from the absolute angle detector and the absolute position detector and a target position command signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.