Position control system for a closed loop type numerical-controlled machine tool
US4338659A · kind A · utility
28Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1979 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | Dec 12, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/42162
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a closed loop type numerical-controlled machine tool in which position control of a mechanical moving part is performed in accordance with a position error variable obtained by making a comparison between commanded positional information and detected positional information from a position detector mounted on the mechanical moving part, deteriorated performance resulting from the inclusion of the mechanical moving part in the closed loop is improved by using correcting means incorporated in the numerical-controlled machine tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.