Nc machine tool, and method of controlling nc machine tool
US6566835B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2001 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Jun 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/43106
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention relates to a method of controlling a numerically controlled machine tool having a plurality of feed shafts. Also, the present invention relates to a numerically controlled machine tool. According to the present invention, it is possible to solve conventional problems so as to realize highly accurate machining even when a moving body of the machine is moved at high speed. As the means for solving the problems, an appropriate command corresponding to a frictional force of the feed mechanism of the numerically controlled machine tool and also corresponding to a change in the weight of a workpiece is estimated by calculation, and the thus estimated command is outputted into the drive unit of the feed shaft motor so as to drive the feed shaft motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.