Numerical control method and numerical control device of machine tool
US9477218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2011 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Aug 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49182
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A numerical control device which controls a feed axis of a machine tool has a storage unit which divides a range of movement of the feed axis into a plurality of regions and stores a plurality of control parameters corresponding to the divided plurality of regions in advance, a position detection unit which detects a position of a feed axis at the time of machining a workpiece, a parameter selection unit which reads out control parameters corresponding to a divided region to which the detected feed axis position at the time of machining a workpiece belongs, and a servo control unit which controls the feed axis using the read control parameters. Due to this, it is possible to provide a numerical control method of a machine tool which realizes stable machining precision without regard as to the feed axis position and a numerical control device which conducts that method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.