Numerical controller
US7274165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2006 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Apr 25, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/42248
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A numerical controller capable of mitigating mechanical shock caused by tool compensation while a machine tool is operated according to table data. X- and Z-axis path tables Tx, Tz store X- and Z-axis positions corresponding to reference positions (time or spindle position). A tool compensation table Tt stores X- and Z-axis compensation amounts (tool compensation numbers) associated with the respective reference positions. At every predetermined period, X- and Z-axis path table interpolators read command positions from the path tables Tx, Tz based on the reference position, and obtain command motion amounts by interpolation. X- and Z-axis tool interpolators read compensation amounts from the tool compensation table Tt based on the reference position, and obtain compensation motion amounts by interpolation. Adders add up the command motion amounts and the respective compensation motion amounts to drive respective motors. The tool compensation amounts are gradually varied, whereby mechanical shock does not occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.