Numerical controller that controls an output value in feedback control
US10261492B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | May 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/43158
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A numerical controller, which is capable of controlling an output value without causing delay or the like in feedback control, includes an instruction program analysis unit configured to analyze a program instruction and generate instruction data instructing movement of the axis, and a speed computation unit configured to start speed computation processing to compute a feeding speed of the axis by the instruction data or an override for the feeding speed by feedback control such that the spindle load value becomes constant. The speed computation unit is configured to update a feature amount intended for elimination of deviation between a desired value and a feedback value in the feedback control when another override that is different than the override that has been computed is output. The feature amount is updated to a value obtained by back calculation from the other override that is to be output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.