Adaptive control apparatus for a machine tool
US4787049A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | May 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/36511
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An adaptive control apparatus is provided with a load detector for detecting a load which acts on a cutting tool during a machining operation of a workpiece and plural storage areas for one cutting tool which respectively store plural data groups of load values which are sampled during respective model machining operations. In an adaptive control machining operation, a microprocessor selects one of the plural storage areas when receiving tool code data that a numerical controller reads out in accordance with a numerical control program. In the adaptive control machining operation controlled by the numerical controller in accordance with the numerical control program, the microprocessor modulates the feed rate override of the numerical controller so that the feed rate of the cutting tool is varied to make the actual machining load detected during the adaptive control machining operation follow the sampled load values which are successively read out from the selected one of the storage areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.