Numerical control machining system
US4617635A · kind A · utility
14Cited by
11References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1983 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Sep 9, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49092
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The load current of a spindle motor adapted to drive the tool of a numerical control machining apparatus or a feed motor adapted to move a machining table on which a workpiece is placed is detected during machining, the detection signal is applied to the input unit of a numerical control device to obtain the load output, and the load output is compared with an allowable value, so that the comparison signal is utilized to control the feed speed of the feed motor adapted to move the machining table of the apparatus or to output an alarm signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.