Numerical control system for machine tools
US4118771A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Mar 28, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/42256
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A numerical control system for machining centers, having a RAM and two groups of peripheral units, comprises two proessors interconnected by means of a common signal bus and adapted to operate simultaneously sharing access automatically to the RAM and to the peripheral units. One of the two processors is specialized for executing the computations relating to the interpolation of the path of the center of the tool with respect to the workpiece to be machined, while the second processor is specialized in control of the said peripherals. One group of peripherals comprises input and output means for data and programs and another group comprises a series of units for measuring and controlling the movement of the said tool and the said workpiece. The said processors are connected to the said memory and to the said input and output means by means of one signal bus, the measuring and control units are interconnected by means of a second signal bus connected to the first bus through a bidirectional interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.