Numerical control apparatus
US5485069A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Oct 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/43102
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A numerical control apparatus which reduces a cycle time by executing the movement command of a next block without temporarily stopping the movement of a workpiece even if a skip signal is input. Upon receiving the skip signal SS output from a sensing device, a skip signal sensing device determines the present position of the workpiece, stores the position in a memory device and outputs a skip completion signal AS. Then, an acceleration/deceleration distribution device carries out pulse interpolation of a present block and outputs a distribution completion signal ES on the completion of the movement. Further, a preprocessing distribution device, having received the skip completion signal AS, determines an amount of movement of a next block from the present position of the workpiece and preprocesses the next block of the machining program. On receiving the distribution completion signal ES output from the acceleration/deceleration distribution device, the preprocessing distribution device outputs an interpolation pulse IP2 and moves the workpiece without interruption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.