Global offset compensation for a CNC machine
US8676373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Feb 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/303752
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for offsetting a part on a CNC machine comprises clamping a part to a fixture on a table for the CNC machine and machining a plurality of features and surfaces on the part. A plurality of global offsets are calculated for the fixture and the table based on location data of the plurality of features and surfaces. An actual part position on a global coordinate system for the CNC machine is determined by translating the fixture and the table by each the plurality of global offsets to the coordinate system. The actual part position is compensated to a nominal part position for each of the controllable axes of the CNC machine and a controller is programmed with a global offset compensation based upon the calculated offset for each controllable axis of the CNC machine to adjust each of the controllable axes to the actual part position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.