Computer implemented go/no go gauging system
US4754417A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Sep 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An inspection system for determining if the measured features within a measured pattern of features on a mechanical component are within specified tolerances by repositioning a representation of the dimensioned features relative to the corresponding measured pattern of features within the coordinate system and by determining whether each measured feature is within the tolerance zone associated with the corresponding dimensioned feature. To accomplish this purpose, a data processor is provided for simulating the relative positions of the measured and dimensioned pattern of features and for moving in incremental steps the dimensional pattern relative to the measured pattern within a predetermined coordinate system. The directions of movement for the incremental steps are chosen by the data processor by simulating restoring forces between corresponding features of the measured and dimensioned patterns. In one mode of operation, these restoring forces are simulated only for those measured features that are outside of the tolerance zone of the corresponding dimensioned features and additional trapping forces are simulated between corresponding features of the measured pattern and the to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.