Self-calibration technique for on-machine spindle-mounted vision systems
| Autor: | Mikel Zatarain, A. Mendikute, José A. Yagüe-Fabra, Ibai Leizea |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Coupling
0209 industrial biotechnology Engineering business.product_category business.industry Machine vision Orientation (computer vision) Applied Mathematics Measure (physics) ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION 02 engineering and technology Condensed Matter Physics 01 natural sciences Clamping Machine tool 010309 optics 020901 industrial engineering & automation 0103 physical sciences Calibration Measurement uncertainty Electrical and Electronic Engineering business Instrumentation Simulation |
| Zdroj: | Zaguán. Repositorio Digital de la Universidad de Zaragoza instname |
| Popis: | On-machine measuring (OMM) systems are being more and more applied in machine tools in order to measure workpieces on the machine itself. Many of these systems are directly mounted in the machine spindle, so the measuring uncertainty is affected by clamping positioning and orientation variations, especially when integrating optical systems based on machine vision. This paper presents a self-calibration technique for vision systems by using redundant information of on machine measurements, avoiding extra mechanical anchoring or calibration means. It has been applied to a vision system with the angular placement uncertainty of a tool holder coupling being the main uncertainty contributor. A milling machine pilot case has been selected for demonstration, showing an effective self-calibration capability both in laboratory and industrial conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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