Vision Based Eccentricity Measurement of Auto-Hub and its Simulation

Abstract:

A machine vision based measurement system of auto-hub’s eccentricity between the center circle and the pitch circle of bolt holes is proposed in this article. Pictures of all bolt holes are shot when the auto-hub is rotating. The eccentricity can be calculated by tiling these pictures to a global image. There are some error factors in the system such as run-out of rotation center, inclined platform, rotation angle error, tilted auto-hub’s surface, roundness of the center hole and angle between bolt holes uneven. Mathematical models of these error factors are studied. By stimulating all these error factors, run-out of rotation center has the greatest impact and some key parameters are given in mechanical system design.

• Periodical: Advanced Materials Research (Volumes 503-504)
• Pages: 1420-1423
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.503-504.1420
• Online since: April 2012
• Authors: Feng Ling Zhang, Rui Han, Yin Peng, Lei Wang
• Keywords: Auto-Hub, Machine Vision, Pitch Circle, Simulation

References

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