Unrolled Problem Of Rotary Objects And Automatic Visual Inspection Of Appearance Defects Of Bearing Rollers

W. Xian; Y. Zhang; Z. Tu; E. L. Hall

doi:10.1117/12.948974

21 March 1989 Unrolled Problem Of Rotary Objects And Automatic Visual Inspection Of Appearance Defects Of Bearing Rollers

W. Xian, Y. Zhang, Z. Tu, E. L. Hall

Author Affiliations +

Proceedings Volume 1004, Automated Inspection and High-Speed Vision Architectures II; (1989) https://doi.org/10.1117/12.948974
Event: 1988 Cambridge Symposium on Advances in Intelligent Robotics Systems, 1988, Boston, MA, United States

Abstract

This paper analyzes the unrolled problem of the rotary object and subsequently proposes a visual system in the inspection of bearing rollers. In section two,the author first reviews several generally used unrolling techniques of ball and cylinder as well as other rotary objects by single point scanning technique and then discusses the situation by CCD or SSPDA array aimiDg to improve efficiency. In section three, a visual inspection system of the surface defects of the bearing roller is presented. The test system consists of a photodiode array,a roller unrolling mechanism, a single board computer and a VAX-11.The first two parts are controlled by the single board computer to accomplish surface unrolling procedure, then the surface information is transmitted to VAX-11 (or IBM-PC/AT ) for further processing and classification. The results demonstrate that the system can effectively identify the surface defects of the bearing roller such as crack,nick,scratch,rust with minimum crack width abr'if ''20-30 μm and so on.

Citation Download Citation

W. Xian, Y. Zhang, Z. Tu, and E. L. Hall "Unrolled Problem Of Rotary Objects And Automatic Visual Inspection Of Appearance Defects Of Bearing Rollers", Proc. SPIE 1004, Automated Inspection and High-Speed Vision Architectures II, (21 March 1989); https://doi.org/10.1117/12.948974

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