Abstract

Publisher Summary This chapter discusses the study on the automatic inspection of defects that occur on contact parts. It reports on the mechanism of detective parts and its algorithm. Automation for the appearance inspection process has been so far the following two reasons, while automation for the production process has been made a great progress. It appears difficult first to mechanize the excellent function of the eyes of human being and second to indicate the appearance inspection criteria in terms of quantity. In addition, it seems almost impossible for the purpose of automation of inspection to change the design of products and to alter the existing criteria that are carried out through visual inspection, from the stand point that the first priority is given to production. The chapter presents an example of having defects in appearance, which will give bad effects of electrical contact when the switch is turned on and to insulation when the switch is turned off. These defects are caused while contact points are welded on the spring.

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