Abstract: For the automatic processing quality inspection of automobile automatic transmission valve body, a design scheme of automatic inspection system based on industrial endoscope photography is proposed. The scheme integrates several modules such as machinery, electronic control, vision and software, to realize automatic visual inspection, and prototype development and shooting test of key parts of the system are carried out. The results show that the system can effectively complete the full-view image shooting and defect feature extraction of the inner wall within the valve hole, which contributes to improve the detection accuracy, to facilitate data archiving, and finally to improve the automation level of the factory

Key words: transmission valve body, industrial endoscope, machine vision, inspection, software development