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Mirror Edge Inspection Using AI-Based Vision System

Raghava KashyapaFeb 15, 20222 min read
Mirror Edge Inspection Using AI-Based Vision System

Problem - Inaccuracy in defect detect... The danger of getting a cut... speed of the production is high and the minimum defect size...

CLIENT BACKGROUND

Our client is an ISO 9001-2008 company certified by TUV Nord, engaged in offering innovative automation solutions in the engineering field for the last 8 years. They have experienced amazing business growth exceeding more than 70% year on year, through its innovative & cost-effective salutations in various products and focus on complete customer satisfaction with competitive cost & excellent service.

PROBLEM

  • Inaccuracy in defect identification on the edge surface of the glasses (after glass cutting)
  • The danger of getting a cut in manual inspection
  • Speed of the production is high and the minimum defect size is 0.5mm causing many glasses to be uninspected

PROBLEM IMPLICATIONS

  • Irregularities in the edge surface of the mirror do not let it sit on the frame properly
  • The quality standards do not meet and affect the customer experience badly

CLIENT REQUIREMENTS

  • To automate the inspection of the mirrors and automatically reject the defective ones with the help of machine vision technology
  • To achieve higher accuracy for defect identification in order to reduce or eliminate the false acceptance rate
  • To identify the defects like chip-offs, scratches, etc

CURRENT PROCESS

The process is being done manually which is a very time-consuming process requiring a lot of labor and there is a significant scope of error as well.

Manual check mirror/glass quality

The mirror glass is guided to the inspection station on a conveyor, where there will be a camera placed above the mirror glass with proper illumination to avoid reflection in the captured images.

  • AI-based segmentation technique is used to identify the surface of the glass for defects like chips, scratches, etc.
Good Mirror Quality
Glass edge defects - rough edges

CONCLUSION

With the help of an AI-based machine vision system, the following potential benefits could be observed –

  • Can achieve an accuracy of close to 99 percent to identify defects with missing screws.

Put these insights to work on your line

Talk to our vision engineers about automating inspection for your parts and tolerances.