Martinez Rodriguez, Pablo, Al-Hussein, Mohamed and Ahmad, Rafiq (2020) Online vision-based inspection system for thermoplastic hot plate welding in window frame manufacturing. Procedia CIRP, 93. pp. 1316-1321. ISSN 2212-8271
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Abstract
Current manual quality control processes in continuous production environments are limited in impact and reliability. An online automatic inspection system is proposed to generate quality-oriented information regarding the welding of frames in window manufacturing. Using novel edge detection techniques and the Hough transform, a novel algorithm is presented to accurately estimate in real-time welding angles and the overall squareness of the window frame. The inspection system presented is integrated in an automated four-point welding machine and provides decision support to quality control operators regarding the conformity of welded frames. The system is validated in a real scenario and the proposed algorithm estimates welding angles and overall frame squareness with an accuracy of 98.38%, indicating an average error less than 0.8 degrees.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding information: The authors gratefully acknowledge the financial support of the Natural Sciences and Engineering Research Council of Canada (File No. IRCPJ 419145-15). |
| Uncontrolled Keywords: | inspection system, machine vision, thermoplastic welding, hot plate welding, window manufacturing |
| Subjects: | H300 Mechanical Engineering |
| Department: | Faculties > Engineering and Environment > Mechanical and Construction Engineering |
| Depositing User: | Rachel Branson |
| Date Deposited: | 14 Feb 2022 15:40 |
| Last Modified: | 14 Feb 2022 15:45 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/48460 |
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