Abstract
In the production of small water pumps, an automatic machine was requested for water pressure testing of the final products, in which hoses are automatically connected to inlet and outlet flange holes of the pumps. For this purpose, a visual device has been developed to detect the hole positions by means of CCD type TV cameras. This “industrial eye” also includes special electronic circuitry for pattern matching, which utilizes quarter patterns of a circular hole image as templates.
The initial fed-in position of the pumps to be worked on involves some variation caused by the difference of pump types and also the accumulated dimensional errors encountered in prior assembly processes. By equipping mechanical arms with TV cameras, a closed-loop sequential recognition method can be adopted, so that the eye can quickly find the hole position first, and then fine tune the arm position by subsequent measurement with higher resolution.
This industrial eye is now being successfully used in the pressure testing process of a water pump production line in conjunction with manipulator arms as part of the visual feedback loop.
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© 1979 Plenum Press, New York
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Uno, T., Ikeda, S., Ueda, H., Ejiri, M., Tokunaga, T. (1979). An Industrial Eye that Recognizes hole Positions in a Water Pump Testing Process. In: Dodd, G.G., Rossol, L. (eds) Computer Vision and Sensor-Based Robots. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3027-1_6
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DOI: https://doi.org/10.1007/978-1-4613-3027-1_6
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-3029-5
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