ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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9
Issue
vol 63 / September, 2020
Article

DOI 10.17586/0021-3454-2020-63-9-830-839

UDC 004.75.924

APPLICATION OF MACHINE VISION IN THE TASKS OF AUTOMATIC POSITIONING OF MODULAR EQUIPMENT TOOL

M. Y. Afanasiev
ITMO University, Saint Petersburg, 197101, Russian Federation; Associate professor


Y. V. Fedosov
SC “Russian Institute for Power Radiobuilding”, Saint Petersburg, 199048, Russian Federation; ITMO University, Saint Petersburg, 197101, Russian Federation ; Engineer; Associate professor


A. A. Krylova
Lar Technologies, LLC, Saint Petersburg, 197342, Russian Federation; ITMO University, Saint Petersburg, 197101, Russian Federation; Software developer; postgraduate


S. A. Shorokhov
ITMO University, Saint Petersburg, 197101, Russian Federation; postgraduate, engineer


Abstract. Modular equipment is characterized by versatility in use and can perform processing operations as well as supporting ones. It is obvious that modules can vary in size and in the tool axis position, which makes it difficult to install and configure in manual mode. A technique for automated positioning of removable modules for a three-coordinate platform based on the use of a computer vision system is proposed. An algorithm is developed that combines an observing camera located above the working area with incremental encoders of the platform servo drives. A library of optical labels is used to determine the configuration of the workspace and the dimensions of the module. This technique allows to avoid the error of manually installing modules by comparing the coordinate systems of the module and the platform, as well as to increase the level of automation of the product workflow.
Keywords: machine vision, CNC equipment, camera, 3-axis platform, modular equipment

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