Robot tool positioning and alignment

Robot tool positioning and alignment

One of the main applications of machine vision in industry is in the alignment and positioning of tools that are used in a large variety of tasks. In virtually every example of industrial automation, precise positioning of an end-tool (often attached to a robot arm) is required to complete a planned operation. Several examples can be drawn from the automotive industry, food manufacturing, industrial assembly, electronics industry to mention a few.

By means of image processing and 2D/3D object recognition, precise measurement of distances and objects can be derived allowing real-time closed-loop control of the machine tool. In some cases, though, vision equipment can be replaced - or coupled - with measurement sensors (such as laser displacement sensors) which are often simpler to set up and provide direct signals that can be fed back to the control system.

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