Smart image processing
Camera recognizes orientation of workpieces
Vision & Control's intelligent image processing systems detect the alignment of assembly parts. For example, when junction boxes are married to their lids.
During automatic assembly, the correct orientation of the individual parts fed in is crucial. For example, when placing embossed lids on junction boxes. Because they are printed after the wedding, the square lids must always arrive at the assembly station with the same edge. The orientation of these lids can be reliably checked using an image processing system from Vision & Control. Even in confined spaces and at high cycle rates.
The heart of the test system is the smart pictor N-403M, which is smaller than a pack of cigarettes. In addition to a 0.3 megapixel image sensor, the monochrome camera contains a powerful dual-core Cortex-A9 processor from ARM. This means that image processing takes place directly in the device. Thanks to the integrated Ethernet interface and web interface, the system can be operated from any PC or tablet in the same network.
In our example, the entocentric vicotar VCN 1.8/35mm lens is used as the optical system. High-contrast illumination is provided by a combination of four short diffuse line lights from the vicolux LDL14 series. They are attached directly around the lens using an adapter.
With the pre-installed inspection sequences, the inspection routine can be created in just a few steps without in-depth programming knowledge. After the image has been captured, the center of the lid is first determined using the four lid holes, which appear darker in the image. Based on this, the program uses the "Probing > 360° pattern search" function to detect the alignment of the lid embossing.
In the event of rotation, the lids are corrected in a subsequent turning station. The control works with different lid sizes and colors. as
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