3D vision system with laser time-of-flight technology
Handling with vision
Liebherr's vision systems are also capable of chaotic feeding. Depending on the requirements, Liebherr works with a choice of three different variants. The 3D vision system with laser runtime process is a red light laser.
This is a robust solution regardless of ambient light and degree of contamination. An alternative is a 3D vision system with a precise two-stage laser triangulation process with a blue light laser. This system is suitable for workpieces made of metal, organic and semi-transparent or reflective materials. The third option is the highly flexible 3D stereo vision system with triangulation process, supported by an additional projector unit. It is particularly suitable for short cycle times.
The 3D stereo vision system can create complete and homogeneous depth information of the scene using special projector technology. This results in fast and high-resolution image recognition. An eight-axis robot arm can thus reliably empty a transport container up to one meter deep. The optical detection, depending on the vision system and the associated evaluation, takes place within five seconds. This enables short cycle times for the entire system. Thanks to the high resolution, the surface of the data clouds is smooth and almost noise-free. These high-quality measured values are transmitted to the main software of the bin-picking system. The software makes it easy to learn workpieces, grippers and their grip points. pb
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