Object detection with robot thanks to light section sensor

  • Posititionsgenaue Ablage von Teilen mit Leichtbauroboter

  • Roboter mit Lichtschnittsensor

  • Der Arbeitsradius beträgt bis zu 850 mm, die Wiederholgenauig-keit ± 0,1 mm

  • Kostengünstige Gesamtlösung aus Sensor, Roboter und Software

Light-section sensor for bin picking

Faude Automatisierungstechnik GmbH in Gärtringen develops innovative product solutions using forward-looking technologies, such as the UR-6-85-5-A lightweight robot from the Danish company Universal Robots. For the realization of an optimum solution in the supreme discipline of "bin picking," this robot was equipped with a Leuze electronic light-section sensor.

The six-axis robot, with a weight of just 18 kg, places components weighing up to 5 kg in a working radius of 850 mm at a defined position in the room with a repeatability of ± 0.1 mm with the correct orientation – regardless of whether up, down, tilted or rotated. To give the robot the ability to automatically detect the components, it was equipped with a Leuze electronic LPS 36 (Line Profile Sensor) light-section sensor and the Faude "Flexvision" image processing system (see figures). With this solution, pattern detection and position determination of components runs smoothly, thanks to the interaction between the lightweight robot, the image processing and the Leuze electronic light-section sensor.

Of central importance: The LPS 36 light-section sensor

With the LPS 36, Leuze electronic has realized sensors for economical object detection over long measurement ranges from 200 to 800 mm. The transmitters and receivers are contained in an easy-to-install unit with a very compact housing design.

LPS sensors can measure the dimensions or position of objects. Where previously complex sensor solutions, combinations of sensors, or additional evaluation units were necessary, now LPS light-section sensors are used, as the example at Faude impressively shows: With the sensor, the robot automatically detects which component it can grip best. The height information in the sensor offers the possibility of calculating the position in the third dimension. Previous problems with respect to lighting technology in the image processing are eliminated by the light-section sensor, as it is insensitive to ambient light.

The "Flexvision" solution from Faude is an intuitive, high-performance image-detection and processing system specially developed for industrial use. The modular design with the HALCON libraries from MVTec Software of Munich makes the image processing system very flexible.

A very good solution at a low price

The weight, the simple system installation and configuration, and the low price characterize the complete system. The return on investment is achieved in approximately six months through the economical set price of about 38,000 euros. "This intelligent automation system satisfies current market requirements with regard to flexibility, simple operation, process reliability and productivity," sums up Dieter Faude, Managing Director of Faude Automatisierungstechnik GmbH – one of the top 100 companies in Germany in 2009 (www.faude.de/TOP100).

LPS désormais avec interface HALCON

Entre temps, les sociétés Leuze electronic et MVTec Software ont développé une interface d'acquisition d'image pour les capteurs de profil LPS 36. Celle-ci permet d'exploiter les capteurs à l'aide du logiciel de traitement de l'image HALCON de l'entreprise munichoise distribué dans le monde entier. Grâce à la nouvelle interface, il est possible de saisir facilement des données 3D équidistantes à l'aide des capteurs de profil et de lire les données 3D calibrées directement à l'aide du logiciel HALCON directement.

La nouvelle interface prend parfaitement en charge les fonctions des capteurs de Leuze electronic. L'intégration et le développement d'application sont effectués simplement et rapidement à l'aide des opérateurs de vision 3D de la logithèque HALCON. Les données mesurées du capteur LPS 36 peuvent ainsi être lues et retraitées pour les applications 3D exigeantes, telles que la mesure d'objets ou la saisie robotique. Il est possible, par exemple, de calculer le volume et la position d'objets en trois dimensions dans l'espace. Cela évite aux utilisateurs de devoir développer et programmer leurs propres algorithmes.

Produit

  • Secteur/domaine

    Technique de Manipulation de Matériels (prélèvement)

  • Cahier des charges

    Contrôle de présence, la détection de situation

  • Application

    Object detection with robot thanks to light section sensor

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Leuze electronic France 0033.(0)1 60 0512 20 (lu-ve 8h30 - 17h30)