Industrieroboter
ams OSRAM offers advanced vision and position sensing solutions that enhance the precision, safety, and flexibility of stationary and collaborative robots in manufacturing environments.
Industrieroboter
Stationary robots accelerate and execute manufacturing tasks in production such as pick-and-place, welding or assembly. With the help of more advanced vision-based solutions, robots can perform more complex tasks providing greater flexibility, rendering them useful for different tasks.
As seen with mobile robots already, advanced image processing combined with 2D or 3D camera solutions achieve the required precision and quality. ams OSRAM's global shutter image sensors master the challenge of acquiring high-quality images without motion artifacts.
A new trend in stationary robotics are modern “cobots” that closely collaborate with humans or operate in their direct neighborhood without the need for separating safety shields. The uptake of cobots in manufacturing necessitates reliable collision detection or even collision prevention. High performance vision solutions could be an enabling factor but are typically mounted at the outer part of the robot’s workcell, requiring extra safety assessments during final installation. A more advanced setup could implement a set of multi-zone time-of-flight sensors around the robot’s socket (for example) for sensing the safety critical presence of objects or humans relative to the exact position of the robot arm and the handled work piece. Such a configuration requires exact awareness of the actual arm position of the robot. ams OSRAM’s contactless position sensors offer a high-resolution IC-solution that is ideally suited for sensing and controlling the linear or angular position of the robots’ joint systems. Additionally, the position sensors help motor drives to control the torque and speed more precisely by providing accurate rotor position data, especially at start and stop of the motor.
Finally, object detection for pick-and-place tasks could be further enhanced by combining the vision system with a multi-channel spectral sensor for material categorization. Imagine a setup where work pieces differ only by material but not in color or shape. ams OSRAM sensors can read the spectral signature of objects and simplify the identification of objects.
Safety installations with obstacle detection, machine vision, presence & proximity detection, human-machine interface, and servo motor control are important functions to build a complete system and are illustrated in the following block diagram: