Bosch Rexroth has launched The Smart Flex Effector, a new, sensor-based compensation module that promises to give robots and Cartesian linear systems human-like sensitivity, offering new opportunities for factory automation. Processes that are difficult to manage can now be automated, optimized and monitored through simple retrofitting, per Bosch Rexroth. Thanks to a kinematics system that works independently in six degrees of freedom, the tactile device with sensitive touch precisely records the position of the work piece and passes the information to the robot-control unit for active compensation purposes. Typical applications include joining processes with minimal tolerances, complex assembly work or difficult handling tasks. Errors and rejects are minimized, and teaching and commissioning can be carried out more easily and quickly, claims its maker.
The Smart Flex Effector is designed for handling loads of up to 6 kg. For machine manufacturers and users, it promises to open up a wide range of new applications that were difficult with previous equipment, such as passive -compensation units, force-torque sensors and visual systems. The applications range from process automation and quality monitoring to teaching and the controlled handling of objects.The Smart Flex Effector is able to correct processes with great complexity and tight tolerances, such as in the case of positional deviations between the tool and the work pieces or in complex joining processes with minimal tolerances, notes its maker. Thanks to this tactile sensitivity, tasks that were not automatable can now be performed by robots. The Smart Flex Effector also reduces the time previously needed for teaching processes. Thanks to the 6D position recording, the robotic control system can read the exact coordinates for gripping and placing points directly. Repeated learning during operation is therefore possible in an automated manner. Robots can also be taught manually by moving them into position by hand.Even during sampling, the Smart Flex Effector can be used to recognize positional deviations and, with the help of the sensor system, determine the exact position of the object. The robot accurately picks up assembly or handling objects, positions them in a controlled manner and places or sorts them reliably. Even parts made of glass or other fragile materials can now be handled safely. To ensure maximum productivity, the compensation module can be actively moved into the zero position and electromechanically locked for fast transfer runs.As part of process monitoring, the Smart Flex Effector not only makes documentation easier, but quality can be improved, stresses Bosch Rexroth, as deviations are recognized immediately and either corrected or reported to the control system, limiting errors and unnecessary costs owing to rejects or followup work.The Smart Flex Effector offers an RS-485 interface as well as an I/O interface for exchanging data. For a passive compensation function, the Smart Flex Effector is simply screwed to the robot flange and the gripper. The locking function and data transmission are available as soon as the unit is connected to the power supply and the control system.
