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    Machinedesign 17244 Promo Onrobot Gecko Gripper 2 3
    1. Mechanical & Motion Systems

    NASA Technology Meets Manufacturing

    Aug. 28, 2018
    Gripping without chemical adhesives or vacuums, the future of automation is out of this world.
    Jeff Kerns

    Scientists have been researching for years how to mimic Vander Waals forces to climb and grip smooth surfaces effortlessly like a Gecko. Recently, Danish manufacturer OnRobot released a gripper that uses this technology for industrial application of innovative NASA technology.

    With up to 125 N, the four Gecko pads gains maximum gripping force. The Payload will vary per application, as surface roughness and contamination will affect it. However, in ideal conditions it can lift about 9 lb with a safety factor of two.

    Www Machinedesign Com Sites Machinedesign com Files On Robot Gecko Gripper 2 1

    Since the gripping surfaces’ functionality diminishes with increasing contamination of their fine microstructures, OnRobot has developed a special self-cleaning mechanism. It is integrated under the four gripping surfaces and ensures a long-lasting use of the fibers. The technology combines piezoelectric ultrasound with an electrostatic process. Within 15 sec., it can compensate for a contamination-related loss of adhesion of 10%. Repeated cleaning and contact cleaning can then restore 99% of the original adhesive strength.

    There are other features, such as a proximity sensor for feedback. Programmers can keep robot arms operating the gripper at full speed, up to a suggested 2 in. above a work piece. In the case of cobots, if a worker bumps into the machine, feedback can sense whether the piece was dropped, and the cobot can be programmed accordingly for these situations. And this gripper wasn’t developed only with cobots such as Universal Robots in mind: The standard interface makes it easy to integrate with other robotic arms such as Fanuc, Kuka, and Kawasaki.

    Www Machinedesign Com Sites Machinedesign com Files Source Esb Looking For Parts Rev Caps

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