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'MilliDelta' Robot for Microsurgery, Microassembly and Micromanipulation

Because of their high precision and speed, Delta robots are used in many industrial processes like pick-and-place assemblies, machining, and food packaging. Delta robots use three individually controlled and lightweight arms that guide a platform to move fast and accurately in three directions. Now, Harvard  researchers introduce a millimeter-scale delta robot, the 'milliDelta'. By integrating a microfabrication technique with high-performance composite materials that can incorporate flexural joints and bending actuators, the milliDelta can operate with high speed, force, and micrometer precision, which make it compatible with a range of micromanipulation tasks in manufacturing and medicine.

Topics:
Automation Manufacturing & Prototyping Medical Motion Control Robotics

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    Transcript

    00:00:02 ♪Music Starts♪ Delta Robots are comprised of three articulating arms connected to an output stage. They are extremely precise and agile, and can be used for "pick & place" and 3D Printing. Researchers at the Wyss Institute and Harvard SEAS have developed a millimeter-scale delta robot, the "milliDelta". Possible applications at this scale include microassembly, micromanipulation, and tremor cancellation in microsurgery. Our design is powered by three independently controlled piezoelectric bending actuators. At 15 millimeters by 15 millimeters by 20 millimeters, it has a payload capacity of ~3x its mass. It can operate with precision down to ~5 micrometers, at frequencies up to 75 hertz.

    00:00:41 and experience accelerations of ~22 gravitational acceleration. The design has potential for high bandwidth, high-precision applications at the millimeter-scale. ♪Music Ends♪