Researchers at Seoul National University of Science and Technology (SeoulTech), led by Gwang-Pil Jung, have developed a weird Snatcher robot that comes equipped with a robotic arm that shoots out like a chameleon’s tongue. Measuring just 12 x 8.5 x 8.5 centimeters and weighing in at 120 grams, the robot’s tongue is capable of grabbing 30 grams from 80 centimeters away in under 600 milliseconds. Read more for a video and additional information.
To build this robot, the team first had to develop a spring-like device controlled by an active clutch combined with a single series elastic actuator. The chameleon’s tongue passes through two geared feeders that are powered by a wind-up spring. What they ended up with was an ultra lightweight robot capable of retrieving objects 0.8 meters away within 600 milliseconds.
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Our final goal is to install the Snatcher to a commercial drone and achieve meaningful work, such as grasping packages. To solve this issue, we are finding materials having high energy density. We are planning to make a bi-stable gripper to passively grasp a target object as soon as the gripper contacts the object,” said Gwang-Pil Jung, a researcher at Seoul National University of Science and Technology (SeoulTech).