机器人微操控
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刷新机器人微操记录:42G弹射释放、横跨14个数量级精准操控
机器人大讲堂· 2026-03-08 04:04
Core Viewpoint - The article discusses the development of a universal gripper based on functional liquid metal (LiMU) that can gently and adaptively manipulate objects across a wide range of sizes and environments, inspired by the behavior of single-celled organisms like amoebas [1][3]. Group 1: Gripper Design and Mechanism - The core of the gripper is a 3D-printed flexible silicone chamber filled with functional liquid metal (FLM), designed with micro-columns that provide strong adhesion through Cu-Ga metal bonds [4]. - The gripper utilizes an electrochemical and magnetic field coordination to achieve ultra-soft grasping and active release of objects ranging from picograms to hundreds of grams, with a release speed record of 42G [3][5]. Group 2: Performance and Capabilities - The LiMU gripper can actively release objects by restoring high surface tension through electrochemical reduction, allowing it to "catapult" small items like human hair at speeds of 696 mm/s within 6 milliseconds [6][8]. - It can stably grasp and release objects across 14 orders of magnitude, from 10⁻¹² grams (picograms) to 10² grams (hundreds of grams), successfully handling micro-LED chips and silica microspheres without damage [8][10]. Group 3: Low Contact Pressure and Biological Compatibility - The gripper operates with a contact pressure as low as 10 Pa, significantly lower than the yield limits of many delicate biological tissues, enabling it to handle fragile items like tofu and fish fry without damage [10][12]. - It achieved a 99% success rate in manipulating 200 zebrafish embryos, demonstrating excellent biocompatibility and minimal impact on subsequent development [10][12]. Group 4: Environmental Adaptability - The gripper is designed to function in various environments, including air, seawater, and acidic or alkaline solutions, showcasing its dynamic adaptability [12][15]. - It can capture fast-moving objects, such as cockroaches, within 200 milliseconds, indicating its capability for dynamic tasks without visual assistance [12][15]. Group 5: Applications and Future Prospects - The LiMU gripper presents a new solution for long-standing manipulation challenges, with potential applications in biological sample handling, single-cell surgery, micro-assembly, and deep-sea exploration [15].