To satisfy the need for rock sampling devices in extremely harsh deep-space exploration environments,in this paper,we propose an ultrasonic driller,based on the principle of piezoelectric driving,which could be installed on the robotic arm of a rover to act as an end effector. In this driller,the ultrasonic transducer directly impacts the drilling tool,driving the drill tool to work at a high frequency to break rock. We designed the piezoelectric actuation unit in detail and analyzed the impact between the ...
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