2904 圧電素子を用いた油圧式小型リニアアクチュエータの開発(J20-2 次世代アクチュエータシステム(2),J20 次世代アクチュエータシステム)

概要

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This paper describes the development of a new linear actuator which suits for gripper of industrial robot for millimeter-size parts. A hydraulic miniature linear actuator using a PZT that has relatively strong force, large stroke and small volume is proposed. Its possibility of realization is shown by design and prototype. The actuator is composed of a miniature pump and an output cylinder. A layered PZT is used to the miniature pump to make large discharging pressure. The miniature pump has been prototyped and driven on trial, but the fluid has not been transformed. From results of verification experiments, it has been confirmed that the pump displacement has been absorbed by deforming sealing materials used in the piston. On this account, a diaphragm is used instead of the piston, and its validity is verified by simulation.
社団法人日本機械学会の論文
2007-09-07