고속 마이크로 펀칭 시스템 개발

This paper presents the design of high speed micro punching system using PZT actuator displacement amplification device. The punching process is easier, faster and more economical way to obtain the desired product shape the another conventional manufacturing processes. The PZT has a characteristic of high speed and reponse as a good actuator in high precision positioning device. In addition to, PZT can generate a superior force and give a fast frequency response above 10㎲. This system devide precision guide module and PZT module. The cymbal-type flexure hinge is used to amplify the displacement of a PZT because of the limited deformation range of PZT. The finite element method was used to determine the cymbal-type flexure hinge stiffness and analyze the mode shape.