Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Design of Cymbal Displacement Amplification Device for Micro Punching System

마이크로 펀칭시스템 구현을 위한 심벌변위확대기구의 설계

  • 최종필 (강원대학교 기계메카트로닉스공학과 대학원) ;
  • 이광호 (강원대학교 기계메카트로닉스공학과 대학원) ;
  • 이해진 (한국생산기술연구원 디지털 성형공정팀) ;
  • 이낙규 (한국생산기술연구원 디지털 성형공정팀) ;
  • 김성욱 (스페이스솔루션(주)) ;
  • 주은덕 (스페이스솔루션(주)) ;
  • 김병희 (강원대학교 기계메카트로닉스공학부)
  • Published : 2009.02.15
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Abstract

This paper presents the development of a micro punching system with modified cymbal mechanism. To realize the micro punching, we introduced the hybrid system with a macro moving part and micro punching part. The macro moving part consists of a ball screw, a linear guide and the micro step motor and micro punching part includes the PZT actuators and displacement amplification device with modified cymbal mechanism. The PZT actuator is capable of producing very large force, but they provide only limited displacements which are several micro meters. Thus the displacement amplification device is necessary to make those actuators more efficient and useful. For this purpose, a cymbal mechanism in series is proposed. The finite element method was used to design the cymbal mechanism and to analyze the mode shape of the one. The displacement and mode shape error between the FEM results and experiments are within 10%. A considerable design effort has been focused on optimizing the flexure hinge to increase the output displacement and punching force.

Keywords

References

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