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하태호(Taeho Ha),송준엽(Junyeob Song),이창우(Changwoo Lee),이재학(Jaehak Lee),김천호(Chounho Kim),김종오(Jongoh Kim) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
Linear vibrator is one of the core parts for a smartphone. In this study, we suggest micro-factory design for manufacturing linear vibrator. The micro-factory is designed to be consisted of four main assembly machines which are including cover assembly, weight assembly, plate assembly and total assembly. Cycle time of the factory is expected to be about 8 sec.
송준엽(Jun-Yeob Song),송은지(Unji Song),하태호(Taeho Ha),정영상(Young-sang Jung),김영규(Yeong-gyoo Kim) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
In this paper, we developed the prototype of automated evaluation system for phone camera module. This full automated system is designed to be model change friendly. Also, we built a testbed to develop the system that allow great flexibility for model change not only in mechanical viewpoint and but also viewpoint of software by introducing anisotropic conductive sheet, universal cartridge and replacing model-oriented evaluation method with SMIA (Standard Mobile Imaging Architecture) based one.
Module Type 소형 폰 카메라 렌즈모듈 조립장치 개발
이창우(Changwoo Lee),송준엽(Junyeob Song),하태호(Taeho Ha),이재학(Jaehak Lee),김천호 한국생산제조학회 2010 한국공작기계학회 추계학술대회논문집 Vol.2010 No.-
Micro-factory has many advantages but few examples of the commercialization. Because productivity and yield are less considered in micro-factory research. The micro-factory must also ensure productivity and yield in order to be commercialized. In this study commercialization of assembly micro-factory for phone camera lens module is a main goal.
회전형 자동 Pitch 조정 Multi Picker 개발
이창우(Changwoo Lee),송준엽(Junyeob Song),하태호(Taeho Ha),이재학(Jaehak Lee) 한국생산제조학회 2009 한국공작기계학회 추계학술대회논문집 Vol.2009 No.-
Cellular phone camera lens is produced by plastic injection molding process. Plastic injection mold has the gate through that lens mold is filled by molten plastic. Mold gate destroys the lens symmetry so lens has other special quality according to the orientation. Multi picker that can control the pitch has been introduced for productivity elevation. But the multi picker can not control the rotation. In this paper multi picker for lens module assembly is designed to control lens orientation and the pitch simultaneously.