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Lead Frame용 캠 프레스의 이송장치 고속화 설계
이찬홍,임선종 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-
The high speed feeding units, that are known generally weak points at the high speed semiconductor press are developed to increase feeding velocity up to 155%. The new designed feeding units has the performance, feeding velocity 170spm, positioning accuracy under 100㎛, decrease of link joint in feeding units, overload monitoring system with high sensitivity.
이상호(S. H. Lee),이찬홍(C. H. Lee),김갑순(G. S. Kim) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
With a rapid development in the area of micro and ultra precision technology, the micro surface machining of small size parts are explosively increased. Especially, to improve efficiency of various beams in lens and reflector, non-rotational symmetric form and several mm level heights changeable surface can be machined at a time. These geometric complex 3D surface cannot be machined by general short stroke FTS. The long stroke FTS if firmly needed to move directly several ㎜ and have ㎚ level positioning accuracy for the complex surface form. The long stroke FTS used linear motors to drive moving unit long and fine, aero static bearings to decrease friction and moving errors in guide way, optical linear scale with nm level resolution to measure position of FTS. Furthermore, to increase the performance of acceleration of FTS, the light material, such as AL is used for the structure and the high stiffness box type structure is selected. In this paper, the genetic algorithm approach is described to determine a set of design parameters for auto tuning. The authors have attempted to model the design problem with the objective of minimizing the error, such as variable pattern change. This method can give the better alternative than existing other method.