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박종봉 경일대학교 산업기술연구소 1999 産業技術硏究所 論文集 Vol.6 No.-
This paper presents a mechanical tuning method for multi-spindle control of NC machine tools. To reduce the profile error in the feed drive system, it is useful to adopt same transfer function of multi-spindle machine tools. By selecting the correction vector of servo rigidity and natural vibration on JK map, multi-spindle control can be tuned by the mechanical parameters.
朴鍾奉 慶一大學校 1995 論文集 Vol.12 No.2
This paper present the renovation of dynamic characteristic of feed drive system by using magnetic damper. By attatching magnetic fluid damper on ball screw, feeding drive system can be renovated on the damping coefficient and position amplification gain margins. It can adopt 28-52% higher position amplification gain as maintain same gain margin.
朴鍾奉 慶一大學校 1997 論文集 Vol.14 No.2
This paper present a new modeling and natural frequency of feeding drive system in machining center to evaluate statistic characteristics especially static rigidities. Rigidities and natural frequency of feeding drive system of medium and heavy machining center are analized as lst degree and natural frequency and rigdities can be calculated by computer. Natural frequencies are proportioned to disstance between two ball bearing and inverse proportioned to root of distance between bearing by mass of feeding drive system. Natural frequency of double anchor type M/C become about twice that of single anchor type M/C.
朴鍾奉 慶一大學校 1999 論文集 Vol.16 No.2
This paper present a proposed mechanical tuning of feed drive system with JK map in NC machine tools. For stable control of feed drive system with closed loop control, these 3 method are useful, 1)elevating rigidity of drive system, 2) high damping coefficient, 3) reducing inertia of rotating materials.