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손길호(Gil-Ho Son),김미루(Mi-Ru Kim),이승준(Seung-Jun Lee),정재호(Jae-Ho Jeong),류경희(Kyung-Hee Lew),이득우(Deug-Woo Lee) 한국기계가공학회 2017 한국기계가공학회지 Vol.16 No.5
Research in the machine tool industry has focused on ICT-based smart machines rather than hardware technologies related to machine tools. Real-time tool-status monitoring is representative of this type of technology and has become important for measuring sensors during cutting processes. In this paper, we studied several research areas and used a round bar to conduct fundamental research into the axial displacement of the main spindle of a tool when it was subjected to a machining load. We were able to use the gap sensor to detect the axial displacement indirectly by using grooves with various shapes on the round bar and sensing the gaps between the grooves. We then determined the optimal groove shape for monitoring the tool state.