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문성민(Sung-Min Moon),강재화(Jae-Hwa Kang),키도히로미쯔(Hiromitsu Kido),구로가와슈헤이(Syuhei Kurokawa),류성기(Sung-Ki Lyu) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.1
Gears are reliable and efficient power transmission elements. They have been widely used in all kinds of machinery. Nowadays, resource conservationㆍenergy conservationㆍenvironmental improvements from the request of the compact, light weight, high efficiency, low costㆍHigher efficiency is required. Tooth root and bottom profiles of cylindrical gears affect bending fatigue life, but they are hard to measure with conventional gear measuring machine(GMM), because GMM is normally customized to measure only gear working flanks. The authors try to develop a new type of GMM by installing an extra 3D scanning probe and control software to measure tooth root and bottom profiles. First, in order to measure in various directions, a 3D scanning probe has been attached to the GMM developed. Next, calibration algorithm has been developed. Deviations of the calibration results are measured and it is found that systematic error must be caused by heat from driving motors. A new alternative GMM with driving motors generating less heat was designed and two GMMs are compared. Finally, 3 Dimension measurement of tooth root and bottom profiles of cylindrical gears is described.