任意歯形をもつ歯車と工具の設計・加工に関する研究 : 第4報, NC工具・歯車研削盤の試作とその応用例

概要

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An NC gear-grinder for finishing gears with an arbitrary profile was designed and made by the authors. This NC grinder is also capable of finishing gear-cutting tools with cutting edges of arbitrary shape. The NC grinder has four controlling axes, including a rotational axis for dressing and trueing the grinding wheel, and is capable of grinding cylindrical gears and worms with diameters up to 350 mm and a face width of 200 mm. For grinding tests of the NC grinder, conventional helical gears (m_n=5, N=15, β=25゜) and a pair of gears (m_n=2, N_1/N_2=3/21) with a large helix angle of β=60゜ were ground using grinding wheels with profiles decided by the element-removal method proposed by the authors. The accuracy of the ground gears was in the 0 class of JIS, and their surface roughnesses were in the range of 0.3-1 μm R_<max>. In addition, a Novikov gear hob with convex cutting edges was finished on the NC grinder. The errors of the cutting-edge profile and tooth thickness of the ground hob were less than 10μm.
一般社団法人日本機械学会の論文
1989-06-25