試作したデスクトップ型5軸NC精密研削盤の性能評価

（位置決め精度が加工特性に及ぼす影響）

抄録

This study was performed to manufacture a new desktop type 5-axis NC precision grinder. A table-on-table type 5-axis grinder with three linear axes on the tool side and two axes on the workpiece side was designed and manufactured. The positioning accuracy of the prototype grinder were evaluated. The positioning accuracy of three linear axis were measured and those of Y and Z axis were satisfied. Therefore, the positioning accuracy of X-axis was improved with additional machining. Grinding experiments using zirconia ceramics were carried out and the workpiece actual depth of cut were measured using laser displacement sensor. From these results, the improvement of positioning accuracy was reflected in workpiece depth of cut.