Minimum quantity cutting fluid supply system for high speed spindles

在本研究中，一种新型的油雾供给（MQL）机构被开发并安装到加工中心的高速主轴系统的拉杆轴。对该机构的性能进行了实验和数值分析。所得结果总结如下。(1)通过本研究提出的非旋转机构，有效地抑制了油雾在主轴通过管道分离，并成功地提供油雾的工具的顶部在高速主轴旋转。(2)与完全干切削和通常的湿切削相比，具有固定插管机构的MQL系统在钻削和铣削试验中提供了良好的切削性能。(3)对高速主轴内油雾的行为进行了数值分析，证实了离心力作用下的油雾粘附现象。(4)对固定式插管机构的插管效果进行了数值分析，验证了该机构的有效性。

In this research, a new type of oil-mist supply (MQL) mechanism was developed and installed to the draw-bar shaft of the high speed spindle system of a machining center. The performances of proposed mechanism was experimentally and numerically analyzed. The results obtained are summarized in the following.(1) By the non-rotating mechanism proposed in this study, the oil-mist separation in the spindle through pipe was effectively suppressed and the oil-mist was successfully supplied to the top of the tool during high-speed spindle rotation .(2) Comparing with the complete dry cutting and usual wet cutting, the MQL system with the stationary pipe insertion mechanism provides a good cutting performance in drilling and milling tests.(3) The behavior of oil mist in the high-speed spindle was numerically analyzed, and the oil mist adherence phenomenon due to centrifugal force was proved.(4) The effect of the stationary pipe insertion mechanism was also numerically analyzed and the effectiveness of the proposed mechanism was confirmed.