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一、引言高速磨削是现代机械制造领域中的一个研究方向。所谓高速磨削,广义上是指砂轮磨削速度高于35m/s。对于精密磨削,希望砂轮线速度达到50/ms以上。高速磨削与普通磨削相比,在磨削机理上是一次飞跃。无论从劳动生产率,砂轮耐用度,或是从被加工零件的精度和表面光洁度来看,高速磨削能够得到最佳磨削工况而给予大大提高。对于磨削孔径为2mm以下的小孔来说,要得到高速磨削,磨头转速必须达到35×10~4r/min以上。目前国内外用于小孔磨削的磨头最高转速只能达到18～22×10~4r/min,对于3～4mm孔径以下的孔,都可能达
I. Introduction High-speed grinding is a research field in the field of modern machinery manufacturing. The so-called high-speed grinding, broadly refers to the wheel grinding speed higher than 35m / s. For precision grinding, it is desirable that the grinding wheel line speed be more than 50 / ms. High-speed grinding compared with ordinary grinding, the grinding mechanism is a leap. In terms of labor productivity, wheel durability, or from the accuracy of the finished parts and surface finish point of view, high-speed grinding to get the best grinding conditions and greatly enhanced. For the hole diameter of 2mm or less, to get high-speed grinding, grinding head speed must reach 35 × 10 ~ 4r / min or more. At present, the maximum speed of the grinding head for small hole grinding can only reach 18 ~ 22 × 10 ~ 4r / min, and it is possible for the holes below 3 ~ 4mm diameter to reach