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我厂生产的水轮机主轴,长度一般为3500～4000 mm,L/d≥25,原在C_(W61100)车床上加工,质量很不稳定。我们根据现有设备条件,改在MQ_(1350A)外圆磨床上,利用机床自身的液压系统和液体静压轴承的原理,搞了一个专用液压中心架,使MQ_(1350A)磨削范围扩大了一倍。主轴在半精车加工后,由液压中心架支承,在磨床上磨削轴颈和其它配合面。经过两年多使用证明,这个液压中心架是比较成功的,主轴改为精磨加工后,质
I plant the main shaft of the turbine, the general length of 3500 ~ 4000 mm, L / d ≥ 25, the original C_ (W61100) lathe processing, the quality is very unstable. According to the existing equipment conditions, we changed the MQ_ (1350A) cylindrical grinder to make use of the hydraulic system of the machine tool and the principle of hydrostatic hydrostatic bearing, and developed a special hydraulic center frame to enlarge the grinding range of MQ_ (1350A) Double Spindle in the semi-fine car after processing, by the hydraulic center frame support, grind the journal and other mating surfaces on the grinder. After more than two years of use proved that the hydraulic center frame is more successful, the spindle to the grinding process, quality