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一、H055平磨原主轴结构的分析我厂 H055平磨只能作粗加工。由于前滑动轴承与轴颈间隙必须在0.06毫米以上,因此加工零件质量差,表面光洁度▽6,并有明显波纹。在我厂不到一年,主轴抱轴,停产多年。虽经多次修复,仍不能正常生产,因而成了厂里老大难机床。原机床主轴结构见图1。根据主轴结构,此机床有如下无法克服的缺点:前轴承用整体外锥内圆滑动轴承,内径Φ90毫米,长度270毫米,用油杯润滑。后轴承为径向推力球轴承。砂轮电
First, H055 plain mill spindle structure analysis I plant H055 flat grinding only for roughing. Due to the clearance between the front plain bearings and the journal must be 0.06 mm or more, the quality of machined parts is poor, the surface finish ▽ 6, and obvious ripple. In my factory less than a year, spindle axis, discontinued for many years. Despite repeated repairs, still can not be normal production, which became the factory boss machine tool. The original machine spindle structure shown in Figure 1. According to the spindle structure, the machine has the following disadvantages can not be overcome: The front bearing with the overall outer cone sliding bearings, diameter Φ90 mm, length 270 mm, lubricated with oil cup. After the bearing radial thrust ball bearings. Wheel electric