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压缩机曲轴轴颈及曲柄销是动配合,要求表面粗糙度在Ra0.2以下,常用磨削的方法加工抛光,产量低,设备昂贵。本文介绍的是用振动抛光机对曲轴进行拋光的新方法,一次可装夹30根曲轴,拋光效果好、质量高,有广泛的应用前景。 1.拋光原理振动抛光机所采用的磨料为自由移动的松散磨料,当把被加工的工件放入装有磨料的振动抛光机容器里时,由于容器不停地运动而将惯性作用传递给磨料使之自由移动,与工件表面摩擦,由于磨料与工件各自都有特有的比重,从而导致这些磨料与工件的相对运动。这种摩擦的切削量很小,从而起到抛光作用。
Compressor crankshaft journal and crankpin is a dynamic fit, requiring surface roughness below Ra0.2, the common method of grinding and polishing, low output, expensive equipment. This paper introduces a new method of polishing the crankshaft with a vibrating polisher, which can hold 30 crankshafts at a time. It has good polishing effect, high quality and wide application prospect. 1. Polishing Principle Vibratory polishing machine used for loose loose abrasive moving freely, when the workpiece is processed into the vibrating polishing machine with abrasive container, due to the container kept moving inertia will be passed to the abrasive So that the free movement, friction with the workpiece surface, due to the abrasive and the workpiece each have their own specific gravity, resulting in the relative movement of these abrasive and the workpiece. This amount of friction cutting is small, which play a role in polishing.