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一般平面磨床磨削工件的表面,光洁度只能达到▽▽▽7～▽▽▽9,如要得到更高的表面光洁度,需经研磨加工,这样生产效率低,且不能满足产品质量要求。因此,提高平面磨床的精度,是我厂设备维修部门的一项重要任务。最近根据日常检修中的摸索,通过三结合的方法,对M7120平面磨床的结构进行了分析,针对提高磨削精度和光洁度的最主要关键,即砂轮主轴与轴承的配合和砂轮主轴及电动机转子的动平衡,进行了提高精度的修理。磨头结构见图1。修理后,采用通常的磨削方法,工件的表面光洁度可以达到▽▽▽▽11～▽▽▽▽12,见图2。现将修理方法和要求介绍如下。
General surface grinder grinding the surface of the workpiece, the finish can only reach ▽ ▽ ▽ 7 ~ ▽ ▽ ▽ 9, to get a higher surface finish, to be ground, so that the production efficiency is low, and can not meet product quality requirements. Therefore, to improve the accuracy of surface grinder, plant maintenance department is an important task. Recently, according to the daily maintenance inspection, through the combination of three methods, the structure of the M7120 surface grinder was analyzed for improving the grinding accuracy and finish of the most important key, namely the wheel spindle and bearing with the grinding wheel spindle and motor rotor Dynamic balance, carried out to improve the accuracy of the repair. Grinding head structure shown in Figure 1. After repair, using the usual grinding method, the surface finish of the workpiece can reach ▽ ▽ ▽ ▽ 11 ~ ▽ ▽ ▽ ▽ 12, see Figure 2. The repair methods and requirements are introduced below.