在加工如图1所示回转支承外圈内圆弧槽d时,由于圆弧槽d中间有环形油槽使测量极为困难,因此在车削加工过程中尺寸D_0很难保证,工件返修率、报废率均很高。经工作实践,我们摸索总结出一套较为科学的测量办法,即省时又方便,深受操作者欢迎。 车削加工时,首先严格控制孔直径D_1的尺寸,然后在测量时用一个直径为20mm的标准钢球放入 As shown in Figure 1, the slewing ring bearing inner ring d, due to the circular groove d annular groove makes the measurement extremely difficult, so the size of the D0 in the turning process is difficult to ensure that the workpiece repair rate, scrap rate Are high. After working practice, we grope to sum up a set of more scientific measurement methods, that is time-saving and convenient, welcomed by the operators. Turning process, the first rigorous control of the hole diameter D_1 size, and then measured with a diameter of 20mm standard ball into