轴孔配合定位用的键槽不对称度误差,常用图1的方法测量:按实际槽宽选配紧度合适的量块,把基准轴放在v形铁上,v形铁与平板研合,指示表在量块表面移动,并旋转基准轴,使量块表面与平板平行,记下读数。然后将零件转180°,当量块的另一面与平板平行时记下指示表的第二次读数。二次读数差的1/2即是槽对轴心线的不对称度误差△。 Shaft hole with positioning keyway asymmetry error, commonly used method of measurement in Figure 1: According to the actual slot width matching the appropriate amount of tightness, the reference axis on the v-shaped iron, v-shaped iron plate with the research, The gauge moves over the gauge block and rotates the datum axis so that the gauge block faces parallel to the plate and notes the reading. Then turn the part 180 °, and when the other side of the equivalent block is parallel to the plate, note the second reading of the indicator. Half of the second reading difference is the groove on the axis of the asymmetry error △.