正时齿轮的角度指标主要是指正时齿轮上正时记号所在的齿或齿间的中心线与键或定位销中心线的夹角偏差。在测量正时齿轮角度指标时,一般情况下使用专用检具测量.但对用户随时投诉送来的不同规格的产品,在没有专用检具的情况下该如何测量呢?下面介绍一种采用万能工具显微镜测量正时齿轮角度指标的方法。 首先,将分度台装在主显微镜下的纵向滑台的基准面上,采用投影法,调节焦距,测出正时齿轮的孔径,因被测齿轮孔径存在椭圆度,需记下测量方位,取下齿轮,桶整焦距旋钮,让圆分度台的十字交线对准目镜中的米字线中心,然后移动横向滑台(前或后)于一个被测齿轮孔的半径值,再将刚测过的齿轮按 The timing index of the timing gear mainly refers to the angle deviation between the center line of the tooth or the tooth where the timing mark on the timing gear is located and the centerline of the key or the positioning pin. In the measurement of timing gear angle index, the general use of special gages measurement, but the user complaints at any time sent different specifications of the product, in the absence of special gages in the case of how to measure it? Here is a universal Tool Microscope Method for Measuring Timing Angle of Timing Gear. First of all, the indexing stage mounted on the main microscope under the longitudinal slide reference plane, the projection method, adjust the focal length, measured the timing gear aperture, the measured gear aperture exists ovality, the need to note the measurement orientation, Take off the gear and barrel and adjust the knob so that the cross line of the circle indexing table is aligned with the center of the rice word line in the eyepiece and then move the horizontal slide (front or back) to the radius value of a gear hole under test Just measured the gear press