我厂生产的汽车前轴（图1）在用户中享有很高声誉,但在前轴的落差h检测时,测量误差较大。由于前轴的钢板座平面与主销孔端面形成两个角度,即内倾角γ及转向角β。而产品图样要求的落差h为钢板座平面至主销孔端面空间点（主销孔中心）的距离,很不易测量。 以前用量观测量落差h,不能测出实际值,而且由于量规尺寸太大,笨重而且易变形,影响测量的准确度。因此我们设计了一种角度量块（图2）来测量h的尺寸。测量时将前轴置于检验平台上的两个等高方箱上,定位销1装入主销孔中,并将刻线（图3）对正两主销孔连线,此时量块2测量面与平台平行,可直接测量。实测值经高度尺寸换算即可得出较精确的h值,使用方便,快捷。 量块2原加工时,分成γ及β角两次加工,既慢 The front axle of the car (Figure 1) produced by our factory enjoys a high reputation among the users. However, when the drop of the front axle h is detected, the measurement error is larger. As the front axle steel plate plane and the main pin hole end face to form two angles, namely, the tilt angle γ and steering angle β. The product design requirements gap h is the distance from the plane of the steel plate to the end of the main pin hole space (the center of the main pin hole), which is not easy to measure. The previous observation of the amount of drop h, can not measure the actual value, and because the gauge size is too large, bulky and easily deformed, affecting the accuracy of measurement. So we designed an angular measurement block (Figure 2) to measure the size of h. When measuring, place the front axle on the two equal height square boxes on the inspection platform. The dowel pin 1 is inserted into the king pin hole and the engraved line (Figure 3) is aligned with the two king pin holes. At this moment, 2 measuring surface parallel to the platform, can be measured directly. Measured by the height of the size conversion can be obtained more accurate h value, easy to use and fast. The original block 2 processing, divided into two processing γ and β angle, both slow