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单角度斜孔(下简称斜孔)在机械制造中经常用到。其几何位置一般用孔的轴线与端面交点的坐标尺寸来标注。该尺寸的检测多采用平台圆柱法。现以图1所示的斜面与基面A的夹角为a_2,斜孔与斜面法线的交角为a_1的测量和计算为例。测量的方法是:在斜孔中插入半径为r的芯轴,芯轴与孔之间无间隙、不晃动,再将半径为R的标准圆柱体和斜面及芯轴同时紧密相靠,如图1所示。并需使圆柱体的轴心线与基面保持平行。建立平面直角坐标系xoy。并设:L_x、L_v为斜孔轴线与端面交点A的坐标,亦即它到两基面的垂直
Single-angle oblique hole (hereinafter referred to oblique hole) is often used in machinery manufacturing. Its geometric position is generally marked with the coordinate dimension of the intersection of the axis of the hole and the end surface. The detection of the size of the platform cylinder method. The angle between the bevel and the base A shown in FIG. 1 is a_2, and the measurement and calculation of the intersection of the bevel hole and the bevel normal is a_1. The measuring method is as follows: a mandrel with a radius r is inserted into the inclined hole, there is no gap between the mandrel and the hole, no shaking, and a standard cylinder with a radius of R and a bevel and a mandrel are in close contact with each other at the same time 1 shown. And make the cylinder’s axis parallel to the base surface. Create a Cartesian coordinate system xoy. And set: L_x, L_v oblique axis hole axis and the intersection of the coordinates of the A, that is, it is to the two base vertical