在万能工具磨床上磨削图1所示的角度样板时,因控制斜面交点尺寸(L)较为困难,必须边磨边测,但又不能取下来测量。这时可用一个光滑圆柱以光隙法进行测量,只要三个平面都和圆柱表面相切,L尺寸即可控制在0.01毫米以内。圆柱直径D的大小,根据2α的大小可从图2和图3的几何关系求得。 Grinding the universal tool grinder shown in Figure 1, the angle of the sample, the control of the intersection point size (L) is more difficult, it must be edging test, but can not remove the measurement. In this case, a smooth cylinder can be measured by the Gap method. As long as all three planes are tangent to the cylindrical surface, the L dimension can be controlled within 0.01 mm. The size of the cylinder diameter D can be obtained from the geometrical relationship of FIG. 2 and FIG. 3 according to the size of 2α.