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在零件的自动化检验过程中,为了检验零件上某些几何形状的尺寸,往往需要进行零件的定位。例如我厂一种零件小孔的气动检验,该零件上有三个小孔(图1),零件的一端有一个孔,另一端有两个孔,其孔径均为φ0.36~ (+0.06)。检验这一零件需定向,因此机械结构、电小孔,有两种方法:综合检气线路都较为简单,但这种验与定向检验。综合检验是综合检验不可避免的将使某根据流过三孔的总气流量的些特殊情况下造成误检。定大小来判断零件的质量情向检验虽可以避免在综合检况。这种检验方法,零件不验中所产生的误检,但须增加一套自动定向装置。设计一种具有逻辑功能的开关线路,可以在不使零件定向的情况下,进行定向测量。现将线路的设计概述如下:
In the parts of the automated inspection process, in order to test some of the geometry of the size of the parts, often need to locate the parts. For example, our factory aerodynamic inspection of a small hole in the part, the part has three holes (Figure 1), one end of the hole has a hole, the other end has two holes, the diameter of φ0.36 ~ (+0.06) . Inspection of the parts to be oriented, so the mechanical structure, electrical holes, there are two ways: Comprehensive gas detection lines are relatively simple, but this inspection and directional inspection. Comprehensive test is a comprehensive test will inevitably make some according to the total flow through the three holes caused by some special cases of false positives. The size of the parts to determine the quality of the test Although the situation can be avoided in the comprehensive inspection. This test method, parts do not experience the false positives, but the addition of an automatic directional device. Design a logic-capable switch circuit that allows directional measurements without orienting the part. Now the design of the line is summarized as follows: