旋片式真空泵的各主要零件──定子、转子、旋片和端板等的形位公差是很重要的,不亚于尺寸公差和光洁度要求。然而检验形位公差不如检验尺寸公差和光洁度那样方便的利用现成通用工具来进行,往往需要专用工具或加上辅助工具才能进行检查。现将几种适合于旋片泵零件的简便方法(这 The main components of a rotary vane vacuum pump - the geometric tolerances of the stator, the rotor, the rotary vane and the end plates, are important, as much as the dimensional tolerances and finish requirements. However, inspection of geometric tolerances is not as convenient as inspection of dimensional tolerances and finishes using readily available common tools, often requiring special tools or aids to perform inspections. Several convenient methods for rotary vane pump parts are now available