论文部分内容阅读
一、知识要求试题 1.是非题 (是画√,非画×,画错倒扣分;每题1分,共20分) (1)杠杆卡规只能作相对测量,而杠杆千分尺则既能作相对测量,又能作绝对测量。( ) (2)水平仪不但能检验平面的位置是否成水平,而且能测出工件上两平面的平行度。( ) (3)光学分度头是精密的测量,分度仪,铣工在加工工件时,常采用光学分度头来进行分度( ) (4)精密测量仪器是用作精密测量的,故这种仪器本身是没有误差的。( ) (5)检验主轴锥孔中心线径向圆跳动的简便方法是, 只要将百分表测头直接与锥孔孔壁某点接触,转动主轴进行检验。( )
First, the knowledge required test questions 1 is non-question (yes painted √, non-painting ×, draw the wrong points; each question 1 point, a total of 20 points) (1) leveraged card regulation can only be used for relative measurement, Can make relative measurements, but also for absolute measurement. (2) The spirit level not only can check the level of the plane, but also measure the parallelism of the two planes on the workpiece. (3) Optical indexing head is a precision measurement, indexing, milling workers in the processing of the workpiece, often using optical indexing head for indexing (4) precision measuring instruments are used for precision measurement, so The instrument itself is error free. (5) A simple way to test the radial runout of the centerline of the spindle taper hole is to simply turn the dial gauge probe into contact with a point on the bore of the taper hole and rotate the spindle for inspection. ()