在机械制造中,外径千分尺的测力大小,对于机械制造中测量工作的准确性,有着很大的关系。我们根据检定工作的需要,自制了一种简便可行的测力检定器。它由筒体5,弹簧4,止动螺钉3,顶盖2,测杆1和专用测头6组成。外径千分尺检定规程中规定:千分尺测量范围等于或小于300毫米时,测力应为600～1000克,测量范围大于300毫米时,测力应为800～1200克。测 In mechanical manufacturing, the measurement of the outer diameter micrometer size, the accuracy of the measurement work in the manufacture of machinery has a great relationship. According to the verification work, we made a simple and feasible dynamometer. It consists of a cylinder 5, a spring 4, a set screw 3, a top cover 2, a measuring rod 1 and a special probe 6. Outer diameter micrometer test procedures specified: micrometer measuring range equal to or less than 300 mm, the force should be 600 to 1000 grams, the measurement range is greater than 300 mm, the force should be 800 to 1200 grams. Measurement