我厂是生产柴油机、汽油机和摩托车凸轮轴的专业厂家。在凸轮轴的加工中,键槽对称度的测量很麻烦。需检测员在光学分度头上用百分表来回拉动多次找平,然后反转180°再拉平,从百分表上读出差值,计算出对称度,精度差,效率低。我用报废的千分尺改制了一个专用量具,专测该零件的对称度、平行度.使用简单方便,效果很好,见图示。 I plant is the production of diesel engines, gasoline engines and motorcycle camshaft professional manufacturers. In the machining of camshafts, the measurement of the keyway symmetry is troublesome. Need to inspectors in the optical indexing head with a dial indicator back and forth repeatedly leveling, and then inverted 180 ° and then level, read out the difference from the dial indicator to calculate the symmetry, poor accuracy, low efficiency. I use a scrapped micrometer to rework a special measuring tool to measure the symmetry and parallelism of the part, which is easy to use and works well.