柴油机机体的形状较复杂,许多螺孔与平面的垂直度要求很高。过去,一些重要的螺孔,我们都放在Z35摇臂钻床上用机攻代替手攻。但由于摇臂钻床在刹车后主轴有位移现象,垂直度仍旧达不到要求,而且效率也很低。在小组技术人员、工人的集体努力下,自行设计制造了几种攻丝器,经过数十次的试验和将近一年的实际应用,证明效果很好,不但确保了产品质量, Diesel engine body shape is more complicated, many screw holes and the verticality of the plane demanding. In the past, some important screw holes, we are on the Z35 radial drilling machine instead of hand attack. However, due to the radial displacement of the radial drilling machine after the brake, the verticality still can not meet the requirements and the efficiency is also very low. With the collective efforts of team technicians and workers, several kinds of tapping machines have been designed and manufactured by ourselves. After dozens of experiments and nearly one year of practical application, the results prove that the results are very good, not only ensuring product quality,