凸轮轴是发动机的重要零件之一,它是推动发动机中的气门挺杆,使气门按时开关。凸轮轴经过长时期的使用后会发生磨损,修理时在焊补后会发生弯扭现象,因此凸轮的曲线和相互间的角也随着改变,使气门不能正常工作,这就须要进行修磨。凸轮轴的修磨一般要求较高,多半在专用的凸轮轴磨床上进行。我厂没有这种专用磨床,为了保证修磨的质量,在厂党委的领导下,采用三结合的办法,参照活塞仿型磨床与分度头的构造原理,利用旧 Camshaft is an important part of the engine, which is to promote the valve lifter in the engine, the valve on time switch. After a long period of use, the camshafts will wear out. When repairing, the crooked and torsion will occur after the welding is repaired. Therefore, the curves of the cams and the mutual angles also change to make the valve unable to work normally, which requires grinding . Sharpening the camshaft generally require higher, mostly in a dedicated camshaft grinding machine. I plant does not have this special grinder, in order to ensure the quality of grinding, under the leadership of the factory party committee, the use of three combinations, with reference to the piston profile grinder and sub-head structure principle, the use of old