汽车发动机凸轮轴测量方法设计的误区及其正误对策

Design Errors in Measurement Method and Countermeasure of Correction for Automotive Engine Camshaft

针对凸轮测量选择测量基准和确定测量位置方法中存在的问题进行了分析,并参照国家标准GB/T1182-2008的通则要求,从发动机凸轮升程和转角是非线性函数关系入手,论述了凸轮基准选择原则和确定凸轮测量位置(起始转角)的方法,以及对凸轮测量中的测头替换,测点布局等问题进行了分析。

Aiming at the problems existed in selected benchmarks for cam measurement and determining the location of measurement methods, analysis was proceed. By referring to the general requirements of national standards GB/T1182-2008, starting from the uplift of en- gine cam and the corner had a nonlinear function of relation, the principles in cam selection of benchmarks and methods to determine the cam mcasurement location （ starting corner angle） were expounded. Also analysis was done to problems at probe switching in cam measurements and distribution of measuring points.