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曲轴是发动机重要的零部件之一 ,加工难度较大 ,其中有一项重要的指标就是要保证同一根曲轴的主轴颈各尺寸及连杆轴颈各尺寸相一致。我厂生产的某曲轴产品的主轴颈和连杆轴颈尺寸如图 1所示。目前 ,基本上都是采用外径千分尺对其进行测量。普通的外径千分尺测量误差较大 ,用不
Crankshaft is one of the important parts of the engine, machining more difficult, of which there is an important indicator is to ensure that the same crankshaft main journal of each size and connecting rod shaft of the same size. I produced a crankshaft product crankshaft and connecting rod journal size shown in Figure 1. Currently, they are basically measured using an outer diameter micrometer. Ordinary diameter micrometer measurement error is larger, do not use