曲轴车-车梳加工工艺分析及切削模拟实验研究

车-车梳工艺是现今汽车发动机曲轴主轴颈的粗、半精加工中广泛应用的切削工艺。以车-车梳工艺为研究对象,分析了车梳复合切削特性以及车-车梳加工工艺流程。并以一套自主改造的车-车梳数控机床和配套的刀具系统为实验平台,进行了车-车梳切削模拟实验,从轴颈圆度、表面粗糙度及轴颈侧壁表面粗糙度三个方面对加工质量进行了评估。实验数据及研究结果对国内曲轴加工工艺的改进和应用有一定的参考价值。

Analysis and Experimental Cutting Simulation Research on Turn-turn Chasing Process of Crankshaft

Turn-turn chasing process is widely used in the rough and semi-finish machining of crankshafts of modern vehicles. In this paper, taking the process as the research subject, the turn-turn chasing process and cutting characteristics was analyzed. Based on an experimental platform which includes a remolded CNC machine applied to turn-turn chasing process and a newly manufactured tool system, the simulated turn-turn chasing cutting experiment was conducted. Machining quality was evaluated in three aspects, the shaft collar roundness, surface roughness and shaft collar side wall surface roughness. Experimental data and the results of the study have a certain reference value for the improvement and application of domestic crankshaft processing.