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当前,曲轴生产行业采用切入法磨削曲轴连杆轴颈,虽然提高了生产效率,但是出现条纹,降低了表面质量和精度。因此探讨它的成因,消除或减轻条纹是曲轴生产行业一个迫切需要解决的重要质量课题。在用切入法磨削过程中,连杆轴颈上出现的条纹可能是由于:1.机床结构或部件因激振力作用而引起的强迫振动,通常与砂轮不平衡和砂轮主轴的径向跳动有关。2.磨床—工件—砂轮系统的自激振动,是切削作用自身形成的内力所引起的,不存在任何外力。当自振一形成,它将继续
Currently, the crankshaft production industry using the method of cutting into crankshaft connecting rod journal, although increased production efficiency, but the presence of stripes, reducing the surface quality and accuracy. Therefore, to explore its causes, to eliminate or reduce streaks is an urgent need to solve the quality problem in the crankshaft production industry. In the cutting method with the grinding process, rod streaks appear may be due to: 1. Machine structure or components due to the role of excitation force caused by forced vibration, usually with the wheel unbalance and radial spindle runout related. 2. Grinder - workpiece - grinding wheel system of self-excited vibration, the cutting force is the internal force caused by its own, there is no external force. As the natural vibration forms, it will continue