用于发动机曲轴的全自动平衡修正系统的设计研究

Study of Automatic Dynamic Balancing System for Engine Crankshaft

为提高目前国内曲轴生产制造的动平衡效率、精度和自动化程度,研究一种全自动平衡修正系统方案。对系统的总体架构进行了阐述,从机械与驱动和测量与控制两方面归纳了系统必须考虑的问题,其中包括平衡测试机及驱动、托起及转向装置、钻削去重装置、排屑、测控系统架构、控制器选择、振动信号处理、信号处理算法、数学模型、自动对刀方法和顺序控制等。制作了样机,进行了实验验证。实验数据表明该全自动平衡修正系统方案是成功的。

In order to improve the dynamic balancing efficiency, accuracy and the automation of the crankshaft for the inland manufacture, an automatic dynamic balancing scheme is studied. Form the viewpoint of the system, the key problems that should be considered is summarized, which include .the balancing test unit and driving system, the support-up and rotating unit, the drilling unit, the scraps dis- posal unit, the control system structure, the controller, the analogue and the digital signal process, the mathematic model, the cut positioning method, the sequence control method and so on. The prototype machine is developed. And the experimental results prove that the scheme is successful.