高速主轴在线动平衡控制策略与实验研究

针对高速主轴机械式电机驱动平衡装置存在错调、平衡时间长等对主轴旋转精度造成的破坏问题,采用影响系数法无线控制在线动平衡作为试验调控手段,并提出解决方法。搭建实验平台,利用平衡装置在手动平衡的条件下多次实验,针对质量块移动方式总结出质量块移动策略,并对该移动策略进行仿真和实验验证,通过实验效果选出最佳移动方案。结果表明:该移动策略设计合理,可准确调整质量块,平衡时间短,达到预期效果;利用影响系数法对主轴在线动平衡,振幅降低明显,平衡精度、效率提高,为高速机械主轴在线动平衡调控提供依据。

High Speed Spindle Online Dynamic Balancing Control Strategy and Experimental Research

In order to solve the spindle rotation accuracy deterioration which was caused by the wrong and long timely balancing when applying mechanical motor drive balancing device, the influence coefficient method under none-line control online dynamic balancing is applied and the solution is discovered. The experiment platform was erected. Many trials were done by using the balance device in a manual way. Discoveries of the balancing weights moving strategies were made, and simulations were also tested by experiments. Given the final moving outcomes, the best moving path was selected. Results indicate that the balancing weights design is reasonable, which can adjust the weights timely and cut balancing time. The final outcomes meet the expectation. The spindle amplitude is decreased significantly and the balance efficiency also improved by applying the online dynamic balancing method. Such achievements can hold an important meaning and provide regulation strategies for the online dynamic balancing control technique.