【摘要】 为了研究三轴联动系统控制与仿真问题 ,引入运动任务坐标系和相应的坐标变换特性 ,阐述了在任务坐标系下的轮廓加工问题 ,构造了能够解决在任务坐标系中轮廓跟踪问题的控制规律 ,依据控制规律建立了Simulink模型 ,并用算例进行检验。检验结果表明 ,与PID伺服控制器相比 ,三轴联动系统显示出更高的轮廓跟踪精度。建立的仿真模型可以为进一步研究和设计性能优良的控制系统提供手段。更多还原

【Abstract】 To make an investigation in the control and simulation of a tri-axial machine tool feed drive system, the motion task coordinate frame and corresponding coordinate conversion characteristic are introduced. The contour machining with the task coordinate frame is expounded, and the control rule for solving the contour tracking in the task coordinate frame is constructed. Simulink model is established based on the control rule, and it is checked with calculation examples. The check results show that, compared with PID servo controller, the tri-axial linked system has higher contour tracking accuracy. The simulation model established can provide means for further investigation and design of excellent control system.更多还原