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介绍了作者研究的以MEX68000ECB单板机作为主控装置、旋转变压器作为位置检测元件、SCR-D为驱动执行装置、机床滑台为控制对象的机床位置半闭环控制系统,以及所进行的探讨性工作。本文所设计的脉宽调制旋转变压器位置检测单元分辨率达0.65μm,属高分辨率测量环节。本文在建立了整个控制系统数学模型的基础上,用离散分析及仿真计算对控制系统进行了研究。联调系统达到了满意的快速性、平稳性及控制精度。最后提出了进一步提高控制精度的措施。
The semi-closed loop control system of machine tool with MEX68000ECB single-board computer as main control device, resolver as position detection component, SCR-D as drive actuator and machine slide as object of control are introduced. jobs. In this paper, the design of pulse-width modulation resolver position detection unit resolution of 0.65μm, is a high-resolution measurement session. Based on the establishment of the mathematical model of the whole control system, this paper studies the control system by discrete analysis and simulation. Coupling system has reached a satisfactory rapidity, stability and control accuracy. Finally, the measures to further improve the control accuracy are put forward.