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數(shù)控銑床工作臺仿真實驗系統(tǒng)的開發(fā) 摘要 本文主要是設(shè)計一套以MCS—51單片機為主控制器的數(shù)控銑床工作臺仿真實驗系統(tǒng)，首先對數(shù)控技術(shù)的發(fā)展作了分析和總結(jié)，探討了數(shù)控機床的開放化、智能化、高精度、高速度和網(wǎng)絡(luò)化的發(fā)展趨勢；著重分析了單片機數(shù)控系統(tǒng)的控制原理，指出了設(shè)計數(shù)控系統(tǒng)的一般方法和步驟，并闡述了MCS—51系列單片機的功能以及在機床數(shù)控系統(tǒng)中所發(fā)揮的作用；設(shè)計開發(fā)了系統(tǒng)機械結(jié)構(gòu)以及控制系統(tǒng)的I/O接口電路、步進電機驅(qū)動電路；通過編寫匯編程序，從而實現(xiàn)系統(tǒng)設(shè)計要求。開發(fā)的這套系統(tǒng)可以作為一套實驗室設(shè)備，對機床數(shù)控化改造、數(shù)控技術(shù)的教學和研究有深遠意義。 關(guān)鍵字： 單片機 銑床工作臺 步進電機 接口電路 匯編程序 The Simulating Experiment System for Numerical Control of Milling Machine’s Worktable Exploitation ABSTRACT In this article, a set of numerical control of milling machine worktable experiment system for teaching based on single chip microprocessor for MCS—51 is designed. First, the CNC system model and characteristics based on microcomputer and status of CNC in China are presented. The development trends about open architecture, intelligence, suppression, high speed and network of CNC are analyzed and explain the function of single chip microprocessor and their calling into play in the CNC, and controlling principle of single chip microprocessor for MCS—51. This article introduces the methods and steps of the digital control system design. Emphasis is given to I/O circuit, stepping motor drive and authorized assembler and carry out the system designing request. The system offer a set of equipment for teaching, and is designed for teaching as a set of experiment or has a great affect to the digital control reform of the machine tool. KEY WORDS: Single Chip Microprocessor; Worktable of Milling Machine; Stepping Motor, Interface Circuit, Assembler