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徐州工程學(xué)院畢業(yè)設(shè)計(jì)（論文）
摘要
由于工廠企業(yè)中很多磨床年代久遠(yuǎn)，其工作已遠(yuǎn)遠(yuǎn)達(dá)不到現(xiàn)代生產(chǎn)的要求。因此有必要對舊式的常規(guī)電動(dòng)機(jī)控制系統(tǒng)進(jìn)行技術(shù)改造，以可編程序控制器取代常規(guī)的繼電器，以達(dá)到磨床的自動(dòng)化控制。本文介紹了用可編程序控制器來對平面磨床控制系統(tǒng)進(jìn)行現(xiàn)代化改造，簡要敘述了老式成型平面磨床的工作原理及用PLC進(jìn)行改造設(shè)計(jì)的方法和設(shè)計(jì)步驟，并給出PLC編程程序梯形圖。改造后的磨床工作安全可靠，系統(tǒng)運(yùn)行情況良好，磨削精度更高；利用PLC控制磨床運(yùn)行，實(shí)現(xiàn)了磨床啟動(dòng)、停止、故障停止、緊急停止的功能，可根據(jù)運(yùn)行要求靈活切換磨床的控制方式；提供過載，輕載，斷相和電壓不平衡保護(hù)；現(xiàn)場顯示運(yùn)行狀態(tài)，實(shí)現(xiàn)智能化監(jiān)控。并因所吸工件的不同靈活調(diào)節(jié)電磁吸盤的電流，并且顯示數(shù)值大小。從而實(shí)現(xiàn)了磨床運(yùn)行的自動(dòng)化。PLC控制的特點(diǎn)使原機(jī)床控制大大的簡單化,并且維修方便,易于檢查。節(jié)省大量的繼電器元件,使機(jī)床的工作效率更高。該項(xiàng)技術(shù)還可推廣應(yīng)用于其他輔機(jī)設(shè)備或其他領(lǐng)域的自動(dòng)化控制改造中。?
關(guān)鍵詞 可編程序控制器；平面磨床；改造
Abstract
Because many grinder ages are remote in the manufacturing division, its work could not achieve the modern production by far the request . So it is necessary to carry on technological transformation to the old-fashioned regular motor control system and replace normal regulations by programmable preface controller of after electric appliances with attain grinding machine of automation control. This text introduced comes with the programmable controller to the surface grinding machine control system to make the modernized transformation, narrated the old style formation surface grinding machine's principle of work briefly and carries on the transformation design with PLC the method and the design procedure, and gives PLC the programming procedure trapezoidal chart . After the reformation of grinding machine work safety credibility, he systems operation situation is good, the grinding precision is higher; Using the PLC control grinder movement, realized the grinder to start, the stop, the breakdown to stop, the emergency stop function, might cut grinder's control mode nimbly according to the movement request; Provides the overload, the underloading, breaks and the voltage is not balanced protects; The scene demonstration running status, realizes the intellectualized monitoring. Because and attracts the work piece the different nimble adjustment magnet chuck electric current, and demonstration value size. Thus has realized the grinder movement automation. The PLC control's characteristic causes the original machine tool control big simplification, and services conveniently, easy to inspect. Saves the massive relay element, causes engine bed's working efficiency to be higher. This technology may also promote applies in other auxiliary engine equipment or in other domain automated control transformation.
Keywords Programmable logic controller Flat surface grinding machine Reformation
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目 錄
1 緒論 1
2 磨床的概述 3
2.1 磨床的介紹 3
2.2 世界平面磨床發(fā)展趨勢 3
3 可編程控制器的概況 5
3.1 PLC的產(chǎn)生和特點(diǎn)及其發(fā)展動(dòng)向 5
3.1.1 PLC的產(chǎn)生 5
3.1.2 PLC的定義 5
3.1.3 PLC的特點(diǎn) 6
3.1.4 PLC的發(fā)展趨勢 7
3.2 PLC的系統(tǒng)結(jié)構(gòu)和基本工作原理 8
3.2.1 PLC的系統(tǒng)結(jié)構(gòu) 8
3.2.2 PLC的系統(tǒng)結(jié)構(gòu)和基本工作原理 9
3.2.3 PLC的主要功能 10
3.2.4 PLC的應(yīng)用設(shè)計(jì)步驟 11
3.3 PLC的選型原則 12
4 系統(tǒng)的總體設(shè)計(jì) 15
4.1 改造平面磨床的步驟 15
4.1.1 改造方案的確定 15
4.1.2 改造的技術(shù)準(zhǔn)備 15
4.1.3 改造的實(shí)施 16
4.1.4 驗(yàn)收及后期工作 17
4.1.5 用PLC改造繼電-接觸式控制系統(tǒng)的步驟 18
4.2 控制線路控制改造要求 18
4.3 原設(shè)備電器的工作原理 19
4.3.1 平面磨床主要結(jié)構(gòu)和運(yùn)動(dòng)形式 19
4.3.2 電氣控制線路分析 20
4.4 分析控制對象，進(jìn)行系統(tǒng)的硬件設(shè)計(jì) 23
4.5 系統(tǒng)的軟件設(shè)計(jì) 24
5 性能測試與分析 27
結(jié)論 28
致謝 29
參考文獻(xiàn) 30
附錄 31
中文翻譯： 31
外文翻譯： 38
徐州工程學(xué)院畢業(yè)設(shè)計(jì)（論文）
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