【正文】 t is tolerant of. New technique always for bringing more safe and convenient operation for us, make we a lot of problems for face on sweep but light, do you understand the HMI? Says 。 The saving machine can deposit the data that the I/ O input in the saving machine, and in work adjusting to bee tired to add the machine and I/ Os to connect, saving machine separately saving machine RAM of the procedure saving machine ROM and datas, the ROM can can do deposit of the data permanence in the saving machine, but RAM only for the CPU putes the temporary calculation usage of hour of buffer space. The PLC anti interference is very and excellent, our root need not concern its service life and the work situation bad, these all problems have already no longer bee the topic that we fail, but stay to our is a concern to e to internal resources of make use of the PLC to strengthen the control ability of the equipments for us, make our equipments more gentle. PLC language is not we imagine of edit collected materials the language or language of Cs to carry on weaving the distance, but the trapezoid diagram that the adoption is original after the electric appliances to control, make the electrical engineering teacher while weaving to write the procedure very easy prehended the PLC language, and a lot of non electricity professional also very quickly know and go deep into to the PLC. Is PLC one of the advantage above and only, this is also one part that the people prehend more and easily, in a lot of equipmentses, the people have already no longer hoped to see too many control buttons, they damage not only and easily and produce the artificial error easiest, small is not a main error perhaps you can still accept。s address and saving machine three big pieces to constitute, CPU core is from an or many is tired to add the machine to constitute, mathematics that they have the logic operation ability, and can read the procedure save the contents of the machine to drive the homologous saving machine and I/ Os to connect after pass the calculation。s machine bine, for resolve the very plicated problem to look for the best path We e in sight of the control that links after the electric appliances in various situation, that is already the that time generation past, now of after use in the mold a perhaps simple equipments of grassroots control that the electric appliances can do for the low level only。s labor strength, reduce the establishment on the personnel. The target control of the hard realization in many plicated production lines, whole and excellent turn, the best decision etc., welltrained operation work, technical personnel or expert, governor but can judge and operate easily, can acquire the satisfied result. The research target of the artificial intelligence makes use of the calculator exactly to carry out, imitate these intelligences behavior, moderating the work through person39。t satisfied with the current manufacturing industry foreground, also can39。 最后，我要向在百忙之中抽時間對本文進行審閱、評議和參加本人論文答辯 的各位老師表示感謝！ 石家莊鐵道大學四方學院畢業(yè)設(shè)計 23 參考文獻 [1] 史國生 .電氣控制與可編程控制器技術(shù) .化學工業(yè)出版社， ~18 [2] 王維義 .拓展舊機床數(shù)控化改造的市場 .中國機電工業(yè)， ~35 [3] 卜基橋 .讓老機床煥發(fā)青春 .現(xiàn)代制造， ~13 [4] 熊辜明 .機床電路原理與維修 .北京人民郵政出版社， ~9 [5] 高 偉 .西門子 $7200系列 PLC在舊機床上改造的應(yīng)用 .煤炭技術(shù)， ~5 [6] 方承遠 .工廠電氣控制技術(shù) .機械工業(yè)出版社， ~35 [7] Michel Logic Controllers:Architecture and Application . 48~49 [8] 高欽和 .可編程控制器應(yīng)用技術(shù)與設(shè)計實例 .北京人民郵電出版社， ~19 [9] . Programmabe Controllers: and Application..New York:MC . 8~11 [10] 袁任光 .可編程控制器應(yīng)用技術(shù)與實例 .華南理工大學出版社， ~44 [11] 陳立定 .電氣控制與可編程 序控制器的原理及應(yīng)用 .北京機械工業(yè)出版社， ~7 [12] 周恩濤 .可編程控制器原理及其在液壓系統(tǒng)中的應(yīng)用 .北京機械工業(yè)出版社， ~8 石家莊鐵道大學四方學院畢業(yè)設(shè)計 24 附 錄 附錄 A 外文資料 PLC technique discussion and future development Electronic Test Equipmentprinciples and Applications. Princeton University. America. Along with the development of the ages, the technique that is nowadays is also gradually perfect, the petition plays more more strong。本課題能夠成功的完成，要特別感謝我的指導老師的關(guān)懷和教導，也感謝各位同學的關(guān)心和幫助。 通過這次設(shè)計，在很高程度上彌補了我的理 論知識的不足，進一步鞏固了我們的理論知識，讓我學得更扎實，對PLC 的認識更加形象，在這里我還要感謝我的專業(yè)老師，是你們和我一起度過了緊張愉快的大學生活，這將是我人生中永遠值得回憶的一段美好時光。所以，我很用心的把它完成。此次 設(shè)計 T68 鏜床的 PLC 改造課題 不僅重溫了過去所學知識，而且學到了很多新的內(nèi)容。 石家莊鐵道大學四方學院畢業(yè)設(shè)計 22 致 謝 通過這一階段的畢業(yè)設(shè)計，我受益匪淺，不僅鍛煉了良好的邏輯思維能力，而且培養(yǎng)了棄而不舍的求學精神和嚴謹作風。 （ 3） 對 T68 鏜床控制系統(tǒng)改造進行安裝與調(diào)試，對調(diào)試中出現(xiàn)的問題進行了分析，提出了解決方案，并成功解決了問題。 （ 2） 設(shè)計了 PLC 的控制程序，介紹了 PLC 程序的設(shè)計方法，成功率高的經(jīng)驗設(shè)計的編程方法，并根據(jù)它設(shè)計了相應(yīng)的 PLC 程序。電動機 M M2 必須在 SP SP2 兩個都不閉合的情況下才能啟動。反之，將快速移動操作手柄向外拉時，壓合 SQ6（ X12），使 KM7（ Y7）通電吸合， M2 反向起動，實現(xiàn)快速反向移動。采用一臺快速移動電動機 M2 單獨拖動，通過不同的齒輪齒條等連接來完成各方向的快速移動，這些均由快速移動操作手柄控制。在按下停止按鈕 SB1（ X0）時，制動過程與正向反接制動相同。KM2常開觸點閉合自鎖→ SB1 松開后使 KM2 還通電， M1 繼續(xù)制動 ⑥ 當 M1 速度≤ 120r/min 時→ SRZ 常開觸點（ X15）斷開→ KM KM4 斷電→M1 停轉(zhuǎn)，制動結(jié)束。若按下停止按鈕 SB1（ X0），其常閉觸點先斷開， KA1（ M1）、 KT（ T0）、 KM1（ Y1）、 KM3（ Y3）和 KM5（ Y5）都斷電，使控制線路按以下動作進行反接制動。由于此時 KA2（ M2）、KM3（ M3）、 KT（ T0）都沒有通電，所以 M1 只能接成三角形進行低速轉(zhuǎn)動；松開按鈕 SB5 后，因電路沒有自鎖作用，而且 SB1（ X0）的常開觸點沒有閉合，則 KM2石家莊鐵道大學四方學院畢業(yè)設(shè)計 20 和 KM4 都失電，使 M1 停轉(zhuǎn)。 （ 5） 主軸反轉(zhuǎn)高速 將變速手柄扳在“高速”位置，使微動開關(guān) SHY（ X5）受壓而閉合，為 KT（ T0）和 KM3（ Y3）的工作做準備 ；當按下 SB3（ X2）時→ KA2（ M2）得電且自鎖→ KM3和 KT 都得電→ KM2（ Y2）得電， M1（雙速電動機）先低速反向起動；當 KT 延時（ 1s）后→ KT 的常閉觸點（ T0）斷開→ KM4（ Y4）失電 M1 停轉(zhuǎn)，同時 KT 的常開觸點（ T0）閉合→ KM5（ Y5）得電→ M1 接成雙 Y 形切換為高速運轉(zhuǎn)。由于 此時 KA1（ M1）、KM3（ Y3）、 KT（ T0）都沒有通電，所以 M1（雙速電動機）只能接成△形進行低速轉(zhuǎn)動；松開按鈕 SB4 后，因電路沒有自鎖作用，而且 SB1（ X0）的常開觸點沒有閉合，則 KM1 和 KM4 都失