【導讀】課題：基于PLC的Z3040搖臂鉆床控制系統(tǒng)設計。完成日期：2020年5月

　　

【正文】 用 PLC對機床控制系統(tǒng)進行改造后，簡化了控制線路，維護方便，降低了設備運行的故障率，提高了設備運行的穩(wěn)定性及使用率。 30 小 結 這次畢業(yè)設計是對我在畢業(yè)之前的最后一次綜合性的考核 ,它全面考察了自己三年來各學科知識間的綜合應用 ,是對自己的一次綜合能力的全方 面檢閱。 本設計是在指導老師的悉心指導下完成的 ,并且在其中查閱了大量的技術資料和參考文獻。通過這次設計使我對 PLC 知識有了更全面的了解。設計中還接觸到了一些關于 PLC 基本硬件和軟件 問題，體會到 可編程的 優(yōu)越性和在當今社會起到的越來越重要的工業(yè)地位，越來越被各國所認同。當然，通過這次設計我也對 PLC 基本設計 有了更深的了解?？傮w來說，通過這次設計我學到了很多知識，在老師的指導中也受益匪淺。 在此，我向指導老師和在設計期間給我諸多建議和幫助的同學們表示衷心的感謝！ 31 參考文獻 1.《工廠電器控制技術》 殷建國 北 京：經濟管理出版社 2020 公司， SIMATIC S7200 可編程控制器系統(tǒng)手冊。 1999 3.《西門子 S7200 系列 PLC 應用與開發(fā)》 戴仙金 水利出版社 2020 4.《西門子 S7200 工程應用實例分析》 程玉華 北京：電子工業(yè)出版社 2020 5.《案列解說 PLC、觸摸屏及變頻器綜合應用》 陳浩 中國電力出版社 2020 6.《西門子 PLC 編程技術及工程應用》 柴瑞娟 機械工業(yè)出版社 2020 7.《可編程序控制器及其應用（第 2版）》 王國海 北京：勞動社會保障出版 社 2020 8.《電器控制與 PLC》 丁學恭 浙江大學出版社 2020 9.《機床電路原理與維修》 熊幸名 人民郵電出版社 2020 10.《可編程控制器 PLC 應用技術與實列》 袁伍光 華南理工大學出版社 2020 32 英文翻譯 China is the world39。s first mechanical development of one of the countries. In ancient China there are many aspects of mechanical invention, the driving force in the use of mechanical and structural design has its own characteristics. Many of the mechanical design and special applications such as vehicle guidance and the earth was moving in the instrument and incense burner, and so on, are unique. 5000 BC, the Chinese appear primitive tools of arable land Lei Si. This is the first in the history of China National Machinery and mechanical. Over time, ancient Chinese metalworking techniques to start germination, then gradually mature and skilled. Shang and Zhou dynasties, such as the simple bronze forceful, fine bronze of the Spring and Autumn Period sophisticated form of ancient Chinese bronzes unique style. Have been found in the earliest Chinese bronzes, such as Gansu Dongxiang Majiayao unearthed copper knives, had lapsed since 4800 About history. China has about 40 to 50 million years ago, has emerged processing crude scrapers, choppers and three sharp prismlike device, such as primitive tools. 4 to 5 million years ago, grinding technology, a number of stone tools have been relatively smooth, also a sharp edge, as well as singleblade, doubleedged, convex edge, concave edge and a round of subedge. China 28,000 years ago in the bow and arrow, this is the first of the mechanical aspects of an invention。 8000 BC to 2800 before during a round of the Tao (with ceramic table)。 tools appear in about 6000 BC to before 5000, with the exception of Stone knives, there are stone hoe, shovel rock, stone sickle, sickle mussels, bone and bone sickle Si. Stone axes and knives have been used on the hard sand grinding from the hole. Xia Xia ago and has not appeared in the Quan spoke and wheel spokes are。 the Shang and Western Zhou Dynasty, there was quite a sophisticated twowheelers。 canoe and raft, and other water transport has long been emerging one after another. The late Neolithic Age, people have been able to Dan Fan Fan and mud casting of simple tools and weapons. Business Yin period, with the development of handicraft production and technical level, forming a brilliant bronze culture. Bronze metallurgy technology is highly developed, and bronze casting SECRETARY mother FANG Ding E, weighing 875 kg, bronze castings of the Spring and Autumn Period Cenghou Yi Pan statue has been very fine. WEI Han to the Spring and Autumn Period (770 BC265 AD) is the ancient Chinese machinery to start a period of rapid development. Spring and Autumn Period and pig iron metallurgy technology began to emerge。 malleable iron black and white heart malleable iron and steel appearance, accelerated by the Iron Age to the Bronze transition。 Spring and Autumn since the midinvented lost wax casting and low melting point solder alloy casting technology 。 The Warring States period, there has been stacked, such as casting and cable casting process。 the midWestern Han Dynasty have been a gray cast iron smelting, and there have been 3 to 5 mm in wall thickness of the thinwalled cast iron pieces. Cast iron 33 heat treatment technology development. Spring and Autumn Period crossbows appear to control the fire Nuji has a more ingenious mechanical devices. To the Han Dynasty, Nuji processing accuracy and surface finish has reached a very high level. Han crossbow with a ten stone to stone, and so on eight standards, these specifications indicate that the formation of machine building standards in the Han Dynasty have been initially established. Nuji to conduct their left, the blacksmith, mill workers, and other names. The spread of the Warring States period, Kao Gong Ji is the earliest existing crafts monographs, which have wheels in mind the manufacturing process. The stretch of the bow, arrows and speed of flight, have made the stability of the indepth exploration. Han has been a large number of various types of ships and three or four layers of the cabin floor boat. Some ships have been equipped with a rudder stern and efficient tool to promote the anizations. When was the Western Han Dynasty incense burner in the delicate structure, no matter how the ball rolling incense burner, the center of the hemisphere of the furnace can keep the state level. The next is to drive traffic and machinery, in 1980 unearthed the tomb of the First Qin Emperor Tong Juma on behalf of the casting technology of that time, metal processing and assembly processes. After the Eastern Han Dynasty, there have been recorded drum cars and car guide. Hutchison, a car slowed drum gear system, through the subdrum sound of the bracelet reported to the mileage. Ma Jun of the three countries created guidelines addition to the car with gear drive, there are automatic onoff device, technically and recorded wins in a drum car financing. The invention of automatic onoff device on gear transmission system has been developed to a considerable