【正文】
進(jìn)一步的掌握,對(duì)控制系統(tǒng)的分析與設(shè)計(jì)有了切身的認(rèn)識(shí)和深刻的體會(huì),并在學(xué)習(xí)和實(shí)踐過(guò)程中增長(zhǎng)了知識(shí)、豐富了經(jīng)驗(yàn)。控制系統(tǒng)的開(kāi)發(fā)設(shè)計(jì)是一項(xiàng)復(fù)雜的系統(tǒng)工程,必須嚴(yán)格按照系統(tǒng)分析、系統(tǒng)設(shè)計(jì)、系統(tǒng)實(shí)施、系統(tǒng)運(yùn)行于調(diào)試的過(guò)程來(lái)進(jìn)行。系統(tǒng)的分析和設(shè)計(jì)是一項(xiàng)既復(fù)雜又辛苦的工作,同時(shí)也是一個(gè)充滿樂(lè)趣的過(guò)程,在設(shè)計(jì)過(guò)程中,要邊學(xué)習(xí),邊實(shí)踐,遇到新的問(wèn)題就不斷探索和努力直到問(wèn)題得到解決。在設(shè)計(jì)中,體會(huì)到理論必須和實(shí)際相結(jié)合。雖然收集了大量的資料,但在實(shí)際應(yīng)用中卻有很多差異,出現(xiàn)了許多意想不到的問(wèn)題。許多問(wèn)題都是書(shū)本上是這樣,而在實(shí)際運(yùn)用中卻很不一樣,在經(jīng)過(guò)多次分析修改后,才設(shè)計(jì)出達(dá)到要求的系統(tǒng)。茂名學(xué)院本科畢業(yè)設(shè)計(jì):某潤(rùn)滑油小包裝生產(chǎn)線旋蓋機(jī)機(jī)械及控制系統(tǒng)設(shè)計(jì)致謝本課題在選題及研究過(guò)程中得到蔡業(yè)彬老師的悉心指導(dǎo)。蔡老師在后來(lái)的研究進(jìn)程中為我指點(diǎn)迷津,幫助我開(kāi)拓研究思路,精心點(diǎn)撥、熱忱鼓勵(lì)。感謝鄧昌奇老師、喬?hào)|凱老師、黃崇林老師、陳英俊老師等對(duì)我的教育培養(yǎng)。他們細(xì)心指導(dǎo)我的學(xué)習(xí)與研究,不僅授我以文,而且教我做人,雖歷時(shí)三載,卻給以終生受益無(wú)窮之道。對(duì)各位老師的感激之情是無(wú)法用言語(yǔ)表達(dá)的。在此,我要向諸位老師深深地鞠上一躬。感謝我的同學(xué)梁植揮、吳榮鸝、劉仕靈在課題研究中對(duì)我的幫助,以及其三年來(lái)對(duì)我學(xué)習(xí)、生活的關(guān)心和幫助。最后,向我的父親、母親、姐姐致謝,感謝他們對(duì)我的理解與支持。參考文獻(xiàn)[1] [J].包裝工程,2000(3).[2] [J].輕工機(jī)械,1999(3).[3]郭敬孫, [M].上海市包裝技術(shù)協(xié)會(huì)包裝機(jī)械委員會(huì),1987.[4] [M].北京:化學(xué)工業(yè)出版社,2005.[5]唐偉強(qiáng), [J],糧油加工與食品機(jī)械,2000(1).[6](第二版)[M].北京:機(jī)械工業(yè)出版社,1999(9).[7] [M]. 航空工業(yè)出版社,1997[8] [M].清華大學(xué)出版社,2005(6).[9] [M].機(jī)械工業(yè)出版社,2005(11).[10]鐘肇新,(第二版)[M].廣州:華南理大學(xué)出版社,2003(5).[11](PC) [M]. 上海交通大學(xué)出版社,1988[12] [M]. 北京機(jī)械工業(yè)出版社,1996[13] [M]. 北京清華大學(xué)出版社,2002[14] [M]. 北京機(jī)械工業(yè)出版社,2004[15]、應(yīng)用、實(shí)驗(yàn) [M]. 北京:中國(guó)輕工業(yè)出版社,2003[16] [M].北京:國(guó)防工業(yè)出版社,2003.[17] [M].北京:高等教育出版,2001[18] [M].機(jī)械工業(yè)出版社,2006[19] [M].西安電子科技大學(xué)出版社,2006[20]張偉安, [J].輕工機(jī)械,2002(2).附錄:Numerical control machineDigital control machine is used digital code forms of information (instruction), control tool according to the given velocity and working procedures, automatic processing machine to track, nc machine tools.featuresCNC machine has extensive adaptability, objects changed only need to change the program instruction。 input Processing performance than the general automatic machine, high precision machining factors, can be suitable for processing and small batch, high accuracy and frequent flow, shape and plex workpiece, and can obtain good economic results.Along with the development of numerical control technology, the machine adopts CNC system, increasing variety lathes, milling, boring, grinding, drilling, gear cutting machine tools and electric spark machine tools, etc. In addition, can automatically change in one of the many process card processing center, turning centers, etc.Development historyIn 1948, the United States pasonce pany accept entrust us air propeller blades, airplane outline model processing equipment. Due to the plex and varied shapes, template, high precision machining equipment to general, and put forward the idea of puter controlled machine tools. In 1949, the pany at the Massachusetts institute of technology (MIT) servo laboratory, CNC, and began to study in 1952 successfully trialproduced by large vertical copy the milling modification of three coordinates CNC milling machine, soon started production, in 1957 formally put into use. It is in the process of development of manufacturing technology, marks an important breakthrough in nc machining era. Nc machining is the foundation of modern manufacture technology, this invention for manufacturing industry, has epochmaking meaning and farreaching influence. The world39。s major industrialized countries attach great importance to the nc machining technology research and development.When using the numerical control equipment, ponents, huge tubes, only expensive in aviation industry minorities with special needs to face parts processing factors department, In 1959, made a transistor devices and printed circuit boards, nc equipment into the second generation, smaller, cost is decreased。 Since 1960, relatively simple and economic position control CNC drilling machine, and linear control CNC milling machine, the rapid development of CNC machine in mechanical manufacturing departments obtain promotion gradually. China started in 1958, developed successfully trialproduced a CNC valve of the numerical control system with CNC machine, 1965 started mass production of CNC system with transistor three coordinates nc milling machine.In 1965, third generation of integrated circuit, control devices, small size, power consumption, and reliability, the price drops further, promote the nc machine tools and the development of production. At the end of the 1960s, successively appeared by puter directly control tool machine direct numerical control system (hereinafter referred to as DNC), also called the group control system, Using small puter control puter numerical control system (hereinafter referred to as CNC control unit), which entered into the characteristics of small puters in the first generation.In 1974, successfully developed using microprocessor and semiconductor CunZhuQi microputer control devices (hereinafter referred to as newsun focus), this is the fifth CNC system. Fifth, pared with the third generation of numerical control equipment, function doubled in volume is reduced to the original 1/20, lower prices for 3/4 and reliability have greatly improved.In the early 1980s, with the puter software and hardware technology development, the manmachine dialogue to automatic programming of CNC. The numerical control equipment installed in miniaturization, can directly on the machine, The automation of CNC machine, automatic monitoring and further enhance the tool breakage and automatic detection workpiece etc. Function.In China39。s development present situationThese countries in eastern Europe, machine manufacturing varieties grown in China, and lack of machine industry through these years of development, has large scale, product efficience, CNC varieties from hundreds of development to nearly 2,000 species, the industry development of new products, the market need to fill the domestic blank. A high precision, high speed, high efficiency, a more intelligent, coordinate, posite, a big norms, largetonnage, large size of CNC machine new products meet the national key users needs. At present, China39。s machine industry is through the readjustment of industrial structure, product structure, improve the ability of independent innovation, development, change from t