【正文】 的保護(hù)特性曲線選用保護(hù)特性，并需對(duì)短路特性和靈敏系數(shù)進(jìn)行校驗(yàn),該設(shè)計(jì)選擇的是DZ4763。 三、軟件設(shè)計(jì) 以下的是系統(tǒng)的程序流程圖，其中整個(gè)程序的循環(huán)都是通過(guò)移位寄存器完成的，在下文對(duì)移位寄存器會(huì)有詳細(xì)的敘述。更換料倉(cāng)程序段：LD A S , 1 LD R , 1LD EU A AN S , 1 LD R , 1 LD EU A AN S , 1本段程序的根據(jù)循環(huán)段的中間繼電器M狀態(tài)控制料倉(cāng)的更換。 循環(huán)程序段由于較長(zhǎng)，在這就介紹下循環(huán)程序的核心指令：移位寄存器位（SHRB）移位寄存器位（SHRB）指令將DATA數(shù)值移入移位寄存器。N指定移位寄存器的長(zhǎng)度和移位方向（移位加 = N，移位減 = N）。該指令由最低位（S_BIT）和由長(zhǎng)度（N）指定的位數(shù)定義。 = V33 + ([14] 1 +4)/8 = V33 + 17/8 = V33 + 2 ，余數(shù)為1 = 在移位減（用長(zhǎng)度（N）的負(fù)值表示）中，輸入數(shù)據(jù)移入移位寄存器的最高位中，并移出最低位（S_BIT）。 在移位加（用長(zhǎng)度（N）的正值表示）中，輸入數(shù)據(jù)（DATA）移入移位寄存器的最高位中（由S_BIT指定），并移出移位寄存器的最高位。 初始化讀取貨物信息步進(jìn)電機(jī)工作 卸貨 復(fù)位 （與倉(cāng)庫(kù)信息通信，分配庫(kù)房位置）初始化程序：LD S , 1= R , 24， = 1， = 0。四、實(shí)驗(yàn)調(diào)試 在本實(shí)驗(yàn)設(shè)計(jì)的調(diào)試中我遇到過(guò)很多問(wèn)題，例如設(shè)備的故障、程序的錯(cuò)誤等等。 在單動(dòng)調(diào)試的時(shí)候，首先遇到的問(wèn)題就是閱讀程序這個(gè)難題。我使用STEP7軟件把兩站的PLC程序上載到上位機(jī)上，然后使用通信線分別連接到安裝站和分類站的PLC上，然后進(jìn)行程序狀態(tài)監(jiān)控，逐步調(diào)試。 其次的在分類站的調(diào)試中，我發(fā)現(xiàn)步進(jìn)電機(jī)無(wú)法運(yùn)作，整個(gè)程序不能上電。找到問(wèn)題以后，我們聯(lián)系到生產(chǎn)線的制造廠家，向他們購(gòu)買了新的步進(jìn)電機(jī)和相關(guān)的驅(qū)動(dòng)器。 之后還有一些系統(tǒng)靈敏度的問(wèn)題，例如安裝站的機(jī)械手使用的是吸氣閥吸附住小工件進(jìn)行運(yùn)輸，但是由于機(jī)械手的靈敏度問(wèn)題，在實(shí)際調(diào)試的過(guò)程中無(wú)法吸附；分類站中出貨的那個(gè)氣動(dòng)閥為瞬時(shí)動(dòng)作，速度過(guò)快，有些情況下貨物是沒(méi)有完全放入倉(cāng)庫(kù)中的，針對(duì)這個(gè)問(wèn)題，我專門在程序中加入了一個(gè)定時(shí)器T44，成功的解決了這個(gè)問(wèn)題。有了單動(dòng)調(diào)試的經(jīng)驗(yàn)我相信自己能夠完成的更好。 首先我通過(guò)通信端口連接，將S7300里面的程序上載到上位機(jī)中，在上位機(jī)里先熟悉程序的原理。在和老師的商討下，、。 知道這些繼電器的含義后，我將這些繼電器進(jìn)行編譯，很快就明白了聯(lián)動(dòng)調(diào)試的順序和原理。在本文中的一些圖片就是從組態(tài)軟件界面中截圖獲得的。這兩個(gè)軟件在工業(yè)生產(chǎn)中有著廣泛的應(yīng)用。從最初的茫然，到慢慢的進(jìn)入狀態(tài)，再到對(duì)思路逐漸的清晰，整個(gè)寫作過(guò)程難以用語(yǔ)言來(lái)表達(dá)。回想這段日子的經(jīng)歷和感受，我感慨萬(wàn)千，在這次畢業(yè)設(shè)計(jì)的過(guò)程中，我擁有了無(wú)數(shù)難忘的回憶和收獲。當(dāng)選題報(bào)告，開題報(bào)告定下來(lái)的時(shí)候，我當(dāng)時(shí)便立刻著手資料的收集工作中，當(dāng)時(shí)面對(duì)浩瀚的書海真是有些茫然，不知如何下手。在搜集資料的過(guò)程中，我認(rèn)真準(zhǔn)備了一個(gè)筆記本。然后我將收集到的資料仔細(xì)整理分類，及時(shí)拿給導(dǎo)師進(jìn)行溝通。在寫作過(guò)程中遇到困難我就及時(shí)和導(dǎo)師聯(lián)系，并和同學(xué)互相交流，請(qǐng)教專業(yè)課老師。4月底，論文的文字?jǐn)⑹鲆呀?jīng)完成。為了畫出自己滿意的電路圖，我仔細(xì)學(xué)習(xí)了Auto CAD的繪圖技術(shù)。方案中PLC接線、端子排結(jié)構(gòu)等等，都是是比較頭疼的問(wèn)題，在反復(fù)推敲，對(duì)比的過(guò)程中，最終繪制出最終的電氣原理圖。畢業(yè)論文的制作給了我難忘的回憶。這段旅程看似荊棘密布，實(shí)則蘊(yùn)藏著無(wú)盡的寶藏。在整個(gè)過(guò)程中，我學(xué)到了新知識(shí)，增長(zhǎng)了見識(shí)。在這次畢業(yè)設(shè)計(jì)中也使我們的同學(xué)關(guān)系更進(jìn)一步了，同學(xué)之間互相幫助，有什么不懂的大家在一起商量，聽聽不同的看法對(duì)我們更好的理解知識(shí)，所以在這里非常感謝幫助我的同學(xué)。在我的學(xué)業(yè)和論文的研究工作中無(wú)不傾注著老師們辛勤的汗水和心血。從尊敬的導(dǎo)師身上，我不僅學(xué)到了扎實(shí)、寬廣的專業(yè)知識(shí)，也學(xué)到了做人的道理。六、致謝 四年的艱苦跋涉，五個(gè)月的精心準(zhǔn)備，畢業(yè)論文終于到了劃句號(hào)的時(shí)候，心頭照例該如釋重負(fù)，但寫作過(guò)程中常常出現(xiàn)的輾轉(zhuǎn)反側(cè)和力不從心之感卻揮之不去。第一次花費(fèi)如此長(zhǎng)的時(shí)間和如此多的精力，完成一篇具有一定學(xué)術(shù)價(jià)值的論文，其中的艱辛與困難難以訴說(shuō)，但曲終幕落后留下的滋味，值得我一生慢慢品嘗。紀(jì)老師雖身負(fù)教學(xué)、科研重任，仍抽出時(shí)間，不時(shí)召集我和同門以督責(zé)課業(yè)，耳提面命，殷殷之情盡在諄諄教誨中。從初稿到定稿，紀(jì)老師不厭其煩，一審再審，大到篇章布局的偏頗，小到語(yǔ)句格式的瑕疵，都一一予以指出。我還要感謝學(xué)院的各位工作人員，他們細(xì)致的工作使我和同學(xué)們的學(xué)習(xí)和生活井然有序。他們是我生命中永遠(yuǎn)的依靠和支持，他們無(wú)微不至的關(guān)懷，是我前進(jìn)的動(dòng)力；他們的殷殷希望，激發(fā)我不斷前行。 讓我依依不舍的還有各位學(xué)友、同門和室友。能和相遇、相交、相知是人生的一大幸事。 我將繼續(xù)前行！七、參考文獻(xiàn)[1]Palanivel V，Zhu I)Q，Van Ooij W J． Nanopardcle—filledsilane films as chromate replacements for aluminum alloys[J]．Progress in Organic Coatings，2003，47(3)：384—392．[2]譚益智．柔性制造系統(tǒng)[M]．北京：兵器工業(yè)出版社，1996，PE5．11．[3]Pan G R ， Schaefer I) W ． M orphology and water barrierproperties of silane films on aluminum and silicon[J]．ThinSolid Fi1IUS，2006，503(1)：259—267．[4]MALEKI R A．Flexible manufacturing system[J]．the technology and management．Prentice Hall Inc。(2) reduce the space occupied, the cell is a simple copy of the (cell production line can be built in a day to plete), so no, they can simply remove and save space。(4) a reasonable bination of staff, ie the ability of employees to form a considerable cell, can give full play to the highest level of operational according to the capacity of each cell to give staff the appropriate reward, but also help promote healthy petition between cells.One mode of production: We have seen this kind of situation, a product of the total assembly time is less than 10 minutes, but it is tens of meters to be placed in a long line, while the assembly work by dozens of people to plete online, but each person39。s production of a stream in such a manner to achieve: the abolition of the machine between the car and, through a reasonable process arrangements and settings between machines skateboarding products in the machine room to a single advantage is that (1) greatly reduces the intermediate product inventory, reduce capital and site occupancy。 (3) occurs when the product quality problems,can timely information to the front of a large number of intermediate products to avoid obsolescence.A stream mode of production not only for mechanical processing, but also for product assembly use of flexible equipment: a flexible tube called a product (a plastic also has metal) began to be , many panies are outsourcing for the production of standard lines, but now a simple step by step by their own flexible production line assembly parison, the first flexible production line can be reduced 7090% of equipment investment, and secondly, does not require professional installation, the general staff to quickly plete the installation in a weekend, the third, when not removed at any time to improve the siteefficiency.Car production: We often see a product in the manufacturing process, the transfer from one line to another line, transfer tool is the on the process of moving and shifting load loss, someone has invented a car production line, that is, the car in Taiwan to plete all the assembly not only eliminates the need for the product line, and the handling and transfer load efficiency is line and changeline: According to the changes in production of a product, set the two production lines, one is to meet the minimum volume of fixed production line, the other is part of the changes to meet changes in production , the traditional fixedline production equipment being used, and flexible production equipment or methods to be used as a cell changes in production order to pletely reduce costs, changes in line in Japan, panies often hire service workers to respond to dispatch the zero, no refund can be at any Manufacturing is a general trend: the production line getting shorter, more simple, less investment in equipment。 production cycle is shorter and shorter, speed of deliveryfaster and faste