最新機(jī)械設(shè)計(jì)制造及其自動(dòng)化畢業(yè)設(shè)計(jì)外文翻譯(文件)
【正文】 ed of the workpiece transmission system and control system, a set of automatic machine and auxiliary equipment in accordance with the process sequence, pletion of all or part of the manufacturing process production system, automatic line for short. The 20th century 20 s, as car, rolling bearings, small motor and sewing machines and other industrial development, machinery manufacturing industry began to appear in automatic production line, the first is the modular machine tool automatic line. In the 1920 s, first appeared in the automotive industry running water production line and semiautomatic production lines, and then developed into the automatic production line. After the second world war, in the machinery manufacturing industry in developed countries, the number of automatic production line has increased dramatically. Adopt the products of the automatic production line should be large enough, the product design and technology should be advanced, stable and reliable, remained largely unchanged for a long time. Automatic line for large, mass production can improve labor productivity, stability and improve product quality, improve labor condition, reduce the production area, reduce the production cost, shorten production cycle, guarantee the production of balance, significant economic benefits. Automatic production line of an intervention in a specified program or mand automatic operation or control of process, our goal is to be stable, accurate and fast. Automation technology is widely used in industry, agriculture, military, scientific research, transportation, business, health, services, and family, such as automatic production line can not only make people from heavy manual labor, parts of mental Labour and bad, dangerous working conditions, can expand human organ function, greatly improve the labor productivity, improve the ability of people to know the world, can change the world. Below I say under its scope of application: In mechanical manufacturing casting, forging, stamping, heat treatment, welding, machining and mechanical assembly, automatic line, also to have the process including different properties, such as blank manufacturing, machining, assembly, testing and packaging of integrated automatic line. Processing and automatic line fastest growing, most widely used machinery manufacturing. Mainly includes: used for processing box, shell, all kinds of parts, such as the bination machine tools automatic line。順序控制設(shè)計(jì)法的基本思想是將系統(tǒng)的一個(gè)工作周期劃分為若干個(gè)順序相連的步,用編程元件(例如存儲(chǔ)器位M)來(lái)代表,在任何一步內(nèi)各輸出量的狀態(tài)不變。 PLC控制在上料單元中,檢測(cè)磁開(kāi)關(guān)、位置缸材料盤(pán)沒(méi)有光電開(kāi)關(guān)的工件,傳輸擁塞檢測(cè)傳感器和控制按鈕,PLC,總共14個(gè)輸入終端接收信號(hào)。一個(gè)工作循環(huán):氣爪閉→氣爪開(kāi)→升降缸升→平移缸進(jìn)→氣爪閉→平移缸退→擺缸180176。直到兩個(gè)菜沒(méi)有工件,材料板停止轉(zhuǎn)動(dòng)。當(dāng)工件將達(dá)到位置,光電開(kāi)關(guān)檢測(cè)工件的存在,然后系統(tǒng)提供本單位圓盤(pán)材料工件的信號(hào)。有手動(dòng)和自動(dòng)兩種操作方式。自動(dòng)上料站的功能是為其它工作站提供工件。自動(dòng)生產(chǎn)線的發(fā)展方向主要是提高生產(chǎn)率和增加通用性和靈活性。控制系統(tǒng)有其“停止”控制功能、停車、傳送機(jī)在正常工作條件下需要完成一個(gè)工作循環(huán),每個(gè)機(jī)床的運(yùn)動(dòng)部件上停車后回到原來(lái)的位置。適應(yīng)的要求自動(dòng)生產(chǎn)線的調(diào)試和正常運(yùn)行,控制系統(tǒng)有三種工作狀態(tài):,
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