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濰坊學(xué)院本科畢業(yè)設(shè)計(jì)
摘要
沖壓成形的沖壓件具有重量輕、厚度薄、剛性好和質(zhì)量穩(wěn)定等一系列優(yōu)點(diǎn)，沖壓設(shè)備被廣泛使用。但由于傳統(tǒng)的沖床控制采用接觸器、繼電器控制，手工送料的方式，所以往往存在著效率低、速度慢、精度不能保證、安全存在隱患等方面的一系列問題，雖然購置新的數(shù)控設(shè)備可以解決這一問題，但往往資金投入較大，小型企業(yè)難以承受，若能在保留原有機(jī)床的基本功能基礎(chǔ)上，對(duì)其進(jìn)行適當(dāng)?shù)母脑炫c改進(jìn)，不失為一種好的方法。一方面可以節(jié)約資金，另一方面也不會(huì)使原來的機(jī)床閑置浪費(fèi)，基于此種思想，我們對(duì)長治科達(dá)工貿(mào)公司生產(chǎn)餐盒的沖床進(jìn)行了全面改造，本文對(duì)設(shè)計(jì)的詳細(xì)過程進(jìn)行了全方面的論述。
本論文在內(nèi)容安排上首先介紹了題目的來源與意義及其相關(guān)的背景;系統(tǒng)方案的確定、總體的組成、設(shè)計(jì)思想與理論依據(jù)等;隨后對(duì)系統(tǒng)進(jìn)行了詳細(xì)設(shè)計(jì)，包括:張力控制設(shè)計(jì)、電氣控制主電路與輔助電路設(shè)計(jì)、PLC控制器的資源分配、電氣連接、軟件程序代碼的編寫、觸摸屏部分的連接方式、控制界面的設(shè)計(jì)等;最后對(duì)通訊接口與上位機(jī)程序進(jìn)行了詳細(xì)設(shè)計(jì)，包括PLC-觸摸屏-PC機(jī)的連接方式、通訊協(xié)議、以及詳細(xì)的通訊代碼等。
系統(tǒng)經(jīng)調(diào)試自運(yùn)行三個(gè)月以來，無論是在穩(wěn)定性、可靠性方面，還是在系統(tǒng)的精度與效率方面都有了很大的提高，同時(shí)節(jié)約了成本，降低了操作人員的勞動(dòng)強(qiáng)度與人身危險(xiǎn)系數(shù)，使系統(tǒng)的自動(dòng)化、現(xiàn)代化程度大大提高，本論文提出“PLC-觸摸屏-代機(jī)”的控制方式在工業(yè)自動(dòng)化控制中有一定的理論研究價(jià)值意義，控制過程的具體實(shí)施有較高的參考與使用價(jià)值，在同行業(yè)中有一定的推廣與應(yīng)用的實(shí)際意義。
關(guān)鍵詞：PLc 控制觸摸屏 自動(dòng)送料機(jī) 沖床改造
Abstract
The stamping workpiece has a series of advages with light weight,thin thickness, good rigidity and stable quality and so on . The stamping equipment has been widely used. But traditional punch control often adopts the contactor and relay control and the method of sending material by hand , so problem exit in low efficiency ,slow speed ,precision not being guaranteed and potential safety . Although purchasing the new equipment of numerical control may solve these problems. But the fund to be invested is greater, small company is hard to bear. It will be a good method if we can carry out proper transformation and improvement for the original machine tool without changing its basic functions, which will not only economize fund but also make good use of original machine tool. Based on this thought, overall transformation of the punch producing the meal box in CHANG ZHI Ke Da trade company has been carried out. This paper will elaborate the process of design in detail.
This paper first introduces the background related to it and the meaning and source of this title, the definition of systematic scheme, overall composition and design thought and theoretical basis; then it carries out detailed design which includes tension control design, electrical control main circuit and supplementary circuit design , the resource allocation of PLC controller , electrical connection , software program code, the connected way of touch-screen, the design of control interface and etc; finally as for communication interface and last position machine it carries out detailed design that includes the connected way of “PLC-touch-screen-personal computer”, communication agreement as well as detailed communication code.
Running for three months, the debugged system has got great raising not only in stability and reliability but also in system’s precision and efficiency, at the same time it has economized cost, reduced the personal risk factor and efficiency, at the same time it has economized cost, reduced the personal risk factor and labour intensity and largely raised automatization and modernization of the system,.The control way “PLC- touch-screen-personal computer” put forward in this paper has the certain theoretical research value in industry and the control process has higher reference and use significance and has certain popularization and actual meaning of application in the field of industry.
Keywords: PLC；controls touch-screen；send material machine；punch transformation
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