本文選題：數(shù)控 + Simulink��； 參考：《昆明理工大學(xué)》2015年碩士論文

【摘要】：隨著大型工程項目和現(xiàn)代化制造的不斷發(fā)展,各領(lǐng)域用電需求越來越大,尤其是大型流水線生產(chǎn)企業(yè)等高耗能企業(yè)的出現(xiàn),作為對電能輸送的傳統(tǒng)電纜已經(jīng)無法滿足大電流輸送,母線作為一種配電導(dǎo)線應(yīng)運而生。母線在大電流傳輸時,導(dǎo)電性和安全性等方面體現(xiàn)出其優(yōu)越性。正是由于母線的廣泛使用,特別是在電力這種高危行業(yè)中對母線的工藝要求、安全性能越來越高。這樣母線加工設(shè)備必須滿足大批量生產(chǎn)、較高加工精度、質(zhì)量穩(wěn)定、機床自身精度高、自動化水平高,操作簡單等特點。然而引進一套數(shù)控設(shè)備價格相當昂貴,國內(nèi)很多機床廠都投入到母線加工設(shè)備的研發(fā)與生產(chǎn)中,但是國內(nèi)產(chǎn)品相比于國外先進產(chǎn)品還有較大差距。因此還需要開發(fā)出一套加工性能好,自動化程度高,價格低廉的自動化母線加工設(shè)備。昆明昆開專用數(shù)控設(shè)備有限責任公司和昆明理工大學(xué)合作開發(fā)的數(shù)控母線沖壓機床正是為了滿足母線加工要求而研發(fā)的。本文以數(shù)控母線沖壓機床為研究對象,首先根據(jù)機床功能的不同,將機床分為機械手送料工位、沖剪工位、折彎工位等多個工位,分別對他們進行結(jié)構(gòu)和動作流程分析,同時對其中的液壓系統(tǒng)、絲杠工作臺進行性能分析和研究。建立其簡化數(shù)學(xué)模型,得出其傳遞函數(shù)。引入數(shù)控母線沖壓機床實際參數(shù)后,通過Matlab軟件中的Simulink模塊進行仿真分析。得出系統(tǒng)的穩(wěn)定性和響應(yīng)速度。通過對機床進行結(jié)構(gòu)分析后,對機床硬件系統(tǒng)和軟件系統(tǒng)進行開發(fā)和設(shè)計。對比了各種控制系統(tǒng)后確定了由PLC作為下位機,人機界面作為上位機的“PLC+觸摸屏”的控制方案。PLC和人機界面通過串行通信接口進行數(shù)據(jù)傳輸,構(gòu)成緊密的上下位機關(guān)系。在PLC控制系統(tǒng)中,首先進行I/O點的資源分配,然后對其硬件接口進行設(shè)計,最后對PLC程序和人機界面進行開發(fā)。通過對數(shù)控母線沖壓機床的控制系統(tǒng)進行調(diào)試運行,表明該控制方案能夠保證母線加工精度,為數(shù)控設(shè)備的研發(fā)提供了新的思路。
[Abstract]:With the continuous development of large-scale engineering projects and modern manufacturing, the demand for electricity in various fields is increasing, especially the emergence of high-energy consumption enterprises such as large-scale assembly line production enterprises. As a traditional power transmission cable has been unable to meet the large current transmission, the busbar as a distribution wire emerged as the times require. Busbar shows its superiority in high current transmission, such as conductivity and safety. Because of the widespread use of busbar, especially in the high risk industry of electric power, the safety performance of busbar is more and more high. In this way, the busbar processing equipment must meet the characteristics of mass production, high machining accuracy, stable quality, high precision of machine tool, high level of automation, simple operation and so on. However, the introduction of a set of numerical control equipment is very expensive, many domestic machine tool factories are invested in the research and development and production of bus processing equipment, but domestic products compared with foreign advanced products still have a big gap. Therefore, it is necessary to develop a set of automatic bus processing equipment with good processing performance, high automation and low price. The CNC busbar stamping machine developed by Kunming Kunkai Special NC equipment Co., Ltd and Kunming University of Science and Technology is developed to meet the requirements of bus processing. In this paper, the CNC busbar stamping machine is taken as the research object. Firstly, according to the different functions of the machine tool, the machine tool is divided into four parts, such as feeding, shearing, bending and so on, and the structure and action flow are analyzed respectively. At the same time, the hydraulic system, screw table performance analysis and research. The simplified mathematical model is established and its transfer function is obtained. After introducing the actual parameters of NC bus stamping machine, the simulation analysis is carried out by Simulink module in Matlab software. The stability and response speed of the system are obtained. After analyzing the structure of machine tool, the hardware system and software system of machine tool are developed and designed. After comparing various control systems, the control scheme of "PLC touch screen" with PLC as lower computer and man-machine interface as upper computer is determined. The data transmission between PLC and man-machine interface is carried out through serial communication interface, which forms a close relationship between upper and lower computers. In the PLC control system, I / O point resource allocation is first carried out, then the hardware interface is designed. Finally, the PLC program and the man-machine interface are developed. By debugging and running the control system of NC busbar stamping machine, it is shown that the control scheme can guarantee the precision of busbar machining and provide a new idea for the research and development of NC equipment.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TG385

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