本文選題：Soft型開(kāi)放式數(shù)控系統(tǒng) + 結(jié)構(gòu)化　； 參考：《電子科技大學(xué)》2013年碩士論文

【摘要】：當(dāng)前的數(shù)控系統(tǒng)研究，已經(jīng)經(jīng)歷了由封閉式向開(kāi)放式結(jié)構(gòu)發(fā)展的過(guò)程。市場(chǎng)需求總是不斷更新，為了跟上市場(chǎng)需求步伐，，而進(jìn)行開(kāi)放式數(shù)控系統(tǒng)的按需求的二次開(kāi)發(fā)，是目前開(kāi)發(fā)應(yīng)用數(shù)控技術(shù)的一個(gè)重點(diǎn)。二次開(kāi)發(fā)可以實(shí)現(xiàn)知識(shí)產(chǎn)權(quán)自主化，要把PCB刀具磨床專用的數(shù)控功能模塊集成到數(shù)控系統(tǒng)中去，就必須進(jìn)行利用現(xiàn)有的數(shù)控系統(tǒng)進(jìn)行二次開(kāi)發(fā)。 本課題選取了一種以工業(yè)PC機(jī)為基礎(chǔ)，以德國(guó)BECKHOFF公司的Soft型開(kāi)放式數(shù)控系統(tǒng)TwinCAT NCI為控制開(kāi)發(fā)平臺(tái)，加拿大Dragonfly軟件為服務(wù)平臺(tái)嵌入Visual Basic6.0開(kāi)發(fā)的VBScript實(shí)現(xiàn)人機(jī)操作界面，PCB五軸三聯(lián)動(dòng)刀具數(shù)控磨床為設(shè)計(jì)對(duì)象。通過(guò)對(duì)該設(shè)計(jì)對(duì)象開(kāi)發(fā)的背景以及國(guó)內(nèi)外磨床行業(yè)產(chǎn)品的發(fā)展現(xiàn)狀的分析，進(jìn)而得出項(xiàng)目需要解決的主要開(kāi)發(fā)問(wèn)題以及應(yīng)該達(dá)到的設(shè)計(jì)目標(biāo)。采用結(jié)構(gòu)化分析（SA）方法，對(duì)數(shù)控系統(tǒng)進(jìn)行了需求分析，并采用結(jié)構(gòu)化設(shè)計(jì)（SD）的編程方法對(duì)HMI操作、PLC邏輯控制、NCI運(yùn)動(dòng)控制各功能模塊進(jìn)行了系統(tǒng)設(shè)計(jì)和代碼實(shí)現(xiàn)，實(shí)現(xiàn)了PCB刀具磨床數(shù)控系統(tǒng)。通過(guò)TwinCAT NCI中的PLC程序和CNC程序?qū)崿F(xiàn)數(shù)控磨床的邏輯控制和插補(bǔ)曲線及機(jī)械手自動(dòng)上下料的運(yùn)動(dòng)控制，通過(guò)BECKHOFF的開(kāi)放式實(shí)時(shí)以太網(wǎng)EtherCAT與I/O模塊和全數(shù)字伺服通訊，完成數(shù)控磨床的實(shí)際動(dòng)作，并結(jié)合機(jī)械部分進(jìn)行了整個(gè)磨床數(shù)控系統(tǒng)的運(yùn)行及刀具加工。 本數(shù)控系統(tǒng)把PCB磨床特有的功能模塊集成到了BECKHOFF數(shù)控系統(tǒng)中，在Windows XP環(huán)境下運(yùn)行，易于操作。并在廈門(mén)金鷺特種合金有限公司PCB生產(chǎn)車間得到應(yīng)有，生產(chǎn)的PCB刀具圓度誤差小于1um，跳動(dòng)誤差小于5um，螺旋角誤差小于0.5°，溝長(zhǎng)誤差小于10um。達(dá)到國(guó)際先進(jìn)水平，具有較高的精度、生產(chǎn)效率以及較好的刀具加工穩(wěn)定性。為使數(shù)控系統(tǒng)的通用性、可移植性得到增強(qiáng)，有利于系統(tǒng)后期使用的功能擴(kuò)展，該數(shù)控系統(tǒng)軟件采用模塊化結(jié)構(gòu)設(shè)計(jì)。
[Abstract]:The research of CNC system has gone through the process of development from closed to open structure. In order to keep up with the pace of market demand, the secondary development of open CNC system according to demand is a key point in the development and application of NC technology at present. The secondary development can realize the independence of intellectual property rights. In order to integrate the special NC function module of the PCB tool grinder into the NC system, it is necessary to make use of the existing NC system to carry on the secondary development. In this paper, a kind of Soft open CNC system (TwinCAT NCI), which is based on industrial PC and developed by BECKHOFF Company of Germany, is selected as the control development platform. VBScript developed by embedding Visual Basic6.0 into Canada's Dragonfly software the man-machine interface (HCI) is designed for CNC grinder with five-axis and three-axis tools. Through the analysis of the background of the design object development and the development status of the grinding machine industry at home and abroad, the main problems to be solved and the design goals to be achieved are obtained. In this paper, the requirements of numerical control system are analyzed by using the method of structured analysis (SA), and the system design and code implementation of each function module of HMI logic control are carried out by using the method of structured design and SDD. The NC system of PCB tool grinder is realized. The logic control and interpolation curve of NC grinder and the motion control of manipulator automatic loading and unloading are realized by PLC program and CNC program in TwinCAT NCI. The I / O module and full digital servo communication are realized through BECKHOFF's open real-time Ethernet EtherCAT. The actual operation of the CNC grinder is completed, and the operation of the CNC system of the grinder and the machining of the cutting tools are carried out in combination with the mechanical part. The CNC system integrates the special function module of PCB grinder into BECKHOFF NC system, runs in Windows XP environment and is easy to operate. In the PCB workshop of Xiamen Jinlu Special Alloy Co., Ltd, the roundness error, runout error, helical angle error and channel length error of the PCB cutter are less than 1 um. less than 5 ums, 0.5 擄and 10 um. respectively. International advanced level, with high accuracy, production efficiency and good tool processing stability. In order to enhance the versatility and portability of the CNC system and to expand the function of the system in the later stage, the software of the CNC system is designed with a modular structure.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TG596

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本文編號(hào)：1985844