本文關(guān)鍵詞： 砂輪修形 開放式數(shù)控技術(shù) 成形砂輪重構(gòu) 雙軸聯(lián)動　出處：《武漢理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：成形磨削是把砂輪加工成與工件型面完全吻合的反型面,然后再以此砂輪進(jìn)行對工件磨削,使其獲得所需的形狀,是工業(yè)生產(chǎn)中常用的一種精加工方法。由于成形砂輪表面與被加工工件型面完全接觸,成形砂輪的形狀精度、尺寸精度、表面質(zhì)量將直接影響被加工工件的最終精度,因此,成形砂輪的修形加工研究是提高成形磨削加工精度的重點之一。傳統(tǒng)的砂輪修形方法無法滿足現(xiàn)今工業(yè)生產(chǎn)的高精度要求,尤其是加工復(fù)雜型面的成形砂輪。隨著數(shù)控技術(shù)的發(fā)展,對高精度高效率的砂輪修形系統(tǒng)的需求極為迫切。在實際的生產(chǎn)過程中,我們往往最先得到的是工件的設(shè)計圖紙以及工件的參數(shù),而作為磨削工具的成形砂輪的參數(shù)卻是未知的,因此如何從待磨削工件參數(shù)得到成形砂輪的參數(shù)更是急需解決的問題。本文在研究砂輪修形原理和工藝的基礎(chǔ)上,將砂輪修形技術(shù)與砂輪重構(gòu)技術(shù)、數(shù)控技術(shù)結(jié)合,開發(fā)了基于“PC+ACS運(yùn)動控制器”的開放式結(jié)構(gòu)的數(shù)控砂輪修形系統(tǒng)軟件,具體內(nèi)容如下;(1)研究精密雙驅(qū)砂輪修形機(jī)的工作原理和工作特點的,完成系統(tǒng)總體控制方案設(shè)計和系統(tǒng)硬件選型,分析修形系統(tǒng)需要實現(xiàn)的功能,完成系統(tǒng)軟件總體設(shè)計。(2)研究成形砂輪參數(shù)化加工技術(shù)和重構(gòu)加工技術(shù),不僅可以根據(jù)已設(shè)計的砂輪進(jìn)行參數(shù)化加工,還可以由待磨削工件的幾何參數(shù)信息重構(gòu)出成形砂輪母線進(jìn)行加工的重構(gòu)功能。(3)研究自動編程技術(shù)及數(shù)據(jù)庫技術(shù),實現(xiàn)由砂輪參數(shù)或待磨削工件參數(shù)信息模擬刀具加工軌跡,直接生成數(shù)控加工程序功能,建立砂輪、工件信息數(shù)據(jù)庫及數(shù)控加工程序庫,方便用戶調(diào)用,減少重復(fù)操作,提高砂輪修形效率。(4)研究ACS運(yùn)動控制器的性能、特點和ACS運(yùn)動控制器程序的運(yùn)行特點,進(jìn)行基于運(yùn)動控制器的雙軸聯(lián)動的伺服控制實驗,驗證砂輪母線輪廓加工軌跡控制的可行性。
[Abstract]:Forming grinding is machining the grinding wheel into an inverse surface that matches the shape of the workpiece, and then grinding the workpiece with the wheel to obtain the desired shape. The shape precision, dimension precision and surface quality of the shaped grinding wheel will directly affect the final precision of the workpiece, because the surface of the formed grinding wheel is in complete contact with the surface of the workpiece being machined, and the shape accuracy, dimension accuracy and surface quality of the formed grinding wheel will directly affect the final precision of the workpiece being processed. The research on the shape modification of forming grinding wheel is one of the key points to improve the precision of forming grinding. The traditional grinding wheel modification method can not meet the requirement of high precision in industrial production nowadays. With the development of numerical control technology, the need of high precision and high efficiency grinding wheel modification system is very urgent. In the actual production process, What we usually get first is the design drawing of the workpiece and the parameters of the workpiece, but the parameters of the grinding wheel, which is used as the grinding tool, are unknown. Therefore, it is urgent to solve the problem of how to obtain the parameters of the grinding wheel from the parameters of the workpiece to be grinding. In this paper, the grinding wheel modification technology is combined with the grinding wheel reconstruction technology and numerical control technology, on the basis of studying the grinding wheel modification principle and technology. The NC grinding wheel modification system software based on "PC ACS motion controller" is developed. The main contents are as follows: 1) the working principle and working characteristics of the precision double-drive grinding wheel modification machine are studied. Complete the overall control scheme design and hardware selection of the system, analyze the functions of the modification system, complete the overall design of the system software. 2) study the parameterized machining technology and the reconstruction processing technology of the forming grinding wheel. Not only the parameterized machining can be carried out according to the designed grinding wheel, but also the reconstruction function of forming grinding wheel busbar can be reconstructed from the geometric parameter information of the workpiece to be ground. The automatic programming technology and database technology can be studied. The tool path is simulated by grinding wheel parameter or workpiece parameter information, NC machining program function is generated directly, grinding wheel, workpiece information database and NC machining program library are established, which is convenient for user to call and reduce repeated operation. Improving the efficiency of grinding wheel modification. (4) the performance and characteristics of ACS motion controller and the running characteristics of ACS motion controller program are studied, and the servo control experiment based on the motion controller is carried out. The feasibility of track control of grinding wheel busbar contour machining is verified.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TG743;TG659

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