本文選題：電解加工 + 整體葉盤　； 參考：《安徽理工大學(xué)》2015年碩士論文

【摘要】：整體葉盤是航空發(fā)動(dòng)機(jī)等產(chǎn)品上的重要零件,其采用的加工方法主要有高速切削、電解加工、連接法、電火花加工,其中電解加工以其獨(dú)特的優(yōu)勢將成為整體葉盤加工采用的主要方法之一。在整體葉盤加工試制過程中,通常需要對(duì)葉片進(jìn)行多次測量并根據(jù)測量結(jié)果對(duì)試驗(yàn)方案進(jìn)行調(diào)整。在過去采用離線測量方式,但每一次離線測量都需要把零件從機(jī)床上取下來,夾具調(diào)整與對(duì)刀比較麻煩,既耗時(shí)又費(fèi)力,延長了零件的試制時(shí)間。為此開發(fā)一套用于整體葉盤電解加工的在線測量系統(tǒng),研究該系統(tǒng)的構(gòu)建方式、測量方法、數(shù)據(jù)處理與誤差分析等,實(shí)現(xiàn)整體葉盤的在線測量、數(shù)據(jù)處理與結(jié)果輸出,提高零件的測量效率。 首先,研究了整體葉盤在線測量系統(tǒng)的結(jié)構(gòu)與方法。構(gòu)建的在線測量系統(tǒng)由控制器、測量驅(qū)動(dòng)系統(tǒng)、數(shù)據(jù)處理與分析軟件以及無線與有線通訊模塊組成。該測量系統(tǒng)的驅(qū)動(dòng)借助了電解加工機(jī)床原有的交流數(shù)字伺服驅(qū)動(dòng)系統(tǒng),在其硬件基礎(chǔ)上利用運(yùn)動(dòng)控制器廠家提供的運(yùn)動(dòng)函數(shù)集開發(fā)相應(yīng)的測量驅(qū)動(dòng)軟件,實(shí)現(xiàn)對(duì)機(jī)床各個(gè)運(yùn)動(dòng)軸的驅(qū)動(dòng),從而簡化了測量系統(tǒng)的結(jié)構(gòu)。測量頭選用英國RENISHAW公司的RMP60機(jī)床測頭,測量的數(shù)據(jù)通過無線網(wǎng)絡(luò)發(fā)送到接受器,再通過有線網(wǎng)絡(luò)傳給計(jì)算機(jī),進(jìn)行數(shù)據(jù)處理與加工誤差分析。 其次,研究了整體葉盤測量系統(tǒng)的測量與數(shù)據(jù)處理方法。根據(jù)整體葉盤葉片的特點(diǎn)對(duì)測量路徑進(jìn)行了規(guī)劃,在UG NX8.5軟件平臺(tái)上利用VisualC++開發(fā)了整體葉盤測量驅(qū)動(dòng)軟件,由軟件生成測量運(yùn)動(dòng)路徑并自動(dòng)生成機(jī)床的運(yùn)動(dòng)程序并驅(qū)動(dòng)機(jī)床運(yùn)動(dòng),同時(shí)控制RMP60測頭進(jìn)行測量,對(duì)測量數(shù)據(jù)提取,在計(jì)算機(jī)中將提取的數(shù)據(jù)進(jìn)行數(shù)據(jù)處理,在UG軟件中利用NURBS樣條等工具進(jìn)行葉片的逆向建模,并利用軟件提供的分析函數(shù)對(duì)葉片的誤差進(jìn)行分析,從而完成整體葉盤測量所需的驅(qū)動(dòng)、測量與數(shù)據(jù)分析。 最后,對(duì)開發(fā)的整體葉盤在線測量系統(tǒng)進(jìn)行了應(yīng)用。在某型號(hào)的整體葉盤電解加工試制過程中,對(duì)整體葉盤進(jìn)行了在線測量與加工誤差分析。測量結(jié)果表明：該在線測量系統(tǒng)可以實(shí)現(xiàn)模型數(shù)據(jù)匹配和運(yùn)動(dòng)軸的尺寸驅(qū)動(dòng)以及驅(qū)動(dòng)測頭測量,并將數(shù)據(jù)導(dǎo)入軟件中進(jìn)行插值計(jì)算,生成葉片的測量模型,通過軟件分析可知該整體葉盤的葉盆與葉背的距離公差在0.0254mm之間,角度公差為0.5。,而葉間的公差則略有不同,其距離公差為0.0255mm,角度公差為0.51。
[Abstract]:The integral vane is an important part of aero-engine and other products. The main machining methods are high speed cutting, electrolytic machining, connecting method, EDM, etc. Among them, electrolytic machining will become one of the main methods for the whole blade disk processing with its unique advantages. In the process of manufacturing and manufacturing the whole blade, it is usually necessary to measure the blade several times and adjust the test scheme according to the measurement results. In the past, off-line measurement was adopted, but each off-line measurement needs to remove the parts from the machine tool. The adjustment of the fixture is more difficult than the tool alignment, which is time-consuming and laborious, and prolongs the trial production time of the parts. In this paper, a set of on-line measuring system for integral blade plate electrolytic machining is developed. The construction mode, measuring method, data processing and error analysis of the system are studied. The on-line measurement, data processing and result output of the whole blade disk are realized. Improve the measuring efficiency of parts. Firstly, the structure and method of the system are studied. The on-line measurement system is composed of controller, measurement drive system, data processing and analysis software and wireless and wired communication module. The drive of the measuring system is based on the AC digital servo drive system of ECM machine tool. On the basis of its hardware, the corresponding measurement driving software is developed by using the motion function set provided by the motion controller manufacturer. The drive of each movement axis of the machine tool is realized, thus simplifying the structure of the measuring system. The head of the measurement adopts the head of RMP60 machine tool of RENISHAW Company of England. The measured data is transmitted to the receiver via wireless network and then transmitted to the computer through the wired network for data processing and processing error analysis. Secondly, the measurement and data processing methods of the whole blade disk measurement system are studied. According to the characteristics of the whole blade, the measuring path is planned, and the driving software of the whole blade is developed by using VisualC on UG NX8.5 software platform. The software generates the motion path of the machine tool and automatically generates the motion program of the machine tool and drives the movement of the machine tool. At the same time, the RMP60 probe is controlled to measure, the measurement data is extracted, and the extracted data is processed in the computer. In UG software, the NURBS spline and other tools are used to carry out the reverse modeling of the blade, and the error of the blade is analyzed by using the analysis function provided by the software, so that the driving, measuring and data analysis of the whole blade disk measurement are completed. Finally, the development of the whole blade disk online measurement system has been applied. The on-line measurement and machining error analysis were carried out in the trial production of a certain type of monolithic blade plate. The measurement results show that the on-line measurement system can realize the model data matching, the size drive of the moving axis and the measurement of driving probe, and the data are imported into the software to carry out interpolation calculation to generate the measuring model of the blade. Through the software analysis, the distance tolerance between the leaf basin and the back of the whole blade is between 0.0254mm and the angle tolerance is 0.5.The tolerance between the leaves is slightly different, the distance tolerance is 0.0255mm and the angle tolerance is 0.51m.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：V263.1

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