【摘要】：近年來隨著渦旋流體機(jī)械應(yīng)用領(lǐng)域的不斷擴(kuò)展,渦旋型線研究方面取得了頗多的成果,型線的種類日益繁多,型線設(shè)計(jì)的方法實(shí)用性強(qiáng),其中法向等距理論的提出更是增加了型線設(shè)計(jì)的柔性,同時(shí)也增加了加工難度。因此運(yùn)用數(shù)控加工技術(shù)完成渦旋型線的加工過程就顯得尤為重要。本文主要依據(jù)渦旋盤的嚙合原理和法向等距曲線理論,研究了三段基圓漸開線渦旋型線的擬合與數(shù)控加工。主要研究?jī)?nèi)容包括:(1)運(yùn)用曲率函數(shù)法建立了三段基圓漸開線渦旋型線的數(shù)學(xué)模型,基于三維設(shè)計(jì)軟件創(chuàng)建出渦旋盤的三維模型,同時(shí)依據(jù)型線的特點(diǎn)選擇數(shù)值逼近法為渦旋盤的加工方法。針對(duì)渦旋盤的特點(diǎn)和加工精度要求,對(duì)渦旋盤的加工工藝進(jìn)行了規(guī)劃。(2)考慮到三段基圓漸開線渦旋型線不能直接進(jìn)行加工,應(yīng)用雙圓弧對(duì)該型線進(jìn)行擬合,并通過MATLAB軟件完成擬合計(jì)算過程,設(shè)計(jì)刀具路徑從而完成渦旋盤精加工過程的程序編制并利用現(xiàn)有加工設(shè)備完成渦旋盤的實(shí)體加工過程。將雙圓弧擬合與單圓弧擬合相比較,發(fā)現(xiàn)雙圓弧擬合時(shí)擬合節(jié)點(diǎn)數(shù)減少80%,加工圓弧段數(shù)減少74%,擬合誤差降低95%,因此雙圓弧擬合效果更好。(3)用三坐標(biāo)測(cè)量?jī)x和SJ-210表面粗糙度測(cè)量?jī)x對(duì)加工出的渦旋盤進(jìn)行精度檢測(cè),表面粗糙度的測(cè)量結(jié)果為:渦旋齒壁表面粗糙度為0.539?m,渦旋齒頂面和齒底面表面粗糙度為0.420?m,表面粗糙度測(cè)量結(jié)果均小于0.8?m。結(jié)果表明,加工出的渦旋盤滿足加工精度要求。本文主要完成了三段基圓漸開線渦旋型線的生成和加工過程的研究,通過對(duì)加工精度及表面粗糙度的檢測(cè),表明該研究成果滿足型線的設(shè)計(jì)與加工要求。對(duì)三段基圓漸開線渦旋型線渦旋盤的加工具有一定的參考價(jià)值。
[Abstract]:In recent years, with the continuous expansion of the application field of vortex fluid machinery, a lot of achievements have been made in the research of the vortex profile, and the variety of the profile is becoming more and more numerous, and the design method of the profile is practical. The theory of normal isometry not only increases the flexibility of profile design, but also increases the processing difficulty. Therefore, it is very important to use NC machining technology to complete the machining process of vortex profile. Based on the meshing principle of vortex disk and the theory of normal equidistant curve, the fitting and NC machining of the involute vortex profile of three basic circles are studied in this paper. The main research contents are as follows: (1) the mathematical model of the involute vortex profile is established by using the curvature function method, and the 3D model of the scroll disk is created based on the 3D design software. At the same time, according to the characteristics of the profile, the numerical approximation method is selected as the machining method of the scroll disk. According to the characteristics of the scroll disk and the requirement of machining precision, the machining process of the scroll disk is planned. (2) considering that the involute vortex profile of the three-stage basic circle can not be processed directly, the double circular arc is used to fit the profile. The process of fitting and calculating is completed by MATLAB software, the tool path is designed to complete the process of scroll disk finishing, and the solid process of scroll disk is finished by using the existing machining equipment. By comparing double arc fitting with single arc fitting, it is found that the number of fitting nodes is reduced by 80, the number of arc segments is reduced by 74 and the fitting error is reduced by 95 percent. Therefore, the effect of double arc fitting is better. (3) the surface roughness of the vortex disk is measured by using the 3D coordinate measuring instrument and the SJ-210 surface roughness measuring instrument. The surface roughness of the vortex tooth wall is 0.539 m. The surface roughness of the top and bottom surfaces of the vortex teeth is 0.420 m, and the surface roughness is less than 0.8 m. The results show that the vortex disk can meet the requirement of machining precision. In this paper, the generation and machining process of the three-stage involute vortex profile of the base circle are studied. Through the inspection of machining precision and surface roughness, it is shown that the research results meet the design and machining requirements of the profile. It has a certain reference value for the machining of the involute vortex disk of three-stage base circle.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TG659

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 孫永吉;劉濤;;基于AdvantEdge的高速銑削合金鑄鐵渦旋盤的機(jī)理分析[J];制造技術(shù)與機(jī)床;2016年09期

2 孫永吉;劉濤;;變截面復(fù)雜渦旋型線的加工幾何與力學(xué)仿真[J];制造技術(shù)與機(jī)床;2015年10期

3 孫祥國(guó);符純?nèi)A;劉明;趙獻(xiàn)丹;;基于雙圓弧法的雙曲線型零件加工[J];煤礦機(jī)械;2015年02期

4 劉濤;王霞琴;;基于雙圓弧插補(bǔ)法的變截面渦旋盤的數(shù)控加工[J];機(jī)械制造;2014年09期

5 張學(xué)忱;陳錦昌;申藝杰;;基于軸對(duì)稱非球面子午線的步長(zhǎng)不變式雙圓弧插補(bǔ)算法[J];機(jī)械工程學(xué)報(bào);2013年09期

6 朱虹;王立軍;楊海;;基于圓弧擬合的非圓二次曲線加工技術(shù)研究[J];機(jī)械設(shè)計(jì)與制造;2012年12期

7 錢一晨;陳虎娣;;列表點(diǎn)雙圓弧樣條曲線擬合計(jì)算法[J];機(jī)械研究與應(yīng)用;2012年03期

8 尹秉奎;劉維孟;;FeatureCAM和VERICUT在渦旋盤零件的加工應(yīng)用[J];現(xiàn)代農(nóng)業(yè)裝備;2012年03期

9 王國(guó)梁;;基于對(duì)稱圓弧修正的單元組合型線渦旋壓縮機(jī)特性研究[J];機(jī)械工程學(xué)報(bào);2011年16期

10 鄔再新;杜文武;劉濤;邵兵;;漸開線-高次曲線組合型線渦旋壓縮機(jī)的設(shè)計(jì)及有限元分析[J];壓縮機(jī)技術(shù);2011年02期

相關(guān)碩士學(xué)位論文 前2條

1 王霞琴;新型渦旋壓縮機(jī)渦旋盤的數(shù)控加工[D];蘭州理工大學(xué);2014年

2 孫迎;變截面渦旋壓縮機(jī)數(shù)學(xué)模型的研究[D];蘭州理工大學(xué);2012年

，

本文編號(hào)：2378673