發(fā)布時(shí)間：2018-08-15 11:42

【摘要】：激光多自由度誤差同時(shí)測(cè)量是目前數(shù)控機(jī)床導(dǎo)軌運(yùn)動(dòng)誤差檢驗(yàn)的重要發(fā)展趨勢(shì),如何在已經(jīng)實(shí)現(xiàn)的單軸多自由度幾何運(yùn)動(dòng)誤差測(cè)量基礎(chǔ)上實(shí)現(xiàn)對(duì)兩軸以上多自由度幾何運(yùn)動(dòng)誤差的同時(shí)測(cè)量,是本領(lǐng)域發(fā)展過程中需解決的問題。為解決上述問題,本論文在分析了國內(nèi)外相關(guān)研究的基礎(chǔ)上,結(jié)合本課題組已有的單軸多自由度幾何運(yùn)動(dòng)誤差同時(shí)測(cè)量裝置,設(shè)計(jì)了一種二軸多自由度誤差同時(shí)測(cè)量方法,并且對(duì)其中重要光學(xué)器件的誤差進(jìn)行了分析。概括來講,本學(xué)位論文主要的工作如下。1、采用本課題組自行研制的基于單根光纖耦合雙頻激光的六自由度誤差同時(shí)測(cè)量系統(tǒng)測(cè)量了數(shù)控機(jī)床雙軸直線度誤差,并且對(duì)兩軸直線度誤差的線性擬合計(jì)算間接實(shí)現(xiàn)兩軸的垂直度測(cè)量。實(shí)際測(cè)量數(shù)據(jù)表明,本測(cè)量系統(tǒng)準(zhǔn)確性良好,與商用測(cè)量?jī)x對(duì)比偏差在1”以內(nèi)。2、結(jié)合光線矢量追跡與MATLAB編程建立相應(yīng)的誤差模型,分析了五角棱鏡的安裝定位偏差在垂直度測(cè)量過程中的影響。結(jié)合MATLAB編程、光線傳播定律以及解析幾何相應(yīng)原理,對(duì)雙角錐棱鏡構(gòu)成的移動(dòng)靶鏡建立了數(shù)字模型,利用迭代方法對(duì)其定位誤差進(jìn)行了分析,并且給出了相應(yīng)的曲線。3、本文首次使用了結(jié)合解析幾何以及光線傳播定律的方法,編寫了角錐棱鏡中準(zhǔn)直激光的運(yùn)動(dòng)軌跡方程。該方法適用于棱鏡定位偏差引起的光線漂移的分析,具有應(yīng)用性強(qiáng),精確度高,靈活,易懂的優(yōu)點(diǎn)。
[Abstract]:The simultaneous measurement of laser multi-degree-of-freedom error is an important developing trend in the error test of guide rail motion of CNC machine tools. How to measure the geometric motion error of more than two axes and more than one degree of freedom at the same time on the basis of the measurement of geometric motion error of single axis and multiple degrees of freedom is a problem to be solved in the development of this field. In order to solve the above problems, based on the analysis of related research at home and abroad, this paper designs a method of simultaneous measurement of two-axis multi-degree-of-freedom (MDOF) error combined with the existing single-axis and multi-degree-of-freedom geometric motion error measurement device. The errors of important optical devices are analyzed. To sum up, the main work of this dissertation is as follows: 1. The error of biaxial straightness of NC machine tools is measured by using the six degrees of freedom error measurement system based on single fiber coupled dual-frequency laser developed by our group. And the linear fitting calculation of the two-axis straightness error can indirectly realize the vertical measurement of the two-axis. The actual measurement data show that the accuracy of the measuring system is good, and the deviation from the commercial measuring instrument is less than 1 ".2. combining the ray vector tracing and MATLAB programming, the corresponding error model is established. The influence of positioning deviation of pentagonal prism on the measurement of perpendicularity is analyzed. Combined with MATLAB programming, the law of ray propagation and the corresponding principle of analytic geometry, the digital model of the moving target mirror composed of biangular cone prism is established, and its positioning error is analyzed by iterative method. The corresponding curve. 3 is given. The method of combining analytic geometry and the law of light propagation is used for the first time to compile the trajectory equation of collimating laser in the corner cone prism. This method is suitable for the analysis of ray drift caused by prism positioning deviation, and has the advantages of strong application, high accuracy, flexibility and easy to understand.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TG659

【相似文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前2條

1 李娟;基于五角棱鏡的滾轉(zhuǎn)角誤差測(cè)量方法研究[D];北京交通大學(xué);2012年

2 鄭鍵;TST現(xiàn)場(chǎng)雙光路激光準(zhǔn)直測(cè)量系統(tǒng)的研究[D];天津大學(xué);2007年

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本文編號(hào)：2184092