外文翻譯--數(shù)控機(jī)床幾何誤差及其補(bǔ)償方法研究-數(shù)控設(shè)計(jì)-資料下載頁(yè)
2025-05-12 06:44本頁(yè)面
【導(dǎo)讀】此翻譯文章詳細(xì)描述了數(shù)控機(jī)床幾何誤差及其補(bǔ)償方法研究，翻譯用詞基本準(zhǔn)確，文筆也較為通順，具備一定的英語(yǔ)基礎(chǔ)，實(shí)現(xiàn)機(jī)床精度的軟升級(jí)打下基礎(chǔ)。一種是通過(guò)提高零件設(shè)計(jì)、制造和裝配的水平。來(lái)消除可能的誤差源，稱(chēng)為誤差防止法。研究表明，幾何誤差和由溫度引起的誤差約占機(jī)床總體誤差的70%，其中。我國(guó)的綜合國(guó)力都具有重大意義。可能性落入不穩(wěn)定區(qū)域，從而激起強(qiáng)烈的顫振。導(dǎo)致加工工件的表面質(zhì)量惡化和幾。由于環(huán)境和運(yùn)行工況的變化所引起的隨機(jī)誤差。上面的誤差可按照誤差的特點(diǎn)和性質(zhì)，歸為兩大類(lèi)：即系統(tǒng)誤差和隨機(jī)誤差。誤差是其主要組成部分，也具有可重復(fù)性。差性質(zhì)沒(méi)有要求，能夠同時(shí)對(duì)機(jī)床的隨機(jī)誤差和系統(tǒng)誤差進(jìn)行補(bǔ)償。系統(tǒng)誤差補(bǔ)償是用相應(yīng)的儀器預(yù)。要求機(jī)床的穩(wěn)定性要好，保證機(jī)床誤差的確定性，以便于修正，經(jīng)補(bǔ)償。項(xiàng)誤差，通過(guò)線性坐標(biāo)變換進(jìn)行誤差合成，并實(shí)施了誤差補(bǔ)償。式加工中心的補(bǔ)償試驗(yàn)表明，精度提高10倍。致的絕對(duì)測(cè)量坐標(biāo)系。
【正文】 ther application and development. relative error deposition, synthetic Compensation Act Most of error of measurement methods have been only a relatively prehensive error, which can be machine deposition single error. Further use of synthetic methods of error of machine tool error pensation is feasible. At present, domestic and international research in this area have also made some progress. Michigan University of the United States in 2020, Professor Jun Ni guidance Chen Guiquan doctoral made such attempt, the use of clubs Miriam (TBB) of threeaxis CNC machine tools at different temperatures were measured geometric error, the establishment of a rapid temperature forecasts and error pensation model, carried out error pensation. Christopher uses laser clubs Miriam (LBB), in 30 minutes of the machine tool error information, the establishment of error model, in the 9month time interval, the error pensation results were 5 times the evaluation results show that through software error pensation method can improve the accuracy of machine tools, and to maintain the accuracy of the same for a long time. Error synthesis requires the axis machine tools to detect the original error, more mature measurement method is laser interferometer, measurement and high accuracy. Use dualfrequency laser interferometer measurement error, take a long time to debug the level of the operator requirements. More important is the measurement error of the high environmental requirements, monly used in the coordinate measuring machine testing, not suitable for the production operation at the scene. Relative error deposition, synthetic Compensation Act, a relatively simple measurement method, a measurement of access to the entire circumference of the data and information, at the same time meet the machine accuracy of testing and evaluation tools. At present, there are many error deposition method, as it would vary from machine tools, it is difficult to find a suitable mathematical model of generic error deposition, and the results of measuring the impact of the same original error term can not be deposed, but also made it difficult to promote the application. Error in direct pensation law, the general standard parts in order to control access to space vector error, direct pensation, less intermediate links, closer to the practical situation of machine tools. However, substantial amount of information requires a different standard parts, it is difficult to achieve, so that the accuracy of the pensation is China, many research institutions and colleges and universities in recent years have also been machine error pensation research. 1986 Beijing Machine Tool Research Institute launched a machine tool thermal error pensation for research and coordinate measuring machine pensation study. Tianjin University in 1997 and carried out Li machine error pensation of thermal error modeling and pensation study. Tianjin University in 1998 Liu Youwu using multibody system, such as the establishment of machine tool error model, given the geometric error of 22 lines, 14 lines, 9ray laser interferometer measurement method, in 1999 they also CNC machine tool error pensation a prehensive study, and achieved gratifying results. 1998 Yang Jianguo of the Shanghai Jiaotong University conducted a lathe thermal error pensation study. 19962020 in the National Natural Science Foundation and the National 863 projects, with the support of Huazhong University of Science and Technology carried out the geometric error pensation of CNC machine tools, as well as cutting force based on online identification of intelligent adaptive control research, has yielded some results. To sum up: for error pensation of CNC machine tools, error measurement is the key, error model is the foundation. Through error pensation can effectively improve the accuracy of machine tools, to enhance the level of China39。s manufacturing industry to contribute.
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