需要金幣： 1000 個(gè)金幣 |
資料包括：完整論文 |  |
 |
| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：17553 |  | |
| 折扣與優(yōu)惠：團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘 要:隨著現(xiàn)代科學(xué)技術(shù)的迅速發(fā)展，現(xiàn)代制造業(yè)也不斷向著高速度，高質(zhì)量，高精度發(fā)展，作為高速加工方法之一的高速數(shù)控機(jī)床的性能也不斷在提高，爭(zhēng)取更快，更準(zhǔn)，更好。作為高速數(shù)控機(jī)床核心部件的高速電主軸的性能的好壞，對(duì)產(chǎn)品的加工精度起著決定性的作用。 高速電主軸單元在工作過(guò)程中的振動(dòng)會(huì)影響到系統(tǒng)的加工精度，加工的穩(wěn)定性，工件的表面質(zhì)量等，直接決定加工成品質(zhì)量的好壞和機(jī)床的使用壽命。通過(guò)研究高速電主軸在工作中的振動(dòng)，找出引起振動(dòng)的原因。采用相應(yīng)的方法和措施從源頭上減小電主軸的振動(dòng)以提高加工效率。 本文通過(guò)使用LMS test lab試驗(yàn)儀器，對(duì)不同轉(zhuǎn)速下的電主軸進(jìn)行了振動(dòng)測(cè)試試驗(yàn)，試驗(yàn)結(jié)果以頻譜圖的方式輸出,通過(guò)分析試驗(yàn)結(jié)果，找出振動(dòng)強(qiáng)弱和不同的轉(zhuǎn)速之間的變化規(guī)律，并分析找出減小振動(dòng)的方法和措施，以提高電主軸性能。 關(guān)鍵詞：高速電主軸 振動(dòng) LMS 頻譜分析
Abstract:With the rapid development of modern science and technology, the modern manufacturing industry develops towards high speed, high quality and high precision. As one of the high speed machining methods, the performance of the high speed NC machine tools constant improve to faster, more accurate and better. As a key component of high speed NC machine tools, the characteristic of high speed motorized spindle plays a decisive role in the product machining accuracy. The machining accuracy, steady and workpiece’s surface quality are influenced by the vibration in the process of high speed motorized spindle operating, which directly determines the product’s quality and machine tool’s life. Through studying the vibration of the high speed motorized spindle, the reason which causes the vibration are pointed out. The method and measures are proposed to reduce the vibration and improve machining efficiency. In this paper, by using the LMS test lab, the vibration test was carried out on high speed motorized spindle at different speeds and the test results are output as the spectrum. Through analyzing the test results, the change rule between vibration and speed are found out, the methods and measures of reducing vibration are analyzed, which can improve the performance of motorized spindle. Keywords: high speed motorized spindle；vibration；LMS；spectral analysis |
