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山東大學(xué)本科畢業(yè)設(shè)計(jì)（論文）
摘要
隨著機(jī)械產(chǎn)品精度、可靠性和壽命的要求不斷提高以及新型材料的應(yīng)用增多，磨削加工技術(shù)正朝著超硬度磨料磨具、開發(fā)精密及超精密磨削和研制高精度、高剛度、多軸的自動(dòng)化磨床等方向發(fā)展，結(jié)合市場(chǎng)和畢業(yè)設(shè)計(jì)的實(shí)際，進(jìn)行數(shù)控高速端面外圓磨床的設(shè)計(jì)
本次設(shè)計(jì)綜合運(yùn)用大學(xué)所學(xué)的知識(shí)，通過查閱國(guó)內(nèi)外磨床相關(guān)資料，確定磨床總體布局中砂輪架、頭架和尾架等部件的尺寸；檢驗(yàn)主軸前端擾度，確保主軸剛度；砂輪架采用靜動(dòng)壓軸承以提高旋轉(zhuǎn)精度，增強(qiáng)抗振性，延長(zhǎng)軸承的使用壽命；采用皮帶和花鍵副帶動(dòng)主軸旋轉(zhuǎn)，減少主軸變形，使載荷分布均勻；旨在進(jìn)行磨床總體布局設(shè)計(jì)和砂輪架設(shè)計(jì)。
關(guān)鍵詞：外圓磨床 砂輪架 剛度 旋轉(zhuǎn)精度 主軸變形
Abstract
With the precision mechanical products, reliability and life is ever increasing, as well as the application of new materials increase in grinding technology is moving in super-hardness of abrasives, developing precision and ultra-precision grinding and the development of high precision, high stiffness, multi - -axis direction automatic grinding machine, etc., combined with the market and graduate design, carry out high-end CNC cylindrical grinding machine design
The design of the integrated use of the University have learned, through access to relevant information grinder at home and abroad to determine the overall layout of the grinding wheel frame, the first frame and tail components such as the size of aircraft; test spindle disturbing degree of front-end to ensure spindle rigidity; wheel frame using static and dynamic pressure bearings to increase the rotation accuracy, enhanced anti-vibration and prolong the service life of bearings; use of belts and spline drive spindle rotation, reducing spindle deformation, so that uniform load distribution; aimed at understanding the overall layout of grinding wheel at a reasonable level aircraft and their components.
Keywords: wheel frame stiffness of spindle rotation accuracy deformation
目 錄
第一章 緒論………………………………………………………………1
1.1磨床的類型與用途………………………………………………………1
1.1.1磨床的類型及其特點(diǎn)……………………………………………… 1
1.1.2磨床的用途…………………………………………………………1
1.1.3外圓磨削和端面外圓磨床…………………………………………2
1.2磨床的現(xiàn)狀及其發(fā)展趨勢(shì)………………………………4
第二章 設(shè)計(jì)任務(wù)書……………………………………………………………5
2.1.畢業(yè)設(shè)計(jì)題目……………………………………………………………5
2.2.畢業(yè)設(shè)計(jì)的目的………………………………………………………………5
2.3.任務(wù)與要求………………………………………………………………5
2.4.用途和規(guī)格…………………………………………………………………5
2.5.設(shè)計(jì)重點(diǎn)與難點(diǎn)……………………………………………………………6
2. 6.擬采用的途徑與手段………………………………………………………………6
第三章 磨床總體布局……………………………………………………………7
3.1磨床總體設(shè)計(jì)…………………………………………………………………………7
3.2總體設(shè)計(jì)注意事項(xiàng)………………………………………………………………… 7
3.3磨床總體布局設(shè)計(jì)………………………………………………………………… 7
3.3.1加工零件…………………………………………………………………………… 7
3.3.2初步估計(jì)組成部分………………………………………………………………… 7
3.3.3總體布局初步設(shè)計(jì)………………………………………………………………… 7
3.3.4縱向與橫向尺寸的確定…………………………………………………………… 8
3.3.5砂輪架相關(guān)尺寸設(shè)計(jì)………………………………………………………………11
3.3.6頭架相關(guān)尺寸的確定………………………………………………………………13
3.3.7尾架相關(guān)尺寸的確定………………………………………………………………14
3.3.8工作臺(tái)………………………………………………………………………………14
3.3.9橫向進(jìn)給機(jī)構(gòu)………………………………………………………………………14
3.3.10砂輪修整器……………………………………………………………………… 14
3.3.11液壓系統(tǒng)………………………………………………………………………… 15
3.3.12電氣部分………………………………………………………………………… 15
3.3.13機(jī)床保護(hù)系統(tǒng)…………………………………………………………………… 15
第四章 砂輪架設(shè)計(jì)……………………………………………………………………… 16
4.1砂輪架設(shè)計(jì)的基本要求…………………………………………………16
4.2主軸旋轉(zhuǎn)精度及其提高措施……………………………………………16
4.3主軸軸承系統(tǒng)的剛性…………………………………………………………16
4.4砂輪架主軸初步設(shè)計(jì)…………………………………………………………16
4.5主軸剛度校核……………………………………………………………………18
4.6動(dòng)靜壓軸承………………………………………………………………………19
4.7傳動(dòng)裝置設(shè)計(jì)……………………………………………………………………20
第五章 數(shù)控系統(tǒng)設(shè)計(jì)………………………………………………………………27
5.1概述……………………………………………………………………………… 27
5.2確定硬件電路總體方案……………………………………………………27
結(jié)論……………………………………………………………………………………35
致 謝………………………………………………………………………………… 37
參考文獻(xiàn)………………………………………………………………………………38
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