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摘 要
本文作者研究的主要是數控車床的主傳動系統，這類主傳動系統的設計可用于對普通車床的改造，以適應當前我國機床工業(yè)發(fā)展的現狀，具有一定的經濟效益和社會效益。
本文作者完成的設計主要包括根據一些原始數據（其中包括機床的類型、規(guī)格等）結合實際條件和情況對車床一些參數進行擬定，再根據擬定的參數，進行傳動方案的比較，確定傳動方案。然后計算各傳動副的傳動比及齒輪齒數，再估算齒輪的模數和各軸的軸徑，并對齒輪和軸的強度、剛度進行校核。除此之外，還要對箱體內的主要結構進行設計，一些零件的選型，如電磁離合器的選擇等，從而完成對整個主傳動系統的設計。
關鍵詞：數控車床 主傳動系統 設計
Abstract
What author of this text study numerical control main transmission of lathe mainly, the main design of transmission can use for to ordinary transformation of lathe, In order to adapt to the current situation of the present industrial development of lathe of our country, have certain economic benefits and social benefit.
The design that the author of this text finished includes according to some initial data mainly( type, specification of including the lathe ,etc.) Combine actual condition and situation draft to some parameters of lathe, and then according to the parameter drafted, Carry on the comparison of the transmission scheme, confirm the transmission scheme. It then can't calculate every transmission transmission of the packs than and gear wheel tooth count, estimate modulus and the every axle foot-paths of axle of gear wheel more, And check the intensity, rigidity of gear wheel and axle . In addition, will design the main structure in the body of the case , the selecting types of some parts, Electromagnetic choice of clutch,etc., finish to whole main design of transmission for instance.
Keywords：NC machine tool; main driving system; design
目錄
0. 引言···········································1
1. 總體設計方案擬定·······························2
1.1 擬定主云動參數·······························2
1.2 運動設計·····································3
1.3 動力設計和結構草圖設計·······················3
1.4 軸和齒輪的驗算·······························3
1.5 主軸變速箱設計·······························3
1.6 進給電機伺服系統設計·························3
2. 參數擬定·······································5
2.1 車床主參數和基本參數·························5
2.2 各級轉速的確定·······························5
3. 運動設計·······································6
3．1主運動擬定方案······························6
3.2 傳動方案的比較·······························6
3.3 各級傳動比的計算·····························8
3.4 各軸轉速的確定方法···························10
3.5 轉速圖擬定···································10
4. 主傳動系統設計································11
4.1 帶輪及帶的計算·······························11
4.2 齒輪的計算···································13
4.3 電磁離合器的選擇和使用·······················21
4.4 軸的設計和驗算······························24
5. 主軸變速箱的裝配設計·························30
5.1 箱體內結構設計的特點························30
5.2 設計的方法··································31
6. 典型零件的加工工藝（軸類、盤類、箱體類等）····33
6.1 軸類零件的加工······························33
6.2 箱體類零件的加工····························47
致謝············································56
參考文獻········································57