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摘 要 本文介紹了立式數(shù)控銑床的一些基本概況，簡述了機床主傳動系統(tǒng)方面的原理和類型，分析了各種傳動方案的機理。立式數(shù)控銑床主傳動系統(tǒng)包括了主軸電動機、主軸傳動系統(tǒng)和主軸組件三部分組成。本文詳細介紹了立式數(shù)控銑床主傳動系統(tǒng)的設(shè)計過程，該立式數(shù)控銑床主軸變速箱是靠齒輪進行傳動的，主軸箱傳動系統(tǒng)采用齒輪傳動，傳動形式采用集中式傳動，主軸變速系統(tǒng)采用多聯(lián)滑移齒輪變速。齒輪傳動具有傳動效率高，結(jié)構(gòu)緊湊，工作可靠、壽命長，傳動比準確等優(yōu)點。文中介紹了立式數(shù)控銑床主傳動系統(tǒng)各種傳動方案優(yōu)缺點的比較、主傳動方案的選擇和確定、主傳動變速系統(tǒng)的設(shè)計計算、主軸組件的設(shè)計、軸承的選用基潤滑、關(guān)鍵零件的校核、以及主軸電動機的控制等設(shè)計過程。 [關(guān)鍵詞] 數(shù)控機床；立式數(shù)控銑床；主傳動系統(tǒng)；主軸組件；軸承；主軸電動機 Abstract this text introduces the sign type number to control some basic general situations of the miller, Chien says the tool machine lord to spread the principle and types of move the systems, analyzing various mechanism that spreads to move the project.The sign type number controls the miller lord to spread to move the system to include the principal axis electric motor, principal axis to spread to move the system and the principal axis module three partses to constitute.Detailed introduction of this text the sign type number controls the design process that the miller lord spreads to move the system, should the sign type number control the miller principal axis to become soon the box is to is carry on by wheel gear to spread to move of, the principal axis box spreads to move the system adoption wheel gear to spread to move, spreading to move the form adoption concentration type to spread to move, the principal axis become soon many of the system adoption slip to move the wheel gear to become soon.The wheel gear spreads to move to have to spread to move the efficiency high, the structure tightly packed, work credibility, the life span is long, spreading to move than accurate etc. advantage.It introduced the sign type number to control the miller lord to spread to move various comparison, lord that spreads to move the project merit and shortcoming of system to spread in the text the choice and assurance, lords of move the projects spread to move to become soon system of design, bearings of design calculation, the principal axis module choose the control of the school pit, and the principal axis electric motor of use the lubrication, the key spare parts etc. the design process. Key words： the number controls the tool machine;The sign type number controls the miller;The lord spreads to move the system;Principal axis module; Bearings; Principal axis electric motor. 目 錄 摘 要 I Abstract II 目 錄 III 第1章 緒論 1 1.1概述 1 1.2數(shù)控機床的發(fā)展 2 1.3本文設(shè)計內(nèi)容 7 第2章 電機選擇 9 第3章 軸類零件的設(shè)計 11 3.1軸的設(shè)計概述 11 3.2主軸主要結(jié)構(gòu)參數(shù)的確定 11 3.3軸的結(jié)構(gòu)設(shè)計 14 3.4 主軸剛度的計算 16 第4章 齒輪傳動設(shè)計與計算 18 4.1主要參數(shù)的選擇 18 4.2 齒輪的設(shè)計與計算 18 第5章 軸承的設(shè)計與計算 22 5.1軸承當(dāng)量動載荷的計算 22 5.2 驗算兩軸承的壽命 23 第6章 圓弧齒同步帶的設(shè)計 24 6.1確定圓弧齒同步帶的基本參數(shù) 24 6.2 確定帶的中心距 25 6.3 選擇帶的類型 25 第7章 蝶形彈簧的設(shè)計 27 7.1蝶形彈簧的結(jié)構(gòu)尺寸 27 7.2 彈簧的許用應(yīng)力和疲勞極限 28 7.3 蝶形彈簧的設(shè)計與計算 28 7.4 蝶形彈簧的校核 30 第8章 拉桿的設(shè)計 32 8.1確定拉桿的直徑 32 8.2 確定拉桿的長度 32 8.3 選擇帶的類型 32 總 結(jié) 33 致 謝 34 參考文獻 35 I