【正文】 Generally, there are two parts in this paperthe spindle box and the driving system on the Z axis. The design of the spindle box include the model selection of the electric machine, speed control systemwhich is the key and difficult points in this paper, the strength checking of the axis and the design of the driving system. Firstly, the selection of the electric machine that is based on the parameters that are known from the sheets through the rated torque and rated speed. The electric machine should own the capacities of energy conservation and save money that is based on the function that satisfy the operating requirement. Secondly, the design of speed control system should analysis by synthesis the factors that including the equipment life, safety factor, efficiency and the general structure features to allocate the speed ratio that could optimize the running. The design of driving system must considerate the weight of the cutter sets, the size of the principal axis and the maximum cutter travel to determine the size of the ball screw, then confirm the other accessories. Through the design, the students could have a further understanding of mechanical processing equipment, in the meantime, mastering institutions such as variable speed reducer design methods, set up rigorous design concept, so as to achieve the purpose of the prehensive training, go to work to lay a solid foundation for the future. Key words: Selection of the electric machine。 拖動 系統(tǒng)設(shè)計(jì) 主要是 根據(jù) 刀臺的 重量以及主軸軸頸大小，刀具行程來確定拖動系統(tǒng)滾珠絲杠軸頸大小，從來確定其他零部件的 尺寸 。 其中 電機(jī)的選型要根據(jù)設(shè)計(jì)參數(shù) 從 轉(zhuǎn)速以及轉(zhuǎn)矩 的 角度上 考慮 ， 來 選擇 一個最合適的電機(jī)，要求電機(jī)在滿足設(shè)計(jì)所需的動力的基礎(chǔ)上，能夠最大限度的節(jié)省能源和電力。這次改型設(shè)計(jì)主要是主軸箱和 Z 軸拖動系統(tǒng)的設(shè)計(jì)。 致謝 .............................................................................................. 錯誤 !未定義書簽。 剛度驗(yàn)算 ................................................................ 錯誤 !未定義書簽。 確定額定動載荷 及絲杠的選型 ........................... 錯誤 !未定義書簽。 導(dǎo)軌滾珠絲杠設(shè)計(jì) ........................................................... 錯誤 !未定義書簽。 拖動導(dǎo)軌的選型 ............................................................... 錯誤 !未定義書簽。 液壓缸的選擇 .................................................................. 錯誤 !未定義書簽。 第三章 主軸箱其余部件選擇 ......................................................... 錯誤 !未定義書簽。 龍門鏜銑床加工中心主軸部分的改型設(shè)計(jì) 學(xué) 院 機(jī)械學(xué)院 專 業(yè) 機(jī)械 設(shè)計(jì)制造及其自動化 班 級 學(xué) 號 姓 名 指導(dǎo)教師 遼寧科技大學(xué) 2020， 04 目錄 龍門鏜銑床加工中心主軸部分的改型設(shè)計(jì) ......................................................................... 1 摘要 ................................................................................................................................. 4 第一章 緒論 ............................................................................................................. 6 我國機(jī)床行業(yè)發(fā)展趨勢 ................................................................................ 6 我國機(jī)床發(fā)展史 ................................................................................. 6 我國機(jī)床行業(yè)今年的發(fā)展?fàn)顩r ............................................................ 7 我國機(jī)床行業(yè)未來發(fā)展的趨勢 ............................................................ 7 本課題的提出 .............................................................................................. 9 龍門鏜銑床及鏜銑加工中心簡介 ......................................................... 9 ............................................................................. 10 本課題研究的主要任務(wù) .............................................................................. 11 可行性分析 ................................................................................................. 12 第二章 主軸系統(tǒng)的設(shè)計(jì) ........................................................................................ 14 設(shè)計(jì)參數(shù) ................................................................................................... 14 主軸箱體方案設(shè)計(jì) ..................................................................................... 14 加工 中心主軸型號的選擇 ................................................................ 14 電機(jī)型號的選擇 .............................................................................. 15 電機(jī)主軸軸頸的確定 ........................................................................ 16 電機(jī)轉(zhuǎn)速的確定 ............................................................................... 16 加工中心變速箱總體結(jié)構(gòu)設(shè)計(jì) .......................................................... 17 主要結(jié)構(gòu)的設(shè)計(jì)與計(jì)算 .......................................