【正文】 畢業(yè)設(shè)計說明書 I 摘 要 由于我們所學(xué)的專業(yè)是機械設(shè)計制造及其自動化 ，為了能夠體現(xiàn)該 專業(yè)的優(yōu)越性，本次設(shè)計的主導(dǎo)思想是用電器控制機械加工，使機械和設(shè)計 緊密地結(jié)合起來。 此次畢業(yè)設(shè)計課題是：簡易數(shù)控銑床 的設(shè)計。 在這次畢業(yè)設(shè)計中，我一面著手搞好這次畢業(yè)設(shè)計，一面又有計劃地復(fù)習(xí)前面所學(xué)過的基礎(chǔ)知識。從而使我對以前的基礎(chǔ)知識掌握得更牢固，而且培養(yǎng)了我解決問題的能力。 在這次畢業(yè)設(shè)計中，我緊扣設(shè)計題目，查閱有關(guān)技術(shù)資料，并在老師的指導(dǎo)和幫助下，完成了數(shù)控銑床 的設(shè)計及相關(guān)的電器控制。但由于本人能力、 水平有限，仍存在著一些錯誤，希望老師給予批評指正。 最后，我在此向在本次設(shè)計中付出了辛勤勞動的指導(dǎo)老師表示由衷的謝意。 關(guān)鍵詞 ： 機械加工 ； 電器 ； 數(shù)控銑床 畢業(yè)設(shè)計說明書 II Abstract Due to our major is electromechanical integration, in order to be able to reflect the professional superiority, the design guiding ideology is to use the electric control mechanical processing, make the mechanical and electrical closely together. In the graduation design, while I begin does well this graduation design, the front side and systematically review learned the basic knowledge. Thus the basic knowledge of before I acquire firmer, and developed my ability to solve problems. In the graduation design, I gripping design topic, consult relevant technical data, and the teacher39。s guidance and help, pleted the CNC milling machine design and relevant electric control. But because I ability, limited ability, still has some mistakes, hope the teacher to give animadversion correct. Finally, I am here to in this design worked hard labor guide teacher say a word of hearty thanks. Keywords: mechanicalprocessing。electric。CNC milling machine 畢業(yè)設(shè)計說明書 III 目錄 摘 要 ................................................................................................................................... I Abstract ................................................................................................................................. II 緒論 1 X52K 型數(shù)控銑床主傳動系統(tǒng)的運動設(shè)計 ................................... 錯誤 !未定義書簽。 主傳動系統(tǒng)技術(shù)參數(shù)的確定 ................................................ 錯誤 !未定義書簽。 主傳動系統(tǒng)的方案論證 ........................................................................................ 1 主軸變速范圍 .....................................................................................................1 初步確定傳動方案 .............................................................................................2 繪制結(jié)構(gòu)圖 .........................................................................................................2 擬定轉(zhuǎn)速圖 .........................................................................................................3 齒輪齒數(shù)的確定 .................................................................................................4 校驗齒輪碰齒問題 .............................................................................................5 校主軸轉(zhuǎn)速誤差 .................................................................................................6 主傳動系統(tǒng)的結(jié)構(gòu)設(shè)計 ........................................................................................7 主傳動的布局 ......................................................................................................8 齒輪的軸向布置 ..................................................................................................8 2 機床主要零件的設(shè)計 .................................................................................................. 10 確定主電動機的功率和傳動件的計算轉(zhuǎn)速 ...................................................... 10 傳動軸的計算 ...................................................................................................... 10 傳動 軸直徑的估算 ........................................................................................... 10 各軸傳遞的功率及軸徑估算 .......................................................................... 11 主軸軸徑的計算 .................................................................................................. 12 直齒圓柱齒輪強度計算 .......................................................................................12 齒輪模數(shù)的估算 ............................................................................................... 12 齒輪結(jié)構(gòu)尺寸計算 ........................................................................................... 13 確定齒輪齒寬 B ................................................................................................ 14 ............................................................................14 3 主傳動系的結(jié)構(gòu)設(shè)計 .................................................................................................. 15 結(jié)構(gòu)分析 ................................................................................ 錯誤 !未定義書簽。 畢業(yè)設(shè)計說明書 IV 主軸組件軸承類型 .............................................................................................. 15 主軸軸承類型 ................................................................................................... 15 主軸材料及熱處理 ........................................................................................... 15 主軸的工作性能 .............................................................................................. 15 主軸組件的密封、潤滑 ...................................................................................15 主傳動系的變速操縱機構(gòu) ..................................................................................16 主傳動系的潤滑系統(tǒng) ..........................................................................................16 潤滑方 式的選擇 ...............................................................................................16 潤滑油的選擇 ...................................................................................................16 4 進給機構(gòu)的計算設(shè)計 ...................................................................................................17 概述 ......................................................................................................................17 滾珠絲杠的選用設(shè)計 .....................