【正文】 ....................................... 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)設計 .................................................................................................. 15 結(jié)構(gòu)分析 ................................................................................ 錯誤 !未定義書簽。CNC milling machine 畢業(yè)設計說明書 III 目錄 摘 要 ................................................................................................................................... I Abstract ................................................................................................................................. II 緒論 1 X52K 型數(shù)控銑床主傳動系統(tǒng)的運動設計 ................................... 錯誤 !未定義書簽。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。 最后，我在此向在本次設計中付出了辛勤勞動的指導老師表示由衷的謝意。 在這次畢業(yè)設計中，我緊扣設計題目，查閱有關技術資料，并在老師的指導和幫助下，完成了數(shù)控銑床 的設計及相關的電器控制。 在這次畢業(yè)設計中，我一面著手搞好這次畢業(yè)設計，一面又有計劃地復習前面所學過的基礎知識。畢業(yè)設計說明書 I 摘 要 由于我們所學的專業(yè)是機械設計制造及其自動化 ，為了能夠體現(xiàn)該 專業(yè)的優(yōu)越性，本次設計的主導思想是用電器控制機械加工，使機械和設計 緊密地結(jié)合起來。 此次畢業(yè)設計課題是：簡易數(shù)控銑床 的設計。從而使我對以前的基礎知識掌握得更牢固，而且培養(yǎng)了我解決問題的能力。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。 關鍵詞 ： 機械加工 ； 電器 ； 數(shù)控銑床 畢業(yè)設計說明書 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。electric。 主傳動系統(tǒng)技術參數(shù)的確定 ................................................ 錯誤 !未定義書簽。 畢業(yè)設計說明書 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)的計算設計 ...................................................................................................17 概述 ......................................................................................................................17 滾珠絲杠的選用設計 ..........................................................................................17 步進電機的選取 ..................................................................................................18 縱向（ y方向）步進電機的選取 ....................................................................18 橫向（ x方向）步進電機的選取 ....................................................................19 5 概述 ...............................................................................................................................20 機床介紹 ...........................................................................................................20 X52K 簡易數(shù)控機床程控系統(tǒng)的硬件結(jié)構(gòu) ......................................................20 6 8031 單片機及應用簡介 ..............................................................................................22 7 數(shù)控銑床存儲器的擴充 ...............................................................................................23 外部擴充存儲器結(jié)構(gòu) ..........................................................................................23 存儲器的地址分配 ..............................................................................................23 8 簡易數(shù)控銑床的 IO 設備及其接口 ............................................................................24 簡易數(shù)控銑床所用的輸入設備 ..........................................................................24 IO 接口 .............................................................................................................24 8155 的 RAM 和 IO 編址 ......................................................................................24