【正文】 范圍 ........................................................................................ 2 數(shù)控機床的分類方法 ........................................................................................ 3 按控制刀具與工件相對運動軌跡分類 ...................................................... 3 按加工方式分類 ..................................................................................... 3 數(shù)控機床的特點 ..................................................................................... 3 課題的構(gòu)思 ...................................................................................................... 3 本人要完的任務(wù) ............................................................................................... 4 第二章 工藝分析 ......................................................................................................... 1 數(shù)控加工零 件的工藝性分析 ........................................................................... 1 零件外形分析 ................................................................................................ 1 精度分析 ....................................................................................................... 1 軸套類零件的結(jié)構(gòu)工藝性分析 ....................................................................... 1 數(shù)控加工工藝路線設(shè)計 .................................................................................. 2 選擇定位基準 ................................................................................................ 2 確定數(shù)控加工方法 ......................................................................................... 3 劃分加工階段 ................................................................................................ 3 劃分加工工序 ................................................................................................ 4 確定加工順序 ................................................................................................ 4 加工方案的擬訂 ............................................................................................ 5 確定毛坯類型及工序尺寸及公差 .................................................................... 8 確定總加工余量與毛坯尺寸 ......................................................................... 11 確定工件裝夾與定位方案 ............................................................................ 12 確定各工序的切削用量 .............................................................................. 12 第三章 刀具的選擇與刀具卡的制定 .......................................................................... 15 夾緊方式的選擇 ............................................................................................ 15 端面車刀 T0101 的選擇 ................................................................................. 15 外圓粗車到的選擇 T0303 ............................................................................... 17 粗鏜到的選擇可以參考外圓粗車刀 T0202 ....................................................... 18 外圓半精車刀的選擇 T0606 ............................................................................ 18 半精鏜刀可以參考半精車刀進行選擇 T0505 ................................................... 19 精車刀的選擇 T0808 ...................................................................................... 19 精鏜刀的選擇 ................................................................................................ 20 切槽刀的選擇 T0404 T0909 ............................................................................ 20 零件數(shù)控加工刀具卡 .................................................................................... 20 第四章 數(shù)控加工程序與仿真 ...................................................................................... 21 數(shù)控加工程序要點 ......................................................................................... 21 數(shù)控仿真效果圖 ............................................................................................. 21 4 第五章 后續(xù) .............................................................................................................. 23 參考文獻 .................................................................................................................... 25 附錄 1 軸套類零件數(shù)控加工工藝卡 ............................................................................ 27 附錄 2 軸套類零件數(shù)控加工 刀具卡 ............................................................................ 28 附錄 3 軸套類零件左端數(shù)控程序單說明 ..................................................................... 29 附錄 4 軸套類零件右端數(shù)控程序單說明 ..................................................................... 30 致 謝 ......................................................................................................................... 26 1 第一章 緒論 畢業(yè)設(shè)計是大學(xué)教學(xué)的最后一門課程，它主要是考查學(xué)生對理論知識的掌握和綜合運用的能力，進一步加深學(xué)生對專業(yè)理論知識的理解，啟發(fā)學(xué)生設(shè)計創(chuàng)造思維，提高學(xué)生分析、解決問題的能力，增強學(xué)生在機械制造 方面的實踐能力，加強學(xué)生對語言的邏輯組織能力。 Text including introduction, process analysis of two major and detailed description of the processing of the program development, rational analysis。全文包括緒論，工藝分析兩大部分。正個過程全擬定三套加工方案，并選取最優(yōu)方案進行詳細介紹。 tool card, the cardproduction process are described in a process of full development of three processing program, and select the best plan in efficiency, cost and labor intensity of impact, the design did not use special fixtures and special note is for small batch production and development of CNC machine tools. Key words： CNC lathe。自從機器出現(xiàn)到現(xiàn)在，短短 100 年間，幾乎每十年制造業(yè)就有大的變化。 隨著消費向個性化發(fā)展，單件小批量多品種產(chǎn)品占到大部分的份額，這類產(chǎn)品的零件一般采用通用機床來加工。會對零件圖進行工藝分析，明