【正文】 merical control machine, high efficiency characteristics.Key words: Process analysis, clamping scheme, process flow, threedimensional modeling, automatic programming3目 錄1 緒論 ........................................................................................................................................................4 數(shù)控加工技術(shù)概述 .........................................................................................................................4 數(shù)控銑削加工技術(shù) .........................................................................................................................5 本課題的主要任務(wù) .........................................................................................................................52 零件的三維造型設(shè)計 ............................................................................................................................6 軟件的選擇 .....................................................................................................................................6 零件的三維造型設(shè)計 .....................................................................................................................7 繪制頂蓋 .................................................................................................................................7 底座的繪制 .............................................................................................................................9 實體的結(jié)合 ...........................................................................................................................10 圓角的生成 ...........................................................................................................................11 實體抽殼 ...............................................................................................................................11 開口 .......................................................................................................................................12 六邊形凸臺的生成 ...............................................................................................................13 孔的生成 ...............................................................................................................................14 本章小結(jié) .......................................................................................................................................143 零件的工藝規(guī)程設(shè)計 ..........................................................................................................................15 零件的工藝分析 ...........................................................................................................................15 零件的結(jié)構(gòu)特點工藝性分析 ...............................................................................................15 毛坯的選擇 ...................................................................................................................................15 定位基準(zhǔn)的選擇 ...........................................................................................................................16 裝夾方式的選擇 ...........................................................................................................................16 工序及工步的劃分 .......................................................................................................................16 刀具的選擇 ...................................................................................................................................16 切削用量的選擇 ...........................................................................................................................17 工藝卡片的制定 ...........................................................................................................................18 工藝過程卡 ...........................................................................................................................18 數(shù)控加工工序卡 ...................................................................................................................19 本章小結(jié) .......................................................................................................................................204 零件的 MASTERCAM 自動編程及仿真加工 .................................................................................20 刀路設(shè)計前的準(zhǔn)備 .......................................................................................................................20 毛坯的設(shè)置 ...................................................................................................................................21 刀具的設(shè)置 ................