1.1 零件CAD由零件建模所得到的模具上模体图（建模的大致过程、截取几个关键的过程图）试用UG建模后,导出igs格式的文件。

1.2零件加工工艺设计1.2.1 确定毛坯类型1）铣削零件毛坯类型：圆柱 2）零件材料：塑料 3）制造方法：铣削 1.2.2 数控加工工艺分析 1．工艺分析如图所示，零件外形规则。

工件复杂程度一般，包含了平面、圆弧表面，选用机用虎钳装夹工件，采用试切法对刀，找正工件X 、y 轴零点。

根据零件图样要求给出加工工序为：1：铣端面选用M50的面铣刀2：粗铣外形1 选用M16的端铣刀3：粗铣外形2 选用M8的球铣刀4：精铣外形1 选用M8的球铣刀5：精铣外形2 选用M8的球铣刀6：残料清角选用M8的球铣刀1. 3 零件CAM1.3.1刀具路径的生成小组任务分配情况平面铣削张腾04曲面粗加工挖槽刘先慧03曲面粗加工登高外形胡龙05曲面精加工环绕等距杨永赟06曲面精加工等高外形龚箭02残料清角①铣端面：加工方式：平面铣削；刀具选择：M50 面铣刀；切削参数：进给率400、提刀速度800、主轴转速800加工预留量0.8最大Z轴进给1.0加工面：铣端面参数选项卡②曲面粗加工挖槽加工方式：平行铣削，双向切削；刀具选择：M10平刀；切削参数：进给率400、主轴转速800、加工预留量0、Z轴最大进给量2.0。

加工面：曲面粗加工挖槽参数选项卡③曲面粗加工：加工方式：等高外型；刀具选择：M16端铣刀；切削参数：进给率400、Z轴最大进给量2.0、提刀速度1000、主轴转速1200、加工预留量0最大切削间距0.2加工面：曲面粗加工等高外形参数选项卡④曲面精加工I：加工方式：环绕等距;刀具选择：M8球刀；切削参数：进给率300、Z轴最大进给量2.0、提到速度1000、主轴转速1200、加工预留量0、最大切削间距0.2、封闭式轮廓方向为顺时针；加工面：曲面精加工环绕等⑤曲面精加工II：加工方式：等高外型；刀具选择：M8球铣刀；切削参数：进给率300、Z轴最大进给量2.0、提到速度900、主轴转速1200、加工预留量0、最大切削间距0.5。

加工面：曲面精加工等高外形参数选项卡⑥残料清角加工方式：残料清角；刀具选择：M8球铣刀；切削参数：进给率300、Z轴最大进给量2.0、提到速度900、主轴转速1200、加工预留量0、最大切削间距0.5。

加工面：曲面精加工残料清角参数选项卡1.3.2 加工程序的生成1.4 CAM程序清单通过后置处理产生NC加工程序，按华中HNC-21M系统编程格式编辑经后置处理所产生的程序。

①曲面粗加工等高外形：工步三由于程序过长中间省略部分%O0003N100 G0 G17 G40 G49 G80 G90N102 G91G28 Z0.N104 S1600 M3N106 G0 G90 G54 X-52.515 Y-16.15N108 Z2.8N110 Z.8N112 G1 Z-.2 F100N114 X-52.436 Y-16.284 F600.N116 X-52.071 Y-16.801N118 X-51.985 Y-16.92N120 X-51.581 Y-17.406N122 X-51.14 Y-17.859N124 X-50.557 Y-18.371N126 X-50.051 Y-18.749N128 X-49.515 Y-19.086N130 X-49.397 Y-19.154N132 X-48.836 Y-19.448N134 X-48.255 Y-19.696N136 X-47.534 Y-19.939N138 X-46.92 Y-20.093N140 X-46.297 Y-20.198N142 X-46.179 Y-20.215N144 X-45.517 Y-20.272N146 X-44.876 Y-20.277N148 X-23.311N150 Y-20.513N152 X-23.268 Y-21.214N154 X-23.18 Y-21.84N156 X-23.012 Y-22.603N158 X-22.827 Y-23.207N160 X-22.594 Y-23.795N162 X-22.528 Y-23.938N164 X-22.25 Y-24.505N166 X-21.927 Y-25.05N168 X-21.563 Y-25.566N170 X-21.463 Y-25.693 N172 X-21.06 Y-26.179 N174 X-20.618 Y-26.633 N176 X-20.143 Y-27.049 N178 X-20.016 Y-27.149 N180 X-19.51 Y-27.527 N182 X-18.974 Y-27.864 N184 X-18.414 Y-28.157 N186 X-18.272 Y-28.223 N188 X-17.69 Y-28.472 N190 X-17.091 Y-28.673 N192 X-16.478 Y-28.827 N194 X-16.332 Y-28.858 N196 X-15.709 Y-28.963 N198 X-15.024 Y-29.021 N200 X-14.377 Y-29.027 N202 X14.41 Y-29.026N204 X15.111 Y-28.978 N206 X15.736 Y-28.884 N208 X15.882 Y-28.852 N210 X16.497 Y-28.709 N212 X17.1 Y-28.517N214 X17.685 Y-28.278 N216 X17.828 Y-28.212 N218 X18.393 Y-27.928 N220 X18.933 Y-27.6N222 X19.446 Y-27.231 N224 X19.573 Y-27.131 N226 X20.055 Y-26.722 N228 X20.503 Y-26.276 N230 X20.915 Y-25.796 N232 X21.015 Y-25.67N234 X21.388 Y-25.159 N236 X21.719 Y-24.62N238 X22.006 Y-24.057 N240 X22.072 Y-23.915 N242 X22.315 Y-23.331 N244 X22.51 Y-22.729N246 X22.657 Y-22.114 N248 X22.688 Y-21.969 N250 X22.786 Y-21.344 N252 X22.835 Y-20.714 N254 X22.839 Y-20.644 N256 X22.844 Y-20.276N258 X31.752N260 X32.451 Y-20.228 N262 X33.076 Y-20.134 N264 X33.216 Y-20.105 N266 X33.832 Y-19.961 N268 X34.435 Y-19.769 N270 X35.02 Y-19.531N272 X35.154 Y-19.472 N274 X35.719 Y-19.187 N276 X36.259 Y-18.859 N278 X36.891 Y-18.404 N280 X37.373 Y-17.995 N282 X37.821 Y-17.549 N284 X37.917 Y-17.442 N286 X38.328 Y-16.962 N288 X38.701 Y-16.451 N290 X38.738 Y-16.394 N292 X39.069 Y-15.855 N294 X52.246 Y6.97N296 X52.534 Y7.533N298 X52.776 Y8.118N300 X52.82 Y8.228N302 X53.015 Y8.83N304 X53.162 Y9.445 ……N1714 X20.276 Y-30.897 N1716 X20.841 Y-30.613 N1718 X21.381 Y-30.285 N1720 X21.894 Y-29.916 N1722 X22.159 Y-29.717 N1724 X22.641 Y-29.308 N1726 X23.09 Y-28.862 N1728 X23.501 Y-28.383 N1730 X23.7 Y-28.118N1732 X24.073 Y-27.607 N1734 X24.404 Y-27.068 N1736 X24.691 Y-26.505 N1738 X24.737 Y-26.396 N1740 X24.772 Y-26.321 N1742 X25.014 Y-25.737 N1744 X25.246 Y-25.016 N1746 X25.394 Y-24.401 N1748 X25.499 Y-23.735 N1750 X25.502 Y-23.691N1754 X25.567 Y-23.015N1756 X33.016N1758 X33.647 Y-22.97N1760 X33.963 Y-22.93N1762 X34.588 Y-22.836N1764 X35.204 Y-22.692N1766 X35.807 Y-22.5N1768 X36.694 Y-22.138N1770 X37.258 Y-21.854N1772 X37.799 Y-21.526N1774 X38.312 Y-21.156N1776 X38.57 Y-20.957N1778 X39.052 Y-20.548N1780 X39.5 Y-20.102N1782 X39.912 Y-19.623N1784 X40.105 Y-19.369N1786 X40.478 Y-18.858N1788 X40.809 Y-18.319N1790 X54.649 Y5.653N1792 G0 Z-5.88N1794 Z-3.88N1796 Z2.981N1798 X50.134 Y22.462N1800 Z-3.88N1802 Z-5.88N1804 G1 Z-6.88 F100N1806 X49.946 Y22.498 F600. N1808 X49.265 Y22.573N1810 X49.243N1812 X49. 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