复杂曲面实验报告.doc

电 子 科 技 大 学实 验 报 告学生姓名：吴迪 学 号：2601305007 指导教师： 刘科 郭娟 实验地点： 成都市模具园 实验时间：周三14：3017：55一、实验室名称：金工实习基地 二、实验项目名称：零件的数控加工工艺规程编制三、实验学时：32四、实验原理：1、在数控机床上加工零件时，是把事先写好的加工程序输入到数控机床的数控系统，而后由数控机床自动的完成零件的加工过程。2、在数控机床加工零件，编制加工程序前，首先应根据零件图样进行工艺分析、处理，编制加工工艺，然后才能编制加工程序。3、数控铣床加工进给路线对零件的加工精度和表面质量有直接影响，同时，进给路线的长短及合格是否，还影响到加工的生产效率。五、实验目的：1、了解先进的数控加工技术，熟悉数控机床的基本性能2、学会运用Mastercam软件绘制复杂零件图形，掌握加工方法。3、掌握复杂零件的加工工艺，学会工件的装夹及对刀。六、实验内容：分析零件图样，加工零件的工艺处理，数值计算，编写加工程序单。1、 绘制曲面图形。前视图绘制连续线：（0，0）（0，12）（6，12）（20，4）（35，4）（35，0）（0，0）7个点，导园角R2。等角视图做旋转曲面。在深度z=-5做5个实体曲面，第一个h=20，r=4.5，z轴，原点。再做一个h=15，r=4.5，z轴，（28，0），接着用转换下的旋转复制（3，900）。曲面修整，上面一次，下面一次，删除多余的图素。用转换平移，把曲面移到z0下面。2、绘制三视图，标注尺寸、公差制作的零件都经过倒圆角，切倒角圆的半径为3mm。零件名称底座材料硬铝比例1：1技术要求工件表面为Ra1.6 3、编制工艺规程：粗加工面铣，外形铣削，挖槽。精加工3D等高外形铣削，放射状外形铣削。编制工艺卡。工艺步骤刀具型号刀具直径(mm)主轴转速(rpm)进给速度(mm/min)切削深度(mm)切削余量(mm)1、面铣圆柱铣刀81000100002放射状外形铣削圆柱铣刀81000100121下刀速度 30 最大切削深度 2精修次数 1提刀速度500Z轴进给量 1精修量 0.53、挖槽圆柱铣刀 8 1500100 100下刀速度 30 最大切削深度 2精修次数 1提刀速度500Z轴进给量 1精修量 0.5精加工放射状外形铣削圆柱铣刀 81000100120下刀速度 30 最大切削深度1精修次数 0提刀速度500Z轴进给量 1精修量0主轴转速N=1000VC/D（VC是切削速度，D是铣刀直径） 进给速度F=Nzf (N是主轴转速， z是铣刀齿数， f是每齿进给量)4、执行后处理,生成程序.N130 X9.3056 Z17.2003N132 X9.5514 Z17.1225N134 X9.796 Z17.0413N136 X10.0393 Z16.9566N138 X10.2812 Z16.8685N140 X10.5217 Z16.777N142 X10.7607 Z16.6821N144 X10.9982 Z16.5839N146 X11.2339 Z16.4824N148 X11.468 Z16.3777N150 X11.7003 Z16.2698N152 X11.9308 Z16.1587N154 X12.1593 Z16.0445N156 X12.3859 Z15.9272N158 X12.6105 Z15.807N100 G53N102 G90N104 T1 .01 M06N106 S1000 M03N108 G00 X0. 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