数控加工工艺与编程课程设计.doc

沈 阳 工 程 学 院课 程 设 计设计题目： 数控加工工艺与编程课程设计 系 别 机械工程系 班级 学生姓名 学号 指导教师 职称 讲师 起止日期：2012年12月24日起至2013年1月6日止目录数控车床加工工艺与编程- 1 -1.工艺分析- 1 -2.工艺设计- 1 -3.加工程序- 1 -数控铣床加工工艺与编程- 3 -1.工艺方案设计- 3 -1）装夹方案- 3 -2）加工工艺过程及刀具参数的选择- 3 -2. 加工程序- 4 -3.自动加工程序截图- 10 -参考资料目录- 12 - 数控车床加工工艺与编程1.工艺分析图中零件，其成品最大直径为48mm，可采用54mm的圆柱棒料加工，保证各加工表面间具有较高的相互位置精度。装夹时注意控制毛坯外伸量，提高装夹刚性。2.工艺设计根据零件加工要求，端面采用可转位硬质合金90偏头端车刀，轮廓粗、精车均采用可转位硬质合金93偏头车刀，螺纹退刀槽采用宽4mm机夹硬质合金切槽刀，螺纹采用可转位硬质合金外螺纹刀，以便采用较高的切削速度，从面提高加工质量和效率，最终切断采用宽4mm高速钢切断刀。具体过程见表1. 表1 加工工艺过程加工步骤加工内容要求刀具主轴转速或切削速度进给量/（mm/r）备注1夹一端粗车端面,T01可转位硬质合金90偏头端面车刀50r/min0.32 粗车外圆轮廓，留单边余量0.2mm。T02可转位硬质合金93偏头外圆车刀 50r/min0.3G713 精车外圆轮廓至要求。T02可转位硬质合金93偏头外圆车刀 80r/min0.2G704切17段槽。T03宽4mm机夹硬质合金切槽刀60r/min0.15车螺纹T04可转位硬质合金外螺纹刀60r/min 0.15G766切断T05宽4mm高速钢切断刀20r/min0.2右刀尖刀补7车球面T01可转位硬质合金90偏头端面车刀100r/min0.3G033.加工程序O0001N10 G54 F0.3 S800 M03 T0101;N20 G50 S2000;N30 G96 S50;N40 G00 S54 Z0.2;N50 G01 X-2;N60 G00 X54 Z2;N70 G96 S80;N80 Z0;N90 G01 X-2 F0.15;N100 G30 U0 W0;N110 T0202N120 G00 X56 Z2 ;N130 G96 S50;N140 G71 U2 R1;N150 G71 P160 Q270 U0.4 W0.2 F0.3;N160 G00 X0;N170 G01 Z0 F0.2;N180 G01 X19.8 Z-30;N190 X20 Z-38;N200 Z-53N210 X48 Z-57;N220 Z-61;N230 X30 Z-65;N240 Z-71;N250 X48 Z-75;N260 Z-79;N270 X60;N280 G96 S80;N290 G70 P160 Q270;N300 G30 U0 W0;N310 T0303N320 G96 S60;N330 G00 X20;N340 G01 X17;N350 G00 X20;N360 G30 U0 W0;N370 T0404;N380 G00 X25 Z0 S500;N390 G76 P0260 Q100 R0.05;N400 G76 X18.376 Z-26 R0 P1300 Q300 F2;N410 G30 U0 W0N420 T0505;N430 G96 S20;N440 G00 X56 Z-95;N450 X-1;N460 G30 U0 W0;N470 M30;O1002N10 G55 F0.3 S600 M03 T0101;N20 G96 S100;N30 G50 S3000;N40 G71 U2 R1;N50 P110 Q160 U0.4 W0.2 F0.3;N60 X0 Z0;N70 G03 Z-10;N80 G01 X-1 F0.1;N90 X41.9835;N100 Z-16;N110 X48:N120 G30 U0 W0;N130 M30 数控铣床加工工艺与编程1.工艺方案设计1）装夹方案毛坯为150mm100mm34mm长方块（150mm100mm四面已加工），材料为45锻件用平口虎钳装夹工件，工件上表面高出钳口15mm左右，校正固定钳口的平行度以及工件上表面的平行度，确保精度要求。2）加工工艺过程及刀具参数的选择加工步骤加工内容要求刀具号刀具规格主轴转速/（r/min）进给速度/（mm/min）1铣平面，保证尺寸30.01mmT0160mm面铣刀3002002铣削144*94凹槽1T026mm四刃立铣刀10001203铣凹槽2T0316mm四刃立铣刀1000804粗镗12mm孔T0412mm粗镗600805粗镗18mm孔T0518mm粗镗600806精镗12mm孔T0312mm精镗刀600807精镗18mm孔T0518mm精镗刀600808点孔加工T066mm中心钻9001009钻6孔加工T076mm直柄麻花钻90010010铰6孔加工T086mm机用铰刀9001002. 加工程序 铣工件下表面，选择40圆中心为坐标原点，下表面为工件坐标系Z=0的面，选择距离工件表面5mm处为安全平面，工件坐标系为G54.O1001N10 G90 G54 G00 X130.0 Y25.0 S300;N20 G00 Z5.0 M03;N30 Z-1.5;N40 G01 X-130.0 F200;N50 G00 Y-25.0;N60 G01 X130;N70 G00 Z5.0 X130.0 Y25.0 S600;N80 Z-2;N90 G01 X-130.0 F100;N100 G00 Y-25.0；N110 G01 X130.0；N120 G00 Z200.0 M05；N130 X250.0 Y180.0；N140 M30铣工件上表面，选择40圆中心为坐标原点，上表面为工件坐标系Z=0的面，选择距离工件表面5mm处为安全平面，工件坐标系为G55.O1002N10 G90 G55 G00 X130.0 Y25.0 S300;N20 G00 Z5.0 M03;N30 Z-1.5;N40 G01 X-130.0 F200;N50 G00 Y-25.0;N60 G01 X130;N70 G00 Z5.0 X130.0 Y25.0 S600;N80 Z-2;N90 G01 X-130.0 F100;N100 G00 Y-25.0；N110 G01 X130.0；N120 G00 Z200.0 M05；N130 X250.0 Y180.0；N140 M30自动加工生成程序- 11 -G71O1003N0010T1M06S1000M03G00X-69.Y-44.G43Z32.H01G01Z27.F3.X69. 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