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1、精选优质文档-倾情为你奉上“创业杯”数控车床技能大赛试题1用数控车床完成图所示零件的加工，此零件为配合件，件1与件2相配，配合锥面用涂色法检查，要求锥体接触面积不小于50%，零件材料为45钢。车床评分标准准考证号操作时间240min得分试题编号2系统类型序号考核项目考核内容及要求评分标准配分检测结果扣分得分备注1工件1M271.5-6g超差不得分62R6超差不得分35倒角(2处)错、漏1处扣1分26970.05每超差0.01扣1分2746-0.025IT每超差0.01扣1分38Ra3.2每降1级扣1分2924+0.033IT每超差0.01扣1分310Ra1.6每降1级扣1分220-0.033I
2、T每超差0.01扣1分3Ra1.6每降1级扣1分211360.012IT每超差0.01扣1分312Ra1.6每降1级扣1分229.6超差不得分25超差不得分423超差不得分220超差不得分222.5超差不得分215超差不得分223超差不得分264.5超差不得分3锥度1:5超差不得分413工件246+0.025IT每超差0.01扣1分314Ra1.6每降1级扣1分229.6超差不得分215M271.5-6H超差不得分616锥度1:5超差不得分41723每超差0.01扣1分218970.1每超差0.01扣1分320R6超差不得分321倒角错、漏不得分122配合螺纹配合超差不得分4锥度配合超差不得分
3、4安全文明生产1.遵守机床安全操作范围2.刀具,工具,量具放置规范3.设备保养、场地整洁酌情扣15分3工艺合理1.工件定位,夹紧及刀具选择合理2.加工顺序及刀具轨迹路线合理酌情扣15分3程序编制1.指令正确,程序完整2.数值计算正确,程序编写表现出一定的技巧,简化计算和加工程序3.刀具补偿功能运用正确,合理4.切削参数,坐标系选择正确.酌情扣15分4其他项目发生重大事故(人身和设备安全事故等),严重违反工艺原则和情节严重的野蛮操作等,由裁判长决定取消其实操竞赛资格记录员监考人检验员考评人各工序刀具的切削参数序号加工面刀具号刀具类型主轴转速n/r.min-1进给速度vf/mm.r-1件11粗车小
4、端外形T1930菱形外圆车刀8000.32精车外形T210000.13切退刀槽T3b=5切槽刀2000.14车外螺纹T460外螺纹车刀3001.55调头装夹钻孔20麻花钻500手动粗车大端外形T1930菱形外圆车刀8000.36精车大端外形T210000.17粗镗内孔T5内孔镗刀6000.38精镗内孔10000.1件29钻孔20麻花钻500手动10粗车外形T1930菱形外圆车刀8000.311精车外形T210000.112粗镗内孔T5内孔镗刀6000.313精镗内孔10000.114车内螺纹T660内螺纹车刀2001.5参考程序：O1001;（件1程序车小头）N0010 G97 G99 G40
5、 S800 M03 T0101;N0020 G00 X80.0 Z50.0;N0030 G00 X51.0 Z2.0;N0040 G71 U3.0 R0.8;N0050 G71 P60 Q180 U0.4 W0.2 F0.3;N0060 G01 X0 F0.1;N0070 Z0;N0080 G03 X20.0 Z-10.0 R10.0;N0090 G01 Z-26.5;N0100 X24.0;N0110 X27.0 Z-28.0;N0120 Z-49.5;N0130 X32.0;N0140 G03 X36.0 Z-51.5 R2.0;N0150 G01 Z-64.5;N0160 X43.0;N
6、0170 X46.0 Z-66.0;N0180 Z-77.0;N0190 G00 X80.0 Z50.0;N0200 G97 G99 G40 S1000 M03 T0202;N0210 G00 X51.0 Z2.0;N0220 G70 P60 Q180;N0230 G00 X80.0 Z50.0;N0240 G97 G99 G40 S200 M03 T0303;N0250 G00 X38.0 Z-49.5;N0260 G01 X23.0 F0.1;N0270 G04 X4.0;N0280 G01 X38.0;N0290 G00 X80.0 Z50.0;N0300 G97 G99 G40 S30
7、0 M03 T0404;N0310 G00 X29.0 Z-24.5;N0320 G92 X26.2 Z-46.5 F1.5;N0330 G92 X25.6 Z-46.5 F1.5;N0340 G92 X25.2 Z-46.5 F1.5;N0350 G92 X25.04 Z-46.5 F1.5;N0360 G00 X80.0 Z50.0;N0370 M30;O1002; （件1程序车大头）N0010 G97 G99 G40 S600 M03 T0101;N0020 G00 X51.0 Z32.5;N0030 G01 X0 F0.2;N0040 Z34.5.0;N0050 G00 X51.0;N
8、0060 G71 U3.0 R0.8N0070 G71 P80 Q110 U0.4 W0.1 F0.3;N0080 G01 G42 X28.9 F0.1;N0090 X36.827 Z14.681;N0100 G02 X46.0 Z10.0 R6.0;N0110 G01 X51.0;N0120 G00 X80.0 Z120.0;N0130 G97 G99 G40 S1000 M03 T0202;N0140 G00 X51.0 Z34.5;N0150 G70 P80 Q110;N0160 G00 X80.0 Z120.0;N0170 G97 G99 G40 S600 M03 T0505;N018
9、0 G00 X18.0 Z34.5;N0190 G90 X23.0 Z12.5 F0.3;N0200 S1000 M03;N0210 G01 X27.0 F0.1;N0215 Z32.5;N0220 X24.016 Z31.0;N0230 Z12.5 ;N0240 X18.0;N0250 G00 Z120.0;N0260 X80.0;N0270 M30;O0003; （件2程序）N0010 G97 G99 G40 S600 M03 T0101;N0020 G00 X80.0 Z50.0;N0030 G00 X51.0 Z2.0;N0040 G71 U3.0 R0.6;N0050 G71 P60
10、 Q70 U0.4 W0.2 F03;N0060 G01 X46.0 F0.1;N0070 Z-55.0;N0080 G00 X80.0 Z120.0;N0090 G97 G99 G40 S1000 M03 T0202;N0100 G00 X51.0 Z2.0;N0110 G70 P60 Q70;N0120 G00 X80.0 Z120.0;N0130 G97 G99 G40 S1000 M03 T0505;N0140 G00 X23.0 Z2.0N0150 G71 U3.0 R0.6;N0160 G71 P170 Q220 U0.4 W0.2 F0.3;N0170 G01 G41 X46.0
11、 F0.1;N0180 Z0;N0190 G02 X36.932 Z-4.67 R6.0;N0200 G01 X29.6 Z-23.0;N0210 X26.0 Z-24.5;N0220 Z-55.0;N0230 S1000 M03;N0240 G70 P170 Q220;N0250 G97 G99 G40 S200 M03 T0606;N0260 G00 X24.0 Z10.0;N0270 Z-21.0;N0280 G92 X26.3 Z-48.0 F1.5;N0290 G92 X26.9 Z-48.0 F1.5;N0290 G92 X27.3 Z-48.0 F1.5;N0290 G92 X2
12、7.47 Z-48.0 F1.5;N0300 G00 Z120.0;N0310 X80.0;N0320 G97 G99 G40 S200 M03 T0404;N0330 G00 X47.0Z-46.0;N0340 G01X24.0F0.1;N0350 G00X80.0Z120.0N0360 M30;“创业杯”数控车床技能大赛试题2用数控车床完成图所示零件的加工，毛坯为70125的棒料。车床评分标准准考证号操作时间300min得分试题编号2系统类型序号考核项目考核内容及要求评分标准配分检测结果扣分得分备注1直径65-0.019超差不得分6245-0.017超差不得分6335-0.027-0.01超差不得分6458超差不得分2551超差不得分2632超差不得分2725超差不得分2815超差不得分29长度1200.1
