N939 Y42.17 Z-11.797 N940 Y42.75 Z-11.495 N941 X-21.

N942 Y43.302 Z-11.144 N943 Y43.821 Z-10.745 N944 Y44.303 Z-10.303 N945 Y44.745 Z-9.821 N946 Y45.144 Z-9.302 N947 Y45.495 Z-8.75 N948 X21.

N949 Y45.797 Z-8.17 N950 Y46.048 Z-7.565 N951 Y46.244 Z-6.941 N952 Y46.386 Z-6.302 N953 Y46.471 Z-5.654 N954 Y46.5 Z-5. N955 X-21. N956 Z-34. N957 M5 N958 T5 M6 N959 S500 M3

N960 G0 X-45. Y20. N961 G43 Z-34. H5 M7

N962 G81 X-45. Y20. Z-23.803 R3. F300. N963 X45. Y-20. N964 G80 N965 G0 Z-34. N966 M5 N967 T6 M6 N968 S500 M3

N969 G0 X21. Y-29. N970 G43 Z-34. H6 M7

N971 G81 X21. Y-29. Z-24.704 R3. F300. N972 X50. Y0. N973 X21. Y29. N974 X-21. N975 X-50. Y0. N976 X-21. Y-29. N977 G80 N978 G0 Z-34. N979 M5 N980 T7 M6 N981 S1000 M3 N982 G0 X21. Y-29.

N983 G43 Z-34. H7 M9

N984 G85 X21. Y-29. Z-13. P2000 R3. F450. N985 X50. Y0. N986 X21. Y29. N987 X-21. N988 X-50. Y0. N989 X-21. Y-29. N990 G80 N991 G0 Z-34. N992 M5 N993 M30 %

二 轴

（1）零件尺寸：

棒料：45# 直径55长度155

（2）.零件的加工工艺

①粗加工右侧阶梯轴。刀具类型采用左手R1车刀. ②精加工右侧阶梯轴。刀具类型采用左手R0.1车刀.

③加工Φ35*5凹槽。刀具类型采用车削坡口，刀具材料类型：HSS. ④加工Φ20*5凹槽。刀具类型采用车削坡口，刀具材料类型：HSS. ⑤粗加工左侧阶梯轴。刀具类型采用右手R1车刀. ⑥精加工左侧阶梯轴。刀具类型采用右手R0.1车刀.

⑦加工Φ20*5凹槽。刀具类型采用车削坡口，刀具材料类型：HSS. ⑧加工Φ7孔。刀具类型采用Φ7基本钻头，刀具材料：HSS ⑨孔加工攻丝。刀具类型采用Φ8基本钻头，刀具材料：HSS （3）零件NC仿真分析

（4）G

代码

%

N1 S1200 M3 N2 G0 Z156. N3 X30.7 Y0.

N4 G1 X26.5 F500. N5 Z.975 N6 X30.7 N7 G0 Z156.

N8 G1 X24.833 F500. N9 Z90.288

N10 X26.061 Z89.061 N11 G18

N12 G2 X26.5 Z88. I-1.061 K-1.061 N13 G1 X28.7 N14 G0 Z156.

N15 G1 X23.167 F500. N16 Z91.491

N17 G2 X24.061 Z91.061 I-.167 K-1.491 N18 G1 X24.833 Z90.288 N19 X27.033 N20 G0 Z156.

N21 G1 X21.5 F500. N22 Z91.5 N23 X23.

N24 X23.167 Z91.491 N25 X25.367 N26 G0 Z156.

N27 G1 X19.625 F500. N28 Z125.496

N29 X21.061 Z124.061

N30 G2 X21.5 Z123. I-1.061 K-1.061 N31 G1 X23.7 N32 G0 Z156.

N33 G1 X17.75 F500. N34 Z126.5 N35 X18.

N36 G2 X19.061 Z126.061 I0. K-1.5 N37 G1 X19.625 Z125.496 N38 X21.825 N39 G0 Z156.

N40 G1 X15.875 F500. N41 Z126.5 N42 X19.95