发动机汽缸盖半圆槽数控铣床的研究

摘要

摩托车发动机汽缸盖安装曲轴的孔为半圆槽,其两端不通,孔径和深度精度要求高.设计专用的双主轴数控卧式铣床,用半球头铣刀经过粗、精铣削二道加工工序来加工半圆槽.合理设计铣刀的加工线路,达到减少辅助时间,提高生产效率,满足零件加工精度的要求.%Holes for mounting crankshafts of motorcycle cylinder heads are half slots, both ends of which are impassable, requiring high precision of bore diameter and depth. For specially designed NC horizontal milling machine tools with double spindles, half ball milling cutters are used to machine half slots via rough and finish milling processes. The machining line of milling cutters should be designed in a rational manner, so as to reduce non-cutting time, improve production efficiency and satisfy requirements for machining accuracy of spare parts.