缸盖喷油孔加工圆度及其稳定性分析  

Analysis on Roundness and Stability of Cylinder Head Oil Injection Hole Machining

作　　者：彭存远 金镭 朱子健 Peng Cunyuan;Jin Lei;Zhu Zijian(Engine Plant of Bei-jing Benz Automotive Co.,Ltd.,Beijing 100176,China;不详)

机构地区：[1]北京奔驰汽车有限公司发动机厂,北京市100176 [2]北京奔驰汽车有限公司

出　　处：《工具技术》2022年第7期116-119,共4页Tool Engineering

摘　　要：针对缸盖喷油孔圆度超差、稳定性差以及刀具寿命较低等问题,结合缸盖生产线工艺及刀具设计图,提出其粗精加工解决方案。通过新增一把钻孔刀、减少粗加工铰孔半径和深度等方式,增加精加工刀铰孔时的稳定性。实际应用效果证明,改进方案可以大幅度提高刀具寿命和减少换刀频次,保证喷油孔圆度及其加工稳定性。During the machining process of cylinder head oil injection hole, the unstable phenomenon is occurred, such as the roundness out of tolerance, poor stability and short tool life.After the comparison and research for the process and tool drawing, a new cutting strategy of BBAC cylinder head line is presented by increasing a new drilling step and reducing the cutting diameter of the pre-reamer, and it successfully increases the tool lift, the roundness of the oil injection hole and the cutting process is stabilized.

关 键 词：缸盖加工 喷油孔 圆度 粗精加工 工艺改进 

分 类 号：TG52[金属学及工艺—金属切削加工及机床] TH161.12[机械工程—机械制造及自动化]