大流量针阀体导向轴孔超声振动钻削加工工艺  

Ultrasonic Vibration Drilling Process of Guide Shaft Hole of Large Flow Needle Valve

作　　者：陈建军 李全平 曹宇轩 马丹 胡守琦 CHEN Jian-jun;LI Quan-ping;CAO Yu-xuan;MA Dan;HU Shou-qi(Shanxi Diesel Engine Industry Co.Ltd.,Datong 037036,China)

机构地区：[1]山西柴油机工业有限责任公司,山西大同037036

出　　处：《工程建设与设计》2020年第18期124-126,224,共4页Construction & Design for Engineering

基　　金：国防科工局基础产品创新计划车用动力科研专项(DEDPZF)。

摘　　要：以某种型号的大功率重载柴油机高压燃油喷射系统喷油器针阀体导向轴孔加工为实物应用对象,重点介绍大流量高压共轨喷油器针阀体导向孔加工和表面完整性控制方法,提出了基于超声振动钻削的制造过程控制策略。研究表明,通过关键工艺改进与试验验证,使高压共轨喷油器针阀偶件高频高速运动灵活性和稳定性得到较大改善。Taking the injector needle body orifice machining ofhigh pressure fuel injection system of a kind ofhigh-power heavy-duty diesel engine as the object of physical application,this paper mainly introduces the method of needle valve body orifice machining and surface integrity control for high pressure common rail injector,and puts forward the manufacturing process control strategy based on ultrasonic vibration drilling.The research shows that the high frequency and high speed movement flexibility and stability of needle valve couplers ofhigh pressure common rail injector can be greatly improved through key process improvement and test.

关 键 词：共轨喷油器 针阀偶件 导向轴孔 超声振动钻削 表面完整性 

分 类 号：TH161[机械工程—机械制造及自动化]