发电机组气缸头气门精加工专用夹具设计  

Cylinder Head Valves of Generating Units Finishing Special Fixture Design

作　　者：肖铁忠[1] 黄娟[1] 罗静[2] 

机构地区：[1]四川工程职业技术学院车辆工程系,四川德阳618000 [2]重庆理工大学汽车零部件先进制造技术教育部重点实验室,重庆400054

出　　处：《组合机床与自动化加工技术》2015年第3期147-148,160,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：重庆市教委科学技术研究项目资助(KJ130806)

摘　　要：气缸头是发动机的配气元件,是发动机最重要的零部件之一,其气门的加工精度将直接决定发动机的品质与性能。文章针对某通用发电机组发动机气缸头气门精加工精度要求,通过分析其技术难点,确定了气门的精加工工艺方案,根据工艺方案,制定了工件的定位夹紧方案,并设计了专用夹具的结构,说明了专用夹具的工作原理。通过夹具的实际应用并对工件实际加工实验,测得气门的各项精度均达到或超过企业的技术要求,气缸头的生产节拍为0.63min/件,实际生产能力达到36万件/年。Cylinder head is a valve train of the engine,and is one of the most important parts of the engine,so its precision valve will directly determine the quality and performance of the engine. In this paper,aimed at engine cylinder head valve finishing accuracy requirement of a generic Generating units,by analyzing its technical difficulties,the valve finishing process plan was determined. According to the process plan,a positioning and clamping program of the workpiece was developed,and special fixture structure was designed,and then operational principle of this special fixture was illustrated. Through the practical application of this fixture and actual processing workpiece experiments,the accuracy of the measured valves all meet or exceed the technical requirements of the enterprise. The cylinder head tact is 0.63 min/parts,and the actual production capacity reaches 360,000/year.

关 键 词：气缸头 气门 专用夹具 结构设计 

分 类 号：TH122[机械工程—机械设计及理论] TG506[金属学及工艺—金属切削加工及机床]