摘要本文主要研究机车气缸缸盖数控加工工艺和夹具的设计，机车气缸缸盖是机车气缸的重要的组成部分，它在气缸体上部封闭的燃烧室，并与活塞顶部一起形成燃烧室。随着发动机技术的飞速发展现代气缸盖的结构也越来越复杂，加工难度越来越大，精度要求越来越高。而且先进的内燃机越来越多地倾向于采用多气门机构这使得气缸盖加工变得越来越困难，气缸缸盖的加工工艺以及夹具设计一直以来是国内外加工的重点，难点。本课题主要研究机车气缸缸盖加工工艺以及专用夹具的设计，夹具设计旨在能够达到快速装夹，定位。结合实际，确保加工质量的前提下，达到提高生产速率，降低生产成本关键词关键词：气缸盖加工工艺专用夹具IABSTRACTThispaperstudiesmotorcyclecylinderheadmachiningprocessandfixtureItdesign，motorcyclecylinderheadisanimportantpartofthecylinder。closedintheupperpartofthecylindercombustionchamber,andtogetherformacombustionchamberandpistontop。Withtherapiddevelopmentofmodernenginetechnologystructureofthecylinderheadmoreandmorecomplex,moreandmoredifficultprocess,moreandmorehighprecision。Andadvancedinternalcombustionenginestendtousemoreandmoremulti-valvecylinderheadbodywhichmakesitincreasinglydifficult,andthecylinderheadofthefixturedesignprocesshasalwaysbeenthefocusofdomesticprocessinganddifficultThemaintopicofmotorcyclecylinderheadprocessingtechnologyandadedicatedfixturedesign,fixturedesigntobeabletoachieverapidclamping,positioning.Reality,thepremiseofensuringthequalityofprocessing,toincreaseproductionrates,lowerproductioncostsKeywords:cylinderhead;processing;specialfixtureII目录摘要.................................................................................................................................IABSTRACT..................................................................................................................II第1章绪论....................................................................................................................11.1气缸缸盖简介......................................................................................................11.2气缸缸盖国内外发展的现状..............................................................................11.3本次论文研究的内容和意义.............................................................................1第2章气缸缸盖的工艺设计........................................................................................32.1机车气缸缸盖的三维建模...................................