机械5

摘要 由于数控技术的广泛运用，数控已经是加工制造业重要的组成部分，有一套完善的加工流程对数控铣削有着至关重要的作用。本次设计是零件的工艺分析来设计的，主要任务是选择合适的机床、刀具、夹具、量具，通过对零件的形状、设计基准以及技术要求来进行加工工艺分析，制定工艺卡片。 本次设计共分为五章。第一章是对数控技术的简单介绍。第二章是零件图纸的分析。第三章是加工工艺分析，包括了零件加工内容分析、加工方案的确定、确定装夹方案、加工机床的选择。第四章是刀具与切削用量的选择以及拟定数控铣削加工工艺卡片。第五章讲述了使用编程软件对零件进行编程加工仿真的过程。 关键词:数控加工、加工工艺、UG、工艺分析 Abstract Because of thewide applicatio
n of tech
nology, NC has become a
n importa
nt part of ma
nufacturi
ng i
ndustry, a
nd a complete set of processi
ng flow plays a
n importa
nt role i
n the cutti
ng. This desig
n is desig
ned by the process a
nalysis of parts. The mai
n task is to select the appropriate machi
ne tools, tools, fixtures a
nd measuri
ng tools. By a
nalyzi
ng the shape, desig
n basis a
nd tech
nical requireme
nts of the parts, the process card is developed. The desig
n is divided i
nto five chapters. The first chapter is a brief i
ntroductio
n to NC tech
nology. The seco
nd chapter is the part drawi
ng a
nalysis. The third chapter is the processi
ng tech
nology a
nalysis, i
ncludi
ng the part processi
ng co
nte
nt a
nalysis, the processi
ng pla
n determi
natio
n, the determi
natio
n clampi
ng scheme, the processi
ng machi
ne tool choice. The fourth chapter is the choice of cutti
ng tools a
nd cutti
ng parameters a
nd drawi
ng up NC milli
ng process card. The fifth chapter describes the process of programmi
ng a
nd simulatio
n of partswith programmi
ng software. Keywords: NC machi
ni
ng, processi
ng tech
nology, UG, process a
nalysis 目录 摘要I Abstract II 第一章绪论1 1.1数控技术的发展1 1.2数控铣床的简介1 1.3本课题研究的内容2 1.4本课题研究的目的及意义2 第二章工艺性分析3 2.1零件图3 2.2零件加工工艺性分析4 2.3零件加工工艺性分析4 2.3.1加工表面的技术要求分析4 2.3.2加工表面的技术要求分析4 第三章工艺规程设计5 3.1毛坯的选择5 3.2定位基准选择5 3.3加工方法的选择5 3.4工序的划分6 3.5数控机床的选择8 3.6夹具的选择9 3.7刀具的选择9 第四章工艺参数选择10 4.1切削用量的选择原则10 4.2切削用量的选择10 第五章加工程序编制及仿真加工13 5.1数控编程的分类13 5.2数控编程13 5.2.1创建几何体14 5.2.2创建刀具16 5.2.3型腔铣加工设置17 5.2.3钻孔加工设置18 5.3仿真加工及后处理20 总结23 致谢24 参考文献25