文档介绍：摘要
本设计通过对内燃机铝活塞加工技术的发展、活塞的工作环境以及结构特点的分析,确定了活塞的加工过程及加工方案,其中主要包括:生产纲领和生产类型的确定、材料的选择、毛坯的制造方法、机械加工余量的确定、各加工工序切削用量的确定、工序时间的计算以及工序卡片的编制。最后,进一步选择并设计了两套典型的机床夹具,精镗销孔夹具设计和钻油孔夹具设计,其中主要包括:定位方案与夹紧方案的设计,分度装置的设计、两套夹具的工作原理以及在夹具设计过程中应该注意的问题。经过设计分析和论证,活塞的工艺设计与夹具设计是可行的。
关键词:活塞,工序,机床夹具,机械加工工艺
ABSTRACT
In the paper of this graduation design ,through prehensive explication of the developing of aluminum piston of the bustion engine whose the machining technologies,the surrounding of working and the analysis of structural of the is conformed the technology process and arrange for process of piston. It mainly includes:produce outline and produce type to be conformed,choose material,the manufacturing method of the semi-finished product of material,the amount of remaining of machine process to be conformed ,the cutting dosage of each process to be conformed,calculated the working procedure time and draw up the working ,chose and designed two sets of typical model of tool machine tongs,designed the tongs of drilling the oil bore and designed the tongs of the milling mainly includes among them:the position project and the pressure designed,the cet degree design,two sets of wrok principles of tongses and what we must be notice in the process of the piston the analysis and argument,the arts and crafts design and the tongs design of the piston is viable.
Keywords : Piston,Working procedure,Machine tongs,Manufacture process technology
目录
摘要 I
ABSTRACT II
1 绪论 1<br和发展趋势 1
面临的发展机遇 1
市场竞争的三国演义 2
3
本课题的基本内容,预计可能遇到的困难,提出解决问题的方法和措施 3
本课题拟采用的研究手段(途径)和可行性分析 4
2 活塞结构特点 5
活塞的工作环境及承受的作用力 5
活塞的结构特点 5
3 活塞的工艺规程的制订 8
机械加工工艺过程的基本概念 8
工序、工步和工作行程 8
安装与工位 8
制订机械加工工艺规程的原始资料及活塞的工艺分析 8
产品的零件图(见图纸) 8
产品验收的质量标准 8
产品的生产纲领和生产类型 9
活塞的材料及毛坯制造 10
材料选择 10
毛坯的选择 10
铸造斜度 11
铸造圆角及半径 11
确定的机械加工余量 12