00零件尺寸
摘要
本设计涉及到机械制造工艺及机床夹具设计、金属切削机床、公差和测量等方面的知识。
后支架的加工工艺和夹具设计包括三个部分,包括工艺设计、工序设计和专用夹具设计。在设计的过程中应该首先理解的分析部分,工序过程的设计一个毛坯的结构,并选择好零件的加工基准,设计出零件的工艺路线;然后每个切削用量的部分步骤大小计算,是决定工艺的关键设备和切割过程的各种设计参数,然后一个专用夹具,夹具选择各种组件的设计,如定位和夹紧元件连接部分,导向元件,夹具和机床和其他组件,定位误差计算夹具,分析夹具结构的合理性和不足之处,改进和设计。
关键词:工序、工艺、切削参数、夹紧、定位、误差。
ABSTRCT
This design relates to the mechanical manufacturing technology and machine tool fixture design, metal cutting machine tools, tolerances and measurements, and other aspects of knowledge.
The machining process and fixture design of the base consists of three parts, including process design, process design and special fixture design. In design process should first understand the analysis, structure of the process design of a blank, and choose the good parts machining reference to design parts of the process route; then calculate the amount of each cutting part of the step size, the decision process of key equipment and cutting process of various design parameters and a special fixture, the fixture selection design of various components, such as positioning and clamping elements connecting part, component oriented, tools and fixtures and other components, positioning error calculate fixture, fixture structure of rationality and disadvantage analysis, improvement and design.
Key words: process, process, cutting parameters, clamping, positioning, error.
目录
ABSTRCT 3
序言1
一零件的分析2
1.1零件的作用2
1.2零件的精度分析2
1.3零件的工艺分析2
二工艺规程设计4
2.1确定毛坯的制造形式4
2.2机械加工余量的的确定4
2.3毛坯尺寸的确定5
2.4工序余量的确定5
2.5基面的选择6
2.6制定工艺路线7
2.7确定切削用量及基本工时9
三钻孔夹具设计12
3.1钻床的概述12
3.2问题的提出13
3.3定位基准的选择13
3.4定位方案的设计14
3.5夹紧方案的设计15
3.5.1典型夹紧结构15
3.5.2定心夹紧机构15
3.6切削力和夹紧力的计算16
3.7钻模板的选择16
3.8钻套的设计20
3.8定位误差分析24
3.9夹具设计及操作的简要说明25
总结26
致谢28
参考文献29
夹具装配图
零件图
工序卡
芯轴
