X68加工工艺及夹具设计
摘要：随着机械制造产业的迅速发展，社会对生产率的要求也越来越高，所以，大批量生产成为时代的需求，而专用夹具就可以满足这一需求，它能使装夹复杂零件变得简单，对于机床夹具的设计，我们有必要对它进行深入的研究。
机械加工是一个产生零件外状的过程，在这个加工过程中，刀具要切除零件毛坯的多余材料。尽管在某些场合，工件在无装夹时，能使用移动式设备来进行加工，但大多数的机械加工是运用夹具装夹零件配合机床来完成的。本X68零件在社会上用处广需求量大，加工时需配合多种机床，设计多种加工工序进行加工。
本次毕业设计使我们能综合运用机械制造的基本原理，并结合生产实践中学到的生产知识，独立地分析和解决工艺问题，初步具备设计一X68零件的工艺规程的能力和运用夹具设计的理论和方法拟定夹具设计方案、完成夹具设计的能力，也是了解和运用相关手册、图书等技术资料及机械制图等基本技能的一次实践机遇。
关键词:机械制造； 工艺； 夹具； 加工要求；
X68 processing technology and fixture design
Abstract: along with the rapid development of mechanical manufacturing industry, it is more and more high requirements on productivity, so mass production become the era demand, and special fixture can meet this demand, it can make the clamping complex parts become simple, for machine tool fixture design, it is necessary for us to carry out further study on it.
Machining is a part of the production process, in this process, the cutting tool to cut off the spare parts of the material. Although in some occasions, in the absence of workpiece clamping, can use the mobile equipment for processing, but the majority of the machining is the use of fixture parts with the machine to complete the. The X68 parts in the community wide use demand, with a variety of machine tools for processing, design a variety of processing procedures for processing.
This graduation design enable us to the basic principle of comprehensive use of machinery manufacturing, and combining with production practice, the middle school to knowledge production, independent analysis and problem solving process, with the initial design processes of parts of a X68 and the use of the fixture design theory and method of quasi fixed fixture design, fixture design, but also understand and use the basic skills of the relevant manuals, books and other technical data and mechanical drawing, and so on a practice opportunities.
Keywords: mechanical manufacturing; technology; fixture; processing requirements;
目录
第一章绪论.............................................1
1.1本课题的研究内容和义....................................1
1.2国内外的发展概况........................................1
1.3本课题应达到的要求......................................1
第二章 零件的分析.....................................2
2.1零件的简介..............................................2
2.2 零件技术要求分析........................................3
2.3 零件结构工艺性分析......................................4
第三章 工艺路线设计...................................4
3.1确定毛坯的制造形式.......................................4
3.2基面的选择 ...............................................4
3.3制定工艺线................................................5
3.4机械加工余量、工序尺寸及毛坯尺寸的确定 ...................10
3.5 确定切削用量及基本工时...................................11
第四章夹具设计..........................................16
4.1零件的加工工艺分析........................................16.
4.2定位基准的择..............................................16
4.3定位夹紧方案的定..........................................18
4.4定位元件计................................................19
4.5定位误差算................................................19
设计小结...................................................20
致谢........................................................21
参考文献..................................................22
参考文献
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