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110柴油机飞轮壳机械加工工艺规程及工艺装备设计
——————摘要
飞轮壳式发动机上一个非常典型的零件，它一方面挂靠在柴油机缸体的后端面用于储能飞轮的防护罩；另一方面，它也是柴油机离合器壳的连接支撑部件。其外观和内在质量及影响着柴油的整体的美观程度，也影响着柴油机的整体性能。
110柴油机飞轮壳的主要结构特点是形状复杂，壁薄且不均匀，加工的部位多，加工难度大，各个加工面和加工孔均要求较高的精度。本文首先根据零件的特点对零件进行了分析，为制定工艺路线作了基础。其次，确定了零件的生产纲领、类型和毛坯的制造形式。依据第一章的分析拟定了两条工艺路线，对其进行了比较分析，综合其优缺点按照先基准后其它，先粗后精，先主后次的原则确定了加工方案，并对工序进行了详细设计。
    110柴油机飞轮壳的夹具根据该零件的特点设计，该零件属于薄壁类零件，在裝夹过程中极易变形，因而影响精度甚至破坏零件。两套工装采用了恰当的定位和夹紧，既保证了零件的精度又确保了零件的完好加工，同时减少辅助工时，提高了劳动生产率。
     本文对飞轮壳进行了详细的工艺分析及研究，对本产品的工艺及其工装的设计探索出了一条切实可行的新路。
     [关键词]  飞轮壳    工艺方案   夹具设计
                        Abstract
Flywheel housing on the engine is a very typical parts,on the one hand, it anchored cylinder diesel engine after the end of flywheel energy storage for protective enclosures; the other hand, It is also the connecting support components of the housing of Diesel clutch. The external and internal quality of flywheel housing either impact on the overall diesel beautiful or affect the overall performance of diesel engines.
the main structure of the flywheel housing of 110 diesel engine  is the complex shape, thin wall and uneven, processing site, difficult process, various surface processing and processing Kong have higher accuracy. In this paper,the development of routes were based on the characteristics of components of the analysis components. Secondly, the identification of the parts of the production program, the type and manufacturer of rough form. Based on the first chapter of the analysis of two routes, its comparative analysis, According to its comprehensive advantages and disadvantages of other first benchmark, the first after crude refined, after the first meeting of the main principles of the machining program, as well as procedures for the detailed design.
the fixture parts of  the flywheel housing of 110 diesel engine according to of the design characteristics of the thin-walled parts is parts. Clamping in the process vulnerable to deformation, thus affecting the accuracy or even damaged parts. Equipment used two sets of the appropriate positioning and clamping, ensuring the accuracy of the components also ensure the integrity of the parts processing, Auxiliary while reducing working hours, improved labor productivity.
In this paper, the flywheel housing was made a detailed technical analysis and research. the technology and equipment of a design was explored a new practicable path for this product.
Key word: Flywheel housing、Technology Program、machining, design suits

目  录
1  绪论 …………………………………………………………………………… 1
2  零件分析…………………………………………………………………………… 2
2.1  飞轮壳加工方案设计要点………………………………………………………2
2.1.1  基准的选择  ………………………………………………………………… 2
2.1.2  粗、精加工的划分  ………………………………………………………… 2
2.1.3  次要小表面及孔的加工……………………………………………………… 2
2.1.4  热处理的安排  ……………………………………………………………… 2
2.1.5  辅助工序的安排  …………………………………………………………… 3
2.2  飞轮壳的工艺特点  …………………………………………………………… 3
2.3  飞轮壳的加工特点  …………………………………………………………… 3
2.4  飞轮壳的技术要求分析  ……………………………………………………… 3
3  工艺规程设计  …………………………………………………………………… 5
3.1  生产纲领和生产类型的确定  ………………………………………………… 5
3.2  确定毛坯制造形式  …………………………………………………………… 5
3.3  制定工艺路线  ………………………………………………………………… 5
3.3.1  制定工艺路线需要注意的问题  …………………………………………… 5
3.3.2  工艺方案的分析与比较  …………………………………………………… 7
3.3.3  工艺方案的比较与分析 …………………………………………………… 10
4  机械加工余量、工序尺寸、及毛坯尺寸的确定 ……………………………… 14
4.1  加工余量的确定 ……………………………………………………………… 14
4.2  工序尺寸的确定 ……………………………………………………………… 14
5  切削用量及工时的计算 ………………………………………………………… 18
6  夹具的设计 ……………………………………………………………………… 43
6.1  夹具的定义与分类 …………………………………………………………… 43
6.2  夹具的用途和优点 …………………………………………………………… 43
6.3  夹具设计的特点 ……………………………………………………………… 43
6.4  夹具设计的基本要求 ………………………………………………………… 44
6.5  本设计中具体夹具的工作机理 ……………………………………………… 44
6.5.1  铣床夹具 …………………………………………………………………… 44
6.5.2  镗床夹具 …………………………………………………………………… 45
7  结论 ……………………………………………………………………………… 48
致 谢 ………………………………………………………………………………… 49
参考文献 ……………………………………………………………………………  50
英文原文及翻译