车床离合齿轮零件的机械加工工艺规程和专用夹具设计
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- 车床离合齿轮零件的机械加工工艺规程和专用夹具设计
车床离合齿轮零件的机械加工工艺规程和专用夹具设计
摘要： 本文介绍了离合齿轮的加工工艺设计过程及其专用夹具的设计过程。通过本设计进一步了解了机械加工工艺设计过程的一般方法和步骤。联系生产现场实际条件进行工艺方案的比较选择适当方案；掌握根据生产的要求设计专用机床夹具的方法。
本文内容包括：机械加工工艺的组成，工艺过程的作用，工艺规程的作用，工艺规程的设计原则，生产纲领的计算和生产类型的确定，毛坯的制造形式，制造工艺中基准的选择，零件的尺寸、形状误差和位置误差的分析，机械加工工艺路线的确定，各个工序的加工余量、工序尺寸。尺寸公差的确定及某些刀具的几何参数的选择和常见的金属切削机床的选用，机械加工各工序的切削深度、进给量、些小速度的确定，机械加工工时的计算，专用夹具设计的基本要求，专用设计的依据、夹具装置的选择、夹紧力的估算、定位误差的分析、夹具的操作说明。本文介绍的各个工序都要保证使用功能要求、提高劳动生产率，保证加工质量、降低劳动强度，注意劳动保护和环境保护，提高可靠性出发进行各个工序的工艺和夹具的比较和制定。为了更好的了解各国先进的工艺技术文本还选择了两篇相关的英文文献进行了可供读者参考。
关键词：机械加工；工艺；机械加工余量；工序；夹具；机床
Mechanical machining lathe clutch gear parts and special fixture design
Abstract： In this paper, the processing gear off the design process and its dedicated fixture design process. Through the design of a better understanging of the engine machining process of the gengral process design methods and steps. Contace production at the scene of the actual conditions of the programme compared select the apptopriate progrannes; master in accordance with he requirements of the production design for the machine tool fixture methods and in accordance with commercial interesrs of the programme compared with the technical and economic analysis.
This areicle includes: the composition of mechanical processing technology, the role of a point of order, the order of the design principles, the calculation of the Ptogramme of production and production types of identification, the rough form of manufacturing, manufacturing process in the choice of benchmarks, spare parts The size,shape and location of error of error, mechanical processing line of development, the variots processes machining allowance,process size, Tolerance and the determination of certain tools geometric parameters of common metal-cutting dpeed the identification, machining wotking hours, the fixture design gor the basic requirements, rhe basis for fixture design, the choice of fixture installation, the clamping force estimamates, positioning error the analysis, fixture instructions. This paper describes the various processes are guaranteed from the use of functional requirements, raising labor producticity, and ensure ptocessing qualitu, reduce labor intensity and attention to labor protection and environmental protection, to improve the reliability of the process and the process of comparison and the development of fixture. In order to better understand the countrides of advanced technology has also selected the two texts related to English literature afeference for readers.
Keywords: Engine machining ; process;machining allowance；processes; fixture; Machine
目 录
摘要 ………………………………………………………………………………………Ⅰ
Abstract …………………………………………………………………………………Ⅱ
目录…………………………………………………………………………………………Ⅲ
绪论 …………………………………………………………………………………………1
第1章 零件的分析………………………………………………………………… 2
1.1零件的作用 ………………………………………………………………………2
1.2零件的工艺分析及生产类型的确定 ……………………………………………2
第2章 工艺规程的设计 ……………………………………………………………3
2.1选择毛坯，确定毛坯尺寸，设计毛坯图 ………………………………………3
2.2 基准的选择………………………………………………………………………3
2.3 确定毛坯的制作方式 ……………………………………………………………4
2.4 机械加工余量，毛坯尺寸的确定………………………………………………4
2.5制定工艺路线 ……………………………………………………………………7
2.6选择加工设备和工艺设备…………………………………………………………8
2.7确定切削用量及基本时间 ………………………………………………………9
第3章 机床夹具设计 ………………………………………………………………18
3.1 机床夹具介绍……………………………………………………………………18
3.2 现代夹具的发展方向……………………………………………………………18
3.3 机床夹具的定位及夹紧 ……………………………………………………… 19
3.4 工件的装夹方式 ……………………………………………………………… 21
3.5 基准及其分类 …………………………………………………………………22
3.6 工件的定位………………………………………………………………………23
3.7 常见定位方式及定位元件 ……………………………………………………24
3.8 工件的夹紧 ……………………………………………………………………25
3.9 设计宗旨 ………………………………………………………………………27
3.10 夹具设计 ………………………………………………………………………27
3.11 工件定位误差分析 ……………………………………………………………27
3.12 夹具简介 ………………………………………………………………………28
结论 …………………………………………………………………………………………30
致谢 …………………………………………………………………………………………31
参考文献 …………………………………………………………………………………32
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