零件图A3
柱塞泵体加工工艺及夹具设计
摘要
夹具是零件加工的夹紧装置，是加工零件的一种必不可少的装置。夹具利用率高，经济性好，对功能组件的使用和数量少。随着零件的尺寸变化，越来越多的夹具被淘汰了，因此，设计一套专用夹具是十分有必要的。在设计专用夹具时要考虑工件的定位方案，工件的夹紧方案和设计夹紧机构，夹具的其他组成部分，夹具的结构形式等。
论述柱塞泵加工工艺及夹具设计，研究零件机械加工工艺规程的设计问题，介绍工艺规程的组成、制定路线等。说明零件的机械加工工艺结构性，结合生产主要从零件分析、毛坯的选择、工艺路线的拟定、工序内容的确定等几个方面详细的讲述了柱塞泵零件工艺过程设计以及工艺编制中应注意的问题，以及如何才能达到最理想的表面质量和经济效益。
针对设计给定的题目，设计铣削零件俯视图左方Φ20圆柱端面。夹具设计包括：对零件进行定位，夹紧方案的设计，对零件进行定位、夹紧元件的选择。在这里尤其要注意的是，夹具在定位零部件的时候，会产生误差，这个误差要在的合理控制范围以内，要充分了解夹具的优缺点，以便改进。
关键词：柱塞泵、加工工艺、铣削、Φ20圆柱端面、夹具
ABSTRACT
The fixture is a clamping device for part machining and is an indispensable device for machining parts. Fixture utilization is high, the economy is good, the use of functional components and the number of small. As the size of the parts changes, more and more fixtures are eliminated, so it is necessary to design a set of special fixtures. In the design of special fixture to consider theworkpiece positioning program, theworkpiece clamping program and design clamping mechanism, the other components of the fixture, fixture structure and so on.
This paper discusses the design process of plunger pump and the design of fixture, studies the design of mechanical processing technology of parts, introduces the composition of process rules, and sets up the route. The details of the mechanical processing technology of the parts are described in detail. The production process is mainly described in detail from the aspects of part analysis, blank selection, process route preparation, process content determination and so on. The question, and how to achieve the best surface quality and economic benefits.
For the design given the subject, design the milling part topview leftΦ20 cylindrical end face. The fixture design includes positioning the parts, designing the clamping scheme, positioning the parts, and selecting the clamping elements. In particular here to note that the fixture in the positioning of parts, itwill produce errors, the errorwithin the reasonable control range, to fully understand the advantages and disadvantages of fixtures in order to improve.
Keywords: Piston pump, processing technology, milling,Φ20 cylindrical end face, fixture
目录
摘要I
ABSTRACT II
1引言1
2零件分析及毛坯的选择2
2.1零件的作用2
2.2零件分析2
2.2.1零件的工艺分析原则2
2.2.2零件的结构分析原则3
2.2.3零件的技术要求分析原则3
2.2.4零件的组成表面3
2.2.5零件的技术要求4
2.3毛坯的选择4
2.3.1选择毛坯的原则4
2.3.2零件毛坯的选择及制造方法5
3定位基准、机加工工艺路线及加工方法的确定6
3.1定位基准的选择6
3.1.1粗基准的选择6
3.1.2精基准的选择6
3.2机加工工艺路线的选择与确定7
3.2.1机加工工艺路线一7
3.2.2机加工工艺路线二8
3.2.3机加工工艺路线的确定9
3.3加工方法的确定10
4加工余量、工序尺寸、切削用量及切削时间的确定12
4.1加工余量、工序尺寸的确定12
4.2切削用量及切削时间的确定13
5专用夹具设计27
5.1确定定位方案、定位元件27
5.1.1确定定位方案27
5.1.2确定定位元件27
5.2确定夹紧方案、夹紧元件28
5.2.1确定夹紧方案28
5.2.2确定夹紧元件28
5.3确定夹具体28
5.4确定导向装置29
5.5铣削力计算29
5.6加工精度误差分析30
结论31
致谢32
参考文献33
夹具装配图A0
V型夹紧块A4
定位夹紧座A2
对刀块A3
工件插销A4
夹紧圆盘A4
夹具体A2
毛坯图A3
支承块A4
左右夹紧座A3
夹具设计部分
设计所包含文件
字数统计
说明书前三页
