阀套零件图A3
制定阀套工艺及2-M8孔钻模夹具设计
摘要
加工工艺规程是以研究机械加工工艺技术和夹具设计为主技术学科，具有很强的实践性，要求学习过程中应紧密联系生产实践，同时它又具有很强的综合性，
本次设计的内容是制定阀套工艺及2-M8孔钻模夹具设计，具体如下：
1、对零件进行分析，主要是零件作用的分析和工艺分析，通过零件分析可以了解零件的基本情况，而工艺分析可以知道零件的加工表面和加工要求。根据零件图提出的加工要求，确定毛坯的制造形式和尺寸的确定。
2、选择基面，确定加工过程中的粗基准和精基准。根据选好的基准，制订工艺路线，通常制订两种的工艺路线，通过工艺方案的比较与分析，再选择可以使零件的几何形状、尺寸精度等技术要求得到合理的保证的一种工序。根据已经选定的工序路线，确定每一步的切削用量及基本工时，并选择合适的机床和刀具。
3、设计加工2-M8孔钻模专用夹具。对定位方案及元件，夹紧方案及元件进行确定，然后计算切削力、夹紧力和定位误差的分析等。
关键词：阀套、工艺、2-M8孔、钻模、夹具
Abstract
Processing procedure is the main technical subject of studying machining technology and fixture design. It has strong practicality. It requires that production practice should be closely linked in the learning process. At the same time, it has a strong comprehensiveness.
The content of this design is to design thevalve sleeve technology and the 2-M8 hole drilling jig design, as follows:
1. The analysis of the parts is mainly the analysis of the function of the parts and the process analysis. Through the analysis of the parts,we can know the basic situation of the parts, and the process analysis can know the machining surface and processing requirements of the parts. According to the processing requirements set forth in the part drawing, the determination of the form and size of the blank is determined.
2. Choose the base level to determine the rough datum and precise datum in the process. According to the selected benchmark, the process route is formulated, and two process routes are usually formulated. Through the comparison and analysis of the process schemes, a process is selectedwhich can ensure the geometric shape and dimensional accuracy of the parts. According to the selected process routes, determine the cutting parameters and basicworking hours for each step, and select the appropriate machine tools and cutting tools.
3, design and manufacture special fixture for drilling 2-M8 hole. The positioning scheme and components, clamping scheme and components are determined, and then the cutting force, clamping force and positioning error are calculated.
Keywords:valve sleeve, process, 2-M8 hole, drill jig, jig
目录
摘要I
Abstract II
第1章零件分析和毛坯设计1
1.1零件工艺分析及生产类型确定1
1.2毛坯类型及毛坯图设计2
第2章机械加工工艺规程设计4
2.1基准选择4
2.2工艺方案拟定4
2.3机械加工余量的确定5
2.4主要工序切削用量及时间定额的计算8
第3章专用夹具设计22
3.1工序内容及加工要求22
3.2定位基准22
3.3夹具结构设计及工作流程22
3.4设计定位方案应满足的要求22
3.5定位方案的确定23
3.6定位元件的确定24
3.7夹紧方案的确定24
3.8夹紧元件的确定25
3.9夹具体的设计25
3.10导向装置26
3.11计算切削力26
3.12计算夹紧力27
3.13定位误差27
第4章结论29
致谢30
参考文献31
夹具装配图A0
阀套毛坯图A3
夹具非标零件-分度盘A3
夹具非标零件-夹紧盘A4
夹具非标零件-钻模板A4
夹具非标零件-钻模座A3
夹具体A1
A-字数统计
工艺卡
夹具设计部分
工序卡
计算部分预览
说明书前三页
