阀盖工艺及夹具设计说明书 .pdfVIP

摘要

本设计专用夹具的设计本设计专用夹具的设计阀盖零件加工过程的基础上。主要

加工部位可以说是平面和孔加工。在一般普通情况下，确保比保证精密加工孔更加容

易。原以此，设计遵循的原则是先加工面后加工孔表面。主要的流程安排是支持在

定位孔过程中的第一个，然后进行平面和孔定位技术支持上加工孔。整个过程是一个

组合的选取工具。专用夹具夹具的选取，有自锁机构，原以此，更高的生产力，对于

大批量，达到设计给定的要求。

关键词：阀盖类零件；工艺；夹具；

I

ABSTRACT

outputshaftasaroughbenchmark.Mainprocessesarrangementstosupportholesfor

positioningandprocessingthetopplane.Thebottomsurfaceandthetwoholesasa

suitableforprocessinglargequantity,ontheassemblyline.

Keywords:Anglegearseatparts;fixture;

II

目录

摘要·······················I

ABSTRACT·····················II

第一章加工工艺规程设计··············1

１.1零件的分析··················································1·

１.1.1零件的作用··············································1·

1.2阀盖加工的问题和相应措施······························1·

1.2.1孔和平面的加工顺序···································2·

1.2.2孔系加工方案选择······································2·

1.3阀盖加工定位基准的选择·································2·

1.3.1粗基准的选择············································2·

1.3.2精基准的选择············································2·

1.4阀盖加工主要工序安排····································2·

1.5机械加工余量数值、工序尺寸及毛坯尺寸的确定···4·

1.6确定切削用量及基本工时（机动时间）················5·

1.7时间定额计算及生产安排·································11

第二章钻孔夹具设计················16

2.2切削力和夹紧力的计算·····································16

2.3定位误差分析·················································18

2.4定向键与对刀装置设计····································18

III

2.5夹具体的设计················································21

2.6夹具设计及操作简要说明·································