定位销夹具课程设计(含工艺卡和指定工序的工序卡+全套图纸)

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1、摘要本说明书主要介绍了一种定位销的加工工艺和其典型工序的专用夹具设计过程。在着重分析了零件的作用，工艺要求，生产类型等内容的基础上确定该零件的加工工艺路线。同时在分析该典型工序夹具方案设计和有关计算的基础上，设计出了铣该零件对称斜面时所用的专用夹具。分析设计的过程中采用先确定零件的加工工艺后，再确定指定工序加工时所要使用的专用夹具的定位装置、夹具装置的夹具零部件。该工序在设计过程中按照先粗后精、先主后次、先面后孔的方法合理安排加工顺序。在此基础设计出了包括定位销的毛坯零件合图，夹具装配图及装配图上的

2、个零件图，工艺规程卡片和工序卡。关键词：定位销，加工工艺，夹具设计I目录摘要·····························································································I第1章零件分析··············································································1第2章生产类型及批量的确定·····················

3、··································2第3章毛坯的确定·············································································3第4章工艺方案分析·······································································44.1粗基准的选择·········································

4、······································44.2精基准的选择···············································································44.3工艺过程······················································································5第5章指定工序夹具方案设计和有关计算············

5、·························85.1选择定位基准···········································································85.3机械加工余量、工序尺寸及毛坯尺寸的确定····································85.4切削用量的确定········································································

6、·85.5确定设计方案············································································105.6选择定位元件，设计定位方式····················································115.7铣削力、夹紧力的计算······························································125.8定位误差计算·······

7、···································································13结论··························································································14参考文献·····················································································

8、······15心得···························································································16第1章零件分析本次专业课程设计的零件是定位销，该定位销的零件图如下：题目所给的零件是定位销，定位销的主要作用是用来固定零件之间的相对位置，起定位作用，也可以用于轴与毂的连接，定位销传递的载荷不大，还可以为安全装置中的过载尖端元件。定位销的加工，要求表面光滑些好，硬度