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　　0XX大学课程设计论文滚动轴承座SN206零件工艺规程及加工圆形螺栓孔气动夹具设计所在学院专业班级姓名学号指导老师年月日摘要本文是对滚动轴承座SN206零件加工应用及加工的工艺性分析，主要包括对零件图的分析、毛坯的选择、零件的装夹、工艺路线的制订、刀具的选择、切削用量的确定、加工工艺文件的填写。选择正确的加工方法，设计合理的加工工艺过程。此外还对填料箱盖零件的两道工序的加工设计了专用夹具.机床夹具的种类很多，其中，使用范围最广的通用夹具，规格尺寸多已标准化，并且有专业的工厂进行生产。而广泛用于批量生产，专为某工件加工工序服务的专用夹具，则需要各制造厂根据工件加工工艺自行设计制造。本论文夹具设计的主要内容是设计加工轴承孔夹具。关键词：滚动轴承座SN206，加工工艺，加工方法，工艺文件，夹具目录摘要·····································································································································1第1章绪论···························································································································71.1课题研究的意义及现状·································································································································71.2课题主要研究内容··········································································································································71.3研究方法和手段··············································································································································81.4研究目标····························································································································································81.5方案可行性分析··············································································································································8第2章零件的分析···············································································································92.1零件的作用······················································································································································92.2零件的工艺分析···········································································································································10第3章滚动轴承座SN206零件的加工工艺规程设计·····················································113.1毛坯的选择及铸造方法·······························································································································113.2基准的选择·····················································································································································113.2.1粗基准的选择········································································································································113.2.2精基准的选择········································································································································123.4轴承座加工主要工序安排·························································································································123.5机械加工余量、工序尺寸及毛坯尺寸的确定······················································································ 13 3.6 确定切削用量及基本工时（机动时间）································································································ 14 3.7 时间定额计算及生产安排 ························································································································· 20 第4 章 加工圆形螺栓孔气动夹具设计·············································································25 4.1 夹具的设计要求 ··········································································································································· 25 4.2 定位基准的选择 ··········································································································································· 26 4.3 确定夹具结构，确定夹紧机构（气压夹紧）方案 ·············································································· 26 4.4 设计夹具装配图 ············································································································································ 28 4.5 切削力及夹紧力的计算 ······························································································································· 29 4.6 误差分析与计算 ··········································································································································· 30 4.7 钻套、衬套、钻模板设计与选用 ············································································································ 30 4.8 确定夹具体结构和总体结构···················································································································· 32 4.9 夹具设计及操作的简要说明 ····················································································································· 33 总 结·····································································································································34 参考文献·······························································································································35 致 谢·····································································································································36 全套设计加 197216396 或401339828