输出轴的机械加工工艺及钻孔夹具 大学毕业设计.doc

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1、毕业设计(论文)题目：输出轴机械加工工艺规程制定及钻孔专用夹具设计院（系）：机械工程学院专业：机械设计制造及其自动化学生姓名：学号：指导教师：职称：教授2013年11月20日-32-目录摘要··························································2第一部分零件分析·············································3一.零件的功用分析···········································3二.零件的工艺分析·························

2、··················3第二部分机械加工工艺规程制定·······························4一.毛坯的确定···············································4二.定位基准的选择···········································4三.加工方法的选择···········································4第三部分工艺路线的拟定·····················-32-··················6一.机械加工工序······

3、·······································6二.热处理工序···············································6三.辅助工序·················································7四.输出轴零件的工艺路线·····································7五.确定加工余量及毛坯尺寸··································8六.工序设计········································

4、········13七.确定切削用量············································15第四部分钻床夹具的设计·····································25一.定位夹紧方案的确定·······-32-·······························25二.切削力和夹紧力计算······································25三.定位误差分析············································25四.夹具的结构特点及应用情况·······

5、·························28参考文献·······················································29致谢·······················································30摘要输出轴零件的主要作用是支撑零件、实现回转运动并传递转矩和动力。本文以一典型输出轴零件为例讨论了零件的机械加工工艺规程和专用夹具设计。对于工艺规程设计，在分析了输出轴零件的作用和加工工艺性后，先提出两种工艺方案，再甄选出最佳方案。输出轴零件的机械综合性能要求较高，一般选择锻件作为毛坯。对于夹具

6、设计，本文选取其中钻斜孔工序来设计专用夹具。经过对工序要求进行分析后，采用一面两孔定位，转动压板加紧。导向装置采用可换的特殊钻套。关键词：输出轴；工艺规程；夹具设计。-32-AbstractOutputshaftpartsissupportingparts,realizethemainfunctionofrotarymotionandtorqueandpower.Inthispaper,atypicaloutputshaftpartsasanexampletodiscussthepartsmachiningprocessplanningandspecialfixturedesign.

7、Forprocessplanningdesign,theanalysisoftheoutputshaftpartsaftereffectandprocessingtechnology,putsforwardtwokindsofprocessplan,andthenselectthebestscheme.Comprehensivemechanicalperformancerequirementsofhighoutputshaftparts,generally