轴齿轮的机械加工工艺及工装设计设计书

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1、UniversityofSouthChina机械工程学院机械专业课程设计说明书设计题目：轴齿轮的机械加工工艺及工装设计课程名称：机械专业课程设计学生姓名：学号：专业班级：指导教师：起止时间：2013年12月02日至2013年12月20日设计任务书题目：轴齿轮的机械加工工艺及工装设计如图所示轴齿轮，齿数Z为19，模数M为2.5，材料为45钢。生产类型为大批量生产，工艺类型采用常规工艺，工序安排采用工序分散原则，设备采用通用设备+专用工装。技术要求：1.轴的内圆与外圆的圆跳度不大于0.03；2.毛坯调质处理；3.齿面硬度

2、为HRC45-48。要求对轴齿轮的机械加工工艺规程及加工齿轮的夹具进行设计。设计内容：1.零件图：1张；2.机械加工工艺过程卡：1张；3.机械加工工序卡：1套；4.夹具装配总图：1张；5.夹具零件图：1张；6.课程设计说明书：1份。20内容摘要：按照题目要求，对工件的工艺要求和技术要求进行分析，通过所学的知识先选择合理的毛坯材料、外形与尺寸。并选择合理的定位基准与加工顺序。通过查找工艺手册选择并计算工件的加工余量，制定最优的工艺路线，以节省成本和工时。再对最终的工艺路线的各工序进行分析与计算其切削用量、进给量和切削速

3、度，并计算所需工时。加工齿轮时，综合考虑选择插齿进行齿轮加工，分析其工艺性确定工件的定位与夹紧方案，再计算其定位误差和夹紧力，设计其专用的夹具。关键词：轴齿轮、加工工艺、工序、夹具；20目录1.零件的工艺分析·····································································41.1零件的结构特点·····································································41.2技术要求

4、·············································································41.3加工工艺性··········································································42.毛坯的确定············································································53.零件的基准选择·······

5、······························································64.重点工序的说明·····································································65.工艺路线的制定·····································································66.加工余量的确定·······························

6、······································77.各工序切削用量的选择及工时的计算········································98.专用夹具的设计···································································19208.1问题的提出··········································································1

7、98.2定位基准的选择······································································208.3定位误差分析········································································208.4夹紧力的计算········································································209.课程设计心得体会··

8、······························································2010.参考文献···········································································2011.附录Ⅰ机械加工工艺过程卡··········