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机电一体化专业
毕 业 设 计（论 文）
机械制造工艺部分 题 目： 进给箱齿轮轴
系 别： 动力工程系
专 业： 机电一体化
班 级： 机电092班
学生姓名： 李春光
指导教师： 熊娟 韩丽娜
完成日期： 2012-05-06 四川电力职业技术学院 进给箱齿轮轴机械加工工艺规程毕业设计
摘 要
进给箱用来改变进给量轴经挂轮箱传入进给箱的运动，通过移动变速手柄来改变进给箱中滑动齿轮的啮合位置，便可使光杆或丝杆获得不同的转速。
尺寸基准
目 录
1 绪论·······························································3
1．1选题背景······················································3
1．2零件作用······················································3
2毛坯的选择·························································3
2．1 外圆表面尺寸的确定···········································4
2．2 外圆表面沿轴线长度方向加工余量及工差的确定···················4
2．3零件图························································4
2．4立体图························································5
3 基准的选择························································5
4 加工阶段的划分···················································6
4.1 粗加工阶段····················································6
4.2 半精加工阶段··················································6
4.3 齿轮加工阶段磨削加工阶段······································6
5 工艺路径的拟定···················································6
6 机床的选择·······················································7
7 夹具的选择·······················································7
8 刀具的选择·······················································8
9 量具的选择·······················································8
10 确定工序尺寸·····················································9
11 切削用量的选择··················································10
附 录······························································12
总 结·····························································21
致 谢·····························································22
参考文献···························································23 1绪论
1、1选题背景
轴类零件的功用为支撑转动零件、传动扭矩、承受载荷以及保证装在齿轮轴上的工件具有一定的回转精度。零件Φ24用来装套筒然后装滚动轴承起支撑作用，键槽8用来安装齿轮起定位作用。Φ30用来安装滚动轴承表面光洁度要求高并且同轴度要求不大于0.01mm轴的一端为齿轮轴用来变向，变速传递运动。齿轮精度为8级一般精度，其基准孔要求Ra3.2即可。本零件表面加工并不困难。Φ60齿轮表面要求精度高，需精磨，并保证同轴度不大于0.125mm。
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