设计简介
目 录
序言······························································2
CA6140车床的型号831002拨叉工艺规程设计
一.拨叉的工艺分析及生产类型的确定·································2
1.拨叉的用途···················································3
2.拨叉的技术要求···············································3
3.审查拨叉的工艺性·············································4
4.确定拨叉的生产类型···········································4
二. 确定毛坯,绘制毛坯简图·········································4
1.选择毛坯······················································4
2.确定毛坯的尺寸公差和机械加工余量······························5
三.拟定拨叉工艺路线···············································5
1. 基面的选择···················································5
2.表面加工方法的确定表面加工方法的确定··························6
3.加工阶段的划分················································6
4.工序的集中与分散···············································6
5.确定拨叉的生产类型············································6
6.工艺路线的确定················································7
四．机械加工余量、工序尺寸及公差的确定·······························8
五. 拨叉φ60孔切削用量、时间定额的计算·······························9
1.切削用量计算····················································10
2.时间定额的计算·················································10
六．机床夹具设计·····················································12
1.设计应考虑的问题················································12
2.定位方案设计····················································13
3. 工件误差分析计算···············································13
4. 导向元件设计···················································14
5.夹紧装置设计····················································14
6夹紧力与切削力的计算·············································16
7.夹具体的设计·····················································16
参考文献·······························································18
序言······························································2
CA6140车床的型号831002拨叉工艺规程设计
一.拨叉的工艺分析及生产类型的确定·································2
1.拨叉的用途···················································3
2.拨叉的技术要求···············································3
3.审查拨叉的工艺性·············································4
4.确定拨叉的生产类型···········································4
二. 确定毛坯,绘制毛坯简图·········································4
1.选择毛坯······················································4
2.确定毛坯的尺寸公差和机械加工余量······························5
三.拟定拨叉工艺路线···············································5
1. 基面的选择···················································5
2.表面加工方法的确定表面加工方法的确定··························6
3.加工阶段的划分················································6
4.工序的集中与分散···············································6
5.确定拨叉的生产类型············································6
6.工艺路线的确定················································7
四．机械加工余量、工序尺寸及公差的确定·······························8
五. 拨叉φ60孔切削用量、时间定额的计算·······························9
1.切削用量计算····················································10
2.时间定额的计算·················································10
六．机床夹具设计·····················································12
1.设计应考虑的问题················································12
2.定位方案设计····················································13
3. 工件误差分析计算···············································13
4. 导向元件设计···················································14
5.夹紧装置设计····················································14
6夹紧力与切削力的计算·············································16
7.夹具体的设计·····················································16
参考文献·······························································18
