三维零件图
CA6140杠杆的加工工艺设计
摘要
本设计是CA6140杠杆零件的加工工艺规程计。CA6140杠杆零件的主要加工表面是平面及孔。一般来说，保证平面的加工精度要比保证孔的加工精度容易。因此，本设计遵循先面后孔的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔的加工精度。基准的选择以杠杆外圆面作为粗基准，以孔及其下表面作为精基准。先将底面加工出来，然后作为定位基准，在以底面作为精基准加工孔。
关键词CA6140杠杆，加工工艺
ABSTRACT
This design is the processing specification of CA6140 lever parts. The main machining surfaces of CA6140 lever parts are plane and hole. Generally speaking, it is easier to ensure the machining accuracy of the plane than to ensure the machining accuracy of the hole. Therefore, the design follows the principle of first face and rear hole. The machining of holes and planes is clearly divided into rough machining and finishing stages to ensure the machining accuracy of holes. The choice of datum is based on the outer surface of the lever as the rough datum, and the hole and its lower surface as the precise datum. First, the bottom surface is machined, and then as the positioning datum, the bottom surface is used as the fine datum machining hole.
Keywords CA6140 lever, processing technology
目录
摘要1
ABSTRACT 2
1杠杆加工工艺规程设计4
1零件的分析4
1.1零件的作用4
1.2零件的工艺分析4
2杠杆加工的主要问题和工艺过程设计所应采取的相应措施5
2.1确定毛坯的制造形式5
2.2基面的选择5
2.3确定工艺路线5
2.4机械加工余量、工序尺寸及毛坯尺寸的确定7
2.2.5确定切削用量7
2.2.6确定基本工时19
3小结24
4、钻M6螺纹底孔夹具设计25
4.1、夹具设计要求25
4.2、定位方案25
4.3夹紧机构26
4.4钻套、衬套、钻模板26
4.5夹具体设计26
参考文献28
致谢29
A夹具装配图
夹具体
零件图
夹具设计部分
设计所包含文件
字数统计
工艺卡1
工艺卡2
工艺卡3
工艺卡4
工艺卡5
工艺卡6
工艺卡7
机械加工工艺过程卡片
