I-R档拔叉铣叉脚（两侧）夹具设计（含全套CAD图纸）.pdf

机械制造课程设计说明书
题目:设计 I-R 挡拨叉的机械加工工艺规程
及铣叉脚两侧工序的专用夹具
专业:
学生姓名:
学号:
班级:
指导老师:
专业系主任:
机械工程学院
2015 年月日
摘要
本设计 I-R 档拔叉零件加工过程的基础设计的夹具设计。主要加
工部位是平面和孔加工。在一般情况下,确保比保证精密加工孔很容
易。因此,设计遵循的原则是先加工面后加工孔表面。在零件的夹具
设计中,主要是根据零件加工工序要求,分析应限的自由度数,进而
根据零件的表面特征选定定位元件,再分析所选定位元件能否限定应
限自由度。确定了定位元件后还需要选择夹紧元件,最后就是确定专
用夹具的结构形式。全套设计 401339828
关键词:I-R 档拔叉零件;工艺;夹具;
II
Abstract
The design of turntable parts machining process based design of
fixture design. The main processing parts processing plane and holes. In
general, ensure easy to guarantee precision machining holes than. Therefore,
the design principle is first machined surface after machining hole surface.
In the fixture design of parts, mainly according to the requirement of
machining process, the number of degrees of freedom analysis should limit,
then according to the surface characteristics ponents selected
location element, then analyze the selected ponents can be
qualified shall be limited degrees of freedom. Determine the location
element also need to select the clamping element, the last is to determine
the structure of the special fixture.
Keywords: cutter turntable parts; technology; fixture;
III
目录
摘要................................................................................................................................ II
Abstract............................................................................................................................III
第 1 章零件的分析........................................................................................................1
零件的作用.........................................................................................................1
零件的工艺分析................................................................................................2
零件的生产类型................................................................................................2
第 2 章确定毛坯的种类和制造方法.........................................................