文档介绍：设计说明书
设计题目:制定拨叉零件的加工工艺
设计及钻Φ22 孔的钻床夹具
摘要
本次设计内容涉及了机械制造工艺及机床夹具设计、金属切
削机床、公差配合与测量等多方面的知识。
拨叉加工工艺规程及其钻Φ22 孔的夹具设计是包括零件加
工的工艺设计、工序设计以及专用夹具的设计三部分。在工艺设
计中要首先对零件进行分析,了解零件的工艺再设计出毛坯的结
构,并选择好零件的加工基准,设计出零件的工艺路线;接着对
零件各个工步的工序进行尺寸计算,关键是决定出各个工序的工
艺装备及切削用量;然后进行专用夹具的设计,选择设计出夹具
的各个组成部件,如定位元件、夹紧元件、引导元件、夹具体与
机床的连接部件以及其它部件;计算出夹具定位时产生的定位误
差,分析夹具结构的合理性与不足之处,并在以后设计中注意改
进。
关键词:工艺、工序、切削用量、夹紧、定位、误差。
ABSTRCT
This design content has involved the machine manufacture craft and
the engine bed jig design, the metal-cutting machine tool, mon
difference coordination and the survey and so on the various knowledge.
The shifting fork technological process and its the processing ￠ 22
hole jig design is includes ponents processing the technological
design, the working procedure design as well as the unit clamp design three
parts. Must first carry on the analysis in the technological design to the
components, understood ponents the craft redesigns the semi
finished materials the structure, and chooses the ponents the
processing datum, designs ponents the craft route; After that is
carrying on the putation to ponents each labor step of
working procedure, the key is decides each working procedure the craft
equipment and the cutting specifications; Then carries on the unit clamp the
design, the choice designs the jig position part, like locates the
part, clamps the part, guides the part, to clamp concrete and the engine bed
connection part as well as other parts; Position error which calculates the jig
locates when produces, analyzes the jig structure the rationality and the
deficiency,and will design in later pays attention to the improvement.
Keywords: The craft, the working procedure, the cutting
specifications, clamp, the localization, the error
目录
序言…………………………………………………………………1
一. 零件分析……………………………………………………2
零件作用………………………………………………2
零件的工艺分析…………………………………………2
二. 工艺规程设计…………………………………………………2
确定毛坯的制造形式……………………………………2
基面的选择传……………………………………………2