毕 业 设 计
论文题目：
学 生：
指导教师：
专 业：
班 级：
阀体零件加工工艺规程及夹具设计
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。
节流阀体零件的加工工艺规程及其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：阀体；工艺；工序；夹紧；定位；误差
I
The designofbodypartsprocessingtechnicalprocessand
fixture
Abstract
The design content of the mechanical manufacturing technology and machine tool
fixture design,metal cuttingmachine tool,tolerancematching andmeasurement of aspectsof
knowledge.
Throttle body parts processing procedures and fixture design is including parts
processing process design, process design and special fixture design three parts.Should first
analyzethepartsin theprocess design,understandpartsoftechnology to design the structure
of blank, and choose the good partsprocessing benchmark, design process of the parts;Then
theparts size of each work step oftheprocess,the key isto determine theprocess equipment
for each process and cutting parameter;For the design of special fixture, then select design
out ofthe component partsofthe fixture, such asthepositioning device,clamping device,led
components, specific connection with machine parts and other parts;Calculated at the exit of
fixture locating position error, analysis the rationality of the fixture structure and deficiency,
andpay attentiontothe improvement in the later designing.
Keywords: The valve body;The craft;the working procedure;clamp the
localization;the error
II
目录
摘 要I
AbstractII
1 绪 论
