A-3-连接杆(MJ-LJG)毛坯图A3
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。
针对连接杆(MJ-LJG)零件做出了工艺设计、工序设计以及专用夹具三部分。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：连接杆；工艺；工序；专用夹具；工艺路线；切削用量
Abstract
This design involves mechanical manufacturing technology and machine tool fixture design, metal cutting machine tools, tolerance fit and measurement and other aspects of knowledge.
Three parts, including process design, process design and special fixture, are made for connecting rod(MJ-LJG) parts. In the process design,we must first analyze the parts, understand the process of the parts, then design the structure of the blank, and select the processing benchmark of the parts, then design the process route of the parts. The design of special fixture is carried out, and each component of fixture is selected, such as positioning component, clamping component, guiding component, connecting component between fixture and machine tool, and other components; the positioning error caused by fixture positioning is calculated, the rationality and shortcomings of fixture structure are analyzed, and the notes in future design are given. It is intended to be improved.
Keywords: connecting rod; technology; process; special fixture; process route; cutting parameter
目录
摘要1
Abstract 2
第1章零件分析和毛坯设计4
1.1零件工艺分析及生产类型确定4
1.2毛坯类型及毛坯图设计4
第2章机械加工工艺规程设计6
2.1基准选择6
2.2工艺方案拟定6
2.3机械加工余量、工序尺寸及公差的确定7
第3章专用夹具设计21
3.1工序内容及加工要求21
3.2定位基准21
3.3夹具结构设计及工作流程21
3.4设计定位方案应满足的要求21
3.5定位方案的确定21
3.6定位元件的确定21
3.7夹紧方案的确定21
3.8夹紧元件的确定21
3.9夹具体的设计22
3.10导向装置23
3.11计算切削力23
3.12计算夹紧力23
3.13定位误差24
第4章结论25
参考文献26
A-5-夹具装配图A0
A-4-连接杆(MJ-LJG)零件图A3
A-6-夹具体A1
A-夹具非标零件-V型夹紧块A4
A-夹具非标零件-定位座A3
A-夹具非标零件-夹紧套A4
A-夹具非标零件-压板A4
A-夹具非标零件-右V型定位块A3
A-夹具非标零件-左V型定位块A3
A-连接杆(MJ-LJG)工序卡
A-1-字数统计
A-2-设计所包含文件
夹具设计部分
说明书前三页
计算部分预览
