零件图
十字头滑套的钻14XΦ22孔夹具设计及机械加工工艺规程装备
摘要
夹具是零件加工的夹紧装置，是加工零件的一种必不可少的装置。夹具利用率高，经济性好，对功能组件的使用和数量少。随着零件的尺寸变化，越来越多的夹具被淘汰了，因此，设计一套专用夹具是十分有必要的。在设计专用夹具时要考虑工件的定位方案，工件的夹紧方案和设计夹紧机构，夹具的其他组成部分，夹具的结构形式等。
夹具主要依据零件的加工要求来设计的。夹具应满足零件加工工序的精度要求、加工生产率要求，并保证操作方便、安全及使用寿命和较低的夹具制造成本。本课题设计的题目是十字头滑套的机械工艺规程及加工14X22孔夹具设计。十字头滑套，十字头滑套位于轴的端部，连接轴与下一级的传动部件，起到传递扭矩与动力的作用。
设计之初我查阅相关数据及国内外关于机床夹具的文献，在看懂零件图的同时对零件的结构和工艺进行分析，明确粗基准和精基准的选择，确定零件的加工余量与毛坯的尺寸、从而确定零件的加工工艺过程、计算各工序的切削用量及工时等。
关键词：夹具、十字头滑套、工艺规程、14XΦ22
Abstract
Jig is the clamping device for parts processing,which is an essential device for processing parts. The fixture has the advantages of high utilization rate, good economy, and less use and quantity of functional components. With the change of the size of parts, more and more fixtures are eliminated. Therefore, it is necessary to design a set of special fixtures. When designing the special fixture,we should consider the positioning scheme of theworkpiece, the clamping scheme of theworkpiece and the design of the clamping mechanism, other parts of the fixture, the structure of the fixture and so on.
The fixture is mainly designed according to the processing requirements of parts. Fixture should meet the precision requirements of parts processing procedures, processing productivity requirements, and ensure easy operation, safety and service life and lower jig manufacturing costs. The topic of this project is the mechanical process regulations of crosshead slider and the design of 14XΦ22 hole fixture. The cross head sliding sleeve is located at the end of the shaft, connecting the shaftwith the transmission parts of the next stage, playing the role of transmitting torque and power.
At the beginning of the design, I consulted the relevant data and the domestic and foreign literature about the machine tool fixture, analyzed the structure and process of the partwhile reading the part drawing, made clear the choice of the rough datum and the precision datum, determined the machining allowance of the part and the size of the blank, thus determined the processing process of the part and calculated the cutting process of eachworking procedure. Dosage andworking hours.
Keywords jig, crosshead slip sleeve, process specification, 14X22
目录
摘要I
Abstract II
第1章绪论3
1.1机床夹具的概述3
1.2机床夹具的分类3
1.3机床夹具的发展方向4
1.4机床夹具在机械加工中的作用5
1.5夹具设计的特点和基本要求5
1.5.1夹具设计的特点5
1.5.2设计的基本要求6
第2章零件机械加工工艺规程设计7
2.1零件的作用、设计基准及技术要求7
2.1.1零件的作用7
2.1.2零件的设计基准7
2.1.3零件的组成表面7
2.2零件的技术要求8
2.3零件的机械加工工艺性、材质及热处理要求8
2.3.1零件的机械加工工艺性8
2.3.2零件的材质8
2.3.3零件的热处理要求8
2.4基准的选择及加工方案的选择与确定8
2.4.1基准的选择8
2.4.2加工方案确定9
2.5毛坯尺寸及工艺尺寸的确定10
2.5.1毛坯尺寸的确定10
2.5.2工艺尺寸的确定11
2.6确定切削用量及基本工时12
第3章专用夹具设计24
3.1定位方案及定位元件的确定与选择24
3.2夹紧方案及装置的确定与选择25
3.3夹具体的确定25
3.4导向装置的确定26
3.5钻削力的计算26
第4章结论27
致谢28
参考文献29
钻孔夹具装配图A0
夹具体零件图A1
毛坯图
套A2
销A2
夹具设计部分
设计所包含文件
字数统计
说明书前三页
过程卡
