A-3-夹具三维装配图
KST1015叉杆的加工工艺及铣60后下端面夹具设计
摘要
伴随国内经济快速发展的今天，零件的外形和种类也越来越多。随着零件的尺寸变化，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。
本课题的主要研究内容是KST1015叉杆的加工工艺及铣削60后端面夹具设计。叉杆的典型的叉类零件，它位于车床变速机构中，主要起换档，使主轴回转运动按照工作者的要求工作，获得所需的速度和扭矩的作用。在设计初，首先要看懂零件图，并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，从而明确零件的加工工艺过程，最后再计算各工序的切削用量及工时。
通过本次对专用夹具的设计，其加工成本低，加工时间短，加工方案合理，为现实的生产中提供一定的理论依据。
关键词：KST1015、叉杆、工艺、铣削、60后端面
Abstract
With the rapid development of domestic economy, the shape and types of parts are increasing. With the change of the size of the parts, it is necessary to design a special fixture. 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 main research content of this topic is the processing technology of KST1015 fork rod and the design of 60 end face milling fixture. The typical fork part of the fork bar,which is located in the lathe transmission mechanism, mainly shifts gears, so that the spindle rotary motionworks according to the requirements ofworkers, and obtains the required speed and torque. At the beginning of design, it is necessary to understand the part drawing, analyze the structure and process of the part, determine the selection of rough and precision datum, determine the machining allowance and the size of the blank, so as to define the processing process of the part, and finally calculate the cutting parameters and time of each process.
Through the design of this special fixture, its processing cost is low, processing time is short, processing scheme is reasonable, and provides a certain theoretical basis for practical production.
Keywords: KST1015, fork bar, process, milling, 60 end face
目录
摘要I
Abstract II
引言1
1零件的工艺性分析2
1.1零件的组成表面、技术要求及形位公差分析2
1.1.1零件的组成表面分析2
1.1.2零件的技术要求分析2
1.1.3零件的形位公差分析2
1.2零件的作用2
1.3零件的工艺性审查3
1.4确定零件的生产类型4
2拟定零件工艺路线及确定毛坯6
2.1选择定位基准6
2.1.1粗基准的选择6
2.1.2精基准的选择6
2.2工序顺序的安排原则6
2.3制定工艺路线7
2.3.1工艺路线方案1 7
2.3.2工艺路线方案2 7
2.3.3工艺路线的分析、确定8
2.4零件毛坯的确定8
2.5机床、夹具、刀具及量具的确定9
2.6零件加工余量的确定10
2.7切削用量及时间定额的计算11
3铣削60后端面专用夹具设计26
3.1选择定位方案和定位元件26
3.1.1选择定位方案26
3.1.2选择定位元件26
3.2选择夹紧方案和夹紧元件28
3.2.1选择夹紧方案28
3.2.2选择夹紧元件28
3.3确定夹具体28
3.4确定对刀块29
3.5计算切削力和夹紧力29
3.5.1计算切削力29
3.5.2计算夹紧力30
3.6分析定位误差30
结论32
致谢33
参考文献34
A-8-零件图三维图
A-4-夹具装配图A0
A-5-夹具体A1
A-6-KST1015叉杆毛坯图A3
A-7-KST1015叉杆零件图A3
A-1-字数统计
A-2-所包含文件预览
工序卡
过程卡
夹具设计部分
计算部分预览
说明书前三页
