三维零件图
摘要
专用夹具在现在的机械加工过程中发挥着重要的作用，实现了加工件的定位和夹紧。本次设计研究的对象是弯管机底板支座。主要研究的内容包括弯管机底板支座的加工工艺设计及专用夹具的设计。其中专用夹具设计了：铣83.5上端面及15上端面铣床专用夹具。
弯管机主要的作用是对管材进行相应的弯曲，底板支座为弯管机上主要零部件的定位和工作提供支撑。在对加工工艺设计之前，首先完成了零件作用及零件图的分析，确定了零件的生产类型，制造方式及加工余量，绘制毛坯图。设计加工工艺路线，计算工序卡中涉及到的切削用量等。最后，完善了工艺卡及工序卡。
本次加工的零件设计了专用夹具，设计的内容为：确定零件的定位方案（满足6点定位原理）；选择夹紧装置还有夹紧元件；对夹具体进行了设计和确定；为保证零件的加工精度，设计了对刀装置（对刀块）；对零件在装夹过程中的夹紧力和切削力进行计算等等。最后，完成专用夹具的夹具装配图还有非标准零件图。
关键词：弯管机底板支座；加工工艺；铣83.5上端面及15上端面
Abstract
The special fixture plays an important role in the present machining process,which realizes the positioning and clamping of theworkpiece. The research object of this design is the base plate support of pipe bender. The main research content includes the processing technology design of the pipe bender base plate support and the design of the special fixture. The special fixture is designed: milling 83.5 upper end face and 15 upper end face milling machine special fixture.
The main function of the pipe bender is to bend the pipe accordingly, and the base plate support provides support for the positioning andwork of the main parts on the pipe bender. Before the design of processing technology, the function of parts and the analysis of part drawing are completed. The production type, manufacturing mode and machining allowance of parts are determined, and the blank drawing is drawn. Design the processing route, calculate the cutting parameters involved in the process card. Finally, the process card and process card are improved.
The special fixture is designed for the parts processed this time. The contents of the design are: determine the positioning scheme of the parts(meet the 6-point positioning principle); select the clamping device and clamping elements; design and determine the clamp specific; in order to ensure the machining accuracy of the parts, design the tool setting device(tool block); calculate the clamping force and cutting force in the clamping process of the parts. Finally, complete the fixture assembly drawing of special fixture and non-standard part drawing.
Keywords: pipe bender base plate support; processing technology; milling 83.5 upper end face and 15 upper end face
目录
摘要I
Abstract II
第1章绪论1
1.1本课题研究的目的及意义1
1.2机床夹具的研究现状1
1.3现代机床夹具的发展方向2
第2章零件的机械加工工艺规程设计3
2.1零件的工艺分析及生产类型的确定3
2.1.1零件的作用3
2.1.2零件材料的分析4
2.1.3零件表面结构的分析4
2.1.4零件加工要求的分析4
2.1.5零件形位公差的分析4
2.1.6零件生产类型的确定5
2.2零件工艺规程设计5
2.2.1零件制造形式的确定5
2.2.2基准的选择6
2.3选择、比较和确定加工工艺路线6
2.3.1选择加工工艺路线7
2.3.2比较加工工艺路线8
2.3.3确定加工工艺路线8
2.4加工设备、夹具、刀具及量具的确定8
2.5机械加工余量的确定9
2.6确定切削用量及基本工时11
第3章铣床专用夹具的设计24
3.1确定定位方案，选择定位元件24
3.2确定夹紧方案，选择夹紧元件24
3.3夹具体的设计25
3.4对刀装置的选择26
3.5铣削力及夹紧力计算26
3.6定位误差分析27
第4章加工程序编制及仿真加工28
4.1数控编程的分类28
4.2数控编程28
4.2.1创建几何体29
4.2.2创建刀具31
4.2.3面铣削加工操作31
4.2.4型腔铣加工设置34
4.3仿真加工及后处理36
结论42
致谢43
参考文献44
铣面夹具装配图A0
弯管机底板支座零件图A2
弯管机底板支座毛坯图A2
铣面对刀座A3
铣面夹具体A1
加工综合卡片
夹具设计部分
目录
设计所包含文件
摘要
字数
加工过程卡
