4三维零件图
摘要
本次毕设的内容是扇形块加工工艺设计，夹具设计及三维建模。其设计涉及到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。该零件是机构上面一个重要的附件，因为其外形类似扇面，故取名扇形块。其作用是为机器的正常运转提供保障，实现相应的运动。该零件的材料是45钢，该材料综合性能比较好。设计内容含零件加工的工艺设计以及专用夹具的设计。
工艺设计的内容有完成零件结构的分析，设计了2种加工零件的方法，选择了比较合适的一条，填写工艺卡。选择了零件的加工基准，选取了加工余量，计算出了相应的切削数据，填写了工序卡，完成了零件图还有毛坯图。
专用夹具的主要内容有：根据工序图上面的定位和夹紧简图，设计钻3-Ф8孔钻床专用夹具，采用的机床是Z4006A台式钻床。设计了定位和夹紧方案，选择了定位和夹紧元件。选择标准件钻套等等。最后，完成三维实体建模，夹具装配图还有所有非标零件图的绘制，编写了设计说明书等。
关键词：扇形块；加工工艺；夹具设计；三维建模；钻3-Ф8孔
Abstract
The content of this design is the machining process design of the segment, fixture design and 3D modeling. Its design involves awide range of knowledge in mechanical manufacturing processes and machine tool fixture design, metal cutting machine tools, tolerances and measurements. This part is an important accessory on the mechanism. Because it has a shape similar to a fan, it is named a fan. Its role is to provide guarantee for the normal operation of the machine and achieve the corresponding movement. The material of the part is 45 steel, and the material has better comprehensive performance. The design content includes the process design of the part processing and the design of the special fixture.
The content of the process design has the analysis of the completed part structure, and the two methods of processing the parts are designed. A more suitable one is selected and the process card is filled out. The machining reference of the partwas selected, the machining allowancewas selected, the corresponding cutting datawas calculated, the operation cardwas filled out, and the part drawing and the blank drawingwere completed.
The main contents of the special fixture are: according to the positioning and clamping diagram above the process diagram, the special fixture for drilling 3-Ф8 hole drilling machine is designed. The machine tool used is Z4006A bench drilling machine. The positioning and clamping schemewas designed and the positioning and clamping elementswere selected. Choose standard drill sleeves and more. Finally, complete 3D solid modeling, fixture assembly drawings and drawing of all non-standard parts drawings, and design specifications.
Keywords: sector block; machining process; fixture design; three-dimensional modeling; drilling 3-Ф8 hole
目录
摘要I
Abstract II
一、绪论1
（一）机床夹具的组成1
（二）机床夹具的研究现状1
（三）现代机床夹具的发展方向2
二、零件的分析4
（一）分析零件的作用4
（二）分析零件的材料5
（三）分析零件的组成表面5
（四）分析零件加工面的加工要求5
（五）分析零件的形位公差5
三、设计零件加工工艺规程6
（一）确定零件制造形式6
（二）确定零件生产类型6
（三）零件加工基准的选择7
（四）设计、分析以及确定加工工艺路线8
（五）确定机床、夹具、刀具及量具9
（六）确定机加工余量9
（七）确定切削用量及工时11
四、钻3-Ф8孔专用夹具的设计20
（一）专用夹具设计前的分析20
（二）设计定位方案及确定定位元件20
（三）设计夹紧方案及确定夹紧元件21
（四）设计夹具体22
（五）选择对刀装置—钻套23
（六）钻削力和夹紧力的计算23
（七）分析夹具定位精度24
五、结论25
致谢辞26
参考文献27
3三维装配图
5三维爆炸夹具装配图
扇形块零件图A4
夹具装配图A0
分度盘A3
夹紧盘A4
夹具体A1
扇形块毛坯图A4
钻模板A4
6目录
7夹具设计部分
8过程卡
9工序卡
设计所包含文件
1字数
2摘要
