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轴承座的钻2-Ф4孔专用夹具设计及加工工艺装备含非标8张CAD图+说明书

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轴承座零件图A3

轴承座的加工工艺及专用夹具设计-钻2-Φ4孔
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轴承座。主要研究的内容包括零件的加工工艺设计及钻2-Φ4孔钻床专用夹具的设计。
轴承座的典型的座架类零件，也是连接和安装轴承的重要基础件。其主要作用是为轴承提供安装和支撑。为轴承、轴以及机构或者机器的正常工作护航。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。
专用夹具设计的内容为：确定零件的定位方案；选取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，选取了对刀装置（钻套）；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所有非标准的零件图。

关键词：轴承座；加工工艺；钻2-Φ4孔；专用夹具；设计

Machining process of bearing housing and special fixture design- drilling 2-Φ4 hole
Abstract
Special fixtures play an important role in the current machining process, enabling the positioning and clamping of theworkpiece. The object of this design study is the bearing housing. The main research contents include the design of the machining process of the parts and the design of the special fixture for drilling the 2-Φ4 hole drilling machine.
The typical frame parts of the housing are also an important part of the connection and mounting of the bearing. Its main role is to provide mounting and support for the bearings. Escort for the normal operation of bearings, shafts and mechanisms or machines. Before designing the machining process, the function of the parts and the analysis of the parts drawingswere first completed, and the production type, manufacturing method and machining allowance of the partswere determined, and the blank drawingwas drawn. Design the processing route, calculate the amount of cutting involved in the process card, and so on. Finally, the process card and process card have been improved.
The content of the special fixture design is: determine the positioning scheme of the part; select the clamping device and the clamping component; design and determine the specific clamp; to ensure the machining accuracy of the part, the tool setting device(drill sleeve) is selected; The clamping force and cutting force of the part during the clamping process are calculated and so on. Finally, complete the fixture assembly drawing for the dedicated fixture and all non-standard parts drawings.

Keywords：bearing seat; machining process; drilling 2-Φ4 hole; special fixture; design

目录
摘要I
Abstract II
1绪论2
1.1机床夹具的研究现状2
1.2现代机床夹具的发展方向2
2零件的作用、工艺分析及生产类型的确定4
2.1零件的作用分析4
2.2零件的工艺分析4
2.3零件生产类型的确定5
3零件的机械加工工艺规程设计6
3.1零件制造形式的确定6
3.2基准的选择6
3.3选择、比较和确定加工工艺路线6
3.4加工设备、夹具、刀具及量具的确定8
3.5机械加工余量的确定8
3.6确定切削用量及基本工时11
4钻2-Ф4孔专用夹具的设计29
4.1确定定位方案，选择定位元件29
4.2确定夹紧方案，选择夹紧元件29
4.3夹具体的设计29
4.4对刀装置—钻套的选择30
4.5钻削力的计算30
4.6夹紧力的计算30
4.7定位误差的分析31
参考文献33
致谢34
附录35