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目 录
1 前言………………………………………………………………………………1
2 总体方案论证……………………………………………………………………3
2.1工艺方案设计……………………………………………………………………3
2.2加工设备方案选择………………………………………………………………3
2.3确定机床的总体布局……………………………………………………………4
3 切削用量的选择和计算…………………………………………………………5
3.1切削刀具选择……………………………………………………………………5
3.2切削用量的选择…………………………………………………………………5
3.3确定切削力,切削转矩,切削功率……………………………………………6
4 组合机床通用设备的选择………………………………………………………7
4.1进给动力部件选择………………………………………………………………7
4.2主运动动力部件选择……………………………………………………………8
4.3通用主轴部件选择…………………………………………………………… 8
5 组合机床总体………………………………………………………………… 10
5.1被加工零件工序图…………………………………………………………… 10
5.2加工示意图…………………………………………………………………… 11
5.3机床总联系尺寸图…………………………………………………………… 12
5.4机床生产率计算卡…………………………………………………………… 13
6 夹具设计……………………………………………………………………… 15
6.1定位误差分析计算…………………………………………………………… 15
6.2夹紧装置设计………………………………………………………………… 16
6.3夹紧力的计算………………………………………………………………… 16
6.4夹具零部件的设计…………………………………………………………… 18
7 结论…………………………………………………………………………… 23
参考文献…………………………………………………………………………… 24
致谢………………………………………………………………………………… 25
两侧面组合铣床及夹具设计
摘要: 本课题设计一台粗铣柴油机气缸体两侧面的组合铣床,主要完成组合铣床的总体设计及其夹具的设计。
根据柴油机气缸体的结构特点、加工部位、尺寸精度、表面粗糙度及生产率等要求,确定该机床为单工位卧式组合机床;考虑工件尺寸精度,表面粗糙度,切屑的排除及生产率等因素,选用硬质合金不重磨式面铣刀;根据工件的尺寸、特点及其材料选择切削用量;然后,再经过切削用量来确定组合机床的通用部件;最后进行组合机床的总体设计。由于是粗铣柴油机气缸体两侧面,则夹具的设计采用“一面两销”定位, 手动夹紧,一次装夹加工柴油机气缸体的两个侧面,保证了加工精度,提高了生产效率;根据工作将受到切削力来计算夹紧力;再根据夹紧力来选择确定夹紧装置的专用部件。
在设计之中,尽量选用通用件,减少了制造成本,增加了经济效益。通过本次设计可以达到效果是:所设计的组合铣床和夹具能满足其工作状态的质量要求,使用时安全可靠,易于维修。
关键词:组合铣床;气缸体;铣刀;夹具
Two sides modular milling machine and jig design
Abstract: This topic designs a thick mill diesel engine to be mad the cylinder body two sides the combination milling machines, Mainly completes the design work of machine tool overall and the jig design.
According to the request of construction features, processing spot, size precision, surface roughness and productivity that diesel engine air cylinder, sets the machine tool for single location horizontal type modular machine tool. Considered to the factor of the size precision, surface roughness, scrap removes and productivity and so on of the work piece, selects the Hard alloy not grind type surface milling cutter. According to work piece size, characteristic and its material choice cutting specifications; Because of the thick mill diesel engine cylinder body two sides, then the jig design use "two sells the localization at the same time", Manual clamps, an attire clamps processes the diesel engine to be mad the cylinder body two sides; according to will work receives the cutting force to calculate clamps the strength; again according to clamps the strength , choose the determination clamp the special-purpose part.
During the design, the standard parts are selected as far as possible, to reduced the production cost, increased the economic efficiency. This design may achieve the effects as fowllows: the modular milling machine and the jig can satisfy its the quality requirement at working status,it’s safe, and easy to service.
Key word: the modular milling machine; air cylinder; milling cutter; jig








