摩托车曲轴箱孔系钻铰复合加工工艺
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摘要
针对重庆某发动机生产制造企业对发动机曲轴箱孔系加工精度及生产节拍要求,开发设计了一台工艺、结构、布局及性能等都针对曲轴箱加工的专用机床。对工件加工技术要求及难点进行分析后得出加工难点:工件材料软,待加工孔不同面且加工精度较高,从而导致工件加工合格率及生产效率低。为解决此问题,拟定了全新的工艺方案,并确定了各项工艺参数,同时,对专用夹具工作原理进行了介绍。通过实际上线生产,工艺及装备均满足企业对加工精度及生产节拍的需求。
Aiming at Chongqing' s some engine manufacture enterprise' demand towards the engine crankcase's hole series' manufacture accuracy and takt time,a special manufacture machine tool is developed and designed,whose craft,structure,layout,and function are intended for the manufacture of the crankcase.After analyzing the demand and problem of the manufacture of the workpiece,we knowthat soft workpiece material,different holes to be machined and high matching accuracy lead to the the lowqualification rate of workpiece machining production efficiency. To solve this problem,the craft scheme was developed and the various craft parameters were determined At the same time,the working principle of the special fixture was introduced Through,online manufacture in practice,both the craft and facilities meet the enterprise' s demand of production accuracy and takt time.
Aiming at Chongqing' s some engine manufacture enterprise' demand towards the engine crankcase's hole series' manufacture accuracy and takt time,a special manufacture machine tool is developed and designed,whose craft,structure,layout,and function are intended for the manufacture of the crankcase.After analyzing the demand and problem of the manufacture of the workpiece,we knowthat soft workpiece material,different holes to be machined and high matching accuracy lead to the the lowqualification rate of workpiece machining production efficiency. To solve this problem,the craft scheme was developed and the various craft parameters were determined At the same time,the working principle of the special fixture was introduced Through,online manufacture in practice,both the craft and facilities meet the enterprise' s demand of production accuracy and takt time.
引文
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[12]李洪.机械加工工艺手册[M].北京:北京出版社,1999.
[2]左支柳.摩托车右曲轴箱油道堵头压入工艺改进[J].现代制造工程,2004(2):121-122.
[3]宗力.持续优化再创格局—解析2016年宗申动力摩托车发动机代理商大会[J].摩托车信息,2016(4):104-107.
[4]王振选.浅谈摩托车曲轴箱、轴承类工具[J].摩托车技术,2009(3):72-76.
[5]肖铁忠,黄娟,罗静.浅摩托车发动机缸体三面七孔加工专用夹具设计[J].组合机床与自动化加工技术,2016(5):126-128.
[6]杨宏强.CG150摩托车发动机性能优化的研究[D].洛阳:河南科技大学,2011.
[7]杨叔子.机械加工工艺师手册[M].北京:机械工业出版社,2006.
[8]刘登平.机械制造工业及机床夹具设计[M].北京:北京理工大学出版社,2008.
[9]艾兴,肖诗纲.切削用量简明手册[M].北京:机械工业出版社,1994.
[10]叶明亮.木制楼梯扶手弯头数控专用加工机床总体设计[D].哈尔滨:东北林业大学,2008.
[11]赵勇.摩托车曲轴箱孔系钻铰复合加工专用机床的研究[D].重庆:重庆理工大学,2013
[12]李洪.机械加工工艺手册[M].北京:北京出版社,1999.