Mathematical modeling and example application analysis of the positioning pin connection of the rotary fixture in horizontal machining center
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摘要: 卧式加工中心转台回转夹具的典型结构是通过在卧式加工中心工作台上配置转台、尾座和夹具体,进而构成摇篮式转台,该种方式可以使加工工序集中化,进一步提高零件的加工质量和加工效率。在基于摇篮式转台回转夹具构成型式分析的基础上,以定位销连线为研究对象,通过讨论定位销连线与转台回转轴线及机床坐标系三者之间平行关系的几种情况,进而建立数学模型,并通过实例的方式解决生产过程中遇到的实际问题。Abstract: The typical structure of the rotary fixture for the horizontal machining center turntable is to configure the turntable, tailstock, and clamp on the workbench of the horizontal machining center, thereby forming a cradle type turntable. This method can centralize the machining process, further improve the machining quality and efficiency of the parts. Based on the analysis of the composition type of the cradle type rotary fixture, the positioning pin connection is taken as the research object. By discussing several parallel relationships between the positioning pin connection, the rotary axis of the turntable, and the machine coordinate system, a mathematical model is established, and practical problems encountered in the production process are solved through examples.
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[1] 大连组合机床研究所.组合机床设计:第一册 机械部分[M]. 北京:机械工业出版社,1975:208-210. [2] 王华. 数控机床功能部件优化设计选型应用手册:数控转台分册[M]. 北京:北京工业出版社,2018:14-18. [3] 陈鹏,易孟青,莫家麟,等. 工装夹具及回转工作台在加工中心上的应用[J]. 机电工程技术,2011(11):106-108. [4] 王文剑,程传伟,郭崇才,等. 卧式加工中心工作台回转中心坐标的调整[J]. 制造技术与机床,2013(9):119-120. [5] 钟顺智. 卧式加工中心回转中心及旋转坐标计算[J]. 金属加工:冷加工,2015(19):68-69. [6] 孙岗存,袁丽. 数控回转工作台的设计研究[J]. 制造技术与机床,2011(11):79-81. doi: 10.3969/j.issn.1005-2402.2011.11.023 [7] 何新林,尚苗,何宝庆,等. 大型精密数控转台的装配工艺技术研究[J]. 制造技术与机床,2021(7):97-100. [8] 韩廷超,柳耀阳,仇健,等. 回转工作台关键部件装配工艺研究[J]. 机床与液压,2018,46(16):10-12. doi: 10.3969/j.issn.1001-3881.2018.16.003 [9] 黄同舟. 组合机床样件设计[J]. 组合机床与自动化加工技术,1993(4):15-22. [10] 李生斌,董欣胜. 卧式加工中心配置回转夹具回转中心位置误差的检验[J]. 组合机床与自动化加工技术,2007(7):93-95.