角度可调式线切割机床夹具设计及有限元分析
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摘要
为解决线切割机床加工工件坡口时装夹费时且定位精度低等问题,设计了一种角度可调式线切割机床夹具。在传统装夹方法的基础上,通过分析零件结构与技术要求,制定夹具的结构方案,设计夹具的定位装置、夹紧装置和调节装置等关键结构,并利用有限元法评估夹具在实际载荷作用下的几何变形和应力状态。结果表明:该夹具强度可靠、操作简单且切割角度调整方便,可极大提高工件的装夹效率和加工精度,满足大批量生产要求。
In order to solve the problems of time-consuming and low-precision clamping of the workpiece by the wire cutting machine,a kind of angle-adjustable fixture of wire cutting machine is designed.Based on the traditional clamping method,by analyzing the structure and technical requirements of the parts,the structure of the fixture and the key structures,such as fixture positioning device,clamping device and adjusting device are designed.And the geometrical deformation and stress state of the fixture under the actual load through the finite element method are analyzed.The results show that the fixture has the advantages of reliable strength,simple operation and convenient adjustment of cutting angle,which greatly improves the clamping efficiency and machining accuracy of parts.The fixture can meet the requirements of mass production.
In order to solve the problems of time-consuming and low-precision clamping of the workpiece by the wire cutting machine,a kind of angle-adjustable fixture of wire cutting machine is designed.Based on the traditional clamping method,by analyzing the structure and technical requirements of the parts,the structure of the fixture and the key structures,such as fixture positioning device,clamping device and adjusting device are designed.And the geometrical deformation and stress state of the fixture under the actual load through the finite element method are analyzed.The results show that the fixture has the advantages of reliable strength,simple operation and convenient adjustment of cutting angle,which greatly improves the clamping efficiency and machining accuracy of parts.The fixture can meet the requirements of mass production.
引文
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[12]周燕,李小龙.高效多功能心轴夹具的设计与应用[J].工具技术,2018,52(8):156-157.
[2]彭惟珠.数控线切割机床角度多变专用夹具设计[J].模具制造技术,2017,17 (9):74-77.
[3]孟庆东.线切割机床的夹具及制作[J].机械工人:冷加工,2006(10):46-48.
[4]陈世昌,丁志英,刘雄飞,等.一种线切割机床的斜顶加工夹具:中国,202825260U[P].2013-03-27.
[5]刘苏宜,王国荣,石永华 .V型焊接坡口中心的高精度提取方法[J].机械科学与技术,2008,27(2):209-212.
[6]翟雪焕,原国栋.不锈钢复合钢板基层采用埋弧焊的焊接坡口设计[J].金属铸锻焊技术,2008(11):118-119.
[7]冯冉,蔡长韬.线切割机床电极丝振动及其有限元分析[J].机床与液压,2010,38(23):127-130.
[8]何宁.机械制造技术基础[M].北京:高等教育出版社,2011.
[9]吴拓.机床夹具设计[M].北京:机械工业出版社,2009.
[10]刘昌领,罗晓兰.基于ANSYS的六缸压缩机连杆模态分析及谐响应分析[J].机械设计与制造,2013(3):26-29.
[11]吴卫东,廖文和.基于特征的夹具设计信息模型及其应用研究[J].组合机床与自动化加工技术,2013(5):94-97.
[12]周燕,李小龙.高效多功能心轴夹具的设计与应用[J].工具技术,2018,52(8):156-157.