基于ANSYS的激光选区熔化装备进给传动系统结构优化设计
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摘要
成形缸的进给传动系统作为激光选区熔化装备的主要组成部分,其静动态性能是影响激光选区熔化铺粉精度的关键因素,而进给传动系统的结构直接影响静动态特性的好坏,因此有必要对其进行设计与分析。以有限元软件ANSYS为工具,采用有限元的方法对进给传动系统进行静动态特性分析,仿真分析了单丝杆有无导柱的支承方式以及滚珠丝杆的安装位置对进给传动系统的影响。结果表明:有导柱支撑并且滚珠丝杆安装在成形缸正下方时,系统的静动态性能最佳。此外,在工艺方面研究了铺粉压力对该进给系统的影响。
As the main part of selective laser melting( SLM) equipment,forming cylinder transmission feed' s system static and dynamic characteristics is the key factor influencing the accuracy of spreading powder of SLM. Its structure determines directly the static and dynamic characteristics of the system,so it is necessary to design and analyze the structure of the system. Finite element software ANSYS was used as a tool to analyze the static and dynamic characteristics of the forming cylinder transmission feed' s system with finite element method( FEM). Influences of bearing method of single screw with or without guide rod and installation position of screw on the feed drive system were analyzed. The results show that the transmission feed system has the best static and dynamic characteristics when screw mounted right under the forming cylinder with guide rod. In addition,influence of technical spreading powder's pressure on the system is studied.
As the main part of selective laser melting( SLM) equipment,forming cylinder transmission feed' s system static and dynamic characteristics is the key factor influencing the accuracy of spreading powder of SLM. Its structure determines directly the static and dynamic characteristics of the system,so it is necessary to design and analyze the structure of the system. Finite element software ANSYS was used as a tool to analyze the static and dynamic characteristics of the forming cylinder transmission feed' s system with finite element method( FEM). Influences of bearing method of single screw with or without guide rod and installation position of screw on the feed drive system were analyzed. The results show that the transmission feed system has the best static and dynamic characteristics when screw mounted right under the forming cylinder with guide rod. In addition,influence of technical spreading powder's pressure on the system is studied.
引文
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[2]杨永强,宋长辉,王迪,等.激光选区熔化技术及其在个性化医学中的应用[J].机械工程学报,2014(21):140-151.YANG Yongqiang,SONG Changhui,WANG Di,et al.Selective Laser Melting and Its Applications on Personalized Medical Parts[J].Journal of mechanical engineering,2014(21):140-151.
[3]YVES-CHRISTIANA Hagedorn,JANA Wilkes,WILHELM Meiners,et al.Net Shaped High Performance Oxide Ceramic Parts by Selective Laser Melting[J].Physics Procedia,2010,5(Part B):587-594.
[4]张仟,党新安,杨立军.选区激光烧结设备成型缸传动系统及铺粉精度的研究[J].机械传动,2011,35(11):83-85.ZHANG Qian,DANG Xinan,YANG Lijun.Study on Forming Cylinder Transmission System and the Accuracy of Spreading Powder of Selective Laser Sintering Equipment[J].Mechanical Transmission,2011,35(11):83-85.
[5]张仟,党新安,杨立军,等.选区激光烧结成型设备铺粉装置振动特性分析[J].陕西科技大学学报(自然科学版),2011,29(5):6-8.ZHANG Qian,DANG Xinan,YANG Lijun,et al.Vibration Characteristic Analysis of Spreading Powder Device of Selective Laser Sintering Molding Machine[J].Journal of Shanxi University of Science and Technology,2011,29(5):6-8.
[6]陈光霞,曾晓雁.选择性激光熔化激光快速成型铺粉装置设计[J].制造技术与机床,2010(3):57-59.CHEN Guangxia,ZENG Xiaoyan.Design on SLM Powder Coating Device[J].Manufacturing Technology and Machine Tool,2010(3):57-59.
[7]陈光霞.SLM铺粉设备的误差分析及控制方法[J].机械,2010,37(4):26-27.CHEN Guangxia.Errors Analysis and Control Methods on Powder Coating Device of Selective Laser Melting[J].Manufacturing Technology and Machine Tool,2010,37(4):26-27.
[8]史玉升,鲁中良,章文献,等.选择性激光熔化快速成形技术与装备[J].中国表面工程,2006,19(z1):150-153.SHI Yusheng,LU Zhongliang,ZHANG Wenxian,et al.The Technology and Equipment of Selective Laser Melting[J].China Surface Engineering,2006,19(z1):150-153.
[9]杨永强,刘洋,宋长辉,等.金属零件3D打印技术现状及研究进展[J].机电工程技术,2013(4):1-7.YANG Yongqiang,LIU Yang,SONG Changhui,et al.The Status and Progress of Manufacturing of Metal Parts by 3D Printing Technology[J].Mechanical and Electrical Engineering Technology,2013(4):1-7.
[10]董新蕊.3D打印行业巨头德国EOS公司专利分析[J].中国发明与专利,2013(12):45-50.
[11]郭成龙,袁军堂,李奎,等.基于结合面参数的整机动态特性分析与试验研究[J].机械设计与制造,2012(2):149-151.GUO Chenglong,YUAN Juntang,LI Kui,et al.Analysis and Testing Research on Dynamic Properties of Machine Tools Based on Joints Parameters[J].Mechanical Design and Manufacture,2012(2):149-151.
[12]周乐,袁军堂,汪振华,等.基于ANSYS的横梁进给系统结构优化[J].机床与液压,2014(15):154-158.ZHOU Yue,YUAN Juntang,WANG Zhenhua,et al.Structure Optimization of Transversal Feed System Based on ANSYS[J].ANSYS Machine Tool and Hydraulic,2014(15):154-158.
[13]丁喜合,袁军堂,汪振华,等.数控机床双丝杠驱动直线进给系统静动态特性分析[J].机械设计与制造,2014(3):155-157.DING Xihe,YUAN Juntang,WANG Zhenhua,et al.Analysis of Static and Dynamic Characteristics of Linear Feed System with Double Ball Screw[J].Mechanical Design and Manufacture,2014(3):155-157.
[14]赵志国,柏林,李黎,等.激光选区熔化成形技术的发展现状及研究进展[J].航空制造技术,2014(19):46-49.ZHAO Zhiguo,Berlin,LI Li,et al.Status and Progress of Selective Laser Melting Forming Technology[J].Aeronautical Manufacturing Technology,2014(19):46-49.
[15]白俊生,唐亚新,余承业.激光烧结快速成型铺粉辊筒运动分析[J].机械制造,1997(9):15-18.
[16]郭庆梁.模具设计[M].北京:中国轻工业出版社,2010.
[17]刘营营,王强,杨晋穗,等.基于ANSYS的液压剪板机刀架有限元分析[J].组合机床与自动化加工技术,2009(6):35-39,43.LIU Yingying,WANG Qiang,YANG Jinsui,et al.Finite Element Analysis of Hydraulic Shears’Too I Carrier Based on ANSYS[J].Modular Machine Tool&Automatic Processing Technology,2009(6):35-39,43.