大悬伸状态加工水室封头重型铣削振动分析
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摘要
针对大悬伸状态下加工水室封头产生的重型铣削振动,以重型铣削水室封头现场加工实验为基础,分析重型铣削振动产生的原因,并根据现场实验对工件已加工表面形貌进行对比分析。建立重型铣削刀具偏心跳动模型、刀具与主轴系统的轻微变形模型和进给系统刚度的模型,分析其对重型铣削瞬时切削厚度的影响,同时建立重型铣削力数学模型和铣削轨迹模型。分析重型铣削系统振动影响因素及规律,振动模型预测结果与实验结果吻合较好。该工作为进一步研究重型铣削振动特性提供依据。
This paper analyzes the reasons for the heavy milling vibration generated from the processing water chamber head under a large overhanging,and compares the machined surface of workpieces based on field processing experiments.An eccentricity runout model of the heavy milling cutter,a slight deformation model of the cutting tool and spindle system,and a rigidity model of the feeding system were established,and the effect of the instantaneous cutting thickness was analyzed.Meanwhile,the mathematical model of the heavy cutting force and milling trajectory model were established to study the heavy milling system vibration and rules.The heavy milling prediction results agree with the experimental results.Thus,this research will lay a foundation for further study on the vibration characteristics of heavy milling.
This paper analyzes the reasons for the heavy milling vibration generated from the processing water chamber head under a large overhanging,and compares the machined surface of workpieces based on field processing experiments.An eccentricity runout model of the heavy milling cutter,a slight deformation model of the cutting tool and spindle system,and a rigidity model of the feeding system were established,and the effect of the instantaneous cutting thickness was analyzed.Meanwhile,the mathematical model of the heavy cutting force and milling trajectory model were established to study the heavy milling system vibration and rules.The heavy milling prediction results agree with the experimental results.Thus,this research will lay a foundation for further study on the vibration characteristics of heavy milling.
引文
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[12]Masatoshi H,Atsuo T,Ho Y J.Behavior of cutting heat in high speed cutting[J].Journal of JSPE,1998,64(7):1067-1071.
[13]陈勇,刘雄伟,俞铁岳,等.再生振动和刀具偏心对立铣加工精度综合影响的研究[J].工具技术,2006,40(5):28-32.Chen Yong,Liu Xiongwei,Yu Tieyue,et al.Research on influences of regenerative vibration and cutter eccentricity on machining accuracy in end milling[J].Tool Technology,2006,40(5):28-32.(in Chinese)
[14]Chen Hongyu,Du Junyi,Deng Lintao.The comparison and analysis of SA508series steel used for nuclear reactor pressure vessel forgings[J].Heavy Castings and Forgings,2008(1):1-3.
[15]Takasu S,Masuda M.Influence of study vibration with amplitude upon surface roughness in diamond machining[J].Annals of the CIRP,1985,34(1):463-467.
[16]张军,唐文彦,强锡富.切削振动条件下的表面轮廓仿真分析[J].工具技术,2000,34(2):43-47.Zhang Jun,Tang Wenyan,Qiang Xifu.Simulation analysis of surface profile with cutting vibration[J].Tool Technology,2000,34(2):43-47.(in Chinese)
[2]严复钢,何耿煌,刘献礼.极端重载条件下高效切削刀具技术[J].哈尔滨理工大学学报,2011,16(6):11-16.Yan Fugang,He Genghuang,Liu Xianli.Extreme under heavy load and high efficiency cutting tool technology[J].Journal of Harbin University of Science and Technology,2011,16(6):11-16.(in Chinese)
[3]江浩,龙新华,孟光.侧铣加工振动与表面轮廓形成[J].上海交通大学学报,2008,42(5):730-735.Jiang Hao,Long Xinhua,Meng Guang.The cutting vibration and surface profile generation in peripheral milling[J].Journal of Shanghai Jiao Tong University,2008,42(5):730-735.(in Chinese)
[4]Kenkichi I,Keiichi Y,Tetsutaro H.Chatter control in screw thread turning by spindle speed variation[J].Transactions of the Japan Society of Mechanical Engineers,Part C,2004,70(5):1529-1534.
[5]Rojas J,Liang C.Experimental investigation of active machine tool vibration control[J].Smart Structures and Materials,Proceedings of SPIE,1996,2721:373-384.
[6]吴石,刘献礼,肖飞.铣削颤振过程中的振动非线性特征试验[J].振动、测试与诊断,2012,32(6):935-940.Wu Shi,Liu Xianli,Xiao Fei.Experimental study of the nonlinear characteristics of vibration in milling chatter[J].Journal of Vibration,Measurement&Diagnosis,2012,32(6):935-940.(in Chinese)
[7]王保升.瞬时铣削力模型参数辨识及其试验研究[D].镇江:江苏大学,2011.
[8]李成锋.介观尺度铣削力与表面形貌建模及工艺优化研究[D].上海:上海交通大学,2007.
[9]Paris H,Peigne G,Mayer R.Surface shape prediction in high speed milling[J].International Journal of Machine Tools and Manufacture,2004,44:1567-1576.
[10]李沪曾,Spur G.机床切削振动仿真计算的结构动力学模型[J].同济大学学报,1995,23(5):541-546.Li Huzeng,Spur G.Structure dynamic model simulation machine cutting vibration[J].Journal of Tongji University,1995,23(5):541-546.(in Chinese)
[11]李沪曾,徐炳楠.机床相对激振试验分析[J].振动、测试与诊断,1998,18(2):143-148.Li Huzeng,Xu Bingnan.Experimental analysis on vibration of machine tool[J].Journal of Vibration,Measurement&Diagnosis,1998,18(2):143-148.(in Chinese)
[12]Masatoshi H,Atsuo T,Ho Y J.Behavior of cutting heat in high speed cutting[J].Journal of JSPE,1998,64(7):1067-1071.
[13]陈勇,刘雄伟,俞铁岳,等.再生振动和刀具偏心对立铣加工精度综合影响的研究[J].工具技术,2006,40(5):28-32.Chen Yong,Liu Xiongwei,Yu Tieyue,et al.Research on influences of regenerative vibration and cutter eccentricity on machining accuracy in end milling[J].Tool Technology,2006,40(5):28-32.(in Chinese)
[14]Chen Hongyu,Du Junyi,Deng Lintao.The comparison and analysis of SA508series steel used for nuclear reactor pressure vessel forgings[J].Heavy Castings and Forgings,2008(1):1-3.
[15]Takasu S,Masuda M.Influence of study vibration with amplitude upon surface roughness in diamond machining[J].Annals of the CIRP,1985,34(1):463-467.
[16]张军,唐文彦,强锡富.切削振动条件下的表面轮廓仿真分析[J].工具技术,2000,34(2):43-47.Zhang Jun,Tang Wenyan,Qiang Xifu.Simulation analysis of surface profile with cutting vibration[J].Tool Technology,2000,34(2):43-47.(in Chinese)