Dynamic Property Analysis of HSK Spindle-toolholder System Based on Joint Part

Abstract

Abstract:

The HSK spindle-toolholder FEM was modeled and the stiffness and damp parameters of joint part were identified with elastic theory and damp theory.The HSK spindle-toolholder system could be divided into three parts,such as HSK spindle,spindle-toolholder joint part and toolholder. HSK spindle and toolholder could be simplified as Timoshenko beam, and the FRF could be gained with receptance coupling theory.The spindle-toolholder joint part might be simplified as spring-damp model,and the FRF could be achieved with multi-points receptance coupling theory. Then the FRF of system was gained with rigid coupling theory.The spindle-toolholder was treated as rigid connection,five-points connection and seven-points connection,and the tip-point FRFs of system were computed.At last, comparing these FRFs with experimental FRF, some results may be obtained.

Key words: HSK spindle-toolholder system, frequency receptance function(FRF), joint part, dynamic performance

摘要：

建立了HSK主轴-刀柄结合部的有限元模型(FEM)，利用弹性理论和黏性阻尼理论辨识结合部内各位置的刚度和阻尼参数。提出将HSK主轴-刀柄系统分为HSK主轴、主轴-刀柄结合部和刀柄三部分:HSK主轴与刀柄简化为多段Timoshenko梁，并使用响应耦合法来计算其频响函数;主轴-刀柄结合部简化为多点弹簧-阻尼模型，采用多点响应耦合法来计算其频响函数;将各个部件的频响函数进行刚性耦合，进而获得基于结合部的HSK主轴-刀柄系统频响函数。分别假定HSK主轴-刀柄结合部为刚性连接、5点弹性连接和7点弹性连接,计算其频响函数,并与实验结果相比较得到相应的结论。

关键词: HSK主轴-刀柄系统, 频响函数, 结合部, 动态特性

CLC Number:

TG504

Chen Jian, Wang Guicheng, Tian Liang , Shen Chungen, Zheng Dengsheng. Dynamic Property Analysis of HSK Spindle-toolholder System Based on Joint Part[J]. China Mechanical Engineering, 2016, 27(03): 296-301.

陈建, 王贵成, 田良, 沈春根, 郑登升. 基于结合部的HSK主轴-刀柄系统动态特性分析[J]. 中国机械工程, 2016, 27(03): 296-301.

References

[1]Erturk A,Ozguven H N,Budak E.Analytical Modeling of Spindle-tool Dynamics on Machine Tools Using Timoshenko Beam Model and Receptance Coupling for the Prediction of Tool Point FRF[J].International Journal of Machine Tools & Manufacture,2006,46:1901-1912.

[2]Ozsahin O,Erturk A,Ozguven H N,et al. A Closed-form Approach for Identification of Dynamical Contact Parameters in Spindle-holder-tool Assemblies,International Journal of Machine Tools & Manufacture,2009,49:25-35.

[3]Namazi M,Altintas Y.Modeling and Identification of Tool Holder-spindle Interface Dynamics[J].International Journal of Machine Tools & Manufacture,2007,47:1333- 1341.

[4]程强,刘新宇,赵永胜.基于频响函数的主轴-刀柄结合部参数辨识方法[J].北京工业大学学报,2013,39(8):1144-1147.

Cheng Qiang,Liu Xinyu,Zhao Yongsheng.Identification of Dynamical Contact Parameters for Spindle-tool Holder Interface Based on Frequency Response Functions[J].Journal of Beijing Technology University,2013,39(8):1144-1147.

[5]Budak E,Ertürk A.A Modeling Approach for Analysis and Improvement of Spindle-holder-tool Assembly Dynamics[J].Annals of the CIRP,2006,56:1235-1239.

[6]Erturk A,Ozguven H N,Budak E.Effect Analysis of Bearing and Interface Dynamics on Tool Point FRF for Chatter Stability in Machine Tools by Using a New Analytical Model for Spindle-tool Assemblies[J].International Journal of Machine Tools & Manufacture, 2007, 47:23-32.

[7]楼梦麟,任志刚.Timoshenko简支梁的振动模态特性精确解[J].同济大学学报,2002,30(8):911-915.

Lou Menglin,Ren Zhigang.Precise Solution to Modal Characteristics of Timoshenko Pin- ended Beams[J].Journal of Tongji University, 2002, 30(8):911-915.

[8]Park S,Altintas Y,Movahhedy M.Receptance Coupling for End Mills[J].International Journal of Machine Tools & Manufacture, 2003,43:889-896.

[9]Schmitz T L,Powell K,Won D.Shrink Fit Tool Holder Connection Stiffness/Damping Modeling for Frequency Response Prediction in Milling[J].International Journal of Machine Tools & Manufacture,2007,47:1368-1380.

[10]Filiz S,Cheng C H,Powell K B,et al.An Improved Tool-holder Model for RCSA Tool-point Frequency Response Prediction[J].Precision Engineering,2009,33:26-36.

[11]Schmitz T L,Duncan G S.Receptance Coupling for Dynamics Prediction of Assemblies with Coincident Neutral Axes[J].Journal of Sound and Vibration,2006,289:1045-1065.

[12]Hanna I M,Agapiou J S.Modeling the HSK Toolholder-spindle Interface [J].Transactions of the ASME,2002,124:734-744.

[13]Agapiou J S.A Methodology to Measure Joint Stiffness Parameters for Toolholder-spindle Interface[J].Journal of Manufacture System,2005,24:13-20.

[14]陈建,王贵成.HSK 热装刀柄的加热性能分析[J].中国机械工程,2013,24(12):3235-3239.

Chen Jian,Wang Guicheng.Heat Performance Analysis of HSK Shrink Toolholder,China Mechanical Engineering,2013,24(12):3235-3239.

[15]王贵成,王树林,董广强.高速加工工具系统[M].北京:国防工业出版社,2005.