Modeling approach for interface stiffness of spindle-tool holder

• Article •

Modeling approach for interface stiffness of spindle-tool holder

GAO Xiang-sheng1,2，ZHANG Yi-du1,2，ZHANG Hong-wei3

1.State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing 100191, China;2.School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China;3.School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China

Received:2013-01-25 Revised:2013-01-25 Online:2013-01-25 Published:2013-01-25

主轴—刀柄结合面刚度建模方法

高相胜1,2，张以都1,2，张洪伟3

1.北京航空航天大学虚拟现实技术与系统国家重点实验室，北京100191;2.北京航空航天大学机械工程及自动化学院，北京100191;3.北京石油化工学院机械工程学院，北京102617

Abstract

Abstract: To construct interface stiffness of spindle-tool holder model under high speed status, a semi-analytical method combined classic elasticity theory with Yoshimura integral method was proposed. On this basis, a dynamic model of spindle-tool holder coupling system under high speed status was established. Dynamic characteristic of the system was analyzed by utilizing whole transfer matrix method based on Riccati transformation. Effects of softening interface stiffness of spindle speed on dynamic characteristic of the system were investigated. By calculating and contrasting analysis, the conclusion showed that the centrifugal force induced by high speed rotation had great effects on dynamic characteristics of spindle-tool holder coupling system. The solution for interface stiffness of spindle-tool holder under high speed status was realized by proposed model and method.

Key words: spindle, high speed rotation, stiffness softening, interface stiffness, dynamic characteristics

摘要： 为建立高速旋转状态下的主轴—刀柄结合面刚度模型，提出了经典弹性理论和吉村允孝积分法相结合的半解析方法，求解在高速旋转状态下的主轴—刀柄结合面刚度。采用文献［2］的实验数据验证了该方法的有效性。在此基础上建立了在高速旋转状态下的主轴—刀具耦合系统的动力学模型。采用基于Riccati变换的整体传递矩阵法，对主轴—刀具耦合系统的动态特性进行了分析。考察了主轴转速软化结合面刚度因素对系统动态特性的影响。通过对比说明，高速旋转产生的离心力对主轴—刀具耦合系统的动态特性有较大影响；所提的计算模型和方法可以实现高速旋转状态下的主轴—刀柄结合面刚度的求解。

关键词: 主轴, 高速旋转, 刚度软化, 结合面刚度

CLC Number:

TG502
TH113

GAO Xiang-sheng1,2，ZHANG Yi-du1,2，ZHANG Hong-wei3. Modeling approach for interface stiffness of spindle-tool holder [J]. .

高相胜1,2，张以都1,2，张洪伟3. 主轴—刀柄结合面刚度建模方法[J]. .

[1]	. Accurate modeling of spindle system considering transition section between chuck and tool [J]. , 2021, 27(8): 2215-2225.
[2]	. Wear status identification of end milling cutter under complex cutting conditions based on clutter signal of spindle current [J]. , 2021, 27(12): 3429-3438.
[3]	. CNC machine tool spindle thermal error modeling based on ensemble BP neural network [J]. , 2018, 24(第6): 1383-1390.
[4]	. Errors computation and tolerance optimization design of lathe spindle system based on controlling point variation model [J]. , 2017, 23(第8期): 1692-1699.
[5]	. Modeling the motion of milling cutter considering spindle motion error and tool clamping error [J]. , 2017, 23(第11): 2497-2507.
[6]	. Dynamic characteristics simulation of coupled double-rotor system considering contact condition of tool holder [J]. , 2016, 22(第10期): 2389-2395.
[7]	. Application of time series analysis in thermal error modeling of motorized spindle [J]. , 2015, 21(第5期): 1359-1367.
[8]	. High-speed spindle thermal error modeling based on genetic algorithm and BP neural network [J]. , 2015, 21(第10期): 2627-2636.
[9]	. Seven degrees of freedom dynamic model of angular contact ball bearing with defects [J]. , 2014, 20(11): 2836-2842.
[10]	CHENG Qiang, SONG Xiao-lei, CAI Li-gang, ZHAO Yong-sheng, LIU Zhi-feng. Contact finite element analysis on connection performances of spindle/toolholder system [J]. , 2012, 18(04): 0-0.
[11]	WANG Bo，SUN Wei，WEN Bang-chun. Inherent characteristic solution of motorized spindle based on receptance coupling substructure analysis [J]. , 2012, 18(02): 0-0.
[12]	FU Hong-ya, ZHANG Xiang+, HAN Zhen-yu, SUN Ya-zhou. Modeling and simulation of micro-ball-end milling forces [J]. , 2011, 17(07): 0-0.
[13]	ZHANG Ting,, YE Wen-hua, LIANG Rui-jun, ZHAO Rui-yue. Foresighted prediction model of spindle thermal error [J]. , 2010, 16(11): 0-0.