基于解析法的HSK主轴-刀柄结合部参数辨识

doi:10.3969/j.issn.1000-1093.2015.07.021

兵工学报 ›› 2015, Vol. 36 ›› Issue (7): 1309-1317.doi: 10.3969/j.issn.1000-1093.2015.07.021

基于解析法的HSK主轴-刀柄结合部参数辨识

陈建¹，田良²，商宏谟²，郑登升¹，王贵成^1,3

（1.江苏大学机械工程学院, 江苏镇江 212013；2.成都工具研究所有限公司，四川成都 610051；

收稿日期:2014-09-19 修回日期:2014-09-19 上线日期:2015-09-21
作者简介:陈建(1987—)，男，博士研究生
基金资助:
国家自然科学基金项目（51075192、51275217）；国家重大科技专项(2013ZX04009031)；南通市重点实验室资助项目（CP12014002）；江苏省博士创新基金项目(CXZZ13_0656)

Identification of Joint Part Parameters of HSK Spindle-toolholder Based on Closed-form Approach

CHEN Jian¹, TIAN Liang ², SHANG Hong-mo ², ZHENG Deng-sheng¹, WANG Gui-cheng^1,3

(1.School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;2.Chengdu tool research institute Co., LTD, Chengdu 610051, Sichuan, China;3.Nantong Polytechnic College, Nantong 226002, Jiangsu, China)

Received:2014-09-19 Revised:2014-09-19 Online:2015-09-21

摘要/Abstract

摘要： 辨识HSK主轴-刀柄结合部参数，是准确预测主轴系统动态特性及保证切削稳定性的基础条件。将HSK主轴-刀柄结合部简化为弹簧-阻尼模型。再根据HSK主轴-热装刀柄系统的频率响应矩阵，推导出HSK主轴-刀柄结合部的刚度矩阵。并基于耦合响应法计算热装刀柄两端的频响矩阵，利用有限差分法与实验测量相结合的方式，分别获得HSK主轴端点和HSK主轴-热装刀柄系统端点的频响矩阵。基于推导出的结合部刚度矩阵，分别辨识出HSK主轴-刀柄结合部的4个刚度参数k_yf、k_θf、k_ym和k_θm，以及4个阻尼参数c_yf、c_θf、c_ym和c_θm. 使用耦合响应法计算出HSK主轴-热装刀柄端点的频响函数，并与实验测量的各阶频率相比较，理论频率与实验结果最大差值为7.9%，进而验证辨识参数的准确性和辨识方法的合理性。

关键词: 机械制造工艺与设备, HSK主〖JP9〗轴-〖JP〗刀柄结合部, 频响矩阵, 参数辨识

Abstract: The basic condition for predicting the dynamic performance of spindle system and keeping the cutting stability is to identify the parameters of HSK spindle-toolholder joint part. HSK spindle-toolholder joint part is simplified as spring-damp model. According to the frequency response function(FRF) matrix of HSK spindle-shrink toolholder system, the stiffness matrix of HSK spindle-toolholder is derived. the FRF matrix of shrink toolholder is obtained based on coupling response method. The FRF matrixes of the tip points of HSK spindle and HSK spindle-shrink toolholder system are got by using finite difference method and experiment. Four stiffness parameters (k_yf, k_θf, k_ym and k_θm) and four damp parameters (c_yf, c_θf, c_ym and c_θm) are identified with the stiffness matrix. FRF of tip point of HSK spindle-toolholder system is achieved by using the coupling response method. The calculated frequency of HSK spindle-toolholder system is compared with the experimental frequency. The maximal difference between theoretical and experimental results is 7.9%.

Key words: manufaturing technology and equipment, HSK spindle-toolholder joint part, FRF matrix, parameter identification

中图分类号:

TG504

陈建，田良，商宏谟，郑登升，王贵成. 基于解析法的HSK主轴-刀柄结合部参数辨识[J]. 兵工学报, 2015, 36(7): 1309-1317.

CHEN Jian, TIAN Liang , SHANG Hong-mo , ZHENG Deng-sheng, WANG Gui-cheng. Identification of Joint Part Parameters of HSK Spindle-toolholder Based on Closed-form Approach[J]. Acta Armamentarii, 2015, 36(7): 1309-1317.

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基于解析法的HSK主轴-刀柄结合部参数辨识

Identification of Joint Part Parameters of HSK Spindle-toolholder Based on Closed-form Approach

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