The Influence Factors of Shrink-fit Tool Holder Clamping Temperature

doi:10.3901/JME.2017.01.174

Abstract

Abstract: A research of the length of induction heating, shrink-fit tool holder thickness, cone angle, length of fit and inner diameter etc. for the influence of minimum contact surface displacement difference with the holder to find the exact relationship between tolerance and minimum clamping temperature. The interference characteristics of holder and tool with the parameterized finite element model by ANSYS parametric design language and verified by experiment for the reliability of the model is built. The minimum displacement difference is calculated by getting the displacement distribution of the contact surface on tool holder with the combination of characterization methods between holder and tool contact status. Calculations indicated that the minimum thermal displacement difference of the fitting surface will decrease with the increase of holder thickness, length of fit, cone angle; it will increase with the inner diameter increasing, and it is good for the clamping if increase the length of induction heating appropriately. Finally, we established the calculating formula between interferencef and the minimum clamping temperature T, it has a practical guiding significance for the clamping process of the cutting tool and the design of the holder.

Key words: fitting tolerance, parameterized model, shrink-fit tool holder, clamping temperature

ZHOU Houming, LIU Bo, ZHANG Gaofeng, ZHOU Youhang, PENG Ruitao. The Influence Factors of Shrink-fit Tool Holder Clamping Temperature[J]. Journal of Mechanical Engineering, 2017, 53(1): 174-179.

References

[1] ZHOU H，WANG C，DENG J，et al. Radial grip rigidity of the matching of lengthened shrink-fit holder and cutter in high-speed milling [J]. Chinese Journal of Mechanical Engineering，2012，25(1)：179-183.

[2] ZHOU H，WANG C，TANG D，et al. Dynamic analysis of the lengthened shrink-fit holder and cutting tool system in high-speed milling[J]. Machining Science and Technology，2012，16(2)：157-172.

[3] 周后明，王成勇，赵振宇. 热缩刀杆与刀具配合的接触特性分析[J]. 机械设计与研究，2008，24(1)：75-80.

ZHOU Houming，WANG Chengyoug，ZHAO Zhenyu. Contact performance of matching of lengthened shrink-fit holder and cutting tool in high speed milling[J]. Journal of Machine Design and Research，2008，24(1)：75-80.

[4] 周后明，邓建新. 高速加工热装式加长刀杆与刀具配合的力学特性分析[J]. 制造技术与机床，2009(7)：52-57.

ZHOU Houming，DENG Jianxin. Mechanical characteristic of the matching of lengthened shrink-fit holder and cutting tool in high-speed milling[J]. Manufacturing Technology & Machine Tool，2009(7)：52-57.

[5] ARSLAN M A. Assessing the effects of induction rotor transient heating on shaft interference fit during force-stopped condition [J]. Electric Power Components and Systems，2005，33：1097-1104.

[6] PEDERSEN P. On shrink fit analysis and design [J]. Computational Mechanics，2006，37：121-130.

[7] NAMAZI M，ALTINTAS Y，ABE T，et al. Modeling and identification of tool holder–spindle interface dynamics [J]. International Journal of Machine Tools & Manufacture，2007，47：1333-1341.

[8] Schmitz T L，POWELL K，WON D，et al. 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.

[9] 邹雨，庄茁，黄克智，等. 超弹性材料过盈配合的轴对称平面应力解答[J]. 工程力学，2004，21(6)：72-75

ZOU Yu，ZHUANG Zhou，HUANG Kezhi, et al. The solutions of axisymmetric plane stress for a hyperelastic material interference problem [J]. Encineering Mechanics， 2004，21(6)：72-75

[10] 王新敏，李义强，许宏伟. ANSYS结构分析单元与应用[M]. 北京：人民交通出版社，2011

WANG Xinmin，LI Yiqiang，XU Hongwei. ANSYS structural analysis element and applications [M].Beijing：China Communications Press，2011.

[11] 龚曙光，谢桂兰，黄云清. ANSYS参数化编程与命令手册[M]. 北京：机械工业出版社，2009.

GONG Shuguang，XIE Guilan，HUANG Yunqing. ANSYS parametric programming and Command Reference [M]. Beijing：China Machine Press，2009.

[12] GOPAL V，WHITING M J，CHEW J W，et al. Thermal contact conductance and its dependence on load cycling [J]. International Journal of Heat and Mass Transfer，2013，66：444-450.

[13] 俞汉清，李晓沛，赵秉厚. 公差与配合-过盈配合计算和选用指南[M]. 北京：中国标准出版社，1990．

YU Hanqing，LI Xiaopei，ZHAO Binghou. Tolerance and cooperation - interference fit calculation and selection guide [M]. Beijing：China Standard Press，1990.

[14] 马平，张伯霖．高速机床电主轴过盈配合量的计算[J]．组合机床与自动化加工技术，1999(7)：22-27.

MA Ping，ZHANG Bolin. Calculation of the interference fit for the electro-spindle of high speed machine tool[J]. Modular Machine Tool & Automatic Manufacturing Technique，1999，(7)：22-27.

[15] 盛骤，谢式千，潘承毅. 概率论与数理统计[M]. 北京：高等教育出版社，2010

SHENG Zhou，XIE Shiqian，PAN Chengyi. Probability theory and mathematical statistics [M]. Beijing：Higher Education Press，2010