热缩刀杆装夹温度的影响因素*
网络出版日期: 2017-01-05
基金资助
* 国家自然科学基金(51375418,51375419,51275436)、湖南省自然科学基金(12JJ8015、13JJ8007)、湖南省高校创新平台开放基金(13K040)、深圳市科技计划(JCYJ20160415114050831)资助项目; 20151211收到初稿,20160909收到修改稿;
The Influence Factors of Shrink-fit Tool Holder Clamping Temperature
Online published: 2017-01-05
为得到热缩刀杆与刀具配合公差与其最小装夹温度之间的精确关系,对影响刀杆接触面最小热位移差值的感应加热长度、热缩刀杆壁厚、锥角、配合长度、内径等因素进行了研究。采用ANSYS参数化设计语言,构建具有过盈特征的刀杆与刀具配合的参数化有限元模型,通过试验验证了模型的可靠性。通过获取热缩刀杆接触面的位移分布,结合刀杆与刀具接触状态的表征方法对接触面上最小热位移差值进行了计算。计算结果表明,配合面最小热位移差值随着热缩刀杆壁厚、配合长度、锥角的增加而减小,随着内径的增大而增大,且适当增大感应加热长度也有利于刀具的装夹。最终建立了配合公差所对应的过盈量?与最小装夹温度T之间的计算关系式,对刀具在热缩刀杆中的装夹及刀杆的结构设计提供理论指导。
周后明 , 刘博 , 张高峰 , 周友行 , 彭锐涛 . 热缩刀杆装夹温度的影响因素*[J]. 机械工程学报, 2017 , 53(1) : 174 -179 . DOI: 10.3901/JME.2017.01.174
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