摘要
HSK热装刀柄是高速数控机床重要通用部件之一,它是目前应用最为广泛的刀柄。热装刀柄与刀具配合的原理是热胀冷缩,刀柄感应加热的温度会影响到刀柄热变形量大小,从而影响刀具与刀柄的配合性能。先从理论上分析了热装夹头感应加热模型;再使用ANSYS中的电磁热结构耦合有限元分析,得到理论上感应加热的最优温度;最后,通过实验验证得到刀柄实际装配时加热的最优温度。分析了传统加热与最优化加热的优劣,有限元分析的最优温度与实际得到数据的原因。
HSK shrink toolholder is widely used recently. The principle an important part of the high speed which the tool is embeded into the CNC machine tool and it is most toolholder is expanding with heat and contracting with cold, the temperature of toolholder by induction heating will affect the deformation, so that it will influence the performance of the tool and with the cooperation of toolholder. Firstly, it analyzes the induction heating model of hot clamping head in theory ; Secondly, it gets the theoretic optimal temperature by electromagnetism-thermal-structure FEA with ANSYS software, Lastly, the experimental data is acquired through the actual heating. Also, it analyses the strengths and weaknesses of traditional heating and optimal heating and the reason which the different optimal temperature between FEA and experiment.
出处
《组合机床与自动化加工技术》
北大核心
2012年第9期79-82,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金(50675088
510751927)
高档数控机床与基础制造装备科技重大专项(2009ZX04012-012)
关键词
热装夹头
感应加热
最优温度
热变形
hot clamping head
induction heating
optimal temperature
thermal deformation
