电控永磁技术的磁极单元设计及在塑性加工中的应用  

Design of magnetic pole unit based on electro-permanent magnet technology and its application in plastic machining

作　　者：程啸 李宪宾 毛耀本 杨乐 秦泗吉[1] CHENG Xiao;LI Xian-bin;MAO Yao-ben;YANG Le;QIN Si-ji(Key Laboratory of Advanced Forging&Stamping Technology and Science,Ministry of Education of China,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学先进锻压成形技术与科学教育部重点实验室,河北秦皇岛066004

出　　处：《塑性工程学报》2020年第12期203-210,共8页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(51675466,51175451);河北省自然科学基金资助项目(E2018203373)。

摘　　要：对电控永磁磁极单元充退磁过程进行了分析,确定了磁极单元的主要结构参数的优化步骤。选取永磁体高度和宽度、可逆磁体长度和高度及磁极块高度5个结构参数作为自变量,根据理论计算并结合实践经验确定了各结构参数的取值范围。基于有限元分析,进行了正交仿真实验,得到了充磁和退磁磁吸力的实验结果。分析了结果数据的相关性,选择合适的正交模型并建立了回归方程,最终得到自变量的最优参数组合。根据优化结果,设计制作了双磁极单元的电控永磁吸盘,实验结果表明,采用该优化方法可以达到吸盘的充退磁要求,吸盘达到的最大磁吸力与设计值接近。最后,简述了电控永磁技术在快速换模和成形过程中的主要应用。The magnetization and demagnetization processes of magnetic pole unit of electro-permanent magnet were analyzed,and the optimization steps of the main structural parameters of magnetic pole unit were determined.Five structural parameters were selected as independent variables,that is the height and width of permanent magnet,length and height of reversible magnet and height of magnetic conductor.On the basis of theoretical calculation and practical experience,the value ranges of each structural parameter were confirmed.Based on finite element analysis(FEA),orthogonal simulation experiment was carried out,and the experimental results of magnetic attraction force for magnetization and demagnetization were obtained.The correlation of result data was analyzed,the appropriate orthogonal model was selected and regression equation was established.Finally,the optimal parameter combination of independent variables was determined.According to the optimization results,an electro-permanent magnetic chuck with double magnetic pole units was designed and manufactured.The experimental results show that the optimization method can meet the requirements of magnetization and demagnetization of the chuck,and the maximum magnetic attraction force is close to the design value.Finally,the main application of electro-permanent magnet technology in quick die change and forming process was briefly introduced.

关 键 词：电控永磁 磁极单元 充退磁 参数优化 

分 类 号：TG386.2[金属学及工艺—金属压力加工]