华南理工大学学报(自然科学版) ›› 2009, Vol. 37 ›› Issue (9): 93-97.

• 机械工程 • 上一篇    下一篇

三维非规则冲压件的回弹扭转补偿控制

刘强1  阮锋2  薛新2  周驰2   

  1. 1. 中山大学 工学院, 广东 广州 510006; 2. 华南理工大学 机械与汽车工程学院, 广东 广州 510640
  • 收稿日期:2008-10-07 修回日期:2008-11-21 出版日期:2009-09-25 发布日期:2009-09-25
  • 通信作者: 刘强(1981-),男,博士,讲师,主要从事材料成形和计算机辅助技术研究. E-mail:1iu5168198110@126.com
  • 作者简介:刘强(1981-),男,博士,讲师,主要从事材料成形和计算机辅助技术研究.
  • 基金资助:

    国家自然科学资金资助项目(50805050);粤港关键领域重点突破项目(2007A010301010)

Compensation Control of Springback Torsion for 3D Irregular Stamping Parts

Liu Qiang Ruan Feng2  Xue Xin2  Zhou Chi2   

  1. 1. College of Engineering, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China; 2. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2008-10-07 Revised:2008-11-21 Online:2009-09-25 Published:2009-09-25
  • Contact: 刘强(1981-),男,博士,讲师,主要从事材料成形和计算机辅助技术研究. E-mail:1iu5168198110@126.com
  • About author:刘强(1981-),男,博士,讲师,主要从事材料成形和计算机辅助技术研究.
  • Supported by:

    国家自然科学资金资助项目(50805050);粤港关键领域重点突破项目(2007A010301010)

摘要: 针对一类特殊的三维非规则冲压件的成形,提出了一种基于变形传递函数(DTF)的相对扭转补偿控制方法,即在试制产品截面间运用惯性主轴向量的相对扭转角变化评价截面的相互关系,用DTF方法建立数值模拟相对扭转角偏差与实际相对扭转角偏差的传递函数,将此传递函数用于模具型面的设计中.在螺旋叶片板的成形控制中的应用表明,该方法可使叶片板零件整体空间扭转误差控制在5%之内,保证了整体焊接时相邻叶片板相接面的质量,解决了截面间扭转不够导致的不能顺利安装的问题.

关键词: 非规则冲压件, 扭转控制, 回弹, 变形传递函数

Abstract:

A compensation control method of springback torsion based on the deformation transfer function(DTF) is proposed for a special kind of 3D irregular stamping parts.In this method,the relationships among part sections are evaluated according to the relative torsion angle variation of inertial principle-axis vector,and the transfer function between the simulated and the experimental relative torsion angle deviations is deduced based on the DTF method,which is then used to design the die face.The application of the proposed compensation control method to the formation of a spiral blade sheet indicates that the method keeps the integral space torsion error of the blade sheet under 5%, guarantees the quality of contact surface of adjacent blade sheets in the integral welding process, and overcomes the difficulty in the installation due to the insufficient torsion between two sections.

Key words: irregular stamping part, torsion control, springback, deformation transfer function