20 MN拉伸矫直机拉伸头侧板开孔的分析  

Analysis of opening holes on stretching head side plates for 20 MN stretching and straightening machine

作　　者：胡阳虎[1] 权晓惠[1] 徐生华 李正利[1] 段丽华[1] 段锦涛[1] HU Yang-hu;QUAN Xiao-hui;XU Sheng-hua;LI Zheng-li;DUAN Li-hua;DUAN Jin-tao(China National Heavy Machinery Institute Co.,Ltd.,Xi＇an 710032,China;Southwest Aluminum（Group）Co.,Ltd.,Chongqing 401326,China)

机构地区：[1]中国重型机械研究院股份公司,陕西西安710032 [2]西南铝业(集团)有限责任公司,重庆401326

出　　处：《重型机械》2018年第5期45-50,共6页Heavy Machinery

基　　金：2017年度陕西省重点研发计划专项资金(2017ZDXM-GY-056)资助项目

摘　　要：框体式结构拉伸头在侧面进行开孔时,开孔位置对其整体强度有很大的影响。为此,建立了拉伸头钳口在不同工作位置下,不同开孔位置的有限元模型,对比分析了最大等效应力变化曲线、最大变形曲线和开孔周边最大等效应力曲线。结果表明,拉伸头最佳开孔位置是孔边到拉伸头端部660 mm处。该研究对框体式拉伸头侧面开孔的设计有一定的参考意义。Opening position of frame stretching head has a great influence on its overall strength when opening on the side. This paper established a FEM model under different working and opening positions, and compared distribution of the maximum equivalent stress around the opening hole and the whole stretching head jaw, it also focus on how the maximum deformation waves. The results show that the perfect opening position edge is 660 mm away from the end. This study has a certain reference significance for the frame stretching head opening design.

关 键 词：拉伸矫直机 拉伸头 钳口 开孔 

分 类 号：TG333[金属学及工艺—金属压力加工]