固定式矿车端板冲压折边仿真研究  

Simulation Study on the Flanging Deformation of Fixed Mine Car End Plate

作　　者：徐瑞阳 张海[1] 刘伟[1] 吕鲲[1] XU Ruiyang;ZHANG Hai;LIU Wei;LYU Kun(School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]河南理工大学机械与动力工程学院,河南焦作454000

出　　处：《机械工程师》2023年第1期47-50,共4页Mechanical Engineer

摘　　要：以3 t固定式矿车为对象,对端板折边的波纹状变形进行了研究。通过分析,设计了3种在端板圆弧外缘上预开V形口的方案,并进行了冲压回弹仿真分析。为了对端板折边冲压后的波纹状变形进行定量评估,提出了一种测量端板折边上波纹状变形量的方法。对3种预开V形口方案进行的仿真研究表明:端板圆弧外缘上预开V形口数量存在一个临界值。当V形口数量小于该临界值时,折边上会出现明显的波纹状变形;当V形口数量不小于该临界值时,V形口两边闭合良好,且折边上不出现波纹状变形,仅在两个V形口之间形成一个略向外凸的光滑圆弧。端板外缘圆弧段与直线段交点处的V形口位置对折边的波纹状变形有一定的影响。将端板外缘圆弧段与直线段交点处的半V形口向圆弧侧略微偏移,可减小折边的变形量。Taking the 3-ton fixed mine car as the object,the corrugated deformation of the end plate folding is studied.Through analysis,three schemes of pre-opening V-shaped opening on the outer edge of end plate arc designed,and the stamping springback simulation analysis is carried out.In order to quantitatively evaluate the corrugated deformation after end plate folding stamping,a method for measuring the corrugated deformation on end plate folding is proposed.The simulation results of three pre-opened V-shaped port schemes show that there is a critical value for the number of preopened V-shaped ports on the outer edge of the end plate arc.When the number of V-shaped openings is less than the critical value,obvious corrugated deformation will appear on the hem;When the number of V-shaped openings is greater than or equal to the critical value,both sides of the V-shaped opening are closed well,and there is no corrugated deformation on the folded edge,and only a slightly outward convex smooth arc is formed between the two V-shaped openings.The position of the V-shaped opening at the intersection of the circular arc segment and the straight line segment on the outer edge of the end plate has a certain influence on the corrugated deformation of the folded edge.The deformation of the hem can be reduced by slightly offsetting the semi-V-shaped opening at the intersection of the arc segment and the straight segment on the outer edge of the end plate to the arc side.

关 键 词：固定式矿车 端板 冲压折边 仿真 

分 类 号：TG386[金属学及工艺—金属压力加工] TD5[矿业工程—矿山机电]