动车组驾驶室后端弯梁弯曲成型工艺研究  

Research on Bending Forming Process of Rear End Bent Beam of High Speed Train Driver's Cabin

作　　者：魏代全 王圣潇 寇晓东 孙彬 任婷 Wei Dai-quan;Wang Sheng-xiao;Kou Xiao-dong;Sun Bin;Ren Ting(Qingdao Taihong Rail Equipment Co.,Ltd.,Shandong Qingdao 266111;Dezhou Vocational College of Science and Technology Qingdao Campus,Shandong Qingdao 266111)

机构地区：[1]青岛泰泓轨道装备有限公司,山东青岛266111 [2]德州科技职业学院青岛校区,山东青岛266111

出　　处：《内燃机与配件》2024年第18期42-44,共3页Internal Combustion Engine & Parts

摘　　要：对动车组驾驶室后端弯梁的成型工艺进行了研究,其弯曲成型难点在于中空型材截面尺寸大、整体外形尺寸大、轮廓复杂、半径曲率大、成型精度要求高,针对成型难点分析了后端弯梁的成型步骤、成型截面畸变趋势、成型后的回弹量,确定了先对后端弯梁顶部进行拉弯成型后对两侧立柱压弯成型的工艺方案,研制了工艺装备(一套拉弯成型模具、一套压弯成型模具、一套轮廓度检验样板),确定了设备的工艺参数(拉弯机牵引力、压力机压力),保证了后端弯梁弯曲成型后满足技术要求,为此类铝型材弯曲成型提供了工艺参照。A study was conducted on the forming process of the main bending beam of the high-speed train driver's cab.The difficulties in bending and forming lie in the large cross-sectional size of the hollow profile,the large overall external size,the complex contour,the large radius curvature,and the high requirements for forming accuracy.In response to the forming difficulties,the forming steps of the main bending beam,the distortion trend of the forming section,and the rebound amount after forming were analyzed.A process plan was determined to first perform tensile bending on the top of the main bending beam and then press bending on both sides of the columns.Process equipment(one set of tensile bending forming mold,one set of bending forming mold,and one set of contour inspection template)was developed,and the process parameters of the equipment(traction force of the tensile bending machine and pressure of the press)were determined to ensure that the main bending beam meets the technical requirements after bending and forming.The requirement provides a process reference for the bending and forming of such aluminum profiles.

关 键 词：后端弯梁 弯曲成型 成型模具 工艺参数 

分 类 号：U260.2[机械工程—车辆工程]