摘要
轿车柱类制件外形复杂、长度尺寸大以及成形回弹量大,导致其冲模开发难度加大。以轿车D柱外板加强板为对象,首先通过工艺分析初步确定了制件的加工工序;其次运用仿真技术验证了简化工序,确定了制件的成形工艺方案;再次据此方案设计出1组包含4套独立分模组成的轿车D柱外板加强板多步加工冲模;最后进行了投产前的实冲试验。结果表明:依据“拉延→切边→整形”简化工序,获得的仿真结果合格;依据“拉延→切边、切边→换位→切边、冲孔”工艺方案设计的多步加工冲模,冲制出了外观质量好,孔位和形面精度合格的零件。得出结论:所提出的设计方法合理可行,所设计的冲模对轿车柱类制件的加工适应性良好。
The shape of car pillar parts is complex, and the length and the shaping resilience are great, which makes the development of stamping die more difficult. Firstly, the processing procedure of the parts is preliminarily determined through process analysis;secondly, the simplified process is verified by simulation technology, and the shaping process scheme is determined;thirdly, according to this scheme, a set of multi-step processing die for the reinforcing plate of car D-pillar outer plate composed of 4 sets of independent parting dies is designed;finally, the real impact test before production is carried out. The results show that the simulation results are qualified according to the simplified process of "drawing→trimming→shaping";the multi-step processing die designed according to the process scheme of "drawing→trimming, trimming→transposition→trimming, punching" has produced parts with good appearance quality and qualified hole position and surface accuracy. It is concluded that the proposed design method is reasonable and feasible, and the designed die has good adaptability to the processing of car column parts.
作者
胡慧
任龙军
HU Hui;REN Longjun(School of Engineering,Hefei University of Economics,Hefei,Anhui 230011,China;Ma′anshan Engi-neering Technology Research Center of Advanced Design for Automotive Stamping Dies,Ma′anshan,Anhui 243031,China)
出处
《西昌学院学报（自然科学版）》
2022年第4期65-70,共6页
Journal of Xichang University(Natural Science Edition)
基金
安徽省高校自然科学研究重点项目(KJ2020A1173)
高校优秀青年骨干人才国内外访学研修项目(gxgnfx2021219)。
关键词
加强板
冲压工序
仿真技术
多步加工冲模
实冲试验
reinforcing plate
stamping process
simulation technology
multi-step processing die
real impact test
