锻压技术

汽车吸能盒零件多工位级进模设计

英文标题：Design on multi-station progressive die for automotive energy absorbing box parts

分类号：U468.2；TG385.2

出版年,卷(期):页码：2024,49(1):196-201

摘要：

针对厚度大、强度高、成形困难且尺寸精度要求高的汽车吸能盒零件，通过工艺分析确定了直排中间载体的排样设计的14工位级进模冲压方案，材料利用率达75.14%。采用有限元模拟方法分析了产品成形过程中的回弹变形量，通过在侧整形工位施加补偿的方法解决了回弹超差问题；采用先冲孔后成形的方式解决了位于圆角上的溃缩孔无法直接冲裁的问题；采用挂台加背托板的形式固定凸模，解决了冲裁轮廓不封闭引起的冲裁力不平衡的问题；设计了楔形回退机构，解决了零件存在冲压负角无法直接成形的问题。生产试制结果表明，该级进模设计合理可靠，产品质量达到要求，生产效率高。

For the automotive energy absorbing box parts with large thickness, high strength, difficult to form and high dimensional accuracy requirement, the 14-station progressive die stamping scheme for straight-line intermediate carrier layout design was determined through process analysis, and the material utilization rate reached 75.14%. Then, the amount of springback deformation during the product forming process was analyzed by finite element simulation method, and the problem of springback out-of-tolerance was solved by applying compensation at the side shaping station. Furthermore, the method of punching first and then forming was used to solve the problem that the collapsed hole located on the fillet could not be directly blanked, and the punch was fixed in the form of hanging table and a back support plate to solve the problem of unbalanced blanking force caused by unclosed blanking profile. Finally, the wedge-shaped retraction mechanism was designed to solve the problem that the stamping negative angles of parts could not be directly formed. The trial production results show that the progressive die design is reasonable and reliable, the product quality meets the requirements, and the production efficiency is high.

基金项目：

作者简介：苏达权(1998-)，男，硕士研究生 E-mail：1045301592@qq.com 通信作者：黄珍媛(1975-)，女，博士，副教授 E-mail：zhenyuan@scut.edu.cn

参考文献：

[1] 曲明. 汽车吸能盒结构低速正面撞击的数值仿真研究[D]. 哈尔滨：哈尔滨工程大学，2008.

Qu M. Simulation and Research of the Structure of Crash Box in the Low Speed Front Collision[D]. Harbin: Harbin Engineering University，2008.

[2] 周运，梁伟，田镇明，等. 考虑损伤下的汽车吸能盒轴向压缩特性研究 [J]. 汽车工程学报，2023，13(1): 126-133.

Zhou Y，Liang W，Tian Z M，et al. Research on axial compression characteristics of automobile energy absorbing box under damage conditions[J]. Chinese Journal of Automotive Engineering，2023，13(1): 126-133.

[3] 罗培锋，杨万庆，陈东，等. 高强度钢成形技术及车身轻量化应用[J].汽车实用技术,2020,45(16):170-175.

Luo P F，Yang W Q，Chen D，et al. Forming technology of high strength steel and application of body lightweight[J]. Automobile Applied Technology，2020,45(16):170-175.

[4] 张燕瑰，邓劲松，魏宪波，等. 高强度钢性能及其在车身中的应用[J].精密成形工程,2013,5(4):64-68.

Zhang Y G，Deng J S，Wei X B，et al. A study on performance of high strength steel and application in bodywork[J]. Journal of Netshape Forming Engineering，2013,5(4):64-68.

[5] 李军，刘鑫，曹广祥，等. 汽车车身高强度钢的应用发展及挑战 [J]. 汽车工艺与材料，2021，(8): 1-6.

Li J，Liu X，Cao G X，et al. Application development and challenge on high strength steel for automobile body[J]. Automobile Technology & Material，2021，(8): 1-6.

[6] 苏浚翔. 基于几何特性的汽车高强钢抗撞吸能结构件成形性研究[D].长沙：湖南大学,2022.

Su J X. Research on Formability of Automotive High-strength Steel Crash-resistant and Energy-absorbing Structural Parts Based on Geometric Characteristics[D]. Changsha: Hunan University，2022.

[7] 陈炎嗣. 多工位级进模的发展与应用 [J]. 金属加工：冷加工，2013，677(2): 14-17.

Chen Y S. Development and application of multi-station progressive die[J]. Metal Working: Metal Cutting，2013，677(2): 14-17.

[8] 蔡恒. 基于NX的汽车结构件级进模工艺设计系统的研究[D].武汉：华中科技大学,2019.

Cai H. Research on Process Design System of Auto Parts Progressive Die Based on NX[D]. Wuhan: Huazhong University of Science & Technology，2019.

[9] 王二冬. 多工位级进冲模模具结构分析及优化关键技术研究[D].广州：华南理工大学,2017.

Wang E D. Research on the Key Technologies of Structure Analysis and Optimization of Multi-position Progressive Die[D]. Guangzhou: South China University of Technology，2017.

[10]贾俐俐，柯旭贵，高锦张，等. 冲压工艺与模具设计[M]. 2版. 北京: 人民邮电出版社，2016.

Jia L L，Ke X G，Gao J Z，et al. Stamping Process and Die Design[M]. Second Edtion. Beijing: People′s Posts and Telecommunications Press，2016.

[11]王巍，李珍，张贺，等. 航空座椅连接件多工位级进模设计[J]. 锻压技术，2022，47(10): 223-228.

Wang W，Li Z，Zhang H，et al. Design on multi-station progressive die for aero seat connector[J]. Forging & Stamping Technology，2022，47(10): 223-228.

[12]张留伟，沈仙兵，洪维，等. 基于CAD/CAE的前翼板支架拉延模设计[J].塑性工程学报,2023,30(3):82-90.

Zhang L W，Shen X B，Hong W，et al. Draw die design of front wing support based on CAD/CAE[J]. Journal of Plasticity Engineering，2023,30(3):82-90.

[13]刘龙. 汽车覆盖件冲压成形回弹补偿方法研究 [D]. 长沙：湖南大学，2018.

Liu L. Research on the Springback Compensation Method for Automobile Panel Stamping[D]. Changsha: Hunan University，2018.

[14]周晶，李晓仁，王琳，等. 高强度钢冲压件的回弹及预防措施[J]. 金属加工：热加工，2017，(7): 39-40.

Zhou J，Li X R，Wang L，et al. Springback and preventive measures for stamped parts of high-strength steel[J]. MW Metel Forming，2017，(7): 39-40.

[15]王成勇，王思艳，张心怡，等. 级进模内球面偏心冲孔凸模刃口结构设计与侧向力控制[J].塑性工程学报,2016,23(2):6-10.

Wang C Y，Wang S Y，Zhang X Y，et al. Punch structure design and lateral force control for eccentric holes blanking on inner spherical surface in progressive die process[J]. Journal of Plasticity Engineering，2016,23(2):6-10.

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