摘要
为解决热压-注塑一体化工艺中因模具上下模卡死而导致的产品缺陷问题,深入分析了上下模卡死的根本原因——模具设计中上下模的配合间隙设置不当。为此,创新性地设计了一种优化型汽车饰件热压-注塑一体化模具。采用阵列式第1沉头孔与气缸驱动端螺纹连接,确保了连接件与驱动部件的牢固结合;同时,引入第2沉头孔设计,强化了插板与连接件之间的连接强度,有效防止了受力时的松动与转动,进一步提升了模具的整体性能与可靠性。结果表明,该模具通过在下模底部精密布置与气缸驱动件精确匹配的凹槽,实现了驱动件的精准定位与稳固装配,显著减少了模具安装过程中的干涉风险,提高了安装效率与模具运行的稳定性。不仅显著提升了模具的实用价值与生产效能,还为汽车饰件制造领域提供了更为高效、可靠的模具解决方案。
In order to solve the problem of product defects caused by the jamming of upper and lower dies in the hot pressing-injection molding integrated process,the root cause of the jamming of upper and lower dies was deeply analyzed,namely the improper setting of the clearance between upper and lower dies in the die design.Thus,an optimized hot pressing-injection molding integrated die of automobile parts was innovatively designed,and the firm combination of connector and drive component was ensured by using the array-type first countersunk hole and threaded connection with the cylinder drive end.At the same time,the introduction of the second countersunk hole design strengthened the connection strength between insert plate and connector,effectively preventing loosening and rotation when subjec-ted to force,further improving the overall performance and reliability of the die.The results show that the die achieves accurate positioning and stable assembly of the drive parts by precisely arranging grooves on the bottom of lower die that precisely match the cylinder drive parts,significantly reducing the risk of interference during die installation and improving installation efficiency and stability of die opera-tion,which not only significantly enhances the practical value of die and production efficiency,but also provides a more efficient and relia-ble die solution scheme for the manufacturing field of automobile parts.
作者
吴军军
刘赛科
高业汉
黄志高
Wu Junjun;Liu Saike;Gao Yehan;Huang Zhigao(School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430070,China;Ningbo Fangzheng Automotive Mold Co.,Ltd.,Ningbo 315600,China)
出处
《锻压技术》
北大核心
2025年第6期168-172,共5页
Forging & Stamping Technology
基金
科技创新2025重大专项(宁波市重大科技任务攻关项目)(2022Z010)。
关键词
汽车饰件
热压-注塑一体化工艺
模具设计
配合间隙
阵列状分布
automobile parts
hot pressing-injection molding integrated process
die design
assembly clearance
array-type distribu-tion
