单边双针双线缝合头设计与分析

Design and analysis of the single-sided double-needle double-thread sewing head

为实现对复合材料预制体的单边缝合,提高生产效率和产品质量一致性,基于单边双针双线缝合工艺,设计一种单边双针双线缝合头。该缝合头能够在复合材料预制体的一侧实现变角度缝合,增大缝合预制体厚度,提高预制体的抗切应力;它采用双电机驱动,具有摆动插刺机构以及同步传动机构等相关结构设计。在Pro/E中对缝合头进行总体设计与装配,并在Workbench中对缝合针进行强度校核。最后,对单边双针双线缝合头进行装配。

To achieve single-sided stitching on composite material preforms,improve production efficiency,and ensure consistent product quality,a single-sided double-needle double-thread sewing head is designed based on the single-sided double-needle double-thread stitching process.Firstly,it can achieve variable-angle stitching on one side of the composite material preform,increasing the thickness of the stitched preform and enhancing its shear stress resistance.Secondly,the sewing head adopts a dual-motor drive and incorporates related structural designs such as the swinging stabbing mechanism and synchronous transmission mechanism.The overall design and assembly of the sewing head are carried out in Pro/E,and the strength verification of the suture needle is performed using Workbench software.Finally,assemble the single-sided double-needle double-thread sewing head.