复合材料预制件单面双针缝合装备技术研究

发布时间：2018-05-05 09:28

本文选题：复合材料预制件 + 单面双针缝合头　；参考：《玻璃钢/复合材料》2017年02期

【摘要】：缝合技术能有效改善复合材料层间强度、提高损伤容限,通过缝合连接可以制备整体成型结构件。基于工业缝纫机工作原理,通过研究引线针、钩线针在形成线圈过程中的配合,建立了双针运动行程关系,并设计了凸轮曲柄连杆机构实现双针协同运动,将单面双针缝合头与三轴联动平台结合缝合预制件。探索双针夹角对线圈成型的影响,实验结果显示双针夹角为45°~60°时稳定形成线圈概率最高,达到90%,夹角过大或过小都会使线圈形成概率降低,实验验证了单面双针缝合装备结构设计的合理性,为装备优化提供了理论依据。
[Abstract]:Suture technique can effectively improve the interlaminar strength and damage tolerance of composite materials. Based on the working principle of industrial sewing machine, by studying the cooperation of lead needle and hook needle in the process of forming coil, the travel relation of double needle motion is established, and the cam crank linkage mechanism is designed to realize the cooperative movement of double needle. One-sided double-needle suture head and three-axis linkage platform are combined to stitch the prefabricated parts. The effect of double needle angle on coil forming is explored. The experimental results show that the probability of stable forming coil is the highest when the angle of double needle is 45 掳or 60 掳, and the probability of coil forming will be reduced when the angle is too large or too small, and the probability of forming coils is the highest when the angle of double needle is 45 掳or 60 掳. The experiment verifies the rationality of the structure design of single-side double-needle suture equipment and provides the theoretical basis for equipment optimization.
【作者单位】：南京航空航天大学;
【基金】：江苏高校优势学科建设工程资助项目(PAPD)
【分类号】：TB33

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