八路纤维丝增材铺放头的设计与研究

THE DESIGN AND RESEARCH OF THE EIGHT-WAY FIBER REINFORCEMENT

通过对铺放设备结构特点和工作原理的分析,结合国内现有铺放设备存在的问题以及不足,利用三维软件Creo设计一种将铺放与切割相结合的复合加工装置。该装置在实现基本8丝束铺放功能的同时增加切割机构,使铺放与切割协调工作,实现计算机规定的三维实体成型。本研究分别采用叠加方式设计了剪切模块、夹紧重送一体模块;采用压靴形式设计了压实模块,实现了多根丝束单独控制,适用于复杂工件的铺放。采用超声波切割方式,对铺放后碳纤维铺层的边界进行修整切割加工。通过ADAMS对建立的模型进行仿真分析,验证了装置运动的平稳性。各个部件采用模块化设计,具有一定的扩展性。

Based on the analysis of the structural features and working principle of the laying equipment,combined with the problems and shortcomings of the existing laying equipment in China,this article designs a composite processing device that combines placement and cutting by PTC Creo Parametric. The device not only enables basic 8 tow placement but also adds a cutting mechanism,it allows the laying and cutting to work in harmony and realizes the computer-defined three-dimensional solid forming. This paper adopts a stacking method to design the cutting module and the module of clamping and re-feeding. It uses press shoes to design a compaction module which can realize individual control of multiple tows and is suitable for laying complex workpieces. It adopts the ultrasonic cutting method to trim and cut the boundary of the carbon fiber ply after laying. This paper also simulates the model established by ADAMS and verifies the stability of the device movement. The various components in the device are modularly designed and have certain expansibility.