实现预期轨迹的自动落纱机拔管机构参数优化设计  

Parameter Optimization Design of the Drawing Mechanism of Automatic Doffer with Expected Trajectory

作　　者：姜媛媛 张继忠[1] 李永强 JIANG Yuanyuan;ZHANG Jizhong;LI Yongqiang(School of Electromechanic Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学机电工程学院,山东青岛266071

出　　处：《青岛大学学报（工程技术版）》2020年第3期93-98,共6页Journal of Qingdao University(Engineering & Technology Edition)

摘　　要：针对平面连杆机构轨迹再现问题,本文以自主设计的自动落纱机拔管机构上料夹的运动轨迹为例,对实现预期轨迹的自动落纱机拔管机构参数进行优化设计。参考人手拔管过程中纱管所处的多个位置,对纱管夹紧装置中料夹的运动轨迹进行路径规划。同时,以机构实际轨迹与预期轨迹距离之差的平方和为目标函数,调用Matlab中的有约束最小化函数fmincon,求解得到双摇杆机构各参数的最优解,并根据得到的最优机构参数,在Adams中建立拔管机构仿真模型进行轨迹仿真。仿真结果表明,经过优化的机构,其实现的轨迹与预期轨迹基本一致,即拔管时,料夹的轨迹与人工拔管的轨迹基本相同,满足拔管机构工作过程中不得与落纱机其他装置干涉的要求,满足预期设计要求。该研究在我国纺织领域具有广阔的应用前景。Aiming at the track reproduction problem of planar connecting rod mechanism,this paper takes the motion track of feeding clip of automatic doffing machine drawing mechanism designed by ourselves as an example to optimize the parameters of automatic doffing machine drawing mechanism to realize the expected track.Referring to the position of the yarn tube in the process of manual tube drawing,the path planning of the material clip in the tube clamping device is carried out.At the same time,taking the square sum of the distance between the actual track and the expected track of the mechanism as the objective function,the constrained minimization function fmincon in Matlab is called to obtain the optimal solution of each parameter of the dual rocker mechanism,and according to the obtained optimal mechanism parameters,a simulation model of the tube drawing mechanism is established in Adams for trajectory simulation.The simulation results show that the trajectory of the optimized mechanism is basically consistent with the expected trajectory,that is,the trajectory of the material clip is basically the same as that of the manual tube drawing,which satisfies the requirement that the mechanism should not interfere with other devices of the doffer during the working process and meet the expected design requirements.This research has a broad application prospect in China's textile field.

关 键 词：自动落纱机拔管机构 双摇杆机构 连杆轨迹 机构参数优化 

分 类 号：TS103.7[轻工技术与工程—纺织工程]