易损棒料高速柔和交接关键技术参数分析与优化  

Analysis and optimization of key technical parameters of high speed smooth transfer of vulnerable bar

作　　者：田海豹 刘子建[1] 余治民[1] 吕程[1] 

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室,湖南长沙410082

出　　处：《中南大学学报（自然科学版）》2014年第4期1077-1084,共8页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51175161);国家重点基础研究发展计划("973"计划)项目(2010CB328002)

摘　　要：描述批量生产同种规格小尺寸圆柱条形产品的典型工艺,提出易损棒料高速轴向-径向柔和交接工艺需求。通过对比现有交接方法,分析高速柔和交接运动特征和关键技术,提出一种新型偏置鼓轮交接原理和机构设计方案。基于空间几何变换方法及旋转矩阵方法构建了偏置鼓轮交接机构的运动学和动力学数学模型,进而提出多目标参数优化问题,并结合高速卷接机实例采用MOGA方法计算新型交接机构关键参数的全局Pareto最优解。通过与蜘蛛手机构的对比分析表明偏置鼓轮交接方法具有更好的柔和特性和结构紧凑性,结构上也比蜘蛛手简单很多,是一种具有应用前景的新型交接机构。The typical process of mass production of small size cylindrical bar of the same specifications was described. The process requirements for axial-to-radial direction smooth transfer of high-speed vulnerable bars were put forward, and the motion feature and key technology were compared and analyzed, and then a new transfer principle and mechanism design program based on offset drum were proposed. The kinematics and dynamics mathematical model and multi-objective parameter optimization model of offset drum transfer mechanism were established based on space geometric transformation method and displacement matrix method. With the example of cigarette making machine, the global Pareto solutions of key parameters of the new transfer mechanism were calculated by MOGA. Compared with spider hands, the offset drum transfer mechanism has greater application prospects for its method is much smoother and the structure is more compact and simpler.

关 键 词：易损棒料 柔和交接 几何变换 多目标优化 

分 类 号：TH122[机械工程—机械设计及理论]