摆杆式锻造操作机悬挂机构的力学特性研究  

Study on Mechanical Properties of Suspension Mechanism in Oscillating-bar Forging Manipulator

作　　者：张苗苗 刘艳妍[1] 杨晋[1] 杨晓波[1] 张起樑[1] ZHANG Miaomiao;LIU Yanyan;YANG Jin;YANG Xiaobo;ZHANG Qiliang(School of Mechanical Engineering,Lanzhou Jiaotong University,Lanzhou 730070)

机构地区：[1]兰州交通大学机电工程学院,兰州730070

出　　处：《机械工程学报》2025年第1期232-242,共11页Journal of Mechanical Engineering

基　　金：甘肃省科技专员专项(22CX8GA063);甘肃省科技计划(23JRRA859)资助项目。

摘　　要：锻造操作机具有大惯量,强冲击的特点,因此对操作机各构件的受力特点的研究是十分有必要的。为研究缓冲缸与平升缸之间的受力关系问题,对悬挂机构进行了运动分析以求解各构件的位置,建立了钳杆位移和两缸位移的映射关系;采用传统受力方法对悬挂机构各杆件进行分析,建立了缓冲缸与平升缸的力学模型;利用MATLAB分析了各参数对两缸受力变化的作用规律;在上述研究的基础上,选择粒子群算法对关键参数进行了优化得到满足条件的非劣解集,并采用逼近理想解排序法从非劣解集中寻求最优解。优化结果表明合理选择参数可以有效减小平升缸受力,改变缓冲缸对平升缸的受力影响,该结论为进一步优化缓冲缸的缓冲性能提供一种可行思路,对提高操作机力承载性能、降低能耗具有重要意义。The forging manipulator has the characteristics of large inertia and strong impact,so it is necessary to study the force characteristics of each component of the manipulator.In order to study the force relationship between the buffer cylinder and the horizontal cylinder,the motion analysis of the suspension mechanism was carried out to solve the position of each rod,and the mapping relationship between the displacement of the clamp rod and the displacement of the two cylinders is established.The traditional force analysis method is used to analyze rods of the suspension system,and the force model of the buffer cylinder and the horizontal cylinder is established.The effect of each parameter on the force change of the two cylinders are analyzed by MATLAB.On the basis of the above research,the Particle Swarm Optimization is selected to optimize the key parameters to obtain the set of non-inferior solution that meets the conditions,and the optimal solution are sought from the set by the Technique for Order Preference by Similarity to Ideal Solution.The optimization results show that the reasonable selection of parameters can effectively reduce the force of the lifting cylinder and change the influence of the buffer cylinder on the force of the lifting cylinder.The result provides a feasible idea for further optimizing the buffer performance of the buffer cylinder,which is of great significance for improving the force bearing performance of the manipulator and reducing energy consumption.

关 键 词：锻造操作机 平升缸 缓冲缸 受力特性 参数优化 

分 类 号：TG315[金属学及工艺—金属压力加工]