注塑机双曲肘合模机构振动响应  

Vibration Response of Double-toggle Clamping Unit for Injection Molding Machine

作　　者：杜遥雪[1] 陈明亮[1] 罗家胜[1] 殷小春[2] 张贤宝 

机构地区：[1]五邑大学机电工程学院,广东江门529020 [2]华南理工大学聚合物新型成型装备国家工程研究中心,广东广州510640 [3]震德塑料机械有限公司,广东佛山528300

出　　处：《塑料》2015年第5期47-49,61,共4页Plastics

基　　金：广东省省部产学研结合项目(2013B090600066)

摘　　要：应用机械系统动力学理论及仿真分析软件ADAMS,通过构建注塑机双曲肘合模机构的三维实体模型,把肘杆和拉杆视为柔性体,获得合模机构刚柔耦合多体系统动力学模型和振动分析系统模型;通过对合模机构进行振动响应仿真分析,获得系统的固有频率与阻尼比和幅频响应与功率谱;通过各阶模态参与和动模板在X、Y、Z方向上的位移与加速度以及振动能量分析,获得合模机构最大的共振位移和共振加速度及其模态振型,系统的振动属于弱阻尼状态,第2、7、8阶固有频率对合模机构系统振动影响最大。Through the application of mechanical system dynamic theory and simulation analytical software ADAMS and the construction of three-dimension solid model on double-toggle clamping unit of injection molding machine, clamping unit dynamic model with rigid-flexible coupling multi-body system and vibration analytical system model were obtained, in which toggle and tension bar were taken as flexible bodies. Through the simulation of vibration response on clamping unit, natural frequency and damping ratio as well as amplitude-frequency response and power spectrum were obtained. Through the analysis of every order mode involution and displacement and acceleration of moving die plate along the X, Y and Z direction as well as vibration energy, maximum resonance displacement and acceleration as well as vibrational mode were obtained. The system vibration belonged to weak damping state, and the influence of the second, seventh and eighth natural frequencies on clamping unit system vibration was great.

关 键 词：双曲肘合模机构 振动响应 固有频率 阻尼比 幅频响应 功率谱 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]