摘要
针对LED(Light Emitting Diode)分拣机定位测试装置工作中存在的定位精度偏低的问题,将该机构3个输出方向上的复杂问题转化为等效的多自由度质量-弹簧-阻尼模型,研究了其运动学、动力学方程。基于动力学仿真软件ADAMS和SolidWorks建立了定位测试装置的虚拟样机参数化实体模型,并进行样机的定性分析和定量分析,验证了所建模型的正确性。通过参数化虚拟样机分析,从复合凸轮转速、系统刚度、预紧力与机构运动输出特性的关系,确定了影响定位测试装置工作定位精度的因素及大小。
Aiming at the problem that the positioning precision of the positioning-testing device in LED sorting machine is much lower,the complicated problems in three output directions of the mechanism were converted onto the equivalent multi-degree of freedom mass-spring-damping model,and both it＇s Kinematics and dynamic equations were studied.The parameterized solid model of virtual prototype for the mechanism was established based on ADAMS and solidworks dynamic simulation software,the qualitative and quantitative analysis of the virtual prototype were carried out,and the correctness of the established model was verified.Based on theanalysis of the parameterized virtual prototype,the factor and its degree that has influence on the positioning-testing device was determined from relationship between compound cam speed,system stiffness as well as the positioning-testing and mechanism dynamic out-put characteristics.
出处
《机械设计》
CSCD
北大核心
2010年第11期56-61,共6页
Journal of Machine Design
