电磁振动上料物料姿态特征的研究
发布时间:2018-04-14 01:24
本文选题:振动上料 + 姿态概率 ; 参考:《燕山大学》2012年硕士论文
【摘要】:在自动加工和装配系统中,物料在电磁振动料斗中的自动定向上料得到了广泛应用,而电磁振动料斗中定向机构是根据物料的姿态进行设计的,,所以,研究物料在静态和动态条件下的姿态对于电磁振动料斗定向机构的设计具有直接的指导意义。 本文通过研究电磁振动上料时物料的自然姿态概率分布,建立了预测物料自然姿态概率的姿态稳定系数模型,通过理论分析与实验统计分析,得出物料支承面的自然姿态概率与其几何接触面积和重心距之间的关系,并通过与形心立体角和能障模型比较得出该模型具有计算简单快速,可靠性好等特点;通过理论推导和仿真实验研究物料在电磁振动上料过程中姿态的变化,对比了物料姿态处于静态和动态时的不同,分析电磁振动料斗的振幅对物料姿态的影响,得到了振幅对物料姿态的影响规律,对指导电磁振动料斗定向机构的设计有直接的指导意义。
[Abstract]:In the automatic machining and assembly system, the automatic directional feeding of materials in the electromagnetic vibration hopper has been widely used, and the orientation mechanism in the electromagnetic vibration hopper is designed according to the attitude of the material, so,The study of material attitude under static and dynamic conditions is of direct significance for the design of electromagnetic vibration hopper directional mechanism.In this paper, a model of attitude stability coefficient is established to predict the probability of natural attitude of materials by studying the probability distribution of natural attitude of materials when the material is fed with electromagnetic vibration, and the theoretical analysis and experimental statistical analysis are carried out.The relationship between the natural attitude probability of the material bearing surface and the geometric contact area and the center of gravity distance is obtained. Compared with the centroid angle and the energy barrier model, the model has the advantages of simple calculation, good reliability and so on.Through theoretical derivation and simulation experiment, the change of material attitude in the course of electromagnetic vibration feeding is studied, and the influence of the amplitude of electromagnetic vibration hopper on the material attitude is analyzed by comparing the difference of material attitude when the material attitude is static and dynamic.The influence of amplitude on material attitude is obtained, which is of direct significance to the design of directional mechanism of electromagnetic vibration hopper.
【学位授予单位】:燕山大学
【学位级别】:硕士
【学位授予年份】:2012
【分类号】:TH237.1
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