多点成形柔性模具磁场矩阵控制优化研究-机械工程专业论文.docxVIP

上海交通大学工程硕士学位论文摘要 上海交通大学工程硕士学位论文 摘要 万方数据 万方数据 多点成形柔性模具磁场矩阵控制优化研究 摘 要 随着用户对电机的个性化要求不断增加，电机的规格种类越来越多， 配套的工装模具数量也成倍增长，电机制造面临着严峻的成本挑战，因 此亟需提高模具的柔性化程度，采用一模多用的方式降低模具成本。通 过对几种主流柔性模具结构的优劣势比较，选用了多点成形作为研究方 向，但是传统的多点成形柔性模具存在着结构复杂和调形时间长的问题， 影响其推广使用。 本文针对这两个核心问题，在调研国内外研究现状的基础上，通过 离散型面成形机理的研究，验证了电磁调形的可行性，并通过理论计算 和有限元分析，分别模拟了磁路集缩系统角点、边中点和正中间三个典 型位置的磁场大小分布，精确控制磁场矩阵的阈值范围，实现了磁场分 层扫描控制。通过对柔性模具各个模块的重新设计，简化了模具的机械 机构，以机械结构和电子系统的分离提高系统的稳定性和使用寿命，并 先后制作了两代实验样机进行测试，经过试验、分析和优化，完成了多 点成形柔性模具的磁场矩阵控制快速调形，缩短了柔性模具的调形时间。 同时，论文工作也提高了新结构的柔性模具调形精度，达到了预期的设 计要求，使柔性模具更接近实际工程应用。 关键词：柔性模具，多点成形，电磁调形，磁场矩阵 I 上海交通大学工程硕士学位论文ABS 上海交通大学工程硕士学位论文 ABSTRACT STUDY ON OPTIMAL CONTROL OF MAGNETIC FIELD MATRIX FOR MULTI-POINT FORMING FLEXIBLE DIE ABSTRACT With the development of individual requirements of the motor, specifications of the motor and auxiliary fixture quantities are multiplied. Motor manufacturing is facing serious challenges of cost. Hence, it is necessary to increase the flexibility of the die to lower the cost. By analyzing the advantages and disadvantages of several main flexible die structures, multi-point forming is selected. However, it is found that many traditional forming flexible dies have complicated structures and long shape adjusting time, and lead to few application. This thesis in view of these two core issues, base on a few investigations, through the research of the mechanism of discrete surface forming, verify the feasibility of electromagnetic shape adjustment, and through the theoretical calculation and accurate design by finite element analysis method, the magnetic field distribution are simulated size shrinkage of three typical location system corner, midpoint and just in the middle of the magnetic circuit set threshold range accurate control magnetic matrix, realized the magnetic hierarchical scanning control. Through the redesign of the flexible mold of each module, the mechanism of the die is simplified, to separate the mechanical structures and the electronic systems, and improve th