基于特征的压铸模浇道变参数设计系统的研究

发布时间：2018-05-19 12:13

本文选题：压铸模具 + 浇注系统　；参考：《合肥工业大学》2017年硕士论文

【摘要】：随着社会的快速发展,压铸模具也迅速发展起来,在日益激烈的市场竞争中,用户对压铸工件的要求越来越高。浇注系统作为金属液流入工件的渠道,其设计的好坏将直接影响压铸工件的质量。为了适应市场发展需求,快速铸造符合要求的高质量铸件,企业必须针对用户需求个性化定制压铸模浇注系统。针对在压铸模浇道的建模中,遇到的几何特征重复生成的繁琐性,操作过程的复杂性和设计参数的离散性等问题,本文提出了一种以变参数为主导的浇道建模方法。该方法将参数设计和特征设计两部分结合起来研究,并基于UG开发了一套完整的压铸模浇道变参数设计系统,具体研究内容如下:(1)针对参数设计的复杂性和离散性等问题,在参数设计要求的基础上,深入研究了压铸模浇注参数之间的关系,并结合实际的需求,提出了基于特征的参数统一化设计方法,为后续的特征设计奠定了基础。(2)根据压铸模浇注系统的结构原理,以浇道结构功能为基础,对浇注系统模块功能和单元封装进行了研究。通过分析UG特征操作功能,确定了浇注系统中浇口和流道的创建方法,并结合UG开发接口对每个模块进行参数化特征设计,以实现快速设计浇注系统。(3)为提高系统的实用价值,解决特征修改的复杂性,本文将参数的变动和特征的变动结合起来,实现了浇道特征的变参数设计和用户对浇道特征的特定要求。
[Abstract]:With the rapid development of the society, the die casting die has also developed rapidly. In the increasingly fierce market competition, the demand for die casting parts is becoming higher and higher. As a channel for molten metal to flow into workpiece, the design of gating system will directly affect the quality of die-casting workpiece. In order to meet the needs of market development and to meet the requirements of high quality castings, enterprises must customize the pouring system of die-casting die according to the needs of customers. In order to solve the problems of repeated generation of geometric characteristics, complexity of operation process and discreteness of design parameters in the modeling of die casting die sprue, this paper presents a new method of gate modeling with variable parameters as the leading factor. This method combines parameter design and feature design, and develops a complete design system for variable parameters of die casting die gating based on UG. The specific research contents are as follows: (1) aiming at the complexity and discreteness of parameter design, etc. Based on the requirements of parameter design, the relationship between pouring parameters of die-casting die is studied in depth, and a feature-based unified design method of parameters is put forward according to the actual requirements. Based on the structure principle of the gating system and the structure function of the gate, the module function and the unit encapsulation of the gating system are studied. By analyzing the function of UG feature operation, the method of creating gate and runner in the gating system is determined, and the parameterized feature design of each module is carried out in combination with UG development interface, so as to realize the fast design of gating system. 3) to improve the practical value of the system. In order to solve the complexity of feature modification, this paper combines the change of parameters with the change of feature, and realizes the variable parameter design of sprue feature and the special requirement of the user to the sprue feature.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG241

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