砂型铸造中铸型装配质量控制方法研究

发布时间：2017-12-31 03:12

本文关键词：砂型铸造中铸型装配质量控制方法研究　出处：《沈阳航空航天大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着制造业市场的扩张各企业间的竞争也日趋激烈,铸造业日益成为制造业的重要课题。铸件内在使用性能与外在尺寸偏差直标志铸造业的生产水平。本文针对铸造中铸型装配质量控制的技术难点出发,从前期设计阶段铸型装配质量预测和基于拓扑理论的铸型检测点优化设计与装配阶段面向检测点分布的检具设计两个阶段进行研究。本论文主要完成研究内容如下:(1)在设计阶段铸型装配质量预测方面,本文从装配质量形成机理出发,基于模型驱动研究理念,探讨铸型装配过程中偏差流流动与耦合机制。基于状态空间模型,处理上游工序误差累积数据,对装配过程铸型装配质量实时信息做出及时预测与相应调整,实现装配误差累积控制和装配质量预测,为提高铸型装配质量稳定性提供理论依据与技术支持。(2)在铸型检测点优化方面,提出了适合铸型装配质量测量的检测点优化方法。首先基于九交矩阵对铸型中砂芯位置拓扑描述,确定检具拓扑检测功能设计;其次建立铸型装配质量与检测点优化分布关系,确定检测点优化分布模型,为检具检测机构设计提供理论指导。(3)为了提高铸型装配质量稳定性,减小铸型装配劳动强度,改善传统检具设计,提出检具群概念,确定检具群设计理念及其设计流程,为检具设计提供规范指导(4)最后通过成对数据检验,把原生产方式下铸件壁厚尺寸数据与采用铸型装配质量优化方法的铸件壁厚尺寸进行处理,验证经优化方法处理后铸件尺寸公差数据的优良性,验证了铸型装配质量控制方法的有效性。综上所述,本文面向铸型装配质量,提出不同阶段铸型装配质量控制方法,使铸型装配系统化、集成化体系化,改善铸型装配质量的检测方式,为实现铸造工艺实现现代化生产奠定了技术基础。
[Abstract]:The manufacturing industry with the expansion of the market competition between enterprises is becoming increasingly fierce, an important subject in the casting industry is increasingly becoming the manufacturing industry. The use of internal and external performance of casting dimension deviation in foundry industry production level straight sign. In this paper, aiming at the technical difficulties in quality control of casting mold assembly of mold assembly quality prediction from the early design stage and based on Optimization of mold design and assembly phase detection oriented distribution fixture design in two stages of testing topological theory. This thesis completed the main research contents are as follows: (1) in terms of assembly quality at the design stage of casting from the assembly quality prediction, the formation mechanism of model driven research based on the concept of flow and coupling the mechanism of deviation flow mold assembly process. Based on the state space model, with the upstream process error accumulation data, assembly process of mold assembly quality. When the information to make timely prediction and corresponding adjustment, to achieve cumulative assembly error control and assembly quality prediction, in order to improve the stability of mold assembly quality to provide theoretical basis and technical support. (2) in the mold detection point optimization, put forward for the mold assembly quality measurement test point optimization method. Based on the nine intersection matrix to describe the mold in the core position of topology, determine the design of topology detection function detection; secondly establish detection and optimization of the relationship between the distribution of mold assembly quality, determined optimal distribution model for gauge inspection agencies to provide theoretical guidance for the design. (3) in order to improve the stability of mold assembly quality, reduce the labor intensity of the mold assembly, to improve the traditional fixture design check out, put forward the concept of clustering, determine the gauge group design idea and design process for gage design provides the Standard Guide (4) through the logarithm according to the original production test. With the thickness of the casting wall optimization method of mold assembly quality casting wall thickness data processing mode, excellent verified by the optimization of processing method after casting dimension tolerance data, verify the effectiveness of the quality control method of mold assembly. In summary, the meeting put forward different stages of mold assembly quality, mold assembly quality control method the mold assembly, system integration, system, ways to improve the quality of detection of mold assembly, for casting process has laid the technical foundation of modernization production.

【学位授予单位】：沈阳航空航天大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TG24

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