长管束直线度与平行度测量方法研究

发布时间：2018-04-29 05:32

本文选题：直线度误差 + 平行度误差　；参考：《西安工业大学》2017年硕士论文

【摘要】：在几何测量领域里,提升高精度空间的直线度测量的准确度,同时降低测量误差,具有重要的工程应用价值。在国内机械加工企业内,提升长管的直线度测量精度,不仅可以提高装备发射精度,也直接关系到装备的命中精度。基于此,在本课题研究之中,选择测量长管束的直线度与平行度为主要的研究对象,从软件、硬件设计方面,优化完成整个测量系统的设计工作,以确保可以满足测量精确性与经济性的需求,使设计的系统可以得到应用推广。本课题研究,针对长管束直线度与平行度的误差测量方法、评价方法进行分析研究,并联合对当前国内外的多种方法进行比较,采用了节距法、量规法和光轴法相结合的方法,设计同时测量直线度与平行度的方案。同时对直线度误差与平行度误差的评价方法进行简单比较,采用了最小二乘法的直线度误差评价方法,在直线度测量的基础上对长管束平行度进行了测量,建立了空间坐标系,利用空间中的两个夹角来评价其平行度。并且采用MATLAB软件将直线度误差与平行度误差的评价以图像的形式展现出来。实验结果表明,优化设计基于长管束直线度与平行度的误差测量系统,满足实际应用中的测量精度要求,也满足应用经济性的需求,并提高了工作效率,发挥积极研究应用价值。
[Abstract]:In the field of geometric measurement, it is of great value in engineering application to improve the accuracy of straightness measurement in high precision space and to reduce the measurement error at the same time. In the domestic machinery processing enterprises, raising the straightness measurement accuracy of the long tube can not only improve the launching accuracy of the equipment, but also directly relate to the hitting accuracy of the equipment. Based on this, in the research of this subject, we choose the straightness and parallelism of the long tube bundle as the main research object, and optimize the design of the whole measuring system from the aspects of software and hardware design. In order to ensure that the measurement accuracy and economic requirements can be met, the designed system can be applied and popularized. In this paper, the error measurement methods of straightness and parallelism of long tube bundles are analyzed and studied, and various methods at home and abroad are compared. The methods of pitch method, gauge method and optical axis method are adopted. A scheme is designed to measure both straightness and parallelism simultaneously. At the same time, the evaluation method of straightness error and parallelism error is compared, and the straightness error evaluation method based on least square method is adopted. The parallelism of long tube bundle is measured on the basis of straightness measurement, and the spatial coordinate system is established. The parallelism is evaluated by two angles in space. The evaluation of straightness error and parallelism error is presented in the form of image by MATLAB software. The experimental results show that the optimal design of the error measurement system based on the straightness and parallelism of the long tube bundles can meet the requirements of the measurement accuracy in practical application, as well as the economic requirements of the application, and improve the working efficiency. Give full play to the value of active research and application.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB92

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