一种特殊扫描仪的精密光机电一体化设计

发布时间：2018-12-14 14:55

【摘要】：随着艺术品价值的提升，人们对珍贵艺术品的数字化保存越来越重视。对于一些难以移动的大幅面珍贵艺术品而言，使用数码相机和平台式扫描仪对其数字化都各有利弊。本文结合数码相机和扫描仪各自的优点，通过查阅大量国外相关产品和文献，，设计了一种特殊的小型精密扫描仪，即扫描后背。使用这种扫描后背可以很方便地实现对大幅面艺术品进行高精度数字化工作。本文首先简述了研究背景、意义和国内外研究现状。结合国内外的相关技术和产品，确定了扫描后背的光机电一体化总体设计方案。然后，论文详细叙述了光学系统中激光水平仪、激光测距仪和机械结构等因素对成像精度影响的计算过程。接着，论文详细论述了使用SolidWorks2008软件对机械结构部分的设计过程，其中着重论述了传动结构部分的设计，包括滚珠丝杠、步进电机、联轴器、导轨的选择和相应的计算校核。之后，论文详细阐述了使用ANSYS Workbench12.0软件对传动结构进行静态特性分析和模态分析的过程，并对分析结果进行了校核。最后，本文对软件系统结构和扫描软件及其配置文件进行了介绍。
[Abstract]:With the promotion of the value of works of art, people pay more and more attention to the digital preservation of precious works of art. Digital cameras and flattop scanners have both advantages and disadvantages for large-format precious works of art that are hard to move. Combining the advantages of digital camera and scanner, this paper designs a special small precision scanner, which is called back scanning, by consulting a large number of related products and documents from abroad. The high-precision digitization of large-format works of art can be realized easily by using this kind of back scanning. In this paper, the research background, significance and research status at home and abroad are briefly described. Combined with related technologies and products at home and abroad, the overall design scheme of optical and electromechanical integration of scanning back is determined. Then, the calculation process of the influence of laser level, laser rangefinder and mechanical structure on the imaging accuracy in the optical system is described in detail. Then, the paper discusses in detail the design process of mechanical structure using SolidWorks2008 software, including ball screw, stepping motor, coupling, guide rail selection and corresponding calculation and checking. After that, the process of static characteristic analysis and modal analysis of transmission structure using ANSYS Workbench12.0 software is described in detail, and the analysis results are checked. Finally, the software system structure, scanning software and its configuration file are introduced.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP334.22

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