【作者】 洪定鸽；

【导师】 江雄心； 饶锡新；

【作者基本信息】 南昌大学 ， 机械设计及理论， 2007， 硕士

【摘要】 随着汽车产品数字化设计与制造技术的发展，汽车覆盖冲压件的在线质量检测与监测将成为其发展的瓶颈技术。传统的冲压件检测工具是千分尺，游标卡尺，样板或样件等，但这些检测工具检测结果不可靠、检测效率低下、没有质量跟踪、无法做到数字化集成。本论文课题研究的冲压件光学扫描检测仪，是一种基于逆向工程点云3D对齐技术的汽车覆盖冲压件检测方法。在检测设备的开发中，论文课题提出了基于UGNX、3Dmax和Eon Reality综合软件平台的设备方案的虚拟仿真设计方法。本论文从汽车覆盖件的在线质量检测的需求分析入手，阐述了汽车覆盖件光学扫描检测仪设备的基本原理，即利用光学测量头迅速准确地扫描获取覆盖件表面的点云数据，通过专用软件实现点云数据处理及拼合，然后将其与CAD数字样件模型直接进行三维对齐，以彩色误差图以及报表形式直观详细地反映被检测工件的整体质量。在此基础上对设备的硬件功能和软件功能进行了总体设计，并分两个章节详细阐述了该仪器设备硬件系统设计和软件系统设计过程中的相关技术。(1)设备硬件系统设计。检测设备的硬件部分包括滑架部件、滑架外罩、横梁部件、龙门框架(活动桥)、和工作台等部件。论文从结构形式分析入手，说明了各主要部件的设计或选用，并对设计的结构关键部件进行了理论分析。(2)设备软件系统的设计。用于检测的设备的精度与速度主要取决于机械结构、控制系统和测头，功能则主要取决于软件和测头，操作方便性也与软件密切相关。论文依据设计的冲压件检测流程，对设备的软件系统进行了需求描述和总体设计，并对软件开发的关键技术作了说明。最后，论文给出了该光学扫描检测仪设备虚拟设计的实现过程和相关技术。包括虚拟几何建模、行为建模和设计成果的网络发布等。更多还原

【Abstract】 With the development of the digitalization design and manufacturing for automobile product, it is becoming the bottleneck in online inspection for automotive sheet covering. The traditional inspection tools, such as micrometer, vernier caliper, check board and sample piece for check, are fallibility in the inspecting results, low efficiency, and no trace for the quality and unable to integrate in digitalization. The principle of the optical scanning stamping parts on-line inspecting instrument researching in this academic thesis bases on points cloud 3D alignment in Reverse Engineering. This paper brings forwards a virtual simulation & design method on integrated soft wares with UGNX, 3Dmax and Eon Reality for the inspection facility.From the beginning of the requirements of the stamping parts on-line inspecting, this paper expatiates the principle of the optical scanning stamping parts on-line inspecting instrument, in which optical probe acquire the data cloud of panel parts swift and accurately, and point cloud data is merged by special software, them it’s aligned with CAD modeling of digital part, overall qualities are. displayed by colorized error graph and reports directly. The overall hardware functions and software functions are accomplished based on the former principle; accordingly, the designs on hardware system and software system of the equipment, including relative technologies are illuminated in two chapters in detail.(1) The design of hardware system. The inspection equipment mainly consists of sliding framework, sliding closure, gantry frame (removable bridge) and worktable. After analyzing these structures, this dissertation illuminates the designs or choices of the main parts; it also analyzes the key parts by theory methods.(2) The design of software system. The efficiency and accuracy of the equipment depend on mechanical structure, control system, and probe, while the functions depend on software and probe, and the facility is connected with the software closely. The dissertation has accomplished the requirement description and the overall design of the software system based on the inspection process, and the key technologies of Software development have also been illuminated in the paper.At last, this paper introduces the realization process and relative technologies of virtual design on the inspecting instrument based on optical scanning, including geometric modeling, behavioral modeling and the distribution of design works.更多还原