精品文档---下载后可任意编辑自 20 世纪 80 年代中期以来，快速成型技术的进展与应用越来越广 泛和深化，光固化成型机的需求也越来越大。由此，本论文针对 cps250 型激光 快速成型机的机械结构进行了设计，包括：1、X-Y 扫描机构；2、Z 轴升降机构； 3、刮刀机构，并且对其中的部分结构进行了改进。X-Y 方向的平面扫描运动和 刮刀的水平运动由原来的精密同步带传动改成精密滚珠丝杠传动，使其在行程 较长时不出现抖动，有利于保证扫描精度，运动稳定。采纳直线步进电机直接 连接滚珠丝杠，响应更加快速准确，同时因无中间部件，使机械结构简单化， 精度较高。 通过对立体激光快速成型机机械结构的设计，使得其运动和传动更加合理 和平稳，进而使其在生产过程中能够更好的进行生产。关键词：快速成型机；扫描机构；快速成型；传动；结构设计ABSTRACTThis article specifically for three-dimensional modeling of light-cured structural design of mechanical systems. X-Y scanning normally used to screw drive. Through the motor rotation, with another even reached the screw shaft, through to the X and Y to the two motors of rotation to achieve XY to scan; Z to the table, also by the screw and a rail. Z to the table by the extension units, columns, screw composition, its transmission is through the same motor rotation axis is to pass even reached the screw by screw to achieve the rotation of the table move up or down. Through the three-dimensional modeling of light-cured in the design and mechanical systems, making their campaigns and drive more reasonable and stable, then in the production process so that it can better carry out production.Key word: SLA；Scanning agencies；Rapid Prototyping；Transmission；Structure design精品文档---下载后可任意编辑目 录摘要 IABSTRACT 1 第 1 章绪论 1 快速原型技术简介 1 1.1.1 RPM 的基本构思 1 1.1.2 几种典型的快速成型技术 1 各种成型方法简介及对比 2 快速成型精度概述 2 快速成型机 SLA 技术原理 3 1.4 快速成型机 SLA 国内外现有技术...
