摘要
针对复杂型面刀具的设计要求和结构特点,研究开发了一种基于点采集的高精度非接触式激光扫描测量系统.系统采用高精密点式激光头,通过数据采集与扫描过程的协调控制,数据采集点间距可达5μm,可有效捕捉刀具型面的微细特征.标准试样试验结果表明,该系统的测量精度达到±10μm,整体误差小于0.375%.对直径为2 mm的精密刀具进行测量的结果表明,刀具的复杂突变表面可以得到精确再现.该系统实现了小尺寸复杂型面的高精度测量,在精密刀具等小尺寸复杂型面零件的逆向工程中具有极大的应用价值.
Aiming at the design demand and structure character of complex surface tools, a high precision non-touching laser scanning system based on point sampling was studied and developed. With a high accuracy point laser, the system reaches a data sample density of 5 μm by a harmonious control of data sample and scanning process, and the detailed surface feature of tools can be captured effectively. The experimental results of standard samples indicate that the system measurement accuracy can reach ± 10 μm and the whole relative error is lower than 0. 375 %. The data points of 2 mm diameter tool indicate an exact reappearance of the abrupt-changing surface of tool. The scanning system can realize high precision measurement of small size complex surface and can be applied in the reverse engineering and development of advanced machining tools.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2006年第2期227-230,共4页
Journal of Shanghai Jiaotong University
关键词
三维测量
刀具设计
逆向工程
three-dimensional measurement
tools design
reverse engineering
