四轴坐标记录仪的设计  

Design of four-axis coordinates recorder

作　　者：杨帆[1,2] 马新文[1] 张皓[1] 陈政文[1] 

机构地区：[1]武汉工程大学电气信息学院,湖北武汉430074 [2]湖北省智能机器人重点实验室,湖北武汉430074

出　　处：《武汉工程大学学报》2013年第8期74-77,共4页Journal of Wuhan Institute of Technology

基　　金：湖北省自然科学基金(2010CDB11101);武汉工程大学研究生教育创新基金(CX201252);校级教研项目(X2012027)

摘　　要：为了节省视觉标定的时间,设计了一种用于激光银浆蚀刻机快速获取标定数据的四轴坐标记录仪.采用低功耗的单片机作为主控芯片,通过两个正交解码接口芯片对磁栅读头传来的四组正交信号进行采集、更新、保存来记录标定前后的坐标值;通过液晶显示和按键模块,来输入磁栅脉冲的距离值以及相关参数;并通过铁电存储器保存掉电关机时需要保存的各种坐标值;最后通过低功耗收发器实现与主机通讯来传输记录数据.该四轴坐标记录仪通过配合上位机软件,根据计算结果移动电荷耦合器件对蚀刻图形进行位置和姿态调整来获取新坐标,使繁琐的双目视觉标定时间由原来的近30分钟减少为3分钟,从而实现高效率、高精度的银浆蚀刻.To save the time of visual calibration,a four-axis coordinate recorder of acquiring calibration data quickly was designed for silver laser plasma etching systems.Mixed signal processor was considered as the main control chip.Then,four sets of orthogonal signal were collected,updated and saved to record coordinates values from the magnetic grid read head by the two quadrature decoder interface chips.The distance values and association parameters of magnetic grid pulse were entered by liquid crystal display and key module.The coordinate values that need to be saved was saved by external FM31256-G when the computer shutdown.At last,communication with host machine was achieved by max485 to transmit recorded data.A four-axis coordinate recorder is combined with the upper computer software,and according to calculations,moves charge-coupled device camera to adjust location and attitude of etched graphics to obtain the new coordinates.The use of four-axis coordinate recorder can make the time of tedious calibration of binocular vision decrease from nearly 30 minutes to 3 minutes,so that it can achieve high efficiency and high precision silver pastes for etching.

关 键 词：蚀刻机 记录仪 单片机 正交解码接口芯片 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]