FPCB 激光切割软件算法与控制系统设计.PDF
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FPCB 激光切割软件算法与控制系统设计
廖永红
(广东轻工职业技术学院计算机工程系 广州 510300 )
摘 要: 本文从FPCB高精度激光切割机设备的研发实践出发,针对激光切割机加工对象FPCB无夹具、易变形
的特点及光路精密性要求,介绍了激光切割机控制系统软件研制开发中的技术难点和关键技术,给出FPCB
激光切割软件关键算法及控制系统设计,通过对工作台、振镜和激光的协调控制,来实现工件的高质量切
割加工。系统基于计算机视觉技术,以CCD摄像机采集工件上的基准标记孔,获取待加工FPCB板的实际位置
和实际变形,采用Canny 算子及Hough算法实现PCB的影像定位及辅助伺服,用软件的方法实现双振镜描扫
系统的几何失真补偿、工件变形校正。
关键词: 激光切割;激光光绘控制;Canny边缘检测;Hough变换;双振镜失真补偿
Software Algorithms and Control System Design of FPCB Laser Cutting
Machine
Liao Yonghong, Li Luo
(GuangDong InDustry Technical College, Guangzhou 510300, China)
Abstract: Printed electronic technology is focus in industry as an efficient, low consumption,
energy saving, environmentally friendly technology. Ink-jet printing technology is the core of
fully printed electronic technology. This article design a Printed electronic Assembly line system
consisted of Fixed inkjet array, which can Implement high-speed inkjet printing. It Adopt the
print driver architecture In accordance with WDM models which cross kernel and user level, and
Direct-drive electronic circuit design to be printed to PCB. Interlaced Fixed Multi-inkjet Has
parallel high-speed printing features ,reduce assembly line machinery vibration, simplify
electromechanical servo systems, improve the accuracy of printing. The Design Consist of
sections of PCB Positioning, Image servo, Matching printing and Quality detection.
Key words:Laser Cutting ; Laser Scanning Control; Canny edge detection ;Hough Transform ;Dual
galvanometer distortion compensation
0 引言
随着电子产品向着小巧、轻薄、短小、便于携带等方向的发展,柔性印刷电路板(FPCB)
是近年来在电子及通讯行业得到日趋广泛应用的技术,这种柔性印制线路板主要是由聚酰亚
胺和丙烯酸树脂等材料组成,刚度低,体积小,可拉伸、弯曲、扭转而不会损坏导线,可以
遵从不同形状和特殊的封装尺。由于柔性印刷电路板刚度低、可弯曲、扭转而有较高的应用
范围。在PCB板制工艺制造过程中,需要进行电路单元切割、钻孔,用传统工具就很难完成
[2]
高精度切割 。近年来,激光切割技术发展很快,针对FPCB的高精度切割问题,激光切割技
术被引入到PCB制造行业,使用激光可将印刷线路板上的线路单元沿切
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