In the actual production of PCB (printed circuit board), there must be strict quality inspection before leaving the factory, preventing the occurrence of dueling, leak welding, etc., which used manual detection, but with the size of the board and electronic devices. Continventing is no longer suitable for manual detection, therefore there is an automatic optical detection (AOI) system based on camera and optical principles. During the detection process, the machine automatically scans the PCB through the camera, collects the image, the solder joint of the test is compared to the qualified parameters in the database. After image processing, check the PCB defects, and display the defect display / label via the display or automatic flag. For maintenance personnel trimming.
AMFAX A3DI is a 3D AOI system that uses two laser sources to perform real-time scanning, and the accuracy is within 3 μm, which uses true 3D technology to measure each board assembly, and will not be subject to the device and PCB plate color, light, height, The influence of the position and shape, provides accurate and repeatable test results, the output of the output of X, Y, Z stereoscopic coordinates, complies with IPC610 Class 1/2/3 standard, which can directly enter the industry standard SPC system Provide real-time data to control and enhance production welding process.
Figure 1: 3D automatic optical detection system in AMFAX introduced A3DI
The A3DI control system uses the NI CRIO-9075 CompactRIO controller, integrated Xilinx Virtex-5 LX25 FPGA device, the development of the control system uses the Ni LabVIEW system modeling tool to achieve monitoring and control of all aspects of A3DI, Includes motors, control switches, positions, emergency braking, and the like.
Figure 2: 3D optical detection image output by AMFAX A3DI
The NI CompactRIO controller system has higher performance, openness, and connection functions, providing reliability high quality assurance, whether controlled complex machines or monitoring features, compactrio platforms have unparalleled advantages over traditional PLC controllers. At 2017 NI Technology Summit, CompactRioA3DI has obtained the most influential awards for electronics and semiconductor packets.
About AMFAX:
AMFAX is a world-class system test solution provider, has accumulated 30 years of industry experience, providing users with high quality, high performance and low-cost automation test equipment, involving aviation, defense, transportation, and consumer electronics. I have won wide praise and recognition of customers.
Original link: https://www.eeboard.com/news/pcb-7/
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