background knowledge

In the modern electronic manufacturing industry, printed circuit board (PCB) is the core component of all electronic equipment, and the accuracy and quality of PIN needle directly affect the function and reliability of the circuit board. With the increasing miniaturization and complexity of electronic products, higher requirements are put forward for PIN needle detection on PCB board. Traditional 2D detection technology is often difficult to meet this demand, and the emergence of 3D detection technology, to ensure the quality of computer PCB board PIN needle provides an accurate solution.

Camera selection

Today for you to introduce the application of technology LVM2330 line laser 3D camera in 3C industry detection case!

The LVM 2330-line laser 3D camera of Next vision tech is designed to meet the harsh production environment of the factory, meet the needs of various high-speed and mass detection applications; can provide 1000Hz full frame acquisition rate, physical contour 1920 points, depth map uniform spacing sampling maximum 4096 points; LVM2330 Z repetition accuracy accurate to 0.6 μ m, the proximal visual field range (FOV) is 55.4mm, the remote visual field range (FOV) is 90.5mm, providing the best target is visible and suitable for fast moving object detection.

PCB plate Pin needle height detection

requirement analysis

·· Material: PCB board

· Color: silver

· Size: 500mm * 500mm

Detection environment and installation method

· After the camera is fixed, the product is scanned and measured along the linear movement of the center;

· The test platform needs to have a stable encoder signal output;

· Communication: TCP / IP

Drawing effect

* The figure shows the point cloud diagram and the local effect diagram

· The LVM 2330-ray laser 3D camera can accurately capture the geometry of the moving Pin pin on the high-speed conveyor belt, which can adapt to different heights of different parts, and realize effective detection.

· Detection value: measure the parameters of PIN needle with micron accuracy to ensure the accuracy of test results; improve production efficiency, automatically identify and classify PIN needle defects, and reduce the subjectivity and error of manual judgment.

About the next view

Founded in 2017, Next vision tech is a high-tech enterprise integrating the design, research and development, production, sales and service of industrial vision products. The company focuses on the underlying algorithm development and hardware realization of industrial vision products, with a full set of independent intellectual property rights of hardware and software technology, to become the most reliable vision sensor leader as the goal.

▲ Research on vision technology and serve Chinese intelligent manufacturing

The LVM series 3D intelligent sensor developed by Next vision tech hardening the industry-leading 3D imaging algorithm in the chip to achieve high-speed and high-performance measurement. Its repetition accuracy reaches 0.1 micron, and the performance index of the product exceeds that of foreign counterparts, which can realize import substitution. At present, the company's products have been widely used in consumer electronics manufacturing, new energy manufacturing, automobile manufacturing, sheet metal processing, wood processing, food and beverage processing and other fields.