2023/09/21In the production process of plastic parts, surface defects and flatness detection are important aspects of industrial manufacturing. Common surface defects include cracks, bubbles, scratches, etc., which can affect the performance and service life of glass; And flatness is one of the key indicators for evaluating the quality of the formed surface of a product. For the installation surface, flatness directly affects the fitting effect and fastening performance of the components.
Today, we will introduce the application case of Yishi Technology's LVM2520 camera in the detection of surface defects and flatness of plastic parts!
1. Detection of flatness and surface defects of plastic parts
(Physical image)
2.1 Requirements Analysis
Material: Plastic parts
Size: Square with a side length of 2cm
Color: Transparent
2.2 Camera Selection
In response to the above detection requirements, Yishi Technology's LVM2520 line laser 3D camera is capable of performing this task. LVM2520 is mainly suitable for high-speed 3D inspection of small parts; Can provide a full frame acquisition rate of 2500Hz, with 1920 physical contour points and a maximum of 4096 uniformly spaced depth map sampling points; The collection rate can reach up to 56KHz, with an accuracy of up to 0.4 μ The Z-direction repeatability accuracy of m provides the best target visibility with a near field of view (FOV) of 28.1mm and a far field of view (FOV) of 38.6mm, making it a cost-effective 3D intelligent sensor.
2.3 Testing Environment and Installation Method
·After the camera is fixed, the product moves in a straight line along the center for scanning and measurement;
·The rotating platform needs a stable encoder signal output;
2.4 Image acquisition effect
1) Flatness detection effect
(Horizontal hovering effect point cloud image 1)
(Horizontal hovering effect point cloud image 2)
2) Surface defect detection effect
(Point cloud map of surface defect effect)
3. Testing Conclusion
·Yishi Technology's LVM2520 line laser 3D camera is confident in detecting defects such as flatness, surface scratches, and foreign objects in transparent plastic parts.
·Detection value: Through real-time and high-precision 3D visual inspection, precise control of key parameters in the plastic production process can be achieved, thereby improving product quality and production efficiency.
Yishi Technology was founded in 2017 and is a technology-based enterprise that integrates industrial visual product design, research and development, production, sales, and service. The company focuses on the development of underlying algorithms and hardware implementation for industrial visual products, with a complete set of independent intellectual property rights in software and hardware technology, aiming to become the most trustworthy leader in visual sensors.
The LVM series 3D intelligent sensors developed by Yishi harden industry-leading 3D imaging algorithms into chips, achieving high-speed and high-performance measurements with a repeatability accuracy of 0.1 micrometers. The product's performance indicators exceed those of foreign peers and can be replaced by imports. At present, the company's products have been widely used in consumer electronics manufacturing, new energy manufacturing, automotive manufacturing, sheet metal processing, wood processing, food and beverage processing and other fields.
