I. Project Background

During laser marking, even workpieces of the same batch exhibit slight differences in size, shape, and position. Visual guidance can individually analyze and locate each workpiece to ensure highly consistent marking results, which is critical for standardized production and quality control.

The Shenshi Intelligent SD-C400 laser displacement sensor features a measuring range of ±200 mm, repeatability accuracy up to 0.15 mm, and a sampling frequency of up to 1 kHz. It can detect tiny displacements and depth variations on the object surface in real time, enabling precise positioning in laser marking and ensuring the accuracy of the position and depth of marked patterns or characters.

Figure | Schematic Diagram of Sensor Visual Guidance and Positioning

II. Vision-Guided Laser Marking Solution

During laser marking, the flatness and height of the workpiece surface may vary. The SD-C400 laser displacement sensor detects these variations in real time and automatically adjusts the focal length of the laser marking head, ensuring the laser beam is always focused on the workpiece surface. This eliminates issues such as blurry marking and inconsistent depth, guarantees the clarity and consistency of marked patterns and characters, and improves overall product quality and appearance.

The SD-C400 laser displacement sensor is characterized by its wide measuring range. By accurately measuring the distance between the workpiece surface and the laser marking head, it provides precise depth control information for the laser marking system. According to different materials and marking requirements, it precisely controls laser energy and action time to achieve marking effects at various depths, meeting diverse marking needs.

The SD-C series laser displacement sensors are flexibly adaptable to a variety of marking scenarios. With a compact size of only 44.4×25×20 mm and multiple communication advantages, they can be easily installed in various laser marking equipment, enhancing the flexibility of system design and layout, facilitating the integration and miniaturization of laser marking systems, and improving the adaptability of laser marking technology in different application scenarios.

III. Recommended Shenshi Intelligent Sensors

With the advantages of wide measuring range, high precision, high stability, multiple communication options, and compact size, the Shenshi Intelligent SD-C series miniature laser displacement sensors can be easily embedded into various marking devices even in limited spaces. They effectively enhance the adaptability of marking technology in diverse scenarios and meet the customized production requirements of laser marking in different industrial automation applications.