一种钢坯表面缺陷的视觉检测装置
By installing a high-definition image recognition and detection system and a light source lifting mechanism on the surface of the steel billet, all-round uniform illumination and high-contrast imaging of the steel billet surface are achieved, solving the problems of low detection rate and poor real-time performance in the existing technology, and improving detection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANSHAN MEDIUM PLATE STRIP STEEL FACTORY
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the detection of surface defects in steel billets relies on manual visual inspection and stroboscopic detection methods, which have low detection rates and poor real-time performance, and cannot meet the needs of modern industrial production.
A high-definition image recognition and detection system is adopted, which is combined with a gantry, a light source lifting mechanism and a displacement sensor. A 16-megapixel line scan camera and an MV-LTDS-1500-W industrial surface light vision light source are installed. The height of the light source is adjusted through a PLC control system to achieve all-round uniform illumination and high-contrast imaging of the steel billet surface.
It improves the efficiency and accuracy of steel billet surface defect detection, reduces the input of manpower and material resources, and meets the needs of modern industrial production.
Smart Images
Figure CN224518568U_ABST
Abstract
Claims
1. A device for visual inspection of surface defects of a billet, characterized by, The system includes a gantry frame, a middle crossbeam, a light source lifting mechanism, a detection camera, and a displacement sensor. The gantry frame is a double-layer structure with front and rear sections. The detection camera is fixed in the middle position of the upper crossbeam of the gantry frame. There are two sets of light source lifting mechanisms, one in front and one behind, one on the left and one on the right, installed on the middle crossbeam. The middle crossbeam is fixed in the upper and lower middle parts of the gantry frame. The steel billet being detected runs below the light source lifting mechanism. The displacement sensor is integrated with the detection camera.
2. The apparatus for visual inspection of surface defects of a billet according to claim 1, wherein The light source lifting mechanism includes a light source, guide slide rods, a light source mounting plate, an electric lifting cylinder, and a pad. The pad is fixed on the middle crossbeam. The electric lifting cylinder is fixedly installed in the middle position of the pad. The bottom of the telescopic rod of the electric lifting cylinder passes through the middle crossbeam and connects to the light source mounting plate. Two guide slide rods are arranged on both sides of the electric lifting cylinder and are slidably connected to the pad. The bottom of the guide slide rods passes through the middle crossbeam and connects to the light source mounting plate. The light source is fixed on the bottom surface of the light source mounting plate.
3. The apparatus for visual inspection of surface defects of a billet according to claim 2, wherein A linear bearing is provided between the guide slide rod and the pad.
4. The apparatus for visual inspection of surface defects of a billet according to claim 2, wherein A deep groove ball bearing is provided between the guide slide rod and the light source mounting plate.
5. The apparatus for visual inspection of surface defects of a billet according to claim 2, wherein The light source is a linear light source, and the light source mounting plate is a long strip-shaped flat plate adapted to the light source.
6. The apparatus for visual inspection of surface defects of a billet according to claim 2, wherein The electric lifting cylinder is a servo electric cylinder.
7. The apparatus for visual inspection of surface defects of a billet according to claim 1, wherein The gantry frame and the intermediate crossbeam are both assembled by welding square tubes.
8. The apparatus for visual inspection of surface defects of a billet according to claim 1, wherein The detection camera is a 16-megapixel MV-CL162-91F2M line scan camera.