A material surface defect detection device
By designing a material surface defect detection device, which utilizes hydraulic cylinders and motor-driven flipping and circumferential inspection, combined with top and side visual inspection cameras, the problem of traditional inspection equipment being unable to fully cover material surface defects has been solved, achieving efficient all-round inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI CHUNHUI OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional single-fixed-angle detection equipment cannot fully cover material surface defects, resulting in a high rate of missed detections, especially for materials with complex shapes or those that need to be flipped for inspection.
A material surface defect detection device was designed, comprising a base, a detection mechanism, a lifting mechanism, and a positioning mechanism. The device achieves material flipping and circumferential detection through the coordinated action of hydraulic cylinders and motors, and performs all-round detection by combining top and side visual inspection cameras.
It enables comprehensive detection of materials, improves detection efficiency, and reduces the false negative rate, especially for materials with complex shapes.
Smart Images

Figure CN224303580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface defect detection technology, and in particular to a material surface defect detection device. Background Technology
[0002] In modern industrial production, the detection of surface defects in materials is one of the key steps in ensuring product quality. Visual inspection uses visual inspection cameras to replace the human eye for measurement and judgment. Traditional visual inspection typically uses a single, fixed-angle inspection device for automated inspection.
[0003] While using a single, fixed-angle detection device for automated inspection improves efficiency to some extent, its detection range is limited. Since surface defects can appear in various directions, fixed-angle devices often cannot provide comprehensive coverage, leading to a high rate of missed detections. This is especially true for materials with complex shapes or those requiring flipping for inspection; single-angle devices fall short in this regard. Therefore, a material surface defect detection device needs to be designed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a material surface defect detection device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A material surface defect detection device includes a base, a fixing frame fixed to the upper end of the base, a detection mechanism mounted on the fixing frame, a receiving groove provided at the upper end of the base, a lifting mechanism provided inside the receiving groove, a positioning mechanism located above the receiving groove at the upper end of the base, two fixing plates fixed to the upper end of the base, the two fixing plates being symmetrically arranged on both sides of the receiving groove, a first hydraulic cylinder fixedly mounted on the side wall of each of the two fixing plates, one of the first hydraulic cylinders having its telescopic end penetrating through the fixing plate and having a left support mechanism, the other first hydraulic cylinder having its telescopic end penetrating through the fixing plate and having a right support mechanism, and support columns fixed at the four corners of the lower end of the base.
[0007] As a further improvement of this utility model, the detection mechanism includes a rotating column that runs through a fixed frame. The rotating column is rotatably connected to the fixed frame via a bearing. A second motor is installed at the upper end of the fixed frame, and the output shaft of the second motor is fixedly connected to the upper end of the rotating column. An L-shaped frame is fixed at the lower end of the rotating column. A top visual inspection camera is installed at the lower end of the horizontal part of the L-shaped frame, and a side visual inspection camera is installed on the side wall of the vertical part of the L-shaped frame.
[0008] As a further improvement of this utility model, the lifting mechanism includes a lifting plate disposed inside the receiving groove, and a second hydraulic cylinder is installed at the lower end of the base. The telescopic end of the second hydraulic cylinder passes through the base and is fixedly connected to the lower end of the lifting plate.
[0009] As a further improvement of this utility model, the positioning mechanism includes a positioning frame, and fixing rods are fixed on both the left and right side walls of the positioning frame. Fixing bolts are provided through the fixing rods and are screwed to the upper end of the base.
[0010] As a further improvement of this utility model, the left support mechanism includes a first device frame fixedly connected to the telescopic end of the first hydraulic cylinder, and a first rotating block rotatably connected to the first device frame is provided through the side wall of the first device frame.
[0011] As a further improvement of this utility model, the right support mechanism includes a second device frame fixedly connected to the telescopic end of the first hydraulic cylinder, a second rotating block rotatably connected to the second device frame is provided through the side wall of the second device frame, a first motor is installed on the inner side of the second device frame, and the output shaft of the first motor is fixedly connected to the second rotating block.
[0012] The beneficial effects of this utility model are:
[0013] By setting up the function of detecting defects on the flipped surface of materials, it is easier to perform the flipping operation, thereby improving the detection efficiency. It also has the effect of detecting defects on the side and around the perimeter, thus enabling the materials to be fully inspected and making it easy to use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a material surface defect detection device proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the detection mechanism of a material surface defect detection device proposed in this utility model;
[0016] Figure 3 This is a schematic diagram of the base, receiving groove, and positioning mechanism of a material surface defect detection device proposed in this utility model.
[0017] Figure 4 This is a schematic diagram of the lifting mechanism of a material surface defect detection device proposed in this utility model.
[0018] In the diagram: 1. Base, 2. Support column, 3. Fixing plate, 4. First hydraulic cylinder, 5. First device frame, 6. First rotating block, 7. Second rotating block, 8. Second device frame, 9. First motor, 10. Fixing frame, 11. Second motor, 12. Top visual inspection camera, 13. L-shaped rod, 14. Side visual inspection camera, 15. Positioning frame, 16. Rotating column, 17. Accommodating groove, 18. Fixing rod, 19. Fixing bolt, 20. Second hydraulic cylinder, 21. Lifting plate. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figures 1-4 A material surface defect detection device includes a base 1, a fixing frame 10 fixed to the upper end of the base 1, a detection mechanism mounted on the fixing frame 10, a receiving groove 17 provided at the upper end of the base 1, a lifting mechanism provided inside the receiving groove 17, a positioning mechanism located above the receiving groove 17 at the upper end of the base 1, the positioning mechanism including a positioning frame 15, fixing rods 18 fixed on both the left and right side walls of the positioning frame 15, fixing bolts 19 passing through the fixing rods 18 and screwed to the upper end of the base 1, two fixing plates 3 fixed at the upper end of the base 1, the two fixing plates 3 symmetrically arranged on both sides of the receiving groove 17, a first hydraulic cylinder 4 fixedly mounted on the side wall of each of the two fixing plates 3, one of which... The telescopic end of the first hydraulic cylinder 4 passes through the fixed plate 3 and is provided with a left support mechanism. The left support mechanism includes a first device frame 5 fixedly connected to the telescopic end of the first hydraulic cylinder 4. A first rotating block 6 rotatably connected to the first device frame 5 is provided through the side wall of the first device frame 5. The telescopic end of the other first hydraulic cylinder 4 passes through the fixed plate 3 and is provided with a right support mechanism. The right support mechanism includes a second device frame 8 fixedly connected to the telescopic end of the first hydraulic cylinder 4. A second rotating block 7 rotatably connected to the second device frame 8 is provided through the side wall of the second device frame 8. A first motor 9 is installed on the inner side of the second device frame 8. The output shaft of the first motor 9 is fixedly connected to the second rotating block 7. Support columns 2 are fixed at the four corners of the lower end of the base 1.
[0021] In this utility model, the detection mechanism includes a rotating column 16 that runs through the fixed frame 10. The rotating column 16 is rotatably connected to the fixed frame 10 through a bearing. A second motor 11 is installed at the upper end of the fixed frame 10. The output shaft of the second motor 11 is fixedly connected to the upper end of the rotating column 16. An L-shaped frame 13 is fixed at the lower end of the rotating column 16. A top visual inspection camera 12 is installed at the lower end of the horizontal part of the L-shaped frame 13. A side visual inspection camera 14 is installed on the side wall of the vertical part of the L-shaped frame 13.
[0022] The lifting mechanism includes a lifting plate 21 disposed inside the receiving groove 17, and a second hydraulic cylinder 20 is installed at the lower end of the base 1. The telescopic end of the second hydraulic cylinder 20 passes through the base 1 and is fixedly connected to the lower end of the lifting plate 21.
[0023] In use, the material is placed on the base 1 and positioned inside the positioning frame 15. The top visual inspection camera 12 detects defects on the upper surface of the material. Then, the second hydraulic cylinder 20 extends, causing the lifting plate 21 to move upwards. The lifting plate 21 then lifts the material upwards. Next, the first hydraulic cylinder 4 extends, causing the first rotating block 6 and the second rotating block 7 to clamp the material on both sides. Then, the second hydraulic cylinder 20 retracts, causing the lifting plate 21 to descend. Finally, the first motor 9 is activated, driving the second rotating block 7 to rotate, causing the material to flip so that its lower surface faces upwards. The top visual inspection camera 12 then detects defects. 2. Complete the defect detection on the lower surface of the material, then start the second hydraulic cylinder 20 to extend, so that the lifting plate 21 moves to the bottom of the material to support it. Then start the first hydraulic cylinder 4 to retract, so that the first rotating tube 6 and the second rotating block 7 move away from the material. Then start the second hydraulic cylinder 20 to extend again, so that the material moves to the horizontal position of the side visual inspection camera 14. The side visual inspection camera 14 performs defect detection on the side of the material. Then start the second motor 11 to drive the L-shaped rod 13 to rotate. The L-shaped rod 13 drives the side visual inspection camera 14 to rotate around the circumference of the material, so that defect detection can be performed on all four sides of the material.
[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A material surface defect detection device, comprising a base (1), characterized in that, The upper end of the base (1) is fixed with a fixing frame (10), and a detection mechanism is installed on the fixing frame (10). The upper end of the base (1) is provided with a receiving groove (17), and a lifting mechanism is provided inside the receiving groove (17). The upper end of the base (1) is provided with a positioning mechanism located above the receiving groove (17). The upper end of the base (1) is fixed with two fixing plates (3). The two fixing plates (3) are symmetrically arranged on both sides of the receiving groove (17). A first hydraulic cylinder (4) is fixedly installed on the side wall of each of the two fixing plates (3). The telescopic end of one of the first hydraulic cylinders (4) passes through the fixing plate (3) and is provided with a left support mechanism. The telescopic end of the other first hydraulic cylinder (4) passes through the fixing plate (3) and is provided with a right support mechanism. Support columns (2) are fixed at the four corners of the lower end of the base (1).
2. The material surface defect detection device according to claim 1, characterized in that, The detection mechanism includes a rotating column (16) that runs through a fixed frame (10). The rotating column (16) is rotatably connected to the fixed frame (10) via a bearing. A second motor (11) is installed at the upper end of the fixed frame (10). The output shaft of the second motor (11) is fixedly connected to the upper end of the rotating column (16). An L-shaped frame (13) is fixed at the lower end of the rotating column (16). A top visual inspection camera (12) is installed at the lower end of the horizontal part of the L-shaped frame (13). A side visual inspection camera (14) is installed on the side wall of the vertical part of the L-shaped frame (13).
3. The material surface defect detection device according to claim 1, characterized in that, The lifting mechanism includes a lifting plate (21) disposed inside the receiving groove (17), and a second hydraulic cylinder (20) is installed at the lower end of the base (1). The telescopic end of the second hydraulic cylinder (20) passes through the base (1) and is fixedly connected to the lower end of the lifting plate (21).
4. The material surface defect detection device according to claim 1, characterized in that, The positioning mechanism includes a positioning frame (15), and fixing rods (18) are fixed on both the left and right side walls of the positioning frame (15). Fixing bolts (19) are provided through the fixing rods (18), and the fixing bolts (19) are screwed to the upper end of the base (1).
5. The material surface defect detection device according to claim 1, characterized in that, The left support mechanism includes a first device frame (5) fixedly connected to the telescopic end of the first hydraulic cylinder (4), and a first rotating block (6) rotatably connected to the first device frame (5) is provided through the side wall of the first device frame (5).
6. The material surface defect detection device according to claim 1, characterized in that, The right support mechanism includes a second device frame (8) fixedly connected to the telescopic end of the first hydraulic cylinder (4). A second rotating block (7) rotatably connected to the second device frame (8) is provided through the side wall of the second device frame (8). A first motor (9) is installed on the inner side of the second device frame (8). The output shaft of the first motor (9) is fixedly connected to the second rotating block (7).