An image acquisition and illumination device for a sheet metal part defect detection system

Abstract

The utility model discloses a kind of image acquisition and lighting device of sheet metal part defect detection system, including box, the top of one side of the box is provided with protective cover, the lower end of the box is provided with turnover plate, the center of the bottom of the turnover plate is fixedly installed with industrial camera, the position of the bottom of the turnover plate is fixedly installed with illuminating lamp on both sides, the bottom of the box is fixedly installed with adjusting motor, the upper end of the adjusting motor is provided with threaded column. The image acquisition and lighting device of sheet metal part defect detection system, through the design of protective cover, turnover plate, adjusting motor, internal thread plate, transmission case, rotating column, turnover motor, driving gear, driven gear and threaded column, when the equipment is in non-working state, control turnover motor to start, rotate driving gear through second output shaft, drive the rotation of driven gear meshed with it, and then make rotating column together with turnover plate overturn to horizontal position upwards.

Description

Technical Field

[0001] This utility model relates to the technical field of image acquisition and lighting devices, specifically to an image acquisition and lighting device for a sheet metal defect detection system. Background Technology

[0002] The image acquisition and lighting device of the sheet metal defect detection system is the core equipment used to automatically acquire images of the sheet metal surface and provide uniform illumination. It captures minute defects (such as scratches, dents, cracks, etc.) on the sheet metal surface through a high-resolution industrial camera, and enhances image contrast with a dedicated lighting system to ensure that defect features are clearly presented, thereby achieving efficient and accurate automated defect detection.

[0003] Existing sheet metal defect detection systems generally lack automated protective adjustment mechanisms for their image acquisition and lighting devices when not in operation. Industrial camera lenses and high-precision light source modules are constantly exposed to harsh industrial environments. During equipment downtime, metal shavings and oily mist splashed in the workshop directly adhere to the optical component surfaces, forming a difficult-to-remove contamination layer. This leads to light spots and contrast imbalances during imaging, shortening the lifespan of the image acquisition and lighting devices. Therefore, we propose an image acquisition and lighting device for sheet metal defect detection systems. Utility Model Content

[0004] The purpose of this utility model is to provide an image acquisition and lighting device for a sheet metal defect detection system, in order to solve the problem mentioned in the background art that the existing image acquisition and lighting devices of sheet metal defect detection systems are generally not equipped with automated protection and adjustment mechanisms when not in operation. The industrial camera lens and high-precision light source module are always exposed to the harsh industrial environment. During equipment shutdown, metal debris and oily mist splashed in the workshop will directly adhere to the surface of the optical components, forming a pollution layer that is difficult to remove, resulting in light spots and contrast imbalance during imaging, and shortening the service life of the image acquisition and lighting device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an image acquisition and lighting device for a sheet metal defect detection system, comprising a housing, a protective cover on the top of one side of the housing, a flip plate at the bottom of the housing, an industrial camera fixedly mounted at the center of the bottom of the flip plate, lighting lamps fixedly mounted on both sides of the bottom of the flip plate, an adjusting motor fixedly mounted at the bottom of the housing, a threaded column at the upper end of the adjusting motor, a transmission box on one side of the flip plate, a rotating column fixedly connected to the center of one side of the flip plate, a driven gear fixedly mounted on the surface of the rotating column corresponding to the inside of the transmission box, a driving gear meshing with the lower end of the driven gear, and a flip motor fixedly mounted on one side of the bottom of the transmission box.

[0006] Compared with the prior art, the beneficial effects of this utility model are: The image acquisition and lighting device of this sheet metal defect detection system, through the design of a protective cover, a flipping plate, an adjusting motor, an internal threaded plate, a transmission box, a rotating column, a flipping motor, a driving gear, a driven gear, and a threaded column, allows the system to operate in a non-working state. When the equipment is not in operation, the flipping motor is activated, driving the driving gear to rotate via the second output shaft. This drives the driven gear, which in turn rotates, causing the rotating column and flipping plate to flip upwards to a horizontal position. Simultaneously, the adjusting motor drives the threaded column to rotate via the first output shaft, using a threaded transmission mechanism to cause the internal threaded plate to rise vertically along the slide groove, ultimately lifting the industrial-grade sheet metal defect detection system. The camera and lighting are completely housed inside the protective cover. The flip plate and the bottom opening of the protective cover form a sealed structure, which not only prevents the deposition of metal dust and oil mist on the lens and light source surface, reducing the false detection rate caused by contamination, but also withstands accidental collisions and impacts, avoiding lens displacement or light source damage caused by external forces in traditional devices. In addition, the adjustable screw column lifting mechanism driven by the motor can realize the height adjustment of the industrial camera within the range. Combined with the angle adjustment function of the flip plate, the device can adapt to the inspection needs of sheet metal parts of different thicknesses, significantly improving the environmental adaptability and inspection versatility of the equipment. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A magnified view of part A in the diagram; Figure 3 This is a three-dimensional structural view of the flipping mechanism of this utility model; Figure 4 This is the main view of the structure of this utility model.

[0008] In the diagram: 1. Box; 2. Conveyor; 3. Protective cover; 4. Connecting column; 5. Tilting plate; 6. Industrial camera; 7. Lighting lamp; 8. Adjusting motor; 9. Internal threaded plate; 10. Slider; 11. Slide; 12. Vertical groove; 13. Connecting plate; 14. Transmission box; 15. Rotating column; 16. Tilting motor; 17. Driving gear; 18. Driven gear; 19. Threaded column. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] Please see Figure 1-4 This utility model provides a technical solution: an image acquisition and lighting device for a sheet metal defect detection system, including a housing 1, a protective cover 3 on the top of one side of the housing 1, a flip plate 5 at the bottom of the housing 1, an industrial camera 6 fixedly installed at the center of the bottom of the flip plate 5, lighting lamps 7 fixedly installed on both sides of the bottom of the flip plate 5, an adjusting motor 8 fixedly installed at the bottom inside the housing 1, a threaded column 19 at the upper end of the adjusting motor 8, a transmission box 14 on one side of the flip plate 5, a rotating column 15 fixedly connected to the center of one side of the flip plate 5, a driven gear 18 fixedly installed on the surface of the rotating column 15 corresponding to the inside of the transmission box 14, a driving gear 17 meshing with the lower end of the driven gear 18, and a flip motor 16 fixedly installed on one side of the bottom of the transmission box 14.

[0011] A connecting column 4 is fixedly connected to the center of one side of the protective cover 3. One side of the connecting column 4 is fixedly connected to the top of one side of the box 1. The protective cover 3 is securely suspended on the top of the box 1 through the connecting column 4.

[0012] The top of the threaded column 19 is movably connected to a bearing fixedly installed at the top center inside the housing 1. The adjusting motor 8 is fixedly connected to the first output shaft through its top output end. The top of the first output shaft is fixedly connected to the bottom of the threaded column 19 through a coupling. The adjusting motor 8 drives the threaded column 19 to rotate, and uses thread transmission to realize the vertical lifting and lowering of the internal thread plate 9, thereby precisely adjusting the acquisition height of the industrial camera 6 or causing the flipped plate 5 to rise towards the housing 1 after being flipped to protect the image acquisition and lighting mechanism.

[0013] A slider 10 is fixedly installed at the center of one side of the internal thread plate 9. A groove 11 is opened at the top position on one side of the housing 1. One side of the slider 10 extends into the interior of the groove 11 and slides in connection with the inner wall of the groove 11. The slider 10 and the groove 11 form a linear guide mechanism to ensure that the internal thread plate 9 does not wobble during the lifting and lowering process, thereby improving the stability and repeatability of the position adjustment of the industrial camera 6.

[0014] A vertical groove 12 is provided on the top side of one side of the housing 1. Connecting plates 13 are fixedly connected to the top and bottom sides of the transmission box 14. One end of each connecting plate 13 extends through the outside of the vertical groove 12 and is fixedly connected to the outer wall of the transmission box 14, allowing the transmission box 14 to rise and fall synchronously with the internal thread plate 9, ensuring that the power transmission paths of the flip motor 16 and the adjustment motor 8 are always aligned, and avoiding mechanical interference.

[0015] One side of the rotating column 15 extends into the interior of the transmission box 14 and is movably connected to a bearing fixedly installed at the center of one side of the transmission box 14. The flip motor 16 is fixedly connected to a second output shaft through its top output end. The top of the second output shaft extends into the interior of the transmission box 14 and is fixedly connected to the center of the bottom of the drive gear 17. The flip motor 16 drives the drive gear 17 to rotate, and through gear meshing, it drives the rotating column 15 and the flip plate 5 to flip, realizing the automatic storage or unfolding of the industrial camera 6 and the lighting lamp 7, replacing manual operation and improving the automation level of the equipment.

[0016] A stabilizing plate is fixedly connected to the bottom of the housing 1, and a conveyor 2 is installed on one side of the housing 1. The conveyor 2 realizes the automatic transport of sheet metal parts and works in conjunction with the image acquisition system to complete the online inspection process.

[0017] When the equipment starts, the control system first sends a command to the tilting motor 16, and the second output shaft drives the drive gear 17 to rotate. Through the meshing transmission with the driven gear 18, the rotating column 15 and the tilting plate 5 are tilted downwards to a vertical position, exposing the industrial camera 6 and the lighting lamp 7 to the working area. At the same time, the adjusting motor 8 drives the threaded column 19 to rotate through the first output shaft. Using the threaded transmission, the internal threaded plate 9 is lowered vertically along the slide 11, adjusting the industrial camera 6 to a suitable acquisition height. At this time, the lighting lamp 7 provides a uniform light source, and the industrial camera 6 acquires high-definition images of the sheet metal parts conveyed by the conveyor 2. The system performs defect detection by analyzing the images. When the equipment stops, the control system starts the tilting motor 16 in reverse, driving the tilting plate 5 to tilt upwards to a horizontal position. At the same time, the adjusting motor 8 rotates the threaded column 19 in reverse, causing the internal threaded plate 9 to rise vertically along the slide 11. Finally, the industrial camera 6 and the lighting lamp 7 are completely housed inside the protective cover 3. At this time, the tilting plate 5 and the bottom opening of the protective cover 3 are closed, forming a sealed protective space, effectively blocking external dust, oil, and impact.

[0018] In summary, the image acquisition and lighting device of this sheet metal defect detection system, through the design of the protective cover 3, the flipping plate 5, the adjusting motor 8, the internal thread plate 9, the transmission box 14, the rotating column 15, the flipping motor 16, the driving gear 17, the driven gear 18, and the threaded column 19, allows the system to operate in a non-working state. When the equipment is not in operation, the flipping motor 16 is activated, driving the driving gear 17 to rotate via the second output shaft. This drives the driven gear 18, which in turn rotates, causing the rotating column 15 and the flipping plate 5 to flip upwards to a horizontal position. Simultaneously, the adjusting motor 8 drives the threaded column 19 to rotate via the first output shaft, using a threaded transmission mechanism to move the internal thread plate 9 along the slide groove. The device rises vertically, eventually housing the industrial camera 6 and the lighting lamp 7 completely inside the protective cover 3. The flip plate 5 and the bottom opening of the protective cover 3 form a sealed structure, which not only prevents the deposition of metal dust and oil mist on the lens and light source surface, reducing the false detection rate caused by contamination, but also withstands accidental collisions and impacts, avoiding lens displacement or light source damage caused by external forces in traditional devices. In addition, the lifting mechanism of the threaded column 19 driven by the adjustment motor 8 can realize the height adjustment of the industrial camera 6 within the range. Combined with the angle adjustment function of the flip plate 5, the device can adapt to the inspection needs of sheet metal parts of different thicknesses, significantly improving the environmental adaptability and inspection versatility of the equipment.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An image acquisition and illumination device for a sheet metal defect detection system, comprising a housing (1) and an internal thread plate (9), characterized in that: A protective cover (3) is provided on the top of one side of the box (1). A flip plate (5) is provided at the bottom of the box (1). An industrial camera (6) is fixedly installed at the center of the bottom of the flip plate (5). Lighting lamps (7) are fixedly installed on both sides of the bottom of the flip plate (5). An adjustment motor (8) is fixedly installed at the bottom of the box (1). A threaded column (19) is provided at the upper end of the adjustment motor (8). A transmission box (14) is provided on one side of the flip plate (5). A rotating column (15) is fixedly connected to the center of one side of the flip plate (5). A driven gear (18) is fixedly installed on the surface of the rotating column (15) corresponding to the inside of the transmission box (14). A driving gear (17) is meshed at the lower end of the driven gear (18). A flip motor (16) is fixedly installed on one side of the bottom of the transmission box (14).

2. The image acquisition and illumination device of the sheet metal defect detection system according to claim 1, characterized in that: A connecting column (4) is fixedly connected to the center of one side of the protective cover (3), and one side of the connecting column (4) is fixedly connected to the top position of one side of the box body (1).

3. The image acquisition and illumination device of the sheet metal defect detection system according to claim 1, characterized in that: The top of the threaded column (19) is movably connected to the bearing fixedly installed at the top center inside the housing (1). The regulating motor (8) is fixedly connected to the first output shaft through its top output end. The top of the first output shaft is fixedly connected to the bottom of the threaded column (19) through a coupling.

4. The image acquisition and illumination device of the sheet metal defect detection system according to claim 1, characterized in that: A slider (10) is fixedly installed at the center of one side of the internal thread plate (9). A groove (11) is provided at the top position on one side of the box body (1). One side of the slider (10) extends into the interior of the groove (11) and slides in connection with the inner wall of the groove (11).

5. The image acquisition and illumination device for a sheet metal defect detection system according to claim 1, characterized in that: A vertical groove (12) is provided on the top side of one side of the housing (1), and a connecting plate (13) is fixedly connected to the top and bottom sides of one side of the transmission box (14). One end of each connecting plate (13) extends through the outside of the vertical groove (12) and is fixedly connected to the outer wall of the transmission box (14).

6. The image acquisition and illumination device for a sheet metal defect detection system according to claim 1, characterized in that: One side of the rotating column (15) extends into the interior of the transmission box (14) and is movably connected to a bearing fixedly installed at the center of one side of the transmission box (14). The flipping motor (16) is fixedly connected to a second output shaft through its top output end. The top of the second output shaft extends into the interior of the transmission box (14) and is fixedly connected to the center of the bottom of the drive gear (17).

7. The image acquisition and illumination device for a sheet metal defect detection system according to claim 1, characterized in that: A stabilizing plate is fixedly connected to the bottom of the box (1), and a conveyor (2) is provided on one side of the box (1).

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