Metallic sealing gasket double-sided detection device based on machine vision

Abstract

The utility model discloses a metal sealing gasket double-sided detection device based on machine vision, which comprises a base, an overturning assembly for overturning a metal sealing gasket main body and a detection assembly for detecting the metal sealing gasket main body, and is characterized in that the overturning assembly comprises an arc-shaped clamping plate I, a rotating motor and a square plate; the square plate is fixed to the outer wall of the top of the base, the rotating motor is fixed to the outer wall of one side of the square plate, and the first arc-shaped clamping plate is connected to the output end of the rotating motor through a coupler. According to the utility model, the machine vision technology is integrated, the double-sided high-efficiency detection of the main body of the metal sealing gasket is realized, the visual camera is used for image acquisition and processing, and the defects on the gasket can be accurately identified and positioned by combining a preset image processing algorithm and a defect detection standard; automatic screening of the detected gaskets is achieved, and the detection efficiency and accuracy are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of metal gasket inspection technology, and in particular to a double-sided inspection device for metal gaskets based on machine vision. Background Technology

[0002] In industrial production, metal gaskets are an important sealing element widely used in various mechanical equipment and pipeline systems. Their quality directly affects the sealing performance and operational safety of the equipment. During the production process, metal gaskets may develop various defects, such as cracks, pores, and inclusions, due to the influence of various factors such as materials, processes, and environment. These defects will seriously affect the sealing effect and service life of the gaskets. Therefore, quality inspection of metal gaskets is an important means to ensure their quality.

[0003] With the rapid development of machine vision technology, more and more fields are beginning to apply machine vision for quality inspection, and the inspection of metal gaskets is no exception. Machine vision technology can achieve automated and high-precision inspection of metal gaskets through image acquisition, processing and analysis.

[0004] However, traditional machine vision inspection devices still have some shortcomings for double-sided inspection of metal gaskets. Due to the structural characteristics of metal gaskets, both sides need to be inspected, but traditional inspection devices can often only inspect one side. The gasket needs to be manually flipped over before the other side can be inspected, which not only increases the workload of inspection but also reduces the inspection efficiency.

[0005] Therefore, designing a machine vision inspection device capable of performing high-precision double-sided inspection of metal gaskets is of great significance for improving the production quality and inspection efficiency of metal gaskets. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a machine vision-based double-sided inspection device for metal sealing gaskets.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A machine vision-based double-sided inspection device for metal gaskets includes a base and a flipping assembly and an inspection assembly for processing the metal gasket body. The flipping assembly includes an arc-shaped clamping plate, a rotary motor, and a square plate. The square plate is fixed to the top outer wall of the base, and the rotary motor is fixed to one side outer wall of the square plate. The arc-shaped clamping plate is connected to the output end of the rotary motor via a coupling. The flipping assembly also includes an electric telescopic rod, a vertical plate, and an arc-shaped clamping plate. The vertical plate is fixed to the top outer wall of the base, and the electric telescopic rod is fixed to one side outer wall of the vertical plate. The arc-shaped clamping plate is movably connected to the output end of the electric telescopic rod via a rotating shaft. A lifting track assembly for guiding the metal gasket body is installed on the top outer wall of the base.

[0009] As a further embodiment of this utility model: the lifting track assembly includes a second limiting plate, a U-shaped frame and a second electric telescopic rod. The second electric telescopic rod is fixed to the top outer wall of the base, and the U-shaped frame is fixed to the output end of the second electric telescopic rod by a pin. Both sets of second limiting plates are fixed to the top of the U-shaped frame.

[0010] As a further embodiment of this utility model: the outer wall of the top of the base is also equipped with a feeding assembly for storing the metal sealing gasket bodies. The feeding assembly includes a placement cylinder and support rods. Both support rods are fixed to the outer wall of the top of the base, and the placement cylinder is welded between the two support rods. Multiple metal sealing gasket bodies are stacked on the inner wall of the placement cylinder, and a limit plate is welded to the inner wall of one side of each of the two support rods.

[0011] As a further embodiment of this utility model: the detection component includes an extension plate and a vision camera, the extension plate is welded to the outer circumference of the placement cylinder, and the vision camera is fixed to the bottom outer wall of the extension plate.

[0012] As a further embodiment of this utility model: a screening assembly for screening the metal sealing gasket body is fixed on the top outer wall of the base. The screening assembly includes a screening ramp and a partition. The screening ramp is fixed to the top outer wall of the base, and the partition is welded to the center of the top of the screening ramp.

[0013] As a further improvement of this utility model: an intermediate plate is welded to the inclined surface of the screening platform, and a servo motor is fixed to the top of the intermediate plate, and the output end of the servo motor is connected to a guide plate through a coupling.

[0014] As a further embodiment of this utility model: a pushing assembly for pushing the metal sealing gasket body is installed on the top of the screening inclined table. The pushing assembly includes a mounting plate and a sliding rod. The mounting plate is fixed to the outer wall of the top of the screening inclined table, and the sliding rod is fixed to the outer wall of one side of the mounting plate. A transverse plate is movably connected to the outer wall of the sliding rod, and a pushing plate is welded to the bottom outer wall of the transverse plate.

[0015] As a further embodiment of this utility model: a drive motor is fixed to one side of the outer wall of the mounting plate, and the output end of the drive motor is connected to a threaded rod through a coupling, and the threaded rod and the transverse plate are threadedly connected.

[0016] As a further improvement of this utility model, a controller is fixed to the top outer wall of the base.

[0017] Compared with the prior art, this utility model provides a machine vision-based double-sided inspection device for metal sealing gaskets, which has the following advantages:

[0018] 1. By integrating machine vision technology, efficient double-sided inspection of the main body of metal sealing gaskets is achieved. Using a vision camera for image acquisition and processing, combined with preset image processing algorithms and defect detection standards, defects on the gaskets can be accurately identified and located. By adding screening and pushing components, automated screening of the gaskets after inspection is achieved, effectively improving inspection efficiency and accuracy.

[0019] 2. Both the inner walls of the arc-shaped clamping plate 1 and the arc-shaped clamping plate 2 are bonded with rubber pads, which effectively protect the metal sealing gasket body from being pinched during the flipping and inspection process. The diameter of the output end of the electric telescopic rod 1 is consistent with the thickness of the arc-shaped clamping plate 2, ensuring that it will not interfere with other gaskets in the placement cylinder during the pushing process.

[0020] 3. The controller precisely controls each component, and users can preset detection parameters according to actual needs, such as image acquisition parameters, image processing algorithms, and defect detection standards, thus realizing flexible adjustment of the detection process.

[0021] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a machine vision-based double-sided inspection device for metal sealing gaskets proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the side structure of a machine vision-based double-sided inspection device for metal sealing gaskets proposed in this utility model.

[0024] Figure 3 A schematic diagram of the loading assembly installation structure of a machine vision-based double-sided inspection device for metal sealing gaskets proposed in this utility model;

[0025] Figure 4 An exploded view of the feeding assembly of a machine vision-based double-sided inspection device for metal sealing gaskets proposed in this utility model.

[0026] Figure 5 This is a schematic diagram of the overall structure of the screening component of a machine vision-based double-sided inspection device for metal sealing gaskets proposed in this utility model.

[0027] Figure 6 This is a partial structural diagram of the screening component of a machine vision-based double-sided inspection device for metal sealing gaskets proposed in this utility model.

[0028] Figure 7 This is a schematic diagram of the flipping component structure of a machine vision-based double-sided detection device for metal sealing gaskets proposed in this utility model.

[0029] In the diagram: 1. Base; 2. Electric telescopic rod 1; 3. Limiting plate; 4. Placement cylinder; 5. Extension plate; 6. Vision camera; 7. Mounting plate; 8. Support rod; 9. Controller; 10. Screening inclined table; 11. Partition plate; 12. Limiting plate 2; 13. Horizontal moving plate; 14. Vertical plate; 15. Metal sealing gasket body; 16. Sliding rod; 17. Intermediate plate; 18. Servo motor; 19. Drive motor; 20. Guide plate; 21. Threaded rod; 22. Pushing plate; 23. Arc-shaped clamping plate 1; 24. Arc-shaped clamping plate 2; 25. Rotary motor; 26. Square plate; 27. U-shaped frame; 28. Electric telescopic rod 2. Detailed Implementation

[0030] 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.

[0031] Example 1

[0032] A machine vision-based double-sided inspection device for metal sealing gaskets, such as Figures 1 to 7 As shown, the system includes a base 1, a flipping assembly for flipping the metal gasket body 15, and a detection assembly for detecting the metal gasket body 15. The flipping assembly includes an arc-shaped clamping plate 23, a rotary motor 25, and a square plate 26. The square plate 26 is fixed to the top outer wall of the base 1 by bolts, and the rotary motor 25 is fixed to one side outer wall of the square plate 26 by bolts. The arc-shaped clamping plate 23 is connected to the output end of the rotary motor 25 by a coupling. The flipping assembly also includes an electric telescopic rod 2, a vertical plate 14, and an arc-shaped clamping plate 24. The vertical plate 14 is fixed to the top outer wall of the base 1 by bolts, and the electric telescopic rod 2 is fixed to one side outer wall of the vertical plate 14 by bolts. The arc-shaped clamping plate 24 is rotatably connected to the output end of the electric telescopic rod 2 by a rotating shaft. A lifting track assembly for guiding the metal gasket body 15 is installed on the top outer wall of the base 1.

[0033] The lifting track assembly supports the metal sealing gasket body 15. The electric telescopic rod 2 drives the arc-shaped clamp 24 to move laterally. When the arc-shaped clamp 24 and the outer circumference of the metal sealing gasket body 15 are in contact, the metal sealing gasket body 15 placed on the lifting track assembly is pushed. The lifting track assembly guides the movement path of the metal sealing gasket body 15. When the side of the metal sealing gasket body 15 away from the arc-shaped clamp 24 moves to be in contact with the inner wall of the arc-shaped clamp 23, the electric telescopic rod 2 fixes the metal sealing gasket body 15 between the arc-shaped clamp 23 and the arc-shaped clamp 24. The detection component can detect the upper surface of the metal sealing gasket body 15. After the upper surface of the metal sealing gasket body 15 is detected, the detection is completed. As the lifting track assembly moves downward and detaches from the bottom of the metal sealing gasket body 15, the rotating motor 25 drives the arc-shaped clamping plate 23 to rotate. Because the metal sealing gasket body 15 is fixed between the arc-shaped clamping plate 23 and the arc-shaped clamping plate 24, the metal sealing gasket body 15 and the arc-shaped clamping plate 24 can rotate synchronously to flip over. In this embodiment, rubber pads are adhered to the inner walls of both the arc-shaped clamping plate 23 and the arc-shaped clamping plate 24 to protect the metal sealing gasket body 15 from pinching. After the metal sealing gasket body 15 flips over, the lifting track assembly moves upward again to support the metal sealing gasket body 15. The detection component can then be used to detect the other side of the metal sealing gasket body 15, achieving double-sided detection of the metal sealing gasket body 15.

[0034] The lifting track assembly includes a second limiting plate 12, a U-shaped frame 27, and a second electric telescopic rod 28. The second electric telescopic rod 28 is fixed to the top outer wall of the base 1 by bolts, and the U-shaped frame 27 is fixed to the output end of the second electric telescopic rod 28 by pins. Both sets of second limiting plates 12 are fixed to the top of the U-shaped frame 27 by bolts.

[0035] Two sets of limiting plates 12 can support the metal sealing gasket body 15, and the electric telescopic rod 28 can control the lifting and lowering of the limiting plates 12 and the U-shaped frame 27.

[0036] The outer wall of the top of the base 1 is also equipped with a feeding assembly for storing the metal sealing gasket body 15. The feeding assembly includes a placement cylinder 4 and a support rod 8. Both support rods 8 are fixed to the outer wall of the top of the base 1 by bolts, and the placement cylinder 4 is welded between the two support rods 8. Multiple metal sealing gasket bodies 15 are stacked on the inner wall of the placement cylinder 4, and a limit plate 3 is welded to one side of the inner wall of both support rods 8.

[0037] To improve the feeding rate of the metal sealing gasket body 15, multiple metal sealing gasket bodies 15 to be tested are stacked sequentially inside the placement cylinder 4 before testing. The limiting plate 3 can support the bottom metal sealing gasket body 15. Before stacking, the electric telescopic rod 2 drives the arc-shaped clamping plate 24 to move behind the placement cylinder 4. When the metal sealing gasket body 15 moves above the limiting plate 3 under its own gravity, the electric telescopic rod 2 drives the arc-shaped clamping plate 24 to push the bottom metal sealing gasket body 15, thereby moving the metal sealing gasket body 15 towards the arc-shaped clamping plate 23. In this embodiment, the diameter of the output end of the electric telescopic rod 2 and the thickness of the arc-shaped clamping plate 24 are consistent, so that when the electric telescopic rod 2 drives the arc-shaped clamping plate 24 to move laterally, the output end of the electric telescopic rod 2 supports the bottom metal sealing gasket body 15 in the placement cylinder 4 to prevent it from falling.

[0038] The detection assembly includes an extension plate 5 and a vision camera 6. The extension plate 5 is welded to the outer circumference of the placement cylinder 4, and the vision camera 6 is fixed to the bottom outer wall of the extension plate 5 by bolts.

[0039] The vision camera 6 can be used to perform double-sided inspection of the metal sealing gasket body 15. The inspection steps are as follows: the vision camera 6 acquires images and transmits the images of the metal sealing gasket body 15 to a computer. The acquired images are processed using image processing software, including image enhancement, filtering, and edge detection, to improve the image quality and clarity. Image processing algorithms are applied to identify and locate defects on the metal sealing gasket body 15, such as finding circular features to confirm the existence of the metal sealing gasket body 15 or analyzing texture and shape to detect defects. According to preset defect detection standards, the processed images are used for defect identification. If a defect is detected, it is marked and the type and location of the defect are recorded. If no defect is detected, the metal sealing gasket body 15 is confirmed as a qualified product. The method of using the vision camera 6 to detect workpiece defects is existing technology and will not be elaborated on here.

[0040] The controller 9 is fixed to the top outer wall of the base 1 by bolts;

[0041] The controller 9 can control the electric telescopic pole 2, the rotary motor 25, and the vision camera 6.

[0042] Working Principle: Multiple metal gasket bodies 15 to be inspected are stacked sequentially inside the placement cylinder 4. The bottom metal gasket body 15 is supported by the limiting plate 3. Before starting the device, the detection parameters, including image acquisition parameters, image processing algorithms, and defect detection standards, are preset by the controller 9. The electric telescopic rod 2 drives the arc-shaped clamping plate 24 to move behind the placement cylinder 4 to prepare to receive the metal gasket bodies 15. When the metal gasket body 15 moves above the limiting plate 3 under its own weight, the electric telescopic rod 2 drives the arc-shaped clamping plate 24 to move forward and push the bottom metal gasket body 15. The diameter of the output end of the electric telescopic rod 2 and the thickness of the arc-shaped clamping plate 24 are consistent to ensure that there is no interference with other metal gasket bodies 15 in the placement cylinder 4 during the pushing process. The metal gasket body 15 is pushed onto the lifting track assembly, which remains in place to provide a stable support platform for the metal gasket body 15. The vision camera 6 acquires images of the metal gasket body. The image of the upper surface of the metal gasket 15 is transmitted to the computer. The computer uses image processing software to process the acquired image, including image enhancement, filtering, edge detection, and other steps, to improve image quality and clarity. Appropriate image processing algorithms are applied to identify and locate defects on the metal gasket body 15, and defects are identified according to preset defect detection standards. If a defect is detected, it is marked and the type and location of the defect are recorded. If no defect is detected, the upper surface of the metal gasket body 15 is confirmed to be a qualified product. The lifting track assembly moves down and disengages from the bottom of the metal gasket body 15. The rotary motor 25 drives the arc-shaped clamp 23 to rotate 180 degrees. Since the metal gasket body 15 is fixed between the arc-shaped clamp 23 and the arc-shaped clamp 24, it will also rotate synchronously to flip over. After flipping over, the lifting track assembly moves up again to support the metal gasket body 15 and detects the lower surface of the metal gasket body 15. If the lower surface is also qualified, the metal gasket body 15 is confirmed to be a double-sided qualified product.

[0043] Example 2

[0044] A machine vision-based double-sided inspection device for metal gaskets, designed to facilitate the screening of the inspected metal gasket body 15, such as... Figures 1 to 7As shown, this embodiment makes the following additions based on embodiment 1: A screening assembly for screening the metal sealing gasket body 15 is fixed on the top outer wall of the base 1. The screening assembly includes a screening ramp 10 and a partition plate 11. The screening ramp 10 is fixed to the top outer wall of the base 1 by bolts, and the partition plate 11 is welded to the center of the top of the screening ramp 10. A pushing assembly for pushing the metal sealing gasket body 15 is installed on the top of the screening ramp 10. An intermediate plate 17 is welded to the inclined surface of the screening ramp 10, and a servo motor 18 is fixed to the top of the intermediate plate 17 by bolts. The output end of the servo motor 18 is connected to a guide plate 20 through a coupling.

[0045] To facilitate the screening of qualified and unqualified metal gasket bodies 15, after the metal gasket body 15 has passed the inspection, the electric telescopic rod 28 drives the limiting plate 12 to move upward until one end of the limiting plate 12 is flush with the top of the screening ramp 10. The pushing component can then push the metal gasket body 15 within the limiting plate 12. During the pushing process, the servo motor 18 drives the guide plate 20 to rotate. The partition plate 11 and the intermediate plate 17 divide the screening ramp 10 into two areas, left and right, which are respectively aligned. The qualified and unqualified metal gasket bodies 15 are collected. When the metal gasket body 15 is qualified, the servo motor 18 drives the guide plate 20 to rotate to one side. When the metal gasket body 15 is unqualified, the servo motor 18 drives the guide plate 20 to rotate to the other side. The guide plate 20 guides the metal gasket body 15 along the path of sliding down the inclined plane of the screening platform 10. According to whether the metal gasket body 15 is qualified or not, the metal gasket body 15 is guided to the corresponding area to achieve screening of the metal gasket body 15.

[0046] The pushing assembly includes a mounting plate 7 and a sliding rod 16. The mounting plate 7 is fixed to the top outer wall of the screening inclined table 10 by bolts, and the sliding rod 16 is fixed to one side outer wall of the mounting plate 7 by bolts. The transverse plate 13 is slidably connected to the outer wall of the sliding rod 16, and a pushing plate 22 is welded to the bottom outer wall of the transverse plate 13. A drive motor 19 is fixed to one side outer wall of the mounting plate 7 by bolts, and the output end of the drive motor 19 is connected to a threaded rod 21 through a coupling. The threaded rod 21 and the transverse plate 13 are threadedly connected.

[0047] When the drive motor 19 drives the threaded rod 21 to rotate, the transverse plate 13 and the push plate 22 move laterally under the guidance of the slide rod 16. During the movement, the push plate 22 pushes the metal sealing gasket body 15 on the limit plate 2 12, so that the metal sealing gasket body 15 eventually slides down the inclined plane of the screening platform 10 for screening.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A machine vision-based double-sided detection device for metal sealing gaskets, comprising a base (1) and a turnover assembly and a detection assembly for processing a metal sealing gasket body (15), characterized in that, The turnover assembly includes an arc-shaped clamping plate 1 (23), a rotary motor 25 and a square plate 26, the square plate 26 is fixed to the outer wall of the top of the base 1, and the rotary motor 25 is fixed to the outer wall of one side of the square plate 26, the arc-shaped clamping plate 1 (23) is connected to the output end of the rotary motor 25 through a shaft coupling, the turnover assembly further includes an electric telescopic rod 1 (2), a vertical plate 14 and an arc-shaped clamping plate 2 (24), the vertical plate 14 is fixed to the outer wall of the top of the base 1, and the electric telescopic rod 1 (2) is fixed to the outer wall of one side of the vertical plate 14, and the arc-shaped clamping plate 2 (24) is movably connected to the output end of the electric telescopic rod 1 (2) through a rotating shaft, and the outer wall of the top of the base 1 is provided with a lifting track assembly for guiding the metal sealing gasket body 15.

2. The double-sided detection device for metal sealing gaskets based on machine vision according to claim 1, characterized in that, The lifting track assembly includes a limiting plate 2 (12), a U-shaped frame 27 and an electric telescopic rod 2 (28), the electric telescopic rod 2 (28) is fixed to the outer wall of the top of the base 1, and the U-shaped frame 27 is fixed to the output end of the electric telescopic rod 2 (28) through a pin, and two groups of limiting plates 2 (12) are both fixed to the top of the U-shaped frame 27.

3. The machine vision-based double-sided detection device for metal sealing gaskets according to claim 2, wherein, The outer wall of the top of the base 1 is also provided with a feeding assembly for storing the metal sealing gasket body 15, the feeding assembly includes a placing cylinder 4 and a supporting rod 8, two supporting rods 8 are both fixed to the outer wall of the top of the base 1, and the placing cylinder 4 is welded between the two supporting rods 8, a plurality of metal sealing gasket bodies 15 are stacked on the inner wall of the placing cylinder 4, and limiting plates 3 are welded on the inner wall of one side of the two supporting rods 8.

4. The machine vision-based double-sided detection device for metal sealing gaskets according to claim 3, wherein, The detection assembly includes an extension plate 5 and a visual camera 6, the extension plate 5 is welded to the circumferential outer wall of the placing cylinder 4, and the visual camera 6 is fixed to the outer wall of the bottom of the extension plate 5.

5. The machine vision-based double-sided detection device for metal sealing gaskets according to claim 4, wherein, The outer wall of the top of the base 1 is fixed with a screening assembly for screening the metal sealing gasket body 15, the screening assembly includes a screening inclined table 10 and a partition plate 11, the screening inclined table 10 is fixed to the outer wall of the top of the base 1, and the partition plate 11 is welded to the top center of the screening inclined table 10.

6. The machine vision-based double-sided detection device for metal sealing gaskets according to claim 5, wherein, The intermediate plate 17 is welded to the inclined surface of the screening inclined table 10, the top of the intermediate plate 17 is fixed with a servo motor 18, and the output end of the servo motor 18 is connected with a guide plate 20 through a shaft coupling.

7. The machine vision-based double-sided detection device for metal sealing gaskets according to claim 6, wherein, The top of the screening inclined table 10 is provided with a pushing assembly for pushing the metal sealing gasket body 15, the pushing assembly includes a mounting plate 7 and a sliding rod 16, the mounting plate 7 is fixed to the outer wall of the top of the screening inclined table 10, the sliding rod 16 is fixed to the outer wall of one side of the mounting plate 7, the horizontal moving plate 13 is movably connected to the outer wall of the sliding rod 16, and the bottom outer wall of the horizontal moving plate 13 is welded with a pushing plate 22.

8. The machine vision-based double-sided detection device for metal sealing gaskets according to claim 7, wherein, One side outer wall of the mounting plate (7) is fixed with a driving motor (19), and the output end of the driving motor (19) is connected with a threaded rod (21) through a shaft coupling, and the threaded rod (21) and the transverse moving plate (13) are screw-connected.

9. The machine vision-based double-sided detection device for metal sealing gaskets according to claim 8, wherein, The top outer wall of the base (1) is fixed with a controller (9).

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