An optical detection device for large-diameter sealing rings based on external support rotation

Abstract

The utility model relates to optical detection device technical field, concretely is a kind of big diameter sealing ring optical detection device based on outer support rotation, including machine table, detection component for carrying out optical detection to sealing ring is arranged on machine table, fixed seat and slidingly installed movable seat are fixedly installed on machine table, movable seat is driven to move horizontally on machine table by first drive source, one root of rotation shaft is rotatably arranged on fixed seat and movable seat respectively, outer support wheel for supporting sealing ring from inside is fixed on each rotation shaft respectively, cooperation is carried out through linkage structure between two rotation shafts, so that one root of rotation shaft will drive another root of rotation shaft synchronous rotation when rotating, rotation shaft is driven to rotate by second drive source, the utility model can quickly adapt to big diameter sealing ring of different diameter specifications, and it is strong in versatility, can also carry out dead angle-free, high-definition image acquisition to the whole outer circumferential surface of sealing ring, significantly improve the integrity and accuracy of defect detection.

Description

Technical Field

[0001] This utility model relates to the field of optical inspection device technology, specifically an optical inspection device for a large-diameter sealing ring based on external support rotation. Background Technology

[0002] In the industrial manufacturing sector, large-diameter sealing rings are key components that ensure the sealing performance of heavy equipment, aerospace devices, and high-end hydraulic systems. The appearance quality of these rings, such as the presence of scratches, dents, burrs, and impurities, directly affects the sealing reliability and service life of the equipment. Therefore, comprehensive and efficient appearance quality inspection of the sealing rings must be carried out during the production process.

[0003] Currently, automated optical inspection of large-diameter sealing rings still faces several technical challenges. While the clamping and stretching method, which uses a clamping mechanism to hold and unfold the sealing ring, allows for observation of certain areas, the clamping point itself creates a significant blind spot, preventing effective inspection of that area and impacting the overall assessment of the sealing ring's surface quality. Common fixed internal support mechanisms, although capable of positioning and rotating the sealing ring, typically have non-adjustable support spacing, making them difficult to adapt to different sealing ring sizes and lacking versatility. Currently, many companies still rely on manual visual inspection, a method that is inefficient, labor-intensive, and whose results are significantly influenced by subjective factors, hindering the unified management and traceability of quality data.

[0004] To address these issues, we provide an optical inspection device for large-diameter sealing rings based on external support rotation. Utility Model Content

[0005] The purpose of this invention is to provide an optical inspection device for large-diameter sealing rings based on external support rotation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An optical inspection device for large-diameter sealing rings based on external support rotation includes a machine base. The machine base is equipped with an inspection component for optically inspecting the sealing rings. A fixed base is fixedly mounted on the machine base, and a movable base is slidably mounted thereon. The movable base is driven to move horizontally on the machine base by a first drive source. A rotating shaft is rotatably mounted on each of the fixed and movable bases. Each rotating shaft is fixed with an external support wheel for internally supporting the sealing ring. The two rotating shafts are connected by a linkage structure, such that when one rotating shaft rotates, it drives the other rotating shaft to rotate synchronously. The rotating shafts are driven to rotate by a second drive source.

[0008] An optical inspection device for large-diameter sealing rings based on external support rotation, as described above: the inspection component includes a bracket fixed on the machine base, and an industrial camera is fixed on the bracket.

[0009] As described above, a large-diameter sealing ring optical inspection device based on external support rotation: the first driving source includes a cylinder fixed on the machine base, the output end of the cylinder is provided with a piston push rod, the piston push rod is fixed to the movable seat, and the machine base is provided with a limiting component for the movement of the movable seat.

[0010] As described above, a large-diameter sealing ring optical inspection device based on external support rotation includes two guide rods fixed on the machine base. The movable seat has a through hole with an inner diameter that matches the outer diameter of the guide rod. The guide rod is movably inserted into the through hole.

[0011] As described above, a large-diameter sealing ring optical inspection device based on external support rotation: the second driving source includes a stepper motor fixed on a fixed base, and a rotating shaft located on the fixed base is installed at the output end of the stepper motor and driven to rotate by the stepper motor.

[0012] An optical inspection device for large-diameter sealing rings based on external support rotation, as described above: The linkage structure includes a transmission sleeve rotatably mounted on the machine base and a driven shaft rotatably mounted on a movable seat. The transmission sleeve and the rotating shaft on the fixed seat are driven by a first gear mechanism. When the rotating shaft on the fixed seat rotates, the transmission sleeve rotates synchronously. The driven shaft and the rotating shaft on the movable seat are driven by a second gear mechanism. When the driven shaft rotates, the rotating shaft on the movable seat rotates synchronously. A keyway is provided on the inner wall of the transmission sleeve, and a flat key is fixed on the outer wall of the driven shaft. The driven shaft is movably inserted into the transmission sleeve, and the flat key is movably embedded and engaged in the keyway.

[0013] As described above, a large-diameter sealing ring optical detection device based on external support rotation: the first gear mechanism includes a first bevel gear ring fixed on a rotating shaft on a fixed base and a first bevel gear fixed on a transmission sleeve, wherein the first bevel gear ring meshes with the first bevel gear;

[0014] The second gear mechanism includes a second bevel gear ring fixed on a rotating shaft on a movable seat and a second bevel gear fixed on a driven shaft, wherein the second bevel gear ring meshes with the second bevel gear.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, a fixed seat is fixedly installed on the machine base and a movable seat is slidably installed. External support wheels are rotatably arranged on the fixed seat and the movable seat respectively. After the sealing ring to be tested is sleeved on the two external support wheels, it is optically detected by the detection component. Since the movable seat is slidably installed on the machine base, the distance between it and the fixed seat is adjustable, so the support distance between the two sets of external support wheels can be flexibly adjusted. Thus, this device can quickly adapt to large-diameter sealing rings of different diameter specifications and has strong versatility.

[0016] In addition, the two rotating shafts of this invention can rotate synchronously, and the two sets of outer support wheels can be supported from inside the sealing ring and rotate synchronously. This achieves stable and damage-free support for the sealing ring while driving it to rotate smoothly and change position. It avoids the blind spots in detection caused by the clamping point obstruction in traditional clamping methods, enabling the industrial camera to acquire high-definition images of the entire outer circumference surface of the sealing ring without blind spots, which significantly improves the completeness and accuracy of defect detection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an optical detection device for a large-diameter sealing ring based on external support rotation.

[0018] Figure 2 for Figure 1 A schematic diagram of the decomposed part of the structure.

[0019] Figure 3 for Figure 2 A structural diagram from another perspective.

[0020] Figure 4 for Figure 2 A schematic diagram of the decomposed part of the structure.

[0021] Figure 5 for Figure 4 A schematic diagram of the decomposed part of the structure.

[0022] In the diagram: 1. Machine base; 2. Support; 3. Industrial camera; 4. Fixed base; 5. Movable base; 6. Rotating shaft; 7. Outer support wheel; 8. Cylinder; 9. Piston push rod; 10. Guide rod; 11. Stepper motor; 12. Transmission sleeve; 13. Driven shaft; 14. Keyway; 15. Flat key; 16. First bevel gear ring; 17. First bevel gear; 18. Second bevel gear ring; 19. Second bevel gear. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 As an embodiment of this utility model, an optical inspection device for a large-diameter sealing ring based on external support rotation includes a machine base 1. The machine base 1 is equipped with an inspection component for optical inspection of the sealing ring. A fixed seat 4 is fixedly installed on the machine base 1 and a movable seat 5 is slidably installed on the machine base 1. The movable seat 5 is driven to move horizontally on the machine base 1 by a first drive source. A rotating shaft 6 is rotatably installed on the fixed seat 4 and the movable seat 5 respectively. An external support wheel 7 for supporting the sealing ring from the inside is fixed on each rotating shaft 6. The two rotating shafts 6 are connected by a linkage structure so that when one rotating shaft 6 rotates, it will drive the other rotating shaft 6 to rotate synchronously. The rotating shafts 6 are driven to rotate by a second drive source.

[0025] In this embodiment, during use, a fixed base 4 is fixedly installed on the machine base 1 and a movable base 5 is slidably installed. First, the sealing ring to be tested is placed on the two outer support wheels 7 and then optically inspected in conjunction with the detection component. Since the movable base 5 is slidably installed on the machine base 1, the first drive source drives the movable base 5 to move horizontally on the machine base 1, making the distance between it and the fixed base 4 adjustable. This allows for flexible adjustment of the support distance between the two sets of outer support wheels 7 on the fixed base 4 and the movable base 5, thus enabling quick adaptation to large-diameter sealing rings of different diameters. In addition, the two rotating shafts 6 can rotate synchronously, allowing the two sets of outer support wheels 7 to support the sealing ring from inside and rotate synchronously. This achieves stable and damage-free support for the sealing ring while driving it to rotate smoothly and change position, enabling the detection component to acquire high-definition images of the entire outer circumference surface of the sealing ring without blind spots.

[0026] As a further embodiment of this utility model, the detection component includes a bracket 2 fixed on the machine base 1, and an industrial camera 3 is fixed on the bracket 2.

[0027] In this embodiment, the industrial camera 3 is electrically connected to an external power source via a wire, and the industrial camera 3 is able to acquire images of the outer surface of the sealing ring from above the sealing ring.

[0028] As a further embodiment of this utility model, the first driving source includes a cylinder 8 fixed on the machine base 1, and a piston push rod 9 is provided at the output end of the cylinder 8. The piston push rod 9 is fixed to the movable seat 5, and a limiting component is provided on the machine base 1 when the movable seat 5 moves.

[0029] In this embodiment, the end of the piston rod 9 is rigidly connected to the movable seat 5 by means of flange or thread fastening. The cylinder 8 provides the lifting power for the piston rod 9 to extend and retract. The limiting component is used to ensure the smoothness and accuracy of the movement of the movable seat 5.

[0030] As a further embodiment of this utility model, the limiting component includes two guide rods 10 fixed on the machine base 1. The movable seat 5 has a through hole with an inner diameter that matches the outer diameter of the guide rod 10. The guide rod 10 is movably inserted into the through hole.

[0031] In this embodiment, two guide rods 10 are fixedly installed in parallel on the machine base 1 and pass through the movable seat 5. This structure provides high-precision guidance for the horizontal movement of the movable seat 5, effectively preventing it from deflecting or getting stuck during movement, and ensuring that the axes of the two outer support wheels 7 are always aligned, thereby ensuring that the sealing ring is stably supported.

[0032] As a further embodiment of this utility model, the second driving source includes a stepper motor 11 fixed on the fixed base 4, and a rotating shaft 6 located on the fixed base 4 is installed at the output end of the stepper motor 11 and driven to rotate by the stepper motor 11.

[0033] In this embodiment, the stepper motor 11 is electrically connected to an external power source via wires, and the rotating shaft 6 on the fixed base 4 is directly connected to the output shaft of the stepper motor 11 via a coupling, thereby obtaining precise and controllable rotational power.

[0034] As a further embodiment of this utility model, the linkage structure includes a transmission sleeve 12 rotatably mounted on the machine base 1 and a driven shaft 13 rotatably mounted on the movable seat 5. The transmission sleeve 12 and the rotating shaft 6 on the fixed seat 4 are driven by a first gear mechanism. When the rotating shaft 6 on the fixed seat 4 rotates, the transmission sleeve 12 rotates synchronously. The driven shaft 13 and the rotating shaft 6 on the movable seat 5 are driven by a second gear mechanism. When the driven shaft 13 rotates, the rotating shaft 6 on the movable seat 5 rotates synchronously. A keyway 14 is provided on the inner wall of the transmission sleeve 12, and a flat key 15 is fixed on the outer wall of the driven shaft 13. The driven shaft 13 is movably inserted into the transmission sleeve 12, and the flat key 15 is movably embedded and snapped into the keyway 14.

[0035] In this embodiment, the driven shaft 13 is movably inserted into the transmission sleeve 12 and the flat key 15 is movably embedded and snapped into the keyway 14, so that the driven shaft 13 can slide freely axially within the transmission sleeve 12 to adapt to the change in spacing, while transmitting torque without loss, ensuring that the rotation of the two rotating shafts 6 is strictly synchronized.

[0036] As a further embodiment of this utility model, the first gear mechanism includes a first bevel gear ring 16 fixed on a rotating shaft 6 on a fixed base 4 and a first bevel gear 17 fixed on a transmission sleeve 12, wherein the first bevel gear ring 16 meshes with the first bevel gear 17.

[0037] The second gear mechanism includes a second bevel gear ring 18 fixed on a rotating shaft 6 on a movable seat 5 and a second bevel gear 19 fixed on a driven shaft 13, wherein the second bevel gear ring 18 meshes with the second bevel gear 19.

[0038] In this embodiment, when the rotating shaft 6 on the fixed seat 4 rotates, it drives the first bevel gear ring 16 to rotate. When the first bevel gear ring 16 rotates, it drives the first bevel gear 17 to rotate. When the first bevel gear 17 rotates, the transmission sleeve 12 rotates synchronously, and the driven shaft 13 also rotates. When the driven shaft 13 rotates, the second bevel gear 19 will rotate. When the second bevel gear 19 rotates, it drives the second bevel gear ring 18 to rotate, thereby driving the rotating shaft 6 on the movable seat 5 to rotate.

[0039] The working principle of this utility model is as follows: Before testing, based on the inner diameter of the sealing ring, cylinder 8 is activated to drive the movable seat 5 to move along guide rod 10, adjusting the distance between the two outer support wheels 7 to be slightly smaller than the inner diameter of the sealing ring. The sealing ring is then fitted onto the two sets of outer support wheels 7, and the position of the movable seat 5 is finely adjusted again to ensure the sealing ring is properly tightened. Then, stepper motor 11 is activated to drive the rotating shaft 6 on the fixed seat 4 to rotate. This rotational motion is transmitted to the first bevel gear 17 through the first bevel gear ring 16, thereby driving the transmission sleeve 12 to rotate. The transmission sleeve 12 transmits power to the driven shaft 13 through the cooperation of its internal keyway 14 and the flat key 15 on the driven shaft 13. The rotation of the driven shaft 13 then drives the second bevel gear ring 18 to rotate through the second bevel gear 19 on it, ultimately driving the movable seat 5. The two rotating shafts 6 on the upper part rotate synchronously at the same speed and in the same direction. The two rotating shafts 6 drive the two sets of outer support wheels 7 and the sealing ring supported on them to rotate smoothly together. The intermittent rotation of the rotating shafts 6 on the fixed base 4 can realize the intermittent rotation of the sealing ring. At the same time, the industrial camera 3 takes a fixed-point picture of the sealing ring when it is stationary. The sealing ring rotates intermittently to collect a clear image of the entire outer circumference surface of the sealing ring. The image data is transmitted to the image processing system for real-time analysis and defect judgment, and finally realizes efficient, high-precision and blind-spot-free automated optical inspection.

[0040] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A large-diameter sealing ring optical detection device based on external support rotation, comprising a machine table (1), characterized in that, The machine base (1) is equipped with a detection component for optical detection of the sealing ring. The machine base (1) is fixedly installed with a fixed seat (4) and slidably installed with a movable seat (5). The movable seat (5) is driven to move horizontally on the machine base (1) by a first drive source. A rotating shaft (6) is rotatably installed on the fixed seat (4) and the movable seat (5). Each rotating shaft (6) is fixed with an outer support wheel (7) for supporting the sealing ring from the inside. The two rotating shafts (6) are connected by a linkage structure so that when one rotating shaft (6) rotates, it will drive the other rotating shaft (6) to rotate synchronously. The rotating shaft (6) is driven to rotate by a second drive source.

2. The optical detection device based on the rotation of the large-diameter sealing ring with external support according to claim 1, characterized in that, The detection assembly includes a bracket (2) fixed on the machine base (1), and an industrial camera (3) is fixed on the bracket (2).

3. The optical inspection device for a large-diameter sealing ring based on external support rotation according to claim 1, characterized in that, The first driving source includes a cylinder (8) fixed on the machine base (1), and a piston push rod (9) is provided at the output end of the cylinder (8). The piston push rod (9) is fixed to the movable seat (5), and a limiting component is provided on the machine base (1) when the movable seat (5) moves.

4. The optical inspection device for a large-diameter sealing ring based on external support rotation according to claim 3, characterized in that, The limiting component includes two guide rods (10) fixed on the machine base (1). The movable seat (5) has a through hole with an inner diameter that matches the outer diameter of the guide rod (10). The guide rod (10) is movably inserted into the through hole.

5. The optical inspection device for a large-diameter sealing ring based on external support rotation according to claim 1, characterized in that, The second driving source includes a stepper motor (11) fixed on a fixed base (4), and a rotating shaft (6) located on the fixed base (4) is mounted on the output end of the stepper motor (11) and driven to rotate by the stepper motor (11).

6. The optical inspection device for a large-diameter sealing ring based on external support rotation according to claim 1, characterized in that, The linkage structure includes a transmission sleeve (12) rotatably mounted on the machine base (1) and a driven shaft (13) rotatably mounted on the movable seat (5). The transmission sleeve (12) and the rotating shaft (6) on the fixed seat (4) are driven by a first gear mechanism. When the rotating shaft (6) on the fixed seat (4) rotates, the transmission sleeve (12) rotates synchronously. The driven shaft (13) and the rotating shaft (6) on the movable seat (5) are driven by a second gear mechanism. When the driven shaft (13) rotates, the rotating shaft (6) on the movable seat (5) rotates synchronously. The inner wall of the transmission sleeve (12) is provided with a keyway (14). The outer wall of the driven shaft (13) is fixed with a flat key (15). The driven shaft (13) is movably inserted into the transmission sleeve (12) and the flat key (15) is movably embedded and snapped into the keyway (14).

7. The optical inspection device for a large-diameter sealing ring based on external support rotation according to claim 6, characterized in that, The first gear mechanism includes a first bevel gear ring (16) fixed on a rotating shaft (6) on a fixed base (4) and a first bevel gear (17) fixed on a transmission sleeve (12), wherein the first bevel gear ring (16) meshes with the first bevel gear (17); The second gear mechanism includes a second bevel gear ring (18) fixed on a rotating shaft (6) on a movable seat (5) and a second bevel gear (19) fixed on a driven shaft (13), wherein the second bevel gear ring (18) meshes with the second bevel gear (19).

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