Equipment for detecting corrosion of fastener on surface of aircraft cabin

Abstract

The utility model belongs to the technical field of visual inspection, and particularly relates to equipment for detecting corrosion of a fastener on the surface of an aircraft cabin, which comprises a visual camera for detecting the surface corrosion of the fastener through a visual inspection technology; the conveying mechanism is used for conveying a fastener to be detected; the picking and conveying device is used for picking the fasteners on the conveying mechanism and conveying the fasteners to the visual camera for visual inspection; the visual camera and the picking and transferring device are arranged side by side and erected above the conveying mechanism, and the picking and transferring device comprises a guide plate, a guide rod, a rotating block and a picking rod. By arranging the picking and transferring device, the 90-degree picking movement effect can be achieved, and the fasteners are continuously picked from the conveying mechanism and transferred to the visual camera; the swing mechanism is arranged and can drive the fastener to swing in all directions after the fastener is picked up, so that the fastener is exposed in the detection range of the visual camera in all directions, and the visual detection range and the detection effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to visual inspection technical field, and specifically refers to an equipment for corrosion detection of fastener on the surface of aircraft cabin. BACKGROUND

[0002] The aircraft is operated in harsh environments such as high temperature, high humidity and high salt fog, and corrosion is prone to occur in the rivet head and its adjacent area, around the fastener, and at the joint of the skin. It is of great significance to quickly, efficiently and accurately detect metal surface corrosion and fatigue damage to take appropriate repair and maintenance. In the prior art, machine vision detection technology is used for metal surface corrosion defect detection, which helps to improve the automation and intelligence level of inspection and maintenance, and improves the detection efficiency and accuracy.

[0003] However, in the detection process, the visual camera is fixedly arranged, and the detection range is limited. Therefore, in order to improve the detection accuracy, each position of the detected part needs to be recognized by the visual camera in all directions. However, the current detection equipment has limited functions, and cannot realize omnidirectional detection in a single operation. Therefore, multiple detections are required to improve the detection accuracy, which reduces the detection efficiency. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides an equipment for corrosion detection of fastener on the surface of aircraft cabin, which has higher detection efficiency and larger detection range than the existing visual detection device.

[0005] The utility model adopts the following technical scheme: the utility model provides an equipment for corrosion detection of fastener on the surface of aircraft cabin, which comprises:

[0006] A visual camera is used for corrosion detection of the fastener surface through visual detection technology.

[0007] A conveying mechanism is used for conveying the fastener to be detected.

[0008] A pickup and delivery device is used for picking up the fastener on the conveying mechanism and delivering it to the visual camera for visual detection.

[0009] The visual camera and the pickup and delivery device are arranged side by side, and both are arranged above the conveying mechanism and parallel to the conveying direction of the conveying mechanism. The pickup and delivery device comprises a guide plate, a guide rod, a rotating block and a pickup rod. The guide plate is provided with a guide groove, which comprises an arc segment, and a horizontal segment and a vertical segment connected to the two sides of the arc segment. One end of the guide rod is rotatably arranged on the guide plate. The other end of the guide rod is provided with a hollow groove. The pickup rod is provided with a sliding head. The sliding head slides through the hollow groove of the guide rod and is slidingly connected in the guide groove. The rotating block is rotatably arranged on the guide plate. The pickup rod passes through the rotating block, and the pickup rod and the rotating block are slidingly connected.

[0010] When the guide rod rotates, the sliding head pushing the pickup rod slides in the guide groove, in the process, the pickup rod is converted from vertical to horizontal, thereby achieving picking up the fastener from the conveying mechanism and transferring to the visual camera;

[0011] The pickup rod is provided with a clamping jaw.

[0012] Further, the pickup transmission device is provided with a driving assembly, the driving assembly comprises a driving rod, a push-pull rack and a connecting gear, the connecting gear is rotatably arranged on a guide plate, the connecting gear and the rotating end of the guide rod share a rotating shaft, a rack sleeve is rotatably arranged on the guide plate, the push-pull rack and the rack sleeve are slidingly connected, the push-pull rack and the connecting gear are engaged, the driving rod is rotatably arranged on the guide plate, the driving rod and the push-pull rack are hingedly connected, and the driving rod is driven by a motor.

[0013] The motor drives the driving rod to rotate, thereby driving the push-pull rack to reciprocatingly push and pull, when the push-pull rack slides in the rack sleeve, the rack sleeve swings back and forth, the push-pull rack drives the connecting gear to reciprocatingly rotate, thereby driving the guide rod to reciprocatingly swing, and thereby driving the sliding head to reciprocatingly move in the guide groove.

[0014] Further, the pickup rod is provided with a swing mechanism, comprising a rotating table, a swing column, a cross sleeve ring and a connecting piece, the connecting piece is rotatably arranged on the rotating table, the connecting piece is obliquely arranged, the swing column is arranged on the connecting piece, the swing column is obliquely and eccentrically arranged relative to the rotating table, the swing column is provided with a connecting shaft, the cross sleeve ring is sleeved outside the swing column, and the cross sleeve ring and the connecting shaft are rotatably connected, the cross sleeve ring is provided with a ring shaft, the swing column is provided with a support plate on both sides, the ring shaft and the support plate are rotatably connected, the axial direction of the ring shaft and the axial direction of the connecting shaft are perpendicular to each other, the swing column is connected with the clamping jaw at the bottom, and the rotating table is provided with a motor connected with the connecting piece.

[0015] After the clamping jaw picks up the fastener, the fastener is driven to the visual camera, the motor drives the connecting piece to rotate, thereby driving the swing column to swing, thereby achieving exposing the fastener in all directions in the detection range of the visual camera.

[0016] The beneficial effects achieved by the above structure are as follows: the scheme provides an equipment for detecting corrosion of fasteners on the surface of an aircraft cabin, the pickup transmission device is arranged to achieve a 90-degree pickup movement effect, the arrangement of the conveying mechanism and the visual camera achieves continuous pickup of the fastener from the conveying mechanism and transmission to the visual camera, the swing mechanism is arranged to drive the fastener to swing in all directions after picking up the fastener, thereby achieving exposure of the fastener in all directions in the detection range of the visual camera, and improving the visual detection range and detection effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic view of the scheme;

[0018] Figure 2 It is the overall structure rear view of the scheme;

[0019] Figure 3 It is the structure schematic view of the pickup transfer device;

[0020] Figure 4 It is the structure schematic view of the guide groove;

[0021] Figure 5 It is the perspective view of the swing mechanism;

[0022] Figure 6 It is the front view of the swing mechanism.

[0023] Wherein, 1, visual camera;2, conveying mechanism;3, pickup transfer device;4, guide plate;5, guide rod;6, rotating block;7, pickup rod;8, guide groove;9, arc segment;10, transverse segment;11, vertical segment;12, hollow groove;13, clamping jaw;14, driving assembly;15, driving rod;16, push-pull rack;17, connecting gear;19, rack sleeve;20, swing mechanism;21, rotating table;22, swing column;23, cross collar;24, connecting piece;25, connecting shaft;26, ring shaft;27, support plate

[0024] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be clearly and completely described in the description of the embodiments of the present application in combination with the drawings, obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments;Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0027] An equipment for corrosion detection of fasteners on the surface of an aircraft cabin, such as Figure 1 , comprising:

[0028] a visual camera 1 for detecting corrosion on the surface of the fasteners through visual detection technology;

[0029] a conveying mechanism 2 for conveying fasteners to be detected, which can be a conveying belt;

[0030] a pickup and delivery device 3 for picking up fasteners on the conveying mechanism 2 and delivering them to the visual camera 1 for visual detection;

[0031] The visual camera 1 and the pickup and delivery device 3 are arranged side by side and both are erected above the conveying mechanism 2 and parallel to the conveying direction of the conveying mechanism 2; as Figure 3 The pickup and delivery device 3 comprises a guide plate 4, a guide rod 5, a rotating block 6 and a pickup rod 7, the guide plate 4 is provided with a guide groove 8, as Figure 6 The guide groove 8 comprises an arc segment 9 and transverse segments 10 and vertical segments 11 connected to both sides of the arc segment 9, one end of the guide rod 5 is rotatably arranged on the guide plate 4, the other end of the guide rod 5 is provided with a hollow groove 12, the pickup rod 7 is provided with a sliding head which slides through the hollow groove 12 of the guide rod 5 and is slidingly connected in the guide groove 8, the rotating block 6 is rotatably arranged on the guide plate 4, the pickup rod 7 passes through the rotating block 6, and the pickup rod 7 and the rotating block 6 are slidingly connected.

[0032] When the guide rod 5 rotates, the sliding head of the pickup rod 7 slides in the guide groove 8, during which the pickup rod 7 is converted from vertical to horizontal, thereby picking up the fasteners from the conveying mechanism 2 and delivering them to the visual camera 1;

[0033] The pickup rod 7 is provided with a clamping jaw 13.

[0034] Among them, as Figure 2 The pickup and delivery device 3 is provided with a driving assembly 14, the driving assembly 14 comprises a driving rod 15, a push-pull rack 16 and a connecting gear 17, the connecting gear 17 is rotatably arranged on the guide plate 4, the connecting gear 17 and the rotating end of the guide rod 5 share a rotating shaft, the guide plate 4 is rotatably provided with a rack sleeve 19, the push-pull rack 16 and the rack sleeve 19 are slidingly connected, the push-pull rack 16 and the connecting gear 17 are engaged, the driving rod 15 is rotatably arranged on the guide plate 4, the driving rod 15 and the push-pull rack 16 are hingedly connected, and the driving rod 15 is driven by a motor.

[0035] The motor drives the driving rod 15 to rotate, and then drives the push-pull rack 16 to reciprocatingly push and pull, when the push-pull rack 16 reciprocatingly slides in the rack sleeve 19, the rack sleeve 19 is driven to swing back and forth, the push-pull rack 16 drives the connecting gear 17 to reciprocatingly rotate, and then drives the guide rod 5 to reciprocatingly swing, and then drives the sliding head to reciprocatingly move in the guide groove 8.

[0036] As Figures 4-5 , the picking rod 7 is provided with a swinging mechanism 20, including a rotating table 21, a swinging column 22, a cross sleeve ring 23 and a connecting piece 24, the connecting piece 24 is rotatably arranged on the rotating table 21, the connecting piece 24 is obliquely arranged, the swinging column 22 is arranged on the connecting piece 24, the swinging column 22 is obliquely and eccentrically arranged relative to the rotating table 21, the swinging column 22 is provided with a connecting shaft 25, the cross sleeve ring 23 is sleeved outside the swinging column 22, and the cross sleeve ring 23 and the connecting shaft 25 are rotatably connected, the cross sleeve ring 23 is provided with a ring shaft 26, the swinging column 22 is provided with a support plate 27 on both sides, the ring shaft 26 and the support plate 27 are rotatably connected, the axial direction of the ring shaft 26 and the axial direction of the connecting shaft 25 are perpendicular to each other, the swinging column 22 is connected with the clamping jaw 13 at the bottom, and the rotating table 21 is provided with a motor connected with the connecting piece 24.

[0037] After the clamping jaw 13 clamps the fastener and drives the fastener to the visual camera 1, the motor drives the connecting piece 24 to rotate, and then drives the swinging column 22 to swing, so that the fastener is exposed in all directions in the detection range of the visual camera 1.

[0038] In an embodiment, the driving rod 15 and the conveying mechanism 2 are drivingly connected, so that the conveying mechanism 2 and the driving and picking transmission device 3 are synchronized to achieve the effect of continuous picking and placing of the fastener.

[0039] Specifically, the conveying mechanism 2 continuously conveys the fastener, the driving rod 15 rotates, and then drives the push-pull rack 16 to reciprocatingly push and pull, when the push-pull rack 16 reciprocatingly slides in the rack sleeve 19, the rack sleeve 19 is driven to swing back and forth, the push-pull rack 16 drives the connecting gear 17 to reciprocatingly rotate, and then drives the guide rod 5 to reciprocatingly swing, and then drives the sliding head to reciprocatingly move in the guide groove 8, in the process, the picking rod 7 is guided by the guide groove 8 and the hollow groove 12 to change from vertical to horizontal, and then the fastener is picked from the conveying mechanism 2 and delivered to the visual camera 1, when the fastener is delivered to the detection camera, the motor drives the connecting piece 24 to rotate, and then drives the swinging column 22 to swing, so that the fastener is exposed in all directions in the detection range of the visual camera 1, and the detection effect is improved.

[0040] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A device for detecting corrosion of fasteners on the surface of an aircraft cabin, characterized in that: A vision camera (1) is used to detect the corrosion of fasteners; a conveying mechanism (2) is used to convey the fasteners to be inspected; a pickup and transfer device (3) is used to pick up the fasteners on the conveying mechanism (2) and transfer them to the vision camera (1) for visual inspection; the vision camera (1) and the pickup and transfer device (3) are arranged side by side, and both are mounted above the conveying mechanism (2) and parallel to the conveying direction of the conveying mechanism (2).

2. The equipment for detecting corrosion of fasteners on the surface of an aircraft cabin according to claim 1, characterized in that: The pickup and transfer device (3) includes a guide plate (4), a guide rod (5), a rotating block (6), and a pickup rod (7). The guide plate (4) is provided with a guide groove (8). One end of the guide rod (5) is rotatably mounted on the guide plate (4), and the other end of the guide rod (5) is provided with a hollow groove (12). The pickup rod (7) is provided with a slider. The slider slides through the hollow groove (12) of the guide rod (5) and is slidably connected in the guide groove (8). The rotating block (6) is rotatably mounted on the guide plate (4). The pickup rod (7) passes through the rotating block (6). The pickup rod (7) and the rotating block (6) are slidably connected. The pickup rod (7) is provided with a gripper (13).

3. The equipment for detecting corrosion of fasteners on the surface of an aircraft cabin according to claim 2, characterized in that: The pickup and transfer device (3) is provided with a drive assembly (14), which includes a drive rod (15), a push-pull rack (16), and a connecting gear (17). The connecting gear (17) is rotatably mounted on the guide plate (4). The rotating ends of the connecting gear (17) and the guide rod (5) share a common axis. A rack sleeve (19) is rotatably mounted on the guide plate (4). The push-pull rack (16) and the rack sleeve (19) are slidably connected. The push-pull rack (16) and the connecting gear (17) are meshed. The drive rod (15) is rotatably mounted on the guide plate (4). The drive rod (15) and the push-pull rack (16) are hinged. The drive rod (15) is driven by a motor.

4. The equipment for detecting corrosion of fasteners on the surface of an aircraft cabin according to claim 2, characterized in that: The pickup rod (7) is provided with a swing mechanism (20), including a rotating platform (21), a swing column (22), a cross collar (23), and a connecting member (24). The connecting member (24) is rotatably mounted on the rotating platform (21) and is inclined. The swing column (22) is mounted on the connecting member (24) and is inclined and eccentrically mounted relative to the rotating platform (21). The swing column (22) is provided with a connecting shaft (25), and the cross collar (23) is fitted with a connecting shaft (25). Located outside the swing column (22), and the cross collar (23) and the connecting shaft (25) are rotatably connected. The cross collar (23) is provided with a ring shaft (26). The swing column (22) is provided with support plates (27) on both sides. The ring shaft (26) and the support plate (27) are rotatably connected. The axial direction of the ring shaft (26) is different from that of the connecting shaft (25). The bottom of the swing column (22) is connected to a gripper (13). The rotating table (21) is provided with a motor connected to the connecting piece (24).

5. The equipment for detecting corrosion of fasteners on the surface of an aircraft cabin according to claim 2, characterized in that: The guide groove (8) includes an arc-shaped section (9) and a horizontal section (10) and a vertical section (11) connected to both sides of the arc-shaped section (9).

6. The device for detecting corrosion of fasteners on the surface of an aircraft cabin according to claim 4, characterized in that: The axial direction of the ring shaft (26) and the axial direction of the connecting shaft (25) are perpendicular to each other.

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