Ferrite tile appearance defect detection device

Abstract

The utility model relates to foreign appearance detection and technical field disclose ferrite magnetic tile appearance defect detection equipment, including front detection box and reverse detection box, both are connected through 180 degree turnover mechanism, and the front / reverse detection channel is equipped with conveying belt and visual inspection module, and visual inspection module contains annular arrangement's industrial camera (covers 120 degree visual angle) and dynamic trigger system, and the turnover mechanism adopts the vibration disc type design, utilizes spiral track and barycentric principle to realize magnetic tile automatic turnover, and the sorting mechanism is through pneumatic push rod to reject defective product to the collection box. The equipment realizes full -automatic double -sided detection, and the structure is stable and efficient, reduces manual intervention, and promotes detection accuracy and efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to appearance detection and technical field, specifically is ferrite magnetic tile appearance defect detection equipment. BACKGROUND

[0002] Ferrite magnetic tile as motor core magnetic element, its surface defect (crack, collapse, air hole etc.) directly influence motor performance and life.

[0003] Manual turnover efficiency is low: magnetic tile needs two times detection of front and back, manual turnover time consumption accounts for 60% above in detection cycle, leads to production capacity bottleneck.

[0004] Manual operation is easy to miss detection due to fatigue, and defect miss detection rate is as high as 5%-8%;Mechanical turnover damage risk.

[0005] Existing automatic turnover mechanism (such as pneumatic suction cup, mechanical jaw) is easy to scratch magnetic tile arc surface due to rigid contact, and damage rate is higher, and drum type turnover mechanism relies on mutual collision of magnetic tile, and is easy to cause edge collapse;

[0006] Insufficient visual coverage:

[0007] When single camera vertical shooting, magnetic tile arc side and edge area form shadow due to light refraction, and defect recognition rate is less than 70%;

[0008] Multi-camera layout is not optimized visual angle connection, and there is detection blind area.

[0009] In view of the above problems, the technical scheme designs a ferrite magnetic tile appearance defect detection equipment. UTILITY MODEL CONTENTS

[0010] The utility model aims at providing ferrite magnetic tile appearance defect detection equipment to solve the problems in the above background art.

[0011] To achieve the above object, the utility model provides the following technical scheme:

[0012] Ferrite magnetic tile appearance defect detection equipment, including front detection box and reverse detection box, the front detection box, reverse detection box is respectively provided with the through front detection channel in the inside, the reverse detection channel, the front detection channel and the reverse detection channel are connected through ° turnover mechanism, and the ferrite magnetic tile to be carried out appearance detection moves along the inside front detection channel and carries out front quality detection, and then the front good product is transferred to the reverse detection channel after being turned over through ° turnover mechanism and carries out reverse quality detection;

[0013] The front face conveying belt is internally provided with a front face conveying belt, and the ferrite magnetic tile to be detected is arranged on the front face conveying belt at intervals for transmission.

[0014] The first end of each group of visual detection modules is provided with a dynamic triggering system for real-time monitoring of the moving path of the ferrite magnetic tile and accurate control of the operation of the corresponding visual detection module.

[0015] The output end side of the front face conveying belt and the output end side of the back face conveying belt are both provided with a sorting execution mechanism for removing defective products, and the good products continue to be transmitted.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The magnetic tile is automatically turned over by the vibration disc turnover mechanism, replacing manual turning, and the efficiency is improved.

[0018] The surface of the magnetic tile is covered without dead angle through the layout of three industrial cameras in a ring shape of 120°.

[0019] The polyurethane layer is attached to the inner side of the vibration disc receiving hopper, reducing the damage of the magnetic tile caused by collision.

[0020] The transmission position is monitored in real time by the optical fiber sensor, ensuring the accurate timing of photographing.

[0021] Through efficient sorting, the defective products are quickly removed and classified through the directional channel combined with the pneumatic push rod. DETAILED DESCRIPTION

[0022] Figure 1 It is a structural schematic view of the ferrite magnetic tile appearance defect detection equipment.

[0023] Figure 2 It is a structural schematic view of the detection transmission mechanism in the ferrite magnetic tile appearance defect detection equipment.

[0024] Figure 3 It is Figure 2 It is an enlarged structural schematic view of A in the middle.

[0025] The components include: front inspection box 1, back inspection box 2, 180° flipping mechanism 3, front inspection channel 4, back inspection channel 5, front conveyor belt 6, back conveyor belt 7, product discharge channel 8, front defective product output channel 9, back defective product output channel 10, ferrite magnetic tile defective product collection box 11, fiber optic sensor I 12, fiber optic sensor II 13, shooting tunnel 15, mounting column 16, industrial camera 17, moving plate flipping mechanism 18, slide rail 19, support rod 20, slider 21, screwing rod 22, and mounting plate 23. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Please see Figures 1-3The ferrite magnetic tile appearance defect detection equipment includes a front inspection box 1 and a back inspection box 2, which are connected by a 180° flipping mechanism 3. That is, the front inspection channel 4 and the back inspection channel 5 are connected by a 180° flipping mechanism 3. The front inspection box 1 and the back inspection box 2 are respectively provided with a through front inspection channel 4 and a back inspection channel 5. That is, the front inspection box 1 is provided with a through front inspection channel 4. The ferrite magnetic tile to be inspected moves along the inside of the front inspection channel 4 for front quality inspection. Then, the good front product is flipped by the 180° flipping mechanism 3 and transferred to the back inspection channel 5 for back quality inspection.

[0031] The front inspection channel 4 is equipped with a front conveyor belt 6. The ferrite tiles to be inspected are placed on the front conveyor belt 6 at equal intervals for transmission. The front conveyor belt 6 and the back conveyor belt 7 are each equipped with a set of vision inspection modules inside their corresponding front inspection box 1 and back inspection box 2. The vision inspection modules are used to perform a comprehensive inspection of the outer surface of the ferrite tiles placed on the front conveyor belt 6 and the back conveyor belt 7.

[0032] Each vision inspection module is equipped with a dynamic triggering system at its head to monitor the movement path of the ferrite magnetic tile in real time and accurately control the operation of the corresponding vision inspection module.

[0033] Both the front conveyor belt 6 and the back conveyor belt 7 are equipped with a sorting mechanism on one side of their output ends to remove defective products and allow good products to continue to be transported. The good products output from the front conveyor belt 6 are flipped by the 180° flipping mechanism 3 and transferred to the back conveyor belt 7 for reverse inspection. The good products output from the back conveyor belt 7 are collected through the product discharge channel 8.

[0034] In this embodiment of the invention, the visual inspection module inside the front inspection box 1 includes three industrial cameras 17 arranged in a ring, covering a 120° field of view on the upper surface of the ferrite magnetic tile.

[0035] Specifically, each set of industrial cameras 17 is provided with a set of shooting tunnels 15 on the side facing the ferrite magnetic tile. The two sets of shooting tunnels 15 located on the side of the front conveyor belt 6 and the bottom of the industrial cameras 17 are provided with a set of support frames for adjusting the distance between them. When the industrial cameras 17 are running, the distance between the shooting tunnels 15 and the industrial cameras 17 is adjusted according to the shooting distance requirements.

[0036] The support frame includes a set of slide rails 19, with support rods 20 supporting the bottom sides of the slide rails 19. Two sets of sliders 21 are slidably connected to the upper side of the slide rails 19. The tops of the two sets of sliders 21 are connected to the industrial camera 17 and the shooting tunnel 15 respectively through mounting plates 23. At the same time, a screw rod 22 is threadedly connected to one side of the slider 21. Rotating the screw rod 22 controls the contact force between its inner end and the slide rail 19, thereby controlling the movement and stopping of the slider 21 on the slide rail 19, thus accurately and stably controlling the distance between the industrial camera 17 and the shooting tunnel 15.

[0037] The shooting tunnel 15 located on one side above the front conveyor belt 6 and the industrial camera 17 are mounted together on the mounting column 16 by clamps. The distance between the clamps is adjusted to adjust the shooting speed.

[0038] The visual inspection module inside the reverse inspection box 2 has the same layout as the front inspection box 1.

[0039] In one embodiment of the present invention, the dynamic triggering system includes fiber optic sensor I 12 and fiber optic sensor II 13 disposed above the inlet end of the front conveyor belt 6 and the back conveyor belt 7. Fiber optic sensor I 12 triggers front-side photography, and fiber optic sensor II 13 triggers back-side photography.

[0040] In a preferred embodiment of the present invention, the sorting execution mechanism includes a front defective product output channel 9 and a back defective product output channel 10 disposed on one side of the output end of the front conveyor belt 6 and the back defective product output channel 7. The bottom end of the front defective product output channel 9 and the back defective product output channel 10 is provided with a ferrite magnetic tile defective product collection box 11 for receiving. At the same time, a pneumatic push rod is provided on one side of the top of the front defective product output channel 9 and the back defective product output channel 10. Under the action of the pneumatic push rod, the defective ferrite magnetic tiles are output.

[0041] In a preferred embodiment of the present invention, the 180° flipping mechanism 3 is configured as a vibratory plate flipping mechanism 18, which includes a receiving hopper, a vibratory chassis, a spiral flipping track, and a posture locking outlet. The receiving hopper is located below the end of the front conveyor belt 6 and receives the magnetic tile. The inner wall is lined with a polyurethane anti-collision layer. The vibratory chassis has a built-in electromagnetic vibrator (frequency adjustable from 40-60Hz) to drive the magnetic tile to move in a directional manner. The spiral flipping track extends from the receiving hopper to the beginning of the reverse conveyor belt 7. The track cross-section is a "semi-circular groove", the radius of which matches the curvature of the convex surface of the magnetic tile. The end of the posture locking outlet is equipped with a limiting stop to ensure that the magnetic tile slides out with the convex surface facing outward.

[0042] That is: the magnetic tile slides into the receiving hopper from the front conveyor belt 6 → due to the slight vibration of the chassis, the concave surface of the magnetic tile automatically faces upward and stands stably (based on the principle of center of gravity). The vibration drives the magnetic tile into the spiral track → the track is designed with a 180° spiral descent. As the magnetic tile slides down the track:

[0043] First half (90° arc): Concave side up → The track rotates, causing the magnetic tile to gradually tilt to one side;

[0044] Second half (90° arc): Center of gravity shifts → The magnetic tile automatically flips so that the convex side faces up (no external force required).

[0045] After flipping, the magnetic tile slides to the attitude locking exit → the limit stop prevents secondary flipping;

[0046] The convex-side-down magnetic tile is pushed to the reverse conveyor belt 7 and enters the reverse inspection station.

[0047] The working principle of this utility model is as follows: In the idle position of this device, all the aforementioned driving components (representing power elements, electrical devices, and compatible power supplies) are connected via wires. The electrical connections are completed in sequence between the working components. The detailed connection methods are well-known in the field. The following mainly describes the working principle and process, without further explanation of the electrical control.

[0048] Front detection: Ferrite magnetic tiles are placed at equal intervals on the front conveyor belt 6 for transmission, and fiber optic sensor I12 triggers industrial camera 17 to capture front images;

[0049] Sorting of good products: The pneumatic pusher pushes the defective products into the front defective product output channel 9 to the ferrite magnetic tile defective product collection box 11, and the good products enter the 180° flipping mechanism 3.

[0050] Automatic flipping: The ferrite magnetic tile slides into the receiving hopper of the vibratory plate flipping mechanism 18. The vibratory plate drives the magnetic tile to flip 180° along the spiral track from concave to convex surface, and outputs it through the outlet after attitude locking.

[0051] Reverse inspection: After flipping, the magnetic tile enters the reverse conveyor belt 7, and the fiber optic sensor II 13 triggers the reverse photograph. Defective products are rejected through the reverse defective product output channel 10.

[0052] Good product collection: Good products are output through product discharge channel 8.

[0053] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0054] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A ferrite magnetic tile appearance defect detection device, characterized in that, It includes a front inspection box (1) and a back inspection box (2), which are connected by a 180° flipping mechanism (3). The front inspection box (1) is provided with a through front inspection channel (4), and the back inspection box (2) is provided with a back inspection channel (5). The front inspection channel (4) is provided with a front conveyor belt (6), and the back inspection channel (5) is provided with a back conveyor belt (7). A vision inspection module is provided above both the front conveyor belt (6) and the back conveyor belt (7), and a sorting execution mechanism is provided at its output end. Each visual inspection module is equipped with a dynamic triggering system at its head.

2. The ferrite magnetic tile appearance defect detection equipment according to claim 1, characterized in that, The 180° flipping mechanism (3) is a vibratory plate flipping mechanism (18), including a receiving hopper, a vibratory chassis, a spiral flipping track and a posture locking outlet; the spiral flipping track is designed to descend in a 180° spiral, and the track profile is a semi-circular groove, and the posture locking outlet is provided with a limiting stop.

3. The ferrite magnetic tile appearance defect detection equipment according to claim 1, characterized in that, The vision inspection module includes three industrial cameras (17) arranged in a ring, covering a 120° field of view. Each group of industrial cameras (17) has a shooting tunnel (15) facing one side of the conveyor belt.

4. The ferrite magnetic tile appearance defect detection equipment according to claim 1, characterized in that, The dynamic triggering system includes fiber optic sensor I (12) and fiber optic sensor II (13) located at the inlet end of the conveyor belt, which trigger front / back detection and photography respectively.

5. The ferrite magnetic tile appearance defect detection equipment according to claim 1, characterized in that, The sorting execution mechanism includes a front defective product output channel (9), a back defective product output channel (10), and a pneumatic push rod. The bottom ends of the front defective product output channel (9) and the back defective product output channel (10) are connected to a ferrite magnetic tile defective product collection box (11).

6. The ferrite magnetic tile appearance defect detection equipment according to claim 1, characterized in that, Good products from the front conveyor belt (6) are transferred to the back conveyor belt (7) via a 180° flipping mechanism (3), and the good products from the back are collected via the product discharge channel (8).

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