Visual inspection device

Abstract

The utility model discloses a visual inspection device, and relates to the technical field of visual inspection. The device comprises a storage assembly, a first visual detection module and a second visual detection module, and the first visual detection module is arranged above the storage assembly and used for detecting the upper surface of a workpiece; comprising a first camera, a first light supplementing component and a first bracket; the second visual detection module is arranged on one side of the storage assembly and used for detecting the peripheral side of the workpiece; comprising a second camera, a second light supplementing component and a second support. According to the magnetic core defect detection device, the object placing assembly, the first visual detection module and the second visual detection module are arranged, the object placing assembly comprises the rotatable object placing table, a magnetic core is placed on the object placing table, and the first visual detection module conducts defect identification on the upper surface of the magnetic core from the upper portion of the magnetic core; meanwhile, along with the rotation of the object placing table, the second visual detection module completes the detection of a plurality of surfaces on the peripheral side of the magnetic core, so that the defect detection efficiency of the magnetic core is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of visual detection, in particular to a visual detection device. Background Art

[0002] A magnetic core is a sintered magnetic metal oxide composed of a mixture of various iron oxides. Typical materials include manganese-zinc ferrite and nickel-zinc ferrite. Magnetic cores are used in coils and transformers of various electronic devices. The main purpose is to increase the magnetic induction intensity of the electromagnet to improve the voltage conversion efficiency. At present, magnetic cores have become key components of magnetoelectric products such as common-mode inductors, high-frequency transformers, various current transformers, magnetic amplifiers, etc., and have been widely used in many fields such as the State Grid, photovoltaic power generation, rail transportation, new energy vehicles, and wireless charging.

[0003] The production of magnetic cores requires processes such as molding-sintering-grinding-painting, and the finished magnetic cores need to be inspected, such as defects, protrusions, spraying conditions, etc. At present, most of them use manual visual inspection, but manual inspection is time-consuming and labor-intensive.

[0004] The existing Chinese utility model patent with authorization announcement number CN218974157U discloses a visual inspection and identification device for workpieces. By understanding the specification and drawings, it can be known that the visual inspection and identification device installs a detection camera and a ring-shaped light source through a mounting frame. It can only inspect a single side of the workpiece at a time, and the detection range is relatively limited and the detection efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to provide a visual inspection device, which realizes multi-angle inspection of workpieces by setting a storage component, a first visual inspection module and a second visual inspection module, so as to solve the problem that the inspection device in the background technology can only inspect a single side of the workpiece, has a limited inspection range and low inspection efficiency.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a visual inspection device, comprising a storage component, a first visual inspection module and a second visual inspection module, wherein the storage component comprises a rotatable storage table; the first visual inspection module is arranged above the storage component and is used to inspect the upper surface of a workpiece; the device comprises a first camera, a first fill light component and a first bracket, wherein the first camera and the first fill light component are adjustably mounted on the first bracket; the second visual inspection module is arranged on one side of the storage component and is used to inspect the peripheral side of the workpiece; the device comprises a second camera, a second fill light component and a second bracket, wherein the second camera and the second fill light component are adjustably mounted on the second bracket.

[0008] As a preferred technical solution of the utility model, it also includes a base, and the storage assembly, the first bracket and the second bracket are all installed on the base.

[0009] As a preferred technical solution of the present utility model, the storage assembly also includes a drive motor for driving the storage table to rotate, and the drive motor is installed below the storage table.

[0010] As a preferred technical solution of the present utility model, the first camera is directly facing the upper surface of the storage table.

[0011] As a preferred technical solution of the utility model, it also includes a background plate, and the background plate and the second visual detection module are respectively installed on the opposite sides of the storage component, and the second camera is facing the background plate.

[0012] As a preferred technical solution of the utility model, a circle of shielding components is provided on the surrounding side of the storage table. The shielding components adopt the same color as the background board. The shielding components cover the viewing angle range of the lower part of the second camera, thereby reducing the impact of the structure under the storage table on the visual recognition results.

[0013] As a preferred technical solution of the utility model, a plurality of hanging buckles are fixed on the periphery of the storage table, and a plurality of hooks are fixed on the inner side of the shielding component. The hooks are engaged with the hanging buckles to enable the shielding component to rotate with the storage table.

[0014] The utility model has the following beneficial effects:

[0015] The utility model provides a storage component, a first visual inspection module and a second visual inspection module. The storage component includes a rotatable storage table. The magnetic core is placed on the storage table. The first visual inspection module identifies defects on the upper surface of the magnetic core from above the magnetic core. At the same time, as the storage table rotates, the second visual inspection module completes the inspection of multiple surfaces on the circumference of the magnetic core, thereby greatly improving the defect detection efficiency of the magnetic core.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of a visual inspection device of the utility model;

[0019] Figure 2 It is a structural schematic diagram of another embodiment of the visual inspection device of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a visual inspection device of the utility model in another embodiment;

[0021] Figure 4 for Figure 3 Exploded view of the center storage assembly;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 100- storage component, 111- storage table, 1110- hanging buckle, 121- driving motor, 131- shielding component, 1310- hook, 200- first visual detection module, 211- first camera, 221- first fill light component, 231- first bracket, 300- second visual detection module, 311- second camera, 321- second fill light component, 331- second bracket, 400- base, 511- background plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "both sides", "upper", "lower", "end", "top", "middle", "length", "inside", "circumferential side" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0026] The production of magnetic cores requires processes such as molding, sintering, grinding, and painting, and the finished magnetic cores need to be inspected, such as defects, protrusions, and spraying conditions of the magnetic cores. At present, most of them use manual visual inspection, but manual inspection is time-consuming and labor-intensive. Based on this, this embodiment provides a visual inspection device.

[0027] Figure 1 is a schematic diagram of the structure of the visual inspection device in this embodiment. Figure 1In the embodiment, the visual inspection device includes a storage component 100 , a first visual inspection module 200 and a second visual inspection module 300 , and the storage component 100 , the first visual inspection module 200 and the second visual inspection module 300 are all installed on a base 400 .

[0028] The storage assembly 100 includes a rotatable storage platform 111 . A driving motor 121 is disposed below the storage platform 111 . The storage platform 111 is mounted on an output shaft of the driving motor 121 .

[0029] The first visual inspection module 200 is arranged above the storage assembly 100 and is used to detect the upper surface of the workpiece. Specifically, the first visual inspection module 200 includes a first camera 211, a first fill light component 221 and a first bracket 231. The first camera 211 is directly opposite to the upper surface of the storage table 111, and another function of the storage table 111 is to serve as a background board for the first camera 211. The first camera 211 is connected to a recognition system. The first fill light component 221 adopts a ring fill light, and the viewing angle of the first camera 211 can pass through the first fill light component 221. The first bracket 231 includes a column and a cross bar that can slide up and down along the column, and the column and the cross bar are connected by a mounting block and can be locked by bolts. The cross bar can also rotate or slide along the mounting block. The first camera 211 and the first fill light component 221 are respectively mounted on two cross bars.

[0030] The second visual inspection module 300 is arranged on one side of the storage assembly 100, and is used to detect the peripheral side of the workpiece. The second visual inspection module 300 includes a second camera 311, a second fill light component 321 and a second bracket 331, and the second camera 311 is also connected to the recognition system. The second fill light component 321 also adopts a ring fill light. The second camera 311 and the second fill light component 321 are adjustably mounted on the second bracket 331. The second bracket 331 adopts the same structure as the first bracket 231.

[0031] During operation, the magnetic core is placed on the storage table 111, and the driving motor 121 drives the magnetic core on the storage table 111 to rotate, and the first camera 211 performs defect recognition on the upper surface of the magnetic core from above the magnetic core. At the same time, as the storage table 111 rotates, the second camera 311 completes the detection of multiple surfaces around the magnetic core, and the detection efficiency is high.

[0032] In a preferred embodiment of this embodiment, please refer to Figure 2 As shown, the visual inspection device also includes a background plate 511 to provide a background for the second camera 311 to identify, and the background plate 511 is installed on the base 400 through a bracket. The background plate 511 and the second visual inspection module 300 are respectively installed on opposite sides of the storage component 100, and the second camera 311 is facing the background plate 511, so that the imaging of the second camera 311 is clearer.

[0033] In another preferred implementation of this embodiment, when the second camera 311 detects the magnetic core, it will capture the edge of the storage platform 111 and the structure below the storage platform 111, which increases the amount of information that the second camera 311 needs to process. Figure 3 and Figure 4 As shown, a circle of shielding components 131 is provided around the side of the storage table 111, and the shielding components 131 cover the viewing angle range of the lower part of the second camera 311. The shielding components 131 are the same color as the background plate 511, such as green. When the second camera 311 takes pictures, only the colors of the magnetic core and the background plate exist within its viewing angle range, thereby improving recognition accuracy.

[0034] The shielding component 131 may be made of cloth or soft plastic.

[0035] In addition, in order to facilitate the adjustment and maintenance of the drive motor 121 and the like below the storage platform 111, the shielding component 131 is designed to be a detachable structure. Specifically, a plurality of hooks 1110 are fixed to the periphery of the storage platform 111, and a plurality of hooks 1310 are fixed to the inner side of the shielding component 131. The hooks 1310 are engaged with the hooks 1110 to enable the shielding component 131 to rotate with the storage platform 111 and facilitate disassembly. Of course, the shielding component 131 can also be fixed in other ways, such as by Velcro.

[0036] In summary, the visual inspection device provided in this embodiment is provided with a placement assembly 100, a first visual inspection module 200 and a second visual inspection module 300. When the core is placed on the placement table 111, the driving motor 121 drives the magnetic core on the placement table 111 to rotate, and the first camera 211 performs defect recognition on the upper surface of the magnetic core from above the magnetic core. At the same time, as the placement table 111 rotates, the second camera 311 completes the inspection of multiple surfaces around the magnetic core, greatly improving the defect detection efficiency of the magnetic core.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A visual inspection device, characterized in that: include: The storage assembly (100) comprises a rotatable storage table (111); A first visual inspection module (200), arranged above the storage assembly (100), and used for inspecting the upper surface of the workpiece; It comprises a first camera (211), a first fill light component (221) and a first bracket (231), wherein the first camera (211) and the first fill light component (221) are adjustably mounted on the first bracket (231); A second visual inspection module (300) is arranged on one side of the storage assembly (100) and is used to inspect the circumference of the workpiece; The invention comprises a second camera (311), a second fill-in light component (321) and a second bracket (331), wherein the second camera (311) and the second fill-in light component (321) are adjustably mounted on the second bracket (331).

2. A visual inspection device according to claim 1, characterized in that: It also includes a base (400), and the storage assembly (100), the first bracket (231) and the second bracket (331) are all installed on the base (400).

3. A visual inspection device according to claim 1, characterized in that: The storage assembly (100) further comprises a driving motor (121) for driving the storage platform (111) to rotate, and the driving motor (121) is installed below the storage platform (111).

4. A visual inspection device according to claim 3, characterized in that: The first camera (211) faces the upper surface of the storage platform (111).

5. A visual inspection device according to claim 4, characterized in that: It also includes a background plate (511), wherein the background plate (511) and the second visual detection module (300) are respectively installed on two opposite sides of the storage component (100), and the second camera (311) faces the background plate (511).

6. A visual inspection device according to claim 5, characterized in that: A circle of shielding components (131) is provided around the storage platform (111), the shielding components (131) are of the same color as the background plate (511), and the shielding components (131) cover the viewing angle range of the lower part of the second camera (311).

7. A visual inspection device according to claim 6, characterized in that: A plurality of hanging buckles (1110) are fixed on the periphery of the storage platform (111), and a plurality of hooks (1310) are fixed on the inner side of the shielding component (131), and the hooks (1310) are buckled with the hanging buckles (1110) to enable the shielding component (131) to rotate along with the storage platform (111).

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