Defect monitoring and identifying device

Abstract

The utility model belongs to the technical field of monitoring equipment, and relates to a defect monitoring and identifying device which comprises a workbench (1), a mounting column (2) arranged on one side of the workbench (1), and a camera (3), a lens (4), an annular light source (5) and a light shielding plate (6) which are coaxially arranged from top to bottom, a light through hole (61) is formed in the light shielding plate (6), a first connecting structure (7) is arranged on the mounting column (2) in a sliding manner, and a second connecting structure (8) is arranged on the first connecting structure (7). The annular light source (5) is rotationally connected with the first connecting structure (7); a second connecting structure (8) is arranged below the first connecting structure (7), the second connecting structure (8) is in sliding fit with the mounting column (2), and the shading plate (6) is fixedly connected with the second connecting structure (8). The defect monitoring and identifying device disclosed by the utility model can effectively inhibit stray light and improve the detection precision.

Description

TECHNICAL FIELD

[0001] The utility model belongs to monitoring equipment technical field relates to a kind of defect monitoring identification device. BACKGROUND

[0002] At present, the application of product defect monitoring and identification technology using industrial camera is very common, but in the defect identification of the product with high reflective surface, there are usually the following defects, 1 is the light fiber of light source is reflected after passing through the high reflective surface of product, there is stray light phenomenon, which is easy to cause image noise or pseudo defect. And the limited light source position is fixed, on the one hand, the general performance is poor, on the other hand, it will also have adverse effects on detection accuracy. UTILITY MODEL CONTENT

[0003] The utility model aims at solving above-mentioned problem, provide a kind of defect monitoring identification device.

[0004] To achieve the above object, the utility model provides a kind of defect monitoring identification device, including workbench, installation column being arranged at the one side of workbench and camera, lens, annular light source and light shield being coaxially arranged from top to bottom, the light shield is equipped with light hole, the first connecting structure is slidably arranged on the installation column, the annular light source is rotatably connected with the first connecting structure.

[0005] The second connecting structure is slidably connected with the installation column, and the light shield is fixedly connected with the second connecting structure.

[0006] Further, the first connecting structure includes a sliding frame and a connecting frame connected to the sliding frame, the connecting frame is provided with a rotating sliding block, and the annular light source is provided with a sliding rail slidably connected with the rotating sliding block.

[0007] Further, the sliding frame is located at the outer periphery of the installation column, the installation column is provided with a vertical sliding groove, and the sliding frame is provided with a vertical sliding block slidably connected with the vertical sliding groove.

[0008] The installation column is provided with an electric telescopic rod, and the electric telescopic rod is connected with the sliding frame.

[0009] Further, the installation column is also provided with a second vertical sliding groove, and the second connecting structure is provided with a second vertical sliding block slidably connected with the second vertical sliding groove.

[0010] The workbench is provided with a second electric telescopic rod, and the second electric telescopic rod is connected with the second connecting structure.

[0011] Further, the upper surface of the light shield is a rough surface.

[0012] The utility model discloses the beneficial effect is as follows:

[0013] The defect monitoring and identifying device of the application, through the setting of the light shield plate, can effectively improve the monitoring accuracy, and the upper surface of the light shield plate is roughened (such as frosted or provided with a concave-convex structure), which can avoid the reflection phenomenon caused by the light shield plate.

[0014] The defect monitoring and identifying device of the application, with the height-adjustable ring light source, height-adjustable light shield plate and horizontally rotatable ring light source, can further improve the defect identification accuracy and avoid false detection or missed detection. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a three-dimensional view of a defect monitoring and identifying device according to an embodiment of the application.

[0016] Figure 2 The utility model discloses a top view of a defect monitoring and identifying device according to an embodiment of the application. Figure 1

[0017] Figure 3 The utility model discloses a three-dimensional view of a defect monitoring and identifying device according to an embodiment of the application.

[0018] Figure 4 The utility model discloses a three-dimensional view of a defect monitoring and identifying device according to an embodiment of the application. Figure 3 DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] The application will be described in detail below in combination with the drawings and specific embodiments, and the embodiments cannot be described one by one here, but the embodiments of the application are not limited to the following embodiments.

[0021] In combination with Figures 1-4 ​​The utility model provides a kind of defect monitoring identification device, including workbench 1, the mounting column 2 of being arranged in the one side of workbench 1 and the coaxial camera 3, lens 4, annular light source 5 and light shield 6 being arranged from top to bottom, and light hole 61 is equipped on light shield 6.In the present application, first connecting structure 7 is slidably arranged on mounting column 2, annular light source 5 is rotatably connected with first connecting structure 7, specifically, first connecting structure 7 includes sliding frame 71 and the connecting frame 72 connected with sliding frame 71, rotating slide block 721 is equipped on connecting frame 72, and sliding rail 51 is equipped on annular light source 5 and is slidably matched with rotating slide block 721.Sliding frame 71 is located at the outer periphery of mounting column 2, and vertical sliding slot 21 is provided on mounting column 2, and vertical sliding block 711 is provided on sliding frame 71 and is slidably matched with vertical sliding slot 21, and electric telescopic rod 9 is installed on mounting column 2, and electric telescopic rod 9 is connected with sliding frame 71.

[0022] According to one embodiment of the utility model, second connecting structure 8 is provided below first connecting structure 7, second connecting structure 8 is slidably matched with mounting column 2, and light shield 6 is fixedly connected with second connecting structure 8.Specifically, second vertical sliding slot 22 is further provided on mounting column 2, and second connecting structure 8 has second vertical sliding block 81 and is slidably matched with second vertical sliding slot 22.Second electric telescopic rod 10 is provided on workbench 1, and second electric telescopic rod 10 is connected with second connecting structure 8.

[0023] The defect identification device of the utility model, through the above structure arrangement, light shield 6 can block the light reflection of non visual field area, and reduce image noise points.In the present application, the upper surface of light shield 6 is rough surface.Such arrangement can avoid the reflection problem caused by light shield 6.

[0024] The defect monitoring identification device of the utility model, annular light source 5 and light shield 6 are height-adjustable, can dynamically optimize light incidence angle, suppress reflection interference, and can adapt to products of different thicknesses.In addition, some defects (such as scratches and pits) of products present different contrasts under different light directions, and the height adjustment of light source is beneficial to improve detection accuracy, for example, changing light incidence angle can make the edges of defects produce differential shadows, and the height reduction of light source can highlight the light and dark boundary of horizontal scratches, and the height increase of high-angle light source can enhance the annular shadow of pit.And light source horizontal rotation, combined with height adjustment generates multi-directional illumination mode, covering anisotropic defects, such as radial cracks.

[0025] In addition, the defect monitoring identification device of the utility model can eliminate the dynamic interference of local reflection area.When there is an arc or uneven area on the surface of product, fixed light source is easy to form highlight spot in local area, which covers defects.The dynamic light source and dynamic light shield arrangement of the utility model can effectively solve this problem.

[0026] The above merely describes one embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A defect monitoring and identifying device, comprising a workbench (1), a mounting column (2) arranged on one side of the workbench (1), and a camera (3), a lens (4), a ring-shaped light source (5) and a light shield (6) arranged coaxially from top to bottom, wherein the light shield (6) is provided with a light passing hole (61), characterized in that, The first connecting structure (7) is arranged on the mounting column (2) in sliding mode, and the annular light source (5) is rotationally connected with the first connecting structure (7); The second connecting structure (8) is arranged below the first connecting structure (7) and is in sliding fit with the mounting column (2), and the light shielding plate (6) is fixedly connected with the second connecting structure (8).

2. The defect monitoring recognition apparatus according to claim 1, characterized in that, The first connecting structure (7) comprises a sliding frame (71) and a connecting frame (72) connected with the sliding frame (71), and the connecting frame (72) is provided with a rotary sliding block (721), and the annular light source (5) is provided with a sliding rail (51) in sliding fit with the rotary sliding block (721).

3. The defect monitoring recognition apparatus according to claim 2, characterized in that, The sliding frame (71) is located at the outer periphery of the mounting column (2), and the mounting column (2) is provided with a vertical sliding groove (21), and the sliding frame (71) is provided with a vertical sliding block (711) in sliding fit with the vertical sliding groove (21); The mounting column (2) is provided with an electric telescopic rod (9), and the electric telescopic rod (9) is connected with the sliding frame (71).

4. The defect monitoring recognition apparatus according to claim 3, characterized in that, The mounting column (2) is further provided with a second vertical sliding groove (22), and the second connecting structure (8) has a second vertical sliding block (81) in sliding fit with the second vertical sliding groove (22); The workbench (1) is provided with a second electric telescopic rod (10), and the second electric telescopic rod (10) is connected with the second connecting structure (8).

5. The defect monitoring recognition apparatus according to claim 4, characterized in that, The upper surface of the light shielding plate (6) is a rough surface.

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