Optical detection device

Abstract

The utility model relates to an optical detection device which comprises a track plate and an optical detection module, a track extending in the arc direction is arranged on the track plate, the optical detection module comprises a detection assembly and a light source assembly, and the detection assembly is arranged on the track in a sliding mode so as to be capable of rotating around the central axis defined in the arc direction along the track. The light source assembly is fixedly mounted on the detection assembly, so that the detection assembly and the light source assembly can rotate along the track around the central axis defined in the arc direction, and therefore, when appearance defects of a product are detected, the edge detection requirement at any angle can be met, instability caused by detection through a handheld camera is overcome, and the detection accuracy is improved. Effective lighting can be carried out when the detection camera rotates to any angle for detection, other structures do not need to be additionally arranged, a light source assembly does not need to be independently arranged, the detection effect is better, meanwhile, the structure of the device is simplified, and maintenance is convenient.

Description

Technical Field

[0001] The present application relates to the field of optical detection technology, and in particular to an optical detection device. Background Art

[0002] Medium-sized crack inspection is a critical process in the production of products such as mobile phone displays and LED LCDs. Specifically, these displays are typically laminated to glass cover plates, which inevitably develop cracks during the cutting process. Therefore, crack inspection is required for all four edges of the glass cover plates, which are produced by the previous-stage cutting equipment.

[0003] In recent years, display screens with curved edges have rapidly gained popularity in the market. Consequently, glass cover panels also have curved edges. Traditional methods for inspecting the appearance of glass cover panels rely primarily on manual visual inspection or camera inspection. Manual visual inspection is relatively backward, inefficient, inaccurate, and difficult to control, making it incompatible with current industrial automation production. Furthermore, camera inspection, due to limitations in accuracy and depth of field, requires the camera to be rotated multiple times to capture images of the same curvature. Existing technology relies solely on handheld cameras for inspection, resulting in relatively low effectiveness and efficiency. Utility Model Content

[0004] Based on this, the purpose of this application is to provide an optical detection device to solve the problem of low detection accuracy and detection efficiency when performing defect detection on products with curved edges in the prior art.

[0005] According to one aspect of the present application, there is provided an optical detection device, comprising:

[0006] A track plate, wherein the track plate is provided with a track extending along an arc direction;

[0007] The optical inspection module includes a detection component and a light source component. The detection component is slidably arranged on the track so as to be able to rotate along the track around the central axis defined by the arc direction, and the central axis extends along a first horizontal direction. The light source component is fixedly mounted on the detection component; the detection component is used to detect the appearance defects of the product, and the light source component is used to provide illumination when the detection component performs inspection.

[0008] In one embodiment, the optical detection device further includes a driving module, the track plate is connected to the driving module, and the driving module is used to drive the track plate and the optical detection module to move along a second horizontal direction perpendicular to the first horizontal direction.

[0009] In one embodiment, the optical detection device further includes a linear guide rail extending along the second horizontal direction, and the track plate is correspondingly provided with a slider on the other side opposite to the track, and the slider is slidably arranged on the linear guide rail.

[0010] In one embodiment, the track is a groove provided on the track plate, and the optical detection module is provided with a roller, which is slidably embedded in the track.

[0011] In one embodiment, the track plate has a plurality of scale marks on one side where the track is provided, and all the scale marks are arranged at intervals along the arc direction. A pointer is provided on the optical detection module, and the pointer is used to point to the position of the corresponding scale mark when the optical detection module slides along the track to display the rotation angle of the optical detection module around the central axis.

[0012] In one embodiment, the detection assembly includes a mounting plate and a detection camera, the mounting plate is slidably arranged on the track, the detection camera is connected to the mounting plate, and the light source assembly is fixedly connected to the detection camera.

[0013] In one embodiment, the detection component also includes a fine-tuning slide, the fine-tuning slide is arranged on the mounting plate, the detection camera is arranged on the fine-tuning slide, and the fine-tuning slide is provided with a first knob and / or a second knob, the first knob is used to control the fine-tuning slide to drive the detection camera to move along the second horizontal direction relative to the mounting plate, and the second knob is used to control the fine-tuning slide to drive the detection camera to move along the vertical direction relative to the mounting plate.

[0014] In one embodiment, the light source assembly includes an adjustment frame and a light source, the adjustment frame is mounted on the detection assembly, and the light source is movably mounted on the adjustment frame so that the light source can move relative to the adjustment frame.

[0015] In one embodiment, the adjustment mount comprises:

[0016] a first mounting block, fixedly mounted on the detection assembly;

[0017] a second mounting block movably mounted on the first mounting block along the first horizontal direction;

[0018] The third mounting block is movably mounted on the second mounting block in a vertical direction. The light source is rotatably mounted on the third mounting block around a rotation axis extending along a second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction.

[0019] In one embodiment, there are two light source assemblies, and the light sources of the two light source assemblies are symmetrically arranged.

[0020] The above-mentioned optical detection device is achieved by setting a track extending along an arc direction on the track plate, and sliding the detection component of the optical detection module on the track, and fixing the light source component on the detection component, so that the detection component and the light source component can rotate together along the track around the central axis defined by the above-mentioned arc direction. Therefore, when detecting the appearance defects of the product, the edge detection requirements at any angle can be met, overcoming the instability brought about by handheld camera detection, and effective lighting can be performed when the detection camera is rotated to any angle for detection, without the need to set up other structures to install the light source component, which not only improves the detection effect but also simplifies the structure of the device and facilitates maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Axis view of the optical detection device provided in one embodiment of the present application Figure 1 .

[0022] Figure 2 An exploded view of an optical detection device provided in one embodiment of the present application.

[0023] Figure 3 Axis view of the optical detection device provided in one embodiment of the present application Figure 2 .

[0024] Figure 4 for Figure 1 A magnified schematic diagram of area A in the middle.

[0025] Description of reference numerals:

[0026] 10. Optical detection device; 100. Track plate; 101. Track; 102. Scale mark; 103. Slider; 200. Optical detection module; 210. Detection assembly; 211. Mounting plate; 212. Detection camera; 213. Fine adjustment slide; 2131. First support seat; 2132. Second support seat; 214. First knob; 215. Second knob; 220. Light source assembly; 221. Adjustment frame; 2211. First mounting block; 2212. Second mounting block; 2213. Third mounting block; 222. Light source; 230. Roller; 240. Pointer; 300. Drive module; 400. Linear guide; 50. Center axis; 60. Rotation axis. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0033] The present application provides an optical inspection device, which is used to inspect the appearance quality of flat products, especially flat products with edges or curved surfaces, to ensure that the products have reliable quality and prevent defective products from flowing into the back-end process, thereby causing greater waste.

[0034] The structure of the optical inspection device of the present application is described below using a glass panel as an example, and using the optical inspection device to inspect the curved edges of the glass panel as an example. It is understood that in other embodiments, the material inspection and screening device of the present application is not limited to inspecting the curved edges of glass panels, but can also inspect any plate-like product, such as the curved edges or curved surfaces of various substrates and panels, without limitation herein.

[0035] See Figure 1 , Figure 1 FIG2 shows an isometric view of an optical inspection device 10 provided in an embodiment of the present application. The optical inspection device 10 provided in an embodiment of the present application includes a track plate 100 and an optical inspection module 200. The optical inspection module 200 is slidably disposed on the track plate 100 and is capable of moving along an arc direction (the V direction shown in the figure), that is, rotating about a central axis 50 defined by the arc direction. The central axis 50 extends along a first horizontal direction (the X direction shown in the figure), thereby enabling appearance defect detection on the curved edges around the product or the curved surface of the product.

[0036] Specifically, in the embodiment shown in the figure, the track plate 100 is an arc-shaped plate structure, and a track 101 extending along the above-mentioned arc direction is provided on one side of the track. The optical detection module 200 includes a detection component 210 and a light source component 220. The detection component 210 is arranged on the track 101 so as to be able to rotate along the central axis 50 defined by the arc direction along the track 101. The light source component 220 is fixedly connected to the detection component 210. The detection component 210 is used to detect the appearance defects of the product. The light source component 220 is used to provide illumination when the detection component 210 performs detection, so as to be able to illuminate during detection and ensure better detection effect.

[0037] In this way, through the above-mentioned setting, the detection component 210 and the light source component 220 can rotate together along the track 101 around the central axis 50 defined by the above-mentioned arc direction. In this way, when detecting the arc edges around the product, the edge detection requirements at any angle can be met, overcoming the instability brought by the handheld camera detection, and when the detection camera 212 is rotated to any angle for detection, it can effectively illuminate, and there is no need to set up other structures to install the light source component 220. While improving the detection effect, it also simplifies the structure of the device and facilitates maintenance.

[0038] More specifically, if Figure 1 and Figure 2 As shown, the track 101 is an arc-shaped groove opened on one side of the track plate 100. The optical detection module 200 is provided with a roller 230, which is slidably embedded in the track 101 so that the roller 230 can only roll along the arc-shaped track 101, thereby ensuring the movement stability of the optical detection module 200 and preventing it from moving along other paths.

[0039] Preferably, there are two tracks 101, and the two tracks 101 are arranged in parallel along the radial interval defined by the above-mentioned central axis 50. Correspondingly, two rollers 230 are correspondingly provided on the optical detection module 200, and each roller 230 is slidably embedded in a corresponding track 101, so as to prevent the optical detection module 200 from shaking during movement, and further ensure the movement stability of the optical detection module 200.

[0040] It can be understood that the track 101 is not limited to the form of a groove, but can also be a raised slide rail structure. The slider 103 on the optical detection module 200 can be slidably connected to the raised slide rail, and the number of tracks 101 is not limited to two, but can be more, and there is no special limitation here.

[0041] More preferably, the track plate 100 has multiple scale markings 102 on the side where the track 101 is located. All scale markings 102 are spaced apart along the arc extending from the track 101. Each scale marking 102, or every other scale marking 102, is marked with a number (e.g., 0°, 5°, 10°, ..., 90°) representing the corresponding angle in the arc. The optical detection module 200 is provided with a pointer 240. The pointer 240 is used to point to the corresponding scale marking 102 as the optical detection module 200 slides along the track 101, clearly and intuitively displaying the rotation angle of the optical detection module 200 about the central axis 50 defined by the track 101.

[0042] Regarding the rotation range of the optical detection module 200, taking the embodiment in the figure as an example, the rotation angle range is 0°~90°, but it should be noted that in the embodiment of the present application, the rotation angle range of the optical detection module 200 is not limited to this, and the rotation angle range can be any rotation angle range, depending on the extension arc of the track 101.

[0043] For further information, please refer to Figure 1 In an improved embodiment, the optical inspection device 10 provided in the present application further includes a drive module 300, which is connected to the track plate 100 and is used to drive the track plate 100 and the optical inspection module 200 to move together along a second horizontal direction (the Y direction shown in the figure) perpendicular to the first horizontal direction. This allows for inspection of the edges of products of different sizes when the products are of different sizes, and allows for matching and adjustment of the arc direction of products obtained by cutting different machine types to accommodate products cut by different machine types. Exemplarily, the drive module 300 can be a linear module, a motor, or various types of drive cylinders (e.g., pneumatic cylinders, electric cylinders, hydraulic cylinders), etc., which are not limited herein.

[0044] Preferably, when the track plate 100 moves along the second horizontal direction, in order to better support the track plate 100 and to guide it, as shown in FIG. Figure 3 As shown, the optical detection device 10 provided in the present application further includes a linear guide rail 400 extending along a second horizontal direction. The track plate 100 is correspondingly provided with a slider 103 on the other side opposite to the track 101. The slider 103 is slidably arranged on the linear guide rail 400. In order to ensure the stability of sliding, in the embodiment shown in the figure, there are also two linear guide rails 400. The two linear guide rails 400 are arranged in parallel and spaced apart in the vertical direction. The slide rail is slidably arranged on a corresponding linear guide rail 400. Similarly, the number of linear guide rails 400 is not limited and can be one or more, and there is no specific limitation.

[0045] In the specific structure of the detection component 210, as shown in FIG. Figure 1As shown, in one embodiment, the detection component 210 includes a mounting plate 211 and a detection camera 212. The mounting plate 211 is slidably set on the track 101, the detection camera 212 is connected to the mounting plate 211, and the light source component 220 is fixedly connected to the detection camera 212. The detection camera 212 is used to take pictures of the product to be inspected to obtain an image of the product, so as to detect defects on the edges or surfaces of the product.

[0046] Further optionally, the detection component 210 further includes a fine adjustment slide 213, the fine adjustment slide 213 is set on the mounting plate 211, and the detection camera 212 is set on the fine adjustment slide 213. Figure 1 and Figure 4 As shown, a first knob 214 and a second knob 215 are provided on the fine-tuning slide 213. The first knob 214 is used to control the fine-tuning slide 213 to drive the detection camera 212 to move along the second horizontal direction relative to the mounting plate 211, and the second knob 215 is used to control the fine-tuning slide 213 to drive the detection camera 212 to move along the vertical direction relative to the mounting plate 211.

[0047] In this way, by manually rotating the first knob 214 or the second knob 215, the position of the detection camera 212 in the second horizontal direction or the horizontal direction can be fine-tuned, thereby accurately adjusting the focal length of the detection camera 212 so that the camera can achieve clear imaging more accurately.

[0048] In a specific embodiment, the fine-tuning slide 213 includes a first support seat 2131 and a second support seat 2132 which are arranged superimposed on each other. The first support seat 2131 is slidably connected to the mounting plate 211 in the vertical direction. The first knob 214 is set on the first support seat 2131, and the second support seat 2132 is slidably connected to the first support seat 2131 in the second horizontal direction. The detection camera 212 is fixedly installed on the second support seat 2132, so that when the first knob 214 is rotated, the first support seat 2131 can drive the second support seat 2132, the detection camera 212 and the light source assembly 220 to move a small distance in the vertical direction; when the second knob 215 is rotated, the second support seat 2132 can drive the detection camera 212 and the light source assembly 220 to move a small distance in the second horizontal direction. Of course, the first support seat 2131 may also be slidably connected to the mounting plate 211 along the second horizontal direction, and the second support seat 2132 may be slidably connected to the first support seat 2131 along the vertical direction, which is not limited here.

[0049] Regarding the structure of the light source assembly 220, please continue to refer to Figure 4In one embodiment, the light source assembly 220 includes an adjustment frame 221 and a light source 222. The adjustment frame 221 is mounted on the detection assembly 210, and the light source 222 is movably mounted on the adjustment frame 221, thereby enabling adjustment of the lighting angle of the light source 222. Preferably, the light source assembly 220 has two light source assemblies 220, and the light sources 222 of the two light source assemblies 220 are symmetrically arranged along a symmetry plane. Specifically, the symmetry plane is formed by a line extending along a first horizontal direction and a line extending along a vertical direction, and the symmetry plane passes through the midpoint of the connecting line of the two light sources 222. This allows the two light sources 222 to illuminate the product from opposite sides during inspection, thereby improving the lighting intensity.

[0050] More specifically, the adjustment frame 221 includes a first mounting block 2211, a second mounting block 2212 and a third mounting block 2213. The first mounting block 2211 is fixedly mounted on the detection camera 212 of the detection assembly 210, the second mounting block 2212 is movably mounted on the first mounting block 2211 along the first horizontal direction, the third mounting block 2213 is movably mounted on the second mounting block 2212 along the vertical direction, and the light source 222 is rotatably mounted on the third mounting block 2213 around a rotation axis 60 extending along the second horizontal direction.

[0051] In this way, the light source 222 can rotate relative to the detection camera 212 around the rotation axis 60 extending along the second horizontal direction, or move in the vertical direction, or move in the vertical direction together with the third mounting block 2213, or move in the first horizontal direction together with the third mounting block 2213 and the second mounting block 2212, so that the position of the light source 222 can be adjusted as needed to ensure a better lighting effect.

[0052] It can be seen that the optical detection device 10 provided in the present application can adjust the position of the optical detection module 200 in the second horizontal direction and the circumferential direction, so that products with different edge curvatures or surface curvatures cut by different models can be inspected, meeting the inspection requirements of different products within different curvature ranges, and has a simple structure and is easy to maintain.

[0053] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An optical detection device, characterized in that: include: A track plate (100), wherein the track plate (100) is provided with a track (101) extending along an arc direction; An optical inspection module (200) comprises a inspection component (210) and a light source component (220), wherein the inspection component (210) is slidably arranged on the track (101) so as to be capable of rotating along the track (101) around a central axis (50) defined in the direction of the arc, wherein the central axis (50) extends along a first horizontal direction, and the light source component (220) is fixedly mounted on the inspection component (210); the inspection component (210) is used to inspect appearance defects of a product, and the light source component (220) is used to provide illumination when the inspection component (210) is performing inspection.

2. The optical detection device according to claim 1, characterized in that The optical detection device (10) further comprises a driving module (300), the track plate (100) being connected to the driving module (300), and the driving module (300) being used to drive the track plate (100) and the optical detection module (200) to move together along a second horizontal direction perpendicular to the first horizontal direction.

3. The optical detection device according to claim 2, characterized in that The optical detection device (10) further comprises a linear guide rail (400) extending along the second horizontal direction; the track plate (100) is correspondingly provided with a slider (103) on the other side opposite to the track (101); the slider (103) is slidably arranged on the linear guide rail (400).

4. The optical detection device according to claim 1, characterized in that The track (101) is a groove provided on the track plate (100); the optical detection module (200) is provided with a roller (230); and the roller (230) is slidably embedded in the track (101).

5. The optical detection device according to claim 1, characterized in that The track plate (100) has a plurality of scale marks (102) on one side where the track (101) is provided, and all the scale marks (102) are arranged at intervals along the arc direction. The optical detection module (200) is provided with a pointer (240), and the pointer (240) is used to point to the position of the corresponding scale mark (102) when the optical detection module (200) slides along the track (101), so as to display the rotation angle of the optical detection module (200) around the central axis (50).

6. The optical detection device according to claim 1, characterized in that The detection assembly (210) comprises a mounting plate (211) and a detection camera (212); the mounting plate (211) is slidably arranged on the track (101); the detection camera (212) is connected to the mounting plate (211); and the light source assembly (220) is fixedly connected to the detection camera (212).

7. The optical detection device according to claim 6, characterized in that: The detection component (210) further includes a fine-tuning slide (213), wherein the fine-tuning slide (213) is arranged on the mounting plate (211), and the detection camera (212) is arranged on the fine-tuning slide (213). The fine-tuning slide (213) is provided with a first knob (214) and / or a second knob (215), wherein the first knob (214) is used to control the fine-tuning slide (213) to drive the detection camera (212) to move along a second horizontal direction relative to the mounting plate (211), and the second knob (215) is used to control the fine-tuning slide (213) to drive the detection camera (212) to move along a vertical direction relative to the mounting plate (211).

8. The optical detection device according to claim 1, characterized in that The light source assembly (220) comprises an adjustment frame (221) and a light source (222); the adjustment frame (221) is mounted on the detection assembly (210); and the light source (222) is movably mounted on the adjustment frame (221) so that the light source (222) can move relative to the adjustment frame (221).

9. The optical detection device according to claim 8, characterized in that: The adjustment frame (221) comprises: A first mounting block (2211) is fixedly mounted on the detection assembly (210); a second mounting block (2212) movably mounted on the first mounting block (2211) along the first horizontal direction; The third mounting block (2213) is movably mounted on the second mounting block (2212) in a vertical direction, and the light source (222) is rotatably mounted on the third mounting block (2213) around a rotation axis (60) extending along a second horizontal direction, wherein the second horizontal direction is perpendicular to the first horizontal direction.

10. The optical detection device according to claim 8, characterized in that: The light source assemblies (220) have two light sources, and the light sources (222) of the two light source assemblies (220) are symmetrically arranged.

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