Appearance surface defect detection device and detection method

Abstract

An appearance surface defect detection device and detection method, used to detect defects on the appearance surface of a product, including: a transplanting mechanism, used to carry a product and drive the product to move; a first detection mechanism, arranged within the path range through which the transplanting mechanism drives the product to move, the first detection mechanism is used to irradiate the product with a detection light perpendicular to the appearance surface, and to capture an image of the appearance surface to generate a first image; a second detection mechanism, arranged within the path range through which the transplanting mechanism drives the product to move, the second detection mechanism is used to irradiate the product with a detection light surrounding the edge of the appearance surface and inclined to the appearance surface, and to capture an image of the appearance surface to generate a second image; a processing mechanism, communicatively connected to the first detection mechanism and the second detection mechanism, and used to perform defect judgment on the first image and the second image of the same product respectively. The above-mentioned appearance surface defect detection device and detection method can automatically detect appearance surface defects of a product to reduce manual intensity and improve detection accuracy.

Description

Technical Field

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

[0002] In the process of producing products with high gloss surfaces, such as logos with high gloss surfaces, since the high gloss surface is an important appearance surface, the quality control requirements are extremely strict and no appearance defects are allowed. The existing methods for detecting defects on high gloss surfaces are generally performed by manual visual inspection. The inventors found that there are at least the following problems in the prior art: 1. Manual full inspection is time-consuming and labor-intensive, and the standards are not uniform; 2. Because high gloss surface defects are difficult to judge, visual inspection requires quality inspectors to observe the high gloss surface for a long time under the light of the inspection table, which can easily cause visual fatigue and vision damage to employees; 3. Manual full inspection is prone to misjudgment and missed judgment. Summary of the invention

[0003] In view of this, it is necessary to provide an appearance surface defect detection device and a detection method, which can automatically detect defects on the appearance surface of a product.

[0004] An embodiment of the present application provides an appearance surface defect detection device for detecting defects on the appearance surface of a product, comprising: a transplanting mechanism, for carrying the product and driving the product to move; a first detection mechanism, arranged within the path range through which the transplanting mechanism drives the product to move, the first detection mechanism being used to irradiate the product with a detection light perpendicular to the appearance surface, and to capture an image of the appearance surface to generate a first image; a second detection mechanism, arranged within the path range through which the transplanting mechanism drives the product to move, the second detection mechanism being used to irradiate the product with a detection light surrounding the edge of the appearance surface and inclined to the appearance surface, and to capture an image of the appearance surface to generate a second image; a processing mechanism, communicatively connected to the first detection mechanism and the second detection mechanism, and used to perform defect judgment on the first image and the second image of the same product, respectively.

[0005] Furthermore, in some embodiments of the present application, the first detection mechanism includes a first support frame, a coaxial light source and a first imaging mechanism, the first support frame is arranged on the periphery of the transplanting mechanism, the coaxial light source and the first imaging mechanism are adjustably connected to the first support frame, the coaxial light source is used to irradiate the product with detection light perpendicular to the appearance surface, and the first imaging mechanism is used to capture an image of the appearance surface.

[0006] Furthermore, in some embodiments of the present application, the first imaging mechanism includes a first lens and a first camera, the first lens is used to magnify the appearance surface, and the first camera is used to capture the appearance surface magnified by the first lens and generate the first image.

[0007] Furthermore, in some embodiments of the present application, the second detection mechanism includes a second support frame, an annular light source and a second imaging mechanism, the second support frame is arranged on the periphery of the transplanting mechanism, the annular light source and the second imaging mechanism are adjustably connected to the second support frame, the annular light source is used to irradiate the product with detection light that surrounds the edge of the appearance surface and is inclined to the appearance surface, and the second imaging mechanism is used to capture an image of the appearance surface.

[0008] Furthermore, in some embodiments of the present application, the second imaging mechanism includes a second lens and a second camera, the second lens is used to magnify the appearance surface, and the second camera is used to capture the appearance surface magnified by the second lens and generate the second image.

[0009] Furthermore, in some embodiments of the present application, the transplanting mechanism includes a turntable and a plurality of supporting members, wherein the supporting members are arranged at the outer edge of the turntable along the circumferential direction of the turntable, and each of the supporting members is provided with a contoured hole, which is adapted to the product and is used to carry the product.

[0010] Furthermore, in some embodiments of the present application, the supporting members are arranged at equal intervals on the outer edge of the turntable along the circumferential direction of the turntable.

[0011] Furthermore, in some embodiments of the present application, the appearance surface defect detection device also includes two positioning mechanisms, one of which is arranged opposite to the first detection mechanism, and the other is arranged opposite to the second detection mechanism, and the turntable drives the carrier to move between the first detection mechanism and the corresponding positioning mechanism, and between the second detection mechanism and the corresponding positioning mechanism, and the positioning mechanism sucks and levels the appearance surface in the contouring hole through the contouring hole.

[0012] Furthermore, in some embodiments of the present application, each of the supporting members is slidably connected to the edge of the turntable, and each of the positioning mechanisms includes an adsorption member and a driving member. The adsorption member is arranged relative to the first detection mechanism or the second detection mechanism, and the driving member is used to clamp the supporting member between the first detection mechanism or the second detection mechanism and the corresponding adsorption member, and drive the supporting member to move toward the adsorption member.

[0013] An embodiment of the present application provides a method for detecting appearance defects, which is applied to any of the above-mentioned appearance defect detection devices, and includes the following steps:

[0014] Collect image samples of product surfaces with defects;

[0015] Classifying and labeling defects in the image sample;

[0016] The initial defect recognition model is trained using the labeled image samples to obtain a trained defect recognition model;

[0017] An image to be identified is acquired, and the image to be identified is input into the defect identification model to determine whether the image to be identified has defects.

[0018] In the above-mentioned appearance surface defect detection device and detection method, the first detection mechanism irradiates the product with detection light perpendicular to the appearance surface, and the second detection mechanism irradiates the product with detection light surrounding the edge of the appearance surface and inclined to the appearance surface, so as to highlight different types of defects appearing in the appearance surface, and make the defects clearly displayed in the first image and the second image, thereby improving the detection accuracy of the appearance surface defect detection device. The first image and the second image of the same product are respectively imported into the defect recognition model by the processing mechanism to perform defect judgment, thereby realizing the function of the appearance surface defect detection device to automatically detect the defects of the appearance surface of the product, which reduces the intensity of manual work and improves the detection accuracy compared with the existing manual detection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of an appearance surface defect detection device in one embodiment of the present application.

[0020] Figure 2 Schematic diagram of the structure of the first detection mechanism in the appearance surface defect detection device in one embodiment of the present application.

[0021] Figure 3 Schematic diagram of the structure of the second detection mechanism in the appearance surface defect detection device in one embodiment of the present application.

[0022] Figure 4 Schematic diagram of the structure of the transfer mechanism and the positioning mechanism in the appearance defect detection device in one embodiment of the present application.

[0023] Figure 5 It is an enlarged structural schematic diagram of the transplanting mechanism and the positioning mechanism in the appearance surface defect detection device in one embodiment of the present application.

[0024] Figure 6 Schematic diagram of the flow of a method for detecting appearance defects in one embodiment of the present application.

[0025] Main component symbols

[0026] Appearance surface defect detection device 100

[0027] Transplanting mechanism 10

[0028] Turntable 11

[0029] Carrier 12

[0030] Profile hole 121

[0031] Connecting seat 122

[0032] Guide rod 123

[0033] Sliding part 1231

[0034] Supporting part 1232

[0035] Sliding plate 124

[0036] Connection block 125

[0037] Elastic member 126

[0038] The first detection mechanism 20

[0039] The first support frame 21

[0040] Chute 211

[0041] Slide 212

[0042] Coaxial light source 22

[0043] First Window 221

[0044] The first irradiation end 222

[0045] The first imaging device 23

[0046] First Shot 231

[0047] First Camera 232

[0048] Second detection mechanism 30

[0049] The second support frame 31

[0050] Ring light 32

[0051] Second window 321

[0052] The second irradiation end 322

[0053] Second imaging mechanism 33

[0054] Second shot 331

[0055] Second camera 332

[0056] Positioning mechanism 50

[0057] Adsorption parts 51

[0058] Driving member 52

[0059] Card block 521

[0060] Card slot 5211

[0061] Power parts 522

[0062] Product 90

[0063] Appearance surface 91.

[0064] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0066] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0068] An embodiment of the present application provides an appearance surface defect detection device for detecting defects on the appearance surface of a product, comprising: a transplanting mechanism, for carrying a product and driving the product to move; a first detection mechanism, disposed within the path range through which the transplanting mechanism drives the product to move, the first detection mechanism being used to irradiate the product with a detection light perpendicular to the appearance surface, and to capture an image of the appearance surface to generate a first image; a second detection mechanism, disposed within the path range through which the transplanting mechanism drives the product to move, the second detection mechanism being used to irradiate the product with a detection light surrounding the edge of the appearance surface and inclined to the appearance surface, and to capture an image of the appearance surface to generate a second image; a processing mechanism, communicatively connected to the first detection mechanism and the second detection mechanism, and used to respectively perform defect judgment on the first image and the second image of the same product.

[0069] The embodiment of the present application provides a method for detecting appearance defects, which is applied to the above-mentioned appearance defect detection device, and comprises the following steps:

[0070] Collect image samples of product surfaces with defects;

[0071] Classifying and labeling defects in the image sample;

[0072] The initial defect recognition model is trained using the labeled image samples to obtain a trained defect recognition model;

[0073] An image to be identified is acquired, and the image to be identified is input into the defect identification model to determine whether the image to be identified has defects.

[0074] In the above-mentioned appearance surface defect detection device and detection method, the first detection mechanism irradiates the product with detection light perpendicular to the appearance surface, and the second detection mechanism irradiates the product with detection light surrounding the edge of the appearance surface and inclined to the appearance surface, so as to highlight different types of defects appearing in the appearance surface, and make the defects clearly displayed in the first image and the second image, thereby improving the detection accuracy of the appearance surface defect detection device. The first image and the second image of the same product are respectively imported into the defect recognition model by the processing mechanism to perform defect judgment, thereby realizing the function of the appearance surface defect detection device to automatically detect the defects of the appearance surface of the product, which reduces the intensity of manual work and improves the detection accuracy compared with the existing manual detection method.

[0075] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0076] See also Figure 1 , Figure 1 The schematic diagram of the structure of the appearance surface defect detection device in one embodiment of the present application is as follows: The appearance surface defect detection device 100 of the present embodiment is used to detect defects on the appearance surface 91 of the product 90, such as defects on the highlight plane.

[0077] The appearance surface defect detection device 100 includes a transplanting mechanism 10, a first detection mechanism 20, a second detection mechanism 30 and a processing mechanism (not shown). The transplanting mechanism 10 is used to carry the product 90 and drive the product 90 to move. The first detection mechanism 20 is arranged within the path range through which the transplanting mechanism 10 drives the product 90 to move. The first detection mechanism 20 is used to irradiate the product 90 with a detection light perpendicular to the appearance surface 91 and having a parallel light path, and to collect an image of the appearance surface 91 to generate a first image. The second detection mechanism 30 is arranged within the path range through which the transplanting mechanism 10 drives the product 90 to move. The second detection mechanism 30 is used to irradiate the product 90 with a detection light surrounding the edge of the appearance surface 91 and inclined to the appearance surface 91, and to collect an image of the appearance surface 91 to generate a second image. The processing mechanism is communicatively connected to the first detection mechanism 20 and the second detection mechanism 30, and is used to perform defect judgment on the first image and the second image of the same product 90 respectively.

[0078] During use of the above-mentioned appearance surface defect detection device 100, the product 90 is loaded on the transfer mechanism 10, and the transfer mechanism 10 drives the product 90 to pass through the first detection mechanism 20 and the second detection mechanism 30 in sequence. When the product 90 passes through the first detection mechanism 20, since the detection light is vertically irradiated on the appearance surface 91, the detection light at the flawless part of the appearance surface 91 is reflected to the first detection mechanism 20 along the original path, and the detection light at the flawed part of the appearance surface 91 is reflected to other places, so as to facilitate the detection of the inner layer of the appearance surface 91, such as the inner layer of the highlight plane, so as to highlight the dark lines, pits, unpolished and other defects appearing on the appearance surface 91. This causes the pixel values ​​in the first image generated by the first detection mechanism 20 to differ.

[0079] When the product 90 passes through the second detection mechanism 30, since the detection light surrounds the edge of the appearance surface 91 and is inclined to the appearance surface 91, the detection light illuminates an area by diffuse reflection, highlighting the edge and height changes of the appearance surface 91, so as to facilitate the detection of the surface of the appearance surface 91, such as the outer surface of the highlight plane, so as to highlight the scratches, scratches, material lines, bright lines, dirt, dust and other defects on the appearance surface 91. This makes the image in the second image generated by the second detection mechanism 30 different.

[0080] The processing mechanism imports the first image and the second image of the same product 90 into the defect recognition model respectively for defect judgment. When the first image or the second image matches any image sample with defects in the defect recognition model, it is judged that there is a defect on the appearance surface of the product 90; when the first image and the second image do not match any image sample with defects in the defect recognition model, it is judged that there is no defect on the appearance surface of the product 90.

[0081] It is understandable that in other embodiments, the transplanting mechanism 10 drives the product 90 to pass through the second detection mechanism 30 and the first detection mechanism 20 in sequence.

[0082] The above-mentioned appearance surface defect detection device 100 irradiates the product 90 with detection light perpendicular to the appearance surface 91 through the first detection mechanism 20, and irradiates the product 90 with detection light surrounding the edge of the appearance surface 91 and inclined to the appearance surface 91 through the second detection mechanism 30, so as to highlight different types of defects appearing in the appearance surface 91, and make the defects clearly displayed in the first image and the second image, thereby improving the detection accuracy of the appearance surface defect detection device 100. The first image and the second image of the same product 90 are respectively imported into the defect recognition model through the processing mechanism to perform defect judgment, thereby realizing the function of the appearance surface defect detection device 100 to automatically detect the defects of the appearance surface 91 of the product 90, which reduces the intensity of manual work and improves the detection accuracy compared with the existing manual detection method.

[0083] See also Figure 2 , Figure 2 It is a schematic diagram of the structure of the first detection mechanism in the appearance surface defect detection device in one embodiment of the present application. The first detection mechanism 20 of this embodiment includes a first support frame 21, a coaxial light source 22 and a first imaging mechanism 23. The first support frame 21 is arranged on the side of the transplanting mechanism 10, the coaxial light source 22 is used to irradiate the product 90 with a detection light perpendicular to the appearance surface 91, and the first imaging mechanism 23 is used to capture an image of the appearance surface. The coaxial light source 22 and the first imaging mechanism 23 are adjustably connected to the first support frame 21, so as to adjust the spacing and angle between the coaxial light source 22, the first imaging mechanism 23 and the transplanting mechanism 10, thereby facilitating the image capture of the appearance surface 91 to generate a clear first image.

[0084] In some embodiments, the first support frame 21 is provided with a slide groove 211, and the slide groove 211 is arranged in a direction perpendicular to the bearing surface of the transplanting mechanism 10. The coaxial light source 22 and the first imaging mechanism 23 are slidably arranged in the slide groove 211 through the slide seat 212, so as to adjust the distance between the coaxial light source 22 and the first imaging mechanism 23 and the product 90 on the bearing surface of the transplanting mechanism 10.

[0085] In some embodiments, the coaxial light source 22 is provided with a first window 221 and a first irradiation end 222, and the first imaging mechanism 23 captures an image of the exterior surface 91 through the first window 221. The first irradiation end 222 is disposed around the opening of the first window 221 toward the transplanting mechanism 10, and is used to irradiate the product 90 with a detection light perpendicular to the exterior surface 91, and prevent the coaxial light source 22 from blocking the image acquisition path of the first imaging mechanism 23. In some embodiments, the first window 221 is rectangular, and the first irradiation end 222 is a rectangular frame.

[0086] In some embodiments, the first imaging mechanism 23 includes a first lens 231 and a first camera 232. The first lens 231 is used to magnify the appearance surface 91, and the first camera 232 is used to capture the appearance surface 91 magnified by the first lens 231 and generate a first image. The appearance surface 91 is magnified by the first lens 231 to improve the clarity of the first image, thereby improving the detection accuracy. It is understandable that in some embodiments, the first lens 231 and the first camera 232 can be replaced by an integrated magnifying camera.

[0087] The above-mentioned appearance surface defect detection device 100 adjusts the spacing and angles between the coaxial light source 22, the first imaging mechanism 23 and the transplanting mechanism 10 through the first support frame 21, so as to facilitate image acquisition of the appearance surface 91 to generate a clear first image. The first lens 231 is used to magnify the appearance surface 91 to improve the clarity of the first image, thereby improving the detection accuracy.

[0088] See also Figure 3 , Figure 3 It is a schematic diagram of the structure of the second detection mechanism in the appearance surface defect detection device in one embodiment of the present application. The second detection mechanism 30 of this embodiment includes a second support frame 31, an annular light source 32 and a second imaging mechanism 33. The second support frame 31 is arranged on the peripheral side of the transplanting mechanism 10, the annular light source 32 is used to irradiate the product 90 with a detection light surrounding the edge of the appearance surface 91 and inclined to the appearance surface 91, and the second imaging mechanism 33 is used to capture an image of the appearance surface. The annular light source 32 and the second imaging mechanism 33 are adjustably connected to the second support frame 31, so as to adjust the spacing and angle between the annular light source 32, the second imaging mechanism 33 and the transplanting mechanism 10, thereby facilitating the image capture of the appearance surface 91 to generate a clear second image.

[0089] In some embodiments, the second support frame 31 has a similar structure to the first support frame 21 , and the annular light source 32 and the second imaging mechanism 33 are both slidably connected to the second support frame 31 via a slide, which will not be described in detail herein.

[0090] In some embodiments, the annular light source 32 is provided with a second window 321 and a second irradiation end 322, and the second imaging mechanism 33 captures an image of the exterior surface 91 through the second window 321. The second irradiation end 322 is arranged around the opening of the second window 321 on the side of the transplanting mechanism 10, and irradiates the exterior surface 91 at an oblique angle, so as to irradiate the product 90 with the detection light surrounding the edge of the exterior surface 91 and oblique to the exterior surface 91, and prevent the annular light source 32 from blocking the image acquisition path of the second imaging mechanism 33. In some embodiments, the second window 321 is circular, and the first irradiation end 222 is annular.

[0091] In some embodiments, the second imaging mechanism 33 includes a second lens 331 and a second camera 332 . The structure of the second imaging mechanism 33 is similar to that of the first imaging mechanism 23 , and will not be described in detail herein.

[0092] The above-mentioned appearance surface defect detection device 100 adjusts the spacing and angles between the annular light source 32, the second imaging mechanism 33 and the transplanting mechanism 10 through the second support frame 31, thereby facilitating image acquisition of the appearance surface 91 to generate a clear second image. The second lens 331 is used to magnify the appearance surface 91 to improve the clarity of the second image, thereby improving the detection accuracy.

[0093] See also Figure 4 , Figure 4 Schematic diagram of the structure of the transfer mechanism and the positioning mechanism in the appearance surface defect detection device in one embodiment of the present application. The transfer mechanism 10 of this embodiment includes a turntable 11 and a plurality of carriers 12. The carriers 12 are arranged at the outer edge of the turntable 11 along the circumferential direction of the turntable 11, and each carrier 12 is provided with a profiling hole 121, which is adapted to the product 90 and is used to carry the product 90. The turntable 11 rotates to drive the product 90 on the carrier 12 to pass through the first detection mechanism 20 and the second detection mechanism 30.

[0094] In some embodiments, the carriers 12 are arranged at equal intervals on the outer edge of the turntable 11 along the circumferential direction of the turntable 11, so as to control the rotation distance of each carrier 12 through the turntable 11. In some embodiments, the number of the carriers 12 is 16, and the central angle between two adjacent carriers 12 is 22.5°. In other embodiments, the number of the carriers 12 can be one of 2, 3, 4, 5, 6, 7, 32, 64, etc.

[0095] During the use of the above-mentioned appearance surface defect detection device 100, a product 90 is loaded into the profiling hole 121, and the turntable 11 rotates to drive the product 90 to pass through the first detection mechanism 20 and the second detection mechanism 30. During the detection of the product 90, the staff at the loading station loads the remaining products 90 in other profiling holes 121. When the product 90 is inspected, the turntable 11 rotates to drive the product 90 to be removed from the second detection mechanism 30, and the staff at the unloading station takes out and classifies the product 90. Through the above-mentioned cyclic human-machine cooperation, the detection efficiency is effectively improved. In addition, by setting up multiple detection mechanisms and loading and unloading stations, not only the scalability of the appearance surface defect detection device is improved, but also the detection efficiency of the equipment is improved.

[0096] It can be understood that, in other embodiments, the turntable 11 can be replaced by a conveyor belt, which is arranged along a straight line or an arc conveying path.

[0097] Please continue reading Figure 4 The appearance surface defect detection device 100 of this embodiment further includes two positioning mechanisms 50. One of the positioning mechanisms 50 is arranged opposite to the first detection mechanism 20, and the other positioning mechanism 50 is arranged opposite to the second detection mechanism 30. The turntable 11 drives the carrier 12 to move between the first detection mechanism 20 and the corresponding positioning mechanism 50, and between the second detection mechanism 30 and the corresponding positioning mechanism 50. The positioning mechanism 50 sucks and levels the product 90 in the profiling hole 121 through the profiling hole 121, so that the appearance surface 91 of the product 90 remains horizontal relative to the first detection mechanism 20 and the second detection mechanism 30, thereby avoiding image acquisition errors caused by the tilt of the appearance surface 91, thereby improving the detection accuracy.

[0098] In some embodiments, each carrier 12 is slidably connected to the edge of the turntable 11. Each positioning mechanism 50 includes an adsorption member 51 and a driving member 52. The adsorption member 51 is arranged opposite to the first detection mechanism 20 or the second detection mechanism 30, and is used to suck and level the product 90 in the contour hole 121. The driving member 52 is used to clamp the carrier 12 between the first detection mechanism 20 or the second detection mechanism 30 and the corresponding adsorption member 51, and drive the carrier 12 to move toward the adsorption member 51, so that the product 90 loaded in the contour hole 121 contacts the adsorption end of the adsorption member 51, thereby improving the effect of suction and leveling.

[0099] See also Figure 5 , Figure 5 It is an enlarged structural diagram of the transplanting mechanism and the positioning mechanism in the appearance surface defect detection device in one embodiment of the present application. Specifically, each supporting member 12 includes a connecting seat 122, a guide rod 123, a sliding plate 124, a connecting block 125 and an elastic member 126. The connecting seat 122 is arranged at the outer edge of the turntable 11 along the circumferential direction of the turntable 11. The guide rod 123 is provided with a sliding portion 1231 and a supporting portion 1232, the sliding portion 1231 is used for sliding connection to the connecting seat 122, and the supporting portion 1232 is used for supporting the connecting seat 122. The sliding plate 124 is fixed to the end of the sliding portion 1231, and the sliding plate 124 is provided with a contoured hole 121 for carrying the product 90. The connecting block 125 is fixed to the end of the supporting portion 1232, and one side of the connecting block 125 extends outward in a direction parallel to the plane where the turntable 11 is located. The elastic member 126 is sleeved on the sliding portion 1231 and disposed between the connecting seat 122 and the sliding plate 124 , and abuts the sliding plate 124 in a direction away from the connecting seat 122 , and makes the abutting portion 1232 abut against the connecting seat 122 .

[0100] The driving member 52 includes a clamping block 521 and a power member 522. The clamping block 521 is connected to the transmission end of the power member 522 and is lifted and lowered by the power member 522. The clamping block 521 is provided with a clamping groove 5211, which is located within the path range of the connection block 125 rotation.

[0101] When the carrier 12 rotates to between the adsorption member 51 and the first detection mechanism 20, the connecting block 125 rotates to the clamping groove 5211. At this time, the power member 522 drives the clamping block 521 and the connecting block 125 to descend, and the connecting block 125 drives the sliding plate 124 to descend through the guide rod 123, so that the sliding plate 124 moves toward the adsorption member 51, thereby making the product 90 loaded in the contour hole 121 contact with the adsorption end of the adsorption member 51, thereby improving the effect of suction and leveling. After the detection is completed, the power member 522 drives the clamping block 521 and the connecting block 125 to rise, and the connecting block 125 drives the sliding plate 124 to rise through the guide rod 123, so that the sliding plate 124 is reset, and the rotating disk 11 rotates to drive the connecting block 125 to move out of the clamping groove 5211. Similarly, when the carrier 12 rotates to between the adsorption member 51 and the second detection mechanism 30, the cooperation between the carrier 12 and the positioning mechanism 50 is consistent with the above.

[0102] In the above-mentioned appearance surface defect detection device 100, the driving member 52 is used to make the product 90 loaded in the contour hole 121 contact with the adsorption end of the adsorption member 51, and the adsorption member 51 sucks and levels the product 90 in the contour hole 121, so that the appearance surface 91 of the product 90 is kept horizontal relative to the first detection mechanism 20 and the second detection mechanism 30, thereby avoiding image acquisition errors caused by the tilt of the appearance surface 91, thereby improving the detection accuracy.

[0103] Some embodiments of the present application are described in detail below.

[0104] In some embodiments, the processing mechanism includes a display (not shown). While the processing mechanism imports the first image and the second image of the same product 90 into the defect recognition model for defect judgment, it imports the first image and the second image of the same product 90 into the display for display to facilitate simultaneous inspection by staff.

[0105] See also Figure 6 , Figure 6 1 is a flow chart of a method for detecting appearance defects in an embodiment of the present application. The method for detecting appearance defects in the present embodiment is applied to the above-mentioned device for detecting appearance defects 100. Specifically, the following steps are included:

[0106] S1, collecting image samples of the appearance surface 91 of the product 90 with defects;

[0107] S2, classifying and labeling defects in the image sample;

[0108] S3, using the labeled image samples to train the initial defect recognition model to obtain a trained defect recognition model;

[0109] S4, obtaining an image to be identified, and inputting the image to be identified into a defect recognition model to determine whether the image to be identified has defects.

[0110] Specifically in this embodiment, the processing mechanism imports the first image and the second image of the same product 90 into the defect recognition model for defect judgment to determine whether the image to be recognized has defects. When the first image or the second image matches any image sample with defects in the defect recognition model, it is judged that there is a defect on the appearance of the product 90; when the first image and the second image do not match any image sample with defects in the defect recognition model, it is judged that there is no defect on the appearance of the product 90.

[0111] In the above-mentioned appearance surface defect detection method, by applying the defect recognition model, the appearance surface defect detection device 100 realizes the function of automatically detecting defects on the appearance surface 91 of the product 90, and improves the appearance surface defect recognition and classification capabilities of the appearance surface defect detection device 100. Compared with the existing manual detection method, the manual work intensity is reduced and the detection accuracy is improved.

[0112] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as limitations on the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. An appearance surface defect detection device for detecting defects on the appearance surface of a product, characterized in that: include: A transplanting mechanism, used for carrying the product and driving the product to move; A first detection mechanism is disposed within a path range through which the product is moved by the transplanting mechanism, and is used to irradiate the product with a detection light perpendicular to the appearance surface, and to capture an image of the appearance surface to generate a first image; A second detection mechanism is disposed within the path through which the product is moved by the transplanting mechanism, and is used to irradiate the product with a detection light surrounding the edge of the appearance surface and inclined to the appearance surface, and to capture an image of the appearance surface to generate a second image; a processing mechanism, communicatively connected to the first detection mechanism and the second detection mechanism, for respectively performing defect determination on the first image and the second image of the same product; The transplanting mechanism includes a turntable and a plurality of bearing members, wherein the bearing members are arranged at the outer edge of the turntable along the circumferential direction of the turntable, and each of the bearing members is provided with a profile hole, and the profile hole is adapted to the product and is used to carry the product; The appearance surface defect detection device further includes two positioning mechanisms, one of which is arranged opposite to the first detection mechanism, and the other is arranged opposite to the second detection mechanism, the turntable drives the carrier to move between the first detection mechanism and the corresponding positioning mechanism, and between the second detection mechanism and the corresponding positioning mechanism, and the positioning mechanism sucks and levels the appearance surface in the profiling hole through the profiling hole; Each of the supporting members is slidably connected to the edge of the turntable, and each of the positioning mechanisms includes an adsorption member and a driving member. The adsorption member is arranged opposite to the first detection mechanism or the second detection mechanism, and the driving member is used to clamp the supporting member between the first detection mechanism or the second detection mechanism and the corresponding adsorption member, and drive the supporting member to move toward the adsorption member.

2. The appearance surface defect detection device according to claim 1, characterized in that: The first detection mechanism includes a first support frame, a coaxial light source and a first imaging mechanism. The first support frame is arranged on the periphery of the transplanting mechanism. The coaxial light source and the first imaging mechanism are adjustably connected to the first support frame. The coaxial light source is used to irradiate the product with detection light perpendicular to the appearance surface, and the first imaging mechanism is used to capture an image of the appearance surface.

3. The appearance surface defect detection device according to claim 2, characterized in that: The first imaging mechanism includes a first lens and a first camera. The first lens is used to magnify the appearance surface, and the first camera is used to capture the appearance surface magnified by the first lens and generate the first image.

4. The appearance surface defect detection device according to claim 1, characterized in that: The second detection mechanism includes a second support frame, an annular light source and a second imaging mechanism. The second support frame is arranged on the periphery of the transplanting mechanism. The annular light source and the second imaging mechanism are adjustably connected to the second support frame. The annular light source is used to irradiate the product with detection light surrounding the edge of the appearance surface and inclined to the appearance surface. The second imaging mechanism is used to capture an image of the appearance surface.

5. The appearance surface defect detection device according to claim 4, characterized in that: The second imaging mechanism includes a second lens and a second camera. The second lens is used to magnify the appearance surface. The second camera is used to capture the appearance surface magnified by the second lens and generate the second image.

6. The appearance surface defect detection device according to claim 1, characterized in that: The bearing members are arranged at equal intervals on the outer edge of the turntable along the circumferential direction of the turntable.

7. A method for detecting appearance defects, applied to the appearance defect detection device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Collect image samples of product surfaces with defects; Classifying and labeling defects in the image sample; The initial defect recognition model is trained using the labeled image samples to obtain a trained defect recognition model; An image to be identified is acquired, and the image to be identified is input into the defect identification model to determine whether the image to be identified has defects.

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