Detection device

Abstract

The utility model discloses a detection device, and belongs to the technical field of detection equipment. The detection device comprises a detection table used for placing a product; the detection unit comprises a supporting column, a transposition frame and a cleaning and brushing component, elastic downward pressing assemblies are arranged at the two opposite ends of the transposition frame respectively, the transposition frame is rotationally arranged on the supporting column, the cleaning and brushing component is arranged on one of the elastic downward pressing assemblies, and the cleaning and brushing component is used for cleaning the product. According to the utility model, dirt on the surface of a detected product can be removed before optical detection, the detection accuracy of the detection device is improved, and manual reinspection is not needed.

Description

Technical Field

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

[0002] Micro-LED is a new generation of display technology with self-luminous display characteristics. It does not require a backlight source and uses micron-scale LEDs as light-emitting pixel units. Compared with existing organic light-emitting diode (OLED) technology, Micro-LED display devices have the advantages of higher brightness, better luminous efficiency, and lower power consumption.

[0003] The prior art luminous lamp bead detection equipment adjusts the X-axis linear motion mechanism, the Y-axis linear motion mechanism and the Z-axis linear motion mechanism so that the sliding platform suitable for placing the Micro-LED circuit panel to be detected is located in the field of view of the high-resolution camera.

[0004] However, due to the presence of dirt, such as dust and other particles, on the Micro-LED circuit panel to be tested, the light-emitting detection is easily affected by the dirt on the surface of the light-emitting lamp beads, causing the light-emitting lamp bead detection equipment to judge good products as defective products, which not only reduces the detection accuracy of the light-emitting lamp bead detection equipment, but also requires manual secondary inspection of defective products, which is time-consuming and labor-intensive.

[0005] Therefore, it is urgent to provide a detection device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a detection device, which can remove dirt on the surface of the detected product and improve the detection accuracy of the detection device without manual re-inspection.

[0007] In order to achieve the above objectives, the following technical solutions are provided:

[0008] The detection device comprises:

[0009] Inspection table, used to place products;

[0010] The detection unit includes a support column, a transfer frame and a cleaning component. The opposite ends of the transfer frame are respectively provided with elastic downward pressing components. The transfer frame is rotatably set on the support column. The cleaning component is set on one of the elastic downward pressing components, and the cleaning component is used to clean the product.

[0011] As an optional scheme for the detection device, the brush cleaning component includes a first direction driving module, a brush cleaning frame and a brush cleaning roller, the first direction driving module includes a transmission frame and a first axial sliding platform capable of sliding along a first direction in the transmission frame, the brush cleaning frame is fixedly connected to the first axial sliding platform, the brush cleaning roller is rotatably arranged in the brush cleaning frame, the peripheral side surface of the brush cleaning roller is provided with bristles and a negative pressure hole group, and the brush cleaning roller is transmission-connected to the transmission frame.

[0012] As an optional scheme for the detection device, a differential shaft extending along the second direction is rotatably arranged on the brush cleaning frame, and a stationary rack extending along the first direction is arranged on the inner wall of the transmission frame. One end of the differential shaft is meshed with the stationary rack for transmission, and the other end of the differential shaft is transmission-connected to the brush cleaning roller.

[0013] As an optional solution for the detection device, a connecting frame is provided on the outer wall of the cleaning frame, and the detection unit further includes a visual detection component, which is provided on the connecting frame and is used to detect the product.

[0014] As an optional solution for the detection device, the visual detection component includes a second direction drive module, a third direction drive module and a detection component, the second direction drive module is arranged at one end of the connecting frame away from the brush cleaning frame, the third direction drive module is arranged on the second direction drive module, and the detection component includes a detection camera.

[0015] As an optional solution of the detection device, the detection component also includes a distance measuring probe and / or a marking pen.

[0016] As an optional solution for the detection device, the detection unit also includes a power supply component, which is arranged in another of the elastic downward pressure components. The power supply component is used to be electrically connected to the product. The power supply component includes a guide pressure plate, a needle table and a compression spring arranged between the guide pressure plate and the needle table. A plurality of power supply pins are provided on the needle table. The guide pressure plate is fixedly connected to one of the elastic downward pressure components.

[0017] As an optional scheme for the detection device, the elastic downward pressure assembly includes an elastic pressure column and a return spring sleeved on the elastic pressure column, and the rotation frame is provided with a limiting hole, the elastic pressure column is slidably passed through the limiting hole, and one end of the return spring abuts against the pressing plate of the elastic pressure column, and the other end of the return spring abuts against the rotation frame.

[0018] As an optional solution for the detection device, the detection device also includes a loading and unloading mechanism, which includes a material stacking rack, a fine material storage rack, a waste material storage rack, a rotating table and a material picking and unloading unit. The material stacking rack, the fine material storage rack and the waste storage rack are arranged circumferentially in sequence with the axis of the rotating table as the center, and the material picking and unloading unit is arranged on the rotating table for transporting the product.

[0019] As an optional solution for the detection device, the material picking and placing unit includes a lifting drive module, a linear telescopic part and a vacuum suction table, one end of the linear telescopic part is arranged on the lifting drive module, and the vacuum suction table is arranged on the other end of the linear telescopic part, and the vacuum suction table is used to suck materials.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The detection device provided by the utility model has a rotation frame rotatably provided on the support column, and two elastic downward pressing components are respectively provided at opposite ends of the rotation frame. The cleaning brush component is installed to the bottom of one of the elastic downward pressing components, and the product to be detected is placed on the inspection table. Before using the visual detection component to detect the surface of the luminous lamp beads, the cleaning brush component is located above the product by controlling the rotation angle of the rotation frame, and the pressure component is used to act on the elastic downward pressing component and bring the cleaning brush component close to the product. Then, the surface of the product is cleaned by the cleaning brush component to remove dirt on the surface of the detected product, thereby improving the detection accuracy of the detection device without the need for manual review. After cleaning, the pressure component is evacuated, and the cleaning brush component is reset under the action of the elastic downward pressing component, so as to facilitate visual inspection of the surface of the luminous lamp beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the assembly of the detection device in the first viewing angle in the embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the assembly of the detection device at a second viewing angle in an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the product in the embodiment of the utility model;

[0026] Figure 4It is a structural schematic diagram of the positioning code station, the detection unit and the elastic pressing component in the embodiment of the utility model;

[0027] Figure 5 It is a schematic diagram of the structure of the cleaning component, the power supply component and the elastic pressing component in the embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure in which the brush cleaning frame and the shaft shifting platform are fixedly connected in an embodiment of the utility model;

[0029] Figure 7 It is a schematic diagram of the assembly of the rotating table and the material taking and placing unit in the embodiment of the utility model;

[0030] Figure 8 It is a schematic diagram of the assembly of the second axis translation stage, the linear telescopic member and the vacuum suction stage in the embodiment of the utility model.

[0031] Reference numerals:

[0032] 100, inspection table; 200, inspection unit; 300, loading and unloading mechanism; 400, product; 401, light-emitting lamp beads; 402, electrical pin slot;

[0033] 101. Positioning code station;

[0034] 1. Support column; 2. Transfer frame; 21. Limiting hole; 3. Cleaning component; 4. Power supply component; 5. Elastic pressing component; 6. Visual inspection component; 7. Joint frame; 8. Transfer motor;

[0035] 31. Transmission frame; 32. First axis moving platform; 33. Brush cleaning rack; 34. Brush cleaning roller; 341. Brush hair; 342. Negative pressure hole group; 35. Differential shaft; 36. Stationary rack; 37. Negative pressure vacuum cleaner;

[0036] 41. Guide pressure plate; 42. Needle table; 43. Compression spring; 44. Guide column; 45. Power supply pin;

[0037] 51. elastic pressure column; 511. pressing plate; 52. return spring;

[0038] 61. Second direction driving module; 62. Third direction driving module; 63. Detection camera; 64. Distance measuring probe; 65. Marking pen;

[0039] 301. Stacking rack; 302. Fine material storage rack; 303. Waste material storage rack; 304. Rotating table; 305. Material loading and unloading unit; 3051. Lifting drive module; 30511. Second axis moving table; 3052. Linear telescopic part; 3053. Vacuum suction table; 3054. Vacuum suction cup; 3055. Vacuum pump; 306. Central control host. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do 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 the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In order to remove dirt on the surface of the detected product and improve the detection accuracy of the detection device without manual review, this embodiment provides a detection device, which is combined with Figures 1 to 8 The specific contents of this embodiment are described in detail. It should be noted that the first direction mentioned in this embodiment is Figure 4 The X direction in this embodiment is Figure 4 The third direction mentioned in this embodiment is Figure 4 The Z direction in .

[0045] like Figures 1 to 4As shown, the detection device in this embodiment includes a base, on the surface of which a loading and unloading mechanism and an inspection table 100 are respectively installed, and a positioning code table 101 is provided on the inspection table 100, and the positioning code table 101 is used to place and position the product 400. A detection unit 200 is also provided on the inspection table 100, and the detection unit 200 includes a support column 1, a transfer frame 2 and a cleaning component 3, wherein the transfer frame 2 is driven by a transfer motor 8. Elastic downward pressing components 5 are respectively provided at opposite ends of the transfer frame 2, and two elastic downward pressing components 5 are symmetrically arranged on the transfer frame 2. The transfer frame 2 is rotatably arranged on the upper end of the support column 1, and the lower end of the support column 1 is fixedly mounted on the inspection table 100. The cleaning component 3 is arranged on one of the elastic downward pressing components 5, and the cleaning component 3 is used to clean the product 400.

[0046] In short, the detection device provided in this embodiment has a rotation frame 2 rotatably provided on the support column 1, and two elastic downward pressing components 5 are respectively provided at opposite ends of the rotation frame 2. The cleaning component 3 is installed to the bottom of one of the elastic downward pressing components 5, and the product 400 to be detected is placed on the inspection table 100, and the surface of the luminous lamp bead 401 is inspected by the visual inspection component 6. The rotation angle of the rotation frame 2 is controlled so that the cleaning component 3 is located above the product 400, and the pressure component is used to act on the elastic downward pressing component 5 and bring the cleaning component 3 close to the product 400, and then the surface of the product 400 is cleaned by the cleaning component 3 to remove dirt on the surface of the inspected product 400, thereby improving the detection accuracy of the detection device without manual review. After cleaning, the pressure component is removed, and the cleaning component 3 is reset under the action of the elastic downward pressing component 5, so as to facilitate the visual inspection of the surface of the luminous lamp bead 401.

[0047] Furthermore, if Figures 2 to 6 As shown, the brush cleaning component 3 includes a first direction driving module, a brush cleaning frame 33 and a brush cleaning roller 34. The first direction driving module includes a transmission frame 31 and a first axis moving platform 32 that can slide in the transmission frame 31 along the first direction. The brush cleaning frame 33 is fixedly connected to the first axis moving platform 32. The brush cleaning roller 34 is rotatably arranged in the brush cleaning frame 33. The peripheral side of the brush cleaning roller 34 is provided with bristles 341 and a negative pressure hole group 342. The brush cleaning roller 34 is connected to the transmission frame 31 by transmission. The first direction driving module also includes a lead screw and a driving motor. The lead screw is rotatably arranged in the transmission frame 31 and is threadedly connected to the first axis moving platform 32. The first axis moving platform 32 and the brush cleaning frame 33 are driven to move in the first direction by the driving motor. The brush cleaning roller 34 drives the bristles 341 to clean the surface of the light-emitting lamp beads 401. The negative pressure hole group 342 can collect and clean the fallen stains by negative pressure. During the detection operation, the detection device can effectively physically and negatively clean the dirt on the surface of the Micro-LED circuit panel. By achieving the above-mentioned physical and negative pressure cleaning effects, the detection accuracy of the detection device is effectively improved and the detection error caused by stains on the surface of the light-emitting lamp bead 401 during detection is reduced.

[0048] For example, a dust suction chamber is provided at the axis position of the cleaning brush roller 34, six negative pressure hole groups 342 are provided in a circumferential array inside the cleaning brush roller 34, a group of bristles 341 in a circumferential array are fixedly installed on the circumferential side of the cleaning brush roller 34, and the negative pressure hole groups 342 and the bristles 341 are arranged in pairs on the surface of the cleaning brush roller 34. A negative pressure vacuum cleaner 37 is fixedly installed on the top of the cleaning brush frame 33, and the negative pressure vacuum end of the negative pressure vacuum cleaner 37 is rotatably connected to the dust suction chamber through a connecting pipe.

[0049] Specifically, a differential shaft 35 extending in the second direction is rotatably arranged on the brush rack 33, and a static rack 36 extending in the first direction is arranged on the inner wall of the transmission frame 31, and the extension direction of the static rack 36 is perpendicular to the rotation axis of the differential shaft 35, and the extension direction of the static rack 36 is parallel to the axis of the first direction driving module. One end of the differential shaft 35 is meshed with the static rack 36 for transmission, and the other end of the differential shaft 35 is belt-driven or chain-driven with the brush roller 34. A gear is arranged at one end of the differential shaft 35, and the gear is meshed with the static rack 36 for transmission. A first pulley is arranged at the other end of the differential shaft 35, and a second pulley is arranged at one end of the brush roller 34, and the first pulley and the second pulley realize power transmission through a transmission belt. When the differential shaft 35 moves along the first direction with the brush rack 33, the static rack 36 is meshed with the gear on the differential shaft 35 to make the differential shaft 35 rotate, and the brush roller 34 can be effectively rotated by the rotation of the differential shaft 35. In some application scenarios, the driving motor of the first direction driving module can rotate forward and reverse to achieve reciprocating movement of the cleaning component 3 along the first direction, thereby improving the cleaning effect on the light-emitting lamp beads 401.

[0050] Furthermore, if Figure 1 Combination Figure 4 As shown, the outer wall of the brush cleaning frame 33 is provided with a coupling frame 7, and the detection unit 200 also includes a visual detection component 6, which is arranged on the coupling frame 7, and the visual detection component 6 is used to detect the product 400. The positions of the brush cleaning component 3 and the visual detection component 6 can be changed simultaneously by rotating the indexing frame 2. In this embodiment, the coupling frame 7 is V-shaped or L-shaped. By adding the coupling frame 7, the visual detection component 6 and the brush cleaning component 3 can be respectively located on opposite sides of the support column 1. By controlling the rotation angle of the indexing frame 2, the positions of the visual detection component 6 and the brush cleaning component 3 can be switched so that the visual detection component 6 or the brush cleaning component 3 is facing the product 400 to be detected.

[0051] Furthermore, if Figure 4As shown, the visual inspection component 6 includes a second direction driving module 61, a third direction driving module 62 and a detection assembly, wherein the second direction driving module 61 is arranged at one end of the coupling frame 7 away from the brush cleaning frame 33, the third direction driving module 62 is arranged on the second direction driving module 61, and the detection assembly includes a detection camera 63. Through the first direction driving module, the second direction driving module 61 and the third direction driving module 62, the spatial movement of the detection camera 63 on the detection assembly is realized, so as to ensure that the detection camera 63 collects information on the product 400, so that the product 400 is located within the viewing angle of the detection camera 63.

[0052] Furthermore, the detection component also includes a distance measuring probe 64 and / or a marking pen 65. By adding the distance measuring probe 64, the height of the detection component can be obtained in real time, which is convenient for accurately defining the moving stroke of the driving module. By adding the marking pen 65, defective light-emitting beads 401 or products 400 can be marked to facilitate personnel identification. The marking pen 65 is a colored pen, and the marking color of the marking pen 65 can be quickly erased.

[0053] Alternatively, if Figure 4 Combination Figure 5 As shown, the detection unit 200 also includes a power supply component 4, which is arranged in another elastic pressing component 5, and the power supply component 4 is used to be electrically connected to the product 400. The power supply component 4 includes a guide pressing plate 41, a needle platform 42, and a clamping spring 43 arranged between the guide pressing plate 41 and the needle platform 42. A plurality of power supply pins 45 are arranged on the needle platform 42, and the guide pressing plate 41 is fixedly connected to one of the elastic pressing components 5. When the product 400 is tested, the elastic pressing component 5 drives the power supply component 4 to move downward, so that the power supply pin 45 of the needle platform 42 is docked with the power pin slot 402 of the product 400, so as to realize normal power supply to the product 400. Since the clamping spring 43 is arranged between the guide pressing plate 41 and the needle platform 42, on the one hand, it can buffer the impact force of the power supply pin 45 docking with the power pin slot 402, and on the other hand, by making the clamping spring 43 in a compressed state, it can increase the contact clamping force of the power supply pin 45 docking with the power pin slot 402, so as to ensure normal power supply and avoid the problem of false connection.

[0054] Furthermore, the guide pressure plate 41 is provided with a guide hole, and the power supply component 4 also includes a guide column 44, and the clamping spring 43 is sleeved on the guide column 44. The lower end of the guide column 44 is fixedly connected to the needle platform 42, and the upper end of the guide column 44 is passed through the guide hole. By adding the guide column 44 and the guide hole, the needle platform 42 can be guided to move up and down only along the third direction.

[0055] Furthermore, if Figure 5As shown, each elastic pressing component 5 includes an elastic pressing column 51 and a return spring 52 sleeved on the elastic pressing column 51, a limiting hole 21 is provided on the transfer frame 2, the limiting hole 21 extends along the third direction and passes through the transfer frame 2, the elastic pressing column 51 is slidably penetrated in the limiting hole 21, and one end of the return spring 52 abuts against the pressing plate 511 of the elastic pressing column 51, and the other end of the return spring 52 abuts against the transfer frame 2. By adding the return spring 52, on the one hand, the elastic pressing column 51 can be reset under the action of the return spring 52 after being pressed by the pressure component; on the other hand, the contact impact force of the pressure component on the upper end of the elastic pressing column 51 can be buffered to avoid damage to the surface of the product 400.

[0056] Preferably, both the limiting hole 21 and the elastic pressure column 51 are regular polygonal structures. When the elastic pressure column 51 slides along the limiting hole 21, it can not only ensure that the elastic pressure column 51 can only reciprocate along the third direction, but also inhibit the elastic pressure column 51 from rotating relative to the limiting hole 21, that is, it can prevent the elastic pressure column 51 from rotating. In this embodiment, a first flat plate for contacting the pressure component is provided at the upper end of the elastic pressure column 51, and a second flat plate for connecting with the transmission frame 31 or the guide pressure plate 41 is provided at the lower end of the elastic pressure column 51. Optionally, the pressure component in this embodiment can be an electric push rod or a downward pressing manipulator, etc., and no excessive restrictions are made here.

[0057] Preferably, the total mass of the elastic pressing assembly 5, the cleaning component 3 and the visual detection component 6 located on one side of the transfer frame 2 is a first quantity value, and the total mass of the elastic pressing assembly 5 and the power supply component 4 located on the other side of the transfer frame 2 is a second quantity value. The first quantity value is equal to the second quantity value, which ensures that the weight of the transfer frame 2 on both sides of its own rotation axis is balanced. When the transfer motor 8 drives the transfer part 2 to rotate reciprocatingly, the support column 1 will not swing, thereby ensuring the safety of the detection device.

[0058] Alternatively, if Figure 1 Combination Figure 7 and Figure 8As shown, the detection device also includes a loading and unloading mechanism 300, which is located on one side of the inspection platform 100. The loading and unloading mechanism 300 includes a material stacking rack 301, a fine material storage rack 302, a waste material storage rack 303, a rotating table 304 and a material taking and unloading unit 305. A group of regularly distributed products 400 are stacked inside the material stacking rack 301, and a central control host 306 is fixedly installed on the end face of the material stacking rack 301. The port of the distance measuring probe 64 is electrically connected to the central control host 306. An image recognition module is built into the central control host 306, and the data end of the detection camera 63 is connected to the image recognition module in communication. A plurality of light-emitting lamp beads 401 are evenly distributed on the surface of the product 400, and a group of regularly distributed power pin slots 402 are fixedly set on the surface of the product 400. The stacking rack 301, the inspection table 100, the fine material storage rack 302 and the waste material storage rack 303 are sequentially arranged in a circumferential direction with the axis of the rotating table 304 as the center, and the material taking and placing unit 305 is arranged on the rotating table 304 for conveying the product 400. The rotating table 304 drives the material taking and placing unit 305 to rotate through a set angle, and the product 400 can be transferred to the stacking rack 301, the inspection table 100, the fine material storage rack 302 or the waste material storage rack 303 according to actual needs.

[0059] Exemplarily, the stacking rack 301, the fine material rack 302, and the waste material rack 303 are arranged in a circular array within a range of 180°, and the axis of the circular array of the stacking rack 301, the fine material rack 302, and the waste material rack 303 is on the rotation axis of the rotating table 304, and the cross-sections of the stacking rack 301, the fine material rack 302, and the waste material rack 303 are all U-shaped. The fine material rack 302 is used to store good Micro-LED circuit panels, and the waste material rack 303 is used to store bad Micro-LED circuit panels.

[0060] Specifically, Figure 7 Combination Figure 8As shown, the material taking and placing unit 305 includes a lifting drive module 3051, a linear telescopic member 3052 and a vacuum suction table 3053. One end of the linear telescopic member 3052 is arranged on the second axis moving table 30511 of the lifting drive module 3051, and the vacuum suction table 3053 is arranged on the other end of the linear telescopic member 3052. The vacuum suction table 3053 is used to suck materials. By adding the lifting drive module 3051, the height of the linear telescopic member 3052 and the vacuum suction table 3053 can be changed, and by adding the linear telescopic member 3052, the lateral movement of the vacuum suction table 3053 can be achieved, which is convenient for taking and placing the product 400. The linear telescopic member 3052 in this embodiment can be, but is not limited to, an electric push rod, a negative pressure suction chamber is provided inside the vacuum suction table 3053, a vacuum pump 3055 is installed on the top surface of the vacuum suction table 3053, and the vacuum port of the vacuum pump 3055 is connected to the negative pressure suction chamber, and a group of regularly distributed vacuum suction cups 3054 connected to the negative pressure suction chamber are evenly distributed on the bottom surface of the vacuum suction table 3053. Through the arrangement of the vacuum suction cups 3054, the vacuum pump 3055 and the vacuum suction table 3053, the Micro-LED circuit panel in the material rack 301 can be quickly vacuumed. Exemplarily, in this embodiment, the first direction drive module, the second direction drive module 61, the third direction drive module 62 and the lifting drive module 3051 use a screw nut transmission mechanism.

[0061] In summary, the detection method of the detection device in this embodiment includes the following steps:

[0062] SS01, Stacking: Before the inspection, the Micro-LED circuit panels to be inspected are stacked regularly in the stacking rack 301;

[0063] SS02, parameter establishment, after step SS01, the working parameters of the loading and unloading mechanism 300 and the working parameters of the pressure component under each working condition are set according to the specifications and component arrangement of the Micro-LED circuit panel;

[0064] SS03, single board inspection, during the inspection operation, the vacuum suction cup 3054 vacuum absorbs the Micro-LED circuit screen board at the top of the stacking rack 301, and the vacuum-absorbed Micro-LED circuit screen board is accurately stacked on the positioning stacking platform 101. When the Micro-LED circuit screen board is placed on the positioning stacking platform 101, the indexing motor 8 controls the rotation angle of the indexing rack 2 to keep the top of the positioning stacking platform 101 unobstructed;

[0065] SS04, pretreatment, after step SS03, the indexing motor 8 sets the rotation angle of the indexing frame 2 so that the elastic pressure column 51 at the transmission frame 31 moves to the bottom of the pressure component. After the indexing frame 2 is rotated, the pressure component drives the elastic pressure column 51 to move down the set stroke. After the transmission frame 31 moves down the specified stroke, the surface of the bristles 341 contacts the top surface of the Micro-LED circuit panel with the set installation pressure. Then, the negative pressure vacuum cleaner 37 and the first direction driving module work synchronously. After the first direction driving module works, the first axis moving stage 32 is driven to move along the surface of the Micro-LED circuit panel at a set speed. After the negative pressure vacuum cleaner 37 works, the negative pressure hole group 342 generates a negative pressure suction force. After the first axis moving stage 32 moves back and forth for a specified period, the dirt on the surface of the LED light-emitting lamp beads 401 is cleaned.

[0066] SS05, image detection, after step S04, the indexing motor 8 drives the indexing frame 2 to rotate the needle table 42 to the bottom of the pressure component, and then the pressure component applies quantitative pressure to the elastic pressure column 51 at the needle table 42 and drives the elastic pressure column 51 to move down a specified stroke. After the elastic pressure column 51 moves down a specified stroke, each power supply pin 45 is connected to the power supply pin slot 402 at the corresponding position as a whole, and the Micro-LED circuit panel is powered. After the Micro-LED circuit panel is powered, the light-emitting lamp bead 401 performs a light-emitting operation, and the light-emitting lamp bead 401 After emitting light, the central control host 306 drives the first direction axis driving module, the second direction driving module 61 and the third direction driving module 62 to move the detection camera 63 to the upper center position of the Micro-LED circuit panel. The shooting picture of the detection camera 63 covers all the light-emitting lamp beads 401. After the position of the detection camera 63 is adjusted, all the light-emitting lamp beads 401 are imaged. The pictures collected by the light-emitting lamp beads 401 are output to the built-in image recognition module of the central control host 306 in real time. The image recognition module performs imaging analysis on the light-emitting lamp beads 401 according to the built-in algorithm;

[0067] SS06, imaging analysis, in step SS05, when the image recognition module performs image analysis, an image recognition grid is delineated with the axis of each light-emitting lamp bead 401 as the center, and each image recognition grid is evenly distributed with N pixel grids. The image recognition module collects data on the RGB value in each pixel grid. At the same time, the image recognition module is provided with a standard RGB range value of a good light-emitting lamp bead 401. When the RGB value collected by the image recognition module is within the RGB range value, the light-emitting lamp bead 401 is judged to be a good light-emitting lamp bead 401, otherwise it is a bad light-emitting lamp bead 401. Each RGB value has three judgment vector values ​​R, G, and B;

[0068] SS07, bad pixel detection, after step SS06, the image recognition module collects the RGB value of each pixel grid, and numerically arranges the three judgment vector values ​​of the RGB value in each pixel grid. When the numerical difference between the maximum judgment vector value and the minimum judgment vector value after arrangement exceeds the preset bad pixel judgment value of the image recognition module, the image recognition module determines that the light-emitting lamp bead 401 is a non-conforming light-emitting lamp bead 401 with a bad pixel;

[0069] SS08, coordinate recognition, after the image recognition module recognizes the non-conforming light-emitting bead 401, the X-axis coordinate and the Y-axis coordinate of the non-conforming light-emitting bead 401 are determined, and then the central control host 306 drives the first direction driving module, the second direction driving module 61 and the third direction driving module 62 to move the marking pen 65 to the top of the non-conforming light-emitting bead 401 and make the marking pen 65 mark the non-conforming light-emitting bead 401 with a set pressure;

[0070] SS09, unloading. After each Micro-LED circuit panel is inspected, when the inspection result of the Micro-LED circuit panel is all good products, the loading and unloading mechanism 300 will move the inspected Micro-LED circuit panel to the fine material storage rack 302. When the inspection result of the Micro-LED circuit panel is bad products, the loading and unloading mechanism 300 will move the inspected Micro-LED circuit panel to the waste material storage rack 303.

[0071] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A detection device, characterized in that: include: An inspection table (100) for placing the product (400); The detection unit (200) comprises a support column (1), a transfer frame (2) and a cleaning component (3), wherein elastic downward pressing components (5) are respectively provided at opposite ends of the transfer frame (2), the transfer frame (2) is rotatably arranged on the support column (1), and the cleaning component (3) is arranged on one of the elastic downward pressing components (5), and the cleaning component (3) is used to clean the product (400).

2. The detection device according to claim 1, characterized in that: The brush cleaning component (3) comprises a first direction driving module, a brush cleaning frame (33) and a brush cleaning roller (34); the first direction driving module comprises a transmission frame (31) and a first axis moving platform (32) capable of sliding along a first direction in the transmission frame (31); the brush cleaning frame (33) is fixedly connected to the first axis moving platform (32); the brush cleaning roller (34) is rotatably arranged in the brush cleaning frame (33); bristles (341) and a negative pressure hole group (342) are arranged on the peripheral side surface of the brush cleaning roller (34); and the brush cleaning roller (34) is transmission-connected to the transmission frame (31).

3. The detection device according to claim 2, characterized in that: A differential shaft (35) extending in the second direction is rotatably arranged on the brush cleaning frame (33), and a stationary rack (36) extending in the first direction is arranged on the inner wall of the transmission frame (31), one end of the differential shaft (35) is meshed with the stationary rack (36) for transmission, and the other end of the differential shaft (35) is transmission-connected to the brush cleaning roller (34).

4. The detection device according to claim 2, characterized in that: The outer wall of the cleaning frame (33) is provided with a connecting frame (7), and the detection unit (200) further comprises a visual detection component (6), wherein the visual detection component (6) is arranged on the connecting frame (7), and the visual detection component (6) is used to detect the product (400).

5. The detection device according to claim 4, characterized in that: The visual detection component (6) comprises a second direction driving module (61), a third direction driving module (62) and a detection assembly, wherein the second direction driving module (61) is arranged at one end of the coupling frame (7) away from the brush cleaning frame (33), the third direction driving module (62) is arranged on the second direction driving module (61), and the detection assembly comprises a detection camera (63).

6. The detection device according to claim 5, characterized in that: The detection component also includes a distance measuring probe (64) and / or a marking pen (65).

7. The detection device according to claim 1, characterized in that: The detection unit (200) further comprises a power supply component (4), wherein the power supply component (4) is arranged on another of the elastic downward pressing components (5), and the power supply component (4) is used to be electrically connected to the product (400). The power supply component (4) comprises a guide pressure plate (41), a needle platform (42), and a compression spring (43) arranged between the guide pressure plate (41) and the needle platform (42), and a plurality of power supply pins (45) are arranged on the needle platform (42). The guide pressure plate (41) is fixedly connected to one of the elastic downward pressing components (5).

8. The detection device according to claim 1, characterized in that: The elastic downward pressure component (5) comprises an elastic pressure column (51) and a return spring (52) sleeved on the elastic pressure column (51); a limiting hole (21) is provided on the transfer frame (2); the elastic pressure column (51) is slidably inserted into the limiting hole (21); one end of the return spring (52) abuts against the pressing plate (511) of the elastic pressure column (51); and the other end of the return spring (52) abuts against the transfer frame (2).

9. The detection device according to any one of claims 1 to 8, characterized in that: The detection device also includes a loading and unloading mechanism (300), the loading and unloading mechanism (300) includes a material stacking rack (301), a fine material storage rack (302), a waste material storage rack (303), a rotating table (304) and a material loading and unloading unit (305), the material stacking rack (301), the fine material storage rack (302) and the waste material storage rack (303) are circumferentially arranged in sequence with the axis of the rotating table (304) as the center, and the material loading and unloading unit (305) is arranged on the rotating table (304) for transporting the product (400).

10. The detection device according to claim 9, characterized in that: The material taking and placing unit (305) comprises a lifting drive module (3051), a linear telescopic component (3052) and a vacuum suction table (3053), wherein one end of the linear telescopic component (3052) is arranged on the lifting drive module (3051), and the vacuum suction table (3053) is arranged on the other end of the linear telescopic component (3052), and the vacuum suction table (3053) is used to suck materials.

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