An easy-to-use LED module defect detection system

Abstract

The present invention belongs to the technical field of LED modules, and in particular, is an LED module defect detection system that is easy to operate and use. The following scheme is proposed, including a base plate, a bracket is arranged on the top of the base plate, a push unit 1 fixedly connected to the bracket, a detection component installed at the bottom output end of the push unit 1, an extension shaft arranged at the bottom of one side of the detection component, and a switching mechanism arranged at the bottom of the base plate and fixedly connected to the extension shaft. One side of the base plate is penetrated by a conveying channel arranged along its length direction, and the conveying channel is slidably connected to a conveying support plate connected to the switching mechanism. The present invention realizes the detection operation of the defects of the LED module, realizes the synchronous loading and unloading detection operation during the detection process, positions and clamps the LED module during the detection, and isolates the external light and the interfering light during the detection, reduces the interference of light on the detection, and improves the detection accuracy. At the same time, the detected defect points can be marked to facilitate the subsequent maintenance of the LED module.

Description

Technical Field

[0001] The present invention relates to the technical field of LED modules, and in particular to an LED module defect detection system that is easy to operate and use. Background Art

[0002] At present, the mainstream mini / micro-LED module display screen inspection at home and abroad mainly uses machine vision technology to inspect the fully packaged LED screen to determine the quality of its imaging effect. In the existing inspection technology, both external light and the light of the module itself will cause light interference to the collector during the inspection process, resulting in large inspection errors and high inspection failure rates. At the same time, it is not convenient to mark the defective position during the inspection process, and it is not convenient to repair the module later. In order to overcome the above problems, a LED module defect detection system that is easy to operate and use is needed. Summary of the invention

[0003] The present invention provides an LED module defect detection system that is easy to operate and use, and solves the problems existing in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A LED module defect detection system that is easy to operate and use, comprising a base plate, a bracket is arranged on the top of the base plate, a pushing unit 1 fixedly connected to the bracket, a detection component installed at the bottom output end of the pushing unit 1, an extension shaft is arranged at the bottom of one side of the detection component, and a switching mechanism is arranged at the bottom of the base plate and fixedly connected to the extension shaft. One side of the base plate is penetrated by a conveying channel arranged along its length direction, and the conveying channel is slidably connected to a conveying support plate connected to the switching mechanism; the detection component comprises a cover shell with an opening at the bottom fixedly connected to the bottom output end of the pushing unit 1, a blocking layer arranged in a C shape inside the cover shell, a detection mechanism fixedly connected to the two ends of the bottom of the blocking layer, a clamping mechanism arranged on both sides of the bottom of the detection mechanism, and a positioning and opening mechanism arranged between the two groups of clamping mechanisms and fixedly connected to the cover shell, and a pushing unit 2 arranged at the top of the detection mechanism and fixed to the cover shell.

[0006] Preferably, the detection mechanism includes an isolation box with an opening at the bottom fixedly connected to the bottom output end of the pushing unit 2, the bottom ends of the two sides of the isolation box are fixedly connected to the bottom ends adjacent to the barrier layer, the top inner wall of the isolation box is fixedly connected to the pushing unit 3, a collector fixedly connected to the bottom output end of the pushing unit 3, and a transmission unit arranged on one side of the bottom output end of the pushing unit 3, a horizontal plate slidably connected to the transmission unit, a moving unit slidably sleeved on the other end of the horizontal plate and fixed to the inner wall of the isolation box, an adjustment rod slidably connected to the bottom of the horizontal plate, and a marking unit installed at the bottom of the adjustment rod, and the inner wall of the isolation box is provided with a guide unit slidably connected to the adjustment rod.

[0007] Preferably, the transmission unit includes a rack 1 fixedly connected to the bottom output end of the pushing unit 3, the top of the other side of the rack 1 is meshed with a gear 1 movably connected to the isolation box, the other side of the gear 1 is meshed with a rack 2, the other side of the rack 2 is slidably connected to a guide plate with a U-shaped cross-section fixed to the inner wall of the top of the isolation box, and the bottom of the rack 2 is provided with a slide groove 1 arranged along its width direction, and the slide groove 1 is slidably connected to the cross plate.

[0008] Preferably, the moving unit comprises a moving plate with a U-shaped cross-section and slidably connected to the transverse plate, and a pushing unit 4 fixedly connected to the inner side wall of the isolation box is installed on the top of the moving plate.

[0009] Preferably, the adjusting rod is fixedly sleeved with a driven rod slidably connected to the guide unit, and the bottom of the adjusting rod is provided with a docking hole slidably sleeved with the marking unit, a driving channel with a spiral structure in the inner circle of the docking hole, and buffer channels arranged in the vertical direction at both ends of the driving channel.

[0010] Preferably, the marking unit includes a butt joint tube slidably sleeved on the bottom of the adjusting rod, an extension plate of a hollow structure fixed to the bottom of the butt joint tube, an active rod movably sleeved on the inner ring of the butt joint tube, an adjustment block fixed to the top of the active rod and slidably connected to the adjusting rod, a rotating plate of an L-shaped structure movably sleeved on the bottom of the other end of the extension plate, and a marking pen connected to the rotating plate. A connecting unit located inside the extension plate is installed between the active rod and the rotating plate, and the connecting unit adopts a chain sprocket transmission mechanism.

[0011] Preferably, the guide unit includes a guide channel 1 opened on the inner wall of the isolation box and arranged in the vertical direction, a guide channel 2 arranged at the bottom of the guide channel 1 and inclined downward toward the collector, and a guide channel 3 arranged at the bottom of the guide channel 2 and arranged vertically downward.

[0012] Preferably, the transfer mechanism includes a rotating sleeve movably connected to the bottom of the base plate, the inner ring of the rotating sleeve is fixedly connected to a push rod, the outer ring of the extension shaft is provided with a driving channel 1 of a spiral structure slidably connected to the push rod, both ends of the driving channel 1 are provided with a buffer channel 2 arranged in the vertical direction, the outer ring of the rotating sleeve is fixedly connected to a bevel gear 1, one side of the bevel gear 1 is meshed with a bevel gear 2, the inner ring of the bevel gear 2 is fixedly connected to a screw, and a slider fixed to the bottom of the conveying pallet is installed at the output end of the screw.

[0013] In the present invention,

[0014] By arranging the base plate, bracket, detection assembly, extension shaft, transfer mechanism, conveying channel, conveying pallet, cover, barrier layer, detection mechanism, pushing unit 2, positioning and opening mechanism, clamping mechanism, isolation box, pushing unit 3, collector, transmission unit, cross plate, adjustment rod, moving unit, marking unit, guide unit, driven rod, extension plate, rotating plate, marking pen, docking tube, active rod, adjustment block, docking hole, buffer channel, drive channel, guide channel 1 and guide channel 2, the design realizes the detection operation of the defects of the LED module, realizes the synchronous loading and unloading detection operation during the detection process, positions and clamps the LED module during detection, isolates the external light and the interfering light during detection, reduces the interference of light on detection, improves the detection accuracy, and can mark the detected defect points to facilitate the subsequent maintenance of the LED module and other operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an LED module defect detection system that is easy to operate and use proposed by the present invention;

[0016] Figure 2 A schematic diagram of the structure of a detection component of an LED module defect detection system that is easy to operate and use, as proposed by the present invention;

[0017] Figure 3 A schematic diagram of the structure of a detection mechanism of an LED module defect detection system that is easy to operate and use, proposed by the present invention;

[0018] Figure 4 A partially enlarged structural schematic diagram of an LED module defect detection system that is easy to operate and use, as proposed by the present invention;

[0019] Figure 5 This is a structural schematic diagram of an adjustment rod of an LED module defect detection system that is easy to operate and use, as proposed by the present invention.

[0020] In the figure: 1 bottom plate, 2 bracket, 3 detection component, 4 extension shaft, 5 switching mechanism, 6 conveying channel, 7 conveying tray, 31 cover shell, 32 barrier layer, 33 detection mechanism, 34 push unit two, 35 positioning opening mechanism, 36 clamping mechanism, 41 isolation box, 42 push unit three, 43 collector, 44 transmission unit, 45 cross plate, 46 adjustment rod, 47 moving unit, 48 marking unit, 49 guiding unit, 410 driven rod, 51 extension plate, 52 rotating plate, 53 marking pen, 54 docking tube, 55 active rod, 56 adjustment block, 461 docking hole, 462 buffer channel, 463 driving channel, 491 guide channel one, 492 guide channel two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-5 , a LED module defect detection system that is easy to operate and use, including a base plate 1, a bracket 2 is arranged on the top of the base plate 1, a pushing unit 1 fixedly connected to the bracket 2, a detection component 3 installed at the bottom output end of the pushing unit 1, an extension shaft 4 is arranged at the bottom of one side of the detection component 3, and a switching mechanism 5 is arranged at the bottom of the base plate 1 and fixedly connected to the extension shaft 4. A conveying channel 6 arranged along its length direction passes through one side of the base plate 1, and the conveying channel 6 is slidably connected to a conveying support plate 7 connected to the switching mechanism 5; the detection component 3 includes a cover shell 31 with an opening at the bottom fixedly connected to the bottom output end of the pushing unit 1, a barrier layer 32 arranged in a C shape inside the cover shell 31, a detection mechanism 33 fixedly connected to the two ends of the bottom of the barrier layer 32, a clamping mechanism 36 arranged on both sides of the bottom of the detection mechanism 33, and a positioning and opening mechanism 35 arranged between the two groups of clamping mechanisms 36 and fixedly connected to the cover shell 31, and a pushing unit 2 34 arranged at the top of the detection mechanism 33 and fixedly connected to the cover shell 31.

[0023] Furthermore, the detection mechanism 33 includes an isolation box 41 with an opening at the bottom fixedly connected to the bottom output end of the pushing unit 2 34, the bottoms of both sides of the isolation box 41 are fixedly connected to the bottom ends adjacent to the barrier layer 32, the top inner wall of the isolation box 41 is fixedly connected to the pushing unit 3 42, a collector 43 fixedly connected to the bottom output end of the pushing unit 3 42, and a transmission unit 44 arranged on one side of the bottom output end of the pushing unit 3 42, a transverse plate 45 slidably connected to the transmission unit 44, a moving unit 47 slidably sleeved on the other end of the transverse plate 45 and fixed to the inner wall of the isolation box 41, an adjustment rod 46 slidably connected to the bottom of the transverse plate 45, and a marking unit 48 installed at the bottom of the adjustment rod 46, and a guide unit 49 slidably connected to the adjustment rod 46 is provided on the inner wall of the isolation box 41.

[0024] Specifically, the transmission unit 44 includes a rack 1 fixedly connected to the bottom output end of the pushing unit 3 42, the top of the other side of the rack 1 is meshed with a gear 1 movably connected to the isolation box 41, the other side of the gear 1 is meshed with a rack 2, the other side of the rack 2 is slidably connected to a guide plate with a U-shaped cross-section fixed to the inner wall of the top of the isolation box 41, the bottom of the rack 2 is provided with a slide groove 1 arranged along its width direction, and the slide groove 1 is slidably connected to the cross plate 45.

[0025] In particular, the moving unit 47 includes a moving plate with a U-shaped cross-section that is slidably connected to the transverse plate 45, and a pushing unit 4 fixedly connected to the inner wall of the isolation box 41 is installed on the top of the moving plate.

[0026] It is worth mentioning that the adjusting rod 46 is fixedly sleeved with a driven rod 410 which is slidably connected to a guide channel 491 of a guiding unit 49, and the bottom of the adjusting rod 46 is provided with a docking hole 461 which is slidably sleeved with a docking tube 54 of a marking unit 48, a driving channel 463 with a spiral structure provided in the inner circle of the docking hole 461, and buffer channels 462 which are arranged in a vertical direction at both ends of the driving channel 463, and the driving channel 463 is slidably connected to the adjustment block 56.

[0027] In addition, the marking unit 48 includes a docking tube 54 slidably sleeved on the bottom of the adjusting rod 46, an extension plate 51 with a hollow structure fixed to the bottom of the docking tube 54, an active rod 55 movably sleeved on the inner circle of the docking tube 54, an adjustment block 56 fixed to the top of the active rod 55 and slidably connected to the adjusting rod 46, an L-shaped rotating plate 52 movably sleeved on the bottom of the other end of the extension plate 51, and a marking pen 53 connected to the rotating plate 52. A connecting unit located inside the extension plate 51 is installed between the active rod 55 and the rotating plate 52, and the connecting unit adopts a chain sprocket transmission mechanism.

[0028] In addition, the guide unit 49 includes a guide channel 1 491 opened on the inner wall of the isolation box 41 and arranged in the vertical direction, a guide channel 2 492 arranged at the bottom of the guide channel 1 491 and inclined downward toward the collector 43, and a guide channel 3 arranged at the bottom of the guide channel 2 492 and arranged vertically downward.

[0029] Furthermore, the transfer mechanism 5 includes a rotating sleeve movably connected to the bottom of the base plate 1, the inner ring of the rotating sleeve is fixedly connected to a push rod, the outer ring of the extension shaft 4 is provided with a driving channel 1 of a spiral structure slidably connected to the push rod, and both ends of the driving channel 1 are provided with a buffer channel 2 arranged in the vertical direction, the outer ring of the rotating sleeve is fixedly connected to a bevel gear 1, one side of the bevel gear 1 is meshed with a bevel gear 2, the inner ring of the bevel gear 2 is fixedly connected to a screw, and a slider fixed to the bottom of the conveying pallet 7 is installed at the output end of the screw.

[0030] Example 1

[0031] The clamping mechanism 36 includes a pushing unit 5 fixedly connected to the isolation box 41. One end of the pushing unit 5 extending into the isolation box 41 is fixedly connected to a U-shaped clamping plate. The inner circle of the blocking layer 32 is movably connected to four groups of rotating rollers distributed in a rectangular shape and movably connected to the isolation box 41.

[0032] Example 2

[0033] The positioning and opening mechanism 35 includes a push unit 6 fixedly connected to the isolation box 41, and the end of the push unit 6 extending into the isolation box 41 is fixedly connected to a shell, and the end of the shell away from the push unit 6 is slidably sleeved with a push rod and a plug, and the end of the push rod and the plug extending into the shell is installed with a push unit 7 fixed to the shell, and the push unit 1, the push unit 3 42, the push unit 5, the push unit 6 and the push unit 7 all use push rod motors; the push unit 2 34 and the push unit 4 use linear modules, and the collector 43 uses a camera;

[0034] Working principle: when in use, firstly, the pushing unit 1 located on the bracket 2 is started, and the detection component 3 is pushed downward as a whole. When pushing, the extension shaft 4 moves downward, and at this time, the pushing rod on the switching mechanism 5 moves downward along the buffer channel 2 to the driving channel 1. Under the action of the driving channel 1, the pushing rod rotates, and then the rotating sleeve rotates. Under the action of the bevel gears 1 and 2, the screw rotates, and at this time, the detection sample placed on the conveying pallet 7 slides along the conveying channel 6 to the bottom of the detection component 3, and then the pushing rod moves to the buffer channel 2 at the bottom of the driving channel 1, and then the detection component 3 continues to move downward until the detection component 3 contacts the top of the bottom plate 1. At this time, the detection component 3 is wrapped around the outside of the detection sample to isolate it from external light;

[0035] During the detection process, first, the clamping mechanism 36 clamps the sample from both sides, then the positioning and opening mechanism 35 positions the sample and powers on the sample. When the sample is lit, the push unit 2 34 starts the detection mechanism 33 to move and start defect detection on the sample. The collector 43 moves with the push unit 2 34 to collect patterns of the lit sample, and then the pattern is processed by the controller set on one side of the bottom plate 1 and the pattern processing software installed on the controller. When a pattern defect appears on the sample, the controller controls the moving unit 47 to move the marking unit 48 to the defect position, and then the push unit 42 is started to push the collector 43 upward. Under the action of the transmission unit 44 and the guide unit 49, the marking unit 48 marks the defect position of the retaining ring.

[0036] The push unit 4 on the moving unit 47 is started, pushing the moving plate to move along the width direction of the isolation box 41, and at this time the cross plate 45 slides along the rack 2 to the defective position;

[0037] When the transmission unit 44 pushes the unit three 42 to move upward, the rack one drives the gear one to rotate and then the rack two moves downward, and then the cross plate 45 moves downward. At this time, the adjustment rod 46 at the bottom of the cross plate 45 moves downward. At this time, the driven rod 410 moves downward along the guide channel one 491 and then moves to the guide channel two 492. At this time, the driven rod 410 moves toward the bottom of the collector 43 until the marking unit 48 moves to the bottom of the collector 43. When marking, the marking pen contacts the top of the sample, and then when the adjustment rod 46 moves downward, the buffer channel 462 at the bottom of the adjustment block 56 on the active rod 55 moves toward the driving channel 463. Then, when the driving channel 463 moves, the active rod 55 rotates with the adjustment block 56, and then the rotating plate 52 rotates under the action of the connecting unit, so that the marking pen 53 rotates to draw a circle at the defect position for marking;

[0038] The isolation box 41 and the barrier layer for detecting the mark effectively prevent the light for detection from irradiating the collector 43, thereby reducing sampling errors;

[0039] This design realizes the detection operation of defects in LED modules, realizes synchronous loading and unloading detection operation during the detection process, positions and clamps the LED module during detection, and isolates external light and interfering light during detection to reduce the interference of light on detection and improve detection accuracy. At the same time, the detected defect points can be marked to facilitate subsequent maintenance and other operations on the LED module.

[0040] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An LED module defect detection system that is easy to operate and use, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is provided with a bracket (2), a pushing unit (1) fixedly connected to the bracket (2), a detection component (3) installed at the bottom output end of the pushing unit (1), an extension shaft (4) arranged at the bottom of one side of the detection component (3), and a switching mechanism (5) arranged at the bottom of the bottom plate (1) and fixedly connected to the extension shaft (4); one side of the bottom plate (1) is penetrated by a conveying channel (6) arranged along its length direction, and the conveying channel (6) is slidably connected to a conveying support plate (7) connected to the switching mechanism (5); the detection component (3) ) comprises a cover shell (31) with an opening at the bottom fixedly connected to the bottom output end of a pushing unit (31), a barrier layer (32) arranged in a C-shaped distribution inside the cover shell (31), a detection mechanism (33) fixedly connected to both ends of the bottom of the barrier layer (32), a clamping mechanism (36) arranged on both sides of the bottom of the detection mechanism (33), a positioning and opening mechanism (35) arranged between the two sets of clamping mechanisms (36) and fixedly connected to the cover shell (31), and a pushing unit (34) arranged at the top of the detection mechanism (33) and fixedly connected to the cover shell (31); The detection mechanism (33) comprises an isolation box (41) with an opening at the bottom fixedly connected to the bottom output end of the second pushing unit (34), the bottoms of both sides of the isolation box (41) are fixedly connected to the bottom ends adjacent to the barrier layer (32), the top inner side wall of the isolation box (41) is fixedly connected to the third pushing unit (42), a collector (43) fixedly connected to the bottom output end of the third pushing unit (42), a transmission unit (44) arranged on one side of the bottom output end of the third pushing unit (42), a horizontal plate (45) slidably connected to the transmission unit (44), a moving unit (47) slidably sleeved on the other end of the horizontal plate (45) and fixedly connected to the inner side wall of the isolation box (41), an adjustment rod (46) slidably connected to the bottom of the horizontal plate (45), and a marking unit (48) installed at the bottom of the adjustment rod (46), and the inner side wall of the isolation box (41) is provided with a guide unit (49) slidably connected to the adjustment rod (46); The transfer mechanism (5) comprises a rotating sleeve movably sleeved with the bottom of the base plate (1); the inner ring of the rotating sleeve is fixedly connected to a push rod; the outer ring of the extension shaft (4) is provided with a driving channel 1 of a spiral structure slidably connected to the push rod; both ends of the driving channel 1 are provided with a buffer channel 2 arranged in a vertical direction; the outer ring of the rotating sleeve is fixedly sleeved with a bevel gear 1; one side of the bevel gear 1 is meshed with a bevel gear 2; the inner ring of the bevel gear 2 is fixedly sleeved with a screw; and the output end of the screw is provided with a slider fixedly connected to the bottom of the conveying support plate (7).

2. The LED module defect detection system that is easy to operate and use according to claim 1 is characterized in that: The transmission unit (44) comprises a rack 1 fixedly connected to the bottom output end of the push unit 3 (42); a gear 1 movably sleeved with the isolation box (41) is meshed at the top of the other side of the rack 1; a rack 2 is meshed at the other side of the gear 1; a guide plate with a U-shaped cross-section fixedly connected to the inner wall of the top of the isolation box (41) is slidably connected at the other side of the rack 2; a slide groove 1 arranged along the width direction of the rack 2 is provided at the bottom of the rack 2; the slide groove 1 is slidably connected to the cross plate (45).

3. The LED module defect detection system that is easy to operate and use according to claim 1 is characterized in that: The moving unit (47) comprises a moving plate with a U-shaped cross-section that is slidably connected to the transverse plate (45), and a pushing unit 4 that is fixedly connected to the inner side wall of the isolation box (41) is installed on the top of the moving plate.

4. The LED module defect detection system that is easy to operate and use according to claim 1 is characterized in that: The adjusting rod (46) is fixedly sleeved with a driven rod (410) slidably connected to the guide unit (49); the bottom of the adjusting rod (46) is provided with a docking hole (461) slidably sleeved with the marking unit (48), a driving channel (463) with a spiral structure provided in the inner circle of the docking hole (461), and buffer channels (462) provided at both ends of the driving channel (463) in a vertical direction.

5. The LED module defect detection system that is easy to operate and use according to claim 1 is characterized in that: The marking unit (48) comprises a butt joint tube (54) slidably sleeved with the bottom of the adjustment rod (46), an extension plate (51) with a hollow structure fixed to the bottom of the butt joint tube (54), an active rod (55) movably sleeved with the inner ring of the butt joint tube (54), an adjustment block (56) fixed to the top of the active rod (55) and slidably connected to the adjustment rod (46), a rotating plate (52) with an L-shaped structure movably sleeved with the bottom of the other end of the extension plate (51), and a marking pen (53) connected to the rotating plate (52). A connecting unit located inside the extension plate (51) is installed between the active rod (55) and the rotating plate (52), and the connecting unit adopts a chain sprocket transmission mechanism.

6. The LED module defect detection system that is easy to operate and use according to claim 1 is characterized in that: The guide unit (49) comprises a guide channel 1 (491) opened on the inner wall of the isolation box (41) and arranged in the vertical direction, a guide channel 2 (492) arranged at the bottom of the guide channel 1 (491) and inclined downward in the direction of the collector (43), and a guide channel 3 arranged at the bottom of the guide channel 2 (492) and arranged vertically downward.

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