An aoI detection device for OLED module

Abstract

This invention belongs to the field of AOI inspection equipment technology, specifically an AOI inspection device for OLED modules. It includes a frame, and sequentially arranged on the frame are a loading and transfer device, a flipping loading device, a barcode scanning device, an anti-static cleaning device, a visual alignment device, an AOI visual inspection device, a flipping unloading device, and a sorting unloading device. Compared with existing technologies, this AOI inspection device, through the coordinated operation of its various parts, replaces the manual loading and inspection of OLED modules, achieving automated control. While ensuring inspection accuracy, it also significantly improves production efficiency, reduces the labor intensity of workers, meets the requirements of mass production in factories, and has broad market potential.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of AOI detection equipment, and particularly relates to an AOI detection equipment for an OLED module. BACKGROUND

[0002] With the development of the automobile industry and the demand of people for travel modes, various sedans are constantly updated. In the composition of the sedan, there is an electronic component, namely a vehicle-mounted OLED display module. The production of the display module often needs a large amount of automatic equipment. Meanwhile, a large amount of visual detection equipment is also needed in the production process.

[0003] The existing automatic detection equipment is of various types and has low automation degree. Some processes still need manual operation, for example, the appearance of the measured product needs to be judged by the eyes of workers, and it is difficult to connect a complete and efficient automatic detection production line. Meanwhile, the vibration of the detection equipment caused by mechanism movement and the like will affect the photographing detection effect of the camera.

[0004] Therefore, the application provides a novel OLED module AOI detection equipment to solve the above problems. SUMMARY

[0005] The application aims to provide an AOI detection equipment for an OLED module. The AOI detection equipment is replaced by manual feeding and manual detection of the OLED module through mutual cooperation of each part, realizes automatic control of the AOI detection equipment for the OLED module, greatly improves the production efficiency and reduces the labor intensity of workers under the premise of ensuring the detection precision, meets the factory batch production requirements, and has a wide market space.

[0006] The application adopts the following technical scheme:

[0007] The AOI detection equipment for the OLED module comprises a rack, and an upper feeding and transferring device, a turnover feeding device, a code scanning device, an electrostatic cleaning device, a visual alignment device, an AOI visual detection device, a turnover discharging device and a classified discharging device which are sequentially arranged on the rack.

[0008] Further, the visual alignment device comprises a visual positioning assembly, a material transfer manipulator for conveying materials to the AOI visual detection device, and a material transfer mechanism for transferring the materials.

[0009] The material transfer manipulator transfers the material to the material transfer mechanism, the camera in the visual positioning assembly takes a photo of the material, the position information of the material is acquired by the photo, and the position information is fed back to the material transfer manipulator, the material transfer manipulator corrects the position offset through the position information of the visual positioning assembly, realizes the coarse alignment of the material, and is transferred to the AOI visual detection device.

[0010] Further, the AOI visual detection device comprises a visual detection base mounted on the rack, a visual detection gantry and a visual detection transfer mechanism mounted on the visual detection base, and a visual detection mechanism mounted on the visual detection gantry, and the visual detection base and the visual detection gantry are made of marble material.

[0011] Further, the visual detection transfer mechanism in the AOI visual detection device comprises a fourth transfer linear motor module, a positioning platform unit mounted on the fourth transfer linear motor module, and a vacuum stage mounted on the positioning platform unit.

[0012] Further, the visual detection mechanism is mounted on the visual detection gantry, and the visual detection mechanism comprises at least one set of detection units; correspondingly, each set of detection units comprises a high-precision camera assembly and a fine positioning assembly, wherein the fine positioning assembly is arranged on one side of the visual detection gantry, and each fine positioning assembly is composed of two sets of edge cameras and a set of round hole cameras, the two sets of edge cameras are arranged in a straight line and are arranged at the right edge of the material to take photos of the edge, and the round hole camera cooperates to realize fine positioning of the material.

[0013] The high-precision camera assembly is arranged on the other side of the visual detection gantry and is used for appearance detection of the material after fine positioning.

[0014] Further, the feeding transfer device comprises a feeding transfer manipulator and a feeding transfer mechanism arranged beside the feeding transfer manipulator.

[0015] The feeding transfer manipulator comprises a feeding transfer gantry, a first transfer linear module mounted on the feeding transfer gantry, a second transfer linear module mounted on the first transfer linear module, and a first feeding transfer suction cup piece mounted at the bottom of the second transfer linear module, and the sliding direction of the first transfer linear module is perpendicular to the sliding direction of the second transfer linear module; the first feeding transfer suction cup piece is used for sucking the material to realize the grabbing of the material.

[0016] Further, the feeding transfer mechanism comprises a lead screw handle assembly mounted on the rack, a feeding transfer base slidingly mounted on the lead screw handle assembly, a third transfer linear module mounted on the feeding transfer base, and a second feeding transfer suction cup piece mounted on the third transfer linear module.

[0017] The second feeding and transferring chuck member comprises a chuck support table installed on the third transferring linear module, a second chuck mounting rack installed on the chuck support table, and a second vacuum chuck arranged at the bottom of the second chuck mounting rack.

[0018] The sliding direction of the feeding and transferring base on the lead screw hand wheel assembly is perpendicular to the sliding direction of the third transferring linear module.

[0019] Further, the turnover feeding device comprises a first six-axis robot arranged around the output end of the feeding and transferring device, a turnover feeding mechanism, and a first transfer conveying mechanism.

[0020] The turnover feeding mechanism comprises a first turnover feeding linear module, a second turnover feeding linear module installed on the first turnover feeding linear module, and a turnover feeding assembly installed on the second turnover feeding linear module, and the sliding directions of the first turnover feeding linear module and the second turnover feeding linear module are perpendicular to each other. The turnover feeding assembly comprises a turnover feeding motor and a turnover feeding jig drivenly connected with the turnover feeding motor.

[0021] Further, the static electricity removing and cleaning device comprises a cleaning gantry, a cleaning and transferring mechanism installed on the cleaning gantry, and a static electricity removing and cleaning mechanism.

[0022] The cleaning and transferring mechanism is used for transferring the materials at the output end of the code scanning device to the static electricity removing and cleaning mechanism, and the static electricity removing and cleaning mechanism is used for removing static electricity and cleaning the materials.

[0023] Further, the classified discharging device comprises a transfer platform unit arranged at the output end of the turnover discharging device, a discharging and transferring unit, a TRAY disc discharging unit, and a six-axis discharging robot arranged around the transfer platform unit.

[0024] The six-axis discharging robot cooperates with the discharging and transferring unit and the TRAY disc discharging unit, and correspondingly, the materials on the transfer platform unit are classified and screened, and then placed on the discharging and transferring unit and the TRAY disc discharging unit.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] 1) The AOI detection equipment for OLED module in the application, mainly consists of feeding and transferring device, turnover feeding device, code scanning device, static electricity removing and cleaning device, visual alignment device, AOI visual detection device, turnover unloading device and classified unloading device, etc., through mutual cooperation of each part, replaces the manual feeding and manual detection mode of OLED module, realizes the automatic control of the AOI detection equipment for OLED module, can greatly improve the production efficiency and reduce the labor intensity of workers under the premise of ensuring the detection precision, meets the factory batch production requirements, has broad market space; at the same time, the visual alignment device and the AOI visual detection device are added, which can greatly improve the detection precision.

[0027] 2) The visual detection base and the visual detection gantry in the AOI visual detection device are made of marble material, which is heavy, can well reduce the vibration of the whole platform, the whole stability is good, the AOI visual detection effect is better, and the adverse effects caused by the vibration of each movement unit on the AOI visual detection device can be well reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the AOI detection equipment for OLED module of the application;

[0030] Figure 2 It is a top view of Figure 1

[0031] Figure 3 It is a schematic diagram of the structure of the feeding and transferring mechanical hand in Figure 1

[0032] It is a schematic diagram of the structure of the feeding and transferring mechanism in Figure 4 Figure 1

[0033] Figure 5 It is a schematic diagram of the structure of the first six-axis robot in Figure 1

[0034] Figure 6 It is a schematic diagram of the structure of the turnover feeding mechanism in Figure 1

[0035] Figure 7 Figure 1 ​​​​​​Structure diagram of first transfer conveying mechanism in middle stage;

[0036] Figure 8 For Figure 1 Structure diagram of electrostatic cleaning device in middle stage;

[0037] Figure 9 For Figure 1 Structure diagram of visual positioning assembly in middle stage;

[0038] Figure 10 For Figure 1 Structure diagram of AOI visual detection device in middle stage Figure 1 ;

[0039] Figure 11 For Figure 1 Structure diagram of AOI visual detection device in middle stage Figure 2 ;

[0040] Figure 12 For Figure 1 Structure diagram of unloading transfer unit in middle stage;

[0041] Figure 13 For Figure 1 Structure diagram of panoramic camera detection unit in middle stage;

[0042] Figure 14 The working flow chart of the AOI detection equipment for the OLED module is provided by the application;

[0043] Wherein: the feeding transfer device 1, the feeding transfer manipulator 10, the feeding transfer gantry 101, the first transfer linear module 102, the second transfer linear module 103, the first feeding transfer suction disc part 104, the first suction disc mounting rack 1041, the first vacuum suction disc 1042, the feeding transfer mechanism 11, the feeding transfer base 111, the third transfer linear module 112, the second feeding transfer suction disc part 113, the suction disc support table 1131, the lead screw hand wheel assembly 1134, the second suction disc mounting rack 1133, and the second vacuum suction disc 1132;

[0044] The turnover feeding device 2, the first six-axis robot 20, the turnover feeding mechanism 21, the first turnover feeding linear module 211, the second turnover feeding linear module 212, the turnover feeding assembly 213, the turnover feeding motor 2131, the turnover feeding jig 2132, the third vacuum suction disc 2133, and the first transfer conveying mechanism 22;

[0045] The code scanning device 3;

[0046] The electrostatic cleaning device 4, the cleaning gantry 40, the cleaning transfer mechanism 41, the electrostatic cleaning mechanism 42, the ion wind rod assembly 421, and the USC cleaning head assembly 422;

[0047] Visual alignment device 5, visual alignment assembly 51;

[0048] AOI visual inspection device 6, visual inspection base 60, visual inspection gantry 61, visual inspection mechanism 62, round hole camera 621, high precision camera assembly 622, edge camera 623, visual inspection transfer mechanism 63, fourth transfer linear motor module 631, vacuum stage 632;

[0049] Turnover unloading device 7, detection unloading manipulator 70, turnover unloading mechanism 71;

[0050] Classification unloading device 8, transfer platform unit 81, unloading transfer unit 82, TRAY disc unloading unit 83, six-axis unloading robot 84, panoramic camera detection unit 85, light source mounting rack 851, light source assembly 852, panoramic camera assembly 853. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the protection scope of the present application.

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the protection scope of the present application. Figure 1 to the drawings Figure 14 The present application will be described in detail below:

[0053] As shown in the accompanying drawings, Figures 1-14 The present application provides an AOI detection equipment for OLED module, which comprises a rack, and a feeding transfer device 1, a turnover feeding device 2, a code scanning device 3, an electrostatic cleaning device 4, a visual alignment device 5, an AOI visual inspection device 6, a turnover unloading device 7 and a classification unloading device 8 arranged in sequence on the rack.

[0054] The feeding and transferring device 1 transfers the material processed in the previous process to the feeding position opposite to the turnover feeding device 2; if the front of the material is upward, the turnover feeding device 2 turns over the material by 180 degrees to make the back of the material upward, and then transfers the material to the code scanning device 3; if the back of the material is upward, the turnover feeding device 2 directly transfers the material to the code scanning device 3; the code scanning device 3 scans the code of the material and then transfers the material to the position opposite to the electrostatic cleaning device 4; the electrostatic cleaning device 4 removes the static electricity on the material and then cleans the material to remove the dust on the surface. Then, the visual alignment device 5 takes a photo of the material on the electrostatic cleaning device 4 and then transfers the material to the AOI visual detection device 6; the AOI visual detection device 6 detects whether there is a defect on the appearance of the product, such as a crack or a bubble. After the detection, the material is transferred to the turnover unloading device 7, and then the material is turned over by 180 degrees to make the front of the material upward; finally, the material is transferred to the sorting unloading device 8 for sorting and unloading.

[0055] Meanwhile, the AOI visual detection device 6 comprises a visual detection base 60 mounted on the rack, a visual detection gantry 61 and a visual detection transferring mechanism 63 mounted on the visual detection base 60, and a visual detection mechanism 62 mounted on the visual detection gantry 61; the visual detection transferring mechanism 63 carries the material from the visual detection gantry 61, cooperates with the visual detection mechanism 62 to realize the photo alignment and appearance detection of the material, and detects whether there is a defect on the appearance of the material. In addition, in order to reduce the adverse effects of the vibration of each movement unit on the AOI visual detection device 6, the visual detection base 60 and the visual detection gantry 61 are made of marble, which has a large weight and can well reduce the vibration of the whole platform; the whole stability is good, and the AOI visual detection effect is better. It should be noted that, in the embodiment, the rack loaded with the marble base is a separate rack, which is connected with the detection section rack by the square tube and iron plate; if necessary (such as packaging and transportation), the AOI visual detection device 6 can be separated from the whole machine.

[0056] The AOI detection device for the OLED module mainly comprises the feeding and transferring device 1, the turnover feeding device 2, the code scanning device 3, the electrostatic cleaning device 4, the visual alignment device 5, the AOI visual detection device 6, the turnover unloading device 7 and the sorting unloading device 8, which replace the manual feeding and detection of the OLED module, realize the automatic control of the AOI detection device for the OLED module, greatly improve the production efficiency and reduce the labor intensity of workers under the premise of ensuring the detection precision, meet the requirements of factory batch production, and have a wide market space. Meanwhile, the visual alignment device and the AOI visual detection device are added, which can greatly improve the detection precision.

[0057] In addition, the visual inspection base 60 and the visual inspection gantry 61 in the AOI visual inspection device 6 are made of marble material, which is heavy and can well reduce the vibration of the platform as a whole, the overall stability is good, the AOI visual inspection effect is better, and the adverse effects caused by the vibration of each movement unit on the AOI visual inspection device 6 can be well reduced.

[0058] Further, the feeding and transferring device 1 comprises a feeding and transferring manipulator 10 and a feeding and transferring mechanism 11 arranged beside the feeding and transferring manipulator 10, the feeding and transferring manipulator 10 transfers the material from the previous process to the feeding and transferring mechanism 11, and the feeding and transferring mechanism 11 carries the material to the opposite feeding position of the turnover feeding device 2.

[0059] Specifically, the feeding and transferring manipulator 10 comprises a feeding and transferring gantry 101, a first transferring linear module 102 mounted on the feeding and transferring gantry 101, a second transferring linear module 103 mounted on the first transferring linear module 102, and a first feeding and transferring suction cup piece 104 mounted at the bottom of the second transferring linear module 103, and the sliding direction of the first transferring linear module 102 is perpendicular to the sliding direction of the second transferring linear module 103. The first feeding and transferring suction cup piece 104 is used for sucking and grasping the material, and comprises a first suction cup mounting rack 1041 and first vacuum suction cups 1042 arranged at the bottom of the first suction cup mounting rack 1041 in a spaced manner. Long strip holes are formed in the first suction cup mounting rack 1041, the first vacuum suction cups 1042 are mounted in the long strip holes of the first suction cup mounting rack 1041 and fixed by butterfly bolts, so as to facilitate the adjustment of the mounting position of the first vacuum suction cups 1042. During work, the first feeding and transferring suction cup piece 104 is adjusted horizontally and vertically by the horizontal sliding of the first transferring linear module 102 and the vertical sliding of the second transferring linear module 103, so as to realize accurate feeding of the material.

[0060] The feeding and transferring mechanism 11 comprises a lead screw handle assembly 1134 mounted on a rack, a feeding and transferring base 111 slidingly mounted on the lead screw handle assembly 1134, a third transferring linear module 112 mounted on the feeding and transferring base 111, and a second feeding and transferring suction cup piece 113 mounted on the third transferring linear module 112. The second feeding and transferring suction cup piece 113 comprises a suction cup support table 1131 mounted on the third transferring linear module 112, a second suction cup mounting rack 1133 mounted on the suction cup support table 1131, and second vacuum suction cups 1132 arranged at the bottom of the second suction cup mounting rack 1133 in a spaced manner. The sliding direction of the feeding and transferring base 111 on the lead screw handle assembly 1134 is perpendicular to the sliding direction of the third transferring linear module 112.

[0061] The second feeding and transferring suction disc part 113 has adjustability in structure, and the position of the second suction disc mounting frame 1133 and the second vacuum suction disc 1132 can be freely adjusted, so that the material can be adsorbed, and various working conditions and different specifications of products can be adapted.

[0062] It should be noted that the second vacuum suction disc 1132 in the present application can be replaced by a vacuum suction block or a vacuum suction plate, or the like, in whole or in part, to realize adsorption of the material and form various combinations, and the selection and collocation can be made according to actual needs, so that the present application is flexible, variable and adaptable.

[0063] Meanwhile, a long hole is formed in the second suction disc mounting frame 1133, the second vacuum suction disc 1132 is installed at the long hole of the second suction disc mounting frame 1133, and is fixed by a butterfly bolt, so that the installation position of the second vacuum suction disc 1132 can be adjusted. In use, the suction disc support table 1131 is driven to slide by the third transferring linear module 112, and the position of the second suction disc mounting frame 1133 can be adjusted by a lead screw hand wheel assembly 1134.

[0064] Further, the turnover feeding device 2 comprises a first six-axis robot 20, a turnover feeding mechanism 21 and a first transfer conveying mechanism 22 arranged around the output end of the feeding and transferring mechanism 11. In work, the first six-axis robot 20 grabs the material on the feeding and transferring mechanism 11, transfers the material to the turnover feeding mechanism 21, turns over the material by 180° through the turnover feeding mechanism 21, so that the back of the material faces upward. Then, the first six-axis robot 20 carries the material to the first transfer conveying mechanism 22, and transports the material to the code scanning device 3 through the first transfer conveying mechanism 22. The six-axis robot is used to transfer the material, which saves space and improves the flexibility of action. Specifically, the mechanical gripper part of the first six-axis robot 20 can refer to the structure design of the second feeding and transferring suction disc part 113, so that the adjustability of the structure is realized, and the first six-axis robot 20 has the characteristics of flexibility, variability and adaptability.

[0065] Specifically, the turnover feeding mechanism 21 comprises a first turnover feeding linear module 211, a second turnover feeding linear module 212 mounted on the first turnover feeding linear module 211, and a turnover feeding assembly 213 mounted on the second turnover feeding linear module 212, the sliding directions of the first turnover feeding linear module 211 and the second turnover feeding linear module 212 are perpendicular to each other; the turnover feeding assembly 213 comprises a turnover feeding motor 2131 and a turnover feeding jig 2132 in driving connection with the turnover feeding motor 2131, a long hole is formed in the turnover feeding jig 2132, and a third vacuum chuck 2133 is mounted at the long hole of the turnover feeding jig 2132, so as to facilitate adjustment of the mounting position of the third vacuum chuck 2133 according to actual needs. In work, the first turnover feeding linear module 211 and the second turnover feeding linear module 212 drive the horizontal and vertical adjustment of the turnover feeding assembly 213; then, the turnover feeding motor 2131 is started to drive the turnover feeding jig 2132 to turn 180°, so as to realize turnover of the material.

[0066] Further, the code scanning device 3 is used for scanning and feeding the material, and is transported to a position opposite to the electrostatic cleaning device 4. The specific structure of the code scanning device 3 is not limited in the present application, as long as the scanning and feeding functions can be realized, which belongs to the protection scope of the present application. In the present embodiment, the code scanning device 3 comprises upper and lower code scanning devices, and the two times of scanning are perpendicular to each other, so that the scanning of the material in two directions can be realized, so that the scanning can be performed on the material regardless of the position of the identification code on the front or back surface.

[0067] Further, the electrostatic cleaning device 4 comprises a cleaning gantry 40, a cleaning transfer mechanism 41 mounted on the cleaning gantry 40, and an electrostatic cleaning mechanism 42. The cleaning transfer mechanism 41 is used for transporting the material at the output end of the code scanning device 3 to the electrostatic cleaning mechanism 42, and the electrostatic cleaning mechanism 42 is used for performing electrostatic cleaning and cleaning operation on the material to remove dust remaining on the surface of the material.

[0068] Of course, the electrostatic cleaning device 4 can also comprise a second transfer conveying mechanism, and correspondingly, the cleaning transfer mechanism 41 transports the material at the output end of the code scanning device 3 to the second transfer conveying mechanism, and the second transfer conveying mechanism transports the material to below the electrostatic cleaning mechanism 42 to perform electrostatic cleaning and cleaning operation on the material to remove dust remaining on the surface of the material. Specifically, the specific structure of the second transfer conveying mechanism is not limited in the present application, and can be designed and selected by the person skilled in the art according to the actual situation.

[0069] Specifically, the antistatic cleaning mechanism 42 includes an ion bar assembly 421 and a USC cleaning head assembly 422 mounted on the cleaning gantry 40. The ion bar assembly 421 is used to remove static electricity from the material, and the USC cleaning head assembly 422 is used to remove residual dust from the material surface. In this embodiment, the antistatic cleaning mechanism 42 also includes a Z-axis lifting linear module, which is mounted on the cleaning gantry 40. Both the ion bar assembly 421 and the USC cleaning head assembly 422 are mounted on the Z-axis lifting linear module. The Z-axis lifting linear module drives the ion bar assembly 421 and the USC cleaning head assembly 422 to adjust their height, thereby adjusting the installation height of the ion bar assembly 421 and the USC cleaning head assembly 422. According to the actual situation of the material, the ion bar assembly 421 and the USC cleaning head assembly 422 can be adjusted to a suitable height to improve the cleaning effect on the material.

[0070] Furthermore, the visual alignment device 5 includes a visual positioning component 51, a material transfer robot for conveying materials to the AOI visual inspection device 6, and a material transfer mechanism for transferring the material. Correspondingly, the material transfer robot first transfers the material to the material transfer mechanism, and the camera in the visual positioning component 51 takes a picture of the material. After taking the picture, the position information of the material is obtained and fed back to the material transfer robot. The material transfer robot uses the position information of the visual positioning component 51 to perform position offset correction, that is, to complete the angle correction and achieve coarse alignment of the material. Finally, the material transfer robot transfers the adjusted material to the AOI visual inspection device 6.

[0071] In this material transfer mechanism, the platform that carries the material is a metal plate. The metal plate has a certain thickness and weight, which makes the movement more stable and the imaging accuracy higher.

[0072] Furthermore, the visual inspection transfer mechanism 63 in the AOI visual inspection device 6 includes a fourth transfer linear motor module 631, an alignment platform unit mounted on the fourth transfer linear motor module 631, and a vacuum stage 632 mounted on the alignment platform unit.

[0073] The visual detection mechanism 62 is installed on the visual detection gantry 61, and the visual detection mechanism 62 can be composed of multiple groups of detection units arranged side by side. In the embodiment, three groups are provided, and the three groups operate synchronously to greatly improve the detection efficiency. Correspondingly, each group of detection units includes a high-precision camera assembly 622 and a fine positioning assembly. The fine positioning assembly is arranged on one side of the visual detection gantry 61, and each fine positioning assembly is composed of two sets of edge cameras 623 and one set of round hole cameras 621. The two sets of edge cameras 623 are arranged in a straight line and are arranged at the right edge of the material to perform edge scanning and photographing. Together with the round hole camera 621, the material is precisely positioned and photographed. The high-precision camera assembly 622 is arranged on the other side of the visual detection gantry 61 to perform appearance detection on the material that has completed fine positioning. During use, the positioning accuracy is improved by the combined design of the high-precision camera assembly 622, the edge camera 623, and the round hole camera 621.

[0074] During operation, the fine positioning platform unit is driven by the fourth linear motor module 631 to move together with the vacuum stage 632 carrying the material, passes through the visual detection gantry 61, and the fine positioning assembly in the visual detection mechanism 62 photographs and positions the material on the vacuum stage 632, and feeds back the photographing data information to the fine positioning platform unit to realize fine adjustment of the accurate positioning of the material position. After positioning, the material is moved to the lower side of the high-precision camera assembly 622 to detect whether there is a defect in the appearance.

[0075] Further, the turnover unloading device 7 includes a detection unloading manipulator 70 and a turnover unloading mechanism 71. The detection unloading manipulator 70 is arranged between the unloading end of the AOI visual detection device 6 and the turnover unloading mechanism 71, and is used to transfer the material detected by the AOI visual detection device 6 to the turnover unloading mechanism 71, so that the turnover unloading mechanism 71 realizes 180° turnover of the material to make the front face of the material upward. Specifically, the turnover unloading mechanism 71 can be designed with reference to the turnover feeding device 2.

[0076] Further, the classification unloading device 8 includes a transfer platform unit 81 for carrying the material arranged at the output end of the turnover unloading device 7, and a unloading transfer unit 82, a TRAY tray unloading unit 83, and a six-axis unloading robot 84 arranged at the periphery of the transfer platform unit 81. The six-axis unloading robot 84 cooperates with the unloading transfer unit 82 and the TRAY tray unloading unit 83 to correspondingly classify and screen the material on the transfer platform unit 81, and place the material on the unloading transfer unit 82 and the TRAY tray unloading unit 83, respectively, to realize screening of the material types. In the embodiment, the qualified material is placed on the unloading transfer unit 82, and the unqualified material is placed on the TRAY tray unloading unit 83. The six-axis robot is used to transfer the material, which saves space and improves the flexibility of the action.

[0077] Specifically, the blanking and transferring unit 82 comprises a blanking linear module and a blanking and transferring suction disc component installed on the blanking linear module. The blanking and transferring suction disc component can be designed with reference to the second feeding and transferring suction disc component 113, and the specific design is not limited in the present application.

[0078] Specifically, a panoramic camera detection unit 85 can be arranged directly above the TRAY disc blanking unit 83 to confirm the accurate position of the TRAY disc and prevent the broken disc caused by the unqualified material loaded on the disc. Correspondingly, the panoramic camera detection unit 85 comprises a light source mounting frame 851, a light source assembly 852 and a panoramic camera assembly 853 installed on the top of the light source mounting frame 851. The light source assembly 852 provides light source for the camera shooting of the panoramic camera assembly 853. The installation position of the panoramic camera assembly 853 is adjustable. Specifically, the adjustable manner of the installation position of the panoramic camera assembly 853 is not limited. A adjustable platform can be arranged, and the panoramic camera assembly 853 is correspondingly installed on the bottom of the adjustable platform. The specific design can be designed by the person skilled in the art according to the actual situation.

[0079] Specifically, an ion wind rod assembly can also be arranged above the output end of the blanking and transferring unit 82 to realize secondary electrostatic removal operation and improve product quality.

[0080] Specifically, the TRAY disc blanking unit 83 can further comprise an AGV trolley for automatically transporting empty and full material discs, without manual blanking, improving the degree of automation and reducing the labor intensity of workers.

[0081] In addition, considering that there is no incoming material in the upstream equipment in the production process, the machine is idle, or it is desired to use the machine to detect a certain batch of products, a TRAY disc feeding unit can be additionally arranged in the feeding section. The TRAY disc feeding unit comprises a TRAY disc lifting assembly, a panoramic camera assembly arranged above the TRAY disc lifting assembly, and an AGV trolley arranged beside the TRAY disc lifting assembly. The AGV trolley automatically feeds, and the TRAY disc reaches the material taking position and is taken by the first six-axis robot 20. Because the material in the TRAY disc is upward, the material needs to be turned over by 180° and then placed on the first intermediate conveying mechanism 22, and then the subsequent processes such as code scanning, cleaning and detection are carried out. To some extent, the feeding process can be simplified.

[0082] Correspondingly, the panoramic camera assembly can be designed with reference to the panoramic camera detection unit 85 to confirm the accurate position of the TRAY disc.

[0083] The application is further described in detail with specific examples, but it should be understood that the specific description herein should not be construed to limit the scope of the application, and various modifications made by those skilled in the art after reading the description are within the scope of the application.

Claims

1. An AOI inspection device for OLED modules, characterized in that: It includes a frame, and a loading and transfer device, a flipping loading device, a barcode scanning device, an anti-static cleaning device, a vision alignment device, an AOI vision inspection device, a flipping unloading device, and a sorting unloading device arranged sequentially on the frame. The visual alignment device includes a visual positioning component, a material transfer robot for conveying materials to the AOI visual inspection device, and a material transfer mechanism for transferring the materials. The material handling robot transfers the material to the material transfer mechanism. The camera in the vision positioning component takes a picture of the material to obtain the material's position information, which is then fed back to the material handling robot. The material handling robot uses the position information from the vision positioning component to correct the position offset, achieves coarse alignment of the material, and then transfers it to the AOI vision inspection device. The AOI visual inspection device includes a visual inspection base mounted on the frame, a visual inspection gantry and a visual inspection transfer mechanism mounted on the visual inspection base, and a visual inspection mechanism mounted on the visual inspection gantry. Both the visual inspection base and the visual inspection gantry are made of marble. The visual inspection mechanism is installed on the visual inspection gantry and includes at least one set of inspection units. Correspondingly, each set of inspection units includes a high-precision camera assembly and a precision alignment assembly. The precision alignment assembly is set on one side of the visual inspection gantry, and each precision alignment assembly consists of two sets of edge-scanning cameras and one set of circular hole cameras. The two sets of edge-scanning cameras are arranged in a straight line and set at the right edge of the material to scan and photograph the edge. They work together with the circular hole camera to achieve precise positioning and photographing of the material. The high-precision camera assembly is located on the other side of the vision inspection gantry and is used for the appearance inspection of materials after fine alignment. The alignment platform unit, driven by the fourth transfer linear motor module, moves the vacuum stage carrying the material through the vision inspection gantry. The precision alignment component in the vision inspection mechanism takes pictures of the material on the vacuum stage for alignment and feeds the picture data back to the alignment platform unit, enabling precise micro-adjustment of the material's position. After alignment, the material is transferred to the area under the high-precision camera component to inspect its appearance for defects.

2. The AOI inspection equipment for OLED modules according to claim 1, characterized in that: The AOI visual inspection device includes a visual inspection transfer mechanism comprising a fourth transfer linear motor module, an alignment platform unit mounted on the fourth transfer linear motor module, and a vacuum stage mounted on the alignment platform unit.

3. The AOI inspection equipment for OLED modules according to claim 1, characterized in that: The loading and transfer device includes a loading and transfer robot and a loading and transfer mechanism disposed next to the loading and transfer robot; The loading and transfer robot includes a loading and transfer gantry, a first transfer linear module mounted on the loading and transfer gantry, a second transfer linear module mounted on the first transfer linear module, and a first loading and transfer suction cup mounted at the bottom of the second transfer linear module. The sliding direction of the first transfer linear module is perpendicular to the sliding direction of the second transfer linear module. The first loading and transfer suction cup is used to pick up materials and realize the gripping of materials.

4. The AOI inspection equipment for OLED modules according to claim 3, characterized in that: The loading and transfer mechanism includes a screw handwheel assembly mounted on the frame, a loading and transfer base slidably mounted on the screw handwheel assembly, a third transfer linear module mounted on the loading and transfer base, and a second loading and transfer suction cup mounted on the third transfer linear module; The second loading and transfer suction cup component includes a suction cup support platform installed on the third transfer linear module, a second suction cup mounting bracket installed on the suction cup support platform, and a second vacuum suction cup spaced apart at the bottom of the second suction cup mounting bracket. The sliding direction of the loading and transfer base on the lead screw handwheel assembly is perpendicular to the sliding direction of the third transfer linear module.

5. The AOI inspection equipment for OLED modules according to claim 1, characterized in that: The flipping and loading device includes a first six-axis robot, a flipping and loading mechanism, and a first transfer conveying mechanism arranged around the output end of the loading and transfer device. The flipping feeding mechanism includes a first flipping feeding linear module, a second flipping feeding linear module mounted on the first flipping feeding linear module, and a flipping feeding assembly mounted on the second flipping feeding linear module. The sliding directions of the first flipping feeding linear module and the second flipping feeding linear module are perpendicular to each other. The flipping feeding assembly includes a flipping feeding motor and a flipping feeding fixture driven and connected to the flipping feeding motor.

6. The AOI inspection equipment for OLED modules according to claim 1, characterized in that: The static eliminator cleaning device includes a cleaning gantry, a cleaning transfer mechanism installed on the cleaning gantry, and a static eliminator cleaning mechanism. The cleaning and transfer mechanism is used to transfer the material output from the barcode scanner to the static electricity removal and cleaning mechanism, which is used to remove static electricity and clean the material.

7. The AOI inspection equipment for OLED modules according to claim 1, characterized in that: The sorting and unloading device includes a transfer platform unit located at the output end of the flipping unloading device, and a unloading and transfer unit, a TRAY tray unloading unit, and a six-axis unloading robot located around the transfer platform unit. The six-axis unloading robot works in conjunction with the unloading and transfer unit and the TRAY tray unloading unit. Correspondingly, after the materials on the transfer platform unit are sorted and screened, they are placed on the unloading and transfer unit and the TRAY tray unloading unit respectively.

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