An LCM module inspection system based on AOI

Abstract

The invention relates to an AOI-based LCM module detection system, which belongs to the LCM module detection technology and comprises a detection base, wherein an L-shaped mounting frame and a U-shaped mounting frame are fixedly installed on the top of the detection base, a connecting side plate is fixedly installed on the L-shaped mounting frame, a circulating conveying component is installed on the connecting side plate, a square connecting block is installed on the circulating conveying component, a transverse mounting strip is fixedly installed on the square connecting block, a limiting slide groove is provided on the transverse mounting strip, a clamping positioning component is installed in the limiting slide groove, an LCM screen module is installed on the clamping positioning component, a strip mounting frame is fixedly installed on the top of the U-shaped mounting frame, and an angle-adjustable transverse driving component is installed on the inner wall of the strip mounting frame. The invention can realize automatic conveying and precise positioning of the LCM screen module, ensure the stability and consistency of the detection process, and ensure comprehensive detection coverage at the same time, and the angle-adjustable function of the AOI detection module improves the accuracy of optical detection.

Description

Technical Field

[0001] The present invention relates to the technical field of LCM module detection, and in particular to an AOI-based LCM module detection system. Background Art

[0002] LCM module refers to a display module that integrates a liquid crystal display panel, a driving circuit, a backlight source and other related components. It is the core component of the display device and can convert electrical signals into visible images. LCM modules usually include liquid crystal screens, control chips, connection interfaces and backlight units, and have the characteristics of compact structure, low power consumption and excellent display effects. It is widely used in smart phones, tablet computers, car displays, industrial control equipment and household appliances, and is an important component for realizing information visualization. In order to ensure the quality of LCM modules, it is necessary to test the LCM modules to achieve comprehensive testing and evaluation of the quality, performance and functions of the LCM modules.

[0003] As disclosed in announcement number (CN115016155A), an AOI-based LCM module detection system belongs to the field of LCM detection technology. The AOI-based LCM module detection system includes a frame and a detection component. The rotating feeding part transfers the LCM screen module to the optical detection module for optical measurement and data burning, and then the rotating feeding part is started to rotate one station, and the LCM screen module is transferred to the AOI detection module for AOI detection and image recording. The LCM screen module is transferred to the unloading mechanism by the rotating feeding part, and the LCM screen module is unloaded by the unloading mechanism. This mechanism redesigns the process and transfer structure from loading, detection, and unloading actions, so that the overall process is smooth, the structure is compact, and the transfer distance is short, which greatly improves the detection efficiency, improves the overall detection efficiency and production capacity, and effectively improves the problems of low detection efficiency and production capacity of LCM display screen modules in related technologies.

[0004] However, when the above technical solution is in use, the AOI inspection module can only inspect the LCM screen module from a single position and cannot perform an all-round scan of the LCM screen module. The comprehensiveness of the inspection is not good, the optical inspection is not precise enough, and the defective LCM screen module cannot be removed in time. The efficiency of quality inspection is not high, and there are certain disadvantages in the use process.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] In order to overcome the technical defects of the prior art, the present invention provides an AOI-based LCM module detection system, which can realize all-round scanning of the LCM screen module to ensure comprehensive detection coverage. The angle adjustable function of the AOI detection module improves the accuracy of optical detection, facilitates the timely removal of defective LCM screen modules, and improves the efficiency of quality detection.

[0007] The technical solution adopted by the present invention is: comprising a detection base, the L-shaped mounting frame and the U-shaped mounting frame are fixedly installed on the top of the detection base, the connecting side plate is fixedly installed on the L-shaped mounting frame, the circulating conveying component is installed on the connecting side plate, the square connecting block is installed on the circulating conveying component, the transverse mounting strip is fixedly installed on the square connecting block, a limited position slide groove is provided on the transverse mounting strip, the clamping and positioning component is installed in the limited position slide groove, the LCM screen module is installed on the clamping and positioning component, and the top of the U-shaped mounting frame is fixedly installed The strip mounting frame is fixedly installed, the angle-adjustable transverse driving assembly is installed on the inner wall of the strip mounting frame, the AOI detection module and the photosensitive detection module are installed on the angle-adjustable transverse driving assembly, the AOI detection module and the photosensitive detection module are respectively located on both sides of the circulating conveying assembly, the vertical mounting columns are fixedly installed on the top of the detection base and the strip mounting frame, the integrated material picking and placing mechanism is fixedly installed on the top of the vertical mounting column, the integrated material picking and placing mechanism is located on both sides of the circulating conveying assembly, and is used for picking up and placing the LCM screen module.

[0008] Preferably, in order to control the servo motor to be turned on so that the rotating connecting shaft can drive the conveying roller to rotate on the connecting side plate, thereby driving the circulating conveyor belt to move, thereby driving the square connecting block to move in a circular motion, the circulating conveying assembly includes the conveying roller and the servo motor, the conveying roller is rotatably mounted on the inner wall of the connecting side plate through the rotating connecting shaft, the servo motor is fixed on the outer wall of the connecting side plate, and one end of the rotating connecting shaft is fixedly connected to the output shaft of the servo motor, the conveying roller is sleeved with the circulating conveyor belt, and the square connecting block is fixed on the circulating conveyor belt.

[0009] Preferably, in order to control the opening of the first micromotor so that the bidirectional threaded rod can rotate in the limiting slide groove through the first rotating joint, the clamping and positioning assembly includes the first micromotor and the bidirectional threaded rod, the first micromotor is fixed on the inner wall of one end of the limiting slide groove, the bidirectional threaded rod is rotatably installed on the inner wall of the other end of the limiting slide groove through the first rotating joint, and one end of the bidirectional threaded rod is fixedly connected to the output shaft of the first micromotor.

[0010] Preferably, in order to control the rotation of the bidirectional threaded rod so that the two threaded sliders can slide in opposite directions in the limiting slide groove, the first clamping seat and the second clamping seat can be driven to move closer or farther away through the connecting head, so as to clamp and fix the LCM screen modules of different sizes, the bidirectional threaded rod is equipped with the threaded slider, and the threaded slider is slidably engaged in the limiting slide groove. There are two threaded sliders, which are respectively located at the reverse thread ends of the bidirectional threaded rod. The first clamping seat and the second clamping seat are respectively installed on the two threaded sliders, and the first clamping seat and the second clamping seat are respectively fixedly connected to the two threaded sliders through the connecting head. The first clamping seat and the second clamping seat are symmetrically distributed for clamping and fixing the LCM screen module.

[0011] Preferably, in order to control the opening of the second micro motor so that the driving screw can rotate in the strip mounting frame through the second rotating joint, the angle-adjustable transverse driving assembly includes the second micro motor and the driving screw, the second micro motor is fixed on the inner wall of one end of the strip mounting frame, the driving screw is rotatably mounted on the inner wall of the other end of the strip mounting frame through the second rotating joint, and one end of the driving screw is fixedly connected to the output shaft of the second micro motor.

[0012] Preferably, in order to drive the transverse slider to slide in the bar mounting frame by controlling the rotation of the driving screw, thereby driving the upper lateral bar and the lower lateral bar to move laterally through the serpentine connecting rod, so as to realize the adjustment of the lateral position of the photosensitive detection module and the AOI detection module, the transverse slider is threadedly mounted on the driving screw, and the transverse slider is slidably clamped in the bar mounting frame, the serpentine connecting rod is fixedly mounted on the transverse slider, and the upper lateral bar and the lower lateral bar are fixedly mounted on the serpentine connecting rod, the upper lateral bar and the lower lateral bar are respectively located on both sides of the circulating conveying assembly, and the photosensitive detection module is fixed at one end of the upper lateral bar.

[0013] Preferably, in order to control the angle adjustment motor to turn on so that the angle adjustment block can rotate in the U-shaped rotating seat, thereby driving the AOI detection module to rotate and realizing the angle adjustment of the AOI detection module, the U-shaped rotating seat is fixedly installed on one end of the lower lateral bar, the angle adjustment block is rotatably installed on the inner wall of the U-shaped rotating seat, the angle adjustment motor is fixedly installed on the top of the U-shaped rotating seat, one end of the angle adjustment block is fixedly connected to the output shaft of the angle adjustment motor, and the AOI detection module is fixed on the other end of the angle adjustment block.

[0014] Preferably, in order to detect the brightness of the LCM screen module through the sensing probe and the brightness sensor, the photosensitive detection module includes the vertical connecting plate, on which the brightness sensor and the sensing probe are fixedly mounted, the sensing probe is located on one side of the LCM screen module, and the sensing probe is electrically connected to the brightness sensor.

[0015] Preferably, in order to drive the sliding connection block to slide in the transverse suspended frame by controlling the extension and retraction of the transverse telescopic push rod, thereby realizing the transverse position adjustment of the sliding connection block, the integrated material loading and unloading mechanism includes the transverse suspended frame, the transverse suspended frame is fixed on the top of the vertical mounting column, the sliding connection block is slidably installed on the inner wall of the transverse suspended frame, the number of the sliding connection blocks is two, and the two sliding connection blocks are symmetrically distributed, the transverse telescopic push rods are fixedly installed at both ends of the transverse suspended frame, and the two sliding connection blocks are respectively fixedly connected to the telescopic ends of the transverse telescopic push rods at both ends.

[0016] Preferably, in order to control the extension and retraction of the longitudinal telescopic rod so that the material picking and placing suction cup can contact the LCM screen module on the clamping and positioning assembly, the telescopic end of the longitudinal telescopic rod is fixedly connected to the material picking and placing suction cup, the longitudinal telescopic push rod is fixedly installed on the two sliding connecting blocks, the telescopic end of the longitudinal telescopic push rod is fixedly connected to the material picking and placing suction cup, and the material picking and placing suction cup corresponds to the clamping and positioning assembly.

[0017] The beneficial effects of the present invention are: automatic conveying and precise positioning of the LCM screen module are realized through the circulating conveying component and the clamping and positioning component, thereby ensuring the stability and consistency of the detection process;

[0018] The angle-adjustable traverse drive assembly drives the AOI inspection module and the photosensitive inspection module to perform an all-round scan of the LCM screen module, ensuring comprehensive inspection coverage. The angle-adjustable function of the AOI inspection module improves the accuracy of optical inspection.

[0019] Automatic material loading and unloading is achieved through the integrated loading and unloading mechanism, which supports continuous operation and can promptly pick up defective LCM screen modules, significantly improving the inspection efficiency. It has a high degree of automation, reduces manual intervention, and reduces human errors. It is suitable for quality inspection of large-scale LCM screen modules and effectively improves inspection accuracy and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2It is a schematic diagram of the installation structure of the circulating conveying component of the present invention on the connecting side plate;

[0022] Figure 3 It is a schematic diagram of the connection structure between the transversely mounted strip and the circulating conveying assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the circulating conveying assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of the clamping and positioning assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the installation structure of the AOI detection module and the photosensitive detection module of the present invention;

[0026] Figure 7 It is a schematic diagram of the overall structure of the photosensitive detection module of the present invention;

[0027] Figure 8 It is a schematic diagram of the installation structure of the serpentine connecting rod of the present invention;

[0028] Fig. 9 This is a schematic diagram of the installation structure of the angle adjustment block of the present invention;

[0029] Fig.10 It is a schematic diagram of the overall structure of the integrated material taking and placing mechanism of the present invention.

[0030] Explanation of reference numerals: In the figure: 1, detection base; 2, L-shaped mounting frame; 3, U-shaped mounting frame; 4, connecting side plate; 5, circulating conveying assembly; 501, conveying roller; 502, servo motor; 503, rotating connecting shaft; 504, circulating conveyor belt; 6, square connecting block; 7, horizontal mounting bar; 8, clamping and positioning assembly; 801, first micro motor; 802, bidirectional threaded rod; 803, first rotating joint; 804, threaded slider; 805, first clamping seat; 806, second clamping seat; 807, connector; 9, LCM screen module; 10, bar mounting frame; 11, angle-adjustable transverse drive assembly; 1101, second micro motor; 1 102. Drive screw; 1103. Second rotating joint; 1104. Transverse sliding block; 1105. Serpentine connecting rod; 1106. Upper lateral bar; 1107. Lower lateral bar; 1108. U-shaped rotating seat; 1109. Angle adjustment block; 1110. Angle adjustment motor; 12. AOI detection module; 13. Photosensitive detection module; 1301. Vertical connecting plate; 1302. Brightness sensor; 1303. Sensor probe; 14. Vertical mounting column; 15. Integrated mechanism for taking and placing materials; 1501. Transverse suspended frame; 1502. Sliding connecting block; 1503. Transverse telescopic push rod; 1504. Longitudinal telescopic push rod; 1505. Taking and placing suction cup. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings:

[0032] like Figure 1-Figure 10 As shown, the present embodiment provides an AOI-based LCM module detection system, including a detection base 1, an L-shaped mounting frame 2 and a U-shaped mounting frame 3 are fixedly installed on the top of the detection base 1, a connecting side plate 4 is fixedly installed on the L-shaped mounting frame 2, a circulating conveying component 5 is installed on the connecting side plate 4, a square connecting block 6 is installed on the circulating conveying component 5, a transverse mounting strip 7 is fixedly installed on the square connecting block 6, a limited position slide groove is provided on the transverse mounting strip 7, a clamping positioning component 8 is installed in the limited position slide groove, an LCM screen module 9 is installed on the clamping positioning component 8, a strip mounting frame 10 is fixedly installed on the top of the U-shaped mounting frame 3, an angle-adjustable transverse driving component 11 is installed on the inner wall of the strip mounting frame 10, and an angle-adjustable transverse driving component 11 is installed on the inner wall of the strip mounting frame 10. An AOI detection module 12 and a photosensitive detection module 13 are installed on the adjustable transverse driving assembly 11. The AOI detection module 12 and the photosensitive detection module 13 are respectively located on both sides of the circulating conveying assembly 5. Vertical mounting columns 14 are fixedly installed on the top of the detection base 1 and the strip mounting frame 10. An integrated material picking and placing mechanism 15 is fixedly installed on the top of the vertical mounting column 14. The integrated material picking and placing mechanism 15 is located on both sides of the circulating conveying assembly 5 and is used for picking up and placing the LCM screen module 9. When in use, the LCM screen module 9 to be inspected is placed on the circulating conveying assembly 5, and the position of the LCM screen module 9 is fixed by the clamping positioning assembly 8. After starting the system, the circulating conveying assembly 5 transports the LCM screen module 9 to the inspection area. The angle-adjustable transverse drive assembly 11 drives the AOI detection module 12 and the photosensitive detection module 13 to perform automatic optical detection and photosensitive performance detection on the LCM screen module 9. During the detection process, the AOI detection module 12 and the photosensitive detection module 13 scan the LCM screen module 9 from both sides to ensure full coverage, and the use angle of the AOI detection module 12 can be adjusted to facilitate optical detection of the LCM screen module 9 from different directions, thereby improving the accuracy of optical detection of the LCM screen module 9. After the detection is completed, the integrated material-taking and discharging mechanism 15 automatically removes the detected module and places a new module to be detected to achieve continuous operation. At the same time, LCM screen modules 9 of different qualities can be taken separately. The entire system improves detection efficiency and accuracy through automated operation, and is suitable for quality detection of large-scale LCM screen modules 9.

[0033] As a technical optimization solution of the present invention, specifically Figure 4As shown, the circulating conveying assembly 5 includes a conveying roller 501 and a servo motor 502. The conveying roller 501 is rotatably mounted on the inner wall of the connecting side plate 4 through a rotating connecting shaft 503. The servo motor 502 is fixed on the outer wall of the connecting side plate 4, and one end of the rotating connecting shaft 503 is fixedly connected to the output shaft of the servo motor 502. A circulating conveyor belt 504 is sleeved on the conveying roller 501, and a square connecting block 6 is fixed on the circulating conveyor belt 504. When in use, the servo motor 502 is started, and the servo motor 502 drives the conveying roller 501 to rotate through the rotating connecting shaft 503, thereby The circulating conveyor belt 504 is driven to run smoothly. The square connecting block 6 is fixed on the circulating conveyor belt 504 and moves with the circulating conveyor belt 504. The operator places the LCM screen module 9 to be tested on the clamping and positioning component 8. The clamping and positioning component 8 fixes the LCM screen module 9 to ensure that the LCM screen module 9 remains stable during the conveying process. The circulating conveyor belt 504 transports the LCM screen module 9 from the starting position to the detection area. The AOI detection module 12 and the photosensitive detection module 13 respectively perform optical and photosensitive performance tests on the LCM screen module 9. After the detection is completed, the circulating conveyor belt 504 continues to run and sends the LCM screen module 9 to the position of the material picking and discharging integrated mechanism 15. The material picking and discharging integrated mechanism 15 automatically removes the detected module and places a new LCM screen module 9 to be tested. The entire process is precisely controlled by the servo motor 502 to control the conveying speed, ensure the detection efficiency and accuracy, and realize automatic continuous operation.

[0034] As a technical optimization solution of the present invention, specifically Figure 5As shown, the clamping and positioning assembly 8 includes a first micro motor 801 and a bidirectional threaded rod 802. The first micro motor 801 is fixed on the inner wall of one end of the limiting slide groove. The bidirectional threaded rod 802 is rotatably installed on the inner wall of the other end of the limiting slide groove through a first rotating joint 803, and one end of the bidirectional threaded rod 802 is fixedly connected to the output shaft of the first micro motor 801. A threaded slider 804 is installed on the bidirectional threaded rod 802. The threaded slider 804 is slidably engaged in the limiting slide groove. There are two threaded sliders 804. 804 are respectively located at the reverse thread ends of the bidirectional threaded rod 802, and the first clamping seat 805 and the second clamping seat 806 are respectively installed on the two threaded sliders 804, and the first clamping seat 805 and the second clamping seat 806 are respectively fixedly connected to the two threaded sliders 804 through the connector 807, and the first clamping seat 805 and the second clamping seat 806 are symmetrically distributed for clamping and fixing the LCM screen module 9. When in use, the first micro motor 801 is started, and the first micro motor 801 drives the bidirectional threaded rod 802 to rotate. Since the two ends of the bidirectional threaded rod 802 are reverse threaded, the two threaded sliders 804 move toward or away from each other along the limiting slide groove under the action of rotation. When the threaded sliders 804 move toward each other, the first clamping seat 805 and the second clamping seat 806 approach synchronously to clamp and fix the two sides of the LCM screen module 9, ensuring that the LCM screen module 9 remains stable during the detection process. After the detection is completed, the first micro motor 801 rotates in the opposite direction, driving the bidirectional threaded rod 802 to drive the threaded slider 804 to move in opposite directions, so that the first clamping seat 805 and the second clamping seat 806 release the LCM screen module 9, and then the circular conveying assembly 5 sends the LCM screen module 9 to the next process. The first micro motor 801 accurately controls the clamping force and position during the whole process to avoid damage to the LCM screen module 9, while ensuring the accuracy and efficiency of the detection.

[0035] As a technical optimization solution of the present invention, specifically Figure 7-Figure 9As shown, the angle-adjustable transverse driving assembly 11 includes a second micro motor 1101 and a driving screw 1102, the second micro motor 1101 is fixed on the inner wall of one end of the strip mounting frame 10, the driving screw 1102 is rotatably mounted on the inner wall of the other end of the strip mounting frame 10 through a second rotating joint 1103, and one end of the driving screw 1102 is fixedly connected to the output shaft of the second micro motor 1101, a transverse slider 1104 is threadedly mounted on the driving screw 1102, the transverse slider 1104 is slidably engaged in the strip mounting frame 10, a serpentine connecting rod 1105 is fixedly mounted on the transverse slider 1104, an upper lateral strip 1106 and a lower lateral strip 1107 are fixedly mounted on the serpentine connecting rod 1105, the upper lateral strip 1106 and the lower lateral strip 1107 are respectively located on both sides of the circulating conveying assembly 5, and the photosensitive detection module 13 is fixed on the upper lateral strip 11 06 at one end, a U-shaped rotating seat 1108 is fixedly installed at one end of the lower lateral strip 1107, an angle adjustment block 1109 is rotatably installed on the inner wall of the U-shaped rotating seat 1108, an angle adjustment motor 1110 is fixedly installed on the top of the U-shaped rotating seat 1108, one end of the angle adjustment block 1109 is fixedly connected to the output shaft of the angle adjustment motor 1110, the AOI detection module 12 is fixed to the other end of the angle adjustment block 1109, the photosensitive detection module 13 includes a vertical connecting plate 1301, a brightness sensor 1302 and a sensing probe 1303 are fixedly installed on the vertical connecting plate 1301, the sensing probe 1303 is located on one side of the LCM screen module 9, and the sensing probe 1303 is electrically connected to the brightness sensor 1302. When in use, the second micro motor 1101 is started to drive the lead screw 1102 to rotate, thereby driving the transverse slider 1104 to slide in the strip mounting frame 10. The lateral slider 1104 drives the upper lateral block 1106 and the lower lateral block 1107 to move synchronously through the serpentine connecting rod 1105, so that the photosensitive detection module 13 and the AOI detection module 12 move laterally along the two sides of the circular conveying component 5 to cover the detection area of ​​the LCM screen module 9. The photosensitive detection module 13 detects the brightness of the LCM screen module 9 through the sensing probe 1303 on the vertical connecting plate 1301, and transmits the data to the brightness sensor 1302 for analysis. The AOI detection module 12 is fixed on the angle adjustment block 1109, and the angle adjustment motor 1110 drives the angle adjustment block 1109 to rotate, and adjusts the angle of the AOI detection module 12 to meet the detection requirements of the LCM screen module 9 of different sizes or positions. During the detection process, the AOI detection module 12 optically scans the surface of the LCM screen module 9, and the photosensitive detection module 13 tests the brightness performance. The two work together to ensure that the detection is comprehensive and accurate. After the detection is completed, the traverse drive assembly is reset to prepare for the next round of detection. The entire process is precisely controlled by the second micro motor 1101 to achieve efficient and flexible automated detection.

[0036] As a technical optimization solution of the present invention, specifically Fig.10 As shown, the material taking and placing integrated mechanism 15 comprises a transverse suspended frame 1501, which is fixed on the top of the vertical mounting column 14. A sliding connection block 1502 is slidably mounted on the inner wall of the transverse suspended frame 1501. The number of the sliding connection blocks 1502 is two, and the two sliding connection blocks 1502 are symmetrically distributed. Transverse telescopic push rods 1503 are fixedly mounted at both ends of the transverse suspended frame 1501. The two sliding connection blocks 1502 are respectively extended and disengaged from the transverse telescopic push rods 1503 at both ends. The contracted ends are fixedly connected, and longitudinal telescopic push rods 1504 are fixedly installed on the two sliding connection blocks 1502. The telescopic ends of the longitudinal telescopic push rods 1504 are fixedly connected with the material picking and placing suction cups 1505. The material picking and placing suction cups 1505 correspond to the clamping and positioning components 8. When the LCM screen module 9 completes the detection, the transverse telescopic push rod 1503 is started to push the sliding connection block 1502 to slide in the transverse suspended frame 1501, so that the material picking and placing suction cups 1505 move to the lateral position of the LCM screen module 9. Subsequently, the longitudinal telescopic push rod 1504 extends downward, driving the material picking and placing suction cups 1505 close to the module surface, and fixing the LCM screen module 9 by negative pressure adsorption. After the adsorption is completed, the longitudinal telescopic push rod 1504 shrinks to lift the module to a safe height. Then, the transverse telescopic push rod 1503 shrinks, driving the sliding connection block 1502 and the material picking and placing suction cups 1505 to move laterally to the material discharging position. The longitudinal telescopic push rod 1504 extends again to place the LCM screen module 9 steadily at the designated position, and the material picking and placing suction cup 1505 releases the negative pressure to complete the module unloading. After the AOI detection module 12 completes the detection, if the LCM screen module 9 has defects, the material picking and placing suction cup 1505 on one side can be controlled to pick up the material. After the AOI detection module 12 completes the detection, if the LCM screen module 9 has no defects, the circulating conveying component 5 can continue to be controlled to move the LCM screen module 9 to the side of the photosensitive detection module 13 for continued detection. At the same time, the material picking and placing suction cup 1505 on the other side can synchronously perform the material picking operation to absorb and transport the new LCM screen module 9 to be detected from the feeding area to the detection area. The entire process realizes efficient and accurate automatic material picking and placing through the coordinated action of the transverse telescopic push rod 1503 and the longitudinal telescopic push rod 1504, ensuring the continuity and efficiency of the detection process.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. An AOI-based LCM module inspection system, comprising an inspection base (1), characterized in that: An L-shaped mounting frame (2) and a U-shaped mounting frame (3) are fixedly mounted on the top of the detection base (1); a connecting side plate (4) is fixedly mounted on the L-shaped mounting frame (2); a circulating conveying component (5) is mounted on the connecting side plate (4); a square connecting block (6) is mounted on the circulating conveying component (5); a transverse mounting strip (7) is fixedly mounted on the square connecting block (6); a limiting slide groove is provided on the transverse mounting strip (7); a clamping positioning component (8) is mounted in the limiting slide groove; an LCM screen module (9) is mounted on the clamping positioning component (8); a strip mounting frame (10) is fixedly mounted on the top of the U-shaped mounting frame (3); the strip mounting An angle-adjustable transverse drive assembly (11) is installed on the inner wall of the frame (10), an AOI detection module (12) and a photosensitive detection module (13) are installed on the angle-adjustable transverse drive assembly (11), the AOI detection module (12) and the photosensitive detection module (13) are respectively located on both sides of the circulating conveying assembly (5), the detection base (1) and the top of the strip-shaped installation frame (10) are both fixedly installed with vertical mounting columns (14), the top of the vertical mounting columns (14) is fixedly installed with a material taking and placing integrated mechanism (15), the material taking and placing integrated mechanism (15) is located on both sides of the circulating conveying assembly (5) and is used for taking and placing the LCM screen module (9); The circulating conveying assembly (5) comprises a conveying roller (501) and a servo motor (502); the conveying roller (501) is rotatably mounted on the inner wall of the connecting side plate (4) via a rotating connecting shaft (503); the servo motor (502) is fixed to the outer wall of the connecting side plate (4); one end of the rotating connecting shaft (503) is fixedly connected to the output shaft of the servo motor (502); a circulating conveying belt (504) is sleeved on the conveying roller (501); and the square connecting block (6) is fixed to the circulating conveying belt (504); The clamping and positioning assembly (8) comprises a first micro motor (801) and a bidirectional threaded rod (802), wherein the first micro motor (801) is fixed to the inner wall at one end of the limiting slide groove, and the bidirectional threaded rod (802) is rotatably mounted on the inner wall at the other end of the limiting slide groove via a first rotating joint (803), and one end of the bidirectional threaded rod (802) is fixedly connected to the output shaft of the first micro motor (801); The angle-adjustable transverse drive assembly (11) comprises a second micro motor (1101) and a driving screw (1102), wherein the second micro motor (1101) is fixed to the inner wall of one end of the strip-shaped mounting frame (10), and the driving screw (1102) is rotatably mounted on the inner wall of the other end of the strip-shaped mounting frame (10) via a second rotating joint (1103), and one end of the driving screw (1102) is fixedly connected to the output shaft of the second micro motor (1101); A transverse slider (1104) is threadedly mounted on the driving screw (1102), and the transverse slider (1104) is slidably engaged in the bar mounting frame (10), and a serpentine connecting rod (1105) is fixedly mounted on the transverse slider (1104), and an upper lateral strip (1106) and a lower lateral strip (1107) are fixedly mounted on the serpentine connecting rod (1105), and the upper lateral strip (1106) and the lower lateral strip (1107) are respectively located on both sides of the circulating conveying component (5), and the photosensitive detection module (13) is fixed to one end of the upper lateral strip (1106).

2. The AOI-based LCM module detection system according to claim 1, characterized in that: A threaded slider (804) is installed on the bidirectional threaded rod (802), and the threaded slider (804) is slidably engaged in the limiting slide groove. There are two threaded sliders (804), and the two threaded sliders (804) are respectively located at the reverse thread ends of the bidirectional threaded rod (802). A first clamping seat (805) and a second clamping seat (806) are respectively installed on the two threaded sliders (804). The first clamping seat (805) and the second clamping seat (806) are respectively fixedly connected to the two threaded sliders (804) through a connector (807). The first clamping seat (805) and the second clamping seat (806) are symmetrically distributed and are used to clamp and fix the LCM screen module (9).

3. The AOI-based LCM module detection system according to claim 1, characterized in that: A U-shaped rotating seat (1108) is fixedly mounted on one end of the lower lateral bar (1107); an angle adjustment block (1109) is rotatably mounted on the inner wall of the U-shaped rotating seat (1108); an angle adjustment motor (1110) is fixedly mounted on the top of the U-shaped rotating seat (1108); one end of the angle adjustment block (1109) is fixedly connected to an output shaft of the angle adjustment motor (1110); and the AOI detection module (12) is fixed to the other end of the angle adjustment block (1109).

4. The AOI-based LCM module detection system according to claim 1, characterized in that: The photosensitive detection module (13) comprises a vertical connection plate (1301), on which a brightness sensor (1302) and a sensing probe (1303) are fixedly mounted, the sensing probe (1303) being located on one side of the LCM screen module (9), and the sensing probe (1303) being electrically connected to the brightness sensor (1302).

5. The AOI-based LCM module detection system according to claim 1, characterized in that: The integrated material loading and unloading mechanism (15) comprises a transverse suspended frame (1501), wherein the transverse suspended frame (1501) is fixed to the top of the vertical mounting column (14), and a sliding connection block (1502) is slidably mounted on the inner wall of the transverse suspended frame (1501), wherein the number of the sliding connection blocks (1502) is two, and the two sliding connection blocks (1502) are symmetrically distributed, and transverse telescopic push rods (1503) are fixedly mounted at both ends of the transverse suspended frame (1501), and the two sliding connection blocks (1502) are respectively fixedly connected to the telescopic ends of the transverse telescopic push rods (1503) at both ends.

6. The AOI-based LCM module detection system according to claim 5, characterized in that: A longitudinal telescopic push rod (1504) is fixedly mounted on each of the two sliding connection blocks (1502), and a material picking and placing suction cup (1505) is fixedly connected to the telescopic end of the longitudinal telescopic push rod (1504), and the material picking and placing suction cup (1505) corresponds to the clamping and positioning assembly (8).

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