A kind of FOG liquid crystal screen silver paste resistance testing device

Abstract

The application discloses a FOG liquid crystal screen silver paste resistance value testing device, and belongs to the technical field of liquid crystal screen testing equipment. The FOG liquid crystal screen silver paste resistance value testing device comprises a workbench, a mechanical arm stand, a plurality of testing transmission assemblies and a plurality of feeding and discharging assemblies. The testing transmission assembly comprises a feeding transmission mechanism, a testing table and a discharging transmission mechanism. The feeding and discharging assembly comprises a lifting piece, a vacuum generator, a transparent suction cup and a connecting pipe. The plurality of testing transmission assemblies are uniformly distributed in the circumferential direction of the mechanical arm stand. The lifting piece is located on the mechanical arm stand, and the vacuum generator is located on the lifting piece. The transparent suction cup is located on the side facing the feeding transmission mechanism, the testing table and the discharging transmission mechanism. The connecting pipe is in communication with the vacuum generator and the transparent suction cup. The lifting piece is driven to rotate by the mechanical arm stand, and the transparent suction cup is driven by the lifting piece to move up and down to adsorb the FOG liquid crystal screen to be detected and the FOG liquid crystal screen after detection. The automatic feeding and discharging can be used for testing, and the degree of automation is high, and the labor degree is low.

Description

Technical Field

[0001] This invention belongs to the field of LCD screen testing equipment and provides a device for testing the resistance of silver paste in FOG LCD screens. Background Technology

[0002] FOG LCD screens are matte screens, which, compared to glossy screens, do not produce glare in strong light, reducing eye strain during prolonged use and making them suitable for commercial applications. In the production process of FOG LCD screens, electrostatic discharge is typically achieved by applying silver paste to create electrical conductivity between the upper and lower glass panes. However, if the silver paste resistance of the LCD module is too high or the paste flow is interrupted, the silver paste becomes ineffective, preventing electrical conduction and discharge. In such cases, the silver paste needs to be reapplied. Therefore, it is necessary to test the silver paste resistance of FOG LCD screens. Traditional testing equipment is complex and requires professional personnel to operate.

[0003] The prior art CN213025330U discloses a device for testing the continuity of silver paste in an IPS LCD screen. The device includes a test board with the LCD screen mounted on top, a driver IC at the bottom of the LCD screen, an FPC on the side of the LCD screen, an adapter board at the bottom of the FPC, a power module connected to the adapter board, a light-emitting diode (LED) connected to the power module, and test probes connected to the LED. Through the detection circuit and test probes, it can quickly detect whether the silver paste on the LCD screen conducts between the ITO shielding ground layer and the FPC ground layer. No professional personnel are required to operate the device; the continuity can be determined simply by observing whether the LED is lit.

[0004] However, existing testing devices require manual loading of materials onto the test board for testing, resulting in low automation and high labor intensity. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a FOG LCD screen silver paste resistance testing device, which aims to solve the problem that the existing testing devices require manual feeding of materials onto the test board for testing, resulting in low automation and high labor intensity.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a FOG LCD screen silver paste resistance testing device, including a worktable, a robotic arm column, multiple test transmission components, and multiple loading / unloading components. The robotic arm column is rotatably connected to the worktable. The multiple test transmission components are evenly distributed along the circumference of the robotic arm column. The multiple loading / unloading components are disposed on the robotic arm column and correspond to each of the test transmission components. Each test transmission component includes a loading transmission mechanism, a test table, and a unloading transmission mechanism, which are located along the circumference of the robotic arm column. Each loading / unloading component includes a lifting component, a vacuum generator, a transparent suction cup, and a connecting tube. The lifting component is located on the robotic arm column, the vacuum generator is located on the lifting component, and the transparent suction cup is located on the side facing the loading transmission mechanism, the test table, and the unloading transmission mechanism. The connecting tube communicates with the vacuum generator and the transparent suction cup.

[0008] Furthermore, the lifting component includes a lifting frame, two racks and two gears. The lifting frame is slidably connected to the robotic arm column and fixedly connected to the vacuum generator. The two racks are fixedly connected to both sides of the lifting frame and are arranged opposite to each other inside the lifting frame. The two gears mesh and mesh with the two adjacent racks respectively.

[0009] Furthermore, the test transmission component also includes a rework transmission mechanism and a baffle. The rework transmission mechanism is located on one side of the unloading transmission mechanism, and the baffle is rotatably connected to the intersection of the unloading transmission mechanism and the rework transmission mechanism.

[0010] Furthermore, the FOG LCD screen silver paste resistance testing device also includes multiple marking components. Each marking component is located on one side of each test platform. Each marking component includes a horizontal fixing seat, a first connecting block, and a vertical fixing seat. The horizontal fixing seat is located on one side of the test platform. The first connecting block is slidably connected to the horizontal fixing seat. The vertical fixing seat is perpendicular to the horizontal fixing seat and is fixedly connected to the first connecting block.

[0011] Furthermore, the marking component also includes a second connecting block, which is slidably connected to the longitudinal fixing seat.

[0012] Furthermore, the marking component also includes a vertically movable component, which is located on the second connecting block.

[0013] Furthermore, the up-and-down moving component includes a mounting base, a drive cylinder, a slider with an arc surface, a moving column, a connecting rod, and a marking pen. The mounting base is rotatably connected to the second connecting block. The drive cylinder is fixedly connected to the mounting base. The output end of the drive cylinder is fixedly connected to the slider with an arc surface. The moving column abuts against the slider with an arc surface and is slidably connected to the mounting base. The connecting rod is fixedly connected to the moving column. The marking pen is fixedly connected to the connecting rod and faces the test platform.

[0014] The beneficial effects of this invention are:

[0015] 1. The FOG LCD screen silver paste resistance testing device of the present invention achieves automatic transportation, adsorption and loading, rotation and unloading testing, and automatic unloading and conveying by rotating the mechanical arm column connected to the worktable, driving the lifting component that moves the transparent suction cup up and down, and the loading and unloading conveying mechanism located below the transparent suction cup. It has a high degree of automation and low degree of manual labor.

[0016] 2. The FOG LCD screen silver paste resistance testing device of the present invention has multiple test transmission components evenly distributed in the circumferential direction of the robotic arm column, which can simultaneously perform adsorption, detection and loading / unloading of multiple FOG LCD screens, resulting in high detection efficiency.

[0017] 3. The FOG LCD screen silver paste resistance testing device of the present invention can independently realize the adsorption, detection and loading / unloading of FOG LCD screens in different areas through independent lifting components. It has a wide range of applications and can realize testing work under different conditions.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 A schematic diagram of the overall structure of the FOG LCD screen silver paste resistance testing device provided by the present invention;

[0021] Figure 2 A top view of the FOG LCD screen silver paste resistance testing device provided by the present invention;

[0022] Figure 3A schematic diagram of the structure of the robotic arm column, a test transmission component, a loading and unloading component, an identification component, a mounting frame, and a monitoring mechanism provided by the present invention;

[0023] Figure 4 A schematic diagram of the test platform and the vertical moving parts provided by the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the loading and unloading assembly provided by the present invention;

[0025] Figure 6 This is a schematic diagram of the monitoring mechanism provided by the present invention;

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0027] Figure 8 A schematic diagram of the structure of the vision sensor, the first fixed post, the second fixed post, the spring, and the sliding post with protrusions provided by the present invention;

[0028] Figure 9 for Figure 8 Sectional view along line BB;

[0029] Attached reference numerals: 1 is the workbench, 2 is the robotic arm column, 3 is the loading and conveying mechanism, 4 is the testing table, 5 is the unloading and conveying mechanism, 6 is the vacuum generator, 7 is the transparent suction cup, 8 is the connecting pipe, 9 is the lifting frame, 10 is the rack and pinion, 11 is the gear, 12 is the rework conveying mechanism, 13 is the baffle, 14 is the transverse fixed seat, 15 is the first connecting block, 16 is the longitudinal fixed seat, 17 is the second connecting block, 18 is the mounting fixed seat, 19 is the drive cylinder, 2 0 is a slider with an arc surface, 21 is a moving column, 22 is a connecting rod, 23 is a marker pen, 24 is a mounting bracket, 25 is a connecting mounting base, 26 is a screw, 27 is a fixing rod, 28 is a first sliding block, 29 is a second sliding block, 30 is a moving rod, 31 is a connecting base, 32 is a vision sensor, 33 is a first fixing column, 34 is a second fixing column, 35 is a spring, 36 is a sliding column with a protrusion, 37 is a first through hole, and 38 is a second through hole. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] like Figure 1-9As shown, the FOG LCD screen silver paste resistance testing device of the present invention includes a worktable 1, a robotic arm column 2, multiple test transmission components, multiple loading and unloading components, and multiple marking components. The test transmission components include a loading transmission mechanism 3, a test table 4, an unloading transmission mechanism 5, a rework transmission mechanism 12, and a baffle 13. The loading and unloading components include a lifting component, a vacuum generator 6, a transparent suction cup 7, and a connecting pipe 8. The lifting component includes a lifting frame 9, two racks 10, and two gears 11. The marking components include a horizontal fixing seat 14, a first connecting block 15, a vertical fixing seat 16, a second connecting block 17, and a vertical moving component. The vertical moving component includes a mounting fixing seat 18, a drive cylinder 19, a slider with an arc surface 20, a moving column 21, a connecting rod 22, and a marking pen 23. This solution solves the problem of manual loading onto the test board in the prior art, which results in low automation and high labor intensity. It is understood that this solution can also be applied to the silver paste resistance testing of other electronic screens.

[0032] In this embodiment, the FOG LCD screen silver paste resistance testing device also includes multiple motors, which are connected to different structures to convert or transfer electrical energy according to the law of electromagnetic induction, thereby realizing the rotation of the connected structures. The robotic arm column 2 is connected to the output end of the motor and rotates on the worktable 1 under the drive of the corresponding connected motor. Multiple test transmission components are evenly distributed in the circumferential direction of the robotic arm column 2, that is, the robotic arm column 2 has multiple loading, testing, and unloading areas in the circumferential direction, and each loading, testing, and unloading area has the same equipment. This allows for the simultaneous loading, testing, and unloading of multiple FOG LCD screens, improving efficiency. Multiple loading and unloading components are mounted on the robotic arm column 2 and correspond to each of the test transmission components. These components perform adsorption loading, unloading detection, and unloading classification of the products to be inspected. The loading transmission mechanism 3, the test platform 4, and the unloading transmission mechanism 5 are located circumferentially on the robotic arm column 2. The rework transmission mechanism 12 is located on one side of the unloading transmission mechanism 5. The baffle 13 is rotatably connected to the intersection of the unloading transmission mechanism 5 and the rework transmission mechanism 12. The loading transmission mechanism 3, the unloading transmission mechanism 5, and the rework transmission mechanism 12 are existing conveyor belt mechanisms, including a belt body, a support structure, a transmission device, and a tensioning device. The belt body is the main part of the conveyor belt, responsible for conveying the screen components to be inspected. The support structure supports the entire conveyor belt system. The transmission device mainly drives the movement of the conveyor belt, and the tensioning device adjusts the tension of the conveyor belt. The feeding conveyor 3 transports FOG LCD screens that need to undergo impedance testing after standing for 10 minutes from the automatic silver paste application machine. The unloading conveyor 5 transports FOG LCD screens that have completed the testing. The rework conveyor 12 transports FOG LCD screens that fail the test. Specifically, the baffle 13 is connected to the output end of the motor. When the silver paste resistance value of the tested FOG LCD screen is qualified, the baffle 13 is located at the rework conveyor 12, and the unloading conveyor 5 transports the qualified FOG LCD screen to the next process for processing. When the silver paste resistance value of the tested FOG LCD screen is unqualified, the baffle 13 first rotates at the unloading conveyor 5, and the unqualified FOG LCD screen is transported to the intersection of the unloading conveyor 5 and the rework conveyor 12. The motor connected to the baffle 13 drives the baffle 13 to rotate, guiding the unqualified FOG LCD screen to the rework conveyor 12, thereby conveying it to the defective products section for re-application of silver paste.

[0033] The lifting member is located on the robotic arm column 2, the vacuum generator 6 is located on the lifting member, the transparent suction cup 7 is located on the side facing the loading transfer mechanism 3, the test bench 4 and the unloading transfer mechanism 5, the connecting pipe 8 is connected to the vacuum generator 6 and the transparent suction cup 7, and the connecting pipe 8 is made of transparent material. Specifically, the connecting pipe 8 is connected to the air vent of the transparent suction cup 7. When the vacuum generator 6 is started, air is vented, and the air inside the transparent suction cup 7 is pumped out, forming a vacuum state with a pressure of P2. The air pressure inside the transparent suction cup 7 is lower than the atmospheric pressure P1 outside the transparent suction cup 7, that is, P2 < P1. The FOG liquid crystal screen is sucked up under the action of the external pressure. The higher the vacuum degree inside the transparent suction cup 7, the tighter the transparent suction cup 7 adheres to the FOG liquid crystal screen. The lifting frame 9 is slidably connected to the robotic arm column 2 and fixedly connected to the vacuum generator 6. Two racks 10 are fixedly connected to both sides of the lifting frame 9 and are relatively arranged inside the lifting frame 9. Two gears 11 are engaged and are respectively engaged with the adjacent two racks 10. The vacuum generator 6 is fixed above the lifting frame 9, the connecting pipe 8 is fixedly connected to and communicated with the vacuum generator 6. The lifting frame 9 is a rectangular frame body with a rectangular through groove in the middle. The robotic arm column 2 has multiple chutes, and the multiple chutes are adapted to the lifting frame 9. Both of the two racks 10 are arranged vertically. The central axis of one of the gears 11 is connected to a motor. The motor drives the gear 11 to rotate, and then drives the other engaged gear 11 to rotate, thereby driving the two racks 10 on both sides to move up and down, driving the lifting frame 9 fixedly connected thereto to move up and down, and further driving the transparent suction cup 7 to move up and down.The test bench 4 is equipped with existing testing equipment, featuring multiple indicator lights. These lights indicate the silver paste resistance test results of the FOG LCD screen at different locations. For example, the existing technology CN213025330U includes a test board with an IPS LCD screen mounted on it. A driver IC is connected to the bottom of the IPS LCD screen, and the end of the driver IC furthest from the IPS LCD screen is connected to an FPC. An adapter board is connected to the bottom of the FPC, and a power module is connected to one side of the adapter board via a power cable. An LED is connected to the side of the power module furthest from the adapter board, and one end of the LED is connected to a test probe via a power cable. The bottom side of the IPS LCD screen is equipped with... Silver paste is applied to the test board, and symmetrical grooves are arranged on both sides of the IPS LCD screen. Each groove contains a slider with a knob. After the silver paste application is completed, the IPS LCD screen is fixed on the test board. The position of the slider in the groove is adjusted, and the IPS LCD screen is fixed by rotating the knob. It is then connected to the driver IC3. To detect whether the silver paste is conductive, simply touch the test probe to the upper glass substrate of the IPS LCD screen. The conductivity of the light-emitting diode can be used to quickly detect whether the silver paste is conductive. When the diode lights up, it indicates that the silver paste has been applied and the ITO shielding ground layer has been connected and conductive with the FPC ground layer.

[0034] The FOG LCD screen silver paste resistance testing device also includes a cylinder. The horizontal fixed base 14 is located on one side of the test platform 4. The first connecting block 15 is slidably connected to the horizontal fixed base 14. The first connecting block 15 can slide by connecting the cylinder output or by using a lead screw structure. The vertical fixed base 16 is perpendicular to the horizontal fixed base 14 and is fixedly connected to the first connecting block 15. The first connecting block 15 drives the vertical fixed base 16 to move left and right. The second connecting block 17 is slidably connected to the vertical fixed base 16. The second connecting block 17 can slide by connecting the cylinder output or by using a lead screw structure. The vertical moving component is located on the second connecting block 17, and the second connecting block 17 enables the vertical moving component to move back and forth. The mounting base 18 is rotatably connected to the second connecting block 17. The second connecting block 17 is connected to the motor output end within the mounting base 18, thereby driving the rotation of the mounting base 18. The drive cylinder 19 is fixedly connected to the mounting base 18, and the output end of the drive cylinder 19 is fixedly connected to the arc-shaped slider 20. The moving column 21 abuts against the arc-shaped slider 20 and is slidably connected to the mounting base 18. The connecting rod 22 is fixedly connected to the moving column 21, and the marking pen 23 is fixedly connected to the connecting rod 22 and faces the test platform 4. The drive cylinder 19 guides the piston to perform linear reciprocating motion within the cylinder, thereby driving the arc-shaped slider 20 fixedly connected to it to perform linear reciprocating motion within the mounting base 18. This causes one end of the moving column 21 to slide on different surfaces of the arc-shaped slider 20, placing the moving column 21 at different heights, thus placing the connecting rod 22 and the marking pen 23 at different heights. This allows the marking pen 23 to move forward, backward, left, right, up, and down. When a FOG LCD screen is detected as defective, it is marked and distinguished by the marking pen 23 for rework.

[0035] In addition, the FOG LCD screen silver paste resistance testing device also includes a mounting frame 24 and multiple monitoring mechanisms. The mounting frame 24 is located above the robotic arm column 2, and the multiple monitoring mechanisms face the multiple test transmission components respectively. The mounting frame 24 provides installation conditions for the multiple monitoring mechanisms. The monitoring mechanisms are used to detect whether the automatic silver paste dispensing machine has produced FOG LCD screens that need to be placed for 10 minutes for impedance testing and have been transferred to the feeding transmission mechanism 3. They are also used to identify the test results of the test table 4, i.e., if a red light is detected, the test is unqualified, and if a green light is detected, the test is qualified, which facilitates the subsequent rotation of the baffle 13 to realize the conveying of different processes. They are also used to detect the status of the rework transmission mechanism 12. If one of the rework transmission mechanisms 12 malfunctions, an alarm sound is emitted and a prompt message is displayed to prompt the staff to handle it, so as to avoid the FOG LCD screens that have been tested piling up or even falling and being damaged due to the malfunction.

[0036] The monitoring mechanism includes a connecting mounting base 25, a screw 26, two fixed rods 27, a first sliding block 28, two second sliding blocks 29, a moving rod 30, three monitoring components, and three connecting seats 31. The connecting mounting base 25 is fixedly connected to the mounting frame 24. The screw 26 is rotatably connected to the connecting mounting base 25. The two fixed rods 27 are fixedly connected to the connecting mounting base 25 and are located on both sides of the screw 26, having the same included angle as the screw 26. The first sliding block 28 is slidably connected to the screw 26. The two second sliding blocks 29 are slidably connected to the two fixed rods 27 respectively. The moving rod 30 is slidably connected to the first sliding block 28 and the two second sliding blocks 29. The three monitoring components are fixedly connected to the first sliding block 28 and the two second sliding blocks 29 respectively through the three connecting seats 31. The screw 26 is connected to the output end of the motor. The motor drives the screw 26 to rotate, which in turn causes the first sliding block 28 to slide along the screw 26. The two second sliding blocks 29 slide along the two fixed rods 27 respectively. The moving rod 30 slides along the extension direction of the two fixed rods 27 and the screw 26, which in turn causes the first sliding block 28 and the two second sliding blocks 29 to move away from or closer to each other. The three monitoring components acquire image information and transmit it to the controller for processing. The image information is compared with preset image information to obtain the recognition result, which is convenient for subsequent processing. The three monitoring components move with the first sliding block 28 and the two second sliding blocks 29, which can adapt to the recognition processing of FOG LCD screens of different sizes and different transportation conditions, and has a wide range of applications.For example, FOG LCD screen A is 30cm long and 10cm wide, which is a larger size, while FOG LCD screen B is 10cm long and 3cm wide, which is a smaller size. When silver paste resistance testing is required on FOG LCD screen A, FOG LCD screen A occupies a larger area on the feeding and unloading conveyor mechanism 3 and the unloading conveyor mechanism 5. The test slot of the test platform 4 is changed to be compatible with FOG LCD screen A. The area enclosed by the multiple indicator lights on the test platform 4 used to display the test results at various positions is larger. At this time, the motor rotates, driving the screw 26 to rotate, which in turn drives the first sliding block 28, the two second sliding blocks 29, and the moving rod 30 to slide away from the connecting mounting base 25, increasing the spacing between the three monitoring components. The monitoring components on the second sliding block 29 of the feeding and conveyor mechanism 3 obtain the position of FOG LCD screen A on the feeding and conveyor mechanism 3. The position image information is compared with the preset image information to determine whether the placement position is accurate. If it is tilted, it prevents the transparent suction cup 7 from being tilted when it is attached to the test table 4 for testing. At the same time, if the FOG LCD screen A is placed in the correct position, a suction signal is issued to make the robotic arm column 2 rotate and the lifting component move up and down to attach the FOG LCD screen A to the test table 4 for testing. The monitoring component on the second sliding block 29 obtains the status of the indicator lights at multiple positions of the FOG LCD screen A. If the green light is qualified and the red light is unqualified, an identification signal is issued, and the identification pen 23 of the identification component marks the unqualified area. The monitoring component on the first sliding block 28 corresponding to the unloading and conveying mechanism 5 obtains the corresponding FOG LCD screen A after testing, starts the unloading and conveying mechanism 5 for transportation, and at the same time, if the unloading and conveying mechanism 5 fails to move, it issues a prompt sound and displays a prompt message to prompt the staff to handle it. Similarly, when a silver paste resistance test is required on the FOG LCD screen B, the area occupied by the FOG LCD screen B in the loading and unloading conveyor mechanism 3 and the unloading conveyor mechanism 5 is relatively small. The test slot specification of the test platform 4 is changed to be compatible with the FOG LCD screen B. The area enclosed by the multiple indicator lights on the test platform 4 used to display the test results at each position is also relatively small. At this time, the motor rotates, driving the screw 26 to rotate, which in turn drives the first sliding block 28, the two second sliding blocks 29, and the moving rod 30 to slide closer to the connecting mounting base 25, reducing the distance between the three monitoring components and performing corresponding detection processing. The fully automated loading and unloading identification test has a low degree of manual labor and high identification accuracy.

[0037] Additionally, the monitoring component includes a vision sensor 32, a first fixed post 33, a second fixed post 34, a spring 35, and a sliding post 36 with a protrusion. The vision sensor 32 has a first through hole 37. The first fixed post 33 and the second fixed post 34 are fixedly connected to the connecting seat 31 and are arranged opposite to each other. The sliding post 36 with a protrusion is slidably connected to the first fixed post 33. The two ends of the spring 35 are fixedly connected to the first fixed post 33 and the sliding post 36 with a protrusion, respectively, and are located between the first fixed post 33 and the sliding post 36 with a protrusion. The second fixed post 34 has a second through hole 38, and the sliding post 36 with a protrusion passes through the first through hole 37 and the second through hole 38. When the vision sensor 32 needs to be replaced, the sliding column is slid towards the first fixed column 33 through the protrusion. The spring 35 is compressed, causing the sliding column to move out of the first through hole 37 and the second through hole 38. There is a gap between the sliding column 36 and the vision sensor 32, so the vision sensor 32 can be taken out for replacement, which is convenient for replacement and installation.

[0038] The working / implementation / use principle of this invention is as follows: FOG LCD screens that need to undergo impedance testing after standing for 10 minutes in the automatic silver paste application machine of each area in the circumferential direction of the robotic arm column 2 are transported through the feeding and conveying mechanism 3. At this time, the transparent suction cup 7 is located above the feeding and conveying mechanism 3. When the FOG LCD screen to be tested is transported to below the transparent suction cup 7, one of the gears 11 of the lifting component rotates, driving the other gear 11 and the two racks 10 to rotate, so that the lifting frame 9 drives the transparent suction cup 7 to move down to contact the FOG LCD screen to be tested. The vacuum generator 6 is activated to form a negative pressure to adsorb the FOG LCD screen to be tested. Multiple transparent suction cups 7 adsorb the corresponding FOG LCD screens to be inspected. The lifting frame 9 moves upward, causing the transparent suction cups 7 adsorbing the FOG LCD screens to move upward. The robotic arm column 2 rotates, causing the multiple transparent suction cups 7 adsorbing the FOG LCD screens to rotate above the test platform 4. Using one robotic arm column 2, multiple transparent suction cups 7 can be rotated to different workstations for processing, eliminating the need to design robotic arm structures for each workstation and reducing costs. The lifting frame 9 moves downward, causing the transparent suction cups 7 to move downward. The transparent suction cups 7 are released, allowing the FOG LCD screens to be inspected to be placed on the test platform 4 for testing. The marking pen 23 is moved forward, backward, up, down, left, and right by the marking component to mark the non-conforming areas. After the test is completed, the indicator light at the corresponding position displays a green or red light according to the test result. After all tests are completed, the transparent suction cup 7 lifts the tested FOG LCD screen, and the robotic arm column 2 rotates again, positioning the tested FOG LCD screen above the unloading and conveying mechanism 5. The lifting frame 9 lowers, and the transparent suction cup 7 releases, allowing the tested FOG LCD screen to be transported on the unloading and conveying mechanism 5 according to the test results. If the silver paste resistance values ​​at all locations are qualified, the unloading and conveying mechanism 5 transports the screen to the next process for further processing. If the silver paste resistance value at one location is unqualified, the baffle 13 actuates to guide the unqualified FOG LCD screen to the defective product area of ​​the rework conveying mechanism 12 for rework. Multiple lifting components can act independently for adsorption testing based on the test results of the monitoring components, thus broadening the applicability.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A FOG liquid crystal screen silver paste resistance value testing device, characterized in that, The utility model provides a kind of FOG liquid crystal screen silver paste resistance test device, including workbench, mechanical arm stand, multiple test transmission components, multiple feeding and discharging components, mounting frame and multiple monitoring mechanisms, the mechanical arm stand is rotationally connected on the workbench, multiple test transmission components are evenly distributed in the circumferential direction of the mechanical arm stand, multiple feeding and discharging components are arranged on the mechanical arm stand, and correspond with each test transmission component respectively;The test transmission component includes feeding transmission mechanism, test table and discharging transmission mechanism, the feeding transmission mechanism, the test table and the discharging transmission mechanism are located in the circumferential direction of the mechanical arm stand, the feeding and discharging component includes lifting piece, vacuum generator, transparent suction cup and connecting pipe, the lifting piece is located on the mechanical arm stand, the vacuum generator is located on the lifting piece, the transparent suction cup is located towards the feeding transmission mechanism, the test table and the discharging transmission mechanism side, the connecting pipe is communicated with the vacuum generator and the transparent suction cup;The mounting frame is located above the mechanical arm stand, and multiple monitoring mechanisms are respectively towards multiple test transmission components; The monitoring mechanism includes connecting mounting seat, screw rod, two fixed rods, first sliding block, two second sliding blocks, moving rod, three monitoring components and three connecting seats, the connecting mounting seat is fixedly connected to the mounting frame, the screw rod is rotationally connected with the connecting mounting seat, two fixed rods are fixedly connected with the connecting mounting seat and are respectively located on the two sides of the screw rod, and have the same included angle with the screw rod, the first sliding block is slidably connected with the screw rod, two second sliding blocks are slidably connected with two fixed rods respectively, the moving rod is slidably connected with the first sliding block and two second sliding blocks, three monitoring components are fixedly connected with the first sliding block and two second sliding blocks through three connecting seats respectively.

2. The FOG liquid crystal screen resistance test device according to claim 1, characterized in that, The lifting piece includes lifting frame, two racks and two gears, the lifting frame is slidably connected with the mechanical arm stand and fixedly connected with the vacuum generator, two racks are fixedly connected on the two sides of the lifting frame and oppositely arranged in the lifting frame, two gears are engaged and respectively engaged with two adjacent racks.

3. The FOG liquid crystal panel resistance test device according to claim 1, characterized in that, The test transmission component further includes rework transmission mechanism and baffle, the rework transmission mechanism is located on one side of the discharging transmission mechanism, and the baffle is rotationally connected at the intersection of the discharging transmission mechanism and the rework transmission mechanism.

4. The FOG liquid crystal panel resistance test device according to claim 1, characterized in that, The FOG liquid crystal screen silver paste resistance test device further includes multiple identification components, each identification component is located on one side of each test table, the identification component includes horizontal fixing seat, first connecting block and vertical fixing seat, the horizontal fixing seat is located on one side of the test table, the first connecting block is slidably connected with the horizontal fixing seat, the vertical fixing seat is perpendicular to the horizontal fixing seat and fixedly connected with the first connecting block.

5. The FOG liquid crystal panel resistance test device according to claim 4, characterized in that, The identification component further includes second connecting block, and the second connecting block is slidably connected with the vertical fixing seat.

6. The FOG liquid crystal panel resistance test device according to claim 5, characterized in that, The identification component further includes up-down moving piece, and the up-down moving piece is located on the second connecting block.

7. The FOG liquid crystal panel resistance test device according to claim 6, characterized in that, The upper and lower moving part comprises a mounting fixed base, a driving cylinder, a slider with an arc surface, a moving column, a connecting rod and a marking pen, the mounting fixed base is rotationally connected to the second connecting block, the driving cylinder is fixedly connected with the mounting fixed base, the output end of the driving cylinder is fixedly connected with the slider with an arc surface, the moving column is abutted with the slider with an arc surface and is slidingly connected with the mounting fixed base, the connecting rod is fixedly connected with the moving column, and the marking pen is fixedly connected with the connecting rod and faces the test table.

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