Auxiliary device for display screen detection

Abstract

The utility model relates to the technical field of display screen production equipment, and provides an auxiliary device for display screen detection, which comprises a track table, two sliding seats and two mechanical arms, the two sliding seats and the two mechanical arms are arranged on the track table, and a driving piece is arranged on the track table; the sliding base can drive the mechanical arm to move back and forth between the feeding station and the detection station. The mechanical arm is provided with a suction cup assembly capable of adsorbing the display screen, the mechanical arm can drive the display screen to rotate at the detection station, and the mechanical arm can adsorb and fix the display screen at the feeding station; according to the utility model, through alternate work of the two mechanical arms, the detection efficiency is improved, and stable adsorption of display screens with different sizes is satisfied.

Description

Technical Field

[0001] This utility model relates to the field of display screen production equipment technology, and in particular to an auxiliary device for display screen testing. Background Technology

[0002] After production, the display screen needs to undergo various tests to ensure its quality, performance, and reliability. General tests include appearance inspection, functional testing, electrical characteristic testing, and lifespan testing. These tests check for defects in the screen's appearance, ensure the displayed image is normal, test electrical parameters such as voltage and current, and test the screen's waterproof and dustproof rating.

[0003] CN221269000U discloses an LCD panel defect detection device, comprising: a bracket, a conveyor belt disposed on the inner side of the bracket, a detection platform fixed on the upper surface of one end of the bracket, a defect detector embedded in the lower surface of the middle part of the detection platform, LED light boards embedded on the lower surfaces of both sides of the detection platform, and a support plate fixed on the upper surface of the other end of the bracket; an electric telescopic rod, which is bolted to the outer wall of one side of the support plate, and a push plate fixed to the telescopic end of the electric telescopic rod.

[0004] CN221607100U discloses a flipping device for manufacturing a liquid crystal display screen, comprising: a drive motor, the output shaft of which is connected to a rotating drum, the other end of which is fixed to a first rotating arm, the outer wall of the other end of which is bolted to a first motor, and the output shaft of the first motor passing through one end of the first rotating arm via a bearing, the output shaft of the first motor being connected to a second rotating arm, the other end of which is connected to a connecting rod, and the connection between the connecting rod and the second rotating arm being bolted to a second motor; a suction plate, which is fixed to the outer wall of the end of the connecting rod away from the second rotating arm, air pumps being bolted to both sides of the suction plate, the input end of which is connected to an air pipe, and the air pipe passing through the interior of both ends of the suction plate, a suction cup being connected to one side of the outer wall of the air pipe, and one end of the suction cup passing through the outer wall of the suction plate.

[0005] In existing technologies, after completing the testing of a display screen, it is necessary to manually disassemble the display screen and install a new display screen to be tested, which affects the testing efficiency. At the same time, in the display screen testing equipment, it is usually necessary to move or flip the display screen to meet various testing requirements, so it is necessary to adsorb the display screen. Existing suction cup components cannot stably adapt to and fix display screens of different sizes. Utility Model Content

[0006] In existing technologies, after completing the inspection of a display screen, it is necessary to manually disassemble the display screen and install a new one to be inspected, which affects inspection efficiency. At the same time, in display screen inspection equipment, it is usually necessary to move or flip the display screen to meet various inspection requirements, so it is necessary to adsorb the display screen. Existing suction cup components cannot stably adapt to the fixing of display screens of different sizes. Specifically, existing suction cup components usually use a small suction cup for fixing, but when using a small suction cup to fix a large display screen, the large size of the display screen will cause the edge of the display screen to wobble during inspection. However, it is difficult to adsorb and fix a small display screen when using a large suction cup. Currently, there are methods to fix display screens of different sizes by changing the suction cup, but the operation is relatively inconvenient.

[0007] In view of this, the present invention aims to provide an auxiliary device for display screen testing. In the present invention, the auxiliary device includes a track platform, two slides disposed on the track platform, and two robotic arms mounted on the slides. The track platform is provided with a drive unit that independently controls the movement of the two slides.

[0008] The sliding block enables the robotic arm to move back and forth between the loading station and the inspection station. There are two loading stations and one inspection station located between the two loading stations. That is, the inspection personnel perform inspection work on the display screen at the inspection station, and the two robotic arms move back and forth between the loading station and the inspection station to serve the inspection personnel at the inspection station. The robotic arm is equipped with a suction cup assembly that can adhere to the display screen. The robotic arm can drive the display screen to rotate at the inspection station and can also adhere and fix the display screen at the loading station.

[0009] Furthermore, the robotic arm is equipped with a binocular vision camera, which is used to acquire the position of the display screen to be inspected within the loading station.

[0010] Furthermore, the suction cup assembly includes a vacuum pump and a seal, the seal including a support plate and a sealing disc, the sealing disc cooperating with the support plate to form multiple independent adsorption spaces in the middle of the sealing disc;

[0011] Each of the adsorption spaces is provided with a vacuum port, which is located on the support plate, and each of the vacuum ports is provided with a gas valve.

[0012] Furthermore, each of the adsorption spaces is equipped with an infrared sensor to detect whether a display screen exists in the corresponding area of ​​the adsorption space.

[0013] Furthermore, the support plate is provided with air channels, and each of the adsorption spaces is connected to the air channels. The support plate is provided with a pressure relief valve and a vacuum connector connected to the air channels. The pressure relief valve is connected to the external atmosphere, and the vacuum connector is connected to a vacuum pump.

[0014] Furthermore, the robotic arm includes a rotating connector, a main arm connector, and a forearm connector connected in sequence; a movable connecting frame is also provided on the forearm connector, and the suction cup assembly is mounted on the movable connecting frame;

[0015] The robotic arm also includes a servo motor capable of driving the rotation of the rotating connector, the main arm connector, the forearm connector, and the movement of the movable connecting frame.

[0016] The auxiliary device for display screen testing disclosed in this utility model uses a track platform and two robotic arms on the track platform. The robotic arms drive a suction cup assembly to automatically adsorb and fix the display screen, and can perform operations such as flipping and multi-angle adjustment of the display screen to meet various requirements for display screen testing. At the same time, two robotic arms work in conjunction with one testing station. The two robotic arms alternately feed materials to the feeding station. When the display screen on one robotic arm is being tested, the other robotic arm moves to the feeding station to unload and re-adsorb the display screen. The two work alternately to improve work efficiency and avoid the phenomenon of the testing station being idle.

[0017] Meanwhile, by setting multiple independent adsorption spaces on the suction cup assembly and installing air valves in the vacuum ports of each adsorption space, the number of adsorption spaces that can work can be selected according to the size of the display screen. In other words, the adsorption area can be adjusted to match different sizes of display screens. The operation is convenient, and the larger the size of the display screen, the larger the adsorption area, which can ensure the stability of adsorption.

[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a structural schematic diagram of one embodiment of the present invention;

[0021] Figure 2 This is a side view of a robotic arm in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the sealing element in one embodiment of the present invention;

[0023] Figure 4 for Figure 3 A cross-sectional view along the AA direction.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100. Loading station; 200. Inspection station; 1. Track platform; 2. Slide; 3. Robotic arm; 31. Rotating connector; 32. Main arm connector; 33. Forearm connector; 34. Movable connecting frame; 4. Suction cup assembly; 41. Support plate; 42. Sealing plate; 43. Adsorption space; 44. Vacuum port; 45. Air passage; 46. Pressure relief valve; 47. Vacuum connector; 5. Binocular vision camera. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices. "Fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connections, welding, or bonding.

[0029] In existing technologies, after completing the inspection of a display screen, it is necessary to manually disassemble the display screen and install a new one to be inspected, which affects inspection efficiency. At the same time, in display screen inspection equipment, it is usually necessary to move or flip the display screen to meet various inspection requirements, so it is necessary to adsorb the display screen. Existing suction cup components cannot stably adapt to the fixing of display screens of different sizes. Specifically, existing suction cup components usually use a small suction cup for fixing, but when using a small suction cup to fix a large display screen, the large size of the display screen will cause the edge of the display screen to wobble during inspection. However, it is difficult to adsorb and fix a small display screen when using a large suction cup. Currently, there are methods to fix display screens of different sizes by changing the suction cup, but the operation is relatively inconvenient.

[0030] This utility model provides an auxiliary device for display screen testing, such as... Figure 1 and Figure 2 As shown, in this embodiment, the auxiliary device includes a track platform 1, two slides 2 mounted on the track platform 1, and two robotic arms 3 mounted on the slides 2. A track is provided on the track platform 1, and the two slides 2 are slidably mounted on the track. A drive unit is also provided inside the track platform 1, which can independently control the movement of the two slides 2. The drive unit is a drive motor assembly. The robotic arms 3 are equipped with suction cup assemblies 4 capable of adsorbing the display screen to fix the display screen for subsequent testing. The slides 2 can drive the robotic arms 3, i.e., the suction cup assemblies 4 on the robotic arms 3, to move back and forth between the loading station 100 and the testing station 200. In this embodiment, the loading station 100 refers to the location where the suction cup assemblies 4 on the robotic arms 3 adsorb the display screen. The display station and the station where the display screen is detached after testing are described. The testing station 200 refers to the station where the display screen is tested after the suction cup assembly 4 adsorbs the display screen. In this embodiment, there are two loading stations 100 and one testing station 200 located between the two loading stations 100. The structure of the robotic arm 3 can drive the display screen to rotate at the testing station 200 to meet the flipping requirements during testing. The robotic arm 3 can drive the suction cup assembly 4 on it to adsorb and fix the display screen to be tested at the loading station 100. After adsorbing and fixing the display screen, the robotic arm 3 moves from the loading station 100 to the testing station 200. After the test is completed, it returns to the loading station 100, detaches the display screen after the test is completed, and re-adsorbs the display screen to be tested.

[0031] In this embodiment, the inspection personnel perform various inspections on the display screen at the inspection station 200. Two robotic arms 3 move back and forth between the loading station 100 and the inspection station 200 to serve the inspection personnel at the inspection station 200 (in other embodiments, an automated inspection system can replace manual inspection). The loading station 100 is equipped with a loading platform and an unloading platform. The loading platform holds the display screen to be inspected, and the unloading platform has two parts: one part holds the display screen that has passed the inspection, and the other part holds the display screen that has failed the inspection. The loading platform and the unloading platform can be configured as a workbench, a conveyor belt, a placement platform, a transfer vehicle, etc.

[0032] This utility model utilizes a track platform 1 and two robotic arms 3 on the track platform 1. The robotic arms 3 drive the suction cup assembly 4 to automatically adsorb and fix the display screen, and can perform operations such as flipping and multi-angle adjustment of the display screen to meet various requirements for display screen testing. At the same time, the two robotic arms 3 work in conjunction with a testing station 200. The two robotic arms 3 alternately feed materials to the feeding station 100. When the display screen on one robotic arm 3 is being tested, the other robotic arm 3 moves to the feeding station 100 to unload and re-adsorb the display screen. The two work alternately to improve work efficiency and avoid the phenomenon of the testing station 200 being idle.

[0033] To improve the accuracy of the suction cup assembly 4 in adsorbing the display screen, a binocular vision camera 5, i.e., a camera assembly, is set on the robotic arm 3. The binocular vision camera 5 remotely transmits real-time captured images, locates the position of the display screen, and can plan the movement path of the robotic arm 3 in real time, so that the suction cup assembly 4 can stably adsorb the display screen to be tested.

[0034] To improve the stability of the adsorption display screen and enable it to stably adsorb displays of different sizes; such as Figure 3 and Figure 4As shown, the suction cup assembly 4 is configured as a vacuum pump and a sealing element. The sealing element includes a support plate 41 and a sealing disc 42. A groove is provided on the support plate 41 for one end of the sealing disc 42 to be embedded. The groove is coated with sealant for connection and fixation. The sealing disc 42 is made of a flexible sealing material, such as silicone or rubber. The sealing disc 42 and the support plate 41 cooperate to form multiple independent adsorption spaces 43 in the middle of the sealing disc 42. Each adsorption space 43 is provided with a vacuum port 44, which is opened on the support plate 41. Each vacuum port 44 is provided with an air valve. The air valve can control the connection and disconnection between each adsorption space 43 and the vacuum pump assembly; the support plate 41 has an air passage 45, and each adsorption space 43 is connected to the air passage 45. The air passage 45 can allow multiple adsorption spaces 43 to adsorb simultaneously; the support plate 41 is equipped with a pressure relief valve 46 and a vacuum connector 47 connected to the air passage 45. The pressure relief valve 46 is connected to the external atmosphere, and the vacuum connector 47 is connected to the vacuum pump; a pressure sensor is installed in the air passage 45 to adjust the pumping pressure of the vacuum pump in a timely manner, so as to ensure stable adsorption and avoid damage to the display screen.

[0035] By setting multiple independent adsorption spaces 43 on the suction cup assembly 4 and installing air valves in the vacuum ports 44 of each adsorption space 43, the number of adsorption spaces 43 in operation can be selected according to the size of the display screen (i.e., fewer adsorption channels are opened when the display screen size is small, more adsorption channels are opened when the display screen size is large, and all adsorption channels are opened when the display screen size is larger than the sealing plate 42; opening an adsorption channel refers to opening the air valve of that adsorption channel). This allows for the stable adsorption of display screens of different sizes. By adjusting the number of adsorption channels opened, different sizes of display screens can be matched for adsorption, that is, the adsorption area can be adjusted to match different sizes of display screens. The operation is convenient, and the larger the size of the display screen, the larger the adsorption area, which can ensure the stability of adsorption.

[0036] In addition, the setting of multiple independent adsorption channels ensures that if a certain adsorption area malfunctions, other areas can still perform adsorption work on the display screen normally, preventing the display screen from falling off; at the same time, the adsorption space 43 of multiple areas can improve the uniformity of adsorption.

[0037] To facilitate easy determination of the display screen size and quick selection of the valve to be opened, an infrared sensor is installed in each adsorption space 43. This infrared sensor is used to detect whether a display screen exists in the corresponding area of ​​the adsorption space 43. In this embodiment, the infrared sensor is used to detect whether the corresponding adsorption space 43 is covered by the display screen. When it is detected that the adsorption space 43 is covered by the display screen, it indicates that the display screen can cooperate with the display screen to form a sealed adsorption space 43 to adsorb the display screen, and then the valve of the adsorption space 43 is opened.

[0038] In this embodiment, as Figure 2 As shown, the robotic arm 3 includes a rotating connector 31, a main arm connector 32, and a forearm connector 33 connected in sequence; a movable connecting frame 34 is also provided on the forearm connector 33, and a suction cup assembly 4 is mounted on the movable connecting frame 34; the robotic arm 3 also includes a servo motor capable of driving the rotating connector 31, the main arm connector 32, and the forearm connector 33 to rotate and the movable connecting frame 34 to move; the servo motor is a small reducer device with feedback signals, which can control the required output angle through signal feedback, and can also provide feedback information on the rotation angle; the rotating connector 31, the main arm connector 32, the forearm connector 33, and the forearm connector 33 are connected in sequence. Both the rotating arm connector 33 and the movable connecting frame 34 are made of alloy steel to ensure strength. In this embodiment, the rotating connector 31 can rotate horizontally on the slide 2 to meet the needs of adjusting the orientation of the display screen. The main arm connector 32 and the forearm connector 33 can both rotate vertically to meet the height adjustment of the adsorption display screen. At the same time, the suction cup assembly 4 can be flipped downwards to adsorb the display screen on the workbench, conveyor belt, placement platform, transfer vehicle and other equipment. The movable connecting frame 34 has a rotating part and a swinging part, and both the rotating part and the swinging part are equipped with servo motor drive to meet the needs of the display screen to flip and rotate up and down to adjust the orientation.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary device for display screen testing, characterized in that, It includes a track platform (1), two slides (2) on the track platform (1) and two robotic arms (3) mounted on the slides (2). The track platform (1) is provided with a drive unit that independently controls the movement of the two slides (2). The slide (2) can drive the robotic arm (3) to move back and forth between the loading station (100) and the inspection station (200). There are two loading stations (100) and one inspection station (200) located between the two loading stations (100). The robotic arm (3) is equipped with a suction cup assembly (4) that can adsorb the display screen. The robotic arm (3) can drive the display screen to rotate at the inspection station (200) and can adsorb and fix the display screen at the loading station (100).

2. The auxiliary device for display screen testing according to claim 1, characterized in that, The robotic arm (3) is equipped with a binocular vision camera (5), which is used to obtain the position of the display screen to be tested in the loading station (100).

3. The auxiliary device for display screen testing according to claim 1 or 2, characterized in that, The suction cup assembly (4) includes a vacuum pump and a seal. The seal includes a support plate (41) and a sealing disc (42). The sealing disc (42) cooperates with the support plate (41) to form multiple independent adsorption spaces (43) in the middle of the sealing disc (42). Each of the adsorption spaces (43) is provided with a vacuum port (44), which is opened on the support plate (41), and each of the vacuum ports (44) is provided with a gas valve.

4. The auxiliary device for display screen testing according to claim 3, characterized in that, Each of the adsorption spaces (43) is equipped with an infrared sensor to detect whether a display screen exists in the corresponding area of ​​the adsorption space (43).

5. The auxiliary device for display screen testing according to claim 3, characterized in that, The support plate (41) is provided with an air passage (45), and each of the adsorption spaces (43) is connected to the air passage (45). The support plate (41) is provided with a pressure relief valve (46) and a vacuum connector (47) connected to the air passage (45). The pressure relief valve (46) is connected to the external atmosphere, and the vacuum connector (47) is connected to a vacuum pump.

6. The auxiliary device for display screen detection according to claim 1 or 2, characterized in that, The robotic arm (3) includes a rotating connector (31), a main arm connector (32), and a forearm connector (33) connected in sequence; a movable connecting frame (34) is also provided on the forearm connector (33), and the suction cup assembly (4) is installed on the movable connecting frame (34); The robotic arm (3) also includes a servo motor capable of driving the rotation of the rotating connector (31), the main arm connector (32), the forearm connector (33), and the movement of the movable connecting frame (34).

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