A high-efficiency detection device and method for electrical performance of a high-definition display screen display module

Abstract

The present invention discloses an efficient detection device and method for the electrical performance of a display module of a high-definition display screen. The present invention relates to the technical field of detecting the electrical performance of a display module. The device comprises a pad, on which a flat belt conveyor, a turnover mechanism, a sleeve removal and detection mechanism are sequentially arranged from left to right. The front and rear sides of the frame of the flat belt conveyor are fixed with guard plates; the turnover mechanism comprises a linear cylinder fixed on the pad, a rotary cylinder fixed on the top surface of the linear cylinder moving part, a vertical cylinder fixed on the rotating shaft of the rotary cylinder, a material receiving seat fixed on the action end of the vertical cylinder piston rod, and a stop opening penetrating the left end face thereof to the left is provided on the top surface of the material receiving seat; the sleeve removal and detection mechanism comprises a bracket fixed on the pad and located at the rear side of the linear cylinder, and a stepping motor fixed on the top of the bracket. The beneficial effects of the present invention are: greatly reducing the work intensity of workers and greatly improving the efficiency of electrical performance detection of display modules.

Description

Technical Field

[0001] The present invention relates to the technical field of detecting the electrical performance of a display module, and in particular to a device and method for efficiently detecting the electrical performance of a display module of a high-definition display screen. Background Art

[0002] The face recognition device is used to identify the facial features of employees. A high-definition display screen is installed on the face recognition device. A display module is installed inside the face recognition device. The display module is used to transmit the image signal to the high-definition display screen, and the high-definition display screen can display the high-definition image. Figure 1~Figure 2 The display module 1 shown includes a module body 2, a connector 3 and a mounting plate 4 respectively fixed on the top and bottom surfaces of the module body 2, wherein the connector 3 is used to connect to a circuit board installed in the face recognition device, and a protective cover 5 is provided on the outside of the connector 3, and the protective cover 5 is used to protect the connector 3, and the mounting plate serves to install and fix the module body 2.

[0003] After a batch of display modules 1 are produced in the workshop, the process requires testing the electrical properties (i.e. resistance value) of each display module 1. The method for testing the electrical properties of each display module 1 in the workshop is:

[0004] S1. A worker takes out a display module 1 to be tested from a material basket, and then places it flat on a testing table. The worker then removes the protective cover 5 on the display module 1 from the connector 3 to expose the connector 3 to the outside.

[0005] S2. The worker touches the detection rod of the electrical performance detection device to the top surface of the connector 3. At this time, the electrical performance detection device detects the resistance value of the display module 1. If the detected resistance value is within the design range, the worker determines that the display module 1 is a qualified product. Then the worker puts the removed protective cover 5 on the connector 3 of the qualified product, and then the worker puts the qualified product on the finished product temporary storage table to facilitate the subsequent workers to transport the qualified products to the packaging process;

[0006] If the detected resistance value is not within the design range, the worker determines that the display module 1 is a defective product, and then the worker puts the removed protective cover 5 on the connector 3 of the defective product, and then puts the defective product on the rework temporary storage table to facilitate subsequent workers to repair the defective product, thereby finally realizing the detection of the electrical performance of the first display module 1;

[0007] S3. The worker repeats the operations of steps S1 to S2 to continuously test the electrical properties of multiple display modules 1.

[0008] However, although the method in the workshop can detect the electrical properties of multiple display modules 1, in actual operation, there are still the following technical defects:

[0009] I. In step S1, the display modules 1 in the material basket need to be taken out manually one by one and placed on the testing table. The entire operation is completed manually, which not only increases the workload of the workers, but also increases the testing time of the electrical performance of a single display module 1, thereby reducing the testing efficiency of the electrical performance of the display module 1.

[0010] II. In step S1, after the electrical performance testing equipment 27 tests the resistance value of the display module 1, it is still necessary to manually put the protective cover 5 on the connector 3 of the qualified or unqualified product again. The entire operation is completed manually, which undoubtedly increases the testing time of the electrical performance of a single display module 1 and further reduces the testing efficiency of the electrical performance of the display module 1.

[0011] III. In step S2, after the electrical performance test of the display module 1 is completed, qualified products need to be manually placed on the finished product temporary storage table, or unqualified products need to be placed on the rework temporary storage table. The entire operation is also completed manually, which not only increases the work intensity of the workers, but also reduces the efficiency of the electrical performance test of the display module 1. Therefore, there is an urgent need for a test device and method that greatly reduces the work intensity of the workers and greatly improves the efficiency of the electrical performance test of the display module. Summary of the invention

[0012] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a device and method for efficiently detecting the electrical properties of a high-definition display screen display module, which greatly reduces the workload of workers and greatly improves the efficiency of detecting the electrical properties of the display module.

[0013] The object of the present invention is achieved by the following technical solutions: an efficient detection device for electrical performance of a display module of a high-definition display screen, comprising a pad, on which a flat belt conveyor, a turnover mechanism, a sleeve removal mechanism and a detection mechanism are arranged in sequence from left to right, and guard plates are fixedly arranged on the front and rear sides of the frame of the flat belt conveyor, and the spacing between the inner end faces of the two guard plates is equal to the longitudinal width of the mounting plate of the display module;

[0014] The turnover mechanism includes a linear cylinder fixed on the backing plate, a rotary cylinder fixed on the top surface of the linear cylinder moving part, a vertical cylinder fixed on the rotating shaft of the rotary cylinder, a material receiving seat fixed on the action end of the vertical cylinder piston rod, a stop opening penetrating the left end surface to the left is provided on the top surface of the material receiving seat, the bottom wall of the stop opening is flush with the upper side belt of the flat belt of the flat belt conveyor, and the longitudinal width of the stop opening is equal to the longitudinal width of the mounting plate of the display module; a discharge cylinder is fixed on the right end portion of the material receiving seat, and a discharge plate located directly above the stop opening is fixed on the piston rod of the discharge cylinder;

[0015] The sleeve removal and detection mechanism includes a bracket fixed on the pad and located at the rear side of the linear cylinder, a stepper motor fixed on the top of the bracket, the output shaft of the stepper motor passes through the bracket and is connected to a rotating plate on the extended end, a detection cylinder and a sleeve removal cylinder are fixed on the top surface of the rotating plate, the detection cylinder is located on the left side of the stepper motor, and the sleeve removal cylinder is located on the right side of the stepper motor, the piston rod of the sleeve removal cylinder passes through the rotating plate downward, and a frame is fixed on the extended end, a suction head is fixed on the bottom edge of the frame, and the top port of the suction head is connected to the working port of the vacuum pump; the piston rod of the detection cylinder passes through the rotating plate downward, and an electrical performance detection device is fixed on the extended end, and the detection rod of the electrical performance detection device is set downward.

[0016] A temporary storage mechanism is also provided on the pad and on the right side of the linear cylinder. The temporary storage mechanism includes support legs fixed on the pad, a rework temporary storage table is fixed on the top of the support legs, and a finished product temporary storage table is provided directly above the rework temporary storage table.

[0017] A connecting plate is fixedly arranged between the outer edge of the rework temporary storage table and the outer edge of the finished product temporary storage table.

[0018] A buffer pad is fixedly arranged in the stopper and on the right side wall thereof, and the depth of the stopper is greater than the thickness of the mounting plate of the display module.

[0019] A turntable is fixedly arranged on the rotating shaft of the rotary cylinder, a cylinder body of the vertical cylinder is fixedly arranged on the top surface of the turntable, and the vertical cylinder is coaxially arranged with the rotary cylinder.

[0020] The diameter of the suction head is smaller than the horizontal width of the protective cover on the display module. A hose is connected to the top port of the suction head, and the other end of the hose is connected to the working port of the vacuum pump.

[0021] The detection device also includes a controller, which is electrically connected to the vacuum pump, the rotary cylinder, the vertical cylinder, the unloading cylinder, the linear cylinder, the detection cylinder, the sleeve-removing cylinder, and the flat belt conveyor via a signal line.

[0022] A method for efficiently detecting the electrical performance of a display module of a high-definition display screen comprises the following steps:

[0023] S1. Pre-installation of multiple display modules to be tested: A worker takes out multiple display modules to be tested, places the mounting plates of each display module on the flat belt of the flat belt conveyor, and ensures that the mounting plates of each display module are just within the area surrounded by the two guard plates, thereby achieving the pre-installation of multiple display modules to be tested. At this time, the mounting plate of the rightmost display module is just facing the stopper of the turnover mechanism;

[0024] S2. Loading the rightmost display module on the flat belt: The worker controls the flat belt conveyor to start, and the flat belt of the flat belt conveyor rotates clockwise, and the flat belt drives each display module on it to move to the right. The rightmost display module is separated from the flat belt and enters the stopper of the receiving seat, and the mounting plate of the display module is pressed against the buffer pad, thereby realizing the loading of the first display module;

[0025] S3: Testing the electrical performance of the first display module. The specific steps are as follows:

[0026] S31, the linear cylinder of the control turnover mechanism is started, the moving part of the linear cylinder moves to the right, the moving part drives the rotary cylinder, the vertical cylinder and the material receiving seat to move to the right, and the material receiving seat drives the display module therein to move to the right synchronously. When the moving part moves to the set stroke, the controller controls the linear cylinder to close, and at this time, the display module enters the unsleeving station of the unsleeving and detection mechanism;

[0027] S32, the sleeve removal process: the piston rod of the sleeve removal cylinder of the sleeve removal and detection mechanism is controlled to extend downward, the piston rod drives the frame to move downward, the frame drives the suction head to move downward, and the suction head moves toward the protective sleeve of the display module. When the piston rod of the sleeve removal cylinder is fully extended, the bottom surface of the suction head just contacts the top surface of the protective sleeve; then the vacuum pump is controlled to start, the vacuum pump vacuumizes the hose and the suction head, and under negative pressure, the top wall of the protective sleeve is adsorbed and fixed on the suction head; then the piston rod of the sleeve removal cylinder is controlled to retract upward, the piston rod drives the frame and the suction head to move upward, and the suction head drives the protective sleeve to move upward, so that the protective sleeve sleeved on the joint is removed;

[0028] S33, testing process: control the stepper motor of the unsleeving and testing mechanism to start, the stepper motor drives the rotating plate to rotate, the rotating plate drives the testing cylinder and the unsleeving cylinder to rotate synchronously, when the rotating plate rotates 180°, the controller controls the stepper motor to turn off, at this time, the testing cylinder, the electrical performance testing device and the testing rod are just above the joint of the display module; then control the piston rod of the testing cylinder to extend downward, the piston rod drives the electrical performance testing device to move downward, the electrical performance testing device drives the testing rod to move downward, the testing rod moves toward the joint, when the piston rod of the testing cylinder is fully extended, the testing rod just contacts the top surface of the joint, at this time, the electrical performance testing device detects the resistance value of the display module;

[0029] S4. The electrical performance testing equipment transmits the detected resistance value to the controller. If the detected resistance value is within the design range, the worker determines that the display module is a qualified product. The worker transfers the qualified products to the finished product temporary storage table in the following operation method:

[0030] S41, control the piston rod of the detection cylinder to retract upward, and the piston rod drives the detection rod to move away from the qualified product; then control the stepper motor to start, the stepper motor drives the rotating plate to rotate, and the rotating plate drives the protective cover fixed on the suction head to rotate, when the protective cover rotates to the top of the joint of the qualified product, control the piston rod of the sleeve removal cylinder to extend downward, the piston rod drives the suction head to move downward, the suction head drives the protective cover to move downward, and the protective cover is sleeved on the joint of the qualified product from top to bottom; then control the vacuum pump to close, and the suction head no longer absorbs the protective cover; then control the piston rod of the sleeve removal cylinder to retract upward, and the piston rod drives the suction head to move upward, so that the suction head moves away from the qualified product;

[0031] S42, control the rotary cylinder of the turnover mechanism to start, the rotary cylinder drives the vertical cylinder and the receiving seat to rotate synchronously, and the receiving seat drives the qualified products to rotate synchronously. When the qualified products rotate after degrees, the controller controls the rotary cylinder to close, and at this time, the qualified products face the finished product temporary storage table;

[0032] S43, the linear cylinder of the control turnover mechanism is started, and the moving part of the linear cylinder continues to move to the right, and the moving part drives the rotary cylinder, the vertical cylinder and the material receiving seat to move to the right, and the material receiving seat drives the qualified products to move to the right. When the qualified products are close to the finished product temporary storage table, the controller controls the linear cylinder to close;

[0033] S44, controlling the piston rod of the unloading cylinder on the turnover mechanism to extend to the right, the piston rod drives the unloading plate to move to the right, the unloading plate pushes the qualified products to the right, so as to push the qualified products to the finished product temporary storage table, thereby finally realizing the turnover of qualified products to the finished product temporary storage table, so as to facilitate the subsequent workers to transport the qualified products to the packaging process;

[0034] If the detected resistance value is not within the design range, the worker determines that the display module is unqualified. The worker transfers the unqualified products to the rework temporary storage station in the following way:

[0035] S45, control the piston rod of the detection cylinder to retract upward, and the piston rod drives the detection rod to move away from the defective product; then control the stepper motor to start, so that the protective cover adsorbed and fixed on the suction head rotates to the top of the joint of the defective product; then control the piston rod of the sleeve removal cylinder to extend downward, the piston rod drives the suction head to move downward, and the suction head drives the protective cover to move downward, and the protective cover is sleeved on the joint of the defective product from top to bottom; then control the vacuum pump to close, and the suction head no longer adsorbs the protective cover; then control the piston rod of the sleeve removal cylinder to retract upward, so that the suction head moves away from the defective product;

[0036] S46, control the rotary cylinder of the turnover mechanism to start, the rotary cylinder drives the vertical cylinder and the receiving seat to rotate synchronously, the receiving seat drives the unqualified products to rotate synchronously, when the unqualified products rotate 180°, the controller controls the rotary cylinder to close;

[0037] S47, control the piston rod of the vertical cylinder to retract downward, and the piston rod drives the receiving seat to move downward. When the piston rod of the vertical cylinder is fully retracted, the defective products are just facing the rework temporary storage table; control the linear cylinder of the turnover mechanism to start, and the moving part of the linear cylinder continues to move to the right. The moving part drives the rotary cylinder, the vertical cylinder and the receiving seat to move to the right, and the receiving seat drives the defective products to move to the right. When the defective products are close to the rework temporary storage table, the controller controls the linear cylinder to close;

[0038] S48, controlling the piston rod of the unloading cylinder on the turnover mechanism to extend rightward, the piston rod drives the unloading plate to move rightward, the unloading plate pushes the unqualified products to the rightward, so as to push the unqualified products to the rework temporary storage table, thereby finally realizing the turnover of the unqualified products to the rework temporary storage table, so as to facilitate subsequent workers to repair the unqualified products, thereby finally realizing the detection of the electrical performance of the first display module;

[0039] S5. The worker repeats the operations of steps S2 to S4 to continuously perform electrical performance tests on multiple display modules on the flat belt conveyor.

[0040] The present invention has the following advantages: greatly reducing the work intensity of workers and greatly improving the efficiency of display module electrical performance detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural diagram of the display module;

[0042] Figure 2 for Figure 1 A top view of

[0043] Figure 3 It is a structural schematic diagram of the present invention;

[0044] Figure 4 It is a structural schematic diagram of a flat belt conveyor;

[0045] Figure 5 for Figure 4 A top view of

[0046] Figure 6 It is a structural diagram of the turnover mechanism;

[0047] Figure 7 This is the axonometric drawing of the material receiving seat;

[0048] Figure 8 for Figure 7 The main cross-sectional diagram of

[0049] Fig. 9 It is a structural schematic diagram of the unbundling and detection mechanism;

[0050] Fig.10It is a structural diagram of the temporary storage mechanism;

[0051] Fig.11 A schematic diagram for realizing pre-installation of multiple display modules to be tested;

[0052] Fig.12 It is a schematic diagram showing that the display module enters into the stopper of the material receiving seat;

[0053] Fig.13 A schematic diagram showing a module entering a sleeve removal station of a sleeve removal and inspection mechanism;

[0054] Fig.14 is a schematic diagram showing that the bottom surface of the suction head just contacts the top surface of the protective cover;

[0055] Fig.15 for Fig.14 A partial enlarged view of part A;

[0056] Fig.16 A schematic diagram of removing the protective cover on the joint;

[0057] Fig.17 It is a schematic diagram showing that the detection rod is located directly above the connector of the display module;

[0058] Fig.18 is a schematic diagram showing that the detection rod is in contact with the top surface of the joint;

[0059] Fig.19 for Fig.18 A partial enlarged view of part B;

[0060] Fig. 20 It is a schematic diagram of the suction head moving in a direction away from qualified products;

[0061] Fig.21 This is a schematic diagram of qualified products heading toward the finished product temporary storage station;

[0062] Fig. 22 This is a schematic diagram of qualified products approaching the finished product temporary storage station;

[0063] Fig.23 A schematic diagram of pushing qualified products onto the finished product temporary storage table;

[0064] Fig.24 It is a schematic diagram of the suction head moving in a direction away from defective products;

[0065] Fig.25 This is a schematic diagram of a defective product after being rotated 180°;

[0066] Fig.26 This is a schematic diagram of the non-conforming products heading to the rework temporary storage station;

[0067] Fig. 27This is a schematic diagram of defective products approaching the rework storage station;

[0068] Fig.28 A schematic diagram showing how to push defective products to the rework storage table;

[0069] In the figure:

[0070] 1-display module, 2-module body, 3-connector, 4-mounting plate, 5-protective cover;

[0071] 6- pad, 7- flat belt conveyor, 8- turnover mechanism, 9- sleeve removal and detection mechanism, 10- guard plate, 11- linear cylinder, 12- moving part, 13- rotary cylinder, 14- vertical cylinder, 15- material receiving seat, 16- stopper, 17- flat belt, 18- unloading cylinder, 19- unloading plate;

[0072] 20- bracket, 21- stepping motor, 22- rotating plate, 23- detection cylinder, 24- sleeve removal cylinder, 25- frame, 26- suction head, 27- electrical performance detection equipment, 28- detection rod;

[0073] 29-temporary storage mechanism, 30-rework temporary storage table, 31-finished product temporary storage table, 32-buffer pad, 34-qualified products, 35-unqualified products. DETAILED DESCRIPTION

[0074] The present invention is further described below in conjunction with the accompanying drawings, and the protection scope of the present invention is not limited to the following:

[0075] like Figure 3~Figure 10 As shown, a high-efficiency detection device for electrical properties of a display module of a high-definition display screen includes a pad 6, on which a flat belt conveyor 7, a turnover mechanism 8, a sleeve removal and detection mechanism 9 are arranged in sequence from left to right, and guard plates 10 are fixedly provided on the front and rear sides of the frame of the flat belt conveyor 7, and the spacing between the inner end faces of the two guard plates 10 is equal to the longitudinal width of the mounting plate 4 of the display module 1.

[0076] The turnover mechanism 8 includes a linear cylinder 11 fixed on the pad 6 and a rotary cylinder 13 fixed on the top surface of the moving part 12 of the linear cylinder 11. A vertical cylinder 14 is fixed on the rotating axis of the rotary cylinder 13, and a material receiving seat 15 is fixed on the active end of the piston rod of the vertical cylinder 14. A stop 16 is provided on the top surface of the material receiving seat 15 and passes through its left end face to the left. The bottom wall of the stop 16 is flush with the upper side belt of the flat belt 17 of the flat belt conveyor 7, and the longitudinal width of the stop 16 is equal to the longitudinal width of the mounting plate 4 of the display module 1; a discharge cylinder 18 is fixed on the right end portion of the material receiving seat 15, and a discharge plate 19 located directly above the stop 16 is fixed on the piston rod of the discharge cylinder 18; a buffer pad 32 is fixed in the stop 16 and on its right side wall, and the depth of the stop 16 is greater than the thickness of the mounting plate 4 of the display module 1.

[0077] The de-sleeving and detection mechanism 9 includes a bracket 20 fixedly mounted on the pad 6 and located at the rear side of the linear cylinder 11, a stepper motor 21 fixedly mounted on the top of the bracket 20, the output shaft of the stepper motor 21 passes through the bracket 20 and is connected to a rotating plate 22 on the extended end, a detection cylinder 23 and a de-sleeving cylinder 24 are fixedly mounted on the top surface of the rotating plate 22, the detection cylinder 23 is located on the left side of the stepper motor 21, and the de-sleeving cylinder 24 is located on the right side of the stepper motor 21, the piston rod of the de-sleeving cylinder 24 passes through the rotating plate 22 downward, and a frame 25 is fixedly mounted on the extended end, a suction head 26 is fixedly mounted on the bottom edge of the frame 25, and the top port of the suction head 26 is connected to the working port of the vacuum pump; the piston rod of the detection cylinder 23 passes through the rotating plate 22 downward, and an electrical performance detection device 27 is fixedly mounted on the extended end, and the detection rod 28 of the electrical performance detection device 27 is arranged downward. The diameter of the suction head 26 is smaller than the horizontal width of the protective cover 5 on the display module 1 . A hose is connected to the top end of the suction head 26 , and the other end of the hose is connected to the working port of the vacuum pump.

[0078] A temporary storage mechanism 29 is also provided on the pad 6 and on the right side of the linear cylinder 11. The temporary storage mechanism 29 includes a support leg fixed on the pad 6, a rework temporary storage table 30 is fixed on the top of the support leg, and a finished product temporary storage table 31 is provided directly above the rework temporary storage table 30.

[0079] A connecting plate is fixedly arranged between the outer edge of the rework temporary storage table 30 and the outer edge of the finished product temporary storage table 31. A turntable is fixedly arranged on the rotating shaft of the rotary cylinder 13, and the cylinder body of the vertical cylinder 14 is fixedly arranged on the top surface of the turntable. The vertical cylinder 14 is coaxially arranged with the rotary cylinder 13.

[0080] The detection device also includes a controller, which is electrically connected to the vacuum pump, the rotary cylinder 13, the vertical cylinder 14, the unloading cylinder 18, the linear cylinder 11, the detection cylinder 23, the sleeve removal cylinder 24, and the flat belt conveyor 7 via a signal line. Workers can control the start or stop of the vacuum pump, the rotary cylinder 13, the linear cylinder 11, the flat belt conveyor 7 and the vacuum pump through the controller, and can also control the extension or retraction of the piston rods of the vertical cylinder 14, the unloading cylinder 18, the detection cylinder 23, and the sleeve removal cylinder 24, which facilitates the workers' operation and has the characteristics of a high degree of automation.

[0081] A method for efficiently detecting the electrical performance of a display module of a high-definition display screen comprises the following steps:

[0082] S1, multiple Figure 1~Figure 2 Pre-installation of the display modules 1 to be tested as shown: the worker takes out a plurality of display modules 1 to be tested, places the mounting plates 4 of each display module 1 on the flat belt 17 of the flat belt conveyor 7, and ensures that the mounting plates 4 of each display module 1 are just within the area surrounded by the two guard plates 10, thereby achieving the pre-installation of the plurality of display modules 1 to be tested, as shown in FIG. Fig.11 As shown, at this time, the mounting plate 4 of the rightmost display module 1 is just facing the stop 16 of the turnover mechanism 8;

[0083] S2. Loading the rightmost display module 1 on the flat belt 17: The worker controls the flat belt conveyor 7 to start, and the flat belt 17 of the flat belt conveyor 7 rotates clockwise, and the flat belt 17 drives each display module 1 thereon to move to the right, and the rightmost display module 1 is separated from the flat belt 17 and enters the stop 16 of the receiving seat 15, as shown in FIG. Fig.12 As shown, the mounting plate 4 of the display module 1 is pressed against the buffer pad 32, thereby realizing the loading of the first display module 1;

[0084] S3, testing the electrical performance of the first display module 1, the specific operation steps are as follows:

[0085] S31, control the linear cylinder 11 of the turnover mechanism 8 to start, the moving part 12 of the linear cylinder 11 moves to the right, the moving part 12 drives the rotary cylinder 13, the vertical cylinder 14 and the material receiving seat 15 to move to the right, and the material receiving seat 15 drives the display module 1 therein to move to the right synchronously. When the moving part 12 moves to the set stroke, the controller controls the linear cylinder 11 to close. At this time, the display module 1 enters the unsleeving station of the unsleeving and detection mechanism 9, as shown in FIG. Fig.13 As shown;

[0086] S32, unhooking process: Control the piston rod of the unhooking cylinder 24 of the unhooking and detecting mechanism 9 to extend downward, the piston rod drives the frame 25 to move downward, the frame 25 drives the suction head 26 to move downward, and the suction head 26 moves toward the protective cover 5 of the display module 1. When the piston rod of the unhooking cylinder 24 is fully extended, the bottom surface of the suction head 26 just contacts the top surface of the protective cover 5, as shown in FIG. Figure 14~Figure 15 As shown; then the vacuum pump is controlled to start, the vacuum pump evacuates the hose and the suction head 26, and under negative pressure, the top wall of the protective sleeve 5 is adsorbed and fixed on the suction head 26; then the piston rod of the sleeve removal cylinder 24 is controlled to retract upward, the piston rod drives the frame 25 and the suction head 26 to move upward, and the suction head 26 drives the protective sleeve 5 to move upward, so that the protective sleeve 5 sleeved on the joint 3 is taken off, as shown in FIG. Fig.16 As shown;

[0087] S33, testing process: control the stepper motor 21 of the unsleeving and testing mechanism 9 to start, the stepper motor 21 drives the rotating plate 22 to rotate, the rotating plate 22 drives the testing cylinder 23 and the unsleeving cylinder 24 to rotate synchronously, when the rotating plate 22 rotates 180°, the controller controls the stepper motor 21 to turn off, at this time, the testing cylinder 23, the electrical performance testing device 27 and the testing rod 28 are just above the joint 3 of the display module 1, as shown in FIG. Fig.17 As shown; then the piston rod of the detection cylinder 23 is controlled to extend downward, the piston rod drives the electrical performance detection device 27 to move downward, the electrical performance detection device 27 drives the detection rod 28 to move downward, and the detection rod 28 moves toward the joint 3. When the piston rod of the detection cylinder 23 is fully extended, the detection rod 28 just contacts the top surface of the joint 3, as shown in FIG. Figure 18-19 As shown, at this time, the electrical performance detection device 27 detects the resistance value of the display module 1;

[0088] Among them, it can be known from steps S2 to S3 that the detection device only needs to control the flat belt conveyor 7 to start, and can convey the multiple display modules 1 to be detected on the flat belt 17 from left to right one by one to the receiving seat 15 of the turnover mechanism 8, and then the turnover mechanism 8 will turn the display module 1 to the unsleeving station of the unsleeving and detection mechanism 9, and then the electrical properties of the display module 1 are detected by the unsleeving and detection mechanism 9. It can be seen that compared with the detection method in the workshop, the detection device does not need to manually take out the display modules 1 in the material basket one by one and place them on the detection table, but realizes automatic conveying of the display modules 1, which not only reduces the work intensity of the workers, but also shortens the detection time of the electrical properties of a single display module 1, thereby greatly improving the detection efficiency of the electrical properties of the display module 1.

[0089] S4, the electrical performance detection device 27 transmits the detected resistance value to the controller. If the detected resistance value is within the design range, the worker determines that the display module 1 is a qualified product 34. The worker transfers the qualified product 34 to the finished product temporary storage station 31 in the following operation method:

[0090] S41, control the piston rod of the detection cylinder 23 to retract upward, and the piston rod drives the detection rod 28 to move away from the qualified product 34; then control the stepper motor 21 to start, the stepper motor 21 drives the rotating plate 22 to rotate, and the rotating plate 22 drives the protective cover 5 adsorbed and fixed on the suction head 26 to rotate. When the protective cover 5 rotates to just above the joint 3 of the qualified product 34, control the piston rod of the sleeve removal cylinder 24 to extend downward, the piston rod drives the suction head 26 to move downward, and the suction head 26 drives the protective cover 5 to move downward, and the protective cover 5 is sleeved on the joint 3 of the qualified product 34 from top to bottom; then control the vacuum pump to close, and the suction head 26 no longer adsorbs the protective cover 5; then control the piston rod of the sleeve removal cylinder 24 to retract upward, and the piston rod drives the suction head 26 to move upward, so that the suction head 26 moves away from the qualified product 34, such as Fig. 20 As shown;

[0091] S42, the rotary cylinder 13 of the control turnover mechanism 8 is started, the rotary cylinder 13 drives the vertical cylinder 14 and the receiving seat 15 to rotate synchronously, and the receiving seat 15 drives the qualified product 34 to rotate synchronously. When the qualified product 34 rotates 180°, the controller controls the rotary cylinder 13 to close. At this time, the qualified product 34 faces the finished product temporary storage table 31, as shown in FIG. Fig.21 As shown;

[0092] S43, the linear cylinder 11 of the control turnover mechanism 8 is started, the moving part 12 of the linear cylinder 11 continues to move to the right, the moving part 12 drives the rotary cylinder 13, the vertical cylinder 14 and the receiving seat 15 to move to the right, and the receiving seat 15 drives the qualified product 34 to move to the right. When the qualified product 34 approaches the finished product temporary storage table 31, as shown in FIG. Fig. 22 As shown, the controller controls the linear cylinder 11 to close;

[0093] S44, control the piston rod of the unloading cylinder 18 on the turnover mechanism 8 to extend to the right, the piston rod drives the unloading plate 19 to move to the right, and the unloading plate 19 pushes the qualified product 34 to the right, so as to push the qualified product 34 to the finished product temporary storage table 31, such as Fig.23 As shown, the qualified products 34 are finally transferred to the finished product temporary storage table 31, so as to facilitate subsequent workers to transport the qualified products 34 to the packaging process;

[0094] If the detected resistance value is not within the design range, the worker determines that the display module 1 is a defective product 35. The worker transfers the defective product 35 to the rework temporary storage station 30 in the following manner:

[0095] S45, control the piston rod of the detection cylinder 23 to retract upward, and the piston rod drives the detection rod 28 to move away from the defective product 35; then control the stepper motor 21 to start, so that the protective cover 5 adsorbed and fixed on the suction head 26 rotates to the top of the joint 3 of the defective product 35; then control the piston rod of the sleeve removal cylinder 24 to extend downward, the piston rod drives the suction head 26 to move downward, and the suction head 26 drives the protective cover 5 to move downward, and the protective cover 5 is sleeved on the joint 3 of the defective product 35 from top to bottom; then control the vacuum pump to close, and the suction head 26 no longer adsorbs the protective cover 5; then control the piston rod of the sleeve removal cylinder 24 to retract upward, so that the suction head 26 moves away from the defective product 35, such as Fig.24 As shown;

[0096] S46, the rotary cylinder 13 of the control turnover mechanism 8 is started, the rotary cylinder 13 drives the vertical cylinder 14 and the receiving seat 15 to rotate synchronously, and the receiving seat 15 drives the unqualified products 35 to rotate synchronously. When the unqualified products 35 rotate 180°, Fig.25 As shown, the controller controls the rotary cylinder 13 to close;

[0097] S47, control the piston rod of the vertical cylinder 14 to retract downward, and the piston rod drives the receiving seat 15 to move downward. When the piston rod of the vertical cylinder 14 is fully retracted, the unqualified product 35 just faces the rework temporary storage table 30. Fig.26 As shown; the linear cylinder 11 controlling the turnover mechanism 8 is started, the moving part 12 of the linear cylinder 11 continues to move to the right, the moving part 12 drives the rotary cylinder 13, the vertical cylinder 14 and the receiving seat 15 to move to the right, and the receiving seat 15 drives the unqualified product 35 to move to the right. When the unqualified product 35 approaches the rework temporary storage table 30, as shown Fig. 27 As shown, the controller controls the linear cylinder 11 to close;

[0098] S48, control the piston rod of the unloading cylinder 18 on the turnover mechanism 8 to extend to the right, the piston rod drives the unloading plate 19 to move to the right, and the unloading plate 19 pushes the unqualified product 35 to the right, so as to push the unqualified product 35 to the rework temporary storage table 30, such as Fig.28 As shown, the defective product 35 is finally transferred to the rework temporary storage station 30 to facilitate subsequent workers to repair the defective product 35, thereby finally realizing the detection of the electrical performance of the first display module 1;

[0099] Among them, it can be seen from step S41 and step S45 that the detection device only needs to control the linkage cooperation of the detection cylinder 23, the stepping motor 21 and the de-sleeving cylinder 24 of the de-sleeving and detection mechanism 9, so as to automatically and quickly re-sleeve the protective cover 5 adsorbed and fixed on the suction head 26 on the joint 3 of the qualified product 34 or the unqualified product 35. It can be seen that compared with the operation method in the workshop, the detection device does not need to manually re-sleeve the protective cover 5 on the joint 3 of the qualified product 34 or the unqualified product 35, thereby greatly shortening the detection time of the electrical performance of a single display module 1 and further improving the detection efficiency of the electrical performance of the display module 1.

[0100] S5. The worker repeats the operations of steps S2 to S4 to continuously test the electrical properties of the multiple display modules 1 on the flat belt conveyor 7.

[0101] Among them, it can be seen from step S4 that after the electrical performance test of the display module 1 is completed, through the linkage cooperation of the rotating cylinder 13, the vertical cylinder 14, the linear cylinder 9 and the unloading cylinder 18 of the turnover mechanism 8, the qualified products 34 can be automatically placed on the finished product temporary storage table 31, or the unqualified products 35 can be placed on the rework temporary storage table, without manual operation, which not only reduces the work intensity of the workers, but also further improves the detection efficiency of the electrical performance of the display module 1.

Claims

1. An efficient detection device for electrical performance of a high-definition display screen display module, characterized in that: It comprises a pad (6), on which a flat belt conveyor (7), a turnover mechanism (8), and a sleeve removal and detection mechanism (9) are arranged in sequence from left to right. Guard plates (10) are fixedly arranged on the front and rear sides of the frame of the flat belt conveyor (7), and the distance between the inner end surfaces of the two guard plates (10) is equal to the longitudinal width of the mounting plate (4) of the display module (1); The turnover mechanism (8) comprises a linear cylinder (11) fixedly mounted on a backing plate (6), and a rotary cylinder (13) fixedly mounted on the top surface of a moving part (12) of the linear cylinder (11); a vertical cylinder (14) is fixedly mounted on the rotating axis of the rotary cylinder (13); a material receiving seat (15) is fixedly mounted on the active end of a piston rod of the vertical cylinder (14); a stopper (16) is provided on the top surface of the material receiving seat (15) and passes through its left end surface to the left; the bottom wall of the stopper (16) is flush with the upper side belt of the flat belt (17) of the flat belt conveyor (7), and the longitudinal width of the stopper (16) is equal to the longitudinal width of the mounting plate (4) of the display module (1); a discharge cylinder (18) is fixedly mounted on the right end portion of the material receiving seat (15); a discharge plate (19) located directly above the stopper (16) is fixedly mounted on the piston rod of the discharge cylinder (18); The sleeve removal and detection mechanism (9) comprises a bracket (20) fixedly mounted on the backing plate (6) and located at the rear side of the linear cylinder (11), a stepper motor (21) fixedly mounted on the top of the bracket (20), an output shaft of the stepper motor (21) passing through the bracket (20) and connected to a rotating plate (22) at the extended end, a detection cylinder (23) and a sleeve removal cylinder (24) fixedly mounted on the top surface of the rotating plate (22), the detection cylinder (23) being located on the left side of the stepper motor (21), and the sleeve removal cylinder (24) being located on the left side of the stepper motor (21). Located on the right side of the stepper motor (21), the piston rod of the sleeve removal cylinder (24) penetrates downwardly through the rotating plate (22), and a frame (25) is fixedly provided on the extended end, a suction head (26) is fixedly provided on the bottom edge of the frame (25), and the top end of the suction head (26) is connected to the working port of the vacuum pump; the piston rod of the detection cylinder (23) penetrates downwardly through the rotating plate (22), and an electrical performance detection device (27) is fixedly provided on the extended end, and the detection rod (28) of the electrical performance detection device (27) is arranged downward.

2. The high-efficiency detection device for electrical performance of a high-definition display screen display module according to claim 1 is characterized in that: A temporary storage mechanism (29) is also provided on the backing plate (6) and located on the right side of the linear cylinder (11). The temporary storage mechanism (29) comprises a support leg fixedly provided on the backing plate (6), a rework temporary storage table (30) is fixedly provided on the top of the support leg, and a finished product temporary storage table (31) is provided directly above the rework temporary storage table (30).

3. The high-efficiency detection device for electrical performance of a high-definition display screen display module according to claim 2 is characterized in that: A connecting plate is fixedly provided between the outer edge of the rework temporary storage platform (30) and the outer edge of the finished product temporary storage platform (31).

4. The high-efficiency detection device for electrical performance of a high-definition display screen display module according to claim 3 is characterized in that: A buffer pad (32) is fixedly arranged in the stopper (16) and on the right side wall thereof, and the depth of the stopper (16) is greater than the thickness of the mounting plate (4) of the display module (1).

5. The high-efficiency detection device for electrical properties of a high-definition display screen display module according to claim 4 is characterized in that: A turntable is fixedly arranged on the rotating shaft of the rotary cylinder (13); a cylinder body of the vertical cylinder (14) is fixedly arranged on the top surface of the turntable; the vertical cylinder (14) and the rotary cylinder (13) are coaxially arranged.

6. The high-efficiency detection device for electrical properties of a high-definition display screen display module according to claim 5 is characterized in that: The diameter of the suction head (26) is smaller than the horizontal width of the protective cover (5) on the display module (1); a hose is connected to the top end of the suction head (26); and the other end of the hose is connected to the working port of the vacuum pump.

7. The high-efficiency detection device for electrical properties of a high-definition display screen display module according to claim 6 is characterized in that: The detection device also includes a controller, which is electrically connected to the vacuum pump, the rotary cylinder (13), the vertical cylinder (14), the discharge cylinder (18), the linear cylinder (11), the detection cylinder (23), the sleeve removal cylinder (24), and the flat belt conveyor (7) via a signal line.

8. A method for efficiently detecting the electrical performance of a high-definition display screen display module, using the device for efficiently detecting the electrical performance of a high-definition display screen display module according to claim 7, characterized in that: It includes the following steps: S1. Pre-installation of multiple display modules (1) to be tested: a worker takes out multiple display modules (1) to be tested, places the mounting plates (4) of each display module (1) on the flat belt (17) of the flat belt conveyor (7), and ensures that the mounting plates (4) of each display module (1) are exactly within the area surrounded by the two guard plates (10), thereby achieving pre-installation of the multiple display modules (1) to be tested. At this time, the mounting plate (4) of the rightmost display module (1) is exactly facing the stop (16) of the turnover mechanism (8); S2, loading the rightmost display module (1) on the flat belt (17): the worker controls the flat belt conveyor (7) to start, and the flat belt (17) of the flat belt conveyor (7) rotates clockwise, and the flat belt (17) drives each display module (1) thereon to move to the right, and the rightmost display module (1) is separated from the flat belt (17) and enters the stopper (16) of the receiving seat (15), and the mounting plate (4) of the display module (1) is pressed against the buffer pad (32), thereby realizing the loading of the first display module (1); S3, testing the electrical performance of the first display module (1), the specific operation steps are as follows: S31, the linear cylinder (11) of the control turnover mechanism (8) is started, the moving part (12) of the linear cylinder (11) moves to the right, the moving part (12) drives the rotary cylinder (13), the vertical cylinder (14) and the material receiving seat (15) to move to the right, and the material receiving seat (15) drives the display module (1) therein to move to the right synchronously. When the moving part (12) moves to the set stroke, the controller controls the linear cylinder (11) to close, and at this time, the display module (1) enters the unsleeving station of the unsleeving and detection mechanism (9); S32, a sleeve removal process: the piston rod of the sleeve removal cylinder (24) of the sleeve removal and detection mechanism (9) is controlled to extend downward, the piston rod drives the frame (25) to move downward, the frame (25) drives the suction head (26) to move downward, and the suction head (26) moves toward the protective sleeve (5) of the display module (1). When the piston rod of the sleeve removal cylinder (24) is fully extended, the bottom surface of the suction head (26) just contacts the top surface of the protective sleeve (5); then the vacuum pump is controlled to start, the vacuum pump evacuates the hose and the suction head (26), and under negative pressure, the top wall of the protective sleeve (5) is adsorbed and fixed on the suction head (26); then the piston rod of the sleeve removal cylinder (24) is controlled to retract upward, the piston rod drives the frame (25) and the suction head (26) to move upward, and the suction head (26) drives the protective sleeve (5) to move upward, so that the protective sleeve (5) sleeved on the joint (3) is removed; S33, testing process: the stepper motor (21) of the sleeve removal and testing mechanism (9) is started, the stepper motor (21) drives the rotating plate (22) to rotate, and the rotating plate (22) drives the testing cylinder (23) and the sleeve removal cylinder (24) to rotate synchronously. When the rotating plate (22) rotates 180°, the controller controls the stepper motor (21) to turn off. At this time, the testing cylinder (23), the electrical performance testing device (27) and the testing rod (28) are just at the joint (3) of the display module (1). ); then, the piston rod of the detection cylinder (23) is controlled to extend downward, the piston rod drives the electrical performance detection device (27) to move downward, the electrical performance detection device (27) drives the detection rod (28) to move downward, and the detection rod (28) moves toward the joint (3). When the piston rod of the detection cylinder (23) is fully extended, the detection rod (28) just contacts the top surface of the joint (3), and at this time, the electrical performance detection device (27) detects the resistance value of the display module (1); S4. The electrical performance detection device (27) transmits the detected resistance value to the controller. If the detected resistance value is within the design range, the worker determines that the display module (1) is a qualified product (34). The worker transfers the qualified product (34) to the finished product temporary storage table (31) in the following operation method: S41, control the piston rod of the detection cylinder (23) to retract upward, and the piston rod drives the detection rod (28) to move away from the qualified product (34); then control the stepper motor (21) to start, the stepper motor (21) drives the rotating plate (22) to rotate, and the rotating plate (22) drives the protective sleeve (5) adsorbed and fixed on the suction head (26) to rotate. When the protective sleeve (5) rotates to the top of the joint (3) of the qualified product (34), control the sleeve removal cylinder (24) to start. The piston rod extends downward, the piston rod drives the suction head (26) to move downward, the suction head (26) drives the protective sleeve (5) to move downward, and the protective sleeve (5) is sleeved on the joint (3) of the qualified product (34) from top to bottom; then the vacuum pump is controlled to be turned off, and the suction head (26) no longer absorbs the protective sleeve (5); then the piston rod of the sleeve removal cylinder (24) is controlled to retract upward, and the piston rod drives the suction head (26) to move upward, so that the suction head (26) moves in a direction away from the qualified product (34); S42, controlling the rotary cylinder (13) of the turnover mechanism (8) to start, the rotary cylinder (13) drives the vertical cylinder (14) and the material receiving seat (15) to rotate synchronously, and the material receiving seat (15) drives the qualified product (34) to rotate synchronously. When the qualified product (34) rotates 180°, the controller controls the rotary cylinder (13) to close, and at this time, the qualified product (34) faces the finished product temporary storage table (31); S43, the linear cylinder (11) of the control turnover mechanism (8) is started, the moving part (12) of the linear cylinder (11) continues to move rightward, the moving part (12) drives the rotary cylinder (13), the vertical cylinder (14) and the material receiving seat (15) to move rightward, the material receiving seat (15) drives the qualified product (34) to move rightward, and when the qualified product (34) approaches the finished product temporary storage table (31), the controller controls the linear cylinder (11) to close; S44, controlling the piston rod of the discharge cylinder (18) on the turnover mechanism (8) to extend rightward, the piston rod drives the discharge plate (19) to move rightward, the discharge plate (19) pushes the qualified product (34) to the right, so as to push the qualified product (34) to the finished product temporary storage table (31), thereby finally realizing the turnover of the qualified product (34) to the finished product temporary storage table (31), so as to facilitate subsequent workers to transport the qualified product (34) to the packaging process; If the detected resistance value is not within the design range, the worker determines that the display module (1) is a defective product (35). The worker transfers the defective product (35) to the rework temporary storage station (30) in the following operation method: S45, control the piston rod of the detection cylinder (23) to retract upward, and the piston rod drives the detection rod (28) to move in a direction away from the defective product (35); then control the stepper motor (21) to start, so that the protective sleeve (5) adsorbed and fixed on the suction head (26) rotates to the top of the joint (3) of the defective product (35); then control the piston rod of the sleeve removal cylinder (24) to extend downward, and the piston rod drives the suction head (26) to move downward, and the suction head (26) drives the protective sleeve (5) to move downward, and the protective sleeve (5) is sleeved on the joint (3) of the defective product (35) from top to bottom; then control the vacuum pump to be turned off, and the suction head (26) no longer adsorbs the protective sleeve (5); then control the piston rod of the sleeve removal cylinder (24) to retract upward, so that the suction head (26) moves in a direction away from the defective product (35); S46, controlling the rotary cylinder (13) of the turnover mechanism (8) to start, the rotary cylinder (13) drives the vertical cylinder (14) and the material receiving seat (15) to rotate synchronously, and the material receiving seat (15) drives the unqualified products (35) to rotate synchronously. When the unqualified products (35) rotate 180 degrees, the controller controls the rotary cylinder (13) to close; S47, controlling the piston rod of the vertical cylinder (14) to retract downward, the piston rod drives the receiving seat (15) to move downward, when the piston rod of the vertical cylinder (14) is fully retracted, the defective product (35) just faces the rework temporary storage table (30); controlling the linear cylinder (11) of the turnover mechanism (8) to start, the moving part (12) of the linear cylinder (11) continues to move rightward, the moving part (12) drives the rotary cylinder (13), the vertical cylinder (14) and the receiving seat (15) to move rightward, the receiving seat (15) drives the defective product (35) to move rightward, when the defective product (35) approaches the rework temporary storage table (30), the controller controls the linear cylinder (11) to close; S48, controlling the piston rod of the discharge cylinder (18) on the turnover mechanism (8) to extend rightward, the piston rod drives the discharge plate (19) to move rightward, the discharge plate (19) pushes the unqualified product (35) to the right, so as to push the unqualified product (35) to the rework temporary storage table (30), thereby finally realizing the turnover of the unqualified product (35) to the rework temporary storage table (30), so as to facilitate subsequent workers to repair the unqualified product (35), thereby finally realizing the detection of the electrical performance of the first display module (1); S5. The worker repeats the operations of steps S2 to S4 to continuously perform electrical performance tests on the multiple display modules (1) on the flat belt conveyor (7).

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