Multifunctional detection platform of full-automatic backlight assembly machine

Abstract

The utility model discloses a multifunctional detection platform of a full-automatic backlight assembly machine, which comprises an operation table, a turnover opening is arranged on the upper surface of the operation table, a dumping plate is rotatably mounted in the turnover opening, so that the dumping plate can turn over to close the turnover opening, and a linear module is fixedly mounted on the upper surface of the operation table. A connecting plate is fixedly installed at one end of a movable block of the linear module, a plurality of sets of optical sensors are fixedly installed in the connecting plate, and a jacking and clamping mechanism is fixedly installed at one end in the operation table, so that the jacking and clamping mechanism can press and fix the LED backlight module between the dumping plate and the jacking and clamping mechanism. Through the design of the top clamping mechanism, the automatic discharging and storing functions are achieved after the LED backlight module is detected, then the workload of operators is reduced, manual intervention is not needed in the automatic storage mode, and the working efficiency of the whole detection process is improved.

Description

Technical Field

[0001] This utility model relates to the field of backlight module testing technology, specifically a multi-functional testing platform for a fully automatic backlight assembly machine. Background Technology

[0002] LED backlight modules are light source units used in liquid crystal displays (LCDs) or other display devices. Their main function is to provide uniform backlighting for the display panel. Since LCDs themselves do not have self-emissive properties, they require an external light source to illuminate the displayed content, and the LED backlight module is the key component of this light source.

[0003] For example, the national authorized patent announcement number CN212721994U discloses a testing platform for backlight modules, belonging to the field of backlight module testing technology. This testing platform includes a base, a housing, a lifting assembly, studs, clamps, a slide, an imaging detection device, a transparent film, a vertical rod, a mounting frame, and conductive contacts. The base has an internal cavity. A portion of the lifting assembly passes through the top wall of the base and is fixed to a stud. A clamp is screwed to the top of the stud. The top of the clamp has a placement groove, and the bottom of the placement groove has an installation groove. Conductive contacts are fixed within the installation groove. A vacuum chamber is located below the clamp. Multiple second through holes are formed on the clamp around the installation groove. The mounting frame is detachably fixed to the bottom of the vertical rod and contains a transparent film. The slide is fixed to the inner top wall of the housing, and the imaging detection device is fixed to the sliding end of the slide. This backlight module testing platform has a low false detection rate and wide applicability.

[0004] However, the aforementioned backlight module testing platform does not have the function of automatically unloading and storing LED backlight modules after testing. This requires manual removal and storage of the backlight modules after each test, which not only increases the workload of operators but also lengthens the time of each testing cycle, directly affecting the overall production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a multi-functional testing platform for a fully automatic backlight assembly machine, in order to solve the problem mentioned in the background art that there is no automatic unloading and storage after the LED backlight module testing is completed.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-functional testing platform for a fully automatic backlight assembly machine includes: an operating table, the upper surface of which has a flip-up opening, and a tilting plate rotatably installed inside the flip-up opening, so that the tilting plate can flip to close the flip-up opening; a linear module is fixedly installed on the upper surface of the operating table, and a connecting plate is fixedly installed at one end of the moving block of the linear module; multiple sets of light sensors are fixedly installed inside the connecting plate; and a top clamping mechanism is fixedly installed at one end inside the operating table, so that the top clamping mechanism can press the LED backlight module between the tilting plate and the top clamping mechanism.

[0008] Preferably, the linear module can drive multiple sets of light sensors on the connecting plate to move laterally to detect the brightness of the LED backlight module. The signal transmitting end of the light sensor is connected to the signal receiving end of the controller, and the control output end of the controller is electrically connected to the electric control end of the electric push rod.

[0009] The optical sensor and controller are model APDS-9301 and Arduino UNO, respectively.

[0010] Preferably, an electric push rod is rotatably mounted on one end of the lower surface of the operating table. The piston rod of the electric push rod rotates to be mounted on the lower surface of the tilting plate, so that the tilting plate can be pulled by the electric push rod to unfold the flipping opening.

[0011] Preferably, the tilting plate that is pulled and flipped can cause the LED backlight module to be released from the pressure of the top clamping mechanism, and allow the LED backlight module to slide into the storage box through the tilting plate, the storage box being placed at one end of the lower surface of the operating table.

[0012] Preferably, the top clamping mechanism includes an L-shaped plate, which is fixedly installed at one end inside the flip-out opening. A connecting cylinder is fixedly installed on the upper surface of the L-shaped plate, a connecting column is slidably installed inside the connecting cylinder, and a trapezoidal frame is fixedly installed on the lower surface of the connecting column.

[0013] Preferably, a spring is provided inside the connecting cylinder, with the two ends of the spring respectively touching the upper surface inside the connecting cylinder and the upper surface of the connecting column, so that the spring applies a downward elastic force to the connecting column and the trapezoidal frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Through the design of a linear module, light sensor, electric push rod, tilting plate, and top clamping mechanism, the LED backlight module is tested by placing it on the upper surface of the tilting plate and pushing it into the lower surface of the top clamping mechanism. During this process, the top clamping mechanism is pushed open by the LED backlight module via a sloping sliding surface, thus clamping the lower surface LED backlight module between the tilting plate and the top clamping mechanism. Then, the linear module can be activated to move multiple sets of light sensors on the connecting plate laterally to detect the brightness of the clamped LED backlight module, achieving comprehensive brightness detection. This helps to identify potential localized brightness anomalies in the module. Once the linear module has completed its travel and the light sensors have completed their brightness detection of the LED backlight module... Afterwards, the light sensor sends a signal to the controller, which then controls the electric push rod to pull the tilting plate open. The tilting plate, which is pulled and flipped, allows the LED backlight module to detach from the clamping mechanism and slide into the storage box for automatic storage. This automated storage method requires no manual intervention, improving the efficiency of the entire testing process and reducing errors that may be caused by manual operation. If the brightness test fails, the controller will mark the defective part on the display, helping staff to quickly locate the problem and facilitate targeted analysis and processing of the defective LED backlight module, saving time in troubleshooting. Then, staff can pull the LED backlight module out from between the tilting plate and the clamping mechanism.

[0016] 2. Through the design of the connecting cylinder, spring, connecting column, and trapezoidal frame, when testing the LED backlight module, the LED backlight module is placed on the upper surface of the tilting plate and pushed into the lower surface of the trapezoidal frame. During the process of pushing the LED backlight module into the lower surface of the trapezoidal frame, the trapezoidal frame is pushed open by the LED backlight module through the inclined sliding surface, so that the plane of the rear half of the trapezoidal frame presses against the upper surface of the LED backlight module. As the trapezoidal frame is pushed open, it causes the connecting column to slide into the connecting cylinder and press against one end of the spring inside. This allows the spring to apply a downward spring force to the connecting column, which in turn causes the connecting column to push the trapezoidal frame against the upper surface of the LED backlight module. This achieves the clamping of the LED backlight module between the trapezoidal frame and the tilting plate. During the testing process, the stable clamping ensures that the LED backlight module will not shift or shake, thus ensuring the accuracy of the test results. When performing optical performance testing, a stable position helps to accurately measure parameters such as brightness and uniformity. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of the multi-functional testing platform of the fully automatic backlight assembly machine of this utility model;

[0018] Figure 2 This is a schematic diagram of the tilting plate of this utility model being pulled and flipped.

[0019] Figure 3 This is a schematic diagram of the top clamping mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the flip-out opening and storage box of this utility model.

[0021] In the diagram: 1. Control panel; 101. Linear module; 102. Connecting plate; 103. Light sensor; 104. Tilting plate; 105. Electric push rod; 106. Storage box; 107. Flip opening; 2. Top clamping mechanism; 201. Connecting cylinder; 202. Spring; 203. Connecting column; 204. Trapezoidal frame; 205. L-shaped plate. Detailed Implementation

[0022] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-2 As shown, a multi-functional testing platform for a fully automatic backlight assembly machine includes: an operating table 1, with a flip-out opening 107 on the upper surface of the operating table 1, and a tilting plate 104 rotatably installed inside the flip-out opening 107, so that the tilting plate 104 can be flipped to close the flip-out opening 107; a linear module 101 is fixedly installed on the upper surface of the operating table 1, and a connecting plate 102 is fixedly installed at one end of the moving block of the linear module 101; multiple sets of light sensors 103 are fixedly installed inside the connecting plate 102; and a top clamping mechanism 2 is fixedly installed at one end inside the operating table 1, so that the top clamping mechanism 2 can press the LED backlight module between the tilting plate 104 and the top clamping mechanism 2.

[0024] The linear module 101 enables multiple sets of light sensors 103 on the connecting plate 102 to move laterally to detect the brightness of the LED backlight module. The signal transmitting end of the light sensor 103 is connected to the signal receiving end of the controller, and the control output end of the controller is electrically connected to the electrical control end of the electric push rod 105.

[0025] The optical sensor 103 and the controller are model APDS-9301 and Arduino UNO, respectively.

[0026] An electric push rod 105 is rotatably mounted on one end of the lower surface of the operating table 1. The piston rod of the electric push rod 105 rotates to be mounted on the lower surface of the tilting plate 104, so that the tilting plate 104 can be pulled by the electric push rod 105 to unfold the flipping port 107.

[0027] The tilting plate 104, which is pulled and flipped, can cause the LED backlight module to break free from the pressure of the top clamping mechanism 2, and allow the LED backlight module to slide into the storage box 106 through the tilting plate 104. The storage box 106 is placed at one end of the lower surface of the operating table 1.

[0028] Through the design of the linear module 101, light sensor 103, electric push rod 105, tilting plate 104, and top clamping mechanism 2, when testing the LED backlight module, the LED backlight module is placed on the upper surface of the tilting plate 104 and pushed into the lower surface of the top clamping mechanism 2. During the process of pushing the LED backlight module into the lower surface of the top clamping mechanism 2, the top clamping mechanism 2 is pushed open by the LED backlight module through the inclined sliding surface, thereby clamping the LED backlight module on the lower surface between the tilting plate 104 and the top clamping mechanism 2. Then, the linear module 101 can be activated to drive the multiple sets of light sensors 103 on the connecting plate 102 to move laterally to detect the brightness of the clamped LED backlight module, realizing a comprehensive brightness detection operation, which helps to discover possible local brightness abnormalities in the module. When the linear module 101 has completed its travel, and the light sensors 103 are activated to detect the LED backlight module... Once the brightness detection is passed, the light sensor 103 sends a signal to the controller, which then controls the electric push rod 105 to pull the tilting plate 104 to open the flipping opening 107. The tilting plate 104, which is pulled and flipped, can cause the LED backlight module to be released from the pressure of the top clamping mechanism 2, and at the same time, the LED backlight module can slide into the storage box 106 for automatic storage through the tilting plate 104. This automated storage method does not require manual intervention, which improves the efficiency of the entire testing process and reduces the errors that may be caused by manual operation. If the brightness detection fails, the controller will mark the unqualified part on the display, which helps the staff to quickly locate the problem and facilitates the subsequent targeted analysis and processing of the unqualified LED backlight module, saving the time of troubleshooting. Then, the staff can pull the LED backlight module out from between the tilting plate 104 and the top clamping mechanism 2.

[0029] like Figures 3-4 As shown, the top clamping mechanism 2 includes an L-shaped plate 205, which is fixedly installed at one end inside the flip opening 107. A connecting cylinder 201 is fixedly installed on the upper surface of the L-shaped plate 205, and a connecting column 203 is slidably installed inside the connecting cylinder 201. A trapezoidal frame 204 is fixedly installed on the lower surface of the connecting column 203.

[0030] A spring 202 is installed inside the connecting cylinder 201. The two ends of the spring 202 are respectively in contact with the upper surface of the inner side of the connecting cylinder 201 and the upper surface of the connecting column 203, so that the spring 202 applies a downward elastic force to the connecting column 203 and the trapezoidal frame 204.

[0031] Through the design of the connecting cylinder 201, spring 202, connecting post 203, and trapezoidal frame 204, when testing the LED backlight module, the LED backlight module can be placed on the upper surface of the tilting plate 104 and pushed into the lower surface of the trapezoidal frame 204. During the process of pushing the LED backlight module into the lower surface of the trapezoidal frame 204, the trapezoidal frame 204 is pushed open by the LED backlight module through its inclined sliding surface, causing the rear half of the trapezoidal frame 204 to press against the upper surface of the LED backlight module. Furthermore, the process of the trapezoidal frame 204 being pushed open causes the connecting post 203 to slide into the connecting cylinder 201. The spring 202 inside the LED backlight module is pressed against one end, which in turn causes the spring 202 to exert a downward spring force on the connecting column 203. This causes the connecting column 203 to drive the trapezoidal frame 204 to press against the upper surface of the LED backlight module through the spring force. This achieves the clamping of the LED backlight module between the trapezoidal frame 204 and the tilting plate 104. During the testing process, the stable clamping ensures that the LED backlight module will not be displaced or shaken, thereby ensuring the accuracy of the test results. When performing optical performance testing, a stable position helps to accurately measure parameters such as brightness and uniformity.

[0032] Based on the above technical solution, the working steps of this solution are summarized as follows: When testing the LED backlight module, the LED backlight module can be placed on the upper surface of the tilting plate 104 and pushed into the lower surface of the trapezoidal frame 204. During the process of pushing the LED backlight module into the lower surface of the trapezoidal frame 204, the trapezoidal frame 204 will be pushed open by the LED backlight module through the inclined sliding surface, so that the plane of the rear half of the trapezoidal frame 204 presses against the upper surface of the LED backlight module. During the process of the trapezoidal frame 204 being pushed open, it will drive the connecting column 203 to slide into the connecting cylinder 201 and press against one end of the spring 202 inside. This will allow the spring 202 to apply a downward spring force to the connecting column 203, so that the connecting column 203 can drive the trapezoidal frame 204 to press against the upper surface of the LED backlight module through the spring force. This achieves the clamping of the LED backlight module between the trapezoidal frame 204 and the tilting plate 104. Then, the linear module 101 can be activated to drive multiple sets of light sensors 103 on the connecting plate 102 to move laterally to detect the brightness of the clamped LED backlight module. When the linear module 101 has completed its travel and the light sensors 103 have passed the brightness detection of the LED backlight module, the light sensors 103 can send a signal to the controller. The controller will then control the electric push rod 105 to pull the tilting plate 104 to open the flipping opening 107. The tilting plate 104, which is pulled and flipped, can cause the LED backlight module to be released from the pressure of the trapezoidal frame 204. At the same time, the LED backlight module can slide into the storage box 106 through the tilting plate 104 for automatic storage. If the brightness detection fails, the controller will mark the unqualified part on the display, which helps the staff to quickly locate the problem and facilitates the subsequent targeted analysis and processing of the unqualified LED backlight module.

[0033] In summary: The LED backlight module has an automatic unloading and storage function after testing, which reduces the workload of operators. Moreover, this automated storage method does not require manual intervention, thus improving the efficiency of the entire testing process.

[0034] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional testing platform for a fully automated backlight assembly machine, characterized in that, include: An operating table (1) is provided with a flip-out opening (107) on its upper surface. A tilting plate (104) is rotatably installed inside the flip-out opening (107) so that the tilting plate (104) can be flipped to close the flip-out opening (107). A linear module (101) is fixedly installed on the upper surface of the operating table (1). A connecting plate (102) is fixedly installed at one end of the moving block of the linear module (101). Multiple sets of light sensors (103) are fixedly installed inside the connecting plate (102). A top clamping mechanism (2) is fixedly installed at one end inside the operating table (1) so that the top clamping mechanism (2) can press the LED backlight module between the tilting plate (104) and the top clamping mechanism (2).

2. The multi-functional testing platform for a fully automatic backlight assembly machine according to claim 1, characterized in that: The linear module (101) can drive multiple sets of optical sensors (103) on the connecting plate (102) to move laterally to detect the brightness of the LED backlight module. The signal transmitting end of the optical sensor (103) is connected to the signal receiving end of the controller, and the control output end of the controller is electrically connected to the electric control end of the electric push rod (105).

3. The multi-functional testing platform for a fully automatic backlight assembly machine according to claim 1, characterized in that: An electric push rod (105) is rotatably mounted on one end of the lower surface of the operating table (1). The piston rod of the electric push rod (105) rotates to be mounted on the lower surface of the tilting plate (104), so that the tilting plate (104) can be pulled by the electric push rod (105) to unfold the flipping opening (107).

4. The multi-functional testing platform of a fully automatic backlight assembly machine according to claim 3, characterized in that: The tilting plate (104) that is pulled and flipped can cause the LED backlight module to be released from the pressure of the top clamping mechanism (2), and allow the LED backlight module to slide into the storage box (106) through the tilting plate (104), which is placed at one end of the lower surface of the operating table (1).

5. The multi-functional testing platform for a fully automatic backlight assembly machine according to claim 1, characterized in that: The top clamping mechanism (2) includes an L-shaped plate (205), which is fixedly installed at one end inside the flip opening (107). A connecting cylinder (201) is fixedly installed on the upper surface of the L-shaped plate (205), and a connecting column (203) is slidably installed inside the connecting cylinder (201). A trapezoidal frame (204) is fixedly installed on the lower surface of the connecting column (203).

6. The multi-functional testing platform of a fully automatic backlight assembly machine according to claim 5, characterized in that: A spring (202) is provided inside the connecting cylinder (201). The two ends of the spring (202) respectively abut against the upper surface of the inner surface of the connecting cylinder (201) and the upper surface of the connecting column (203), so that the spring (202) applies a downward elastic force to the connecting column (203) and the trapezoidal frame (204).

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