Auxiliary device for testing optical effect of COB lamp panel product

Abstract

The invention discloses an auxiliary device for testing the optical effect of a COB lamp panel product, and belongs to the technical field of LED backlight tests.The auxiliary device comprises a working platform, a first clamping mechanism is installed on one side of the upper surface of the working platform, a lifting mechanism is installed on the other side of the upper surface of the working platform, and a power supply platform is embedded in the center of the working platform; a first clamping mechanism is installed on the lifting mechanism, a second clamping mechanism is installed on the lifting mechanism, the first clamping mechanism and the second clamping mechanism each comprise a rotating frame, each rotating frame is provided with two symmetrical C-shaped groove rods, the lifting mechanism comprises a positioning square barrel and a positioning sliding block, and a positioning screw is rotationally connected to the inner axis of the positioning square barrel. The positioning square cylinder penetrates through the positioning sliding block and is in sliding connection with the positioning sliding block, and the positioning screw penetrates through the positioning sliding block and is in threaded connection with the positioning sliding block, so that a universal optical inspection platform is formed, optical inspection of multiple products is subjected to universal production inspection, occupied space is reduced, and spacing can be accurately adjusted and can be kept at the same height.

Description

Technical Field

[0001] The present invention relates to the technical field of LED backlight testing, in particular to an auxiliary device for testing the optical effect of a COB light panel product. Background Art

[0002] With the development of science and technology, the production technology and production capabilities of TV manufacturers have gradually improved, which has also accelerated the rapid entry of COB products into the market. Compared with traditional backlight products, COB products use silicone dispensing solutions instead of acrylic material molded plastic lens solutions like traditional products. The consistency is relatively poor, and due to the diversity of TV products, TVs of different thicknesses and sizes can be designed using a variety of solutions.

[0003] The application document with publication number CN206790647U discloses a screen brightness uniformity detection device, including a host computer with a built-in AOI program, a shooting device for shooting the display screen of the electronic device, and a remote control transmitting device for remotely controlling the electronic device; the host computer is connected to the shooting device, and the host computer is also connected to the remote control transmitting device.

[0004] According to the above patents and existing technologies, the dispensing solutions for each COB product are quite different, and there are many types of dispensing parameters, which are difficult to classify and unify. As a result, production employees need to use multiple lighting platforms to inspect the optical effects when inspecting the effects. This is not uniform, wastes space and inspection tooling, and increases production costs. At the same time, the current market has a fast product replacement speed, and there are many design schemes for TV products. In the whole machine, the COB chip arrangement and the OD value of the whole machine tend to be large in pitch, with a small number of chips and a thin and light OD value design. Under the requirements of different products in low, medium and high-end machines, the thickness of the whole machine has different requirements, resulting in manufacturers not being able to use some inspection tooling equipment universally when making different products, increasing testing and monitoring costs. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems and shortcomings and provide an auxiliary device for testing the optical effects of COB light board products, thereby improving overall work efficiency.

[0006] The present invention solves at least one of the following technical problems:

[0007] (1) Due to the large differences in the manufacturing solutions for various COB light board products, production staff need to use multiple lighting platforms to test the optical effects when testing the effects. This is not uniform, wastes space and inspection tooling, and increases production costs.

[0008] (2) As various COB light board products are updated with a large OD value of the whole machine, a small number of chips and a thin and light OD value design, the replacement speed is fast, there are many design schemes for TV products, and the thickness of the whole machine has different requirements. As a result, some inspection tooling equipment cannot be used universally when manufacturers produce different products, which increases testing and monitoring costs.

[0009] The purpose of the present invention can be achieved through the following technical solutions: an auxiliary device for testing the optical effects of COB light board products, comprising a working platform, a first clamping mechanism is installed on one side of the upper surface of the working platform, a lifting mechanism is installed on the other side of the upper surface of the working platform, a power supply platform is embedded in the center of the working platform, a second clamping mechanism is installed on the lifting mechanism, the first clamping mechanism and the second clamping mechanism both include a rotating frame, two mutually symmetrical C-shaped groove rods are provided on the rotating frame, the lifting mechanism includes a positioning square tube and a positioning slider, a positioning screw is rotatably connected to the inner axis of the positioning square tube, the positioning square tube passes through the positioning slider and is slidably connected to it, and the positioning screw passes through the positioning slider and is threadedly connected to it.

[0010] Preferably, the power supply platform is rotatably connected to the working platform, a power supply board is embedded in the middle of the power supply platform, and a plurality of sub-control sockets are electrically connected to the power supply board.

[0011] Preferably, two positioning square cylinders are provided, and the lower ends of the two positioning square cylinders are commonly mounted with a first transmission box.

[0012] Preferably, the inner sides of both ends of the first transmission box are rotatably connected with a transmission shaft, the transmission shaft is coaxial with the positioning screw, the transmission shaft passes through the first transmission box and is fixedly connected to the corresponding positioning screw, a transmission worm gear is fixedly sleeved on the outer periphery of the middle part of the transmission shaft, and a transmission worm is commonly provided on one side of the transmission worm gear, and both sides of the transmission worm gear are respectively engaged with the corresponding transmission worm gear for transmission, and the transmission worm gear is rotatably connected to the first transmission box.

[0013] Preferably, the end of the transmission worm passes through the side wall of the first transmission box, the end of the transmission worm is installed with a lifting knob, and a support slide is installed on the side of the positioning square tube away from the second clamping mechanism, and the support slide passes through the positioning slider and is slidably connected with it.

[0014] Preferably, a rotating support shaft is passed through the middle of the rotating frame and is rotatably connected thereto, a supporting positioning frame is fixedly connected to one side of the middle of the rotating support shaft, a groove is provided in the middle of the rotating frame for cooperating with the supporting positioning frame for rotation, and a positioning bolt is threadedly passed through one side of the end of the rotating frame.

[0015] Preferably, one end of the support and positioning frame is connected to the second transmission box, and the other end of the support and positioning frame is installed with a support block. A bidirectional screw is provided between the second transmission box and the support block, and the bidirectional screw is rotatably connected to the second transmission box and the support block respectively.

[0016] Preferably, a positioning worm gear is rotatably connected in the second transmission box, one end of the rotating shaft of the positioning worm gear is fixedly connected to the bidirectional screw, a positioning worm is provided in the second transmission box and on one side of the positioning worm gear, the positioning worm is meshed with the positioning worm gear for transmission, the positioning worm is rotatably connected to the second transmission box and one end passes through the second transmission box, and a clamping knob is installed on the end through which the positioning worm passes.

[0017] Preferably, transmission sliders are threadedly connected on both sides of the bidirectional screw, and both sides of the transmission slider pass through the side walls of the support positioning frame, and the side walls of the support positioning frame are provided with through slide grooves that cooperate with the sliding connection of the transmission slider, and the lower end of the C-shaped slot rod is fixedly connected to the positioning slide, the positioning slide is slidingly connected to the support positioning frame, and the positioning slide is fixedly connected to the transmission slider accordingly.

[0018] Preferably, a C-shaped clamping pad is installed inside the C-shaped slot rod, and a support pad is fixedly connected to the upper end of the C-shaped slot rod near the power supply platform.

[0019] Beneficial effects of the present invention:

[0020] (1) During operation, the distance between the optical inspection diaphragm and the COB light board product to be tested is accurately adjusted through the threaded connection, so that the distance accurately maintains the designed OD value, and then the brightness and other optical performance values ​​of each location are observed and detected with instruments. Through this device, a universal optical inspection platform is formed, and the optical inspection of multiple products is universalized for production inspection, which reduces space occupation and avoids one solution for one product. It can adapt to a variety of products and diaphragms, accurately adjust the distance and keep it at the same height, adapt to different OD values, and improve the consistency of product inspection;

[0021] (2) During operation, the worm gear transmission structure composed of the transmission worm and the transmission worm is accurately adjusted so that the positioning slider can accurately move to the required height, and the self-locking property of the worm gear transmission structure is used to maintain accurate positioning. The rotating power supply platform can adapt to the position of the power supply line of different COB light board products, and can adapt to COB product light boards and optical inspection diaphragms of different sizes. The spacing between the two C-shaped clamping pads can be accurately adjusted and stably maintained by the accurate rotation and self-locking property of the worm gear transmission structure composed of the positioning worm and the positioning worm wheel, thereby stably and accurately adjusting the spacing, clamping the COB product light board and the optical inspection diaphragm, adapting to different power supply schemes through the sub-control socket, and protecting the COB light board product and the optical inspection diaphragm by wrapping the C-shaped clamping pad to avoid damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0023] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 A side view of the overall structure of the present invention when it is working;

[0025] Figure 3 A side view of the internal structure of the first transmission box of the present invention;

[0026] Figure 4 Schematic diagram of the overall structure of the first clamping mechanism of the present invention;

[0027] In the figure: 101, working platform; 102, first clamping mechanism; 103, lifting mechanism; 104, second clamping mechanism; 201, power supply platform; 202, power supply board; 203, sub-control socket; 301, first transmission box; 302, positioning square tube; 303, positioning screw; 304, positioning slider; 305, supporting slide; 306, transmission worm gear; 307, transmission worm; 308, transmission shaft; 309, lifting knob; 401, supporting positioning frame; 402, second transmission box; 403, support block; 404, two-way screw; 405, transmission slider; 406, positioning slide; 407, C-shaped slot rod; 408, C-shaped clamping pad; 409, supporting pad block; 410, rotating frame; 411, rotating support shaft; 412, positioning bolt; 413, clamping knob. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0029] See also Figure 1-4As shown: An auxiliary device for testing the optical effect of COB light board products, including a working platform 101, a first clamping mechanism 102 is installed on one side of the upper surface of the working platform 101, a lifting mechanism 103 is installed on the other side of the upper surface of the working platform 101, a power supply platform 201 is embedded in the center of the working platform 101, a second clamping mechanism 104 is installed on the lifting mechanism 103, the first clamping mechanism 102 and the second clamping mechanism 104 both include a rotating frame 410, the rotating frame 410 is provided with two mutually symmetrical C-shaped groove rods 407, the lifting mechanism 103 includes a positioning square cylinder 302 and a positioning slider 304, the positioning square cylinder 302 and the positioning slider 304. 02 is provided with two, and the lower ends of the two positioning square cylinders 302 are jointly installed with the first transmission box 301, the inner axis of the positioning square cylinder 302 is rotatably connected with a positioning screw 303, the positioning square cylinder 302 passes through the positioning slider 304 and is slidably connected thereto, the positioning screw 303 passes through the positioning slider 304 and is threadedly connected thereto, the middle of the rotating frame 410 is penetrated and rotatably connected with a rotating support shaft 411, one side of the middle of the rotating support shaft 411 is fixedly connected to the supporting positioning frame 401, the middle of the rotating frame 410 is provided with a groove for cooperating with the supporting positioning frame 401 to rotate, and one side of the end of the rotating frame 410 is threadedly penetrated with a positioning bolt 412;

[0030] When this embodiment is working, the first clamping mechanism 102 is used to clamp various COB light board products to be tested, the second clamping mechanism 104 is used to clamp the optical inspection film, and the COB light board products to be tested are powered by the power supply platform 201. After they are stably clamped, the first clamping mechanism 102 is first flipped to a horizontal position, and then the second clamping mechanism 104 is flipped to a horizontal position, so that the first clamping mechanism 102 and the COB light board product to be tested are located directly below the second clamping mechanism 104 and the optical inspection film, and then the positioning bolt 412 is used to position them so that the first clamping mechanism 102 and the second clamping mechanism 104 remain stable. Level, then rotate the positioning screw 303, adjust the position of the positioning slider 304, and accurately adjust the distance between the optical inspection diaphragm and the COB light board product to be tested through the threaded connection, so that the distance accurately maintains the designed OD value, and then observe and use instruments to detect the brightness and other optical performance values ​​​​at various places. A universal optical inspection platform is formed through this device, and the optical inspection of multiple products is universalized for production inspection, which reduces space occupancy and avoids one solution for one product. It can adapt to a variety of products and diaphragms, accurately adjust the distance and keep it at the same height, adapt to different OD values, and improve the consistency of product inspection.

[0031] The inner sides of both ends of the first transmission box 301 are rotatably connected with a transmission shaft 308, which is coaxial with the positioning screw 303. The transmission shaft 308 passes through the first transmission box 301 and is fixedly connected to the positioning screw 303. A transmission worm gear 306 is fixedly sleeved on the outer periphery of the middle part of the transmission shaft 308. A transmission worm 307 is commonly provided on one side of the transmission worm gear 306. Both sides of the transmission worm 307 are respectively engaged with the corresponding transmission worm gear 306 for transmission. The transmission worm 307 is rotatably connected to the first transmission box 301. The end of the transmission worm 307 passes through the side wall of the first transmission box 301. The end of the transmission worm 307 is installed with a lifting knob 309. A supporting slide 305 is installed on the side of the positioning square cylinder 302 away from the second clamping mechanism 104. The supporting slide 305 passes through the positioning slider 304 and is slidably connected thereto;

[0032] When this embodiment is working, the lifting knob 309 is rotated to synchronously drive the two transmission worm wheels 306 to rotate through the transmission worm 307, and then drive the transmission shaft 308 and the positioning screw 303 to rotate synchronously, so that the two positioning sliders 304 are lifted and moved synchronously, and the worm gear transmission structure of the transmission worm wheel 306 and the transmission worm 307 is accurately adjusted so that the positioning slider 304 can accurately move to the required height, and the self-locking property of the worm gear transmission structure is used to maintain accurate positioning.

[0033] The power supply platform 201 is rotatably connected to the work platform 101. A power supply board 202 is embedded in the middle of the power supply platform 201. The power supply board 202 is electrically connected to a number of sub-control sockets 203. A C-shaped clamping pad 408 is installed inside the C-shaped slot rod 407. A support pad 409 is fixedly connected to the upper end of the C-shaped slot rod 407 near the power supply platform 201.

[0034] When this embodiment is working, the power supply platform 201 is rotated to adapt to the position of the power supply line of different COB light board products, the sub-control socket 203 is used to adapt to different power supply schemes, and the C-shaped clamping pad 408 is used to wrap and protect the COB light board product and the optical inspection diaphragm to avoid damage.

[0035] One end of the support and positioning frame 401 is connected to the second transmission box 402, and the other end of the support and positioning frame 401 is installed with a support block 403. A bidirectional screw 404 is provided between the second transmission box 402 and the support block 403. The bidirectional screw 404 is rotatably connected to the second transmission box 402 and the support block 403 respectively. A positioning worm gear is rotatably connected in the second transmission box 402, and one end of the rotating shaft of the positioning worm gear is fixedly connected to the bidirectional screw 404. A positioning worm is provided in the second transmission box 402 and on one side of the positioning worm gear. The positioning worm is meshed with the positioning worm gear for transmission, and the positioning worm is connected to the second transmission box 402. The moving box 402 is rotatably connected and one end passes through the second transmission box 402. A clamping knob 413 is installed on the end through which the positioning worm passes. Transmission sliders 405 are threadedly sleeved on both sides of the bidirectional screw 404. Both sides of the transmission slider 405 pass through the side walls of the support and positioning frame 401, and the side walls of the support and positioning frame 401 are provided with through slide grooves that are slidably connected to the transmission slider 405. The lower end of the C-shaped slot rod 407 is fixedly connected to the positioning slider 406. The positioning slider 406 is slidably connected to the support and positioning frame 401, and the positioning slider 406 is correspondingly fixedly connected to the transmission slider 405.

[0036] When this embodiment is working, the transmission slider 405 is moved synchronously by the bidirectional screw 404, and is transmitted through the positioning slide 406 and the C-shaped slot rod 407, so as to adapt to COB product light boards and optical inspection diaphragms of different sizes. The accurate rotation and self-locking property of the worm gear transmission structure composed of the positioning worm and the positioning worm wheel can accurately adjust the distance between the two C-shaped clamping pads 408 and maintain it stably, so as to stably and accurately adjust the distance and clamp the COB product light board and optical inspection diaphragm.

[0037] In summary, the distance between the optical inspection diaphragm and the COB light board product to be tested is accurately adjusted through threaded connection, so that the distance accurately maintains the designed OD value. Then, the brightness and other optical performance values ​​at various locations are observed and detected with instruments. Through this device, a universal optical inspection platform is formed, and the optical inspection of multiple products is universalized for production inspection, which reduces space occupation and avoids one solution for each product. It can adapt to a variety of products and diaphragms, accurately adjust the distance and keep it at the same height, adapt to different OD values, and improve the consistency of product inspection.

[0038] Through the worm gear transmission structure of the transmission worm wheel 306 and the transmission worm 307, accurate adjustment is performed so that the positioning slider 304 can accurately move to the required height, and the self-locking property of the worm gear transmission structure is used to maintain accurate positioning. The rotating power supply platform 201 can adapt to the position of the power supply line of different COB light board products, and adapt to COB product light boards and optical inspection diaphragms of different sizes. Through the accurate rotation and self-locking property of the worm gear transmission structure composed of the positioning worm and the positioning worm wheel, the spacing between the two C-shaped clamping pads 408 can be accurately adjusted and stably maintained, thereby stably and accurately adjusting the spacing, clamping the COB product light board and the optical inspection diaphragm, adapting to different power supply schemes through the sub-control socket 203, and wrapping and protecting the COB light board product and the optical inspection diaphragm with the C-shaped clamping pad 408 to avoid damage.

[0039] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. An auxiliary device for testing the optical effect of COB light board products, characterized in that: The invention comprises a working platform (101), wherein a first clamping mechanism (102) is installed on one side of the upper surface of the working platform (101), and a lifting mechanism (103) is installed on the other side of the upper surface of the working platform (101). A power supply platform (201) is embedded in the center of the working platform (101), and a second clamping mechanism (104) is installed on the lifting mechanism (103). The first clamping mechanism (102) and the second clamping mechanism (104) both comprise a rotating frame (410), and the rotating frame (410) is provided with two mutually symmetrical C-shaped groove rods (407). The lifting mechanism (103) comprises a positioning square tube (302) and a positioning slider (304). A positioning screw (303) is rotatably connected to the inner axis of the positioning square tube (302), the positioning square tube (302) passes through the positioning slider (304) and is slidably connected thereto, and the positioning screw (303) passes through the positioning slider (304) and is threadedly connected thereto.

2. The auxiliary device for testing the optical effect of COB light board products according to claim 1, characterized in that: The power supply platform (201) is rotatably connected to the working platform (101), a power supply board (202) is embedded in the middle of the power supply platform (201), and a plurality of sub-control sockets (203) are electrically connected to the power supply board (202).

3. The auxiliary device for testing the optical effect of COB light board products according to claim 1, characterized in that: There are two positioning square cylinders (302), and the lower ends of the two positioning square cylinders (302) are commonly mounted with a first transmission box (301).

4. The auxiliary device for testing the optical effect of COB light board products according to claim 3, characterized in that: The inner sides of both ends of the first transmission box (301) are rotatably connected with a transmission shaft (308), the transmission shaft (308) is coaxial with the positioning screw (303), the transmission shaft (308) passes through the first transmission box (301) and is fixedly connected to the positioning screw (303), the middle outer periphery of the transmission shaft (308) is fixedly sleeved with a transmission worm wheel (306), one side of the transmission worm wheel (306) is provided with a transmission worm (307), both sides of the transmission worm wheel (307) are respectively engaged with the corresponding transmission worm wheel (306) for transmission, and the transmission worm wheel (307) is rotatably connected to the first transmission box (301).

5. The auxiliary device for testing the optical effect of COB light board products according to claim 4, characterized in that: The end of the transmission worm (307) passes through the side wall of the first transmission box (301), and a lifting knob (309) is installed on the end of the transmission worm (307). A supporting slide (305) is installed on the side of the positioning square tube (302) away from the second clamping mechanism (104), and the supporting slide (305) passes through the positioning slider (304) and is slidably connected thereto.

6. The auxiliary device for testing the optical effect of COB light board products according to claim 1, characterized in that: A rotating support shaft (411) is passed through the middle of the rotating frame (410) and is rotatably connected thereto. A support and positioning frame (401) is fixedly connected to one side of the middle of the rotating support shaft (411). A groove is provided in the middle of the rotating frame (410) to cooperate with the rotation of the support and positioning frame (401). A positioning bolt (412) is threadedly passed through one side of the end of the rotating frame (410).

7. The auxiliary device for testing the optical effect of COB light board products according to claim 6, characterized in that: One end of the support and positioning frame (401) is connected to the second transmission box (402), and the other end of the support and positioning frame (401) is installed with a support block (403). A bidirectional screw (404) is provided between the second transmission box (402) and the support block (403), and the bidirectional screw (404) is rotatably connected to the second transmission box (402) and the support block (403) respectively.

8. The auxiliary device for testing the optical effect of COB light board products according to claim 7, characterized in that: A positioning worm wheel is rotatably connected in the second transmission box (402), one end of the rotating shaft of the positioning worm wheel is fixedly connected to the bidirectional screw (404), a positioning worm is provided in the second transmission box (402) and on one side of the positioning worm wheel, the positioning worm is meshed with the positioning worm wheel for transmission, the positioning worm is rotatably connected to the second transmission box (402) and one end passes through the second transmission box (402), and a clamping knob (413) is installed on the end through which the positioning worm passes.

9. The auxiliary device for testing the optical effect of COB light board products according to claim 7, characterized in that: Both sides of the bidirectional screw (404) are threadedly connected with a transmission slider (405), both sides of the transmission slider (405) pass through the side wall of the support positioning frame (401), and the side wall of the support positioning frame (401) is provided with a through slide groove that is slidably connected to the transmission slider (405), and the lower end of the C-shaped groove rod (407) is fixedly connected with a positioning slide (406), the positioning slide (406) is slidably connected to the support positioning frame (401), and the positioning slide (406) is correspondingly fixedly connected to the transmission slider (405).

10. The auxiliary device for testing the optical effect of COB light board products according to claim 1, characterized in that: A C-shaped clamping pad (408) is installed inside the C-shaped slot rod (407), and a support pad (409) is fixedly connected to the upper end of the C-shaped slot rod (407) on a side close to the power supply platform (201).

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