Backlight testing fixture

Abstract

The utility model relates to backlight testing technical field especially, and more particularly to a backlight testing fixture. The utility model provides a kind of to different size backlight source is clamped and limited quickly, simple operation, flexible backlight testing fixture of use. A kind of backlight testing fixture, including workbench, buffer assembly, placement plate and rack, workbench is equipped with buffer assembly, and buffer assembly is equipped with placement plate, and the left and right two parts of placement plate are slidably connected with clamping block, and clamping block lower side is connected with rack. The utility model is through the synchronous clamping frame and clamping block to the four sides of backlight source are quickly clamped, then rotates screw, so that clamping frame moves under the action of screw thread, according to the size adjustment clamping frame of backlight source, subsequently rotates rotary frame, then detection plate is taken out downward and is replaced, reaches different size backlight source can be quickly clamped and limited, simple operation, flexible effect of use.

Description

Technical Field

[0001] This utility model relates to the field of backlight testing technology, and in particular to a backlight testing fixture. Background Technology

[0002] Backlights, as one of the core components of LCD devices, are widely used in many fields such as smartphones, tablets, laptops, LCD TVs, and automotive displays. In the production and manufacturing process of backlights, optical performance testing is a key link to ensure product quality, and test fixtures are an important guarantee for achieving accurate testing.

[0003] Existing backlight testing fixtures typically employ a fixed structure design, meaning that fixtures are custom-made for backlights of specific sizes. The size adjustment range of their clamping and limiting mechanisms is limited. When testing backlights of different sizes, operators need to replace the entire set of fixtures or make complex mechanical adjustments to the fixtures, which consumes a lot of time and manpower. Furthermore, when clamping backlights, it is necessary to adjust the fixtures one by one to install the backlights, which is cumbersome and makes it impossible to clamp the backlights on all four sides simultaneously.

[0004] Therefore, it is necessary to design a backlight testing fixture that can quickly clamp and limit backlights of different sizes, is easy to operate, and is flexible in use. Utility Model Content

[0005] To overcome the shortcomings of existing backlight testing fixtures, which require operators to replace the entire fixture or make complex mechanical adjustments when testing backlights of different sizes, resulting in significant time and labor costs, and which cumbersomely require adjusting each fixture individually to install the backlight, and cannot simultaneously clamp all four sides of the backlight, this invention provides a backlight testing fixture that can quickly clamp and limit backlights of different sizes, is simple to operate, and is flexible in use.

[0006] The technical implementation scheme of this utility model is as follows: A backlight testing fixture includes a worktable, a buffer assembly, a placement plate, a rack, clamping blocks, a guide plate, a gear, a torsion spring, a sliding frame, a screw, a clamping frame, and a detection assembly. The worktable is provided with a buffer assembly, and the buffer assembly is provided with a placement plate. Clamping blocks are slidably connected to both the left and right sides of the placement plate. A rack is connected to the lower side of each clamping block. A guide plate is connected to the side of the rack that is far apart from each other. A gear is rotatably connected to the middle of the placement plate. The racks mesh with the gears. A torsion spring is connected between the gear and the placement plate. Sliding frames are slidably connected to both the front and rear sides of the placement plate. The sliding frames are slidably engaged with adjacent guide plates. A screw is rotatably connected to the middle of each sliding frame. A clamping frame is threadedly connected to each screw. The clamping frame is slidably connected to the adjacent sliding frame. A detection assembly capable of detecting backlight is provided on the upper part of the worktable.

[0007] More preferably, knobs are provided on the sides of the screws that are far apart from each other.

[0008] More preferably, the clamps are equipped with soft pads.

[0009] More preferably, the buffer assembly includes a sliding sleeve, a sliding rod, and a telescopic spring. Sliding sleeves are connected to both the left and right sides of the worktable. Sliding rods are slidably connected to the sliding sleeves. Each sliding rod is connected to an adjacent sliding sleeve by a telescopic spring. Each sliding rod is connected to a placement plate.

[0010] More preferably, the detection assembly includes an electric actuator, a mounting bracket, a detection plate, and a rotating bracket. The electric actuator is connected to the upper part of the worktable, and the electric actuator and the processor are electrically connected through a control module. The mounting bracket is connected to the telescopic end of the electric actuator, and the detection plate is located below the mounting bracket. The rotating brackets are rotatably connected to the upper left and right sides of the detection plate, and the rotating brackets are snapped into the mounting bracket.

[0011] More preferably, the mounting bracket has docking slots on both the left and right sides.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a clamping frame and a clamping block to quickly clamp the four sides of the backlight in sync. Then, the screw is rotated so that the clamping frame moves under the action of the screw. The distance of the clamping frame is adjusted according to the size of the backlight. Then, the rotating frame is rotated and the detection plate is taken out downwards for replacement. This achieves the effect of quickly clamping and limiting backlights of different sizes. The operation is simple and the use is flexible.

[0013] 2. When the detection plate moves downward to contact the backlight, it will drive the slide rod to move downward on the slide sleeve. The telescopic spring will contract and buffer the pressure during the downward detection, thus preventing damage to the backlight. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the sliding sleeve and sliding rod components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the placement plate and clamping block of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the rack and guide plate and other components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the mounting frame and detection plate of this utility model.

[0019] The components in the attached diagram are labeled as follows: 1. Workbench, 2. Sliding sleeve, 3. Sliding rod, 4. Telescopic spring, 5. Placement plate, 6. Rack, 7. Clamping block, 8. Guide plate, 9. Gear, 10. Torsion spring, 11. Sliding frame, 12. Screw, 13. Clamping frame, 14. Electric actuator, 15. Mounting frame, 16. Detection plate, 17. Rotating frame. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] A backlight testing fixture, such as Figure 1 , Figure 3 and Figure 4 As shown, the assembly includes a worktable 1, a buffer assembly, a placement plate 5, a rack 6, a clamping block 7, a guide plate 8, a gear 9, a torsion spring 10, a sliding frame 11, a screw 12, a clamping frame 13, and a detection assembly. The worktable 1 is equipped with a buffer assembly, and the buffer assembly has a placement plate 5. Clamping blocks 7 are slidably connected to both sides of the placement plate 5. Racks 6 are connected to the lower sides of the clamping blocks 7. Guide plates 8 are connected to the sides of the racks 6 that are furthest apart. A gear 9 is rotatably connected to the center of the placement plate 5. All racks 6 mesh with gears 9. A torsion spring 10 is connected between the wheel 9 and the placement plate 5. The front and rear parts of the placement plate 5 are slidably connected to the sliding frame 11. The sliding frame 11 is slidably engaged with the adjacent guide plate 8. The middle of the sliding frame 11 is rotatably connected to the screw 12. The screw 12 is provided with a knob on the side away from each other for easy gripping. The screw 12 is threadedly connected to the clamping frame 13. The clamping frame 13 is provided with a soft pad. The clamping frame 13 is slidably connected to the adjacent sliding frame 11. The upper part of the worktable 1 is provided with a detection component that can detect the backlight.

[0022] like Figure 1 and Figure 5 As shown, the detection assembly includes an electric actuator 14, a mounting bracket 15, a detection plate 16, and a rotating bracket 17. The electric actuator 14 is connected to the upper part of the worktable 1. The electric actuator 14 and the processor are electrically connected through a control module. The mounting bracket 15 is connected to the telescopic end of the electric actuator 14. The mounting bracket 15 has docking slots on both the left and right sides. The detection plate 16 is located below the mounting bracket 15. The rotating bracket 17 is rotatably connected to the upper sides of both the left and right sides of the detection plate 16. The rotating bracket 17 is engaged with the mounting bracket 15.

[0023] When using this invention, first place the workbench 1 in the backlight testing area, then pull the clamp 7 outwards, causing the rack 6 to move. The rack 6 meshes with the gear 9, causing the gear 9 to rotate. The torsion spring 10 deforms, causing the clamp 7 at the other end to move outwards synchronously. As the rack 6 moves, it also moves the guide plate 8, causing the sliding frame 11 to move along the guide plate 8, thus moving the sliding frame 11 outwards synchronously. Then, place the backlight on the placement plate 5, and then release the clamp 7. The torsion spring 10 returns to its original position. The gear 9 is driven to rotate and reset, and the rack 6 meshes with the gear 9, causing the clamping block 7 to move inward synchronously. At the same time, the sliding frame 11 moves along the guide plate 8, causing the sliding frame 11 to move inward synchronously, so that the clamping frame 13 moves inward synchronously. The clamping frame 13 and the clamping block 7 simultaneously clamp the four sides of the backlight quickly. After the backlight is clamped, the electric push rod 14 is activated, which drives the mounting frame 15 and the detection plate 16 to move downward, so that the detection plate 16 contacts the backlight. Then, the backlight is observed to detect whether it emits light. When it is necessary to test backlights of different sizes, the screw 12 can be rotated to move the clamping frame 13 under the action of the thread. The distance of the clamping frame 13 can be adjusted according to the size of the backlight. Then, the rotating frame 17 can be rotated so that the rotating frame 17 is no longer limited by the mounting frame 15. Then, the detection plate 16 can be taken out downwards for replacement. This allows for quick clamping and limiting of backlights of different sizes. The operation is simple and the use is flexible. like Figure 1 and Figure 2 As shown, the buffer assembly includes a sliding sleeve 2, a sliding rod 3, and a telescopic spring 4. Sliding sleeves 2 are connected to both the left and right sides of the worktable 1. Sliding rods 3 are slidably connected to the sliding sleeves 2. Telescopic springs 4 are connected between each sliding rod 3 and the adjacent sliding sleeve 2. Each sliding rod 3 is connected to the placement plate 5.

[0024] When the detection plate 16 moves downward to contact the backlight, it will cause the slide bar 3 to move downward on the slide sleeve 2, and the telescopic spring 4 will contract. The telescopic spring 4 will provide buffering, thus preventing damage to the backlight during the downward detection.

[0025] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A backlight testing fixture, characterized in that it includes: The system includes a worktable (1), a buffer assembly, a placement plate (5), a rack (6), a clamp (7), a guide plate (8), a gear (9), a torsion spring (10), a sliding frame (11), a screw (12), a clamping frame (13), and a detection assembly. The worktable (1) is equipped with a buffer assembly, and the buffer assembly is equipped with a placement plate (5). The placement plate (5) is slidably connected to the left and right sides with clamps (7). The lower side of each clamp (7) is connected to a rack (6). The sides of the racks (6) that are far apart from each other are connected to guide plates (8). The middle of the placement plate (5) is rotatably connected to a gear. (9), rack (6) meshes with gear (9), gear (9) is connected to torsion spring (10) between placement plate (5), sliding frame (11) is slidably connected to both front and rear parts of placement plate (5), sliding frame (11) is slidably engaged with adjacent guide plate (8), screw (12) is rotatably connected to the middle of sliding frame (11), clamping frame (13) is threadedly connected to screw (12), clamping frame (13) is slidably connected to adjacent sliding frame (11), and detection component capable of detecting backlight is provided on the upper part of worktable (1).

2. A backlight testing fixture according to claim 1, characterized in that, Knobs are provided on the opposite sides of the screws (12).

3. A backlight testing fixture according to claim 1, characterized in that, The clamps (13) are all equipped with soft pads.

4. A backlight testing fixture according to claim 1, characterized in that, The buffer assembly includes a sliding sleeve (2), a sliding rod (3) and a telescopic spring (4). The left and right sides of the worktable (1) are connected to the sliding sleeve (2). The sliding sleeve (2) is slidably connected to the sliding rod (3). The sliding rod (3) is connected to the adjacent sliding sleeve (2) by a telescopic spring (4). The sliding rod (3) is connected to the placement plate (5).

5. A backlight testing fixture according to claim 1, characterized in that, The detection assembly includes an electric push rod (14), a mounting bracket (15), a detection plate (16), and a rotating bracket (17). The electric push rod (14) is connected to the upper part of the worktable (1). The electric push rod (14) and the processor are electrically connected through a control module. The mounting bracket (15) is connected to the telescopic end of the electric push rod (14). The detection plate (16) is located below the mounting bracket (15). The rotating bracket (17) is rotatably connected to the upper left and right sides of the detection plate (16). The rotating bracket (17) is engaged with the mounting bracket (15).

6. A backlight testing fixture according to claim 5, characterized in that, The mounting bracket (15) has docking slots on both the left and right sides.

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