CN221225214U - Light source detection device of liquid crystal display screen - Google Patents

Abstract

The utility model relates to the technical field of display screen detection, and discloses a light source detection device for a liquid crystal display screen, comprising: a detection table, one end of the upper surface of the detection table is fixedly connected with a baffle, the upper surface of the baffle is fixedly connected with a guide rail, and the guide rail is slidably connected with a first adjustment mechanism; through the cooperation between the second adjustment mechanism and the positioning mechanism, a first gear is driven to mesh with a second gear through a forward and reverse motor, so that a bidirectional screw is threadedly connected with first protrusions on two groups of clamping plates, and the spacing between the two groups of clamping plates is adjusted, so that the buffer plate clamps the liquid crystal display screen, and the damping spring is used to prevent the buffer plate from rigidly clamping and damaging the liquid crystal display screen, and by clamping liquid crystal display screens of different specifications, a double-axis motor is controlled to drive the threaded blocks on the two groups of mounting blocks to move, so as to adjust the positions of the two groups of light source collectors, so as to be suitable for the detection of liquid crystal display screens of different specifications, thereby increasing the scope of application.

Description

A light source detection device for a liquid crystal display screen

Technical Field

The utility model relates to the technical field of display screen detection, in particular to a light source detection device for a liquid crystal display screen.

Background technique

The display screen is composed of several display units that can be combined and spliced, plus a set of appropriate main control panels or control systems, so display panels or unit boxes of various specifications can be combined with controllers with different control technologies to form many kinds of display screens to meet the needs of different display requirements in different environments. At present, in the production process of LCD screens, the display light source conditions of LCD screens are sampled and tested to understand the light source display conditions of LCD screens;

In the prior art, the Chinese utility model with publication number: CN215954012U discloses a light source detection device for a liquid crystal display screen, comprising a detection platform, a support column is symmetrically arranged at the bottom end of the detection platform, a camera is arranged in the middle of the bottom end of the mounting plate, light source collectors are symmetrically arranged on both sides of the camera, a clamping plate is connected to one end of the telescopic rod of the second cylinder, a buffer spring member is evenly arranged on one side of the clamping plate, and a buffer clamping plate is connected to one end of the buffer spring member;

Although the above technical solution uses the second cylinder to push the display screen clamping assembly to clamp and fix the two sides of the display screen, thereby improving the stability of the display screen during light source detection, and then connects the display screen to an external power supply to make the display screen in a display state, the camera is set to monitor the display screen during light source detection, and can handle and resolve unexpected situations in the first time; however, it is not convenient for staff to fix LCD screens of different sizes, and thus it is not convenient for staff to detect LCD screens of different sizes, and it is not convenient for staff to adjust the position of the light source collector, and thus it is impossible to detect different positions of different LCD screens. Therefore, we need to propose a light source detection device for a liquid crystal display screen.

Utility Model Content

The purpose of the utility model is to provide a light source detection device for a liquid crystal display screen, which can quickly install and fix the liquid crystal display screen, and is convenient for installing and fixing liquid crystal display screens of different specifications, thereby improving the application range of the device and facilitating the adjustment of the position of a light source collector, so as to facilitate the adjustment of the detection position when detecting light sources for liquid crystal display screens of different specifications, and facilitate light source detection for liquid crystal display screens, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the utility model provides the following technical solution: a light source detection device for a liquid crystal display screen, comprising:

A detection platform, wherein one end of the upper surface of the detection platform is fixedly connected to a baffle, the upper surface of the baffle is fixedly connected to a guide rail, the guide rail is slidably connected to a first adjustment mechanism, and a second adjustment mechanism is arranged on the first adjustment mechanism, and a positioning mechanism is arranged on the upper surface of the detection platform;

The second adjustment mechanism comprises a dual-axis motor and two groups of mounting blocks, the upper surfaces of the two groups of mounting blocks are fixedly connected with threaded blocks, the two groups of output shafts of the dual-axis motor are drivingly connected with one-way screws, and the two groups of one-way screws are respectively threadedly connected with the two groups of threaded blocks, one end of the two groups of one-way screws is provided with a limited position seat, and the lower surfaces of the two groups of mounting blocks are provided with a light source collector;

The positioning mechanism includes a forward and reverse motor, two groups of clamping plates and a bidirectional screw. A second side groove for rotationally connecting the bidirectional screw is opened on one side of the baffle plate. A first protrusion for threaded connection of the bidirectional screw is fixedly connected on one side of the two groups of clamping plates, and the first protrusion is slidably connected to the inner cavity of the second side groove. The output shaft of the forward and reverse motor is transmission-connected to a rotating shaft, and one end of the rotating shaft is fixedly connected to a first gear. One end of the bidirectional screw passes through the baffle plate and is fixedly connected to a second gear, and the second gear is meshed with the first gear.

Preferably, a plurality of groups of damping springs are fixedly connected to one side opposite to the two groups of clamping plates, and a buffer plate is fixedly connected to one end of the plurality of groups of damping springs opposite to the clamping plates.

Preferably, a first side groove is opened on one side of the detection platform, and a guide rod is fixedly connected in the first side groove, and a second protrusion is fixedly connected to one end of the lower surface of the two groups of clamps, and the second protrusion is slidably connected to the outside of the guide rod.

Preferably, the first adjustment mechanism includes a vertical plate slidably connected to the guide rail, a horizontal plate is fixedly connected to an upper end of one side of the vertical plate, a slide plate is arranged directly below the horizontal plate, and the dual-axis motor is arranged at one end of the upper surface of the slide plate.

Preferably, a slider is fixedly connected to the upper surface of the skateboard, a sliding groove is provided on the lower surface of the horizontal plate for sliding connection of the slider, an electric push rod is fixedly connected to the upper end of the other side of the vertical plate, and the telescopic end of the electric push rod passes through the vertical plate and is fixedly connected to one side of the skateboard.

Preferably, two groups of insertion rods are fixedly connected to opposite sides of the two groups of mounting blocks, and the two groups of mounting blocks are slidably inserted on both sides adjacent to the skateboard and the electric push rod through the two groups of insertion rods, and a camera is fixedly connected to one end of the lower surface of the skateboard.

Preferably, a lifting cylinder is fixedly connected to the upper surface of the detection platform, a side plate is fixedly connected to the lower end of the other side of the vertical plate, and the telescopic rod end of the lifting cylinder is fixedly connected to the lower surface of the side plate.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model mainly achieves the coordination between the second adjusting mechanism and the positioning mechanism, and drives the first gear and the second gear to mesh through the forward and reverse motors, so that the bidirectional screw is threadedly connected with the first protrusions on the two groups of clamps, and the spacing between the two groups of clamps is adjusted, so that the buffer plate clamps the LCD screen, and the damping spring is used to prevent the rigid clamping of the buffer plate from damaging the LCD screen, and by clamping LCD screens of different specifications, the dual-axis motor is controlled to drive the threaded blocks on the two groups of mounting blocks to move, so as to adjust the position of the two groups of light source collectors, so as to facilitate the detection of LCD screens of different specifications, thereby increasing the scope of application.

2. The utility model cooperates between the first adjusting mechanism and the lifting cylinder. The lifting cylinder drives the first adjusting mechanism to adjust the height, thereby facilitating the adjustment of the distance between the camera and the light source collector and improving the accuracy of light source detection. At the same time, the electric push rod drives the slide plate to move to facilitate the adjustment of the horizontal position of the camera and the light source collector. It is suitable for the detection of LCD screens of different specifications and improves the scope of application.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall front structure of the utility model;

FIG2 is a schematic diagram of the overall rear view structure of the utility model;

FIG3 is a schematic diagram of the structures of the first adjusting mechanism and the second adjusting mechanism of the present invention;

FIG. 4 is a schematic diagram of the positioning mechanism structure of the present utility model.

In the figure: 1. test table; 2. baffle; 3. guide rail; 4. first adjusting mechanism; 41. vertical plate; 42. horizontal plate; 421. slide groove; 43. electric push rod; 44. slide plate; 441. slide block; 45. side plate; 5. second adjusting mechanism; 51. double-axis motor; 52. one-way screw; 53. limit seat; 54. mounting block; 55. threaded block; 56. plug rod; 6. positioning mechanism; 61. forward and reverse motor; 62. rotating shaft; 63. first gear; 64. two-way screw; 65. second gear; 66. clamping plate; 661. first protrusion; 662. second protrusion; 67. damping spring; 68. buffer plate; 69. guide rod; 7. lifting cylinder; 8. first side groove; 9. second side groove; 10. camera; 11. light source collector.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-4. The utility model provides a technical solution: a light source detection device for a liquid crystal display screen, comprising:

A testing platform 1, a baffle 2 is fixedly connected to one end of the upper surface of the testing platform 1, a guide rail 3 is fixedly connected to the upper surface of the baffle 2, a first adjustment mechanism 4 is slidably connected to the guide rail 3, and a second adjustment mechanism 5 is arranged on the first adjustment mechanism 4, and a positioning mechanism 6 is arranged on the upper surface of the testing platform 1;

The second adjustment mechanism 5 includes a double-axis motor 51 and two sets of mounting blocks 54. The upper surfaces of the two sets of mounting blocks 54 are fixedly connected with threaded blocks 55. The two sets of output shafts of the double-axis motor 51 are drivingly connected with one-way screws 52, and the two sets of one-way screws 52 are respectively threadedly connected with the two sets of threaded blocks 55. One end of the two sets of one-way screws 52 is provided with a limited seat 53. The lower surfaces of the two sets of mounting blocks 54 are provided with a light source collector 11.

The positioning mechanism 6 includes a forward and reverse motor 61, two sets of clamps 66 and a bidirectional screw 64. A second side groove 9 for the bidirectional screw 64 to be rotatably connected is opened on one side of the baffle 2. One side of the two sets of clamps 66 is fixedly connected with a first protrusion 661 for the bidirectional screw 64 to be threadedly connected, and the first protrusion 661 is slidably connected to the inner cavity of the second side groove 9. The output shaft of the forward and reverse motor 61 is transmission-connected with the rotating shaft 62, and one end of the rotating shaft 62 is fixedly connected with the first gear 63. One end of the bidirectional screw 64 passes through the baffle 2 and is fixedly connected with the second gear 65, and the second gear 65 is meshed with the first gear 63.

Multiple groups of damping springs 67 are fixedly connected to the opposite sides of the two groups of clamps 66, and a buffer plate 68 is fixedly connected to one end of the multiple groups of damping springs 67 opposite to the clamps 66. The buffer plate 68 is clamped by the multiple groups of damping springs 67 to buffer the LCD screen, thereby avoiding damage to the LCD screen by rigid clamping.

A first side groove 8 is opened on one side of the detection platform 1, and a guide rod 69 is fixedly connected in the first side groove 8. One end of the lower surface of the two groups of clamps 66 is fixedly connected with a second protrusion 662, and the second protrusion 662 is slidably connected to the outer side of the guide rod 69. The second protrusion 662 slides in the first side groove 8, and the guide rod 69 guides the sliding of the second protrusion 662, thereby improving the stability of the relative movement of the clamps 66.

The first adjustment mechanism 4 includes a vertical plate 41 slidably connected to the guide rail 3, a horizontal plate 42 is fixedly connected to the upper end of one side of the vertical plate 41, a slide plate 44 is arranged directly below the horizontal plate 42, a dual-axis motor 51 is arranged at one end of the upper surface of the slide plate 44, and a slider 441 on the slide plate 44 slides with the slide groove 421 under the horizontal plate 42, thereby improving the stability of the movement of the slide plate 44.

A slider 441 is fixedly connected to the upper surface of the slide plate 44, a slide groove 421 is provided on the lower surface of the horizontal plate 42 for sliding connection of the slider 441, an electric push rod 43 is fixedly connected to the upper end of the other side of the vertical plate 41, and the telescopic end of the electric push rod 43 passes through the vertical plate 41 and is fixedly connected to one side of the slide plate 44. The electric push rod 43 is used to facilitate the position adjustment of the camera 10 and the light source collector 11, so as to facilitate the light source detection of LCD screens of different specifications.

Two sets of insertion rods 56 are fixedly connected to the opposite sides of the two sets of mounting blocks 54. The two sets of mounting blocks 54 are slidably inserted on the two sides adjacent to the slide plate 44 and the electric push rod 43 through the two sets of insertion rods 56. One end of the lower surface of the slide plate 44 is fixedly connected to the camera 10. The insertion rods 56 improve the stability of the mounting blocks 54 during relative movement, thereby improving the accuracy of the light source collector 11 in detecting the LCD screen.

A lifting cylinder 7 is fixedly connected to the upper surface of the detection platform 1, and a side panel 45 is fixedly connected to the lower end of the other side of the vertical plate 41, and the telescopic rod end of the lifting cylinder 7 is fixedly connected to the lower surface of the side panel 45. The lifting cylinder 7 is used to facilitate adjustment of the distance between the camera 10 and the LCD screen, thereby facilitating the detection of the LCD screen.

When in use, the LCD screen is placed on the test bench 1 and against the baffle 2, the forward and reverse motor 61 is started to drive the rotating shaft 62, the rotating shaft 62 drives the first gear 63 to mesh with the second gear 65, the second gear 65 drives the bidirectional bolt to be threadedly connected with the first protrusion 661 on the two groups of clamping plates 66, thereby driving the two groups of clamping plates 66 to be relatively close, the two groups of clamping plates 66 are slidably connected with the guide rod 69 through the second protrusion 662, and the stability of the two groups of clamping plates 66 when moving is improved, so that the buffer plate 68 clamps the LCD screen and positions it, and the damping spring 67 is used to prevent the buffer plate 68 from causing rigid damage to the LCD screen when clamping it. According to the specifications of the LCD screen, the side plate 45 is lifted by the lifting cylinder 7 to move the camera 10 closer to or away from the LCD screen, thereby improving the cleanliness of the shooting, and the telescopic end of the electric push rod 43 is extended and retracted to make the slider 441 slide in the slide groove 421, so that the camera 10 under the slide plate 44 is moved to the top of the LCD screen, and the dual-axis motor 51 is adjusted according to the size of the LCD screen, and the threaded block 55 on the mounting block 54 is respectively driven by two sets of one-way bolts, so as to adjust the distance between the mounting block 54 and the slide plate 44, so that the light source collector 11 under the mounting block 54 can detect the light source of the LCD screen and improve the accuracy of the detection.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A light source detection device for a liquid crystal display, comprising:

The detection device comprises a detection table (1), wherein one end of the upper surface of the detection table (1) is fixedly connected with a baffle plate (2), the upper surface of the baffle plate (2) is fixedly connected with a guide rail (3), the guide rail (3) is slidably connected with a first adjusting mechanism (4), the first adjusting mechanism (4) is provided with a second adjusting mechanism (5), and the upper surface of the detection table (1) is provided with a positioning mechanism (6);

The second adjusting mechanism (5) comprises a double-shaft motor (51) and two groups of mounting blocks (54), wherein the upper surfaces of the two groups of mounting blocks (54) are fixedly connected with threaded blocks (55), two groups of output shafts of the double-shaft motor (51) are in transmission connection with unidirectional screws (52), the two groups of unidirectional screws (52) are in threaded connection with the two groups of threaded blocks (55) respectively, one ends of the two groups of unidirectional screws (52) are provided with limiting seats (53), and the lower surfaces of the two groups of mounting blocks (54) are provided with light source collectors (11);

The positioning mechanism (6) comprises a forward and reverse rotating motor (61), two groups of clamping plates (66) and a bidirectional screw (64), a second side groove (9) for the bidirectional screw (64) to rotate and connect is formed in one side of the baffle (2), one side of each clamping plate (66) is fixedly connected with a first lug (661) for the bidirectional screw (64) to be in threaded connection, the first lugs (661) are slidably connected in the inner cavity of the second side groove (9), an output shaft of the forward and reverse rotating motor (61) is in transmission connection with a rotating shaft (62), one end of the rotating shaft (62) is fixedly connected with a first gear (63), one end of the bidirectional screw (64) penetrates through the baffle (2) and is fixedly connected with a second gear (65), and the second gear (65) is meshed with the first gear (63).

2. The light source detection device of a liquid crystal display according to claim 1, wherein: the two groups of damping springs (67) are fixedly connected to one sides of the clamping plates (66), which are opposite to each other, and one ends of the damping springs (67), which are opposite to the clamping plates (66), are fixedly connected with buffer plates (68).

3. The light source detection device of a liquid crystal display according to claim 2, wherein: one side of the detection table (1) is provided with a first side groove (8), a guide rod (69) is fixedly connected in the first side groove (8), one ends of the lower surfaces of the two groups of clamping plates (66) are fixedly connected with second convex blocks (662), and the second convex blocks (662) are slidably connected to the outer sides of the guide rod (69).

4. The light source detection device of a liquid crystal display according to claim 1, wherein: the first adjusting mechanism (4) comprises a vertical plate (41) which is connected to the guide rail (3) in a sliding mode, a transverse plate (42) is fixedly connected to the upper end of one side of the vertical plate (41), a sliding plate (44) is arranged right below the transverse plate (42), and the double-shaft motor (51) is arranged at one end of the upper surface of the sliding plate (44).

5. The light source detecting device for a liquid crystal display according to claim 4, wherein: the upper surface fixedly connected with slider (441) of slide (44), spout (421) that supply slider (441) sliding connection are seted up to the lower surface of diaphragm (42), the opposite side upper end fixedly connected with electric putter (43) of riser (41), and the flexible end of electric putter (43) runs through riser (41) and fixed connection in one side of slide (44).

6. The light source detecting device for a liquid crystal display according to claim 5, wherein: two sets of opposite sides of installation piece (54) are all fixedly connected with two sets of inserted bars (56), two sets of installation piece (54) are all pegged graft in slide (44) and electric putter (43) adjacent both sides through two sets of inserted bars (56), one end fixedly connected with camera (10) of slide (44) lower surface.

7. The light source detecting device for a liquid crystal display according to claim 6, wherein: the upper surface fixedly connected with jacking cylinder (7) of test bench (1), the opposite side lower extreme fixedly connected with curb plate (45) of riser (41), and the telescopic rod end fixed connection of jacking cylinder (7) is at the lower surface of curb plate (45).