Liquid crystal display screen testing device

Abstract

The utility model belongs to the technical field of liquid crystal display screen production, and discloses a liquid crystal display screen testing device which comprises a device body, the device body comprises an outer frame, a placing plate, a box body, a transverse driving assembly, a testing assembly, a vertical driving assembly and a controller, and a lifting structure is arranged in a placing groove formed in the placing plate. And the lifting structure comprises an outer cover, a first forward and reverse motor, a screw rod, a side plate, a supporting plate and a screw block, the outer cover is installed in the outer frame, and the first forward and reverse motor is arranged in the outer cover. According to the utility model, through the arrangement of the lifting structure, the display screen can be quickly moved out of the placing groove formed in the placing plate after testing, so that the problem that the contact area between the hand and the display screen is small because the hand only can contact the outer edge of the display screen when the hand extends to the placing groove with limited space in the prior art is solved, and the taking stability is ensured; and the phenomenon that the display screen falls and collides due to careless taking is also avoided, and the taking convenience is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid crystal display screen production, and in particular relates to a liquid crystal display screen testing device. Background Art

[0002] Liquid crystal display is a flat, thin display device composed of a certain number of color or black and white pixels. It is placed in front of a light source or a reflective surface. It has low power consumption and is suitable for electronic devices using batteries. During the production process of liquid crystal display, a test device is required to test the screen of the liquid crystal display.

[0003] Currently, after testing, staff members need to reach into the placement plate to take out the display screen. Due to limited space in the placement slot, their hands can only touch the outer edge of the display screen, resulting in a small contact area between the hand and the display screen. The stability is poor when taking the display screen, which can easily cause the display screen to fall and bump, making it inconvenient to take out. In addition, the placement plate is generally fixedly installed, and special disassembly tools are required when replacing it, which makes its disassembly and assembly cumbersome, increases the difficulty of disassembly and assembly, and is inconvenient to replace. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid crystal display screen testing device to solve the problems mentioned in the above background technology that when taking out the display screen after the test, due to the limited space in the placement slot, the hand can only touch the outer edge of the display screen, resulting in a small contact area between the hand and the display screen, poor stability when taking it out, and the general placement plate is fixedly installed, and special disassembly tools are required for replacement, which makes disassembly and assembly cumbersome and inconvenient to replace.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid crystal display screen testing device, comprising a device body, the device body comprising an outer frame, a placement plate, a box body, a horizontal drive component, a test component, a vertical drive component and a controller, a lifting structure is provided in the placement slot opened on the placement plate, the lifting structure comprises an outer cover, a first forward and reverse motor, a screw, a side plate, a support plate and a screw block, the outer cover is installed inside the outer frame, the first forward and reverse motor is arranged inside the outer cover, the screw is connected to the output end of the first forward and reverse motor, the side plates are symmetrically arranged on both sides of the screw, the support plate is arranged in a through groove reserved in the placement slot opened on the placement plate, the upper end surface of the side plate is connected to the support plate, the screw block is connected between the two side plates, and the screw block is threadedly connected to the outside of the screw.

[0006] Preferably, the placement plate is provided with a disassembly and assembly structure, the disassembly and assembly structure comprises a card block and a card slot, the card block is symmetrically connected to the outer wall of the placement plate, and the card slot is opened on the surface wall of the outer frame.

[0007] Preferably, the disassembly and assembly structure further includes:

[0008] A receiving block, wherein the receiving block is symmetrically connected to the inner surface wall of the outer frame;

[0009] A slot, the slot is opened through the interior of the receiving block;

[0010] An insert block, which is inserted into the slot and one end of which is connected to the lower end surface of the placement plate;

[0011] A clamping plate is connected to the other end of the inserting block through a bearing and a rotating rod.

[0012] Preferably, the test assembly consists of a connecting rod and a test head, the test head is installed on the lower end surface of the connecting rod, the box is movably connected to the inside of the outer frame, and the controller is fixedly installed on the outer wall of the outer frame.

[0013] Preferably, the lateral drive assembly consists of a second forward and reverse motor, gears and chains, the second forward and reverse motor is installed on the front wall of the box, and the output end of the second forward and reverse motor is connected to one of the gears, and the chain is meshed and connected to the outside of the two gears.

[0014] Preferably, the vertical drive assembly is composed of a hydraulic cylinder and a hydraulic telescopic rod, and the free end of the hydraulic telescopic rod is connected to the upper end surface of the box body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model provides a lifting structure, so that after testing, the display screen can be quickly moved out of the placement slot provided on the placement plate, thereby solving the problem of the existing hand being forced into the placement slot with limited space so that the hand can only touch the outer edge of the display screen, resulting in a small contact area between the hand and the display screen. This ensures stability when taking the display screen, avoids the phenomenon of the display screen falling and bumping due to careless taking, and enhances the convenience of taking out.

[0017] (2) The utility model provides a disassembly and assembly structure. When the placement plate is worn and affects the test, the worn placement plate can be quickly removed and replaced with a new one. The disassembly and assembly method is simple to operate, and solves the problem that the existing placement plate is fixedly installed, which requires special disassembly tools during disassembly and assembly, resulting in cumbersome disassembly and assembly. The disassembly and assembly difficulty and time are reduced, and the replacement is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a planar cross-sectional view of the utility model;

[0020] Figure 3 This is an enlarged view of the lifting structure of the utility model;

[0021] Figure 4 This is an enlarged view of the disassembly and assembly structure of the utility model;

[0022] In the figure: 1. outer frame; 2. placement plate; 3. lifting structure; 31. outer cover; 32. first forward and reverse motor; 33. screw; 34. side plate; 35. support plate; 36. screw block; 4. box body; 5. disassembly and assembly structure; 51. card block; 52. card slot; 53. receiving block; 54. slot; 55. plug-in block; 56. card board; 6. horizontal drive component; 7. test component; 8. vertical drive component; 9. controller. DETAILED DESCRIPTION

[0023] 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.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model. Figure 2 This is a planar sectional view of the utility model. As shown in the figure, the test device includes a device body, which includes an outer frame 1, a placement plate 2, a box 4, a lateral drive component 6, a test component 7, a vertical drive component 8 and a controller 9. The test component 7 is composed of a connecting rod and a test head. The test head is installed on the lower end surface of the connecting rod. The surface of the liquid crystal display can be tested and processed by the test head. The box 4 is movably connected to the inside of the outer frame 1. The controller 9 is fixedly installed on the outer wall of the outer frame 1. The vertical drive component 8 is composed of a hydraulic cylinder and a hydraulic telescopic rod. The free end of the hydraulic telescopic rod is connected to the upper end surface of the box 4. The lifting operation of the test head can be realized through the cooperation of the hydraulic cylinder and the hydraulic telescopic rod. During testing, the test head can be brought close to the liquid crystal display.

[0025] Further, see Figure 2 As shown, the transverse drive assembly 6 is composed of a second forward and reverse motor, gears and chains. The second forward and reverse motor is installed on the front wall of the box 4, and the output end of the second forward and reverse motor is connected to one of the gears, and the chain is meshed and connected to the outside of the two gears.

[0026] Specifically, during the test, the second forward and reverse motor drives the gear to rotate forward and reverse, thereby driving the chain to rotate, so that the test component 7 moves left and right, and an all-round test of the LCD screen can be achieved.

[0027] In a specific embodiment of the present invention, refer to Figure 2 and Figure 3As shown, a lifting structure 3 is provided in the placement groove opened by the placement plate 2, and the lifting structure 3 includes an outer cover 31, a first forward and reverse motor 32, a screw 33, a side plate 34, a support plate 35 and a screw block 36. The outer cover 31 is installed inside the outer frame 1, the first forward and reverse motor 32 is arranged inside the outer cover 31, the screw 33 is connected to the output end of the first forward and reverse motor 32, the side plates 34 are symmetrically arranged on both sides of the screw 33, the support plate 35 is arranged in a through groove reserved in the placement groove opened by the placement plate 2, the upper end surface of the side plate 34 is connected to the support plate 35, the screw block 36 is connected between the two side plates 34, and the screw block 36 is threadedly connected to the outside of the screw 33.

[0028] Through the above technical solution:

[0029] After the test, first the first forward and reverse motor 32 drives the screw 33 to rotate, and the screw 33 and the screw block 36 are threadedly matched, so that the screw block 36 moves up, thereby driving the side panel 34 to move up, so that the support plate 35 rises as the side panel 34 moves up, and the display screen can be quickly moved out of the placement slot provided on the placement plate 2, solving the existing problem that the hand can only touch the outer edge of the display screen when extending the hand into the placement slot with limited space, resulting in a small contact area between the hand and the display screen, thereby ensuring the stability when taking it, and avoiding the phenomenon that the display screen falls and bumps due to careless taking, thereby enhancing the convenience of taking out. In addition, after taking it off, driving the screw 33 in the reverse direction according to the above operation can make the support plate 35 drop down and return to its original position, which is convenient for subsequent testing.

[0030] In a specific embodiment of the present invention, refer to Figure 2 and Figure 4 As shown, a disassembly structure 5 is provided on the placement plate 2, and the disassembly structure 5 includes a clamping block 51 and a clamping slot 52, the clamping block 51 is symmetrically connected to the outer wall of the placement plate 2, and the clamping slot 52 is opened on the surface wall of the outer frame 1.

[0031] The disassembly and assembly structure 5 also includes:

[0032] A receiving block 53, the receiving block 53 is symmetrically connected to the inner surface wall of the outer frame 1;

[0033] A slot 54, which is formed through the receiving block 53;

[0034] An insert block 55, the insert block 55 is inserted into the interior of the slot 54, and one end of the insert block 55 is connected to the lower end surface of the placement plate 2;

[0035] The clamping plate 56 is connected to the other end of the inserting block 55 through a bearing and a rotating rod.

[0036] Through the above technical solution:

[0037] When testing the influence of wear on the placement plate 2, first hold the card plate 56 and rotate it to change it from horizontal to vertical, then drag the placement plate 2 upward, and the card block 51 moves up in the card slot 52. After rising to the highest point of the card slot 52, pull the placement plate 2 outward, and the card block 51 moves out of the card slot 52, so that the worn placement plate 2 can be quickly removed. This disassembly method is simple to operate, and solves the problem that the existing placement plate 2 is fixedly installed and needs to rely on special disassembly tools during disassembly, which makes disassembly more cumbersome, reduces the difficulty of disassembly and reduces the disassembly time. In addition, according to the above operation, the new one can be installed in reverse, so that the placement plate 2 is easy to replace.

[0038] Although 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

1. A liquid crystal display screen testing device, characterized in that: The device comprises a device body, the device body comprising an outer frame (1), a placement plate (2), a box (4), a lateral drive component (6), a test component (7), a vertical drive component (8) and a controller (9); a lifting structure (3) is arranged in a placement groove provided on the placement plate (2); the lifting structure (3) comprises an outer cover (31), a first forward and reverse motor (32), a screw (33), a side plate (34), a supporting plate (35) and a screw block (36); the outer cover (31) is installed inside the outer frame (1); The first forward and reverse motor (32) is arranged inside the outer cover (31), the screw rod (33) is connected to the output end of the first forward and reverse motor (32), the side plates (34) are symmetrically arranged on both sides of the screw rod (33), the support plate (35) is arranged in a through groove reserved in the placement groove opened on the placement plate (2), the upper end surface of the side plate (34) is connected to the support plate (35), the screw block (36) is connected between the two side plates (34), and the screw block (36) is threadedly connected to the outside of the screw rod (33).

2. A liquid crystal display screen testing device according to claim 1, characterized in that: The placement plate (2) is provided with a disassembly and assembly structure (5), the disassembly and assembly structure (5) comprising a clamping block (51) and a clamping slot (52), the clamping block (51) being symmetrically connected to the outer wall of the placement plate (2), and the clamping slot (52) being opened on the outer wall of the outer frame (1).

3. A liquid crystal display screen testing device according to claim 2, characterized in that: The disassembly and assembly structure (5) further comprises: A receiving block (53), wherein the receiving block (53) is symmetrically connected to the inner surface wall of the outer frame (1); A slot (54), the slot (54) is opened through the interior of the receiving block (53); An insert block (55), the insert block (55) is inserted into the interior of the slot (54), and one end of the insert block (55) is connected to the lower end surface of the placement plate (2); A clamping plate (56) is connected to the other end of the inserting block (55) through a bearing and a rotating rod.

4. The liquid crystal display screen testing device according to claim 1, characterized in that: The test assembly (7) is composed of a connecting rod and a test head, wherein the test head is mounted on the lower end surface of the connecting rod, the box body (4) is movably connected to the inside of the outer frame (1), and the controller (9) is fixedly mounted on the outer wall of the outer frame (1).

5. The liquid crystal display screen testing device according to claim 1, characterized in that: The lateral drive assembly (6) is composed of a second forward and reverse motor, gears and a chain. The second forward and reverse motor is installed on the front wall of the box (4), and the output end of the second forward and reverse motor is connected to one of the gears. The chain is meshed and connected to the outside of the two gears.

6. A liquid crystal display screen testing device according to claim 1, characterized in that: The vertical drive assembly (8) is composed of a hydraulic cylinder and a hydraulic telescopic rod, and the free end of the hydraulic telescopic rod is connected to the upper end surface of the box body (4).

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