CN219286009U

CN219286009U - Liquid crystal display drive plate testing device

Info

Publication number: CN219286009U
Application number: CN202320180345.4U
Authority: CN
Inventors: 张文斌
Original assignee: Shanghai Union Force Information Co ltd
Current assignee: Shanghai Union Force Information Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-06-30
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a liquid crystal display drive plate testing device, which belongs to the technical field of liquid crystal display drive plates and comprises a testing box body, wherein a working table plate is arranged at the top of the testing box body, an air cylinder is arranged at the inner side of the testing box body, a supporting rod is arranged at the output end of the air cylinder, a strip-shaped groove matched with the supporting rod is formed in the top of the working table plate, a carrier plate is fixed at the top of the supporting rod, a positioning groove is formed in the middle position of the top of the carrier plate, and a first spring is arranged at the bottom of the positioning groove. The clamping plates at the two sides of the locating groove are arranged to be matched with the second springs for use, so that the driving plate can be extruded and fixed after being placed in the locating groove, the first springs and the top plate at the bottom of the locating groove are utilized for use, the driving plate can be automatically jacked up after the locating of the driving plate is relieved, and the driving plate is jacked up from the inside of the locating groove, so that the driving plate can be conveniently taken out, and the use is more convenient.

Description

Liquid crystal display drive plate testing device

Technical Field

The utility model relates to a testing device, in particular to a testing device for a liquid crystal display driving plate, and belongs to the technical field of liquid crystal display driving plates.

Background

The driving board is used for processing and controlling signals sent by an external host, then sending the signals to the liquid crystal panel to display images, an input interface of the driving board is connected with a main control chip of a display card of a computer main board through a connecting wire, an output interface of the driving board is connected with the liquid crystal panel through one or two signal output lines, and in the manufacturing process of the driving board of the liquid crystal display, the driving board is required to be tested for electrical performance generally.

At present, the liquid crystal display drive plate testing device is used for placing the liquid crystal display drive plate into the positioning groove of the carrier plate, and realizing accurate positioning through the positioning pin at the bottom of the positioning groove, so that the measurement accuracy is improved, the starting button is pressed, the carrier plate is driven by the air cylinder to slide mutually, the front end parts of the probes are respectively and electrically connected with the test contacts of the liquid crystal display drive plate in a butt joint manner, the probes are respectively and electrically connected with the test instrument, after the test is finished, the reset button is pressed, the carrier plate is driven by the air cylinder to slide forwards to finish resetting, and therefore, the electric performance of the liquid crystal display drive plate is tested, the operation is simple, the convenience and the rapidness are realized, the test efficiency of the liquid crystal display drive plate is effectively improved, the test accuracy is improved, the yield of products is improved, the test efficiency is greatly improved, the production cost is reduced, and the practicability is strong.

The inventors of the present application found that: because the driving plate is thinner, after the test is finished, fingers need to extend into two sides of the positioning groove, the driving plate is buckled out, the driving plate is inconvenient to take out, in addition, the self-cleaning cannot be carried out on the contact point of the probe in the test process, and the test effect is easily influenced by dust;

for this purpose, a test device for a liquid crystal display driving panel is designed to optimize the above problems.

Disclosure of Invention

The utility model mainly aims to provide a liquid crystal display drive plate testing device, wherein clamping plates at two sides of a positioning groove are arranged to be used together with a second spring, the drive plate can be extruded and fixed after being placed in the positioning groove, the first spring and a top plate in the inner bottom of the positioning groove are used, the drive plate can be automatically jacked up after the positioning of the drive plate is relieved, the drive plate is conveniently taken out from the positioning groove, the use is more convenient, and an exhaust mechanism consisting of a sleeve, a piston, a connecting rod, a one-way air inlet valve, a one-way air outlet valve and an air pipe in a side-looking box body is matched with a nozzle arranged on a carrier plate to be used, so that wind dust removal can be carried out on a probe contact point on the drive plate when the drive plate is controlled to move towards one side of a probe, and the testing accuracy is ensured.

The aim of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a liquid crystal display drive plate testing arrangement, includes the test box, the top of test box is provided with the work platen, the cylinder is installed to the inboard of test box, branch is installed to the output of cylinder, the bar groove with branch complex is seted up at the top of work platen, the top of branch is fixed with the carrier plate, the constant head tank has been seted up to the intermediate position department at carrier plate top, first spring is installed to the tank bottom, the top of first spring is fixed with the roof, the expansion tank has all been seted up to the both sides of constant head tank, the inside of expansion tank all slides and is provided with the fixture block, all be provided with the second spring between the interior tip of fixture block and expansion tank, the fixture block is close to the draw-in groove has all been seted up to the bottom of roof one side, one side that the cylinder was kept away from at work platen top is provided with the probe, be provided with the nozzle on the carrier plate, the inside of test box is provided with exhaust mechanism.

Preferably: rubber blocks are fixed at four corners of the bottom of the test box body, and anti-skid patterns are arranged at the bottoms of the rubber blocks.

Preferably: reinforcing ribs are fixed between the outer sides of the support rods and the bottom of the carrier plate.

Preferably: the top of the clamping block, which is close to one side of the top plate, is an inclined surface, and a wear-resistant coating is coated on the inclined surface.

Preferably: the shape of roof is the rectangle, the width of roof is less than the interval between two sets of fixture blocks.

Preferably: the inner end of the telescopic slot is fixedly provided with a slide rod, the clamping block is provided with a slide slot, and the slide rod extends to the inside of the slide slot.

Preferably: the exhaust mechanism comprises a sleeve, a piston and a connecting rod, wherein the sleeve is fixed in the test box body, the piston is slidably arranged in the sleeve, the connecting rod is fixed at the end of the piston, the connecting rod is connected to the outer side of the supporting rod, a one-way air inlet valve is arranged at the bottom of the sleeve, an air pipe is arranged between the top of the sleeve and the nozzle, and a one-way exhaust valve is arranged at the bottom of the air pipe.

The beneficial effects of the utility model are as follows:

according to the testing device for the driving plate of the liquid crystal display, provided by the utility model, the clamping plates at the two sides of the positioning groove are arranged to be used together with the second springs, so that the driving plate can be extruded and fixed after being placed in the positioning groove, the first springs and the top plate in the inner bottom of the positioning groove are utilized to be used, the driving plate can be automatically jacked up after the positioning of the driving plate is released, and the driving plate is conveniently taken out and more conveniently used;

the exhaust mechanism comprising the sleeve, the piston, the connecting rod, the one-way air inlet valve, the one-way air outlet valve and the air pipe in the side view box body is matched with the nozzle arranged on the carrier plate for use, so that when the driving plate is controlled to move towards one side of the probe, wind power dust removal can be carried out on the probe contact point on the driving plate, and the accuracy of the test is ensured.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a cross-sectional view of a carrier plate of the present utility model;

FIG. 3 is a top view of a carrier plate according to the present utility model;

fig. 4 is a diagram of an exhaust mechanism of the present utility model.

In the figure: 1. a test box; 2. a work platen; 3. a cylinder; 4. a support rod; 5. a bar-shaped groove; 6. a carrier plate; 7. a positioning groove; 8. a first spring; 9. a top plate; 10. a telescopic slot; 11. a clamping block; 12. a second spring; 13. a clamping groove; 14. a probe; 15. an exhaust mechanism; 16. a slide rod; 17. a chute; 18. a sleeve; 19. a piston; 20. a connecting rod; 21. a nozzle; 22. a one-way air inlet valve; 23. a one-way exhaust valve; 24. and an air pipe.

Detailed Description

In order to make the technical solution of the present utility model more clear and clear to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.

Example 1

As shown in fig. 1-4, this embodiment provides a test device for a liquid crystal display driving plate, including a test box 1, the top of the test box 1 is provided with a working platform plate 2, a cylinder 3 is installed on the inner side of the test box 1, a supporting rod 4 is installed at the output end of the cylinder 3, a bar-shaped groove 5 matched with the supporting rod 4 is provided on the top of the working platform plate 2, a carrier plate 6 is fixed on the top of the supporting rod 4, a reinforcing rib is fixed between the outer side of the supporting rod 4 and the bottom of the carrier plate 6, a positioning groove 7 is provided at the middle position of the top of the carrier plate 6, a first spring 8 is installed at the bottom of the positioning groove 7, a top plate 9 is fixed on the top of the first spring 8, the top plate 9 is rectangular, the width of the top plate 9 is smaller than the distance between two groups of clamping blocks 11, telescopic grooves 10 are all provided on the two sides of the positioning groove 7, clamping blocks 11 are all slidably provided on the inner sides of the telescopic grooves 10, the clamping blocks 11 are inclined surfaces, a wear-resistant coating is coated on the top of the inclined surfaces, a second spring 12 is all provided between the clamping blocks 11 and the inner ends of the clamping blocks 10, a clamping block 11 is all provided with a reinforcing rib, a clamping block 13 is arranged on the bottom of one side of the clamping block 11, all sides of the side is close to the top 9, a side is all provided with a groove 13, and the top of the test box 1 is provided with a vent groove 1, and is provided with a vent groove 15, and the top of the test plate 1 is arranged on the side is provided with a side of the top plate 1, and is provided with a side of a test box, and is provided with a top of a test plate.

When the driving plate is tested, fingers pinch the two sides of the driving plate to be positioned at the top of the positioning groove 7, then press downwards, the bottom of the driving plate is combined with the top plate 9, then continuously move downwards, the driving plate is attached to the side edge of the clamping block 11, the clamping block 11 is extruded outwards, after the driving plate is extruded to the bottom of the clamping block 11, the second spring 12 is utilized to push the clamping block 11 to extrude and position the two sides of the driving plate, the two sides of the driving plate are clamped into the clamping groove 13, the fixing of the driving plate is completed, the starting cylinder 3 drives the driving plate to move towards one side of the probe 14, and when the driving plate is controlled to move, the gas in the exhaust mechanism 15 is discharged through the nozzle 21, dust is removed from the test point of the probe 14, and then the probe 14 is contacted with the test point, so that the electrical test is performed.

Example two

In this embodiment, as shown in fig. 1-4, a sliding rod 16 is fixed at the inner end of the telescopic slot 10, a sliding slot 17 is formed on the clamping block 11, and the sliding rod 16 extends into the sliding slot 17.

In the process of pressing the clamping block 11, the clamping block 11 slides along the length direction of the sliding rod 16, so that stable movement of the clamping block 11 is ensured.

In this embodiment, the exhaust mechanism 15 includes a sleeve 18, a piston 19 and a connecting rod 20, the sleeve 18 is fixed in the test box 1, the piston 19 is slidably disposed in the sleeve 18, the connecting rod 20 is fixed at the end of the piston 19, the connecting rod 20 is connected to the outer side of the strut 4, the unidirectional air inlet valve 22 is disposed at the bottom of the sleeve 18, the air pipe 24 is installed between the top of the sleeve 18 and the nozzle 21, and the unidirectional air outlet valve 23 is disposed at the bottom end of the air pipe 24.

When the cylinder 3 starts the sliding of the control strut 4, and the strut 4 moves, the piston 19 is controlled to slide towards the inside of the sleeve 18 by matching with the connecting rod 20, gas in the sleeve 18 is discharged through the gas pipe 24 and the nozzle 21 to remove dust, after the test is finished, the cylinder 3 is reset, the piston 19 is reset at the same time, and external gas enters the sleeve 18 through the one-way air inlet valve 22.

The above description is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.

Claims

1. A liquid crystal display drive plate testing device is characterized in that: including test box (1), the top of test box (1) is provided with work platen (2), cylinder (3) are installed to the inboard of test box (1), branch (4) are installed to the output of cylinder (3), bar groove (5) with branch (4) complex are seted up at the top of work platen (2), support plate (6) are fixed with at the top of branch (4), constant head tank (7) have been seted up in intermediate position department at support plate (6) top, first spring (8) are installed to constant head tank (7) bottom, telescopic tank (10) have all been seted up at the top of first spring (8) top of constant head tank (9), telescopic tank (10) are all slidingly provided with fixture block (11) in inside, all be provided with second spring (12) between fixture block (11) and telescopic tank (10) inner tip, fixture block (11) are close to the bottom of roof (9) one side and all have been seted up draw-in groove (13), work platen (2) top (3) are fixed with roof (9), probe (14) are kept away from on one side of the test box (1) is provided with on probe (14).

2. The liquid crystal display driving panel testing apparatus according to claim 1, wherein: rubber blocks are fixed at four corners of the bottom of the test box body (1), and anti-skid patterns are arranged at the bottoms of the rubber blocks.

3. The liquid crystal display driving panel testing apparatus according to claim 2, wherein: reinforcing ribs are fixed between the outer sides of the supporting rods (4) and the bottom of the carrier plate (6).

4. A liquid crystal display drive board testing device according to claim 3, wherein: the top of the clamping block (11) close to one side of the top plate (9) is an inclined plane, and a wear-resistant coating is coated on the inclined plane.

5. The device for testing a liquid crystal display panel according to claim 4, wherein: the top plate (9) is rectangular in shape, and the width of the top plate (9) is smaller than the distance between two groups of clamping blocks (11).

6. The device for testing a liquid crystal display panel according to claim 5, wherein: the telescopic device is characterized in that a sliding rod (16) is fixed at the inner end of the telescopic groove (10), a sliding groove (17) is formed in the clamping block (11), and the sliding rod (16) extends to the inside of the sliding groove (17).

7. The liquid crystal display driving panel testing apparatus according to claim 6, wherein: the exhaust mechanism (15) comprises a sleeve (18), a piston (19) and a connecting rod (20), wherein the sleeve (18) is fixed inside the test box body (1), the piston (19) is arranged in the sleeve (18) in a sliding mode, the connecting rod (20) is fixed at the end portion of the piston (19), the connecting rod (20) is connected to the outer side of the supporting rod (4), a one-way air inlet valve (22) is arranged at the bottom of the sleeve (18), an air pipe (24) is arranged between the top of the sleeve (18) and the nozzle (21), and a one-way exhaust valve (23) is arranged at the bottom end of the air pipe (24).