CN211375244U

CN211375244U - Bad detection device for liquid crystal display screen

Info

Publication number: CN211375244U
Application number: CN202020231839.7U
Authority: CN
Inventors: 裴少华
Original assignee: Lanzhou Xuebo Electronic New Technology Co ltd
Current assignee: Lanzhou Xuebo Electronic New Technology Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-08-28
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a liquid crystal display's bad detection device, include the fixing base, examine test table and grip block, the exterior wall bottom welding of fixing base has annular seat, and threaded connection has fixing bolt on the annular seat, circular recess has been seted up to the fixing base upper surface, and the inside of circular recess has placed and has examined test table, it has the ring gear to examine the top welding that lies in the fixing base on the test table exterior wall. The utility model discloses in, this liquid crystal display's bad detection device opens servo motor and drives the toothed disc and rotate, and the toothed disc drives the ring gear and rotates, through the ring gear alright examine test table rotation with driving for fix the liquid crystal display who examines test table and go on can 360 degrees rotations, convenient to use person can carry out all-round multi-angle observation to examining test table top centre gripping fixed liquid crystal display and detect, need not manual upset liquid crystal display and detect, improves its detection efficiency, reduces intensity of labour.

Description

Bad detection device for liquid crystal display screen

Technical Field

The utility model relates to a liquid crystal display detects technical field, especially relates to a liquid crystal display's bad detection device.

Background

The liquid crystal display is an active matrix liquid crystal display driven by Thin Film Transistor (TFT), and mainly uses current to stimulate liquid crystal molecules to generate points, lines and surfaces to match with a back lamp tube to form a picture. IPS, TFT, SLCD all belong to LCD's subclass, LCD's theory of operation is: under the action of electric field, the change of the arrangement direction of liquid crystal molecules is utilized to change (modulate) the light transmittance of an external light source, so that electro-optical conversion is completed, and color reproduction of time domain and space domain is completed through different excitations of R, G, B tricolor signals and through red, green and blue tricolor filter films.

At present current liquid crystal display's bad detection device, general single setting detection table is used for placing liquid crystal display, and the manual work detects the mark to the bad position in liquid crystal display surface, at the in-process that detects, needs artifical upset liquid crystal display to increase artificial intensity of labour, reduced detection efficiency, so can not satisfy user's demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a bad detection device of a liquid crystal display screen.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a bad detection device of a liquid crystal display screen comprises a fixed seat, a detection table and a clamping plate;

the bottom of the outer surface wall of the fixed seat is welded with an annular seat, and the annular seat is in threaded connection with a fixed bolt;

the detection device comprises a fixed seat, a detection table, a first slide block, a servo motor, a gear disc and a gear ring, wherein a circular groove is formed in the upper surface of the fixed seat, the detection table is placed inside the circular groove, the first slide block is welded at the bottom of the detection table and is in sliding connection with a first sliding groove formed in a bottom plate of the inner wall of the circular groove, the gear ring is welded on the outer surface wall of the detection table above the fixed seat, the servo motor is embedded and installed on the outer side of the circular groove in the upper surface of the fixed seat, the gear disc is welded on an output;

the detection table is characterized in that a second sliding groove is formed in the upper surface of the detection table, a clamping plate is arranged on the upper surface of the detection table and is connected with the second sliding groove in a sliding mode through a second sliding block, an electric push rod is fixed on the upper surface of the fixing base through a bolt, and the telescopic end of the electric push rod is fixed with the clamping plate in a welding mode.

Preferably, the clamping plates are arranged in two, the two clamping plates are symmetrical to each other about a vertical central line of the second sliding groove, and a liquid crystal display screen is arranged between the two clamping plates.

Preferably, the number of the gear discs is three, the three gear discs are distributed annularly, and the distance between every two adjacent gear discs is equal.

Preferably, the electric push rods are provided with two electric push rods, and the telescopic ends of the two electric push rods are distributed on the two clamping plates and are fixedly bonded with the two clamping plates.

Preferably, rubber pads are bonded on the opposite surfaces of the two clamping plates.

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

1. the utility model discloses in, this liquid crystal display's bad detection device, the welding has the annular seat on the bottom exterior wall of fixing base, and threaded connection has fixing bolt on the annular seat, and when this liquid crystal display's bad detection device used, can directly use on the detection table through the fixing bolt height on the annular seat, made its convenience fixed very of installation.

2. The utility model discloses in, this liquid crystal display's bad detection device, a examine test table for fixed liquid crystal display is rotatable structure, in the in-process that uses, open servo motor, servo motor drives the toothed disc and rotates, the toothed disc drives the ring gear and rotates, through the ring gear alright with drive examine test table and rotate, make fix the liquid crystal display who examines on the test table and carry out all-round multi-angle observation detection to examining the fixed liquid crystal display of centre gripping on the test table, it detects to need not manual upset liquid crystal display, improve its detection efficiency, and the labor intensity is reduced.

3. The utility model discloses in, this liquid crystal display's bad detection device adopts electric putter to transfer two grip blocks relative motion and carries out the centre gripping to liquid crystal display fixed, can satisfy different thickness and the liquid crystal display of size and carry out the centre gripping fixed, improves its practicality to it has the rubber pad to bond on the grip block, can prevent that the clamping-force from excessively causing the display screen damage.

Drawings

Fig. 1 is a schematic structural view of a defect detection device for a liquid crystal display panel according to the present invention;

fig. 2 is a schematic top view of the defect detection device for a liquid crystal display panel according to the present invention;

fig. 3 is the utility model provides a structural schematic diagram of the fixing base of a bad detection device of liquid crystal display.

Illustration of the drawings:

1. a fixed seat; 2. a detection table; 3. a first slider; 4. a first chute; 5. a circular groove; 6. fixing the bolt; 7. a servo motor; 8. a gear plate; 9. a ring gear; 10. a clamping plate; 11. a liquid crystal display screen; 12. a second chute; 13. a second slider; 14. an electric push rod; 15. a rubber pad; 16. an annular seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a defect detecting apparatus for a liquid crystal display includes a fixing base 1, a detecting table 2 and a clamping plate 10;

an annular seat 16 is welded at the bottom of the outer surface wall of the fixed seat 1, and a fixed bolt 6 is connected to the annular seat 16 in a threaded manner;

the upper surface of the fixed seat 1 is provided with a circular groove 5, a detection table 2 is placed inside the circular groove 5, the bottom of the detection table 2 is welded with a first slide block 3, the first slide block 3 is in sliding connection with a first slide groove 4 formed in a bottom plate on the inner wall of the circular groove 5, a gear ring 9 is welded on the outer wall of the detection table 2 above the fixed seat 1, a servo motor 7 is embedded and installed on the outer side of the circular groove 5 on the upper surface of the fixed seat 1, a gear disc 8 is welded on an output shaft of the servo motor 7, and the gear disc 8 is in gear meshing connection with the gear ring 9;

second spout 12 has been seted up to the upper surface of examining test table 2, examines the upper surface of test table 2 and is provided with grip block 10, and grip block 10 through

second slider

13 and 12 sliding connection of second spout, and the surface bolt is fixed with electric putter 14 on the fixing base 1, and electric putter 14's flexible end and grip block 10 welded fastening.

The two clamping plates 10 are arranged, the two clamping plates 10 are symmetrical to each other about a vertical center line of the second sliding chute 12, and the liquid crystal display screen 11 is arranged between the two clamping plates 10.

The gear plates 8 are arranged in three, the three gear plates 8 are distributed annularly, and the space between every two adjacent gear plates 8 is equal.

The electric push rods 14 are arranged in two, the telescopic ends of the two electric push rods 14 are fixedly bonded to the two clamping plates 10, and rubber pads 15 are bonded to the opposite surfaces of the two clamping plates 10.

The working principle is as follows: this liquid crystal display's during bad detection device uses, at first place liquid crystal display 11 between two grip blocks 10, open electric putter 14, electric putter 14 drives two grip blocks 10 relative motion and carries out the centre gripping to liquid crystal display 11 fixed, alright detect liquid crystal display 11 this moment, the in-process of detection, servo motor 7 can be opened, servo motor 7 drives toothed disc 8 and rotates, toothed disc 8 drives ring gear 9 and rotates, through ring gear 9 alright rotate with driving detection platform 2, make the liquid crystal display 11 of fixing on detecting platform 2 go on can 360 degrees rotations, convenient to use person can carry out all-round multi-angle observation detection to detecting platform 2 on the fixed liquid crystal display 11 of centre gripping, it detects to need not manual upset liquid crystal display 11, the detection efficiency is improved, and the labor intensity is reduced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A device for detecting the defect of a liquid crystal display screen is characterized by comprising a fixed seat (1), a detection table (2) and a clamping plate (10);

an annular seat (16) is welded at the bottom of the outer surface wall of the fixed seat (1), and a fixed bolt (6) is connected to the annular seat (16) in a threaded manner;

the detection device is characterized in that a circular groove (5) is formed in the upper surface of the fixed seat (1), the detection table (2) is placed in the circular groove (5), a first sliding block (3) is welded at the bottom of the detection table (2), the first sliding block (3) is in sliding connection with a first sliding groove (4) formed in a bottom plate of the inner wall of the circular groove (5), a gear ring (9) is welded on the outer wall of the detection table (2) above the fixed seat (1), a servo motor (7) is embedded and installed on the outer side of the circular groove (5) on the upper surface of the fixed seat (1), a gear disc (8) is welded on an output shaft of the servo motor (7), and the gear disc (8) is in gear meshing connection with the gear ring (9);

examine test table (2) upper surface and seted up second spout (12), the upper surface of examining test table (2) is provided with grip block (10), and grip block (10) through second slider (13) and second spout (12) sliding connection, fixing base (1) upper surface bolt fastening has electric putter (14), and electric putter (14) flexible end and grip block (10) welded fastening.

2. The device for detecting the defect of the liquid crystal display screen according to claim 1, wherein the number of the clamping plates (10) is two, the two clamping plates (10) are symmetrical with each other about a vertical center line of the second sliding chute (12), and the liquid crystal display screen (11) is arranged between the two clamping plates (10).

3. The device for detecting the defect of the liquid crystal display screen according to claim 1, wherein the number of the gear disks (8) is three, the three gear disks (8) are distributed annularly, and the distance between two adjacent gear disks (8) is equal.

4. The device for detecting the defect of the liquid crystal display screen according to claim 1, wherein the number of the electric push rods (14) is two, and the telescopic ends of the two electric push rods (14) are distributed on the two clamping plates (10) for bonding and fixing.

5. The device for detecting defects of a liquid crystal display screen according to claim 1, wherein rubber pads (15) are bonded to the opposite surfaces of the two holding plates (10).