CN211627224U

CN211627224U - LED is test assembly for LCD screen

Info

Publication number: CN211627224U
Application number: CN202020276345.0U
Authority: CN
Inventors: 高可威; 张建伟; 朱峰
Original assignee: Chuzhou Ailuowei Electronic Technology Co ltd
Current assignee: Chuzhou Ailuowei Electronic Technology Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-10-02
Anticipated expiration: 2030-03-06

Abstract

The utility model relates to a LCD screen pressure test equipment technical field, concretely relates to LED is test component for LCD screen, including detecting seat, flange seat, positioning seat, constant head tank, pressure sensor, briquetting, test bump, drive arrangement includes dead lever, rotor arm, cylinder, connecting piece, minor axis, waist type groove. The utility model has the advantages that: through the cylinder action on the drive arrangement, the drive rotor arm rotates around dead lever pin joint department, make the briquetting move down, and then make the test cam press the LED LCD screen of placing in the constant head tank, gather pressure data through pressure sensor, and transmit to outside computer equipment, and then the tolerance degree data of analysis LED LCD screen, moreover, the steam generator is simple in structure, and is easy and simple to handle, also can obtain assurance to a certain extent on the measuring accuracy simultaneously, be fit for middle-size and small-size enterprise to resist the LED LCD screen that the pressure requirement is not high and carry out pressure test, and the cost pressure of enterprise has been alleviated.

Description

LED is test assembly for LCD screen

Technical Field

The utility model relates to a LCD screen pressure test equipment technical field, concretely relates to LED is test assembly for LCD screen.

Background

When the LED liquid crystal screen is subjected to factory inspection, the pressure test link can be generally passed, namely, the pressure is generated on the screen of the LED liquid crystal screen through the pressure equipment, and whether the pressure resistance of the LED liquid crystal screen is judged by detecting whether the screen of the LED liquid crystal screen generates pressure damage or not, the existing pressure test equipment for the LED liquid crystal screen is complex in general structure and expensive in manufacturing cost, and when the pressure test is carried out on the LED liquid crystal screen with small pressure resistance requirements (within the range of the pressure resistance strength), the problem of cost increase caused by the use of the existing pressure test equipment is solved to a certain extent, so that the pressure test device for the LED liquid crystal screen is suitable for small and medium-sized enterprises to produce and detect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that exists among the prior art, provide a LED is test assembly for LCD screen, it can realize providing simple structure, the lower LED LCD screen pressure test device of manufacturing cost.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

a test component for an LED liquid crystal screen comprises a test seat, wherein a flange seat is installed at one end of the test seat, a positioning seat is horizontally arranged at the top of the flange seat, a concave positioning groove is formed in the top surface of the positioning seat, a blind hole coaxial with the flange seat is formed in the inner bottom surface of the positioning groove, a pressure sensor with the top surface protruding out of the inner bottom surface of the positioning groove is installed in the blind hole, a pressing block is arranged right above the positioning seat, one surface of the pressing block facing the positioning seat is provided with a plurality of test salient points, the pressing block is driven by a driving device to vertically move, the driving device comprises a fixing rod vertically fixedly connected to the other end of the test seat, the top end of the fixing rod is pivoted with a rotating arm, one end of the rotating arm, which is far away from the fixing rod, is connected with, the middle defect part of the rotating arm straddles one end of the rotating arm close to the fixed rod, a short shaft horizontally penetrates through the middle defect part, and a waist-shaped groove for the insertion of the short shaft and the free sliding along the length direction of the rotating arm is formed in the corresponding rotating arm.

Furthermore, the top surface of the pressing block is vertically provided with a sliding column, the sliding column vertically penetrates through the rotating arm in a sliding fit mode, a nut is matched with a thread at one end, penetrating out of the rotating arm, of the sliding column, an elastic piece is arranged between the pressing block and the rotating arm, and the elastic piece abuts against the pressing block and drives the pressing block to be far away from the rotating arm.

Furthermore, the elastic part is a spring, the spring is sleeved on the sliding column, and two ends of the spring in the elastic direction respectively abut against the rotating arm and the pressing block.

Furthermore, a bushing is embedded on the rotating arm, and the bushing is sleeved on the sliding column in a sliding fit mode.

The utility model has the advantages that: through the cylinder action on the drive arrangement, the drive rotor arm rotates around dead lever pin joint department, make the briquetting move down, and then make the test cam press the LED LCD screen of placing in the constant head tank, gather pressure data through pressure sensor, and transmit to outside computer equipment, and then the tolerance degree data of analysis LED LCD screen, moreover, the steam generator is simple in structure, and is easy and simple to handle, also can obtain assurance to a certain extent on the measuring accuracy simultaneously, the LED LCD screen that is fit for middle-size and small-size enterprise and does not have high resistance to pressure requirement carries out pressure test, and the cost pressure of enterprise has been alleviated, set up the sliding column, the nut, the elastic component, close soon on the sliding column screw thread section through the nut, adjust the flexible volume of spring, and then adjust the pressure of test cam to LED LCD screen, also can avoid too big simultaneously to cause the crack risk to LED LCD screen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the three-dimensional structure of FIG. 1;

the reference numerals are explained below:

1-detection seat, 2-cylinder, 3-fixed rod, 4-rotating arm, 5-waist-shaped groove, 6-short shaft, 7-connecting piece, 8-sliding column, 9-nut, 10-spring, 11-positioning seat, 12-positioning groove, 13-pressing block, 14-pressure sensor, 15-flange seat and 16-test salient point.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, a testing assembly for an LED liquid crystal display includes a testing base 1, a flange base 15 is installed at one end of the testing base 1, a positioning base 11 is horizontally installed on the top of the flange base 15, a recessed positioning slot 12 is opened on the top surface of the positioning base 11, the positioning slot 12 is adapted to the external dimension of an external LED liquid crystal display, a blind hole coaxial with the flange base 15 is installed on the inner bottom surface of the positioning slot 12, a pressure sensor 14 whose top surface protrudes out of the inner bottom surface of the positioning slot 12 is installed in the blind hole, the pressure sensor 14 is a structure common in the prior art, and the working principle of the pressure sensor is disclosed through chinese patent No. CN201720216601.5, so that no description is given here, a pressing block 13 is installed directly above the positioning base 11, a plurality of testing protruding points 16 are installed on one side of the pressing block 13 facing the positioning base 11, and the, the driving device comprises a fixed rod 3 vertically fixedly connected to the other end of the detection seat 1, a rotating arm 4 is pivoted to the top end of the fixed rod 3, one end of the rotating arm 4, far away from the fixed rod 3, is connected with a pressing block 13, a cylinder 2 is vertically installed on the detection seat 1, a connecting piece 7 is connected to the cylinder 2 in a driving mode, the outline of the connecting piece 7 is approximately U-shaped, a middle defect part of the connecting piece is spanned on one end, close to the fixed rod 3, of the rotating arm 4, a short shaft 6 horizontally penetrates through the rotating arm 4, a waist-shaped groove 5 which is correspondingly formed in the rotating arm 4 and can freely slide along the length direction of the rotating arm 4 is correspondingly formed in the rotating arm 4, a sliding column 8 is vertically arranged on the top surface of the pressing block 13, the sliding column 8 vertically penetrates through the rotating arm 4 in a sliding mode, a nut 9 is matched with threads at one end, penetrating through the rotating arm 4, of the rotating arm 4, a spring 10 is, The spring 10 abuts against the pressing block 13 and drives the pressing block 13 to be far away from the rotating arm 4, furthermore, a bushing (not shown in the figure) is embedded on the rotating arm 4, the bushing is sleeved on the sliding column 8 in a sliding mode, mechanical abrasion loss of the sliding column 8 and the rotating arm 4 is reduced through the bushing, and the service life is prolonged.

The utility model discloses when using: the LED liquid crystal screen is placed in the locating groove in a lying mode, the screen faces upwards, the top surface of the pressure sensor abuts against the back surface of the LED liquid crystal screen, pressure borne by the top surface of the LED liquid crystal screen is detected through the pressure sensor and is conveyed to external computer equipment to be displayed through the prior art, the air cylinder is started, the air cylinder rod retracts and slides in the waist-shaped groove through the short shaft, the rotating arm is pulled to rotate around the hinged position with the fixing rod, the pressing block moves downwards, the testing convex points abut against the screen of the LED liquid crystal screen, the testing convex points continuously press the screen of the LED liquid crystal screen along with continuous action of the air cylinder, in the process, the pressure sensor continuously collects pressure data of the testing convex points on the LED liquid crystal screen and feeds the pressure data back to the computer equipment, synchronously, the spring buffers the pressing block, and avoids damage to the screen caused by instantaneous contact between the pressing block and the LED liquid crystal screen, when the pressure data reach the test range, the cylinder stops acting and resets, so that the pressing block is far away from the LED liquid crystal screen, and at the moment, whether cracks, cracks and white points are generated on the surface of the screen of the LED liquid crystal screen or not is visually detected by an external device, so that whether the pressure resistance of the LED liquid crystal screen reaches the standard or not is judged.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The testing component for the LED liquid crystal screen is characterized by comprising a testing seat (1), wherein a flange seat (15) is installed at one end of the testing seat (1), a positioning seat (11) is horizontally arranged at the top of the flange seat (15), a sunken positioning groove (12) is formed in the top surface of the positioning seat (11), a blind hole coaxial with the flange seat (15) is formed in the bottom surface of the positioning groove (12), a pressure sensor (14) with the top surface protruding out of the inner bottom surface of the positioning groove (12) is installed in the blind hole, a pressing block (13) is arranged right above the positioning seat (11), a plurality of testing salient points (16) are arranged on the pressing block (13) towards the positioning seat (11), the pressing block (13) is driven to vertically move by a driving device, the driving device comprises a fixing rod (3) vertically fixedly connected to the other end of the testing seat (1), and a rotating arm (4) is pivoted to, dead lever (3) one end is kept away from in rotor arm (4) and briquetting (13) are connected, vertical installation cylinder (2) on detecting seat (1), the drive is connected with connecting piece (7) on cylinder (2), connecting piece (7) outline roughly becomes the U-shaped, and the defect site is ridden and is strideed in its middle of rotor arm (4) are close to dead lever (3) and serve, and minor axis (6) are worn to be equipped with to its level, correspond rotor arm (4) are gone up to open and are supplied minor axis (6) to insert and close and can follow rotor arm (4) length direction freely gliding waist type groove (5).

2. The LED liquid crystal screen testing assembly according to claim 1, wherein a sliding column (8) is vertically arranged on the top surface of the pressing block (13), the sliding column (8) vertically penetrates through the rotating arm (4) in a sliding fit mode, a nut (9) is matched with a thread at one end of the sliding column, which penetrates out of the rotating arm (4), an elastic piece is arranged between the pressing block (13) and the rotating arm (4), and the elastic piece abuts against the pressing block (13) and drives the pressing block (13) to be away from the rotating arm (4).

3. The LED liquid crystal screen testing assembly according to claim 2, wherein the elastic member is a spring (10), the spring (10) is sleeved on the sliding column (8), and two ends of the spring in the elastic direction respectively abut against the rotating arm (4) and the pressing block (13).

4. The LED liquid crystal screen testing assembly according to claim 2, wherein a bushing is embedded on the rotating arm (4), and the bushing is slidably sleeved on the sliding column (8).