CN219320604U

CN219320604U - Positioning crimping table for testing liquid crystal display panel

Info

Publication number: CN219320604U
Application number: CN202223585887.4U
Authority: CN
Inventors: 赵卫星
Original assignee: Suzhou Wanrunda Precision Electromechanical Co ltd
Current assignee: Suzhou Wanrunda Precision Electromechanical Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-07-07
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a positioning crimping table for testing a liquid crystal display panel, which comprises a table body, wherein a CCD camera is arranged above the table body, and the output end of the CCD camera is connected to a PLC image processing system; further comprises: the first displacement mechanism is arranged in the table body and is in sliding fit with the table body, and the second displacement mechanism is arranged at the upper end of the first displacement mechanism and is in sliding fit with the first displacement mechanism; place the platform, its setting is in the top of second displacement mechanism, and place platform and second displacement mechanism and fix mutually, the both sides integrated into one piece of placing the platform up end has the fixed plate, the grip block is all installed to the inboard of fixed plate, and grip block and place platform sliding connection, this liquid crystal panel test crimping platform can carry out quick location according to liquid crystal panel's the position of putting, effectively improves efficiency of software testing.

Description

Positioning crimping table for testing liquid crystal display panel

Technical Field

The utility model relates to the technical field of liquid crystal panel test crimping stations, in particular to a positioning crimping station for liquid crystal panel test.

Background

The liquid crystal panel is a material for determining the brightness, contrast, color and visual angle of the liquid crystal display, the price trend of the liquid crystal panel directly influences the price of the liquid crystal display, the quality and technical quality of the liquid crystal panel relate to the overall performance of the liquid crystal display, and the quality of the liquid crystal panel needs to be ensured by crimping test after production.

For example, chinese patent publication No. CN104076217B entitled "an automatic pressure welding test device for liquid crystal display panel", which comprises a base plate, a vertical cylinder, a horizontal cylinder and a support frame for placing the liquid crystal display panel to be tested; the fixing parts of the support frame and the vertical cylinder are respectively and fixedly arranged on the plate surface of the base plate; the fixed part of the horizontal cylinder is fixedly arranged on the sliding part of the vertical cylinder through a fixing frame; the horizontal cylinder can move up and down along with the sliding part of the vertical cylinder in the vertical direction; the front end of the sliding part of the horizontal cylinder is provided with a pressure head, and the pressure head is provided with a probe for electrically connecting with a testing end on the liquid crystal panel to be tested; and a backlight is arranged on the base plate corresponding to the position of the liquid crystal panel to be tested.

Although the above prior art can realize the crimping test on the liquid crystal panel, the used crimping table can not be rapidly positioned according to the placement position of the liquid crystal panel, thereby affecting the testing efficiency, and therefore, the prior art does not meet the existing requirements, and a positioning crimping table for testing the liquid crystal panel is provided for the purpose.

Disclosure of Invention

The utility model aims to provide a positioning and pressing table for testing a liquid crystal panel, which is used for solving the problem that the liquid crystal panel testing and pressing table provided in the background art cannot be positioned quickly according to the placement position of the liquid crystal panel, so that the testing efficiency is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the positioning crimping table for testing the liquid crystal display panel comprises a table body, wherein a CCD camera is arranged above the table body, and the output end of the CCD camera is connected to a PLC image processing system; further comprises:

the first displacement mechanism is arranged in the table body and is in sliding fit with the table body, and the second displacement mechanism is arranged at the upper end of the first displacement mechanism and is in sliding fit with the first displacement mechanism;

place the platform, its setting is in the top of second displacement mechanism, and place platform and second displacement mechanism and fix mutually, the both sides integrated into one piece of placing the platform up end has the fixed plate, the grip block is all installed to the inboard of fixed plate, and grip block and place platform sliding connection.

Preferably, the first thread transmission rod is rotatably installed at the middle position inside the platform body, the first thread transmission rod penetrates through and extends to the other side of the first displacement mechanism, the first thread transmission rod penetrates through and is in threaded connection with an inner sliding block of the first displacement mechanism, a movable groove is formed in the upper portion inside the first displacement mechanism, the second thread transmission rod is rotatably installed inside the movable groove, a sliding block is installed on the outer portion of the second thread transmission rod, the sliding block is in threaded connection with the second thread transmission rod, the upper end of the sliding block is fixed with the second displacement mechanism, a servo motor is fixedly arranged on one side of the platform body and the rear end of the first displacement mechanism, and an output shaft of the servo motor is fixed with the first thread transmission rod and the second thread transmission rod.

Preferably, the both sides of platform body up end all are provided with first guide runner, all fixed first guide block that is provided with around the first displacement mechanism bottom, and first guide runner and first guide block sliding connection, the both sides of first displacement mechanism all are provided with the second guide runner, the both sides of second displacement mechanism all are provided with the limiting plate, the inboard of limiting plate is all fixed and is equipped with the second guide block, and second guide block and second guide runner sliding connection.

Preferably, electric push rods are arranged between the placing table and the fixing plate, and the movable ends of the electric push rods are fixed with the clamping plates through screws.

Preferably, the pressure sensor is installed in the clamping plate, the output end of the pressure sensor is connected with the singlechip, and the output end of the singlechip is electrically connected with the input end of the electric push rod.

Preferably, four corners of the bottom of the table body are provided with adjusting bases, screws are arranged in the adjusting bases and are in threaded fit with the adjusting bases, and the upper ends of the screws are fixed with the table body.

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

1. according to the utility model, the CCD camera is arranged above the crimping table, after the liquid crystal panel is placed in the placing table for fixing, the CCD camera transmits the acquired liquid crystal panel image to the PLC image processing system, the offset position and angle are calculated through image processing positioning software, and then the offset position and angle are fed back to the external displacement mechanism, the output shaft of the servo motor outside the table can drive the first threaded transmission rod to rotate, the rotation motion is converted into linear motion under the cooperation of the sliding block in the first displacement mechanism, the transverse displacement adjustment of the liquid crystal panel is realized, the output shaft of the servo motor on one side of the first displacement mechanism drives the second threaded transmission rod to rotate, the second displacement mechanism is simultaneously made to realize the longitudinal movement, the position correction function of the liquid crystal panel is completed under the cooperation of the first displacement mechanism and the second displacement mechanism, the accurate detection is realized, the detection quality is ensured, and the test efficiency is effectively improved.

2. According to the utility model, the placing table is arranged, the movable end of the electric push rod drives the clamping plate to synchronously move inwards after the liquid crystal panel is placed above the placing table until the liquid crystal panel is clamped, the pressure sensor is arranged in the inner wall of the clamping plate, the pressure sensor is preferentially contacted with the liquid crystal panel in the moving process, the pressure sensor detects the pressure value along with the continuous improvement of the pressure after the clamping, and the electric push rod stops running through the singlechip after the pressure value reaches the set value, so that the electric push rod is fixed at the position.

3. According to the utility model, the adjusting bases are arranged at the four corners of the bottom of the table body, the inclination of the crimping table is easy to be caused by the unevenness of the ground of the test environment, so that errors are caused to the test result, the local height of the table body can be adjusted by rotating the adjusting bases, and the liquid crystal panel is kept vertical to the probe when the liquid crystal panel is contacted with the probe, so that the test accuracy is ensured.

Drawings

FIG. 1 is an overall perspective view of the present utility model;

FIG. 2 is a perspective view of a displacement mechanism according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the present utility model;

fig. 4 is an enlarged view of a portion of the area a of fig. 2 in accordance with the present utility model.

In the figure: 1. a table body; 2. a first threaded drive rod; 3. a servo motor; 4. a first displacement mechanism; 5. a movable groove; 6. a second displacement mechanism; 7. a CCD camera; 8. a placement table; 9. a fixing plate; 10. a clamping plate; 11. an electric push rod; 12. a pressure sensor; 13. a second threaded drive rod; 14. a sliding block; 15. adjusting the base; 16. a screw; 17. a first guide chute; 18. a first guide block; 19. a limiting plate; 20. a second guide block; 21. and a second guiding chute.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the positioning and pressing bench for testing the liquid crystal panel comprises a bench body 1, wherein a CCD camera 7 is arranged above the bench body 1, and the output end of the CCD camera 7 is connected to a PLC image processing system; further comprises:

the first displacement mechanism 4 is arranged in the table body 1, the first displacement mechanism 4 is in sliding fit with the table body 1, the second displacement mechanism 6 is arranged at the upper end of the first displacement mechanism 4, and the second displacement mechanism 6 is in sliding fit with the first displacement mechanism 4;

placing table 8, it sets up in the top of second displacement mechanism 6, and places table 8 and second displacement mechanism 6 looks fixed, and the both sides integrated into one piece of placing table 8 up end has fixed plate 9, and grip block 10 is all installed to the inboard of fixed plate 9, and grip block 10 and place table 8 sliding connection.

When the liquid crystal display panel testing device is used, a liquid crystal display panel is placed in the placing table 8, the clamping plate 10 can fix the liquid crystal display panel, the CCD camera 7 and the PLC image processing system can position the liquid crystal display panel, the liquid crystal display panel is transversely and longitudinally moved through the first displacement mechanism 4 and the second displacement mechanism 6, deviation correction of the position is achieved, then the pressure head above the liquid crystal display panel is driven to descend under the action of the air cylinder, the probe is contacted with the testing end on the liquid crystal display panel to be tested, electric performance testing, flicker degree detection and phenomena such as bright spots, dark spots, bright lines, speckles and the like are achieved, and whether the liquid crystal display panel has the bright spots, the dark spots, the speckles and the like can be observed and checked.

Referring to fig. 2 and 3, a first threaded transmission rod 2 is rotatably installed at a middle position inside the platform body 1, the first threaded transmission rod 2 penetrates through and extends to the other side of the first displacement mechanism 4, the first threaded transmission rod 2 is in threaded connection with an inner sliding block of the first displacement mechanism 4, a movable groove 5 is formed above the inside of the first displacement mechanism 4, a second threaded transmission rod 13 is rotatably installed inside the movable groove 5, a sliding block 14 is installed outside the second threaded transmission rod 13, the sliding block 14 is in threaded connection with the second threaded transmission rod 13, the upper end of the sliding block 14 is fixed with the second displacement mechanism 6, a servo motor 3 is fixedly arranged at one side of the platform body 1 and the rear end of the first displacement mechanism 4, an output shaft of the servo motor 3 is fixed with the first threaded transmission rod 2 and the second threaded transmission rod 13, and a position correcting function of a liquid crystal panel is completed under the cooperation of the first displacement mechanism 4 and the second displacement mechanism 6, and accurate detection is further achieved.

Referring to fig. 2 and 4, the two sides of the upper end surface of the table body 1 are respectively provided with a first guide chute 17, the front and rear sides of the bottom of the first displacement mechanism 4 are respectively fixedly provided with a first guide block 18, the first guide chute 17 is slidably connected with the first guide blocks 18, the two sides of the first displacement mechanism 4 are respectively provided with a second guide chute 21, the two sides of the second displacement mechanism 6 are respectively provided with a limiting plate 19, the inner sides of the limiting plates 19 are respectively fixedly provided with a second guide block 20, and the second guide blocks 20 are slidably connected with the second guide chute 21, so that the stability in the moving process is improved.

Referring to fig. 1 and 3, an electric push rod 11 is installed between the placement table 8 and the fixing plate 9, and a movable end of the electric push rod 11 is fixed with the clamping plate 10 by screws, so that the electric push rod 11 is used for realizing clamping and fixing of the liquid crystal panel.

Referring to fig. 1 and 3, the pressure sensor 12 is installed inside the clamping plate 10, the output end of the pressure sensor 12 is connected with a single-chip microcomputer, the output end of the single-chip microcomputer is electrically connected with the input end of the electric push rod 11, and damage to the liquid crystal panel is avoided on the premise of ensuring the clamping firmness.

Referring to fig. 3, four corners of the bottom of the platform body 1 are provided with adjusting bases 15, screws 16 are mounted in the adjusting bases 15, the screws 16 are in threaded fit with the adjusting bases 15, the upper ends of the screws 16 are fixed with the platform body 1, and when the liquid crystal panel is in contact with the probe, the liquid crystal panel is kept vertical to the probe, so that guarantee is provided for testing accuracy.

Working principle: when the liquid crystal display device is used, after the liquid crystal display panel is placed above the placing table 8, the movable end of the electric push rod 11 drives the clamping plate 10 to synchronously move towards the inner side until the liquid crystal display panel is clamped, the pressure sensor 12 is preferentially contacted with the liquid crystal display panel in the moving process, the pressure sensor 12 continuously improves along with pressure after the clamping, the pressure sensor 12 detects the pressure value, the electric push rod 11 is stopped to operate through the singlechip after the pressure value reaches a set value, the fixing at the position is realized, the liquid crystal display panel is placed in the placing table 8 to be fixed, the CCD camera 7 transmits the acquired liquid crystal display panel image to the PLC image processing system, the offset position and the angle are calculated through image processing positioning software, and then the offset position and the angle are fed back to the external displacement mechanism, the output shaft of the external servo motor 3 of the table can drive the first threaded transmission rod 2 to rotate, the rotary motion is converted into linear motion under the cooperation with the sliding block in the first displacement mechanism 4, the transverse displacement adjustment of the liquid crystal display panel is realized, the output shaft of the servo motor 3 at one side of the first displacement mechanism 4 drives the second threaded transmission rod 13 to rotate, the second displacement mechanism 6 is likewise realized to longitudinally move, the liquid crystal display panel is longitudinally, and the liquid crystal display panel is adjusted to be matched with the second displacement mechanism 6, and the position of the liquid crystal display panel is rectified.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The positioning and pressure welding table for testing the liquid crystal display panel comprises a table body (1), wherein a CCD camera (7) is arranged above the table body (1), and the output end of the CCD camera (7) is connected to a PLC image processing system;

the method is characterized in that: further comprises:

the first displacement mechanism (4) is arranged in the table body (1), the first displacement mechanism (4) is in sliding fit with the table body (1), the second displacement mechanism (6) is arranged at the upper end of the first displacement mechanism (4), and the second displacement mechanism (6) is in sliding fit with the first displacement mechanism (4);

place platform (8), it sets up the top of second displacement mechanism (6), and place platform (8) and second displacement mechanism (6) mutually fixed, the both sides integrated into one piece of placing platform (8) up end has fixed plate (9), grip block (10) are all installed to the inboard of fixed plate (9), and grip block (10) and place platform (8) sliding connection.

2. The positioning and crimping station for testing a liquid crystal panel according to claim 1, wherein: the novel movable table is characterized in that a first threaded transmission rod (2) is rotatably arranged at the middle position inside the table body (1), the first threaded transmission rod (2) penetrates through and extends to the other side of the first displacement mechanism (4), the first threaded transmission rod (2) penetrates through and is in threaded connection with an inner sliding block of the first displacement mechanism (4), a movable groove (5) is formed in the inner side of the first displacement mechanism (4), a second threaded transmission rod (13) is rotatably arranged in the movable groove (5), a sliding block (14) is arranged outside the second threaded transmission rod (13), the sliding block (14) is in threaded connection with the second threaded transmission rod (13), the upper end of the sliding block (14) is fixed with the second displacement mechanism (6), one side of the table body (1) and the rear end of the first displacement mechanism (4) are fixedly provided with a servo motor (3), and an output shaft of the servo motor (3) is fixed with the first threaded transmission rod (2) and the second threaded transmission rod (13).

3. The positioning and crimping station for testing a liquid crystal panel according to claim 1, wherein: the novel movable table is characterized in that first guide sliding grooves (17) are formed in two sides of the upper end face of the table body (1), first guide blocks (18) are fixedly arranged on the front side and the rear side of the bottom of the first displacement mechanism (4), the first guide sliding grooves (17) are slidably connected with the first guide blocks (18), second guide sliding grooves (21) are formed in two sides of the first displacement mechanism (4), limiting plates (19) are arranged on two sides of the second displacement mechanism (6), second guide blocks (20) are fixedly arranged on the inner sides of the limiting plates (19), and the second guide blocks (20) are slidably connected with the second guide sliding grooves (21).

4. The positioning and crimping station for testing a liquid crystal panel according to claim 1, wherein: electric push rods (11) are arranged between the placing table (8) and the fixing plate (9), and movable ends of the electric push rods (11) are fixed with the clamping plates (10) through screws.

5. The positioning and crimping station for testing a liquid crystal panel according to claim 4, wherein: the pressure sensor (12) is installed in the clamping plate (10), the output end of the pressure sensor (12) is connected with the singlechip, and the output end of the singlechip is electrically connected with the input end of the electric push rod (11).

6. The positioning and crimping station for testing a liquid crystal panel according to claim 1, wherein: four corners department of stage body (1) bottom all is provided with adjusts base (15), the internally mounted of adjusting base (15) has screw rod (16), screw rod (16) and adjust base (15) screw thread fit, and the upper end of screw rod (16) is fixed mutually with stage body (1).