CN210626819U - Liquid crystal screen inspection device - Google Patents
Liquid crystal screen inspection device Download PDFInfo
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- CN210626819U CN210626819U CN201921819397.1U CN201921819397U CN210626819U CN 210626819 U CN210626819 U CN 210626819U CN 201921819397 U CN201921819397 U CN 201921819397U CN 210626819 U CN210626819 U CN 210626819U
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Abstract
The application relates to the field of display panel detection and discloses a liquid crystal screen inspection device. The method comprises the following steps: the overturning platform can be installed on the base and overturned around the first axis; the first driving mechanism is arranged on the base and used for driving the overturning platform to overturn by a preset angle around the first axis; the adsorption unit is used for adsorbing the liquid crystal screen, and an adsorption plane of the adsorption unit is parallel to the first axis; the lifting unit reciprocates along a first direction, the first direction is vertical to the adsorption plane, a plurality of ejector pins for supporting the liquid crystal screen are arranged on a lifting platform of the lifting unit, when the lifting platform is in jacking extension, the free ends of the ejector pins are positioned at one end of the adsorption plane, which is far away from the overturning platform, and when the lifting platform is in contraction, the free ends of the ejector pins are positioned at one end of the adsorption plane, which is close to the overturning platform; the correcting unit is located on the lifting unit and used for correcting the liquid crystal screen located on the ejector pin. The liquid crystal screen inspection device can meet the requirement of inspecting liquid crystal screens of different sizes.
Description
Technical Field
The application relates to the field of display panel detection, in particular to a liquid crystal display screen inspection device.
Background
In the field of the current tft (thin Film transistor) liquid crystal panel production, the liquid crystal panel needs to be inspected to determine the abnormal point of the liquid crystal panel and provide a basis for determining the grade of the liquid crystal panel, and particularly in the field of advanced panel production, because the size change range of the liquid crystal panel is large, higher requirements are provided for the compactness of equipment and the positioning accuracy of rotation and correction, and the existing inspection equipment cannot meet the requirements for the advanced liquid crystal panel production inspection.
SUMMERY OF THE UTILITY MODEL
The application provides a LCD screen inspection device, can control the angle that the LCD screen overturns when the inspection, and through the lifting unit and the positioning accuracy of unit in order to improve the LCD screen of reforming to make this inspection device satisfy the requirement of the LCD screen of inspection unidimensional.
In order to achieve the above object, the present application provides a liquid crystal panel inspection apparatus comprising:
a base;
a flipping platform mounted to the base and being flippable about a first axis;
the first driving mechanism is arranged on the base and used for driving the overturning platform to overturn around the first axis by a preset angle;
the adsorption unit is used for adsorbing the liquid crystal screen, and an adsorption plane of the adsorption unit is parallel to the first axis;
the lifting unit reciprocates along a first direction, the first direction is vertical to an adsorption plane of the adsorption unit, a plurality of ejector pins for supporting a liquid crystal screen are arranged on a lifting platform of the lifting unit, when the lifting platform is in jacking extension, free ends of the ejector pins are located at one ends, deviating from the overturning platform, of the adsorption plane, and when the lifting platform is in contraction, the free ends of the ejector pins are located at one ends, close to the overturning platform, of the adsorption plane;
a correcting unit; the correcting unit is located on the lifting unit and used for correcting the liquid crystal screen located on the ejector pin.
The liquid crystal display inspection device is provided with a turnover platform which can be turned around a first axis and is arranged on a base; the first driving mechanism is arranged on the base and used for driving the overturning platform to overturn around the first axis by a preset angle; the adsorption plane for adsorbing the liquid crystal screen is parallel to the first axis; therefore, when the lifting unit reciprocates along a first direction vertical to an adsorption plane of the adsorption unit and is in a jacking state, free ends of a plurality of thimbles arranged on the lifting platform bear the liquid crystal screen transferred by the manipulator, the restoring unit carries out first restoring on the liquid crystal screen, when the lifting unit changes from the jacking state to a contraction state, the lifting platform moves towards one end close to the overturning platform, the free ends of the plurality of thimbles are positioned below the adsorption plane, and the liquid crystal screen is adsorbed by the adsorption plane after the first restoring so as to improve the adsorption precision and facilitate subsequent inspection; in addition, first actuating mechanism is according to the position at inspection personnel place, drive upset platform is to the direction upset preset angle at inspection personnel place, rotate with the adsorbed LCD screen on drive adsorption plane and the adsorption plane, thereby make the observation LCD screen that inspection personnel can be convenient, the back is accomplished in the inspection, lift platform risees the LCD screen that will inspect the completion and shifts the free end of thimble by the adsorption plane, the unit of reforming carries out the second reforming to this LCD screen, improve the positioning accuracy of LCD screen, thereby make the position of the LCD screen that the inspection was accomplished can be swift enter into next process, and can not damaged by the equipment that shifts at the in-process LCD screen that shifts.
Preferably, the reforming unit comprises four reforming blocks and a second driving mechanism for driving the four reforming blocks to move relatively or oppositely.
Preferably, the second driving mechanism comprises a first lead screw, a second lead screw, a first servo motor for driving the first lead screw, and a second servo motor for driving the second lead screw;
the first lead screw and the second lead screw are respectively provided with two correcting blocks, the first lead screw and the second lead screw are arranged in a crossed mode, the first lead screw is used for driving the threads of the two correcting blocks arranged on the first lead screw to rotate in opposite directions, and the second lead screw is used for driving the threads of the two correcting blocks arranged on the second lead screw to rotate in opposite directions.
Preferably, the first lead screw and the second lead screw are perpendicular to each other.
Preferably, the reforming unit further comprises a guide mechanism;
the guide mechanism comprises at least two first guide rods and a second guide rod, the extending direction of the first guide rods is the same as that of the first lead screw and penetrates through the correcting block arranged on the first lead screw, and the extending direction of the second guide rods is the same as that of the second lead screw and penetrates through the correcting block arranged on the second lead screw.
Preferably, the first driving mechanism comprises a driving motor, a speed reducer and an anti-over-rotation sensor;
the driving motor is connected with the speed reducer, the speed reducer is used for installing the base, one end of the support of the overturning platform is connected, and the over-rotation preventing sensor is arranged at the output end of the speed reducer or on the base and used for monitoring the overturning angle of the overturning platform.
Preferably, the overturning angle of the overturning platform is-75 degrees to +75 degrees.
Preferably, the lifting unit further comprises a plurality of lifting mechanisms located below the lifting platform;
the lifting mechanisms are arranged between the lifting platform and the overturning platform, and the correcting unit is located at the center of the lifting platform.
Preferably, the lifting unit further comprises a detection sensor for detecting whether the liquid crystal screen is placed on the thimble, and the detection sensor is electrically connected with the restoring unit.
Preferably, the suction unit further includes a plurality of suction cups and a vacuum generator connected to the plurality of suction cups;
the vacuum generator is arranged on the overturning platform, and the suckers deviate from one end of the overturning platform to form an adsorption plane for adsorbing the liquid crystal screen.
Drawings
Fig. 1 is a front view of a liquid crystal panel inspection apparatus according to an embodiment of the present application;
fig. 2 is a top view of an lcd panel inspection apparatus according to an embodiment of the present disclosure;
fig. 3 is a side view of an inspection apparatus for a liquid crystal panel according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an anti-over-rotation sensor of an lcd panel inspection apparatus according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a vacuum generator of an LCD panel inspection apparatus according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a suction cup of an LCD panel inspection device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a detection sensor of an lcd panel inspection apparatus according to an embodiment of the present application.
Icon: 10-a base; 20-overturning the platform; 30-a first drive mechanism; 31-a drive motor; 32-a reducer; 33-anti-over-rotation sensor; 40-an adsorption unit; 41-a vacuum generator; 42-a suction cup; 50-a lifting unit; 51-a lifting mechanism; 52-a lifting platform; 53-thimble; 54-detecting sensor; 60-a correcting unit; 61-a reforming block; 62-a first lead screw; 63-a second lead screw; 64-a first servo motor; 65-a second servomotor; 66-a first guide bar; 67-a second guide bar; 70-liquid crystal screen.
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.
Referring to fig. 1, an embodiment of the present application provides an lcd panel inspection apparatus, including:
a base 10;
a flipping platform 20 mounted to the base 10 to be flipped about a first axis;
a first driving mechanism 30 mounted on the base 10 for driving the tilting platform 20 to tilt a preset angle around the first axis;
an adsorption unit 40 for adsorbing the liquid crystal panel 70, wherein an adsorption plane of the adsorption unit 40 is parallel to the first axis;
the lifting unit 50 reciprocates along a first direction, and the first direction is perpendicular to the adsorption plane of the adsorption unit 40, wherein a plurality of ejector pins 53 for supporting the liquid crystal screen 70 are arranged on a lifting platform 52 of the lifting unit 50, when the lifting platform 52 is in a jacking state, the free ends of the ejector pins 53 are located at one end of the adsorption plane, which is far away from the turnover platform 20, and when the lifting platform 52 is in a contraction state, the free ends of the ejector pins 53 are located at one end of the adsorption plane, which is close to the turnover platform 20;
a normalizing unit 60; the correcting unit 60 is located on the lifting unit 50, and the correcting unit 60 is used for correcting the liquid crystal screen 70 located on the thimble 53.
In the lcd panel inspection apparatus of this embodiment, the tilting platform 20 is mounted on the base 10 to be tiltable around the first axis; a first driving mechanism 30 mounted on the base 10 for driving the tilting platform 20 to tilt a preset angle around the first axis; an adsorption plane on the adsorption unit 40 for adsorbing the liquid crystal screen 70 is parallel to the first axis; therefore, when the lifting unit 50 reciprocates along a first direction perpendicular to the adsorption plane of the adsorption unit 40 and the lifting unit 50 is in the top extension state, the free ends of the plurality of ejector pins 53 arranged on the lifting platform 52 bear the liquid crystal screen 70 transported by the manipulator, the restoring unit 60 restores the liquid crystal screen 70 for the first time, when the lifting unit 50 changes from the top extension state to the contraction state, the lifting platform 52 moves towards one end close to the turnover platform 20, the free ends of the plurality of ejector pins 53 are located below the adsorption plane, the liquid crystal screen 70 is adsorbed by the adsorption plane, at this time, the first driving mechanism 30 drives the turnover platform 20 to turn over for a preset angle towards the direction of the inspector according to the position of the inspector so as to drive the liquid crystal screen 70 to rotate, so that the inspector can conveniently observe the liquid crystal screen 70, and the liquid crystal screen 70 cannot fall off in the turnover process of the turnover platform 20, after the inspection is completed, the lifting platform 52 is lifted to transfer the inspected liquid crystal screen 70 to the free end of the thimble 53 through the adsorption plane, the correcting unit 60 performs second correction on the liquid crystal screen 70, the positioning precision of the liquid crystal screen 70 is improved, and therefore the position of the inspected liquid crystal screen 70 can enter the next procedure quickly, and the liquid crystal screen 70 cannot be damaged by transferred equipment in the transferring process.
As an alternative, referring to fig. 2, the reforming unit 60 includes four reforming blocks 61 and a second driving mechanism for driving the four reforming blocks 61 to move relatively or oppositely.
The second driving mechanism comprises four servo motors, each servo motor is connected with a lead screw, each lead screw is provided with a correcting block 61, and the four servo motors simultaneously drive the correcting blocks 61 on the four lead screws to move forwards and backwards.
In this embodiment, the second driving mechanism drives the four aligning blocks 61 to move relatively or oppositely, and when the thimble 53 on the lifting unit 50 transfers the inspected liquid crystal panel 70 from the adsorption plane, the four aligning blocks 61 move toward the liquid crystal panel 70 from four directions to clamp and align the liquid crystal panel 70.
As an alternative, the second driving mechanism includes a first lead screw 62, a second lead screw 63, a first servo motor 64 for driving the first lead screw 62, and a second servo motor 65 for driving the second lead screw 63;
the first lead screw 62 and the second lead screw 63 are respectively provided with two of the correcting blocks 61, the first lead screw 62 and the second lead screw 63 are arranged in a crossed manner, the first lead screw 62 is used for driving the two of the correcting blocks 61 arranged on the first lead screw to have opposite screw thread directions, and the second lead screw 63 is used for driving the two of the correcting blocks 61 arranged on the second lead screw 63 to have opposite screw thread directions.
After the liquid crystal panel 70 is completely restored, the restoring block 61 moves 25mm away from the liquid crystal panel 70.
The rotation direction of the first lead screw 62 near the first servomotor 64 is the same as the rotation direction of the second lead screw 63 near the second servomotor 65.
In this embodiment, the first servo motor 64 drives the first lead screw 62 to rotate, the second servo motor 65 drives the second lead screw 63 to rotate, and since the moving tracks of the two restoring blocks 61 on the first lead screw 62 are opposite to the rotation direction of the first lead screw 62, and the moving tracks of the two restoring blocks 61 on the second lead screw 63 are opposite to the rotation direction of the second lead screw 63, the moving directions of the restoring blocks 61 on the first lead screw 62 and the second lead screw 63 can be controlled by controlling the rotation directions of the output shafts of the first servo motor 64 and the second servo motor 65, so as to clamp and restore the liquid crystal screen 70 on the thimble 53.
As an alternative, the first lead screw 62 and the second lead screw 63 are perpendicular to each other.
In this embodiment, the first lead screw 62 and the second lead screw 63 are perpendicular to each other, so that when the four lead screws disposed on the first lead screw 62 and the second lead screw 63 clamp the liquid crystal panel 70, the distance that the liquid crystal panel 70 moves in each direction is the same, thereby improving the positioning accuracy of the liquid crystal panel 70.
As an alternative, the righting unit 60 further comprises a guide mechanism;
the guide mechanism comprises at least two first guide rods 66 and two second guide rods 67, the extending direction of the first guide rods 66 is the same as that of the first lead screw 62 and penetrates through the correcting block 61 arranged on the first lead screw 62, and the extending direction of the second guide rods 67 is the same as that of the second lead screw 63 and penetrates through the correcting block 61 arranged on the second lead screw 63.
In this embodiment, the extending direction of the at least two first guide rods 66 is the same as the extending direction of the first lead screw 62, the first guide rods 66 are parallel to the first lead screw 62, the first lead screw 62 passes through the two restoring blocks 61 arranged on the first lead screw 62, the second guide rods 67 are parallel to the second lead screw 63, and the second lead screw 63 passes through the two restoring blocks 61 arranged on the second lead screw 63, so that the movement tracks of the restoring blocks 61 arranged on the first lead screw 62 and the second lead screw 63 can be ensured, and the restoring accuracy is improved.
As an alternative, referring to fig. 1 and 4, the first driving mechanism 30 includes a driving motor 31, a decelerator 32, and an anti-over-rotation sensor 33;
the driving motor 31 is connected with the speed reducer 32, the speed reducer 32 is connected with one end of the support of the turnover platform 20, which is used for installing the base 10, and the over-rotation preventing sensor 33 is arranged at the output end of the speed reducer 32 or on the base 10 and used for monitoring the turnover angle of the turnover platform 20.
In this embodiment, the setting of the anti-rotation sensor 33 can prevent the overturning angle of the overturning platform 20 from being too large, so as to ensure that the liquid crystal screen 70 can be conveniently observed by the inspected person.
As an alternative, referring to fig. 3, the tilting platform 20 is tilted at an angle ranging from-75 ° to +75 °. So that the inspector can check the abnormal point of the liquid crystal panel 70 after the turnover and judge the grade.
As an optional way, the lifting unit 50 further includes a plurality of lifting mechanisms 51 located below the lifting platform 52; the plurality of lifting mechanisms 51 are disposed between the lifting platform 52 and the turning platform 20, and the correcting unit 60 is located at a central position of the lifting platform 52.
Wherein, the lifting mechanism 51 is a cylinder, or a servo motor drives a synchronous lifter.
The number of the lifting mechanisms 51 is preferably four.
In this embodiment, the restoring unit 60 is located at the center of the lifting platform 52, so as to facilitate installation of the driving mechanism and the restoring block 61 on the restoring unit 60, and the plurality of lifting mechanisms 51 work synchronously to ensure stable lifting of the lifting platform 52.
As an alternative, referring to fig. 7, the lifting unit 50 further includes a detecting sensor 54 for detecting whether the liquid crystal panel 70 is placed on the thimble 53, and the detecting sensor 54 is electrically connected to the restoring unit 60.
In this embodiment, the detection sensor 54 is configured to control when the restoring unit 60 operates, so that the restoring unit 60 can timely restore the liquid crystal panel 70.
As an alternative, referring to fig. 5 and 6, the suction unit 40 further includes a plurality of suction cups 42 and a vacuum generator 41 connected to the plurality of suction cups 42; the vacuum generator 41 is disposed on the turning platform 20, and the suction plane for sucking the liquid crystal panel 70 is formed at one end of the plurality of suction cups 42 departing from the turning platform 20.
In this embodiment, when the lcd panel 70 moves to contact with the suction cups 42, the plurality of suction cups 42 support the lcd panel 70, at this time, the vacuum generator 41 works to make the suction cups 42 adsorb the lcd panel 70, so that the turnover platform 20 rotates along with the turnover platform 20 when turning over, and the lcd panel 70 does not fall off from the suction cups 42, after the inspection is completed, the turnover platform 20 returns, the vacuum generator 41 stops working, and the lifting platform 52 extends to transfer the lcd panel 70 to the thimble 53.
It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An inspection apparatus for a liquid crystal panel, comprising:
a base;
a flipping platform mounted to the base and being flippable about a first axis;
the first driving mechanism is arranged on the base and used for driving the overturning platform to overturn around the first axis by a preset angle;
the adsorption unit is used for adsorbing the liquid crystal screen, and an adsorption plane of the adsorption unit is parallel to the first axis;
the lifting unit reciprocates along a first direction, the first direction is vertical to an adsorption plane of the adsorption unit, a plurality of ejector pins for supporting a liquid crystal screen are arranged on a lifting platform of the lifting unit, when the lifting platform is in jacking extension, free ends of the ejector pins are located at one ends, deviating from the overturning platform, of the adsorption plane, and when the lifting platform is in contraction, the free ends of the ejector pins are located at one ends, close to the overturning platform, of the adsorption plane;
a correcting unit; the correcting unit is located on the lifting unit and used for correcting the liquid crystal screen located on the ejector pin.
2. The device as claimed in claim 1, wherein the aligning unit comprises four aligning blocks and a second driving mechanism for driving the four aligning blocks to move relatively or oppositely.
3. The liquid crystal screen inspection device according to claim 2, wherein the second driving mechanism includes a first lead screw, a second lead screw, and a first servo motor that drives the first lead screw and a second servo motor that drives the second lead screw;
the first lead screw and the second lead screw are respectively provided with two correcting blocks, the first lead screw and the second lead screw are arranged in a crossed mode, the first lead screw is used for driving the threads of the two correcting blocks arranged on the first lead screw to rotate in opposite directions, and the second lead screw is used for driving the threads of the two correcting blocks arranged on the second lead screw to rotate in opposite directions.
4. The device as claimed in claim 3, wherein the first lead screw and the second lead screw are perpendicular to each other.
5. The liquid crystal panel inspection apparatus according to claim 3, wherein the righting unit further comprises a guide mechanism;
the guide mechanism comprises at least two first guide rods and a second guide rod, the extending direction of the first guide rods is the same as that of the first lead screw and penetrates through the correcting block arranged on the first lead screw, and the extending direction of the second guide rods is the same as that of the second lead screw and penetrates through the correcting block arranged on the second lead screw.
6. The liquid crystal panel inspection apparatus according to claim 1, wherein the first drive mechanism includes a drive motor, a speed reducer, and an anti-over-rotation sensor;
the driving motor is connected with the speed reducer, the speed reducer is used for installing the base, one end of the support of the overturning platform is connected, and the over-rotation preventing sensor is arranged at the output end of the speed reducer or on the base and used for monitoring the overturning angle of the overturning platform.
7. The apparatus of claim 1, wherein the flip table is flipped by an angle of-75 ° to +75 °.
8. The liquid crystal panel inspection device according to claim 7, wherein the lifting unit further includes a plurality of lifting mechanisms located below the lifting platform;
the lifting mechanisms are arranged between the lifting platform and the overturning platform, and the correcting unit is located at the center of the lifting platform.
9. The device of claim 8, wherein the lifting unit further comprises a detecting sensor for detecting whether the liquid crystal panel is placed on the thimble, and the detecting sensor is electrically connected to the restoring unit.
10. The liquid crystal panel inspection apparatus according to claim 1, wherein the suction unit further comprises a plurality of suction cups and a vacuum generator connected to the plurality of suction cups;
the vacuum generator is arranged on the overturning platform, and the suckers deviate from one end of the overturning platform to form an adsorption plane for adsorbing the liquid crystal screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921819397.1U CN210626819U (en) | 2019-10-25 | 2019-10-25 | Liquid crystal screen inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921819397.1U CN210626819U (en) | 2019-10-25 | 2019-10-25 | Liquid crystal screen inspection device |
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| Publication Number | Publication Date |
|---|---|
| CN210626819U true CN210626819U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921819397.1U Active CN210626819U (en) | 2019-10-25 | 2019-10-25 | Liquid crystal screen inspection device |
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| CN (1) | CN210626819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126335A (en) * | 2021-04-15 | 2021-07-16 | 四川京龙光电科技有限公司 | Automatic alignment liquid crystal display lighting judgment test machine |
-
2019
- 2019-10-25 CN CN201921819397.1U patent/CN210626819U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126335A (en) * | 2021-04-15 | 2021-07-16 | 四川京龙光电科技有限公司 | Automatic alignment liquid crystal display lighting judgment test machine |
| CN113126335B (en) * | 2021-04-15 | 2023-03-21 | 四川京龙光电科技有限公司 | Automatic alignment liquid crystal display lighting judgment test machine |
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Address after: 230013 Southwest District of Hefei City, Anhui Province Patentee after: Hefei xinyihua Intelligent Machine Co.,Ltd. Address before: 230013 Southwest District of Hefei City, Anhui Province Patentee before: HEFEI SINEVA INTELLIGENT MACHINE Co.,Ltd. |
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