CN108447429B - Liquid crystal display detection method and system - Google Patents
Liquid crystal display detection method and system Download PDFInfo
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- CN108447429B CN108447429B CN201810115482.3A CN201810115482A CN108447429B CN 108447429 B CN108447429 B CN 108447429B CN 201810115482 A CN201810115482 A CN 201810115482A CN 108447429 B CN108447429 B CN 108447429B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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Abstract
The invention discloses a liquid crystal screen detection method and a liquid crystal screen detection system, and relates to the technical field of liquid crystal screen detection.
Description
Technical Field
The invention relates to the technical field of liquid crystal display detection, in particular to a liquid crystal display detection method and system.
Background
At present, liquid crystal screens are more and more widely applied to electronic products, quality problems such as incapability of lighting the screens, poor screen linearity and scratching of the screen appearance may exist in the production process of the liquid crystal screens, and in order to avoid the problems, it is necessary to detect the quality of the liquid crystal screens, most of the traditional detection modes are manual detection, an operator firstly powers on the liquid crystal screens to observe whether the liquid crystal screens can be lighted and whether the liquid crystal screens have poor linearity, if the screens can be lighted and do not have poor linearity, the operator carefully observes whether scratches or other appearance damages exist on the liquid crystal screens, the detection mode has extremely low efficiency, one detector can only detect one liquid crystal screen at a time, and the working mode brings great labor intensity to the operator and has poor detection effect, and the liquid crystal screens may be accidentally damaged during manual detection, causing the increase of defective products.
Disclosure of Invention
The invention aims to solve the technical problems that the liquid crystal display screen can be accidentally damaged during manual detection, so that the phenomenon of increasing defective products is caused, and the efficiency is low.
In order to solve the technical problem, the invention provides a liquid crystal display detection method and a liquid crystal display detection system.
The liquid crystal screen detection method comprises the following steps:
acquiring first position information of a liquid crystal screen on the workpiece conveying mechanism through the primary positioning assembly;
controlling a first manipulator assembly to grab the liquid crystal screen on the workpiece conveying mechanism according to the first position information provided by the primary positioning assembly;
when the first manipulator assembly drives the liquid crystal screen to move to a preset area, second position information of the liquid crystal screen is obtained through a fine positioning assembly, and the first manipulator assembly is controlled to move the liquid crystal screen to a preset initial position according to the second position information;
controlling a first mechanical arm group to move the liquid crystal screen from the preset initial position to a detection position of a screen detection assembly, and detecting whether the liquid crystal screen has the defect of poor linearity or incapability of being lightened by using the screen detection assembly;
when the liquid crystal screen has no defect of poor linearity or incapability of being lightened, controlling a second manipulator assembly to move the liquid crystal screen to a detection position of an appearance detection assembly, and detecting whether the liquid crystal screen has appearance defects or not by using the appearance detection assembly; and when the liquid crystal screen has no appearance defects, controlling the second manipulator assembly to move the liquid crystal screen to the discharging conveyor belt mechanism.
The liquid crystal screen detection system comprises:
the position information acquisition module is used for acquiring first position information of a liquid crystal screen on the workpiece conveying mechanism through the primary positioning assembly;
the grabbing module is used for controlling the first manipulator assembly to grab the liquid crystal screen on the workpiece conveying mechanism according to the first position information provided by the primary positioning assembly;
the liquid crystal screen moving module is used for acquiring second position information of the liquid crystal screen through the fine positioning assembly when the first manipulator assembly drives the liquid crystal screen to move to a preset area, and controlling the first manipulator assembly to move the liquid crystal screen to a preset initial position according to the second position information;
the first defect detection module is used for controlling the first mechanical arm group to move the liquid crystal screen from the preset initial position to a detection position of the screen detection assembly, and detecting whether the liquid crystal screen has the defect of poor linearity or incapability of being lightened by using the screen detection assembly;
the second defect detection module is used for controlling the second manipulator assembly to move the liquid crystal screen to a detection position of the appearance detection assembly when the liquid crystal screen has no defect of poor linearity or incapability of being lightened, and detecting whether the liquid crystal screen has the appearance defect by using the appearance detection assembly; and when the liquid crystal screen has no appearance defects, controlling the second manipulator assembly to move the liquid crystal screen to the discharging conveyor belt mechanism.
Further, the workpiece conveying mechanism is used for driving the liquid crystal screen to move;
the primary positioning assembly is positioned above the workpiece conveying mechanism and arranged on the fixing frame, and is used for detecting the position of the liquid crystal screen;
the first manipulator assembly is positioned on one side of the workpiece transmission mechanism and used for taking and placing the liquid crystal screen on the workpiece transmission mechanism;
the fine positioning assembly is electrically connected with the first manipulator assembly and the fixing frame, and is used for detecting the position information of the liquid crystal screen and finely adjusting the first manipulator assembly to the position of the liquid crystal screen, which is the same as the preset position;
the screen detection assembly is connected with the fixing frame and positioned on one side of the fine positioning assembly, and the screen detection assembly is used for electrifying and detecting the liquid crystal screen;
the second manipulator assembly is positioned on one side of the screen detection assembly and connected with the fixed frame, and the second manipulator fetching piece is used for fetching and placing the liquid crystal screen on the screen detection assembly;
and the appearance detection assembly is positioned on one side of the second manipulator assembly and fixedly connected with the second manipulator assembly, and is used for detecting the appearance of the liquid crystal display.
Further, the primary positioning assembly comprises:
the adjustable support frame is arranged at the upper end of the fixing clamp;
the position collector is arranged at the lower end of the adjustable support frame and used for collecting position information of the liquid crystal display and enabling the first manipulator assembly to adjust a workpiece taking position;
and the two-dimensional code detector is arranged at the lower end of the adjustable support frame and is used for detecting whether the two-dimensional code on the liquid crystal display screen is complete or not.
Furthermore, the fine positioning assembly comprises a plurality of first light emitters, each first light emitter is arranged on the fixing frame, a position detector is inserted into each first light emitter, and the position detectors are used for detecting specific position information of the liquid crystal screen.
Further, the screen detection assembly includes:
the upper end of the screen placing block is provided with a placing groove for placing a liquid crystal screen;
the screen pressing block is arranged at one end of the screen placing block and used for fixing the liquid crystal screen;
the screen electrifying block is arranged at one end of the screen placing block, and an electrifying inserting block is arranged at one end of the screen electrifying block and can be in inserted connection with one end of the liquid crystal screen;
the screen linear detection assembly is positioned above the screen placement block and connected with the fixing frame, and the screen linear detection assembly is used for detecting whether the electrified liquid crystal screen has poor linearity.
Further, the screen down block includes:
supporting plates arranged at two side ends of the screen placing block;
the two ends of the rotating shaft respectively penetrate through the corresponding supporting plate, the two ends of the rotating shaft are respectively and fixedly provided with a transmission block curve, and the rotating shaft is uniformly provided with a plurality of pressing plates;
the first cylinder is arranged on the side end face of the supporting plate, and the upper end of the first cylinder is connected with the transmission curved block in a sliding manner;
when the first cylinder stretches out and draws back, the rotating shaft can be driven to rotate.
The screen power-on block includes:
the adjusting cylinder group is positioned on the side of the screen placing block, and one end of the adjusting cylinder group is fixedly arranged on the fixing frame;
the inserting cylinder is arranged at the upper end of the adjusting cylinder, and the electrifying inserting block is arranged at one end of the inserting cylinder;
when the inserting cylinder stretches, the electrifying inserting block can be inserted into or pulled out of the electrifying end of the liquid crystal screen.
The screen linearity detecting assembly includes:
one end of the fine adjustment bracket is fixedly arranged on the fixed frame;
and one end of the linear detector is connected to the lower end of the fine adjustment bracket, and the linear detector is used for detecting whether the electrified liquid crystal screen has poor linearity.
Further, the fine tuning support comprises:
one end of the first adjusting screw rod assembly is fixedly arranged on the fixing frame, and a first screw rod is rotatably inserted into the first adjusting screw rod assembly;
one end of the second adjusting screw rod assembly is in threaded connection with the first screw rod, a second screw rod is rotatably inserted into the second adjusting screw rod assembly, and one end of the linear detector is in threaded connection with the second screw rod.
Further, the appearance detection assembly includes:
the second illuminator is arranged at the upper end of the fixing frame, a front image acquirer is inserted into the second illuminator and used for acquiring appearance information of the upper end face of the liquid crystal screen and comparing the appearance information with appearance information of the upper end face of a preset liquid crystal screen;
and the third illuminator is positioned below the second illuminator and connected with the fixing frame, a reverse image acquirer is inserted into the third illuminator and used for acquiring the appearance information of the lower end face of the liquid crystal screen and comparing the appearance information with the appearance information of the lower end face of the liquid crystal screen under the preset condition.
Further, work piece transport mechanism includes base, a plurality of groups drive belt and driver, every the equal swing joint of drive belt in the base upper end, the driver is located on the base and one end with the conveyer belt is connected, and is two sets of be equipped with the work piece inductor of being connected with the base between the drive belt, the work piece inductor is located just connect with the driver electricity in the primary positioning subassembly below, work as the conveyer belt with the LCD screen conveying to when work piece inductor top, the driver can pause the drive.
Compared with the prior art, the liquid crystal screen detection device has the advantages that the liquid crystal screen can be placed on the conveyor belt manually, then the liquid crystal screen detection device can be used for detecting the quality of the liquid crystal screen in a full-automatic mode, the labor intensity of operators is greatly reduced, the detection precision is high, the detection efficiency of the liquid crystal screen is improved, the primary positioning assembly and the fine positioning assembly can collect and adjust the picking and placing position of the first manipulator assembly, the workpiece damage caused by the fact that the connection position of the power-on plug block and the liquid crystal screen is improper is avoided, and the occurrence of defective products is reduced.
Drawings
Fig. 1 is a flowchart of a method for detecting a liquid crystal display according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a specific structure of a liquid crystal panel inspection device suitable for the present invention;
FIG. 3 is another orientation view of FIG. 2;
FIG. 4 is a structural view of a screen energizing block applied to the liquid crystal screen detecting device of the present invention;
fig. 5 is a structural view of a screen linearity detecting unit of a liquid crystal screen detecting device applicable to the present invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Fig. 1 is a flowchart illustrating a method for detecting a liquid crystal display according to an embodiment of the present invention; the phases are ripe as follows:
the liquid crystal screen detection method comprises the following steps:
and S101, acquiring first position information of a liquid crystal screen on the workpiece conveying mechanism through the primary positioning assembly.
The workpiece conveying mechanism is used for driving the liquid crystal screen to move, an operator puts the liquid crystal screen into one end of the workpiece conveying mechanism, and the workpiece conveying mechanism can drive the liquid crystal screen to move.
The initial positioning assembly is used for positioning a liquid crystal screen to be detected on the workpiece conveying mechanism so as to obtain first position information of the liquid crystal screen.
And S102, controlling a first manipulator assembly to grab the liquid crystal screen on the workpiece conveying mechanism according to the first position information provided by the primary positioning assembly.
And the controller adjusts the posture of the first manipulator assembly according to the first position information provided by the primary positioning assembly so as to grab the liquid crystal screen on the workpiece conveying mechanism.
Furthermore, the liquid crystal screen moves in real time along with the workpiece conveying mechanism, the primary positioning assembly can acquire the position of the liquid crystal screen on the workpiece conveying mechanism in real time, and the posture of the first mechanical arm assembly can be dynamically adjusted in real time so as to grab the liquid crystal screen on the workpiece conveying mechanism. That is, this process is dynamic.
And S103, when the first manipulator assembly drives the liquid crystal screen to move to a preset area, acquiring second position information of the liquid crystal screen through a fine positioning assembly, and controlling the first manipulator assembly to move the liquid crystal screen to a preset initial position according to the second position information.
The detectable area of the fine positioning component is limited, and the fine positioning component can be used for acquiring the position information of the liquid crystal screen.
Further, the first manipulator assembly is controlled to move the liquid crystal screen to a preset initial position according to the second position information.
The preset initial position is an initial position which can be used as a first manipulator assembly to move.
And step S104, controlling a first mechanical arm group to move the liquid crystal screen from the preset initial position to a detection position of a screen detection assembly, and detecting whether the liquid crystal screen has the defect of poor linearity or incapability of being lightened by using the screen detection assembly.
The screen detection component can detect the defects of the liquid crystal screen, for example, whether the liquid crystal screen has the defects of poor linearity or incapability of lighting.
The screen detection assembly needs to detect the defects of the liquid crystal screen at a detection position.
Step S105, when the liquid crystal screen has no defect of poor linearity or incapability of being lightened, controlling a second manipulator assembly to move the liquid crystal screen to a detection position of an appearance detection assembly, and detecting whether the liquid crystal screen has appearance defects or not by using the appearance detection assembly; and when the liquid crystal screen has no appearance defects, controlling the second manipulator assembly to move the liquid crystal screen to the discharging conveyor belt mechanism.
When the screen detection assembly detects that the liquid crystal screen has no defect of poor linearity or incapability of being lightened, the second manipulator assembly is controlled to move the liquid crystal screen to a detection position of the appearance detection assembly, and the appearance detection assembly is used for detecting whether the liquid crystal screen has appearance defects; and when the liquid crystal screen has no appearance defects, controlling the second manipulator assembly to move the liquid crystal screen to the discharging conveyor belt mechanism.
The appearance detection assembly is used for detecting appearance defects of the liquid crystal screen, and the indexes of the appearance defects comprise: and detecting whether scratches exist on the upper end surface and the lower end surface of the liquid crystal screen and whether the width of the black edge of the liquid crystal screen meets a preset value.
And when the liquid crystal screen has no appearance defects, controlling the second manipulator assembly to move the liquid crystal screen to the discharging conveyor belt mechanism.
Furthermore, the workpiece conveying mechanism can continuously send the required liquid crystal screens, and the invention can realize automatic detection of batch liquid crystal screens.
In another aspect, the liquid crystal display panel detection system includes:
the position information acquisition module is used for acquiring first position information of a liquid crystal screen on the workpiece conveying mechanism through the primary positioning assembly;
the grabbing module is used for controlling the first manipulator assembly to grab the liquid crystal screen on the workpiece conveying mechanism according to the first position information provided by the primary positioning assembly;
the liquid crystal screen moving module is used for acquiring second position information of the liquid crystal screen through the fine positioning assembly when the first manipulator assembly drives the liquid crystal screen to move to a preset area, and controlling the first manipulator assembly to move the liquid crystal screen to a preset initial position according to the second position information;
the first defect detection module is used for controlling the first mechanical arm group to move the liquid crystal screen from the preset initial position to a detection position of the screen detection assembly, and detecting whether the liquid crystal screen has the defect of poor linearity or incapability of being lightened by using the screen detection assembly;
the second defect detection module is used for controlling the second manipulator assembly to move the liquid crystal screen to a detection position of the appearance detection assembly when the liquid crystal screen has no defect of poor linearity or incapability of being lightened, and detecting whether the liquid crystal screen has the appearance defect by using the appearance detection assembly; and when the liquid crystal screen has no appearance defects, controlling the second manipulator assembly to move the liquid crystal screen to the discharging conveyor belt mechanism.
Compared with the prior art, the liquid crystal screen detection device has the advantages that the liquid crystal screen can be placed on the conveyor belt manually, then the liquid crystal screen detection device can be used for detecting the quality of the liquid crystal screen in a full-automatic mode, the labor intensity of operators is greatly reduced, the detection precision is high, the detection efficiency of the liquid crystal screen is improved, the primary positioning assembly and the fine positioning assembly can collect and adjust the picking and placing position of the first manipulator assembly, the workpiece damage caused by the fact that the connection position of the power-on plug block and the liquid crystal screen is improper is avoided, and the occurrence of defective products is reduced.
Further, the control method and system provided by the invention are applied to the liquid crystal screen detection device, wherein a specific structure and control method of the liquid crystal screen detection device suitable for the invention are as follows:
as shown in fig. 2 and 3, the liquid crystal panel detecting apparatus includes: the workpiece conveying mechanism is arranged on the side of the fixing frame 1 and is used for driving the liquid crystal screen to move; the primary positioning assembly 2 is positioned above the workpiece conveying mechanism and arranged on the fixed frame 1, and the primary positioning assembly 2 is used for detecting the position of the liquid crystal screen; the first manipulator assembly 3 is positioned on one side of the workpiece transmission mechanism, and the first manipulator assembly 3 is used for taking and placing a liquid crystal screen on the workpiece transmission mechanism; the fine positioning assembly is electrically connected with the first manipulator assembly 3 and the fixing frame 1, and is used for detecting the position information of the liquid crystal screen and enabling the first manipulator assembly 3 to be finely adjusted to the position where the liquid crystal screen is the same as the position where the liquid crystal screen is preset; the screen detection assembly is connected with the fixing frame 1 and is positioned on one side of the fine positioning assembly, and the screen detection assembly is used for electrifying and detecting the liquid crystal screen; the second manipulator assembly 4 is positioned on one side of the screen detection assembly and connected with the fixed frame 1, and a second manipulator fetching piece is used for fetching and placing the liquid crystal screen on the screen detection assembly; the appearance detection assembly is positioned on one side of the second manipulator assembly 4 and is fixedly connected with the second manipulator assembly, and the appearance detection assembly is used for detecting the appearance of the liquid crystal display; and the discharging conveying mechanism 34 is positioned at one end of the fixed frame 1 close to the appearance detection assembly, and the discharging conveying mechanism 34 is used for conveying the liquid crystal screen after detection is finished.
The workpiece conveying mechanism is used for driving the liquid crystal screen to move, an operator puts the liquid crystal screen into one end of the workpiece conveying mechanism, the workpiece conveying mechanism can drive the liquid crystal screen to move, when the liquid crystal screen moves to the position below the primary positioning component 2, the primary positioning component 2 can collect position information of the liquid crystal screen and send the position information of the liquid crystal screen to the first manipulator component 3, so that the first manipulator component 3 can adjust a pick-up position to pick up a workpiece, further, the first manipulator component 3 drives the liquid crystal screen to move to the position above the fine positioning component, the fine positioning component can detect the position information of the liquid crystal screen and send the position information of the liquid crystal screen to the first manipulator component 3, so that the first manipulator component 3 can self-adjust according to the position information of the preset liquid crystal screen, and the position of the liquid crystal screen on the first manipulator component 3 is the same as the preset position, in this case, the positioning of the liquid crystal screen can be completed.
The first manipulator assembly 3 adjusts the position of the liquid crystal screen to be the same as the preset position of the liquid crystal screen, the first manipulator assembly 3 moves the position serving as an original point to the direction of the screen detection assembly again until the liquid crystal screen is placed to the detection position of the screen detection assembly, so that the liquid crystal screen can be ensured to be the same as the detection position of the screen detection assembly, the damage of the liquid crystal screen caused by different positions or angles is avoided, at the moment, the screen detection assembly can electrify the liquid crystal screen, and the problems that whether the liquid crystal screen can be lightened and whether poor linearity exists on the screen are detected are solved;
if the liquid crystal screen cannot be lightened or has poor linearity, the second manipulator assembly 4 can take out the liquid crystal screen on the screen detection assembly and move the liquid crystal screen to the waste material area outside the device and put down, if the liquid crystal screen can be lightened and the screen has poor linearity after the liquid crystal screen is lightened, the second manipulator assembly 4 can take out the liquid crystal screen on the screen detection assembly and move the liquid crystal screen to the appearance detection assembly, so that the appearance detection assembly can detect the appearance of the liquid crystal screen, detect whether scratches exist on the upper end surface and the lower end surface of the liquid crystal screen and whether the black edge width of the liquid crystal screen meets the preset value, if any one of the two detection items does not meet the requirement, the second manipulator assembly 4 can move the liquid crystal screen to the waste material area outside the device and put down, if the two detection items meet the requirement at the same time, the second manipulator assembly 4 can drive the liquid crystal screen to the discharge conveyor belt mechanism, and finishing the detection of the liquid crystal screen.
By the detection mode, the labor intensity of operators can be greatly reduced, the detection efficiency of the liquid crystal screen is improved, the quality information of the liquid crystal screen is compared with the preset quality information, the detection precision can be improved, and the detection error is reduced.
As shown in fig. 2, the primary positioning assembly 2 includes: the adjustable support frame 5 is arranged at the upper end of the fixing clamp; the position collector 6 is arranged at the lower end of the adjustable support frame 5, and the position collector 6 is used for collecting the position information of the liquid crystal screen and enabling the first manipulator assembly 3 to adjust the workpiece taking position; two-dimensional code detector 7, it sets up in 5 lower extremes of adjustable support frame, and two-dimensional code detector 7 is used for detecting whether complete the two-dimensional code on the LCD screen, if detect the two-dimensional code on the LCD screen incomplete, work piece transport mechanism just can directly spread this device with the LCD screen, if it is correct to detect the two-dimensional code on the LCD screen, position information that position collector 6 just can gather the LCD screen.
The fine positioning assembly comprises a plurality of first light emitters 8, each first light emitter 8 is arranged on the fixing frame 1, a position detector 9 is inserted into each first light emitter 8, and the position detector 9 is used for detecting specific position information of the liquid crystal screen.
When the first manipulator assembly 3 drives the liquid crystal screen to move to the fine positioning assembly, the first light emitter 8 can illuminate the liquid crystal screen, so that the position detector 9 can detect the position of the liquid crystal screen, in the application, a camera is used as the position detector 9, but the position detector 9 is not limited to the camera, after the camera collects the position information of the liquid crystal screen, the position information of the liquid crystal screen can be compared with the preset position information of the liquid crystal screen, and the information is sent to the first manipulator assembly 3, the first manipulator assembly 3 continuously adjusts the position of the first manipulator assembly 3 until the position information of the liquid crystal screen is completely matched with the preset position information of the liquid crystal screen, then the first manipulator assembly 3 takes the position as an original point and carries out relative movement, so that the correct relative position of the liquid crystal screen can be ensured, and the external force damage caused by incorrect position is avoided when the liquid crystal screen is detected, the yield of the liquid crystal display is improved.
As shown in fig. 2 and 3, the screen detecting assembly includes: the screen placing block 10 is provided with a placing groove 11 for placing the liquid crystal screen at the upper end of the screen placing block 10; the screen pressing block is arranged at one end of the screen placing block 10 and used for fixing the liquid crystal screen; the screen electrifying block is arranged at one end of the screen placing block, one end of the screen electrifying block is provided with an electrifying inserting block 12, and the electrifying inserting block 12 can be connected with one end of the liquid crystal screen in an inserting manner; the screen linear detection assembly is positioned above the screen placement block and connected with the fixing frame 1, and the screen linear detection assembly is used for detecting whether the electrified liquid crystal screen has poor linearity.
First manipulator subassembly 3 can drive the LCD screen and put into the LCD screen to the screen and put 11 in, thereby the screen pushes down the chunk and can fix the LCD screen, be convenient for circular telegram inserted block 12 inserts to the LCD screen on, can energize to the LCD screen when circular telegram inserted block 12 inserts to the LCD screen, screen linearity detection subassembly just can detect whether linear bad exists in the LCD screen after the circular telegram is lighted, if the LCD screen can't light or there is linear bad, second manipulator subassembly 4 just can take out the LCD screen on the screen detection subassembly and remove it to the outside waste material region of device and put down, if the LCD screen can be lighted and light the back screen linearity is bad, second manipulator subassembly 4 just can take out the LCD screen on the screen detection subassembly and remove to next station.
The screen press block includes: supporting plates 13 arranged at both side ends of the screen placing block; the device comprises a rotating shaft 14, wherein two ends of the rotating shaft 14 respectively penetrate through a corresponding supporting plate 13, two ends of the rotating shaft 14 are respectively and fixedly provided with a transmission block bend 15, and a plurality of pressing plates 16 are uniformly arranged on the rotating shaft 14; the first air cylinder 17 is arranged on the end face of the side of the support plate 13, and the upper end of the first air cylinder is connected with the transmission crank block in a sliding manner; when the first cylinder 17 extends or contracts, the rotating shaft 14 can be driven to rotate.
As shown in fig. 2, 3 and 4, the screen power-on block includes: the adjusting cylinder group 18 is positioned at the side of the screen placing block, and one end of the adjusting cylinder group is fixedly arranged on the fixed frame 1; an insertion cylinder 19 provided at an upper end of the adjustment cylinder, and an energization insertion block 12 provided at one end of the insertion cylinder 19; when the inserting cylinder 19 extends, the electrifying inserting block 12 can be inserted into or pulled out of the electrifying end of the liquid crystal screen.
The adjusting cylinder group 18 can adjust the up-down, left-right and front-back positions of the inserted cylinder 19, namely, the up-down, left-right and front-back positions of the electrified inserted block 12 are adjusted, so that the device can be suitable for different liquid crystal screens, the universality of the device is improved, the electrified inserted block 12 is connected with one end of the inserted cylinder 19, namely, the inserted cylinder 19 can drive the electrified inserted block 12 to move forwards or backwards, the electrified end of the liquid crystal screen can be inserted into or pulled out of the electrified inserted block 12, and when the electrified inserted block 12 is inserted into the electrified end of the liquid crystal screen, the liquid crystal screen can be electrified and lightened.
The screen linearity detecting assembly includes: one end of the fine adjustment bracket is fixedly arranged on the fixed frame 1; and a linear detector 20, one end of which is connected to the lower end of the fine tuning bracket, wherein the linear detector 20 is used for detecting whether the liquid crystal screen has poor linearity after being electrified.
Use the camera as linear detector 20 in this application, but linear detector 20 is not limited to the camera, and the camera can gather the information of the LCD screen after the circular telegram is lighted to compare with the information of the LCD screen after the preset circular telegram is lighted, just so can detect whether linear harmfully exists in the LCD screen, need not that operating personnel is with observing the LCD screen one by one, reduce operating personnel's working strength, avoid considering to observe the error that brings, detect the precision height.
As shown in fig. 5, the fine tuning bracket includes: one end of the first adjusting screw assembly 21 is fixedly arranged on the fixed frame 1, and a first screw 23 is rotatably inserted into the first adjusting screw assembly 21; one end of the second adjusting screw assembly 22 is in threaded connection with the first screw 23, the second adjusting screw assembly 22 is rotatably inserted with a second screw 24, and one end of the linear detector 20 is in threaded connection with the second screw 24.
First adjusting screw subassembly 21 transversely sets up on mount 1, because second adjusting screw subassembly 22 and first screw 23 threaded connection, so rotate first screw 23 and can adjust the horizontal position of second adjusting screw subassembly 22, second adjusting screw subassembly 22 is vertical setting for mount 1, linear detector 20's one end and second screw 24 threaded connection, it can enough adjust linear detector 20's upper and lower position to rotate second screw 24, just so can make linear detector 20 be applicable to different LCD screens, increase this application's application scope.
As shown in fig. 2 and 3, the appearance detecting assembly includes: the second illuminator 25 is arranged at the upper end of the fixed frame 1, the front image acquirer 26 is inserted into the second illuminator 25, and the front image acquirer 26 is used for acquiring the appearance information of the upper end face of the liquid crystal screen and comparing the appearance information with the appearance information of the upper end face of the preset liquid crystal screen; and a third light emitter 27 located below the second light emitter 25 and connected to the fixing frame 1, wherein a reverse image acquirer 28 is inserted into the third light emitter 27, and the reverse image acquirer 28 is configured to acquire appearance information of the lower end face of the liquid crystal display and compare the acquired appearance information with the preset appearance information of the lower end face of the liquid crystal display.
The second light emitter 25 and the third light emitter 27 can illuminate the upper end surface and the lower end surface of the liquid crystal screen, respectively, so as to facilitate the front image acquirer 26 and the back image acquirer 28 to acquire image information of the upper end surface and the lower end surface of the liquid crystal screen (the image information of the upper end surface and the lower end surface of the liquid crystal screen includes screen scratches, shielding black margin width, and the like of the upper end surface and the lower end surface).
All use the camera as positive image acquirer 26 and reverse image acquirer 28 in this application, but linear detector 20 positive image acquirer 26 and reverse image acquirer 28 are not all limited to the camera, positive image acquirer 26 and reverse image acquirer 28 can gather the image information of the positive and negative of LCD screen, then compare with the outward appearance information of the preset LCD screen positive and negative, if both information are all the same, second manipulator subassembly 4 just can put into the LCD screen to ejection of compact transport mechanism 34 on, if any one of both information is different, second manipulator subassembly 4 just can put into the LCD screen to the waste material district.
Workpiece transfer mechanism includes base 29, a plurality of groups drive belt 31 and driver 32, every drive belt 31 equal swing joint is in base 29 upper end, driver 32 locates on base 29 and one end is connected with the conveyer belt, be equipped with the work piece inductor 33 of being connected with base 29 between two sets of drive belts 31, work piece inductor 33 is located just to be connected with driver 32 electricity in primary positioning subassembly 2 below, when the conveyer belt conveys the LCD screen to work piece inductor 33 top, driver 32 can pause the drive, be convenient for primary positioning subassembly 2 obtains the positional information and the first manipulator subassembly 3 of LCD screen and takes away the LCD screen.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (5)
1. A liquid crystal screen detection system is characterized by comprising:
the position information acquisition module is used for acquiring first position information of a liquid crystal screen on the workpiece conveying mechanism through the primary positioning assembly;
the grabbing module is used for grabbing the first position information according to the first position information provided by the primary positioning assembly,
controlling a first manipulator assembly to grab the liquid crystal screen on the workpiece conveying mechanism;
the liquid crystal screen moving module is used for acquiring second position information of the liquid crystal screen through the fine positioning assembly when the first manipulator assembly drives the liquid crystal screen to move to a preset area, and controlling the first manipulator assembly to move the liquid crystal screen to a preset initial position according to the second position information;
the first defect detection module is used for controlling the first mechanical arm group to move the liquid crystal screen from the preset initial position to a detection position of the screen detection assembly, and detecting whether the liquid crystal screen has the defect of poor linearity or incapability of being lightened by using the screen detection assembly;
the second defect detection module is used for controlling the second manipulator assembly to move the liquid crystal screen to a detection position of the appearance detection assembly when the liquid crystal screen has no defect of poor linearity or incapability of being lightened, and detecting whether the liquid crystal screen has the appearance defect by using the appearance detection assembly; when the liquid crystal screen has no appearance defects, controlling the second manipulator assembly to move the liquid crystal screen to a discharging conveyor belt mechanism;
the workpiece conveying mechanism is used for driving the liquid crystal screen to move;
the primary positioning assembly is positioned above the workpiece conveying mechanism and arranged on the fixing frame, and the primary positioning assembly is used for detecting the position of the liquid crystal screen;
a first robot assembly located at one side of the workpiece transfer mechanism, the first robot assembly
The manipulator assembly is used for picking and placing the liquid crystal screen on the workpiece conveying mechanism;
a fine positioning assembly electrically connected with the first manipulator assembly and fixed with the first manipulator assembly
The fine positioning assembly is used for detecting the position information of the liquid crystal screen and enabling the first manipulator assembly to finely adjust the position of the liquid crystal screen to a preset initial position;
the screen detection assembly is connected with the fixing frame and positioned on one side of the fine positioning assembly, and the screen detection assembly is used for electrifying and detecting the liquid crystal screen;
the second manipulator assembly is positioned on one side of the screen detection assembly and connected with the fixed frame, and the second manipulator fetching piece is used for fetching and placing the liquid crystal screen on the screen detection assembly;
the appearance detection assembly is positioned on one side of the second manipulator assembly and connected with the fixing frame, and the appearance detection assembly is used for detecting the appearance of the liquid crystal display;
the screen detecting assembly includes:
the upper end of the screen placing block is provided with a placing groove for placing a liquid crystal screen;
the screen pressing block is arranged at one end of the screen placing block and used for fixing the liquid crystal screen;
the screen electrifying block is arranged at one end of the screen placing block, and an electrifying inserting block is arranged at one end of the screen electrifying block and can be connected with one end of the liquid crystal screen in an inserting manner;
the screen linear detection assembly is positioned above the screen placement block and connected with the fixing frame, and is used for detecting whether the electrified liquid crystal screen has poor linearity or not;
the screen press-down block includes:
support plates arranged at two side ends of the screen placing block;
the two ends of the rotating shaft respectively penetrate through the corresponding supporting plate, the two ends of the rotating shaft are fixedly provided with transmission bent blocks, and the rotating shaft is uniformly provided with a plurality of pressing plates;
the first cylinder is arranged on the side end face of the supporting plate, and the upper end of the first cylinder is connected with the transmission curved block in a sliding manner;
when the first cylinder stretches, the rotating shaft can be driven to rotate;
the screen power-on block includes:
the adjusting cylinder group is positioned on the side of the screen placing block, and one end of the adjusting cylinder group is fixedly arranged on the fixing frame;
the inserting cylinder is arranged at the upper end of the adjusting cylinder, and the electrifying inserting block is arranged at one end of the inserting cylinder;
when the inserting cylinder stretches, the electrifying inserting block can be inserted into or pulled out of the electrifying end of the liquid crystal screen;
the screen linearity detecting assembly includes:
one end of the fine adjustment bracket is fixedly arranged on the fixed frame;
one end of the linear detector is connected to the lower end of the fine adjustment bracket, and the linear detector is used for detecting whether the electrified liquid crystal screen has poor linearity;
the fine tuning support comprises:
one end of the first adjusting screw rod assembly is fixedly arranged on the fixing frame, and a first screw rod is rotatably inserted into the first adjusting screw rod assembly;
one end of the second adjusting screw rod assembly is in threaded connection with the first screw rod, a second screw rod is rotatably inserted into the second adjusting screw rod assembly, and one end of the linear detector is in threaded connection with the second screw rod.
2. The LCD panel inspection system of claim 1, wherein the initial positioning assembly comprises:
the adjustable support frame is arranged at the upper end of the fixed frame;
the position collector is arranged at the lower end of the adjustable support frame and used for collecting position information of the liquid crystal display and enabling the first manipulator assembly to adjust a workpiece taking position;
and the two-dimensional code detector is arranged at the lower end of the adjustable support frame and is used for detecting whether the two-dimensional code on the liquid crystal display screen is complete or not.
3. The liquid crystal display detection system of claim 1, wherein the fine positioning assembly comprises a plurality of first light emitters, each first light emitter is disposed on the fixing frame, a position detector is inserted into each first light emitter, and the position detector is configured to detect specific position information of the liquid crystal display.
4. The liquid crystal screen detection system of claim 1, wherein the appearance detection assembly comprises:
the second illuminator is arranged at the upper end of the fixing frame, a front image acquirer is inserted into the second illuminator and used for acquiring appearance information of the upper end face of the liquid crystal screen and comparing the appearance information with appearance information of the upper end face of a preset liquid crystal screen;
and the third illuminator is positioned below the second illuminator and connected with the fixing frame, a reverse image acquirer is inserted into the third illuminator and used for acquiring the appearance information of the lower end face of the liquid crystal screen and comparing the appearance information with the appearance information of the lower end face of the liquid crystal screen under the preset condition.
5. The LCD screen detection system of claim 1, wherein the workpiece conveying mechanism comprises a base, a plurality of sets of transmission belts and a driver, each transmission belt is movably connected to the upper end of the base, the driver is arranged on the base, one end of the driver is connected with the transmission belt, a workpiece sensor connected with the base is arranged between the two sets of transmission belts, the workpiece sensor is located below the primary positioning assembly and electrically connected with the driver, and when the transmission belts convey the LCD screen to the upper portion of the workpiece sensor, the driver can pause driving.
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| CN109613726B (en) * | 2018-12-27 | 2023-08-29 | 宁波图锐自动化设备有限公司 | Control method and control system for automatically plugging liquid crystal display |
| CN109814285A (en) * | 2019-01-11 | 2019-05-28 | 深圳市联得自动化装备股份有限公司 | Detect the apparatus and system of defects of display panel |
| CN110391575B (en) * | 2019-06-24 | 2021-01-05 | 宁波图锐自动化设备有限公司 | Control method and device for automatic plugging of liquid crystal display socket and plug |
| CN112027647A (en) * | 2020-08-28 | 2020-12-04 | 湛江德利车辆部件有限公司 | Feeding method |
| CN113808509B (en) * | 2021-07-15 | 2023-11-17 | 深圳市利鹏显示技术科技有限公司 | Detection mechanism for OLED display module |
| CN117012123B (en) * | 2023-06-30 | 2023-12-22 | 广州鸿宇数字科技有限公司 | Liquid crystal display dead pixel detection equipment and detection method |
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