CN110908156A - Automatic detection equipment for liquid crystal display line AOI - Google Patents

Automatic detection equipment for liquid crystal display line AOI Download PDF

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Publication number
CN110908156A
CN110908156A CN201911347985.4A CN201911347985A CN110908156A CN 110908156 A CN110908156 A CN 110908156A CN 201911347985 A CN201911347985 A CN 201911347985A CN 110908156 A CN110908156 A CN 110908156A
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CN
China
Prior art keywords
liquid crystal
detection
base
crystal screen
seat
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Pending
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CN201911347985.4A
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Chinese (zh)
Inventor
洪亚德
林中龙
潘书万
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G-FIRST OEIC Co Ltd
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G-FIRST OEIC Co Ltd
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Priority to CN201911347985.4A priority Critical patent/CN110908156A/en
Publication of CN110908156A publication Critical patent/CN110908156A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/1306Details
    • G02F1/1309Repairing; Testing

Abstract

The invention discloses automatic detection equipment for an AOI (automatic optical inspection) of a liquid crystal display line, which comprises a rack, a control device, a feeding device, a detection device, a material taking device and a discharging device, wherein the control device is connected with the rack; the feeding device comprises a front conveying mechanism, a position correcting mechanism and a front transfer mechanism, wherein the front conveying mechanism is used for conveying the liquid crystal screen to be detected, and the position correcting mechanism is used for correcting the position of the liquid crystal screen to be detected; the detection device comprises a transfer mechanism and a detection mechanism, the transfer mechanism can move along the longitudinal direction of the rack, and the detection mechanism is arranged above the transfer mechanism; the material taking device comprises a feeding and transferring mechanism and an unloading and transferring mechanism, the feeding and transferring mechanism transfers the liquid crystal screen to be detected to the transferring mechanism, and the unloading and transferring mechanism transfers the liquid crystal screen detected by the detection mechanism to the discharging device; the blanking device is used for conveying good liquid crystal screens and bad liquid crystal screens. The invention not only realizes the automatic feeding and discharging of the liquid crystal screen, but also can correct the position of the liquid crystal screen during feeding, thereby greatly improving the detection efficiency of the liquid crystal screen.

Description

Automatic detection equipment for liquid crystal display line AOI
Technical Field
The invention relates to the field of visual detection equipment, in particular to automatic detection equipment for an AOI (automatic optical inspection) circuit of a liquid crystal display.
Background
The liquid crystal screen has the advantages of small volume, low power consumption, low radiation and the like, and is widely applied to electronic equipment, various defects such as incapability of lightening the screen, scratch of the screen appearance and the like are easily formed in the production process of the liquid crystal screen, so that the detection of the liquid crystal screen is very necessary, and the defective liquid crystal screen can be prevented from flowing out.
In the production line of the existing liquid crystal screen, the detection of the liquid crystal screen is completed through the manual auxiliary visual detection equipment, namely, the visual detection equipment detects, the liquid crystal screen to be detected needs to be manually fed to a detection table, the liquid crystal screen is detected and discharged after the detection is completed, the operation mode efficiency of the liquid crystal screen detection is very low, and the large labor cost needs to be consumed for detecting the liquid crystal screens in batches, so that the cost of the product is increased.
Simultaneously, in order to guarantee the accuracy that detects, during the material loading, need accurately place the LCD screen that awaits measuring according to the detection area who detects the platform to guarantee that visual detection equipment can carry out comprehensive, accurate detection to the LCD screen that awaits measuring, reduce the accidental error that exists among the testing process. In the existing visual detection equipment, after the liquid crystal screen is manually fed to the detection table, the liquid crystal screen needs to be placed at a proper position on the detection table so as to ensure the accuracy of subsequent liquid crystal screen detection, but the efficiency of liquid crystal screen detection is further reduced.
Disclosure of Invention
The invention aims to provide automatic liquid crystal display line AOI detection equipment which not only can realize automatic feeding and discharging of a liquid crystal display, but also can correct the position of the liquid crystal display during feeding, and greatly improves the detection efficiency of the liquid crystal display.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a liquid crystal display circuit AOI automatic check out test set, include frame, controlling means, set up in loading attachment, detection device, extracting device and unloader in the frame, wherein:
the feeding device comprises a front conveying mechanism, a position correcting mechanism and a front transfer mechanism, wherein the front conveying mechanism is arranged on the rack and used for conveying the liquid crystal screen to be detected, and the position correcting mechanism is arranged above the front conveying mechanism and used for correcting the position of the liquid crystal screen to be detected and transferring the liquid crystal screen to be detected to the front transfer mechanism;
the detection device is arranged behind the feeding device and comprises a transfer mechanism and a detection mechanism, the transfer mechanism can move along the longitudinal direction of the rack, the detection mechanism is arranged above the transfer mechanism, and the detection mechanism is used for detecting the liquid crystal screen to be detected;
the material taking device is arranged between the feeding device and the discharging device and comprises a feeding transfer mechanism and a discharging transfer mechanism, the feeding transfer mechanism transfers the liquid crystal screen to be detected on the front transfer mechanism to the transfer mechanism, and the discharging transfer mechanism transfers the liquid crystal screen detected by the detection mechanism on the transfer mechanism to the discharging device;
the blanking device is arranged behind the detection device and is used for conveying a good liquid crystal screen and a bad liquid crystal screen;
the feeding device, the detection device, the taking device and the discharging device respectively work through the control device.
Preferably, the position correcting mechanism includes a first image capturing unit, a first grasping unit, and a moving unit, wherein:
the first image capturing assembly is arranged right above the front conveying mechanism and used for capturing images of the passing liquid crystal screen to be detected;
the first grabbing component comprises a first mounting seat, a rotating piece and a first sucker, the first mounting seat is located above the front conveying mechanism, the rotating piece is arranged on the first mounting seat, the first sucker is arranged on the rotating piece, and the first sucker is used for grabbing a liquid crystal screen to be detected and can drive the first sucker to rotate through the rotating piece;
the moving assembly comprises a transverse moving piece, a longitudinal moving piece and a vertical moving piece, the transverse moving piece is arranged on the side edge of the front conveying mechanism, the longitudinal moving piece is arranged on the transverse moving piece and moves in the transverse direction of the front conveying mechanism through the transverse moving piece, the vertical moving piece is arranged on the longitudinal moving piece and moves in the longitudinal direction of the front conveying mechanism through the longitudinal moving piece, and the first mounting seat is arranged on the vertical moving piece and moves in the vertical direction of the front conveying mechanism through the vertical moving piece.
Preferably, the transverse moving piece comprises a first base, a transverse moving screw rod, a transverse moving motor and a transverse moving slide seat, the first base is arranged on the rack, the transverse moving screw rod is rotationally arranged on the first base and is driven by the transverse moving motor, and the transverse moving slide seat is matched with the transverse moving screw rod;
the longitudinal moving piece comprises a second base, a longitudinal moving screw rod, a longitudinal moving motor and a longitudinal moving sliding seat, the second base is fixedly arranged on the transverse moving sliding seat, the longitudinal moving screw rod is rotatably arranged on the second base and is driven by the longitudinal moving motor, and the longitudinal moving sliding seat is matched with the longitudinal moving screw rod;
the vertical moving piece comprises a third base, a vertical guide rail and a vertical moving cylinder, the third base is fixedly arranged on the vertical moving sliding seat, the vertical guide rail and the vertical moving cylinder are both arranged on the third base, and the first mounting seat is arranged on the vertical guide rail and is driven by the vertical moving cylinder to move along the vertical guide rail;
the rotating part comprises a servo motor and a connecting seat, the servo motor is arranged on the first mounting seat, the connecting seat is arranged below the first mounting seat and connected with a machine shaft of the servo motor, and the first suction disc is fixedly arranged on the connecting seat.
Preferably, the front transfer mechanism comprises a front transfer table and a front overturning assembly; the front transfer table and the front overturning assembly are sequentially arranged behind the front conveying mechanism, and the first grabbing assembly is used for transferring the liquid crystal screen to be detected after the position is corrected to the front transfer table through the moving assembly; the front overturning component comprises an overturning seat, an overturning motor, an overturning shaft, a second sucker and an angle sensor, wherein the overturning seat is arranged on the rack, the overturning motor is arranged on the overturning seat, the overturning shaft is rotationally arranged on the overturning seat and connected with a crankshaft of the overturning motor, the second sucker and the angle sensor are connected to the overturning shaft and rotate along with the overturning shaft, and the second sucker is used for grabbing a liquid crystal screen to be detected on the front middle turntable.
Preferably, the transferring mechanism comprises a fourth base, a transferring screw rod, a transferring motor, a transferring slide seat and a transferring platform, the fourth base is longitudinally arranged on the frame, the transferring screw rod is rotatably arranged on the fourth base and is driven by the transferring motor, the transferring slide seat is matched with the transferring screw rod, and the transferring platform is fixedly arranged on the transferring slide seat; a first support is arranged above the fourth base; the detection mechanism comprises a fifth base, a detection screw rod, a detection motor, a detection sliding seat, a second mounting seat and a second image capturing assembly, the fifth base is transversely arranged on the first support, the detection screw rod is rotatably arranged on the fifth base and driven by the detection motor, the detection sliding seat is matched with the detection screw rod, the second mounting seat is fixedly arranged on the detection sliding seat, and the second image capturing assembly is arranged on the second mounting seat and can move to the position right above the image moving platform.
Preferably, the second is got for instance the subassembly and is included camera, third mount pad, light source, code reader and apart from digital display, the camera is located on the second mount pad, the third mount pad is frame shape structure, and it sets firmly on the second mount pad to be located the front side of camera, the light source is located on the third mount pad with code reader, apart from digital display locates on the second mount pad.
Preferably, the number of the detection devices at least comprises four, the detection devices are sequentially arranged in parallel, and the material taking device is arranged between the feeding device and the discharging device and arranged along the transverse direction of the detection devices.
Preferably, feeding transfer mechanism and the transfer mechanism of unloading all include sixth base, band pulley subassembly, transfer the motor, transfer the slide and the second snatchs the subassembly, be equipped with the second support in the frame, the sixth base transversely sets up on the second support, the band pulley subassembly is located in the sixth base, and passes through it drives to transfer the motor, it locates on the sixth base to transfer the slide, and pass through the band pulley subassembly drives and removes, the second snatchs the subassembly and sets firmly on transferring the slide, the second of feeding transfer mechanism snatchs the subassembly and will transfer the LCD screen that awaits measuring in the preceding transfer mechanism extremely on moving the mechanism, the second of the transfer mechanism of unloading snatchs the subassembly and will move and carry the mechanism's warp the LCD screen that detection mechanism detected and transfer extremely unloader.
Preferably, the second grabbing component comprises a screw module, a fourth mounting seat and a third sucker, the screw module is fixedly arranged on the transfer sliding seat, the fourth mounting seat is connected to the screw module, and the third sucker is arranged at the bottom of the fourth mounting seat and used for grabbing the liquid crystal screen on the liquid crystal screen to be detected/transfer mechanism on the front transfer mechanism; the below of sixth base is equipped with the mounting bracket, be equipped with ion fan on the mounting bracket, just ion fan is located each detection mechanism's top.
Preferably, the blanking device comprises a rear conveying mechanism and a blanking mechanism, the rear conveying mechanism comprises a defective product conveying mechanism and a defective product conveying mechanism, the blanking mechanism is arranged between the defective product conveying mechanism and the defective product conveying mechanism, the blanking mechanism comprises a seventh base, a blanking lead screw, a blanking motor, a blanking slide seat and a rear overturning component, the seventh base is longitudinally arranged on the frame, the blanking lead screw is rotatably arranged on the seventh base and is driven by the blanking motor, the blanking slide seat is matched with the blanking lead screw, the rear overturning component is fixedly arranged on the blanking slide seat, the structure of the rear overturning component is consistent with that of the front overturning component, the defective liquid crystal screen transferred by the transfer mechanism is placed in the defective product conveying mechanism, the defective liquid crystal screen transferred by the discharge transfer mechanism is placed in the rear overturning component, and the rear overturning assembly is transferred to a good product conveying mechanism.
After adopting the technical scheme, compared with the background technology, the invention has the following advantages:
1. according to the invention, the liquid crystal screen to be detected is transferred to the front transfer mechanism after the position is corrected by the feeding device, the liquid crystal screen to be detected on the front transfer mechanism is transferred to the transfer mechanism by the feeding transfer mechanism, the liquid crystal screen to be detected is moved to the position below the detection mechanism by the transfer mechanism for detection, and after the detection is finished, the liquid crystal screen on the transfer mechanism is transferred to the blanking device by the unloading transfer mechanism for blanking of good liquid crystal screens and bad liquid crystal screens, so that not only is the automatic blanking and loading of the liquid crystal screens realized, but also the position of the liquid crystal screen during the feeding can be corrected, and the liquid crystal screen detection efficiency is greatly improved.
2. The number of the detection devices at least comprises four detection devices which are arranged in parallel in sequence, and the detection devices can simultaneously carry out detection work through continuous feeding of the feeding and transferring mechanism and continuous discharging of the discharging and transferring mechanism, so that the detection efficiency of the liquid crystal screen is further improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the present invention (with the device housing removed);
FIG. 3 is a perspective view of the feeding device;
FIG. 4 is a schematic structural view of a position correcting mechanism;
FIG. 5 is one of the schematic illustrations of the installation of the first grasping element;
FIG. 6 is a second schematic view of the installation of the first gripper assembly;
FIG. 7 is a schematic structural view of the front relay mechanism;
FIG. 8 is a perspective view of the detection device;
FIG. 9 is a perspective view of the detection device (with the housing removed);
FIG. 10 is a schematic view illustrating the second image capturing assembly;
FIG. 11 is a perspective view of a reclaimer assembly;
FIG. 12 is a perspective view of the reclaimer assembly (with the frame removed);
FIG. 13 is a schematic view of the installation of the second grasping element;
fig. 14 is a perspective view of the blanking device.
Description of reference numerals:
1. the device comprises a rack, 2, a feeding device, 3, a detection device, 4, a material taking device, 5, a discharging device, 6, a liquid crystal screen to be detected and 7, a detected liquid crystal screen;
100. a front conveying mechanism;
200. the device comprises a position correction mechanism, 210, a first image capturing assembly, 220, a first grabbing assembly, 221, a first mounting seat, 222, a rotating member, 2221, a servo motor, 2222, a connecting seat, 223, a first sucker, 230, a moving assembly, 231, a transverse moving member, 2311, a first base, 2312, a transverse moving motor, 2313, a transverse moving slide seat, 232, a longitudinal moving member, 2321, a second base, 2322, a longitudinal moving motor, 2323, a longitudinal moving slide seat, 233, a vertical moving member, 2331, a third base, 2332, a vertical guide rail and 2333, and a vertical moving cylinder;
300. the rotary table comprises a front transfer mechanism, 310 a front transfer table, 320 a front overturning assembly, 321 an overturning seat, 322 an overturning motor, 323 an overturning shaft, 324 a second sucker and 325 an angle sensor;
400. a transfer mechanism, 410, a fourth base, 420, a transfer motor, 430, a transfer slide, 440, a transfer platform, 450, a first support;
500. the device comprises a detection mechanism, 510, a fifth base, 520, a detection motor, 530, a detection sliding seat, 540, a second mounting seat, 550, a second image capturing component, 551, a camera, 552, a third mounting seat, 553, a light source, 554, a code reader and 555, a distance digital display;
600. the device comprises a feeding transfer mechanism 700, a discharging transfer mechanism 671, a sixth base 672, a belt wheel assembly 673, a transfer motor 674, a transfer sliding seat 675, a second grabbing assembly 6751, a lead screw module 6752, a fourth mounting seat 6753, a third suction cup 676, a second support 677, a mounting frame 678 and an ion fan;
800. a rear conveying mechanism, 810 a defective product conveying mechanism, 820 a good product conveying mechanism;
900. the blanking mechanism, 910, a seventh base, 920, a blanking motor, 930, a blanking slide, 940, and a rear overturning assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
With reference to fig. 1 to 7, the invention discloses an automatic detection device for an AOI of a liquid crystal display line, which comprises a frame 1, a control device (not shown in the figure), a feeding device 2, a detection device 3, a material taking device 4 and a discharging device 5, wherein the feeding device 2, the detection device 3, the material taking device 4 and the discharging device are arranged on the frame 1.
The feeding device 2 comprises a front conveying mechanism 100, a position correcting mechanism 200 and a front transfer mechanism 300, wherein the front conveying mechanism 100 is arranged on the rack 1 and used for conveying the liquid crystal screen 6 to be detected, the position correcting mechanism 200 is arranged above the front conveying mechanism 100 and used for correcting the position of the liquid crystal screen 6 to be detected, and the liquid crystal screen 6 to be detected is transferred to the front transfer mechanism 300.
The position calibration mechanism 200 includes a first image capturing component 210, a first capturing component 220, and a moving component 230, wherein the first image capturing component 210 is disposed right above the front conveying mechanism 100 and is used for capturing images of the passing liquid crystal screen 6 to be detected, an infrared sensor can be disposed above the front conveying mechanism 100 to stop and operate the front conveying mechanism 100, and the shooting definition of the first image capturing component 210 is ensured.
The first grabbing component 220 comprises a first mounting base 221, a rotating piece 222 and a first sucker 223, the first mounting base 221 is located above the front conveying mechanism 100, the rotating piece 222 is arranged on the first mounting base 221, the first sucker 223 is arranged on the rotating piece 222, the first sucker 223 is used for grabbing the liquid crystal screen 6 to be detected, and the rotating piece 222 can drive the first sucker 223 to rotate. The rotating member 222 includes a servo motor 2221 and a connecting seat 2222, the servo motor 2221 is disposed on the first mounting seat 221, the connecting seat 2222 is disposed below the first mounting seat 221 and connected to a crankshaft of the servo motor 2221, and the first suction cup 223 is fixedly disposed on the connecting seat 2222.
The moving assembly 230 includes a traverse member 231, a vertical moving member 232, and a vertical moving member 233, the traverse member 231 is disposed at a side of the front conveying mechanism 100, the vertical moving member 232 is disposed on the traverse member 231 and moves in a lateral direction of the front conveying mechanism 100 through the traverse member 231, the vertical moving member 233 is disposed on the vertical moving member 232 and moves in a longitudinal direction of the front conveying mechanism 100 through the vertical moving member 232, and the first mounting seat 221 is disposed on the vertical moving member 233 and moves in a vertical direction of the front conveying mechanism 100 through the vertical moving member 233.
The traverse unit 231 includes a first base 2311, a traverse screw (not shown), a traverse motor 2312 and a traverse slide 2313, the first base 2311 is disposed on the frame 1, the traverse screw is rotatably disposed on the first base 2311 and driven by the traverse motor 2312, and the traverse slide 2313 is engaged with the traverse screw.
The longitudinal moving member 232 includes a second base 2321, a longitudinal moving screw rod (not shown), a longitudinal moving motor 2322 and a longitudinal moving slide 2323, the second base 2321 is fixed on the transverse moving slide 2313, the longitudinal moving screw rod is rotatably disposed on the second base 2321 and is driven by the longitudinal moving motor 2322, and the longitudinal moving slide 2323 is matched with the longitudinal moving screw rod.
The vertical moving member 233 includes a third base 2331, a vertical guide 2332 and a vertical moving cylinder 2333, the third base 2331 is fixedly disposed on the vertical moving sliding seat 2323, the vertical guide 2332 and the vertical moving cylinder 2333 are both disposed on the third base 2331, and the first mounting seat 221 is disposed on the vertical guide 2332 and is driven by the vertical moving cylinder 2333 to move along the vertical guide 2332.
The front transfer mechanism 300 includes a front transfer table 310 and a front turning component 320, the front transfer table 310 and the front turning component 320 are sequentially disposed behind the front conveying mechanism 100, and the first grabbing component 220 moves the liquid crystal panel 6 to be tested after being corrected to the front transfer table 310 through the moving component 230. The front overturning assembly 320 comprises an overturning seat 321, an overturning motor 322, an overturning shaft 323, a second sucker 324 and an angle sensor 325, the overturning seat 321 is arranged on the machine frame 1, the overturning motor 322 is arranged on the overturning seat 321, the overturning shaft 323 is rotatably arranged on the overturning seat 321 and connected with a crankshaft of the overturning motor 322, the second sucker 324 and the angle sensor 325 are both connected on the overturning shaft 323 and rotate along with the overturning shaft 323, the angle sensor 325 is used for detecting the overturning angle of the overturning shaft 323, so that the second sucker 324 is overturned in place, and the second sucker 324 is used for grabbing the liquid crystal screen 6 to be detected on the front middle rotating table 310.
After the first image capturing component 210 captures an image of the liquid crystal screen 6 to be measured on the front conveying mechanism 100, the image is compared with standard position data stored in the control device, so that the control device generates a position moving signal to the first capturing component 220, and the first capturing component 220 corrects the position of the liquid crystal screen 6 to be measured. After the first grabbing assembly 220 grabs and aligns the position of the liquid crystal screen 6 to be measured, the control device controls the horizontal moving piece 231, the vertical moving piece 232 and the vertical moving piece 233 to work, so that the first grabbing assembly 220 can move horizontally, vertically and vertically, and the liquid crystal screen 6 to be measured is transferred to the front transfer table 310.
As shown in fig. 2 and 8 to 10, the detection device 3 is disposed behind the feeding device 2, and includes a transferring mechanism 400 and a detection mechanism 500, the transferring mechanism 400 can move along the longitudinal direction of the rack 1, the detection mechanism 500 is disposed above the transferring mechanism 400, and the liquid crystal panel 6 to be detected is detected by the detection mechanism 500.
The transferring mechanism 400 includes a fourth base 410, a transferring screw (not shown), a transferring motor 420, a transferring slide 430 and a transferring platform 440, the fourth base 410 is longitudinally disposed on the frame 1, the transferring screw is rotatably disposed on the fourth base 410 and driven by the transferring motor 420, the transferring slide 430 is engaged with the transferring screw, the transferring platform 440 is fixedly disposed on the transferring slide 430, and a first support 450 is disposed above the fourth base 410.
The detecting mechanism 500 includes a fifth base 510, a detecting screw (not shown), a detecting motor 520, a detecting slide 530, a second mounting base 540 and a second image capturing assembly 550, the fifth base 510 is transversely disposed on the first support 450, the detecting screw is rotatably disposed on the fifth base 510 and driven by the detecting motor 520, the detecting slide 530 is matched with the detecting screw, the second mounting base 540 is fixedly disposed on the detecting slide 530, and the second image capturing assembly 550 is disposed on the second mounting base 540 and can move to a position right above the moving platform 440.
The second image capturing assembly 550 comprises a camera 551, a third mounting seat 552, a light source 553, a code reader 554 and a distance digital display 555, the camera 551 is arranged on the second mounting seat 540, the camera 551 collects image information of a liquid crystal screen on the shifting platform 440 and then processes the image information by a control device to identify good products and defective products, the third mounting seat 552 is of a frame-shaped structure and is fixedly arranged on the second mounting seat 540 and positioned on the front side of the camera 551, the light source 553 and the code reader 554 are arranged on the third mounting seat 552, the distance digital display 555 is arranged on the second mounting seat 540, and the distance digital display 555 is used for detecting the real-time distance between an object distance lens barrel and the liquid crystal screen of the camera 551.
In this embodiment, the number of the detecting devices 3 at least includes four, each detecting device 3 is sequentially arranged in parallel, and the material taking device 4 is arranged between the feeding device 2 and the discharging device 5 and arranged along the transverse direction of the detecting device 3.
As shown in fig. 2 and 11 to 13, the material taking device 4 is disposed between the material loading device 2 and the material unloading device 5, and includes a material feeding and transferring mechanism 600 and a material unloading and transferring mechanism 700, the material feeding and transferring mechanism 600 transfers the liquid crystal panel 6 to be detected on the front transfer mechanism 300 to the transferring mechanism 400, and the material unloading and transferring mechanism 700 transfers the liquid crystal panel detected by the detecting mechanism 500 on the transferring mechanism 400 to the material unloading device 5.
The feeding and transferring mechanism 600 and the discharging and transferring mechanism 700 both comprise a sixth base 671, a belt pulley assembly 672, a transferring motor 673, a transferring slide 674 and a second grabbing assembly 675, wherein a second support 676 is arranged on the frame 1, the sixth base 671 is transversely arranged on the second support 676, the belt pulley assembly 672 is arranged in the sixth base 671 and is driven by the transferring motor 673, and the transferring slide 674 is arranged on the sixth base 671 and is driven to move by the belt pulley assembly 672. The second grabbing component 675 is fixedly arranged on the transfer sliding seat 674, the second grabbing component 675 of the feeding transfer mechanism 600 transfers the liquid crystal screen 6 to be detected on the front transfer mechanism 300 to the transferring mechanism 400, and the second grabbing component 675 of the discharging transfer mechanism 700 transfers the liquid crystal screen detected by the detection mechanism 500 on the transferring mechanism 400 to the discharging device 5.
The second grabbing component 675 includes a screw module 6751, a fourth mounting seat 6752 and a third suction cup 6753, the screw module 6751 is fixedly disposed on the transferring slide 674, the fourth mounting seat 6752 is connected to the screw module 6751, and the third suction cup 6753 is disposed at the bottom of the fourth mounting seat 6752 and is used for grabbing the lcd panel to be tested on the lcd panel/transferring mechanism 400 on the front transfer mechanism 300. The below of sixth base 671 is equipped with mounting bracket 677, is equipped with ion fan 678 on mounting bracket 677, and ion fan 678 is located each detection mechanism 500's top, removes the static on the LCD screen through setting up ion fan 678, prevents that the static that produces from damaging the LCD screen.
As shown in fig. 2, 7 and 14, the blanking device 5 is disposed behind the detection device 3 and is used for conveying good-product liquid crystal screens and defective-product liquid crystal screens, the blanking device 5 includes a rear conveying mechanism 800 and a blanking mechanism 900, the rear conveying mechanism 800 includes a defective-product conveying mechanism 810 and a good-product conveying mechanism 820, and the blanking mechanism 900 is disposed between the defective-product conveying mechanism 810 and the good-product conveying mechanism 820. The discharging mechanism 900 includes a seventh base 910, a discharging screw rod (not shown), a discharging motor 920, a discharging slide 930 and a rear turnover component 940, the seventh base 910 is longitudinally disposed on the frame 1, the discharging screw rod is rotatably disposed on the seventh base 910 and driven by the discharging motor 920, the discharging slide 930 is matched with the discharging screw rod, the rear turnover component 940 is fixedly disposed on the discharging slide 930, the rear turnover component 940 has a structure consistent with that of the front turnover component 320, the defective liquid crystal screen transferred by the discharging transfer mechanism 700 is placed on the defective product conveying mechanism 810, the defective liquid crystal screen transferred by the discharging transfer mechanism 700 is placed on the rear turnover component 940, and the defective liquid crystal screen is transferred to the defective product conveying mechanism 820 by the rear turnover component 940.
The feeding device 2, the detection device 3, the material taking device 4 and the blanking device 5 respectively work through the control device, and the control device is used for realizing the operations of feeding, position correction, transfer, detection and blanking of the liquid crystal display screen.
The working process of the invention is as follows:
firstly, feeding and correcting positions of liquid crystal display
The liquid crystal screen 6 to be measured is conveyed forward to the position under the first image capturing component 210 through the front conveying mechanism 100, so that the first image capturing component 210 obtains the position of the liquid crystal screen 6 to be measured, and the first grabbing component 220 rotates the liquid crystal screen 6 to be measured by a proper angle according to the position so as to correct the feeding position of the liquid crystal screen 6 to be measured. Then, the first grabbing assembly 220 moves the lcd panel 6 to be tested to the front transfer table 310 by the moving assembly 230.
Secondly, taking and detecting
The second grabbing component 675 of the feeding and transferring mechanism 600 transversely moves onto the front transfer table 310 to grab the to-be-detected liquid crystal screen 6 on the front transfer table 310, and sequentially transfers the to-be-detected liquid crystal screen 6 to each detection device 3, so that the to-be-detected liquid crystal screen 6 is respectively loaded onto each moving platform 440, and then the moving platform 440 longitudinally moves to the second image capturing component 550 to perform image acquisition, thereby completing the detection of the liquid crystal screen.
Thirdly, blanking
The second grabbing component 675 of the discharging and transferring mechanism 700 moves transversely to each of the transfer platforms 440, grabs the liquid crystal panel detected on each of the transfer platforms 440, and transfers the liquid crystal panel to the upper side of the defective product conveying mechanism 810, and the defective liquid crystal panel is directly placed on the defective product conveying mechanism 810 for subsequent processing. For good-product liquid crystal screens, the rear overturning component 940 firstly moves to the position right below the second grabbing component 675, grabs the liquid crystal screens on the second grabbing component 675, then moves to the good-product conveying mechanism 820, and conveys the good-product liquid crystal screens backwards from the good-product conveying mechanism 820 for collection.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a liquid crystal display circuit AOI automatic check out test set which characterized in that: including frame, controlling means, set up in loading attachment, detection device, extracting device and unloader in the frame, wherein:
the feeding device comprises a front conveying mechanism, a position correcting mechanism and a front transfer mechanism, wherein the front conveying mechanism is arranged on the rack and used for conveying the liquid crystal screen to be detected, and the position correcting mechanism is arranged above the front conveying mechanism and used for correcting the position of the liquid crystal screen to be detected and transferring the liquid crystal screen to be detected to the front transfer mechanism;
the detection device is arranged behind the feeding device and comprises a transfer mechanism and a detection mechanism, the transfer mechanism can move along the longitudinal direction of the rack, the detection mechanism is arranged above the transfer mechanism, and the detection mechanism is used for detecting the liquid crystal screen to be detected;
the material taking device is arranged between the feeding device and the discharging device and comprises a feeding transfer mechanism and a discharging transfer mechanism, the feeding transfer mechanism transfers the liquid crystal screen to be detected on the front transfer mechanism to the transfer mechanism, and the discharging transfer mechanism transfers the liquid crystal screen detected by the detection mechanism on the transfer mechanism to the discharging device;
the blanking device is arranged behind the detection device and is used for conveying a good liquid crystal screen and a bad liquid crystal screen;
the feeding device, the detection device, the taking device and the discharging device respectively work through the control device.
2. The automatic liquid crystal display line AOI detection equipment as claimed in claim 1, wherein: the position correction mechanism comprises a first image capturing assembly, a first grabbing assembly and a moving assembly, wherein:
the first image capturing assembly is arranged right above the front conveying mechanism and used for capturing images of the passing liquid crystal screen to be detected;
the first grabbing component comprises a first mounting seat, a rotating piece and a first sucker, the first mounting seat is located above the front conveying mechanism, the rotating piece is arranged on the first mounting seat, the first sucker is arranged on the rotating piece, and the first sucker is used for grabbing a liquid crystal screen to be detected and can drive the first sucker to rotate through the rotating piece;
the moving assembly comprises a transverse moving piece, a longitudinal moving piece and a vertical moving piece, the transverse moving piece is arranged on the side edge of the front conveying mechanism, the longitudinal moving piece is arranged on the transverse moving piece and moves in the transverse direction of the front conveying mechanism through the transverse moving piece, the vertical moving piece is arranged on the longitudinal moving piece and moves in the longitudinal direction of the front conveying mechanism through the longitudinal moving piece, and the first mounting seat is arranged on the vertical moving piece and moves in the vertical direction of the front conveying mechanism through the vertical moving piece.
3. The automatic liquid crystal display line AOI detection equipment as claimed in claim 2, wherein:
the transverse moving piece comprises a first base, a transverse moving screw rod, a transverse moving motor and a transverse moving sliding seat, the first base is arranged on the rack, the transverse moving screw rod is rotationally arranged on the first base and is driven by the transverse moving motor, and the transverse moving sliding seat is matched with the transverse moving screw rod;
the longitudinal moving piece comprises a second base, a longitudinal moving screw rod, a longitudinal moving motor and a longitudinal moving sliding seat, the second base is fixedly arranged on the transverse moving sliding seat, the longitudinal moving screw rod is rotatably arranged on the second base and is driven by the longitudinal moving motor, and the longitudinal moving sliding seat is matched with the longitudinal moving screw rod;
the vertical moving piece comprises a third base, a vertical guide rail and a vertical moving cylinder, the third base is fixedly arranged on the vertical moving sliding seat, the vertical guide rail and the vertical moving cylinder are both arranged on the third base, and the first mounting seat is arranged on the vertical guide rail and is driven by the vertical moving cylinder to move along the vertical guide rail;
the rotating part comprises a servo motor and a connecting seat, the servo motor is arranged on the first mounting seat, the connecting seat is arranged below the first mounting seat and connected with a machine shaft of the servo motor, and the first suction disc is fixedly arranged on the connecting seat.
4. The automatic liquid crystal display line AOI detection equipment as claimed in claim 2, wherein: the front transfer mechanism comprises a front transfer table and a front overturning assembly; the front transfer table and the front overturning assembly are sequentially arranged behind the front conveying mechanism, and the first grabbing assembly is used for transferring the liquid crystal screen to be detected after the position is corrected to the front transfer table through the moving assembly; the front overturning component comprises an overturning seat, an overturning motor, an overturning shaft, a second sucker and an angle sensor, wherein the overturning seat is arranged on the rack, the overturning motor is arranged on the overturning seat, the overturning shaft is rotationally arranged on the overturning seat and connected with a crankshaft of the overturning motor, the second sucker and the angle sensor are connected to the overturning shaft and rotate along with the overturning shaft, and the second sucker is used for grabbing a liquid crystal screen to be detected on the front middle turntable.
5. The automatic liquid crystal display line AOI detection equipment as claimed in claim 1, wherein: the transferring mechanism comprises a fourth base, a transferring screw rod, a transferring motor, a transferring slide seat and a transferring platform, wherein the fourth base is longitudinally arranged on the rack, the transferring screw rod is rotatably arranged on the fourth base and is driven by the transferring motor, the transferring slide seat is matched with the transferring screw rod, and the transferring platform is fixedly arranged on the transferring slide seat; a first support is arranged above the fourth base; the detection mechanism comprises a fifth base, a detection screw rod, a detection motor, a detection sliding seat, a second mounting seat and a second image capturing assembly, the fifth base is transversely arranged on the first support, the detection screw rod is rotatably arranged on the fifth base and driven by the detection motor, the detection sliding seat is matched with the detection screw rod, the second mounting seat is fixedly arranged on the detection sliding seat, and the second image capturing assembly is arranged on the second mounting seat and can move to the position right above the image moving platform.
6. The automatic liquid crystal display line AOI detection equipment as claimed in claim 5, wherein: the second is got for instance the subassembly and is included camera, third mount pad, light source, code reader and apart from digital display, the camera is located on the second mount pad, the third mount pad is the frame shape structure, and it sets firmly on the second mount pad, and is located the front side of camera, the light source is located on the third mount pad with code reader, apart from digital display locates on the second mount pad.
7. The automatic liquid crystal display line AOI detection equipment as claimed in any one of claims 1-6, wherein: the number of the detection devices at least comprises four, the detection devices are sequentially arranged in parallel, and the material taking device is arranged between the feeding device and the discharging device and is transversely arranged along the detection devices.
8. The automatic liquid crystal display line AOI detection equipment as claimed in claim 7, wherein: the feeding transfer mechanism and the unloading transfer mechanism both comprise a sixth base, a belt pulley assembly, a transfer motor, a transfer slide seat and a second grabbing assembly, a second support is arranged on the frame, the sixth base is transversely arranged on the second support, the belt pulley assembly is arranged in the sixth base and is driven by the transfer motor, the transfer slide seat is arranged on the sixth base and is driven by the belt pulley assembly to move, the second grabbing assembly is fixedly arranged on the transfer slide seat, the second grabbing assembly of the feeding transfer mechanism transfers a to-be-detected liquid crystal screen on the front transfer mechanism to the transfer mechanism, and the second grabbing assembly of the unloading transfer mechanism transfers the to-be-detected liquid crystal screen on the transfer mechanism to the unloading device.
9. The automatic liquid crystal display line AOI detection equipment according to claim 8, wherein: the second grabbing component comprises a screw rod module, a fourth mounting seat and a third sucker, the screw rod module is fixedly arranged on the transfer sliding seat, the fourth mounting seat is connected to the screw rod module, and the third sucker is arranged at the bottom of the fourth mounting seat and used for grabbing the liquid crystal screen on the liquid crystal screen to be detected/the liquid crystal screen on the transfer mechanism on the front transfer mechanism; the below of sixth base is equipped with the mounting bracket, be equipped with ion fan on the mounting bracket, just ion fan is located each detection mechanism's top.
10. The automatic liquid crystal display line AOI detection equipment as claimed in claim 4, wherein: the blanking device comprises a rear conveying mechanism and a blanking mechanism, the rear conveying mechanism comprises a defective product conveying mechanism and a defective product conveying mechanism, the blanking mechanism is arranged between the defective product conveying mechanism and the defective product conveying mechanism, the blanking mechanism comprises a seventh base, a blanking lead screw, a blanking motor, a blanking slide seat and a rear overturning component, the seventh base is longitudinally arranged on the frame, the blanking lead screw is rotatably arranged on the seventh base and driven by the blanking motor, the blanking slide seat is matched with the blanking lead screw, the rear overturning component is fixedly arranged on the blanking slide seat, the structure of the rear overturning component is consistent with that of the front overturning component, the defective liquid crystal screen of the unloading and transferring mechanism is arranged in the defective product conveying mechanism, the defective liquid crystal screen transferred by the unloading and transferring mechanism is arranged in the rear overturning component, and the rear overturning assembly is transferred to a good product conveying mechanism.
CN201911347985.4A 2019-12-24 2019-12-24 Automatic detection equipment for liquid crystal display line AOI Pending CN110908156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911347985.4A CN110908156A (en) 2019-12-24 2019-12-24 Automatic detection equipment for liquid crystal display line AOI

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911347985.4A CN110908156A (en) 2019-12-24 2019-12-24 Automatic detection equipment for liquid crystal display line AOI

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Publication Number Publication Date
CN110908156A true CN110908156A (en) 2020-03-24

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Application Number Title Priority Date Filing Date
CN201911347985.4A Pending CN110908156A (en) 2019-12-24 2019-12-24 Automatic detection equipment for liquid crystal display line AOI

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112782879A (en) * 2021-01-07 2021-05-11 厦门福信光电集成有限公司 Automatic large-size liquid crystal display AOI inspection machine
CN114226264A (en) * 2021-11-24 2022-03-25 富鼎电子科技(嘉善)有限公司 Material detection equipment
CN116300166A (en) * 2023-05-17 2023-06-23 成都思越智能装备股份有限公司 Multi-station detection mechanism and detection device for LCD screen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112782879A (en) * 2021-01-07 2021-05-11 厦门福信光电集成有限公司 Automatic large-size liquid crystal display AOI inspection machine
CN112782879B (en) * 2021-01-07 2024-03-05 厦门福信光电集成有限公司 Automatic large-size liquid crystal display AOI inspection machine
CN114226264A (en) * 2021-11-24 2022-03-25 富鼎电子科技(嘉善)有限公司 Material detection equipment
CN116300166A (en) * 2023-05-17 2023-06-23 成都思越智能装备股份有限公司 Multi-station detection mechanism and detection device for LCD screen

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