CN216900289U - LGP-AOI detection device - Google Patents

LGP-AOI detection device Download PDF

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Publication number
CN216900289U
CN216900289U CN202123299046.2U CN202123299046U CN216900289U CN 216900289 U CN216900289 U CN 216900289U CN 202123299046 U CN202123299046 U CN 202123299046U CN 216900289 U CN216900289 U CN 216900289U
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China
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module
lgp
sets
feeding
light source
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CN202123299046.2U
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Chinese (zh)
Inventor
王苏川
丁昊
路兆亮
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Songzhi Intelligent Technology Suzhou Co ltd
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Songzhi Intelligent Technology Suzhou Co ltd
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Abstract

The utility model discloses an LGP-AOI detection device which comprises a feeding and conveying module, a taking module, a carrier table lighting module, a CCD detection module and a discharging module, wherein the taking module is arranged above the feeding and conveying module and positioned at the middle rear side of the taking module, the carrier table lighting module is arranged at the rear side of the taking module, the moving direction of a carrier table on the carrier table lighting module is consistent with the feeding direction of the feeding and conveying module, the CCD detection module is arranged above the carrier table lighting module, the CCD detection module is positioned at the rear side of the taking module, and the discharging module is arranged at the rear side of the CCD detection module. The LGP-AOI detection device has a compact structure, and each module in the LGP-AOI detection device is reasonably distributed, so that the occupied space can be reduced; the LGP to be detected can be automatically detected, the detection efficiency is high, manpower is not consumed, and qualified products and defective LGP products can be automatically placed separately; when debugging a new product, the debugging speed is high, and the working efficiency can be improved.

Description

LGP-AOI detection device
Technical Field
The utility model relates to the field of machine vision, in particular to an LGP-AOI detection device.
Background
The LGP is a light source device used for ensuring the back of the liquid crystal display screen to emit light, the LGP is named as a light guide plate, the liquid crystal display device is transparent and can not emit light, so the LGP is required to assist, indexes such as the brightness and the uniformity of the LGP have direct influence on the relevant performance of the liquid crystal display screen, professional LGP defect detection equipment is required to be used for lighting detection on the LGP in the LGP production process, and the conventional LGP defect detection equipment can automatically separate qualified products from defective products.
The existing LGP defect detection equipment has the following defects: firstly, the detection system needs manual verification on the detection condition of the defects, and the labor consumption is large; secondly, the detection system consumes time in adapting to debugging of new products, and usually the shutdown debugging takes 2-3 days, so that the production efficiency is greatly influenced; thirdly, the detection device generally exists in a manual operation mode, and the labor cost is high.
Disclosure of Invention
An object of the present invention is to provide an LGP-AOI detecting device that addresses the existing problems described in the background art.
In order to achieve the purpose, the utility model is realized by the following technical scheme: the LGP-AOI detection device comprises a feeding and conveying module, a taking module, a carrier table lighting module, a CCD detection module and a discharging module, wherein the taking module is arranged above the feeding and conveying module and is positioned at the middle rear side of the taking module, the carrier table lighting module is arranged at the rear side of the taking module, the moving direction of a carrier table on the carrier table lighting module is consistent with the feeding direction of the feeding and conveying module, the CCD detection module is arranged above the carrier table lighting module, the CCD detection module is positioned at the rear side of the taking module, and the discharging module is arranged at the rear side of the CCD detection module.
As a further improvement of the LGP-AOI detection device, the LGP-AOI detection device further comprises a cleaning module, wherein the cleaning module is arranged on the feeding conveying module and is positioned at the front side of the material taking module. Through setting up clean module, can clean the LGP that awaits measuring, improve the accuracy that detects.
As a further improvement of the LGP-AOI detection device, the feeding and conveying module is a conveyor belt device driven by a motor. The automatic conveying of the LGP to be detected is facilitated by arranging the conveyor belt device driven by the motor.
As a further improvement of the LGP-AOI detection device, the material taking module and the material placing module respectively comprise a support, a linear module, a fixing seat, an air cylinder, a lifting seat plate and a traceless adsorption assembly, the linear module is arranged on the support, the fixing seat is fixedly arranged on a moving seat of the linear module, the air cylinder is arranged on the fixing seat and vertically arranged, the lower end of a push rod of the air cylinder is fixedly connected with the lifting seat plate, the traceless adsorption assembly is arranged at the bottom of the lifting seat plate, and the traceless adsorption assembly is connected with a vacuum assembly through a guide pipe. Through the arrangement, the material taking module and the material placing module can grab the LGP to be detected, move along the direction of the linear module, and release the material after moving to the preset position, so that subsequent operation processing is facilitated.
As a further improvement of the LGP-AOI detection device, a dust-free drag chain is further arranged on the linear modules of the material taking module and the material placing module, and a guide pipe connected with the air cylinder and the traceless adsorption assembly is connected to the vacuum assembly through the dust-free drag chain. Through setting up dustless tow chain, can protect the pipe, ensure the unobstructed of pipe.
As a further improvement of the LGP-AOI detection device, the carrier table lighting module comprises double guide rails, a driving device, a carrier table, a backlight and side light sources, the carrier table is arranged on the double guide rails, the arrangement direction of the double guide rails is consistent with the conveying direction of the feeding conveying module, the driving device can drive the carrier table to move along the double guide rails, the backlight is fixedly arranged between the double guide rails and located below the carrier table, the number of the side light sources is two, the two side light sources are respectively arranged beside the two guide rails, the height of the side light sources is adaptive to that of the carrier table, an LGP loading part to be detected is arranged on the carrier table, a light transmission area is arranged on the LGP loading part to be detected, an LED light source is further arranged on the front side of the LGP loading part to be detected on the carrier table, and the arrangement direction of the LED light source is perpendicular to the arrangement direction of the side light sources. Through the arrangement, the carrier table can carry the LGP to be detected at the position of the material taking module, the LGP to be detected is moved to the position below the CCD detection module to be detected, the lightened backlight and sidelight can be provided for the LGP to be detected in the detection process, and the LGP is conveyed to the position of the material placing module after the detection is finished.
As a further improvement of the LGP-AOI detection device, the CCD detection module comprises a fixed support and a linear array camera, an area array camera, a coaxial light source and a linear scanning cross light source which are fixed on the fixed support, lenses of the linear array camera and the area array camera are both vertically arranged downwards, the linear scanning cross light source is arranged at the front side part of the fixed support, the linear array camera is arranged above the linear scanning cross light source, the coaxial light source is arranged at the middle part of the fixed support, the heights of the linear scanning cross light source and the coaxial light source are higher than the height of an LGP to be detected on the carrier table, the area array camera is arranged at the rear side part of the fixed support, and the backlight is arranged below the area array camera. Through the arrangement, the line scanning cross light source can be combined with the linear array camera to perform line scanning on the LGP to be detected to detect defects on the LGP, the area array camera and the coaxial light source are combined to perform surface scanning on the LGP to be detected to detect the defects on the LGP, and the detection accuracy is improved through the combination of the line scanning and the surface scanning.
As a further improvement of the LGP-AOI detection device, the linear array camera and the area array camera are both arranged on an adjusting seat with adjustable height. The linear array camera and the area array camera are arranged on the adjusting seat, and the heights of the linear array camera and the area array camera can be adjusted, so that focusing can be adjusted conveniently, and the detection accuracy is improved.
As a further improvement of the LGP-AOI detection device, the LGP-AOI detection device further comprises an output module, wherein the output module is arranged below the material placing module and is a conveyor belt driven by a motor, and the arrangement direction of the output module is consistent with the conveying direction of the feeding conveying module. By arranging the output module, the detection can be completed, and the qualified LGP can be conveyed to a preset position.
As a further improvement of the LGP-AOI detection device, the LGP-AOI detection device further comprises an NG table, and the NG table is arranged below the emptying module. By arranging the NG table, the LGP storage device can be used for storing LGP products with detected defects.
The utility model has the positive effects that: 1) the LGP-AOI detection device can automatically detect the LGP to be detected, does not need manual participation in the detection process, has high detection efficiency, does not need to consume manual work, and can automatically place qualified products and defective LGP products separately; 2) when a new product is debugged, the LGP-AOI detection device is high in debugging speed, can be put into use only by adjusting the heights of the linear array camera and the area array camera and adjusting the material taking module and the material placing module, is high in debugging speed, and can be debugged only in 1 hour generally, so that the downtime is greatly shortened, and the working efficiency is improved; 3) the LGP-AOI detection device has a compact structure, and the distribution of each module in the LGP-AOI detection device is reasonable, so that the overall volume of the LGP-AOI detection device can be reduced, and the occupied space can be reduced.
Drawings
FIG. 1 is a schematic view showing the construction of an LGP-AOI inspection apparatus according to the present invention.
FIG. 2 is a schematic view showing the internal structure of an LGP-AOI inspection apparatus of the present invention.
Fig. 3 is a schematic view of a take-off module.
Fig. 4 is a schematic structural diagram of the carrier table lighting module.
Fig. 5 is a schematic structural diagram of the CCD detection module.
Fig. 6 is a schematic structural diagram of a coaxial light source.
Fig. 7 is a schematic structural diagram of a line-scan cross light source.
The reference numerals in the figures are as follows: the device comprises a feeding conveying module 1, a cleaning module 2, a material taking module 3, a support 31, a linear module 32, a fixed seat 33, an air cylinder 34, a lifting seat plate 35, a traceless adsorption component 36, a dust-free drag chain 37, a carrier table lighting module 4, a double guide rail 41, a carrier table 42, a backlight 43, a side light source 44, an LED light source 45, a light transmitting area 46, a CCD detection module 5, a fixed support 51, a linear array camera 52, an area array camera 53, a coaxial light source 54, a linear scanning cross light source 55, an adjusting seat 56, a material placing module 6, an output module 7, an NG table 8 and a shell 9.
Detailed Description
The technical solutions of the present invention are described clearly and completely by the following embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 to 7 show an LGP-AOI inspection apparatus according to the present invention, which includes a feeding and conveying module 1, a material taking module 3, a carrier table lighting module 4, a CCD inspection module 5, a material discharging module 6, and a cleaning module 2.
As shown in fig. 1, in order to enable the LGP-AOI detection apparatus to perform LGP detection in an independent space, a housing 9 may be provided, the material taking module 3, the carrier table lighting module 4, the CCD detection module 5, and the material placing module 6 are all provided inside the housing 9, a material inlet is provided on the housing 9, a material feeding end of the material feeding and conveying module 1 is provided outside the housing 9, a material discharging end of the material feeding and conveying module 1 is provided inside the housing 9, the material feeding and conveying module 1 passes through the material inlet, the cleaning module 2 is provided on the material feeding and conveying module 1, and the cleaning module 2 is located near the material inlet on the housing 9. In order to facilitate the maintenance of the LGP-AOI inspection apparatus inside the housing 9 and the removal of the inspected non-defective LGP and the inspected non-defective LGP, an openable door may be provided on the housing 9, and in order to facilitate the observation of the operating state of the LGP-AOI inspection apparatus inside the housing 9, a transparent window may be provided on the housing door.
In order to display the working state of the LGP-AOI detection device conveniently, a controller is arranged on the housing 9, the controller is connected with the display screen, the working state of the LGP-AOI detection device can be checked through the display screen, and further, the working parameters of the LGP-AOI detection device can be set through external equipment such as a mouse and a keyboard, for example, the moving distance or the lifting height of the material taking module, the carrier table lighting module and the material placing module is set, the positions where the material taking module and the material placing module grab or release the LGP are set, and the process of scanning and detecting the LGP by the CCD detection module is set. By setting the working parameters, the material taking module 3, the carrier table lighting module 4, the CCD detection module 5 and the material placing module 6 can automatically detect the LGP according to a preset program.
It should be noted that although the implementation of the present invention relates to a software program, the software program controls the movement of the fixing seats on the material taking module, the carrier table lighting module and the material placing module and the grabbing of the LGP board is the prior art in the field of mechanical automation, and the software program controls the scanning and detecting process of the CCD detecting module to the LGP, the recognition of the picture, the defect analysis and other programs are also the prior art.
As shown in fig. 2, the feeding and conveying module 1 is a conveyor belt device driven by a motor. The feeding and conveying module 1 can move the LGP to be measured to the cleaning module 2 for cleaning, and the LGP is conveyed into the shell 9 after cleaning and reaches the lower part of the material taking module 3.
As shown in fig. 3, the material taking module 3 includes a support 31, a linear module 32, a fixing seat 33, a cylinder 34, a lifting seat plate 35 and a traceless adsorption assembly 36, the number of the support 31 is at least two, the linear module 32 is horizontally arranged on the support 31, the linear module 32 is arranged above the feeding conveying module 1 and is located at the middle rear side of the feeding conveying module 1, the arrangement direction of the linear module 32 can be arranged at a certain angle with the transmission direction of the feeding conveying module 1, for example, the arrangement direction of the linear module 32 can be perpendicular to the transmission direction of the feeding conveying module 1. The linear module is a linear transmission mechanism driven by a driving member and generally classified into a roller linear guide rail, a cylindrical linear guide rail, a ball linear guide rail and the like. The fixed base 33 is fixedly disposed on the movable base of the linear module 32. The cylinder 34 is arranged on the fixing seat 33, the cylinder 34 is vertically arranged, the lower end of a push rod of the cylinder 34 is fixedly connected with the lifting seat plate 35, the traceless adsorption component 36 is arranged at the bottom of the lifting seat plate 35, and the traceless adsorption component 36 is connected with the vacuum component through a guide pipe.
As shown in fig. 4, the carrier table lighting module includes a dual-guide rail 41, a driving device, a carrier table 42, a backlight 43 and a side light source 44, the dual-guide rail 41 is disposed at the rear side of the material taking module 3, the direction of the dual-guide rail 41 is the same as the conveying direction of the feeding and conveying module 1, the carrier table 42 is disposed on the dual-guide rail 41, the driving device can drive the carrier table 42 to move along the dual-guide rail 41, the driving device has many embodiments, and a driving device such as an air cylinder or an oil cylinder can be used, or a screw rod mechanism, a gear rack mechanism, etc. driven by a motor can be used. The backlight lamps 43 are fixedly arranged between the two guide rails 41 and located below the carrier table 42, two groups of side light sources 44 are provided, the two groups of side light sources 44 are respectively arranged beside the two guide rails, the height of the side light sources 44 is matched with that of the carrier table 42, the carrier table 42 is provided with an LGP loading part to be tested, the LGP loading part to be tested is provided with a light transmitting area 46, the front side of the LGP loading part to be tested on the carrier table 42 is also provided with an LED light source 45, and the arrangement direction of the LED light source 45 is perpendicular to that of the side light sources 44. Through the arrangement, the carrier table 42 can receive the LGP to be detected at the position of the material taking module 3, move the LGP to be detected to the lower part of the CCD detection module 5 for detection, provide lighted backlight and sidelight for the LGP to be detected in the detection process, and convey the LGP to the position of the material placing module 6 after the detection is finished.
As shown in fig. 5-7, the CCD detecting module 5 includes a fixing bracket 51, and a line camera 52, an area camera 53, a coaxial light source 54 and a line scanning cross light source 55 fixed on the fixing bracket 51, the fixing bracket 51 includes a vertical column, two upper beams arranged on the top of the vertical column and two middle beams arranged in the middle of the vertical column, the vertical column is respectively arranged at the outer sides of the dual-guide rails 41 of the carrier table lighting module 4, the upper beams and the middle beams are arranged above the dual-guide rails 41 of the carrier table lighting module 4, the line camera 52 and the lens of the line camera 53 are both arranged vertically downwards, the line scanning cross light source 55 is arranged on the middle beam at the front side of the fixing bracket 51, the line camera 52 is arranged on the upper beam at the front side of the fixing bracket 51, the coaxial light source 54 is arranged in the middle of the fixing bracket 51, the heights of the line scanning cross light source 55 and the coaxial light source 54 are higher than the height of the LGP to be detected on the carrier table 42, the area array camera 53 is disposed on the upper beam on the rear side of the fixing bracket 51, and the backlight 43 is disposed below the area array camera 53.
In order to facilitate the adjustment of focusing and improve the detection accuracy, the line camera 52 and the plane camera 53 are both disposed on a height-adjustable adjusting base 56.
As shown in fig. 2, the discharging module 6 has substantially the same structure as the material taking module 3, and the discharging module 6 is provided at the rear side of the double rail 41 of the carrier table lighting module 4.
As shown in fig. 3, in order to ensure the smoothness of the conduit connected to the cylinder 34 and the traceless adsorption assembly 36 and to enhance the protection of the conduit, dust-free drag chains 37 are further provided on the linear modules 32 of the material taking module 3 and the material placing module, and the conduit is connected to the vacuum assembly through the dust-free drag chains 37.
As shown in fig. 2, in order to facilitate the transportation of the LGP product which is finished and qualified after the detection to a predetermined position, the LGP-AOI detection apparatus further includes an output module 7, the output module 7 is disposed below the discharging module 6, the output module 7 is a conveyor belt driven by a motor, and the arrangement direction of the output module 7 is consistent with the transportation direction of the feeding transportation module 1.
As shown in fig. 2, in order to facilitate storage of the LGP products which are inspected and have defects, the LGP-AOI inspection apparatus further includes an NG stage 8, and the NG stage 8 is disposed below the discharging module 6.
The LGP-AOI detection device of the utility model is characterized in that when in work, an LGP to be detected is placed on a conveying belt of a feeding conveying module through a loading machine or manually, the conveying belt conveys the LGP to be detected to an inventory module under the driving of a motor, the LGP cleans dust on the surface of the LGP when passing through a cleaning module, the LGP is conveyed to the lower part of a guide rail of a material taking module after passing through the cleaning module, a fixed seat on the guide rail moves to the upper part of the LGP to be detected, a push rod of an air cylinder is pushed downwards to enable a lifting seat plate to descend, a traceless adsorption component on the lower surface of the lifting seat plate is attached to the LGP to be detected, air is pumped by an air pump connected with the traceless adsorption component through a guide pipe to enable the traceless adsorption component to tightly adsorb the LGP to be detected, then the push rod of the air cylinder contracts to enable the lifting seat plate to ascend, the LGP plate to be detected is grabbed and moves to the upper part of a light-on module of a carrier table along a linear module of the material taking module, the carrier table moves to the lower part of the LGP to be detected along the double rails under the driving of the driving device of the carrier table lighting module, the cylinder push rod of the material taking module is pushed out to enable the lifting seat plate to descend, the LGP to be detected reaches the carrier table, then the air pump supplies air to the traceless adsorption assembly, the adsorption force of the traceless adsorption assembly on the LGP to be detected disappears, the material taking module is reset, meanwhile, the carrier table moves to the lower part of the front side of the CCD detection module along the double rails under the driving of the driving device and is positioned below the linear array camera and the linear scanning cross light source, the LGP to be detected on the carrier table is scanned and detected through the linear array camera, after the detection is completed, the carrier table moves to the lower part of the planar array camera along the double rails, the carrier table is positioned above the backlight and between the two groups of side light sources, the backlight, the side light sources, the LED light source on the carrier table and the coaxial light source on the CCD detection module all emit light, the LGP to be detected is lightened, the LGP to be detected is scanned and detected through an area array camera, after detection is completed, a carrier table is moved to the lower portion of a material placing module, the material placing module and a material taking module are identical in structure, the action principle is basically the same, a fixing seat of the material placing module is moved to the upper portion of the carrier table, a lifting seat plate is lowered, a traceless adsorption component absorbs an LGP plate which is detected, then the lifting seat plate is lifted, according to the detection result of the LGP which is detected, if the LGP is qualified, the fixing seat is moved to an output module, the qualified LGP is conveyed to a preset position through a conveying belt of the output module, and if the LGP which is monitored is unqualified, the material placing module is placed on the NG table.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An LGP-AOI detection device, characterized in that: the material taking module is arranged above the feeding and conveying module and is positioned on the middle rear side of the material taking module, the carrier table lighting module is arranged on the rear side of the material taking module, the moving direction of the carrier table on the carrier table lighting module is consistent with the feeding direction of the feeding and conveying module, the CCD detecting module is arranged above the carrier table lighting module, the CCD detecting module is positioned on the rear side of the material taking module, and the material discharging module is arranged on the rear side of the CCD detecting module.
2. The LGP-AOI inspection device of claim 1, wherein: still include clean module, clean module sets up on feeding conveyor module to be located the front side of getting the material module.
3. The LGP-AOI inspection device of claim 2, wherein: the feeding and conveying module is a conveyor belt device driven by a motor.
4. The LGP-AOI inspection device of claim 1, wherein: get material module and blowing module all include support, sharp module, fixing base, cylinder, lift bedplate and no trace adsorption component, sharp module sets up on the support, and the fixing base is fixed to be set up on the removal seat of sharp module, the cylinder sets up on the fixing base, and the vertical setting of cylinder, the lower extreme and the lift bedplate fixed connection of the push rod of cylinder, no trace adsorption component sets up the bottom at the lift bedplate, and no trace adsorption component passes through the pipe and is connected with vacuum component.
5. The LGP-AOI inspection device according to claim 4, wherein: get and still be equipped with dustless tow chain on the sharp module of material module and blowing module, the pipe of being connected with cylinder and no trace adsorption component is connected to the vacuum component through dustless tow chain.
6. The LGP-AOI inspection device of claim 1, wherein: the utility model discloses a light module of carrier platform, including two guide rails, drive arrangement, the carrier platform, backlight and sidelight source, the carrier platform sets up on two guide rails, the direction of setting up of two guide rails is unanimous with the direction of transfer of feeding transport module, drive arrangement can drive the carrier platform and remove along two guide rails, the backlight is fixed to be set up between two guide rails, and be located the below of carrier platform, the sidelight source has two sets ofly, two sets of sidelight sources set up respectively by two guide rails, and the height of sidelight source suits with the height of carrier platform, be equipped with the LGP loading portion that awaits measuring on the carrier platform, be equipped with the light zone in the LGP loading portion that awaits measuring, the front side that lies in the LGP loading portion that awaits measuring on the carrier platform still is equipped with the LED light source, the direction that sets up of LED light source is perpendicular with the direction that sets up of sidelight source.
7. The LGP-AOI inspection device according to claim 6, wherein: CCD detection module include the fixed bolster and fix linear array camera, area array camera, coaxial light source and the line on the fixed bolster sweep alternately light source, the camera lens of linear array camera and area array camera all sets up vertically downwards, the line is swept alternately light source and is set up the front portion at the fixed bolster, the top of alternately light source is swept on line to the linear array camera setting, coaxial light source sets up the middle part at the fixed bolster, the line is swept alternately light source and coaxial light source highly be higher than the height of the LGP that awaits measuring on the carrier bench, the area array camera sets up the rear portion at the fixed bolster, just the backlight sets up the below at the area array camera.
8. The LGP-AOI detection apparatus of claim 7, wherein: the linear array camera and the area array camera are both arranged on the adjusting seat with adjustable height.
9. The LGP-AOI inspection device of claim 1, wherein: the automatic feeding device is characterized by further comprising an output module, wherein the output module is arranged below the discharging module and is a conveyor belt driven by a motor, and the arrangement direction of the output module is consistent with the conveying direction of the feeding conveying module.
10. The LGP-AOI inspection device of claim 1, wherein: still include NG platform, NG platform set up the below at the blowing module.
CN202123299046.2U 2021-12-24 2021-12-24 LGP-AOI detection device Active CN216900289U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123299046.2U CN216900289U (en) 2021-12-24 2021-12-24 LGP-AOI detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123299046.2U CN216900289U (en) 2021-12-24 2021-12-24 LGP-AOI detection device

Publications (1)

Publication Number Publication Date
CN216900289U true CN216900289U (en) 2022-07-05

Family

ID=82208732

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123299046.2U Active CN216900289U (en) 2021-12-24 2021-12-24 LGP-AOI detection device

Country Status (1)

Country Link
CN (1) CN216900289U (en)

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