CN212586263U - Automatic optical detection equipment for LCD module - Google Patents

Automatic optical detection equipment for LCD module Download PDF

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Publication number
CN212586263U
CN212586263U CN202020831033.1U CN202020831033U CN212586263U CN 212586263 U CN212586263 U CN 212586263U CN 202020831033 U CN202020831033 U CN 202020831033U CN 212586263 U CN212586263 U CN 212586263U
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display screen
placing plate
axis moving
axis
screen placing
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舒文宾
刘智超
谭建辉
刘品德
陈显锋
王会
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Suzhou Jiazhicai Optoelectronics Technology Co ltd
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Suzhou Jiazhicai Optoelectronics Technology Co ltd
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Abstract

An automatic optical detection device for LCD module comprises a frame, an LCD carrying mechanism and an optical detection mechanism, wherein each optical detection unit in the optical detection mechanism is provided with a feeding station, a detection station, a transmission mechanism and a phase-adjustable unit, a plurality of optical detection units are arranged side by side along a carrying assembly line, the carrying assembly line is fixedly arranged on the frame, the transmission mechanism is provided with two display screen placing plates, driven by the conveying mechanism, the two display screen placing plates reciprocate between the feeding station and the detection station, and one of the display screen placing plates can be driven by the transmission mechanism to ascend so as to enable the other display screen placing plate to pass below, the two display screen placing plates can perform alternate reciprocating motion in a vertical space without mutual interference, therefore, the optical detection equipment can feed the LCD screen while detecting the LCD screen, and utilizes the vertical space to perform alternate motion, thereby reducing the occupation of the horizontal space.

Description

Automatic optical detection equipment for LCD module
Technical Field
The utility model relates to a check out test set, concretely relates to automatic optical detection equipment of LCD module.
Background
Automatic optical inspection, also known as AOI, is an apparatus that performs inspection based on optical principles. The automatic detection equipment places an LCD screen to be detected in a detection station through a manual or mechanical arm, the machine collects images through a camera, the images are compared with qualified parameters in a database, and defects are detected through image processing.
The transport mechanism who carries the display screen to detecting the station in the display screen check out test set mainly has two kinds at present, one kind is the carousel, is provided with a plurality of display screens on the carousel and places the position, places the display screen conveying that the position was to different detection station through the carousel rotation with each display screen, and the shortcoming of this carousel is: if the screen body is large in size, the diameter of the turntable needs to be correspondingly increased, and the large-diameter turntable is not easy to process and manufacture and is easy to deform in the using process; the other type is a single-layer detection platform, a material conveying mechanism of the single-layer detection platform can horizontally move to convey the display screen to a detection station, after the detection is finished, the material conveying mechanism of the single-layer detection platform returns, the screen body is taken down, the next display screen can be loaded, the time for waiting loading and unloading is longer, and the detection efficiency is lower.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a LCD module automated optical inspection equipment mainly solves the problem that transport mechanism occupation space is big among the prior art, inefficiency.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an automatic optical detection device for an LCD module comprises a rack, an LCD carrying mechanism and an optical detection mechanism, wherein the optical detection mechanism consists of a plurality of optical detection units, each optical detection unit is provided with a detection station and a feeding station, and the optical detection unit is also provided with a conveying mechanism;
the conveying mechanism comprises a first display screen placing plate, a first reciprocating linear driving mechanism, a second display screen placing plate, a lifting mechanism and a second reciprocating linear driving mechanism; the first reciprocating linear driving mechanism acts on the first display screen placing plate and is used for driving the first display screen placing plate to do reciprocating motion between the loading station and the detection station, the lifting mechanism is arranged on the second reciprocating linear driving mechanism and is driven by the second reciprocating linear driving mechanism to do reciprocating motion between the loading station and the detection station, and the lifting mechanism acts on the second display screen placing plate and is used for driving the second display screen placing plate to ascend or descend;
the first display screen placing plate and the second display screen placing plate are both provided with an initial position;
when the initial position of the first display screen placing plate is in the feeding station and the initial position of the second display screen placing plate is in the detection station, the first display screen placing plate firstly moves towards the detection station, meanwhile, the second display screen placing plate is driven by the lifting mechanism to ascend and move towards the feeding station, and when the first display screen placing plate reaches and fills a vacancy left in the detection station after the second display screen placing plate ascends, the second display screen placing plate reaches the feeding station; then the second display screen placing plate is driven by the lifting mechanism to ascend and move towards the detection station, meanwhile, the first display screen placing plate moves towards the feeding station, and when the first display screen placing plate reaches and fills a vacancy reserved in the feeding station after the second display screen placing plate ascends, the second display screen placing plate reaches the detection station; the first display screen placing plate and the second display screen placing plate reciprocate between the detection station and the feeding station in the movement mode;
when the initial position of the first display screen placing plate is in the detection station and the initial position of the second display screen placing plate is in the feeding station, the first display screen placing plate firstly moves towards the feeding station, meanwhile, the second display screen placing plate is driven by the lifting mechanism to ascend and move towards the detection station, and when the first display screen placing plate reaches and fills a vacancy left in the feeding station after the second display screen placing plate ascends, the second display screen placing plate reaches the detection station; then the second display screen placing plate is driven by the lifting mechanism to ascend and move towards the loading station, meanwhile, the first display screen placing plate moves towards the detection station, and when the first display screen placing plate reaches and fills a vacant position left in the detection station after the second display screen placing plate ascends, the second display screen placing plate reaches the loading station; the first display screen placing plate and the second display screen placing plate reciprocate between the detection station and the feeding station in the movement mode.
Preferably, the first display screen placing plate and the second display screen placing plate both comprise adjustable clamps for clamping and fixing the display screens, each adjustable clamp comprises two clamping plates which are arranged in parallel relatively, one of the two clamping plates is fixedly connected to the top surface of the placing plate, the other clamping plate is connected to the placing plate in a sliding mode, and a screw and nut mechanism is further applied to the clamping plates.
Preferably, the conveying direction of the conveying mechanism is defined as a Y-axis direction, the first reciprocating linear driving mechanism is two linear motors or ball screw mechanisms, the second reciprocating linear driving mechanism is two linear motors or ball screw mechanisms, the two first reciprocating linear driving mechanisms are arranged in parallel relatively along the Y-axis direction, the first display screen placing plate is positioned between the two first reciprocating linear driving mechanisms, one second reciprocating linear driving mechanism is arranged at one side of the two first reciprocating linear driving mechanisms, the other second reciprocating linear driving mechanism is arranged at the other side of the two first reciprocating linear driving mechanisms, the second display screen placing plate is positioned between the two second reciprocating linear driving mechanisms, therefore, when the second display screen placing plate is driven by the lifting mechanism to ascend, the lower part of the second display screen placing plate forms a movement space of the first display screen placing plate.
Preferably, LCD transport mechanism is including transport assembly line and feeding mechanism, the transport assembly line is located material loading station top, the direction of delivery of transport assembly line with conveying mechanism's direction of delivery is perpendicular to this constitutes a plurality of optical detection unit and arranges side by side along the transport assembly line, feeding mechanism is a linear electric motor, and this linear electric motor end meets with transport assembly line head end, is equipped with the DD motor on the linear electric motor, and vision is counterpointed and the plummer, and the DD motor rotates with the plummer to be connected, is equipped with the space of placing of LCD screen on the plummer, bears the LCD screen at linear electric motor drive plummer with this and moves towards the transport assembly line.
Preferably, the conveying direction of the conveying mechanism is defined as a Y-axis direction, the conveying direction of the conveying assembly line is defined as an X-axis direction, and the direction perpendicular to the XY plane is defined as a Z-axis direction; the conveying production line comprises a long linear motor and at least two adsorption conveying mechanical hands, the long linear motor is fixedly arranged on the rack, each adsorption conveying mechanical hand is connected to the long linear motor in a sliding mode relative to the rack, each adsorption conveying mechanical hand reciprocates along the X axis under the driving of the long linear motor, the motion stroke of at least one adsorption conveying mechanical hand comprises the head end position of the conveying production line, and the motion stroke of at least one adsorption conveying mechanical hand comprises the tail end position of the conveying production line.
Preferably, adsorb transport manipulator includes transport mechanism and adsorption apparatus structure, transport mechanism is for extending the linear drive module of arranging along the Z axle, adsorption apparatus structure includes section bar frame and screen body sucking disc, and screen body sucking disc sets firmly in section bar frame below to this constitutes the absorption space of LCD screen, linear drive module's fixed part connect in on the transport assembly line, the motion part is fixed in on the section bar frame, with this drive each adsorb transport manipulator along X axle and Z axle reciprocating motion.
Preferably, the conveying direction of the conveying mechanism is defined as a Y-axis direction, the conveying direction of the conveying assembly line is defined as an X-axis direction, and the direction perpendicular to the XY plane is defined as a Z-axis direction; but detection station top is equipped with the phase modulation unit, but adjustable camera group includes a plurality of front view cameras and a plurality of camera that looks sideways at, front view camera with look sideways at the camera homogeneous phase for frame sliding connection in the frame, wherein, front view camera sets up with the visual angle along Z axle direction orientation detection station, looks sideways at the camera and constitutes the contained angle orientation detection station setting with visual angle and Z axle.
Preferably, the adjustable camera group comprises four front-view cameras, two X-axis moving mechanisms arranged in an extending manner along an X axis and two Y-axis moving mechanisms arranged in an extending manner along a Y axis, two front-view cameras are connected to one X-axis moving mechanism in a sliding manner relative to the rack, and the other two front-view cameras are connected to the other X-axis moving mechanism in a sliding manner relative to the rack, so that the front-view cameras are driven to move along the X axis; one end of each of the two X-axis moving mechanisms is connected to one Y-axis moving mechanism in a sliding mode relative to the rack, and the other end of each of the two X-axis moving mechanisms is connected to the other Y-axis moving mechanism in a sliding mode relative to the rack, so that the front-view camera is driven to move along the Y axis;
the two X-axis moving mechanisms, the two Y-axis moving mechanisms, the two X-axis moving mechanisms and the two Y-axis moving mechanisms are both bidirectional ball screw mechanisms, each bidirectional ball screw mechanism consists of a bidirectional screw rod and two nuts, each bidirectional screw rod consists of a left-handed screw rod and a right-handed screw rod which are coaxially connected, one of the two nuts is matched with the left-handed screw rod, and the other nut is matched with the right-handed screw rod;
when the X-axis moving mechanism is a bidirectional ball screw mechanism, one front-view camera is fixedly arranged on a nut of the left-handed screw, and the other front-view camera is fixedly arranged on a nut of the right-handed screw; when the Y-axis moving mechanism is a bidirectional ball screw mechanism, one end of one X-axis moving mechanism is fixedly arranged on the nut of the left-handed screw, and one end of the other X-axis moving mechanism is fixedly arranged on the nut of the right-handed screw.
Preferably, the adjustable camera group comprises two side-view cameras, two X-axis moving mechanisms arranged in an extending manner along an X-axis, and two Y-axis moving mechanisms arranged in an extending manner along a Y-axis, one side-view camera is connected to one X-axis moving mechanism in a sliding manner relative to the rack, the X-axis moving mechanism is connected to one Y-axis moving mechanism in a sliding manner relative to the rack, and the side-view camera can rotate relative to the side-view camera along the Y-axis; the other side-looking camera is connected to the other Y-axis moving mechanism in a sliding mode relative to the rack, the Y-axis moving mechanism is connected to the other X-axis moving mechanism in a sliding mode relative to the rack, and the side-looking camera can rotate along the X axis relative to the side-looking camera; thereby driving the movement or rotation of the two side view cameras in the XY plane.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, first display screen places board and second display screen and places board reciprocating motion between material loading station and detection station, one of them initial position is located the material loading station, another initial position is located the detection station, no matter first display screen places the board and is initially located the material loading station, or the second display screen places the board and is initially located the material loading station, in the in-process of both movements, it is when the board removes that first display screen places the board all the time, the board rises is placed to the second display screen, place the board with this second display screen and produce the space of dodging first display screen and placing the board motion below it, the space of vertical direction is utilized to the high efficiency, do not occupy too much horizontal space.
2. In the scheme, the adjustable clamps are arranged on the first display screen placing plate and the second display screen placing plate, so that the LCD display screens with different sizes can be positioned in a compatible mode.
3. In the above scheme, the two second reciprocating linear driving mechanisms are arranged outside the two first reciprocating linear driving mechanisms, so that the interference generated by the movement of the first display screen placing plate and the second display screen placing plate is avoided.
4. In the above-mentioned scheme, the conveying direction of the conveying assembly line is perpendicular to the conveying direction of the conveying mechanism, so that a plurality of optical detection units can be arranged side by side on one conveying assembly line, and the detection efficiency is improved.
5. In the above scheme, each adsorption carrying manipulator is driven by the long linear motor to reciprocate along the X axis, wherein at least one adsorption carrying manipulator comprises a head end position of a carrying assembly line in a movement stroke and is used for adsorbing an LCD screen to be detected and placing the LCD screen into a feeding station of each optical detection unit, and at least one adsorption carrying manipulator comprises a tail end position of the carrying assembly line in the movement stroke and is used for adsorbing the LCD screen which is detected completely from the feeding station of each optical detection unit.
6. In the scheme, the front-view cameras are symmetrically arranged on the X-axis moving mechanism and the Y-axis moving mechanism, so that the front-view cameras can be close to or far away from the central position of the LCD screen at the same time under the driving of the X-axis moving mechanism and the Y-axis moving mechanism, and the LOD screens with different sizes can be detected quickly and accurately.
7. In the scheme, each side-view camera can adjust the position in an XY plane under the driving of the X-axis moving mechanism and the Y-axis moving mechanism, and adjusts the focal position in cooperation with the rotation of the side-view camera along the X axis or the Y axis so as to be compatible with LCD screens with different sizes.
8. In the above scheme, feeding mechanism moves the LCD screen below adsorbing the transport manipulator, through the vision counterpoint, the DD motor is angle adjustment to guarantee that adsorbing the transport manipulator can accurately adsorb the LCD screen.
The working principle of the utility model is as follows:
the utility model provides an automatic optical detection equipment of LCD module, which comprises a frame, LCD transport mechanism and optical detection mechanism, wherein LCD transport mechanism is equipped with the transport assembly line and adsorbs the transport manipulator, each optical detection unit among the optical detection mechanism is equipped with the material loading station, detect the station, transport mechanism and phase modulation unit, the material loading station is corresponding to transport assembly line position, detect the station and correspond to adjustable camera group position, a plurality of optical detection unit set up side by side along the transport assembly line, adsorb the motion of transport manipulator along the transport assembly line, carry the LCD screen to the material loading station or remove the LCD screen from the material loading station, transport mechanism reciprocating motion between material loading station and detection station, and transport mechanism's two display screens place the board and alternate cyclic motion in vertical space, with this optical detection equipment can carry out the material loading of LCD screen when detecting the LCD screen.
The utility model has the advantages as follows:
1. the occupied space is small, the second display screen placing plate rises through the lifting mechanism to avoid the movement of the first display screen placing plate, and the second display screen placing plate and the first display screen placing plate complete alternate movement by utilizing the space in the vertical direction, so that the occupation of the horizontal space is reduced.
2. The detection efficiency is high, the first display screen is placed the board and the second display screen is placed the board and is detecting station and material loading station between reciprocating motion, when the detection station is accomplished to the detection, the material loading is accomplished to the material loading station, and is equipped with a plurality of optical detection unit on the transport assembly line, can realize detecting going on with the synchronization of material loading, also can realize detecting when a plurality of LCD screens.
3. The compatibility is good, the first display screen placing plate and the second display screen placing plate both comprise adjustable clamps for clamping and fixing the display screens, and the front-view camera and the side-view camera in the phase modulation unit can be adjusted in position and angle in an XY plane, so that the LCD screens with different sizes are compatible.
Drawings
FIG. 1 is a perspective view of an automatic optical inspection apparatus for LCD modules;
FIG. 2 is a perspective view of an optical detection unit;
FIG. 3 is a perspective view of the transport mechanism;
FIG. 4 is an assembled perspective view of the optical inspection unit and the handling line;
FIG. 5 is a perspective view of an adsorption carrying manipulator;
FIG. 6 is a perspective view of a front view camera portion of a phase adjustable unit;
FIG. 7 is a perspective view of a side view camera portion of a phase adjustable unit;
in the above drawings: 1. adsorbing and carrying the mechanical arm; 101. a carrying mechanism; 102. a profile frame; 103. a screen body sucker; 2. detecting a station; 3. a feeding station; 4. a transport mechanism; 401. a first display screen placement board; 402. a first reciprocating linear drive mechanism; 403. a second display screen placement board; 404. a lifting mechanism; 405. a second reciprocating linear drive mechanism; 5. a phase adjustable unit; 501. a front-view camera; 502. a side view camera; an X-axis moving mechanism; a Y-axis movement mechanism; 505. a Z-axis movement mechanism; 6. an optical detection unit; 7. a carrying assembly line; 8. a feeding mechanism.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): automatic optical detection equipment for LCD module
The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.
As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.
As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
Referring to fig. 1 to 7, an automatic optical detection device for an LCD module comprises a frame, an LCD carrying mechanism and an optical detection mechanism, wherein the LCD carrying mechanism comprises a carrying assembly line 7 and a feeding mechanism 8, the optical detection mechanism is composed of a plurality of optical detection units 6, and each optical detection unit 6 is provided with a detection station 2, a feeding station 3, a transmission mechanism 4 and a phase adjustable unit 5;
the conveying assembly line 7 is positioned above the feeding station 3, the conveying direction of the conveying assembly line 7 is perpendicular to the conveying direction of the conveying mechanism 4, so that a plurality of optical detection units 6 are formed and arranged side by side along the conveying assembly line 7, and the plurality of optical detection units 6 detect simultaneously, so that the detection efficiency is improved; the feeding mechanism 8 is a linear motor, the linear motor is arranged along the Y axis, the tail end of the linear motor is connected with the head end of the conveying assembly line 7, a screen placing bearing table is rotatably connected to the linear motor, and an LCD screen placing space is arranged on the bearing table, so that the linear motor drives the bearing table to move towards the conveying assembly line 7; defining the conveying direction of the conveying mechanism 4 as a Y-axis direction, the conveying direction of the conveying assembly line 7 as an X-axis direction, and the direction vertical to the XY plane as a Z-axis direction;
as shown in fig. 2 and fig. 3, the conveying mechanism 4 includes a first display screen placing plate 401, a first reciprocating linear driving mechanism 402, a second display screen placing plate 403, a lifting mechanism 404, and a second reciprocating linear driving mechanism 405;
the first reciprocating linear driving mechanism 402 is two linear motors, the second reciprocating linear driving mechanism 405 is two linear motors, the lifting mechanism 404 is also two linear motors, the first reciprocating linear driving mechanism 402 and the second reciprocating linear driving mechanism 405 are arranged in parallel relatively along the Y-axis direction, the first display screen placing plate 401 is positioned between the two first reciprocating linear driving mechanisms 402 so as to drive the first display screen placing plate 401 to reciprocate between the loading station 3 and the detection station 2, the lifting mechanism 404 is arranged on the second reciprocating linear driving mechanism 405 along the Z-axis direction, the second display screen placing plate 403 is positioned between the two linear motors of the lifting mechanism 404 so as to drive the second display screen placing plate 403 to ascend or descend, and the second reciprocating linear driving mechanism 405 drives the loading station 3 and the detection station 2 to reciprocate, one second reciprocating linear driving mechanism 405 is disposed at one side of the two first reciprocating linear driving mechanisms 402, and the other second reciprocating linear driving mechanism 405 is disposed at the other side of the two first reciprocating linear driving mechanisms 402, so as to prevent the first display screen mounting plate 401 and the second display screen mounting plate 403 from interfering with each other.
As shown in fig. 4, the first display placing panel 401 and the second display placing panel 403 each have an initial position, and the right conveying mechanism 4 in the drawing is in the initial position of the embodiment, that is: the initial position of the second display screen placing plate 403 is located in the feeding station 3, and the initial position of the first display screen placing plate 401 is located in the detection station 2; when the first display screen placing plate 401 moves towards the loading station 3, the second display screen placing plate 403 is driven by the lifting mechanism 404 to ascend and move towards the detection; when the first display screen placing plate 401 reaches the loading station and fills the vacancy left by the second display screen placing plate 403 after rising, the second display screen placing plate 403 reaches the detection station, and descends and fills the vacancy left by the first display screen placing plate 401 after leaving; the first display screen placing plate 401 and the second display screen placing plate 403 reciprocate between the detection station 2 and the feeding station 3, when the lifting mechanism 404 drives the second display screen placing plate 403 to ascend, the lower part of the first display screen placing plate 401 forms a movement space of the first display screen placing plate, the space in the vertical direction is efficiently utilized, and excessive horizontal space is not occupied;
preferably, the first display screen placing plate 401 and the second display screen placing plate 403 both include an adjustable clamp for clamping and fixing the display screen, the adjustable clamp includes two clamp plates arranged in parallel relatively, one of the two clamp plates is fixedly connected to the top surface of the placing plate, the other is slidably connected to the placing plate, and a screw-nut mechanism is further applied to the clamp plates, so as to compatibly position the LCD display screens with different sizes.
As shown in fig. 1 and fig. 4, the carrying assembly line 7 includes a long linear motor and two adsorption carrying manipulators 1, the long linear motor is fixedly arranged on the rack along the X axis, both the two adsorption carrying manipulators 1 are slidably connected to the long linear motor relative to the rack, the two adsorption carrying manipulators 1 reciprocate along the X axis under the driving of the long linear motor, one of the adsorption carrying manipulators 1 includes a head end position of the carrying assembly line 7 in a movement stroke for adsorbing an LCD screen to be detected and placing the LCD screen to be detected in the feeding station 3 of each optical detection unit 6, and the other adsorption carrying manipulator 1 includes a tail end position of the carrying assembly line 7 in a movement stroke for adsorbing and removing the detected LCD screen from the feeding station 3 of each optical detection unit 6.
As shown in fig. 5, the adsorption carrying manipulator 1 includes a carrying mechanism 101 and an adsorption mechanism, the carrying mechanism is a linear driving module extending along the Z axis, the driving module is mainly a screw mechanism driven by a motor, the adsorption mechanism includes a profile frame 102 and a screen body suction cup 103, the screen body suction cup 103 is fixedly disposed below the profile frame 102 to form an adsorption space of the LCD screen, a fixed portion of the linear driving module is connected to the carrying assembly line 7, and a moving portion is fixed on the profile frame 102 to drive each adsorption carrying manipulator to reciprocate along the X axis and the Z axis.
As shown in fig. 2, the phase-adjustable unit 5 includes four front-view cameras 501 and two side-view cameras 502, the front-view cameras 501 and the side-view cameras 502 are both slidably connected to the frame, the front-view cameras 501 are disposed toward the inspection station 401 along the Z-axis direction at an angle of view, and the side-view cameras 502 are disposed toward the inspection station 401 at an angle of view forming an included angle with the Z-axis;
two front-view cameras 501 are connected to one X-axis moving mechanism 503 in a sliding manner relative to the rack, and the other two front-view cameras 501 are connected to the other X-axis moving mechanism 503 in a sliding manner relative to the rack, so that the front-view cameras 501 are driven to move along the X axis; one end of each of the two X-axis moving mechanisms 503 is slidably connected to one Y-axis moving mechanism 504 with respect to the frame, and the other end is slidably connected to the other Y-axis moving mechanism 504 with respect to the frame, so that the front view camera 501 is driven to move along the Y-axis;
the two X-axis moving mechanisms 503 are both bidirectional ball screw mechanisms, each bidirectional ball screw mechanism is composed of a bidirectional screw and two nuts, each bidirectional screw is composed of a left-handed screw and a right-handed screw which are coaxially connected, one of the two nuts is matched with the left-handed screw, the other nut is matched with the right-handed screw, on each X-axis moving mechanism 503, one front-view camera 501 is fixedly arranged on the nut of the left-handed screw, and the other front-view camera 501 is fixedly arranged on the nut of the right-handed screw, so that the two front-view cameras are driven to move along the X axis; the two Y-axis moving mechanisms 504 are both a pair of linear motors which are arranged in the same straight line, the two linear motors on each Y-axis moving mechanism 504 move in opposite directions synchronously, each linear motor is connected with one end of the X-axis moving mechanism 503 in a sliding manner so as to drive the two X-axis moving mechanisms 503 to move along the Y axis, the X-axis moving mechanism 503 drives the front-view camera 501 to move along the X axis while moving along the Y axis, so as to drive the front-view camera 501 to move in an XY plane, and the structure can enable the front-view cameras 501 to be close to or far away from the central position of the LCD screen at the same time, so that the LOD screens with different sizes can be detected quickly and accurately;
preferably, the Y-axis moving mechanism 503 connected to the front-view camera 501 is further slidably connected to the Z-axis moving mechanism 505, and the Z-axis moving mechanism 505 is a linear motor arranged along the Z-axis, so as to drive the front-view camera to adjust the height on the Z-axis.
As shown in fig. 2 and fig. 7, the side view camera 502 is slidably connected to an X-axis moving mechanism 503 with respect to the frame, the X-axis moving mechanism 503 is slidably connected to a Y-axis moving mechanism 504 with respect to the frame, and the side view camera 502 can rotate with respect to itself along the Y-axis; the other side view camera 502 is slidably connected to another Y-axis moving mechanism 504 relative to the frame, the Y-axis moving mechanism 504 is slidably connected to another X-axis moving mechanism 504 relative to the frame, and the side view camera 502 can rotate along the X-axis relative to itself; thereby driving the movement or rotation of the two side view cameras 502 in the XY plane; the X-axis moving mechanism 503 and the Y-axis moving mechanism 504 are linear motors, so that the position of the side camera 502 is adjusted and increased by the structure, and the LCD screens with different sizes are compatible.
Other embodiments and structural changes of the present invention are described below as follows:
1. in the above embodiment, one second reciprocating linear driving mechanism 405 is disposed at one side of the two first reciprocating linear driving mechanisms 402, the other second reciprocating linear driving mechanism 405 is disposed at the other side of the two first reciprocating linear driving mechanisms 402, so that the first display placing plate 401 and the second display placing plate 403 do not interfere with each other during the reciprocating movement, a first reciprocating linear driving mechanism 402 may be provided so as to be disposed between two second reciprocating linear driving mechanisms 405, therefore, the arrangement structure that the first display screen placing plate 401 and the second display screen placing plate 403 do not interfere in the reciprocating process, and the arrangement structure that the first display screen placing plate 401 and the second display screen placing plate 403 can be driven and do not interfere in the reciprocating process should be included in the present invention, which can be understood and accepted by those skilled in the art.
2. In the above embodiment, the two X-axis moving mechanisms 503 are two-way ball screw mechanisms, so as to move the four front-view cameras 501 synchronously, and may also be two gears rotating synchronously to drive two racks, where the racks drive the front-view cameras 501 to move synchronously, and any structure that drives the front-view cameras to move synchronously should be included in the present invention, which can be understood and accepted by those skilled in the art.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (9)

1. The utility model provides an automatic optical detection equipment of LCD module, includes frame, LCD transport mechanism and optical detection mechanism, optical detection mechanism comprises a plurality of optical detection unit (6), and optical detection unit (6) are equipped with detection station (2) and material loading station (3), its characterized in that: the optical detection unit (6) is also provided with a transmission mechanism (4);
the conveying mechanism (4) comprises a first display screen placing plate (401), a first reciprocating linear driving mechanism (402), a second display screen placing plate (403), a lifting mechanism (404) and a second reciprocating linear driving mechanism (405); the first reciprocating linear driving mechanism (402) acts on the first display screen placing plate (401) and is used for driving the first display screen placing plate (401) to reciprocate between the feeding station (3) and the detection station (2), the lifting mechanism (404) is arranged on the second reciprocating linear driving mechanism (405) and driven by the second reciprocating linear driving mechanism (405) to reciprocate between the feeding station (3) and the detection station (2), and the lifting mechanism (404) acts on the second display screen placing plate (403) and is used for driving the second display screen placing plate (403) to ascend or descend;
the first display screen placing plate (401) and the second display screen placing plate (403) are both provided with an initial position, wherein the initial position of one is positioned in the feeding station (3), and the initial position of the other is positioned in the detection station (2); when the first display screen placing plate (401) moves towards the detection station (2) or the loading station (3), the second display screen placing plate (403) is driven by the lifting mechanism (404) to ascend and move towards the station where the first display screen placing plate (401) is located; when the first display screen placing plate (401) reaches and fills the vacancy left by the rising of the second display screen placing plate (403), the second display screen placing plate (403) reaches the original station of the first display screen placing plate (401), and descends and fills the vacancy left by the first display screen placing plate (401) after leaving; thereby, the reciprocating motion of the first display screen placing plate (401) and the second display screen placing plate (403) between the detection station (2) and the feeding station (3) is formed.
2. The apparatus of claim 1, wherein: the first display screen placing plate (401) and the second display screen placing plate (403) both comprise adjustable clamps for clamping and fixing the display screens, each adjustable clamp comprises two clamping plates which are arranged in parallel relatively, one of the clamping plates is fixedly connected to the top surface of the placing plate, the other clamping plate is connected to the placing plate in a sliding mode, and a screw and nut mechanism is further arranged on each clamping plate.
3. The apparatus of claim 1, wherein: defining the conveying direction of the conveying mechanism (4) as a Y-axis direction, wherein the first reciprocating linear driving mechanisms (402) are two linear motors or ball screw mechanisms, the second reciprocating linear driving mechanisms (405) are two linear motors or ball screw mechanisms, the two first reciprocating linear driving mechanisms (402) are arranged in parallel relatively along the Y-axis direction, the first display screen placing plate (401) is positioned between the two first reciprocating linear driving mechanisms (402), one second reciprocating linear driving mechanism (405) is arranged at one side of the two first reciprocating linear driving mechanisms (402), the other second reciprocating linear driving mechanism (405) is arranged at the other side of the two first reciprocating linear driving mechanisms (402), the second display screen placing plate (403) is positioned between the two second reciprocating linear driving mechanisms (405), so that when the lifting mechanism (404) drives the second display screen placing plate (403) to ascend, the lower part of the first display screen placing plate forms a movement space of the first display screen placing plate (401).
4. The apparatus of claim 1, wherein: LCD transport mechanism is including transport assembly line (7) and feeding mechanism (8), transport assembly line (7) are located material loading station (3) top, the direction of delivery of transport assembly line (7) with the direction of delivery of transport mechanism (4) is perpendicular to this constitutes a plurality of optical detection unit (6) and arranges side by side along transport assembly line (7), feeding mechanism (8) are a linear motor, and this linear motor end meets with transport assembly line (7) head end, and the last rotation of linear motor is connected with one and puts the screen plummer, is equipped with the space of placing of LCD screen on the plummer to this bears the LCD screen at linear motor drive plummer and moves towards transport assembly line (7).
5. The apparatus of claim 4, wherein: defining the conveying direction of the conveying mechanism (4) as a Y-axis direction, the conveying direction of the conveying assembly line (7) as an X-axis direction, and the direction vertical to the XY plane as a Z-axis direction; the conveying assembly line (7) is provided with a long linear motor and at least two adsorption conveying mechanical arms (1), the long linear motor is fixedly arranged on the rack, each adsorption conveying mechanical arm (1) is connected to the long linear motor in a sliding mode relative to the rack, each adsorption conveying mechanical arm (1) reciprocates along an X axis under the driving of the long linear motor, the motion stroke of at least one adsorption conveying mechanical arm (1) comprises the head end position of the conveying assembly line (7), and the motion stroke of at least one adsorption conveying mechanical arm (1) comprises the tail end position of the conveying assembly line (7).
6. The apparatus of claim 5, wherein: adsorb transport manipulator (1) including transport mechanism (101) and adsorption apparatus structure, transport mechanism is for extending the linear drive module who arranges along the Z axle, adsorption apparatus structure includes section bar frame (102) and screen body sucking disc (103), and screen body sucking disc (103) set firmly in section bar frame (102) below to this absorption space that constitutes the LCD screen, linear drive module's fixed part connect in on transport assembly line (7), the motion part is fixed in on section bar frame (102), with this drive each adsorb transport manipulator along X axle and Z axle reciprocating motion.
7. The apparatus of claim 1, wherein: defining the conveying direction of the conveying mechanism (4) as a Y-axis direction, the conveying direction of the conveying assembly line (7) as an X-axis direction, and the direction vertical to the XY plane as a Z-axis direction; but detection station (2) top is equipped with phase modulation unit (5), but phase modulation unit (5) include a plurality of front view camera (501) and a plurality of camera (502) that look sideways at, front view camera (501) and look sideways at camera (502) homogeneous phase for frame sliding connection in the frame, wherein, front view camera (501) set up with visual angle along Z axle direction orientation detection station (2), look sideways at camera (502) and constitute contained angle orientation detection station (2) setting with visual angle and Z axle.
8. The apparatus of claim 7, wherein: the phase adjustable unit (5) comprises four front-view cameras (501), two X-axis moving mechanisms (503) arranged along the X axis in an extending mode and two Y-axis moving mechanisms (504) arranged along the Y axis in an extending mode, wherein the two front-view cameras (501) are connected to one X-axis moving mechanism (503) in a sliding mode relative to the rack, and the other two front-view cameras (501) are connected to the other X-axis moving mechanism (503) in a sliding mode relative to the rack so as to drive the front-view cameras (501) to move along the X axis; one end of each of the two X-axis moving mechanisms (503) is connected to one Y-axis moving mechanism (504) in a sliding manner relative to the rack, and the other end of each of the two X-axis moving mechanisms is connected to the other Y-axis moving mechanism (504) in a sliding manner relative to the rack, so that the front-view camera (501) is driven to move along the Y axis;
the two X-axis moving mechanisms (503), the two Y-axis moving mechanisms (504), or both the two X-axis moving mechanisms (503) and the two Y-axis moving mechanisms (504) are bidirectional ball screw mechanisms, each bidirectional ball screw mechanism consists of a bidirectional screw and two nuts, each bidirectional screw consists of a left-handed screw and a right-handed screw which are coaxially connected, one of the two nuts is matched with the left-handed screw, and the other nut is matched with the right-handed screw;
when the X-axis moving mechanism (503) is a bidirectional ball screw mechanism, one front-view camera (501) is fixedly arranged on a nut of the left-handed screw, and the other front-view camera (501) is fixedly arranged on a nut of the right-handed screw; when the Y-axis moving mechanism (504) is a bidirectional ball screw mechanism, one end of one X-axis moving mechanism (503) is fixedly arranged on the nut of the left-handed screw, and one end of the other X-axis moving mechanism (503) is fixedly arranged on the nut of the right-handed screw.
9. The apparatus of claim 7, wherein: the phase adjustable unit (5) comprises two side-view cameras (502), two X-axis moving mechanisms (503) arranged along the X axis in an extending mode and two Y-axis moving mechanisms (504) arranged along the Y axis in an extending mode, one side-view camera (502) is connected to one X-axis moving mechanism (503) in a sliding mode relative to the rack, the X-axis moving mechanism (503) is connected to one Y-axis moving mechanism (504) in a sliding mode relative to the rack, and the side-view camera (502) can rotate relative to the side-view camera per se along the Y axis; the other side-looking camera (502) is connected to another Y-axis moving mechanism (504) in a sliding way relative to the machine frame, the Y-axis moving mechanism (504) is connected to another X-axis moving mechanism (503) in a sliding way relative to the machine frame, and the side-looking camera (502) can rotate along the X axis relative to the side-looking camera; thereby driving the movement or rotation of the two side view cameras (502) in the XY plane.
CN202020831033.1U 2020-05-18 2020-05-18 Automatic optical detection equipment for LCD module Active CN212586263U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113702388A (en) * 2021-08-30 2021-11-26 京东方科技集团股份有限公司 Display panel detection device, detection method, storage medium and processor
CN114935839A (en) * 2022-05-17 2022-08-23 厦门特仪科技有限公司 LCD display screen repair system based on Demura is restoreed

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113702388A (en) * 2021-08-30 2021-11-26 京东方科技集团股份有限公司 Display panel detection device, detection method, storage medium and processor
CN114935839A (en) * 2022-05-17 2022-08-23 厦门特仪科技有限公司 LCD display screen repair system based on Demura is restoreed
CN114935839B (en) * 2022-05-17 2024-03-19 厦门特仪科技有限公司 LCD display screen repair system based on Demura repair

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