CN213456701U

CN213456701U - Automatic optical detection equipment

Info

Publication number: CN213456701U
Application number: CN202022163666.2U
Authority: CN
Inventors: 吴少敏; 吴坚; 朱麟; 袁存仓
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-06-15
Anticipated expiration: 2030-09-27

Abstract

The application provides an automatic optical detection equipment relates to check out test set technical field. The automatic optical detection device includes: the device comprises a base, a light shield, a transmission mechanism, a light source, a camera, a host and a display; the light shield is arranged on the base and matched with the base to form an internal light shielding environment; the conveying mechanism is used for moving the detected products into or out of the internal light shading environment; the light source and the camera are both arranged in the light shield, and the light source is used for illuminating the detected product; the camera is electrically connected with the host and is used for acquiring the image of the detected product and sending the image to the host; the host is also electrically connected with the display arranged on the outer side of the light shield and used for detecting the detected product according to the image and outputting a detection picture to the display for displaying. The automatic optical detection equipment can realize automatic detection of electronic products.

Description

Automatic optical detection equipment

Technical Field

The application relates to the technical field of detection equipment, in particular to automatic optical detection equipment.

Background

With the development of the electronic product manufacturing industry, the requirements for the quality of electronic products are higher and higher, and in order to improve the quality of the electronic products and avoid the outflow of unqualified products, a large amount of detection needs to be performed in the manufacturing process of the electronic products, for example, in the product assembly link of mobile terminals such as mobile phones and tablet computers, a plurality of items such as glue paths, shielding covers and waterproof labels need to be subjected to defect detection.

At present, mainly adopt artifical manual visual detection's mode to detect, because most of detection items need accomplish under the shining of highlight, the highlight can produce harmful effects to the human eye, makes testing personnel take place fatigue, maloperation scheduling problem easily, consequently, this kind of manual detection's mode detection precision and degree of accuracy are all relatively poor, and efficiency is also lower.

Therefore, it is desirable to provide an automatic inspection apparatus capable of performing quality inspection on electronic products.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application aims to provide automatic optical detection equipment to solve the problems that in the prior art, the detection precision and accuracy are poor and the efficiency is low when an electronic product is detected in a manual detection mode.

In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:

the embodiment of the present application provides an automatic optical detection device, including: the device comprises a base, a light shield, a transmission mechanism, a light source, a camera, a host and a display; wherein the content of the first and second substances,

the light shield is arranged on the base and matched with the base to form an internal shading environment;

the conveying mechanism is arranged on the base and transversely penetrates through an opening arranged at the lower part of the light shield and is used for moving the detected product into or out of the internal light shielding environment;

the light source and the camera are both arranged in the light shield, and the light source is used for illuminating the detected product;

the camera is electrically connected with the host and is used for acquiring the image of the detected product and sending the image to the host;

the host is also electrically connected with the display arranged on the outer side of the light shield and used for detecting the detected product according to the image and outputting a detection picture to the display for displaying.

In some variations of the present application, the light source comprises a flat panel light source, the flat panel light source being horizontally disposed with the light emitting direction facing downward;

the middle of the flat light source is provided with a through hole matched with the camera, and the camera collects images of the detected product through the through hole.

In some variations of the present application, the automated optical inspection apparatus further comprises: a Z-axis driving mechanism arranged along the vertical direction;

the flat-panel light source and the camera are both connected with the Z-axis driving mechanism, and the Z-axis driving mechanism is used for driving the flat-panel light source and the camera to move along the vertical direction.

In some modified embodiments of the present application, the light shield is formed of a black light-blocking material, or an inner wall of the light shield is coated with a black light-blocking material.

In some modified embodiments of the present application, the upper surface of the transport mechanism is formed of a black light-blocking material, or the upper surface of the transport mechanism is coated with a black light-blocking material.

In some modified embodiments of the present application, the transfer mechanism includes: the Y-axis guide rail is arranged on the base along the horizontal direction, and the product carrier is arranged on the Y-axis guide rail;

the product carrier is used for bearing a detected product;

the Y-axis guide rail is used for driving the product carrier to move into or remove the internal shading environment.

In some modified embodiments of the present application, the transfer mechanism further includes: the Y-axis guide rail cover plate is arranged between the Y-axis guide rail and the product carrier;

the Y-axis guide rail cover plate is arranged on the upper part of the Y-axis guide rail and covers the Y-axis guide rail;

the product carrier extends into the Y-axis guide rail from two sides of the Y-axis guide rail cover plate and is connected with the Y-axis guide rail;

the Y-axis guide rail cover plate is made of black light-blocking materials, or the surface of the Y-axis guide rail cover plate is coated with the black light-blocking materials.

In some variations of the present application, the product carrier includes a universal base plate and a replaceable fixture;

the universal base plate is connected with the Y-axis guide rail;

the replaceable clamp is connected with the universal base plate and used for clamping the detected product.

In some variations of the present application, a product detection sensor is disposed on the product carrier;

the product detection sensor is electrically connected with the host and used for sending a sensing signal indicating that the detected product is placed to the host after the detected product is placed on the product carrier.

In some variations of the present application, the transfer station of the transfer mechanism includes: the device comprises a first station, a second station and a third station, wherein the first station is used for placing detected products and taking out the detected products which are unqualified in detection;

the first station, the second station and the third station are arranged in sequence along the conveying mechanism.

In some modified embodiments of the present application, a movable support frame is disposed at the bottom of the base, and the movable support frame includes a support frame body and a universal wheel disposed at the bottom of the support frame body;

the automatic optical detection equipment is arranged on the ground through the movable support frame and can move along the ground.

In some variations of the present application, the light shield side and/or top is provided with an access door formed of a light blocking material.

In some variations of the present application, the top and/or side of the light shield is provided with an observation window, and the observation window is formed by a dark brown acrylic plate.

In some variations of the present application, the automated optical inspection apparatus further comprises: a warning device;

the warning device is electrically connected with the host and is used for sending warning information representing a real-time working state under the control of the host.

Compare in prior art, the automatic optical detection equipment that this application provided includes: the device comprises a base, a light shield, a transmission mechanism, a light source, a camera, a host and a display; the light shield is arranged on the base and matched with the base to form an internal light shielding environment; the conveying mechanism is arranged on the base and transversely penetrates through an opening arranged at the lower part of the light shield and is used for moving the detected product into or out of the internal light shielding environment; the light source and the camera are both arranged in the light shield, and the light source is used for illuminating the detected product; the camera is electrically connected with the host and is used for acquiring the image of the detected product and sending the image to the host; the host is also electrically connected with the display arranged on the outer side of the light shield and used for detecting the detected product according to the image and outputting a detection picture to the display for displaying. The automatic optical detection equipment has the advantages that the light shield is arranged, so that a detected product can be detected in an internal light-shielding environment, and the bad influence of strong light on the eyes of an operator is avoided; by arranging the conveying mechanism, the detected product can be conveniently moved into or out of the internal shading environment; in addition, by arranging the camera and the host, the automatic detection of the detected product can be realized by acquiring the image of the detected product and utilizing the image recognition technology, and the method has the advantages of high detection efficiency and high precision and accuracy; in addition, through setting up the display, can show the detection picture in real time, the detection personnel of being convenient for directly perceivedly, conveniently know the content of detecting. In addition, above-mentioned automatic optical detection equipment simple structure, and major structure adopts vertical overall arrangement, consequently can adopt comparatively small and exquisite size to realize, still has the installation and removes of being convenient for, occupies advantage that the place is little.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 schematically illustrates a first structural diagram of an automatic optical inspection apparatus provided in some embodiments of the present application;

FIG. 2 schematically illustrates a second structural diagram of an automatic optical inspection apparatus provided in some embodiments of the present application;

FIG. 3 schematically illustrates a schematic structural view of a light shield provided in some embodiments of the present application;

FIG. 4 schematically illustrates a structural view of a transport mechanism provided in some embodiments of the present application;

fig. 5 schematically illustrates a transfer station setup diagram of a transfer mechanism provided in some embodiments of the present application.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

The embodiment of the application provides an automatic optical detection device, which is exemplarily described below with reference to the embodiment.

Referring to fig. 1 and fig. 2 for understanding, wherein fig. 1 schematically illustrates a first structural schematic diagram of an automatic optical inspection apparatus provided in some embodiments of the present application, fig. 1 illustrates a partial internal structure of the automatic optical inspection apparatus, fig. 2 schematically illustrates a second structural schematic diagram of an automatic optical inspection apparatus provided in some embodiments of the present application, and fig. 2 illustrates an external appearance structure of the automatic optical inspection apparatus, as shown in fig. 1 and fig. 2, an automatic optical inspection apparatus provided in an embodiment of the present application may include: a base 101, a light shield 102, a transport mechanism 103, a light source 104, a camera 105, a host 106, and a display 107; wherein the content of the first and second substances,

the light shield 102 is disposed on the base 101 and cooperates with the base 101 to form an internal light-shielding environment;

the conveying mechanism 103 is disposed on the base 101 and traverses an opening disposed at a lower portion of the light shielding cover 102, and is used for moving the detected product 201 into or out of the internal light shielding environment;

the light source 104 and the camera 105 are both disposed in the light shield 102, and the light source 104 is used for illuminating the detected product 201;

the camera 105 is electrically connected to the host 106, and is configured to capture an image of the detected product 201 and send the image to the host 106;

the host 106 is electrically connected to the display 107 disposed outside the light shield 102, and is configured to detect the product 201 to be detected based on the image and output a detection screen to the display 107 for display.

Compared with the prior art, the automatic optical detection equipment provided by the embodiment of the application has the advantages that the detected product 201 can be detected in an internal light-shielding environment by arranging the light shield 102, so that the bad influence of strong light on the eyes of operators is avoided; by arranging the conveying mechanism 103, the detected product 201 can be conveniently moved into or out of the internal shading environment; in addition, by arranging the camera 105 and the host 106, the automatic detection of the detected product 201 can be realized by acquiring the image of the detected product 201 and utilizing the image recognition technology, and the method has the advantages of high detection efficiency and high precision and accuracy; in addition, by arranging the display 107, a detection picture can be displayed in real time, so that detection personnel can visually and conveniently know detection contents.

In addition, above-mentioned automatic optical detection equipment simple structure, and major structure adopts vertical overall arrangement, consequently can adopt comparatively small and exquisite size to realize, still has the installation and removes of being convenient for, occupies advantage that the place is little. For example, in some embodiments, the automatic optical inspection apparatus is designed to perform defect inspection on a mobile phone or a tablet computer, and the size of the automatic optical inspection apparatus can be 700mm in width and 600mm in length.

It should be noted that, in fig. 1, the host 106 and the display 107 are designed in an integrated manner, in practical applications, the host 106 and the display 107 may also be designed in a split manner, and the embodiments of the present application are not limited to this, and all of them can achieve the purpose of the embodiments of the present application.

The host 106 may be implemented by a Programmable Logic Controller (PLC), a single chip, a Microcontroller (MCU), a computer host, or the like, and the host 106 may also be implemented by a separate component, which is not limited in the embodiment of the present application.

The automatic Optical detection equipment provided by the embodiment of the application can be realized based on an automatic Optical detection (AOI) technology, wherein the AOI technology refers to that the automatic Optical detection equipment automatically scans a detected product through a camera, acquires an image, compares the data of the acquired image with qualified parameters in a database through image identification, or compares the acquired image with the qualified image, detects the defect on the detected product, and displays the defect through a display.

Based on the above description, the host 106 may be provided with an image recognition program, so as to perform image recognition on the acquired image by using the image recognition program, and further detect whether the detected product 201 is qualified, where the image recognition program may be implemented by using an image recognition program provided in the prior art, and the program itself does not belong to the invention of the embodiment of the present application, and the embodiment of the present application is not limited herein.

In view of the problem that the detection surface of the detected product 201 may have a reflection, an uneven surface, etc., if a single-point light source is adopted, the image acquired by the camera 105 may have a reflection, a light spot, a shadow, etc., and the subsequent image recognition result is affected, so in some modified embodiments of the present application, referring to fig. 1, the light source 104 may include a flat light source, and the flat light source is horizontally arranged and the light emitting direction is downward;

a through hole is formed in the middle of the flat light source and is matched with the camera 105, and the camera 105 collects images of the detected product 201 through the through hole.

The flat light source is designed as a flat plate, a plurality of light sources arranged in an array mode can be arranged on the flat light source, and the area of the flat light source is larger than that of a detected product, so that light can be uniformly and vertically irradiated on each position of the detected product, the problems of light spots, shadows and the like are avoided, and the accuracy and precision of subsequent image detection are improved.

In addition, a light-diffusing plate may be disposed on the light-emitting surface of the flat-panel light source, so that the light emitted from the flat-panel light source is softer and more uniform, and the quality of the image collected by the camera 105 is further improved.

Referring to fig. 1 for the installation manner of the flat panel light source and the camera 105, in some modified embodiments of the present application, the automatic optical inspection apparatus further includes: a Z-axis drive mechanism 108 disposed in the vertical direction;

the flat panel light source and the camera 105 are both connected to the Z-axis driving mechanism 108, and the Z-axis driving mechanism 108 is used for driving the flat panel light source and the camera 105 to move in the vertical direction.

Above-mentioned Z axle actuating mechanism 108 plays the effect of installation dull and stereotyped light source and camera 105 on the one hand, and on the other hand can play the effect of adjusting the height of shooing, for example, this automatic optical detection equipment can be used for detecting the product 201 that is detected of different sizes, specification, in order to obtain better image acquisition effect, need shoot the focus to the product adjustment of difference, this moment, can reciprocate through Z axle actuating mechanism 108 regulation camera 105 to in order to shoot and obtain clear image.

In some modified embodiments, the Z-axis driving mechanism 108 may adopt a dual-driving structure, and the flat-panel light source and the camera 105 may be connected to different driving structures, so that the dual-driving structure may be used to drive the flat-panel light source and the camera 105 to move independently, thereby facilitating to adjust the heights of the flat-panel light source and the camera 105 respectively for different test scenes in practical applications.

In addition, it is easy to understand that the Z-axis driving mechanism 108 should further include a Z-axis driving motor connected to the host 106 for driving the flat panel light source and the camera 105 to move in an electrically controlled manner under the control of the host 106.

In order to further improve the image capturing effect, please refer to fig. 3, which schematically illustrates a structural schematic view of a light shielding cover provided in some embodiments of the present application, as shown in fig. 3, in some modified embodiments of the present application, the light shielding cover 102 is formed by a black light-blocking material, or an inner wall 1021 of the light shielding cover 102 is coated with a black light-blocking material. For example, the light shield 102 may be formed of a sheet metal material, and then a layer of black material is coated on the inner wall 1021. Through the embodiment, the reflection of the inner wall 1021 of the light shield 102 to the light in the internal shading environment can be reduced, and the image acquisition quality of the detected product 201 can be improved.

In addition, in order to improve the image capturing effect, the surfaces of the components exposed to the internal light-shielding environment should be blackened, for example, in some modified embodiments of the present application, the upper surface of the conveying mechanism 103 is formed by using a black light-shielding material, or the upper surface of the conveying mechanism 103 is coated with a black light-shielding material. Because the detected product 201 is conveyed into the internal light-shielding environment through the conveying mechanism 103, the light-reflecting effect of the conveying mechanism 103 can be reduced, and the interference of the conveying mechanism 103 on image acquisition and subsequent image identification is reduced.

It should be noted that the above-mentioned conveying mechanism 103 may be implemented based on any conveying structure such as a conveyor belt, a guide rail, etc. provided in the prior art, for facilitating understanding, in some exemplary descriptions of the present application, please refer to fig. 4, which schematically illustrates a structural schematic diagram of a conveying mechanism provided in some embodiments of the present application, and as shown in fig. 4, the above-mentioned conveying mechanism 103 may include: a Y-axis rail 1031 provided on the base 101 in a horizontal direction, and a product carrier 1032 provided on the Y-axis rail 1031;

the product carrier 1032 is used for carrying the product 201 to be tested;

the Y-axis rails 1031 are used to drive the product carriers 1032 into and out of the interior shaded environment.

It will be readily appreciated that the transport mechanism 103 may also be provided with a Y-axis drive motor that is electrically connected to the host computer 106 and mechanically connected to the Y-axis rail 1031 or the product carrier 1032. For example, the Y-axis rail 1031 may comprise a lead screw, and the Y-axis drive motor may be mechanically coupled to the lead screw and drive the lead screw to rotate to drive the product carrier 1032 to move; as another example, the Y-axis rails 1031 may comprise slide rails and the Y-axis drive motors may be mechanically coupled to the product carriers 1032 to directly drive the product carriers 1032 to move along the slide rails. The above exemplary structures can achieve the objectives of the embodiments of the present application, and those skilled in the art can also flexibly modify the implementation based on the above technical concepts to achieve the objectives of the embodiments of the present application, which should be within the protection scope of the present application.

In addition to the embodiment shown in fig. 4, as shown in fig. 4, in some modified embodiments, the transfer mechanism 103 may further include: a Y-axis rail cover 1033 disposed between the Y-axis rail 1031 and the product carrier 1032;

the Y-axis rail cover plate 1033 is provided on the upper portion of the Y-axis rail 1031 and covers the Y-axis rail 1031;

the product carrier 1032 extends into the Y-axis rail 1031 from both sides of the Y-axis rail cover 1033 and is connected to the Y-axis rail 1031;

the Y-axis rail cover 1033 is made of a black light-blocking material, or the surface of the Y-axis rail cover 1033 is coated with the black light-blocking material.

In consideration of the fact that the Y-axis guide rail 1031 is generally made of steel materials, and coating paint on the surface of the Y-axis guide rail 1031 can adversely affect the performance of the Y-axis guide rail 1031, in this embodiment, the Y-axis guide rail cover plate 1033 is arranged on the Y-axis guide rail 1031 without performing blackening treatment on the Y-axis guide rail 1031, and the Y-axis guide rail cover plate 1033 performs blackening treatment, so that the shielding effect of the Y-axis guide rail cover plate 1033 is utilized to prevent the Y-axis guide rail 1031 from being collected by the camera 105 to affect the image effect, and in addition, the Y-axis guide rail cover plate 1033 can also play a role in protection, and prevent foreign matters from falling.

Additionally, in addition to the embodiment shown in fig. 4, as shown in fig. 4, in some variations, the product carrier 1032 may include a universal substrate 10321 and a replaceable fixture 10322;

the general-purpose board 10321 is connected to the Y-axis guide 1031;

the replaceable fixture 10322 is connected to the universal board 10321, and the replaceable fixture 10322 is used for holding the product 201 to be tested.

The universal substrate 10321 may be made of an aluminum alloy plate that is subjected to blackening treatment, and functions to fix the replaceable clamp 10322 and to connect the replaceable clamp 10322 to the Y-axis guide rail 1031.

The above-mentioned replaceable clamp 10322 is also blackened, and may be formed by a black light-blocking material, and the surface of the replaceable clamp 10322 is coated with the black light-blocking material, wherein, in some specific embodiments, the black light-blocking material may be implemented by using a black Polyoxymethylene Plastic (POM), and the POM has good physical, mechanical and chemical properties, especially has an excellent friction resistance, and has a long service life as the replaceable clamp 10322.

The replaceable fixture 10322 is detachably mounted on the universal substrate 10321, the size, specification, and shape of the replaceable fixture 10322 correspond to the size, specification, and shape of the product 201 to be tested, different replaceable fixtures 10322 can be used to fix different products 201 to be tested, in practical applications, the replaceable fixture 10322 with the size, specification, and shape corresponding to the product 201 to be tested can be selected for the product 201 to be tested, and the selected replaceable fixture 10322 is mounted on the universal substrate 10321 for use.

Through this embodiment, can improve this automated optical inspection equipment's compatibility, for example, to the characteristics that the electronic product renewal is very fast, after the electronic product renewal, only need design and select for use corresponding displaceable anchor clamps 10322, can make things convenient for, quick come into operation for this automated optical inspection equipment has the compatibility height, be applicable to multiple detected product 201 and switch efficient advantage between different detected product 201.

In addition, the automatic optical detection equipment that this application provided, transport mechanism 103's transmission action can be come manual trigger by detection personnel, for example, sets up a button at the feed inlet, and after detection personnel material loading (material loading put into promptly waiting to detect by detected product 201) and accomplish, click this button, can trigger transport mechanism 103 and will be detected in product 201 immigration inside shading light environment and detect.

For the above-mentioned conveying mechanism 103, a plurality of conveying stations may be correspondingly provided, for example, please refer to fig. 5 for understanding, fig. 5 schematically illustrates a schematic diagram of a conveying station arrangement of a conveying mechanism provided in some embodiments of the present application, as shown in fig. 5, in some embodiments, the conveying station of the above-mentioned conveying mechanism 103 may include: a first station 10341 for loading the inspected product 201 and removing the inspected product 201 that is not inspected, a second station 10342 for inspecting the inspected product 201, and a third station 10343 for removing the inspected product 201 that is inspected;

the first, second, and

third stations

10341, 10342, and 10343 are disposed in this order along the conveying mechanism 103.

Through the arrangement, a detection person can put the detected product 201 from the first station 10341, then the conveying mechanism 103 moves the detected product 201 from the first station 10341 to the second station 10342, if the detection is passed, the conveying mechanism 103 moves the detected product 201 which is detected to be qualified from the second station 10342 to the third station 10343 so as to be convenient for a subsequent worker to take away for subsequent operation, and if the detection is not passed, the conveying mechanism 103 moves the detected product 201 which is detected to be unqualified from the second station 10342 back to the first station 10341 so as to be convenient for the detection person to process the detected product.

This embodiment, through setting up first station 10341 and third station 10343, can convey the product that detects qualified product and the unqualified product that detects to different stations respectively, and the staff of being convenient for distinguishes and handles, avoids mixing and puts and leads to qualified product and unqualified product to be confused.

It should be noted that, although the product 201 to be detected and the product carrier 1032 are shown in all of the three stations in fig. 5, this is only for illustrating the present embodiment, and in practical applications, the product 201 to be detected and the product carrier 1032 may only appear in one of the three stations at the same time.

In addition to the above-described embodiments, in some modified embodiments, a product detection sensor is provided on the product carrier 1032;

the product detection sensor is electrically connected to the host computer 106, and configured to send a sensing signal indicating that the detected product 201 is placed to the host computer 106 after detecting that the detected product 201 is placed on the product carrier 1032.

The product detection sensor can be realized by an infrared sensor and can also be realized by a contact sensor (such as a pressure sensor, a pressure sensitive switch and the like), and the embodiment of the application is not limited.

By providing the product detection sensor, more highly automated detection can be achieved, for example, when a detection person places the detected product 201 on the product carrier 1032, the product detection sensor can trigger sending a sensing signal indicating that the detected product 201 is placed to the host 106, and the host 106 receives the sensing signal, the host 106 can control the conveying mechanism 103 to move the detected product 201 from the first station 10341 to the second station 10342, control the light source 104 to turn on to illuminate the detected product 201, then control the camera 105 to shoot an image of the detected product 201, and detect the image by using an image recognition technology. As described above, the inspector can trigger the automatic optical inspection apparatus to automatically complete the inspection of the inspected product 201 only by placing the inspected product 201 on the product carrier 1032 without other operations, which has a higher degree of automation, and is helpful to reduce manual operations and improve the inspection efficiency.

In addition to any of the above embodiments, as shown in fig. 2, in some modified embodiments, a movable support frame 112 is provided at the bottom of the base 101, and the movable support frame 112 includes a support frame body 1121 and a universal wheel 1122 provided at the bottom of the support frame body 1121;

the automatic optical inspection apparatus is installed by the movable support frame 112 and is movable along the floor.

The height of the movable support frame 112 should be larger than 700mm, so that the detection personnel can conveniently realize the feeding and discharging operations by adopting a standing posture or a sitting posture, and when the detection equipment is specifically implemented, the height of the movable support frame 112 can be flexibly set by technical personnel in the field according to actual requirements, so that the automatic optical detection equipment is ensured to accord with the ergonomic design, and the operation convenience and the operation efficiency of the detection personnel are improved.

Through setting up above-mentioned universal wheel 1122, can conveniently remove automated optical inspection equipment to the place that needs, help reducing the equipment and remove the degree of difficulty, have higher convenience.

In another modified embodiment, as shown in fig. 2, an access door 109 is provided on a side surface and/or a top surface of the light shield 102, and the access door 109 is formed of a light-blocking material.

The access door 109 is used for facilitating inspection personnel to overhaul and maintain the internal parts of the light shield 102 without detaching the light shield 102, the number of the parts can be one or multiple, the technical personnel in the field can be flexibly set according to actual requirements, the arrangement positions of the parts can also be flexibly set according to the actual requirements, and the embodiment of the application is not limited.

The access door 109 can be kept closed in the working state, and when the access is needed, the access door 109 is opened, so that the internal parts can be inspected.

In consideration of the fact that the strong light inside the light shield 102 is leaked out through the access door 109, the strong light interferes with the visual sense of the inspector and affects the operation of the inspector, and therefore, the access door 109 can be formed by a light-blocking material, for example, a metal plate material can be used, so that the light leakage is avoided from affecting the operation of the inspector, and the use experience is improved.

In still other modified embodiments, as shown in fig. 2, the viewing windows 110 are formed in the top and/or side surfaces of the light-shielding cover 102, and the viewing windows 110 are formed of dark brown acrylic plates.

One function of the observation window 110 is to facilitate the inspection personnel to check the working condition inside the light shield 102 at any time, and the other function is to play a role of the access door 109 to facilitate the maintenance of the maintenance personnel. Wherein, in order to make the inspection personnel can look over the inside operating mode of lens hood 102, observation window 110 should use transparent material to realize, for example glass board or transparent plastic board, in addition, consider that the inside light of lens hood 102 leaks and can influence the inspection personnel operation, and outside light leaks into inside shading environment, then can influence image acquisition quality, consequently, above-mentioned observation window 110 can adopt dark brown inferior gram force board to form.

Through the embodiment, the working condition inside the light shield 102 can be conveniently checked by a detector at any time, the maintenance of a maintainer can be facilitated, and meanwhile, the influence of light leakage on the detector and the image acquisition quality can be reduced.

In addition, as shown in fig. 2, in order to facilitate the inspector to know the working condition in time and remind the inspector to operate, in some modified embodiments of the present application, the automatic optical inspection apparatus further includes: a warning device 111; the warning device 111 is electrically connected to the host 106, and is configured to send warning information indicating a real-time operating status under the control of the host 106.

Wherein, above-mentioned warning device 111 can adopt realization such as warning light, bee calling organ to warn to measurement personnel through optical signal, acoustic signal, this application embodiment does not restrict its embodiment, and wherein, the warning information that different operating condition corresponds should be different, so that measurement personnel distinguish.

Based on the automatic optical detection device provided by any of the above embodiments, the workflow may be as follows:

1. a detected product 201 (e.g., a cell phone product) is placed at the first station 10341, a sensor disposed on the product carrier 1032 senses the detected product 201 and sends a sensing signal to the host computer 106, and after a predetermined time delay, the host computer 106 triggers a start test signal to control the conveying mechanism 103 to move the detected product 201 to the second station 10342.

2. During the flow of inspected product 201 to second station 10342, host computer 106 automatically sets the light source 104 parameters and camera 105 parameters and turns on light source 104 and camera 105.

3. After the detected product 201 is stabilized at the second station 10342, the camera 105 starts to take pictures and take pictures, and cooperates with the host 106 to perform two-dimensional code recognition (the two-dimensional code is pasted on the detected product, and the identity of the detected product can be recognized through the two-dimensional code recognition), target position defect detection and test result signal output in sequence.

4. After the host 106 obtains the test result, if the test result is qualified, the detected product 201 is moved to the third station 10343, the alarm lamp is kept green, and if the test result is unqualified, the detected product 201 is moved to the first station 10341, the alarm lamp turns red, and the buzzer sounds.

5. If the result is a pass test, the product carrier 1032 will automatically move to the initial first station 10341 after the inspection personnel takes away the inspected product 201; if the result is that the test is unqualified, the staff takes away after being detected product 201, presses the reset button once, and bee calling organ stops the sound, and the alarm lamp resumes green, waits for next test.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An automatic optical inspection apparatus, comprising: the device comprises a base, a light shield, a transmission mechanism, a light source, a camera, a host and a display; wherein the content of the first and second substances,

2. The automatic optical inspection apparatus of claim 1, wherein the light source comprises a flat panel light source, the flat panel light source being disposed horizontally and having a light exit direction facing downward;

3. The automatic optical inspection device of claim 2, further comprising: a Z-axis driving mechanism arranged along the vertical direction;

4. The automatic optical inspection device of claim 1, wherein the light shield is formed of a black light blocking material or the inner walls of the light shield are coated with a black light blocking material.

5. The automatic optical inspection apparatus according to claim 1, wherein the upper surface of the transport mechanism is formed of a black light-blocking material, or the upper surface of the transport mechanism is coated with a black light-blocking material.

6. The automatic optical inspection device of claim 1, wherein the transport mechanism comprises: the Y-axis guide rail is arranged on the base along the horizontal direction, and the product carrier is arranged on the Y-axis guide rail;

the product carrier is used for bearing a detected product;

the Y-axis guide rail is used for driving the product carrier to move into or out of the internal shading environment.

7. The automatic optical inspection device of claim 6, wherein the transport mechanism further comprises: the Y-axis guide rail cover plate is arranged between the Y-axis guide rail and the product carrier;

8. The automatic optical inspection apparatus of claim 6, wherein the product carrier includes a universal substrate and a replaceable fixture;

the universal base plate is connected with the Y-axis guide rail;

9. The automatic optical inspection device of claim 6, wherein a product inspection sensor is disposed on the product carrier;

10. The automatic optical inspection apparatus of claim 1, wherein the transport station of the transport mechanism comprises: the device comprises a first station, a second station and a third station, wherein the first station is used for placing detected products and taking out the detected products which are unqualified in detection;

11. The automatic optical detection device of claim 1, wherein the base is provided with a movable support frame at the bottom thereof, and the movable support frame comprises a support frame body and universal wheels arranged at the bottom of the support frame body;

12. The automatic optical inspection device of claim 1, wherein the light shield is provided with access doors on the sides and/or top, the access doors being formed of a light blocking material.

13. The automatic optical inspection device of claim 1, wherein the top and/or side of the light shield is formed with an inspection window, and the inspection window is formed by a dark brown acrylic plate.

14. The automatic optical inspection device of claim 1, further comprising: a warning device;