CN219657502U

CN219657502U - Multi-position automatic defect detection equipment based on machine vision

Info

Publication number: CN219657502U
Application number: CN202123446422.6U
Authority: CN
Inventors: 经曾元; 田文兴; 卢熙昌; 顾闻达; 刘鹏飞; 丁有爽; 邵天兰
Original assignee: Mecarmand Shanghai Robot Technology Co ltd; Mech Mind Robotics Technologies Co Ltd
Current assignee: Mecarmand Shanghai Robot Technology Co ltd; Mech Mind Robotics Technologies Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-09-08
Anticipated expiration: 2031-12-31

Abstract

The present disclosure provides a multi-position automatic defect detection device based on machine vision, applied to the detection technical field, the device includes: the support seat is provided with a support plane, and a moving platform is arranged on the support plane and is used for clamping an object to be detected so as to move relative to the support seat; the first detection part is used for acquiring an image of a first area of the object to be detected at a first position; the second detection part acquires an image of a second area and an image of a third area of the object to be detected at the second position; a third detection unit that acquires an image of a fourth region and an image of a fifth region of the object to be detected at a third position; and the processing device is in communication connection with the first detection component, the second detection component and the third detection component and is used for receiving and analyzing the acquired image data and generating a defect detection result and an analysis result. The equipment can realize automatic detection of the articles to be detected, reduce manual operation and improve detection efficiency.

Description

Multi-position automatic defect detection equipment based on machine vision

Technical Field

The disclosure relates to the technical field of detection, in particular to a multi-position automatic defect detection device based on machine vision.

Background

With the development of technology, an automatic production mode gradually replaces a manual operation production mode, the production rhythm and efficiency are greatly accelerated, and with the increasing maturity of machine vision technology, the method is also increasingly applied to more production and manufacturing fields. In the 3C production line, the detection of the 3C products mostly adopts manual work to carry out visual detection on the production quality of the products, and carries out manual screening, so that the efficiency is low. In addition, for smaller products in the 3C products, or for smaller defects, manual screening and identification cannot be performed quickly and effectively. The resolution of the image processing technology also has relatively high resolution for smaller products and smaller defects, so it is becoming more and more necessary to design a multi-position automatic defect detection device based on machine vision.

Disclosure of Invention

In order to solve the above-mentioned problem in the prior art, the present disclosure provides a multi-position automatic defect detection device based on machine vision, which can realize detection of a plurality of areas of an object to be detected, and automatically detect the object to be detected by collecting images of different areas of the object to be detected, thereby effectively improving the detection efficiency of products.

The present disclosure provides a machine vision based multi-location automatic defect detection apparatus including, but not limited to: the support seat is provided with a support plane, and a moving platform is arranged on the support plane and is used for clamping an object to be detected so as to move relative to the support seat; the first detection component is arranged at a first position of the supporting plane and is used for acquiring an image of a first area of the object to be detected at the first position; the second detection component is arranged at a second position of the supporting plane and is used for acquiring images of a second area and images of a third area of the object to be detected at the second position; the third detection component is arranged at a third position of the supporting plane and is used for acquiring an image of a fourth area and an image of a fifth area of the object to be detected at the third position; the processing device is in communication connection with the first detection component, the second detection component and the third detection component and is used for receiving and analyzing the image data acquired by the first detection component, the second detection component and the third detection component to generate a defect detection result and an analysis result; wherein the first, second and third positions are located around the mobile platform, at least one of the first, second and third detection means comprising a 3D camera.

In some exemplary embodiments of the present disclosure, each of the first, second, and third detection members includes a first telescoping control assembly mounted on the support plane; the first telescopic control assembly comprises at least one first-direction telescopic control part, at least one second-direction telescopic control part and at least one third-direction telescopic control part; the first direction is perpendicular to the supporting plane, the first direction, the second direction and the third direction are perpendicular to each other, at least one first direction expansion control part is connected with the supporting plane, and the second direction expansion control part is connected with the first direction expansion control part and the third direction expansion control part.

In some exemplary embodiments of the present disclosure, the first detecting means further includes: the first image acquisition device is connected with the first telescopic control assembly; the first image acquisition device comprises a first camera, a coaxial light source and a light source cover which are fixedly connected with at least one third-direction telescopic control part; wherein, the shooting direction of the first camera is parallel to the first direction, and the first camera comprises a 2D camera.

In some exemplary embodiments of the present disclosure, the second detecting part further includes a second image acquiring device and a third image acquiring device connected to the first telescopic control assembly, respectively; the second image acquisition device comprises a second camera and a strip-shaped light source, wherein the second camera is connected with the third-direction telescopic control part, and the strip-shaped light source is arranged to rotate in a plane formed by the first direction and the third direction relative to the third-direction telescopic control part; the third image acquisition device comprises a third camera and a spherical light source which are fixedly connected with the third direction expansion control part; the second camera and the third camera are oppositely arranged, the shooting directions of the second camera and the third camera are parallel to the third direction, and the second camera and the third camera comprise 2D cameras.

In some exemplary embodiments of the present disclosure, the third detection part further includes a second telescoping control assembly mounted on the support plane; the second telescopic control assembly comprises at least one first-direction telescopic control part, at least one second-direction telescopic control part and at least one third-direction telescopic control part; the first direction is perpendicular to the supporting plane, the first direction, the second direction and the third direction are perpendicular to each other, the second direction expansion control part is fixedly connected with the supporting plane through the base, and the third direction expansion control part is connected with the first direction expansion control part and the second direction expansion control part.

In some exemplary embodiments of the present disclosure, the third detecting part further includes: a fourth image acquisition device connected with the first telescopic control assembly and a fifth image acquisition device connected with the second telescopic control assembly; the fourth image acquisition device comprises a fourth camera and a strip-shaped light source, wherein the fourth camera is connected with a third-direction telescopic control part of the first telescopic control assembly, and the strip-shaped light source is arranged to rotate in a plane formed by the first direction and the third direction relative to the third-direction telescopic control part; the fifth image acquisition device comprises a fifth camera connected with the first direction expansion control part of the second expansion control component; wherein the fourth camera comprises a 2D camera and the fifth camera comprises a 3D camera.

In some exemplary embodiments of the present disclosure, a display device is further included; the display device is arranged on the supporting seat and used for displaying images acquired by at least one of the first detection component, the second detection component and the third detection component and/or displaying defect detection results and analysis results generated by the processing device.

In some exemplary embodiments of the present disclosure, the moving platform includes a rotating platform or a linear platform, and a clamping portion perpendicular to a moving direction of the moving platform is disposed on the rotating platform or the linear platform, and the clamping portion clamps the object to be detected, so that the first area to the fifth area are not blocked.

In some exemplary embodiments of the present disclosure, a feeding device and a discharging device are further included; the feeding device is arranged at a fourth position close to the mobile platform and is used for feeding the object to be detected to the clamping part; the blanking device is arranged at a fifth position close to the moving platform and is used for blanking the detected article to an article qualified area or an article unqualified area.

In some exemplary embodiments of the present disclosure, a control device is further included; the control device is configured to control at least one of the first detection component, the second detection component, the third detection component, the processing device, the feeding device and the discharging device.

According to the embodiment of the disclosure, the detection of different areas of the article to be detected at different positions is realized by arranging the plurality of detection components (the first detection component, the second detection component and the third detection component) on the support seat, in addition, the detection efficiency and the detection precision are improved by acquiring and analyzing at least one 3D image data of the article to be detected, and the analysis result is obtained by analyzing the detected image data, so that quality problems at different positions in production can be traced, and the production and manufacturing process can be effectively optimized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following brief description of the drawings of the embodiments will be given, it being understood that the drawings described below relate only to some embodiments of the present disclosure and not to limitations of the present disclosure, in which:

FIG. 1 schematically illustrates a schematic perspective view of a machine vision-based multi-position automatic defect detection apparatus according to an exemplary embodiment of the present disclosure;

FIG. 2 schematically illustrates a structural schematic diagram of a first inspection component of a multi-position automatic defect inspection apparatus according to an exemplary embodiment of the present disclosure;

FIG. 3 schematically illustrates a structural schematic diagram of a second inspection component of a multi-position automatic defect inspection apparatus according to an exemplary embodiment of the present disclosure;

FIG. 4 schematically illustrates a structural schematic diagram of a third inspection component of the multi-position automatic defect inspection apparatus according to an exemplary embodiment of the present disclosure;

FIG. 5 schematically illustrates another angular schematic view of the third detection member of FIG. 4;

FIG. 6 schematically illustrates a schematic structure of a mobile platform of a multi-position automatic defect detection apparatus according to an exemplary embodiment of the present disclosure;

fig. 7 schematically shows a partial enlarged view of the holding portion of the moving platform of fig. 6 holding an article to be measured.

Detailed Description

While the present disclosure will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the present disclosure, it is to be understood before this description that one of ordinary skill in the art can modify the disclosure described herein while achieving the technical effects of the present disclosure. Accordingly, it is to be understood that the foregoing description is a broad disclosure by those having ordinary skill in the art, and is not intended to limit the exemplary embodiments described in the present disclosure.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.

A machine vision-based multi-position automatic defect detection apparatus according to an embodiment of the present disclosure is described in detail below with reference to fig. 1 to 7.

As shown in fig. 1, the machine vision-based multi-position automatic defect detecting apparatus 100 of the embodiment of the present disclosure includes a support base 10, a moving platform 20, a first detecting part 30, a second detecting part 40, a third detecting part 50, a control device 60, and a display device 70.

In an embodiment of the present disclosure, the multi-location automatic defect detection apparatus 100 further includes a processing device (not shown in the figures), which may be an apparatus having a Central Processing Unit (CPU), such as a desktop computer, a mobile computer, a server, or the like.

As shown in fig. 1, the top of the supporting seat 10 is provided with a supporting plane 11, and a moving platform 20 is disposed on the supporting plane 11, and the moving platform 20 is used for clamping an object to be detected to move relative to the supporting seat 10, so that the object to be detected can pass through the first detecting component 30, the second detecting component 40 and the third detecting component 50, and detection of the object to be detected is realized. In this embodiment, the moving platform 20 is configured as a rotating platform, and can rotate around the center of the rotating platform relative to the supporting seat 10, and the moving platform 20 makes the object to be detected pass through different detecting components in sequence during the rotation process, so as to collect images of different areas of the object to be detected.

In other alternative embodiments, the moving platform may be configured as a linear platform, and when the moving platform moves from one end of the straight line to the other end, the moving platform passes through the first detecting component, the second detecting component and the third detecting component disposed at different positions of the straight line in sequence, so as to finally realize image acquisition of different areas of the object to be detected. In other alternative embodiments, the mobile platform may be a mobile platform with other irregular paths, i.e. the movement track of the mobile platform is irregularly shaped, for example, may be curved. And the motion track of the mobile platform is not limited in the embodiment of the disclosure.

In this embodiment, through setting up into circular shape rotary platform, can effectively reduce the length of production line, make the article that waits to detect can accomplish the defect detection of all regions on shorter production line, can effectively improve defect detection's efficiency, reduce the length of production line simultaneously, effectively practice thrift the cost.

As shown in fig. 1, the first, second and third detecting members 30, 40 and 50 are disposed on the supporting plane 11 near the periphery of the moving platform 20, thereby facilitating detection of the object to be detected held on the moving platform 20.

The first detecting component 30 is disposed at a first position of the supporting plane 11, and acquires an image of a first area of the object to be detected when the object to be detected is driven by the moving platform 20 to move to the first position. The second detecting unit 40 is disposed at a second position of the supporting plane 11, and acquires an image of a second area and an image of a third area of the object to be detected at the second position when the object to be detected is moved to the second position by the moving platform 20. The third detecting part 50 is disposed at a third position of the supporting plane 11, and acquires an image of a fourth area and an image of a fifth area of the object to be detected at the third position when the object to be detected is moved to the third position by the moving flat belt 20.

In the embodiment of the present disclosure, the first position, the second position and the third position represent three different positions on the supporting plane 11, as shown in fig. 1, included angles between the first position, the second position and the third position form an angle of 120 degrees, so as to implement detection on objects to be detected in different positions. In other alternative embodiments, the included angle may be other angles, and the first, second, and third positions may be asymmetric positions.

The first detecting member 30, the second detecting member 40, and the third detecting member 50 according to the embodiment of the present disclosure will be described in detail with reference to fig. 2 to 5.

Fig. 2 schematically illustrates a structural diagram of a first inspection part of a multi-position automatic defect inspection apparatus according to an exemplary embodiment of the present disclosure. Fig. 3 schematically illustrates a structural diagram of a second inspection part of the multi-position automatic defect inspection apparatus according to an exemplary embodiment of the present disclosure. Fig. 4 schematically illustrates a structural diagram of a third inspection part of the multi-position automatic defect inspection apparatus according to an exemplary embodiment of the present disclosure. Fig. 5 schematically shows a structural view of the third detecting member of fig. 4 at another angle.

As shown in fig. 2 to 5, each of the first detecting part 30, the second detecting part 40, and the third detecting part 50 includes a first expansion control assembly 80. Wherein the first telescoping control assembly 80 is mounted to the support plane 11 by a base plate 810.

The first telescopic assembly 80 comprises at least one first directional telescopic control portion 801, at least one second directional telescopic control portion 802 and at least one third directional telescopic control portion 803. As can be seen in connection with fig. 1 and 2, the first direction of the first direction expansion control portion 801 is perpendicular to the support plane 11, i.e. the first direction expansion control portion 801 is movable in the Z-axis direction (first direction) in fig. 2. The second direction expansion control section 802 is movable in the Y-axis direction (second direction) in fig. 2. The third-direction expansion control unit 803 is movable in the X circumferential direction (third direction) in fig. 2. The first direction, the second direction and the third direction are perpendicular to each other. Thereby ensuring that the second telescoping assembly 80 can be adjusted in all directions.

The bottom of the first direction expansion control portion 801 in the first expansion assembly 80 is fixedly connected with the bottom plate 810, and is fixedly connected with the support plane 11 through the bottom plate 810. The second direction expansion control unit 802 is connected to the first direction expansion control unit 801 and the third direction expansion control unit 803, respectively.

In the embodiment of the present disclosure, the first direction expansion control portion 801, the second direction expansion control portion 802, and the third direction expansion control portion 803 are respectively provided in 3, wherein the three third direction expansion control portions 803 are respectively connected to a first camera, a coaxial light source, and a light source cover described later, whereby the positions of the first camera, the coaxial light source, and the light source cover can be respectively adjusted, and precise adjustment control can be realized. In other embodiments of the present disclosure, the first telescoping assembly 80 further includes an adjustment fastening handle 804 that may be used to adjust the degree of fastening of the first directional telescoping control section 801 and/or to adjust the degree of fastening of the second directional telescoping control section 802.

In other alternative embodiments, the number of the first direction expansion control part, the second direction expansion control part and the third direction expansion control part can be adjusted according to actual requirements so as to meet different use environments.

As shown in fig. 2, the first detecting unit 30 includes, in addition to the first telescopic assembly 80 described above, a first image acquiring device 310, and the first image acquiring device 310 is connected to the first telescopic control assembly 80. Specifically, the first image acquisition device 310 is fixedly connected to the third-direction expansion control section 803 of the first expansion control assembly 80. Wherein the first telescopic control assembly 80 is provided with three third direction telescopic control portions 803. The first image acquisition device 310 includes a first camera 311, a coaxial light source 312, and a light source cover 313. The first camera 311, the coaxial light source 312 and the light source cover 313 are fixedly connected with three different third-direction telescopic control parts 803 of the first telescopic control assembly 80 respectively, so as to realize respective adjustment and improve control accuracy.

The shooting direction of the first camera 311 is parallel to the first direction, that is, parallel to the Z axis direction, specifically, the shooting is performed from top to bottom from the Z axis, when the object to be detected is placed, the side facing the first camera is a metal end surface, and in the production and manufacturing process of the product, the problem of scratch, scratch or bruise (three injuries) easily occurs, so that defects appear on the surface of the product, and the yield of the product is affected. Therefore, the first image acquisition device 310 in the first detecting component 30 is used for acquiring the image of the first area of the object to be detected, and finally the processing device is used for analyzing to determine whether the first area has the defect problem caused by scratch, scratch or bruise. According to the embodiment of the disclosure, the first image acquisition device 310 is arranged on the first telescopic control assembly 80, so that the position of the first image acquisition device 310 is conveniently adjusted, the acquired photo is clearer, and the acquired detection result is more accurate.

In an embodiment of the present disclosure, the first camera 311 may employ, for example, a 2D camera, and the user takes a 2D picture. The height of the first camera 311 from the object to be detected may be adjusted by adjusting the first direction telescoping control part 801 of the first telescoping assembly 80.

In the embodiment of the disclosure, when the first area of the object to be detected is detected, the metal end face of the detected object to be detected is detected, and the metal end face has the problem of higher reflectivity, so that the interference of the reflection of the metal end face of the object to be detected is reduced or overcome by arranging the coaxial light source 312, thereby more clearly acquiring the image of the first area of the object to be detected, and enabling the acquired detection result to be more accurate.

As shown in fig. 3, the second detecting section 40 includes, in addition to the first telescoping control assembly 80 described above, a second image acquiring device 410 and a third image acquiring device 420, which are respectively connected to the first telescoping control assembly 80.

The second image acquisition device 410 includes a second camera 411 and a bar-shaped light source 412 connected to a third direction expansion control section 803. Wherein the bar-shaped light source 412 is rotatable with respect to the third direction expansion control part. Specifically, the bar-shaped light source 412 may rotate in a plane formed by the first direction and the third direction with respect to the third direction expansion control part.

In the embodiment of the disclosure, by adopting the strip light source 412, the edge detection damage condition of the component can be effectively determined, for example, when the object to be detected is a 3C network port, by setting the strip light source, whether the LED lamp beads (the second area of the object to be detected) of the network port are damaged can be seen more clearly.

The third image acquisition device 420 includes a third camera 421 and a spherical light source 422 fixedly connected to another third-direction expansion control section 803.

In the embodiment of the disclosure, the rugged condition can be more clearly observed by adopting the spherical light source, for example, when the object to be detected is a 3C net mouth, a photo of damage to the end face of the insulating column (the third area of the object to be detected) can be more clearly shot by adopting the spherical light source 422, so that the generated defect detection result is more accurate after the processing device acquires the image data.

As shown in fig. 3, the second camera 411 and the third camera 421 are oppositely arranged, the shooting directions of the second camera 411 and the third camera 421 are parallel to the third direction, and when detecting an object to be detected, the object to be detected stays at a position between the second camera 411 and the third camera 421, so that the second camera 411 and the third camera 421 can simultaneously acquire images of the same object to be detected, and the efficiency of image acquisition is effectively improved.

In an embodiment of the present disclosure, the second camera 411 and the third camera 421 may be, for example, 2D cameras. In other alternative embodiments, other types of image acquisition devices are possible, such as infrared cameras and the like.

Fig. 4 and 5 show schematic structural diagrams of a third detection member of an embodiment of the present disclosure.

As shown in fig. 4 and 5, the third detection member 50 includes a second telescoping control assembly 90 in addition to the first telescoping control assembly 80 described above. Wherein the second telescopic control assembly 90 is fixedly connected with the supporting plane 11. Specifically, the second expansion and contraction control assembly 90 includes at least one first-direction expansion and contraction control portion 901, at least one second-direction expansion and contraction control portion 902, and at least one third-direction expansion and contraction control portion 903. The first direction is perpendicular to the supporting plane 11, the first direction, the second direction and the third direction are perpendicular to each other, the second direction expansion control portion 902 is fixedly connected with the supporting plane 11 through the base 904, and the third direction expansion control portion 903 is connected with the first direction expansion control portion 901 and the second direction expansion control portion 902.

The third detection unit 50 further comprises a fourth image acquisition device 510 connected to the first telescopic control assembly 80 and a fifth image acquisition device 520 connected to the second telescopic control assembly 90.

As shown in fig. 4, the fourth image acquisition apparatus 510 includes a fourth camera 511 and a bar-shaped light source 512 fixedly connected to the third-direction expansion control section 803 of the first expansion control assembly 80. The bar-shaped light source 512 is configured to rotate in a plane formed by the first direction and the third direction with respect to the third direction expansion control part 803, and the fourth camera 511 may be a 2D camera, for example.

As shown in fig. 5, the fifth image acquisition device 520 includes a fifth camera connected to the first-direction expansion control section 901 of the second expansion control unit 90. The fifth camera may be, for example, a 3D camera, in particular a 3D line scan camera.

In the embodiment of the disclosure, by setting the 3D line scanning camera, more accurate identification precision can be realized, and the three-dimensional parameters of the product can be obtained, so that the detection result is more accurate. For example, taking the case of detecting the 3C portal as an example, the absence and deformation of the golden finger (the fourth region of the object to be detected) in the 3C portal can be detected by providing the fourth camera 511, and the flatness of the Pin needle end face (the fifth region of the object to be detected) can be detected by providing the 3D line scan camera. In addition, the fourth camera and the fifth camera are oppositely arranged, so that detection can be carried out on a plurality of areas of the same article to be detected at the same time, and the faster detection efficiency is realized.

Fig. 6 schematically illustrates a structural diagram of a moving platform of the multi-position automatic defect detection apparatus according to an exemplary embodiment of the present disclosure. Fig. 7 schematically shows a partial enlarged view of the holding portion of the moving platform of fig. 6 holding an article to be measured.

As shown in fig. 6, the moving platform 20 of the multi-position automatic defect detecting apparatus of the embodiment of the present disclosure is disposed on the support plane 11 of the support base, and can relatively move with respect to the support plane 11. A plurality of holding portions 21 (for example, 10, 12 or other numbers) are provided on the moving platform 20, and the holding portions 21 are used to hold the object to be inspected, and as shown in fig. 7, the holding portions 21 hold the object to be inspected X for inspection. In the process of clamping the object to be detected by the clamping part, the first area to the fifth area of the object to be detected can be prevented from being shielded, so that the object to be detected by the first detection part, the second detection part and the third detection part can be conveniently detected.

In the embodiment of the present disclosure, as shown in fig. 1, the display device 70 of the multi-position automatic defect detecting apparatus 100 is provided on the support base 10. For example, the support may be disposed on the support plane 11 of the support base 10, or may be disposed at other positions of the support base 10.

The display device 70 is communicatively connected to the first detecting member 30, the second detecting member 40, and the third detecting member 50, and is configured to display an image acquired by at least one of the first detecting member 30, the second detecting member 40, and the third detecting member 50. In addition, the display device 70 may display the defect detection result and the analysis result generated by the processing device, so that the worker may control at least one of the first detection part 30, the second detection part 40, and the third detection part 50 to adjust when seeing the defect detection result and the analysis result displayed by the display device 70, or adjust the production process according to the defect detection result.

In an embodiment of the present disclosure, the multi-position automatic defect detecting apparatus 100 may further include a feeding device and a discharging device (not shown in the drawings).

The feeding device is arranged at a fourth position close to the moving platform and is used for feeding the object to be detected to the clamping part. For example, the fourth position may be a starting position of the moving platform, in which the loading device loads the object to be detected onto the moving platform, so that the object to be detected passes through different detecting members with the movement of the moving platform.

The blanking device is arranged at a fifth position close to the moving platform and is used for blanking the detected article to the article qualified area or the article unqualified area. For example, the fifth position may be an end position of the moving platform, where the blanking device offloads the inspected article to the article-passing area or the article-non-passing area.

In the embodiment of the disclosure, for example, when the moving platform adopts a disc-shaped rotating platform as shown in fig. 1, the feeding device and the discharging device may be disposed at adjacent positions. For another example, when the moving platform adopts a linear platform, the feeding device and the discharging device may be respectively disposed at a first end and a second end opposite to each other of the linear platform.

In the embodiment of the present disclosure, as shown in fig. 1, a control device 60 of a multi-position automatic defect detecting apparatus 100 is provided on a support base 10. For example, on the support plane 11 of the support base 10. The control device 60 is configured to control at least one of the first detecting component 30, the second detecting component 40, the third detecting component 50, the processing device, the feeding device, and the discharging device. For example, the first detecting unit 30, the second detecting unit 40, and the third detecting unit 50 may be adjusted by the control device to align the objects to be detected, thereby obtaining more accurate and clear image data. For example, the control processing device processes the image data, or controls the feeding device to feed, or controls the discharging device to sort the qualified articles and the unqualified articles.

The workflow of the multi-position automatic defect inspection apparatus of the embodiments of the present disclosure will be described in detail below in connection with the moving process of an article to be inspected on the multi-position automatic defect inspection apparatus.

First, after the object X to be detected is driven to the fourth position close to the moving platform 20, the object X to be detected is fed onto the clamping portion 21 of the moving platform 20 by the feeding device. Next, the mobile platform receives the start command sent by the PLC, so that the mobile platform starts to move, the object to be detected moves along with the movement of the mobile platform 20, and each detection component (for example, the first detection component 30, the second detection component 40, and the third detection component 50) enters an initialized state, and the object to be detected sequentially passes through different detection components to detect different areas of the object to be detected. Then, each detecting component detects the passing object to be detected, the collected image data is transmitted to the processing device for processing, and the processing device processes the collected image and then sends the processed defect detection result and analysis result to the display device 70 for display. In this process, a worker may perform manual adjustment or the like of the multi-position automatic defect detecting apparatus by operating the control device 60.

When the object to be detected enters the position where the first detecting component 30 is located, for example, the first position, the PLC controls the first camera and the coaxial light source to be turned on, image acquisition is carried out on the metal three-damaged surface of the workpiece, and the acquired image is stored. After the image acquisition of the first detecting component 30 is completed, the PLC controls the moving platform 20 to move, and when the object to be detected reaches the position where the second detecting component 40 is located, for example, the second position, the PLC controls the second camera, the strip light source, the third camera and the spherical light source to be turned on, so as to acquire images of the LED lamp beads and the insulating column cross section of the workpiece, and store the acquired images. After the image collection of the second detecting component 40 is completed, the PLC continues to control the moving platform 20 to move, and when the object to be detected reaches the position where the third detecting component 50 is located, for example, the third position, the PLC controls the fourth camera and the strip light source, and the 3D line scanning camera to shoot the workpiece, for example, the fourth camera performs image collection and storage on the golden finger of the workpiece, and the 3D line scanning camera scans and shoots the Pin end face of the workpiece, and stores the point cloud image data. After the image acquisition is completed, analyzing the image data through a processing device to generate a defect detection result and an analysis result, and finally controlling a blanking device to blanking the detected object to a corresponding area.

Those skilled in the art will appreciate that the embodiments described above are exemplary and that modifications may be made by those skilled in the art, and that the structures described in the various embodiments may be freely combined without conflict in terms of structure or principle.

Having described the preferred embodiments of the present disclosure in detail, those skilled in the art will readily appreciate that various changes and modifications may be made without departing from the scope and spirit of the following claims, and that the present disclosure is not limited to the implementations of the exemplary embodiments set forth in the specification.

Claims

1. A machine vision-based multi-location automatic defect detection apparatus, comprising:

the support seat is provided with a support plane, and a moving platform is arranged on the support plane and is used for clamping an object to be detected so as to move relative to the support seat;

the first detection component is arranged at a first position of the supporting plane and is used for acquiring an image of a first area of the object to be detected at the first position;

the second detection component is arranged at a second position of the supporting plane and is used for acquiring images of a second area and images of a third area of the object to be detected at the second position;

the third detection component is arranged at a third position of the supporting plane and is used for acquiring an image of a fourth area and an image of a fifth area of the object to be detected at the third position;

the processing device is in communication connection with the first detection component, the second detection component and the third detection component and is used for receiving and analyzing the image data acquired by the first detection component, the second detection component and the third detection component to generate a defect detection result and an analysis result;

wherein the first, second and third positions are located around the mobile platform,

at least one of the first, second and third detection means comprises a 3D camera.

2. The apparatus of claim 1, wherein each of the first, second, and third detection members comprises a first telescoping control assembly mounted on the support plane;

the first telescopic control assembly comprises at least one first-direction telescopic control part, at least one second-direction telescopic control part and at least one third-direction telescopic control part;

the first direction is perpendicular to the supporting plane, the first direction, the second direction and the third direction are perpendicular to each other, at least one first direction expansion control part is connected with the supporting plane, and the second direction expansion control part is connected with the first direction expansion control part and the third direction expansion control part.

3. The apparatus of claim 2, wherein the first detection means further comprises:

the first image acquisition device is connected with the first telescopic control assembly;

the first image acquisition device comprises a first camera, a coaxial light source and a light source cover which are fixedly connected with at least one third-direction telescopic control part;

wherein, the shooting direction of the first camera is parallel to the first direction, and the first camera comprises a 2D camera.

4. The apparatus of claim 2, wherein the second detection means further comprises second and third image acquisition means respectively connected to the first telescoping control assembly;

the second image acquisition device comprises a second camera and a strip-shaped light source, wherein the second camera is connected with the third-direction telescopic control part, and the strip-shaped light source is arranged to rotate in a plane formed by the first direction and the third direction relative to the third-direction telescopic control part;

the third image acquisition device comprises a third camera and a spherical light source which are fixedly connected with the third direction expansion control part;

the second camera and the third camera are oppositely arranged, the shooting directions of the second camera and the third camera are parallel to the third direction, and the second camera and the third camera comprise 2D cameras.

5. The apparatus of claim 2, wherein the third detection means further comprises a second telescoping control assembly mounted on the support plane;

the second telescopic control assembly comprises at least one first-direction telescopic control part, at least one second-direction telescopic control part and at least one third-direction telescopic control part;

the first direction is perpendicular to the supporting plane, the first direction, the second direction and the third direction are perpendicular to each other, the second direction expansion control part is fixedly connected with the supporting plane through the base, and the third direction expansion control part is connected with the first direction expansion control part and the second direction expansion control part.

6. The apparatus of claim 5, wherein the third detection means further comprises: a fourth image acquisition device connected with the first telescopic control assembly and a fifth image acquisition device connected with the second telescopic control assembly;

the fourth image acquisition device comprises a fourth camera and a strip-shaped light source, wherein the fourth camera is connected with a third-direction telescopic control part of the first telescopic control assembly, and the strip-shaped light source is arranged to rotate in a plane formed by the first direction and the third direction relative to the third-direction telescopic control part;

the fifth image acquisition device comprises a fifth camera connected with the first direction expansion control part of the second expansion control component;

wherein the fourth camera comprises a 2D camera and the fifth camera comprises a 3D camera.

7. The apparatus of any one of claims 1 to 6, further comprising a display device;

the display device is arranged on the supporting seat and used for displaying images acquired by at least one of the first detection component, the second detection component and the third detection component and/or displaying defect detection results and analysis results generated by the processing device.

8. The apparatus according to claim 1, wherein the moving platform includes a rotating platform or a linear platform, and a holding portion perpendicular to a moving direction of the moving platform is provided on the rotating platform or the linear platform, and the holding portion holds the object to be detected so that the first to fifth areas are not shielded.

9. The apparatus of claim 8, further comprising a loading device and a blanking device;

the feeding device is arranged at a fourth position close to the mobile platform and is used for feeding the object to be detected to the clamping part;

the blanking device is arranged at a fifth position close to the moving platform and is used for blanking the detected article to an article qualified area or an article unqualified area.

10. The apparatus of claim 9, further comprising a control device;

the control device is configured to control at least one of the first detection component, the second detection component, the third detection component, the processing device, the feeding device and the discharging device.