Material six-surface testing device
Through the combination of dual-station shooting and AOI detection system, high-definition industrial cameras and 3D reading heads are used to collect plane and stereoscopic image information of electronic components, which solves the problem that traditional detection technology cannot meet the pin size drop and bending detection, and realizes the problem of Higher detection accuracy and effect.
Patent Information
- Application Number
- CN202420278002.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-05
AI Technical Summary
Traditional visual inspection technology cannot meet the detection requirements of defects such as drop, missing and bend of pin size of electronic components. Manual inspection is time-consuming and labor-intensive and has poor results.
Design a six-sided material testing device to capture the plane and stereoscopic image information of the material through dual stations, and compare it with the AOI detection system, combining high-definition industrial cameras and 3D reader heads to collect and recognize the image information of the dual-detection stations. .
Improve the accuracy and effect of product appearance detection, and accurately determine whether the appearance of the material is qualified through the optimization comparison of 2D and 3D image data.
Smart Images
Figure CN222280484U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material appearance visual detection, in particular to a material six-side testing device. Background Art
[0002] With the continuous advancement of science and technology, mechanization, automation, intelligence, and standardized production have gradually become a major trend in social development, and have gradually replaced traditional manual labor in all walks of life, injecting new impetus into the sustainable development of enterprises. In recent years, electronic components have been widely used. For example, the ADCU, an autonomous driving domain controller used in new energy vehicles, is an intelligent computing platform with many groups of connector pins on its outer surface. In the final product appearance quality inspection, in addition to the need to detect whether the product appearance has scratches, missing spray identification information, surface color differences, etc., it is also necessary to detect the size and position of the product's pins, whether they are missing, bent, etc. Traditionally, manual observation is generally used. This method is not only time-consuming and labor-intensive, but also the defective product sorting rate is greatly affected by human factors, and the effect is not ideal.
[0003] Visual inspection technology is now commonly used to replace manual visual observation, that is, the product is converted into image information through an image capture device, and converted into digital signals according to pixel distribution, brightness, color and other information through a dedicated processing system. The image system performs various operations on these signals to extract product features, and then more discriminative results are used to compare qualified and unqualified products. This type of equipment often collects planar image information on six sides of the material for comparison and judgment, and cannot meet the detection requirements of defects such as pin size difference, missing and bending of multiple groups of pins. Therefore, designing a new visual inspection device is particularly critical. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a six-side material testing device which can shoot through a double station to produce two-dimensional and three-dimensional image information for comparison, thereby improving the accuracy of product appearance detection.
[0005] The technical solution adopted by the utility model is: the utility model includes a main controller, a first visual detection mechanism and a second visual detection mechanism, an AOI detection system is configured in the main controller, the first visual detection mechanism and the second visual detection mechanism are respectively used to capture the plane image information and the three-dimensional image information of the material, and send them to the AOI detection system for identification and comparison, a positioning module is arranged at the front end of the first visual detection mechanism, and a material transfer mechanism is also arranged between the first visual detection mechanism and the second visual detection mechanism.
[0006] Furthermore, a high-definition industrial camera is arranged in the first visual inspection mechanism, and a 3D reader is arranged in the second visual inspection mechanism. The first visual inspection mechanism and the second visual inspection mechanism have the same structure and both include a material moving module and a camera detection system. The material moving module includes a material moving bracket, a material moving cylinder arranged on the top of the material moving bracket, a material moving track arranged parallel to the material moving cylinder through a track bracket, and a material moving tooling. The material moving cylinder drives the material moving tooling to slide on the material moving track.
[0007] Furthermore, the camera detection system includes a first camera module and a second camera module respectively arranged on the outside of the material moving bracket and the track bracket, and a third camera module and a fourth camera module respectively arranged below and above the material moving tooling, and the material moving tooling is designed with high-transmittance materials.
[0008] Furthermore, the material transfer tooling includes a first connecting block, a second connecting block and a placement plate. The placement plate is connected between the first connecting block and the second connecting block, and is slidingly connected to the material transfer cylinder and the material transfer track through the first connecting block and the second connecting block respectively. The placement plate is designed with high-transmittance material, and a rotating module is also arranged below the initial position of the placement plate.
[0009] Furthermore, the rotating module includes a rotating bracket, a vertical cylinder arranged on the top of the rotating bracket, and a rotating cylinder connected to the output end of the vertical cylinder. An inflatable shaft is also arranged on the rotating axis of the rotating cylinder, and a rotating interface adapted to the inflatable shaft is arranged on the placement plate.
[0010] Furthermore, the first camera module and the second camera module have the same structure, both including a camera bracket, a horizontal cylinder arranged on the top of the camera bracket, a second vertical cylinder slidingly matched with the horizontal cylinder through a first slider, and a second slider slidingly matched with the second vertical cylinder, and the horizontal cylinder and the material transfer cylinder are arranged perpendicular to each other.
[0011] Furthermore, the third camera module includes a second horizontal cylinder and a vertical bracket slidingly matched with the second horizontal cylinder, the second horizontal cylinder and the material transfer cylinder are perpendicular to each other and are located between the material transfer cylinder and the material transfer track, and the fourth camera module includes a camera gantry, a third horizontal cylinder arranged on the camera gantry, and a second vertical bracket slidingly matched with the third horizontal cylinder, the third horizontal cylinder and the material transfer cylinder are perpendicular to each other and are located between the material transfer cylinder and the material transfer track.
[0012] Furthermore, in the first visual detection mechanism, the high-definition industrial camera is arranged on the corresponding second slider, the vertical bracket and the second vertical bracket, and the annular light source is at the front end of the high-definition industrial camera. In the second visual detection mechanism, the 3D reader is arranged on the corresponding second slider, the vertical bracket and the second vertical bracket.
[0013] Furthermore, the positioning module includes a positioning bracket, a positioning plate is connected to the top of the positioning bracket, a positioning bar is detachably installed on the positioning plate, the number and setting position of the positioning bar can be adjusted according to actual conditions, and a positioning cylinder is also arranged on the positioning plate, and the position of the positioning cylinder corresponds to the positioning bar.
[0014] Finally, the material transfer mechanism includes a transfer bracket spanning above the first visual inspection mechanism and the second visual inspection mechanism, a material transfer cylinder arranged on the top of the transfer bracket, a material transfer vertical cylinder slidingly matched with the material transfer cylinder, and a material transfer suction cup connected to the output end of the material transfer vertical cylinder, and the material transfer suction cup is provided with a plurality of accordion suction heads connected to the external cylinder.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model uses the first visual inspection mechanism and the second visual inspection mechanism to shoot and collect two-dimensional and three-dimensional image information of six planes of the material through the dual stations, and sends the collected information to the AOI inspection system inside the main controller to perform image information recognition and comparison to determine whether the appearance of the material is qualified, and optimizes the comparison process through 2D and 3D image data to improve the accuracy and effect of appearance inspection. Before the material enters the first visual inspection mechanism, the positioning module is used to correct the placement position of the material so that the image information of the front view angle of each plane can be collected during the subsequent shooting process; the first, second, third and fourth camera modules are used to shoot the four planes of the material, left, right, top and bottom. After completion, the material transfer tool drives the material back to the initial position, and the material is rotated 90° by the rotation module, and the material is sent out again. The first and second camera modules are used to shoot the front and back two planes of the material to complete the plane image information collection of the six sides of the material, and the information is sent to the AOI detection system for processing; then the material is transferred to the second visual inspection mechanism through the material transfer mechanism, and the above process is repeated to shoot and collect the 3D image information of the six sides of the material, and the stereoscopic image information of the material is sent to the AOI detection system to complete this appearance detection process. Compared with the prior art, the utility model uses a double detection station to shoot and collect the plane and stereoscopic image information of the six surfaces of the material appearance, and the image information is recognized by the AOI detection system, and the stored standard digital image is compared with the actual detected image to obtain the detection result. Therefore, the utility model uses dual-station shooting to produce two-dimensional and three-dimensional image information for comparison, thereby improving the accuracy of product appearance detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0018] Figure 3 is a structural schematic diagram of the first visual detection mechanism;
[0019] Figure 4 is a structural schematic diagram of the second visual detection mechanism;
[0020] Figure 5 is a schematic diagram of the assembly structure of the material transfer tooling and the rotating module;
[0021] Figure 6 is a schematic diagram of the structure of the first camera module and the second camera module;
[0022] Figure 7 is a structural schematic diagram of the third camera module;
[0023] Figure 8 is a structural schematic diagram of the fourth camera module;
[0024] Fig. 9 is a structural schematic diagram of the positioning module;
[0025] Fig.10 It is a structural schematic diagram of the material transfer mechanism. DETAILED DESCRIPTION
[0026] like Figure 1 , Figure 2 and Fig.10 As shown, the utility model includes a main controller, a first visual inspection mechanism 1 and a second visual inspection mechanism 2, an AOI inspection system is configured in the main controller, the first visual inspection mechanism 1 and the second visual inspection mechanism 2 are used to capture the plane image information and the three-dimensional image information of the material, respectively, and send them to the AOI inspection system for identification and comparison, a positioning module 3 is arranged at the front end of the first visual inspection mechanism 1, and a material transfer mechanism 4 is also arranged between the first visual inspection mechanism 1 and the second visual inspection mechanism 2. The material transfer mechanism 4 includes a transfer bracket 38 spanning above the first visual inspection mechanism 1 and the second visual inspection mechanism 2, a transfer cylinder 39 arranged on the top of the transfer bracket 38, a material transfer vertical cylinder 40 slidably matched with the transfer cylinder 39, and a material transfer suction cup 41 connected to the output end of the material transfer vertical cylinder 40, and a plurality of accordion suction heads 42 connected to an external cylinder are arranged on the material transfer suction cup 41, and the accordion suction heads 42 have a built-in shock absorbing function.
[0027] like Figure 3 and Figure 4As shown, in the present utility model, a high-definition industrial camera 5 is arranged in the first visual inspection mechanism 1, and a 3D reader 6 is arranged in the second visual inspection mechanism 2. The first visual inspection mechanism 1 and the second visual inspection mechanism 2 have the same structure, and both include a material shifting module and a camera detection system. The material shifting module includes a material shifting bracket 7, a material shifting cylinder 8 arranged on the top of the material shifting bracket 7, a material shifting track 10 arranged parallel to the material shifting cylinder 8 through a track bracket 9, and a material shifting tool. The material shifting cylinder 8 drives the material shifting tool to slide on the material shifting track 10. The camera detection system includes a first camera module 11 and a second camera module 12 respectively arranged on the outside of the material shifting bracket 7 and the track bracket 9, and a third camera module 13 and a fourth camera module 14 respectively arranged below and above the material shifting tool. The material shifting tool is designed with high-transmittance materials. The material transfer tooling includes a first connection block 15, a second connection block 16 and a placement plate 17. The placement plate 17 is connected between the first connection block 15 and the second connection block 16, and is slidably connected to the material transfer cylinder 8 and the material transfer track 10 through the first connection block 15 and the second connection block 16, respectively. The placement plate 17 is designed with a high-transmittance material, and a rotating module 18 is also provided below the initial position of the placement plate 17. In this embodiment, the placement plate 17 is designed with a square high-transmittance glass / high-transmittance acrylic plate, and a plurality of positioning blocks are detachably provided on its upper surface, and the placement space formed by the positioning blocks is consistent with the positioning space formed by the positioning strip 36; connection holes are provided in the positions near the four sides of the placement plate 17, and connection columns adapted to the connection holes are provided on the first connection block 15 and the second connection block 16. Through the assembly between the connection holes and the connection columns, the placement plate 17 can be stably placed on the first connection block 15 and the second connection block 16.
[0028] like Figure 5As shown, in the utility model, the rotating module 18 includes a rotating bracket 19, a vertical cylinder 20 arranged on the top of the rotating bracket 19, and a rotating cylinder 21 connected to the output end of the vertical cylinder 20, and an inflatable shaft 22 is also arranged on the rotating axis of the rotating cylinder 21, and a rotating interface 23 adapted to the inflatable shaft 22 is arranged on the placement plate 17. Through the cooperation between the inflatable shaft 22 and the rotating interface 23, the placement plate 17 is controlled to rotate 90° under the drive of the rotating cylinder 21 to complete the shooting and collection of image information on the four sides of the material. The specific process is: after completing the collection of image information on any two sides of the material, the material transfer cylinder 8 controls the placement plate 17 to return to the initial position. At this time, the vertical cylinder 20 controls the inflatable shaft 22 to move upward and insert into the rotating interface 23. The inflatable shaft 22 is inflated and squeezes the rotating interface 23, so that the placement plate 17 rises and separates from the first connecting block 15 and the second connecting block 16, and then rotates 90° under the drive of the rotating cylinder 21. The vertical cylinder 20 controls the placement plate 17 to move downward and reconnect with the first connecting block 15 and the second connecting block 16, and finally moves to the shooting position under the drive of the material transfer cylinder 8 to complete the shooting and collection of the drawing / stereoscopic image information on the other two sides of the material.
[0029] like Figure 6 , Figure 7 and Figure 8As shown, the first camera module 11 and the second camera module 12 have the same structure, and both include a camera bracket 24, a horizontal cylinder 25 arranged on the top of the camera bracket 24, a second vertical cylinder 27 slidingly matched with the horizontal cylinder 25 through a first slider 26, and a second slider 28 slidingly matched with the second vertical cylinder 27, wherein the horizontal cylinder 25 and the material transfer cylinder 8 are arranged perpendicular to each other. The third camera module 13 includes a second horizontal cylinder 29 and a vertical bracket 30 slidingly matched with the second horizontal cylinder 29, wherein the second horizontal cylinder 29 and the material transfer cylinder 8 are perpendicular to each other and are located between the material transfer cylinder 8 and the material transfer track 10, and the fourth camera module 14 includes a camera gantry 31, a third horizontal cylinder 32 arranged on the camera gantry 31, and a second vertical bracket 33 slidingly matched with the third horizontal cylinder 32, wherein the third horizontal cylinder 32 and the material transfer cylinder 8 are perpendicular to each other and are located between the material transfer cylinder 8 and the material transfer track 10. In the first visual inspection mechanism 1, the high-definition industrial camera 5 is arranged on the corresponding second slider 28, the vertical bracket 30 and the second vertical bracket 33, and the annular light source 34 is at the front end of the high-definition industrial camera 5. In the second visual inspection mechanism 2, the 3D reader 6 is arranged on the corresponding second slider 28, the vertical bracket 30 and the second vertical bracket 33. In the utility model, the first camera module 11, the second camera module 12 and the fourth camera module 14 are used to perform 2D / 3D inspection on the side and top of the material, and the third camera module 13 is used to perform the following 2D / 3D inspection on the material, and the inspection contents include but are not limited to: skewed connector pins, missing connector pins, connector pin height exceeding the specification, missing screws, scratched shells, local differences in surface color, overall differences in surface color, damaged connector shells, damaged screws, assembly gap exceeding the specification, wrong material color, local features, assembly position exceeding the specification, QR code / barcode reading, character recognition, logo recognition, scratched shells, local differences in surface color, overall differences in surface color, damaged connector shells, connector pin height exceeding the specification, screw floating height, assembly gap exceeding the specification, assembly position exceeding the specification, etc. The high-definition industrial camera 5 and the 3D reader 6 used in the utility model are both small-angle shooting devices, which helps to improve the accuracy of shooting. The high-definition industrial camera 5 and the 3D reader 6 are controlled by the driving cylinders at the corresponding positions to move in the shooting direction, and the outer surface of the material is divided into several sections for shooting, thereby improving the accuracy of detection.
[0030] like Fig. 9As shown, in the present utility model, the positioning module 3 includes a positioning bracket 341, a positioning plate 35 is connected to the top of the positioning bracket 341, a positioning bar 36 is detachably mounted on the positioning plate 35, the number and setting position of the positioning bar 36 can be adjusted according to actual conditions, and a positioning cylinder 37 is also arranged on the positioning plate 35, and the position of the positioning cylinder 37 corresponds to the positioning bar 36. Before collecting image information of the material, the material is placed on the positioning plate 35, and the positioning cylinder 37 is started and pushes the material to the positioning bar 36 for positioning, so as to ensure that the material can capture the front image information of six planes when the first visual detection mechanism 1 and the second visual detection mechanism 2 are shooting, thereby improving the detection effect and accuracy.
[0031] The utility model uses the first visual inspection mechanism 1 and the second visual inspection mechanism 2 to shoot and collect two-dimensional and three-dimensional image information of six planes of the material, and sends the collected information to the AOI inspection system inside the main controller to perform image information recognition and comparison to determine whether the material appearance is qualified. The comparison process is optimized by using 2D and 3D image data to improve the accuracy and effect of appearance inspection. Before the material enters the first visual inspection mechanism 1, the placement position of the material is first corrected by the positioning module 3, so that the image information of the front view angle of each plane can be collected during the subsequent shooting process; the four planes of the left, right, top and bottom of the material are photographed by the first, second, third and fourth camera modules. After completion, the material transfer tooling drives the material back to the initial position, and the material is rotated 90° by the rotating module 18, and the material is sent out again. The front and back planes of the material are photographed by the first and second camera modules to complete the collection of plane image information of the six sides of the material, and the information is sent to the AOI inspection system for processing; thereafter, the material is transferred to the second visual inspection mechanism 2 by the material transfer mechanism 6, and the above process is repeated to shoot and collect the 3D image information of the six sides of the material, and the stereoscopic image information of the material is sent to the AOI inspection system to complete the appearance inspection process.
[0032] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A six-side material testing device, characterized in that: It comprises a main controller, a first visual detection mechanism (1) and a second visual detection mechanism (2), wherein an AOI detection system is arranged in the main controller, the first visual detection mechanism (1) and the second visual detection mechanism (2) are respectively used to capture the plane image information and the three-dimensional image information of the material, and send them to the AOI detection system for identification and comparison, a positioning module (3) is arranged at the front end of the first visual detection mechanism (1), and a material transfer mechanism (4) is also arranged between the first visual detection mechanism (1) and the second visual detection mechanism (2).
2. A six-side material testing device according to claim 1, characterized in that: The first visual inspection mechanism (1) is provided with a high-definition industrial camera (5), and the second visual inspection mechanism (2) is provided with a 3D reader (6). The first visual inspection mechanism (1) and the second visual inspection mechanism (2) have the same structure and both include a material transfer module and a camera detection system. The material transfer module includes a material transfer bracket (7), a material transfer cylinder (8) arranged on the top of the material transfer bracket (7), a material transfer track (10) arranged parallel to the material transfer cylinder (8) through a track bracket (9), and a material transfer tool. The material transfer cylinder (8) drives the material transfer tool to slide on the material transfer track (10).
3. A six-side material testing device according to claim 2, characterized in that: The camera detection system comprises a first camera module (11) and a second camera module (12) respectively arranged on the outside of the material transfer bracket (7) and the track bracket (9), and a third camera module (13) and a fourth camera module (14) respectively arranged below and above the material transfer tooling, wherein the material transfer tooling is designed with high-transmittance materials.
4. A six-side material testing device according to claim 3, characterized in that: The material transfer tooling comprises a first connecting block (15), a second connecting block (16) and a placement plate (17); the placement plate (17) is connected between the first connecting block (15) and the second connecting block (16), and is slidably connected to the material transfer cylinder (8) and the material transfer track (10) through the first connecting block (15) and the second connecting block (16), respectively; the placement plate (17) is designed with a high-transmittance material, and a rotating module (18) is also arranged below the initial position of the placement plate (17).
5. A six-side material testing device according to claim 4, characterized in that: The rotating module (18) comprises a rotating bracket (19), a vertical cylinder (20) arranged on the top of the rotating bracket (19), and a rotating cylinder (21) connected to the output end of the vertical cylinder (20); an air shaft (22) is also arranged on the rotating shaft of the rotating cylinder (21); and a rotating interface (23) adapted to the air shaft (22) is arranged on the placement plate (17).
6. A six-side material testing device according to claim 5, characterized in that: The first camera module (11) and the second camera module (12) have the same structure, and both include a camera bracket (24), a horizontal cylinder (25) arranged on the top of the camera bracket (24), a second vertical cylinder (27) slidingly matched with the horizontal cylinder (25) through a first slider (26), and a second slider (28) slidingly matched with the second vertical cylinder (27), and the horizontal cylinder (25) and the material transfer cylinder (8) are arranged perpendicular to each other.
7. A six-side material testing device according to claim 6, characterized in that: The third camera module (13) includes a second horizontal cylinder (29) and a vertical bracket (30) slidably matched with the second horizontal cylinder (29); the second horizontal cylinder (29) and the material transfer cylinder (8) are perpendicular to each other and are located between the material transfer cylinder (8) and the material transfer track (10); the fourth camera module (14) includes a camera gantry (31), a third horizontal cylinder (32) arranged on the camera gantry (31) and a second vertical bracket (33) slidably matched with the third horizontal cylinder (32); the third horizontal cylinder (32) and the material transfer cylinder (8) are perpendicular to each other and are located between the material transfer cylinder (8) and the material transfer track (10).
8. A six-side material testing device according to claim 7, characterized in that: In the first visual inspection mechanism (1), the high-definition industrial camera (5) is arranged on the corresponding second slider (28), the vertical bracket (30) and the second vertical bracket (33), and the annular light source (34) is arranged at the front end of the high-definition industrial camera (5); in the second visual inspection mechanism (2), the 3D reader (6) is arranged on the corresponding second slider (28), the vertical bracket (30) and the second vertical bracket (33).
9. A six-side material testing device according to claim 8, characterized in that: The positioning module (3) comprises a positioning bracket (341), a positioning plate (35) is connected to the top of the positioning bracket (341), a positioning strip (36) is detachably mounted on the positioning plate (35), the number and setting position of the positioning strip (36) can be adjusted according to actual conditions, and a positioning cylinder (37) is also arranged on the positioning plate (35), and the position of the positioning cylinder (37) corresponds to the positioning strip (36).
10. A six-side material testing device according to claim 9, characterized in that: The material transfer mechanism (4) includes a transfer bracket (38) spanning above the first visual inspection mechanism (1) and the second visual inspection mechanism (2), a transfer cylinder (39) arranged on the top of the transfer bracket (38), a material transfer vertical cylinder (40) slidably matched with the material transfer cylinder (39), and a material transfer suction cup (41) connected to the output end of the material transfer vertical cylinder (40), and the material transfer suction cup (41) is provided with a plurality of accordion suction heads (42) connected to an external cylinder.