An IGBT sheet metal part surface defect detection device based on visual detection

Abstract

The utility model belongs to sheet metal surface defect detection technical field especially based on visual inspection's IGBT sheet metal surface defect detection equipment, including the workpiece that will detect is placed on workpiece conveying belt top carries out the conveyance, this time can control first electric sliding block moves on first electric sliding rail top, can let the rotating stand moves to workpiece conveying belt top, and control second electric telescopic link drives workpiece clamping block to clamp workpiece, and place workpiece on detection table top, let surface defect detection camera carry out overall shooting collection image information to the outer surface of workpiece, and control first motor drives driving shaft and rotating stand and the workpiece of clamping and carries out the rotation, and surface defect detection camera can shoot workpiece.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal surface defect detection technology, and in particular to a visual inspection-based IGBT sheet metal surface defect detection device. Background Technology

[0002] With the technological upgrading of the entire machining industry, the requirements for inspection and testing of mechanical products are higher. Machine vision is a modern inspection technology that uses industrial camera CCD to replace human eyes for inspection. It processes the image of the object being tested through industrial camera CCD, converts the image information into digital signals, and then extracts the required features from them, thereby realizing the detection of the state of the object being tested.

[0003] Existing inspection equipment can only inspect the outer surface of sheet metal parts, making it difficult to inspect the bottom and interior. This requires manual adjustment by staff, resulting in low efficiency for continuous inspection. Therefore, we propose a vision-based IGBT sheet metal part surface defect inspection device. Utility Model Content

[0004] The purpose of this invention is to provide a visual inspection-based surface defect detection device for IGBT sheet metal parts, which solves the existing problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vision-based inspection device for detecting surface defects in IGBT sheet metal parts, characterized in that it includes a first mounting frame, a workpiece conveyor belt rotatably mounted on the inner side of the first mounting frame, two fixed frames fixedly mounted on the left side of the first mounting frame, a sorting conveyor belt rotatably mounted on the inner side of the fixed frames, an inspection table fixedly mounted on the right side of the first mounting frame, a first electric slide rail fixedly mounted on the top inner wall of the first mounting frame, a first electric slider slidably mounted on the bottom of the first electric slide rail, and a second electric slide rail fixedly mounted on the bottom of the first electric slider.

[0007] As a further improvement to the above solution, a second electric slider is slidably mounted on the bottom of the second electric slide rail, a first electric telescopic rod is fixedly mounted on the bottom of the second electric slider, a second mounting bracket is fixedly mounted on the output end of the first electric telescopic rod, a first motor is fixedly mounted on the bottom of the second mounting bracket, a drive shaft is fixedly mounted on the output end of the first motor, and a rotating frame is fixedly mounted on the bottom of the drive shaft.

[0008] As a further improvement to the above solution, a second electric telescopic rod is fixedly installed on the inner walls of the left and right sides of the rotating frame, a second motor is fixedly installed at the output end of the second electric telescopic rod, and a workpiece clamping block is fixedly installed at the output end of the second motor.

[0009] As a further improvement to the above solution, an auxiliary frame is fixedly installed on one side of the second mounting bracket, and a surface defect detection camera is fixedly installed on one side of the auxiliary frame.

[0010] As a further improvement to the above solution, the surface defect detection camera is electrically connected to an image acquisition and processing module, the image acquisition and processing module is electrically connected to a data storage and management module, and the data storage and management module is electrically connected to a main control module.

[0011] As a further improvement to the above solution, the main control module is electrically connected to the first electric slide rail, the first electric slider, the second electric slide rail, the second electric slider, and the first electric telescopic rod.

[0012] As a further improvement to the above solution, the auxiliary frame is L-shaped, and a battery is fixedly installed on one side of the auxiliary frame. The battery is electrically connected to the surface defect detection camera, the image acquisition and processing module, the data storage and management module, and the main control module.

[0013] As a further improvement to the above solution, an anti-slip rubber pad is provided on one side of the workpiece clamping block. Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) The present invention provides a visual inspection-based IGBT sheet metal surface defect detection device. The workpiece to be inspected is placed above the workpiece conveyor belt for conveying. At this time, the first electric slider can be controlled to move above the first electric slide rail, so that the rotating frame can move to the workpiece conveyor belt. The second electric telescopic rod is controlled to drive the workpiece clamping block to clamp the workpiece and place the workpiece above the inspection table. The surface defect detection camera captures the overall image information of the outer surface of the workpiece. The first motor is controlled to drive the drive shaft, the rotating frame and the clamped workpiece to rotate. The surface defect detection camera can capture images of the workpiece.

[0015] (2) The present invention provides a visual inspection-based IGBT sheet metal surface defect detection device. The image acquisition and processing module preprocesses the image, including noise reduction, grayscale conversion, enhancement and other operations, to improve the image quality. At the same time, the image recognition algorithm is used to analyze the preprocessed image, extract the feature information of the sheet metal surface, and determine whether there is a defect. The data storage and management module can store the data. The main control module can control the second electric slider and the first electric telescopic rod, so that the workpieces can be moved to the corresponding classification conveyor belts, thereby enabling the workpieces to be classified and collected. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a vision-based IGBT sheet metal surface defect detection device proposed in this utility model.

[0018] Figure 2 This is a partial three-dimensional structural diagram of a vision-based IGBT sheet metal surface defect detection device proposed in this utility model.

[0019] Figure 3 This is a partial three-dimensional structural diagram of the second motor and workpiece clamping block proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the frame structure of a vision-based surface defect detection device for IGBT sheet metal parts proposed in this utility model.

[0021] In the diagram: 1. First mounting frame; 2. Workpiece conveyor belt; 3. Fixed frame; 4. Classification conveyor belt; 5. Inspection table; 6. First electric slide rail; 7. First electric slider; 8. Second electric slide rail; 9. Second electric slider; 10. First electric telescopic rod; 11. Second mounting frame; 12. First motor; 13. Drive shaft; 14. Rotating frame; 15. Second electric telescopic rod; 16. Second motor; 17. Workpiece clamping block; 18. Auxiliary frame; 19. Surface defect detection camera; 20. Image acquisition and processing module; 21. Data storage and management module; 22. Main control module. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] refer to Figure 1-4 A vision-based surface defect detection device for IGBT sheet metal parts, characterized by comprising a first mounting frame 1, a workpiece conveyor belt 2 rotatably mounted on the inner side of the first mounting frame 1, two fixed frames 3 fixedly mounted on the left side of the first mounting frame 1, a sorting conveyor belt 4 rotatably mounted on the inner side of the fixed frames 3, a detection table 5 fixedly mounted on the right side of the first mounting frame 1, a first electric slide rail 6 fixedly mounted on the top inner wall of the first mounting frame 1, a first electric slider 7 slidably mounted on the bottom of the first electric slide rail 6, and a second electric slide rail 8 fixedly mounted on the bottom of the first electric slider 7; the workpiece to be inspected is placed above the workpiece conveyor belt 2 for conveying, and the first electric slider 7 can be controlled to move above the first electric slide rail 6, enabling... Move the rotating frame 14 above the workpiece conveyor belt 2, and control the second electric telescopic rod 15 to drive the workpiece clamping block 17 to clamp the workpiece and place the workpiece above the inspection table 5. Let the surface defect detection camera 19 capture image information of the overall outer surface of the workpiece. In a further preferred embodiment of the present invention, a second electric slider 9 is slidably installed at the bottom of the second electric slide rail 8, a first electric telescopic rod 10 is fixedly installed at the bottom of the second electric slider 9, a second mounting frame 11 is fixedly installed at the output end of the first electric telescopic rod 10, a first motor 12 is fixedly installed at the bottom of the second mounting frame 11, a drive shaft 13 is fixedly installed at the output end of the first motor 12, and a rotating frame 14 is fixedly installed at the bottom of the drive shaft 13.

[0024] In a further preferred embodiment of the present invention, a second electric telescopic rod 15 is fixedly installed on the inner walls of the left and right sides of the rotating frame 14, a second motor 16 is fixedly installed at the output end of the second electric telescopic rod 15, and a workpiece clamping block 17 is fixedly installed at the output end of the second motor 16.

[0025] In a further preferred embodiment of this utility model, an auxiliary frame 18 is fixedly installed on one side of the second mounting frame 11, and a surface defect detection camera 19 is fixedly installed on one side of the auxiliary frame 18; the data storage and management module 21 can store data, and the main control module 22 can control the second electric slider 9 and the first electric telescopic rod 10, so that the workpieces can be moved to the corresponding classification conveyor belt 4, thereby enabling the workpieces to be classified and collected.

[0026] In a further preferred embodiment of this utility model, the surface defect detection camera 19 is electrically connected to an image acquisition and processing module 20, the image acquisition and processing module 20 is electrically connected to a data storage and management module 21, and the data storage and management module 21 is electrically connected to a main control module 22. The first motor 12 is controlled to drive the drive shaft 13, the rotating frame 14, and the clamped workpiece to rotate, allowing the surface defect detection camera 19 to capture images of the workpiece. The second motor 16 is then controlled to drive the workpiece clamping block 17 to rotate, allowing the workpiece to rotate and enabling multiple angles of the workpiece to be detected by the surface defect detection camera. The trap detection camera 19 acquires images, and the image acquisition and processing module 20 preprocesses the images, including noise reduction, grayscale conversion, and enhancement, to improve image quality. At the same time, the image recognition algorithm is used to analyze the preprocessed image, extract feature information of the sheet metal surface, and determine whether there are defects. The image recognition algorithm is existing technology, so it is not described in detail in this article. In a further preferred embodiment of this utility model, the main control module 22 is electrically connected to the first electric slide rail 6, the first electric slider 7, the second electric slide rail 8, the second electric slider 9, and the first electric telescopic rod 10.

[0027] In a further preferred embodiment of the present invention, the auxiliary frame 18 is L-shaped, and a storage battery is fixedly installed on one side of the auxiliary frame 18. The storage battery is electrically connected to the surface defect detection camera 19, the image acquisition and processing module 20, the data storage and management module 21, and the main control module 22. In a further preferred embodiment of the present invention, an anti-slip rubber pad is provided on one side of the workpiece clamping block 17.

[0028] The implementation principle of the IGBT sheet metal surface defect detection device based on vision inspection in this embodiment is as follows: The workpiece to be inspected is placed above the workpiece conveyor belt 2 for conveying. At this time, the first electric slider 7 can be controlled to move above the first electric slide rail 6, so that the rotating frame 14 can move above the workpiece conveyor belt 2. The second electric telescopic rod 15 is controlled to drive the workpiece clamping block 17 to clamp the workpiece and place it above the inspection table 5. The surface defect detection camera 19 takes a picture of the outer surface of the workpiece to collect image information. The first motor 12 is controlled to drive the drive shaft 13, the rotating frame 14 and the clamped workpiece to rotate. The surface defect detection camera 19 can take a picture of the workpiece. The second motor 16 is then controlled to drive the second motor to rotate the workpiece. The workpiece clamping block 17 rotates, allowing the workpiece to rotate and enabling the surface defect detection camera 19 to capture images of the workpiece from multiple angles. The image acquisition and processing module 20 preprocesses the images, including noise reduction, grayscale conversion, and enhancement, to improve image quality. Simultaneously, it analyzes the preprocessed images using an image recognition algorithm to extract feature information from the sheet metal surface and determine whether defects exist. The image recognition algorithm is existing technology, so it is not described in detail here. The data storage and management module 21 stores the data. The main control module 22 controls the second electric slider 9 and the first electric telescopic rod 10, enabling the workpieces to move to the corresponding sorting conveyor belt 4 for sorting and collection.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The above provides a detailed description of the IGBT sheet metal surface defect detection device based on vision inspection provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The description of the embodiments above is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A vision-based inspection device for detecting surface defects in IGBT sheet metal parts, characterized in that, include: The first mounting frame (1) has a workpiece conveyor belt (2) rotatably mounted on its inner side. Two fixed frames (3) are fixedly mounted on the left side of the first mounting frame (1). A sorting conveyor belt (4) is rotatably mounted on the inner side of the fixed frames (3). A testing table (5) is fixedly mounted on the right side of the first mounting frame (1). A first electric slide rail (6) is fixedly mounted on the top inner wall of the first mounting frame (1). A first electric slider (7) is slidably mounted on the bottom of the first electric slide rail (6). A second electric slide rail (8) is fixedly mounted on the bottom of the first electric slider (7).

2. The IGBT sheet metal surface defect detection equipment based on vision inspection according to claim 1, characterized in that, The bottom of the second electric slide rail (8) is slidably mounted with a second electric slider (9), the bottom of the second electric slider (9) is fixedly mounted with a first electric telescopic rod (10), the output end of the first electric telescopic rod (10) is fixedly mounted with a second mounting bracket (11), the bottom of the second mounting bracket (11) is fixedly mounted with a first motor (12), the output end of the first motor (12) is fixedly mounted with a drive shaft (13), and the bottom of the drive shaft (13) is fixedly mounted with a rotating bracket (14).

3. The IGBT sheet metal surface defect detection equipment based on vision inspection according to claim 2, characterized in that, The rotating frame (14) has a second electric telescopic rod (15) fixedly installed on the inner walls of its left and right sides. The output end of the second electric telescopic rod (15) is fixedly installed with a second motor (16), and the output end of the second motor (16) is fixedly installed with a workpiece clamping block (17).

4. The IGBT sheet metal surface defect detection equipment based on vision inspection according to claim 2, characterized in that, An auxiliary frame (18) is fixedly installed on one side of the second mounting bracket (11), and a surface defect detection camera (19) is fixedly installed on one side of the auxiliary frame (18).

5. The IGBT sheet metal surface defect detection equipment based on vision inspection according to claim 4, characterized in that, The surface defect detection camera (19) is electrically connected to an image acquisition and processing module (20), the image acquisition and processing module (20) is electrically connected to a data storage and management module (21), and the data storage and management module (21) is electrically connected to a main control module (22).

6. The IGBT sheet metal surface defect detection equipment based on vision inspection according to claim 5, characterized in that, The main control module (22) is electrically connected to the first electric slide rail (6), the first electric slider (7), the second electric slide rail (8), the second electric slider (9), and the first electric telescopic rod (10).

7. The IGBT sheet metal surface defect detection equipment based on vision inspection according to claim 4, characterized in that, The auxiliary frame (18) is L-shaped, and a battery is fixedly installed on one side of the auxiliary frame (18). The battery is electrically connected to the surface defect detection camera (19), the image acquisition and processing module (20), the data storage and management module (21), and the main control module (22).

8. The IGBT sheet metal surface defect detection equipment based on vision inspection according to claim 3, characterized in that, One side of the workpiece clamping block (17) is provided with an anti-slip rubber pad.

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