Appearance detection system

Abstract

The utility model relates to an appearance detection system, and belongs to the technical field of automobile part detection. The appearance detection system is provided for automobile safety belt support metal plate parts, and the system achieves all-around detection of the appearance, hole characteristics and paint surfaces of a product to be detected through an automatic process by utilizing the synergistic effect of a robot transfer gripper, an annular detection line and a visual detection camera technology. Compared with traditional manual visual inspection, the system can effectively avoid missing inspection and misjudgment, improve the detection efficiency, reduce the risk that defective products flow out, and ensure that the product quality meets the high-standard requirement.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, and in particular to an appearance inspection system. Background Technology

[0002] With the development of automobile manufacturing technology, there is a need for strict quality inspection of automobile parts. This technology is characterized by ensuring that each part meets high standards of safety and appearance requirements; which in turn leads to an inspection method for sheet metal parts of automobile seat belt brackets.

[0003] In related technologies, the appearance, hole features, and paint condition of automotive seat belt bracket sheet metal parts are handled through manual visual inspection.

[0004] However, the aforementioned manual visual inspection method is prone to omissions and misjudgments, which not only affects inspection efficiency but also greatly increases the risk of defective products being released. Utility Model Content

[0005] To address the shortcomings of existing production technologies, the applicant provides an appearance inspection system that uses automated equipment for visual image learning, compares the results with actual products, and performs multi-item inspections on the parts to be tested.

[0006] The technical solution adopted by this utility model is as follows: A visual inspection system, comprising:

[0007] The feeding mechanism has an infeed end for receiving the product to be tested and an outfeed end that connects to the robot's transfer gripper.

[0008] A robotic transfer gripper is configured to hold the product to be tested at the discharge end of the feeding mechanism and transfer it to the feeding station;

[0009] The circular inspection line has a loading station located on it. The product to be tested is placed into the fixture at the loading station and passes through the first, second, third, fourth, fifth, sixth, seventh, and eighth inspection stations in sequence along the circular inspection line before finally reaching the unloading station. Each inspection station is used to perform visual photographic inspection on the product to be tested.

[0010] The unloading mechanism is connected to the unloading station and is configured to sort the inspected products to the OK product conveyor line or NG product conveyor line according to the inspection results.

[0011] As a further improvement to the above technical solution:

[0012] Preferably, it also includes a visual guidance mechanism, which is disposed at the junction of the discharge end of the feeding mechanism and the robot transfer gripper, and is used to guide the robot transfer gripper to accurately transfer the product to be tested to the position of the feeding station.

[0013] Preferably, the visual guidance mechanism includes a visual recognition module for acquiring the position information of the product under test in real time and adjusting the gripping path of the robot transfer gripper through feedback control.

[0014] Preferably, the first, second, third, fourth, fifth, sixth, seventh, and eighth inspection stations are configured to inspect the appearance, hole features, and paint finish of the product to be tested.

[0015] Preferably, the unloading mechanism includes two conveyor lines, one of which is configured to transfer qualified products to the OK product conveyor line according to the test results, and the other conveyor line is configured to transfer unqualified products to the NG product conveyor line according to the test results.

[0016] Preferably, the circular inspection line is a closed-loop conveyor structure, with each inspection station evenly distributed along the circumference of the circular inspection line, and each inspection station is equipped with an independent visual inspection camera.

[0017] Preferably, the structure of the robot transfer gripper is configured as a multi-degree-of-freedom robotic arm, and a gripping mechanism is provided at the end for stably gripping the product to be tested.

[0018] Preferably, an outer frame is provided around the periphery of the annular detection line, and the outer frame is used to isolate the external environment from interference with the internal detection.

[0019] The beneficial effects of this utility model are as follows:

[0020] This utility model has a compact structure and is easy to operate. Through the feeding mechanism, robot transfer gripper and unloading mechanism, it realizes the automatic feeding, transfer and sorting of products to be tested, thereby improving the testing efficiency. At the same time, the automated testing reduces missed detections and misjudgments caused by human factors, effectively reducing the risk of defective products flowing out.

[0021] This utility model also has the following advantages:

[0022] (1) The circular inspection line of this utility model is equipped with multiple inspection stations, each station is equipped with an independent visual inspection camera to ensure comprehensive inspection of the sheet metal parts of the car seat belt bracket;

[0023] (2) The visual guidance mechanism of this utility model obtains the position information of the product to be tested in real time, adjusts the path of the robot transfer gripper, ensures accurate product positioning, and improves detection accuracy. Attached Figure Description

[0024] Figure 1 This is a three-dimensional view of the overall structure of this utility model.

[0025] Figure 2 for Figure 1 Top view (outer frame hidden).

[0026] The components are: 1. Outer frame; 2. Loading mechanism; 3. Robot transfer gripper; 4. Vision guidance mechanism; 5. Loading station; 6. First inspection station; 7. Second inspection station; 8. Third inspection station; 9. Fourth inspection station; 10. Fifth inspection station; 11. Sixth inspection station; 12. Seventh inspection station; 13. Eighth inspection station; 14. Unloading station; 15. Unloading mechanism; 16. OK product conveyor line; 17. NG product conveyor line. Detailed Implementation

[0027] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0031] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0032] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0033] like Figures 1-2 The accompanying drawing shows a structural diagram of an appearance inspection system according to an embodiment of the present invention; for ease of description, the drawing only shows the structure related to the embodiment of the present invention.

[0034] In this embodiment, an appearance inspection system is provided, including:

[0035] The feeding mechanism 2 has an infeed end for receiving the product to be tested and an outlet end that is connected to the robot transfer gripper 3.

[0036] Robot transfer gripper 3 is configured to hold the product to be tested at the discharge end of the feeding mechanism 2 and transfer it to the feeding station 5;

[0037] The circular inspection line has a loading station 5 located on it. The product to be tested is placed into the fixture at the loading station 5 and passes through the first inspection station 6, the second inspection station 7, the third inspection station 8, the fourth inspection station 9, the fifth inspection station 10, the sixth inspection station 11, the seventh inspection station 12, and the eighth inspection station 13 in sequence along the circular inspection line, and finally arrives at the unloading station 14. Each inspection station is used to perform visual photographic inspection on the product to be tested.

[0038] The unloading mechanism 15 is connected to the unloading station 14 and is configured to sort the inspected products to the OK product conveyor line 16 or NG product conveyor line 17 according to the inspection results.

[0039] In this embodiment, a visual guidance mechanism 4 is also included. The visual guidance mechanism 4 is disposed at the docking point between the discharge end of the feeding mechanism 2 and the robot transfer gripper 3, and is used to guide the robot transfer gripper 3 to accurately transfer the product to be tested to the feeding station 5.

[0040] Furthermore, the visual guidance mechanism 4 includes a visual recognition module, which is used to acquire the position information of the product under test in real time and adjust the gripping path of the robot transfer gripper 3 through feedback control.

[0041] In this embodiment, the first inspection station 6, the second inspection station 7, the third inspection station 8, the fourth inspection station 9, the fifth inspection station 10, the sixth inspection station 11, the seventh inspection station 12 and the eighth inspection station 13 are configured to inspect the appearance, hole features and paint surface of the product to be tested.

[0042] In this embodiment, the unloading mechanism 15 includes two conveyor lines, one of which is configured to transfer qualified products to OK product conveyor line 16 according to the test results, and the other conveyor line is configured to transfer unqualified products to NG product conveyor line 17 according to the test results.

[0043] In this embodiment, the circular inspection line is a closed-loop conveyor structure, with each inspection station evenly distributed along the circumference of the circular inspection line, and each inspection station is equipped with an independent visual inspection camera.

[0044] In this embodiment, the robot transfer gripper 3 is configured as a multi-degree-of-freedom robotic arm, and is equipped with a gripping mechanism at the end for stably gripping the product to be tested.

[0045] In this embodiment, an outer frame 1 is provided around the periphery of the ring detection line. The outer frame 1 is used to isolate the external environment from the interference of the internal detection.

[0046] In practical work, the workflow of this utility model is as follows:

[0047] The product to be tested is placed into the tooling of the loading station 5 from the discharge end of the loading mechanism 2 via the robot transfer gripper 3. It then passes through the first inspection station 6, the second inspection station 7, the third inspection station 8, the fourth inspection station 9, the fifth inspection station 10, the sixth inspection station 11, the seventh inspection station 12 and the eighth inspection station 13 in sequence along the circular inspection line, and finally arrives at the unloading station 14.

[0048] The unloading station 14 is connected to the unloading mechanism 15, which transfers the inspected products to the OK product conveyor line 16 or the NG product conveyor line 17 according to the inspection results.

[0049] This invention features a reasonable structure and simple operation. Utilizing the synergistic effect of a robotic transfer gripper 3, a circular inspection line, and a visual inspection camera, it achieves comprehensive inspection of the appearance, hole features, and paint finish of the product under test. Compared to traditional manual visual inspection, it effectively avoids missed inspections and misjudgments, improves inspection efficiency, reduces the risk of defective products leaving the product, and ensures that product quality meets high standards.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An appearance inspection system, characterized in that, include: The feeding mechanism (2) has an infeed end for receiving the product to be tested and an outlet end for docking with the robot transfer gripper (3). The robot transfer gripper (3) is configured to hold the product to be tested at the discharge end of the feeding mechanism (2) and transfer it to the feeding station (5); The circular inspection line has a loading station (5) set on it. The product to be tested is placed in the tooling of the loading station (5) and passes through the first inspection station (6), the second inspection station (7), the third inspection station (8), the fourth inspection station (9), the fifth inspection station (10), the sixth inspection station (11), the seventh inspection station (12) and the eighth inspection station (13) in sequence along the circular inspection line and finally arrives at the unloading station (14). Each inspection station is used to perform visual photographic inspection on the product to be tested. The unloading mechanism (15) is connected to the unloading station (14) and is configured to sort the inspected products to the OK product conveyor line (16) or NG product conveyor line (17) according to the inspection results.

2. The appearance inspection system according to claim 1, characterized in that, It also includes a visual guidance mechanism (4), which is located at the junction of the discharge end of the feeding mechanism (2) and the robot transfer gripper (3) to guide the robot transfer gripper (3) to accurately transfer the product to be tested to the feeding station (5).

3. The appearance inspection system according to claim 2, characterized in that, The visual guidance mechanism (4) includes a visual recognition module, which is used to acquire the position information of the product to be tested in real time and adjust the gripping path of the robot transfer gripper (3) through feedback control.

4. The appearance inspection system according to claim 1, characterized in that, The first inspection station (6), the second inspection station (7), the third inspection station (8), the fourth inspection station (9), the fifth inspection station (10), the sixth inspection station (11), the seventh inspection station (12) and the eighth inspection station (13) are configured to inspect the appearance, hole features and paint surface of the product to be tested.

5. The appearance inspection system according to claim 1, characterized in that, The feeding mechanism (15) includes two conveyor lines, one of which is configured to transfer qualified products to the OK product conveyor line (16) according to the test results, and the other conveyor line is configured to transfer unqualified products to the NG product conveyor line (17) according to the test results.

6. The appearance inspection system according to claim 1, characterized in that, The circular inspection line is a closed-loop conveyor structure, with each inspection station evenly distributed along the circumference of the circular inspection line, and each inspection station is equipped with an independent visual inspection camera.

7. The appearance inspection system according to claim 1, characterized in that, The structure of the robot transfer gripper (3) is set as a multi-degree-of-freedom robotic arm, and a gripping mechanism is configured at the end for stably gripping the product to be tested.

8. The appearance inspection system according to claim 1, characterized in that, An outer frame (1) is provided around the periphery of the annular detection line. The outer frame (1) is used to isolate the external environment from interference with the internal detection.

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