SMT equipment remote integrated control system
By constructing a remote integrated control system for SMT equipment and utilizing AOI inspection equipment and re-inspection machines for automated inspection, the problem of low inspection accuracy in existing technologies has been solved, and efficient automated production management has been achieved.
Patent Information
- Application Number
- CN202520171712.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing SMT equipment has low accuracy in detecting product defects, relies on manual judgment and is inefficient, and cannot effectively improve factory production efficiency.
A remote integrated control system for SMT equipment is constructed, including AOI inspection equipment, re-inspection machine, AOI re-judgment equipment, and re-judgment center server. The AOI inspection equipment is used for preliminary inspection, the re-inspection machine works with the AOI re-judgment equipment to perform re-inspection, and the data is aggregated to the re-judgment center server to achieve automated inspection and data statistics.
It reduced the false positive rate, improved the detection accuracy, achieved automated production management, and increased production efficiency.
Smart Images
Figure CN223664938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of STM equipment technology, and in particular to a remote integrated control system for SMT equipment. Background Technology
[0002] In modern manufacturing, especially in the SMT (Surface Mount Technology) industry, the transformation towards intelligent manufacturing is changing the production model that previously relied on a large workforce. Companies are reducing costs and increasing efficiency. As equipment becomes increasingly automated, fewer people will be needed, while ensuring reasonable work scheduling, full utilization of time, and maximizing production efficiency.
[0003] However, even with advanced production equipment, the monitoring process cannot be eliminated, so product inspection requires a significant amount of personnel and time. Even with increased first-pass yields, having one person constantly moving between production lines still cannot improve the factory's efficiency in producing high-quality products.
[0004] Currently, AOI inspection equipment is used for inspection, but the false judgment rate is high, and re-inspection still requires manpower and time, which is not conducive to production. Utility Model Content
[0005] Based on this, the present invention provides a remote integrated control system for SMT equipment to improve the accuracy of automatic detection of product defects.
[0006] A remote integrated control system for SMT equipment, comprising:
[0007] AOI (Automated Optical Inspection) equipment is used to inspect items.
[0008] A re-inspection machine is used to acquire images of items to be tested in real time.
[0009] AOI re-inspection equipment, connected to the re-inspection machine;
[0010] The review center server is connected to the review machine and AOI review equipment.
[0011] In one embodiment, the system further includes a HUB switch, through which the re-inspection machine, AOI re-judgment equipment and re-judgment center server are interconnected.
[0012] In one embodiment, the re-inspection machine includes a camera and a robotic arm, the robotic arm being used to move the camera toward the item to be inspected so that the camera can capture an image of the item.
[0013] In one embodiment, the re-inspection machine further includes an infrared transmitter and an infrared receiver for enabling automatic focusing of the camera.
[0014] In one embodiment, the AOI review device, the review machine, and the review center server all include a display screen.
[0015] In one embodiment, the AOI re-judgment device is an AOI re-judgment device configured as a VNC server, the re-inspection machine is a re-inspection machine configured as a VNC server, and the re-judgment center server is configured as a re-judgment center server for the VNC client.
[0016] In one embodiment, multiple AOI re-judgment devices and re-inspection machines are provided, and each AOI re-judgment device and re-inspection machine is connected in a one-to-one correspondence, with each AOI re-judgment device and re-inspection machine connected to the re-judgment center server.
[0017] In one embodiment, the re-inspection machine also includes a barcode scanning device.
[0018] This utility model discloses a remote integrated control system for SMT equipment. It establishes an integrated control system comprising AOI inspection equipment, a re-inspection machine, an AOI re-judgment machine, and a re-judgment center server. The AOI inspection equipment performs initial defect detection, and then the re-inspection machine, in conjunction with the AOI re-judgment machine, re-inspects the results from the AOI inspection equipment, thereby effectively reducing the false alarm rate and improving the detection accuracy. Finally, the re-inspection results are aggregated to the re-judgment center server for data statistics and monitoring. Attached Figure Description
[0019] Figure 1 This is a block diagram of the remote integrated control system for SMT equipment. Detailed Implementation
[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0021] One embodiment of this application provides a control system for SMT (Surface Mount Technology) equipment. SMT equipment is an automated device used in electronics manufacturing, primarily for directly mounting electronic components (such as resistors, capacitors, and integrated circuits) onto the surface of a printed circuit board (PCB). SMT technology is one of the core technologies in modern electronics manufacturing and is widely used in consumer electronics, communication equipment, automotive electronics, medical devices, and other fields. However, existing SMT equipment has low accuracy in detecting product defects, still relying on manual judgment, resulting in low efficiency.
[0022] like Figure 1 As shown, the SMT equipment remote integrated control system includes: AOI inspection equipment for inspecting items to be tested; a re-inspection machine for acquiring images of items to be tested in real time; AOI re-judgment equipment connected to the re-inspection machine for receiving images of items to be tested and re-judging them; and a re-judgment center server connected to the re-inspection machine and the AOI re-judgment equipment.
[0023] AOI (Automated Optical Inspection) equipment automatically scans the item to be tested, i.e. PCBA products, using a high-definition CCD camera and acquires images. The test points are compared with qualified parameters in the database. After image processing, defects on the target product are detected, and the final inspection results are obtained.
[0024] The re-inspection machine includes a camera and a robotic arm. The robotic arm moves the camera toward the item to be inspected, allowing the camera to capture an image of the item. Furthermore, the re-inspection machine can communicate with AOI (Automated Optical Inspection) equipment, using the robotic arm to move the camera to the location of the item where the AOI equipment has reported an error, thus acquiring a comprehensive image.
[0025] In other embodiments, the re-inspection machine also includes an infrared emitter and an infrared receiver for achieving automatic focusing of the camera. The focusing principle is that at the moment the camera captures a shot, the infrared emitter on the camera emits a beam of infrared light of a fixed wavelength towards the object being tested, scanning the scene from left to right; simultaneously, the lens is mechanically propelled from the closest focusing point to infinity. The infrared light reflects back after reaching the subject and is received by the infrared receiver on the camera. The received signal is input into a microcomputer, which analyzes the image value and phase difference of the reflected infrared wave and compares it with pre-input data to determine the actual distance to the subject. Simultaneously with the object distance determined, the microcomputer outputs a command to stop the lens movement, completing the focusing process.
[0026] In other embodiments, the re-inspection machine may also include a mechanical gripper mounted on a robotic arm to grasp the item to be tested and to facilitate observation by the operator using a microscope.
[0027] In other embodiments, the re-inspection machine can also be mounted on a conveyor belt that transports the items to be tested, and can be electrically connected to the control motor of the conveyor belt to control the start and stop of the conveyor belt in order to acquire higher quality images of the items to be tested.
[0028] In other embodiments, the re-inspection machine also includes a barcode scanner. The item to be tested typically has a QR code indicating its product model, ID, and other information. The barcode scanner, along with a robotic arm and camera, moves to the item to be tested. While the camera captures an image, the barcode scanner scans the QR code to obtain the information of the item to be tested, which facilitates continuous tracking and management of the item.
[0029] AOI re-inspection equipment uses AI technology, such as deep learning, to analyze the images collected by the re-inspection machine, identify defects or anomalies on the surface of the item to be tested, and thus complete the re-inspection of the AOI inspection results, greatly improving production capacity and reducing the chance of misjudgment.
[0030] The re-inspection center server is connected to the re-inspection machine and AOI re-inspection equipment, receiving image data collected by the re-inspection machine and re-inspection results obtained by the AOI re-inspection equipment, and statistically analyzing the data for subsequent defect analysis.
[0031] In one embodiment, multiple AOI re-judgment devices and re-inspection machines are provided, and each AOI re-judgment device and re-inspection machine is connected in a one-to-one correspondence, with each AOI re-judgment device and re-inspection machine connected to the re-judgment center server. For example... Figure 1 As shown, the items to be tested on different production lines may be different. Therefore, each production line is equipped with a corresponding set of AOI re-inspection equipment and a re-inspection machine, with each set working in a one-to-one manner. More than one set of AOI re-inspection equipment and a re-inspection machine can also be configured on the same production line to reduce the re-inspection workload. Each set of AOI re-inspection equipment and a re-inspection machine is connected to the re-inspection center server. Therefore, the re-inspection center server can obtain the re-inspection results of the items to be tested from each production line, facilitating data statistics and analysis.
[0032] In one embodiment, the system further includes a HUB switch, through which the re-inspection machine, AOI re-judgment equipment and re-judgment center server are interconnected.
[0033] like Figure 1 As shown, the review center server is connected to each review machine and each AOI review device through a HUB switch, and each review machine is connected to the corresponding AOI review device through a HUB switch, forming a local area network for convenient normal communication.
[0034] In one embodiment, the AOI review device, the review machine, and the review center server all include a display screen.
[0035] The re-inspection machine displays images of the items to be tested on a monitor, the AOI re-judgment equipment displays the re-inspection results of the items on a monitor, and the re-judgment center server displays images collected by each re-inspection machine and re-inspection results obtained by each AOI re-judgment equipment on a monitor. This visual display facilitates monitoring and management of each stage, enabling efficient and reliable automated production management.
[0036] In one embodiment, the AOI re-judgment device is an AOI re-judgment device configured as a VNC server, the re-inspection machine is a re-inspection machine configured as a VNC server, and the re-judgment center server is configured as a re-judgment center server for the VNC client.
[0037] In this embodiment, as Figure 1 As shown, a system framework including a VNC (Virtual Network Console) server and a VNC client was constructed. In this framework, the AOI review and inspection device and the review and inspection machine with the server application installed act as the VNC server, and the review and inspection center server with the client service program installed acts as the VNC client. Based on the communication environment provided by the HUB switch, the review and inspection center server realizes remote access and control of the AOI review and inspection device and the review and inspection machine.
[0038] Traditional remote control solutions for STM equipment only allow software-level connections and cannot simultaneously control the corresponding production line equipment. Therefore, during re-inspection, the inability to simultaneously control both the re-inspection machine and the AOI re-inspection equipment still results in a high false positive rate. Furthermore, some solutions only allow single-unit remote connections, meaning they cannot simultaneously connect the re-inspection software and the re-inspection equipment. Additionally, the traditional TCP / IP communication method is prone to packet loss, causing the re-inspection center software to miss the remote connection signal. Finally, newly added equipment needs to adapt to fixed communication protocols and transmission content, and different manufacturers may require the involvement of third parties.
[0039] Therefore, this embodiment uses VNC technology to achieve remote control. In a remote verification environment, VNC can provide advantages such as flexibility, convenience, multi-user support, multi-screen support, security, and resource sharing, making remote access and control more efficient, convenient, and secure.
[0040] 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.
[0041] The embodiments described above are merely illustrative of several implementations 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.
[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
Claims
1. A remote integrated control system for SMT equipment, characterized in that, include: AOI (Automated Optical Inspection) equipment is used to inspect items. The re-inspection machine is used to acquire images of the items to be tested in real time; AOI re-inspection equipment is connected to the re-inspection machine; The review center server is connected to the review machine and the AOI review equipment.
2. The SMT equipment remote integrated control system according to claim 1, characterized in that: The system also includes a HUB switch, through which the re-inspection machine, the AOI re-judgment device and the re-judgment center server are interconnected.
3. The remote integrated control system for SMT equipment according to claim 1, characterized in that: The re-inspection machine includes a camera and a robotic arm. The robotic arm is used to move the camera toward the item to be tested so that the camera can capture an image of the item to be tested.
4. The SMT equipment remote integrated control system according to claim 3, characterized in that: The re-inspection machine also includes an infrared transmitter and an infrared receiver for enabling the camera to autofocus.
5. The remote integrated control system for SMT equipment according to claim 1, characterized in that: The AOI re-judgment device, the re-inspection machine, and the re-judgment center server all include a display screen.
6. The remote integrated control system for SMT equipment according to claim 1, characterized in that: The AOI re-judgment device is the AOI re-judgment device configured as a VNC server, the re-inspection machine is the re-inspection machine configured as a VNC server, and the re-judgment center server is the re-judgment center server configured as a VNC client.
7. The remote integrated control system for SMT equipment according to claim 1, characterized in that: Multiple AOI re-judgment devices and re-inspection machines are provided, and each AOI re-judgment device and re-inspection machine is connected in a one-to-one correspondence. Each AOI re-judgment device and re-inspection machine is connected to the re-judgment center server.
8. The remote integrated control system for SMT equipment according to claim 1, characterized in that: The re-inspection machine also includes a barcode scanning device.