A0i detection device with electromagnetic interference prevention function

By employing a double-layer metal shield and an openable shield in the AOI inspection equipment, combined with a lifting mechanism and support feet, the problem of image quality degradation caused by electromagnetic interference was solved, achieving stable inspection and efficient production.

CN224500413UActive Publication Date: 2026-07-14SUZHOU FUYINGTAI INTELLIGENT MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU FUYINGTAI INTELLIGENT MASCH CO LTD
Filing Date
2025-04-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

AOI inspection equipment is susceptible to electromagnetic interference during high-precision inspection, which can lead to decreased image quality and inspection errors, affecting yield and production efficiency.

Method used

An AOI inspection device with electromagnetic interference protection function was designed. It adopts a double-layer metal shield and an openable shield, combined with a lifting mechanism and support feet to achieve all-round protection of the scanner. The grounding pad disperses static charge and reduces the impact of electromagnetic interference.

Benefits of technology

It effectively shields against external electromagnetic interference, improves the sealing and stability of the testing equipment, ensures image quality, and enhances testing accuracy and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an AOI inspection device with anti-electromagnetic interference function, relating to the technical field of inspection equipment. It includes: a frame; a surrounding panel fixedly installed on the top of the frame, with a scanner suspended above and inside the panel, the scanner being used to inspect products below; a moving component installed below the frame, the moving component being used to move on the ground; a lifting mechanism installed below the frame, the lifting mechanism being used to raise and lower the moving component; an opening and closing shielding cover installed above the surrounding panel, and an opening and closing mechanism installed on the rear side of the surrounding panel, the opening and closing mechanism being used to open and close the shielding cover vertically; and a storage tray slidably inserted into one side of the surrounding panel. Through the surrounding panel and shielding cover, the scanner of the AOI inspection device can be fully covered and protected, avoiding external electromagnetic interference. Simultaneously, the opening and closing design of the shielding cover facilitates the entry and exit of products on the storage tray, improving the sealing performance of the inspection device.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to an A0I testing device with anti-electromagnetic interference function. Background Technology

[0002] When using AOI (Automated Optical Inspection) equipment, factors such as the optical imaging module and image processing system can cause image quality degradation or inspection errors. These factors include motors, frequency converters, and wireless devices in the production workshop. Electromagnetic noise generated by these devices can affect the AOI equipment through conduction or radiation. Especially in high-precision inspection, which requires a stable environment, any interference can lead to misjudgments, impacting yield and production efficiency.

[0003] High-frequency electromagnetic pulses may be mistaken for valid signals by the CMOS sensor of the AOI camera, leading to artifacts in the image (such as snowflakes or stripe noise). Power supply fluctuations: Sudden current changes during the start-up and shutdown of high-power equipment (such as pick-and-place machines) are conducted to the AOI through the shared power supply, causing instantaneous voltage fluctuations in the image processor (FPGA / GPU) (which may cause system crashes if they exceed ±5% of the rated value). To address these issues, we propose an AOI inspection device with electromagnetic interference protection. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an AOI detection device with anti-electromagnetic interference function, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an A0I detection device with anti-electromagnetic interference function, comprising: a frame: a surrounding plate is fixedly installed on the top of the frame, and a scanner is suspended above the inside of the surrounding plate, the scanner being used at least to detect the products below;

[0006] A movable component is provided below the frame, the movable component being used at least for movement on the ground;

[0007] A lifting mechanism is provided below the frame, and the lifting mechanism is used for lifting at least the moving components;

[0008] An opening and closing shielding cover is provided above the enclosure, and an opening and closing mechanism is provided on the rear side of the enclosure. The opening and closing mechanism is used at least for opening and closing the shielding cover vertically.

[0009] A storage tray is slidably inserted into one side of the enclosure, and the scanner is located above the storage tray.

[0010] Preferably, each of the frame's bottom ends is fixedly equipped with a support foot, the support foot including a shock-absorbing column fixed to the outer wall of the bottom of the frame, and the bottom of the shock-absorbing column is provided with a grounding pad.

[0011] Preferably, the rear side of the enclosure is higher than the front side, and the side view shape of the enclosure is a right trapezoidal structure.

[0012] Preferably, the movable component includes a wheel frame, with movable wheels disposed below the wheel frame, and support legs fixedly connected to the top outer wall of the wheel frame.

[0013] Preferably, the lifting mechanism includes an ear plate fixed to the inner wall of the frame, and a guide rod is fixedly installed on the top outer wall of the ear plate, and one end of the support leg is slidably sleeved on the outside of the guide rod;

[0014] A connecting frame is fixedly installed on the outside of the adjacent support legs. A horizontally distributed crossbeam is fixedly installed inside the frame. A lifting plate is provided below the crossbeam. A rotating seat is provided at the top center of the lifting plate. Both ends of the lifting plate are fixed to the connecting frame. A screw is rotatably inserted into the inside of the rotating seat. The upper part of the screw is threadedly connected to the threaded hole of the crossbeam. A turntable is fixedly connected to the top of the screw.

[0015] Preferably, the shielding cover is a double-layer metal shielding cover, composed of an aluminum-magnesium alloy and a conductive rubber lining.

[0016] Preferably, the opening and closing mechanism includes a hinge seat fixed to the side wall of the enclosure, a power telescopic rod rotatably connected above the hinge seat, a rotating joint provided at the top of the power telescopic rod, a connecting arm fixedly installed on the back of the shield, the connecting arm being connected to the rotating joint, and mounting grooves provided on both sides of the top of the enclosure, with rotating hinges connected to the shield inside the mounting grooves.

[0017] This utility model provides an A0I detection device with anti-electromagnetic interference function, which has the following beneficial effects:

[0018] 1. The enclosure and shielding cover can provide all-round coverage and protection for the scanner of the AOI inspection equipment, avoiding external electromagnetic interference. At the same time, the shielding cover is designed to open and close, which facilitates the entry and exit of products on the tray and improves the sealing of the inspection equipment.

[0019] 2. The support feet used not only have a shock absorption effect, but the grounding pads used are also 5mm thick with a surface resistance of <0.1Ω / m², which can effectively disperse static charge in the equipment;

[0020] 3. The lifting mechanism can drive the moving component to move up and down, allowing the moving component to contact and separate from the ground. When the equipment is used in a fixed location, the support legs are stably placed on the ground. When the equipment needs to be moved, the lifting mechanism drives the moving component to descend, enabling the equipment to be moved and repositioned flexibly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an A0I detection device with anti-electromagnetic interference function according to this utility model;

[0022] Figure 2 This is a schematic diagram of the lifting mechanism structure of an A0I detection device with anti-electromagnetic interference function according to this utility model;

[0023] Figure 3 This is a schematic diagram of the shielding cover of an A0I detection device with anti-electromagnetic interference function in the open state according to this utility model.

[0024] Figure 4 This is a schematic diagram of the opening and closing mechanism of an A0I detection device with anti-electromagnetic interference function according to the present invention.

[0025] 1. Frame; 2. Enclosure; 3. Support legs; 31. Shock-absorbing column; 32. Grounding pad; 4. Moving assembly; 41. Wheel frame; 42. Casters; 43. Support leg; 5. Lifting mechanism; 51. Ear plate; 52. Guide rod; 53. Connecting frame; 54. Crossbeam; 55. Lifting plate; 56. Rotating seat; 57. Screw; 58. Turntable; 6. Shielding cover; 7. Opening and closing mechanism; 71. Hinge seat; 72. Power telescopic rod; 73. Rotating joint; 74. Connecting arm; 75. Rotating hinge; 8. Storage tray; 9. Scanner. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] like Figures 1-4 As shown, this utility model provides a technical solution: an AIO testing device with anti-electromagnetic interference function, comprising: a frame 1; a surrounding plate 2 is fixedly installed on the top of the frame 1, and a scanner 9 is suspended above the interior of the surrounding plate 2, the scanner 9 being used at least to test the products below; a moving component 4 is installed below the frame 1, the moving component 4 being used at least to move flexibly on the ground; a lifting mechanism 5 is installed below the frame 1, the lifting mechanism 5 being used at least to lift the moving component 4; an opening and closing shield 6 is installed above the surrounding plate 2, and an opening and closing mechanism 7 is installed on the rear side of the surrounding plate 2, the opening and closing mechanism 7 being used at least to open and close the shield 6 vertically.

[0028] In this embodiment, it includes: a frame 1, which is welded from square steel; a surrounding plate 2 is fixedly installed on the top of the frame 1, and the top view of the surrounding plate 2 is C-shaped.

[0029] Specifically, the rear side of the enclosure 2 is higher than the front side, and the side view of the enclosure 2 is a right-angled trapezoidal structure, which can form a side protection structure and together with the shielding cover 6 form an outer shell to resist electromagnetic interference.

[0030] In this embodiment, a scanner 9 is suspended above the interior of the enclosure 2. The scanner 9 is used at least to detect the products below.

[0031] In this embodiment, a movable component 4 is provided below the frame 1, and the movable component 4 is at least used for moving on the ground;

[0032] Specifically, the moving component 4 includes a wheel frame 41, with a moving wheel 42 disposed below the wheel frame 41. A support leg 43 is fixedly connected to the top outer wall of the wheel frame 41. The support leg 43 can accept the movement of the lifting mechanism 5, driving the wheel frame 41 and the moving wheel 42 to move up and down, allowing the moving wheel 42 to contact and detach from the ground.

[0033] In this embodiment, a lifting mechanism 5 is provided below the frame 1, and the lifting mechanism 5 is used for at least the lifting of the moving component 4;

[0034] Specifically, the lifting mechanism 5 includes an ear plate 51 fixed on the inner side wall of the frame 1, and a guide rod 52 is fixedly installed on the top outer wall of the ear plate 51. One end of the support leg 43 is slidably sleeved on the outside of the guide rod 52, and one end of the support leg 43 slides on the guide rod 52.

[0035] Specifically, a connecting frame 53 is fixedly installed on the outside of adjacent support legs 43, and a horizontally distributed crossbeam 54 is fixedly installed inside the frame 1. A lifting plate 55 is installed below the crossbeam 54, and a rotating seat 56 is installed at the top center of the lifting plate 55. Both ends of the lifting plate 55 are fixed to the connecting frame 53. A screw 57 is rotatably inserted into the rotating seat 56. The upper part of the screw 57 is threadedly connected to the threaded hole of the crossbeam 54, and a turntable 58 is fixedly connected to the top of the screw 57. The operator drives the screw 57 by rotating the turntable 58. 7 rotates on the crossbeam 54 to realize the lifting and lowering movement of the screw 57. The screw 57 drives the lifting plate 55 to move up and down through the rotating seat 56. The lifting plate 55, the connecting frame 53, and the support leg 43 rise and fall synchronously, thereby using the lifting mechanism 5 to drive the moving component 4 to rise and fall. When the moving component 4 contacts the ground, the support leg 3 is lifted away from the ground, allowing the equipment to move flexibly on the ground through the moving component 4. After moving to the designated position, the moving component 4 is lowered through the lifting mechanism 5, so that the support leg 3 is fixedly supported on the ground.

[0036] In this embodiment, an openable shielding cover 6 is provided above the enclosure 2;

[0037] Specifically, the shielding cover 6 adopts a double-layer metal shielding cover, composed of aluminum-magnesium alloy and conductive rubber lining. The structure of the enclosure 2 is the same as that of the shielding cover 6. Aluminum-magnesium alloy is lightweight, high-strength, and has good conductivity, and is often used in structural components and shielding materials. The conductive rubber lining has good elasticity and conductivity, making it suitable for environments requiring flexible connections or sealing. Therefore, an aluminum-magnesium alloy frame with a conductive rubber lining is used to achieve shielding and grounding effects.

[0038] In this embodiment, an opening and closing mechanism 7 is provided on the rear side of the enclosure 2. The opening and closing mechanism 7 is used at least for the vertical opening and closing of the shielding cover 6.

[0039] Specifically, the opening and closing mechanism 7 includes a hinge seat 71 fixed on the side wall of the enclosure 2, a power telescopic rod 72 rotatably connected above the hinge seat 71, a rotating joint 73 at the top of the power telescopic rod 72, a connecting arm 74 fixedly installed on the back of the shield 6, the connecting arm 74 being connected to the rotating joint 73, and mounting grooves provided on both sides of the top of the enclosure 2, with a rotating hinge 75 connected to the shield 6 inside the mounting groove.

[0040] When it is necessary to pick up or put down the product, the operator can activate the power telescopic rod 72, which can be driven by a cylinder, hydraulic cylinder or electric telescopic rod, which can drive the rotating joint 73 and the connecting arm 74 to rotate downward, thereby allowing the shielding cover 6 to rotate on the rotating hinge 75, so that the shielding cover 6 can be opened or closed from above the enclosure 2.

[0041] In this embodiment, a storage tray 8 is slidably inserted into one side of the enclosure 2, and a scanner 9 is located above the storage tray 8. The scanner 9 is a scanning component of the detection equipment. The scanner 9 is used to scan the products on the storage tray 8 to achieve quality detection.

[0042] In this embodiment, support feet 3 are fixedly installed at the bottom of the frame 1. The support feet 3 include shock-absorbing columns 31 fixed on the outer wall of the bottom of the frame 1. The shock-absorbing columns 31 are mainly used to absorb the vibration generated during the operation of the equipment, prevent resonance, and ensure detection accuracy.

[0043] Specifically, the damping column 31 uses conductive rubber. Conductive rubber is typically made by adding conductive fillers, such as carbon black, graphene, or metal particles, to give it conductivity. This material combines the elasticity and conductivity of rubber, making it suitable for applications requiring both vibration isolation and electrical conductivity.

[0044] Specifically, the bottom of the shock-absorbing column 31 is provided with a grounding pad 32. The thickness of the grounding pad 32 is set to 5mm, and the surface resistance is <0.1Ω / m², which can effectively disperse the static charge of the equipment.

Claims

1. An AIO detection device with electromagnetic interference protection function, comprising: The frame (1) is characterized in that: a partition (2) is fixedly provided on the top of the frame (1), and a scanner (9) is suspended above the interior of the partition (2), and the scanner (9) is used at least to detect the products below; A movable component (4) is provided below the frame (1), the movable component (4) being used at least for moving on the ground; A lifting mechanism (5) is provided below the frame (1), and the lifting mechanism (5) is used for lifting at least the moving component (4); A closable shielding cover (6) is provided above the enclosure (2), and an opening and closing mechanism (7) is provided on the rear side of the enclosure (2). The opening and closing mechanism (7) is used at least for the opening and closing of the shielding cover (6). A storage tray (8) is slidably inserted into one side of the enclosure (2), and the scanner (9) is located above the storage tray (8).

2. The AIO detection device with anti-electromagnetic interference function according to claim 1, characterized in that: The bottom of each frame (1) is fixedly equipped with a support foot (3), the support foot (3) includes a shock-absorbing column (31) fixed on the bottom outer wall of the frame (1), and the bottom of the shock-absorbing column (31) is provided with a grounding pad (32).

3. The AIO detection device with anti-electromagnetic interference function according to claim 1, characterized in that: The rear side of the enclosure (2) is higher than the front side, and the side view shape of the enclosure (2) is a right trapezoidal structure.

4. An AIO detection device with anti-electromagnetic interference function according to claim 1, characterized in that: The moving component (4) includes a wheel frame (41), with a moving wheel (42) provided below the wheel frame (41), and a support leg (43) fixedly connected to the top outer wall of the wheel frame (41).

5. An AIO detection device with anti-electromagnetic interference function according to claim 4, characterized in that: The lifting mechanism (5) includes an ear plate (51) fixed on the inner side wall of the frame (1), and a guide rod (52) is fixedly installed on the top outer wall of the ear plate (51). One end of the support leg (43) is slidably sleeved on the outside of the guide rod (52). A connecting frame (53) is fixedly installed on the outside of the adjacent support leg (43). A horizontally distributed crossbeam (54) is fixedly installed inside the frame (1). A lifting plate (55) is provided below the crossbeam (54). A rotating seat (56) is provided at the top center of the lifting plate (55). Both ends of the lifting plate (55) are fixed on the connecting frame (53). A screw (57) is rotatably inserted inside the rotating seat (56). The upper part of the screw (57) is threadedly connected to the threaded hole of the crossbeam (54). A turntable (58) is fixedly connected to the top of the screw (57).

6. An AIO detection device with anti-electromagnetic interference function according to claim 1, characterized in that: The shielding cover (6) is a double-layer metal shielding cover, composed of aluminum-magnesium alloy and conductive rubber lining.

7. An AIO detection device with anti-electromagnetic interference function according to claim 1, characterized in that: The opening and closing mechanism (7) includes a hinge seat (71) fixed on the side wall of the enclosure (2). A power telescopic rod (72) is rotatably connected above the hinge seat (71). A rotating joint (73) is provided at the top of the power telescopic rod (72). A connecting arm (74) is fixedly installed on the back of the shield (6). The connecting arm (74) is connected to the rotating joint (73). Mounting grooves are provided on both sides of the top of the enclosure (2). A rotating hinge (75) connected to the shield (6) is provided inside the mounting groove.