一种视觉检测系统
The modular vision inspection system enables automated inspection of the entire surface of electronic transformers, solving the problems of low efficiency and blind spots in traditional inspection equipment. It achieves efficient and accurate multi-angle inspection and automatic sorting, thereby improving the level of intelligent production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU NOAH ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional manual visual inspection methods are inefficient and susceptible to visual fatigue. Existing automated inspection equipment cannot fully cover the entire surface of electronic transformers, especially with blind spots. Furthermore, manual flipping operations increase production cycle time, hindering the automation upgrade of production lines.
Design a modular vision inspection system, including multiple vision inspection devices and clamping devices. The system achieves automatic flipping and transfer of workpieces through the coordinated operation of a conveyor device. Combining multi-angle vision inspection, the system adopts a modular assembly line design to ensure complete inspection of the top surface, two sides, bottom surface and transition area of the workpiece, and achieves automatic classification through a sorting device.
It achieves fully automated inspection of workpiece appearance defects, improves inspection efficiency and consistency, reduces manual intervention, and is suitable for online quality control of large batches of workpieces. It has the advantages of high efficiency, accuracy and high integration.
Smart Images
Figure CN224507727U_ABST
Abstract
Claims
1. A vision inspection system, characterized by, include: The worktable is provided with a first conveying device, a first clamping device, a second conveying device, a second clamping device, and a temporary storage device in sequence along the Y-axis. Both the first conveying device and the second conveying device are used to transport the workpiece to be inspected; The first visual inspection device is located above the discharge end of the first conveying device and is used to inspect the top surface of the workpiece. The first clamping device is located at the discharge end of the first conveying device and is used to flip the workpiece up and down and transfer it to the second conveying device. The second and third visual inspection devices are located on both sides of the feed end of the second conveying device, and are used to inspect the two sides of the workpiece. The fourth visual inspection device, located on one side of the second conveying device, is used to inspect the bottom surface of the workpiece and the transition area between the bottom surface and the side surface; The second clamping device is located at the discharge end of the second conveying device and is used to flip the workpiece up and down and transfer it to the temporary storage device. The sorting device includes a robotic arm, an NG product unloading mechanism, and an OK product automatic stacking mechanism. The robotic arm is used to sort the workpieces of the temporary storage device to the NG product unloading mechanism or the OK product automatic stacking mechanism according to the detection results. The control device is electrically connected to the first conveying device, the second conveying device, the first visual inspection device, the first clamping device, the second visual inspection device, the third visual inspection device, the fourth visual inspection device, the second clamping device, and the sorting device.
2. The vision inspection system of claim 1, wherein, The OK product automatic stacking mechanism includes: A fourth moving component for conveying a single OK tray assembly to a stacking station includes a third linear slide rail and a fourth slider, wherein the fourth slider is slidably connected to the third linear slide rail; The OK tray assembly, located on the fourth movable assembly, includes an OK tray body and a support member. The support member is provided on the outer peripheral side wall of the OK tray body. The top height of the support member is higher than the height of the upper surface of the tray. The OK tray body is located on the fourth slider. The OK pallet support assembly includes two base plates and four pallet guide rods. The two base plates are arranged opposite each other and vertically fixed on the workbench. The two pallet guide rods are respectively located at both ends of the same base plate for guiding the pallet's lifting and lowering. The four pallet guide rods form a stacked station to limit the lateral movement of the pallet. Each base plate is also provided with at least one self-resetting support arm. The OK pallet lifting component is located below the stacking station and is used to lift the bottom OK pallet component upwards, thereby raising all the stacked OK pallet components upwards.
3. The visual inspection system according to claim 2, characterized in that, The self-resetting support arm includes a support arm body, a rotating shaft, a support, and a reset spring. The support is detachably fixed to the top of the base plate. The support arm body is rotatably connected to the support via the rotating shaft. The reset spring is sleeved on the rotating shaft, with its fixed end connected to the support and its movable end connected to the support arm body, providing downward reset torque. Oil-impregnated bearings are also sleeved at both ends of the rotating shaft, and the oil-impregnated bearings are embedded in the annular grooves on both sides of the support.
4. The vision inspection system of claim 1, wherein, The first, second, third, and fourth visual inspection devices each include a first moving component, a first supporting column, a second moving component, a first camera, a first supplementary lighting component, and a visual controller. The first moving component is detachably fixed to the worktable along the X-axis. The first supporting column is slidably connected to the worktable via the first moving component. The second moving component is disposed on the first supporting column along the Z-axis. The first camera and the first supplementary lighting component are slidably connected to the first supporting column via the second moving component. The first supplementary lighting component is coaxially mounted on the front end of the first camera lens. Both the first camera and the first supplementary lighting component are electrically connected to the visual controller. The visual controller has a built-in image processing algorithm module.
5. The vision inspection system of claim 4, wherein, The second and third visual detection devices also include a background plate, which is located on the side of the first supplementary lighting component away from the first camera and is coaxial with the first camera and the first supplementary lighting component. The background plate is connected to the first supplementary lighting component through a first connector.
6. The vision inspection system of claim 4, wherein, The fourth vision inspection device further includes two second cameras and two second supplementary lighting components electrically connected to the vision controller; the two second cameras are respectively located on both sides of the first camera and tilted inward at 30~60° relative to the center line of the workpiece being measured, and their optical axes intersect at the center of the inspection area of the workpiece being measured; the second supplementary lighting components are installed at the front end of the lens of the second camera; the two second cameras and the two second supplementary lighting components are all installed on a connecting plate arranged along the Y-axis and are slidably connected to the connecting plate along the Y-axis so as to adjust the distance between the two second cameras to adapt to the inspection requirements of workpieces of different sizes; The connecting plate is mounted on the first support column along the Z-axis via a third moving component, enabling the fourth visual detection device to be adjusted in the Z-axis direction for easy focusing.
7. The vision inspection system of claim 4, wherein, The first moving component includes a first slider, a first linear slide rail, and a first self-locking member. The first linear slide rail is detachably fixed to the worktable along the X-axis. The first slider slides in cooperation with the first linear slide rail. The bottom of the first support column is fixedly connected to the first slider. The first self-locking member passes through the first slider and abuts against the first linear slide rail, locking the first slider at the target position of the first linear slide rail.
8. The vision inspection system of claim 4, wherein, The second moving component includes a second linear slide rail, two second sliders, and two second self-locking members. The second linear slide rail is detachably fixed to the first support column along the Z-axis. The two second sliders slide in cooperation with the second linear slide rail. The first camera and the first supplementary lighting component are each independently fixedly connected to one of the second sliders. Each second slider is equipped with a second self-locking member. The second self-locking member passes through the corresponding second slider and abuts against the second linear slide rail to lock the second slider at the target position of the second linear slide rail.
9. The vision inspection system of claim 1, wherein, The first clamping device and the second clamping device have the same structure, both including a first mounting base, a flip clamping drive and a first clamp. The first mounting base is detachably and fixedly connected to the worktable. The flip clamping drive is detachably and fixedly connected to the first mounting base. The first clamp is connected to the output end of the flip clamping drive. The flip clamping drive drives the first clamp to clamp or release. The first clamp has a silicone layer on its clamping contact surface.
10. The vision inspection system of claim 9, wherein, The first conveying device and the second conveying device have the same structure, both including a mounting frame, a transmission belt assembly, a first driving component, a guide rail, and a positioning sensor. The mounting frame is fixed to the worktable along the Y-axis. The transmission belt assembly is mounted on the mounting frame and includes an annular transmission belt, a driving wheel, a driven wheel, and a tensioning wheel. The annular transmission belt is sleeved on the outer circumference of the driving wheel and the driven wheel. The tensioning wheel is mounted on the mounting frame and located inside the path of the annular transmission belt formed by the driving wheel and the driven wheel to adjust the preload for stable transmission. The first driving component is fixed to the bottom of the mounting frame, and its output end is connected to the driving wheel via a coupling. The guide rail is located on both sides of the transmission belt and is detachably fixed to the mounting frame. The guide rail is equipped with a positioning sensor for real-time detection of the workpiece position and positioning status.