Terminal appearance inspection device

By designing a terminal appearance inspection device, a CCD camera and a motor drive mechanism are used to achieve full-range automatic inspection of terminals, which solves the problems of low efficiency and insufficient accuracy of manual inspection, improves inspection accuracy and speed, and reduces the defect rate.

CN224383145UActive Publication Date: 2026-06-19DONGGUAN PINYI AUTOMATION TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN PINYI AUTOMATION TECH
Filing Date
2025-06-10
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, terminal appearance inspection relies on manual visual inspection, which leads to low inspection efficiency, inconsistent results, and a high risk of missed or false detections.

Method used

A terminal appearance inspection device was designed, which uses a CCD camera and multiple motor drive mechanisms to achieve all-round automatic inspection of terminals, including clamping, rotation and angle adjustment, to ensure no blind spots in the shooting.

Benefits of technology

This improved testing accuracy, reduced the defect rate, ensured product quality consistency, and increased testing speed.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224383145U_ABST
    Figure CN224383145U_ABST
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Abstract

This utility model discloses a terminal appearance inspection device, including a workbench. A placement plate is rotatably mounted at the center of the top of the workbench, and a clamping mechanism is installed on the placement plate. An L-shaped support frame is fixedly installed at the rear edge of the top of the workbench, and a longitudinal mounting slot is opened at the top of the L-shaped support frame. In this device, the base of the terminal can be clamped by the installation plate, bidirectional lead screw, installation block, spring, and compression block. Then, the camera can be moved to a suitable position to take pictures of the terminal. At the same time, the operator can start the first motor to drive the placement plate to rotate, thereby satisfying the requirement of taking pictures of the terminal from all sides without blind spots. This allows for accurate identification of minor defects on the terminal surface, such as scratches, cracks, and deformations. The detection accuracy is much higher than that of manual inspection, effectively ensuring product quality and reducing the defect rate.
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Description

Technical Field

[0001] This utility model relates to the technical field of appearance inspection devices, specifically a terminal appearance inspection device. Background Technology

[0002] Terminals are components that connect a battery to an external conductor, such as HDMI terminals. In electrical engineering, terminals often refer to wiring terminals, also called wiring terminals. They come in various types, including single-hole, double-hole, plug, and hook types. In terms of materials, they are classified as silver-plated copper, zinc-plated copper, copper, aluminum, or iron, etc. Their main function is to transmit electrical signals or conduct electricity.

[0003] Currently, terminal appearance inspection mainly relies on manual visual inspection. Manual visual inspection depends on the experience and skills of the inspectors. Working for a long time can easily cause visual fatigue, resulting in low inspection efficiency and difficulty in ensuring the consistency and accuracy of the inspection results, which can easily lead to missed inspections and false inspections.

[0004] To address this problem, the present invention provides a terminal appearance inspection device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a terminal appearance inspection device, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a terminal appearance inspection device, comprising a workbench, a placement plate rotatably mounted at the center of the top of the workbench, a clamping mechanism mounted on the placement plate, an L-shaped support frame fixedly mounted at the rear edge of the top of the workbench, a longitudinal mounting slot formed at the top of the L-shaped support frame, a threaded rod rotatably mounted inside the mounting slot, a second motor fixedly mounted on the outer wall of the rear end of the L-shaped support frame, the output end of the second motor fixedly connected to the threaded rod, a support block slidably mounted inside the mounting slot, the support block threadedly connected to the threaded rod, a cylinder fixedly mounted at the top of the support block, a telescopic rod fixedly mounted at the output end of the cylinder, a U-shaped plate fixedly mounted at the other end of the telescopic rod, a rotating shaft rotatably mounted inside the U-shaped plate, a camera fixedly mounted on the rotating shaft, and a third motor fixedly mounted on the outer wall of the left side of the U-shaped plate, the output end of the third motor fixedly connected to the rotating shaft.

[0007] Preferably, a guide rod is fixedly installed inside the mounting slot, and the support block is slidably connected to the guide rod.

[0008] Preferably, the top of the placement tray has a horizontally opening mounting groove, the bottom of the mounting groove has a horizontally opening driving groove, a bidirectional lead screw is rotatably installed inside the driving groove, and mounting plates are symmetrically slidably installed inside the mounting groove. The bottom of each set of mounting plates extends into the driving groove and is threadedly connected to the bidirectional lead screw. The right side of the bidirectional lead screw extends to the outside of the placement tray and is fixedly installed with a rotating head. A first motor is fixedly installed at the bottom of the worktable, and a drive shaft is fixedly installed at the output end of the first motor. The other end of the drive shaft is fixedly connected to the bottom of the placement tray.

[0009] Preferably, mounting blocks are fixedly installed at both ends of the two sets of mounting plates that are close to each other. Spring grooves are provided at the ends of the two sets of mounting blocks that are close to each other on the same side. A pressing block is slidably installed inside each set of spring grooves. Springs are fixedly installed at the ends of the two sets of spring grooves that are far apart from each other on the same side. The other end of each set of springs is fixedly connected to the pressing block at the corresponding position. A rounded guide edge is provided on each set of pressing blocks.

[0010] Preferably, the first motor is a drive motor, the second motor is a servo motor, and the third motor is a self-locking motor.

[0011] Preferably, the camera is a CCD camera.

[0012] Preferably, rubber pads are fixedly installed at the four corners of the bottom of the workbench. Beneficial effects

[0013] This utility model provides a terminal appearance inspection device. Compared with the prior art, it has the following advantages:

[0014] In this device, the base of the terminal is clamped by the mounting plate, bidirectional lead screw, mounting block, spring, and pressing block. The camera can then be moved to a suitable position to take pictures of the terminal. At the same time, the operator can start the first motor to rotate the placement plate, thus enabling the terminal to be photographed and inspected from all sides without blind spots. This allows for the accurate identification of minute defects on the terminal surface, such as scratches, cracks, and deformations. The detection accuracy is far higher than that of manual inspection, effectively ensuring product quality and reducing the defect rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a side view sectional structural diagram of the present invention;

[0018] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Workbench; 2. Placement tray; 3. First motor; 4. Mounting slot; 5. Drive slot; 6. Mounting plate; 7. Two-way lead screw; 8. Mounting block; 9. Spring groove; 10. Extrusion block; 11. Spring; 12. Rotating head; 13. Arc guide edge; 14. L-shaped support frame; 15. Mounting through slot; 16. Threaded rod; 17. Second motor; 18. Support block; 19. Guide rod; 20. Cylinder; 21. Telescopic rod; 22. U-shaped plate; 23. Rotating shaft; 24. Third motor; 25. Camera; 26. Rubber pad. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Please see Figure 1-4 The terminal appearance inspection device includes a workbench 1, a placement plate 2 rotatably mounted at the middle of the top of the workbench 1, a clamping mechanism mounted on the placement plate 2, an L-shaped support frame 14 fixedly mounted at the rear edge of the top of the workbench 1, an installation slot 15 longitudinally opened at the top of the L-shaped support frame 14, a threaded rod 16 rotatably mounted inside the installation slot 15, a second motor 17 fixedly mounted on the outer wall of the rear end of the L-shaped support frame 14, the output end of the second motor 17 fixedly connected to the threaded rod 16, a support block 18 slidably mounted inside the installation slot 15, the support block 18 threadedly connected to the threaded rod 16, a cylinder 20 fixedly mounted at the top of the support block 18, a telescopic rod 21 fixedly mounted at the output end of the cylinder 20, a U-shaped plate 22 fixedly mounted at the other end of the telescopic rod 21, a rotating shaft 23 rotatably mounted inside the U-shaped plate 22, a camera 25 fixedly mounted on the rotating shaft 23, a third motor 24 fixedly mounted on the outer wall of the left side of the U-shaped plate 22, the output end of the third motor 24 fixedly connected to the rotating shaft 23.

[0022] A guide rod 19 is fixedly installed inside the mounting slot 15, and the support block 18 is slidably connected to the guide rod 19.

[0023] The top of the placement tray 2 has a horizontally opening mounting groove 4, and the bottom of the mounting groove 4 has a horizontally opening driving groove 5. A bidirectional lead screw 7 is rotatably installed inside the driving groove 5. Mounting plates 6 are symmetrically slidably installed inside the mounting groove 4. The bottom of each set of mounting plates 6 extends into the driving groove 5 and is threadedly connected to the bidirectional lead screw 7. The right side of the bidirectional lead screw 7 extends to the outside of the placement tray 2 and is fixedly installed with a rotating head 12. A first motor 3 is fixedly installed at the bottom of the worktable 1. A drive shaft is fixedly installed at the output end of the first motor 3, and the other end of the drive shaft is fixedly connected to the bottom of the placement tray 2.

[0024] The first motor 3 is a drive motor, the second motor 17 is a servo motor, and the third motor 24 is a self-locking motor; the camera 25 is a CCD camera; rubber pads 26 are fixedly installed at the four corners of the bottom of the worktable 1.

[0025] In this device, the image capture unit 25 is equipped with a CCD camera, which provides superior imaging quality. A CCD camera, short for Charge-Coupled Device, uses a highly sensitive semiconductor material to convert light into electrical charges. These charges are then converted into digital signals by an analog-to-digital converter chip. After compression, the digital signals are transmitted to a computer via a USB interface to form the captured image. When inspecting the terminals, the operator places the terminals on the placement tray 2 and rotates the rotating head 12. This causes the bidirectional lead screw 7 to drive two sets of mounting plates 6 to clamp the base of the terminals. The second motor 17 and cylinder 20 are then activated to move the image capture unit 25 to a suitable position. Finally, the third motor 24 is activated to adjust the shooting angle of the image capture unit 25, thereby taking a picture of the terminals. During inspection, staff can activate the first motor 3 to rotate the terminal, enabling comprehensive scanning and inspection from all sides. This allows for precise identification of minor surface defects such as scratches, cracks, and deformations, significantly improving accuracy compared to manual inspection. This ensures product quality and reduces the defect rate. Furthermore, when inspecting the internal wiring of the terminal, the second motor 17, cylinder 20, and third motor 24 can be activated to move the imager 25 directly above the terminal, with the imager pointing vertically downwards, allowing for photographic inspection of the internal wiring. This setup enables rapid, all-around scanning of the terminal, significantly increasing inspection speed compared to traditional manual inspection. It also accurately identifies minor surface defects such as scratches, cracks, and deformations, with accuracy far exceeding that of manual inspection, effectively ensuring product quality and reducing the defect rate. Example

[0026] Please see Figure 1-4This embodiment provides a technical solution based on embodiment one: two sets of mounting plates 6 are fixedly installed at both ends of the front and rear of the side that are close to each other. The two sets of mounting blocks 8 on the same side are provided with spring grooves 9 at the ends that are close to each other. Each set of spring grooves 9 is slidably installed with a pressing block 10 inside. The two sets of spring grooves 9 on the same side are fixedly installed with springs 11 at the ends that are far apart from each other. The other end of each set of springs 11 is fixedly connected to the pressing block 10 at the corresponding position. Each set of pressing blocks 10 is provided with an arc guide edge 13.

[0027] In this device, when the operator rotates the rotating head 12 to clamp the two sides of the terminal with the mounting plate 6, the clamping blocks 10 clamp the front and rear ends of the terminal base under the action of the spring 11, thereby making the terminal more stable during the testing process. In addition, by providing the arc guide edge 13 on the clamping block 10, the terminal can be more easily inserted into the two sets of clamping blocks 10 on the same side when the clamping block 10 contacts the terminal, thereby making the device more practical.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal appearance inspection device, comprising a workbench (1), characterized in that: A placement plate (2) is rotatably mounted at the middle of the top of the workbench (1). A clamping mechanism is installed on the placement plate (2). An L-shaped support frame (14) is fixedly mounted at the rear edge of the top of the workbench (1). A mounting slot (15) is longitudinally opened at the top of the L-shaped support frame (14). A threaded rod (16) is rotatably mounted inside the mounting slot (15). A second motor (17) is fixedly mounted on the outer wall of the rear end of the L-shaped support frame (14). The output end of the second motor (17) is fixedly connected to the threaded rod (16). A sliding mechanism is installed inside the mounting slot (15). A support block (18) is threadedly connected to the threaded rod (16). A cylinder (20) is fixedly installed at the top of the support block (18). A telescopic rod (21) is fixedly installed at the output end of the cylinder (20). A U-shaped plate (22) is fixedly installed at the other end of the telescopic rod (21). A rotating shaft (23) is rotatably installed inside the U-shaped plate (22). A camera (25) is fixedly installed on the rotating shaft (23). A third motor (24) is fixedly installed on the outer left side of the U-shaped plate (22). The output end of the third motor (24) is fixedly connected to the rotating shaft (23).

2. The terminal appearance inspection device according to claim 1, characterized in that: A guide rod (19) is fixedly installed inside the mounting slot (15), and the support block (18) is slidably connected to the guide rod (19).

3. The terminal appearance inspection device according to claim 1, characterized in that: The top of the placement tray (2) is provided with a horizontally opening mounting groove (4), and the bottom of the mounting groove (4) is provided with a horizontally opening driving groove (5). A bidirectional lead screw (7) is rotatably installed inside the driving groove (5). Mounting plates (6) are symmetrically slidably installed inside the mounting groove (4). The bottom of each set of mounting plates (6) extends into the driving groove (5) and is threadedly connected to the bidirectional lead screw (7). The right side of the bidirectional lead screw (7) extends to the outside of the placement tray (2) and is fixedly installed with a rotating head (12). A first motor (3) is fixedly installed at the bottom of the worktable (1). A drive shaft is fixedly installed at the output end of the first motor (3). The other end of the drive shaft is fixedly connected to the bottom of the placement tray (2).

4. The terminal appearance inspection device according to claim 3, characterized in that: Mounting blocks (8) are fixedly installed at both ends of the two sets of mounting plates (6) that are close to each other. Spring grooves (9) are opened at the ends of the two sets of mounting blocks (8) that are close to each other on the same side. A pressing block (10) is slidably installed inside each set of spring grooves (9). Springs (11) are fixedly installed at the ends of the two sets of spring grooves (9) that are far apart from each other on the same side. The other end of each set of springs (11) is fixedly connected to the pressing block (10) at the corresponding position. A rounded guide edge (13) is opened on each set of pressing blocks (10).

5. The terminal appearance inspection device according to claim 3, characterized in that: The first motor (3) is a drive motor, the second motor (17) is a servo motor, and the third motor (24) is a self-locking motor.

6. The terminal appearance inspection device according to claim 1, characterized in that: The camera (25) is a CCD camera.

7. The terminal appearance inspection device according to claim 1, characterized in that: Rubber pads (26) are fixedly installed at the four corners of the bottom of the workbench (1).