Automatic testing device for logic board
By designing displacement and flipping mechanisms for automated testing devices, the problem of incomplete logic board scanning and inspection was solved, enabling comprehensive automated visual inspection of logic boards and improving the comprehensiveness and accuracy of inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN WEIDEXUN TECHNOLOGY CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, the scanning and testing of logic boards cannot achieve comprehensive detection, resulting in insufficient detection.
An automated testing device was designed, comprising components such as a pneumatic slide rail, a drive slide, a cylinder, a moving seat, a support, a first motor, and a logic board flipping mechanism. The logic board can be moved and flipped in all directions through the displacement and flipping mechanism, and is used in conjunction with a vision detector for comprehensive testing.
It achieves full-range automated visual inspection of logic boards, improving the comprehensiveness and accuracy of inspection.
Smart Images
Figure CN224152354U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of logic board testing technology, specifically to an automated testing device for logic boards. Background Technology
[0002] The logic board, also known as the screen driver board, central control board, or TCON board, is an important component in LCD display devices. It processes the LVDS image data input signals sent from the digital board, which include three types: RGB data signals, clock signals, and control signals. After processing, the logic board converts these signals into LVDS signals that can drive the LCD screen and then sends them directly to the LVDS receiver chip of the LCD screen.
[0003] After the logic board is manufactured, it needs to be tested to determine if there are any defects. A common method is automated visual inspection, which involves using an industrial control unit to automatically scan the logic board with an industrial detector, collect images, compare them with qualified parameters in a database, process the images to detect defects on the logic board, and display them on a monitor.
[0004] Generally, when scanning and testing logic boards, the logic boards are placed on a conveyor belt for movement and transportation, which prevents industrial detectors from performing comprehensive scanning and testing of the logic boards. Therefore, we propose an automated testing device for logic boards. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides an automated testing device for logic boards, solving the problems mentioned in the background.
[0006] The present invention provides the following technical solution: The present invention discloses an automated testing device for a logic board, including a test bench, a visual detector disposed above the test bench, and a displacement mechanism disposed above the test bench;
[0007] The displacement mechanism includes a pneumatic slide rail set on the test bench, a drive slide block set on the pneumatic slide rail, a cylinder set in front of the drive slide block, a movable seat slidably connected to the drive slide block, and the output end of the cylinder connected to the movable seat.
[0008] The movable seat is provided with a support, and a first motor is provided below the platform of the support. The output end of the first motor passes through the platform of the support and is provided with a support plate. The support plate is provided with a logic board flipping mechanism.
[0009] The pneumatic slide rail is symmetrically equipped with buffer components on both sides.
[0010] As a preferred embodiment, the logic board flipping mechanism includes a set of side frames symmetrically arranged on the support plate, a flipping shaft is provided on the side frame, a logic board support is provided on the inner side of the flipping shaft, a second motor is provided on one side of the side frame, and the output end of the second motor is connected to the corresponding flipping shaft.
[0011] As a preferred embodiment, the logic board bracket is provided with a slot.
[0012] As a preferred embodiment, the card slot is provided with a padding layer, and the surface of the padding layer is provided with a frosted layer.
[0013] As a preferred embodiment, the buffer includes buffer frames disposed on both sides of the pneumatic slide rail, the longitudinal section of the buffer frame being L-shaped, and a set of buffer columns disposed on the buffer frame.
[0014] As a preferred embodiment, the position of the buffer post corresponds to that of the movable seat, and the end of the buffer post is provided with a silicone head.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This invention, through the structural design of the displacement mechanism and the use of a buffer, enables the logic board to be accurately positioned below the vision detector. The logic board to be detected moves below the vision detector for automated visual inspection. The drive slide moves linearly on the pneumatic slide rail, and the cylinder pushes the moving seat on the drive slide, allowing the logic board to move back and forth, thereby moving the logic board to be detected below the vision detector for automated visual inspection. By controlling the operation of the first motor, the support plate is rotated at an angle, causing the logic board on the logic board flipping mechanism to rotate at an angle.
[0017] This invention utilizes a logic board flipping mechanism to perform angle flipping on the logic board, enabling the vision detector to perform omnidirectional detection on the logic board. The operation of the second motor rotates the flipping shaft, which in turn rotates the flipping shaft on one side, thereby flipping the logic boards on the two logic board supports at different angles. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0020] Figure 3 This is a structural schematic diagram of the displacement mechanism and the logic board flipping mechanism;
[0021] Figure 4 for Figure 3 Enlarged view of point B in the middle;
[0022] Figure 5 This is a schematic diagram of the buffer component.
[0023] In the diagram: 1. Test bench; 2. Vision detector; 3. Pneumatic slide rail; 4. Drive slide; 5. Cylinder; 6. Moving seat; 7. Support; 8. First motor; 9. Support plate; 10. Side frame; 11. Flip shaft; 12. Logic board bracket; 13. Second motor; 14. Slot; 15. Pad layer; 16. Buffer frame; 17. Buffer column; 18. Silicone head. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-5 An automated testing device for logic boards according to this embodiment includes a test bench 1. An electrical control box is installed below the test bench 1, and a control panel is installed on the electrical control box. The control panel is electrically connected to the electrical components in the device. A vision detector 2 is installed above the test bench 1. The vision detector 2 uses an industrial camera to automatically scan the logic board on the conveyor belt, collect images, compare them with qualified parameters in the database, and detect defects on the logic board through image processing. The defects of the logic board are then displayed on the control panel.
[0026] A displacement mechanism is installed above the test bench 1; the logic board to be tested is moved to the bottom of the vision detector 2 through the displacement mechanism to perform automated visual inspection of the logic board.
[0027] The displacement mechanism includes a pneumatic slide rail 3 set on the test bench 1, a drive slide 4 set on the pneumatic slide rail 3, a cylinder 5 set in front of the drive slide 4, a movable seat 6 slidably connected to the drive slide 4, and the output end of the cylinder 5 connected to the movable seat 6; the logic board to be tested is moved to the bottom of the vision detector 2 for automated visual inspection of the logic board.
[0028] The movable seat 6 is provided with a support 7, and a first motor 8 is provided under the platform of the support 7. The output end of the first motor 8 passes through the platform of the support 7 and is provided with a support plate 9. The support plate 9 is provided with a logic board flipping mechanism. The first motor 8 is a type of servo motor that can perform forward and reverse rotation, and rotates the support plate 9 by an angle, so that the logic board on the logic board flipping mechanism can also be rotated by an angle.
[0029] Buffer components are symmetrically arranged on both sides of the pneumatic slide rail 3 to buffer and limit the movement of the movable seat 6.
[0030] like Figure 1 As shown, the logic board flipping mechanism includes a set of side frames 10 symmetrically arranged on the support plate 9. A flipping shaft 11 is provided on the side frame 10, and a logic board support 12 is provided on the inner side of the flipping shaft 11. A second motor 13 is provided on one side frame 10. The output end of the second motor 13 is connected to the corresponding flipping shaft 11. The second motor 13 is a type of servo motor that can perform forward and reverse rotation. By placing the logic board to be tested between the two logic board supports 12, the operation of the second motor 13 rotates the flipping shaft 11, thereby flipping the logic board.
[0031] like Figure 3 , 4 As shown, the logic board bracket 12 has a slot 14 for holding the logic board in place.
[0032] like Figure 3 , 4 As shown, a pad 15 is provided in the card slot 14, and the surface of the pad 15 is provided with a frosted layer to improve the stability of the logic board during card insertion.
[0033] like Figure 1 , 5 As shown, the buffer includes buffer frames 16 installed on both sides of the pneumatic slide rail 3. The longitudinal section of the buffer frame 16 is L-shaped, and a set of buffer columns 17 are installed on the buffer frame 16. The buffer is used to buffer and limit the movement of the movable seat 6.
[0034] like Figure 1 As shown, the buffer post 17 corresponds to the position of the movable seat 6. The end of the buffer post 17 is provided with a silicone head 18 to limit the movement of the movable plate, so that the logic board can be accurately positioned below the vision detector 2.
[0035] In this embodiment, when the logic board is being tested, both sides of the logic board are placed in the slots 14 of the logic board bracket 12.
[0036] By using the displacement mechanism and buffer components, the logic board can be accurately positioned below the vision detector 2. The logic board is moved to the bottom of the vision detector 2 for automated visual inspection. The drive slide 4 moves linearly on the pneumatic slide rail 3. The cylinder 5 pushes the moving seat 6 on the drive slide 4, allowing the logic board to move back and forth, thereby moving the logic board to the bottom of the vision detector 2 for automated visual inspection.
[0037] By controlling the operation of the first motor 8, the support plate 9 is rotated at an angle, which in turn causes the logic board on the logic board flipping mechanism to rotate at an angle.
[0038] By using the structure of the logic board flipping mechanism, the logic board is flipped at an angle, allowing the vision detector 2 to detect the logic board from all directions. The second motor 13 rotates the flipping shaft 11, which in turn rotates the flipping shaft 11 on one side, thereby flipping the logic boards on the two logic board supports 12 at an angle.
[0039] 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. An automated testing device for logic boards, comprising a testing bench (1), characterized in that: A visual detector (2) is provided above the test platform (1), and a displacement mechanism is provided above the test platform (1); The displacement mechanism includes a pneumatic slide rail (3) set on the test bench (1), a drive slide (4) set on the pneumatic slide rail (3), a cylinder (5) set in front of the drive slide (4), a movable seat (6) slidably connected on the drive slide (4), and the output end of the cylinder (5) connected to the movable seat (6). The movable seat (6) is provided with a support (7), and a first motor (8) is provided below the platform of the support (7). The output end of the first motor (8) passes through the platform of the support (7) and is provided with a support plate (9). The support plate (9) is provided with a logic board flipping mechanism. The pneumatic slide rail (3) is symmetrically equipped with buffer components on both sides.
2. The apparatus of claim 1, wherein: The logic board flipping mechanism includes a set of side frames (10) symmetrically arranged on the support plate (9). A flipping shaft (11) is provided on the side frame (10). A logic board support (12) is provided on the inner side of the flipping shaft (11). A second motor (13) is provided on one side of the side frame (10). The output end of the second motor (13) is connected to the corresponding flipping shaft (11).
3. The apparatus of claim 2, wherein: The logic board bracket (12) is provided with a slot (14).
4. The apparatus of claim 3, wherein: A pad (15) is provided in the slot (14), and the surface of the pad (15) is provided with a frosted layer.
5. The apparatus of claim 1, wherein: The buffer component includes buffer frames (16) arranged on both sides of the pneumatic slide rail (3). The longitudinal section of the buffer frame (16) is L-shaped, and a set of buffer columns (17) are arranged on the buffer frame (16).
6. The apparatus of claim 5, wherein: The buffer post (17) is positioned corresponding to the movable seat (6), and a silicone head (18) is provided at the end of the buffer post (17).