A mainboard function test fixture
By using a motor-driven forward and reverse lead screw and an automated clamping frame with a pressure sensor, the problem of low efficiency in existing motherboard functional testing fixtures is solved. This enables rapid adaptation to the testing of motherboards of different sizes and positions, improving testing efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANGSHAN CHANGWEI ELECTRIC TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-03
AI Technical Summary
Existing motherboard functional testing fixtures require manual assistance from the machine for insertion and removal testing, resulting in low efficiency and high cost, and are unable to quickly adapt to the testing of motherboards of different positions and sizes.
A motherboard functional testing fixture was designed. It uses a motor-driven forward and reverse lead screw to adjust the spacing of the clamping frame. Combined with a pressure sensor and a microcontroller for automatic clamping, the fixture achieves automatic insertion and removal and height adjustment of the motherboard through a slider and limit lever, and supports the testing of motherboards of different sizes.
It enables automated and rapid clamping and testing of motherboards, improving testing efficiency, reducing the need for manual operation, adapting to motherboard insertion and removal of different sizes and positions, and reducing costs.
Smart Images

Figure CN224456813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motherboard testing technology, specifically a motherboard functional testing fixture. Background Technology
[0002] The computer motherboard, also called the motherboard, system board, or motherboard, comes in two types: commercial motherboards and industrial motherboards. It is installed inside the computer case and contains the main circuitry that makes up the computer; it is one of the most basic and important components of a microcomputer. When a motherboard malfunctions, diagnostic equipment is needed to examine it and identify the cause of the problem. Furthermore, because the electronics industry places high demands on the appearance of products, aesthetics are also a primary consideration for customers.
[0003] However, existing motherboard functional test fixtures have the following problems during use: traditional motherboard testing devices require manual assistance from the machine to plug and unplug test connectors, which is slow. Furthermore, when it is necessary to plug and unplug interfaces in other locations, the test fixture needs to be replaced, resulting in high costs and low work efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a motherboard function testing fixture to solve the related problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a motherboard function test fixture, comprising a base, a movable groove, and a slide rail. The movable groove is provided inside the base, and a slide rail is installed at the bottom of the movable groove. A movable block is provided inside the slide rail, and a clamping frame is installed at the top of the movable block. A horizontal plate is installed at the top of the base, and a side plate is provided inside the horizontal plate. A second movable block is provided on the outer wall of the side plate, and a pressure sensing mechanism is provided on the outer wall of both the second movable block and the clamping frame. A first movable block for detection is provided on the outer wall of the pressure sensing mechanism.
[0006] This technical solution provides a motherboard function test fixture, wherein a motor is provided on the outer wall of the base, and a positive and negative lead screw is installed through the output end of the motor via a coupling, the outer wall of the positive and negative lead screw meshing with the inner wall of the clamping frame.
[0007] This technical solution provides a motherboard function test fixture, wherein a microcontroller is provided at the front end of the base.
[0008] This technical solution provides a motherboard function test fixture. The pressure sensing mechanism includes a pressure sensor and a first spring. The pressure sensor is installed inside the clamping frame, and a universal interface module connected to a first movable block is installed on one side of the pressure sensor. The first spring connected to the first movable block is sleeved on the outer wall of the universal interface module.
[0009] This technical solution provides a motherboard function test fixture, wherein the inside of the horizontal plate is provided with a sliding groove, the bottom end of the side plate is equipped with a slider that matches the bottom end of the sliding groove, the top end of the sliding groove is provided with a limiting pull rod that is inserted into the upper part of the side plate, and the outer wall of the limiting pull rod is sleeved with a second spring.
[0010] Compared with the prior art, this utility model provides a motherboard function testing fixture, which has the following beneficial effects:
[0011] 1. This utility model uses a starting motor to drive the positive and negative lead screws to rotate, which in turn drive the moving blocks to move within the slide rail, thereby adjusting the distance between the clamping frames. The first movable block presses the universal interface module, which in turn presses the pressure sensor, causing the first spring to contract. At this time, the pressure sensor feeds back the pressure information to the microcontroller, which can then shut down the motor. This structure facilitates automatic clamping at the front and rear ends of the main board. The insertion information of the pressure sensors at the first and second movable blocks can be viewed on the display screen of the microcontroller. This structure allows operators to quickly determine whether the probe for inserting the universal interface module into the main board has been successfully inserted.
[0012] 2. This utility model uses the limit rod to compress the second spring, causing the limit rod to separate from the upper position of the side plate. At this time, the side plate can be moved back and forth in the slide groove by the slider, thereby driving motherboards of different lengths to be inserted for testing. When the height needs to be adjusted, the height can be adjusted by placing a pad on the base. This structure facilitates the clamping and testing of motherboards of different sizes. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the front sectional view of the present invention;
[0014] Figure 2 For the present utility model Figure 1 A magnified structural diagram at point A;
[0015] Figure 3 This is a schematic diagram of the left sectional view of the present invention;
[0016] Figure 4 This is a schematic diagram of the front sectional view of the present invention;
[0017] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B;
[0018] Figure 6 This is a schematic diagram of the main structure of this utility model.
[0019] In the diagram: 1. Base; 2. Movable groove; 3. Slide groove; 4. Moving block; 5. Clamping frame; 6. First movable block; 7. Horizontal plate; 8. Slide groove; 9. Side plate; 10. Second movable block; 11. Positive and negative lead screws; 12. Motor; 13. Pressure sensor; 14. First spring; 15. Universal interface module; 16. Slider; 17. Pull rod; 18. Second spring; 19. Microcontroller. 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.
[0021] Example 1, as Figure 1-4 As shown, this utility model provides a technical solution: a motherboard function test fixture, including a base 1, a movable groove 2, and a slide rail 3. The movable groove 2 is provided inside the base 1, and the slide rail 3 is installed at the bottom of the movable groove 2. A movable block 4 is provided inside the slide rail 3, and a clamping frame 5 is installed at the top of the movable block 4. A horizontal plate 7 is installed at the top of the base 1, and a side plate 9 is provided inside the horizontal plate 7. A motor 12 is provided on the outer wall of the base 1, and a positive and negative lead screw 11 that passes through the clamping frame 5 is installed at the output end of the motor 12 through a coupling. The outer wall of the positive and negative lead screw 11 meshes with the inner wall of the clamping frame 5. A sliding groove 8 is provided inside the horizontal plate 7, and a slider 16 that matches the bottom of the sliding groove 8 is installed at the bottom of the side plate 9. A limiting rod 17 is provided at the top for inserting into the side plate 9, and a second spring 18 is sleeved on the outer wall of the limiting rod 17. The moving block 4 is driven by the motor 12 to move within the slide rail 3, thereby adjusting the spacing between the clamping frames 5. This facilitates clamping and testing of motherboards of different widths through the position of the first movable block 6. In addition, by pulling the limiting rod 17 to compress the second spring 18, the limiting rod 17 is separated from the position above the side plate 9. At this time, the side plate 9 can be moved back and forth within the slide groove 8 by the slider 16, thereby driving motherboards of different lengths to be inserted for testing. When the height needs to be adjusted, a pad can be placed on top of the base 1 to adjust the height. This structure facilitates clamping and testing of motherboards of different sizes.
[0022] Example 2, as Figure 1-6As shown, this utility model provides a technical solution: a motherboard function test fixture, including a second movable block 10 disposed on the outer wall of a side plate 9, and both the second movable block 10 and the outer wall of the clamping frame 5 are provided with a pressure sensing mechanism, and the outer wall of the pressure sensing mechanism is provided with a first movable block 6 for detection, a microcontroller 19 disposed at the front end of the base 1, the pressure sensing mechanism including a pressure sensor 13 and a first spring 14, the pressure sensor 13 disposed inside the clamping frame 5, and a universal interface module 15 connected to the first movable block 6 is installed on one side of the pressure sensor 13, the outer wall of the universal interface module 15 is sleeved with a connection to the first movable block 6. When the first spring 14, which is connected to the motherboard, is in contact with the motherboard insertion position via the first movable block 6, the first movable block 6 presses the universal interface module 15. The universal interface module 15 then presses the pressure sensor 13, causing the first spring 14 to tighten. At this time, the pressure sensor 13 feeds back the pressure information to the microcontroller 19, which can then shut down the motor 12. This structure facilitates automatic clamping of the motherboard at the front and rear ends. The pressure sensor 13 at the second movable block 10 can also feed back information to the microcontroller 19, which displays the pressure to determine whether the probe insertion at the universal interface module 15 was successful.
[0023] Working principle: First, connect the external power supply. The operator can adjust the position of the side plate 9 in the slide groove 8 in advance to meet the alignment requirements of the motherboard test port and the universal interface module 15 on the side wall of the clamping frame 5. After the adjustment is completed, push the motherboard to the position of the second movable block 10 to insert the universal interface module 15. The pressure sensor 13 at the universal interface module 15 will then feed back information to the microcontroller 19. The microcontroller 19 displays the pressure. By checking the information at the microcontroller 19, it can be determined whether the probe insertion at the universal interface module 15 was successful. After the side insertion test is successful, the motor 12 can be started. The forward and reverse lead screw 11 rotates, thereby driving the moving block 4 to move within the slide rail 3, thus adjusting the distance between the clamping frames 5. The first movable block 6 presses the universal interface module 15, which in turn presses the pressure sensor 13, causing the first spring 14 to contract. At this time, the pressure sensor 13 feeds back the pressure information to the microcontroller 19, and the microcontroller 19 can shut down the motor 12. This structure facilitates automatic clamping at the front and rear ends of the main board, and the engagement information of the pressure sensor 13 at the first movable block 6 can be viewed on the display screen at the microcontroller 19.
[0024] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. A mainboard function test fixture, comprising a base (1), a movable slot (2) and a slide rail (3), characterized in that: The base (1) has an internal movable groove (2), and a slide rail (3) is installed at the bottom of the movable groove (2). A moving block (4) is installed inside the slide rail (3), and a clamping frame (5) is installed at the top of the moving block (4). A horizontal plate (7) is installed at the top of the base (1), and a side plate (9) is installed inside the horizontal plate (7). A second movable block (10) is installed on the outer wall of the side plate (9), and a pressure sensing mechanism is installed on the outer walls of both the second movable block (10) and the clamping frame (5). A first movable block (6) for detection is installed on the outer wall of the pressure sensing mechanism.
2. The mainboard function test fixture of claim 1, wherein: The outer wall of the base (1) is provided with a motor (12), and the output end of the motor (12) is connected to a positive and negative lead screw (11) that passes through the clamping frame (5) via a coupling. The outer wall of the positive and negative lead screw (11) meshes with the inner wall of the clamping frame (5).
3. The mainboard functional test fixture of claim 1, wherein: A microcontroller (19) is provided at the front end of the base (1).
4. The mainboard functional test fixture of claim 1, wherein: The pressure sensing mechanism includes a pressure sensor (13) and a first spring (14). The pressure sensor (13) is installed inside the clamping frame (5), and a universal interface module (15) connected to the first movable block (6) is installed on one side of the pressure sensor (13). The outer wall of the universal interface module (15) is fitted with the first spring (14) connected to the first movable block (6).
5. The mainboard functional test fixture of claim 1, wherein: The inside of the horizontal plate (7) is provided with a sliding groove (8), and the bottom of the side plate (9) is provided with a slider (16) that is compatible with the bottom of the sliding groove (8). The top of the sliding groove (8) is provided with a limiting rod (17) that is inserted into the side plate (9), and the outer wall of the limiting rod (17) is provided with a second spring (18).