A device for testing and adjusting a board card

Abstract

The application relates to the technical field of instrument control equipment, in particular to a measured board card clamp and a debugging device. The measured board card clamp comprises a limiting table, a linear sliding mechanism and a bearing table. The limiting table is used for connecting the measured board card. The linear sliding mechanism is connected with the limiting table to drive the linear motion of the limiting table, and the linear sliding mechanism is provided with a driving handle. The linear sliding mechanism is connected with the bearing table, and the bearing table is used for connecting one side of a calibration module in a debugging box. The application can improve the operation convenience, ensure the accurate positioning of the measured board card, enhance the reliability and improve the efficiency.

Description

Technical Field

[0001] This application relates to the field of instrumentation and control equipment technology, specifically to a test board fixture and adjustment device. Background Technology

[0002] Nuclear power plant safety-grade DCS modules (hereinafter referred to as functional modules or modules) perform safety-critical functions such as safe reactor shutdown, and therefore employ redundant designs, resulting in a complex system. Consequently, safety-grade DCS modules are characterized by their variety and functional redundancy.

[0003] 3U or 6U boards require calibration and debugging during use. Calibration and debugging are usually completed automatically by an integrated box-type control cabinet. Since there are many pins in the terminals of 3U or 6U boards, manual insertion and removal are required, and the terminals need to be aligned and the direction of force applied needs to be controlled, which is quite troublesome. Utility Model Content

[0004] This application provides a test board fixture and adjustment device. By positioning the test board and using a mechanical structure to drive the movement of the test board, the test board can be inserted and removed. The posture and movement direction of the test board are maintained, making insertion and removal convenient and solving the problem that the existing insertion and removal methods are relatively cumbersome.

[0005] This application is achieved through the following technical solution: In a first aspect, this application provides a test board fixture, comprising: A limiting stage, used to connect the board under test; A linear sliding mechanism is connected to the limiting platform to drive the limiting platform to move linearly, and the linear sliding mechanism is equipped with a drive handle; A support platform is provided, and the linear sliding mechanism is connected to the support platform. The support platform is used to connect to the calibration module side inside the test box.

[0006] The test board fixture provided in this application connects to the test board via a limiting platform, ensuring that the test board maintains a stable posture and position during movement, preventing offset or tilting during insertion and removal, ensuring accurate and reliable connection between the test board and the standard module, and reducing the risk of poor contact. The linear sliding mechanism drives the test board to perform smooth linear movement, preventing posture changes during movement, ensuring smooth insertion and removal, and providing a convenient operation method through the drive handle, reducing the complexity and intensity of manual operation. Compared with existing test board insertion and removal methods, this application improves operational convenience, ensures accurate positioning of the test board, enhances reliability, and increases efficiency, effectively solving the problems of cumbersome insertion and removal operations, low efficiency, and high potential risks in the prior art.

[0007] In some optional embodiments, the limiting platform is provided with two parallel and spaced limiting side plates, one end of which is widened in the length direction.

[0008] In some optional embodiments, a shim is provided on the limiting platform, the shim being located between the two limiting side plates to support the test board.

[0009] In some alternative embodiments, a limiting plate is provided on the limiting platform for fitting the bottom surface of the test board.

[0010] In some optional embodiments, the limiting plate is provided with a plurality of limiting posts, the limiting posts corresponding to the positioning holes on the test board.

[0011] In some alternative embodiments, the linear sliding mechanism includes: A guide rail slider assembly, wherein the guide rail of the guide rail slider assembly is connected to the support platform, and the slider of the guide rail slider assembly is connected to the limiting platform; A rack, which is connected to the limiting platform, wherein the length direction of the rack is parallel to the length direction of the guide rail; Gear, which meshes with the rack; A drive rod is rotatably connected to the support platform, a gear is sleeved on the drive rod to rotate with the drive rod, and a drive handle is connected to the drive rod.

[0012] In some alternative embodiments, the number of racks is at least two.

[0013] In some optional embodiments, the support platform is hollow, wherein the gear and drive rod are located in the support platform, and the support platform is also provided with a clearance sliding hole, and the rack is located in the clearance sliding hole.

[0014] In some alternative embodiments, the support platform is equipped with a heat sink.

[0015] Secondly, this application provides a testing device, including any of the test board clamps described in the first aspect.

[0016] Compared with the prior art, this application has the following advantages and beneficial effects: This application provides a test board fixture and adjustment device. Connected to the test board via a limiting platform, it ensures the test board maintains a stable posture and position during movement, preventing offset or tilting during insertion / removal. This ensures accurate and reliable connection between the test board and the standard module, reducing the risk of poor contact. A linear sliding mechanism drives the test board in smooth linear motion, preventing posture changes during movement and ensuring smooth insertion / removal. A drive handle provides convenient operation, reducing the complexity and intensity of manual operation. Compared to existing test board insertion / removal methods, this application improves operational convenience, ensures accurate positioning of the test board, enhances reliability, and increases efficiency, effectively solving the problems of cumbersome insertion / removal operations, low efficiency, and high potential risks in existing technologies. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of this application and form part of this application, do not constitute a limitation on the embodiments of this application. In the drawings: Figure 1 This is a schematic diagram of the test board fixture structure provided in the embodiments of this application; Figure 2 This is a schematic diagram of the installation structure of the guide rail sliding assembly in the support platform provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the test board fixture and calibration module when they are used together, as provided in the embodiments of this application. Figure 4 This is a schematic diagram of the heat sink mounting structure provided in an embodiment of this application; Figure 5 This is a schematic diagram of the adjustment and testing device provided in the embodiments of this application.

[0018] The attached diagram shows the markings and corresponding component names: 10-Adjustment box, 20-Board fixture, 21-Limit stage, 22-Drive handle, 23-Bearing platform, 24-Limit side plate, 25-Elevation block, 26-Limit plate, 27-Limit post, 281-Guide rail slider assembly, 282-Rack, 283-Gear, 284-Drive rod, 29-Radiator, 30-Test board, 40-Calibration module. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this application are only for explaining this application and are not intended to limit this application.

[0020] Firstly, such as Figures 1-4As shown, this application embodiment provides a test board fixture, which includes a limiting stage 21, a linear sliding mechanism, and a support stage 23; the limiting stage 21 is used to connect the test board 30; the linear sliding mechanism is connected to the limiting stage 21 to drive the limiting stage 21 to move linearly, and the linear sliding mechanism is equipped with a drive handle 22; the linear sliding mechanism is connected to the support stage 23, and the support stage 23 is used to connect to the calibration module 40 side inside the test box 10.

[0021] In this embodiment, when inserting the test board 30, the test board 30 is connected to the limiting platform 21. The drive handle 22 is operated to drive the test board 30 to move through the linear sliding mechanism. Since the test board 30 is limited by the limiting platform 21, the test board 30 will not be skewed or displaced during the displacement process. Therefore, the terminals of the test board 30 can be directly inserted into the terminals of the calibration module 40. When removing the test board 30, the drive handle 22 is operated to drive the test board 30 to move through the linear sliding mechanism. Since the test board 30 is limited by the limiting platform 21, the test board 30 will not be skewed or displaced during the displacement process. When the terminals of the test board 30 are separated from the terminals of the calibration module 40, the pins inside the terminals are not subjected to radial force and will not be bent. At the same time, the test board 30 can be smoothly removed.

[0022] The test board fixture provided in this application connects to the test board 30 via a limiting stage 21, ensuring that the test board 30 maintains a stable posture and position during movement, preventing offset or tilting during insertion and removal, ensuring accurate and reliable connection between the test board 30 and the standard module, and reducing the risk of poor contact. The linear sliding mechanism drives the test board 30 in smooth linear movement, preventing posture changes during movement and ensuring smooth insertion and removal. The drive handle 22 provides a convenient operating method, reducing the complexity and intensity of manual operation. Compared with existing test board 30 insertion and removal methods, this application improves operational convenience, ensures accurate positioning of the test board 30, enhances reliability, and increases efficiency, effectively solving the problems of cumbersome insertion and removal operations, low efficiency, and high potential risks in existing technologies. Its simple structure and convenient operation make it suitable for calibration and debugging of safety-grade DCS modules in nuclear power plants. It can also be extended to other industrial control or testing scenarios requiring frequent insertion and removal of the test board 30, showing broad application prospects.

[0023] In this embodiment, the shape of the limiting stage 21 can be designed as rectangular, L-shaped, or adjustable according to actual needs to accommodate test boards 30 of different sizes. For example, a rectangular limiting stage 21 is suitable for standard-sized 3U or 6U test boards 30, while an L-shaped limiting stage 21 can provide additional lateral support to prevent the test board 30 from tilting. To further enhance versatility, the limiting stage 21 can also be designed with a structure with slots or guide rails to ensure that the test board 30 remains stable during movement and avoids displacement.

[0024] In this embodiment, the shape of the support platform 23 can be adapted to the shape of the limiting platform 21, that is, the shape of the support platform 23 can also be made into a rectangle. The connection methods between the support platform 23 and the adjustment box 10 include, but are not limited to, bolt fixing, quick-release buckle, magnetic fixing, slide rail installation, etc. Bolt fixing provides a stable connection and is suitable for long-term use scenarios. Quick-release buckle facilitates quick installation and disassembly and is suitable for situations where the fixture needs to be frequently changed. Magnetic fixing is suitable for light fixtures and is easy to install. Slide rail installation facilitates adjustment of the fixture position and improves flexibility. In order to ensure the stability of the support platform 23 in the adjustment box 10, in actual implementation, the support platform 23 is connected to the adjustment box 10 by bolt fixing.

[0025] To further optimize fixture performance, anti-vibration design, guiding devices, and position sensors can be added. For example, anti-vibration pads or shock absorbers can be installed on the limit stage 21 or the support stage 23 to reduce vibration during insertion and removal; guide rods or guide wheels can be added to ensure accurate movement direction; and position sensors can be installed to monitor the movement position of the limit stage 21 in real time, supporting automated control. In addition, multi-functional interfaces (such as power interfaces and signal interfaces) can be designed on the limit stage 21 as needed to facilitate the connection and testing of the board under test 30.

[0026] In some optional embodiments, the limiting platform 21 is provided with two parallel and spaced limiting side plates 24, and one end of the limiting side plate 24 in the length direction is widened.

[0027] In this embodiment, the spacing between the two limiting side plates 24 can be adaptively designed according to the width of the test board 30 to accommodate test boards 30 of different sizes. In other embodiments, for example, the side plates can be moved and fixed by a slide rail or screw mechanism to ensure that test boards 30 of different sizes can be firmly clamped. The widened structure at one end of the limiting side plate 24 in the length direction can be designed as a flared shape or a beveled structure. The widened part realizes the lateral positioning of the test board 30, while the width of other parts is slightly smaller, which is suitable for exposing the ventilation holes on the test board 30, which is conducive to the cooling of the test board 30. At the same time, auxiliary fixing devices, such as spring clips or magnetic fixing blocks, can be installed on the widened part to further enhance the stability of the test board 30. The limiting side plate 24 can be made of high-strength aluminum alloy or stainless steel to ensure its durability and resistance to deformation. The surface can be treated with an anti-slip finish, such as adding rubber pads or a textured design, to prevent the tested board 30 from sliding or shifting during movement. Furthermore, the limiting side plate 24 can be equipped with scale markings or indicator lines to facilitate quick adjustment and positioning of the tested board 30 by operators. Elastic buffer pads, such as silicone or rubber pads, can also be installed on the inner side of the side plate to reduce impact and wear on the tested board 30 during insertion and removal. For scenarios requiring simultaneous testing of multiple tested boards 30, multiple sets of parallel-spaced limiting side plates 24 can be installed on the limiting stage 21. The limiting side plate 24 can also be designed with a quick-release structure for easy replacement or maintenance, such as by using snap-fit ​​or magnetic connections for installation and removal. This design is suitable for scenarios requiring frequent fixture changes or test configuration adjustments. Through the above design, the limiting side plate 24 not only improves the adaptability and stability of the fixture but also simplifies the operation process, making it suitable for various testing scenarios and possessing high practical value.

[0028] In some alternative embodiments, a shim 25 is provided on the limiting platform 21, the shim 25 being located between two limiting side plates 24 to support the test board 30.

[0029] In this embodiment, the shim block 25 provides stable support for the board under test 30, ensuring that the board under test 30 remains horizontal and does not wobble or tilt during testing. This is crucial for improving the accuracy and stability of calibration and debugging, especially when dealing with high-precision nuclear power plant safety-grade DCS modules. Stable support can significantly reduce calibration errors caused by inaccurate positioning of the board under test 30. Secondly, the shim block 25 can be adjusted according to the board under test 30 of different heights, enhancing the adaptability of the fixture. This allows the fixture to adapt to various sizes and shapes of board under test 30, thereby improving the versatility and flexibility of the fixture. For example, in some application scenarios, it may be necessary to test multiple board under test 30s of different heights simultaneously. The adjustable design of the shim block 25 can easily meet this requirement without frequent fixture changes. In addition, the shim block 25 can also be used with the limiting side. The plate 24 works in conjunction with the platform 25 to further enhance the fixation of the board under test 30. After the board under test 30 is placed on the shim 25, the limiting side plate 24 can laterally limit the board under test 30, ensuring that the board under test 30 will not move laterally during the test. This dual fixing mechanism not only improves the stability of the board under test 30, but also reduces the risk of test failure due to loosening of the board under test 30. Finally, the design of the shim 25 can also optimize the test process and improve test efficiency. Since the height of the board under test 30 can be quickly adjusted by the shim 25, the operator can complete the installation and positioning of the board under test 30 more quickly, thereby shortening the preparation time for calibration and debugging. In addition, the shim 25 can also reduce the direct contact between the board under test 30 and the limiting platform 21, reduce the wear and tear on the board under test 30 during the test, and extend the service life of the board under test 30.

[0030] In some alternative embodiments, a limiting plate 26 is provided on the limiting stage 21 for fitting the bottom surface of the test board 30.

[0031] In this embodiment, the limiting plate 26 provides stable support and precise positioning for the board under test 30. By closely fitting the bottom surface of the board under test 30, the limiting plate 26 ensures that the board under test 30 remains horizontal during testing without shaking or tilting. This is crucial for improving the accuracy and stability of calibration and debugging, especially when dealing with high-precision nuclear power plant safety-grade DCS modules. Stable support can significantly reduce calibration errors caused by inaccurate positioning of the board under test 30, ensuring the reliability and repeatability of test results. Secondly, the design of the limiting plate 26 can be adjusted according to different sizes and shapes of the board under test 30, enhancing the adaptability of the fixture and enabling it to accommodate various sizes of board under test 30. This improves the versatility and flexibility of the fixture. For example, in some applications, it may be necessary to test multiple test boards 30 of different sizes simultaneously. The adjustable design of the limiting plate 26 can easily meet this requirement without frequent fixture changes, thus improving testing efficiency and equipment utilization. The surface of the limiting plate 26 can be specially treated, such as by adding anti-slip textures or coatings, to further enhance the stability of the test board 30. This design can effectively prevent the test board 30 from sliding or shifting due to vibration or external force during testing, ensuring a smooth testing process. At the same time, the material of the limiting plate 26 can be selected from high-strength aluminum alloy or stainless steel to ensure its durability and resistance to deformation, thereby improving the overall quality and service life of the fixture.

[0032] In some optional embodiments, the limiting plate 26 is provided with a plurality of limiting posts 27, the limiting posts 27 corresponding to the positioning holes on the test board 30.

[0033] In this embodiment, the limiting post 27 engages with the positioning hole on the test board 30, enabling rapid positioning and fixation of the test board 30. Through precise mechanical engagement, the limiting post 27 ensures the stability of the test board 30 during testing, reducing calibration errors caused by positional deviations, thereby improving the accuracy and reliability of calibration and debugging. Secondly, the design of the limiting post 27 increases the adaptability and flexibility of the fixture. Test boards 30 of different sizes and shapes may have different positions and numbers of positioning holes. By detachably setting multiple limiting posts 27, The fixture can accommodate various types of test boards 30, eliminating the need for frequent fixture changes and improving the equipment's versatility and efficiency. Furthermore, the limiting post 27 works in conjunction with the limiting plate 26 to further enhance the fixation of the test board 30. The limiting plate 26 provides bottom support, while the limiting post 27 restricts the movement of the test board 30 from the side. This dual fixing mechanism effectively prevents the test board 30 from shaking or shifting during testing, ensuring the stability of the testing process. The design of the limiting post 27 also optimizes the testing process and improves testing efficiency. Because the limiting post 27 can quickly guide the test board 30 into the correct position, operators can complete the installation and positioning of the test board 30 more quickly, thereby shortening the preparation time for calibration and debugging. The structure of the limiting post 27 can be optimized according to actual needs. For example, the limiting post 27 can be designed with a certain degree of elasticity or flexibility to accommodate slight dimensional deviations, reducing assembly difficulties caused by manufacturing errors. This not only improves the adaptability of the fixture but also reduces the requirements for machining accuracy, thereby reducing production costs.

[0034] In this embodiment, the linear sliding mechanism may include various types, such as a guide rail slider mechanism, a ball screw mechanism, a pneumatic sliding mechanism, or an electric actuator mechanism. The guide rail slider mechanism is suitable for high-precision applications, providing smooth linear motion; the ball screw mechanism offers high precision and high load capacity; the pneumatic sliding mechanism is suitable for scenarios involving rapid and frequent insertion and removal; and the electric actuator mechanism supports automated control and remote operation. Furthermore, the drive handle 22 configured on the linear sliding mechanism facilitates manual or semi-automatic operation, further simplifying the insertion and removal process. In some optional embodiments, the linear sliding mechanism includes a guide rail slider assembly 281, a rack 282, a gear 283, and a drive rod 284. The guide rail of the guide rail slider assembly 281 is connected to the support platform 23, and the slider of the guide rail slider assembly 281 is connected to the limiting platform 21. The rack 282 is connected to the limiting platform 21, and the length direction of the rack 282 is parallel to the length direction of the guide rail. The gear 283 meshes with the rack 282. The drive rod 284 is rotatably connected to the support platform 23, and the gear 283 is sleeved on the drive rod 284 to rotate with the drive rod 284. The drive handle 22 is connected to the drive rod 284.

[0035] In some alternative embodiments, the number of racks 282 is at least two.

[0036] In this embodiment of the application, by increasing the number of racks 282, the movement stability of the limiting stage 21 can be ensured, thereby facilitating the rapid insertion and removal of the test board 30.

[0037] In some optional embodiments, the support platform 23 is hollow, wherein the gear 283 and the drive rod 284 are located in the support platform 23, and the support platform 23 is also provided with a clearance sliding hole, and the rack 282 is located in the clearance sliding hole.

[0038] In this embodiment, the support platform 23 can protect the internal gear 283, drive rod 284, and the meshing point between gear 283 and rack 282, ensuring smooth operation of the limit platform 21 and improving ease of operation.

[0039] In some alternative embodiments, the support platform 23 is equipped with a heat sink 29.

[0040] In this embodiment, two ventilation openings are provided at the bottom of the support platform 23, and the heat sink 29 is configured as a cooling fan and installed in the ventilation openings to exhaust the hot air inside the support platform 23 and ensure that the board under test 30 is in a suitable temperature environment.

[0041] Secondly, such as Figure 5 As shown, this application provides a testing device that includes any of the test board fixtures described in the first aspect.

[0042] In this embodiment, when inserting or removing the test board 30, the entire structure of the test board fixture and calibration module 40 can be removed, or the entire structure can be made into a pull-out structure so that the drive handle 22 is located in an open space for operation by personnel. In other embodiments, the drive handle 22 can also be connected to the drive rod 284 through a bidirectional ratchet mechanism. This structure has relatively small space requirements and can realize the insertion or removal of the test board 30 without disassembling the aforementioned overall structure.

[0043] The specific embodiments described above illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details are included in the above description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0044] It should be noted that in this specification, similar reference numerals and letters in the above figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this application, it should be noted that unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A test board fixture, characterized in that, include: Limiting platform (21), the limiting platform (21) is used to connect the board under test (30); A linear sliding mechanism is connected to the limiting platform (21) to drive the limiting platform (21) to move linearly. The linear sliding mechanism is equipped with a drive handle (22). The support platform (23) is connected to the linear sliding mechanism and is used to connect to the calibration module (40) side inside the test box (10).

2. The test board fixture according to claim 1, characterized in that, The limiting platform (21) is provided with two parallel and spaced limiting side plates (24), and one end of the limiting side plate (24) in the length direction is widened.

3. The test board fixture according to claim 2, characterized in that, A shim (25) is provided on the limiting platform (21), and the shim (25) is located between the two limiting side plates (24) to support the test board (30).

4. The test board fixture according to claim 1, characterized in that, The limiting platform (21) is provided with a limiting plate (26) for fitting the bottom surface of the test board (30).

5. The test board fixture according to claim 4, characterized in that, The limiting plate (26) is provided with a plurality of limiting posts (27), and the limiting posts (27) correspond to the positioning holes on the test board (30).

6. The test board fixture according to claim 1, characterized in that, The linear sliding mechanism includes: The guide rail slider assembly (281) has a guide rail connected to the support platform (23) and a slider connected to the limiting platform (21). A rack (282) is connected to the limiting platform (21), and the length direction of the rack (282) is parallel to the length direction of the guide rail; Gear (283), which meshes with rack (282); A drive rod (284) is rotatably connected to the support platform (23), a gear (283) is sleeved on the drive rod (284) to rotate with the drive rod (284), and a drive handle (22) is connected to the drive rod (284).

7. The test board fixture according to claim 6, characterized in that, The number of racks (282) is at least two.

8. The test board fixture according to claim 6, characterized in that, The support platform (23) is hollow, wherein the gear (283) and the drive rod (284) are located in the support platform (23), and the support platform (23) is also provided with a clearance sliding hole, and the rack (282) is located in the clearance sliding hole.

9. The test board fixture according to claim 8, characterized in that, The support platform (23) is equipped with a radiator (29).

10. A tuning device, characterized in that, Includes the test board fixture as described in any one of claims 1 to 9.

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