Board card test fixing device

Abstract

The invention relates to a fixing device for board card testing, and relates to the technical field of PCB testing. The two opposite vertical plates are arranged on the transverse plate in a sliding manner; the placing mechanism comprises two groups of oppositely arranged fixing assemblies which are respectively arranged on the two vertical plates and are used for jointly clamping a board card; the adjusting assembly is arranged on the transverse plate and used for driving the two vertical plates to slide relatively so as to adjust the distance. Through the adjustable distance between the vertical plates, the two fixing assemblies can adapt to board cards of different sizes, and the problems that fixing is not stable and adaptability is poor are solved; the adjusting assembly drives the vertical plate to slide, so that clamping of board cards of different models is ensured, deviation or shaking is avoided, and the testing precision is improved; the board card can be installed and replaced more quickly through simple and convenient operation, manual intervention and time waste are reduced, and frequent test requirements are met; the device is simple in structure, low in cost, easy to maintain and capable of improving the testing efficiency and guaranteeing the testing quality.

Description

Technical Field

[0001] The present application relates to the technical field of PCB board testing, and in particular to a board test fixture. Background Art

[0002] During subway vehicle operation, various boards (such as door controller boards) perform critical functions. For example, these boards are responsible for controlling the safe closing and opening of doors. Failures in these boards can lead to safety hazards such as entrapment or door jamming. Consequently, board failure rates are high and the types of failures vary widely. Regular functional testing is essential to ensure safe subway operation.

[0003] Boards are a key component of printed circuit boards (PCBs). These boards typically feature a pin connector that plugs into a slot on a computer motherboard, controlling hardware functions through a driver. To ensure board quality, rigorous functional testing is required during production. However, while existing PCB testing devices utilize a lifting mechanism to lower a needle bed into contact with the PCB, enabling automated testing, these devices often lack an effective PCB securing mechanism. During testing, the lowering of the needle bed can easily cause the PCB to shift, compromising test accuracy and potentially leading to inaccurate test results. This, in turn, hinders the diagnosis and repair of board faults.

[0004] To address this issue, a new fixing device is urgently needed that can stably fix the PCB board and adapt to the testing of different types of boards, ensuring the stability of the PCB board during the test process, thereby improving the test accuracy and reliability. Summary of the Invention

[0005] In order to solve the problem in the prior art that the PCB board is unstable and cannot be adapted to different models of boards, the present application provides a board test fixing device.

[0006] The present application provides a board test fixture device that adopts the following technical solution: A board test fixture, comprising: horizontal board; Two oppositely arranged vertical plates are slidably arranged on the horizontal plate; Placement mechanism, including: Two sets of oppositely arranged fixing components are respectively arranged on the two vertical plates for jointly clamping the board; The adjusting component is arranged on the horizontal plate and is used for driving the two vertical plates to slide relative to each other to adjust the distance between them.

[0007] By adopting the above technical solution, when in use, according to the size of the board to be tested, the adjustment component on the horizontal plate is adjusted to drive the two vertical plates to slide relative to each other to adjust the distance between the vertical plates, so that the spacing between the two sets of fixing components matches the size of the board; after adjustment, the board to be tested is placed between the two sets of fixing components, and the fixing components are used to clamp the board to ensure that the board does not deviate or shake during the test; after the board is stably fixed, the test device can proceed to the next test operation. After the test is completed, the vertical plate spacing can be adjusted again by adjusting the component, which facilitates the removal of the board and replacement of the next board to be tested; This device is designed with adjustable vertical plate spacing, which can quickly adapt to boards of different sizes, solving the problems of unstable fixation and poor adaptability in existing devices; the adjustment component drives the vertical plates to slide relative to each other, so that the two sets of fixing components can accurately clamp boards of different models, ensuring that the boards do not shift or shake during the test process, thereby improving the accuracy of the test results; at the same time, the simple operation design makes the installation and replacement of boards faster and more efficient, reducing manual intervention and time waste, suitable for multiple high-frequency testing needs, and compatible with multiple board models, with strong versatility and flexibility; the overall structure is simple and low-cost, easy to maintain and operate, which not only improves test efficiency but also ensures test quality, is suitable for application in large-scale production environments, and provides a more stable and efficient fixing method for different types of boards.

[0008] In a specific embodiment, the fixing assembly includes: A placement plate, fixed to the inner side of the vertical plate, for carrying the board; A sliding clamping portion is provided above the placement plate in a liftable manner and is used to press the board; The driving member is used to drive the sliding clamping part to move up and down.

[0009] By adopting the above technical solution and designing an adjustable fixing component, it can be flexibly adjusted according to the size of the board to be tested, ensuring that boards of different sizes can be accurately clamped, thereby improving the applicability and versatility of the equipment; the lifting and lowering action of the sliding clamping part is controlled by the driving part, thereby ensuring the stability of the board on the placement plate, avoiding errors caused by looseness or instability of the board during the test, thereby improving the accuracy of the test data; through the simple operation design, the user only needs to adjust the vertical plate spacing and start the driving part to quickly complete the clamping and fixation of the board, thereby reducing the complexity and time waste of manual operation and improving work efficiency.

[0010] In a specific possible implementation scheme, the sliding clamping part includes a sliding plate and a shell arranged on the horizontal plate, the shell is provided with a sliding hole arranged along the height direction, the sliding plate is provided with a connecting plate, the connecting plate passes through the sliding hole and extends to the inner cavity of the shell, and is connected to the driving member.

[0011] By adopting the above technical solution, the sliding plate is combined with the shell, and the design of sliding holes and connecting plates arranged along the height direction is adopted. The lifting and lowering of the sliding plate is controlled by the driving member to achieve the purpose of adjusting the clamping height. The design of the connecting plate and the driving member makes the clamping action efficient and responsive, and can automatically adjust the clamping force and clamping range according to the size of different boards, thereby simplifying the operation process and improving the adaptability and versatility of the equipment.

[0012] In a specific possible implementation scheme, the driving member includes a scissors frame and a handle, one end of the scissors frame is hinged to the inner bottom wall of the shell cavity, and the other end is hinged to the bottom of the connecting plate; the handle is provided on the side of the vertical plate away from the shell, the handle is connected to the scissors frame through a fixed rod, and is used to control the extension and retraction of the scissors frame in the vertical direction.

[0013] By adopting the above technical solution and utilizing the combined design of the scissor frame and the handle, the telescopic nature of the scissor frame can accurately complete the clamping and releasing operations of the board and ensure that the sliding plate is firmly pressed against the board and can adapt to boards of different thicknesses or sizes; the design of the handle and the fixing rod makes the operation process very intuitive and easy to control, provides convenient adjustment, and ensures the stability and accuracy of the clamping part; the entire solution has a simple structure and is easy to operate, can cope with different clamping objects, and improves work efficiency.

[0014] In a specific possible implementation manner, the vertical plate is provided with a penetrating strip hole, the strip hole is arranged along the length direction of the vertical plate, the fixing rod passes through the strip hole, and is slidably connected to the strip hole via a pulley.

[0015] By adopting the above technical solution and utilizing the combination of the pulley and the fixed rod, the fixed rod can slide smoothly and freely in the strip hole, reducing the friction resistance of the fixed rod and ensuring its smoothness and stability during the adjustment process. The arrangement of the strip holes along the length direction of the vertical plate allows the fixed rod to be adjusted within a larger range to adapt to different clamping requirements; the combination of the pulley and the fixed rod can optimize the adjustment process, avoid jamming problems, and make the clamping operation more efficient and stable.

[0016] In a specific possible implementation scheme, the driving member further includes a pressure spring, one end of the pressure spring abuts against the top of the connecting plate, and the other end abuts against the inner top wall of the inner cavity of the shell.

[0017] By adopting the above technical solution and utilizing the design of the pressure spring, the stability and clamping effect of the sliding plate can be optimized. During use, the elastic force of the pressure spring ensures that the sliding plate can be stably pressed down on the board, and the elastic force of the pressure spring ensures that the clamping position is fixed, thereby achieving a stable clamping effect and ensuring the stability of the operation; at the same time, the elastic effect of the pressure spring during the operation of the device can reduce the impact and improve the durability and reliability of the device.

[0018] In a specific possible implementation scheme, a guide rod is further provided in the shell, and the guide rod is arranged along the height direction of the shell. The sliding plate is provided with a slide plate, and the slide plate passes through the shell and extends into the shell to be slidably connected to the guide rod.

[0019] By adopting the above technical solution, the sliding plate is connected to the guide rod through sliding connection, so that the sliding plate can be accurately guided during the movement process, ensuring that the movement trajectory of the sliding plate always remains straight and smooth. The sliding plate can accurately adjust its position under the sliding connection with the guide rod, thereby improving the operating accuracy, stability and service life of the device, and ensuring high efficiency and reliability in long-term use.

[0020] In a specific possible implementation manner, an insulating pad is further included, and the insulating pad is provided on the top surface of the placement plate and the bottom surface of the sliding plate.

[0021] By adopting the above technical solution, by installing insulating pads on the top surface of the placement plate and the bottom surface of the sliding plate, not only the electrical isolation problem is solved, but also additional buffering effect is provided to reduce damage caused by friction and impact.

[0022] In a specific embodiment, the regulating component includes: A guide rail fixed to the horizontal plate; Two slides are slidably connected to the guide rails and are respectively connected and fixed to the two vertical plates; The guide rail is provided with a plurality of limiting holes along the length direction, and the two slide seats are respectively provided with latch members, and the latch members are detachably matched and locked with the plurality of limiting holes.

[0023] By adopting the above technical solution, flexible adjustment and locking of the position are achieved by designing the coordination of the guide rail, the slide seat and the latch member. A plurality of limit holes are provided on the guide rail, and the latch member is detachably matched and locked with these limit holes. This structure provides flexibility during the adjustment process. At the same time, the locking function of the latch member ensures the stability after adjustment, which not only improves the adjustability of the device, but also enhances the safety and stability during use.

[0024] In a specific possible implementation scheme, the latch member includes a vertical cylinder arranged on the sliding seat, a piston plate slidably installed in the vertical cylinder and a return spring, one end of the return spring abuts against the top of the piston plate, and the other end abuts against the inner top wall of the inner cavity of the vertical cylinder; the upper and lower sides of the piston plate are respectively provided with a vertical rod and an insertion rod, the vertical rod extends to the outside of the vertical cylinder and is connected to a pull plate, and the insertion rod passes through the vertical cylinder and the sliding seat in turn and can be inserted into the limiting hole.

[0025] By adopting the above technical solution, the adjustment and locking of the slide position are achieved by utilizing the cooperation of the reset spring, piston plate, insertion rod and vertical cylinder; when the user needs to adjust the slide position, he only needs to move the vertical rod by pulling the plate to drive the piston plate to slide, thereby releasing the lock between the slide and the guide rail, and the spring accumulates force and waits for recovery; after adjusting to the required position, the reset spring releases the accumulated force to restore the piston plate to its original position, and the insertion rod is automatically inserted into the limit hole and locked, ensuring the stability and safety of the slide position; this design not only ensures the convenience of operation, but also improves the stability and reliability of locking, thereby providing an efficient, accurate and safe adjustment mechanism.

[0026] In summary, the beneficial technical effects of this application are as follows: This application provides a stable clamping method suitable for boards of different sizes by designing an adjustable fixing device. The adjustment component on the horizontal plate drives the vertical plate to slide relative to each other, and the spacing between the two sets of fixing components is adjusted to ensure that boards of different models are clamped, solving the problems of poor adaptability and unstable fixation of existing devices. The sliding clamping part of the fixing component is adjusted by the driving member to ensure that the board can be stably placed and clamped, thereby improving the accuracy and stability of the test process. Combined with the design of pulleys, pressure springs, guide rods, etc., the overall structure is simple and easy to operate, making the clamping and fixing process more efficient and reducing manual intervention. In addition, the design of the device not only improves test efficiency, but is also compatible with boards of different sizes and adapts to various testing needs; through a simplified operating process, users can quickly and accurately complete the clamping and replacement of boards, reducing time waste and errors and improving work efficiency; by integrating multiple innovative elements, such as the lifting and lowering of the sliding clamping part, the action of the pressure spring, and the design of adjusting and locking the position through guide rails and latches, the device has good versatility and flexibility, while ensuring high precision and high stability, and is suitable for stable fixation and testing of boards in a variety of production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the board test fixture of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram for showing the structure of the placement plate, sliding plate and latch parts.

[0029] Figure 3 yes Figure 2 Cross-sectional view of the latch part in part A.

[0030] Figure 4 It is a schematic diagram used to show the structure of the scissor frame, handle, guide rod and pressure spring.

[0031] Explanation of the accompanying drawings: 1. Horizontal plate; 2. Vertical plate; 3. Placing mechanism; 31. Fixing assembly; 311. Placing plate; 312. Shell; 313. Sliding plate; 314. Sliding hole; 315. Connecting plate; 316. Pressure spring; 317. Scissors frame; 318. Fixing rod; 319. Handle; 3101. Insulating pad; 3102. Slide plate; 3103. Guide rod; 3104. Strip hole; 32. Adjusting assembly; 321. Guide rail; 322. Slide seat; 323. Limiting hole; 324. Vertical cylinder; 325. Piston plate; 326. Vertical rod; 327. Pull plate; 328. Return spring; 329. Insert rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a board test fixture, including but not limited to being placed on a test platform of a PCB board test device, for fixing different models of PCB boards (boards) during the test process to ensure that the PCB boards do not shift during the test process, thereby improving the test accuracy and reliability.

[0034] Reference Figure 1 and Figure 2 , board test fixture, including: The horizontal plate 1 is set horizontally and provides support for the device to ensure stability; Two vertical plates 2 are arranged opposite to each other, and the two vertical plates 2 are vertically arranged on the horizontal plate 1, and the two vertical plates 2 are slidably connected to the horizontal plate 1; The placement mechanism 3 comprises: Two sets of oppositely arranged fixing components 31 are respectively provided on the two vertical plates 2 to clamp the PCB together to ensure that it does not deviate or shake during the test; The adjustment component 32 is provided on the horizontal plate 1 and is used to drive the two vertical plates 2 to slide relative to each other to adjust the spacing, thereby adapting to PCB boards of different sizes; During use, according to the size of the PCB to be tested, the adjustment component 32 on the horizontal plate 1 is adjusted to drive the two vertical plates 2 to slide relative to each other and adjust the distance between the vertical plates 2 so that the spacing between the two sets of fixing components 31 matches the size of the PCB. After adjustment, the PCB to be tested is placed between the two sets of fixing components 31 and clamped by the fixing components 31 to ensure that the PCB does not deviate or shake during the test. After the PCB is stably fixed, the test device can proceed to the next test operation. After the test is completed, the spacing between the vertical plates 2 can be adjusted again by adjusting the components 32 to facilitate the removal of the PCB and the replacement of the next PCB to be tested. During this process, the adjustable spacing design of the vertical plates 2 can quickly adapt to PCB boards of different sizes, solving the problems of unstable fixation and poor adaptability in existing devices; the adjustment component 32 drives the vertical plates 2 to slide relative to each other, so that the two sets of fixing components 31 can accurately clamp PCB boards of different models, ensuring that the PCB boards do not shift or shake during the test, thereby improving the accuracy of the test results.

[0035] Reference Figure 1-3 In this embodiment, the adjustment component 32 includes: The guide rail 321 is fixed on the horizontal plate 1. The guide rail 321 is arranged horizontally and along the length direction of the horizontal plate 1. Two slides 322 are slidably connected to the guide rails 321. The slides 322 are arranged in a one-to-one correspondence with the two risers 2 and are connected and fixed. The movement of the slides 322 can drive the risers 2 to slide, thereby adjusting the distance between the risers 2; The guide rail 321 is provided with a plurality of limiting holes 323 , which are evenly distributed along the length direction of the guide rail 321 . The two slide seats 322 are respectively provided with latches, which are detachably matched and locked with the plurality of limiting holes 323 .

[0036] The latch member includes a vertical cylinder 324 disposed on the slide 322, a piston plate 325 slidably mounted in the vertical cylinder 324, and a return spring 328. In this embodiment, the vertical cylinder 324 is vertically disposed on the slide 322, the piston plate 325 is horizontally disposed in the vertical cylinder 324, and the return spring 328 is vertically disposed in the vertical cylinder 324. One end of the return spring 328 abuts against the top of the piston plate 325, and the other end abuts against the inner top wall of the inner cavity of the vertical cylinder 324. A vertical rod 326 and an insertion rod 329 are respectively provided on the upper and lower sides of the piston plate 325. The vertical rod 326 and the insertion rod 329 are arranged so that the vertical rod 326 extends upward to the outside of the vertical cylinder 324 and is connected to the pull plate 327; the insertion rod 329 passes downward, passes through the vertical cylinder 324 and the slide seat 322 in turn, and can be inserted into the limiting hole 323.

[0037] When the position of the vertical plate 2 needs to be adjusted, the vertical rod 326 can be moved by pulling the plate 327, driving the piston plate 325 to slide in the vertical cylinder 324. As the plate 327 is pulled, the plug rod 329 will also move and be pulled out of the limit hole 323, releasing the lock between the slide 322 and the guide rail 321. At this time, the slide 322 can move freely to the desired position. During this process, the spring will compress and accumulate force to prepare for the subsequent recovery operation. After unlocking, the user can move the slide 322 by manually or mechanically pushing it. When the slide 322 moves to the desired position, the user releases the pull plate 327, and the return spring 328 begins to release the stored force, automatically pushing the piston plate 325 back to its original position. As the piston plate 325 recovers, the insertion rod 329 will automatically insert into the limit hole 323 and lock it, thereby ensuring that the slide 322 is firmly fixed in the desired position, so that the vertical plate 2 and the fixing component 31 can be stably fixed in the desired position; ensuring the stability and safety of the position of the slide 322, the vertical plate 2 and the fixing component 31; thereby ensuring the convenience of operation, and improving the stability and reliability of the locking, providing an efficient, accurate and safe adjustment mechanism.

[0038] Reference Figure 1 、 Figure 2 and Figure 4 In this embodiment, each set of fixing components 31 includes a placement plate 311, a sliding clamping portion and a driving member. Specifically: The placement plates 311 are horizontally arranged on the vertical plates 2 and are located on the opposite inner sides of the two vertical plates 2. That is, the placement plates 311 in the two fixing assemblies 31 are arranged opposite to each other and are used to support the PCB board together. The sliding clamping part can be lifted and lowered above the placement plate 311. The sliding clamping part includes a sliding plate 313 and a shell 312 arranged on the placement plate 311. In this embodiment, the shell 312 is vertically arranged on the placement plate 311 and is arranged close to the vertical plate 2. The shell 312 is provided with a sliding hole 314 arranged along the height direction, and the sliding plate 313 is provided with a connecting plate 315. In this embodiment, the sliding plate 313 and the connecting plate 315 are horizontally arranged on the shell 312. The connecting plate 315 passes through the sliding hole 314 of the shell 312 and extends to the inner cavity of the shell 312, and is connected to the driving member. The driving member can drive the connecting plate 315 to move in the height direction, thereby driving the sliding plate 313 to move up and down, ensuring that the sliding plate 313 can accurately clamp the PCB board.

[0039] In this embodiment, an insulating pad 3101 is provided on the top surface of the placement plate 311 and the bottom surface of the sliding plate 313. The insulating pad 3101 includes but is not limited to a rubber insulating pad 3101. By installing the insulating pad 3101 on the top surface of the placement plate 311 and the bottom surface of the sliding plate 313, not only can the electrical isolation problem be solved, but also additional buffering effect can be provided to reduce the damage caused by friction and impact.

[0040] The driving member includes a scissor frame 317 and a handle 319. The handle 319 is provided on the side of the riser 2 away from the housing 312. The handle 319 is connected to the scissor frame 317 through a fixing rod 318 and is used to control the extension and contraction of the scissor frame 317 in the vertical direction. The riser 2 is provided with a through-bar hole 3104. The bar hole 3104 is arranged horizontally and along the length direction of the riser 2. One end of the fixing rod 318 is connected to the scissor frame 317, and the other end passes through the bar hole 3104 and is connected to the handle 319. A pulley is provided on the outer wall of the fixing rod 318. The fixing rod 318 is slidably connected to the bar hole 3104 through the pulley; thereby, the fixing rod 318 can slide smoothly and freely in the bar hole 3104, reducing the friction resistance of the fixing rod 318 and ensuring its smoothness and stability during the adjustment process. In this embodiment, the scissors frame 317 is vertically arranged in the shell 312. The scissors frame 317 is a cross-rotating and telescopic scissors structure, which can realize telescopic operation in the vertical direction. One end of the scissors frame 317 is hinged to the inner bottom wall of the inner cavity of the shell 312, and the other end is hinged to the bottom of the connecting plate 315; during operation, the handle 319 drives the fixed rod 318 to move in the horizontal direction, thereby driving the scissors frame 317 to telescope in the vertical direction, and then controlling the lifting and lowering of the sliding plate 313. The telescopicity of the scissors frame 317 can accurately complete the clamping and releasing operations of the PCB board, ensuring that the sliding plate 313 is stably pressed on the PCB board, so that it can adapt to PCB boards of different thicknesses or sizes.

[0041] In this embodiment, the driving member also includes a pressure spring 316, which is vertically arranged in the shell 312 and expands and contracts in the vertical direction. One end of the pressure spring 316 abuts against the top of the connecting plate 315, and the other end abuts against the inner top wall of the inner cavity of the shell 312; during use, the elastic force of the pressure spring 316 ensures that the sliding plate 313 can be stably pressed down on the PCB board, and the elastic force of the pressure spring 316 ensures the fixation of the clamping position, thereby achieving a stable clamping effect and ensuring the stability of the operation; at the same time, the elastic action of the pressure spring 316 during the operation of the device can reduce the impact and improve the durability and reliability of the device.

[0042] When the handle 313 is in the upright position, the handle 313 is rotated to move the handle 314 to the left, and the handle 314 is rotated to move the handle 314 to the right.

[0043] When the cam 315 is in the upright position, the cam 316 is in the upright position, and the cam 317 is in the upright position, so that the cam 316 is in the upright position, and the cam 317 is in the upright position, so that the cam 316 is in the upright position, and the cam 317 is in the upright position, so that the cam 316 is in the upright position, and the cam 317 is in the upright position, so that the cam 316 is in the upright position, When the sliding plate 313 reaches the desired position, the sliding plate 313 contacts the PCB, and the handle 319 stops pushing, and the sliding plate 313 stops moving. At this time, the elastic force provided by the pressure spring 316 enables the sliding plate 313 to be stably pressed down on the PCB, ensuring a stable clamping effect; During this process, the adjustable fixing component 31 can be flexibly adjusted according to the size of the PCB board to be tested, ensuring that PCB boards of different sizes can be accurately clamped, thereby improving the applicability and versatility of the equipment; the lifting and lowering action of the sliding clamping part is controlled by the driving part to ensure the stability of the PCB board on the placement plate 311, avoiding errors caused by looseness or instability of the PCB board during the test process, thereby improving the accuracy of the test data.

[0044] The working principle of the embodiment of the present application is as follows: when in use, the adjustment assembly 32 on the horizontal plate 1 is first adjusted according to the size of the PCB board to be tested, driving the two vertical plates 2 to slide relative to each other; the user pulls the vertical rod 326 upward through the pull plate 327, driving the piston plate 325 to slide upward in the vertical cylinder 324. As the pull is made, the insertion rod 329 also moves upward and is pulled out of the limit hole 323, releasing the lock between the slide 322 and the guide rail 321. At this time, the slide 322 can move freely to the desired position. During this process, the spring is compressed and accumulates force, preparing for the subsequent recovery operation; After unlocking, the user can manually push the slide 322 to move until the distance between the risers 2 matches the size of the PCB board. When the slide 322 moves to the desired position, the user releases the pull plate 327, and the return spring 328 begins to release its stored force, automatically pushing the piston plate 325 downward to return to its original position. As the piston plate 325 recovers, the insertion rod 329 automatically inserts downward into the limit hole 323 and locks it, thereby ensuring that the slide 322 is fixed in the desired position, so that the risers 2 and the fixing assembly 31 can be stably fixed in the desired position; When the cam 313 is in the upright position, the cam 313 is in the upright position, and the cam 313 is in the upright position, so that the cam 313 is in the upright position. When the sliding plate 313 reaches the desired position, the sliding plate 313 contacts the PCB. The handle 319 is stopped, and the sliding plate 313 stops moving. At this time, the elastic force provided by the pressure spring 316 enables the sliding plate 313 to be pressed down stably on the PCB, ensuring a stable clamping effect. At this time, the clamping effect is stable, and the test equipment can safely and accurately proceed to the next test operation. After the test is completed, the user releases the downward pressure on the PCB board by adjusting the position of the sliding plate 313, and then adjusts the spacing between the vertical plates 2 by adjusting the assembly 32 to facilitate the removal of the PCB board and replacement of the next PCB board to be tested; after adjustment, the device is ready for the next test.

[0045] The board test fixture of the present application solves the problems of unstable fixation and poor adaptability in existing devices through the design of adjustable risers 2 and precise control of the fixing assembly 31. By adjusting the spacing between the risers 2, PCB boards of different sizes can be quickly adapted, ensuring that the PCB boards are firmly fixed during testing and avoiding deviation or shaking, thereby improving the precision and accuracy of the test. The precise control of the sliding clamping part ensures stable clamping of the PCB boards, especially during testing, PCB boards of different thicknesses or sizes can be effectively clamped, enhancing the versatility and adaptability of the device. In addition, the design of the adjustment component 32 of the device improves the convenience and reliability of operation; the sliding seat 322 and the vertical plate 2 ensure precise adjustment and stable locking of the position through the locking and unlocking mechanism of the guide rail 321 and the latch, avoiding errors caused by position changes during use; the design of the pressure spring 316 and the scissor frame 317 enables the sliding plate 313 to be pressed down accurately, stably clamping the PCB board, and improving the durability and stability of the device; the simple adjustment method, stable clamping effect, and high-precision control of the overall device enable efficient, accurate, and safe PCB board fixation during the test process, greatly improving the work efficiency of PCB board testing and the accuracy of test data.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A board test fixture, characterized by: include: horizontal board (1); Two oppositely arranged vertical plates (2) are slidably arranged on the horizontal plate (1); The placement mechanism (3) comprises: Two sets of oppositely arranged fixing components (31) are respectively arranged on the two vertical plates (2) for jointly clamping the board; An adjustment component (32) is provided on the horizontal plate (1) and is used to drive the two vertical plates (2) to slide relative to each other to adjust the spacing.

2. The board test fixture according to claim 1, wherein: The fixing assembly (31) comprises: A placement plate (311) is fixed to the inner side of the vertical plate (2) and is used to carry the board; A sliding clamping portion is provided above the placement plate (311) in a liftable manner and is used to press the board; The driving member is used to drive the sliding clamping part to move up and down.

3. The board test fixture according to claim 2, wherein: The sliding clamping portion includes a sliding plate (313) and a shell (312) arranged on the transverse plate (1); the shell (312) is provided with a sliding hole (314) arranged along the height direction; the sliding plate (313) is provided with a connecting plate (315); the connecting plate (315) passes through the sliding hole (314) and extends to the inner cavity of the shell (312) to be connected to the driving member.

4. The board test fixture according to claim 3, wherein: The driving member includes a scissor frame (317) and a handle (319), one end of the scissor frame (317) is hinged to the inner bottom wall of the inner cavity of the shell (312), and the other end is hinged to the bottom of the connecting plate (315); the handle (319) is provided on the side of the vertical plate (2) away from the shell (312), and the handle (319) is connected to the scissor frame (317) through a fixing rod (318), and is used to control the extension and retraction of the scissor frame (317) in the vertical direction.

5. The board test fixture according to claim 4, characterized in that: The vertical plate (2) is provided with a through-going strip hole (3104), the strip hole (3104) being arranged along the length direction of the vertical plate (2), the fixing rod (318) passing through the strip hole (3104) and being slidably connected to the strip hole (3104) via a pulley.

6. The board test fixture according to claim 3, wherein: The driving member further includes a pressure spring (316), one end of the pressure spring (316) abuts against the top of the connecting plate (315), and the other end abuts against the inner top wall of the inner cavity of the shell (312).

7. The board test fixture according to claim 3, wherein: A guide rod (3103) is further provided in the housing (312), and the guide rod (3103) is arranged along the height direction of the housing (312). The sliding plate (313) is provided with a slide plate (3102), and the slide plate (3102) passes through the housing (312) and extends into the housing (312) to be slidably connected to the guide rod (3103).

8. The board test fixture according to claim 3, wherein: It also includes an insulating pad (3101), and the top surface of the placement plate (311) and the bottom surface of the sliding plate (313) are both provided with the insulating pad (3101).

9. The board test fixture according to claim 1, wherein: The regulating assembly (32) comprises: A guide rail (321) is fixed on the transverse plate (1); Two sliding seats (322) are slidably connected to the guide rail (321) and are respectively connected and fixed to the two vertical plates (2); The guide rail (321) is provided with a plurality of limiting holes (323) along the length direction, and the two slide seats (322) are respectively provided with latch members, and the latch members are detachably matched and locked with the plurality of limiting holes (323).

10. The board test fixture according to claim 9, characterized in that: The latch member includes a vertical cylinder (324) provided on the slide (322), a piston plate (325) slidably installed in the vertical cylinder (324) and a return spring (328), one end of the return spring (328) abuts against the top of the piston plate (325), and the other end abuts against the inner top wall of the inner cavity of the vertical cylinder (324); the upper and lower sides of the piston plate (325) are respectively provided with a vertical rod (326) and an insertion rod (329), the vertical rod (326) extends to the outside of the vertical cylinder (324) and is connected to a pull plate (327), and the insertion rod (329) passes through the vertical cylinder (324) and the slide (322) in sequence and can be inserted into the limiting hole (323).

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