Board card screening device

Abstract

The application discloses a board card screening device, which comprises a support framework, a support beam installed on the support framework and a screening mechanism installed on the support beam and used for installing a board card; the screening mechanism comprises a board card plug-in structure used for installing the board card and a support beam support installed on the support beam and matched with the board card plug-in structure to be positioned and installed; the board card screening device of the technical scheme is provided with the support beam and the screening mechanism, and when different models of board cards are screened, only the side beam and the support beam support need to be replaced, so that the screening test of multiple different models of board cards can be simultaneously realized in a set of universal screening device, the functions of the modularization, the universality and the reusability of the screening device are realized, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of circuit board experiments, and more specifically to a circuit board screening device. Background Technology

[0002] A circuit board is a type of printed circuit board (PCB). It is manufactured with a slot that can be inserted into the slot of the computer's main circuit board to control the operation of hardware, such as monitors and capture cards. After installing the driver, the corresponding hardware functions can be realized.

[0003] Circuit board screening devices are used to test and screen circuit boards. Their main function is to assemble the circuit boards into the screening device and complete screening tests for vibration, high temperature, and high humidity. Existing circuit board screening devices are custom-made for each circuit board model. If the circuit board is not produced later or is only produced once, the dedicated screening device becomes useless, resulting in waste.

[0004] Therefore, to solve the above problems, a board-based universal screening device is needed to realize the modularity, universality, and reusability of the screening device, and solve the problem of waste of dedicated screening devices. Summary of the Invention

[0005] In view of this, the board screening device of this technical solution, through the setting of support beams and screening mechanism, can perform screening tests on multiple different types of boards simultaneously in a set of universal screening devices by simply changing the side crossbeams and support beam supports when screening different types of boards. This realizes the modularity, universality and reusability of the screening device, and reduces production costs.

[0006] A board screening device includes a support frame, a support beam mounted on the support frame, and a screening mechanism mounted on the support beam for mounting boards; the screening mechanism includes a board insertion structure for mounting boards and a support beam support, the support beam support being mounted on the support beam to cooperate with the board insertion structure for positioning and installation.

[0007] Furthermore, the board insertion structure includes a left insertion block, a right insertion block, an upper side plate, a lower side plate, and a board limiting assembly; the left insertion block and the right insertion block are both arranged between the upper side plate and the lower side plate, and the left insertion block, the right insertion block, the upper side plate, and the lower side plate are connected and installed to form an installation cavity for installing the board limiting assembly, which is used to limit the board installation into the installation cavity.

[0008] Furthermore, the board limiting assembly includes a positioning block, an upper limit block, a lower limit block, and a locking screw installed on the board. The locking screw passes through the upper limit block, the positioning block, and the lower limit block in sequence along the vertical direction. The rotation of the locking screw can drive the upper limit block and the lower limit block to move simultaneously.

[0009] Furthermore, both ends of the positioning block are machined with inclined surfaces. The upper and lower limit blocks have the same structure. The upper limit block is machined to form a limit block inclined surface that is used in conjunction with the positioning block. The upper limit block is provided with a limit block threaded hole that is used in conjunction with the locking screw. The upper limit block and the locking screw cooperate to form a screw and nut pair structure. The rotation of the locking screw causes the upper limit block and the lower limit block to move closer or further away at the same time.

[0010] Furthermore, the left insertion block and the right insertion block have the same structure, and the left insertion block has a groove for insertion into the card limiting assembly.

[0011] Furthermore, the right insert block has a protrusion that cooperates with the support beam support for guiding installation, and the left insert block has an insert block support that cooperates with the support beam support for positioning installation.

[0012] Furthermore, the support beam support has an overall "Z" shaped structure, and the support beam support has a support opening machined on it to guide the installation of the insert block protrusion.

[0013] Furthermore, the support frame is a rectangular parallelepiped structure, and the support beam includes a central crossbeam and side crossbeams mounted on the support frame. The screening mechanism is arranged between the central crossbeam and the side crossbeams.

[0014] Furthermore, a frame sealing plate is provided on the support frame, and the frame sealing plate is connected and installed with the support frame to form a closed structure, and a plate guard plate is provided inside the closed structure.

[0015] The beneficial effects of this invention are:

[0016] The board screening device of this technical solution, through the setting of support beams and screening mechanism, can perform screening tests on multiple different types of boards simultaneously within a set of universal screening devices by simply changing the side crossbeams and support beam supports when screening different types of boards. This realizes the modularity, versatility and reusability of the screening device, and reduces production costs. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 A schematic diagram of the supporting framework;

[0020] Figure 3 Installation diagrams for different types of circuit boards;

[0021] Figure 4 An exploded view of the board assembly structure;

[0022] Figure 5 A schematic diagram of the support for the beam;

[0023] Figure 6 This is a schematic diagram of a single board insertion. Detailed Implementation

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 A schematic diagram of the supporting framework; Figure 3 Installation diagrams for different types of circuit boards; Figure 4 An exploded view of the board assembly structure; Figure 5 A schematic diagram of the support for the beam;

[0025] Figure 6 As shown in the figure, a board screening device includes a support frame 2, a support beam mounted on the support frame 2, and a screening mechanism mounted on the support beam for mounting the board. The screening mechanism includes a board insertion structure for mounting the board and a support beam support 6. The support beam support 6 is mounted on the support beam and positions the board insertion structure for installation. This board screening device, through the configuration of the support beam and screening mechanism, allows for simultaneous screening of multiple different board models within a single universal screening device by simply replacing the side crossbeam 4 and the support beam support 6. This achieves modularity, versatility, and reusability of the screening device, reducing production costs.

[0026] In this embodiment, the board insertion structure includes a left insertion block 7, a right insertion block 8, an upper side plate 91, a lower side plate 92, and a board limiting assembly. The left insertion block 7 and the right insertion block 8 are both arranged between the upper side plate 91 and the lower side plate 92. The left insertion block 7, the right insertion block 8, the upper side plate 91, and the lower side plate 92 are connected and installed to form a mounting cavity for installing the board limiting assembly. The board limiting assembly is used to limit the board 15 into the mounting cavity. After two identical insertion blocks and two identical side plates are fixedly installed with screws, a mounting cavity is formed inside. The board 15 is installed inside the cavity by the board limiting assembly for subsequent experiments.

[0027] In this embodiment, the board limiting assembly includes a positioning block 11, an upper limit block 10, a lower limit block 13, and a locking screw 12 mounted on the board. The locking screw 12 passes through the upper limit block 10, the positioning block 11, and the lower limit block 13 in sequence along the vertical direction. Rotation of the locking screw 12 can cause the upper limit block and the lower limit block to move simultaneously. The board limiting assembly is mounted on the left and right sides of the board. The positioning block 11 is fixedly connected to the board, and the locking screw 12 moves vertically (i.e.,...). Figure 4 As shown in the diagram, the upper and lower limit blocks move synchronously when the locking screw 12 rotates through the three components in sequence (up and down direction).

[0028] In this embodiment, both ends of the positioning block 11 are machined with inclined surfaces. The upper limit block 10 and the lower limit block 13 have the same structure. The upper limit block 10 is machined with a limiting block inclined surface to cooperate with the positioning block. The upper limit block 10 is provided with a limiting block threaded hole to cooperate with the locking screw 12. The upper limit block and the locking screw cooperate to form a screw and nut pair structure. The rotation of the locking screw 12 causes the upper limit block and the lower limit block to move closer or further away at the same time. Both ends of the positioning block 11 are machined with inclined surfaces, and the two corresponding limiting blocks are also machined with inclined surfaces. When the locking screw 12 rotates, it causes the limiting blocks to move along the screw axis and also along the screw radial direction, that is, along the inclined surface of the positioning block 11.

[0029] In this embodiment, the left insertion block 7 and the right insertion block 8 have the same structure. The left insertion block 7 forms a groove 71 for insertion into the board limiting assembly. When the board limiting assembly is inserted into the groove 71, the locking screw 12 rotates and the upper limiting block 10 and the lower limiting block 13 move simultaneously. Since the upper and lower limiting blocks move on the inclined surface of the positioning block 11, they will protrude outward and be locked in the groove 71, limiting the entire structure of the board 15 within the groove, thus achieving the limiting effect on the board. Of course, the initial gap between the groove 71 and the board limiting assembly is designed according to the usage requirements to ensure that the limiting block can achieve the limiting effect on the structure when it slides on the inclined surface of the positioning block 11. The two ends of the locking screw 12 are processed into structures with opposite rotation directions to ensure that the upper and lower limiting blocks move closer or further away at the same time.

[0030] In this embodiment, the right insert block 8 has a protruding insert block protrusion 81 that guides the installation of the support beam support, and the left insert block 7 has an insert block support 72 that positions the support beam support. The insert block protrusion 81 facilitates guidance during installation of the support beam support 6, improving assembly efficiency. The insert block support 72 overlaps and is installed onto the support beam support 6, where it is positioned and locked with screws.

[0031] In this embodiment, the support beam support 6 has an overall "Z"-shaped structure, and the support beam support 6 has a support opening 61 machined on it to guide the installation of the insert block protrusion. The Z-shaped support beam support 6 supports the upper part 62 to be positioned and installed in conjunction with the support beam, and the support opening 61 is used to guide the installation of the insert block protrusion 81.

[0032] In this embodiment, the support frame 2 is generally a cuboid structure. The support beam includes a central crossbeam 3 and side crossbeams 4 mounted on the support frame. The screening mechanism is arranged between the central crossbeam 3 and the side crossbeams 4. When conducting experiments with different models of circuit boards, only the corresponding side crossbeams 4 and support beam supports 6 need to be replaced.

[0033] In this embodiment, a frame sealing plate 1 is provided on the support frame 2. The frame sealing plate 1 is connected and installed with the support frame 2 to form a closed structure. A plate guard 5 is provided inside the closed structure. The plate guard 5 is used to prevent the plate from colliding with the outer shell when the plate assembly limiting mechanism fails. The support frame 2 has a protruding lug structure 21 for connecting and installing with the test bench. A plate wrench 14 is also hinged to the end of the plate. When it is necessary to remove the plate structure, rotate the plate wrench 14 and then remove the internal plate mechanism outward (at this time, the plate limiting assembly is in an unlocked state).

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A board screening device, characterized in that: It includes a support frame, a support beam mounted on the support frame, and a screening mechanism mounted on the support beam for mounting circuit boards; the screening mechanism includes a circuit board insertion structure for mounting circuit boards and a support beam support, the support beam support being mounted on the support beam and used to position and install the circuit board insertion structure. The board insertion structure includes a left insertion block, a right insertion block, an upper side plate, a lower side plate, and a board limiting assembly; the left insertion block and the right insertion block are both arranged between the upper side plate and the lower side plate, and the left insertion block, the right insertion block, the upper side plate, and the lower side plate are connected and installed to form a mounting cavity for installing the board limiting assembly, which is used to limit the board installation into the mounting cavity; The board limiting assembly includes a positioning block, an upper limit block, a lower limit block, and a locking screw installed on the board. The locking screw passes through the upper limit block, the positioning block, and the lower limit block in sequence along the vertical direction. The rotation of the locking screw can drive the upper limit block and the lower limit block to move simultaneously. Both ends of the positioning block are machined with inclined surfaces. The upper limit block and the lower limit block have the same structure. The upper limit block is machined to form a limit block inclined surface that is used in conjunction with the positioning block. The upper limit block is provided with a limit block threaded hole that is used in conjunction with the locking screw. The upper limit block and the locking screw cooperate to form a screw and nut pair structure. The rotation of the locking screw causes the upper limit block and the lower limit block to move closer or further away at the same time.

2. The board screening device according to claim 1, characterized in that: The left insertion block and the right insertion block have the same structure, and the left insertion block has a groove for insertion into the card limiting assembly.

3. The board screening device according to claim 2, characterized in that: The right insert block has a protrusion that guides the installation of the insert block and cooperates with the support beam support. The left insert block has an insert block support that positions the insert block and cooperates with the support beam support.

4. The board screening device according to claim 3, characterized in that: The support beam support has an overall "Z" shaped structure, and the support beam support has a support opening machined on it to guide the installation of the insert block protrusion.

5. The board screening device according to claim 4, characterized in that: The support frame is a rectangular parallelepiped structure. The support beam includes a central crossbeam and side crossbeams mounted on the support frame. The screening mechanism is arranged between the central crossbeam and the side crossbeams.

6. The board screening device according to claim 1, characterized in that: The support frame is provided with a frame sealing plate, which is connected and installed with the support frame to form a closed structure. The closed structure is provided with a plate guard.

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