Downward pressing jig and circuit board testing device

Abstract

The utility model discloses a pressing jig and a circuit board testing device. The pressing jig comprises a base frame, a driving assembly and a transmission module. The base frame comprises a supporting plate and a frame structure, the frame structure is connected to the bottom face of the supporting plate, and rib plates are arranged on the bottom face of the supporting plate and located in the frame structure. The driving assembly is arranged on the supporting plate, and the telescopic end of the driving assembly penetrates through the supporting plate. The transmission module comprises a transmission plate, a horizontal transmission assembly and a limiting piece, the limiting piece is arranged on the upper end face of the transmission plate, the limiting piece is located below the rib plate correspondingly and matched with the rib plate, the horizontal transmission assembly is arranged at the bottom of the transmission plate, and symmetrical clamping opening positions are formed by the transmission plate and the horizontal transmission assembly. The transmission plate is connected to the telescopic end of the driving assembly, and the transmission plate, the horizontal transmission assembly and the limiting piece are located in the frame structure. Wherein the telescopic end of the driving assembly is suitable for driving the transmission module to move in the up-down direction, so that the circuit board jig is assisted to move downwards to carry out a pressing test.

Description

Technical Field

[0001] This utility model relates to the field of ICT electrical testing, and in particular to a pressure fixture and circuit board testing device. Background Technology

[0002] In the testing process of automated circuit board production lines, circuit board fixtures are the main testing tools. Currently, circuit board fixtures in the technology can only perform electrical performance tests and functional tests on a horizontal plane, and lack the ability to perform pressure tests. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pressure fixture that can assist circuit board fixtures in performing pressure tests.

[0004] This utility model also proposes a circuit board testing device having the above-mentioned pressure fixture.

[0005] The pressing fixture according to a first aspect of the present invention includes:

[0006] The base frame includes a support plate and a frame structure. The frame structure is connected to the bottom surface of the support plate. The bottom surface of the support plate is provided with ribs, which are located within the frame structure.

[0007] A drive assembly is mounted on a support plate, and the telescopic end of the drive assembly passes through the support plate.

[0008] The transmission module includes a transmission plate, a horizontal transmission assembly, and a limiting member. The limiting member is disposed on the upper end face of the transmission plate and is located below and adapted to the rib. The horizontal transmission assembly is disposed at the bottom of the transmission plate. The transmission plate and the horizontal transmission assembly form a symmetrical clamping position. The transmission plate is connected to the telescopic end of the drive assembly. The transmission plate, the horizontal transmission assembly, and the limiting member are located within the frame structure.

[0009] The telescopic end of the drive component is adapted to drive the transmission module to move in the vertical direction.

[0010] According to some embodiments of the present invention, the ribs include at least three, and the ribs are evenly distributed on the bottom surface of the support plate.

[0011] According to some embodiments of the present invention, connectors are provided on both sides of the bottom end of the frame structure, crossbeams are provided on both sides of the frame structure, the crossbeams are located between the connectors and the support plate, and a through groove is provided at the bottom of the frame structure.

[0012] According to some embodiments of the present invention, the upper end of the base frame is provided with a plurality of first pads, the upper end of the plurality of first pads is provided with a protrusion, and the lower end of the protrusion is provided with a corresponding recess.

[0013] According to some embodiments of the present invention, a connecting groove is provided at the bottom of the transmission plate, the connecting groove is adapted to the protrusion, and a positioning groove is provided on one side of the transmission plate.

[0014] According to some embodiments of the present invention, the horizontal transmission assembly includes a pair of L-shaped guide rails and a plurality of rollers. The L-shaped guide rails are connected to the transmission plate, and the L-shaped guide rails and the transmission plate form symmetrical clamping positions. Each L-shaped guide rail is provided with the plurality of rollers.

[0015] According to some embodiments of the present invention, the plurality of rollers includes at least two rollers.

[0016] According to some embodiments of the present invention, the drive assembly includes at least six cylinders, the cylinder array is arranged above the support plate, and the telescopic end of each cylinder is connected to the transmission plate.

[0017] The circuit board testing apparatus according to a second aspect embodiment of the present invention includes

[0018] The aforementioned pressure jig;

[0019] The test component is connected to the clamp position, and the transmission module drives the test component to move in the up and down direction. The test component connects to the test product through the through slot.

[0020] A plurality of second gaskets are sandwiched between the test component and the connecting groove. The plurality of second gaskets have the same structure as the plurality of first gaskets. The plurality of second gaskets extend out of the transmission plate along the direction of the connecting groove.

[0021] According to the second aspect embodiment of the present invention, the test assembly includes a connecting plate, a positioning block, a plurality of connecting columns, a worktable, and a side plate. The connecting plate is installed at the clamping position. The positioning block is provided on the upper end surface of the connecting plate. The positioning block is adapted to the positioning groove. The connecting plate is connected to the worktable through the plurality of connecting columns. Side plates are provided on both sides of the bottom surface of the connecting plate. The side plates are provided with gripper slots. The outer side surface of the side plates is in contact with the L-shaped guide rail. The positioning block, the plurality of connecting columns, the worktable, and the side plates are located within the frame structure. The connecting plate is horizontally inserted within the frame structure.

[0022] The present invention has at least the following beneficial effects: it can assist the circuit board test fixture in downward displacement for pressure testing.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the assembly structure of the pressure fixture according to an embodiment of the present utility model;

[0026] Figure 2 This is an exploded view of the pressure fixture according to an embodiment of the present utility model;

[0027] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle;

[0028] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0029] Figure 5 This is a schematic diagram of another angle of the assembly structure of the pressure jig without frame according to an embodiment of the present utility model;

[0030] Figure 6 yes Figure 1 An exploded view of the transmission module of the pressure jig shown;

[0031] Figure 7 This is a schematic diagram of the assembly structure of the circuit board testing device according to an embodiment of the present utility model;

[0032] Figure 8 This is a schematic diagram of the assembly structure of the circuit board testing device without the base frame according to an embodiment of the present utility model;

[0033] Figure 9 This is an exploded view of the test components of the circuit board testing device according to an embodiment of the present utility model;

[0034] Figure label:

[0035] Base frame 100, support plate 110, frame structure 120, through channel 121, rib plate 130, connector 140, crossbeam 150.

[0036] Driver component 200

[0037] Transmission module 300, transmission plate 310, connecting groove 311, positioning groove 312, horizontal transmission assembly 320, L-shaped guide rail 321, roller 322, limiting component 330, clamping position 340.

[0038] First gasket 400, protrusion 410, recess 420

[0039] Test component 500, connecting plate 510, positioning block 520, connecting column 530, worktable 540, side plate 550, gripper slot hole 551.

[0040] Second gasket 600. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the terms "both sides," "upper," "lower," "left," "right," "horizontal," "bottom," and "inner," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 of this utility model. In the description of this utility model, unless otherwise stated, "a number" means two or more.

[0043] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installing", "connecting", "linking", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0044] The following reference Figures 1 to 6 Describes a pressure fixture according to an embodiment of the present invention.

[0045] Reference Figure 1 and Figure 5As shown, a pressing fixture according to a first aspect embodiment of the present invention includes a base frame 100, a drive assembly 200, and a transmission module 300. The base frame 100 includes a support plate 110 and a frame structure 120, the frame structure 120 being connected to the bottom surface of the support plate 110. A rib 130 is provided on the bottom surface of the support plate 110, and the rib 130 is located within the frame structure 120. The drive assembly 200 is disposed on the support plate 110, and the telescopic end of the drive assembly 200 passes through the support plate 110. The transmission module 300 includes a transmission plate 310, a horizontal transmission assembly 320, and a limiting member 330. The limiting member 330 is disposed on the upper end surface of the transmission plate 310, located below the corresponding rib 130 and adapted to it. The horizontal transmission assembly 320 is disposed at the bottom of the transmission plate 310, and the transmission plate 310 and the horizontal transmission assembly 320 form a symmetrical clamping position 340. The transmission plate 310 is connected to the telescopic end of the drive assembly 200. The transmission plate 310, the horizontal transmission assembly 320, and the limiting member 330 are located within the frame structure 120. The telescopic end of the drive assembly 200 is adapted to drive the transmission module 300 to move vertically.

[0046] When the pressure fixture is in use, the clamping position 340 can support the testing device. The telescopic end of the drive assembly 200 drives the testing device to complete the pressure action through the clamping position 340. After the pressure action is completed, the telescopic end of the drive assembly 200 returns to its original position and rises back up. The limiting member 330 and the rib plate 130 cooperate to position the reset of the transmission module 300.

[0047] In some specific embodiments of this utility model, the rib plate 130 includes at least three rib plates, which are evenly distributed on the bottom surface of the support plate 110.

[0048] Reference Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, three ribs 130 are evenly distributed on the bottom surface of the support plate 110. The ribs 130 can enhance the rigidity of the support plate 110, enabling the support plate 110 to stably support the drive device 200. It is understood that the number of ribs 130 should be set according to the size of the support plate 110 and the weight that the support plate 110 needs to bear. The larger the size of the support plate 110 and the larger the weight that the support plate 110 needs to bear, the more ribs 130 are needed. Specifically, there can be four, five, or six ribs, etc.

[0049] In some specific embodiments of this utility model, the bottom two sides of the frame structure 120 are provided with connectors 140, the two sides of the frame structure 120 are provided with crossbeams 150, the crossbeams 150 are located between the connectors 140 and the support plate 110, and the bottom of the frame structure 120 is provided with a through groove 121.

[0050] Reference Figure 2As shown, in this embodiment, the frame structure 120 is provided with a connector 140 and a crossbeam 150 on both sides. The connector 140 allows the fixture to be installed in more places for use, and the design of the crossbeam 150 facilitates the handling of the entire fixture.

[0051] In some specific embodiments of this utility model, the upper end of the base frame 100 is provided with a plurality of first pads 400, the upper end of the plurality of first pads 400 is provided with a protrusion 410, and the lower end of the protrusion 410 is provided with a corresponding recess 420.

[0052] Reference Figure 2 and Figure 4 As shown, in this embodiment, the support plate 110 is provided with eight first gaskets 400. Each first gasket 400 has two protrusions 410 at its upper end and corresponding recesses 420 at its lower end. The size of the recesses 420 is suitable for accommodating the protrusions 410. The first gaskets 410 can be continuously stacked through the cooperation of the protrusions 410 and the recesses 420. It is understood that the number of first gaskets 400 is determined according to actual conditions. The first gaskets 400 are suitable for use between the transmission plate 310 and the test product, providing a buffering effect and making the pressure transmission more uniform and stable. The first gaskets 400 placed on the support plate 110 facilitate replacement and addition / reduction during use.

[0053] In some specific embodiments of this utility model, a connecting groove 311 is provided at the bottom of the transmission plate 310, the connecting groove 311 is adapted to the protrusion 410, and a positioning groove 312 is provided on one side of the transmission plate 310.

[0054] Reference Figure 6 As shown, in this embodiment, the design of the connecting groove 311 facilitates connection with the first gasket 400, making the pressure transmission more uniform and stable, and the design of the positioning groove 312 enables the installation of the positioning test product.

[0055] In some specific embodiments of this utility model, the horizontal transmission component 320 includes a pair of L-shaped guide rails 321 and a plurality of rollers 322. The L-shaped guide rails 321 are connected to the transmission plate 310, and the L-shaped guide rails 321 and the transmission plate 310 form symmetrical clamping positions 340. Each L-shaped guide rail 321 is provided with a plurality of rollers 322. The plurality of rollers 322 includes at least two rollers.

[0056] Reference Figure 6As shown in this embodiment, each L-shaped guide rail 321 is equipped with ten rollers 322, which facilitates smoother and more convenient installation or removal of the testing device at the clamp position 340. It is understood that the horizontal transmission component 320 can also be a guide rail slide bar, guide rail block, or guide rail bearing, etc. The number of rollers 322 can be set according to actual conditions, specifically eight, nine, or twelve, etc.

[0057] In some specific embodiments of this utility model, the drive device 200 includes at least six cylinders, the cylinder array is arranged above the support plate 110, and the telescopic end of each cylinder is connected to the transmission plate 310.

[0058] Reference Figure 1 As shown, in this embodiment, the drive device 200 is equipped with six cylinders, which are evenly arranged in two rows and three columns above the support plate 110. The transmission plate 310 is connected to the telescopic ends of the cylinders and can move vertically along with the telescopic ends of the cylinders. The driving method of evenly placing multiple cylinders makes the force on the transmission plate 210 more stable. It can be understood that the number of cylinders can be set according to the actual situation, specifically seven, eight, or nine, etc.

[0059] The following reference Figures 1 to 9 This invention describes a circuit board testing apparatus according to another embodiment of the present invention.

[0060] A circuit board testing device according to a second aspect of the present invention includes a pressing fixture according to the first aspect of the present invention, a testing component 500, and a plurality of second pads 600. The testing component 500 is connected to a clamping position 340, and a transmission module 300 drives the testing component 500 to move in the vertical direction. The testing component 500 connects to the test product through a through groove 121. The plurality of second pads 600 are clamped between the testing component 500 and a connecting groove 311. The plurality of second pads 600 have the same structure as the plurality of first pads 400, and the plurality of second pads 600 extend out of a transmission plate 310 along the direction of the connecting groove 311.

[0061] Reference Figure 7 and Figure 8 As shown, in this embodiment, four second gaskets 600 are sandwiched between the test component 500 and the transmission module 300, ensuring uniform pressure transmission. The length of each second gasket 600 is longer than the connecting groove 311, and the gasket 600 extends from one end of the connecting groove 311 out of the transmission plate 310, facilitating the installation and replacement of the second gaskets 600. It is understood that the number of second gaskets 600 in the horizontal direction should be determined according to the left and right width of the connecting plate 510, specifically three, five, or six, etc. The number of second gaskets 600 stacked in the vertical direction is determined by the gap between the connecting plate 510 and the transmission plate 310.

[0062] According to a second aspect embodiment of the present invention, a circuit board testing device includes a testing component 500 comprising a connecting plate 510, a positioning block 520, a plurality of connecting posts 530, a worktable 540, and a side plate 550. The connecting plate 510 is installed in the clamping position 340. The upper end surface of the connecting plate 510 is provided with a positioning block 520, which is adapted to a positioning groove 312. The connecting plate 510 is connected to the worktable 540 through a plurality of connecting posts 530. Side plates 550 are provided on both sides of the bottom surface of the connecting plate 510. The side plates 550 are provided with gripper slots 551. The outer side surface of the side plates 550 is in contact with an L-shaped guide rail 321. The positioning block 520, the plurality of connecting posts 530, the worktable 540, and the side plates 550 are located within a frame structure 120. The connecting plate 510 is horizontally inserted within the frame structure 120.

[0063] Reference Figure 2 , Figure 7 , Figure 8 and Figure 9 As shown, the design of the gripper slot 551 facilitates the handling of the test component 500, making it easier to install and remove the test component 500 on the clamp position 340. The positioning block 520 and the positioning slot 312 cooperate to ensure that the test component 500 can be installed in the horizontal direction of the clamp position 340. There are twenty connecting posts 530, which are evenly arrayed on the worktable 540. The design of twenty connecting posts 530 ensures a stable connection between the connecting plate 510 and the worktable 540, while transmitting pressure more evenly. It can be understood that the number of connecting posts 530 can be set according to the actual situation, specifically eight, sixteen, or twenty-four, etc.

[0064] It is understandable that the number of second gaskets 600 set in the horizontal direction should be determined according to the width of the connecting plate 510 in the left and right directions, and specifically, it can be three, five or six, etc. The number of second gaskets 600 stacked in the vertical direction is determined by the size of the gap between the connecting plate 510 and the transmission plate 310.

[0065] When installing the test assembly, the test assembly 500 is lifted using the gripper slot 551 on the side plate 550, and the connecting plate 510 is aligned with the clamping position 340 and placed in. The connecting plate 510 slides into the frame structure 120 through the roller 322 in the L-shaped guide rail 321 until the positioning block 520 reaches the positioning groove 312. Several second shims 600 are inserted between the connecting plate 510 and the transmission plate 310.

[0066] When disassembling the test assembly, remove several second shims 600 between the connecting plate 510 and the transmission plate 310, and pull out the connecting plate 510 through the gripper slot 551 on the side plate 550.

[0067] During the testing process, the clamp position 340 can drive the test component 500 to move along the vertical direction within the frame structure 120, so that the workbench 540 can dock with the test product.

[0068] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pressure fixture, characterized in that, include: The base frame (100) includes a support plate (110) and a frame structure (120). The frame structure (120) is connected to the bottom surface of the support plate (110). A rib plate (130) is provided on the bottom surface of the support plate (110). The rib plate (130) is located inside the frame structure (120). A drive assembly (200) is disposed on a support plate (110), and the telescopic end of the drive assembly (200) passes through the support plate (110). A transmission module (300) includes a transmission plate (310), a horizontal transmission assembly (320), and a limiting member (330). The limiting member (330) is disposed on the upper end face of the transmission plate (310), and is located below the corresponding rib (130) and is adapted to the rib (130). The horizontal transmission assembly (320) is disposed at the bottom of the transmission plate (310). The transmission plate (310) and the horizontal transmission assembly (320) form a symmetrical clamping position (340). The transmission plate (310) is connected to the telescopic end of the drive assembly (200). The transmission plate (310), the horizontal transmission assembly (320), and the limiting member (330) are located within the frame structure (120). The telescopic end of the drive component (200) is adapted to drive the transmission module (300) to move in the vertical direction.

2. The pressure jig according to claim 1, characterized in that, The ribs (130) include at least three, and the ribs (130) are evenly distributed on the bottom surface of the support plate (110).

3. The pressure fixture according to claim 1, characterized in that, The frame structure (120) has connectors (140) on both sides of its bottom end, and crossbeams (150) on both sides of the frame structure (120). The crossbeams (150) are located between the connectors (140) and the support plate (110). The bottom of the frame structure (120) has a through groove (121).

4. A pressure fixture according to claim 1, characterized in that, The upper end of the base frame (100) is provided with a plurality of first gaskets (400), the upper end of the plurality of first gaskets (400) is provided with a protrusion (410), and the lower end of the protrusion (410) is provided with a corresponding recess (420).

5. A pressure fixture according to claim 4, characterized in that, The bottom of the transmission plate (310) is provided with a connecting groove (311), which is adapted to the protrusion (410), and a positioning groove (312) is provided on one side of the transmission plate (310).

6. A pressure fixture according to claim 1, characterized in that, The horizontal transmission assembly (320) includes a pair of L-shaped guide rails (321) and a plurality of rollers (322). The L-shaped guide rails (321) are connected to the transmission plate (310). The L-shaped guide rails (321) and the transmission plate (310) form a symmetrical clamping position (340). Each L-shaped guide rail (321) is provided with the plurality of rollers (322).

7. A pressure fixture according to claim 6, characterized in that, The plurality of rollers (322) includes at least two rollers.

8. A pressure fixture according to claim 1, characterized in that, The drive assembly (200) includes at least six cylinders, the cylinder array being disposed above the support plate (110), and the telescopic end of each cylinder being connected to the transmission plate (310).

9. A circuit board testing device, characterized in that, include: The pressure fixture as described in any one of claims 1 to 8; Test component (500), the test component (500) is connected to the clamp position (340), the transmission module (300) drives the test component (500) to move in the up and down direction, and the test component (500) docks with the test product through the through groove (121); A plurality of second gaskets (600) are sandwiched between the test assembly (500) and the connecting groove (311). The plurality of second gaskets (600) have the same structure as the plurality of first gaskets (400). The plurality of second gaskets (600) extend out of the transmission plate (310) along the direction of the connecting groove (311).

10. A circuit board testing device according to claim 9, characterized in that, The test assembly (500) includes a connecting plate (510), a positioning block (520), several connecting columns (530), a workbench (540), and a side plate (550). The connecting plate (510) is installed in the clamping position (340). The positioning block (520) is provided on the upper surface of the connecting plate (510). The positioning block (520) is adapted to the positioning groove (312). The connecting plate (510) is connected to the workbench (550) through the several connecting columns (530). The worktable (540) has side plates (550) on both sides of the bottom surface of the connecting plate (510). The side plates (550) have gripper slots (551). The outer side of the side plates (550) is in contact with the L-shaped guide rail (321). The positioning block (520), several connecting columns (530), the worktable (540) and the side plates (550) are located inside the frame structure (120). The connecting plate (510) is horizontally inserted inside the frame structure (120).

Images