Testing device and board card fixing jig
By designing an adjustable plate fixing fixture, the combination of threaded rods and sliders can be used to achieve the fixing of different specifications of plates, solving the problem of limited application scope of existing fixtures, simplifying operation and reducing costs.
Patent Information
- Application Number
- CN202421905198.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The existing board fixing fixtures are limited in scope due to the internal groove fixing, and they need to be selected according to the shape and specifications of the board, which is cumbersome and increases the testing cost.
A card fixing fixture is designed. Through the combination of rectangular block, first clamp rod, second clamp rod, oblique rod and drive motor, the rotation of the threaded rod and slider drives the oblique rod to move, and the contraction of the rectangular frame is realized to adapt to the fixation of the boards and cards of different specifications, and to facilitate disassembly through the cooperation of springs, lifting blocks, power motors and top rods.
It improves the scope of application of board fixing fixtures, simplifies operating procedures, and reduces testing costs.
Smart Images
Figure CN223139635U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of board card testing equipment, and particularly relates to a testing device and a board card fixing jig. Background Art
[0002] A board card is a type of printed circuit board (abbreviated as PCB board). When manufactured, it has a ferrule and can be inserted into the slot of the main circuit board (motherboard) of a computer to control the operation of hardware, such as devices like monitors and acquisition cards. After installing the driver program, the corresponding hardware functions can be realized. It can be divided into: ISA bus board cards; EISA bus board cards; PCI bus board cards and AGP bus board cards.
[0003] When testing a board card, a corresponding testing device is needed to complete the testing operation. During the use of the testing device, a board card fixing jig is needed to fix the board card. However, in the actual use process of the existing board card fixing jig, the grooves inside it are fixed. Operators need to select the corresponding fixing jig according to the shape and specifications of the board card. This fixing method will limit the applicable range of the board card fixing jig, increase the testing cost, and at the same time, it is necessary to repeatedly disassemble the fixing jig, and the operation is cumbersome. Therefore, it needs to be improved. Content of the Utility Model
[0004] The purpose of the utility model is to solve the above problems. The utility model provides a board card fixing jig, which has the advantage of a wide applicable range.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A board card fixing jig includes support columns. A placement plate is fixedly installed at the top ends of the support columns. On the left and right sides of the middle part of the top end of the placement plate, rectangular blocks are respectively movably installed. The number of the rectangular blocks is two. On the front and rear sides of the opposite surfaces of the two rectangular blocks, second clamping rods and first clamping rods are respectively hinged. The bottom ends of the second clamping rods and the first clamping rods are both movably connected to the top end of the placement plate. The number of the second clamping rods and the first clamping rods is both two. The two second clamping rods and the first clamping rods are hinged to each other. In the middle parts of the left and right sides inside the placement plate, movable blocks are respectively movably sleeved. The number of the movable blocks is two. The top ends of the two movable blocks are respectively fixedly connected to the bottom ends of the two rectangular blocks. The bottom ends of the two movable blocks are respectively fixedly installed with moving blocks. The number of the moving blocks is two. The top ends of the two moving blocks are respectively movably connected to the bottom end of the placement plate. The opposite surfaces of the two moving blocks are respectively hinged with inclined rods. The other ends of the inclined rods are hinged with sliders. The outer surface of the slider is movably connected to the outer surface of the placement plate. At the bottom of the middle part of the front end of the placement plate, a driving motor is fixedly sleeved. The other end of the output shaft of the driving motor is fixedly sleeved with a threaded rod. The middle part of the outer surface of the threaded rod is threadedly sleeved with the inner surface of the slider.
[0006] Preferably, in the present utility model, a fixing frame is fixedly installed in the middle of the bottom end of the placing plate, and a fixing rod is fixedly installed at the bottom of the left end of the fixing frame.
[0007] Preferably, in the present utility model, limiting grooves are respectively formed at the left and right ends of the fixing frame, a limiting block is movably sleeved in the middle of the inner part of the limiting groove, and the number of the limiting blocks is two and their shapes and sizes are the same.
[0008] Preferably, in the present utility model, springs are respectively fixedly installed at the bottom ends of the two limiting blocks, the other ends of the springs are fixedly connected to the bottom ends of the inner parts of the limiting grooves, a lifting block is fixedly installed between the two limiting blocks, and the outer surface of the lifting block is movably sleeved with the inner surface of the fixing frame.
[0009] Preferably, in the present utility model, a power motor is fixedly installed at the right end of the fixing rod, and a rotating shaft is fixedly sleeved at the other end of the output shaft of the power motor.
[0010] Preferably, in the present utility model, an elliptical block is movably connected to the middle of the bottom end of the lifting block, the inner surface of the elliptical block is fixedly sleeved with the outer surface of the rotating shaft, and top rods are respectively fixedly installed on the left and right sides of the top end of the lifting block, and the top ends of the top rods penetrate through the placing plate and extend to the top of the outer surface of the placing plate.
[0011] To achieve the above-mentioned another purpose, the present utility model provides a testing device, including a base and the above-mentioned board card fixing fixture, the top end of the base is fixedly connected to the bottom end of a support column, a bracket is fixedly installed at the rear side of the middle of the top end of the base, a pneumatic cylinder is fixedly installed in the middle of the inner top end of the bracket, a lifting plate is fixedly installed at the bottom end of the pneumatic cylinder, the outer surface of the lifting plate is movably sleeved with the inner surface of the bracket, and a testing column is fixedly installed at the front side of the bottom end of the lifting plate.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. By setting a rectangular block, a first clamping rod, a second clamping rod, an inclined rod and a driving motor, when the driving motor is started, the threaded rod will rotate. Since the outer surface of the threaded rod is threadedly sleeved with the inner surface of the slider, as the threaded rod rotates, the slider will drive the inclined rod to move, so that the other end of the inclined rod generates a thrust on the moving block, pushing the two moving blocks to drive the rectangular block to move away from each other through the movable block, and further causing the rectangular frame formed by the first clamping rod and the second clamping rod to contract, thereby realizing the fixation of board cards of different specifications, and thus improving the applicable range of the board card fixing fixture.
[0014] 2. In the present utility model, by arranging a spring, a lifting block, a power motor, an elliptical block and a push rod, when the power motor is started, the rotating shaft will drive the elliptical block to rotate. Since the outer surface of the elliptical block is movably connected to the outer surface of the lifting block, as the elliptical block rotates, the elliptical block will generate a thrust on the lifting block, pushing the lifting block to drive the limiting block and the push rod to move along the inner surface of the limiting groove and stretch the spring. In this way, the push rod can be used to jack up the board card, facilitating the removal of the board card. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is a schematic cross-sectional structural diagram of the side of the present utility model;
[0017] Figure 3 is a schematic cross-sectional structural diagram of the front of the present utility model;
[0018] Figure 4 is a schematic cross-sectional structural diagram of the slider of the present utility model;
[0019] Figure 5 is Figure 2 a partially enlarged structural diagram at A in
[0020] Figure 6 is Figure 3 a partially enlarged structural diagram at B in
[0021] In the figure: 1, support column; 2, placement plate; 3, rectangular block; 4, first clamping rod; 5, second clamping rod; 6, movable block; 7, moving block; 8, inclined rod; 9, slider; 10, drive motor; 11, threaded rod; 12, fixed bracket; 13, fixed rod; 14, limiting groove; 15, limiting block; 16, spring; 17, lifting block; 18, power motor; 19, rotating shaft; 20, elliptical block; 21, push rod; 22, base; 23, bracket; 24, pneumatic cylinder; 25, lifting plate; 26, test column. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] As Figures 1 to 6As shown in the figure, the utility model provides a board fixing jig, which includes a support column 1. A placement board 2 is fixedly installed at the top end of the support column 1. On the left and right sides of the middle part of the top end of the placement board 2, rectangular blocks 3 are respectively movably installed. The number of the rectangular blocks 3 is two. On the front and rear sides of the opposite surfaces of the two rectangular blocks 3, second clamping rods 5 and first clamping rods 4 are respectively hinged. The bottom ends of the second clamping rods 5 and the first clamping rods 4 are both movably connected to the top end of the placement board 2. The number of the second clamping rods 5 and the first clamping rods 4 is two. The two second clamping rods 5 and the first clamping rods 4 are hinged to each other. In the middle of the left and right sides of the placement board 2, movable blocks 6 are respectively movably sleeved. The number of the movable blocks 6 is two. The top ends of the two movable blocks 6 are respectively fixedly connected to the bottom ends of the two rectangular blocks 3. The bottom ends of the two movable blocks 6 are respectively fixedly installed with moving blocks 7. The number of the moving blocks 7 is two. The top ends of the two moving blocks 7 are respectively movably connected to the bottom end of the placement board 2. On the opposite surfaces of the two moving blocks 7, inclined rods 8 are respectively hinged. The other end of the inclined rod 8 is hinged to a slider 9. The outer surface of the slider 9 is movably connected to the outer surface of the placement board 2. At the bottom of the middle part of the front end of the placement board 2, a driving motor 10 is fixedly sleeved. The other end of the output shaft of the driving motor 10 is fixedly sleeved with a threaded rod 11. The middle part of the outer surface of the threaded rod 11 is threadedly sleeved with the inner surface of the slider 9.
[0024] When the driving motor 10 is started, the threaded rod 11 will rotate, so that the slider 9 threadedly sleeved with the threaded rod 11 drives the inclined rod 8 to move. Furthermore, a thrust is generated on the moving block 7 at the other end of the inclined rod 8, pushing the two moving blocks 7 to drive the rectangular blocks 3 to move away from each other through the movable blocks 6. The first clamping rods 4 and the second clamping rods 5 are hinged on the opposite surfaces of the two rectangular blocks 3 and the two first clamping rods 4 and the two second clamping rods 5 are hinged to each other. Therefore, as the rectangular blocks 3 move, the rectangular frame formed by the first clamping rods 4 and the second clamping rods 5 will contract, so as to fix board cards of different specifications, thereby improving the applicable range of the board fixing jig.
[0025] Reference Figures 1 to 6 , a fixing frame 12 is fixedly installed in the middle of the bottom end of the placement board 2, and a fixing rod 13 is fixedly installed at the bottom of the left end of the fixing frame 12.
[0026] As a technical optimization scheme of the utility model, the existence of the fixing frame 12 and the fixing rod 13 will play a role in support and fixation.
[0027] Reference Figure 2 、 Figure 3 、 Figure 5 and Figure 6 , limiting grooves 14 are respectively opened at the left and right ends of the fixing frame 12. In the middle of the limiting grooves 14, limiting blocks 15 are movably sleeved. The number of the limiting blocks 15 is two and their shapes and sizes are the same.
[0028] As a technical optimization solution of the present utility model, the inner surface of the limit groove 14 and the outer surface of the limit block 15 are both smooth, ensuring that the limit block 15 does not get stuck when moving along the inside of the limit groove 14.
[0029] Reference Figure 2 、 Figure 3 、 Figure 5 And Figure 6 As shown in, springs 16 are respectively fixedly installed at the bottoms of the two limit blocks 15, the other ends of the springs 16 are fixedly connected to the bottom inside the limit groove 14, a lifting block 17 is fixedly installed between the two limit blocks 15, and the outer surface of the lifting block 17 is movably sleeved with the inner surface of the fixing frame 12.
[0030] As a technical optimization solution of the present utility model, due to the restoring action of the spring 16, the lifting block 17 will drive the limit block 15 to move and then return to its original position.
[0031] Reference Figure 2 、 Figure 3 、 Figure 5 And Figure 6 As shown in, a power motor 18 is fixedly installed at the right end of the fixing rod 13, and the other end of the output shaft of the power motor 18 is fixedly sleeved with a rotating shaft 19.
[0032] As a technical optimization solution of the present utility model, when the power motor 18 is started, the rotating shaft 19 will rotate.
[0033] Reference Figures 2 to 6 As shown in, the middle of the bottom end of the lifting block 17 is movably connected with an elliptical block 20, the inner surface of the elliptical block 20 is fixedly sleeved with the outer surface of the rotating shaft 19, and the left and right sides of the top end of the lifting block 17 are respectively fixedly installed with ejector rods 21, and the top ends of the ejector rods 21 penetrate through the placing plate 2 and extend to the top of the outer surface of the placing plate 2.
[0034] As a technical optimization solution of the present utility model, when the rotating shaft 19 drives the elliptical block 20 to rotate, a thrust will be generated on the lifting block 17 by the elliptical block 20, pushing the lifting block 17 to drive the ejector rod 21 to move.
[0035] Reference Figures 1 to 3 、 Figure 5 And Figure 6 As shown in, the present utility model provides a testing device, including a base 22 and the above-mentioned board fixing jig, the top end of the base 22 is fixedly connected to the bottom end of the support column 1, a bracket 23 is fixedly installed at the rear side of the middle of the top end of the base 22, a pneumatic cylinder 24 is fixedly installed at the middle of the inner top end of the bracket 23, a lifting plate 25 is fixedly installed at the bottom end of the pneumatic cylinder 24, the outer surface of the lifting plate 25 is movably sleeved with the inner surface of the bracket 23, and a testing column 26 is fixedly installed at the front side of the bottom end of the lifting plate 25.
[0036] As a technical optimization solution of the present utility model, after the air cylinder 24 is started, the lifting plate 25 will drive the test column 26 to move downward. When the test column 26 contacts the test point on the board, the test operation can be completed, and the data will be displayed on the display screen on the base 22.
[0037] The working principle and usage process of the present utility model are as follows:
[0038] First, the operator places the board to be tested on the top of the placement plate 2 and within the rectangular frame formed by the first clamping rod 4 and the second clamping rod 5. Then, the operator starts the driving motor 10, causing the threaded rod 11 to rotate. At this time, the slider 9 threadedly sleeved on the outer surface of the threaded rod 11 will drive one end of the inclined rod 8 to move, so that the other end of the inclined rod 8 generates a thrust on the moving block 7, pushing the two moving blocks 7 to drive the movable block 6 and the rectangular block 3 to move away from each other. As a result, the first clamping rod 4 and the second clamping rod 5 move together with the rectangular block 3. At this time, the rectangular frame formed by the first clamping rod 4 and the second clamping rod 5 will contract, thereby clamping and fixing the board. Then, the operator starts the air cylinder 24, causing the lifting plate 25 to drive the test column 26 to move downward along the inner surface of the bracket 23. When the test column 26 contacts the test point on the board, the test operation can begin.
[0039] After the test is completed, the operator resets the test column 26 and releases the fixation of the board. Then, the operator starts the power motor 18, causing the rotating shaft 19 to drive the elliptical block 20 to rotate, so that the elliptical block 20 generates a thrust on the lifting block 17, pushing the lifting block 17 to drive the limiting block 15 to move upward along the inner surface of the limiting groove 14 and stretch the spring 16. As a result, the ejector rod 21 fixedly connected to the top of the lifting block 17 moves together, thereby lifting the board by the ejector rod 21, which is convenient for the operator to remove the board. Then, the operator continues to start the power motor 18. At this time, under the restoring action of the spring 16, the ejector rod 21 will return to its original position, and then the test of the next board can be started.
[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0041] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. Board and card fixing fixture, including support columns (1), characterized in that: A placing plate (2) is fixedly installed at the top end of the support column (1). On the left and right sides of the middle part of the top end of the placing plate (2), rectangular blocks (3) are respectively movably installed. The number of the rectangular blocks (3) is two. On the front and back sides of the opposite surfaces of the two rectangular blocks (3), second clamping rods (5) and first clamping rods (4) are respectively hinged. The bottom ends of the second clamping rods (5) and the first clamping rods (4) are both movably connected to the top end of the placing plate (2). The number of the second clamping rods (5) and the first clamping rods (4) is two. The two second clamping rods (5) and the first clamping rods (4) are hinged to each other. In the middle parts of the left and right sides of the placing plate (2), movable blocks (6) are respectively movably sleeved. The number of the movable blocks (6) is two. The top ends of the two movable blocks (6) are respectively fixedly connected to the bottom ends of the two rectangular blocks (3). The bottom ends of the two movable blocks (6) are respectively fixedly installed with moving blocks (7). The number of the moving blocks (7) is two. The top ends of the two moving blocks (7) are respectively movably connected to the bottom end of the placing plate (2). The opposite surfaces of the two moving blocks (7) are respectively hinged with inclined rods (8). The other ends of the inclined rods (8) are hinged with sliders (9). The outer surface of the slider (9) is movably connected to the outer surface of the placing plate (2). At the bottom of the middle part of the front end of the placing plate (2), a driving motor (10) is fixedly sleeved. The other end of the output shaft of the driving motor (10) is fixedly sleeved with a threaded rod (11). The middle part of the outer surface of the threaded rod (11) is threadedly sleeved with the inner surface of the slider (9).
2. The board card fixing fixture according to claim 1, wherein: A fixing frame (12) is fixedly installed at the middle part of the bottom end of the placing plate (2). At the bottom of the left end of the fixing frame (12), a fixing rod (13) is fixedly installed.
3. The board card fixing fixture according to claim 2, characterized in that: Limiting grooves (14) are respectively opened at the left and right ends of the fixing frame (12). In the middle part of the limiting grooves (14), limiting blocks (15) are movably sleeved. The number of the limiting blocks (15) is two and their shapes and sizes are the same.
4. The board fixing fixture according to claim 3, wherein: At the bottom ends of the two limiting blocks (15), springs (16) are respectively fixedly installed. The other ends of the springs (16) are fixedly connected to the bottom ends inside the limiting grooves (14). An elevating block (17) is fixedly installed between the two limiting blocks (15). The outer surface of the elevating block (17) is movably sleeved with the inner surface of the fixing frame (12).
5. The board card fixing fixture according to claim 2, wherein: At the right end of the fixing rod (13), a power motor (18) is fixedly installed. The other end of the output shaft of the power motor (18) is fixedly sleeved with a rotating shaft (19).
6. The board card fixing fixture according to claim 4, characterized in that: At the middle part of the bottom end of the elevating block (17), an elliptical block (20) is movably connected. The inner surface of the elliptical block (20) is fixedly sleeved with the outer surface of the rotating shaft (19). At the left and right sides of the top end of the elevating block (17), ejector rods (21) are respectively fixedly installed. The top ends of the ejector rods (21) penetrate through the placing plate (2) and extend to the top of the outer surface of the placing plate (2).
7. A test device, comprising a base (22) and the board fixing fixture according to any one of claims 1-6, characterized in that: The top end of the base (22) is fixedly connected to the bottom end of the support column (1). At the rear side of the middle part of the top end of the base (22), a bracket (23) is fixedly installed. In the middle of the inner top end of the bracket (23), a pneumatic cylinder (24) is fixedly installed. The bottom end of the pneumatic cylinder (24) is fixedly installed with a lifting plate (25). The outer surface of the lifting plate (25) is movably sleeved with the inner surface of the bracket (23). At the front side of the bottom end of the lifting plate (25), a test column (26) is fixedly installed.