USB plug and unplug test fixture

Abstract

The utility model relates to electronic equipment test technical field, and disclose a kind of USB plug test fixture, including base and fixedly installed on base for placing test piece's placement table, further include;Slidingly connected on base for fixing test piece's fixed platform;Mounting platform is slidingly connected on base, and mounting platform is provided with the limiting portion for fixing USB plug;Symmetrical mounting is positioned on the placement table Block, mounting platform is symmetrically installed with the buffer rod matched with positioning block, when the end of buffer rod and positioning block are in abutment, form buffer positioning area;The utility model can adapt to different models of USB plug, and can be clamped to USB plug by the clamping plate under the action of spring Preliminary clamping and position correction, cooperate with the movement of the abutting plate can adapt to different thicknesses of plug, collocation extension rod and the limiting plate of screw connection can be adjusted according to plug tail size, without overall replacement fixed component, improve adaptability, reduce equipment cost.

Description

Technical Field

[0001] This utility model relates to the field of electronic device testing technology, specifically a USB plug-in / plug-out testing fixture. Background Technology

[0002] USB plug-in / plug-out testing is a key hardware reliability verification method designed to evaluate the mechanical durability and electrical stability of USB interfaces and their connectors during repeated connection and disconnection processes. This test uses automated equipment to accurately simulate daily user scenarios, applying hundreds to tens of thousands of standard plug-in / plug-out cycles to the device under test or its ports. The core objective is to discover potential connector structural defects, metal contact wear, signal attenuation, or power interruption issues, ensuring that products maintain stable data transmission and power supply capabilities during long-term use, meeting industry standards and improving the end-user experience.

[0003] Before the test begins, engineers set key parameters according to the product specifications, including the number of insertions and removals, insertion and removal force, speed, travel depth, and insertion and removal angle. The device under test is precisely fixed in the special slot of the test fixture to ensure that the port position is strictly aligned with the movement trajectory of the test probe. After the test system is started, the drive mechanism of the fixture will repeatedly insert and remove the standard test cable from the USB port at a constant rate according to the preset program.

[0004] Existing technologies have certain problems. For example, the plug fixing structure of some devices has poor adaptability, and can only be tested for specific models of USB plugs. When changing the test object, the fixing parts need to be replaced as a whole, which is cumbersome and increases equipment costs. On the other hand, most fixtures have simple fixing methods for the devices under test, which are prone to displacement under high-frequency plugging and unplugging impacts, further aggravating test errors. These problems make it difficult to improve test efficiency and cannot meet the testing needs of diverse USB interfaces. Therefore, we urgently need a USB plugging and unplugging test fixture to solve the above problems. Utility Model Content

[0005] This utility model provides a USB insertion and removal test fixture, which solves the problems mentioned in the background art, such as the need to replace the entire fixing component, cumbersome operation, increased equipment cost, and displacement of the test piece under high-frequency insertion and removal impact.

[0006] This utility model provides the following technical solution: A USB plug-in / plug-out test fixture includes a base and a placement platform fixedly mounted on the base for placing test pieces. It also includes a fixing platform slidably connected to the base for fixing the test pieces; a mounting platform slidably connected to the base, and the mounting platform is provided with a limiting part for fixing a USB plug; and positioning blocks symmetrically mounted on the placement platform. Buffer rods matching the positioning blocks are symmetrically mounted on the mounting platform, and when the ends of the buffer rods abut against the positioning blocks, a buffer positioning area is formed.

[0007] As a preferred technical solution of this utility model, the limiting part includes crossbars symmetrically installed on the upper part of the mounting platform. Each of the two sets of crossbars is provided with a clamping plate. A spring is provided between the crossbar and the clamping plate. The two ends of the spring are respectively connected to the crossbar and the clamping plate. When the two sets of clamping plates abut against the USB plug, a correction zone is formed.

[0008] As a preferred technical solution of this utility model, the limiting part also includes uprights symmetrically installed on the mounting platform. The two sets of uprights are located outside the crossbar. One set of uprights is rotatably connected to a screw, and the screw is threadedly connected to a clamping plate for limiting. The other set of uprights is fixedly connected to a guide rod, and the end of the clamping plate is slidably connected to the guide rod. When the screw rotates, the clamping plate moves up and down along the axial path of the guide rod.

[0009] As a preferred technical solution of this utility model, an extension rod is detachably installed on the upper part of the abutment plate, and a limiting plate for support is threaded on the end of the extension rod. When the abutment plate abuts against the upper part of the USB plug, the limiting plate abuts against the tail of the USB plug and forms a limiting area.

[0010] As a preferred technical solution of this utility model, a linear guide rail is fixedly connected to the upper part of the base, and the mounting platform is fixedly installed on the output end of the linear guide rail. When the linear guide rail is working, the mounting platform moves along the length direction of the base.

[0011] As a preferred technical solution of this utility model, the upper part of the base is fixedly connected to a second linear guide rail coaxial with the linear guide rail, and the fixed platform is fixedly installed on the output end of the second linear guide rail. When the second linear guide rail is working, the fixed platform moves along the height direction of the base.

[0012] Compared with the prior art, this utility model provides a USB plug-in / plug-out testing fixture, which has the following advantages: 1. In this USB plug-in / plug-out test fixture, the limiting part can be adapted to different models of USB plugs. The clamping plate under the action of spring can initially clamp and correct the position of the USB plug. With the movement of the abutment plate, it can adapt to plugs of different thicknesses. With the extension rod and threaded connection of the limiting plate, it can be adjusted according to the size of the plug tail. There is no need to replace the entire fixing part, which improves adaptability and reduces equipment cost.

[0013] 2. In this USB insertion and removal test fixture, the test piece is fixed by the linear guide rail and the fixed stage. The linear guide rail can drive the fixed stage to adjust the fixing force according to the size of the test piece, so as to avoid displacement of the test piece under high-frequency insertion and removal impact and reduce test error.

[0014] 3. In this USB insertion and removal test fixture, the positioning block and buffer rod are designed so that when the mounting platform moves the USB plug to perform insertion and removal tests, the buffer rod and the positioning block can act as a buffer, reducing the impact force during the insertion and removal process, further ensuring the stability of the test piece and the USB plug, and improving the test accuracy.

[0015] The parts not covered in this device are the same as or can be implemented using existing technologies. This utility model can effectively fix USB plugs of different sizes without replacing the entire fixing parts, which improves adaptability and reduces equipment costs. At the same time, it can also reduce the displacement of the test piece under high-frequency plugging and unplugging impact. With the setting of the buffer positioning area, the impact force during the plugging and unplugging process is reduced, further ensuring the stability of the test piece and the USB plug and improving the test accuracy. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of a partial structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of a partial structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of a partial structure of the present invention. Figure 3 .

[0018] In the diagram: 1. Base; 2. Placement platform; 3. Fixing platform; 4. Mounting platform; 5. Positioning block; 6. Buffer rod; 7. Crossbar; 8. Clamping plate; 9. Spring; 10. Stand; 11. Screw; 12. Clamping plate; 13. Guide rod; 14. Extension rod; 15. Limiting plate; 16. Linear guide rail one; 17. Linear guide rail two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Reference Figures 1-4 A USB plug-in / plug-out test fixture includes a base 1 and a placement platform 2 fixedly mounted on the base 1 for placing test pieces. Here, the placement platform 2 is specifically used to place test pieces, providing a positioning reference for the test pieces, ensuring the consistency of the initial position of the test pieces during the test, and helping to improve the accuracy of the test results.

[0021] It also includes a fixed platform 3 that is slidably connected to the base 1 for fixing the test piece. The upper part of the base 1 is fixedly connected to a linear guide rail 17 that is coaxial with the linear guide rail 16. The fixed platform 3 is fixedly installed on the output end of the linear guide rail 17. When the linear guide rail 17 is working, the fixed platform 3 moves along the height direction of the base 1. Here, the fixing stage 3 can fix the test piece placed on the placement stage 2, preventing the test piece from shifting under high-frequency insertion and removal impact. Combined with the movement of the linear guide rail 17, the fixing force and position can be flexibly adjusted according to the size of the test piece, further enhancing the reliability of the test piece fixing and reducing the test error caused by the movement of the test piece.

[0022] Furthermore, the linear guide rail 217 is mainly used to drive the fixed platform 3 to move along the height direction of the base 1, and the attached... Figure 1 In the Y-axis direction, the position of the fixed stage 3 is adjusted according to the test piece to securely fix the test piece. A miniature linear guide, model MGN12C, can be used. This model of linear guide can meet the height adjustment requirements of the fixed stage 3 and ensure the reliability of the fixed stage 3 in fixing the test piece.

[0023] The mounting platform 4 is slidably connected to the base 1. A linear guide rail 16 is fixedly connected to the upper part of the base 1, and the mounting platform 4 is fixedly installed on the output end of the linear guide rail 16. When the linear guide rail 16 is working, the mounting platform 4 moves along the length direction of the base 1. Here, the mounting platform 4 provides a mounting carrier for fixing the USB plug. Its limiting part can securely fix different types of USB plugs. At the same time, the mounting platform 4 can move along the length direction of the base 1 via the linear guide rail 16, and the attached... Figure 1 In the X-axis direction, it drives the USB plug to connect with the test piece and complete the plug-in / plug-out test.

[0024] Furthermore, the linear guide rail 16 is a THK brand SR series linear guide rail, model SR15V. This model of linear guide rail has high rigidity and precision, which can meet the needs of high-frequency insertion and removal tests, and it runs smoothly, which can ensure the accuracy of the movement of the mounting platform 4 and meet the requirements of movement accuracy during the test.

[0025] The mounting platform 4 is provided with a limiting part for fixing the USB plug. The limiting part includes crossbars 7 symmetrically installed on the upper part of the mounting platform 4. Each set of crossbars 7 is provided with a clamping plate 8. A spring 9 is provided between the crossbars 7 and the clamping plate 8. The two ends of the spring 9 are respectively connected to the crossbars 7 and the clamping plate 8. When the two sets of clamping plates 8 abut against the USB plug, a correction zone is formed. Here, the clamping plate 8, under the action of the spring 9, can initially clamp USB plugs of different widths and correct the position of the USB plugs to ensure the alignment of the USB plugs with the test piece interface, thereby improving the accuracy of plug installation.

[0026] Furthermore, the two sets of springs 9 are made of 65Mn spring steel, which has good elasticity and toughness and can maintain stable performance in long-term high-frequency extension and retraction. It is not easy to undergo plastic deformation. The wire diameter is 1mm. This wire diameter range can provide sufficient clamping force without being too stiff and causing excessive compression on the USB plug, thus protecting the plug from damage. The outer diameter is set to 10mm to ensure the installation stability of spring 9 between the crossbar 7 and the clamping plate 8 and to prevent spring 9 from tilting during extension and retraction.

[0027] The limiting part also includes uprights 10 symmetrically installed on the mounting platform 4. The two sets of uprights 10 are located outside the crossbar 7. One set of uprights 10 is rotatably connected to a screw 11, and a clamping plate 12 for limiting is threaded onto the screw 11. The other set of uprights 10 is fixedly connected to a guide rod 13, and the end of the clamping plate 12 is slidably connected to the guide rod 13. When the screw 11 rotates, the clamping plate 12 moves up and down along the axial path of the guide rod 13. An extension rod 14 is detachably installed on the upper part of the clamping plate 12, and a limiting plate 15 for support is threaded onto the end of the extension rod 14. When the clamping plate 12 abuts against the upper part of the USB plug, the limiting plate 15 abuts against the tail of the USB plug and forms a limiting area.

[0028] Here, when the screw 11 rotates clockwise, the clamping plate 12 moves downward to limit the USB plug. When the screw 11 rotates counterclockwise, the clamping plate 12 moves upward to disengage from the USB plug, thus accommodating USB plugs of different thicknesses and further securing the USB plug, improving the plug's stability. The guide rod 13 guides the movement of the clamping plate 12, ensuring the smoothness and accuracy of the clamping plate 12's up-and-down movement and preventing the clamping plate 12 from shifting during movement.

[0029] Furthermore, the extension rod 14 is detachably installed and connected to the clamping plate 12 by bolts, which facilitates replacement or disassembly according to actual testing needs. Its end is U-shaped, and multiple sets of threaded holes are opened on the open end of the U-shape. The limiting plate 15 is installed by bolts to the corresponding threaded holes, so that the position of the limiting plate 15 can be flexibly adjusted according to the size of the USB plug tail. When the clamping plate 12 abuts against the upper part of the USB plug, the limiting plate 15 can precisely abut against the tail of the USB plug and form a limiting area, effectively preventing the USB plug from moving during the insertion and removal process, further enhancing the stability of the plug fixation. At the same time, by selecting different threaded holes to install the limiting plate, it can be adapted to plugs with different tail sizes, greatly improving the versatility of the limiting part.

[0030] Positioning blocks 5 are symmetrically installed on the placement platform 2. Buffer rods 6 that match the positioning blocks 5 are symmetrically installed on the mounting platform 4. When the end of the buffer rod 6 abuts against the positioning block 5, a buffer positioning area is formed.

[0031] Here, when the mounting platform 4 drives the USB plug to perform the insertion and removal test, the end of the buffer rod 6 abuts against the positioning block 5, which can effectively buffer the impact force during the insertion and removal process, avoid damage to the test piece or USB plug due to excessive impact, and at the same time ensure the stability of the insertion and removal process and improve the accuracy of the test.

[0032] In this invention, during use, the test piece is placed on the placement platform 2, and the fixed platform 3 is moved by the linear guide rail 17 to fix the test piece. The USB plug is placed between the two sets of clamping plates 8, and the spring 9 pushes the clamping plates 8 to initially clamp and correct the position of the plug. At this time, the screw 11 is rotated to move the abutment plate 12 downward and abut against the upper part of the USB plug to achieve further fixation. According to the size of the plug tail, a suitable extension rod 14 is installed and the position of the limiting plate 15 is adjusted so that the limiting plate 15 abuts against the plug tail to complete the fixation of the USB plug. The linear guide rail 16 is activated to move the USB plug on the mounting platform 4 and connect it to the test piece, thereby conducting continuous insertion and removal tests. During the insertion and removal process, the buffer rod 6 will contact the positioning block 5 to reduce the impact force during the insertion and removal process and ensure the stability of the test.

[0033] Components not described in detail in this article are existing technologies.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A USB plug-in / plug-out test fixture, comprising a base (1) and a placement platform (2) fixedly mounted on the base (1) for placing test pieces, characterized in that, Also includes; A mounting platform (3) is slidably connected to the base (1) for fixing the test piece; A mounting platform (4) is slidably connected to the base (1), and a limiting part for fixing the USB plug is provided on the mounting platform (4); Positioning blocks (5) are symmetrically installed on the placement platform (2). Buffer rods (6) that match the positioning blocks (5) are symmetrically installed on the mounting platform (4). When the end of the buffer rod (6) abuts against the positioning block (5), a buffer positioning area is formed.

2. The USB insertion / removal test fixture according to claim 1, characterized in that, The limiting part includes crossbars (7) symmetrically installed on the upper part of the mounting platform (4). Each of the two sets of crossbars (7) is provided with a clamping plate (8). A spring (9) is provided between the crossbars (7) and the clamping plate (8). The two ends of the spring (9) are connected to the crossbars (7) and the clamping plate (8) respectively. When the two sets of clamping plates (8) come into contact with the USB plug, a correction zone is formed.

3. The USB insertion / removal test fixture according to claim 2, characterized in that, The limiting part also includes uprights (10) symmetrically installed on the mounting platform (4). The two sets of uprights (10) are located outside the crossbar (7). One set of uprights (10) is rotatably connected to a screw (11), and a clamping plate (12) for limiting is threaded onto the screw (11). The other set of uprights (10) is fixedly connected to a guide rod (13), and the end of the clamping plate (12) is slidably connected to the guide rod (13). When the screw (11) rotates, the clamping plate (12) moves up and down along the axial path of the guide rod (13).

4. A USB insertion / removal test fixture according to claim 3, characterized in that, An extension rod (14) is detachably installed on the upper part of the abutment plate (12), and a limiting plate (15) for support is threaded on the end of the extension rod (14). When the abutment plate (12) abuts against the upper part of the USB plug, the limiting plate (15) abuts against the tail of the USB plug and forms a limiting area.

5. A USB insertion / removal test fixture according to claim 1, characterized in that, The upper part of the base (1) is fixedly connected to a linear guide rail (16), and the mounting platform (4) is fixedly installed on the output end of the linear guide rail (16). When the linear guide rail (16) is working, the mounting platform (4) moves along the length direction of the base (1).

6. A USB insertion / removal test fixture according to claim 1, characterized in that, The upper part of the base (1) is fixedly connected to a linear guide rail two (17) coaxial with the linear guide rail one (16). The fixed platform (3) is fixedly installed on the output end of the linear guide rail two (17). When the linear guide rail two (17) is working, the fixed platform (3) moves along the height direction of the base (1).

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