Auxiliary dismounting device

Abstract

The utility model discloses a kind of auxiliary dismounting devices, including isolation plate, mobile installation is in the test plate, a connecting hole is opened in the isolation plate, the isolation plate is mobile installation the mainboard to be measured on, LVDS plug is inserted after passing the connecting hole LVDS interface;A pressing arm, rotation is installed on the test machine table and is located above the isolation plate, the pressing arm is provided with multiple pressing columns, and the pressing column is used to press and fix the mainboard to be measured to the test plate;And a reset plate, mobile installation is in the test machine table bottom, the reset plate is equipped with multiple ejection columns, and the ejection column is used to eject the mainboard to be measured from the test plate. Through such mode, it is convenient to dismount, and the structural integrity of LVDS interface is effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of communication testing technology, and in particular to an auxiliary disassembly device. Background Technology

[0002] LVDS (Low Voltage Differential Signaling) is a low-voltage differential signaling technology interface that is increasingly widely used in the field of communications. With the application of LVDS technology, it is essential to test its functionality to ensure normal signal transmission.

[0003] Currently, to ensure the stability of high-speed signal transmission, LVDS interfaces typically employ high-precision metal contacts and a tight-fitting structure. This results in significant external force being applied during insertion and removal operations in actual testing, generating substantial stress near the LVDS interface and posing a risk of damaging the motherboard equipped with the LVDS interface under test. Furthermore, due to the large number of densely packed components on the motherboard, operators are prone to accidentally touching components during insertion and removal, causing some components to malfunction and severely impacting the motherboard's usability. Therefore, the difficulty of LVDS functional testing has become a pressing issue that needs to be addressed. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary disassembly device that facilitates disassembly and effectively protects the structural integrity of the LVDS interface.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An auxiliary disassembly device is applied to a testing machine. A test board is mounted and fixed on the testing machine. The test board has an LVDS interface and is used to perform functional testing on a motherboard under test. The motherboard under test has an LVDS connector that matches the LVDS interface. The auxiliary disassembly device includes: an isolation plate movably mounted on the test board, with a connection hole on the isolation plate for movably mounting the motherboard under test, and the LVDS connector passing through the connection hole and inserted into the LVDS interface; a pressing arm rotatably mounted on the testing machine and located above the isolation plate, the pressing arm having multiple pressing posts for pressing and fixing the motherboard under test to the test board; and a reset plate movably mounted on the bottom of the testing machine, the reset plate having multiple ejection posts for ejecting the motherboard under test from the test board.

[0007] Preferably, it further includes a reset lever, which is movably mounted on the test platform and located below the reset plate. The reset lever is provided with a lifting block, which is abutted against the reset plate.

[0008] Preferably, the bottom of the testing machine is provided with a limiting frame, the limiting frame has a limiting opening, one end of the reset lever is movably mounted on the testing machine, and the other end passes through the limiting opening to limit the range of motion of the reset lever.

[0009] Preferably, the lifting blocks are symmetrically arranged on the reset lever, and the top of the lifting blocks has an arc-shaped portion.

[0010] Preferably, a plurality of springs are installed between the reset plate and the bottom of the testing machine, the springs are positioned close to the ejector post, and the reset plate is also provided with spring mounting holes for mounting the springs.

[0011] Preferably, the testing machine platform is provided with a first through hole, the testing board is provided with a second through hole corresponding to the first through hole, the isolation plate is provided with a third through hole corresponding to the second through hole, and the ejector post passes through the first through hole, the second through hole and the third through hole in sequence and then ejects the motherboard under test from the testing board upward.

[0012] Preferably, the partition plate is provided with abutting boss near the third through hole, the abutting boss being configured to abut against the ejector column when the ejector column moves upward.

[0013] Preferably, limiting blocks are provided on both sides of the pressing arm.

[0014] Preferably, arc-shaped grooves are provided on both outer walls of the isolation plate, and the arc-shaped grooves are recessed towards the center of the isolation plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the auxiliary disassembly device avoids contact with densely packed component areas by setting up the isolation plate, the uniform fixation of the pressing arm reduces the stress during installation, and the structure of the reset plate and the ejector column converts manual insertion and extraction into mechanical ejection, effectively reducing the insertion and extraction force. At the same time, the cooperation between the ejector rod and multiple through holes ensures the smoothness of the operation. From the structural design, it solves the installation and disassembly problem in LVDS testing and effectively addresses the shortcomings of the background technology. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the auxiliary disassembly device;

[0017] Figure 2 Exploded view of the structure of the disassembly aid device;

[0018] Figure 3 A side view of the auxiliary disassembly device;

[0019] Figure 4 A partial structural diagram of the disassembly aid device. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] See Figures 1-4This utility model discloses an auxiliary disassembly device applied to a test bench 100. A test board 200 is fixedly mounted on the table surface of the test bench 100. The test board 200 is provided with an LVDS interface for performing functional tests on a motherboard 300 placed on the test board 200. The LVDS connector 301 on the motherboard 300 needs to be matched and connected with the LVDS interface 201 of the test board 200. The auxiliary disassembly device includes an isolation plate 400, a pressing arm 500, and a reset plate 600. The isolation plate 400 is movably mounted on the test board 200. Since the location of the LVDS interface 201 on the test board 200 is for the installation of the CPU motherboard, the area near the LVDS interface 201 on the test board 200 can be installed onto the isolation plate 400. Moreover, the test board 200 is provided with screw holes. The isolation plate 400 is installed on the test board 200 by screwing it into the screw holes. Next, a connection hole 401 is provided in the middle of the isolation plate 400. When the motherboard under test 300 is placed on the isolation plate 400, the LVDS connector 301 extends downward through the connection hole 401 and is inserted into the LVDS interface 201 of the test board 200. To facilitate the operator in handling the motherboard under test 300, arc-shaped grooves 403 recessed towards the center are provided on both outer walls of the isolation plate 400. These grooves allow fingers to apply force, preventing contact with the dense components on the motherboard when handling the motherboard under test 300.

[0025] The pressing arm 500 can be rotatably mounted above the test platform 100, located above the isolation plate 400. Limiting blocks 502 can be installed at both ends of the pressing arm 500 to limit its rotation angle, ensuring stability and accuracy during pressing and preventing excessive pressure that could damage the motherboard 300 under test. Multiple pressing posts 501 are distributed on the lower surface of the pressing arm 500, their positions corresponding to preset fixing points on the motherboard 300 under test. After the motherboard 300 under test is placed on the isolation plate 400, the operator can rotate the pressing arm 500 to evenly press the pressing posts 501 onto the motherboard surface, fixing it to the test plate 200. This prevents displacement due to vibration during testing, and the uniform pressure distribution reduces the risk of stress concentration on the motherboard 300 under test.

[0026] A reset plate 600 is movably mounted on the bottom of the testing machine 100. A spring 801 connects the reset plate 600 to the testing machine 100. The spring 801 is vertically mounted between the reset plate 600 and the bottom of the machine, providing upward pressing force and downward reset force. Multiple ejector posts 601 are distributed on the upper surface of the reset plate 600. The spring 801 is positioned close to the ejector posts 601. The ejector posts 601 pass sequentially through the bottom of the testing machine 100, the testing plate 200, and the isolation plate 400. The arrangement of the ejector posts 601 ensures that the reset plate 600 remains stable during vertical movement, preventing deviation. The testing machine 100 is provided with a first through hole 103, the testing board 200 is provided with a second through hole 203 corresponding to the first through hole 103, and the isolation plate 400 is provided with a third through hole 404 corresponding to the second through hole 203. The ejector post 601 passes through the first through hole 103, the second through hole 203 and the third through hole 404 in sequence and then ejects the motherboard 300 under test from the testing board 200 upward. In other words, the positions of these ejector pins 601 correspond one-to-one with the first through hole 103 on the test platform 100, the second through hole 203 on the test board 200, and the third through hole 404 on the isolation plate 400. The first through hole 103, the second through hole 203, and the third through hole 404 are vertical through holes. When it is necessary to disassemble the motherboard 300 under test, the ejector pins 601 pass through the first through hole 103, the second through hole 203, and the third through hole 404 in sequence, pushing upwards the bottom of the isolation plate 400 containing the motherboard, thus separating it from the LVDS interface 201. Among them, the isolation plate 400 is provided with an abutment boss 405 near the third through hole 404. The abutment boss 405 is used to abut against the ejector pins 601 when the ejector pins 601 move upwards. In other words, when the motherboard under test 300 needs to be ejected, the ejection force of the ejector post 601 will act on the abutment boss 405 of the isolation plate 400, thereby preventing the ejector post 601 from directly acting on the motherboard under test 300 and protecting the structural integrity of the motherboard under test 300. Secondly, the reset plate 600 is also provided with a spring 801 mounting hole for mounting the spring 801. That is, one end of the spring 801 is set in the spring 801 mounting hole, and the other end is abutted against the bottom of the testing machine 100. Moreover, in order to match the setting of the ejector rod, the reset plate 600 is also provided with a circular groove 602, and the bottom of the ejector rod is fixed in the groove 602.

[0027] In a preferred embodiment, to drive the reset plate 600, the device also includes a reset pull rod 700, which is movably mounted on the bottom of the testing machine 100, located below the reset plate 600. A lifting block 701 is symmetrically arranged on the reset pull rod 700, the top of which is arc-shaped and can abut against the lower surface of the reset plate 600. A limit frame 101 is fixed to the bottom of the testing machine 100, and a limit opening 102 is provided on the limit frame 101. One end of the reset pull rod 700 is mounted on the machine base via a pin, and the other end passes through the limit opening 102, thereby limiting the range of motion of the pull rod and preventing excessive pulling that could cause structural damage. When the operator pulls the reset lever 700, the lifting block 701 pushes the reset plate 600 upward, compressing the spring 801 and simultaneously raising the ejector post 601, pushing the main board out of the test board 200. At this time, the separation force between the LVDS connector 301 and the interface is evenly applied by the ejector post 601, avoiding excessive stress during manual insertion and removal and reducing the risk of damage to the LVDS interface 201. After disassembly, the reset lever 700 is released, the spring 801 pushes the reset plate 600 to reset, and the ejector post 601 falls back to its initial position, awaiting the next operation.

[0028] It should be noted that the working principle of this auxiliary disassembly device is as follows: When the motherboard 300 to be tested is installed, the operator first installs the isolation plate 400 onto the test board 200 and fixes it with screws. Then, the motherboard is placed on the isolation plate 400, aligning the LVDS plug 301 with the connection hole 401 of the isolation plate 400 and inserting it downwards into the LVDS interface 201 of the test board 200. Next, the pressing arm 500 is rotated to cover the top of the motherboard, and the pressing post 501 on the pressing arm 500 presses down on the preset fixing point of the motherboard, thus fixing the motherboard evenly on the test board 200 through the lever principle. When disassembling after the test, the operator pulls the reset lever 700. The lever moves horizontally through the limiting opening 102 of the limiting bracket 101, causing the lifting block 701 on it to move synchronously. After the arc-shaped top of the lifting block 701 contacts the lower surface of the reset plate 600, the horizontal pulling force is converted into an upward thrust due to the guiding effect of the arc structure, pushing the reset plate 600 to move upwards against the resistance of the spring 801. The ejector pin 601 on the reset plate 600 then passes through the second through hole 203 of the test plate 200 and the third through hole 404 of the isolation plate 400, precisely pushing the bottom of the motherboard.

[0029] The vertical ejection force of the ejector post 601 is applied evenly along the axial direction of the LVDS plug 301, ensuring a smooth separation of the plug from the interface and avoiding lateral pulling forces during manual insertion and removal. Furthermore, the ejector post 601, through its engagement with multiple through holes, ensures no deviation during the ejection process, while the spring 801 provides a restoring force after the ejection action is completed. When the reset lever 700 is released, the lifting block 701 separates from the reset plate 600, the spring 801 pushes the reset plate 600 back down, and the ejector post 601 retracts to its initial position, allowing the motherboard 300 under test to be easily removed from the isolation plate 400. Throughout the process, the isolation plate 400 achieves mechanical isolation between the motherboard and the test board 200 through the through-hole design, avoiding component interference; the pressing arm 500 achieves uniform fixation of the motherboard through multi-point pressing, reducing installation stress; the mechanical ejection structure of the reset plate 600 and the ejection post 601 transforms the instantaneous impact force of traditional manual insertion and removal into a progressive ejection force, keeping the separation force of the LVDS interface 201 within a safe range, thereby solving the problems of excessive insertion and removal force and stress damage.

[0030] In summary, this auxiliary disassembly device avoids contact with densely packed component areas through the isolation plate 400, reduces stress during installation by uniformly fixing the pressing arm 500, and converts manual insertion and removal into mechanical ejection by the structure of the reset plate 600 and the ejector post 601, effectively reducing insertion and removal force. At the same time, the cooperation between the ejector post and multiple through holes ensures the smoothness of the operation. From a structural design perspective, it solves the installation and disassembly problems in LVDS testing and effectively addresses the shortcomings of the background technology.

[0031] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An auxiliary disassembly device, applied on a test bench (100), wherein a test board (200) is mounted and fixed on the test bench (100), the test board (200) is provided with an LVDS interface (201), and the test board (200) is used to perform functional testing on a motherboard (300) under test, wherein the motherboard (300) under test is provided with an LVDS plug (301) that matches and connects to the LVDS interface (201), characterized in that, The auxiliary disassembly device includes: An isolation plate (400) is movably mounted on the test board (200). A connection hole (401) is provided on the isolation plate (400). The motherboard under test (300) is movably mounted on the isolation plate (400). The LVDS plug (301) passes through the connection hole (401) and is inserted into the LVDS interface (201). A pressing arm (500) is rotatably mounted on the test platform (100) and located above the isolation plate (400). The pressing arm (500) is provided with a plurality of pressing posts (501), which are used to press and fix the motherboard (300) to be tested onto the test board (200); and A reset plate (600) is movably installed at the bottom of the test machine (100). The reset plate (600) is provided with a plurality of ejection posts (601), which are used to eject the motherboard (300) under test from the test board (200).

2. The auxiliary disassembly device according to claim 1, characterized in that, It also includes a reset lever (700), which is movably mounted on the test machine (100) and located below the reset plate (600). The reset lever (700) is provided with a lifting block (701), which abuts against the reset plate (600).

3. The auxiliary disassembly device according to claim 2, characterized in that, The test bench (100) is provided with a limiting frame (101) at the bottom. A limiting opening (102) is provided on the limiting frame (101). One end of the reset lever (700) is movably installed on the test bench (100), and the other end passes through the limiting opening (102) to limit the range of motion of the reset lever (700).

4. The auxiliary disassembly device according to claim 2, characterized in that, The lifting block (701) is symmetrically arranged on the reset lever (700), and the top of the lifting block (701) has an arc-shaped part.

5. The auxiliary disassembly device according to claim 1, characterized in that, A plurality of springs (801) are installed between the reset plate (600) and the bottom of the test machine (100). The springs (801) are located near the ejector post (601), and the reset plate (600) is also provided with spring mounting holes (602) for mounting the springs.

6. The auxiliary disassembly device according to claim 5, characterized in that, The test bench (100) is provided with a first through hole (103), the test plate (200) is provided with a second through hole (203) corresponding to the first through hole (103), the isolation plate (400) is provided with a third through hole (404) corresponding to the second through hole (203), and the ejector post (601) passes through the first through hole (103), the second through hole (203) and the third through hole (404) in sequence and then ejects the motherboard (300) under test from the test plate (200) upward.

7. The auxiliary disassembly device according to claim 6, characterized in that, The isolation plate (400) is provided with abutting boss (405) near the third through hole (404). The abutting boss (405) is used to abut against the ejector column (601) when the ejector column (601) moves upward.

8. The auxiliary disassembly device according to claim 1, characterized in that, Limiting blocks (502) are provided on both sides of the pressing arm (500).

9. The auxiliary disassembly device according to claim 1, characterized in that, Arc-shaped grooves (403) are provided on both outer walls of the isolation plate (400), and the arc-shaped grooves (403) are recessed towards the center of the isolation plate (400).

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