Mezz interface auto plug module with high security

Abstract

This invention relates to a highly secure automatic insertion and removal module for a mezz interface. The lifting mechanism of this module includes a motor, a lead screw, and a connecting seat. The motor is fixedly mounted on the upper end of a support frame. The upper end of the lead screw is fixedly connected to the motor's output shaft, and the lower end of the lead screw passes through the support frame and connects to the upper end of the connecting seat. One side of the connecting seat is slidably connected to the inner wall of one side of the support frame. A card-turning mechanism is located below the pressure feedback mechanism, and the circuit board on the card-turning mechanism is inserted into the mezz interface to be tested. During the insertion process, the pressure feedback mechanism provides real-time feedback on the pressure received by the card-turning mechanism, while the photoelectric limit mechanism monitors the descent stroke of the connecting seat. The electronic drive mechanism controls the start and stop of the motor based on the information from the pressure feedback mechanism and the photoelectric limit mechanism, achieving automated insertion, high installation accuracy, and significantly improved testing efficiency.

Description

Technical Field

[0001] This invention relates to the field of PBA testing equipment, and in particular to a highly secure mezz interface automatic plug-in / plug-out module. Background Technology

[0002] GPU computing refers to a method of high-performance computing using Graphics Processing Units (GPUs). While typically designed to accelerate graphics rendering and processing, GPUs are also widely used for computationally intensive tasks such as scientific computing, machine learning, deep learning, data analysis, and cryptography due to their powerful parallel computing capabilities. Compared to Central Processing Units (CPUs), GPUs have the advantage of a large number of processing units and memory bandwidth, allowing them to process large amounts of data simultaneously at a much faster speed. Especially in tasks requiring extensive parallel computing, such as large-scale matrix operations and neural network training, GPUs significantly outperform CPUs.

[0003] Specialized chips can achieve higher computing power and energy efficiency in specific scenarios, but they struggle to adapt to the rapid increase in algorithm types and iteration speeds. Therefore, more versatile GPGPUs have always been the mainstay of AI chips. Given Nvidia's annual revenue of tens of billions of dollars and its ranking among the top ten globally in market capitalization, the future prospects for GPU testing are promising as it addresses the new demands on computing infrastructure from generative AI and large models. GPU backplane testing is also expected to experience explosive growth, and fully automated mezz interface testing provides a new testing solution for GPU backplanes. Currently, the industry uses manual installation methods for GPU backplane testing. Existing GPU backplane mezz interfaces require a high level of skill in correct installation, demanding precise placement, resulting in low first-pass yield and low testing efficiency.

[0004] Therefore, a highly secure mezz interface automatic plug-in / plug-out module is needed to solve the above problems. Summary of the Invention

[0005] This invention relates to a highly secure automatic mezz interface plug-in / plug-out module. This module uses an electronically driven mechanism to control a lifting mechanism, which lowers the circuit board in the card-switching mechanism to connect with the detection-equipped mezz interface. During the connection process, a pressure feedback mechanism provides real-time feedback on the pressure received by the card-switching mechanism, while a photoelectric limit mechanism monitors the descent of the connector. This achieves automated connection, high installation accuracy, and significantly improves testing efficiency, solving the problem of low testing efficiency caused by manual installation in existing GPU backplane testing solutions.

[0006] To address the above problems, the present invention provides a highly secure mezz interface automatic plug-in / plug-out module, comprising:

[0007] Support frame;

[0008] An electronic drive mechanism is disposed on one side of the support frame;

[0009] A lifting mechanism includes a motor, a lead screw, and a connecting seat. The motor is fixedly mounted on the upper end of the support frame. The upper end of the lead screw is fixedly connected to the output shaft of the motor. The lower end of the lead screw passes through the support frame and is connected to the upper end of the connecting seat. One side of the connecting seat is slidably connected to the inner wall of one side of the support frame.

[0010] A pressure feedback mechanism is fixedly connected to the lower end of the connecting seat and electrically connected to the electronic drive mechanism for feedback of pressing pressure.

[0011] A photoelectric limiting mechanism is disposed on the inner sidewall of the other side of the support frame, and is used to obtain the descent stroke of the connecting seat; the photoelectric limiting mechanism is electrically connected to the electronic drive mechanism; and,

[0012] A card-switching mechanism is located below the pressure feedback mechanism. A circuit board is provided on the card-switching mechanism. The circuit board is plugged into and connected to the mezz interface to be tested. The circuit board is used to perform open and short circuit tests on the mezz interface to be tested.

[0013] The electronic drive mechanism controls the start and stop of the motor based on information fed back from the pressure feedback mechanism and the photoelectric limiting mechanism.

[0014] Furthermore, the connecting seat includes a first connecting plate, a sliding plate, and a second connecting plate. The first connecting plate and the second connecting plate are spaced apart vertically. The sliding plate is vertically oriented, with its upper end fixedly connected to one end of the first connecting plate and its lower end fixedly connected to one end of the second connecting plate, reducing weight and avoiding misalignment, thus saving costs. A guide rail is provided on the inner side of the support frame, and the outer side of the sliding plate is slidably connected to the guide rail, improving stability during lifting and lowering movements.

[0015] Furthermore, the photoelectric limiting mechanism includes a first sensing block, a second sensing block, and a positioning seat. The first and second sensing blocks are both disposed on the same inner sidewall of the support frame, and are staggered vertically to improve the accuracy of sensing and recognition. The first sensing block has an open first through slot at its end away from the support frame, and the second sensing block has an open second through slot at its end away from the support frame. One end of the positioning seat is fixedly disposed on the lower surface of the first connecting plate, and the other end of the positioning seat protrudes from the end of the first connecting plate, resulting in a compact structure and space saving. When the other end of the positioning seat is located in the first through slot, the motor starts, and the connecting seat begins to move downwards. When the other end of the positioning seat is located in the second through slot, the motor stops working, the connecting seat stops moving, and the circuit board is plugged into the mezz interface to be detected.

[0016] Furthermore, the first sensing block and the second sensing block are offset in the horizontal direction. The positioning base includes a first positioning piece, a second positioning piece, and a connecting piece. The connecting piece is fixedly disposed on the lower surface of the first connecting plate. One end of the first positioning piece is fixedly connected to one end of the connecting piece, and the other end of the first positioning piece is used to pass through the first through slot. One end of the second positioning piece is fixedly connected to the other end of the connecting piece, and the other end of the second positioning piece is used to pass through the second through slot, thereby improving the sensing accuracy and data transmission efficiency.

[0017] Furthermore, the first positioning piece and the second positioning piece have the same structure and are both sheet-like. The side with the largest area of ​​both the first and second positioning pieces is vertically oriented, resulting in a compact structure and cost savings.

[0018] Furthermore, the inner wall of the support frame is vertically provided with a first adjustment groove and a second adjustment groove. The photoelectric limiting mechanism also includes a first adjustment rod and a second adjustment rod. The first adjustment rod is vertically disposed in the first adjustment groove, and its lower end is fixedly connected to the first sensing block for adjusting the height of the first sensing block. The second adjustment rod is vertically disposed in the second adjustment groove, and its lower end is fixedly connected to the second sensing block for adjusting the height of the second sensing block, which can improve the compatibility of the equipment.

[0019] Furthermore, the first sensing block and the second sensing block have the same structure. The first sensing block includes a sensing part and a fixing part. One end of the sensing part is connected to the lower end of the fixing part, and the fixing part is screwed to the support frame for easy installation and removal. The other end of the sensing part is provided with the first through groove. A guide block for guidance is provided on the groove wall on the side of the first through groove opposite to the opening. Both the upper and lower sides of the guide block are set as inclined surfaces. The guide block is set with a trapezoidal structure. The area of ​​the guide block facing the positioning seat is smaller than the area of ​​the guide block facing the support frame, which improves the stability of the positioning seat's lifting and lowering movement in the first and second through grooves and can effectively prevent displacement.

[0020] Furthermore, the highly secure mezz interface automatic plug-in / plug-out module also includes a pressing mechanism. The pressing mechanism includes a mounting base, the upper surface of which is fixedly connected to the lower surface of the pressure feedback mechanism. The lower surface of the mounting base is screwed to the rotating clamping mechanism, which can increase the contact area of ​​pressing and ensure uniform force distribution, thereby improving the stability of pressing.

[0021] Furthermore, the pressing mechanism also includes two positioning posts, one on each side of the mounting base. The positioning posts are vertically oriented, and each post has a through-hole at its center. The highly secure mezz interface automatic insertion / removal module also includes an automatic alignment mechanism. This mechanism comprises two positioning rods and two springs, with one spring mounted on each positioning rod. Each movable slot contains one positioning rod and one spring, improving pressing accuracy and ensuring precise and secure pressing of the mezz interface to the test product. The lower end of each positioning rod is lower than the lower surface of the card mechanism.

[0022] Furthermore, the two positioning posts are integrally formed with the mounting base, which improves installation efficiency and positioning guidance stability.

[0023] This invention, employing the aforementioned highly secure automatic mezz interface plug-in / plug-out module, offers the following advantages compared to existing technologies: This invention relates to a highly secure automatic mezz interface plug-in / plug-out module, comprising a support frame, an electronic drive mechanism, a lifting mechanism, a pressure feedback mechanism, a photoelectric limiting mechanism, and a card-switching mechanism. The electronic drive mechanism is located on one side of the support frame and controls the motor's start and stop based on information from the pressure feedback mechanism and the photoelectric limiting mechanism. The lifting mechanism includes a motor, a lead screw, and a connecting seat. The motor is fixedly mounted on the upper end of the support frame, the upper end of the lead screw is fixedly connected to the motor's output shaft, and the lower end of the lead screw passes through the support frame and connects to the upper end of the connecting seat. One side of the connecting seat is slidably connected to the inner wall of one side of the support frame. The pressure feedback mechanism is fixedly connected to the lower end of the connecting seat and electrically connected to the electronic drive mechanism, used to provide feedback on pressing pressure. The photoelectric limiting mechanism is located on the inner wall of the other side of the support frame and is used to obtain the lowering stroke of the connecting seat; the photoelectric limiting mechanism is electrically connected to the electronic drive mechanism. The card-switching mechanism is located below the pressure feedback mechanism, and a circuit board is mounted on it. This circuit board connects to the mezz interface under test and is used for open / short circuit testing. This highly secure automatic mezz interface insertion / removal module uses an electronically driven mechanism to control a lifting mechanism, which lowers the circuit board in the card-switching mechanism to connect with the mezz interface under test. During the insertion process, the pressure feedback mechanism provides real-time feedback on the pressure received by the card-switching mechanism, while a photoelectric limit mechanism monitors the descent of the connector. This achieves automated insertion, high installation accuracy, and significantly improves testing efficiency, solving the problem of low testing efficiency caused by manual installation in existing GPU backplane testing solutions. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of the present invention.

[0025] Figure 1 This is a schematic diagram of an embodiment of the highly secure mezz interface automatic plug-in / plug-out module of the present invention.

[0026] Figure 2 This is a side view of an embodiment of the highly secure mezz interface automatic plug-in / plug-out module of the present invention.

[0027] Figure 3 This is a front view of an embodiment of the touch screen debugging mechanism of the high-security mezz interface automatic plug-in / plug-out module of the present invention.

[0028] Figure 4This is a front view of an embodiment of the highly secure mezz interface automatic plug-in / plug-out module of the present invention.

[0029] Figure 5 A schematic diagram of another perspective of an embodiment of the highly secure mezz interface automatic plug-in / plug-out module of the present invention.

[0030] Figure 6 This is a schematic diagram of an embodiment of the photoelectric limiting mechanism for the high-security mezz interface automatic plug-in / plug-out module of the present invention.

[0031] Figure 7 This is a schematic diagram of an embodiment of the photoelectric limiting mechanism of the high-security mezz interface automatic plug-in / plug-out module of the present invention.

[0032] Figure 8 This is a rear view of an embodiment of the pressure feedback mechanism of the high-safety mezz interface automatic plug-in / plug-out module of the present invention.

[0033] Figure 9 This is a schematic diagram of an embodiment of the pressing mechanism and card-switching mechanism of the high-security mezz interface automatic plug-in / plug-out module of the present invention.

[0034] Figure 10 This is a side view of an embodiment of the touch screen debugging mechanism of the high-security mezz interface automatic plug-in / plug-out module of the present invention.

[0035] Figure 11 This is a schematic diagram of the learning mode process of an embodiment of the highly secure mezz interface automatic plug-in / plug-out module of the present invention.

[0036] Figure 12 This is a schematic diagram illustrating the working mode of an embodiment of the highly secure mezz interface automatic plug-in / plug-out module of the present invention.

[0037] In the diagram: 10. High-security mezz interface automatic plug-in / unplug module; 20. Support frame; 21. Guide rail; 22. First adjustment slot; 23. Second adjustment slot; 30. Electronic drive mechanism; 40. Lifting mechanism; 41. Motor; 42. Lead screw; 43. Connecting seat; 431. First connecting plate; 432. Slide plate; 433. Second connecting plate; 50. Photoelectric limiting mechanism; 51. First sensing block; 511. First through slot; 512. Sensing part; 513. Fixing part; 514. Guide block; 52. 521. Second sensing block; 53. Second through slot; 54. Positioning seat; 55. First positioning piece; 56. Second positioning piece; 57. Connecting piece; 58. First adjusting rod; 59. Second adjusting rod; 60. Pressure feedback mechanism; 61. Receiving block; 62. Pressure sensor; 70. Pressing mechanism; 71. Mounting seat; 72. Positioning column; 80. Automatic alignment mechanism; 81. Positioning rod; 82. Spring; 90. Turning mechanism; 100. Touch screen debugging mechanism; 101. Frame seat; 102. Display screen. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The directional terms mentioned in this invention, such as "up," "down," "front," "back," and "left,"

[0040] The terms "right," "inner," "outer," "side," "top," and "bottom" are used only to refer to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding the present invention, and not for limiting the present invention.

[0041] In the diagram, units with similar structures are represented by the same labels.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3In this embodiment, the highly secure automatic mezz interface plug-in / plug-out module 10 is designed to ensure the stability of the mezz interface during fully automated pressing tests. It is primarily used in the GPU chip backplane and server backplane testing industry, in fully automated fixtures and equipment for GPU chip backplanes and server backplanes. This highly secure automatic mezz interface plug-in / plug-out module 10 includes a support frame 20, an electronic drive mechanism 30, a lifting mechanism 40, a photoelectric limiting mechanism 50, a pressure feedback mechanism 60, a pressing mechanism 70, an automatic alignment mechanism 80, a card-switching mechanism 90, and a touchscreen debugging mechanism 100. The electronic drive mechanism 30 is located on one side of the support frame 20, and the lifting mechanism 40 is vertically mounted on the support frame 20. The photoelectric limiting mechanism 50 is located below the electronic drive mechanism 30 and on the inner side wall of one side of the support frame 20, used to obtain the descent stroke of the connector 43. The photoelectric limiting mechanism 50 is electrically connected to the electronic drive mechanism 30. The pressure feedback mechanism 60 is fixedly connected to the lower end of the connecting seat 43, and the pressure feedback mechanism 60 is electrically connected to the electronic drive mechanism 30 for feedback of pressing pressure. The pressing mechanism 70 is equipped with an automatic alignment mechanism 80, which aligns with the corresponding position on the base. The pressing mechanism 70 accurately contacts and presses the adapter PCBA on the adapter mechanism 90 with the mezzmezz interface on the base.

[0043] In this embodiment, please refer to Figure 4 , Figure 5 The lifting mechanism 40 includes a motor 41, a lead screw 42, and a connecting seat 43. The motor 41 is fixedly mounted on the upper end of the support frame 20. The upper end of the lead screw is fixedly connected to the output shaft of the motor 41, and the lower end of the lead screw passes through the support frame 20 and is connected to the upper end of the connecting seat 43. One side of the connecting seat 43 is slidably connected to the inner wall of one side of the support frame 20.

[0044] The connecting base 43 includes a first connecting plate 431, a sliding plate 432, and a second connecting plate 433. The first connecting plate 431 and the second connecting plate 433 are arranged vertically at intervals. The sliding plate 432 is vertically arranged, with its upper end fixedly connected to one end of the first connecting plate 431 and its lower end fixedly connected to one end of the second connecting plate 433. The area enclosed by the first connecting plate 431, the sliding plate 432, and the second connecting plate 433 is hollow, which can reduce weight and avoid misalignment, saving costs. A guide rail 21 is provided on the inner side of the support frame 20, and the outer side of the sliding plate 432 is slidably connected to the guide rail 21 to improve stability during lifting and lowering.

[0045] In this embodiment, please refer to Figure 4 , Figure 6 , Figure 7 The photoelectric limiting mechanism 50 is mounted on the inner wall of the other side of the support frame 20 and is used to obtain the descent stroke of the connecting seat 43. The photoelectric limiting mechanism 50 is electrically connected to the electronic drive mechanism 30.

[0046] The photoelectric limiting mechanism 50 includes a first sensing block 51, a second sensing block 52, a positioning seat 53, a first adjusting rod 54, and a second adjusting rod 55. The first sensing block 51 and the second sensing block 52 are both mounted on the same inner sidewall of the support frame 20, and are staggered vertically to improve the accuracy of sensing and recognition. The first sensing block 51 has an open first through groove 511 at its end furthest from the support frame 20, and the second sensing block 52 has an open second through groove 521 at its end furthest from the support frame 20. One end of the positioning seat 53 is fixed to the lower surface of the first connecting plate 431, and the other end of the positioning seat 53 protrudes from the end of the first connecting plate 431, resulting in a compact structure and space saving. When the other end of the positioning seat 53 is located within the first through groove 511, the motor 41 starts, and the connecting seat 43 begins to move downwards. When the other end of the positioning seat 53 is located within the second through groove 521, the motor 41 stops working, the connecting seat 43 stops moving, and the circuit board is plugged into the mezz interface to be detected.

[0047] The first sensing block 51 and the second sensing block 52 are offset in the horizontal direction. The positioning base 53 includes a first positioning piece 531, a second positioning piece 532, and a connecting piece 533. The connecting piece 533 is fixedly disposed on the lower surface of the first connecting plate 431. One end of the first positioning piece 531 is fixedly connected to one end of the connecting piece 533, and the other end of the first positioning piece 531 is used to pass through the first through slot 511. One end of the second positioning piece 532 is fixedly connected to the other end of the connecting piece 533, and the other end of the second positioning piece 532 is used to pass through the second through slot 521, thereby improving the sensing accuracy and data transmission efficiency.

[0048] The first positioning piece 531 and the second positioning piece 532 have the same structure and are both sheet-like. The side with the largest area of ​​both the first positioning piece 531 and the second positioning piece 532 is vertically positioned, resulting in a compact structure and cost savings.

[0049] To improve the efficiency of initially adjusting the positions of the first sensing block 51 and the second sensing block 52, a first adjustment groove 22 and a second adjustment groove 23 are vertically provided on the inner side wall of the support frame 20. A first adjustment rod 54 is vertically disposed within the first adjustment groove 22, with its lower end fixedly connected to the first sensing block 51, and is used to adjust the height of the first sensing block 51. A second adjustment rod 55 is vertically disposed within the second adjustment groove 23, with its lower end fixedly connected to the second sensing block 52, and is used to adjust the height of the second sensing block 52. This improves the compatibility of the device and the efficiency during initial learning.

[0050] The first sensing block 51 and the second sensing block 52 have the same structure. The first sensing block 51 includes a sensing part 512 and a fixing part 513. One end of the sensing part 512 is connected to the lower end of the fixing part 513, and the fixing part 513 is screwed to the support frame 20 for easy installation and removal. The other end of the sensing part 512 is provided with a first through groove 511. A guide block 514 for guiding is provided on the groove wall of the first through groove 511 opposite to the opening. The upper and lower sides of the guide block 514 are both set as inclined surfaces. The guide block 514 is set with a trapezoidal structure. The area of ​​the side of the guide block 514 facing the positioning seat 53 is smaller than the area of ​​the side of the guide block 514 facing the support frame 20, which improves the stability of the positioning seat 53 in the lifting and lowering movement in the first through groove 511 and the second through groove 521, and can effectively prevent the positioning seat 53 from shifting.

[0051] Please refer to Figure 5 , Figure 8 The pressure feedback mechanism 60 is fixedly connected to the lower end of the connecting seat 43, and is electrically connected to the electronic drive mechanism 30 for feedback of pressing pressure. A receiving block 61 and a pressure sensor 62 are provided in the pressure feedback mechanism 60. An inner hole is provided in the middle of the receiving block 61, and the pressure sensor 62 is disposed in the inner hole. The upper surface of the receiving block 61 is screwed to the second connecting plate 433, and the lower surface of the receiving block 61 is fixedly connected to the upper surface of the mounting seat 71.

[0052] In this embodiment, please refer to Figure 5 , Figure 9 The pressing mechanism 70 includes a mounting base 71 and two positioning posts 72. The upper surface of the mounting base 71 is fixedly connected to the lower surface of the receiving block 61 of the pressure feedback mechanism 60, and the lower surface of the mounting base 71 is screwed to the rotating clamping mechanism 90. This increases the contact area during pressing, resulting in more uniform force distribution and improved pressing stability. Both the receiving block 61 and the mounting base 71 are designed as block-shaped structures. The cross-sectional area of ​​the receiving block 61 is larger than that of the second connecting plate 433, but smaller than that of the mounting base 71, improving force transmission and reducing costs.

[0053] A positioning post 72 is provided on both sides of the mounting base 71. Specifically, the two positioning posts 72 are integrally formed with the mounting base 71, which improves the installation efficiency and the stability of the positioning guide. The positioning posts 72 are vertically arranged, and each positioning post 72 has a vertically penetrating movable groove in its center.

[0054] In this embodiment, please refer to Figure 5 , Figure 9The automatic alignment mechanism 80 includes two positioning rods 81 and two springs 82, with a spring 82 mounted on each positioning rod 81. Each movable slot contains one positioning rod 81 and one spring 82, which improves the pressing accuracy and ensures precise and secure pressing of the mezz interface with the test product. The lower end of the positioning rod 81 is lower than the lower surface of the card mechanism 90.

[0055] In this embodiment, please refer to Figure 9 The card-switching mechanism 90 is located below the pressure feedback mechanism 60. A circuit board is mounted on the card-switching mechanism 90 and is connected to the mezz interface to be tested. The circuit board is used to perform open and short circuit tests on the mezz interface. The electronic drive mechanism 30 controls the start and stop of the motor based on information fed back from the pressure feedback mechanism 60 and the photoelectric limit mechanism 50.

[0056] In this embodiment, please refer to Figure 3 , Figure 10 The touchscreen debugging mechanism 100 includes a frame base 101 and a display screen 102. A slot is provided on one side of the frame base 101, and the display screen 102 is fitted into the slot. The side of the frame base 101 where the display screen 102 is mounted has a length of 130mm, a width of 95mm, and a thickness of 57.26mm.

[0057] The electronic drive mechanism 30 is located on one side of the support frame 20 and controls the speed of the motor 41 through a circuit to ensure stable operation. The lifting mechanism 40, driven by the motor 41, propels the lead screw 42 in linear motion, ensuring operational accuracy and stability. The pressure feedback mechanism 60 provides feedback and reads the pressure feedback value generated when the pressing mechanism 70 contacts, providing accurate and high-precision feedback. The support frame 20 bears the torque and lateral support force generated during the movement of the motor 41, ensuring the stability of the pressing mechanism 70 during downward pressure. The photoelectric limit mechanism 50 senses the maximum stroke of the lifting mechanism 40 during operation and feeds this information back to the electronic drive mechanism 30 for controlling the extreme positions of the lifting mechanism 40 and the pressing mechanism 70. The automatic alignment mechanism 80 employs a floating structure, eliminating machining tolerances and mezz module patch tolerances, ensuring accurate pressing of the adapter component onto the mezz interface, guaranteeing the safety and stability of the pressing process. The pressing mechanism 70 provides a fixed position for the adapter card and ensures smooth pressing and minimal deformation of the adapter card mechanism 90, guaranteeing the contact of the adapter card mechanism 90. The adapter card mechanism 90 uses a self-made adapter PCBA, which can perform open and short circuit tests on the GPU backplane, ensuring higher test coverage. The touch screen debugging mechanism 100 displays the pressing control and data, providing a more intuitive graphical display. The interaction and cooperation between the various mechanisms solve the defects of manual insertion and removal testing of MEZZ modules. It ensures the accuracy of the pressing and alignment of the MEZZ module during testing, provides a good testing environment, guarantees GPU operation during testing, improves the first pass rate of the GPU backplane, and saves testing time on the equipment and reduces the workload of personnel.

[0058] The touchscreen debugging mechanism 100 sets the required pressure. Through the photoelectric limit mechanism 50 and the lifting mechanism 40, and the control of the entire device, it ensures that the pressing mechanism 70 can accurately press the mezz module. The pressure feedback mechanism 60 displays the real-time operation of the entire module, ensuring that the pressing pressure of the mezz module is consistent with the design pressure of the module. The electronic drive mechanism 30 records the current position, thereby ensuring the safety of the GPU backplane connector during testing. When the mezz module is automatically debugged, the card-turning mechanism 90 and the base of the touchscreen debugging mechanism 100 are pressed together after ensuring accurate contact through the automatic alignment mechanism 80. The pressure feedback mechanism 60 feeds the pressure back to the touchscreen debugging mechanism 100 and promptly feeds it back to the electronic drive mechanism 30. The accuracy of the pressure feedback mechanism 60 is ±1%. When the pressure feedback mechanism 60 reaches the preset value, the lifting mechanism 40 stops pressing down and simultaneously checks whether the preset values ​​of the motor 41 and the lead screw are met. If the preset value is met, the pressing down stops; if the preset value is not met, the lifting mechanism 40 fine-tunes to reach the preset pressure value to ensure stability. During retesting, the lifting mechanism 40 and photoelectric limit mechanism 50 can press down quickly and accurately, improving testing efficiency. Throughout the process, the pressure feedback mechanism 60 is in operation, constantly monitoring the contact pressure value and adjusting the pressure value in real time to ensure the safety and stability of the pressing.

[0059] The lifting mechanism 40 of the highly secure mezz interface automatic insertion / removal module 10 is driven by a motor 41 and a lead screw 42. Closed-loop control of the lifting mechanism 40 and the pressing mechanism 70 is achieved through a pressure feedback mechanism 60 and an electronic drive mechanism 30. During uniform downward pressing, the pressing mechanism 70, assisted by an automatic alignment mechanism 80, accurately and safely presses the mezz interface onto the test product. During pressing, the electronic drive mechanism 30 can control the lifting mechanism 40 with an accuracy of 0.1 kg. It automatically returns to its original position if the pressure at the pressing position is abnormal, ensuring safety. In the pressing state, the lifting mechanism 40 can maintain a stable pressure of 50 kg, ensuring stable contact and guaranteeing the stability and safety of the mezz module pressing test. This prevents product damage caused by factors such as deformation of the mezz interface due to pressure changes.

[0060] Please refer to Figure 11 , Figure 12 The specific testing steps are as follows.

[0061] First, after the equipment is powered on, the electronic drive mechanism 30 drives the lifting mechanism 40 to the preset initial position, and the touch screen debugging mechanism 100 displays that all data are normal, including the photoelectric limit mechanism 50 and the pressure feedback mechanism 60, which are without abnormalities.

[0062] Second, set the desired pressure value on the display screen and click Start.

[0063] Third, the electronic drive mechanism 30 controls the movement of the lifting mechanism 40. When the card-turning mechanism 90 contacts the mezz interface, the automatic alignment mechanism 80 automatically aligns itself. The pressure feedback mechanism 60 provides real-time feedback on the pressure value and transmits the pressure data. The electronic drive mechanism 30 compares and analyzes the data. When the preset pressure value is met, the lifting mechanism 40 stops working, and the electronic drive mechanism 30 records the precise position where the pressure value is met. The above process represents the initial learning function.

[0064] Fourth, during normal testing, the electronic drive mechanism 30 controls the lifting mechanism 40 to drive the card-turning mechanism 90 to accelerate. When the module contacts the test mezz interface, the automatic mechanism performs an automatic comparison, and the pressure feedback mechanism 60 decelerates when it reads the feedback force to ensure the safety of the mezz module contact. When the preset pressure value is reached, the rigidity of the pressing mechanism 70 and the real-time adjustment of the lifting mechanism 40 by the electronic drive mechanism 30 ensure that the card-turning structure 90 is pressed in place, thereby ensuring the contact and safety of the entire module and achieving the stability of the entire test.

[0065] In summary: the automatic alignment mechanism 80 is the alignment unit, the lifting mechanism 40 is the execution unit, the electronic drive mechanism 30 is the control unit, and the pressure feedback mechanism 60 is the detection mechanism. Through the cooperation between the mechanisms and the joint action of the software, the fully automatic control of this mezz is achieved.

[0066] During the setup of this module, the software can control the pressure value of the lifting mechanism 40 through the pressure feedback mechanism 60 and the electronic drive mechanism 30 in the early stage, reducing the workload of testers. In the middle, it can quickly and automatically lower the pressure, helping users speed up the testing process. This invention effectively promotes domestic GPU backplane testing, provides strong support for the development of the GPU backplane testing equipment industry, and provides customers with a new GPU backplane testing solution, greatly meeting the testing requirements of industry customers. The entire process improves the testing stability of the GPU backplane, significantly enhancing the stability of GPU information processing and program execution. Data recording throughout the customer's testing process provides data support for comprehensive analysis of product anomalies, offering technical support for the stability testing of GPU backplanes and improving testing efficiency and safety.

[0067] In this embodiment, the present invention relates to a highly secure automatic insertion and removal module for a mezz interface. This highly secure automatic insertion and removal module includes a support frame, an electronic drive mechanism, a lifting mechanism, a pressure feedback mechanism, a photoelectric limiting mechanism, and a card-switching mechanism. The electronic drive mechanism is located on one side of the support frame and controls the start and stop of the motor based on information fed back from the pressure feedback mechanism and the photoelectric limiting mechanism. The lifting mechanism includes a motor, a lead screw, and a connecting seat. The motor is fixedly mounted on the upper end of the support frame, the upper end of the lead screw is fixedly connected to the output shaft of the motor, and the lower end of the lead screw passes through the support frame and connects to the upper end of the connecting seat. One side of the connecting seat is slidably connected to the inner wall of one side of the support frame. The pressure feedback mechanism is fixedly connected to the lower end of the connecting seat and is electrically connected to the electronic drive mechanism, used to provide feedback on the pressing pressure. The photoelectric limiting mechanism is located on the inner wall of the other side of the support frame and is used to obtain the descent stroke of the connecting seat; the photoelectric limiting mechanism is electrically connected to the electronic drive mechanism. The card-switching mechanism is located below the pressure feedback mechanism, and a circuit board is mounted on it. This circuit board connects to the mezz interface under test and is used for open / short circuit testing. This highly secure automatic mezz interface insertion / removal module uses an electronically driven mechanism to control a lifting mechanism, which lowers the circuit board in the card-switching mechanism to connect with the mezz interface under test. During the insertion process, the pressure feedback mechanism provides real-time feedback on the pressure received by the card-switching mechanism, while a photoelectric limit mechanism monitors the descent of the connector. This achieves automated insertion, high installation accuracy, and significantly improves testing efficiency, solving the problem of low testing efficiency caused by manual installation in existing GPU backplane testing solutions.

[0068] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A mezz interface automatic plug-in module with high security, characterized in that, include: Support frame; An electronic drive mechanism is disposed on one side of the support frame; A lifting mechanism includes a motor, a lead screw, and a connecting seat. The motor is fixedly mounted on the upper end of the support frame. The upper end of the lead screw is fixedly connected to the output shaft of the motor. The lower end of the lead screw passes through the support frame and is connected to the upper end of the connecting seat. One side of the connecting seat is slidably connected to the inner wall of one side of the support frame. A pressure feedback mechanism is fixedly connected to the lower end of the connecting seat and electrically connected to the electronic drive mechanism for feedback of pressing pressure. A photoelectric limiting mechanism is disposed on the inner sidewall of the other side of the support frame, and is used to obtain the descent stroke of the connecting seat; the photoelectric limiting mechanism is electrically connected to the electronic drive mechanism; and, A card-switching mechanism is located below the pressure feedback mechanism. A circuit board is provided on the card-switching mechanism. The circuit board is plugged into and connected to the mezz interface to be tested. The circuit board is used to perform open and short circuit tests on the mezz interface to be tested. The electronic drive mechanism controls the start and stop of the motor based on information fed back from the pressure feedback mechanism and the photoelectric limiting mechanism. The connecting seat includes a first connecting plate, a sliding plate, and a second connecting plate; the first connecting plate and the second connecting plate are spaced apart vertically; the sliding plate is vertically arranged, with its upper end fixedly connected to one end of the first connecting plate and its lower end fixedly connected to one end of the second connecting plate; a guide rail is provided on the inner side of the support frame, and the outer side of the sliding plate is slidably connected to the guide rail; The photoelectric limiting mechanism includes a first sensing block, a second sensing block, and a positioning seat. The first sensing block and the second sensing block are both disposed on the same inner sidewall of the support frame, and the first sensing block and the second sensing block are vertically offset. The first sensing block has an open first through slot at the end away from the support frame, and the second sensing block has an open second through slot at the end away from the support frame. One end of the positioning seat is fixedly disposed on the lower surface of the first connecting plate, and the other end of the positioning seat protrudes from the end of the first connecting plate. When the other end of the positioning seat is located in the first through slot, the motor starts, and the connecting seat begins to move downward. When the other end of the positioning seat is located in the second through slot, the motor stops working, the connecting seat stops moving, and the circuit board is plugged into the mezz interface to be detected.

2. The highly secure mezz interface automatic plug-in / plug-out module according to claim 1, characterized in that, The first sensing block and the second sensing block are offset in the horizontal direction; the positioning base includes a first positioning piece, a second positioning piece and a connecting piece, the connecting piece is fixedly disposed on the lower surface of the first connecting plate, one end of the first positioning piece is fixedly connected to one end of the connecting piece, and the other end of the first positioning piece is used to pass through the first through groove; One end of the second positioning piece is fixedly connected to the other end of the connecting piece, and the other end of the second positioning piece is used to pass through the second through groove.

3. The highly secure mezz interface automatic plug-in / plug-out module according to claim 2, characterized in that, The first positioning piece and the second positioning piece have the same structure and are both sheet-like; the side with the largest area of ​​both the first positioning piece and the second positioning piece are vertically oriented.

4. The highly secure mezz interface automatic plug-in / plug-out module according to claim 2, characterized in that, The inner wall of the support frame is vertically provided with a first adjustment groove and a second adjustment groove; the photoelectric limiting mechanism also includes a first adjustment rod and a second adjustment rod; the first adjustment rod is vertically arranged in the first adjustment groove, and the lower end of the first adjustment rod is fixedly connected to the first sensing block for adjusting the height of the first sensing block; the second adjustment rod is vertically arranged in the second adjustment groove, and the lower end of the second adjustment rod is fixedly connected to the second sensing block for adjusting the height of the second sensing block.

5. The highly secure mezz interface automatic plug-in / plug-out module according to claim 1, characterized in that, The first sensing block and the second sensing block have the same structure. The first sensing block includes a sensing part and a fixing part. One end of the sensing part is connected to the lower end of the fixing part, and the fixing part is screwed to the support frame. The other end of the sensing part is provided with a first through groove. A guide block for guiding is provided on the groove wall on the side of the first through groove opposite to the opening. The upper and lower sides of the guide block are both set as inclined surfaces. The guide block is set as a trapezoidal structure. The area of ​​the side of the guide block facing the positioning seat is smaller than the area of ​​the side of the guide block facing the support frame.

6. The highly secure mezz interface automatic plug-in / plug-out module according to claim 1, characterized in that, The highly secure mezz interface automatic plug-in / plug-out module also includes a pressing mechanism, which includes a mounting base. The upper surface of the mounting base is fixedly connected to the lower surface of the pressure feedback mechanism, and the lower surface of the mounting base is screwed to the card-turning mechanism.

7. The high-security mezz interface automatic plug-in / plug-out module according to claim 6, characterized in that, The pressing mechanism also includes two positioning posts, one on each side of the mounting base. The positioning posts are vertically oriented, and each positioning post has a vertically penetrating movable groove at its center. The high-safety mezz interface automatic insertion and removal module also includes an automatic alignment mechanism, which includes two positioning rods and two springs. Each positioning rod is fitted with a spring. Each movable groove contains a positioning rod and a spring. The lower end of the positioning rod is lower than the lower surface of the card-turning mechanism.

8. The highly secure mezz interface automatic plug-in / plug-out module according to claim 7, characterized in that, The two positioning posts are integrally formed with the mounting base.

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