Computer graphics card plugging test device

Abstract

The invention discloses a computer graphics card plugging test device which comprises a test board, a test board is arranged above the test board, a test positioning groove is formed in the test board, the test positioning groove is arranged in a rotating mode, a horizontal rotary cylinder is arranged above the test board, and the horizontal rotary cylinder is arranged above the test board. And a plurality of graphics card positioning grooves which are uniformly distributed in the circumferential direction are rotationally connected to the periphery of the horizontal rotary cylinder. According to the invention, the horizontal rotary cylinder is arranged, then the periphery of the horizontal rotary cylinder is provided with the plurality of video card positioning grooves, the test plate is arranged below the horizontal rotary cylinder, the test plate is provided with the test positioning grooves, and the video card positioning grooves on the horizontal rotary cylinder are close to and far away from the test positioning grooves in turn when the horizontal rotary cylinder rotates; wherein the display card positioning groove and the test positioning groove are arranged in an elastic rotation manner, so that the display card in the display card positioning groove and the expansion groove in the test positioning groove have a side stress type dynamic plugging effect when in butt joint, the actual plugging action can be accurately simulated, and the durability data of the display card can be further accurate.

Description

Technical Field

[0001] The invention relates to the technical field of computer graphics cards, and in particular to a computer graphics card plug-in and pull-out test device. Background Art

[0002] As people's demands for computer performance become more diverse, assembling computers has become a hot trend, and some design work pays special attention to the performance requirements of graphics cards. Graphics cards are processors inserted into the expansion slot on the motherboard, which are used to convert the display signals sent by the host to the monitor into general electrical signals. After the computer graphics card is produced, it needs to be tested for performance. Generally, plug-in and pull-out tests are performed using plug-in and pull-out test devices to test the actual usability of the graphics card and the slot, as well as its durability.

[0003] At present, a utility model with publication number CN219573475U proposes a computer graphics card plug-in and pull-out test equipment, including a chassis, a ventilation window, a workbench, a supporting tripod, a controller and a first electric push rod. A calibration device is arranged on the left and right sides of the working panel, and a plug-in and pull-out detection device is arranged in the middle of the working panel. The second electric push rods on both sides of the graphics card are displaced to the same position, and the position of the graphics card is corrected with the cooperation of a slider in the plug-in and pull-out detection device, which saves the manual correction process, speeds up work efficiency, and realizes the plug-in and pull-out action of the graphics card through the up and down reciprocating motion of the first electric push rod, which plays a role in clamping and fixing the graphics card, facilitates subsequent work, and effectively saves manpower. The invention patent application with publication number CN113125942A proposes a computer graphics card plug-in test device and its use method, including: a base, a lateral adjustment device is provided in the inner cavity of the base, a hollow channel is provided on the upper surface of the base, the lateral adjustment device includes a longitudinally placed support column, the top of the support column penetrates the hollow channel and is fixedly connected to a second side plate, a first side plate matched with the second side plate is fixed at one end of the top of the base; a longitudinal adjustment device is installed on the inner side of the second side plate. Through the lateral adjustment device and the longitudinal adjustment device, graphics cards of different sizes can be fixed, and the stability of the device can be improved, the plug-in simulation effect can be improved, and the operation is convenient.

[0004] However, the above-mentioned prior arts still have the following common defects: 1. The testing method is aligned plugging and unplugging, but in actual use, it is difficult to ensure that the graphics card and the expansion slot are aligned for plugging and unplugging. Usually, there is a tilted plugging and unplugging state, and the tilt angle is usually inconsistent. Therefore, the aligned plugging and unplugging testing method is difficult to accurately obtain the durability of the graphics card; 2. Since the graphics card is plugged and unplugged many times and at a high frequency, the wear of the expansion slot is accelerated, and the expansion slot structures in the above-mentioned prior arts have the defect of poor switching convenience.

[0005] To this end, the present invention provides a computer graphics card plug-in and pull-out test device. Summary of the invention

[0006] The purpose of the present invention is to provide a computer graphics card plug-in and pull-out test device in order to solve the problem mentioned in the background technology.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A computer graphics card plug-in and pull-out test device comprises a test bench, a test board is arranged above the test bench, a test positioning slot is arranged on the test board, and the test positioning slot is rotatably arranged; a horizontal rotating cylinder is arranged above the test board, and the outer circumference of the horizontal rotating cylinder is rotatably connected with a plurality of graphics card positioning slots uniformly distributed in the circumferential direction; the rotation axes of the graphics card positioning slot, the test positioning slot and the horizontal rotating cylinder are parallel; an upper reversing control mechanism is arranged on the test bench, and the upper reversing control mechanism is used to control the synchronous and unidirectional rotation of the graphics card positioning slots uniformly distributed in the circumferential direction, and when the graphics card positioning slot is pushed by an external force, it will generate an elastic resistance; a lower reversing control mechanism is arranged on the test board, and the lower reversing control mechanism is used to control the rotation of the test positioning slot, and when the test positioning slot is pushed by an external force, it will generate an elastic resistance; during the rotation of the horizontal rotating cylinder, the state when the test positioning slot and the graphics card positioning slot opening are relative to each other is the test calibration state.

[0009] As a further description of the above technical solution:

[0010] The upper reversing control mechanism includes a connecting frame and an upper elastic telescopic pull rod. One end of the connecting frame is rotatably connected to the positions on the horizontal rotating cylinder at both ends of the graphics card positioning groove. The other end of the connecting frame is hingedly connected to one end of the graphics card positioning groove located in the horizontal rotating cylinder through the upper elastic telescopic pull rod. When the connecting frame swings, the notch direction of the graphics card positioning groove changes.

[0011] As a further description of the above technical solution:

[0012] The upper reversing control mechanism includes an adjusting sleeve. A coaxial transmission shaft is arranged in the middle of the horizontal rotary drum. The adjusting sleeve is arranged on the transmission shaft and is rotatably fitted. The outer peripheral wall of the adjusting sleeve is welded with circumferentially evenly distributed lever arms. The free end of the lever arm is rotatably and slidably fitted with one side of the connecting frame.

[0013] As a further description of the above technical solution:

[0014] A locking bolt is screwed through the outer circumferential wall of the adjusting sleeve, and a limiting groove matched with the locking bolt is formed on the outer circumferential wall of the transmission shaft.

[0015] As a further description of the above technical solution:

[0016] Upper positioning sleeves located on both sides of the graphics card positioning groove are welded on the cylinder wall of the horizontal rotating cylinder. Suspension tubes rotatably connected to the upper positioning sleeves are welded on both sides of the graphics card positioning groove. An upper transmission screw is sleeved and screwed in the suspension tube. One end of the upper transmission screw is rotatably connected to an upper clamping plate located in the graphics card positioning groove.

[0017] As a further description of the above technical solution:

[0018] The lower reversing control mechanism includes a lower elastic telescopic pull rod, a lead screw and a traction slider. The lead screw is rotatably connected to the bottom of the test plate, the traction slider is slidably connected to the bottom of the test plate and is screwed together with the lead screw, and the top of the traction slider is hingedly connected to the bottom of the test positioning groove through the lower elastic telescopic pull rod.

[0019] As a further description of the above technical solution:

[0020] The two ends of the test positioning groove are welded with lower positioning sleeves rotatably connected to the test plate, and a lower transmission screw is sleeved and screwed in the lower positioning sleeve, and one end of the lower transmission screw is rotatably connected to a lower clamping plate located in the test positioning groove.

[0021] As a further description of the above technical solution:

[0022] The number of the test positioning grooves is at least two and they are arranged and distributed along the length direction of the test plate. The test plate and the test table are horizontally slidably matched and the sliding direction is perpendicular to the axis of the horizontal rotary drum.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] 1. In the present invention, a horizontal rotating drum is provided, and then a plurality of graphics card positioning grooves are provided on the outer circumference of the horizontal rotating drum, a test board is provided below the horizontal rotating drum, and a test positioning groove is provided on the test board. When the horizontal rotating drum rotates, the graphics card positioning grooves thereon will alternately approach and move away from the test positioning grooves, wherein the graphics card positioning grooves and the test positioning grooves are both elastically rotatably provided. This provision enables the graphics card in the graphics card positioning groove and the expansion slot in the test positioning groove to have a side stress-type dynamic plug-in and pull-out effect when docking, and can accurately simulate the actual plug-in and pull-out action, thereby accurately measuring the durability data of the graphics card.

[0025] 2. In the present invention, an upper reversing control mechanism and a lower reversing control mechanism are provided, and the upper reversing control mechanism and the lower reversing control mechanism have the function of changing the opening direction of the test positioning groove and the graphics card positioning groove, and then the side stress direction of the graphics card can be changed by changing the rotation direction of the horizontal rotary drum, so that the graphics card can perform a bidirectional side stress plug-in test, and the switching operation of this bidirectional test is more convenient.

[0026] 3. In the present invention, a row of test positioning slots is arranged on the test board, and the test board has the function of sliding horizontally. When the test board slides horizontally, different test positioning slots and the graphics card to be tested can be quickly replaced for plug-in and pull-out testing, which has the advantage of faster replacement of expansion slots. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a computer graphics card plug-in and pull-out test device proposed by the present invention;

[0028] Figure 2 for Figure 1 The main view;

[0029] Figure 3 This is a structural schematic diagram of an upper switching control mechanism of a computer graphics card plug-in and pull-out test device proposed by the present invention;

[0030] Figure 4 for Figure 1 The enlarged schematic diagram of the part "a" in the middle;

[0031] Figure 5 This is a cross-sectional view of the adjustment sleeve and the transmission shaft of a computer graphics card plug-in and pull-out test device proposed by the present invention;

[0032] Figure 6 A cross-sectional view of the test positioning slot and the test board of a computer graphics card plug-in and pull-out test device proposed by the present invention;

[0033] Figure 7 The present invention provides a front view of the cooperation between a horizontal rotary drum and a test board of a computer graphics card plug-in and pull-out test device.

[0034] Legend:

[0035] 1. Test bench; 2. Test board; 3. Test positioning groove; 31. Lower positioning sleeve; 311. Lower transmission screw; 3111. Lower clamping plate; 4. Horizontal rotary drum; 41. Transmission shaft; 411. Limiting groove; 42. Upper positioning sleeve; 5. Graphic card positioning groove; 51. Suspension tube; 511. Upper transmission screw; 5111. Upper clamping plate; 6. Upper reversing control mechanism; 61. Connecting frame; 62. Upper elastic telescopic rod; 63. Adjusting sleeve; 631. Driving arm; 632. Locking bolt; 7. Lower reversing control mechanism; 71. Lower elastic telescopic rod; 72. Lead screw; 73. Traction slider. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] See also Figure 1-7 A computer graphics card plug-in test device includes a test bench 1, two vertical plates are welded on the top of the test bench 1, a test board 2 is arranged above the test bench 1, the test board 2 is located between the two vertical plates, and the vertical plates play the role of supporting the test board 2, and a test positioning groove 3 is arranged on the test board 2. The test positioning groove 3 is a rectangular box body mechanism, which is used to place an expansion slot for testing. The test positioning groove 3 is a rotation setting, wherein a notch for accommodating the test positioning groove 3 is opened on the test board 2, and the above rotation can change the opening direction of the test positioning groove 3.

[0039] A horizontal rotating drum 4 is arranged above the test board 2. The horizontal rotating drum 4 is a cylindrical structure. The outer circumference of the horizontal rotating drum 4 is rotatably connected to a plurality of circumferentially evenly distributed graphics card positioning grooves 5. The graphics card positioning grooves 5 are also rectangular box bodies. The graphics card positioning grooves 5 are used to place the graphics cards to be tested. When the horizontal rotating drum 4 rotates, the graphics card positioning grooves 5 thereon will follow the movement, and a plurality of graphics card positioning grooves 5 will take turns approaching and moving away from the test positioning grooves 3 below. The approaching and moving away movements of the graphics card positioning grooves 5 and the test positioning grooves 3 in the present technical solution can realize the side stress plug-in and pull-out test of the graphics card and the expansion slot.

[0040] Specifically, the rotation axes of the graphics card positioning slot 5, the test positioning slot 3 and the horizontal rotating drum 4 are parallel, and an upper reversing control mechanism 6 is arranged on the test bench 1, and the upper reversing control mechanism 6 is used to control the synchronous and unidirectional rotation of the graphics card positioning slots 5 that are evenly distributed circumferentially. The graphics card positioning slot 5 rotates to a radially inclined state relative to the horizontal rotating drum 4 to be ready for plugging, and when the graphics card positioning slot 5 is pushed by an external force to swing, it will generate an elastic resistance, and this elastic resistance is the thrust that drives the graphics card positioning slot 5 to reset. The test board 2 is provided with a lower switching control mechanism 7, which is used to control the rotation of the test positioning slot 3. When the test positioning slot 3 is pushed by external force, it will generate an elastic resistance. This elastic resistance is the thrust for driving the test positioning slot 3 to reset. During the rotation of the horizontal rotary drum 4, the state when the test positioning slot 3 and the graphics card positioning slot 5 are open relative to each other is a test calibration state. This state enables the graphics card gold finger in the graphics card positioning slot 5 to be dynamically aligned with the expansion slot in the test positioning slot 3. When the gold finger is inserted into the expansion slot, when the horizontal rotary drum 4 rotates, the above-mentioned elastic resistance will apply a lateral elastic thrust to the graphics card to realize a side stress plug-in test.

[0041] The above-mentioned upper reversing control mechanism 6 includes a connecting frame 61 and an upper elastic telescopic pull rod 62. The connecting frame 61 can be a straight plate structure or a door-type frame structure. In the present embodiment, the connecting frame 61 is a door-type frame. One end of the connecting frame 61 is rotatably connected to the positions at both ends of the graphics card positioning groove 5 on the horizontal rotary cylinder 4. The connecting frame 61 is located in the horizontal rotary cylinder 4. The cylinder wall of the horizontal rotary cylinder 4 is welded with upper positioning sleeves 42 located on both sides of the graphics card positioning groove 5. The open end of the connecting frame 61 is rotatably connected to the upper positioning sleeve 42, wherein the outer peripheral wall of the horizontal rotary cylinder 4 is provided with a positioning sleeve for accommodating the graphics card positioning groove 5. The other end of the connecting frame 61 is hingedly connected to the graphics card positioning slot 5 at one end located in the horizontal rotating cylinder 4 through an upper elastic telescopic pull rod 62 and the graphics card positioning slot 5. The upper elastic telescopic pull rod 62 is a double-section telescopic structure and a tension spring is arranged inside. The tension spring makes the upper elastic telescopic pull rod 62 in a contraction trend. When the connecting frame 61 swings, the direction of the slot of the graphics card positioning slot 5 changes. That is to say, when the horizontal rotating cylinder 4 swings, the connecting frame 61 will drive the graphics card positioning slot 5 to rotate through the upper elastic telescopic pull rod 62, and the elastic force of the upper elastic telescopic pull rod 62 will exert swinging resistance on the graphics card positioning slot 5.

[0042] Furthermore, the upper reversing control mechanism 6 includes an adjusting sleeve 63, and a coaxial transmission shaft 41 is arranged in the middle of the horizontal rotating drum 4. The transmission shaft 41 is welded and connected to the inner wall of the horizontal rotating drum 4 through a connecting rod. The two ends of the transmission shaft 41 are rotatably connected to two vertical plates, and a control motor is installed on one of the vertical plates. The function of the control motor is to provide a rotational driving force to the transmission shaft 41. The adjusting sleeve 63 is sleeved on the transmission shaft 41 and is rotatably matched. The outer peripheral wall of the adjusting sleeve 63 is welded with a circumferentially uniformly distributed lever arm 631, and the free end of the lever arm 631 and one side of the connecting frame 61 are rotatably and slidably matched. Specifically, a roller close to the free end is welded on one side of the lever arm 631, and then a guide hole that matches the gap of the roller is opened on the side wall of the connecting frame 61, so that when the adjusting sleeve 63 rotates relative to the transmission shaft 41, the lever arm 631 will push the connecting frame 61 to rotate relative to the horizontal rotating drum 4. A locking bolt 632 is screwed through the outer wall of the adjustment sleeve 63 , and a limiting groove 411 matching with the locking bolt 632 is formed on the outer wall of the transmission shaft 41 . The locking bolt 632 locks the adjustment sleeve 63 and the transmission shaft 41 .

[0043] The lower reversing control mechanism 7 includes a lower elastic telescopic pull rod 71, a lead screw 72 and a traction slider 73. The lower elastic telescopic pull rod 71 has the same structure as the upper elastic telescopic pull rod 62. The lead screw 72 is rotatably connected to the bottom of the test plate 2. Specifically, two hanging plates close to both ends are welded to the bottom of the test plate 2, and the hanging plates and both ends of the lead screw 72 are rotatably connected. The traction slider 73 is slidably connected to the bottom of the test plate 2 and is screwed together with the lead screw 72. A threaded sleeve that is screwed together with the lead screw 72 is welded on the traction slider 73. The top of the traction slider 73 is hingedly connected to the bottom of the test positioning groove 3 through the lower elastic telescopic pull rod 71. When the lead screw 72 drives the traction slider 73 to move, the traction slider 73 drives the test positioning groove 3 to swing through the lower elastic telescopic pull rod 71, thereby adjusting the opening direction of the test positioning groove 3, and the elastic force of the lower elastic telescopic pull rod 71 will apply swing resistance to the test positioning groove 3.

[0044] In this embodiment, hanging tubes 51 rotatably connected to the upper positioning sleeve 42 are welded on both sides of the graphics card positioning slot 5. An upper transmission screw 511 is sleeved and screwed inside the hanging tube 51. One end of the upper transmission screw 511 is rotatably connected to an upper clamping plate 5111 located in the graphics card positioning slot 5. The upper clamping plate 5111 serves to clamp the graphics card in the graphics card positioning slot 5.

[0045] The two ends of the test positioning groove 3 are welded with lower positioning sleeves 31 which are rotatably connected to the test plate 2. Specifically, a limiting tube which is rotatably connected to the lower positioning sleeve 31 is welded on the test plate 2. A lower transmission screw 311 is sleeved and screwed in the lower positioning sleeve 31. One end of the lower transmission screw 311 is rotatably connected to a lower clamping plate 3111 located in the test positioning groove 3. The function of the lower clamping plate 3111 is to clamp the expansion slot placed in the test positioning groove 3.

[0046] Example 2

[0047] See also Figure 1 and Figure 6 , which is different from Example 1 in that the number of the test positioning grooves 3 is at least two and they are arranged and distributed along the length direction of the test plate 2, the test plate 2 and the test table 1 are horizontally slidably matched and the sliding direction is perpendicular to the axis of the horizontal rotary drum 4, specifically, slides are welded on both sides of the test plate 2, and then groove plates are welded on the opposite sides of the two vertical plates, the groove plates and the slides are slidably connected, and a limit bolt is screwed through the vertical plate, and the limit bolt can squeeze the slide when tightened, so that the test plate 2 is locked on the vertical plate. This setting enables the test plate 2 to quickly switch different test positioning grooves 3 to be in the test position when sliding.

[0048] Working principle: 1. Preparation before testing: put the graphics card into each graphics card positioning slot 5, then use the upper clamping plate 5111 to clamp the graphics card, put the expansion slot for testing into each test positioning slot 3, then use the lower clamping plate 3111 to clamp the expansion slot, manually rotate the adjustment sleeve 63, the lever arm 631 pushes the connecting frame 61 to swing, and the upper elastic telescopic rod 62 drives the graphics card positioning slot 5 to be in an inclined state. The control screw 72 rotates, and the traction slider 73 drives the test positioning slot 3 to be in an inclined position through the lower elastic telescopic rod 71.

[0049] Second, plug-in test, when the transmission shaft 41 is controlled to rotate, the horizontal rotary drum 4 rotates. When one of the graphics card positioning slots 5 is close to the test positioning slot 3, the end of the gold finger of the graphics card will enter the expansion slot. During this process, the graphics card positioning slot 5 and the test positioning slot 3 will be twisted, and the upper elastic telescopic rod 62 and the lower elastic telescopic rod 71 will be stretched. At this time, lateral stress will be applied to the gold finger to achieve a lateral stress plug-in test. As the current graphics card positioning slot 5 moves away, the gold finger will be separated from the expansion slot to achieve a lateral stress pull-out test. Control the opening direction of the test positioning slot 3 and the graphics card positioning slot 5 to change, and then control the horizontal rotary drum 4 to rotate in the opposite direction to change the direction of the lateral stress applied during the graphics card test.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A computer graphics card plug-in test device, comprising a test bench (1), characterized in that: A test plate (2) is arranged above the test bench (1), and a test positioning groove (3) is arranged on the test plate (2), and the test positioning groove (3) is arranged to rotate. A horizontal rotary drum (4) is arranged above the test plate (2), and the outer circumference of the horizontal rotary drum (4) is rotatably connected to a plurality of graphics card positioning grooves (5) evenly distributed in the circumferential direction, and the rotation axes of the graphics card positioning groove (5), the test positioning groove (3) and the horizontal rotary drum (4) are parallel. An upper reversing control mechanism (6) is arranged on the test bench (1), and the upper reversing control mechanism (6) is used to control The graphics card positioning grooves (5) uniformly distributed in the circumferential direction are controlled to rotate synchronously in the same direction, and when the graphics card positioning grooves (5) are pushed by external force, they themselves generate an elastic resistance. The test plate (2) is provided with a lower reversing control mechanism (7), and the lower reversing control mechanism (7) is used to control the rotation of the test positioning grooves (3). When the test positioning grooves (3) are pushed by external force, they themselves generate an elastic resistance. During the rotation of the horizontal rotary drum (4), the state in which the test positioning grooves (3) and the graphics card positioning grooves (5) are opened relative to each other is a test calibration state.

2. A computer graphics card plug-in and pull-out test device according to claim 1, characterized in that: The upper reversing control mechanism (6) comprises a connecting frame (61) and an upper elastic telescopic pull rod (62); one end of the connecting frame (61) is rotatably connected to the positions at both ends of the graphics card positioning groove (5) on the horizontal rotary cylinder (4); the other end of the connecting frame (61) is hingedly connected to one end of the graphics card positioning groove (5) located in the horizontal rotary cylinder (4) via the upper elastic telescopic pull rod (62); when the connecting frame (61) swings, the notch direction of the graphics card positioning groove (5) changes.

3. A computer graphics card plug-in and pull-out test device according to claim 2, characterized in that: The upper reversing control mechanism (6) comprises an adjusting sleeve (63). A coaxial transmission shaft (41) is arranged in the middle of the horizontal rotary drum (4). The adjusting sleeve (63) is sleeved on the transmission shaft (41) and is rotationally matched. The outer peripheral wall of the adjusting sleeve (63) is welded with circumferentially evenly distributed lever arms (631). The free end of the lever arm (631) is rotationally and slidingly matched with one side of the connecting frame (61).

4. A computer graphics card plug-in and pull-out test device according to claim 3, characterized in that: A locking bolt (632) is screwed through the outer peripheral wall of the adjustment sleeve (63), and a limiting groove (411) matching with the locking bolt (632) is formed on the outer peripheral wall of the transmission shaft (41).

5. A computer graphics card plug-in and pull-out test device according to claim 2, characterized in that: Upper positioning sleeves (42) located on both sides of the graphics card positioning groove (5) are welded on the cylinder wall of the horizontal rotary cylinder (4), and hanging tubes (51) rotatably connected to the upper positioning sleeves (42) are welded on both sides of the graphics card positioning groove (5), and an upper transmission screw (511) is sleeved and screwed in the hanging tube (51), and one end of the upper transmission screw (511) is rotatably connected to an upper clamping plate (5111) located in the graphics card positioning groove (5).

6. A computer graphics card plug-in and pull-out test device according to claim 1, characterized in that: The lower reversing control mechanism (7) comprises a lower elastic telescopic pull rod (71), a lead screw (72) and a traction slider (73); the lead screw (72) is rotatably connected to the bottom of the test plate (2); the traction slider (73) is slidably connected to the bottom of the test plate (2) and is screwed to the lead screw (72); the top of the traction slider (73) is hingedly connected to the bottom of the test positioning groove (3) through the lower elastic telescopic pull rod (71).

7. A computer graphics card plug-in and pull-out test device according to claim 6, characterized in that: The two ends of the test positioning groove (3) are welded with lower positioning sleeves (31) which are rotatably connected to the test plate (2); a lower transmission screw (311) is sleeved and screwed in the lower positioning sleeve (31); one end of the lower transmission screw (311) is rotatably connected to a lower clamping plate (3111) located in the test positioning groove (3).

8. A computer graphics card plug-in and pull-out test device according to claim 7, characterized in that: The number of the test positioning grooves (3) is at least two and they are arranged and distributed along the length direction of the test plate (2); the test plate (2) and the test table (1) are horizontally slidably matched and the sliding direction is perpendicular to the axis of the horizontal rotary drum (4).

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