An apparatus for testing the floor sag of a rackmount computer server

Abstract

The application discloses a kind of rack computer server bottom sag's inspection device, it is related to the field of server, including feeder, detection mechanism is fixed on the feeder, the detection mechanism includes cross plate, the cross plate is fixed on mounting bracket, the cross plate is fixed with coating tank, the upper side of the cross plate is provided with detection plate at equal intervals, the lower end of the detection plate is fixed with the sliding connection of slide bar of cross plate, spring is fixed between the detection plate and the cross plate.The rack computer server bottom sag's inspection device, adopt multiple point elastic detection mechanism, cooperate with the movement of server body, can realize the detection effect of the sag of the bottom of server body, so as to determine whether the sag of the bottom of server body meets the requirements, and cooperate with the marking mechanism of linkage, when the sag of the bottom of server body does not meet the requirements during the detection process, realize the marking effect, facilitate the subsequent maintenance of server body.

Description

Technical Field

[0001] This invention relates to the field of server technology, specifically to a device for testing the sag of the bottom surface of a rack-mounted computer server. Background Technology

[0002] Rack servers are a type of functional server that offers advantages such as high space utilization, strong scalability, good heat dissipation, and convenient maintenance and management. They are widely used in the industrial field. Rack servers mainly consist of a thin-walled shell and internal electronic components. After the rack server is assembled, the weight of the internal electronic components may cause the shell to sag. If the sag is greater than or equal to 3mm, it will affect the normal operation of the server. Therefore, after the rack server is manufactured, the sag of the bottom surface needs to be tested.

[0003] Existing rack-mount server sag detection devices, such as the rack-mount server bottom sag inspection device disclosed in CN213518233U, include a detection module comprising a generator and a receiver. The generator is installed at the bottom of one of the lifting brackets, and the receiver is installed at the bottom of the other lifting bracket. The generator and receiver cooperate to detect the sag of the server bottom surface, ensuring the safety and stability of the server after it is mounted, and greatly improving detection efficiency. The generator is a laser generator, and the receiver is a laser receiver. The cooperation between the laser generator and the laser receiver enables the detection of the server bottom sag, greatly improving detection efficiency.

[0004] While the existing testing devices can detect whether the sag of the bottom surface of a rack-mounted server is up to standard during actual use, they cannot determine the specific sag position or mark the sag position, which leads to difficulties in subsequent maintenance. Summary of the Invention

[0005] The purpose of this invention is to provide a device for testing the sag of the bottom surface of a rack-mounted computer server, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for inspecting the sagging of the bottom surface of a rack-mounted computer server, comprising a feeder, a detection mechanism fixed on the feeder, the detection mechanism comprising a horizontal plate, the horizontal plate being fixed on a mounting frame, a paint tank being fixed on the horizontal plate, detection plates being evenly spaced on the upper side of the horizontal plate, a sliding rod being fixed to the lower end of the detection plate and slidably connected to the horizontal plate, a spring being fixed between the detection plate and the horizontal plate, and a laser emitter and a laser receiver being evenly spaced on the lower end face of the horizontal plate, wherein the laser emitter, the laser receiver, and the horizontal plate are... The components are distributed in a one-to-one correspondence, and the distance between the lower end face of the slide bar and the central axis of the laser receiver is 3mm. A marking mechanism is connected to the paint tank. The marking mechanism includes a swing arm, which is rotatably connected to the paint tank. A torsion spring is installed between the swing arm and the paint tank. A protrusion is fixed at one end of the swing arm, and the protrusion contacts a pressure plate fixed on the detection plate. A rotating shaft is rotatably connected to the other end of the swing arm, and a torsion spring is installed between the rotating shaft and the swing arm. A connecting rod is fixed on the rotating shaft, and a coating roller is connected to the connecting rod by a bearing. The coating roller is located inside the paint tank.

[0007] Preferably, the feeder includes a mounting frame, on which a first motor is fixed, and a roller is fixed to the output end of the first motor. A conveyor belt is connected to the roller, on which the server body is placed. Limiting blocks are fixed at equal intervals on the conveyor belt, and air cushions are symmetrically fixed on the limiting blocks. The air cushions contact the server body to achieve limiting. A support plate is also fixed on the mounting frame, and the support plate contacts the conveyor belt. The upper surface of the conveyor belt is flush with the upper surface of the detection plate. The conveyor belt, limiting blocks, and air cushions can realize the conveying and limiting functions of the server body, thereby providing a basic guarantee for the subsequent detection of the server body. With the help of the support plate, the conveyor belt can be supported to prevent deformation of the conveyor belt under the gravity of the server body.

[0008] Preferably, a first conveyor is provided on the front right side of the feeder, and a second conveyor is provided on the rear right side of the feeder. A limit mechanism is fixed on the feeder, and a material transfer mechanism is fixed on the first and second conveyors. Through the above structure, the transfer and conveying of the server body can be realized.

[0009] Preferably, the limiting mechanism includes a bracket, which is fixed on the feeder, and a U-shaped frame is provided below the bracket. A rubber roller is connected to the U-shaped frame by a bearing. The lower end face of the rubber roller is flush with the upper end face of the server body, and the rubber roller is located directly above the detection plate. The rubber roller can be used to position the server body and prevent the server body from moving upward during the detection process, which would affect the accuracy of the detection data.

[0010] Preferably, the U-shaped frame is connected to a bearing with a first threaded rod, and the first threaded rod is threadedly connected to the support. Vertical rods are symmetrically fixed on the front and rear of the U-shaped frame, and the vertical rods are slidably connected to the support. Through the above structure, the position of the rubber roller can be adjusted to adapt to the detection operation of server bodies of different heights.

[0011] Preferably, a fixing plate is fixed inside the paint tank, and a round rod is slidably connected to the fixing plate. The sliding action between the round rod and the fixing plate can ensure that the round rod can move linearly.

[0012] Preferably, a first contact sensor is fixed to the upper end of the round rod, and a foam board is fixed to the lower end of the round rod. A second contact sensor is fixed to the foam board. Both the second and third contact sensors are electrically connected to the control microcontroller processor. With the above structure, the paint level in the paint tank can be detected, providing a basic guarantee for subsequent paint replenishment.

[0013] Preferably, the paint tank has a liquid inlet, which is connected to a delivery pump via a conduit. The delivery pump is installed on a storage tank for transporting the liquid inside the storage tank. The storage tank is placed on a feeder. The delivery pump is electrically connected to the control microcontroller processor. With the above structure, the paint in the paint tank can be automatically replenished, ensuring the normal operation of the device.

[0014] Preferably, the material transfer mechanism includes a fixed frame, one end of which is fixed to a first conveyor and the other end of which is fixed to a second conveyor. A second motor is mounted on the fixed frame, and the second motor is connected to a second threaded rod that is connected to the fixed frame by a bearing. The second threaded rod is threadedly connected to the movable frame, and the movable frame is slidably connected to the guide rod fixed on the fixed frame. Through the above structure, the front and rear positions of the movable frame can be adjusted, thereby providing a basic guarantee for the transfer of the server body.

[0015] Preferably, a cylinder is fixed to the lower end face of the movable frame, and a mounting plate is fixed to the output end of the cylinder. Suction cups are evenly installed on the lower end face of the mounting plate, and the suction cups are connected to the air pump through a conduit. With the above structure, the server body can be fixed, making it convenient to rotate the server body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This rack-mounted computer server bottom sag inspection device adopts a multi-point elastic detection mechanism, which, in conjunction with the movement of the server body, can detect the bottom sag of the server body, thereby determining whether the bottom sag of the server body meets the requirements. In addition, with the linkage marking mechanism, when the bottom sag of the server body does not meet the requirements during the inspection process, it can mark the server body to facilitate subsequent maintenance.

[0018] 2. The device for inspecting the sag of the bottom surface of the rack-mounted computer server adopts a liquid level detection and replenishment structure. During the use of the device, when the liquid level in the paint tank is too low, the paint can be automatically replenished, thereby ensuring that the coating roller can always be in contact with the paint, thus providing a basic guarantee for the normal operation of the device. Attached Figure Description

[0019] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention;

[0020] Figure 2 This is a bottom-view three-dimensional structural diagram of the feeder assembly of the present invention;

[0021] Figure 3 This is a bottom-view three-dimensional structural diagram of the limiting mechanism of the present invention;

[0022] Figure 4 This is a frontal three-dimensional structural diagram of the testing mechanism and the paint tank of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0024] Figure 6 This is a side view cross-sectional three-dimensional structural diagram of the detection mechanism and marking mechanism of the present invention;

[0025] Figure 7 This is a bottom-view three-dimensional structural diagram of the material transfer mechanism of the present invention.

[0026] In the diagram: 1. Feeder; 101. Mounting frame; 102. First motor; 103. Roller; 104. Conveyor belt; 105. Limiting block; 106. Air cushion; 107. Support plate; 2. First transmission machine; 3. Second transmission machine; 4. Server body; 5. Limiting mechanism; 501. Bracket; 502. U-shaped frame; 503. Rubber roller; 504. First threaded rod; 505. Vertical rod; 6. Detection mechanism; 601. Horizontal plate; 602. Detection plate; 603. Slide bar; 604. Spring; 605. Laser emitter; 606. Laser receiver; 7. Paint box 701. Fixing plate; 702. Round rod; 703. First contact sensor; 704. Foam board; 705. Second contact sensor; 706. Liquid inlet; 707. Transfer pump; 708. Liquid storage tank; 8. Marking mechanism; 801. Swing rod; 802. Protrusion; 803. Pressure plate; 804. Rotating shaft; 805. Connecting rod; 806. Coating roller; 9. Transfer mechanism; 901. Fixing frame; 902. Second motor; 903. Second threaded rod; 904. Movable frame; 905. Guide rod; 906. Cylinder; 907. Mounting plate; 908. Suction cup. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-7The present invention provides a technical solution: a device for inspecting the sagging of the bottom surface of a rack-mounted computer server, including a feeder 1, a detection mechanism 6 fixed on the feeder 1, the feeder 1 including a mounting frame 101, a first motor 102 fixed on the mounting frame 101, and a roller shaft 103 fixed at the output end of the first motor 102, a conveyor belt 104 connected to the roller shaft 103, a server body 4 placed on the conveyor belt 104, and limit blocks 105 fixed at equal intervals on the conveyor belt 104, and air cushions 106 symmetrically fixed on the limit blocks 105, and the air cushions 106 contact the server body 4 to achieve limitation, and a support plate 107 fixed on the mounting frame 101, the support plate 107 contacting the conveyor belt 104, and the upper end surface of the conveyor belt 104 being flush with the upper end surface of the detection plate 602; A first conveyor 2 is provided on the front right side of the feeder 1, and a second conveyor 3 is provided on the rear right side of the feeder 1. A limit mechanism 5 is fixed on the feeder 1, and a material transfer mechanism 9 is fixed on the first conveyor 2 and the second conveyor 3. The limit mechanism 5 includes a bracket 501, which is fixed on the feeder 1. A U-shaped frame 502 is provided below the bracket 501. A rubber roller 503 is connected to the U-shaped frame 502 by a bearing. The lower end face of the rubber roller 503 is flush with the upper end face of the server body 4, and the rubber roller 503 is located directly above the detection plate 602. A first threaded rod 504 is connected to the U-shaped frame 502 by a bearing. The first threaded rod 504 is threadedly connected to the bracket 501. Vertical rods 505 are symmetrically fixed on the U-shaped frame 502, and the vertical rods 505 are slidably connected to the bracket 501.

[0029] When using this rack-mount computer server bottom sag testing device, such as Figures 1-7 As shown, firstly, the position of the rubber roller 503 is adjusted according to the height of the server body 4. By rotating the first threaded rod 504, and with the threaded connection between the first threaded rod 504 and the bracket 501, the U-shaped frame 502 and the rubber roller 503 can be moved. With the sliding guide between the vertical rod 505 and the bracket 501, the height of the rubber roller 503 can be adjusted to ensure that the lower end face of the rubber roller 503 is flush with the upper end face of the server body 4. Then, the server body 4 to be tested is placed face down on the conveyor belt 104. With the help of the air cushion 106 and the limiting block 105, the server body 4 can be positioned. Then, by starting the first motor 102, the roller shaft 103 and the conveyor belt 104 are driven to rotate. Under the action of the conveyor belt 104, the server body 4 moves from left to right. With the support plate 107 supporting the conveyor belt 104, the conveyor belt 104 can be prevented from sagging due to the gravity of the server body 4, thus ensuring that the server body 4 moves horizontally.

[0030] The testing mechanism 6 includes a horizontal plate 601, which is fixed on the mounting frame 101. A paint tank 7 is fixed on the horizontal plate 601. Testing plates 602 are evenly spaced on the upper side of the horizontal plate 601. A slide rod 603, which is slidably connected to the horizontal plate 601, is fixed to the lower end of the testing plate 602. A spring 604 is fixed between the testing plate 602 and the horizontal plate 601. Laser emitters 605 and laser receivers 606 are evenly spaced on the lower end face of the horizontal plate 601, and the laser emitters 605, laser receivers 606, and the horizontal plate 601 are distributed in a one-to-one correspondence. The distance from the lower end face of the slide rod 603 to the central axis of the laser receiver 606 is... The distance is 3mm. A marking mechanism 8 is connected to the paint tank 7. The marking mechanism 8 includes a swing rod 801, which is rotatably connected to the paint tank 7. A torsion spring is installed between the swing rod 801 and the paint tank 7. A protrusion 802 is fixed at one end of the swing rod 801. The protrusion 802 contacts the pressure plate 803 fixed on the detection plate 602. A rotating shaft 804 is rotatably connected to the other end of the swing rod 801. A torsion spring is installed between the rotating shaft 804 and the swing rod 801. A connecting rod 805 is fixed on the rotating shaft 804. A coating roller 806 is connected to the connecting rod 805 by a bearing. The coating roller 806 is located inside the paint tank 7.

[0031] During the process of server body 4 moving to the right, such as Figures 1-7 As shown, when the server body 4 contacts the rubber roller 503, the detection plate 602 simultaneously contacts the bottom surface of the server body 4. The limiting effect of the rubber roller 503 prevents the server body 4 from moving upwards due to the elasticity of the spring 604 during the detection process, thus avoiding affecting the accuracy of the detection. By moving the server body 4 and sliding it against the detection plate 602, the sag of the bottom surface of the server body 4 can be detected. During the detection process, when there is no sag on the bottom surface of the server body 4, the detection plate 602 does not move, and the laser emitted by the laser emitter 605 can be normally received by the laser receiver 606, indicating that the server body 4 is a qualified product. When the sag of the bottom surface of the server body 4 is less than 3mm, the detection plate 602 moves downwards under force. The sliding rod 603 moves downward. Since the distance between the lower end of the sliding rod 603 and the central axis of the laser receiver 606 is 3mm, the sliding rod 603 will not block the laser emitted by the laser emitter 605. That is, the laser emitted by the laser emitter 605 can be normally received by the laser receiver 606, indicating that the server body 4 is a qualified product. When the bottom surface of the server body 4 sags by more than or equal to 3mm, the downward movement distance of the detection plate 602 and the sliding rod 603 is more than or equal to 3mm, causing the sliding rod 603 to block the laser emitted by the laser emitter 605. That is, the laser emitted by the laser emitter 605 cannot be normally received by the laser receiver 606, indicating that the server body 4 is a defective product, thus realizing the detection function of the server body 4.

[0032] During the inspection of the server body 4, when the sag of the bottom surface of the server body 4 is equal to 3mm, the pressure plate 803 moves down synchronously as the inspection plate 602 moves down. The pressure plate 803 provides force to the protrusion 802, causing the swing arm 801, the rotating shaft 804, the connecting rod 805, and the coating roller 806 to swing. When the inspection plate 602 moves down 3mm, the coating roller 806 is exactly aligned with the bottom surface of the server body 4. The coating adhering to the coating roller 806 marks the bottom surface of the server body 4. At this time, the marking position is located at... The right side of the drooping position facilitates subsequent staff to determine the drooping position for maintenance of the server body 4. When the drooping of the bottom surface of the server body 4 is greater than 3mm, the coating roller 806 is in contact with the bottom surface of the server body 4 to achieve a limit. At this time, in conjunction with the rotation between the rotating shaft 804 and the swing rod 801, the angle between the swing rod 801 and the connecting rod 805 changes. With the help of the torsion spring, it can ensure that the coating roller 806 is always in contact with the bottom surface of the server body 4 and rolls to achieve the marking function, thereby ensuring the normal operation of the device.

[0033] A fixing plate 701 is fixed inside the paint tank 7, and a round rod 702 is slidably connected to the fixing plate 701; a first contact sensor 703 is fixed to the upper end of the round rod 702, and a foam board 704 is fixed to the lower end of the round rod 702, and a second contact sensor 705 is fixed to the foam board 704. The second contact sensor 705 and the foam board 704 are electrically connected to the control microcontroller processor. The paint tank 7 has a liquid inlet 706, and the liquid inlet 706 is connected to the delivery pump 707 through a conduit. The delivery pump 707 is installed on the liquid storage tank 708 for delivering the liquid in the liquid storage tank 708. The liquid storage tank 708 is placed on the feeder 1. The delivery pump 707 is electrically connected to the control microcontroller processor.

[0034] During the use of the device, such as Figures 1-7 As shown, when the paint in the paint tank 7 decreases to the point where the first contact sensor 703 contacts the fixed plate 701, the lower end face of the foam board 704 is flush with the lower end face of the coating roller 806. At this time, the microcontroller receives a signal to start the delivery pump 707, thereby sending the paint in the storage tank 708 into the paint tank 7, realizing the automatic filling function. As the liquid level in the paint tank 7 rises, the foam board 704 moves upward synchronously, thereby driving the second contact sensor 705 to move upward. When the second contact sensor 705 contacts the fixed plate 701, the microcontroller receives a signal to stop the delivery pump 707, thereby automatically completing the liquid replenishment function.

[0035] The material transfer mechanism 9 includes a fixed frame 901, one end of which is fixed to the first conveyor 2 and the other end of which is fixed to the second conveyor 3. A second motor 902 is mounted on the fixed frame 901. The second motor 902 is connected to a second threaded rod 903 that is connected to the fixed frame 901 by a bearing. The second threaded rod 903 is threadedly connected to a movable frame 904. The movable frame 904 is slidably connected to a guide rod 905 fixed on the fixed frame 901. A cylinder 906 is fixed to the lower end face of the movable frame 904. A mounting plate 907 is fixed to the output end of the cylinder 906. Suction cups 908 are evenly mounted on the lower end face of the mounting plate 907. The suction cups 908 are connected to an air pump through a conduit.

[0036] During the use of the device, such as Figures 1-7 As shown, when the server body 4 completes the inspection and moves to the right under the suction cup 908, the cylinder 906 extends, causing the mounting plate 907 and the suction cup 908 to move downwards until the suction cup 908 contacts the server body 4. With the help of the conduit and the air pump, the suction cup 908 can adsorb and fix the server body 4. After fixing, the cylinder 906 retracts, causing the server body 4 to move upwards. With the help of the second motor 902, the second threaded rod 903 and the movable frame 904, the server body 4 can be transferred back and forth. The qualified server body 4 is transferred to the first transmission machine 2, and the unqualified server body 4 is transferred to the second transmission machine 3 for subsequent processing. This is the working principle of the rack-mount computer server bottom sag inspection device.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A device for inspecting the sagging of the bottom surface of a rack-mounted computer server, comprising a feeder (1), characterized in that: The feeder (1) is fixed with a detection mechanism (6), which includes a horizontal plate (601) fixed on a mounting frame (101). A paint tank (7) is fixed on the horizontal plate (601). Detection plates (602) are evenly spaced on the upper side of the horizontal plate (601). A slide rod (603) that is slidably connected to the horizontal plate (601) is fixed at the lower end of the detection plate (602). A spring (604) is fixed between the detection plate (602) and the horizontal plate (601). A laser emitter (605) and a laser receiver (606) are evenly spaced on the lower end face of the horizontal plate (601), and the laser emitter (605), laser receiver (606), and horizontal plate (601) are distributed in a one-to-one correspondence. The lower end face of the slide rod (603) is connected to the laser receiver (606). 6) The distance between the central axes is 3mm. A marking mechanism (8) is connected to the paint tank (7). The marking mechanism (8) includes a swing arm (801). The swing arm (801) is rotatably connected to the paint tank (7). A torsion spring is installed between the swing arm (801) and the paint tank (7). A protrusion (802) is fixed at one end of the swing arm (801). The protrusion (802) contacts the pressure plate (803) fixed on the detection plate (602). A rotating shaft (804) is rotatably connected to the other end of the swing arm (801). A torsion spring is installed between the rotating shaft (804) and the swing arm (801). A connecting rod (805) is fixed on the rotating shaft (804). A coating roller (806) is connected to the connecting rod (805) by a bearing. The coating roller (806) is located inside the paint tank (7).

2. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 1, characterized in that: The feeder (1) includes a mounting frame (101), and a first motor (102) is fixed on the mounting frame (101). A roller shaft (103) is fixed at the output end of the first motor (102). A conveyor belt (104) is connected to the roller shaft (103). A server body (4) is placed on the conveyor belt (104). Limiting blocks (105) are fixed at equal intervals on the conveyor belt (104). Air cushions (106) are symmetrically fixed on the limiting blocks (105). The air cushions (106) contact the server body (4) to achieve limiting. A support plate (107) is also fixed on the mounting frame (101). The support plate (107) contacts the conveyor belt (104). The upper surface of the conveyor belt (104) is flush with the upper surface of the detection plate (602).

3. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 1, characterized in that: The feeder (1) is provided with a first transmission machine (2) on the front right side and a second transmission machine (3) on the rear right side. A limit mechanism (5) is fixed on the feeder (1), and a material transfer mechanism (9) is fixed on the first transmission machine (2) and the second transmission machine (3).

4. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 3, characterized in that: The limiting mechanism (5) includes a bracket (501), which is fixed on the feeder (1). A U-shaped frame (502) is provided below the bracket (501), and a rubber roller (503) is connected to the bearing on the U-shaped frame (502). The lower end face of the rubber roller (503) is flush with the upper end face of the server body (4), and the rubber roller (503) is located directly above the detection plate (602).

5. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 4, characterized in that: The U-shaped frame (502) is connected to a bearing with a first threaded rod (504), and the first threaded rod (504) is threadedly connected to the bracket (501). Vertical rods (505) are symmetrically fixed on the front and back of the U-shaped frame (502), and the vertical rods (505) are slidably connected to the bracket (501).

6. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 1, characterized in that: The paint box (7) is fixed with a fixing plate (701), and a round rod (702) is slidably connected to the fixing plate (701).

7. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 6, characterized in that: The upper end of the round rod (702) is fixed with a first contact sensor (703), and the lower end of the round rod (702) is fixed with a foam board (704). A second contact sensor (705) is fixed on the foam board (704). Both the second contact sensor (705) and the second contact sensor (705) are electrically connected to the control microcontroller processor.

8. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 6, characterized in that: The paint tank (7) is provided with a liquid inlet (706), and the liquid inlet (706) is connected to the delivery pump (707) through a conduit. The delivery pump (707) is installed on the storage tank (708) for transporting the liquid in the storage tank (708). At the same time, the storage tank (708) is placed on the feeder (1). The delivery pump (707) is electrically connected to the control microcontroller processor.

9. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 3, characterized in that: The material transfer mechanism (9) includes a fixed frame (901), one end of which is fixed to the first conveyor (2), and the other end of which is fixed to the second conveyor (3). A second motor (902) is installed on the fixed frame (901). The second motor (902) is connected to a second threaded rod (903) that is connected to the fixed frame (901) by a bearing. The second threaded rod (903) is threadedly connected to the movable frame (904), and the movable frame (904) is slidably connected to the guide rod (905) fixed on the fixed frame (901).

10. The device for testing the sag of the bottom surface of a rack-mounted computer server according to claim 9, characterized in that: A cylinder (906) is fixed to the lower end face of the movable frame (904), and a mounting plate (907) is fixed to the output end of the cylinder (906). Suction cups (908) are evenly installed on the lower end face of the mounting plate (907), and the suction cups (908) are connected to the air pump through a conduit.

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