Checking device for bottom surface sag of rack-mounted computer server

Abstract

The invention discloses a rack-mounted computer server bottom surface sag detection device, and relates to the field of servers, the rack-mounted computer server bottom surface sag detection device comprises a feeder, a detection mechanism is fixed on the feeder, the detection mechanism comprises a transverse plate, the transverse plate is fixed on a mounting rack, a coating box is fixed on the transverse plate, detection plates are arranged on the upper side of the transverse plate at equal intervals, and the detection plates are fixed on the mounting rack. A sliding rod in sliding connection with the transverse plate is fixed to the lower end of the detection plate, and a spring is fixed between the detection plate and the transverse plate. According to the rack-type computer server bottom surface sag detection device, the multi-point elastic detection mechanism is adopted and is matched with the movement effect of the server body, the detection effect of the server body bottom surface sag can be achieved, and therefore whether the server body bottom surface sag meets the requirement or not can be determined, and the detection accuracy of the server body bottom surface sag is improved through the linkage marking mechanism. In the detection process, when the sag of the bottom face of the server body does not meet the requirement, the marking effect is achieved, and follow-up maintenance of the server body is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of servers, in particular to a device for inspecting the sag of the bottom surface of a rack-type computer server. Background Art

[0002] A rack server is a functional server with advantages such as high space utilization, strong scalability, good heat dissipation, and easy maintenance and management. It is 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 standard is greater than or equal to 3mm, it will affect the normal operation of the server. Therefore, after the rack server is produced, the bottom sag needs to be tested.

[0003] Existing rack-mounted server sag detection devices, such as a rack-mounted server bottom sag inspection device with publication number CN213518233U, have a detection module comprising a generator and a receiver. The generator is mounted at the bottom of one lifting bracket, and the receiver is mounted at the bottom of the other lifting bracket. The generator and the receiver cooperate to detect the sag of the bottom of the server, ensuring the safety and stability of the server after being racked, greatly improving detection efficiency. The generator is a laser generator, and the receiver is a laser receiver. The laser generator and the laser receiver cooperate to detect the sag of the bottom of the server, greatly improving detection efficiency.

[0004] In actual use, the above-mentioned existing detection device can detect whether the sag degree of the bottom surface of the rack server is qualified, but it cannot determine the specific sag position and cannot mark the sag position, which makes subsequent maintenance difficult. Summary of the Invention

[0005] The object of the present invention is to provide a device for inspecting the sag of the bottom surface of a rack-mounted computer server, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for inspecting the sag 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 fixed on the mounting frame, a paint box fixed on the horizontal plate, detection plates arranged at equal intervals on the upper side of the horizontal plate, a slide bar slidably connected to the horizontal plate fixed at the lower end of the detection plate, a spring fixed between the detection plate and the horizontal plate, a laser emitter and a laser receiver fixed at equal intervals on the lower end surface of the horizontal plate, and the laser emitter, laser receiver and the horizontal plate are connected. The distance between the two ends of the slide bar is one-to-one, and the distance between the lower end surface of the slide bar and the central axis of the laser receiver is 3 mm. The paint box is connected to a marking mechanism, and the marking mechanism includes a rocker arm, which is rotatably connected to the paint box, and a torsion spring is installed between the rocker arm and the paint box. A bump is fixed to one end of the rocker arm, and the bump contacts a pressure plate fixed on the detection plate. The other end of the rocker arm is rotatably connected to a rotating shaft, and a torsion spring is installed between the rotating shaft and the rocker arm. A connecting rod is fixed on the rotating shaft, and a coating roller is connected to a bearing on the connecting rod, and the coating roller is arranged in the paint box.

[0007] Preferably, the feeder includes a mounting frame, and a first motor is fixed on the mounting frame, and a roller is fixed to the output end of the first motor, and a conveyor belt is connected to the roller, and a server body is placed on the conveyor belt, and limit blocks are fixed at equal intervals on the conveyor belt, and air cushions are fixed symmetrically on the limit blocks, and the air cushions are in contact with the server body to achieve limiting. A support plate is also fixed on the mounting frame, and the support plate is in contact with the conveyor belt, and the upper end face of the conveyor belt is flush with the upper end face of the detection plate. The conveying and limiting functions of the server body can be achieved through the conveyor belt, the limit blocks and the air cushion, thereby providing a basic guarantee for the subsequent detection of the server body. In conjunction with the function of the support plate, the support of the conveyor belt can be achieved, thereby preventing the conveyor belt from being deformed under the gravity of the server body.

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

[0009] Preferably, the limiting mechanism includes a bracket, and the bracket is fixed on the feeder, and a U-shaped frame is arranged under the bracket. At the same time, a rubber roller is connected to the bearing on the U-shaped frame. 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 to avoid the server body moving upward during the detection process and affecting the accuracy of the detection data.

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

[0011] Preferably, a fixed plate is fixed in the paint box, and a round rod is slidably connected to the fixed plate. The sliding action between the round rod and the fixed plate can ensure that the round rod performs linear motion.

[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, and a second contact sensor is fixed on the foam board. At the same time, the second contact sensor and the second contact sensor are electrically connected to the control microcontroller processor. Through the above structure, the paint level in the paint box can be detected, providing basic guarantee for subsequent paint replenishment.

[0013] Preferably, a liquid inlet is provided on the paint box, and the liquid inlet is connected to the delivery pump through a conduit, and the delivery pump is installed on the liquid storage tank for delivering the liquid in the liquid storage tank. At the same time, the liquid storage tank is placed on the feeder, and the delivery pump is electrically connected to the control single-chip microcomputer processor. Through the above structure, automatic replenishment of paint in the paint box can be achieved to ensure the normal operation of the device.

[0014] Preferably, the material moving mechanism includes a fixed frame, and one end of the fixed frame is fixed on the first conveyor, and the other end of the fixed frame is fixed on the second conveyor. At the same time, a second motor is installed on the fixed frame, and the second motor and the second threaded rod connected to the bearing on the fixed frame are connected to each other, and the second threaded rod and the movable frame are threadedly connected, and the movable frame and the guide rod fixed on the fixed frame are slidingly connected. Through the above structure, the front and rear position adjustment of the movable frame can be realized, thereby providing basic guarantee for the transfer of the server body.

[0015] Preferably, a cylinder is fixed to the lower end surface of the movable frame, and a mounting plate is fixed to the output end of the cylinder, and suction cups are evenly installed on the lower end surface of the mounting plate. At the same time, the suction cups are interconnected with the air pump through a conduit. Through the above structure, the server body can be fixed, which facilitates the rotation of the server body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This rack-mounted computer server bottom sag inspection device uses a multi-point elastic detection mechanism, combined with the movement of the server body, to detect the bottom sag of the server body, thereby determining whether the bottom sag of the server body meets the requirements. Combined with a linked marking mechanism, during the inspection process, if the bottom sag of the server body does not meet the requirements, a mark can be provided, facilitating subsequent maintenance of the server body.

[0018] 2. The device for inspecting the sag of the bottom surface of the rack-mounted computer server adopts a liquid level detection and refilling structure. When the paint level in the paint box is too low during the use of the device, the paint can be automatically replenished, thereby ensuring that the coating roller can always be in contact with the paint, thereby providing a basic guarantee for the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0020] Figure 2 This is a bottom-up perspective structural diagram of the feeder of the present invention;

[0021] Figure 3 This is a bottom-up perspective structural diagram of the limiting mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the front three-dimensional structure of the detection mechanism and the paint box of the present invention;

[0023] Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram;

[0024] Figure 6 It is a schematic diagram of the side cross-sectional three-dimensional structure of the detection mechanism and the marking mechanism of the present invention;

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

[0026] In the figure: 1. Feeder; 101. Mounting frame; 102. First motor; 103. Roller; 104. Conveyor belt; 105. Limit block; 106. Air cushion; 107. Support plate; 2. First conveyor; 3. Second conveyor; 4. Server body; 5. Limit 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. Sliding rod; 604. Spring; 605. Laser transmitter; 606. Laser receiver; 7. Paint box ;701, fixed plate; 702, round rod; 703, first contact sensor; 704, foam board; 705, second contact sensor; 706, liquid inlet; 707, delivery pump; 708, liquid storage tank; 8, marking mechanism; 801, rocker arm; 802, bump; 803, pressure plate; 804, rotating shaft; 805, connecting rod; 806, coating roller; 9, material moving mechanism; 901, fixed frame; 902, second motor; 903, second threaded rod; 904, movable frame; 905, guide rod; 906, cylinder; 907, mounting plate; 908, suction cup. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 7The present invention provides a technical solution: a device for inspecting the sag of the bottom surface of a rack-mounted computer server, comprising a feeder 1, a detection mechanism 6 being fixed on the feeder 1, the feeder 1 comprising a mounting frame 101, a first motor 102 being fixed on the mounting frame 101, and a roller 103 being fixed on the output end of the first motor 102, and a conveyor belt 104 being connected to the roller 103, a server body 4 being placed on the conveyor belt 104, and limit blocks 105 being fixed at equal intervals on the conveyor belt 104, and air cushions 106 being fixed symmetrically on the limit blocks 105, and the air cushions 106 being in contact with the server body 4 to achieve positioning, a support plate 107 being further fixed on the mounting frame 101, and the support plate 107 being in contact with the conveyor belt 104, and an upper end surface of the conveyor belt 104 being flush with an upper end surface of the detection plate 602; A first conveyor 2 is provided on the front side of the right end of the feeder 1, and a second conveyor 3 is provided on the rear side of the right end of the feeder 1, and a limiting mechanism 5 is fixed on the feeder 1, and a material moving mechanism 9 is fixed on the first conveyor 2 and the second conveyor 3; the limiting mechanism 5 includes a bracket 501, and the bracket 501 is fixed on the feeder 1, and a U-shaped frame 502 is provided below the bracket 501, and at the same time, a rubber roller 503 is connected to the bearing on the U-shaped frame 502, the lower end surface of the rubber roller 503 is flush with the upper end surface 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 bearing on the U-shaped frame 502, and the first threaded rod 504 and the bracket 501 are threadedly connected, and vertical rods 505 are fixed symmetrically front and back on the U-shaped frame 502, and the vertical rod 505 and the bracket 501 are slidably connected;

[0029] When using the inspection device for the bottom sag of the rack-mounted computer server, if Figure 1-Figure 7 As shown, first, 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 cooperating 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. By cooperating with the sliding guide between the vertical rod 505 and the bracket 501, the height adjustment of the rubber roller 503 is achieved to ensure that the lower end surface of the rubber roller 503 is flush with the upper end surface of the server body 4. Then, the server body 4 to be tested is placed with the bottom surface facing down on the conveyor belt 104. With the help of the air cushion 106 and the limit block 105, the positioning of the server body 4 can be achieved. Then, by starting the first motor 102 to drive the roller 103 and the conveyor belt 104 to operate, the server body 4 is moved from left to right under the action of the conveyor belt 104. With the support of the support plate 107 on the conveyor belt 104, the conveyor belt 104 can be prevented from sagging due to the gravity of the server body 4, thereby ensuring the horizontal movement of the server body 4.

[0030] The detection mechanism 6 includes a horizontal plate 601, which is fixed on the mounting frame 101. A paint box 7 is fixed on the horizontal plate 601. A detection plate 602 is arranged at equal intervals on the upper side of the horizontal plate 601. A slide bar 603 is fixed at the lower end of the detection plate 602 to be slidably connected to the horizontal plate 601. 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 fixed at equal intervals on the lower end surface of the horizontal plate 601. The laser emitter 605, the laser receiver 606 and the horizontal plate 601 are distributed one-to-one, and the distance between the lower end surface of the slide bar 603 and the center axis of the laser receiver 606 is equal to the distance between the lower end surface of the slide bar 603 and the center axis of the laser receiver 606. The distance is 3 mm. A marking mechanism 8 is connected to the paint box 7. The marking mechanism 8 includes a rocker 801, which is rotatably connected to the paint box 7, and a torsion spring is installed between the rocker 801 and the paint box 7. A protrusion 802 is fixed to one end of the rocker 801, and the protrusion 802 contacts a pressure plate 803 fixed to the detection plate 602. The other end of the rocker 801 is rotatably connected to a rotating shaft 804, and a torsion spring is installed between the rotating shaft 804 and the rocker 801. A connecting rod 805 is fixed to the rotating shaft 804, and a coating roller 806 is connected to a bearing on the connecting rod 805. The coating roller 806 is arranged in the paint box 7;

[0031] When the server body 4 moves to the right, Figure 1-Figure 7 As shown, when the server body 4 contacts the rubber roller 503, the detection plate 602 contacts the bottom surface of the server body 4 synchronously. The limiting effect of the rubber roller 503 can prevent the server body 4 from moving upward due to the elastic effect of the spring 604 during the detection process, thereby affecting the accuracy of the detection. By moving the server body 4 to contact and slide with 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 transmitter 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 is forced to move downward, and the detection plate 602 is forced to move downward. The sliding rod 603 is driven downward. Since the distance between the lower end surface of the sliding rod 603 and the central axis of the laser receiver 606 is 3 mm, 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 sag of the bottom surface of the server body 4 is greater than or equal to 3 mm, the downward movement distance of the detection plate 602 and the sliding rod 603 is greater than or equal to 3 mm, 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, thereby realizing the detection function of the server body 4;

[0032] During the inspection process of the server body 4, when the sag of the bottom surface of the server body 4 is equal to 3mm, when the inspection plate 602 moves downward, the pressure plate 803 is synchronously driven to move downward, and the pressure plate 803 provides a force on the protrusion 802, so that the swing rod 801, the rotating shaft 804, the connecting rod 805 and the coating roller 806 swing. When the inspection plate 602 moves downward by 3mm, the coating roller 806 is just in contact with the bottom surface of the server body 4, and the bottom surface of the server body 4 is marked by the paint adhered to the coating roller 806. At this time, the marking position is at The right side of the drooping position makes it convenient for subsequent staff to determine the drooping position for maintenance of the server body 4. When the droop of the bottom surface of the server body 4 is greater than 3mm, the coating roller 806 contacts the bottom surface of the server body 4 to achieve position limiting. At this time, the rotation between the rotating shaft 804 and the rocker 801 causes the angle between the rocker 801 and the connecting rod 805 to change. In conjunction with the action of the torsion spring, it can ensure that the coating roller 806 always contacts and rolls with the bottom surface of the server body 4 to achieve a marking effect, thereby ensuring the normal operation of the device.

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

[0034] During use of the device, if Figure 1-Figure 7 As shown, when the paint in the paint box 7 is reduced to the point where the first contact sensor 703 contacts the fixed plate 701, the lower end surface of the foam plate 704 is flush with the lower end surface of the coating roller 806, and the control microcontroller processor receives a signal to control the delivery pump 707 to start, thereby delivering the paint in the liquid storage tank 708 into the paint box 7, realizing an automatic filling function, and as the liquid level in the paint box 7 rises, the foam plate 704 moves upward synchronously, thereby driving the second contact sensor 705 to move upward, and when the second contact sensor 705 contacts the fixed plate 701, the control microcontroller processor receives a signal to control the delivery pump 707 to stop, thereby automatically completing the liquid replenishment function;

[0035] The material moving mechanism 9 includes a fixed frame 901, and one end of the fixed frame 901 is fixed to the first conveyor 2, and the other end of the fixed frame 901 is fixed to the second conveyor 3. At the same time, a second motor 902 is installed on the fixed frame 901, and the second motor 902 is connected to a second threaded rod 903 whose bearing is connected to the fixed frame 901. 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 to the fixed frame 901; a cylinder 906 is fixed to the lower end surface of the movable frame 904, and a mounting plate 907 is fixed to the output end of the cylinder 906, and suction cups 908 are evenly installed on the lower end surface of the mounting plate 907, and the suction cups 908 are connected to the air pump through a conduit;

[0036] During use of the device, if Figure 1-Figure 7 As shown, when the server body 4 moves to the right to below the suction cup 908 after the inspection is completed, the cylinder 906 extends to drive the mounting plate 907 and the suction cup 908 to move downward until the suction cup 908 contacts the server body 4. With the action of the guide tube and the air pump, the suction cup 908 can adsorb and fix the server body 4. After the fixation is completed, the cylinder 906 contracts to drive the server body 4 to move upward. With the action of the second motor 902, the second threaded rod 903 and the movable frame 904, the server body 4 can be transferred forward and backward. The qualified server body 4 is transferred to the first conveyor 2, and the unqualified server body 4 is transferred to the second conveyor 3 for subsequent processing. This is the working principle of the inspection device for the sag of the bottom surface of the rack-mounted computer server.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are 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 used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, 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 occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A device for inspecting the sag 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), the detection mechanism (6) includes a transverse plate (601), the transverse plate (601) is fixed on the mounting frame (101), a paint box (7) is fixed on the transverse plate (601), detection plates (602) are arranged at equal intervals on the upper side of the transverse plate (601), a slide bar (603) slidably connected to the transverse 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 transverse plate (601), a laser emitter (605) and a laser receiver (606) are fixed at equal intervals on the lower end surface of the transverse plate (601), and the laser emitter (605), the laser receiver (606) and the transverse plate (601) are distributed in a one-to-one correspondence, and the lower end surface of the slide bar (603) is connected to the laser receiver (60 6) The distance between the central axes is 3 mm. The paint box (7) is connected to a marking mechanism (8), and the marking mechanism (8) includes a rocker (801). The rocker (801) is rotatably connected to the paint box (7), and a torsion spring is installed between the rocker (801) and the paint box (7). One end of the rocker (801) is fixed with a protrusion (802), and the protrusion (802) contacts a pressure plate (803) fixed on the detection plate (602). The other end of the rocker (801) is rotatably connected to a rotating shaft (804), and a torsion spring is installed between the rotating shaft (804) and the rocker (801). A connecting rod (805) is fixed to the rotating shaft (804), and a coating roller (806) is connected to the bearing on the connecting rod (805), and the coating roller (806) is arranged in the paint box (7).

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

3. The device for inspecting the bottom sag of a rack-mounted computer server according to claim 1, wherein: A first conveyor (2) is provided at the front right end of the feeder (1), and a second conveyor (3) is provided at the rear right end of the feeder (1). A limiting mechanism (5) is fixed on the feeder (1), and a material moving mechanism (9) is fixed on the first conveyor (2) and the second conveyor (3).

4. The device for inspecting the bottom sag of a rack-mounted computer server according to claim 3, wherein: The limiting mechanism (5) comprises a bracket (501), and the bracket (501) is fixed on the feeder (1), and 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 surface of the rubber roller (503) is flush with the upper end surface of the server body (4), and the rubber roller (503) is located directly above the detection plate (602).

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

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

7. The device for inspecting the bottom sag of a rack-mounted computer server according to claim 6, wherein: A first contact sensor (703) is fixed to the upper end of the round rod (702), a foam board (704) is fixed to the lower end of the round rod (702), and a second contact sensor (705) is fixed on the foam board (704), and the second contact sensor (705) and the second contact sensor (705) are both electrically connected to the control single chip processor.

8. The device for inspecting the bottom sag of a rack-mounted computer server according to claim 6, wherein: The coating box (7) is provided with a liquid inlet (706), and the liquid inlet (706) is connected to a delivery pump (707) through a conduit, and the delivery pump (707) is installed on a liquid storage tank (708) for delivering liquid in the liquid storage tank (708), and the liquid storage tank (708) is placed on the feeder (1), and the delivery pump (707) is electrically connected to a control single chip processor.

9. The device for inspecting the bottom sag of a rack-mounted computer server according to claim 3, wherein: The material moving mechanism (9) includes a fixed frame (901), one end of the fixed frame (901) is fixed on the first conveyor (2), and the other end of the fixed frame (901) is fixed on the second conveyor (3). At the same time, a second motor (902) is installed on the fixed frame (901), the second motor (902) and a second threaded rod (903) connected to the fixed frame (901) by a bearing are connected to each other, and the second threaded rod (903) and the movable frame (904) are threadedly connected, and the movable frame (904) and the guide rod (905) fixed on the fixed frame (901) are slidably connected.

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

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