Fixing auxiliary device for maintenance of computer mainboard

Abstract

The invention belongs to the technical field of computer mainboard maintenance, and particularly relates to a computer mainboard maintenance fixing auxiliary device which comprises a hollow base, a first partition plate is fixedly connected to the inner wall of the hollow base, and a second partition plate, a third partition plate and a fourth partition plate are fixedly connected to the lower surface of the first partition plate and the inner wall of the hollow base. Through the fixing auxiliary device, the function of preventing excessive clamping damage is achieved when the computer mainboard is overhauled, meanwhile, dust on the computer mainboard can be automatically cleaned, the situation that the dust drifts away and pollutes the environment is avoided, and the use reliability of the fixing auxiliary device for computer mainboard overhauling can be improved; the computer mainboard fixing auxiliary device further has a computer mainboard power-on test cooling function, the computer mainboard does not need to be installed back into a computer case, time and labor are saved, the convenience and efficiency of computer mainboard maintenance can be improved, and the labor intensity of workers can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of computer motherboard maintenance, and particularly relates to a fixing and assisting device for computer motherboard maintenance. Background Art

[0002] The computer motherboard is a key component of a computer and is a printed circuit board. It carries main components such as the CPU and memory, and these components communicate and cooperate through the circuits and buses on the motherboard. At the same time, the motherboard also provides various interfaces such as USB, network ports, and audio ports for connecting external devices. For example, the patent authorization announcement number CN206441067U discloses a computer motherboard. During the maintenance process of the motherboard, it is very important to use a fixing and assisting mechanism. There are many and precise components on the motherboard, and the fixing and assisting mechanism can stably fix the motherboard, avoid the motherboard shaking and shifting during maintenance, ensure that the maintenance personnel can operate accurately, and prevent damage to components or inaccurate detection data caused by the change of the motherboard position. For example, the patent authorization announcement number CN219625956U discloses a fixing rack for a computer motherboard for computers.

[0003] At present, during the maintenance process of a computer motherboard, it is necessary to use the screw extrusion of an assisting device for fixation. However, the control of the extrusion force during the screw extrusion and limiting process is unreliable, which is likely to cause excessive extrusion force and damage the conductive circuits on the computer motherboard, increasing the workload of computer motherboard maintenance, and at the same time affecting the efficiency and convenience of computer motherboard maintenance; In addition, before the existing computer motherboard is maintained, the staff also needs to blow the dust attached to the surface of the computer motherboard with a hair dryer. During this process, the dust is likely to float and pollute the environment of the maintenance post, which not only affects the physical health of the staff, but also affects the reliability of the use of the computer motherboard maintenance assisting device.

[0004] Therefore, we propose a fixing and assisting device for computer motherboard maintenance to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixing and assisting device for computer motherboard maintenance in view of the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A fixing and assisting device for computer motherboard maintenance includes a hollow base, and a first partition is fixedly connected to the inner wall of the hollow base. The lower surface of the first partition and the inner wall of the hollow base are fixedly connected with a second partition, a third partition, and a fourth partition; The first partition, the second partition, the third partition, and the fourth partition divide the cavity of the hollow base into an air guide area, an air storage area, an air inlet area, a flow splitting area, and a dust reduction area; The upper surface of the hollow base located in the air guide area is fixedly connected with two hollow covers, and a plurality of air vents are opened on one side of the two hollow covers facing each other; A through hole is opened on the side wall of one of the hollow covers, and a sealing bearing is fixedly connected to the hole wall of the through hole. The inner wall of the inner ring of the sealing bearing is movably connected with an inner square hole tube. The inner wall of the inner square hole tube is movably connected with a square rod. A first clamping strip is fixedly connected to the side end of the square rod. A limiting mechanism for matching with the clamping strip is connected to the outer wall of the other hollow cover; A flipping mechanism is fixedly connected to the outer wall of the inner square hole tube; Threaded holes are opened on the lower surface of the hollow base located in the dust reduction area, and a filtering mechanism is threadedly connected to the hole walls of the threaded holes; An air circulation mechanism is fixedly connected to the lower surface of the hollow base, and a PLC controller is fixedly connected to the upper surface of the hollow base.

[0007] In the above-mentioned auxiliary device for fixing and overhauling a computer motherboard, the limiting mechanism includes a connecting rod. The side end of the connecting rod is connected to the outer wall of the hollow cover through a rolling bearing. A second clamping strip is fixedly connected to the connecting rod away from the outer wall of the hollow cover. A torsion spring is sleeved on the rod wall of the connecting rod, and the two ends of the torsion spring are respectively fixedly connected to the outer walls of the hollow cover and the second clamping strip.

[0008] In the above-mentioned auxiliary device for fixing and overhauling a computer motherboard, the flipping mechanism includes a telescopic pressure sensor fixedly connected to the inner wall of the inner square hole tube. A return spring is sleeved on the outer wall of the telescopic pressure sensor, and the two ends of the return spring are respectively fixedly connected to the inner wall of the inner square hole tube and the rod wall of the square rod. A U-shaped frame is fixedly connected to the outer wall of the hollow cover. An electric push rod is fixedly embedded in the inner wall of the U-shaped frame. The moving end of the electric push rod is fixedly connected with an L-shaped block. A servo motor is fixedly embedded in the upper surface of the L-shaped block. The output end of the servo motor passes through the L-shaped block and is fixedly connected with a first helical gear. A second helical gear meshing with the first helical gear is fixedly sleeved on the outer wall of the inner square hole tube. A conductive slip ring is fixedly connected to the outer walls of the L-shaped block and the inner square hole tube together.

[0009] A connecting sleeve is fixedly sleeved on the rod wall of the square rod, and a connecting groove matching with the connecting sleeve is opened on the inner wall of the inner square hole tube.

[0010] In the above-mentioned auxiliary device for repairing and fixing a computer motherboard, the filtering mechanism includes an external thread ring, an outer wall of the external thread ring is fixedly sleeved with a sealing ring, an inner wall of the external thread ring is fixedly connected with a support mesh plate, an upper surface of the support mesh plate is connected with a composite filter element, an upper surface of the composite filter element is connected with a sponge block, a bottom end of the external thread ring is fixedly sleeved with a hollow block, a side wall of the hollow block is fixedly communicated with an elastic coiled pipe, and an air outlet end of the elastic coiled pipe is fixedly communicated with a jet nozzle.

[0011] In the above-mentioned auxiliary device for repairing and fixing a computer motherboard, the air circulation mechanism includes an air extraction pump fixedly connected to a lower surface of the hollow base. An air outlet end of the air extraction pump passes through an inner wall of the hollow base and is located in the air storage area. The air outlet end of the air extraction pump is fixedly communicated with a first reversing three-way solenoid valve. One of the air outlet ends of the first reversing three-way solenoid valve is fixedly communicated with a connecting pipe. An air outlet end of the connecting pipe passes through an outer wall of the hollow base and is fixedly communicated with a cavity of the dust reduction area. An air inlet end of the air extraction pump is fixedly communicated with an air pipe. An air inlet end of the air pipe is fixedly communicated with a second reversing three-way solenoid valve. One of the air inlet ends of the second reversing three-way solenoid valve passes through the inner wall of the hollow base and is fixedly connected to a bottom end of the first partition plate. The second partition plate and the third partition plate are jointly and fixedly embedded with a vortex tube. An outer surface of the second partition plate is fixedly communicated with a normally closed solenoid valve. An air inlet check valve is fixedly communicated with a lower surface of the first partition plate located in the flow splitting area.

[0012] In the above-mentioned auxiliary device for repairing and fixing a computer motherboard, a cold air end of the vortex tube is located inside the flow splitting area, and a hot air end of the vortex tube passes through the outer wall of the hollow base.

[0013] In the above-mentioned auxiliary device for repairing and fixing a computer motherboard, a plurality of jet nozzles are fixedly communicated with an outer wall of the hollow base located in the air guiding area at the top.

[0014] Compared with the prior art, the advantages of an auxiliary device for repairing and fixing a computer motherboard are as follows: 1. Through the provided electric push rod, telescopic pressure sensor, first clamping strip and limiting mechanism, when the computer motherboard needs to be repaired, first place the computer motherboard between the first clamping strip and the second clamping strip, and the PLC controller controls the electric push rod to start. The electric push rod pushes the first clamping strip to clamp the computer motherboard. During the clamping process, the reaction force of the computer motherboard is transmitted to the telescopic pressure sensor through the square rod. The telescopic pressure sensor sends the received reaction force to the PLC controller in the form of an electrical signal. If the reaction force reaches the preset warning force threshold of the computer motherboard in the PLC controller, the PLC controller then controls the mobile end of the electric push rod to stop pushing the first clamping strip further, avoiding damage to the computer motherboard due to excessive clamping force. This mechanism enables the computer motherboard to have the function of preventing over-clamping damage during repair through the fixed auxiliary device.

[0015] 2. Through the provided filtering mechanism, turning mechanism and air circulation mechanism, after the computer motherboard is clamped, the air circulation mechanism is controlled by the PLC controller to start, and a negative pressure environment is formed at the ventilation holes of the hollow cover. The air flow ejected by the air extraction pump passes through the elastic coiled pipe and the jet nozzle and sprays out. Since the air outlet hole of the jet nozzle is small, the air flow ejected by the jet nozzle has a large pressure. Then the staff moves the jet nozzle to the computer motherboard and uses the high-speed air flow ejected by the jet nozzle to clean the surface of the computer motherboard. Moreover, the dust generated during cleaning is absorbed under the influence of the negative pressure environment at the hollow cover and the ventilation holes and is finally transported to the dust settling area and intercepted by the sponge block and the composite filter element, avoiding dust scattering and polluting the environment, while ensuring the physical health of the staff. And through the turning mechanism, automatic cleaning of the dust on both sides of the computer motherboard can be realized. This mechanism enables the computer motherboard repair fixed auxiliary device to have the function of automatically cleaning dust, and can avoid dust scattering and polluting the environment, not only improving the convenience and efficiency of computer repair, but also improving the reliability of the use of the computer motherboard repair fixed auxiliary device.

[0016] 3. When the maintenance on both sides of the computer motherboard is completed through the set air circulation mechanism and the computer motherboard needs to be powered on for testing, the PLC controller controls the start of the air extraction pump, the first reversing three-way solenoid valve, and the second reversing three-way solenoid valve. After the first reversing three-way solenoid valve and the second reversing three-way solenoid valve are started, they can change the air guiding direction. Then, the air extraction pump inflates the air storage area. Next, the air circulation mechanism generates low-temperature air and transports it to the computer motherboard undergoing the through-test, which can cool down the computer motherboard during the power-on test. Thus, it is not necessary to reinstall the computer motherboard into the computer case for testing. The low-temperature air can prevent the situation that some components on the computer motherboard cannot operate reliably due to the influence of high temperature during operation. This mechanism enables the computer motherboard fixing auxiliary device to have the function of cooling the computer motherboard during the power-on test, and it is not necessary to reinstall the computer motherboard into the computer case, saving time and effort, improving the convenience and efficiency of computer motherboard maintenance, and reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a computer motherboard maintenance and fixing auxiliary device provided by the present invention; Figure 2 is a schematic structural diagram of a partial cross-section of a computer motherboard maintenance and fixing auxiliary device provided by the present invention; Figure 3 is a schematic structural diagram of a flipping mechanism in a computer motherboard maintenance and fixing auxiliary device provided by the present invention; Figure 4 is a schematic structural diagram of a limiting mechanism in a computer motherboard maintenance and fixing auxiliary device provided by the present invention; Figure 5 is a schematic structural diagram of a part of an external thread ring in a computer motherboard maintenance and fixing auxiliary device provided by the present invention; Figure 6 is a schematic structural diagram of a part of an elastic coiled tube in a computer motherboard maintenance and fixing auxiliary device provided by the present invention.

[0018] In the figure: 1 hollow base, 2 first partition board, 3 second partition board, 4 third partition board, 5 fourth partition board, 6 limiting mechanism, 61 connecting rod, 62 second clamping strip, 63 torsion spring, 7 flipping mechanism, 71 telescopic pressure sensor, 72 return spring, 73 U-shaped frame, 74 electric push rod, 75 L-shaped block, 76 servo motor, 77 first helical gear, 78 second helical gear, 79 conductive slip ring, 8 filtering mechanism, 81 external thread ring, 82 sealing ring, 83 supporting mesh plate, 84 composite filter element, 85 sponge block, 86 hollow block, 87 elastic coiled pipe, 88 jet nozzle, 9 air circulation mechanism, 91 air extraction pump, 92 first three-way solenoid valve for reversing, 93 connecting pipe, 94 air pipe, 95 second three-way solenoid valve for reversing, 96 vortex tube, 97 normally closed solenoid valve, 98 intake check valve, 10 air guiding area, 11 air storage area, 12 intake area, 13 shunt area, 14 dust falling area, 15 hollow cover, 16 ventilation hole, 17 sealed bearing, 18 inner square hole pipe, 19 square rod, 20 first clamping strip, 21 PLC controller, 22 connecting sleeve, 23 connecting groove, 24 jet nozzle. Specific embodiments

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Such as Figures 1-6As shown in the figure, a computer motherboard maintenance and fixing auxiliary device includes a hollow base 1. The inner wall of the hollow base 1 is fixedly connected with a first partition 2. The lower surface of the first partition 2 and the inner wall of the hollow base 1 are fixedly connected with a second partition 3, a third partition 4 and a fourth partition 5. The first partition 2, the second partition 3, the third partition 4 and the fourth partition 5 divide the cavity of the hollow base 1 into an air guide area 10, an air storage area 11, an air inlet area 12, a flow distribution area 13 and a dust settling area 14. Multiple air nozzles 24 are fixedly communicated with the outer wall of the air guide area 10 at the top of the hollow base 1. The air flow ejected from the air nozzles 24 can cool the computer motherboard more comprehensively during the power-on test, ensuring the effect of computer motherboard maintenance. Two hollow covers 15 are fixedly communicated with the upper surface of the hollow base 1 in the air guide area 10. A plurality of air holes 16 are opened on the opposite sides of the two hollow covers 15. A through hole is opened on the side wall of one of the hollow covers 15, and the inner wall of the through hole is fixedly connected with a sealed bearing 17. The inner wall of the inner square hole tube 18 is movably connected with a square rod 19. A connecting sleeve 22 is fixedly sleeved on the rod wall of the square rod 19. A connecting groove 23 matching with the connecting sleeve 22 is opened on the inner wall of the inner square hole tube 18. A first clamping strip 20 is fixedly connected to the side end of the square rod 19. A limiting mechanism 6 for matching with the clamping strip is connected to the outer wall of the other hollow cover 15. The limiting mechanism 6 includes a connecting rod 61. The side end of the connecting rod 61 is connected to the outer wall of the hollow cover 15 through a rolling bearing. A second clamping strip 62 fixedly connected to the connecting rod 61 away from the outer wall of the hollow cover 15. A torsion spring 63 is sleeved on the rod wall of the connecting rod 61. The two ends of the torsion spring 63 are respectively fixedly connected to the outer walls of the hollow cover 15 and the second clamping strip 62. The torsion spring 63 can keep the second clamping strip 62 in a horizontal state when it does not clamp the computer motherboard.

[0021] A turning mechanism 7 is fixedly connected to the outer wall of the inner square hole tube 18. The turning mechanism 7 includes a telescopic pressure sensor 71 fixedly connected to the inner wall of the inner square hole tube 18. A return spring 72 is sleeved on the outer wall of the telescopic pressure sensor 71. The two ends of the return spring 72 are respectively fixedly connected to the inner wall of the inner square hole tube 18 and the rod wall of the square rod 19. A U-shaped frame 73 is fixedly connected to the outer wall of the hollow cover 15. An electric push rod 74 is fixedly embedded in the inner wall of the U-shaped frame 73. The moving end of the electric push rod 74 is fixedly connected with an L-shaped block 75. A servo motor 76 is fixedly embedded in the upper surface of the L-shaped block 75. The output end of the servo motor 76 passes through the L-shaped block 75 and is fixedly connected with a first helical gear 77. A second helical gear 78 meshing with the first helical gear 77 is fixedly sleeved on the outer wall of the inner square hole tube 18. A conductive slip ring 79 is fixedly connected to the outer wall of the L-shaped block 75 and the inner square hole tube 18. This mechanism can ensure that the computer motherboard can be conveniently turned over, saving time and effort, and improving the convenience and efficiency of computer motherboard maintenance; The hollow base 1 has threaded holes opened on the lower surface of the dust-removing area 14, and a filtering mechanism 8 is threadedly connected to the inner wall of the threaded holes. The filtering mechanism 8 includes an external thread ring 81. A sealing ring 82 is fixedly sleeved on the outer wall of the external thread ring 81. A support mesh plate 83 is fixedly connected to the inner wall of the external thread ring 81. A composite filter element 84 is connected to the upper surface of the support mesh plate 83. A sponge block 85 is connected to the upper surface of the composite filter element 84. A hollow block 86 is fixedly sleeved at the bottom end of the external thread ring 81. An elastic coiled pipe 87 is fixedly communicated with the side wall of the hollow block 86. The air outlet end of the elastic coiled pipe 87 is fixedly communicated with a jet nozzle 88. This mechanism can prevent dust from spreading and polluting the environment.

[0022] An air circulation mechanism 9 is fixedly connected to the lower surface of the hollow base 1. A PLC controller 21 is fixedly connected to the upper surface of the hollow base 1. The air circulation mechanism 9 includes an air extraction pump 91 fixedly connected to the lower surface of the hollow base 1. The air outlet end of the air extraction pump 91 passes through the inner wall of the hollow base 1 and is located in the air storage area 11. The air outlet end of the air extraction pump 91 is fixedly communicated with a first reversing three-way solenoid valve 92. One of the air outlet ends of the first reversing three-way solenoid valve 92 is fixedly communicated with a connecting pipe 93. The air outlet end of the connecting pipe 93 passes through the outer wall of the hollow base 1 and is fixedly communicated with the cavity of the dust-removing area 14. The air inlet end of the air extraction pump 91 is fixedly communicated with an air pipe 94. The air inlet end of the air pipe 94 is fixedly communicated with a second reversing three-way solenoid valve 95. One of the air inlet ends of the second reversing three-way solenoid valve 95 passes through the inner wall of the hollow base 1 and is fixedly communicated with the bottom end of the first partition plate 2. A vortex tube 96 is fixedly embedded by the second partition plate 3 and the third partition plate 4. The cold air end of the vortex tube 96 is located inside the flow distribution area 13. The hot air end of the vortex tube 96 passes through the outer wall of the hollow base 1. A normally closed solenoid valve 97 is fixedly communicated with the outer surface of the second partition plate 3. An intake check valve 98 is fixedly communicated with the lower surface of the first partition plate 2 located in the flow distribution area 13. This mechanism enables the device to automatically clean dust and cool down during testing of the computer motherboard, thereby improving the convenience and efficiency of computer motherboard maintenance and reducing the labor intensity of workers.

[0023] The operating principle of the present invention is described as follows: When the computer motherboard needs to be repaired, first place the computer motherboard between the first clamping strip 20 and the second clamping strip 62, and the PLC controller 21 controls the electric push rod 74 to start. While the electric push rod 74 pushes the inner square-hole tube 18 to move, the return spring 72 contracts to generate elastic force and pushes the square rod 19 to move. The square rod 19 pushes the first clamping strip 20 to clamp the computer motherboard. During the clamping process, the reaction force of the computer motherboard is transmitted to the telescopic pressure sensor 71 through the square rod 19. The telescopic pressure sensor 71 sends the received reaction force to the PLC controller 21 in the form of an electrical signal. If the reaction force reaches the preset warning force threshold of the computer motherboard in the PLC controller 21, the PLC controller 21 controls the moving end of the electric push rod 74 to stop pushing the first clamping strip 20, so as to prevent the computer motherboard from being damaged by excessive clamping force; Meanwhile, the PLC controller 21 also controls the air extraction pump 91 to start for 3 minutes. The air extraction pump 91 sucks air through the air pipe 94, the second reversing three-way solenoid valve 95, the air guide area 10, the hollow cover 15 and the air permeation holes 16, so as to form a negative pressure environment near the computer motherboard. At the same time, the air sucked by the air extraction pump 91 is conveyed to the dust reduction area 14 through the first reversing three-way solenoid valve 92 and the connecting pipe 93. The air in the dust reduction area 14 is then ejected through the hollow cover 15, the elastic coiled pipe 87 and the jet nozzle 88. Since the air outlet hole of the jet nozzle 88 is small, the airflow ejected by the jet nozzle 88 has a large pressure. Then the staff moves the jet nozzle 88 to the computer motherboard and uses the high-speed airflow ejected by the jet nozzle 88 to clean the surface of the computer motherboard. Moreover, the dust generated by the cleaning is absorbed under the influence of the negative pressure environment at the hollow cover 15 and the air permeation holes 16 and is finally conveyed to the dust reduction area 14 and intercepted by the sponge block 85 and the composite filter element 84, so as to prevent the dust from spreading and polluting the environment and ensure the health of the staff. After the 3-minute countdown is completed, the PLC controller 21 controls the servo motor 76 to rotate. The servo motor 76 drives the first clamping strip to rotate 180 degrees through the first bevel gear 77, the second bevel gear 78, the inner square-hole rod and the square rod 19, so that the computer motherboard is turned over and the dust is cleaned for another 3 minutes. After the dust on both sides of the computer motherboard is cleaned, the PLC controller 21 controls the air extraction pump 91 to stop running, and the servo motor 76 controls the first clamping strip 20 to rotate back 180 degrees, which is convenient for the staff to repair the computer motherboard. This mechanism has the function of preventing excessive clamping damage during the repair of the computer motherboard through the fixed auxiliary device, and can automatically clean the dust on the computer motherboard to avoid dust spreading and polluting the environment. It can not only improve the convenience and efficiency of computer repair, but also improve the reliability of the use of the fixed auxiliary device for computer motherboard repair.

[0024] When the maintenance of both sides of the computer motherboard is completed and the computer motherboard needs to be powered on for testing, at this time, the PLC controller 21 controls the start of the air extraction pump 91, the first reversing three-way solenoid valve 92 and the second reversing three-way solenoid valve 95. After the first reversing three-way solenoid valve 92 and the second reversing three-way solenoid valve 95 are started, they can change the air guiding direction. Then, the air extraction pump 91 sucks the outside air through the air pipe 94 and the second reversing three-way solenoid valve 95, and the air extraction pump 91 transports the outside air to the air storage area 11 of the hollow base 1 through the first reversing three-way solenoid valve 92. After the air storage area 11 receives the air for 15 seconds, as the air gradually enters, the air pressure inside the air storage area 11 increases. And at this time, the PLC controller 21 also controls the normally closed solenoid valve 97 to be powered on and started. The high-pressure air in the air storage area 11 enters the air intake area 12 through the opened normally closed solenoid valve 97 and enters the vortex tube 96. The vortex tube 96 generates two kinds of air with different temperatures based on the vortex motion and energy separation effect of the high-pressure gas, including low-temperature air with a temperature range of 2-8 degrees Celsius. Then, the low-temperature air enters the diversion area 13, and finally enters the air guiding area 10 through the intake check valve 98. Finally, the low-temperature air is sprayed near the computer motherboard through the air permeation holes 16 and the jet nozzles 24, which can cool the computer motherboard under power-on test. Thus, it is not necessary to reinstall the computer motherboard into the computer case for testing. The low-temperature air can avoid the situation that some components on the computer motherboard cannot operate reliably due to the influence of high operating temperature. This mechanism enables the computer motherboard fixing auxiliary device to have the function of cooling the computer motherboard under power-on test, and it is not necessary to reinstall the computer motherboard into the computer case, which saves time and effort, improves the convenience and efficiency of computer motherboard maintenance, and also reduces the labor intensity of the staff.

[0025] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A computer motherboard maintenance and fixing auxiliary device, comprising a hollow base (1), characterized in that: The inner wall of the hollow base (1) is fixedly connected to a first partition (2), and the lower surface of the first partition (2) and the inner wall of the hollow base (1) are fixedly connected to a second partition (3), a third partition (4) and a fourth partition (5); The first partition plate (2), the second partition plate (3), the third partition plate (4) and the fourth partition plate (5) divide the cavity of the hollow base (1) into an air guide area (10), an air storage area (11), an air intake area (12), a flow distribution area (13) and a dust reduction area (14); The hollow base (1) is located on the upper surface of the air guide area (10) and is fixedly connected to two hollow covers (15), and a plurality of air holes (16) are provided on opposite sides of the two hollow covers (15); A through hole is formed on the side wall of one of the hollow covers (15), and a sealing bearing (17) is fixedly connected to the hole wall of the through hole; an inner square hole tube (18) is movably connected to the inner wall of the inner ring of the sealing bearing (17); a square rod (19) is movably connected to the inner wall of the inner square hole tube (18); a first clamping strip (20) is fixedly connected to the side end of the square rod (19); and a limiting mechanism (6) for the clamping strip to cooperate is connected to the outer wall of the other hollow cover (15); The outer wall of the inner square hole tube (18) is fixedly connected with a turning mechanism (7); The hollow base (1) is provided with a threaded hole on its lower surface located in the dust reduction area (14), and a filter mechanism (8) is threadedly connected to the hole wall of the threaded hole; An air circulation mechanism (9) is fixedly connected to the lower surface of the hollow base (1), and a PLC controller (21) is fixedly connected to the upper surface of the hollow base (1).

2. A computer motherboard repair and fixing auxiliary device according to claim 1, characterized in that: The limiting mechanism (6) comprises a connecting rod (61), the side end of the connecting rod (61) being connected to the outer wall of the hollow cover (15) via a rolling bearing, the connecting rod (61) being away from a second clamping strip (62) fixedly connected to the outer wall of the hollow cover (15), the rod wall of the connecting rod (61) being sleeved with a torsion spring (63), and the two ends of the torsion spring (63) being fixedly connected to the outer wall of the hollow cover (15) and the second clamping strip (62), respectively.

3. A computer motherboard repair and fixing auxiliary device according to claim 1, characterized in that: The flip mechanism (7) comprises a telescopic pressure sensor (71) fixedly connected to the inner wall of the inner square hole tube (18); a reset spring (72) is sleeved on the outer wall of the telescopic pressure sensor (71); two ends of the reset spring (72) are respectively fixedly connected to the inner wall of the inner square hole tube (18) and the rod wall of the square rod (19); a U-shaped frame (73) is fixedly connected to the outer wall of the hollow cover (15); an electric push rod (74) is fixedly embedded in the inner wall of the U-shaped frame (73); and the electric push rod (74) is fixedly connected to the outer wall of the hollow cover (15). The moving end of the push rod (74) is fixedly connected to an L-shaped block (75), a servo motor (76) is fixedly embedded on the upper surface of the L-shaped block (75), an output end of the servo motor (76) passes through the L-shaped block (75) and is fixedly connected to a first bevel gear (77), the outer wall of the inner square hole tube (18) is fixedly sleeved with a second bevel gear (78) meshing with the first bevel gear (77), and the L-shaped block (75) and the outer wall of the inner square hole tube (18) are fixedly connected to a conductive slip ring (79).

4. A computer motherboard repair and fixing auxiliary device according to claim 1, characterized in that: A connecting sleeve (22) is fixedly sleeved on the rod wall of the square rod (19), and a connecting groove (23) matching with the connecting sleeve (22) is formed on the inner wall of the inner square hole tube (18).

5. The computer motherboard repair and fixing auxiliary device according to claim 1, characterized in that: The filtering mechanism (8) comprises an external threaded ring (81), the outer wall of the external threaded ring (81) is fixedly sleeved with a sealing ring (82), the inner wall of the external threaded ring (81) is fixedly connected with a supporting mesh plate (83), the upper surface of the supporting mesh plate (83) is connected with a composite filter element (84), the upper surface of the composite filter element (84) is connected with a sponge block (85), the bottom end of the external threaded ring (81) is fixedly sleeved with a hollow block (86), the side wall of the hollow block (86) is fixedly connected with an elastic coil (87), and the air outlet end of the elastic coil (87) is fixedly connected with an air injection nozzle (88).

6. A computer motherboard repair and fixing auxiliary device according to claim 1, characterized in that: The air circulation mechanism (9) comprises an air pump (91) fixedly connected to the lower surface of the hollow base (1); an air outlet end of the air pump (91) passes through the inner wall of the hollow base (1) and is located in the air storage area (11); the air outlet end of the air pump (91) is fixedly connected to a first reversing three-way electromagnetic valve (92); one of the air outlet ends of the first reversing three-way electromagnetic valve (92) is fixedly connected to a connecting pipe (93); the air outlet end of the connecting pipe (93) passes through the outer wall of the hollow base (1) and is fixedly connected to the cavity of the dust reduction area (14); The air inlet end is fixedly connected to an air pipe (94), the air inlet end of the air pipe (94) is fixedly connected to a second reversing three-way solenoid valve (95), one of the air inlet ends of the second reversing three-way solenoid valve (95) passes through the inner wall of the hollow base (1) and is fixedly connected to the bottom end of the first partition (2), the second partition (3) and the third partition (4) are fixedly embedded with a vortex tube (96), the outer surface of the second partition (3) is fixedly connected to a normally closed solenoid valve (97), and the lower surface of the first partition (2) located in the diversion area (13) is fixedly connected to an air inlet check valve (98).

7. A computer motherboard repair and fixing auxiliary device according to claim 6, characterized in that: The cold air end of the vortex tube (96) is located inside the diversion area (13), and the hot air end of the vortex tube (96) passes through the outer wall of the hollow base (1).

8. The computer motherboard repair and fixing auxiliary device according to claim 1, characterized in that: The top of the hollow base (1) is located at an outer wall of the air guide area (10) and is fixedly connected to a plurality of air nozzles (24).

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