Electromagnetic anti-interference device of high-stability high-frequency welding system

Abstract

The invention discloses a high-stability high-frequency welding system electromagnetic anti-interference device, and belongs to the technical field of welding, the high-stability high-frequency welding system electromagnetic anti-interference device comprises a mounting plate, the upper surface of the mounting plate is in bolted connection with a shell, the upper surface of the mounting plate is fixedly connected with a motor, the outer wall of the shell is in bolted connection with a material box, and the surface of the shell is fixedly connected with a circulating cooling pipe; the output end of the motor is fixedly connected with a two-way lead screw, and the surface of the two-way lead screw is in threaded connection with a movable plate. According to the high-stability electromagnetic anti-interference device for the high-frequency welding system, firstly, the mounting plate is mounted in the high-frequency welding system, when the temperature in the shell is too high, the motor is started, the pressing plate does reciprocating rectilinear motion in the vertical direction, then cooling liquid in the material box does reciprocating motion in the material box and the circulating cooling pipe, and the cooling effect is achieved; meanwhile, dust on the surface of the heat dissipation opening can be cleaned, the cleaning roller rotates anticlockwise, dust cannot enter the shell, and stability of internal electronic instruments is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of high-frequency welding technology, specifically to an electromagnetic interference suppression device for a high-stability high-frequency welding system. Background Technology

[0002] High-frequency welding utilizes the thermal effect of high-frequency current to achieve rapid and high-quality joining of metallic materials. High-frequency welding boasts advantages such as high efficiency, speed, and precision, and is adaptable to complex materials. However, during high-frequency welding, the welding arc discharge generates transient currents with peak values ​​reaching thousands of amperes, covering a wide frequency band from 10kHz to 1GHz, which can generate strong electromagnetic interference. Therefore, electromagnetic interference suppression devices are needed to protect the high-frequency welding system. However, when these devices are used in high-frequency welding systems, the high temperatures can affect their operation. To overcome this deficiency, existing technology 1 (Chinese Utility Model Patent Application No. 202121695563.9, filed on 2021-07-23) provides an anti-interference device for high-voltage switches, comprising a high-voltage switchgear body, function buttons, and an information display, addressing the issue that existing anti-interference devices... To address the problem of equipment malfunction caused by external electromagnetic waves, the above structure is designed to isolate external electromagnetic waves during use, preventing them from affecting the device and ensuring its normal operation. A heat dissipation platform is also included to cool the device. Furthermore, existing technology 2 (Chinese Utility Model Patent Application No. 202220216417.1, application date 2022-01-26) describes a novel anti-interference device for digital display instruments. This device uses low-temperature water circulating in a cold water pipe to cool the instrument body, maintaining its performance. Simultaneously, while the cold water cools the instrument body, it drives an impeller to rotate, causing a cross screw to rotate within the mounting box. This drives a wiping plate on the cross screw and guide rod to move back and forth on the display screen, wiping away moisture and preventing water vapor from interfering with the operator's viewing of the displayed values.

[0003] In actual operation, there are many flying impurities in the workshop, which can clog the heat dissipation vents on the surface of the electromagnetic interference suppression device. The device in the above application does not have an efficient self-cleaning and anti-clogging structure during use. As a result, impurities may adhere to the heat dissipation vents of the interference suppression device with the airflow, forming an insulation layer that hinders air circulation and reduces the heat dissipation effect. Summary of the Invention

[0004] The purpose of this invention is to provide an electromagnetic anti-interference device for a high-stability high-frequency welding system, in order to solve the problem mentioned in the background art that, during use, the device does not have an efficient surface self-cleaning and anti-clogging structure, and therefore impurities may adhere to the heat dissipation port of the anti-interference device with the airflow, forming an insulating layer, which hinders airflow and thus reduces the heat dissipation effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An electromagnetic interference suppression device for a high-stability, high-frequency welding system includes a mounting plate. A housing is bolted to the upper surface of the mounting plate, and a motor is fixedly connected to the upper surface of the mounting plate. A material box is bolted to the outer wall of the housing, and a circulating cooling pipe is fixedly connected to the surface of the housing. A bidirectional lead screw is fixedly connected to the output end of the motor, and a movable plate is threaded onto the surface of the bidirectional lead screw. A heat dissipation vent is provided on the surface of the housing, and an air blowing plate is fixedly connected to the surface of the housing. A connecting shaft is connected to the upper surface of the mounting plate via a reversing assembly, and a cleaning roller and a gear are fixedly connected to the surface of the connecting shaft. An upper connecting plate is fixedly connected to the upper surface of the movable plate, and an air bladder is bonded to the lower surface of the upper connecting plate. A force-bearing plate is connected to the lower surface of the upper connecting plate via a lifting assembly.

[0007] Preferably, a limiting post is fixedly connected to the upper surface of the mounting plate, and the limiting post penetrates through the interior of the movable plate. A connecting rod is fixedly connected to the upper surface of the movable plate, and a pressure plate is fixedly connected to the end of the connecting rod.

[0008] Preferably, the surface of the pressure plate is in contact with the inner wall of the material box, the material box is fixedly connected to the circulating cooling pipe, the circulating cooling pipe is symmetrically distributed on both sides of the material box, and the surface of the circulating cooling pipe is in contact with the surface of the outer shell.

[0009] Preferably, the reversing assembly includes a fixed plate fixedly connected to the upper surface of the mounting plate, a connecting shaft rotatably arranged inside the movable plate, and an auxiliary block fixedly connected to the end of the connecting shaft.

[0010] Preferably, the fixed plate has a guide groove inside, the auxiliary block is spherical and located inside the guide groove, and the guide groove is in the shape of the letter "O".

[0011] Preferably, a first rack is fixedly connected to the upper surface of the mounting plate, and a second rack is fixedly connected to the upper surface of the mounting plate, wherein the second rack is located outside the first rack, and the toothed surfaces of the second rack are opposite to those of the first rack.

[0012] Preferably, the heat dissipation vents are evenly distributed on the surface of the housing, and the heat dissipation vents are inclined.

[0013] Preferably, the connecting shaft is fixedly connected to the cam, the lifting assembly includes a lower connecting rod fixedly connected to the lower surface of the upper connecting plate, the front view of the upper connecting plate is an inverted "L" structure, and a force-bearing plate is sleeved on the surface of the lower connecting rod.

[0014] Preferably, the upper surface of the force-bearing plate is attached to the lower surface of the airbag, the end of the lower connecting rod is protruding, and the lower connecting rod is symmetrically distributed on both sides of the force-bearing plate. An air inlet pipe is fixedly connected to the side of the airbag, and an air supply pipe is fixedly connected to the side of the airbag.

[0015] Preferably, a spring shock absorber is fixedly connected to the upper surface of the load-bearing plate, and the other side of the spring shock absorber is fixedly connected to the lower surface of the upper plate. One-way valves are fixedly connected to the surfaces of the air inlet pipe and the air supply pipe. The air supply pipe is connected to the air blowing plate through an external hose, and nozzles are provided at equal intervals on the lower surface of the air blowing plate.

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

[0017] This invention employs a novel structural design. A vertically movable pressure plate allows the coolant to reciprocate within the material tank and circulating cooling pipes, achieving efficient cooling. Simultaneously, a continuously rotating cleaning roller prevents debris from entering the outer casing through the heat dissipation vents during cleaning. Furthermore, an air-blowing cleaning plate ensures rapid removal of impurities, maintaining the outer casing's heat dissipation effect and thus guaranteeing the overall stability of the device. The specific details are as follows:

[0018] (1) The electromagnetic anti-interference device of the high-stability high-frequency welding system first installs the mounting plate in the high-frequency welding system. When the internal temperature of the shell is too high, the motor starts, causing the pressure plate to reciprocate linearly in the vertical direction. Then the coolant inside the material box moves back and forth in the material box and the circulating cooling pipe, which plays a role in efficient cooling. At the same time, it can clean the dust on the surface of the heat dissipation port. Moreover, the rotation direction of the cleaning roller is counterclockwise, which prevents dust from entering the shell and ensures the stability of the internal electronic instruments.

[0019] (2) When the movable plate rises, the movable plate drives the connecting shaft to rise synchronously. At this time, the auxiliary block will move inside the guide groove. Since the guide groove is "O" shaped, the rotation direction of the cleaning roller remains unchanged during the rising and falling of the connecting shaft and gear. It will always work in the direction of the heat dissipation port tilt, preventing impurities from entering the shell through the heat dissipation port, ensuring the cleanliness of the shell and making the electronic devices inside the shell work stably.

[0020] Furthermore, the highest position of the gear as it rises is higher than the position of the uppermost tooth block of the second rack, and the lowest position of the gear as it falls is lower than the position of the lowermost tooth block of the first rack, thus ensuring precise meshing between the gear, the first rack, and the second rack.

[0021] (3) In the process of the rotation of the connecting shaft, the electromagnetic anti-interference device of the high-stability high-frequency welding system will push the force plate intermittently through the cam, so that the force plate will make reciprocating linear motion in the vertical direction under the action of the thrust, the lower connecting rod and the spring shock absorber. Then the force plate will intermittently squeeze the air bag, so that the air bag will intermittently supply air to the air blowing plate through the air supply pipe. At this time, the air blowing plate plays the role of assisting air blowing and cleaning, so that impurities are discharged faster.

[0022] Furthermore, during the operation of the airbag, the one-way valve directs the airflow from the inlet pipe to the airbag, from the airbag to the air supply pipe, and from the air supply pipe to the air inflator, preventing airflow reversal and ensuring the stability of the airbag and air inflator operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the connection structure between the mounting plate and the outer shell of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection structure between the outer casing and the circulating cooling pipe of the present invention;

[0025] Figure 3 This is a schematic diagram of the connection structure between the mounting plate and the motor of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure between the material box and the circulating cooling pipe of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure between the connecting shaft and the auxiliary block of the present invention;

[0028] Figure 6 This is a schematic diagram of the sliding state structure of the auxiliary block of the present invention;

[0029] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0030] Figure 8 This is a schematic diagram of the meshing structure of the gear and the second rack of the present invention;

[0031] Figure 9 This is a schematic diagram of the heat dissipation port distribution structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the connection structure between the connecting shaft and the cam in this invention;

[0033] Figure 11This is a schematic diagram of the working structure of the cam of the present invention.

[0034] In the diagram: 1. Mounting plate; 2. Housing; 3. Motor; 4. Two-way lead screw; 5. Limiting post; 6. Movable plate; 7. Connecting rod; 8. Pressure plate; 9. Material box; 10. Circulating cooling pipe; 11. First rack; 12. Connecting shaft; 13. Gear; 14. Fixing plate; 15. Guide groove; 16. Second rack; 17. Cleaning roller; 18. Auxiliary block; 19. Upper connecting plate; 20. Cam; 21. Heat dissipation port; 22. Air blowing plate; 23. Force plate; 24. Airbag; 25. Air inlet pipe; 26. Air supply pipe; 27. Lower connecting rod; 28. Spring shock absorber. Detailed Implementation

[0035] 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.

[0036] Please see Figures 1-11 The present invention provides the following technical solution: an electromagnetic anti-interference device for a high-stability high-frequency welding system.

[0037] Example 1: The vertically movable pressure plate 8 allows the coolant to flow back and forth between the material tank 9 and the circulating cooling pipe 10, thus achieving efficient cooling. Figures 1-4 As shown, the assembly includes a mounting plate 1, a housing 2 bolted to the upper surface of the mounting plate 1, a motor 3 fixedly connected to the upper surface of the mounting plate 1, a material box 9 bolted to the outer wall of the housing 2, and a circulating cooling pipe 10 fixedly connected to the surface of the housing 2; a bidirectional lead screw 4 fixedly connected to the output end of the motor 3, and a movable plate 6 threadedly connected to the surface of the bidirectional lead screw 4; a connecting shaft 12 connected to the upper surface of the mounting plate 1 via a reversing assembly, a cleaning roller 17 fixedly connected to the surface of the connecting shaft 12, and a gear 13 fixedly connected to the surface of the connecting shaft 12.

[0038] The upper surface of the mounting plate 1 is fixedly connected to the limiting post 5, and the limiting post 5 penetrates the interior of the movable plate 6. The upper surface of the movable plate 6 is fixedly connected to the connecting rod 7, and the end of the connecting rod 7 is fixedly connected to the pressure plate 8. The surface of the pressure plate 8 is in contact with the inner wall of the material box 9. The material box 9 is fixedly connected to the circulating cooling pipe 10, and the circulating cooling pipe 10 is symmetrically distributed on both sides of the material box 9. The surface of the circulating cooling pipe 10 is in contact with the surface of the outer shell 2.

[0039] First, the mounting plate 1 is installed in the high-frequency welding system. When the internal temperature of the outer shell 2 is too high, the motor 3 starts. When the motor 3 is working, the movable plate 6, under the action of the bidirectional lead screw 4 and the limiting column 5, makes a reciprocating linear motion in the vertical direction. When the movable plate 6 rises, it drives the pressure plate 8 to rise through the connecting rod 7. When the movable plate 6 falls, the pressure plate 8 falls synchronously. The above process is repeated. The pressure plate 8 makes a reciprocating linear motion in the vertical direction. When the pressure plate 8 rises, the coolant is pushed from the material tank 9 into the circulating cooling pipe 10. When the pressure plate 8 falls, the coolant is drawn back from the circulating cooling pipe 10 under the action of negative pressure. Thus, the coolant inside the material tank 9 moves back and forth inside the material tank 9 and the circulating cooling pipe 10, which plays a role in efficient cooling and keeps the outer shell 2 at the optimal working temperature.

[0040] Example 2: Unlike Example 1, by using a reversing component, the connecting shaft 12 is always in a unidirectional rotation state, ensuring stable operation of the cleaning roller 17. Figures 5-9 As shown, the reversing assembly includes a fixed plate 14 fixedly connected to the upper surface of the mounting plate 1, a connecting shaft 12 rotatably disposed inside the movable plate 6, and an auxiliary block 18 fixedly connected to the end of the connecting shaft 12. A guide groove 15 is provided inside the fixed plate 14. The auxiliary block 18 is spherical and located inside the guide groove 15, which is in the shape of the letter "O".

[0041] The upper surface of the mounting plate 1 is fixedly connected to a first rack 11, and the upper surface of the mounting plate 1 is fixedly connected to a second rack 16. The second rack 16 is located outside the first rack 11, and the tooth blocks of the second rack 16 and the first rack 11 are opposite each other. The surface of the outer shell 2 is provided with heat dissipation vents 21. The heat dissipation vents 21 are evenly distributed on the surface of the outer shell 2, and the heat dissipation vents 21 are inclined.

[0042] When the movable plate 6 rises, it drives the connecting shaft 12 to rise synchronously. At this time, the auxiliary block 18 will move inside the guide groove 15 on the surface of the fixed plate 14. Since the guide groove 15 is "O" shaped, the connecting shaft 12 slides to the left inside the auxiliary block 18 and the guide groove 15 (initially, the auxiliary block 18 is located slightly to the left of the guide groove 15, such as...). Figure 5 As shown), gear 13 and the first rack 11 mesh. When the movable plate 6 drives the connecting shaft 12 to the uppermost end of the guide groove 15, the connecting shaft 12 and gear 13 slide to the right under the action of the guide groove 15. At this time, gear 13 moves to the right synchronously and disengages from the first rack 11. Gear 13 then meshes with the second rack 16. That is, during the rising and falling of the connecting shaft 12 and gear 13, the rotation direction of the cleaning roller 17 remains unchanged, and it always works in the direction of inclination of the heat dissipation vent 21 (in Figure 9In the middle, from the left to right perspective, the cleaning roller 17 always rotates counterclockwise, that is, the cleaning roller 17 will efficiently clean the dust on the heat dissipation port 21 and the surface of the filter screen, while preventing impurities from entering the housing 2 through the heat dissipation port 21, ensuring the cleanliness of the inside of the housing 2, and ensuring the stable operation of the electronic components inside the housing 2.

[0043] Example 3: Unlike Example 2, the lifting assembly allows the force plate 23 to intermittently compress the airbag 24, causing the airbag 24 to intermittently supply air to the air blowing plate 22. This allows the air blowing plate 22 to perform airflow-assisted cleaning, such as... Figure 10 and Figure 11 As shown, an upper connecting plate 19 is fixedly connected to the upper surface of the movable plate 6, and an airbag 24 is bonded to the lower surface of the upper connecting plate 19. The lower surface of the upper connecting plate 19 is connected to a force plate 23 via a lifting assembly. An air blowing plate 22 is fixedly connected to the surface of the outer shell 2. A cam 20 is fixedly connected to the surface of the connecting shaft 12. The lifting assembly includes a lower connecting rod 27 fixedly connected to the lower surface of the upper connecting plate 19. The front of the upper connecting plate 19 is an inverted "L" structure, and a force plate 23 is sleeved and connected to the surface of the lower connecting rod 27.

[0044] The upper surface of the force plate 23 is in contact with the lower surface of the airbag 24. The end of the lower connecting rod 27 is protruding and the lower connecting rod 27 is symmetrically distributed on both sides of the force plate 23. An air inlet pipe 25 is fixedly connected to the side of the airbag 24, and an air supply pipe 26 is fixedly connected to the side of the airbag 24. A spring shock absorber 28 is fixedly connected to the upper surface of the force plate 23, and the other side of the spring shock absorber 28 is fixedly connected to the lower surface of the upper connecting plate 19. One-way valves are fixedly connected to the surfaces of the air inlet pipe 25 and the air supply pipe 26. The air supply pipe 26 is connected to the air blowing plate 22 through an external hose, and nozzles are evenly spaced on the lower surface of the air blowing plate 22.

[0045] During the rotation of the connecting shaft 12, the connecting shaft 12 intermittently pushes the force plate 23 via the cam 20. When the force plate 23 is pushed, it slides upward on the surface of the lower connecting rod 27, at which point the spring damper 28 is compressed. When the force plate 23 is not pushed, it descends under the action of the spring damper 28. Repeating the above process, the force plate 23 reciprocates in a straight line in the vertical direction under the action of the thrust, the lower connecting rod 27, and the spring damper 28. Consequently, the force plate 23 intermittently compresses the airbag 24. When the airbag 24 is compressed, it is supplied with gas. Air tube 26 and external hose supply air to air blowing plate 22. When airbag 24 is not compressed, airbag 24 inhales and expands through air inlet tube 25. The above process is repeated. Airbag 24 intermittently supplies air to air blowing plate 22 through air supply tube 26. At this time, air blowing plate 22 plays an auxiliary role in air blowing and cleaning, accelerating the removal of impurities. At the same time, during the operation of airbag 24, one-way valve makes the airflow direction from air inlet tube 25 to airbag 24, from airbag 24 to air supply tube 26, and from air supply tube 26 to air blowing plate 22, so that airflow backflow will not occur, ensuring the stability of the operation of airbag 24 and air blowing plate 22.

[0046] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electromagnetic interference suppression device for a high-stability high-frequency welding system, comprising a mounting plate (1), wherein a housing (2) is bolted to the upper surface of the mounting plate (1), and a motor (3) is fixedly connected to the upper surface of the mounting plate (1), and a material box (9) is bolted to the outer wall of the housing (2), and a circulating cooling pipe (10) is fixedly connected to the surface of the housing (2); characterized in that: The output end of the motor (3) is fixedly connected to a bidirectional lead screw (4), and a movable plate (6) is threadedly connected to the surface of the bidirectional lead screw (4). The surface of the outer shell (2) is provided with a heat dissipation vent (21), and an air blowing plate (22) is fixedly connected to the surface of the outer shell (2). The upper surface of the mounting plate (1) is connected to a connecting shaft (12) via a reversing assembly, and a cleaning roller (17) is fixedly connected to the surface of the connecting shaft (12), and a gear (13) is fixedly connected to the surface of the connecting shaft (12). The upper surface of the movable plate (6) is fixedly connected to an upper connecting plate (19), and the lower surface of the upper connecting plate (19) is bonded to an airbag (24), and the lower surface of the upper connecting plate (19) is connected to a force plate (23) through a lifting assembly.

2. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 1, characterized in that: The upper surface of the mounting plate (1) is fixedly connected to a limiting post (5), and the limiting post (5) penetrates the interior of the movable plate (6). The upper surface of the movable plate (6) is fixedly connected to a connecting rod (7), and the end of the connecting rod (7) is fixedly connected to a pressure plate (8).

3. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 2, characterized in that: The surface of the pressure plate (8) is in contact with the inner wall of the material box (9), and the material box (9) is fixedly connected to the circulating cooling pipe (10). The circulating cooling pipe (10) is symmetrically distributed on both sides of the material box (9), and the surface of the circulating cooling pipe (10) is in contact with the surface of the outer shell (2).

4. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 1, characterized in that: The reversing assembly includes a fixed plate (14) fixedly connected to the upper surface of the mounting plate (1), and the connecting shaft (12) is rotatably arranged inside the movable plate (6), and an auxiliary block (18) is fixedly connected to the end of the connecting shaft (12).

5. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 4, characterized in that: The fixed plate (14) has a guide groove (15) inside. The auxiliary block (18) is spherical and located inside the guide groove (15). The guide groove (15) is in the shape of the letter "O".

6. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 1, characterized in that: The upper surface of the mounting plate (1) is fixedly connected to a first rack (11), and the upper surface of the mounting plate (1) is fixedly connected to a second rack (16), and the second rack (16) is located outside the first rack (11), and the second rack (16) is opposite to the tooth block surface of the first rack (11).

7. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 1, characterized in that: The heat dissipation vents (21) are evenly distributed on the surface of the outer shell (2), and the heat dissipation vents (21) are inclined.

8. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 1, characterized in that: The surface of the connecting shaft (12) is fixedly connected to the cam (20), and the lifting assembly includes a lower connecting rod (27) fixedly connected to the lower surface of the upper connecting plate (19). The front of the upper connecting plate (19) is viewed as an inverted "L" structure, and the surface of the lower connecting rod (27) is sleeved with the force plate (23).

9. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 8, characterized in that: The upper surface of the force plate (23) is in contact with the lower surface of the airbag (24). The end of the lower connecting rod (27) is protruding and the lower connecting rod (27) is symmetrically distributed on both sides of the force plate (23). An air inlet pipe (25) is fixedly connected to the side of the airbag (24), and an air supply pipe (26) is fixedly connected to the side of the airbag (24).

10. The electromagnetic anti-interference device for a high-stability high-frequency welding system according to claim 9, characterized in that: A spring damper (28) is fixedly connected to the upper surface of the force plate (23), and the other side of the spring damper (28) is fixedly connected to the lower surface of the upper connecting plate (19). One-way valves are fixedly connected to the surface of the air inlet pipe (25) and the surface of the air supply pipe (26). The air supply pipe (26) is connected to the air blowing plate (22) through an external hose. The lower surface of the air blowing plate (22) is provided with nozzles at equal intervals.

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