A new energy automobile part arc welding machine

Abstract

This invention discloses an arc welding machine for new energy vehicle parts, relating to the field of welding equipment manufacturing technology. The arc welding machine includes a lifting handle fixedly connected to its top, a connection port on one side, a plug fixedly connected to its outer wall, a fan inside, and an opening / closing mechanism on its left side. This opening / closing mechanism completely isolates the interior of the arc welding machine from the outside, while the telescopic plate and baffle plate fit together to form a naturally sealed space inside the machine. This allows for easy opening and closing of the ventilation slots, preventing blockage and ensuring proper heat dissipation. Simultaneously, it automatically closes the connection between the arc welding machine and the outside, preventing dust from being drawn into the machine by the fan during ventilation slot cleaning and preventing external dust and moisture from entering during cleaning.

Description

Technical Field

[0001] This invention relates to the field of welding equipment manufacturing technology, specifically to an arc welding machine for new energy vehicle parts. Background Technology

[0002] Automotive parts are the various units that make up the overall automotive parts processing and the products that serve automotive parts processing. An arc welding machine used for automotive parts, also known as an arc welding transformer, is a special type of transformer that converts AC power from the grid into low-voltage AC power suitable for arc welding. It consists of a main transformer and the necessary regulating components and indicating devices, etc.

[0003] The patent application with publication number CN110977119A describes an arc welding machine for new energy vehicle parts, which relates to the field of welding equipment manufacturing technology. It includes an arc welding machine body, a heat sink, a disassembly mechanism, a connection mechanism and a reset mechanism. The disassembly mechanism is located on one side surface of the heat sink and includes a handle, with one side of the handle located outside the heat sink.

[0004] Currently, arc welding machines used in welding new energy vehicles should not be used at an altitude of more than 1,000 meters and the ambient air temperature should not exceed 40 degrees Celsius. Therefore, arc welding machines have strict temperature requirements. When dirt accumulates in the ventilation and heat exchange ports during long-term operation, it will lead to a decrease in heat exchange efficiency. When cleaning the heat exchange ports, a large amount of dust is easily detached and drawn into the internal fan, causing dust to fall into the arc welding machine and affecting its use. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an arc welding machine for new energy vehicle components, thereby solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: an arc welding machine for new energy vehicle parts, comprising an arc welding machine, a lifting handle fixedly connected to the top of the arc welding machine, a connection port provided on one side of the arc welding machine, a plug fixedly connected to the outer wall of the arc welding machine, a fan provided inside the arc welding machine, and an opening and closing mechanism provided on the left side of the arc welding machine.

[0007] The opening and closing mechanism includes:

[0008] The opening and closing flip plate is a square plate structure. A shield is fixedly connected to one side of the opening and closing flip plate. A ventilation groove is opened inside the opening and closing flip plate and the inside of the ventilation groove is connected to the inside of the shield. The opening and closing flip plate is used to isolate the inside of the arc welding machine from the outside.

[0009] The connecting rod is L-shaped, with one end fixedly connected to one side of the opening and closing flip plate. A rotating shaft is fixedly connected to the inner wall of the connecting rod, and a hinge block is rotatably connected to the outer wall of the rotating shaft. One end of the hinge block is fixedly connected to one side of the arc welding machine. The rotating shaft is used to connect the connecting rod and the hinge block and to allow them to rotate relative to each other. The connecting rod is used to connect the opening and closing flip plate and the rotating shaft.

[0010] Preferably, a sliding strip is fixedly connected to the outer wall of the opening and closing flip plate, and a sliding plate is slidably connected to the outer wall of the sliding strip. The sliding plate is slidably connected to the opening and closing flip plate through the sliding strip. The sliding strip is used to allow the sliding plate to slide on the outer wall of the opening and closing flip plate and to prevent the sliding plate from falling off the outer wall of the opening and closing flip plate.

[0011] Preferably, a rubber pull rope is fixedly connected to the outer wall of the sliding plate, and a fixing block is fixedly connected to the other end of the rubber pull rope. The rubber pull rope is elastic, and a baffle is fixedly connected to the top of the inner wall of the arc welding machine.

[0012] Preferably, a telescopic plate is fixedly connected to the bottom of the fixed block, the two sides of the telescopic plate are slidably connected to the two sides of the inner wall of the arc welding machine, and the bottom of the telescopic plate is fixedly connected to the bottom of the inner wall of the arc welding machine.

[0013] Preferably, the groove on the inner wall of the shield is an arc-shaped downward inclined groove, and the outer wall of the opening and closing flip plate is provided with a limiting mechanism, which includes a magnetic block.

[0014] Preferably, one side of the magnetic block is fixedly connected to one side of the opening and closing flip plate, the outer wall of the magnetic block is in contact with the outer wall of the sliding plate, and the magnetic block and the sliding plate are magnetic.

[0015] Preferably, the magnetic attraction between the magnetic block and the sliding plate on the side closest to each other is that of opposite poles attracting each other. A connecting long plate is fixedly connected to the outer wall of the sliding plate, and a brush bristle is fixedly connected to one side of the connecting long plate. The brush bristle is elastic.

[0016] Preferably, the length of the brush bristles can extend into the inner wall of the shield, and a limiting baffle is fixedly connected to one side of the opening and closing flip plate. The limiting baffle is used to limit the sliding of the sliding plate and prevent the sliding plate from slipping off the opening and closing flip plate.

[0017] This invention provides an arc welding machine for new energy vehicle parts, which has the following beneficial effects:

[0018] 1. This invention, by setting up an opening and closing mechanism, uses a telescopic plate that extends and retracts, with its bottom fixed to the bottom of the arc welding machine's inner wall. This allows the sliding plate to pull the rubber rope and the fixing block to rise synchronously with the telescopic plate as the opening and closing flip plate is opened. This ensures that the telescopic plate fully extends after the opening and closing flip plate is fully opened, completely isolating the inside of the arc welding machine from the outside. The telescopic plate also fits against the baffle, forming a naturally sealed space inside the arc welding machine. This allows for easy opening and closing of the opening and closing flip plate to clean the ventilation slots, preventing blockages that could affect the heat dissipation inside the arc welding machine. It also automatically closes the connection between the arc welding machine and the outside, preventing dust from overflowing and being drawn into the arc welding machine by the fan during ventilation slot cleaning. It also prevents external dust and moisture from entering during cleaning.

[0019] 2. This invention, by setting up an opening and closing mechanism, allows the sliding plate, rubber rope, fixing block, and telescopic plate to also descend and reset after the opening and closing flip plate is rotated and lowered after cleaning. This enables the telescopic plate to actively descend after the opening and closing flip plate is closed, opening the communication channel between the arc welding machine and the outside. When the opening and closing flip plate is closed, the ventilation slot naturally facilitates ventilation and heat exchange between the inside and outside. The operation is simple; the above work can be achieved by simply holding the shielding cover up and closing the opening and closing flip plate. This makes the cleaning efficiency higher and the staff more motivated to clean the ventilation slot. It effectively reduces the problem of low heat exchange efficiency caused by not cleaning the ventilation slot for a long time, which could lead to high temperature damage inside the arc welding machine.

[0020] 3. By setting a limiting mechanism, this invention allows for automatic brushing of the interior of each ventilation slot whenever the shield needs to be opened for cleaning. When the shield is pulled to a position close to 90 degrees, the rapid movement of the brush bristles automatically brushes the interior of each ventilation slot. While the brush is brushing, the telescopic plate extends into one side of the baffle and fits against the baffle to close the connection between the arc welding machine and the outside. This completes the automatic cleaning of the ventilation slots and avoids the problem of a large amount of dust generated during automatic cleaning being sucked into the arc welding machine.

[0021] 4. By setting a limiting mechanism, this invention also utilizes the same method of rapid brushing to effectively improve the cleaning power inside the ventilation slot. Furthermore, by repeatedly opening and closing the flip plate, the automatic cleaning function using the sliding plate, connecting plate, and brush bristles can be completed without the need for manual cleaning tools, thus completing the cleaning work without contaminating the inside of the arc welding machine.

[0022] 5. This invention, by setting a limiting mechanism, allows the opening and closing of the flip plate to be repeated, completing the reciprocating lifting and lowering of the sliding plate. The brush bristles are used to clean the ventilation slot. When the opening and closing flip plate automatically cleans the ventilation slot, the centrifugal inertia generated by the opening and closing flip plate will naturally throw out the residue in the ventilation slot after it is brushed off by the brush bristles. The centrifugal force makes it easier for the residue to detach and adhere, which also improves the cleaning effect. In addition, the airflow generated by the opening and closing flip plate will carry the swept-off particles away from the arc welding machine, reducing the problem of them being sucked back into the machine after the opening and closing flip plate is closed.

[0023] 6. By setting a limiting mechanism, the present invention ensures that during the self-descending and resetting process of the telescopic plate, each section of the telescopic plate will push off the dust adhering to the outer wall as it retracts, and the dust will fall into the area between the opening and closing flip plate and the telescopic plate. The telescopic plate will block the dust and prevent it from entering the arc welding machine. When the opening and closing flip plate is opened later, the dust between the telescopic plate and the opening and closing flip plate can be cleaned. By utilizing the self-cleaning function of the telescopic plate retraction and the blocking effect of the telescopic plate on the dust, the problem of dust spreading into the arc welding machine after the telescopic plate resets is effectively avoided. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic cross-sectional view of the opening and closing mechanism of the present invention. Figure 1 ;

[0026] Figure 3 This is a schematic cross-sectional view of the opening and closing mechanism of the present invention. Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the opening and closing mechanism of the present invention. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the opening and closing mechanism of the present invention. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the disassembled structure of the opening and closing mechanism of the present invention;

[0030] Figure 7 This is the present invention. Figure 4 Enlarged view of point A;

[0031] Figure 8 The motion state of the opening and closing mechanism of this invention Figure 1 ;

[0032] Figure 9 The motion state of the opening and closing mechanism of this invention Figure 2 ;

[0033] Figure 10 The motion state of the opening and closing mechanism of this invention Figure 3 ;

[0034] Figure 11 This is the present invention. Figure 4 Enlarged view of point B;

[0035] Figure 12 This is a schematic diagram of the limiting mechanism structure of the present invention. Figure 1 ;

[0036] Figure 13 This is a schematic diagram of the limiting mechanism structure of the present invention. Figure 2 .

[0037] In the diagram: 1 Lifting handle, 2 Arc welding machine, 3 Opening and closing mechanism, 301 Opening and closing flip plate, 302 Shielding cover, 303 Hinge block, 304 Connecting rod, 305 Rotating shaft, 307 Ventilation slot, 308 Sliding strip, 309 Sliding plate, 310 Rubber pull rope, 311 Fixing block, 312 Telescopic plate, 313 Baffle, 4 Limiting mechanism, 401 Magnetic block, 402 Connecting long plate, 403 Brush bristles, 404 Limiting baffle, 5 Connecting port, 6 Plug, 7 Fan. Detailed Implementation

[0038] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: an arc welding machine for new energy vehicle parts, including an arc welding machine 2, a lifting handle 1 fixedly connected to the top of the arc welding machine 2, a connection port 5 provided on one side of the arc welding machine 2, a plug 6 fixedly connected to the outer wall of the arc welding machine 2, a fan 7 provided inside the arc welding machine 2, and an opening and closing mechanism 3 provided on the left side of the arc welding machine 2.

[0039] The opening and closing mechanism 3 includes:

[0040] The opening and closing flip plate 301 is a square plate structure. A shield 302 is fixedly connected to one side of the opening and closing flip plate 301. A ventilation groove 307 is opened inside the opening and closing flip plate 301. The ventilation groove 307 is connected to the inside of the shield 302. The opening and closing flip plate 301 is used to isolate the inside of the arc welding machine 2 from the outside.

[0041] The connecting rod 304 is L-shaped. One end of the connecting rod 304 is fixedly connected to one side of the opening and closing flip plate 301. A rotating shaft 305 is fixedly connected to the inner wall of the connecting rod 304. A hinge block 303 is rotatably connected to the outer wall of the rotating shaft 305. One end of the hinge block 303 is fixedly connected to one side of the arc welding machine 2. The rotating shaft 305 is used to connect the connecting rod 304 and the hinge block 303 and to allow the two to rotate relative to each other. The connecting rod 304 is used to connect the opening and closing flip plate 301 and the rotating shaft 305.

[0042] When in use, plug the connecting cable into the connector 5, then plug the plug 6 on the arc welding machine 2 into the socket, and then start the arc welding machine 2. Use the current generated by it to perform electric welding work on the relevant parts of new energy vehicles. When welding the parts, the fan 7 in the arc welding machine 2 exhausts the air inside the arc welding machine 2 to the outside, while the outside air is drawn into the arc welding machine 2 through the ventilation slot 307 in the opening and closing flip plate 301 on the other side. At the same time, the several shields 302 on the outer wall of the opening and closing flip plate 301 prevent the splashing of particles and rainwater, and the several slender ventilation slots 307 filter large dust particles.

[0043] Example 2: Please refer to Figure 1-10 Based on Embodiment 1, the present invention provides a technical solution: a sliding strip 308 is fixedly connected to the outer wall of the opening and closing flip plate 301, and a sliding plate 309 is slidably connected to the outer wall of the sliding strip 308. The sliding plate 309 is slidably connected to the opening and closing flip plate 301 through the sliding strip 308. The sliding strip 308 is used to allow the sliding plate 309 to slide on the outer wall of the opening and closing flip plate 301 and to prevent the sliding plate 309 from falling off the outer wall of the opening and closing flip plate 301.

[0044] A rubber pull rope 310 is fixedly connected to the outer wall of the sliding plate 309, and a fixing block 311 is fixedly connected to the other end of the rubber pull rope 310. The rubber pull rope 310 is elastic, and a baffle 313 is fixedly connected to the top of the inner wall of the arc welding machine 2.

[0045] The bottom of the fixed block 311 is fixedly connected to the telescopic plate 312. The two sides of the telescopic plate 312 are slidably connected to the two sides of the inner wall of the arc welding machine 2, and the bottom of the telescopic plate 312 is fixedly connected to the bottom of the inner wall of the arc welding machine 2.

[0046] After prolonged operation of the arc welding machine 2, if particles appear inside the ventilation slot 307 or stains adhere due to high air humidity, this can be addressed by holding the bottommost shield 302 on the opening and closing tilting plate 301 and lifting it upwards. This causes the shield 302 and the opening and closing tilting plate 301 to rise synchronously. As the opening and closing tilting plate 301 rises, it drives the connecting rod 304 and the rotating shaft 305 to rotate synchronously. The rotating shaft 305 rotates within the hinge block 303, thus causing the opening and closing tilting plate 301 and the shield 302 to rotate around the rotating shaft 305. The rotating opening and closing mechanism raises the plate 301, exposing the ventilation slot 307 inside. This allows for the cleaning of any blockages within the ventilation slot 307. Simultaneously, pulling the shield 302 raises the plate 301, which in turn pulls the rubber cord 310 via the sliding plate 309. As the plate and sliding plate 301 and 309 rise and open, the end of the rubber cord 310 connected to the sliding plate 309 begins to rise, pulling the cord. The dynamic deformation, through its own elasticity, naturally pulls the fixed block 311. The fixed block 311 drives the telescopic plate 312 to slide and rise along both sides of the inner wall of the arc welding machine 2. Through the extension and retraction of the telescopic plate 312 and the bottom of the telescopic plate 312 being fixed to the bottom of the inner wall of the arc welding machine 2, it is achieved that when the opening and closing flip plate 301 is opened, the sliding plate 309 pulls the rubber rope 310 and the fixed block 311 and telescopic plate 312 rise synchronously, so that after the opening and closing flip plate 301 is fully opened, the telescopic plate 312 is also fully extended, thus allowing the arc welding machine 2 to fully extend. The interior and exterior are completely isolated, and the telescopic plate 312 and the baffle 313 fit together to form a natural sealed space inside the arc welding machine 2. This allows the opening and closing flip plate 301 to be opened and closed freely for easy cleaning of the ventilation slot 307. This prevents the ventilation slot 307 from being blocked and affecting the heat dissipation inside the arc welding machine 2. At the same time, it automatically closes the connection between the arc welding machine 2 and the outside world, avoiding the problem of dust overflowing and being directly drawn into the arc welding machine 2 by the fan 7 during the cleaning of the ventilation slot 307. It also prevents the entry of dust and moisture from the outside during the cleaning process.

[0047] After cleaning, the opening and closing flip plate 301 is rotated down and reset. The sliding plate 309, rubber rope 310, fixing block 311, and telescopic plate 312 also descend and reset. This allows the telescopic plate 312 to actively descend after the opening and closing flip plate 301 is closed, opening the communication channel between the arc welding machine 2 and the outside. When the opening and closing flip plate 301 is closed, the ventilation slot 307 is used to achieve ventilation and heat exchange between the inside and outside. The operation is simple; the above work can be achieved by simply holding the shield 302 up and closing the opening and closing flip plate 301. This makes the cleaning efficiency higher and the staff more motivated to clean the ventilation slot 307. It effectively reduces the problem of low heat exchange efficiency caused by not cleaning the ventilation slot 307 for a long time, which could lead to high temperature damage inside the arc welding machine 2.

[0048] Example 3: Please refer to Figure 1-13 Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: the groove on the inner wall of the shield 302 is an arc-shaped downward inclined groove, and the outer wall of the opening and closing flip plate 301 is provided with a limiting mechanism 4, which includes a magnetic block 401.

[0049] One side of the magnetic block 401 is fixedly connected to one side of the opening and closing flip plate 301, the outer wall of the magnetic block 401 is in contact with the outer wall of the sliding plate 309, and the magnetic block 401 and the sliding plate 309 are magnetic.

[0050] The magnetic blocks 401 and the sliding plate 309 are attracted to each other by opposite poles. A connecting plate 402 is fixedly connected to the outer wall of the sliding plate 309. A brush bristle 403 is fixedly connected to one side of the connecting plate 402. The brush bristle 403 has elasticity.

[0051] The length of the bristles 403 can extend into the inner wall of the shield 302. A limiting baffle 404 is fixedly connected to one side of the opening and closing flip plate 301. The limiting baffle 404 is used to limit the sliding of the sliding plate 309 to prevent the sliding plate 309 from slipping off the opening and closing flip plate 301.

[0052] When the flip-top plate 301 flips upwards, the sliding plate 309 maintains a stable magnetic attraction with the magnetic block 401 through the attraction between opposite poles. This allows the rubber pull rope 310 to pull the fixed block 311 and the telescopic plate 312 upwards together. Simultaneously, the sliding plate 309 gradually rises and begins to move away from the fixed block 311 and the telescopic plate 312. At this point, the rubber pull rope 310 is stretched and deformed until the flip-top plate 301 opens to approximately ninety degrees. At this point, the position of the fixed block 311 and the telescopic plate 312 pulled by the rubber pull rope 310 also changes. When the opening and closing flip plate 301 is nearly horizontal, the tension of the rubber pull rope 310 is at its maximum. Therefore, the elastic force of the rubber pull rope 310 will still pull the sliding plate 309. This elastic force is greater than the magnetic attraction between the sliding plate 309 and the magnetic block 401, causing the sliding plate 309 to disengage from the magnetic attraction and be quickly pulled by the rebound force of the rubber pull rope 310. This causes the sliding plate 309 to quickly slide on the sliding bar 308 and move closer to the fixed block 311, thus achieving passage from the bottom of the opening and closing flip plate 301. The air duct 307 slides quickly to the uppermost position. As the sliding plate 309 slides, it drives the bristles 403 on one side of the connecting plate 402 to continuously extend into each air duct 307, cleaning each one. Then, whenever the air duct 307 needs to be pulled open for cleaning, when pulled to approximately a 90-degree angle, the rapid movement of the bristles 403 automatically brushes the inside of each air duct 307. While the bristles 403 are brushing, the telescopic plate 312 has already... By extending into one side of the baffle 313 and fitting against the baffle 313, the communication channel between the arc welding machine 2 and the outside is closed. This also naturally avoids the problem of a large amount of dust generated during brushing being sucked into the arc welding machine 2. Similarly, the rapid brushing in this way effectively improves the cleaning power inside the ventilation slot 307. Furthermore, by repeatedly opening and closing the flip plate 301, the automatic cleaning function of the sliding plate 309, connecting long plate 402, and brush bristles 403 can be completed. The cleaning work can be completed without contaminating the inside of the arc welding machine 2 without the need for manual cleaning tools.

[0053] After the sliding plate 309 disengages from the magnetic block 401 and slides quickly to the other side of the opening and closing flip plate 301, the opening and closing flip plate 301 is closed and reset. Then, the sliding plate 309 and the telescopic plate 312 naturally descend to their original positions due to gravity. The sliding plate 309 then magnetically attracts the brush bristles 403 below, allowing the opening and closing flip plate 301 to reciprocate. This reciprocating lifting and lowering of the sliding plate 309 utilizes the brush bristles 403 to clean the ventilation slot 307. Simultaneously, the opening and closing flip plate 301... When automatically cleaning the ventilation slot 307, the centrifugal inertia formed by the opening and closing flip plate 301 will naturally throw out the residue in the ventilation slot 307 after it is brushed by the brush bristles 403. The centrifugal force makes it easier for the residue to detach and adhere, which also improves the cleaning effect. In addition, the air flow formed by the opening and closing flip plate 301 will carry the swept-off particles away from the arc welding machine 2, thereby reducing the problem of them being sucked back into the machine after the opening and closing flip plate 301 is closed.

[0054] During the self-resetting process of the telescopic plate 312, each section of the telescopic plate 312 will push off the dust adhering to the outer wall as it retracts, and the dust will fall into the area between the opening and closing flip plate 301 and the telescopic plate 312. The telescopic plate 312 will block the dust and prevent it from entering the arc welding machine 2. When the opening and closing flip plate 301 is opened later, the dust between the telescopic plate 312 and the opening and closing flip plate 301 can be cleaned. By utilizing the self-cleaning function of the telescopic plate 312 during retraction and the blocking effect of the telescopic plate 312 on the dust, the problem of dust drifting into the arc welding machine 2 after the telescopic plate 312 resets is effectively avoided.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An arc welding machine for new energy vehicle parts, comprising an arc welding machine (2), wherein a lifting handle (1) is fixedly connected to the top of the arc welding machine (2), a connection port (5) is provided on one side of the arc welding machine (2), a plug (6) is fixedly connected to the outer wall of the arc welding machine (2), and a fan (7) is provided inside the arc welding machine (2), characterized in that: The arc welding machine (2) is provided with an opening and closing mechanism (3) on the left side; The opening and closing mechanism (3) includes: The opening and closing flip plate (301) is a square plate structure. A shield (302) is fixedly connected to one side of the opening and closing flip plate (301). A ventilation groove (307) is provided inside the opening and closing flip plate (301). The ventilation groove (307) is connected to the inside of the shield (302). The opening and closing flip plate (301) is used to isolate the inside of the arc welding machine (2) from the outside. A connecting rod (304) is L-shaped. One end of the connecting rod (304) is fixedly connected to one side of the opening and closing flip plate (301). A rotating shaft (305) is fixedly connected to the inner wall of the connecting rod (304). A hinge block (303) is rotatably connected to the outer wall of the rotating shaft (305). One end of the hinge block (303) is fixedly connected to one side of the arc welding machine (2). The rotating shaft (305) is used to connect the connecting rod (304) and the hinge block (303) and to allow them to rotate relative to each other. The connecting rod (304) is used to connect the opening and closing flip plate (301) and the rotating shaft (305). A sliding strip (308) is fixedly connected to the outer wall of the opening and closing flip plate (301), and a sliding plate (309) is slidably connected to the outer wall of the sliding strip (308). The sliding plate (309) is slidably connected to the opening and closing flip plate (301) through the sliding strip (308). A rubber pull rope (310) is fixedly connected to the outer wall of the sliding plate (309), and a fixing block (311) is fixedly connected to the other end of the rubber pull rope (310). The rubber pull rope (310) is elastic. The bottom of the fixed block (311) is fixedly connected to a telescopic plate (312). The two sides of the telescopic plate (312) are slidably connected to the two sides of the inner wall of the arc welding machine (2). The bottom of the telescopic plate (312) is fixedly connected to the bottom of the inner wall of the arc welding machine (2). The top of the inner wall of the arc welding machine (2) is fixedly connected to a baffle (313). The outer wall of the sliding plate (309) is fixedly connected to a connecting long plate (402). A brush bristle (403) is fixedly connected to one side of the connecting long plate (402). The brush bristle (403) has elasticity. The outer wall of the opening and closing flip plate (301) is provided with a limiting mechanism (4), and the limiting mechanism (4) includes a magnetic block (401). One side of the magnetic block (401) is fixedly connected to one side of the opening and closing flip plate (301), the outer wall of the magnetic block (401) is in contact with the outer wall of the sliding plate (309), and the magnetic block (401) and the sliding plate (309) are magnetic; The magnetic blocks (401) and the sliding plate (309) are attracted to each other on the side where they are close to each other.

2. The arc welding machine for new energy vehicle parts according to claim 1, characterized in that: The sliding bar (308) is used to allow the sliding plate (309) to slide on the outer wall of the opening and closing flip plate (301) and to prevent the sliding plate (309) from falling off the outer wall of the opening and closing flip plate (301).

3. The arc welding machine for new energy vehicle parts according to claim 2, characterized in that: The groove on the inner wall of the shield (302) is an arc-shaped, downward-sloping groove.

4. The arc welding machine for new energy vehicle parts according to claim 3, characterized in that: The length of the bristles (403) can extend into the inner wall of the shield (302). A limiting baffle (404) is fixedly connected to one side of the opening and closing flip plate (301). The limiting baffle (404) is used to limit the sliding of the sliding plate (309) to prevent the sliding plate (309) from slipping off the opening and closing flip plate (301).

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