Pipe plasma cutting device for automobile parts

Abstract

The invention relates to the field of plasma cutting noise elimination, and discloses an automobile part pipe plasma cutting device which comprises a table body and a pipe feeding mechanism arranged on the upper portion in the table body, a plasma cutting gun is arranged in the table body, a fixing shell is fixedly connected to the upper end of the table body, and the plasma cutting gun is arranged in the fixing shell; a plurality of air inlet assemblies are arranged in the fixing shell, an air inlet window is formed in one side of the inner wall of the fixing shell, a main pipe is arranged below the air inlet assemblies and the air inlet window, a filtering assembly is arranged on one side of the main pipe, and the air inlet assemblies are arranged on the table body and connected with the main pipe. The air pump guides noise in the sound absorption holes to be transmitted into the vertical pipe through the main pipe and the air inlet assembly, the noise is eliminated through the silencer, so that the noise transmitted to the external space is weakened, the influence on hearing of workers is reduced, the cutting space in the fixed shell is isolated from the external space through the rotating shell, the noise transmitted to the external space is weakened, and the cutting efficiency is improved. And the influence on the hearing of workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plasma cutting noise elimination, in particular to a pipe plasma cutting device for automobile parts. Background Art

[0002] Plasma cutting is a processing method that uses the heat of a high-temperature plasma arc to partially melt (and evaporate) the metal at the workpiece cut, and uses the momentum of high-speed plasma to remove the molten metal to form a cut. The principle of plasma cutting is different from that of oxygen cutting. It can instantly cut metal or non-metal parts that are partially melted and then blown away to form a narrow and neat cut to complete the cutting. Therefore, its cutting efficiency is more than 3 times higher than that of oxygen cutting, and the cutting thickness can reach 150 to 200 mm. It can cut stainless steel, high-speed steel, aluminum, copper, nickel, titanium, cast iron and other refractory metals that cannot be cut by ordinary oxygen. It can also be used to cut non-metallic materials such as granite, silicon carbide, refractory bricks, concrete, etc.

[0003] When a plasma cutting gun is used to cut pipes for automotive parts, metal vapor, smoke and other gases are released, which may contain harmful substances and produce significant noise, usually above 85 decibels, which may cause hearing loss or tinnitus to workers who cut pipes for a long time. In addition, noise interference may make it difficult for people to concentrate on their work, and continuous noise will make people feel tired, thus affecting construction safety, working conditions and productivity. Summary of the invention

[0004] The object of the present invention is to provide a plasma cutting device for pipes used for automobile parts to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a plasma cutting device for pipes for automobile parts, comprising a table body and a pipe feeding mechanism arranged above the inside of the table body for isolating the cutting environment from the external environment, a plasma cutting gun for cutting the pipe is arranged in the table body, a fixed shell is fixedly connected to the upper end of the table body, a control panel is fixedly arranged on one side of the fixed shell, the plasma cutting gun is arranged on one side of the inner wall of the fixed shell, multiple groups of air intake components are arranged inside the fixed shell, two air intake windows for gas to pass through are arranged on one side of the inner wall of the fixed shell, the two air intake windows are respectively arranged on both sides of the air intake component, a main pipe for air flow to pass through is arranged below the air intake component and the air intake window, a filter component is arranged on one side of the main pipe, the filter component is used to filter harmful gases generated by cutting the pipe in the air flow, and an inclined plate is fixedly connected inside the table body;

[0006] The air intake assembly includes an airflow control valve fixedly connected to the upper end of the fixed shell, the lower end of the airflow control valve is fixedly connected to a vertical pipe, the lower end of the vertical pipe is through-connected to the main pipe, a plurality of connecting oblique pipes are fixedly arranged on the outside of the vertical pipe, one end of the connecting oblique pipe faces obliquely upward, a silencer for silencing is fixedly arranged at the lower part of the vertical pipe, and a plurality of sound-absorbing holes for sound absorption are opened on the inner wall of one side of the fixed shell, and the sound-absorbing holes correspond to the connecting oblique pipes.

[0007] Preferably, the air intake window includes a filter screen fixedly connected inside the air intake window, and a connecting vertical pipe is fixedly arranged below the air intake window.

[0008] Preferably, the main pipe includes an end fixedly connected to an air pump, an exhaust pipe is fixedly provided on the air pump, and an air blowing guide groove connected to the exhaust pipe is opened inside the platform.

[0009] Preferably, the filter assembly comprises a sliding cavity opened on one side of the platform, a sliding shell is slidably connected in the sliding cavity, a filter element is arranged in the sliding shell, and through holes corresponding to the main pipe are opened on both sides of the sliding shell.

[0010] Preferably, a conveyor belt is arranged at the lower part of the platform, slag blocking blocks are arranged above both sides of the conveyor belt, a rotating baffle is rotatably connected to the lower part of one side of the platform, and the rotating baffle is arranged at the discharging end of the conveyor belt.

[0011] Preferably, a slag collection assembly is provided at the lower interior of the platform, and the slag collection assembly includes a collection frame slidably connected to the lower interior of the platform, a slope is provided on the side of the collection frame facing the conveyor belt, and a rotating baffle rod is rotatably connected to the lower portion of one end of the platform, and the rotating baffle rod is provided above the collection frame.

[0012] Preferably, the tube feeding mechanism comprises a rotating assembly arranged on a platform, a fixed assembly is arranged inside the rotating assembly, and a pushing assembly is arranged below the fixed assembly.

[0013] Preferably, the rotating assembly comprises a rotating shell arranged in the platform body, a sliding groove is opened below the rotating shell, a perforated sound-absorbing plate is fixedly arranged on the inner wall of the rotating shell, and sound-absorbing cotton is arranged between the perforated sound-absorbing plate and the rotating shell.

[0014] Preferably, the fixing assembly includes a U-shaped placing frame fixedly connected to one side of the perforated silencer plate, the upper end of the U-shaped placing frame is rotatably connected to two limit rotating plates, a connecting cross bar is fixedly connected between the two limit rotating plates, one end of the two limit rotating plates are respectively fixedly connected to locking blocks, the locking blocks are provided with locking holes, two connecting blocks are fixedly connected to one side of the U-shaped placing frame, the connecting blocks correspond to the positions of the locking blocks, a sliding vertical plate is slidably connected inside the connecting block, one side of the sliding vertical plate is fixedly connected to a spring, the other end of the spring is fixedly connected to one side of the inner wall of the connecting block, and a locking block is fixedly connected to the upper side of one side of the sliding vertical plate, and the locking block corresponds to the locking hole on the locking block.

[0015] Preferably, the pushing assembly includes two rotating disks rotatably connected to a rotating shell, a rotating belt is movably arranged between the two rotating disks, a large gear is fixedly connected to the lower end of a rotating disk close to the plasma cutting gun, the large gear rotates inside the rotating shell, a small gear is meshedly connected to one side of the large gear, a driving motor is arranged above the small gear, a fixed vertical rod is fixedly connected to one side of the rotating belt, the fixed vertical rod slides in a sliding groove on the U-shaped placing frame, and a push plate is fixedly connected to the upper end of the fixed vertical rod.

[0016] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0017] (1) An air intake assembly is provided on the platform, and a main pipe is connected to the air intake assembly. The air pump guides the noise in the sound absorption hole to enter the vertical pipe through the main pipe and the air intake assembly. The noise is eliminated by the muffler. The cutting noise in the fixed shell is partially absorbed by the punched muffler plate and transmitted to the sound-absorbing cotton. The sound-absorbing cotton reduces the noise, so that when the plasma cutting gun cuts the pipe, most of the noise generated is absorbed and isolated. When the air pump extracts gas, the harmful gas generated during cutting in the fixed shell is extracted by the air pump through the main pipe and the vertical pipe connected to the air intake window. Before entering the air pump, the harmful gas is filtered by the filter element, and the purified airflow discharged by the air pump is used to clean the cut pipe, and the slag generated by cutting on the pipe is blown to the slag collection assembly, so that the slag is collected;

[0018] (2) The rotating shell is rotatably connected to the fixed shell. During the process of cutting the pipe, the rotating shell blocks one side of the fixed shell, so that the cutting space in the fixed shell is isolated from the external space. When cutting, the harmful gas generated cannot be directly discharged into the external space, reducing the harm to the workers' bodies. The internal environment is isolated from the external environment, so that the noise transmitted to the external space is weakened, reducing the impact on the workers' hearing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a structural schematic diagram of the pipe feeding mechanism of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the split structure of the fixing component and the pushing component of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the pusher assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the platform of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the air intake assembly of the present invention;

[0027] Fig. 9 It is a schematic diagram of the overall planar structure of the present invention;

[0028] Fig.10 This is a schematic diagram of the structure of the filter assembly of the present invention;

[0029] Fig.11 It is a schematic diagram of the conveyor belt structure of the present invention;

[0030] Fig.12 It is a schematic diagram of the structure of the slag collecting assembly of the present invention.

[0031] In the figure: 1, platform; 11, fixed shell; 12, control panel; 13, air intake assembly; 131, air flow control valve; 132, vertical pipe; 133, connecting inclined pipe; 134, silencer; 135, sound absorbing hole; 14, air intake window; 141, filter screen; 142, connecting vertical pipe; 15, main pipe; 151, air pump; 152, exhaust pipe; 153, blowing guide groove; 16, filter assembly; 161, sliding cavity; 162, sliding shell; 163, filter element; 17, inclined plate; 18, conveyor belt; 181, slag block; 182, rotating baffle; 19, slag collecting assembly; 191, Collecting frame; 192, ramp; 193, rotating baffle; 2, pipe feeding mechanism; 21, rotating assembly; 211, rotating shell; 212, punching silencer; 213, sound-absorbing cotton; 22, fixing assembly; 221, U-shaped placement frame; 222, limit rotating plate; 223, connecting cross bar; 224, locking block; 225, connecting block; 226, sliding vertical plate; 227, spring; 228, locking block; 23, pushing assembly; 231, rotating disk; 232, rotating belt; 233, large gear; 234, small gear; 235, fixed vertical rod; 236, pushing plate; 3, plasma cutting gun. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figures 1 to 12As shown, a pipe plasma cutting device for automobile parts provided by the present invention comprises a platform 1 and a pipe feeding mechanism 2 arranged above the inside of the platform 1 for isolating the cutting environment from the external environment, a plasma cutting gun 3 for cutting the pipe is arranged in the platform 1, a fixed shell 11 is fixedly connected to the upper end of the platform 1, a control panel 12 is fixedly arranged on one side of the fixed shell 11, the plasma cutting gun 3 is arranged on one side of the inner wall of the fixed shell 11, a plurality of groups of air intake components 13 are arranged inside the fixed shell 11, two air intake windows 14 for gas to pass through are arranged on one side of the inner wall of the fixed shell 11, the two air intake windows 14 are respectively arranged on both sides of the air intake component 13, a main pipe 15 for air flow to pass through is arranged below the air intake component 13 and the air intake window 14, a filter component 16 is arranged on one side of the main pipe 15, the filter component 16 is used to filter harmful gases generated by cutting the pipe in the air flow, and an inclined plate 17 is fixedly connected inside the platform 1;

[0035] The air intake assembly 13 includes an airflow control valve 131 fixedly connected to the upper end of the fixed shell 11, a vertical pipe 132 is fixedly connected to the lower end of the airflow control valve 131, the lower end of the vertical pipe 132 is through-connected to the main pipe 15, a plurality of connecting oblique pipes 133 are fixedly arranged on the outer side of the vertical pipe 132, one end of the connecting oblique pipe 133 faces obliquely upward, a silencer 134 for silencing is fixedly arranged at the lower part of the vertical pipe 132, and a plurality of sound absorbing holes 135 for sound absorption are opened on the inner wall of one side of the fixed shell 11, and the sound absorbing holes 135 correspond to the connecting oblique pipes 133.

[0036] The air intake window 14 includes a filter screen 141 fixedly connected inside the air intake window 14 , a connecting vertical pipe 142 is fixedly arranged below the air intake window 14 , an air flow control valve 131 is also arranged below the connecting vertical pipe 142 , and the lower end of the connecting vertical pipe 142 is connected to the main pipe 15 .

[0037] The main pipe 15 includes an air pump 151 fixedly connected at one end, an exhaust pipe 152 is fixedly arranged on the air pump 151, and an air blowing guide groove 153 connected to the exhaust pipe 152 is opened inside the platform 1, and the lower end of the air blowing guide groove 153 faces the inclined plate 17.

[0038] The filter assembly 16 includes a sliding cavity 161 opened on one side of the platform 1, the sliding cavity 161 is connected with the main pipe 15, a sliding shell 162 is slidably connected in the sliding cavity 161, a locking tongue is provided on the sliding shell 162, the locking tongue locks the sliding shell 162 in the sliding cavity 161, a rotating handle for controlling the extension and retraction of the locking tongue is provided on one side of the sliding shell 162, a filter element 163 for filtering harmful gases is provided in the sliding shell 162, and through holes corresponding to the main pipe 15 are provided on both sides of the sliding shell 162.

[0039] A conveyor belt 18 is provided at the lower part of the table body 1 for conveying the cut pipe out of the table body 1. Slag blocking blocks 181 are provided above both sides of the conveyor belt 18 for preventing slag and other debris from falling into the lower part of the table body 1. A rotating baffle 182 is rotatably connected to the lower part of one side of the table body 1, and the rotating baffle 182 is provided at the discharge end of the conveyor belt 18.

[0040] A slag collecting assembly 19 is arranged at the lower part of the table body 1. The slag collecting assembly 19 is used to store the slag generated by cutting the pipe. The slag collecting assembly 19 includes a collecting frame 191 slidably connected to the lower part of the table body 1. A slope 192 is arranged on the side of the collecting frame 191 facing the conveyor belt 18. A rotating baffle rod 193 is rotatably connected to the lower part of one end of the table body 1. The rotating baffle rod 193 is arranged above the collecting frame 191 to prevent the collecting frame 191 from sliding out of the table body 1, so that the slag falls into the inside of the table body 1.

[0041] The pipe feeding mechanism 2 includes a rotating assembly 21 arranged on the platform 1 for absorbing noise generated during the cutting process. A fixing assembly 22 for fixing the pipe is arranged inside the rotating assembly 21, and a pushing assembly 23 for pushing the pipe to move is arranged below the fixing assembly 22.

[0042] The rotating assembly 21 includes a rotating shell 211 arranged in the table body 1, and a pointed conical stopper is arranged on one side of the rotating shell 211 for preventing the rotating shell 211 from rotating on its own. The pointed conical stopper is slidably arranged in the table body 1, and an elastic element is arranged below the pointed conical stopper. A sliding groove is opened below the rotating shell 211, and a punched silencer plate 212 for absorbing cutting noise is fixedly arranged on the inner wall of the rotating shell 211, and sound-absorbing cotton 213 is arranged between the punched silencer plate 212 and the rotating shell 211.

[0043] The fixing component 22 includes a U-shaped placing frame 221 fixedly connected to one side of the punching silencer plate 212, and the upper end of the U-shaped placing frame 221 is rotatably connected to two limit rotating plates 222, and a connecting cross bar 223 is fixedly connected between the two limit rotating plates 222, and one end of the two limit rotating plates 222 is respectively fixedly connected to a locking block 224, and a locking hole is opened on the locking block 224, and one side of the U-shaped placing frame 221 is fixedly connected to two connecting blocks 225, and the connecting blocks 225 correspond to the positions of the locking blocks 224, and the connecting block 225 is slidably connected to a sliding vertical plate 226 inside the connecting block 225, and a spring 227 is fixedly connected to one side of the sliding vertical plate 226, and the other end of the spring 227 is fixedly connected to one side of the inner wall of the connecting block 225, and a locking block 228 is fixedly connected to the upper side of one side of the sliding vertical plate 226, and the locking block 228 corresponds to the locking hole on the locking block 224.

[0044] The pushing assembly 23 includes two rotating disks 231 rotatably connected to the rotating shell 211, a rotating belt 232 is movably arranged between the two rotating disks 231, a rotating disk 231 close to the plasma cutting gun 3 is fixedly connected to a large gear 233 at the lower end, the large gear 233 rotates inside the rotating shell 211, a small gear 234 is meshed and connected to one side of the large gear 233, a driving motor is arranged above the small gear 234, a fixed vertical rod 235 is fixedly connected to one side of the rotating belt 232, the fixed vertical rod 235 slides in a sliding groove on the U-shaped placing frame 221, and a push plate 236 for pushing the pipe to move toward the plasma cutting gun 3 is fixedly connected to the upper end of the fixed vertical rod 235.

[0045] To sum up, when it is necessary to cut the pipe for automobile parts, pull the handle on one side of the rotating shell 211 to rotate the rotating shell 211 to squeeze the pointed cone-shaped stopper into the table body 1, and finally the rotating shell 211 is perpendicular to the fixed shell 11, and the sliding vertical plate 226 is pushed to squeeze the sliding vertical plate 226 to squeeze the spring 227. At this time, the locking block 228 no longer restricts the locking block 224, and the connecting cross bar 223 is held and pulled upward to drive the limit rotating plate 222 to rotate, and the pipe is placed in the U-shaped placement frame 221, and the limit rotating plate 222 is reset to apply a certain pressure to the pipe to prevent the pipe from sliding in the U-shaped placement frame 221 by itself. After the limit rotating plate 222 is reset, the locking block 228 blocks the locking block 224 to prevent the limit rotating plate 222 from sliding by itself. The rotating shell 211 is turned over, and the rotating shell 211 is closed, so that the rotating shell 211 enters the fixed shell 11. The plasma cutting gun 3 is controlled by the control panel 12 to start cutting. At the same time, the air pump 151 works, so that the gas enters the vertical pipe 132 from the air flow control valve 131. The noise generated during cutting is absorbed by the sound-absorbing hole 135 and the punched sound-absorbing plate 212. The sound-absorbing cotton 213 isolates part of the sound from being transmitted. Because the sound-absorbing hole 135 is connected with the connecting inclined pipe 133, the air flow guides the sound in the sound-absorbing hole 135 to enter the vertical pipe 132. After being silenced by the muffler 134, the noise is weakened. The air pump 151 extracts the air in the exhaust pipe 152 and the air inlet window 14 through the main pipe 15, and the air in the fixed shell 11 is extracted into the main pipe 15 through the air inlet window 14. The harmful substances in the fixed shell 11 are removed. The gas then enters the main pipe 15, and no harmful gas is purified by the filter element 163 when passing through the filter assembly 16. The air pump 151 discharges the purified gas into the exhaust pipe 152 and injects it into the blowing guide groove 153. The airflow is guided by the blowing guide groove 153 and blows in the direction of the inclined plate 17, blowing the debris on the pipe that falls on the inclined plate 17 after cutting and then falls from the inclined plate 17 to the conveyor belt 18 to the collecting frame 191. The impurities are collected by the collecting frame 191, and the conveyor belt 18 drives the pipe to move in the direction of the rotating baffle 182, so that the pipe pushes the rotating baffle 182 and falls from the conveyor belt 18 to the outside of the table 1. The rotating baffle 193 is rotated so that the rotating baffle 193 no longer blocks the collecting frame 191, and the collecting frame 191 can be pulled out of the table 1. The impurities in the collecting frame 191 are cleaned. During cutting, the plasma cutting gun 3 cuts the pipes beyond the U-shaped placing frame 221. After the cutting is completed, the pipes fall on the inclined plate 17. After one cutting, the driving motor drives the small gear 234 to engage the large gear 233 to rotate, the large gear 233 drives the rotating disk 231 to rotate, the rotating disk 231 drives the rotating belt 232 to rotate, and the rotating belt 232 drives the push plate 236 to push the pipes in the U-shaped placing frame 221 out of the U-shaped placing frame 221 through the fixed vertical rod 235. The plasma cutting gun 3 continues to cut the pipes. The distance that the push plate 236 pushes the pipes each time is set through the control panel 12, so that the cutting environment is isolated from the outside, reducing the damage caused by noise and gas to the staff.The noise level is further reduced by the arrangement of the punched silencer plate 212, the sound-absorbing cotton 213 and the air intake assembly 13. The harmful gas in the fixed shell 11 is extracted and filtered through the cooperation of the air intake window 14, the air pump 151 and the filter assembly 16. The air blown by the air pump 151 is used to clean the slag of the pipe after cutting.

[0046] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A plasma cutting device for pipes for automobile parts, comprising a platform (1) and a pipe feeding mechanism (2) arranged above the platform (1) for isolating the cutting environment from the external environment, wherein a plasma cutting gun (3) for cutting the pipe is arranged in the platform (1), characterized in that: The upper end of the platform (1) is fixedly connected to a fixed shell (11), a control panel (12) is fixedly arranged on one side of the fixed shell (11), the plasma cutting gun (3) is arranged on one side of the inner wall of the fixed shell (11), a plurality of groups of air intake components (13) are arranged inside the fixed shell (11), two air intake windows (14) for allowing gas to pass are arranged on one side of the inner wall of the fixed shell (11), the two air intake windows (14) are respectively arranged on both sides of the air intake component (13), a main pipe (15) for allowing air to pass is arranged below the air intake component (13) and the air intake window (14), a filter component (16) is arranged on one side of the main pipe (15), the filter component (16) is used to filter harmful gases generated by cutting pipes in the air flow, and an inclined plate (17) is fixedly connected inside the platform (1); The air intake assembly (13) comprises an airflow control valve (131) fixedly connected to the upper end of the fixed shell (11); the lower end of the airflow control valve (131) is fixedly connected to a vertical pipe (132); the lower end of the vertical pipe (132) is connected to the main pipe (15); a plurality of connecting oblique pipes (133) are fixedly arranged on the outer side of the vertical pipe (132); one end of the connecting oblique pipe (133) faces obliquely upward; a silencer (134) for silencing is fixedly arranged at the lower part of the vertical pipe (132); and a plurality of sound absorbing holes (135) for absorbing sound are opened on the inner wall of one side of the fixed shell (11); and the sound absorbing holes (135) correspond to the connecting oblique pipes (133).

2. The plasma cutting device for automobile parts pipes according to claim 1, characterized in that: The air intake window (14) comprises a filter screen (141) fixedly connected inside the air intake window (14), and a connecting vertical pipe (142) is fixedly arranged below the air intake window (14).

3. The plasma cutting device for automobile parts pipes according to claim 1, characterized in that: The main pipe (15) comprises an air pump (151) fixedly connected to one end, an exhaust pipe (152) is fixedly arranged on the air pump (151), and an air blowing guide groove (153) which is connected to the exhaust pipe (152) is provided inside the platform (1).

4. The plasma cutting device for automobile parts pipes according to claim 3, characterized in that: The filter assembly (16) comprises a sliding cavity (161) opened on one side of the platform (1), a sliding shell (162) is slidably connected in the sliding cavity (161), a filter element (163) is arranged in the sliding shell (162), and through holes corresponding to the main pipe (15) are opened on both sides of the sliding shell (162).

5. The plasma cutting device for automobile parts pipes according to claim 1, characterized in that: A conveyor belt (18) is arranged at the lower part of the platform (1), slag blocking blocks (181) are arranged above both sides of the conveyor belt (18), and a rotating baffle (182) is rotatably connected to the lower part of one side of the platform (1), and the rotating baffle (182) is arranged at the discharge end of the conveyor belt (18).

6. The plasma cutting device for automobile parts pipes according to claim 5, characterized in that: A slag collecting assembly (19) is arranged at the lower part of the platform (1), and the slag collecting assembly (19) comprises a collecting frame (191) slidably connected to the lower part of the platform (1), and a slope (192) is arranged on the side of the collecting frame (191) facing the conveyor belt (18), and a rotating baffle rod (193) is rotatably connected to the lower part of one end of the platform (1), and the rotating baffle rod (193) is arranged above the collecting frame (191).

7. The plasma cutting device for automobile parts pipes according to claim 1, characterized in that: The pipe feeding mechanism (2) comprises a rotating assembly (21) arranged on a platform (1), a fixing assembly (22) is arranged inside the rotating assembly (21), and a pushing assembly (23) is arranged below the fixing assembly (22).

8. The plasma cutting device for automobile parts pipes according to claim 7, characterized in that: The rotating assembly (21) comprises a rotating shell (211) arranged in the platform (1), a sliding groove is provided below the rotating shell (211), a punched sound-absorbing plate (212) is fixedly provided on the inner wall of the rotating shell (211), and sound-absorbing cotton (213) is provided between the punched sound-absorbing plate (212) and the rotating shell (211).

9. The plasma cutting device for automobile parts pipes according to claim 8, characterized in that: The fixing assembly (22) comprises a U-shaped placement frame (221) fixedly connected to one side of the punching sound-absorbing plate (212); the upper end of the U-shaped placement frame (221) is rotatably connected to two limit rotation plates (222); a connecting cross bar (223) is fixedly connected between the two limit rotation plates (222); one end of the two limit rotation plates (222) is respectively fixedly connected to a locking block (224); a locking hole is provided on the locking block (224); and one side of the U-shaped placement frame (221) is fixedly connected to two A connecting block (225), wherein the connecting block (225) corresponds to the position of the locking block (224), wherein the connecting block (225) is slidably connected to a sliding vertical plate (226) inside, wherein one side of the sliding vertical plate (226) is fixedly connected to a spring (227), wherein the other end of the spring (227) is fixedly connected to one side of the inner wall of the connecting block (225), wherein a locking block (228) is fixedly connected to the upper side of one side of the sliding vertical plate (226), and wherein the locking block (228) corresponds to a locking hole on the locking block (224).

10. The plasma cutting device for automobile parts pipes according to claim 9, characterized in that: The pusher assembly (23) comprises two rotating disks (231) rotatably connected to a rotating shell (211), a rotating belt (232) being movably arranged between the two rotating disks (231), a large gear (233) being fixedly connected to the lower end of a rotating disk (231) close to the plasma cutting gun (3), the large gear (233) rotating inside the rotating shell (211), a small gear (234) being meshedly connected to one side of the large gear (233), a driving motor being arranged above the small gear (234), a fixed vertical rod (235) being fixedly connected to one side of the rotating belt (232), the fixed vertical rod (235) sliding in a sliding groove on a U-shaped placing frame (221), and a push plate (236) being fixedly connected to the upper end of the fixed vertical rod (235).

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