Ship ventilation pipe welding device

Abstract

The invention provides a ship ventilation pipe welding device which relates to the technical field of welding and comprises welding manipulators, a first fixing part, a second fixing part and a connecting plate, the first fixing part and the second fixing part are identical in structure and connected to the connecting plate, and the welding manipulators are distributed on one side of the connecting plate. The second fixing part comprises a mounting seat, an abutting part and rotating rollers, the mounting seat is fixed to the connecting plate, a clamping seat is clamped to the inner wall of the mounting seat, the rotating rollers are distributed on the clamping seat at equal intervals, fixing lugs are rotationally arranged at the two ends of each rotating roller, the fixing lugs are fixed to the clamping seat, and the abutting part is detachably arranged on the mounting seat. Air pipe bodies are inserted into the first fixing piece and the second fixing piece. The output shaft of the transmission motor drives the pushing wheel through the driving rod, and provides pushing force for the two air pipe bodies at the same time, so that the welding parts of the two air pipe bodies are adjusted, and the welding quality of the air pipe bodies is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a ship ventilation pipe welding device. BACKGROUND

[0002] In the process of welding the ship ventilation pipe, a ventilation pipe welding device needs to be used. The ventilation pipe welding device on the market mainly consists of a welding structure and a fixing structure. In actual use, the fixing structure includes a clamping plate and a support. A rotating structure is arranged at the abutting part of the clamping plate and the ventilation pipe. The ventilation pipe can rotate on the clamping plate by means of the rotating structure, so as to facilitate the alignment of the welding ends of two ventilation pipes and facilitate the welding of two disconnected ventilation pipes. However, the above-mentioned ventilation pipe welding device can indeed achieve good welding effect on two disconnected ventilation pipes. However, it still has some shortcomings in actual use, such as: The existing ventilation pipe welding device does not have a good ventilation pipe transmission structure. When the welding part of the ventilation pipe is welded, the other parts of the ventilation pipe need to be welded. At this time, the welding part of the ventilation pipe needs to be moved. The transmission structure applied to the welding part of the ventilation pipe on the market mainly consists of a transmission part abutting against the ventilation pipe. The transmission part abuts against the part of the ventilation pipe away from the welding end. When the welding part of the ventilation pipe needs to be rotated, the transmission part drives one of the ventilation pipes to rotate, so as to adjust the welding parts of the two disconnected ventilation pipes. Although the transmission structure of the above-mentioned ventilation pipe welding device can adjust the welding parts of the two disconnected ventilation pipes, the transmission structure drives the other ventilation pipe to rotate through one ventilation pipe, which causes uneven force on the welding parts of the two ventilation pipes. This can easily cause damage to the welding seams of the two ventilation pipes, thereby affecting the quality of the welding seams of the two ventilation pipes. SUMMARY

[0003] In view of the shortcomings of the prior art, the purpose of the embodiments of the present application is to provide a ship ventilation pipe welding device which can solve the technical problem that the transmission structure drives the other ventilation pipe to rotate through one ventilation pipe, causing uneven force on the welding parts of the two ventilation pipes and causing damage to the welding seams of the two ventilation pipes.

[0004] The technical scheme provided by the embodiments of the present application is as follows: The ship ventilation pipe welding device provided by the embodiments of the present application comprises a welding manipulator, a first fixing member, a second fixing member and a connecting plate. The first fixing member and the second fixing member have the same structure. The first fixing member and the second fixing member are connected to the connecting plate. The welding manipulator is distributed on one side of the connecting plate. The second fixing member comprises a mounting seat, a pressing member and a rotating roller. The mounting seat is fixed on the connecting plate, the inner wall of the mounting seat is clamped with a clamping seat, the clamping seat is distributed with rotating rollers at equal intervals, the two ends of the rotating roller are rotatably provided with fixed lugs, the fixed lugs and the clamping seat are fixed, and the pressing piece is detachably arranged on the mounting seat. The first fixing member and the second fixing member are both inserted with the air pipe body, the air pipe body on the first fixing member and the air pipe body on the second fixing member abut. The connecting plate is connected with a transmission structure, the transmission structure comprises a transmission motor, a pushing wheel and a pushing part. The fixed end of the transmission motor and the connecting plate are fixed, the driving rod is fixed on the pushing wheel, the driving rod and the driving end of the transmission motor are fixed, the pushing part is relatively fixed on the pushing wheel, and the pushing part abuts on the air pipe body.

[0005] The pressing piece comprises a turnover piece, a screw piece and an abutting block. The turnover piece is detachably arranged on the mounting seat, the screw piece is threadedly connected with a screw sleeve, the screw sleeve and the turnover piece are fixed, the lower end of the screw piece is rotatably provided with an abutting block, the bottom surface of the abutting block is fixed with a bull's eye wheel, and the upper end of the screw piece is fixed with a rotating head.

[0006] The mounting seat on the first fixing member is connected with an electric sliding rail, the fixed end of the electric sliding rail and the connecting plate are fixed, and the end of the mounting seat on the first fixing member away from the electric sliding rail and the connecting plate are slidingly connected.

[0007] The pushing part is penetrated by extrusion blocks at equal intervals, the extrusion block is a block structure with one side inclined, the upper part of the extrusion block abuts on the air pipe body, and the abutting surface of the extrusion block and the air pipe body is rough.

[0008] The lower part of the extrusion block is relatively abutted with a second supporting block, one of the second supporting blocks is fixed with the pushing wheel, the other second supporting block is fixed with an abutting part, and the abutting part is fixedly connected with the pushing part.

[0009] The pushing part, the abutting part and the pushing wheel form a hollow cavity structure, the pushing part and the abutting part are elastic, and the abutting surface of the abutting part away from the first supporting block is rough.

[0010] The first fixing member and the second fixing member are distributed with dust exhaust pipes away from the welding mechanical arm on one side, the part close to the air pipe body of the dust exhaust pipe is provided with an opening, the inner wall of the opening is rotatably provided with a rotating rod, and the rotating rod is fixed with brush hairs at equal intervals.

[0011] The end of the rotating rod penetrating the dust exhaust pipe is fixed with a first gear, the first gear is sleeved with a toothed belt, the toothed belt is connected with a second gear, and the second gear is fixed on the driving rod.

[0012] The mounting seat on the first fixing member is fixed with a plug rod, a rod barrel is sleeved on the plug rod, and the rod barrel and the mounting seat on the second fixing member are fixed.

[0013] The two sides of the connecting plate are fixed with support frames, the support frames abut against the air pipe bodies, and the abutting parts of the support frames and the air pipe bodies are provided with rotating wheels.

[0014] The technical scheme provided by the embodiment of the present application has at least the following beneficial effects: In the present application, when the two air pipe bodies abut against each other, the pushing wheel can abut against the part where the two air pipe bodies abut against each other, the pushing wheel is a columnar structure with a recessed middle part, the recessed part of the pushing wheel does not contact the welding surface of the air pipe body, so that when the two air pipe bodies are welded, the output shaft of the transmission motor drives the pushing wheel through the driving rod, and at the same time, the pushing wheel provides a pushing force to the two air pipe bodies, so that the welding parts of the two air pipe bodies are adjusted, and the quality of the welding of the air pipe body is ensured.

[0015] In the present application, when the pushing wheel drives the air pipe body to rotate on the first fixing member and the second fixing member, the second gear drives the first gear to rotate through the toothed belt, and at the same time, the first gear drives the bristles to clean the welding slag on the welding seam of the air pipe body through the rotating rod.

[0016] In the present application, the discharge end of the dust removal pipe is connected with the external dust suction structure, when the external dust suction structure works, the receiving end of the external dust suction structure can extract the air inside the dust removal pipe, at this time, the inside of the dust removal pipe is in a negative pressure state, so that when the external air enters the inside of the dust removal pipe through the gap, the external air blows the welding slag on the bristles to the receiving end of the external dust suction structure, and the external dust suction structure can concentrate the cleaning of the separated welding slag of the bristles. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are only for the purpose of illustrating specific embodiments and are not considered to be limiting of the present application, and in the whole drawings, the same reference signs represent the same parts. Obviously, the drawings described below are only some embodiments described in the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0018] Figure 1 A structural schematic diagram of a ship ventilation pipe welding device provided by the embodiment of the present application.

[0019] Figure 2 A distribution schematic diagram of the first fixing member and the second fixing member provided by the embodiment of the present application.

[0020] Figure 3A distribution diagram of the dust removal pipe and the pushing wheel provided by the embodiment of the present application.

[0021] Figure 4 A structure diagram of the second fixing member provided by the embodiment of the present application.

[0022] Figure 5 A connection structure diagram of the pushing part and the pushing wheel provided by the embodiment of the present application.

[0023] Figure 6 A connection structure diagram of the extrusion block and the pushing part provided by the embodiment of the present application.

[0024] Figure 7 A Figure 6 An enlarged diagram of A.

[0025] Figure 8 A connection structure diagram of the fixing lug and the clamping seat provided by the embodiment of the present application.

[0026] The figure mark explanation: 1-welding mechanical hand; 2-overturning member; 21-clamping seat; 22-roller; 23-fixing lug; 24-mounting seat; 25-rotating head; 26-screw sleeve; 27-screw member; 28-bull's eye wheel; 29-abutment block; 3-first fixing member; 4-dust removal pipe; 41-bristle; 42-aperture; 43-rotating rod; 44-first gear; 45-toothed belt; 5-pipe body; 6-transmission motor; 61-pushing wheel; 62-second gear; 63-driving rod; 64-pushing part; 65-extrusion block; 66-first supporting block; 67-second supporting block; 68-abutment part; 7-connection plate; 71-inserting rod; 72-rod cylinder; 73-electric sliding rail; 8-second fixing member; 9-supporting frame.

[0027] As shown in the figure, in order to clearly realize the structure of the embodiment of the present application, specific structures and devices are marked in the figure, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment, and the devices and environment can be adjusted or modified by the ordinary skilled in the art according to the specific need. DETAILED DESCRIPTION

[0028] In order to make the person in the art better understand the technical scheme in the embodiment of the present application, the technical scheme of the present application will be described clearly and completely below in combination with the figures, obviously, the described embodiment is a part of the embodiment of the present application, rather than all the embodiments. It should be understood that these descriptions are only exemplary, and are not used to limit the scope of the present application. Based on the embodiment of the present application, all other embodiments obtained by the ordinary skilled in the art without making creative labor should belong to the scope of protection of the present application.

[0029] Furthermore, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present disclosure.

[0030] Exemplary embodiments will be described in detail with reference to the drawings, of which examples are shown. In the following description, like reference numerals refer to like elements unless the context clearly dictates otherwise. The implementations described in the following exemplary embodiments are not meant to represent all implementations consistent with the present disclosure.

[0031] Reference is made to the accompanying drawings that form a part of this Figures 1 to 8 The embodiment of the present application provides a ship ventilation pipe welding device, which comprises a welding manipulator 1, a first fixing part 3, a second fixing part 8 and a connecting plate 7, the first fixing part 3 and the second fixing part 8 are the same in structure, the first fixing part 3 and the second fixing part 8 are connected on the connecting plate 7, and the welding manipulator 1 is distributed on one side of the connecting plate 7.

[0032] The second fixing part 8 comprises a mounting seat 24, a pressing part and a rotating roller 22.

[0033] The mounting seat 24 is fixed on the connecting plate 7, a clamping seat 21 is clamped on the inner wall of the mounting seat 24, the rotating rollers 22 are distributed at equal intervals on the clamping seat 21, the two ends of the rotating roller 22 are rotatably provided with fixing lugs 23, the fixing lugs 23 are fixed on the clamping seat 21, and the pressing part is detachably arranged on the mounting seat 24.

[0034] The pipe body 5 is inserted on the first fixing part 3 and the second fixing part 8, and the pipe body 5 on the first fixing part 3 abuts against the pipe body 5 on the second fixing part 8.

[0035] The connecting plate 7 is connected with a transmission structure, and the transmission structure comprises a transmission motor 6, a pushing wheel 61 and a pushing part 64.

[0036] The fixed end of the transmission motor 6 is fixed on the connecting plate 7, the driving rod 63 is fixed on the pushing wheel 61, the driving rod 63 is fixed on the driving end of the transmission motor 6, the pushing part 64 is fixed on the pushing wheel 61, the pushing part 64 abuts against the pipe body 5, and the pressing part comprises a turnover part 2, a screw part 27 and an abutting block 29.

[0037] The turnover part 2 is detachably arranged on the mounting seat 24, the screw sleeve 26 is threadedly connected on the screw part 27, the screw sleeve 26 is fixed on the turnover part 2, the lower end of the screw part 27 is rotatably provided with the abutting block 29, the bottom surface of the abutting block 29 is fixed with a bull's eye wheel 28, and the upper end of the screw part 27 is fixed with a rotating head 25.

[0038] Specifically, in actual use, the air pipe body 5 on the first fixing member 3 and the air pipe body 5 on the second fixing member 8 abut, then the staff reversely rotates the rotating head 25, the rotating head 25 can drive the screw rod 27 to rotate, and then the abutting block 29 moves downward, when the abutting block 29 abuts on the air pipe body 5, the abutting block 29 can press the air pipe body 5 through the cow eye wheel 28, and then the air pipe body 5 is fixed on the rotating roller 22, which is convenient for the welding manipulator 1 to weld the contact parts of the two air pipe bodies 5.

[0039] When the air pipe body 5 is fixed on the rotating roller 22, since the rotating roller 22 rotates on the fixed lug 23, when the air pipe body 5 rotates around its axis, the rotating roller 22 rotates on the fixed lug 23, which reduces the friction between the air pipe body 5 and the rotating roller 22, and facilitates the relative position adjustment of the two air pipe bodies 5.

[0040] When the two air pipe bodies 5 abut on each other, the pushing wheel 61 can abut on the part where the two air pipe bodies 5 abut on each other, the pushing wheel 61 is a columnar structure with a recessed middle part, the recessed part of the pushing wheel 61 does not contact the welding surface of the air pipe body 5, which can realize that the output shaft of the transmission motor 6 drives the pushing wheel 61 to provide a pushing force to the two air pipe bodies 5 at the same time when the two air pipe bodies 5 are welded, and then the welding parts of the two air pipe bodies 5 are adjusted, and the welding quality of the air pipe body 5 is ensured.

[0041] In a possible implementation, the mounting seat 24 on the first fixing member 3 is connected with an electric sliding rail 73, the fixed end of the electric sliding rail 73 is fixed with the connecting plate 7, and the end of the mounting seat 24 on the first fixing member 3 away from the electric sliding rail 73 slides with the connecting plate 7.

[0042] Specifically, when the rotating roller 22 needs to support the air pipe body 5, the working end of the electric sliding rail 73 can drive the position adjustment of the mounting seat 24, and then the rotating roller 22 on the first fixing member 3 can support different positions on the air pipe body 5, and the stable abutment of the welding parts of the two air pipe bodies 5 is ensured.

[0043] In a possible implementation, the pushing part 64 is through-penetrated by extrusion blocks 65 at equal intervals, the extrusion blocks 65 are block-shaped structures with one side inclined, the upper part of the extrusion block 65 abuts on the air pipe body 5, and the side of the extrusion block 65 abutting on the air pipe body 5 is a rough surface.

[0044] Specifically, when the pushing part 64 drives the extrusion block 65 to abut against the outer wall of the air pipe body 5, the extrusion block 65 can be extruded by the air pipe body 5, at this time, the extrusion block 65 will extrude the first supporting block 66, and then the first supporting block 66 will extrude the abutting part 68, at this time, the abutting part 68 will extrude the weld seam of the two air pipe body 5 welding positions, and then the abutting part 68 will extrude the welding slag on the weld seam, and the extruded welding slag will collapse on the weld seam, facilitating the subsequent separation of the welding slag on the weld seam.

[0045] It should be noted that the end of the extrusion block 65 abutting against the air pipe body 5 is rough, and the design can realize that there is friction between the extrusion block 65 and the air pipe body 5, facilitating the pushing of the extrusion block 65 to the air pipe body 5.

[0046] Please refer to the drawings Figure 1 Since the transmission structure is distributed on the connecting plate 7 away from the welding manipulator 1, before the abutting part 68 extrudes the weld seam of the air pipe body 5, the air pipe body 5 is exposed to the air, which can realize that the weld seam of the air pipe body 5 can be cooled in the external environment. In order to realize that the weld seam on the air pipe body 5 can be quickly cooled and the welding slag on the weld seam can be brittle, the staff can set an external cooling structure on the connecting plate 7, which can quickly cool the weld seam on the air pipe body 5. When the weld seam is cooled, the welding slag on the weld seam will be brittle, and when the abutting part 68 extrudes the welding slag on the weld seam, the extruded welding slag will collapse on the weld seam, facilitating subsequent processing.

[0047] In one possible implementation, the lower part of the extrusion block 65 is relatively abutted with the second supporting block 67, one of the second supporting blocks 67 is fixed with the pushing wheel 61, and the other second supporting block 67 is fixed with the abutting part 68, and the abutting part 68 is fixedly connected with the pushing part 64.

[0048] Specifically, when the extrusion block 65 and the pushing part 64 abut on both sides of the two air pipe body 5 welding positions, the abutting part 68 extrudes the welding slag on the weld seam, and at this time, the weld seam between the abutting part 68 and the air pipe body 5 will have friction, which can realize that the abutting part 68 cooperates with the pushing part 64 to rotate the two air pipe body 5 welding positions, and then realize that the welding manipulator 1 welds different positions of the air pipe body 5.

[0049] In one possible implementation, the pushing part 64 and the abutting part 68, and the pushing wheel 61 form a hollow cavity structure, and the pushing part 64 and the abutting part 68 are elastic, which can realize that after the extrusion block 65 extrudes the first supporting block 66, the pushing part 64 and the abutting part 68 rely on the restoring force of themselves to drive the extrusion block 65 to reset, and the side of the abutting part 68 away from the first supporting block 66 is rough.

[0050] In a possible implementation, the side of the first fixing member 3 and the second fixing member 8 away from the welding robot 1 is provided with a dust removal pipe 4, the dust removal pipe 4 is provided with an opening 42 near the part of the air pipe body 5, the inner wall of the opening 42 is provided with a rotating rod 43, and the rotating rod 43 is fixed with brush hairs 41 at equal intervals.

[0051] The one end of the rotating rod 43 penetrating through the dust removal pipe 4 is fixed with a first gear 44, the first gear 44 is sleeved with a toothed belt 45, the toothed belt 45 is connected with a second gear 62, and the second gear 62 is fixed on a driving rod 63.

[0052] Specifically, when the air pipe body 5 is turned on the first fixing member 3 and the second fixing member 8 by the pushing wheel 61 through the pushing part 64, the second gear 62 will drive the first gear 44 to rotate through the toothed belt 45, and at the same time, the first gear 44 drives the brush hairs 41 to clean the welding slag on the welding seam of the air pipe body 5 through the rotating rod 43.

[0053] The discharge end of the dust removal pipe 4 is connected with an external dust collection structure, when the external dust collection structure works, the receiving end of the external dust collection structure will suck the air inside the dust removal pipe 4, at this time, the inside of the dust removal pipe 4 is in a negative pressure state, so that when the external air enters the inside of the dust removal pipe 4 through the opening 42, the external air blows the welding slag on the brush hairs 41 to the receiving end of the external dust collection structure for transportation, and the external dust collection structure can concentrate the cleaning of the welding slag separated from the brush hairs 41.

[0054] In a possible implementation, the mounting seat 24 on the first fixing member 3 is fixed with a plug rod 71, the plug rod 71 is sleeved with a rod barrel 72, and the rod barrel 72 is fixed with the mounting seat 24 on the second fixing member 8.

[0055] In a possible implementation, the two sides of the connecting plate 7 are fixed with support frames 9, the support frames 9 abut against the air pipe body 5, and the abutting part of the support frames 9 and the air pipe body 5 is provided with a rotating wheel, the support frames 9 can support the air pipe body 5 through the rotating wheel, and the air pipe body 5 can be stably fixed on the first fixing member 3 and the second fixing member 8.

[0056] Specifically, when the working end of the electric sliding rail 73 drives the position of the first fixing member 3 to move, the first fixing member 3 will drive the plug rod 71 to move inside the rod barrel 72, at this time, the use length of the plug rod 71 will change, and when the plug rod 71 is used with the rod barrel 72, the welding parts of the two air pipe bodies 5 can be protected, so that external objects can be prevented from contacting the welding parts of the air pipe bodies 5 due to accidental situations.

[0057] The present application encompasses any alternatives, modifications, equivalent methods and solutions made to the spirit and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the preferred embodiments of the present application, and the present application can be fully understood without the description of these details by those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. Any changes or replacements easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered within the protection scope of the present application.

Claims

1. A welding device for ship ventilation pipes, characterized in that, The utility model provides a welding manipulator, first fixed part, second fixed part and connecting plate, the structure of first fixed part and second fixed part is same, first fixed part and second fixed part are connected on connecting plate, and welding manipulator is distributed in one side of connecting plate. The second fixed part comprises a mounting seat, a pressing piece and a rotating roller. The mounting seat is fixed on the connecting plate, the inner wall of the mounting seat is provided with a clamping seat, the rotating roller is distributed on the clamping seat at equal intervals, both ends of the rotating roller are rotatably provided with a fixed lug, the fixed lug is fixed with the clamping seat, and the pressing piece is detachably arranged on the mounting seat. The first fixed part and the second fixed part are both provided with a wind pipe body, the wind pipe body on the first fixed part and the wind pipe body on the second fixed part abut. The connecting plate is connected with a transmission structure, the transmission structure comprises a transmission motor, a pushing wheel and a pushing part. The fixed end of the transmission motor is fixed with the connecting plate, the driving rod is fixed on the pushing wheel, the driving rod is fixed with the driving end of the transmission motor, the pushing part is relatively fixed on the pushing wheel, and the pushing part abuts on the wind pipe body. The pressing piece comprises a turnover piece, a screw piece and an abutting block.

2. A marine ventilation pipe welding apparatus according to claim 1, characterised in that, The turnover piece is detachably arranged on the mounting seat, the screw piece is threadedly connected with a screw sleeve, the screw sleeve is fixed with the turnover piece, the lower end of the screw piece is rotatably provided with the abutting block, the bottom surface of the abutting block is fixed with a cow eye wheel, and the upper end of the screw piece is fixed with a rotating head. The mounting seat on the first fixed part is connected with an electric sliding rail, the fixed end of the electric sliding rail is fixed with the connecting plate, and the end of the mounting seat on the first fixed part away from the electric sliding rail is slidably connected with the connecting plate.

3. A marine ventilation pipe welding apparatus according to claim 2, characterised in that, The pushing part is penetrated by an extrusion block at equal intervals, the extrusion block is a block structure with one side inclined, the upper part of the extrusion block abuts on the wind pipe body, and the abutting surface of the extrusion block and the wind pipe body is rough.

4. A marine ventilation pipe welding apparatus according to claim 1, wherein The lower part of the extrusion block is relatively provided with a second supporting block, one of the second supporting blocks is fixed with the pushing wheel, the other second supporting block is fixed with an abutting part, and the abutting part is fixedly connected with the pushing part.

5. A marine ventilation pipe welding apparatus according to claim 4, wherein The pushing part, the abutting part and the pushing wheel form a hollow cavity structure, the pushing part and the abutting part are elastic, and the abutting surface of the abutting part away from the first supporting block is rough.

6. A marine ventilation pipe welding apparatus according to claim 5, wherein The first fixed part and the second fixed part are provided with a dust removal pipe away from the welding manipulator, the dust removal pipe is provided with an opening near the wind pipe body, the inner wall of the opening is rotatably provided with a rotating rod, and the rotating rod is fixed with brush hairs at equal intervals.

7. A marine ventilation pipe welding apparatus according to claim 1, wherein One end of the rotating rod penetrating the dust removal pipe is fixed with a first gear, the first gear is sleeved with a toothed belt, the toothed belt is connected with a second gear, and the second gear is fixed on the driving rod.

8. A marine ventilation pipe welding apparatus according to claim 7, characterised in that, The mounting seat on the first fixed part is fixed with a plug rod, the plug rod is sleeved with a rod barrel, and the rod barrel is fixed with the mounting seat on the second fixed part.

9. A marine ventilation pipe welding apparatus according to claim 1, wherein Both sides of the connecting plate are fixed with supporting frames, the supporting frames abut on the wind pipe body, and the supporting frames and the wind pipe body are provided with rotating wheels at the abutting positions.

10. A marine ventilation pipe welding apparatus according to claim 1, wherein ​

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