Multi-angle auxiliary welding machine for fire-fighting smoke exhaust pipeline

Abstract

The invention discloses a multi-angle auxiliary welding machine for a fire-fighting smoke exhaust pipeline, relates to the technical field of welding machines, and aims to solve the problems that a connecting flange and the pipeline need to be obliquely welded according to a mounting angle, and when the flange is inclined, a large gap is formed between a flange plate and the pipeline welding position due to deviation between the center of the flange and the center of the pipeline; welding is influenced. According to the multi-angle auxiliary welding machine for the fire-fighting smoke exhaust pipeline, clamping ring blocks are in contact with and fixed to a flange plate, when the inclination angle of the flange plate is adjusted, the flange plate is always located in the clamping grooves through the width change of the clamping grooves from top to bottom, and when the flange plate is clamped and is matched with the inclined face of the inclined face plate, the flange plate is always located in the clamping grooves when not subjected to upward pulling force; and the problems that during multi-angle welding rotation, due to movement of the flange plate, a gap is formed in the welding position, the welding position deviates, meanwhile, the insufficient welding phenomenon is likely to occur when the gap is large, and the welding quality is affected are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding machines, in particular to a multi-angle auxiliary welding machine for fire smoke exhaust pipes. Background Art

[0002] At present, the fire smoke exhaust pipe is a very important part of the fire protection system. It is mainly used to discharge the smoke in the building to the outside in time when a fire occurs, creating good conditions for personnel evacuation and fire rescue. The fire smoke exhaust pipe multi-angle auxiliary welding machine is a professional welding equipment designed specifically for the welding needs of fire smoke exhaust pipes. At the installation site, it is often necessary to adapt to various complex angles and spatial positions for welding and connection. The welding machine can effectively assist welders to complete welding operations more accurately and efficiently, and ensure the sealing and stability of the fire smoke exhaust system, which is of great significance to fire safety. When welding the smoke exhaust duct, the connecting flange and the pipe need to be tilted and welded according to the installation angle. When the flange is tilted, the center of the flange and the center of the pipe are offset, resulting in a large gap between the flange and the pipe welding position, affecting the welding. Summary of the invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-angle auxiliary welding machine for fire smoke exhaust pipes, comprising: A frame, a motor is fixedly installed at the bottom of the frame, an output end of the motor passes through the frame and extends to the top of the frame, a mechanical arm is fixedly installed on one side of the top of the frame, and a welding gun is installed at the end of the mechanical arm; An adjusting mechanism, which is installed at the center of the top of the frame, the bottom of the adjusting mechanism is fixedly connected to the output end of the motor, and the top of the adjusting mechanism is installed with a chuck mechanism; A tube clamping mechanism, which is installed inside the adjusting mechanism and is located on the inner side of the chuck mechanism; The clamping plate mechanism comprises a connecting block, a bevel plate is fixedly installed on one side of the top of the connecting block, the bevel plate is inclined inwardly from top to bottom, and a plate groove is provided at the center position of the outer side of the bevel plate, a slide plate is slidably installed at the plate groove of the bevel plate, and a clamping ring block is fixedly installed at one end of the slide plate, a clamping groove is provided on the side of the clamping ring block away from the slide plate, and the width of the clamping groove gradually increases from top to bottom, and the flange is fixed by the clamping ring block. When the inclination angle of the flange is adjusted, the width of the clamping groove changes from top to bottom. When clamping, it cooperates with the bevel of the bevel plate, and when the flange is not subjected to an upward pulling force, it is always in the clamping groove, so as to avoid a gap in the welding position due to the movement of the flange during multi-angle welding and rotation, causing a deviation in the welding position. When the gap is large, cold welding is prone to occur, which affects the welding quality. A pad is fixedly installed at the center position of the top of the connecting block, and limit rods are fixedly installed on both sides of the top of the pad. The limit rods are tilted at the top of the pad, and the inclination angle of the limit rods is the same as the inclination angle of the inclined plate. Through the coordination of the inclination angle of the limit rod and the inclined plate, when the clamping ring block clamps the flange, when the worker adjusts the clamping ring block to the same height, the position of the flange is positioned so that the center position of the flange corresponds to the center position of the pipe clamping mechanism, and the auxiliary adjustment mechanism is used for angle adjustment after fixing the flange to avoid the angle adjustment causing the center of the flange and the center of the pipeline to be offset, resulting in incorrect welding position. The top end of the limit rod passes through the slide, and the outer side of the limit rod is slidably adapted to the inner wall of the slide.

[0004] Preferably, the adjusting mechanism comprises a turntable, the center position of the bottom of the turntable is fixedly connected to the output end of the motor, and a cylinder is fixedly installed on the top of the turntable, and the cylinder is evenly installed along the center position of the turntable, and a connecting frame is fixedly installed on the top of the turntable, the connecting frame is located on the inner side of the cylinder, and a slide plate is fixedly installed on the top of the inner wall of the connecting frame, and the position of the sliding shaft is restricted by the slide groove of the slide groove plate, so that when the angle is adjusted, the two ends of the sliding shaft can only tilt up and down, and cannot tilt left and right, so as to avoid the center position of the flange and the center position of the pipeline being inconsistent when the angle is adjusted. The position deviation makes it impossible for the pipe and the flange to be butt-welded, affecting the welding process. The slide plate is evenly installed along the center position of the connecting frame, and a slide groove is opened at the center position of the outer side of the slide plate. A sliding shaft is slidably installed at the slide groove of the slide plate, an inner ring plate is fixedly installed at one end of the sliding shaft, and an outer ring plate is fixedly installed at the other end of the sliding shaft. The outer ring plate and the inner ring plate are fixedly connected by the sliding shaft, and a turn buckle is rotatably installed on the outer side of the outer ring plate, and the turn buckle is evenly installed along the center position of the outer ring plate, and the inner wall of the turn buckle is fixedly connected to the output end of the cylinder.

[0005] Preferably, the tube clamping mechanism comprises a connecting disk, which is fixedly mounted at the center position of the top of the rotating disk, and a threaded barrel is fixedly mounted at the center of the top of the connecting disk, the inner wall of the threaded barrel is provided with threads, and the outer side of the threaded barrel is evenly provided with through grooves, a fixing ring is fixedly mounted at the bottom of the outer side of the threaded barrel, a stud is threadedly connected to the inner wall of the threaded barrel, a connecting rod is fixedly mounted on the top of the stud, a swivel is rotatably mounted on the outer side of the connecting rod, swivel arms are rotatably mounted on the inner walls of the swivel and the fixing ring, the swivel arms are evenly mounted along the center position of the threaded barrel, and an arc plate is rotatably mounted on one end of the swivel arm away from the swivel and the fixing ring, and a strip groove is provided at the center position of the outer side of the arc plate. In addition, a gasket is fixedly installed at the groove of the arc plate. By utilizing the elastic deformation of the gasket, when fixing the pipeline, the gasket first contacts the inner wall of the pipeline, and gradually deforms as the contact pressure increases. During the deformation process, the contact area with the pipeline is gradually increased, the friction is increased, and relative sliding of the pipeline when rotating is prevented. At the same time, the contact pressure is buffered to protect the pipeline. The gasket is made of elastic material. Side top plates are fixedly installed at both ends of the outer side of the arc plate. The side top plates cooperate with the gasket and are fixed after the side top plates contact the inner wall of the pipeline, so that the side top plates contact the inner wall of the pipeline on both sides of the gasket, and support both sides of the pressure position to avoid the low thickness of the pipeline causing large deformation during fixation, which affects the welding with the flange.

[0006] The present invention provides a multi-angle auxiliary welding machine for fire smoke exhaust pipes. It has the following beneficial effects: 1. The multi-angle auxiliary welding machine for fire smoke exhaust ducts fixes the flange through the clamping ring block. When adjusting the inclination angle of the flange, the width of the clamping groove changes from top to bottom. When clamping, it cooperates with the inclined surface of the inclined plate. When the flange is not subjected to upward pulling force, it is always in the clamping groove, avoiding gaps in the welding position due to the movement of the flange during multi-angle welding and rotation, causing deviations in the welding position. At the same time, when the gap is large, it is easy to cause cold welding, affecting the welding quality.

[0007] 2. The multi-angle auxiliary welding machine for fire smoke exhaust pipes cooperates with the inclination angle of the inclined plate through the limit rod. When the clamping ring block clamps the flange, when the worker adjusts the clamping ring block to the same height, the position of the flange is positioned so that the center position of the flange corresponds to the center position of the pipe clamping mechanism. The auxiliary adjustment mechanism adjusts the angle after fixing the flange to avoid the angle adjustment causing the center of the flange and the center of the pipe to shift, resulting in an incorrect welding position.

[0008] 3. The multi-angle auxiliary welding machine for fire smoke exhaust pipes limits the position of the sliding shaft through the slide groove of the slide plate. When adjusting the angle, the two ends of the sliding shaft can only tilt up and down, and cannot tilt left and right. This avoids the deviation between the center position of the flange and the center position of the pipe when the angle is adjusted, making it impossible for the pipe and the flange to be connected and welded, affecting the welding process.

[0009] 4. The multi-angle auxiliary welding machine for fire smoke exhaust pipes uses the elastic deformation of the gasket. When fixing the pipe, the gasket first contacts the inner wall of the pipe and gradually deforms as the contact pressure increases. During the deformation process, the contact area with the pipe is gradually increased, increasing friction to prevent relative sliding when the pipe rotates, while buffering the contact pressure to protect the pipe.

[0010] 5. The multi-angle auxiliary welding machine for fire smoke exhaust pipes cooperates with the side top plate and the gasket to complete the fixation after the side top plate contacts the inner wall of the pipe, so that the side top plate contacts the inner wall of the pipe on both sides of the gasket, and supports both sides of the pressure position to avoid the low thickness of the pipe, causing large deformation during fixation, affecting the welding with the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the external structure of a multi-angle auxiliary welding machine for fire smoke exhaust pipes of the present invention; Figure 2 This is a structural side view of a multi-angle auxiliary welding machine for fire smoke exhaust pipes of the present invention; Figure 3 It is a schematic diagram of the structure of the regulating mechanism of the present invention; Figure 4 It is a partial structural schematic diagram of the regulating mechanism of the present invention; Figure 5 It is a side view of the partial structure of the adjustment mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the chuck mechanism of the present invention; Figure 7 It is a side view of the chuck mechanism structure of the present invention; Figure 8 It is a schematic diagram of the structure of the pipe clamping mechanism of the present invention; Fig. 9 It is a partial structural schematic diagram of the tube clamping mechanism of the present invention.

[0012] In the figure: 1, frame; 2, clamping plate mechanism; 3, adjustment mechanism; 4, pipe clamping mechanism; 5, mechanical arm; 6, motor; 7, welding gun; 21, connecting block; 22, pad; 23, inclined plate; 24, limit rod; 25, clamping ring block; 26, slide plate; 31, turntable; 32, connecting frame; 33, cylinder; 34, turnbuckle; 35, outer ring plate; 36, slide plate; 37, inner ring plate; 38, sliding shaft; 401, connecting plate; 402, fixing ring; 403, threaded barrel; 404, stud; 405, connecting rod; 406, swivel; 407, swivel arm; 408, side top plate; 409, arc plate; 410, pad. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0014] The first embodiment, as Figure 1 to Figure 2 and Figure 6 to Figure 7 As shown, the present invention provides a technical solution: a multi-angle auxiliary welding machine for fire smoke exhaust pipes, comprising: A frame 1, a motor 6 is fixedly mounted on the bottom of the frame 1, an output end of the motor 6 passes through the frame 1 and extends to the top thereof, a mechanical arm 5 is fixedly mounted on one side of the top of the frame 1, and a welding gun 7 is mounted on the end of the mechanical arm 5; The adjusting mechanism 3 is installed at the center of the top of the frame 1, the bottom of the adjusting mechanism 3 is fixedly connected to the output end of the motor 6, and the top of the adjusting mechanism 3 is installed with a chuck mechanism 2; A tube clamping mechanism 4, which is installed inside the adjusting mechanism 3 and is located on the inner side of the chuck mechanism 2; Among them, the clamping mechanism 2 includes a connecting block 21, and a slanted plate 23 is fixedly installed on one side of the top of the connecting block 21. The slanted plate 23 is inclined inward from top to bottom, and a plate groove is opened at the center position of the outer side of the slanted plate 23. A slide plate 26 is slidably installed at the plate groove of the slanted plate 23. The worker puts the welded flange between the clamping ring blocks 25 and the flange into the clamping groove of the clamping ring block 25. Then the worker adjusts the position of the clamping ring block 25 on the inner side of the slanted plate 23, and slides the slide plate 26 on the outer side of the limit rod 24 to make the clamping ring block 25 at the same height. When the clamping ring block 25 is at the same height to clamp and fix the flange, the clamping ring block 25 is matched with the inclined surface of the slanted plate 23. When the clamping ring block 25 moves downward, the inner side contracts and clamps the edge of the flange, and the gravity of the flange itself is used to clamp and fix the inserted flange. A clamping ring block 25 is fixedly installed at one end of the plate 26, and a clamping groove is opened on the side of the clamping ring block 25 away from the slide plate 26, and the width of the clamping groove gradually increases from top to bottom. A pad 22 is fixedly installed at the center position of the top of the connecting block 21, and limiting rods 24 are fixedly installed on both sides of the top of the pad 22. When the adjusting mechanism 3 drives the clamping disc mechanism 2 to tilt the flange at a certain angle as required, the width of the clamping groove of the clamping ring block 25 changes. When the flange is not driven upward by external force, the flange cannot drive the clamping ring block 25 to move upward, so that the clamping position of the flange and the clamping ring block 25 cannot be changed. The limiting rod 24 is inclined at the top of the pad 22, and the inclination angle of the limiting rod 24 is the same as the inclination angle of the inclined plate 23. The top of the limiting rod 24 passes through the slide plate 26, and the outer side of the limiting rod 24 is slidably adapted to the inner wall of the slide plate 26.

[0015] The second embodiment is based on the first embodiment. Figures 3 to 5 As shown, the adjusting mechanism 3 includes a turntable 31, the center position of the bottom of the turntable 31 is fixedly connected to the output end of the motor 6, and a cylinder 33 is fixedly installed on the top of the turntable 31, and the cylinder 33 is evenly installed along the center position of the turntable 31, and a connecting frame 32 is fixedly installed on the top of the turntable 31, and the cylinder 33 drives the turnbuckle 34, so that the turnbuckle 34 drives the outer ring plate 35, and according to the required tilting angle, the cylinder 33 drives the outer ring plate 35 to tilt through the turnbuckle 34, and the outer ring plate 35 drives the inner ring plate 37 through the sliding shaft 38, so that the outer ring plate 35 and the inner ring plate 37 are driven to tilt the fixed flange through the clamping mechanism 2, and the connecting frame 32 is located on the inner side of the cylinder 33, and a slide plate 36 is fixedly installed on the top of the inner wall of the connecting frame 32, and the slide plate 36 is evenly installed along the center position of the circle of the connecting frame 32, and a slide groove is provided at the center position of the outer side of the slide plate 36.

[0016] A sliding shaft 38 is slidably installed at the sliding groove of the sliding groove plate 36, and an inner ring plate 37 is fixedly installed at one end of the sliding shaft 38, and an outer ring plate 35 is fixedly installed at the other end of the sliding shaft 38. The outer ring plate 35 and the inner ring plate 37 are fixedly connected through the sliding shaft 38, and a turn buckle 34 is rotatably installed on the outer side of the outer ring plate 35. When tilting, the sliding shaft 38 and the sliding groove plate 36 cooperate to make the sliding groove plate 36 limit the position of the sliding shaft 38, and then limit the center position of the inner ring plate 37 and the outer ring plate 35, so as to control the center position of the flange, cooperate with the pipe clamping mechanism 4 to fix the pipeline, so that the center position of the pipeline coincides with the center position of the flange, and the turn buckle 34 is evenly installed along the center position of the outer ring plate 35, and the inner wall of the turn buckle 34 is fixedly connected to the output end of the cylinder 33.

[0017] The third embodiment is based on the first and second embodiments. Figures 8 to 9 As shown, the pipe clamping mechanism 4 includes a connecting plate 401, which is fixedly mounted at the center of the top of the rotating disk 31, and a threaded barrel 403 is fixedly mounted at the center of the top of the connecting plate 401, the inner wall of the threaded barrel 403 is provided with threads, and the outer side of the threaded barrel 403 is evenly provided with through grooves, a fixing ring 402 is fixedly mounted at the bottom of the outer side of the threaded barrel 403, and a stud 404 is threadedly connected to the inner wall of the threaded barrel 403. When the pipe is fixed by the pipe clamping mechanism 4, the pipe is placed in the arc plate 409 is rotated on the outside of the arc plate 409 so that the arc plate 409 is wrapped on the inside by the pipe, and then the worker rotates the connecting rod 405, so that the connecting rod 405 drives the stud 404 to rotate on the inner wall of the threaded tube 403, and the threaded connection between the stud 404 and the threaded tube 403 is used to adjust the height of the stud 404 and the connecting rod 405 during rotation, so that the distance between the swivel 406 and the fixed ring 402 is reduced, and the connecting rod 405 is fixedly installed on the top of the stud 404, and the swivel 406 is rotatably installed on the outside of the connecting rod 405.

[0018] The inner walls of the rotating ring 406 and the fixed ring 402 are both rotatably installed with rotating arms 407, and the rotating arms 407 are evenly installed along the center position of the threaded tube 403, and the ends of the rotating arms 407 away from the rotating ring 406 and the fixed ring 402 are rotatably installed with arc plates 409, and the center position of the outer side of the arc plates 409 is provided with a groove. In the process of approaching, the arc plates 409 are driven to expand outward by the rotating arms 407. When expanding, the gasket 410 first contacts the inner wall of the pipe, and when the contact pressure of the arc plates 409 is gradually increased as they expand, the gasket 410 is elastically deformed and compressed until the side top plate 408 contacts the inner wall of the pipe, thereby completing the fixation, and the gasket 410 is fixedly installed at the groove of the arc plates 409, and the gasket 410 is made of elastic material, and the side top plates 408 are fixedly installed at both ends of the outer side of the arc plates 409.

[0019] When in use, the connecting flange required for welding of the smoke exhaust pipe is placed in the welding machine, and the flange is fixed by the clamping mechanism 2. Then, according to the inclination angle between the flange and the pipe during welding, the clamping mechanism 2 is driven by the adjusting mechanism 3 to make the flange tilt to a corresponding angle as needed. Then, the smoke exhaust pipe is placed in the welding machine so that the inner wall of the flange contacts the surface of the pipe. After the welding positions of the flange and the pipe correspond, the pipe is fixed by the inner wall of the pipe in the pipe clamping mechanism 4. Then, the welding gun 7 is driven by the mechanical arm 5 to approach the welding position of the flange and the pipe, and the adjusting mechanism 3 is driven to rotate by the motor 6, so that the adjusting mechanism 3 drives the flange and the pipe to rotate synchronously through the clamping mechanism 2 and the pipe clamping mechanism 4, and the welding gun 7 driven by the mechanical arm 5 is welded according to the required welding path.

[0020] In the clamping mechanism 2, the worker puts the welded flange between the clamping ring blocks 25 and the flange into the clamping groove of the clamping ring block 25. Then the worker adjusts the position of the clamping ring block 25 on the inner side of the inclined plate 23, and slides the slide plate 26 on the outer side of the limit rod 24 to make the clamping ring block 25 at the same height. When the clamping ring block 25 is at the same height to clamp and fix the flange, the clamping ring block 25 cooperates with the inclined surface of the inclined plate 23. When the clamping ring block 25 moves downward, the inner side contracts and clamps the edge of the flange, and the flange is clamped and fixed by its own gravity. When the adjusting mechanism 3 drives the clamping mechanism 2 to tilt the flange at a certain angle as needed, the width of the clamping groove of the clamping ring block 25 changes. When the flange is not driven upward by external force, the flange cannot drive the clamping ring block 25 to move upward, so that the clamping position of the flange and the clamping ring block 25 cannot be changed.

[0021] When the adjusting mechanism 3 drives the clamping mechanism 2 to adjust the inclination angle of the flange, the cylinder 33 drives the turnbuckle 34, so that the turnbuckle 34 drives the outer ring plate 35. According to the required inclination angle, the cylinder 33 drives the outer ring plate 35 to tilt through the turnbuckle 34, so that the outer ring plate 35 drives the inner ring plate 37 through the sliding shaft 38, so that the outer ring plate 35 and the inner ring plate 37 drive the fixed flange to tilt through the clamping mechanism 2. When tilting, the sliding shaft 38 and the slide groove plate 36 cooperate to make the slide groove plate 36 limit the position of the sliding shaft 38, and then limit the center position of the inner ring plate 37 and the outer ring plate 35, so as to control the center position of the flange, and cooperate with the pipe clamping mechanism 4 to fix the pipeline so that the center position of the pipeline coincides with the center position of the flange.

[0022] When the pipe is fixed by the pipe clamping mechanism 4, the pipe is placed on the outside of the arc plate 409 so that the arc plate 409 is wrapped inside by the pipe, and then the worker rotates the connecting rod 405 so that the connecting rod 405 drives the stud 404 to rotate on the inner wall of the threaded tube 403. The stud 404 is connected to the threaded tube 403 by thread, and the height of the stud 404 and the connecting rod 405 is adjusted during rotation to reduce the distance between the rotating ring 406 and the fixing ring 402. In the process of approaching, the arc plate 409 is driven to expand outward through the rotating arm 407. During expansion, the gasket 410 first contacts the inner wall of the pipe, and when the arc plate 409 expands and gradually increases the contact pressure, the gasket 410 is elastically deformed and compressed until the side top plate 408 contacts the inner wall of the pipe to complete the fixation.

[0023] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A multi-angle auxiliary welding machine for fire smoke exhaust pipes, characterized in that: include: A frame (1), a motor (6) being fixedly mounted on the bottom of the frame (1), an output end of the motor (6) passing through the frame (1) and extending to the top thereof, a mechanical arm (5) being fixedly mounted on one side of the top of the frame (1), a welding gun (7) being mounted on the end of the mechanical arm (5); An adjusting mechanism (3), the adjusting mechanism (3) being mounted at the center of the top of the frame (1), the bottom of the adjusting mechanism (3) being fixedly connected to the output end of the motor (6), and the top of the adjusting mechanism (3) being mounted with a chuck mechanism (2); A tube clamping mechanism (4), the tube clamping mechanism (4) being installed inside the adjusting mechanism (3), and the tube clamping mechanism (4) being located on the inner side of the clamping disc mechanism (2); The clamping mechanism (2) comprises a connecting block (21), a slanted panel (23) is fixedly mounted on one side of the top of the connecting block (21), the slanted panel (23) is inclined inward from top to bottom, and a plate groove is provided at the center position of the outer side of the slanted panel (23), a slide plate (26) is slidably mounted at the plate groove of the slanted panel (23), a clamping ring block (25) is fixedly mounted on one end of the slide plate (26), a clamping groove is provided on a side of the clamping ring block (25) away from the slide plate (26), and the width of the clamping groove gradually increases from top to bottom.

2. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 1 is characterized in that: A pad (22) is fixedly mounted at the center position of the top of the connection block (21), and limiting rods (24) are fixedly mounted on both sides of the top of the pad (22). The limiting rods (24) are arranged obliquely on the top of the pad (22), and the inclination angle of the limiting rods (24) is the same as the inclination angle of the inclined panel (23). The top end of the limiting rod (24) passes through the slide plate (26), and the outer side of the limiting rod (24) is slidably fitted with the inner wall of the slide plate (26).

3. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 2 is characterized in that: The regulating mechanism (3) comprises a rotating disk (31), the center position of the bottom of the rotating disk (31) is fixedly connected to the output end of the motor (6), and a cylinder (33) is fixedly installed on the top of the rotating disk (31), and the cylinder (33) is evenly installed along the center position of the rotating disk (31).

4. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 3 is characterized in that: A connecting frame (32) is fixedly mounted on the top of the rotating disk (31), the connecting frame (32) is located on the inner side of the cylinder (33), and a slide plate (36) is fixedly mounted on the top of the inner wall of the connecting frame (32), the slide plate (36) is evenly mounted along the center of the connecting frame (32), and a slide groove is provided at the center of the outer side of the slide plate (36).

5. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 4 is characterized in that: A sliding shaft (38) is slidably mounted at the sliding groove of the sliding groove plate (36); an inner ring plate (37) is fixedly mounted on one end of the sliding shaft (38); an outer ring plate (35) is fixedly mounted on the other end of the sliding shaft (38); and the outer ring plate (35) and the inner ring plate (37) are fixedly connected via the sliding shaft (38).

6. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 5, characterized in that: A turnbuckle (34) is rotatably mounted on the outer side of the outer ring plate (35); the turnbuckle (34) is evenly mounted along the center of the outer ring plate (35); and the inner wall of the turnbuckle (34) is fixedly connected to the output end of the cylinder (33).

7. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 6, characterized in that: The tube clamping mechanism (4) comprises a connecting disk (401), the connecting disk (401) being fixedly mounted at the center of the top of the rotating disk (31), and a threaded barrel (403) being fixedly mounted at the center of the top of the connecting disk (401), the inner wall of the threaded barrel (403) being provided with threads, and the outer side of the threaded barrel (403) being evenly provided with through grooves.

8. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 7, characterized in that: A fixing ring (402) is fixedly mounted on the bottom of the outer side of the threaded barrel (403), a stud (404) is threadedly connected to the inner wall of the threaded barrel (403), a connecting rod (405) is fixedly mounted on the top of the stud (404), and a swivel (406) is rotatably mounted on the outer side of the connecting rod (405).

9. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 8, characterized in that: The inner walls of the rotating ring (406) and the fixed ring (402) are both rotatably mounted with rotating arms (407), the rotating arms (407) are evenly mounted along the center of the threaded cylinder (403), and an arc-shaped plate (409) is rotatably mounted on one end of the rotating arm (407) away from the rotating ring (406) and the fixed ring (402).

10. The multi-angle auxiliary welding machine for fire smoke exhaust pipe according to claim 9, characterized in that: A groove is provided at the center of the outer side of the arc-shaped plate (409), and a gasket (410) is fixedly installed at the groove of the arc-shaped plate (409). The gasket (410) is made of elastic material. Side top plates (408) are fixedly installed at both ends of the outer side of the arc-shaped plate (409).

Images