Pipeline all-position welding flux laying device and welding machine

Abstract

The utility model discloses a pipeline all-position welding flux laying device and a welding machine, the pipeline all-position welding flux laying device comprises a welding flux box, a first driving mechanism and a second driving mechanism, the welding flux box comprises a box body and a pressing plate, the box body is used for abutting against the outer side wall of a pipeline in a sliding mode, and the pressing plate is used for pressing the welding flux box. The side wall, abutting against the pipeline, of the box body is provided with an opening, the pressing plate is arranged in the box body in a sealed and sliding mode so that a near cavity and a far cavity which are not communicated with each other can be divided in the box body, the near cavity is close to the pipeline, and the far cavity is far away from the pipeline; the first driving mechanism is connected with the pressing plate and used for driving the pressing plate to move in the radial direction of the pipeline so that the pressing plate can be close to or away from the pipeline. The welding flux laying device has the advantages that when the welding flux laying device is used for laying the welding flux at the butt joint of the pipeline, the pipeline does not need to be matched with rotation, and the welding flux laying device is suitable for laying the welding flux at the butt joint of the pipeline under the condition that the pipeline is inconvenient to rotate.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding equipment technical field especially relates to a pipeline all position welding agent laying device and welding machine. BACKGROUND

[0002] Submerged arc welding has the advantages of stable quality, high productivity, no arc light and little smoke. Submerged arc welding has high automation degree and is suitable for large-scale production operation. Since the weld is covered with powder during the welding process, oxidation and gas inclusion can be effectively reduced, and the mechanical properties and appearance quality of the weld can be improved. In submerged arc welding, an electric arc is ignited between the welding wire and the workpiece. The arc heat melts the welding wire, the workpiece and the flux to form a metal pool, which is protected from air by the molten slag and flux vapor.

[0003] In the connection process of metal pipes, after the butt welding of the two metal pipes, the joint needs to be fully welded by submerged arc welding, which requires the laying of welding agent on the joint. The existing welding agent laying device (such as the welding agent laying device and laying port structure disclosed in application No. 201920820477.2) is designed for laying welding agent for submerged arc welding of flat plates. The welding agent falls from the hopper to the welding torch by gravity. The welding laying device with the above structure needs to rotate the pipe when laying welding agent on the joint of the pipe. However, in the case where the pipe cannot be rotated, the welding laying device is not suitable. SUMMARY

[0004] The utility model aims at overcoming the above technical defects and providing a pipeline all position welding agent laying device and welding machine to solve the technical problem of laying welding agent on the joint of the pipe when the welding laying device is not suitable for the case where the pipe cannot be rotated.

[0005] To achieve the above technical purpose, the technical scheme of the utility model provides a pipeline all position welding agent laying device, which comprises:

[0006] A welding agent box, which comprises a box body and a pressing plate, the box body is used for slidingly abutting the outer sidewall of the pipe, the sidewall abutting the box body is provided with an opening, and the pressing plate is sealingly and slidingly arranged in the box body to divide the box body into a proximal cavity and a distal cavity that are not connected to each other, the proximal cavity is close to the pipe, and the distal cavity is away from the pipe;

[0007] A first driving mechanism connected with the pressing plate, used for driving the pressing plate to move along the radial direction of the pipe, so that the pressing plate approaches or moves away from the pipe, and the welding agent powder in the proximal cavity is extruded at the joint;

[0008] A second driving mechanism, used for driving the box body to move along the axial direction or the circumferential direction of the pipe.

[0009] Further, the pressing plate is in an arc shape, and the radius of the arc shape is equal to the radius of the pipe.

[0010] Further, the pressing plate is provided with a feeding port, and the flux box further comprises a feeding pipe, one end of the feeding pipe penetrating through the side wall of the box body and extending into the distal cavity to communicate with the feeding port, and the other end of the feeding pipe communicating with a feeding system.

[0011] Further, the part of the feeding pipe located in the distal cavity is retractable.

[0012] Further, the first driving mechanism comprises an air pump which is detachably arranged on the box body and used to inflate or deflate the distal cavity, so that the air pressure in the distal cavity is greater than or less than the air pressure in the proximal cavity, when the air pressure in the distal cavity is greater than the air pressure in the proximal cavity, the pressing plate gradually approaches the pipe, and when the air pressure in the distal cavity is less than the air pressure in the proximal cavity, the pressing plate gradually moves away from the pipe.

[0013] Further, the second driving mechanism comprises a mounting bracket, a translation driving member and a rotation driving member, the mounting bracket is arranged at the side of the pipe, the translation driving member is slidingly arranged on the mounting bracket and can move along the axial direction of the pipe, the translation driving member is connected with the box body, and the output shaft of the rotation driving member is fixedly connected with the mounting bracket and used to drive the mounting bracket to rotate around the pipe.

[0014] Further, the pipe full-position flux applying device further comprises a rack, both ends of the mounting bracket being rotatably arranged on the rack, and the rotation driving member being fixedly arranged on the rack, and the rack is used to horizontally place the pipe.

[0015] Further, the mounting bracket comprises a sliding rail, a first mounting rod and a second mounting rod, the sliding rail is arranged at the side of the pipe along the axial direction of the pipe, the translation driving member is slidingly arranged on the sliding rail and can move along the length direction of the sliding rail, the first mounting rod is arranged at one end of the pipe along the radial direction of the pipe, one end of the first mounting rod is fixedly connected with the sliding rail, and the other end of the first mounting rod is rotatably connected with the rack, the second mounting rod is arranged at the other end of the pipe along the radial direction of the pipe, one end of the second mounting rod is fixedly connected with the sliding rail, and the other end of the second mounting rod is fixedly connected with the output shaft of the rotation driving member.

[0016] Further, the pipe full-position flux applying device further comprises a clamping mechanism, the clamping mechanism is arranged on the rack and used to clamp or release one end of the pipe.

[0017] In another aspect, the utility model provides a kind of welding machine, including the pipeline all-position flux laying device and welding torch of above-mentioned, the welding head of the welding torch is along the radial direction of pipeline and passes through the box body and the pressing plate, and extends into the near cavity, to reach the joint of pipeline, the welding head of the welding torch can generate arc, the welding head of the welding torch is fixed with the box body, and the welding head of the welding torch is sealed slidingly connected with the pressing plate.

[0018] Compared with the prior art, the utility model has the beneficial effects that when in use, the box body is slidably abutted with the outer side wall of the pipeline, the first driving mechanism is controlled to drive the pressing plate to move along the radial direction of the pipeline, the pressing plate is close to the pipeline, the pressing plate can extrude the flux powder in the near cavity to the joint, the second driving mechanism is controlled to drive the box body to move along the circumferential direction of the pipeline, thereby realizing all-position flux laying on the weld of the pipeline, the second driving mechanism is controlled to drive the box body to move along the axial direction of the pipeline, thereby realizing all-position flux laying on multiple welds of the pipeline, the first driving mechanism is controlled to drive the pressing plate to move along the radial direction of the pipeline, the pressing plate is away from the pipeline, and the pressing plate can be reset, and the flux laying device is used to lay flux on the joint of the pipeline, without the cooperation of pipeline rotation, which is suitable for laying flux on the joint of the pipeline under the condition that the pipeline is inconvenient to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic view of the pipeline all-position flux laying device and welding machine provided by the utility model;

[0020] Figure 2 is a three-dimensional structural schematic view of the pipeline all-position flux laying device and welding machine provided by the utility model from another perspective;

[0021] Figure 3 is a structural schematic view of the connection relationship between the flux box and the welding torch in the pipeline all-position flux laying device and welding machine provided by the utility model;

[0022] Figure 4 is Figure 3 is a structural schematic view of the flux box in the pipeline all-position flux laying device and welding machine provided by the utility model after omitting one side plate;

[0023] In the figure: 1-pipeline, 100-welding agent box, 110-box body, 111-near cavity, 112-far cavity, 113-discharge port, 120-pressing plate, 121-feeding port, 130-feeding pipe, 140-pulley, 200-first driving mechanism, 210-air pump, 220-gas conveying pipe, 230-solenoid valve, 240-displacement sensor, 300-second driving mechanism, 310-mounting frame, 311-sliding rail, 312-first mounting rod, 313-second mounting rod, 320-translation driving part, 330-rotation driving part, 400-rack, 410-bottom plate, 420-machine case, 430-control box, 440-carrier, 500-clamping mechanism, 600-welding gun. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] The utility model provides a pipeline all position welding agent laying device, its structure as Figure 1 Figure 4 As shown in the figure, including welding agent box 100, first driving mechanism 200 and second driving mechanism 300, the welding agent box 100 includes box body 110 and pressing plate 120, the box body 110 is used to be in sliding abutment with the lateral wall of pipeline 1, the lateral wall of the box body 110 and pipeline 1 abutment is provided with opening, the pressing plate 120 is sealed and is slid and is arranged in the box body 110, to separate the near cavity 111 and far cavity 112 that do not communicate with each other in the box body 110, the near cavity 111 is close to pipeline 1, the far cavity 112 is far away from pipeline 1, the first driving mechanism 200 is connected with the pressing plate 120, is used to drive the pressing plate 120 moves along the radial direction of pipeline 1, to make the pressing plate 120 close to or far away from pipeline 1, and the welding agent powder in the near cavity 111 is extruded at the joint; the second driving mechanism 300 is used to drive the box body 110 moves along the axial direction of pipeline 1 or circumferential direction.

[0026] ​In use, the box body 110 is in sliding abutment with the outer side wall of the pipeline 1, the first driving mechanism 200 is controlled to drive the first driving mechanism 200 to drive the pressing plate 120 to move along the radial direction of the pipeline 1, so that the pressing plate 120 is close to the pipeline 1, the pressing plate 120 can extrude the flux powder in the near cavity 111 at the joint, the second driving mechanism 300 is controlled to drive the second driving mechanism 300 to drive the box body 110 to move along the circumferential direction of the pipeline 1, so that the pipeline 1 is fully-positioned and the flux is applied, the second driving mechanism 300 is controlled to drive the box body 110 to move along the axial direction of the pipeline 1, so that the pipeline 1 is fully-positioned and the flux is applied, the first driving mechanism 200 is controlled to drive the first driving mechanism 200 to drive the pressing plate 120 to move along the radial direction of the pipeline 1, so that the pressing plate 120 is away from the pipeline 1, and the pressing plate 120 is reset. When the flux applying device is used to apply the flux at the joint of the pipeline 1, the pipeline 1 does not need to be rotated, and the flux can be applied at the joint of the pipeline 1 in the case that the pipeline 1 cannot be rotated.

[0027] As a preferred embodiment, please refer to Figure 4 The pressing plate 120 is in an arc structure, and the arc is equal to the arc of the pipeline 1, so that the thickness of the flux powder applied at different positions is equal.

[0028] As a preferred embodiment, please refer to Figure 3 and Figure 4 The pressing plate 120 is provided with a feeding port 121, the flux box 100 further comprises a feeding pipe 130, one end of the feeding pipe 130 penetrates through the side wall of the box body 110 and extends into the far cavity 112 to communicate with the feeding port 121, and the other end of the feeding pipe 130 communicates with a feeding system, so that the feeding pipe 130 can supplement the flux powder in the near cavity 111.

[0029] As a preferred embodiment, the part of the feeding pipe 130 in the far cavity 112 is in a telescopic structure, and when the pressing plate 120 moves along the radial direction of the pipeline 1, the part of the feeding pipe 130 in the far cavity 112 can be lengthened or shortened, and the pressing plate 120 is not disturbed when approaching or moving away from the pipeline 1.

[0030] As a preferred embodiment, the flux box 100 further comprises a valve, the valve is arranged on the feeding pipe 130 and is used to control the opening and closing of the feeding pipe 130, when the flux box 100 rotates to the lower side of the pipeline 1, the valve is closed, so that the flux powder in the near cavity 111 cannot flow back to the feeding pipe 130.

[0031] As a preferred embodiment, please refer toFigure 3 The flux box 100 further comprises a plurality of pulleys 140, each of which is arranged on the box body 110 opposite to each other and used to roll on the outer wall of the pipeline 1 to facilitate the circumferential movement of the box body 110 on the pipeline 1.

[0032] As a preferred embodiment, refer to Figure 4 The box body 110 is provided with a discharge port 113 on the side wall, which is in communication with the near cavity 111, and the excess flux powder in the near cavity 111 can be discharged from the discharge port 113. During the process of using the device to apply flux powder to the joint of the pipeline 1, a small amount of flux powder will be discharged from the discharge port 113.

[0033] As a preferred embodiment, refer to Figure 4 The first driving mechanism 200 comprises an air pump 210 which is detachably arranged on the box body 110 and used to inflate or exhaust the gas in the far cavity 112 to make the air pressure in the far cavity 112 greater or less than that in the near cavity 111. When the air pressure in the far cavity 112 is greater than that in the near cavity 111, the pressing plate 120 gradually approaches the pipeline 1, and when the air pressure in the far cavity 112 is less than that in the near cavity 111, the pressing plate 120 gradually moves away from the pipeline 1. When it is needed to apply flux powder to the pipeline 1, the air pump 210 is controlled to inflate the far cavity 112, so that the air pressure in the far cavity 112 is greater than that in the near cavity 111, and the pressing plate 120 gradually approaches the pipeline 1 under the action of pressure, thereby extruding the flux powder in the near cavity 111 and extruding the flux powder to the joint of the pipeline 1. When it is needed to reset the pressing plate 120, the air pump 210 is controlled to exhaust the gas in the far cavity 112, so that the air pressure in the far cavity 112 is less than that in the near cavity 111, and the pressing plate 120 gradually moves away from the pipeline 1 under the action of pressure, thereby achieving the reset of the pressing plate 120.

[0034] As a preferred embodiment, refer to Figure 4 The first driving mechanism 200 further comprises a gas conveying pipe 220 and a solenoid valve 230. One end of the gas conveying pipe 220 is in communication with the air pump 210, and the other end of the gas conveying pipe 220 is in communication with the far cavity 112. The solenoid valve 230 is arranged on the gas conveying pipe 220 and used to control the opening and closing of the gas conveying pipe 220. When the solenoid valve 230 is opened, the gas conveying pipe 220 is in an open state, and the far cavity 112 can be inflated or the gas in the far cavity 112 can be exhausted through the gas conveying pipe 220.

[0035] As a preferred embodiment, refer to Figure 4 The first driving mechanism 200 further comprises a displacement sensor 240, which is arranged in the proximal cavity 111 and fixedly connected with the pressing plate 120, so as to measure the moving distance of the pressing plate 120 and determine the extrusion of the solder powder by the pressing plate 120.

[0036] As a preferred embodiment, refer to Figure 1 and Figure 2 The second driving mechanism 300 comprises a mounting frame 310, a translation driving member 320 and a rotation driving member 330. The mounting frame 310 is arranged at the side of the pipe 1. The translation driving member 320 is slidingly arranged on the mounting frame 310 and can move along the axial direction of the pipe 1. The translation driving member 320 is connected with the box body 110. The output shaft of the rotation driving member 330 is fixedly connected with the mounting frame 310, so as to drive the mounting frame 310 to rotate around the pipe 1. By controlling the rotation driving member 330, the output shaft of the rotation driving member 330 rotates and drives the mounting frame 310 to rotate around the pipe 1. Then, the box body 110 is driven by the translation driving member 320 to move around the pipe 1 in the circumferential direction, so as to realize the full-position solder application on the weld of the pipe 1. By controlling the translation driving member 320, the translation driving member 320 moves along the axial direction of the pipe 1, so as to realize the full-position solder application on multiple welds of the pipe 1.

[0037] As a preferred embodiment, the translation driving member 320 is a translation motor, and the rotation driving member 330 is a rotation motor.

[0038] As a preferred embodiment, refer to Figure 1 and Figure 2 The pipe full-position solder application device further comprises a rack 400. The two ends of the mounting frame 310 are rotationally arranged on the rack 400. The rotation driving member 330 is fixedly arranged on the rack 400. The rack 400 is used to horizontally place the pipe 1. The rack 400 can support the two ends of the mounting frame 310, support the rotation driving member 330 and support the pipe 1.

[0039] As a preferred embodiment, refer to Figure 1 and Figure 2The mounting frame 310 comprises a slide rail 311, a first mounting rod 312 and a second mounting rod 313, the slide rail 311 is arranged on the side of the pipeline 1 in the axial direction of the pipeline 1, the translation driving part 320 is slidingly arranged on the slide rail 311 and can move along the length direction of the slide rail 311, the first mounting rod 312 is arranged on one end of the pipeline 1 in the radial direction of the pipeline 1, one end of the first mounting rod 312 is fixedly connected with the slide rail 311, the other end of the first mounting rod 312 is rotationally connected with the rack 400, the second mounting rod 313 is arranged on the other end of the pipeline 1 in the radial direction of the pipeline 1, one end of the second mounting rod 313 is fixedly connected with the slide rail 311, the other end of the second mounting rod 313 is fixedly connected with the output shaft of the rotation driving part 330, by controlling the rotation driving part 330, the output shaft of the rotation driving part 330 rotates and drives the second mounting rod 313 to rotate around the pipeline 1, thereby driving the slide rail 311 and the first mounting rod 312 to rotate around the pipeline 1, and then the translation driving part 320 drives the box body 110 to move around the pipeline 1 in the circumferential direction, so as to realize the full-position welding flux laying on the welding seam of the pipeline 1, by controlling the translation driving part 320 to move along the length direction of the slide rail 311, the full-position welding flux laying on multiple welding seams of the pipeline 1 can be realized.

[0040] As a preferred embodiment, refer to Figure 1 and Figure 2 The pipeline full-position welding flux laying device further comprises a clamping mechanism 500, which is arranged on the rack 400 and used to clamp or release one end of the pipeline 1, so as to clamp and fix the pipeline 1 and prevent the pipeline 1 from rotating.

[0041] As a preferred embodiment, refer to Figure 1 and Figure 2 The clamping mechanism 500 is a three-jaw chuck, which is a prior art and will not be described in detail in the present solution.

[0042] As a preferred embodiment, refer to Figure 1 and Figure 2 The rack 400 comprises a bottom plate 410, a machine box 420, a control box 430 and a loading platform 440, the machine box 420, the control box 430 and the loading platform 440 are fixedly arranged on the bottom plate 410, the loading platform 440 is located between the machine box 420 and the control box 430, the rotation driving part 330 is fixedly arranged on the control box 430, the other end of the first mounting rod 312 is rotationally connected with the machine box 420, the three-jaw chuck is fixedly arranged on the machine box 420, and the loading platform 440 is used to place the other end of the pipeline 1.

[0043] Please refer to Figure 1 - Figure 4 Based on the above-mentioned pipeline all-position flux laying device, the utility model also provides a welding machine, including above-mentioned pipeline all-position flux laying device and welding torch 600, the welding head of welding torch 600 is along the radial of pipeline 1 and is through the box body 110 and the pressing plate 120, and stretches into the near cavity 111, to reach the joint of pipeline 1, the welding head of welding torch 600 can produce arc, the welding head of welding torch 600 is solid with the box body 110, the welding head of welding torch 600 and the pressing plate 120 sealed sliding connection, through the welding head of welding torch 600 can the movement of pressing plate 120 is oriented, welding torch 600 Ai Ke transports welding wire, the welding head of welding torch 600 can ignite arc when conducting, and arc heat makes welding wire, pipeline 1 surface and flux powder melt and form metal bath, realize flux laying and welding simultaneously, avoid flux powder to drop, also improved welding efficiency.

[0044] In order to better understand the utility model, the following combines Figure 1 - Figure 4 The working principle of the technical scheme of the utility model is described in detail:

[0045] In use, the box body 110 and the outer side wall of the pipeline 1 are in sliding abutment, the flux powder can be supplemented into the near cavity 111 through the feed pipe 130, the air pump 210 can be controlled to charge air into the far cavity 112, so that the air pressure in the far cavity 112 is greater than that in the near cavity 111, and the pressing plate 120 gradually approaches the pipeline 1 under the action of pressure, thereby extruding the flux powder in the near cavity 111 and extruding the flux powder at the joint of the pipeline 1, and then the rotating drive member 330 is controlled, the output shaft of the rotating drive member 330 rotates and drives the mounting bracket 310 to rotate around the pipeline 1, and then the box body 110 is driven by the translation drive member 320 to move circumferentially around the pipeline 1, thereby realizing all-position flux laying at the weld of the pipeline 1, the translation drive member 320 is controlled to move along the axial direction of the pipeline 1, thereby realizing all-position flux laying at multiple welds of the pipeline 1, the air pump 210 is controlled to exhaust the gas in the far cavity 112, so that the air pressure in the far cavity 112 is less than that in the near cavity 111, and the pressing plate 120 gradually moves away from the pipeline 1 under the action of pressure, thereby realizing the reset of the pressing plate 120, and the flux laying device is used to lay flux at the joint of the pipeline 1, without the need for the pipeline 1 to rotate, which is suitable for laying flux at the joint of the pipeline 1 when the pipeline 1 is not convenient to rotate.

[0046] The pipeline full-position welding agent laying device and the welding machine have the following beneficial effects:

[0047] (1) the far cavity 112 is inflated by the air pump 210, so that the air pressure in the far cavity 112 is greater than the air pressure in the near cavity 111; the pressing plate 120 gradually approaches the pipeline 1 under the action of the pressure, thereby extruding the welding agent powder in the near cavity 111 and extruding the welding agent powder at the joint of the pipeline 1; the gas in the far cavity 112 is extracted by the air pump 210, so that the air pressure in the far cavity 112 is less than the air pressure in the near cavity 111; the pressing plate 120 gradually moves away from the pipeline 1 under the action of the pressure, thereby achieving the reset of the pressing plate 120;

[0048] (2) the welding agent laying device can realize full-position welding agent laying at multiple welding joints of the pipeline 1, realizes simultaneous welding agent laying and welding, avoids the falling of the welding agent powder, and improves the welding efficiency;

[0049] (3) the welding agent laying device does not need to rotate the pipeline 1 when laying the welding agent at the joint of the pipeline 1, and is suitable for laying the welding agent at the joint of the pipeline 1 in the case that the pipeline 1 is inconvenient to rotate.

[0050] The specific implementation mode of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and deformations according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A pipeline all-position flux laying device, characterized in that: include: A flux box, comprising a box body and a pressure plate, wherein the box body is configured to slidably abut against an outer side wall of a pipe, the side wall of the box body abutting against the pipe being open, and the pressure plate being sealingly slidably disposed within the box body to separate a near cavity and a far cavity that are not connected to each other within the box body, wherein the near cavity is close to the pipe and the far cavity is far from the pipe; a first driving mechanism connected to the pressing plate, for driving the pressing plate to move radially along the pipe so as to move the pressing plate closer to or farther away from the pipe and squeeze the flux powder in the near cavity onto the butt joint; The second driving mechanism is used to drive the box body to move axially or circumferentially along the pipeline.

2. The pipeline all-position flux laying device according to claim 1, characterized in that: The pressing plate is an arc-shaped structure, and its curvature is equal to the curvature of the pipeline.

3. The pipeline all-position flux laying device according to claim 1, characterized in that: A feed port is provided on the pressure plate, and the flux box further includes a feed pipe, one end of which passes through the side wall of the box body and extends into the distal cavity to communicate with the feed port, and the other end of the feed pipe is communicated with the feeding system.

4. The pipeline all-position flux laying device according to claim 3, characterized in that: The portion of the feeding tube located in the distal cavity is a telescopic structure.

5. The pipeline all-position flux laying device according to claim 1, characterized in that: The first driving mechanism includes an air pump, which is detachably mounted on the box body and is used to inflate or extract gas from the distal cavity so that the air pressure in the distal cavity is greater than or less than the air pressure in the proximal cavity. When the air pressure in the distal cavity is greater than the air pressure in the proximal cavity, the pressure plate gradually approaches the pipe; when the air pressure in the distal cavity is less than the air pressure in the proximal cavity, the pressure plate gradually moves away from the pipe.

6. The pipeline all-position flux laying device according to claim 1, characterized in that: The second driving mechanism includes a mounting frame, a translational driving member and a rotational driving member. The mounting frame is arranged on the side of the pipeline. The translational driving member is slidably arranged on the mounting frame and can move along the axial direction of the pipeline. The translational driving member is connected to the box body. The output shaft of the rotational driving member is fixedly connected to the mounting frame for driving the mounting frame to rotate around the pipeline.

7. The pipeline all-position flux laying device according to claim 6, characterized in that: It also includes a frame, both ends of the mounting frame are rotatably mounted on the frame, the rotating drive member is fixed on the frame, and the frame is used for horizontal placement of pipelines.

8. The pipeline all-position flux laying device according to claim 7, characterized in that: The mounting frame includes a slide rail, a first mounting rod and a second mounting rod, the slide rail being arranged on the side of the pipeline along the axial direction of the pipeline, the translation driving member being slidably arranged on the slide rail and movable along the length direction of the slide rail, the first mounting rod being arranged at one end of the pipeline along the radial direction of the pipeline, one end of the first mounting rod being fixedly connected to the slide rail, the other end of the first mounting rod being rotatably connected to the frame, the second mounting rod being arranged at the other end of the pipeline along the radial direction of the pipeline, one end of the second mounting rod being fixedly connected to the slide rail, and the other end of the second mounting rod being fixedly connected to the output shaft of the rotation driving member.

9. The pipeline all-position flux laying device according to claim 7, characterized in that: It also includes a clamping mechanism, which is arranged on the frame and is used to clamp or loosen one end of the pipeline.

10. A welding machine, characterized in that: It includes the pipeline all-position flux laying device and welding gun as described in any one of claims 1 to 9, the welding head of the welding gun penetrates the box body and the pressure plate along the radial direction of the pipeline, and extends into the near cavity to reach the seam of the pipeline, the welding head of the welding gun can generate an arc, the welding head of the welding gun is fixed to the box body, and the welding head of the welding gun is sealed and slidably connected to the pressure plate.

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