Building pipe welding device with weld joint self-cleaning function

Abstract

The invention relates to the field of pipe welding equipment, in particular to a building pipe welding device with a weld joint self-cleaning function. According to the building pipe welding device with the weld joint self-cleaning function, a welding gun sequentially conducts multi-layer and multi-pass welding treatment on the upper side of a building pipe, and meanwhile an electric control suction machine on a C-shaped elastic plate on the left side is matched with an air spraying pipe to conduct pre-cooling treatment on a welded area on the surface of the building pipe; and meanwhile, an electric grinding wheel is used for conducting welding slag grinding treatment on a welding area on the lower side of the surface of the building pipe, and an electric control suction machine on a C-shaped elastic plate on the right side is used for being matched with an air spraying pipe to conduct cooling treatment and welding slag cleaning treatment on the ground area of the surface of the building pipe again. Multi-layer and multi-pass welding treatment is continuously carried out on the building pipes on the basis that shutdown waiting is not needed, and the technical problems that long cooling waiting time needs to be reserved for a welder to carry out multi-layer and multi-pass welding work on the building pipes, and tedious welding slag cleaning work needs to be carried out are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipe welding equipment, in particular to a building pipe welding device with weld self-cleaning function. BACKGROUND

[0002] Building pipes often face great internal pressure, temperature changes and corrosion from the external environment. In order to ensure the density and integrity of the building pipe weld and reduce stress concentration, engineers often use the strategy of multi-layer welding and small amount of welding. Welders need to perform multi-layer and multi-pass welding on building pipes. The multi-pass welding allows the weld to solidify in segments, preventing the occurrence of cold cracks and other hidden dangers, thereby significantly improving the overall service life of the pipe. The welder must closely monitor the solidification state of the molten pool for each pass. If the weld is not completely cooled, the next pass cannot be performed in haste. Therefore, sufficient waiting time must be allowed for the metal structure to gradually cool and change into a more stable phase structure to prevent thermal fatigue or structural deformation under the subsequent welding heat effect. Since the pipe interior is usually a closed space, heat is difficult to dissipate quickly, resulting in the difficulty of natural separation of the welding slag produced during welding, as in flat plate welding. If the welding slag is not cleaned in time, it may be mixed into the next layer of molten pool during subsequent multi-pass welding, resulting in pores and inclusions in the weld, which seriously weakens the pressure-bearing capacity of the pipe. The welder needs to perform tedious welding slag cleaning work after each layer of welding is completed to ensure the cleanliness of the weld surface. SUMMARY

[0003] In order to overcome the shortcomings of the welder needing to reserve a long cooling waiting time and performing tedious welding slag cleaning work when performing multi-layer and multi-pass welding on building pipes, the present application provides a building pipe welding device with weld self-cleaning function.

[0004] The building pipe welding device with weld self-cleaning function of the present application comprises a mounting frame, an electric control multi-axis moving machine, a welding gun, an electric control elevator, an electric polishing wheel, a transverse moving block, an electric control telescopic push rod, a C-shaped elastic plate, an electric control drive wheel, a roller and an electric control suction machine. The electric control multi-axis moving machine is installed on the mounting frame. The welding gun is installed on the electric control multi-axis moving machine. The electric control elevator is installed below the welding gun. The electric control elevator is installed on the mounting frame. The electric polishing wheel is installed on the electric control elevator. The mounting frame is slidably connected with a transverse moving block on the left side and the right side. The electric control telescopic push rod is installed on the mounting frame to drive the corresponding transverse moving block to move. The C-shaped elastic plate is fixedly connected to the opposite sides of the two transverse moving blocks. The electric control drive wheel is installed on the C-shaped elastic plate. The two rollers are rotatably connected to the upper side and the lower side of the C-shaped elastic plate. The electric control suction machine is installed on the upper side of the C-shaped elastic plate to suck air downward. The C-shaped elastic plate is provided with a hollow groove structure on the lower side.

[0005] Preferably, a support block is slidably connected to the transverse moving block, and is tightly attached to the upper and lower ends of the corresponding C-shaped elastic plate; a compression spring is fixed between the support block and the corresponding transverse moving block.

[0006] Preferably, an inclined baffle plate is fixed to the C-shaped elastic plate.

[0007] Preferably, a slag baffle plate is fixed to the inclined baffle plate, and is arranged above the corresponding electrically-controlled suction machine.

[0008] Preferably, a jet pipe for conveying downward compressed air flow is fixed to the slag baffle plate.

[0009] Preferably, a spray pipe for conveying cooling water mist is fixed to the C-shaped elastic plate on the left side.

[0010] Preferably, a waste box is arranged at the bottom of the mounting frame.

[0011] Preferably, a liquid inlet pipe structure and a liquid outlet pipe structure are sequentially connected to the waste box.

[0012] Preferably, a fixed plate is connected to the C-shaped elastic plate on the right side; a brush for removing surface slag of the building pipe is fixed to the fixed plate.

[0013] Preferably, the fixed plate is slidably connected to the corresponding C-shaped elastic plate; an electric push rod for driving the fixed plate to move transversely is arranged on the C-shaped elastic plate on the right side.

[0014] The building pipe welding device with the welding seam self-cleaning function provided by the application can continuously perform multi-layer and multi-pass welding on the building pipe without stopping and waiting, and can solve the technical problems of long waiting time for cooling and tedious slag cleaning work during multi-layer and multi-pass welding on the building pipe by welders, and can improve the welding efficiency of the building pipe and the slag treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the application;

[0016] Figure 2 is a perspective view of the electric polishing wheel of the application;

[0017] Figure 3 It is a front view schematic diagram of the C-shaped elastic plate of the application;

[0018] Figure 4 It is a perspective schematic diagram of the C-shaped elastic plate of the application;

[0019] Figure 5 It is a perspective schematic diagram of the inclined baffle of the application;

[0020] Figure 6 It is a perspective schematic diagram of the slag baffle of the application.

[0021] The figure marks: 11 - mounting frame, 12 - electric control multi-axis moving machine, 13 - welding gun, 14 - electric control lifter, 15 - electric grinding wheel, 16 - waste box, 1601 - liquid inlet pipe structure, 1602 - liquid outlet pipe structure, 21 - transverse moving block, 22 - electric control telescopic push rod, 23 - C-shaped elastic plate, 2301 - hollow groove structure, 24 - electric control driving wheel, 25 - roller, 26 - supporting block, 27 - compression spring, 28 - inclined baffle, 31 - electric control suction machine, 32 - slag baffle, 33 - air injection pipe, 41 - spray pipe, 51 - fixed plate, 52 - brush, 53 - electric push rod. DETAILED DESCRIPTION

[0022] The application will be specifically introduced below in combination with the drawings and specific embodiments.

[0023] Embodiment 1, a building pipe welding device with welding seam self-cleaning function, as shown in the figure, comprising a mounting frame 11, an electric control multi-axis moving machine 12, a welding gun 13, an electric control lifter 14, an electric grinding wheel 15, a transverse moving block 21, an electric control telescopic push rod 22, a C-shaped elastic plate 23, an electric control driving wheel 24, a roller 25 and an electric control suction machine 31; the electric control multi-axis moving machine 12 is installed on the mounting frame 11; the welding gun 13 is installed on the electric control multi-axis moving machine 12, and the welding gun 13 is connected with a welding main machine; the electric control lifter 14 is installed on the mounting frame 11; the electric grinding wheel 15 is installed on the electric control lifter 14, and the electric grinding wheel 15 is aligned below the welding gun 13; one transverse moving block 21 is slidably connected to the left side and the right side of the mounting frame 11 respectively; two electric control telescopic push rods 22 are installed on the mounting frame 11; the telescopic ends of the two electric control telescopic push rods 22 are fixedly connected with the corresponding transverse moving blocks 21 respectively; one C-shaped elastic plate 23 is fixedly connected to the opposite side of each of the two transverse moving blocks 21; two electric control driving wheels 24 are installed on each of the two C-shaped elastic plates 23; two rollers 25 are rotatably connected to the upper side and the lower side of each of the two C-shaped elastic plates 23 respectively; one electric control suction machine 31 is installed in the middle of the upper side of each of the two C-shaped elastic plates 23; one hollow groove structure 2301 is formed in the middle of the lower side of each of the two C-shaped elastic plates 23, and the air outlet port of the electric control suction machine 31 is aligned with the hollow groove structure 2301 of the corresponding C-shaped elastic plate 23. Figures 1-6 ​

[0024] As Figures 3-5 shown, each of the two lateral moving blocks 21 is slidably connected with a support block 26, and the upper side of the support block 26 is tightly attached to the upper end of the corresponding C-shaped elastic plate 23, and the lower side of the support block 26 is tightly attached to the lower end of the corresponding C-shaped elastic plate 23; two compression springs 27 are fixedly connected between each of the two support blocks 26 and the corresponding lateral moving block 21; one inclined baffle 28 is fixedly connected to each of the two C-shaped elastic plates 23, and the inclined baffle 28 is shielded above the corresponding lateral moving block 21 to avoid the welding slag splashed by the welding gun 13 during the welding process from splashing onto the electric control telescopic push rod 22; one slag blocking plate 32 is fixedly connected to each of the two inclined baffles 28, and the slag blocking plate 32 is shielded above the corresponding electric control suction machine 31; one air jet pipe 33 is fixedly connected to each of the two slag blocking plates 32, and the air jet pipe 33 is externally connected with a compressed gas flow conveying device.

[0025] In use of the building pipe welding device with the welding seam self-cleaning function, the welder first aligns the building pipe to be welded to between the two C-shaped elastic plates 23, and controls the electric control telescopic push rods 22 on both sides to push the corresponding lateral moving blocks 21 to drive the left and right C-shaped elastic plates 23 to approach each other, so that the upper and lower ends of the two C-shaped elastic plates 23 are tightly attached to the surface of the building pipe through the corresponding rollers 25, the electric control telescopic push rods 22 continue to push the lateral moving blocks 21 to drive the C-shaped elastic plates 23 to be extruded towards the building pipe, the upper and lower ends of the C-shaped elastic plates 23 are bent and deformed towards the lateral moving blocks 21 through the rollers 25, and the C-shaped elastic plates 23 are bent and deformed to drive the support blocks 26 to compress the compression springs 27, the compressed compression springs 27 push the support blocks 26 to drive the C-shaped elastic plates 23 to exert a fixed clamping force on the building pipe through the rollers 25 under the action of the reverse elastic force, at this time, the electric control driving wheels 24 on the two C-shaped elastic plates 23 are tightly attached to the surface of the building pipe, and the building pipe is slowly self-rotated in the counterclockwise direction through the electric control driving wheels 24.

[0026] Firstly, the electrically controlled driving wheel 24 drives the building pipe to rotate slowly, in this process, the electrically controlled multi-axis mobile machine 12 controls the welding gun 13 to perform multi-layer and multi-pass welding on the surface of the pipe, when the area on the pipe where one pass of welding is completed rotates to the top of the left C-shaped elastic plate 23, the external compressed air flow conveying device continuously sprays compressed air flow to this area through the air jet pipe 33, the area on the building pipe where welding is completed is preliminarily cooled by the continuously flowing compressed air flow, the temperature of the area on the building pipe where welding is completed is reduced, the sprayed compressed air flow flows along the slag blocking plate 32 and is continuously sucked into the C-shaped elastic plate 23 by the electrically controlled suction machine 31, when the area on the building pipe where welding is completed rotates through the inside of the left C-shaped elastic plate 23, the continuously downward sucked compressed air flow of the electrically controlled suction machine 31 continuously flows through the area on the building pipe where welding is completed, further reducing the temperature of the area on the building pipe where welding is completed, and the welding slag of the area on the building pipe where welding is completed gradually solidifies into a solid state.

[0027] When the area on the building pipe where welding is completed rotates through the electrically controlled grinding wheel 15, the electrically controlled elevator 14 drives the electrically controlled grinding wheel 15 to move upward and approach the area on the building pipe where welding is completed, and the welding slag solidified on the area on the building pipe where welding is completed is ground by the electrically controlled grinding wheel 15, since the temperature of this area has been preliminarily reduced, a large amount of high-temperature splashing debris can be avoided during the grinding of the electrically controlled grinding wheel 15, when the area on the building pipe where grinding is completed rotates through the inside of the right C-shaped elastic plate 23, the external compressed air flow conveying device continuously sprays compressed air flow to the building pipe through the air jet pipe 33, at the same time, the sprayed compressed air flow flows along the slag blocking plate 32 and is continuously sucked into the C-shaped elastic plate 23 by the electrically controlled suction machine 31, the continuously downward sucked compressed air flow of the electrically controlled suction machine 31 continuously flows through the area on the building pipe where grinding is completed, and continuously cools the area on the building pipe where grinding is completed, since a large amount of residue is left on the building pipe during the grinding of the welding slag by the electrically controlled grinding wheel 15, the continuously flowing compressed air flow can blow and clean the residue on the area on the building pipe where grinding is completed, so that the area on the building pipe where grinding is completed can be kept in a clean state and rotate back under the welding gun 13, the next pass of welding on the building pipe is performed by the welding gun 13, and multi-layer and multi-pass welding on the building pipe can be continuously performed without stopping and waiting.

[0028] In the embodiment 2, as shown in the above embodiment 1, the C-shaped elastic plate 23 on the left side is fixed with a spray pipe 41, and the spray pipe 41 is externally connected with a cooling water mist conveying device. Figures 1-6 A waste box 16 is placed at the bottom of the mounting frame 11, the waste box 16 is sequentially connected with a liquid inlet pipe structure 1601 and a liquid outlet pipe structure 1602, the liquid inlet pipe structure 1601 is externally connected with a cooling water conveying device, and the liquid outlet pipe structure 1602 is externally connected with a waste liquid filtering device.

[0029] In use of the building pipe welding device with the weld self-cleaning function, the external cooling water delivery device continuously delivers the cooling water flow into the waste box 16 through the liquid inlet pipe structure 1601, and the cooling water flow in the waste box 16 is discharged to the external waste liquid filtering device through the liquid outlet pipe structure 1602, so that the cooling water flow continuously flows in the waste box 16. During the continuous welding of the building pipe, the high-temperature metal slag is left on the surface of the building pipe after the welding, and the left welding area of the building pipe is cooled by the compressed air flow of the left air jet pipe 33 as the cooling medium, so that the high-temperature metal slag on the surface of the building pipe after the welding is completely solidified into a solid structure. Then, the left C-shaped elastic plate 23 is rotated into the left C-shaped elastic plate 23, the external cooling water mist delivery device continuously sprays the water mist cooling water to the surface of the building pipe after the welding through the spray pipe 41, the water mist is evaporated into water vapor when it contacts the high-temperature slag, and the water vapor is formed. At the same time, the left electric control suction machine 31 continuously blows the air flow downward to take away the water vapor, so that the heat in the water vapor is not accumulated in the left C-shaped elastic plate 23. Since there is no high-temperature slag in this area at this time, the water mist will not cause the slag to splash and spark. The left electric control suction machine 31 continuously blows the air flow downward to take away the water vapor, so that the high-temperature water vapor contacts the cooling water flow continuously flowing in the waste box 16, and the cooling water flow absorbs the high-temperature heat in the water vapor, so that the high-temperature water vapor is not diffused to the outside air to cause a safety threat to the surrounding personnel and equipment.

[0030] In the above embodiment 1, as shown in Figures 1-6 the right C-shaped elastic plate 23 of the embodiment is slidably connected with a fixed plate 51; the fixed plate 51 is fixedly connected with a brush 52; the right C-shaped elastic plate 23 is provided with an electric push rod 53 for driving the fixed plate 51 to move horizontally; and the fixed plate 51 is fixedly connected to the extension end of the electric push rod 53.

[0031] In the building pipe welding device with the weld self-cleaning function, during the continuous welding of the building pipe, after the building pipe completes the preliminary cooling and polishing, the temperature of the polished area of the building pipe surface is greatly reduced. At this time, the building pipe rotates through the right C-shaped elastic plate 23, and the static brush 52 tightly contacts the rotating building pipe surface to clean the remaining small amount of residue on the building pipe surface, and the compressed air flow of the right air jet pipe 33 is used to improve the cleaning effect of the building pipe surface. After the multi-layer and multi-pass welding of the building pipe is completed, the electric push rod 53 pulls the fixed plate 51 to drive the brush 52 to reciprocate through the outlet of the right air jet pipe 33 to clean the residue on the brush 52.

[0032] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A building pipe welding device with a weld self-cleaning function, comprising a mounting frame (11), an electric control multi-axis moving machine (12) and a welding gun (13), the mounting frame (11) is provided with the electric control multi-axis moving machine (12), and the electric control multi-axis moving machine (12) is provided with the welding gun (13); characterized in that It also comprises an electric control elevator (14), an electric polishing wheel (15), a transverse moving block (21), an electric control telescopic push rod (22), a C-shaped elastic plate (23), an electric control drive wheel (24), a roller (25) and an electric control suction machine (31); the electric control elevator (14) below the alignment welding gun (13) is arranged on the mounting frame (11); the electric control elevator (14) is provided with the electric polishing wheel (15); the left side and the right side of the mounting frame (11) are each slidably connected with a transverse moving block (21); the mounting frame (11) is provided with the electric control telescopic push rod (22) for driving the corresponding transverse moving block (21) to move; the opposite sides of the two transverse moving blocks (21) are each fixedly connected with a C-shaped elastic plate (23); the C-shaped elastic plate (23) is provided with the electric control drive wheel (24); the upper side and the lower side of the C-shaped elastic plate (23) are each rotatably connected with two rollers (25); the upper side of the C-shaped elastic plate (23) is provided with the electric control suction machine (31) for sucking air flow downward; and the lower side of the C-shaped elastic plate (23) is provided with a hollow groove structure (2301).

2. The building pipe welding device with the weld self-cleaning function according to claim 1, characterized in that, The transverse moving block (21) is slidably connected with a support block (26), and the support block (26) is tightly attached to the upper and lower ends of the corresponding C-shaped elastic plate (23); the support block (26) and the corresponding transverse moving block (21) are fixedly connected with a compression spring (27).

3. The building pipe welding device with the weld self-cleaning function according to claim 1, characterized in that, The C-shaped elastic plate (23) is fixedly connected with an inclined baffle (28).

4. The building pipe welding device with the weld self-cleaning function according to claim 3, characterized in that, The inclined baffle (28) is fixedly connected with a slag baffle (32), and the slag baffle (32) is shielded above the corresponding electric control suction machine (31).

5. The building pipe welding device with the weld self-cleaning function according to claim 4, characterized in that, The slag baffle (32) is fixedly connected with a jet pipe (33) for conveying compressed air flow downward.

6. The building pipe welding device with a weld self-cleaning function according to claim 1, characterized in that, The left C-shaped elastic plate (23) is fixedly connected with a spray pipe (41) for conveying cooling water mist.

7. The building pipe welding device with the weld self-cleaning function according to claim 1, characterized in that, The bottom of the mounting frame (11) is provided with a waste box (16).

8. The building pipe welding device with the weld self-cleaning function according to claim 7, characterized in that, The waste box (16) is sequentially connected with a liquid inlet pipe structure (1601) and a liquid outlet pipe structure (1602).

9. The building pipe welding device with the self-cleaning function of the welding seam according to any one of claims 1-8, characterized in that, The right C-shaped elastic plate (23) is connected with a fixed plate (51); the fixed plate (51) is fixedly connected with a brush (52) for sweeping the surface residue of the building pipe.

10. The building pipe welding device with a weld self-cleaning function according to claim 9, characterized in that, The fixed plate (51) is slidably connected with the corresponding C-shaped elastic plate (23); and the right C-shaped elastic plate (23) is provided with an electric push rod (53) for driving the fixed plate (51) to move transversely.

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