Boiler pipeline welding device for building construction

Abstract

The boiler pipeline welding device for building construction comprises a bottom plate, a fixing assembly is arranged at the top of the bottom plate, a welding mechanical arm is fixedly installed at the top of the bottom plate, a gas injection assembly is arranged at the top of the welding mechanical arm, and a cleaning assembly is arranged on the outer side of the gas injection assembly. The gas injection assembly comprises a top block. The invention relates to the technical field of boiler pipeline welding. According to the boiler pipeline welding device for building construction, plasma and molten pools in different ranges generated during welding can be automatically matched according to different thicknesses of boiler pipelines, for thick pipelines, the length of a gas nozzle is increased, the range of blown gas is wider, and a large-area welding area can be effectively covered; for a thin pipeline, the length of the air tap is shortened, the situation that the thin pipeline is overcooled or impacted due to the fact that the gas flow is too large is avoided, and the universality and the welding effect of the welding device on pipelines of different specifications are improved through the self-adaptive adjusting function.

Description

Technical Field

[0001] The invention relates to the technical field of boiler pipeline welding, in particular to a boiler pipeline welding device for building construction. Background Art

[0002] In the field of construction, boilers are key equipment, and the quality of their pipeline welding is directly related to the safety and stable operation of the entire system. At present, the technical means used for boiler pipeline welding in construction mainly include manual arc welding, gas shielded welding and some automated welding equipment. Laser welding is a commonly used welding method. Laser welding is an advanced welding technology that uses a high-energy-density laser beam as a heat source. When the laser beam is irradiated to the welding part of the boiler pipeline, the light energy is quickly converted into heat energy, causing the local area of the welded material to melt quickly or even vaporize, and after the material cools and solidifies, a firm connection is achieved.

[0003] Generally speaking, the thicker the pipe is, the higher the laser energy required for welding, and the larger the volume of the plasma and molten pool generated. In order to effectively remove the plasma and protect the molten pool, a larger flow of auxiliary gas is required. The continuous large flow of gas constantly flushes the welding area, which will take away a large amount of heat and cause the welding area to cool too quickly, which may cause changes in the structure of the weld metal, produce hardened structure, increase the brittleness and crack sensitivity of the weld joint, and also affect the mechanical properties of the weld joint; the thicker the pipe wall is, the more slag is generated during welding, and the greater the gas pressure required for welding to clean the slag. The gas impact with excessive pressure will disrupt the normal state of the molten pool and cause the liquid metal in the molten pool to splash out, which will not only cause metal loss, but may also affect the forming and quality of the weld, resulting in defects such as uneven weld surface, pores or slag inclusions.

[0004] To this end, the present invention provides a boiler pipe welding device for building construction to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a boiler pipe welding device for construction, which solves the above problems.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A boiler pipeline welding device for building construction, including a bottom plate, a fixing component is arranged on the top of the bottom plate, a welding robotic arm is fixedly installed on the top of the bottom plate, a gas injection component is arranged on the top of the welding robotic arm, a cleaning component is arranged on the outside of the gas injection component. The gas injection component includes a top block, a support cylinder is fixedly installed at the bottom of the top block, a laser welding head is fixedly installed inside the top block, the laser welding head is located inside the support cylinder, a rotating gear ring is rotatably connected to the bottom of the support cylinder, a communication box is fixedly installed at the bottom of the rotating gear ring, two trapezoidal side plates are fixedly installed at the bottom of the communication box, two adjusting plates are rotatably connected between the two trapezoidal side plates, the trapezoidal side plates and the adjusting plates form a trapezoidal air nozzle, the support cylinder is internally communicated with the communication box, the cleaning component includes an outer ring, the outer ring is located below the air nozzle, and a connecting frame is fixedly installed between the outer side of the outer ring and the bottom plate.

[0007] Preferably: A connecting rod is fixedly installed on the outside of the top block, the connecting rod is fixedly installed on the top of the bottom plate, a second motor is fixedly installed at the bottom of the connecting rod, and an output end of the second motor is fixedly installed with a second gear, and the second gear meshes with the rotating gear ring.

[0008] Preferably: A connecting rotating shaft is fixedly installed on the top of the adjusting plate, the adjusting plate is rotatably connected between the trapezoidal side plates through the connecting rotating shaft, a first motor is fixedly installed on the front of the trapezoidal side plate, an output end of the first motor movably penetrates inside the trapezoidal side plate and is fixedly connected to the connecting rotating shaft on the top of the left adjusting plate, two first gears are rotatably connected to the back of the back trapezoidal side plate, the two first gears mesh with each other, and the back of the connecting rotating shaft movably penetrates inside the trapezoidal side plate and is fixedly connected to the corresponding first gear.

[0009] Preferably: The cleaning component includes a support block, the support block is fixedly installed on the top of the bottom plate, an exchange box is fixedly installed on the top of the support block, a first communication pipe is fixedly installed between the bottom of the exchange box and the support cylinder, and the first communication pipe communicates the inside of the support cylinder and the exchange box, and an air inlet pipe is fixedly installed on the outer side of the top of the exchange box, and the air inlet pipe communicates with the inside of the exchange box.

[0010] Preferably: A small filter head is fixedly installed on the outside of the outer ring, a spiral copper pipe is fixedly installed inside the exchange box, the bottom inlet and the top outlet of the spiral copper pipe are both located outside the exchange box, a second communication pipe is fixedly installed between the bottom inlet of the spiral copper pipe and the small filter head, the second communication pipe communicates the inside of the small filter head and the inside of the spiral copper pipe, and the inside of the small filter head is communicated with the inside of the outer ring.

[0011] Preferably, an air pump is fixedly installed on the top of the exchange box. A third connecting pipe is fixedly installed between the inlet of the air pump and the outlet at the top of the spiral copper pipe. The third connecting pipe communicates with the inside of the spiral copper pipe and the inlet of the air pump. A collecting pipe is fixedly installed on the top of the outlet of the air pump, and the collecting pipe communicates with the outlet of the air pump.

[0012] Preferably, the fixing assembly includes a vertical plate which is fixedly installed on the top of the bottom plate. A rotating ring is rotatably connected inside the vertical plate. The inner end of the rotating ring is located inside the vertical plate. A three-jaw chuck is fixedly installed at the inner end of the rotating ring, and a boiler pipe is inserted between the three-jaw chuck and the inside of the rotating ring.

[0013] Preferably, a synchronous gear ring is fixedly installed on the outer side of the rotating ring. A double-shaft motor is fixedly installed on the top of the bottom plate. Output ends on both sides of the double-shaft motor are fixedly installed with rotating rods respectively. The two rotating rods respectively pass through the inside of the two vertical plates movably. Synchronous gears are fixedly installed on the outer sides of the rotating rods, and the synchronous gears are meshed with the corresponding synchronous gear rings respectively.

[0014] Beneficial effects The present invention provides a welding device for boiler pipes in building construction. Compared with the prior art, it has the following beneficial effects: 1. For the welding device for boiler pipes in building construction, according to the different thicknesses of boiler pipes, it can automatically adapt to different ranges of plasma and molten pools generated during welding. For thicker pipes, the length of the air nozzle increases, and the range of the blown gas is wider, which can effectively cover a large welding area; for thinner pipes, the length of the air nozzle shortens, avoiding excessive cooling or impact on the thin pipe caused by too large gas flow. This adaptive adjustment function improves the versatility and welding effect of the welding device for different specifications of pipes.

[0015] 2. For the welding device for boiler pipes in building construction, through the shape design of the trapezoidal air nozzle, the gas forms a gradually diffusing air flow at the outlet. The pressure in the central area is relatively high, which can better concentrate on the welding area. At the same time, the two inclined sides on both sides make the gas diffuse to the surrounding, expanding the protection range, effectively preventing the welding area from being exposed to the air, reducing adverse phenomena such as oxidation, and improving the welding quality.

[0016] 3. For the welding device for boiler pipes in building construction, the second motor drives the rotating gear ring, so that the communication box and the trapezoidal air nozzle rotate during gas injection, making the auxiliary gas cover the welding area more evenly, avoiding dead corners in the coverage of the protective gas. At the same time, the spiral and pressurized air flow can more effectively blow impurities such as slag and spatter generated during the welding process away from the welding area. When facing thick pipes with more slag, a good slag removal effect can be achieved without excessively increasing the air pressure, avoiding the normal state of the molten pool being disturbed by the impact of high-pressure gas, and further ensuring the stability of the welding quality.

[0017] 4. The boiler pipe welding device for construction use can gather auxiliary gas by cleaning the outer ring in the assembly below the trapezoidal gas nozzle and surrounding the welding point. When welding thicker pipes, it can effectively prevent the auxiliary gas from taking away too much heat and avoid the welding area from cooling too fast. At the same time, the gap between the outer ring and the pipe facilitates the discharge of the blown-off welding slag, keeping the welding environment clean.

[0018] 5. The boiler pipe welding device for construction use a heat recovery system composed of an air pump, a small filter head, a spiral copper tube, etc., which can absorb part of the gas and heat inside the outer ring and transport them to the spiral copper tube in the exchange box. The heat generated by welding is used to heat the auxiliary gas discharged subsequently, so as to preheat the pipe wall near the welding area, which helps to improve the welding quality. Most of the gas absorbed by the air pump is auxiliary gas, which can be separated again after treatment and stored in the exhaust gas collection box, which reduces the waste of auxiliary gas during continuous welding, improves resource utilization, and reduces welding costs.

[0019] 6 The boiler pipe welding device for construction use, through the structure of three-jaw chuck, rotating ring, synchronous gear ring and synchronous gear, driven by a double-axis motor, can realize the synchronous fixation and rotation of two sections of boiler pipes, facilitate the real-time adjustment of the welding position during the welding process, and ensure that the welding work is carried out continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a three-dimensional diagram of the external structure of the present invention; Figure 2 It is a front structural stereogram of the present invention; Figure 3 It is a three-dimensional diagram of the overall structure of the gas injection assembly and the cleaning assembly of the present invention; Figure 4 It is a three-dimensional diagram of the top part structure of the welding robot arm of the present invention; Figure 5 is a three-dimensional diagram of the internal cross-sectional structure of the gas injection assembly of the present invention; Figure 6 It is a three-dimensional diagram of the overall structure of the welding robot arm of the present invention; Figure 7 The present invention Figure 6 A magnified view of the structure at center; In the figure: 1, bottom plate; 2, fixing component; 21, vertical plate; 22, rotating ring; 23, three-jaw chuck; 24, synchronous gear ring; 25, synchronous gear; 26, rotating rod; 27, dual-axis motor; 3, gas injection component; 31, connecting box; 32, trapezoidal side plate; 33, support cylinder; 34, top block; 35, first motor; 36, connecting rod; 37, adjusting plate; 38, first gear; 39, rotating gear ring; 310, second motor; 311, second gear; 312, first connecting pipe; 313, exchange box; 314, intake pipe; 4, cleaning component; 41, outer ring; 42, connecting frame; 43, second connecting pipe; 44, small filter head; 45, support block; 46, third connecting pipe; 47, air pump; 48, collecting pipe; 49, spiral copper pipe; 5, welding robotic arm; 6, laser welding head. Detailed implementation manners

[0022] It should be noted that in the description of the embodiments of the present application, the orientation or positional relationships indicated by terms such as "front, back", "left, right", "up, down", etc. are all based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. The terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] The present application will be further elaborated in detail below through the drawings and embodiments.

[0024] Refer to Figures 1 to 7, an embodiment of the present application provides a boiler pipeline welding device for building construction, including a bottom plate 1. A fixing component 2 is arranged on the top of the bottom plate 1. A welding robotic arm 5 is fixedly installed on the top of the bottom plate 1. A gas injection component 3 is arranged on the top of the welding robotic arm 5. A cleaning component 4 is arranged on the outside of the gas injection component 3. The gas injection component 3 includes a top block 34. A support cylinder 33 is fixedly installed at the bottom of the top block 34. A laser welding head 6 is fixedly installed inside the top block 34. The laser welding head 6 is located inside the support cylinder 33. The bottom of the support cylinder 33 is rotatably connected to a rotating gear ring 39. A communication box 31 is fixedly installed at the bottom of the rotating gear ring 39. Two trapezoidal side plates 32 are fixedly installed at the bottom of the communication box 31. Two adjusting plates 37 are rotatably connected between the two trapezoidal side plates 32. The trapezoidal side plates 32 and the adjusting plates 37 form a trapezoidal nozzle. The inside of the support cylinder 33 is in communication with the communication box 31. The cleaning component 4 includes an outer ring 41. The outer ring 41 is located below the nozzle. A connecting frame 42 is fixedly installed between the outer side of the outer ring 41 and the bottom plate 1.

[0025] A connecting rod 36 is fixedly installed on the outside of the top block 34. The connecting rod 36 is fixedly installed on the top of the bottom plate 1. A second motor 310 is fixedly installed at the bottom of the connecting rod 36. An output end of the second motor 310 is fixedly installed with a second gear 311. The second gear 311 meshes with the rotating gear ring 39. A connecting rotating shaft is fixedly installed at the top of the adjusting plate 37. The adjusting plate 37 is rotatably connected between the trapezoidal side plates 32 through the connecting rotating shaft. A first motor 35 is fixedly installed on the front of the trapezoidal side plate 32. An output end of the first motor 35 movably penetrates inside the trapezoidal side plate 32 and is fixedly connected to the connecting rotating shaft at the top of the left adjusting plate 37. Two first gears 38 are rotatably connected to the back of the back trapezoidal side plate 32. The two first gears 38 mesh with each other. The back of the connecting rotating shaft movably penetrates inside the trapezoidal side plate 32 and is fixedly connected to the corresponding first gear 38. The cleaning component 4 includes a support block 45. The support block 45 is fixedly installed on the top of the bottom plate 1. An exchange box 313 is fixedly installed on the top of the support block 45. A first communication pipe 312 is fixedly installed between the bottom of the exchange box 313 and the support cylinder 33. The first communication pipe 312 communicates the inside of the support cylinder 33 and the exchange box 313. An air inlet pipe 314 is fixedly installed on the outer side of the top of the exchange box 313. The air inlet pipe 314 is in communication with the inside of the exchange box 313.

[0026] The fixing component 2 includes a vertical plate 21, which is fixedly installed on the top of the bottom plate 1. A rotating ring 22 is rotatably connected inside the vertical plate 21. The inner end of the rotating ring 22 is located inside the vertical plate 21. A three-jaw chuck 23 is fixedly installed at the inner end of the rotating ring 22. A boiler pipe is inserted between the three-jaw chuck 23 and the inside of the rotating ring 22. A synchronous gear ring 24 is fixedly installed on the outside of the rotating ring 22. A dual-shaft motor 27 is fixedly installed on the top of the bottom plate 1. Fixedly installed on both output ends of the dual-shaft motor 27 are rotating rods 26. The two rotating rods 26 respectively pass through the inside of the two vertical plates 21 movably. Fixedly installed on the outer side of the rotating rod 26 is a synchronous gear 25. The synchronous gears 25 are respectively meshed with the corresponding synchronous gear rings 24.

[0027] In this embodiment, when welding two sections of boiler pipes, the two sections of boiler pipes are respectively fixed by the three-jaw chucks 23 on both sides. When fixing, the boiler pipes are passed through the inside of the rotating ring 22 and pass out from the inside of the three-jaw chuck 23, and the welding surfaces of the boiler pipes are mutually attached. After that, the boiler pipes are fixed by the three-jaw chuck 23. After fixing, the dual-shaft motor 27 can be started to drive the two rotating rods 26 to rotate synchronously. The rotating rods 26 drive the synchronous gears 25 to rotate synchronously, thereby driving the synchronous gear rings 24 to rotate synchronously, and further driving the two rotating rings 22 and the three-jaw chucks 23 to rotate synchronously. Furthermore, the two sections of boiler pipes inside can be driven to rotate synchronously. Through the synchronous rotation of the boiler pipes, it is convenient to adjust the welding position in real time during welding, ensuring that continuous welding can be carried out during welding. During welding, the laser welding head 6 is moved to a suitable position outside the welding by the welding robotic arm 5. Before welding, the thickness of the boiler pipe to be welded is measured. After the measurement is completed, the first motor 35 is started to rotate according to the measured thickness. The rotation of the first motor 35 can drive the adjusting plate 37 to swing, and the two adjusting plates 37 are synchronously swung in the opposite direction through the first gears 38 on both sides. By adjusting the angle of the adjusting plate 37, the length of the bottom of the trapezoidal air nozzle can be adjusted. The adjustment is carried out according to the thickness of the boiler pipe. The thicker the thickness, the longer the length of the trapezoidal air nozzle, and vice versa. By changing the length of the trapezoidal air nozzle, the range of the auxiliary gas blown out is adjusted, so as to ensure that different ranges of plasma and molten pool generated during welding for different pipe thicknesses can be adapted. When the auxiliary gas is introduced, the air supply pipe of the auxiliary gas is externally connected through the air inlet pipe 314. The gas enters the inside of the support cylinder 33 through the air inlet pipe 314, the exchange box 313, and the first connecting pipe 312, and is discharged into the inside of the lower connecting box 31, and finally discharged through the trapezoidal air nozzle. And when the auxiliary gas is introduced, the trapezoidal nozzle is arranged. This shape can make the gas form a gradually diffusing air flow at the outlet. The gas pressure in the central area is relatively high, which can better concentrate on the welding area. At the same time, the inclined sides on both sides can also make the gas diffuse to the surrounding to a certain extent, thus expanding the protection range. For thicker pipes, due to more heat generated during welding and a larger molten pool, a wider flat nozzle is required to provide a wider air wall to better cover the welding area and ensure the protection effect. For thinner pipes, the width of the flat nozzle can be appropriately reduced to avoid excessive cooling or impact on the thin pipe caused by too large gas flow; And when the gas is ejected, the second motor 310 is started to drive the second gear 311 and the rotating gear ring 39 to rotate. The rotation of the rotating gear ring 39 drives the communication box 31 and the lower trapezoidal nozzle to rotate. The trapezoidal nozzle rotates while jetting gas, which can make the auxiliary gas cover the welding area more evenly. The rapidly rotating flat nozzle makes the air wall rotate continuously, which can wrap the welding point in all directions, avoiding dead corners where the shielding gas cannot cover, preventing the welding area from being exposed to the air. The rapid rotation makes the gas present a spiral shape. The spiral gas flow with a certain pressure can more effectively blow impurities such as molten slag and spatter generated during the welding process away from the welding area. The combined action of the centrifugal force generated by the rotation and the pressure of the gas flow makes the impurities easier to be carried away. In this way, when facing thick pipes with more molten slag, there is no need to excessively increase the air pressure to achieve the slag removal effect, thus ensuring that the normal state of the molten pool will not be disturbed by the impact of high-pressure gas.

[0028] Refer to Figures 1 to 7 , in one aspect of this embodiment, a small filter head 44 is fixedly installed on the outer side of the outer ring 41. A spiral copper pipe 49 is fixedly installed inside the exchange box 313. The bottom inlet and the top outlet of the spiral copper pipe 49 are both located outside the exchange box 313. A second connecting pipe 43 is fixedly installed between the bottom inlet of the spiral copper pipe 49 and the small filter head 44. The second connecting pipe 43 communicates the inside of the small filter head 44 and the inside of the spiral copper pipe 49. The inner side of the small filter head 44 communicates with the inside of the outer ring 41.

[0029] An air pump 47 is fixedly installed on the top of the exchange box 313. A third connecting pipe 46 is fixedly installed between the inlet of the air pump 47 and the top outlet of the spiral copper pipe 49. The third connecting pipe 46 communicates the spiral copper pipe 49 and the inside of the inlet of the air pump 47. A collecting pipe 48 is fixedly installed on the top of the outlet of the air pump 47. The collecting pipe 48 communicates with the outlet of the air pump 47.

[0030] In this embodiment, during laser welding, the outer ring 41 is located below the trapezoidal gas nozzle and above the welding point. The outer side of the welding point is surrounded by the outer ring 41, and the auxiliary gas ejected downwards will fill the inner part of the outer ring 41, and then the gas is ejected by rotating the trapezoidal gas nozzle. When facing a thicker pipe, the pressure of the auxiliary gas exhaust is relatively small, and the auxiliary gas is gathered by the outer ring 41, so that a stable and high area composed of auxiliary gas can be formed inside the outer ring 41. This area can effectively prevent the auxiliary gas from taking away too much heat during welding, thereby ensuring that the welding area will not cool down too quickly, and the blown welding slag can be discharged from the gap between the outer ring 41 and the pipe; When the auxiliary gas is gathered by the outer ring 41, a part of the gas and heat inside the outer ring 41 can be absorbed by starting the air pump 47 to generate suction, and the absorbed heat enters the spiral copper tube 49 inside the exchange box 313 through the second connecting pipe 43, and the small filter head 44 ensures that the welding slag will not enter the second connecting pipe 43 and brings the heat to the exchange box 313. At this time, the auxiliary gas delivered through the exchange box 313 will be heated, so that the gas subsequently discharged from the trapezoidal gas nozzle is heated to a certain temperature. By recovering the welding heat and heating the auxiliary gas, the pipe wall near the welding area can be preheated during welding, and most of the gas absorbed by the air pump 47 is auxiliary gas. The gas is delivered to the collection pipe 48 through the air pump 47. The collection pipe 48 is connected to the exhaust gas collection box, and the collected gas can be stored. The auxiliary gas can be separated again after treatment, thereby reducing the waste of auxiliary gas during continuous welding.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] Working principle: Pass two sections of boiler pipes through the rotating ring 22 and out of the three-jaw chuck 23. After the welding surfaces are fitted, fix them with the three-jaw chuck 23. Drive the rotating rod 26 by the double-shaft motor 27, and sequentially drive the synchronous gear 25 and the synchronous gear ring 24 to realize the synchronous rotation of the rotating ring 22 and the three-jaw chuck 23 to drive the boiler pipes, facilitating the adjustment of the welding position. Before welding, move the laser welding head 6 in place by the welding robotic arm 5 and measure the pipe thickness. The first motor 35 drives the adjusting plate 37 to adjust the bottom length of the trapezoidal air nozzle according to the measurement result through the first gear 38, changing the blowing range of the auxiliary gas. The auxiliary gas enters the support cylinder 33 and the communication box 31 through the air inlet pipe 314, the exchange box 313, and the first communication pipe 312 and is discharged from the trapezoidal air nozzle. The trapezoidal air nozzle forms a specific air flow to protect the welding area. A long air nozzle corresponds to a thick pipe, and a short air nozzle corresponds to a thin pipe. The second motor 310 drives the communication box 31 and the trapezoidal air nozzle to rotate through the second gear 311 and the rotating gear ring 39, so that the auxiliary gas evenly covers and blows away impurities. During laser welding, the outer ring 41 is located below the trapezoidal air nozzle and above the welding point to gather the auxiliary gas, preventing the heat from dissipating too quickly. The welding slag is discharged from the gap between it and the pipe. At the same time, the air pump 47 absorbs the gas and heat inside the outer ring 41. The heat enters the spiral copper pipe 49 of the exchange box 313 through the second communication pipe 43 to heat the auxiliary gas, realizing the preheating of the pipe wall. The auxiliary gas absorbed by the air pump 47 is stored in the waste gas collection box through the collection pipe 48 for treatment and reuse, reducing the waste of the auxiliary gas.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A boiler pipeline welding device for building construction, comprising a bottom plate (1), characterized in that: A fixing component (2) is arranged on the top of the bottom plate (1). A welding robot arm (5) is fixedly installed on the top of the bottom plate (1). A gas injection component (3) is arranged on the top of the welding robot arm (5). A cleaning component (4) is arranged on the outer side of the gas injection component (3). The gas injection component (3) includes a top block (34). A support cylinder (33) is fixedly installed at the bottom of the top block (34). A laser welding head (6) is fixedly installed inside the top block (34). The laser welding head (6) is located inside the support cylinder (33). A rotating toothed ring (39) is rotatably connected to the bottom of the support cylinder (33). A communication box (31) is fixedly installed at the bottom of the rotating toothed ring (39). Two trapezoidal side plates (32) are fixedly installed at the bottom of the communication box (31). Two adjusting plates (37) are rotatably connected between the two trapezoidal side plates (32). The trapezoidal side plate (32) and the adjusting plate (37) form a trapezoidal air nozzle. The support cylinder (33) is internally communicated with the communication box (31). The cleaning component (4) includes an outer ring (41). The outer ring (41) is located below the air nozzle. A connecting frame (42) is fixedly installed between the outer side of the outer ring (41) and the bottom plate (1).

2. The boiler pipeline welding device for building construction according to claim 1, characterized in that: A connecting rod (36) is fixedly installed on the outer side of the top block (34). The connecting rod (36) is fixedly installed on the top of the bottom plate (1). A second motor (310) is fixedly installed at the bottom of the connecting rod (36). A second gear (311) is fixedly installed at the output end of the second motor (310). The second gear (311) meshes with the rotating toothed ring (39).

3. The boiler pipeline welding device for building construction according to claim 2, characterized in that: A connecting rotating shaft is fixedly installed on the top of the adjusting plate (37). The adjusting plate (37) is rotatably connected between the trapezoidal side plates (32) through the connecting rotating shaft. A first motor (35) is fixedly installed on the front of the trapezoidal side plate (32). The output end of the first motor (35) movably penetrates inside the trapezoidal side plate (32) and is fixedly connected to the connecting rotating shaft on the top of the left adjusting plate (37). Two first gears (38) are rotatably connected to the back of the back trapezoidal side plate (32). The two first gears (38) mesh with each other. The back of the connecting rotating shaft movably penetrates inside the trapezoidal side plate (32) and is fixedly connected to the corresponding first gear (38).

4. A boiler pipeline welding device for building construction according to claim 1, characterized in that: The cleaning component (4) includes a support block (45). The support block (45) is fixedly installed on the top of the bottom plate (1). An exchange box (313) is fixedly installed on the top of the support block (45). A first communication pipe (312) is fixedly installed between the bottom of the exchange box (313) and the support cylinder (33). The first communication pipe (312) communicates the inside of the support cylinder (33) and the exchange box (313). An air inlet pipe (314) is fixedly installed on the outer side of the top of the exchange box (313). The air inlet pipe (314) is communicated with the inside of the exchange box (313).

5. The boiler pipeline welding device for building construction according to claim 4, characterized in that: A small filter head (44) is fixedly installed on the outer side of the external ring (41). A spiral copper tube (49) is fixedly installed inside the exchange box (313). Both the bottom inlet and the top outlet of the spiral copper tube (49) are located outside the exchange box (313). A second connecting pipe (43) is fixedly installed between the bottom inlet of the spiral copper tube (49) and the small filter head (44). The second connecting pipe (43) communicates with the inside of the small filter head (44) and the inside of the spiral copper tube (49). The inner side of the small filter head (44) communicates with the inside of the external ring (41).

6. The boiler pipe welding device for building construction according to claim 5, characterized in that: An air pump (47) is fixedly installed on the top of the exchange box (313). A third connecting pipe (46) is fixedly installed between the inlet of the air pump (47) and the top outlet of the spiral copper tube (49). The third connecting pipe (46) communicates with the inside of the spiral copper tube (49) and the inlet of the air pump (47). A collecting pipe (48) is fixedly installed on the top of the outlet of the air pump (47). The collecting pipe (48) communicates with the outlet of the air pump (47).

7. A boiler pipeline welding device for building construction according to claim 1, characterized in that: The fixing component (2) includes a vertical plate (21). The vertical plate (21) is fixedly installed on the top of the bottom plate (1). A rotating ring (22) is rotatably connected inside the vertical plate (21). The inner end of the rotating ring (22) is located inside the vertical plate (21). A three-jaw chuck (23) is fixedly installed at the inner end of the rotating ring (22). A boiler pipe is inserted between the three-jaw chuck (23) and the inside of the rotating ring (22).

8. The boiler pipeline welding device for building construction according to claim 7, wherein: A synchronous gear ring (24) is fixedly installed on the outer side of the rotating ring (22). A double-shaft motor (27) is fixedly installed on the top of the bottom plate (1). Output ends are fixedly installed on both sides of the double-shaft motor (27). Two rotating rods (26) respectively penetrate through the inside of the vertical plates (21) on both sides. A synchronous gear (25) is fixedly installed on the outer side of the rotating rod (26). The synchronous gears (25) are respectively meshed with the corresponding synchronous gear rings (24).

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