Architectural decoration handrail welding device

Abstract

The invention relates to the technical field of laser welding, and discloses a building decoration handrail welding device which comprises a welding machine, a wire feeder and a welding gun, and a mounting ring structure is connected to the outer side of the welding gun. According to the building decoration handrail welding device, the two mounting frames and the grinding disc are arranged on the outer side of the welding gun, so that the welding gun can grind a welding point before welding, oxide or dust is prevented from being attached to the welding point, air holes are prevented from being formed in the welding point in the later period, and the welding quality is effectively improved; the distance between the polishing disc and the welding gun can be the distance between two welding points, when the welding gun moves for welding, the polishing disc and the next welding point are polished in advance, polishing in advance is not needed, and the welding efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and particularly to a welding device for building decoration railings. Background Art

[0002] A hand-held laser welding machine is a portable device and a high-precision welding tool that uses a laser beam for welding. For example, a heat-resistant laser hand-held welding integrated device disclosed in a patent with a patent publication number of CN118218766A includes a main body box, the main body box has a laser system power supply, a circuit protector is arranged on the left side of the outer surface of the laser system power supply, a compression tank is fixedly connected to the bottom of the laser system power supply, and a protection baffle is slidably connected to the front part of the outer surface of the main body box.

[0003] Although the above device solves the problem of anti-oxidation of welding wires, there are still the following deficiencies: when the welding torch is welding a metal guardrail, oxides, dust and other impurities may be attached to the surface of the guardrail, and these impurities will be reduced and volatilized at high temperatures, resulting in spark splashing during welding, and it is also easy to cause problems such as bubbles at the welded joint position after welding and insufficient firmness of the welded joint. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a welding device for building decoration railings to solve the problems raised in the background art, and facilitate the welding torch to grind the outer wall of the welding point of the railing before welding to prevent oxides, dust and other impurities from affecting the welding quality.

[0005] To achieve the above object, the present invention provides the following technical solution: A welding device for building decoration railings includes a welding machine, a wire feeder and a welding torch. An installation ring structure is connected to the outside of the welding torch. Two symmetrically arranged mounting brackets are connected to the bottom of the installation ring structure. A grinding disc is rotatably connected between the two mounting brackets. The grinding disc is rotatably connected to the mounting bracket through a shaft rod. A driving component is connected to the outside of the shaft rod of the grinding disc. A dust adsorption component is connected between the two mounting brackets. A flue gas adsorption component is connected to the top of the welding torch. A support component is connected to the outside of the installation ring structure.

[0006] Further, the driving component includes a motor. The motor is fixedly installed on the outer wall of one of the mounting brackets. The output shaft of the motor passes through one end of the mounting bracket and is fixedly connected to a main gear. A driven gear is fixedly sleeved on the outside of the shaft rod of the grinding disc. The driven gear is meshed with the main gear. A bottom plate is fixedly connected to the bottom of the installation ring structure. A controller is fixedly connected to the top surface of the bottom plate. A control switch is arranged on the outside of the controller. The controller, the control switch and the motor are electrically connected by wires. The control switch is close to the handle switch of the welding torch. The power supply of the controller is electrically connected to the welding machine through a cable.

[0007] Furthermore, the dust adsorption component includes a negative pressure pump. An air suction pipe is connected to the outer end of the negative pressure pump. Two dust suction covers are connected to the outside of the grinding disc. A fixed pipe is fixedly connected between the two mounting frames. Two connecting pipes connected to the dust suction covers are fixedly connected to the outside of the fixed pipe. The air suction pipe is communicated with the fixed pipe. An elastic member is connected to the dust suction cover.

[0008] Furthermore, the elastic member includes a support plate. The top of the support plate is fixedly connected to the inner walls of the two mounting frames. The ends of the two dust suction covers are fixedly connected with third sliding rods. The third sliding rods penetrate through the support plate and are slidably connected thereto. The two third sliding rods are arranged in a staggered manner. Third springs are sleeved on the outside of the two third sliding rods. One end of each of the two third springs is fixedly connected to the dust suction cover, and the other end abuts against the support plate. The negative pressure pump is fixedly installed on the top of the wire feeder. The power supply of the negative pressure pump is electrically connected to the control module of the wire feeder. A filter box is connected between the air suction pipe and the negative pressure pump. A filter element is detachably connected inside the filter box.

[0009] Furthermore, the flue gas adsorption component includes a gooseneck tube. A flue gas adsorption pipeline communicated with the fixed pipe is arranged inside the gooseneck tube. A flue gas suction cover detachably connected to the gooseneck tube is connected to the end of the flue gas adsorption pipeline. The flue gas suction cover is located outside the welding head of the welding torch. The other end of the gooseneck tube is fixedly connected to the fixed pipe.

[0010] Furthermore, the support component includes a walking plate. Walking wheels are rotatably connected to both sides of the outer wall of the walking plate. A support rod is connected to the top of the walking plate. A transverse rod is rotatably connected to the top of the support rod. A side block is fixedly connected to the outer wall of the mounting ring structure. The end of the transverse rod is clamped with the side block. A dial is fixedly connected to the outer wall of the support rod. An extrusion member is connected to the outside of the walking plate.

[0011] Furthermore, the extrusion member includes a side abutting plate. A second sliding rod is fixedly connected to the side of the side abutting plate close to the walking plate. The second sliding rod is slidably connected to the walking plate. A plurality of groups of rolling balls are rotatably embedded in the side of the side abutting plate away from the second sliding rod. A second spring is sleeved on the outside of the second sliding rod. One end of the second spring is fixedly connected to the outer wall of the side abutting plate, and the other end abuts against the side wall of the walking plate. A lower rod is fixedly connected to the top of the walking plate. A first sliding rod is fixedly connected to the top of the lower rod. The first sliding rod is slidably connected to the support rod. A first spring is sleeved on the outside of the first sliding rod. One end of the first spring is fixedly connected to the lower rod, and the other end abuts against the bottom of the support rod.

[0012] Furthermore, the mounting ring structure includes two U-shaped rings. The two U-shaped rings are respectively sleeved on the outer wall of the welding torch. The two U-shaped rings are fixedly installed on the outside of the welding torch through bolts.

[0013] Further, a rotating member is connected to the bottom of the mounting frame and the mounting ring structure. The rotating member includes a bottom rod. The top of the mounting frame is connected with a top plate. A fourth sliding rod slidingly connected to the mounting frame is fixedly connected to the bottom surface of the top plate. A fourth spring is sleeved on the outer wall of the fourth sliding rod. One end of the fourth spring is fixedly connected to the top plate, and the other end abuts against the top surface of the mounting frame. A fixed shaft is fixedly connected between the two top plates. The bottom rod is sleeved outside the fixed shaft. A limiting groove is formed on the outside of the fixed shaft, and a limiting strip corresponding to the limiting groove is fixedly connected to the shaft groove of the bottom rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: For this building decoration railing welding device, by arranging two mounting frames and grinding discs outside the welding gun, the welding points can be ground before welding, avoiding the attachment of oxides or dust to the welding points, resulting in pores in the welding points in the later stage, and effectively improving the welding quality. By adjusting the mounting frame, the distance between the grinding disc and the welding gun can be made the distance between two welding points, so that when the welding gun moves for welding, the grinding disc pre-grinds the next welding point, eliminating the need for prior grinding and effectively improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the welding gun, grinding disc and dust suction hood of the present invention; Figure 3 is a three-dimensional structural schematic diagram of the mounting frame and grinding disc of the present invention; Figure 4 is a three-dimensional structural schematic diagram of the grinding disc, motor and main gear of the present invention unfolded; Figure 5 is a three-dimensional structural schematic diagram of the walking plate and side support plate of the present invention; Figure 6 is a three-dimensional structural schematic diagram of the side abutting plate and walking plate of the present invention unfolded; Figure 7 is a three-dimensional structural schematic diagram of the dust suction hood and flue gas suction hood of the present invention unfolded; Figure 8 is a three-dimensional structural schematic diagram of the filter box and negative pressure pump of the present invention unfolded; Figure 9 of the present invention Figure 4 is an enlarged three-dimensional structural schematic diagram of part A; Figure 10 is a three-dimensional structural schematic diagram of the side abutting plate and ball of the present invention.

[0016] In the figure: 1, welding machine; 2, wire feeder; 3, welding gun; 4, grinding disc; 5, mounting bracket; 6, mounting ring structure; 7, walking plate; 8, dust suction hood; 9, walking wheel; 10, side abutting plate; 11, support rod; 12, suction pipe; 13, cable; 14, support plate; 15, motor; 16, gooseneck tube; 17, flue gas suction hood; 18, bottom plate; 19, controller; 20, side block; 21, bottom rod; 22, top plate; 23, main gear; 24, driven gear; 25, connecting pipe; 26, fixed pipe; 27, lower rod; 28, cross bar; 29, first slide bar; 30, first spring; 31, second slide bar; 32, second spring; 33, paddle; 34, third slide bar; 35, third spring; 36, filter box; 37, negative pressure pump; 38, fourth slide bar; 39, fourth spring. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] Please refer to Figure 1 - Figure 10 , a welding device for building decoration railings, including a welding machine 1, a wire feeder 2 and a welding gun 3. An installation ring structure 6 is connected to the outside of the welding gun 3. Two symmetrically arranged mounting brackets 5 are connected to the bottom of the installation ring structure 6. A grinding disc 4 is rotatably connected between the two mounting brackets 5. The grinding disc 4 is rotatably connected to the mounting bracket 5 through a shaft rod. A driving component is connected to the outside of the shaft rod of the grinding disc 4. A dust adsorption component is connected between the two mounting brackets 5. A flue gas adsorption component is connected to the top of the welding gun 3. A support component is connected to the outside of the installation ring structure 6.

[0019] In the welding device for building decoration railings of the present invention, when welding the railings, the driving component can be started first to make the driving component work, drive the grinding disc 4 to rotate, and aim the grinding disc 4 at the connection between the horizontal bar and the vertical bar of the railing for grinding, so that the dust after grinding is adsorbed by the dust adsorption component; There is a certain distance between the grinding disc 4 and the welding gun 3 here, and the grinding disc 4 is installed on the mounting bracket 5, and the mounting bracket 5 is rotatably connected to the installation ring structure 6. Therefore, the distance of the grinding disc 4 on the mounting bracket 5 can be adjusted, and this distance can be the distance between two horizontal bars; When the welding gun 3 is performing laser welding work, the grinding disc 4 works simultaneously, and can grind the connection between the horizontal bar and the vertical bar of the next railing to be welded. When the welding gun 3 moves to the next welding point after completing the welding of the previous welding point, it has been pre-ground clean by the grinding disc 4, and at the same time the dust has also been adsorbed clean by the dust adsorption component, so that the welding position is convenient for the welding gun 3 to weld; By arranging two mounting brackets 5 and a grinding disc 4 on the outer side of the welding gun 3, the welding gun 3 can grind the welding point before welding, avoiding the attachment of oxides or dust to the welding point, which may cause pores in the later welding point, effectively improving the welding quality. By adjusting the mounting bracket 5, the distance between the grinding disc 4 and the welding gun 3 can be made equal to the spacing between two welding points, so that when the welding gun 3 moves for welding, the grinding disc 4 can pre-grind the next welding point without prior grinding, effectively improving the welding efficiency.

[0020] As a preferred technical solution of the present invention, the driving assembly includes a motor 15. The motor 15 is fixedly installed on the outer wall of one of the mounting brackets 5. The output shaft of the motor 15 passes through one end of the mounting bracket 5 and is fixedly connected to a main gear 23. A driven gear 24 is fixedly sleeved on the outer side of the shaft rod of the grinding disc 4. The driven gear 24 is meshed with the main gear 23. The bottom of the mounting ring structure 6 is fixedly connected to a bottom plate 18. The top surface of the bottom plate 18 is fixedly connected to a controller 19. A control switch is arranged outside the controller 19. The controller 19, the control switch and the motor 15 are electrically connected by wires. The control switch is close to the handle switch of the welding gun 3. The power supply of the controller 19 is electrically connected to the welding machine 1 through a cable 13.

[0021] Specifically, when the grinding disc 4 needs to rotate for work, the user holds the handle of the welding gun 3 and pinches the switch to start the welding gun 3. At this time, the controller 19 and the control switch are just located on the side of the handle switch of the welding gun 3. Such a setting facilitates the user to hold the welding gun 3 with the hand while the finger part presses the control switch on the controller 19 to turn on the motor 15. After the motor 15 is turned on, its output shaft rotates to drive the main gear 23 to mesh with the driven gear 24, and then drives the shaft rod of the grinding disc 4 connected to the driven gear 24 to rotate, thereby starting the grinding disc 4 to rotate.

[0022] As a preferred technical solution of the present invention, the dust adsorption assembly includes a negative pressure pump 37. The outer end of the negative pressure pump 37 is connected to an air suction pipe 12. Two dust suction covers 8 are connected to the outer side of the grinding disc 4. A fixed pipe 26 is fixedly connected between the two mounting brackets 5. Two communication pipes 25 connected to the dust suction covers 8 are fixedly connected to the outer side of the fixed pipe 26. The air suction pipe 12 is communicated with the fixed pipe 26. An elastic member is connected to the dust suction cover 8.

[0023] Specifically, when the welding gun 3 works, the negative pressure pump 37 can always be started. When the negative pressure pump 37 works, it sucks air through the air suction pipe 12, the fixed pipe 26 and the communication pipes 25 to the two dust suction covers 8, adsorbing the dust after the grinding disc 4 grinds, ensuring that there is no dust at the welding point, improving the welding quality and reducing the situation of spark splashing caused by the contact between the dust and high temperature during laser welding.

[0024] As a preferred technical solution of the present invention, the elastic member includes a support plate 14. The top of the support plate 14 is fixedly connected to the inner walls of two mounting frames 5. The ends of two dust suction hoods 8 are fixedly connected with a third slide bar 34. The third slide bar 34 passes through the support plate 14 and is slidably connected thereto. The two third slide bars 34 are arranged in a staggered manner. A third spring 35 is sleeved on the outer sides of the two third slide bars 34. One end of each of the two third springs 35 is fixedly connected to the dust suction hood 8, and the other end abuts against the support plate 14. The negative pressure pump 37 is fixedly installed on the top of the wire feeder 2. The power supply of the negative pressure pump 37 is electrically connected to the control module of the wire feeder 2. A filter box 36 is connected between the suction pipe 12 and the negative pressure pump 37. A filter element is detachably connected in the filter box 36.

[0025] Specifically, when the dust suction hood 8 is working, in order to make the dust suction hood 8 have good applicability, when the dust suction hood 8 abuts against the railing, the third slide bar 34 at its end will slide on the support plate 14. Since the third slide bar 34 is arranged as an arc-shaped rod, the third slide bar 34 can smoothly contract in the axial direction of the grinding disc 4, so as to ensure that the dust suction hood 8 will not hinder the grinding disc 4 from contacting the welding point to be welded, and improve the applicability of the dust suction hood 8; In order to prevent the dust suction hood 8 from no longer descending after contraction, when the dust suction hood 8 contracts, the third spring 35 will be compressed. After the dust suction hood 8 leaves the blocking object, it will expand under the action of the third spring 35, so as to ensure the good dust adsorption performance of the dust suction hood 8.

[0026] As a preferred technical solution of the present invention, the flue gas adsorption assembly includes a gooseneck tube 16. A flue gas adsorption pipeline communicated with the fixed tube 26 is arranged inside the gooseneck tube 16. The end of the flue gas adsorption pipeline is connected with a flue gas suction hood 17 detachably connected to the gooseneck tube 16. The flue gas suction hood 17 is located outside the welding head of the welding torch 3. The other end of the gooseneck tube 16 is fixedly connected to the fixed tube 26.

[0027] Specifically, when the welding torch 3 is welding, flue gas will be generated. At this time, the gooseneck tube 16 can be rotated to drive the flue gas adsorption tube and the flue gas suction hood 17 to be fixed outside the end of the welding torch 3. Since the gooseneck tube 16 has the properties of flexibility and stability, the flue gas suction hood 17 can stably adsorb the flue gas outside the gun head of the welding torch 3. The adsorbed flue gas enters the fixed tube 26 and the suction pipe 12 through the flue gas adsorption pipeline. The gas adsorbed by the dust suction hood 8 and the flue gas suction hood 17 will both pass through the filter box 36; The filter element in the filter box 36 can be honeycomb activated carbon, activated carbon filter element, etc. of the prior art. Such filter elements are all mature prior art technologies, aiming to filter the dust and harmful gases generated by welding in the suction pipe 12, so no detailed description will be given here; The gas after filtration enters the negative pressure pump 37 to complete the adsorption and filtration of dust and harmful gases.

[0028] As a preferred technical solution of the present invention, the support assembly includes a walking plate 7. Walking wheels 9 are rotatably connected to both sides of the outer wall of the walking plate 7. A support rod 11 is connected to the top of the walking plate 7. A transverse rod 28 is rotatably connected to the top of the support rod 11. A side block 20 is fixedly connected to the outer wall of the mounting ring structure 6. The end of the transverse rod 28 is snap-connected to the side block 20. A paddle 33 is fixedly connected to the outer wall of the support rod 11. An extrusion member is connected to the outside of the walking plate 7.

[0029] Specifically, in order to make the welding gun 3 more labor-saving and convenient to use, when the welding gun 3 welds the welding point of the railing, the support rod 11 can be rotated to make the support rod 11 rotate outside the transverse rod 28. After adjusting the angle, the walking plate 7 can be horizontally placed on the tabletop or the ground. Since the railing is mostly placed on the flat tabletop or the ground during welding, and the walking wheels 9 are provided on both sides of the walking plate 7, when the welding gun 3 moves for welding, the walking wheels 9 move. With this setting, the welding gun 3 can be supported by the support rod 11 during welding, and at the same time, the movement of the welding gun 3 can be ensured.

[0030] As a preferred technical solution of the present invention, the extrusion member includes a side abutting plate 10. A second sliding rod 31 is fixedly connected to the side of the side abutting plate 10 close to the walking plate 7. The second sliding rod 31 is slidably connected to the walking plate 7. A plurality of groups of balls are rotatably embedded on the side of the side abutting plate 10 away from the second sliding rod 31. A second spring 32 is sleeved on the outside of the second sliding rod 31. One end of the second spring 32 is fixedly connected to the outer wall of the side abutting plate 10, and the other end abuts against the side wall of the walking plate 7. A lower rod 27 is fixedly connected to the top of the walking plate 7. A first sliding rod 29 is fixedly connected to the top of the lower rod 27. The first sliding rod 29 is slidably connected to the support rod 11. A first spring 30 is sleeved on the outer wall of the first sliding rod 29. One end of the first spring 30 is fixedly connected to the lower rod 27, and the other end abuts against the bottom of the support rod 11.

[0031] Specifically, when the walking plate 7 is walking, the side abutting plate 10 can be first abutted against the outer wall of the railing. When the welding gun 3 is walking, the mounting ring structure 6 drives the transverse rod 28 to move, driving the support rod 11 and the walking plate 7 to move under the rotation of the walking wheels 9. At the same time, the walking plate 7 drives the second sliding rod 31, driving the side abutting plate 10 to move. At the same time, the setting of the balls can ensure that the side abutting plate 10 can move along with the outer wall of the railing, ensuring that the movement of the welding gun 3 is on the same horizontal plane, which is more labor-saving and convenient; The second sliding rod 31 slides in the walking plate 7. The second spring 32 outside the second sliding rod 31 can always abut the side abutting plate 10 against the outer wall of the railing through the elastic potential energy of the spring; When the welding gun 3 is not used for a short time, under the action of the second spring 32, the side abutting plate 10 will be pushed out and pushed to the other side of the welding gun 3, so that the walking wheels 9 and the side abutting plate 10 form a supporting structure, which can support the welding gun 3, avoid the welding gun 3 being directly placed on the ground, and at the same time facilitate the taking when used next time; The end of the transverse rod 28 is clamped with the side block 20 through a clamping block. This setting can facilitate the disassembly of the support assembly, facilitate its installation and the flexible use of the welding gun 3.

[0032] As a preferred technical solution of the present invention, the mounting ring structure 6 includes two U-shaped rings, the two U-shaped rings are respectively sleeved on the outer wall of the welding gun 3, and the outer sides of the two U-shaped rings are fixedly installed on the outside of the welding gun 3 through bolts.

[0033] Specifically, when connecting the mounting ring structure 6 and the welding gun 3, the bolts on both sides can be rotated to separate them from the lower U-shaped ring, and then the two U-shaped rings can be separated, which is convenient for disassembling and installing the grinding disc 4 and the mounting bracket 5. This setting facilitates the flexible use of the welding gun 3.

[0034] As a preferred technical solution of the present invention, a rotating member is connected to the bottom of the mounting bracket 5 and the mounting ring structure 6. The rotating member includes a bottom rod 21. The top of the mounting bracket 5 is connected with a top plate 22. The bottom surface of the top plate 22 is fixedly connected with a fourth sliding rod 38 slidably connected to the mounting bracket 5. A fourth spring 39 is sleeved on the outer wall of the fourth sliding rod 38. One end of the fourth spring 39 is fixedly connected with the top plate 22, and the other end abuts against the top surface of the mounting bracket 5. A fixed shaft is fixedly connected between the two top plates 22. The bottom rod 21 is sleeved outside the fixed shaft. A limiting groove is opened on the outside of the fixed shaft, and a limiting strip corresponding to the limiting groove is fixedly connected in the shaft groove of the bottom rod 21.

[0035] Specifically, in order to make the degree of freedom of the mounting bracket 5 during rotation easier to adjust, when the mounting bracket 5 rotates, it drives the fixed shaft between the fourth sliding rod 38 and the two top plates 22 to rotate, so that the limiting strip in the bottom rod 21 is misaligned and clamped with the limiting groove on the outside of the fixed shaft, so that the mounting bracket 5 can be rotated and adjusted. When the distance between the grinding disc 4 and the gun head of the welding gun 3 needs to be adjusted, rotating the mounting bracket 5 can also meet the rotation of the grinding disc 4; The fourth sliding rod 38 connected to the top plate 22 slides on the top of the mounting bracket 5. Under the action of the fourth spring 39, when the grinding disc 4 contacts the point to be welded, it can have a certain extrusion force to ensure the grinding effect.

[0036] In the above structure, the motor 15, the negative pressure pump 37, the controller 19, and the control switch are all existing mature technologies, so no detailed description will be given here.

[0037] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A building decoration railing welding device, comprising a welding machine (1), a wire feeder (2) and a welding gun (3), characterized in that: The outer side of the welding gun (3) is connected to a mounting ring structure (6); the bottom of the mounting ring structure (6) is connected to two symmetrically arranged mounting frames (5); a grinding disc (4) is rotatably connected between the two mounting frames (5); the grinding disc (4) is rotatably connected to the mounting frame (5) via a shaft; a driving assembly is connected to the outer side of the shaft of the grinding disc (4); a dust adsorption assembly is connected between the two mounting frames (5); the top of the welding gun (3) is connected to a fume adsorption assembly; and the outer side of the mounting ring structure (6) is connected to a support assembly.

2. A building decoration railing welding device according to claim 1, characterized in that: The drive assembly comprises a motor (15), wherein the motor (15) is fixedly mounted on the outer wall of one of the mounting frames (5); an output shaft of the motor (15) passes through the mounting frame (5) and is fixedly connected to a main gear (23) at one end; a slave gear (24) is fixedly sleeved on the outer side of the shaft of the grinding disc (4); the slave gear (24) is meshingly connected to the main gear (23); a bottom plate (18) is fixedly connected to the bottom of the mounting ring structure (6); a controller (19) is fixedly connected to the top surface of the bottom plate (18); a control switch is provided on the outer side of the controller (19); the controller (19), the control switch and the motor (15) are electrically connected via wires; the control switch is close to a handle switch side of the welding gun (3); and a power supply of the controller (19) is electrically connected to the welding machine (1) via a cable (13).

3. A building decoration railing welding device according to claim 1, characterized in that: The dust adsorption component comprises a negative pressure pump (37), the outer end of the negative pressure pump (37) is connected to an air suction pipe (12), the outer side of the grinding disc (4) is connected to two dust suction hoods (8), a fixed pipe (26) is fixedly connected between the two mounting frames (5), the outer side of the fixed pipe (26) is fixedly connected to two connecting pipes (25) connected to the dust suction hoods (8), the air suction pipe (12) is connected to the fixed pipe (26), and the dust suction hood (8) is connected to an elastic member.

4. A building decoration railing welding device according to claim 3, characterized in that: The elastic member comprises a support plate (14), the top of the support plate (14) is fixedly connected to the inner walls of the two mounting frames (5), the ends of the two dust suction hoods (8) are fixedly connected to third slide bars (34), the third slide bars (34) penetrate the support plate (14) and are slidably connected thereto, the two third slide bars (34) are staggered, the outer sides of the two third slide bars (34) are sleeved with third springs (35), one end of the two third springs (35) is fixedly connected to the dust suction hood (8), and the other end is against the support plate (14), the negative pressure pump (37) is fixedly installed on the top of the wire feeder (2), the power supply of the negative pressure pump (37) is electrically connected to the control module of the wire feeder (2), a filter box (36) is connected between the suction pipe (12) and the negative pressure pump (37), and a filter element is detachably connected to the filter box (36).

5. A building decoration railing welding device according to claim 3, characterized in that: The fume adsorption assembly comprises a gooseneck tube (16), a fume adsorption pipe communicating with a fixed pipe (26) is provided inside the gooseneck tube (16), an end of the fume adsorption pipe is connected to a fume suction hood (17) detachably connected to the gooseneck tube (16), the fume suction hood (17) is located outside the welding head of the welding gun (3), and the other end of the gooseneck tube (16) is fixedly connected to the fixed pipe (26).

6. A building decoration railing welding device according to claim 1, characterized in that: The support assembly comprises a walking board (7), the outer walls of which are rotatably connected to walking wheels (9), the top of the walking board (7) is connected to a support rod (11), the top of the support rod (11) is rotatably connected to a transverse rod (28), the outer wall of the mounting ring structure (6) is fixedly connected to a side block (20), the end of the transverse rod (28) is clamped with the side block (20), the outer wall of the support rod (11) is fixedly connected to a paddle (33), and the outer side of the walking board (7) is connected to an extrusion piece.

7. A building decoration railing welding device according to claim 6, characterized in that: The extrusion component comprises a side abutment plate (10), wherein a second slide bar (31) is fixedly connected to a side of the side abutment plate (10) close to the walking plate (7), the second slide bar (31) is slidably connected to the walking plate (7), and a plurality of groups of balls are rotatably embedded in a side of the side abutment plate (10) away from the second slide bar (31), a second spring (32) is sleeved on the outer side of the second slide bar (31), one end of the second spring (32) is fixedly connected to the outer wall of the side abutment plate (10), and the other end abuts against the side wall of the walking plate (7), a lower rod (27) is fixedly connected to the top of the walking plate (7), a first slide bar (29) is fixedly connected to the top of the lower rod (27), the first slide bar (29) is slidably connected to the support rod (11), and a first spring (30) is sleeved on the outer wall of the first slide bar (29), one end of the first spring (30) is fixedly connected to the lower rod (27), and the other end abuts against the bottom of the support rod (11).

8. A building decoration railing welding device according to claim 1, characterized in that: The mounting ring structure (6) comprises two U-shaped rings, the two U-shaped rings are respectively sleeved on the outer wall of the welding gun (3), and the outer sides of the two U-shaped rings are fixedly mounted on the outer side of the welding gun (3) by bolts.

9. A building decoration railing welding device according to claim 1, characterized in that: The mounting frame (5) and the bottom of the mounting ring structure (6) are connected with a rotating member, the rotating member comprising a bottom rod (21), the top of the mounting frame (5) is connected with a top plate (22), the bottom surface of the top plate (22) is fixedly connected with a fourth sliding rod (38) slidably connected with the mounting frame (5), the outer wall of the fourth sliding rod (38) is sleeved with a fourth spring (39), one end of the fourth spring (39) is fixedly connected with the top plate (22), and the other end is against the top surface of the mounting frame (5), a fixed shaft is fixedly connected between the two top plates (22), the bottom rod (21) is sleeved on the outside of the fixed shaft, a limiting groove is provided on the outside of the fixed shaft, and a limiting strip corresponding to the limiting groove is fixedly connected in the shaft groove of the bottom rod (21).

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