An automatic welding robot for steel structures

Abstract

The present invention relates to the field of welding technology, and discloses an automatic welding robot for steel structures, comprising a frame, a movable welding gun being provided on the frame, a wire feeding mechanism being further provided on the frame, the wire feeding mechanism comprising a processing box, a welding wire cleaning mechanism being provided inside the processing box, the welding wire cleaning mechanism comprising a fixed first support plate, the first support plate being fixedly connected to the processing box, and a water supply pipe and a brush cylinder being provided on the upper side of the first support plate, one end of the brush cylinder being rotatably connected to the first support plate. The present invention provides a welding wire cleaning mechanism with a brush cylinder and a water supply pipe, and adopts a brushing method to clean the welding wire, thereby greatly improving the cleaning effect. By providing a nozzle fixing seat with a nozzle, the welding wire is dried by blowing hot air, and combined with the water-absorbing cotton ring on the water-absorbing component, a better welding wire drying effect can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, in particular to an automatic welding robot for steel structural parts. Background Art

[0002] Automatic welding robots need to be used in conjunction with wire feeders. The function of wire feeders is to feed the welding wire to the arc zone according to the welding process. Conventional wire feeders are mainly composed of wire feeding motors, wire feeding hoses, wire feeding rollers, wire reels and reel stands. The most common fault of wire feeders is poor wire feeding. Common causes of this fault are: 1. The components of the wire feeder are worn due to long-term use, which leads to reduced friction; 2. The wire feeding tube is clogged, and oil, impurities or welding slag on the surface of the welding wire accumulate in the wire feeding tube, forming a blockage, which hinders the normal feeding of the welding wire; 3. The wire feeding pressure is too low, and the wire feeding wheel cannot firmly clamp the welding wire; excessive pressure may cause the welding wire to deform, which will lead to poor wire feeding; 4. Wire quality problems: uneven wire diameter, surface rust or excessive oil will affect the friction between the wire feeding wheel and the welding wire, reducing wire feeding efficiency. By cleaning the welding wire, the risk of poor wire feeding can be greatly reduced. The existing welding wire cleaning mechanism mainly cleans the welding wire by dry wiping with a brush plate, and the cleaning effect is relatively limited. Summary of the Invention

[0003] The present invention provides an automatic welding robot for steel structures, which has the beneficial effect of better cleaning effect and solves the problem mentioned in the above background technology that the existing welding wire cleaning mechanism mainly cleans the welding wire by dry wiping with a brush plate, and the cleaning effect is relatively limited.

[0004] The present invention provides the following technical solution: an automatic welding robot for steel structures, comprising a frame, a movable welding gun provided on the frame, a wire feeding mechanism provided on the frame, the wire feeding mechanism including a processing box, a welding wire cleaning mechanism provided inside the processing box, the welding wire cleaning mechanism including a fixed first support plate, the first support plate being fixedly connected to the processing box, a water supply pipe and a brush cylinder provided on the upper side of the first support plate, one end of the brush cylinder being rotatably connected to the first support plate, and a first motor provided on the first support plate for driving the brush cylinder to rotate;

[0005] A water absorption component is provided on the lower side of the first support plate, and the water absorption component includes a movable plate, a water-absorbing cotton ring is provided on the movable plate, and the movable plate is elastically connected to the first support plate through a first spring, a through hole is provided in the middle of the first support plate, and a sealing component for sealing the through hole is provided on the first support plate.

[0006] As an optional solution of the automatic welding robot for steel structures described in the present invention, a drying component is provided on the lower side of the processing box, and the drying component includes a second support plate, the second support plate is fixedly connected to the processing box, a nozzle fixing seat is provided in the middle of the second support plate, the nozzle fixing seat is rotatably connected to the second support plate, and a plurality of nozzles are provided on the nozzle fixing seat.

[0007] As an optional solution of the automatic welding robot for steel structures described in the present invention, a sealing cover is provided at the lower end of the second support plate, and an extrusion plate is provided inside the sealing cover, a plurality of extrusion grooves are provided on the extrusion plate, and an air inlet is provided on one side of the sealing cover.

[0008] As an optional solution of the automatic welding robot for steel structures described in the present invention, a water-absorbing cotton sleeve is provided on the lower side of the nozzle fixing seat, and a supporting frame is provided inside the water-absorbing cotton sleeve, a plurality of ribs are provided on the outer side of the water-absorbing cotton sleeve, a transmission seat is provided at one end of the supporting frame, the transmission seat is rotatably connected to the sealing cover, and a second motor for driving the transmission seat to rotate is provided on the sealing cover.

[0009] As an optional solution of the automatic welding robot for steel structures described in the present invention, a transmission rod is provided on the nozzle fixing seat, and a plurality of first protrusions are provided at the lower end of the movable plate. The first protrusions are arranged in a ring shape and equidistantly on the movable plate, and an inclined surface is provided on the first protrusion.

[0010] As an optional solution for the automatic welding robot for steel structures described in the present invention, the sealing assembly includes a sealing plate symmetrically arranged in the first support plate, the sealing plate is elastically connected to the first support plate through a second spring, one end of the sealing plate is provided with a semicircular groove, and the other end of the sealing plate is provided with a slope, and the extrusion plate is symmetrically provided with a head.

[0011] As an optional solution of the automatic welding robot for steel structures described in the present invention, the sealing assembly includes an inflatable sealing ring and an inflatable cylinder, the inflatable sealing ring is located in the through hole, the inflatable cylinder is located on the side of the first support plate close to the movable plate, a piston is provided in the inflatable cylinder, the piston is elastically connected to the inflatable cylinder through a third spring, and a piston rod is provided on the piston, and the inflatable cylinder is connected to the inflatable sealing ring through a pipe.

[0012] As an optional solution of the automatic welding robot for steel structures described in the present invention, the upper end of the processing box is provided with a wire reel fixing seat, the wire reel fixing seat is L-shaped, and one end of the wire reel fixing seat is fixedly connected to the processing box, the wire reel fixing seat is provided with a rotating shaft, and one end of the rotating shaft is provided with a locking nut.

[0013] As an optional solution of the automatic welding robot for steel structures described in the present invention, the processing box is provided with a servo motor for driving the wire feeding wheel to rotate, and a wheel frame for installing the tensioning wheel is provided on one side of the servo motor, an adjusting rod is provided at one end of the wheel frame, and the wheel frame and the adjusting rod are elastically connected by a rebound spring, the adjusting rod is slidably connected to the processing box, and the processing box is provided with a fastening bolt for limiting the adjusting rod.

[0014] As an optional solution of the automatic welding robot for steel structures described in the present invention, wherein: a movable platform is provided on the frame, and a second electric push rod is provided on the movable platform, a mounting seat is provided on the push rod of the second electric push rod, and the mounting seat is detachably connected to the welding gun by screws;

[0015] The frame is provided with a linear rack, the movable platform is slidably connected to the frame via a guide rail, and a driving motor is provided on the upper side of the movable platform. The motor shaft of the driving motor is provided with a gear meshing with the linear rack.

[0016] The present invention has the following beneficial effects:

[0017] 1. This automatic welding robot for steel structures is equipped with a welding wire cleaning mechanism with a brush barrel and a water supply pipe, and adopts a brushing method to clean the welding wire, which greatly improves the cleaning effect. By providing a nozzle fixing seat with a nozzle, the welding wire is dried by blowing hot air, and combined with the water-absorbing cotton ring on the water-absorbing component, a better welding wire drying effect can be achieved. When working, the nozzle fixing seat cooperates with the movable plate with the first protrusion through the transmission rod, which can prompt the movable plate to move up and down, thereby squeezing the water-absorbing cotton ring to discharge sewage, further improving the water absorption effect of the water-absorbing cotton ring.

[0018] 2. This kind of automatic welding robot for steel structures is equipped with a first support plate with a sealing component, which includes a sealing plate. The sealing plate is elastically arranged in the first support plate. Correspondingly, a plug is arranged on the movable plate for use therewith. When the movable plate moves upward to extrude the absorbent cotton ring, it can drive the plug to move synchronously. The plug will collide with the end of the sealing plate with an inclined surface. Under the push of the plug, the two sealing plates are closed. A semicircular groove that fits the welding wire is provided at one end of the sealing plate. In this way, the through hole can be sealed by the sealing plate, which can effectively prevent the sewage from overflowing through the through hole in large quantities when the movable plate is squeezed, thereby effectively improving the extrusion effect.

[0019] 3. This kind of automatic welding robot for steel structures is equipped with a water-absorbing cotton sleeve. Correspondingly, an extrusion plate used in conjunction with the sleeve is also provided in the sealing cover. The extrusion plate is provided with an extrusion groove, and the water-absorbing cotton sleeve is provided with a convex rib. The water-absorbing cotton sleeve rotates synchronously with the nozzle fixing seat. During the rotation of the water-absorbing cotton sleeve, the convex rib will indirectly enter the extrusion groove. The extrusion plate can squeeze the convex rib, thereby squeezing out the moisture at the convex rib. At the same time, since the water-absorbing cotton sleeve is located in the sealing cover, the hot air flow can also heat the water-absorbing cotton sleeve during the process of entering the sealing cover, further improving the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the present invention.

[0022] Figure 3 It is a schematic diagram of the processing box structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the internal structure of the processing box of the present invention.

[0024] Figure 5 This is a schematic structural diagram of the relative positions of the water absorbing component, drying component, and water absorbing cotton sleeve of the present invention.

[0025] Figure 6 It is a schematic diagram of the internal structure of the water-absorbing cotton sleeve of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the wire feeding wheel and tensioning wheel of the present invention.

[0027] Figure 8 Schematic diagram of the internal structure of the first support plate of the present invention.

[0028] Figure 9 This is a schematic diagram of the sealing assembly structure in Example 3 of the present invention.

[0029] Figure: 1, frame; 2, welding gun; 3, processing box; 4, first support plate; 401, through hole; 5, water supply pipe; 6, brush cylinder; 7, first motor; 8, movable plate; 801, first protrusion; 9, water-absorbing cotton ring; 10, first spring; 11, second support plate; 12, nozzle fixing seat; 13, nozzle; 14, sealing cover; 15, extrusion plate; 16, extrusion groove; 17, water-absorbing cotton sleeve; 1701, rib; 18, support frame; 19, transmission seat; 20, second motor; 21, transmission rod; 22, sealing plate; 2201, semi- Circular groove; 23. Second spring; 24. Head; 25. Inflatable sealing ring; 26. Inflating cylinder; 27. Piston; 28. Piston rod; 29. Wire reel fixing seat; 30. Rotating shaft; 31. Locking nut; 32. Wire feed wheel; 33. Tensioning wheel; 34. Wheel frame; 35. Adjusting rod; 36. Rebound spring; 37. First electric push rod; 38. Moving platform; 39. Second electric push rod; 40. Mounting seat; 41. Linear rack; 42. Drive motor; 43. Gear; 44. Servo motor; 45. Third spring; 46. Air inlet. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] For example 1, please refer to Figures 1 to 9 , an automatic welding robot for steel structures, including a frame 1, a movable welding gun 2 is provided on the frame 1, a wire feeding mechanism is also provided on the frame 1, the wire feeding mechanism includes a processing box 3, a welding wire cleaning mechanism is provided inside the processing box 3, the welding wire cleaning mechanism includes a fixed first support plate 4, the first support plate 4 is fixedly connected to the processing box 3, and a water supply pipe 5 and a brush cylinder 6 are provided on the upper side of the first support plate 4, one end of the brush cylinder 6 is rotatably connected to the first support plate 4, and a first motor 7 for driving the brush cylinder 6 to rotate is provided on the first support plate 4;

[0032] A water absorption assembly is provided on the lower side of the first support plate 4, and the water absorption assembly includes a movable plate 8, a water absorption cotton ring 9 is provided on the movable plate 8, and the movable plate 8 is elastically connected to the first support plate 4 through a first spring 10. A through hole 401 is provided in the middle of the first support plate 4, and a sealing assembly for sealing the through hole 401 is provided on the first support plate 4. A wire feeding wheel 32 and a tensioning wheel 33 are provided at the lower end of the processing box 3;

[0033] A transmission rod 21 is provided on the nozzle fixing seat 12 , and a plurality of first protrusions 801 are provided on the lower end of the movable plate 8 . The first protrusions 801 are arranged on the movable plate 8 in an annular shape and are equidistantly spaced. The first protrusions 801 are provided with inclined surfaces.

[0034] The welding wire is cleaned by a welding wire cleaning mechanism. A brush barrel 6 is provided on the first support plate 4. The brush barrel 6 is cylindrical and has a trumpet-shaped opening at the top of the brush barrel 6. When in use, the welding wire is passed through the brush barrel 6. The brush barrel 6 rotates under the drive of the first motor 7. In this way, the rotating brush barrel 6 can clean the passed welding wire. During the cleaning process, the water supply pipe 5 can guide the detergent or water to the top of the brush barrel 6, which can achieve a better cleaning effect in combination with the brush barrel 6.

[0035] The sewage generated by cleaning can be cleaned by the water absorption component, which includes a movable plate 8, which is elastically connected to the first support plate 4, and a water-absorbing cotton ring 9 is provided between the movable plate 8 and the first support plate 4. Correspondingly, a transmission rod 21 is provided on the nozzle fixing seat 12, and a plurality of first protrusions 801 are provided on the movable plate 8. The hot air flow can be blown to the welding wire through the nozzle 13 on the nozzle fixing seat 12, thereby achieving an effect of drying the welding wire. During operation, the nozzle fixing seat 12 can be rotated. As the nozzle fixing seat 12 rotates, the hot air flow is blown to the welding wire. When rotating, the transmission rod 21 on the nozzle fixing seat 12 will indirectly interfere with the inclined surface on the first protrusion 801. Driven by the transmission rod 21, the first protrusion 801 and the movable plate 8 will continuously move up and down. A groove for collecting sewage is provided on the movable plate 8. At the same time, a drainage pipe is provided on one side of the movable plate 8. The sewage can be discharged from the treatment box 3 through the drainage pipe. The movable plate 8 will squeeze the water-absorbing cotton ring 9 during the upward movement, thereby removing the sewage adsorbed by the water-absorbing cotton ring 9, effectively improving the water removal effect of the water-absorbing cotton ring 9.

[0036] Example 2: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 9 A drying component is provided on the lower side of the processing box 3, and the drying component includes a second support plate 11, the second support plate 11 is fixedly connected to the processing box 3, a nozzle fixing seat 12 is provided in the middle of the second support plate 11, the nozzle fixing seat 12 is rotatably connected to the second support plate 11, and a plurality of nozzles 13 are provided on the nozzle fixing seat 12.

[0037] A sealing cover 14 is provided at the lower end of the second support plate 11 , and an extrusion plate 15 is provided in the sealing cover 14 . The extrusion plate 15 is provided with a plurality of extrusion grooves 16 . One end of the extrusion groove 16 is provided with a trumpet-shaped opening. An air inlet 46 is provided on one side of the sealing cover 14 .

[0038] A water-absorbing cotton sleeve 17 is provided on the lower side of the nozzle fixing seat 12, and a support frame 18 is provided inside the water-absorbing cotton sleeve 17. A plurality of ribs 1701 are provided on the outer side of the water-absorbing cotton sleeve 17. A transmission seat 19 is provided at one end of the support frame 18. The transmission seat 19 is rotatably connected to the sealing cover 14. A second motor 20 is provided on the sealing cover 14 for driving the transmission seat 19 to rotate.

[0039] The sealing assembly includes a sealing plate 22 symmetrically arranged in the first support plate 4. The sealing plate 22 is elastically connected to the first support plate 4 through a second spring 23. A semicircular groove 2201 is provided at one end of the sealing plate 22, and a slope is provided at the other end of the sealing plate 22. A top 24 is symmetrically provided on the movable plate 8.

[0040] Although brushing can achieve a good cleaning effect for cleaning the welding wire, it will cause liquid residue on the welding wire, and the welding wire needs to be dried. The present technical solution provides a drying component, which includes a second support plate 11, and a rotatable nozzle fixing seat 12 is provided on the second support plate 11. Correspondingly, a sealing cover 14 is provided at the lower end of the second support plate 11, and an air inlet 46 is provided on one side of the sealing cover 14. When in use, hot air flows into the sealing cover 14 through the air inlet 46, and then is sprayed out through the nozzle 13 on the nozzle fixing seat 12, so that the welding wire can be efficiently dried.

[0041] In order to further improve the drying effect, the present technical solution also provides a water-absorbing cotton sleeve 17 on the lower side of the nozzle fixing seat 12, and the water-absorbing cotton sleeve 17 can be used to further wipe the welding wire. A number of convex ribs 1701 are provided on the outer side of the water-absorbing cotton sleeve 17. Correspondingly, an extrusion plate 15 is symmetrically provided in the sealing cover 14, and an extrusion groove 16 is provided on the extrusion plate 15. During the rotation of the water-absorbing cotton sleeve 17, the convex rib 1701 will indirectly enter the extrusion groove 16. The head of the extrusion groove 16 is provided with a trumpet-shaped opening to facilitate the entry of the convex rib 1701, and the width of the tail is smaller than the convex rib 1701. Therefore, as the water-absorbing cotton sleeve 17 rotates, the extrusion plate 15 can have an effect of squeezing the convex rib 1701, thereby squeezing out the moisture at the convex rib 1701. At the same time, since the water-absorbing cotton sleeve 17 is located in the sealing cover 14, the hot air flow can also heat the water-absorbing cotton sleeve 17 during the process of entering the sealing cover 14, further improving the drying effect.

[0042] A transmission seat 19 is provided at the lower end of the absorbent cotton sleeve 17, and a transmission gear is provided on the outside of the transmission seat 19. The second motor 20 is connected to the transmission seat 19 through gear transmission. One end of the transmission seat 19 is fixedly connected to the support frame 18 in the absorbent cotton sleeve 17. The second motor 20 can drive the transmission seat 19 to rotate, thereby driving the support frame 18, the absorbent cotton sleeve 17, the nozzle fixing seat 12 and the nozzle 13 to rotate.

[0043] During the rotation of the nozzle fixing seat 12, the transmission rod 21 can cause the movable plate 8 to move, and the movable plate 8 can squeeze the water-absorbing cotton ring 9, and the squeezed water is led away through the drainage tube. However, since a through hole 401 for the welding wire to enter and exit is provided on the first support plate 4, part of the water may flow through the through hole 401 to the upper side of the first support plate 4 during the squeezing of the water-absorbing cotton ring 9 by the movable plate 8, which has an adverse effect on the squeezing and drainage of the movable plate 8. In order to solve the above problem, the present technical solution provides a sealing component for sealing the through hole 401 at the first support plate 4, which includes a sealing plate 22, and the sealing plate 22 is connected to the first support plate 4. The support plate 4 is elastically connected, and a semicircular groove 2201 that fits the welding wire is provided at one end of the sealing plate 22. Correspondingly, a top head 24 is provided on the movable plate 8. The position and number of the top heads 24 correspond one-to-one with the sealing plate 22. When the movable plate 8 moves upward, the movable plate 8 will drive the top head 24 to move. One end of the top head 24 passes through the first support plate 4 and collides with the end of the sealing plate 22 with the inclined surface. Under the push of the top head 24, the sealing plate 22 overcomes the resistance of the second spring 23 and moves until the two sealing plates 22 are combined together. The sealing plate 22 can achieve a sealing effect on the through hole 401, thereby reducing the amount of sewage passing through.

[0044] It should be noted that: at the rated wire feeding speed, the welding wire can be dried by the water absorption component and the drying component, but mechanical equipment will inevitably malfunction. When the welding wire feeding speed is too fast, the water absorption component and the drying component will bear a greater drying pressure. In order to ensure that the present technical solution can also complete the drying of the welding wire under extreme conditions, the present technical solution is provided with a water-absorbing cotton sleeve 17 and an extrusion plate 15 used in conjunction therewith on the lower side of the second support plate 11. Since the hot air flow will also pass through the sealing cover 14, the water-absorbing cotton sleeve 17 in the sealing cover 14 is dried. This can greatly improve the ability of the present technical solution to cope with extreme situations.

[0045] Example 3: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 9 The sealing assembly includes an inflatable sealing ring 25 and an inflatable cylinder 26. The inflatable sealing ring 25 is located in the through hole 401. The inflatable cylinder 26 is located on the side of the first support plate 4 close to the movable plate 8. A piston 27 is provided in the inflatable cylinder 26. The piston 27 is elastically connected to the inflatable cylinder 26 through a third spring 45, and a piston rod 28 is provided on the piston 27. The inflatable cylinder 26 is connected to the inflatable sealing ring 25 through a pipeline.

[0046] The present technical solution also discloses another sealing component structure, which includes an inflatable sealing ring 25 and an inflatable cylinder 26. The inflatable sealing ring 25 is located in the through hole 401, and the inflatable cylinder 26 is connected to the inflatable sealing ring 25 through a pipeline. A piston 27 is provided in the inflatable cylinder 26, and a piston rod 28 is provided on the piston 27. The inflatable cylinder 26 is fixed on the first support plate 4. When the movable plate 8 moves upward, it will conflict with the piston rod 28. Under the push of the movable plate 8, the piston rod 28 moves, and the gas in the inflatable cylinder 26 is pushed into the inflatable sealing ring 25. The inflatable sealing ring 25 is inflated and expanded, thereby achieving the effect of sealing the through hole 401. In actual use, the welding wire needs to pass through the inflatable sealing ring 25.

[0047] Example 4: This example is an explanation based on Example 1. For details, please refer to Figures 1 to 9 A wire reel fixing seat 29 is provided at the upper end of the processing box 3. The wire reel fixing seat 29 is L-shaped, and one end of the wire reel fixing seat 29 is fixedly connected to the processing box 3. A rotating shaft 30 is provided on the wire reel fixing seat 29, and a locking nut 31 is provided at one end of the rotating shaft 30.

[0048] A servo motor 44 for driving the wire feeding wheel 32 to rotate is provided on the processing box 3, and a wheel frame 34 for installing the tensioning wheel 33 is provided on one side of the servo motor 44. An adjusting rod 35 is provided at one end of the wheel frame 34, and the wheel frame 34 and the adjusting rod 35 are elastically connected by a rebound spring 36. The adjusting rod 35 is slidably connected to the processing box 3, and a first electric push rod 37 for adjusting the position of the adjusting rod 35 is provided on the processing box 3.

[0049] A movable platform 38 is provided on the frame 1, and a second electric push rod 39 is provided on the movable platform 38. A mounting base 40 is provided on the push rod of the second electric push rod 39. The mounting base 40 is detachably connected to the welding gun 2 by screws.

[0050] A linear rack 41 is provided on the frame 1 , the movable platform 38 is slidably connected to the frame 1 via a guide rail, and a driving motor 42 is provided on the upper side of the movable platform 38 , and a gear 43 meshing with the linear rack 41 is provided on the motor shaft of the driving motor 42 .

[0051] Driven by the drive motor 42, the moving platform 38 moves along the linear rack 41. A second electric push rod 39 is provided on the moving platform 38. The second electric push rod 39 can push the mounting seat 40 and the welding gun 2 to move up and down. A wire feeding hose is provided between the mounting seat 40 and the processing box 3. The wire feeding wheel 32 can be driven to rotate by the servo motor 44. The tensioning wheel 33 is located on one side of the wire feeding wheel 32. The welding wire can be pressed against the wire feeding wheel 32 through the tensioning wheel 33. The position of the adjusting rod 35 can be adjusted by the first electric push rod 37 to achieve the purpose of adjusting the tensioning force. The welding wire can be installed through the wire reel fixing seat 29. The welding wire is first fixed on the I-shaped disc, and then the I-shaped disc is placed on the rotating shaft 30. Then the locking nut 31 is installed on the end of the rotating shaft 30, and the I-shaped disc can be fixed to the rotating shaft 30 through the locking nut 31.

[0052] When in use, the welding wire is passed through the gaps among the processing box 3, the brush cylinder 6, the first support plate 4, the absorbent cotton ring 9, the movable plate 8, the nozzle fixing seat 12, the absorbent cotton sleeve 17, the transmission seat 19, the wire feeding wheel 32, and the tensioning wheel 33. As the wire feeding wheel 32 rotates, the welding wire is fed out under the influence of friction, and the welding wire reaches the arc zone at the welding gun 2 through the wire feeding hose.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An automatic welding robot for steel structures, comprising a frame (1) on which a movable welding gun (2) is provided, characterized in that: The frame (1) is also provided with a wire feeding mechanism, which includes a processing box (3). A welding wire cleaning mechanism is provided inside the processing box (3). The welding wire cleaning mechanism includes a fixed first support plate (4). The first support plate (4) is fixedly connected to the processing box (3). A water supply pipe (5) and a brush cylinder (6) are provided on the upper side of the first support plate (4). One end of the brush cylinder (6) is rotatably connected to the first support plate (4). A first motor (7) for driving the brush cylinder (6) to rotate is provided on the first support plate (4). A water absorption assembly is provided on the lower side of the first support plate (4), and the water absorption assembly includes a movable plate (8), a water absorption cotton ring (9) is provided on the movable plate (8), and the movable plate (8) is elastically connected to the first support plate (4) via a first spring (10), a through hole (401) is provided in the middle of the first support plate (4), and a sealing assembly for sealing the through hole (401) is provided on the first support plate (4), and a wire feeding wheel (32) and a tensioning wheel (33) are provided at the lower end of the processing box (3); A drying assembly is provided on the lower side of the processing box (3), and the drying assembly includes a second support plate (11), the second support plate (11) is fixedly connected to the processing box (3), a nozzle fixing seat (12) is provided in the middle of the second support plate (11), the nozzle fixing seat (12) is rotatably connected to the second support plate (11), and a plurality of nozzles (13) are provided on the nozzle fixing seat (12); A transmission rod (21) is provided on the nozzle fixing seat (12), and a plurality of first protrusions (801) are provided at the lower end of the movable plate (8). The first protrusions (801) are arranged on the movable plate (8) in an annular shape and at equal intervals, and the first protrusions (801) are provided with inclined surfaces.

2. An automatic welding robot for steel structures according to claim 1, characterized in that: A sealing cover (14) is provided at the lower end of the second support plate (11), and an extrusion plate (15) is provided inside the sealing cover (14). The extrusion plate (15) is provided with a plurality of extrusion grooves (16). An air inlet (46) is provided on one side of the sealing cover (14).

3. An automatic welding robot for steel structures according to claim 2, characterized in that: A water-absorbing cotton sleeve (17) is provided on the lower side of the nozzle fixing seat (12), and a support frame (18) is provided inside the water-absorbing cotton sleeve (17). A plurality of convex ribs (1701) are provided on the outer side of the water-absorbing cotton sleeve (17). A transmission seat (19) is provided at one end of the support frame (18). The transmission seat (19) is rotatably connected to the sealing cover (14). A second motor (20) for driving the transmission seat (19) to rotate is provided on the sealing cover (14).

4. An automatic welding robot for steel structures according to claim 1, characterized in that: The sealing assembly comprises a sealing plate (22) symmetrically arranged in the first support plate (4), the sealing plate (22) being elastically connected to the first support plate (4) via a second spring (23), one end of the sealing plate (22) being provided with a semicircular groove (2201), and the other end of the sealing plate (22) being provided with an inclined surface, and a top (24) being symmetrically provided on the movable plate (8).

5. An automatic welding robot for steel structures according to claim 1, characterized in that: The sealing assembly includes an inflatable sealing ring (25) and an inflatable cylinder (26), wherein the inflatable sealing ring (25) is located in the through hole (401), and the inflatable cylinder (26) is located on a side of the first support plate (4) close to the movable plate (8). A piston (27) is provided in the inflatable cylinder (26), and the piston (27) is elastically connected to the inflatable cylinder (26) through a third spring (45). A piston rod (28) is provided on the piston (27), and the inflatable cylinder (26) is connected to the inflatable sealing ring (25) through a pipeline.

6. An automatic welding robot for steel structures according to claim 1, characterized in that: A welding wire reel fixing seat (29) is provided at the upper end of the processing box (3), the welding wire reel fixing seat (29) is L-shaped, and one end of the welding wire reel fixing seat (29) is fixedly connected to the processing box (3), and a rotating shaft (30) is provided on the welding wire reel fixing seat (29), and a locking nut (31) is provided at one end of the rotating shaft (30).

7. An automatic welding robot for steel structures according to claim 1, characterized in that: A servo motor (44) for driving the wire feeding wheel (32) to rotate is provided on the processing box (3), and a wheel frame (34) for mounting the tensioning wheel (33) is provided on one side of the servo motor (44). An adjusting rod (35) is provided at one end of the wheel frame (34), and the wheel frame (34) and the adjusting rod (35) are elastically connected via a rebound spring (36). The adjusting rod (35) is slidably connected to the processing box (3), and a first electric push rod (37) for adjusting the position of the adjusting rod (35) is provided on the processing box (3).

8. An automatic welding robot for steel structures according to claim 1, characterized in that: A movable platform (38) is provided on the frame (1), and a second electric push rod (39) is provided on the movable platform (38). A mounting seat (40) is provided on the push rod of the second electric push rod (39), and the mounting seat (40) is detachably connected to the welding gun (2) via screws; A linear rack (41) is provided on the frame (1), the movable platform (38) is slidably connected to the frame (1) via a guide rail, and a driving motor (42) is provided on the upper side of the movable platform (38), and a gear (43) meshing with the linear rack (41) is provided on the motor shaft of the driving motor (42).

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