Steel structure welding machining device

Abstract

The invention discloses a steel structure welding machining device which comprises a transfer device, grinding devices, a welding transfer frame, a steel structure bottom plate and a steel structure vertical plate, the grinding devices are symmetrically and movably connected to the transfer device, and the transfer device is arranged at the output end of the welding transfer frame; the bottom end of the steel structure vertical plate is fixedly welded to the middle of the top end of the steel structure bottom plate, the bottom end of the steel structure vertical plate is in transmission connection to the top end of the welding transfer frame and the transfer device, the transfer device comprises a transfer support, and supporting rollers are evenly and rotationally connected to the inner side of the transfer support. Through cooperation of the horizontal positioning wheel and the vertical positioning wheel, a welded steel structural part can be accurately positioned from the outer side of the steel structural vertical plate and the top end of the steel structural bottom plate, and the multi-directional positioning mode ensures that the position of the steel structural part is accurate and stable in the machining process of subsequent grinding and the like.

Description

Technical Field

[0001] The invention relates to the field of steel structure welding processing, in particular to a steel structure welding processing device. Background Art

[0002] Steel structures are widely used in many fields such as construction, bridges, and machinery manufacturing. Steel structures are usually made up of multiple parts connected by welding, and welded steel structures often need further processing, such as polishing, to meet the requirements of engineering quality and aesthetics.

[0003] However, the traditional post-welding processing method of steel structures has many shortcomings. In terms of positioning, there is often a lack of accurate and effective positioning devices when grinding and other processing are performed on the steel structures after welding. In most cases, rough positioning is performed by manual vision or simple measuring tools. This positioning method has low precision and large errors, and cannot guarantee the position accuracy of the steel structures during the processing, which in turn affects the processing quality. For example, it may cause uneven grinding, local over-grinding or inadequate grinding. Moreover, after welding, a large amount of dust and impurities will be generated. If these dust and impurities are not cleaned in time, they will affect the grinding effect. Therefore, a steel structure welding processing device is urgently needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a steel structure welding processing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a steel structure welding processing device, comprising a transfer device, a grinding device, a welding transfer frame, a steel structure base plate and a steel structure vertical plate, the grinding device is symmetrically and movably connected to the transfer device, the transfer device is arranged at the output end of the welding transfer frame, the bottom end of the steel structure vertical plate is fixedly welded to the middle of the top end of the steel structure base plate, and the bottom end of the steel structure vertical plate is transmission-connected to the top end of the welding transfer frame and the transfer device.

[0006] Preferably, the transfer device includes a transfer bracket, the inner side of the transfer bracket is evenly and symmetrically connected to a support roller, the support roller is rollingly connected to the bottom end of the steel structure bottom plate, the top of the transfer bracket is symmetrically and fixedly installed with two sliding bases, the top of the transfer bracket is evenly and symmetrically fixedly installed with four fixed bottom plates, the top of the fixed bottom plate is evenly and symmetrically fixedly connected with four limiting slide bars, the top of the four limiting slide bars is fixedly installed with a fixed top plate, the middle bottom end of the fixed top plate is fixedly installed with a hydraulic telescopic rod, the telescopic end of the hydraulic telescopic rod is fixedly installed with a lifting adjustment plate, and the lifting adjustment plate is slidably connected to the outside of the four limiting slide bars, the bottom end of the lifting adjustment plate is fixedly installed with a first servo motor, the driving end of the first servo motor is fixedly installed with a driving roller, and the bottom end of the driving roller is rollingly connected to the top of the steel structure bottom plate.

[0007] Preferably, the grinding device includes a sliding adjustment plate, a limited sliding groove is provided at the bottom end of the sliding adjustment plate, one end of the top of the sliding adjustment plate is threadedly connected to a locking bolt, and the end of the top of the sliding adjustment plate away from the locking bolt is fixedly connected to a hollow support rod, the top of the hollow support rod is fixedly installed with a fixed circular plate, the middle part of the fixed circular plate is rotatably connected to a threaded rod, the bottom end of the threaded rod is rotatably connected to the middle part of the inner bottom end of the hollow support rod, and the top of the threaded rod is fixedly installed with an adjusting wheel, and a lifting connecting frame is slidably connected to the hollow support rod, and one end of the lifting connecting frame is threadedly connected to the outer side of the threaded rod.

[0008] Preferably, the lifting bracket is fixedly connected to one end of the lifting connection frame away from the hollow support rod, positioning brackets are symmetrically fixedly installed on both sides of the lifting bracket, a vertical positioning wheel is rotatably installed on the bottom end of the positioning bracket, and a horizontal positioning wheel is rotatably installed on the side of the positioning bracket close to the hollow support rod, a protective shell is fixedly installed on the inner side of the lifting bracket, a transmission shaft is rotatably installed on the bottom end of the lifting bracket, the transmission shaft is located on the inner side of the protective shell, a grinding wheel disc is fixedly installed on the transmission shaft, and a first bevel gear is fixedly installed on the side of the transmission shaft located on the lifting bracket close to the lifting connection frame.

[0009] Preferably, a second servo motor is fixedly installed on one side of the bottom end of the lifting bracket close to the lifting connecting frame, a second bevel gear is fixedly installed on the driving end of the second servo motor, the first bevel gear and the second bevel gear are meshingly connected, a connecting rod is fixedly connected to the middle part of the end of the second bevel gear away from the second servo motor, a turbine blade is fixedly installed on the end of the connecting rod away from the second bevel gear, an air duct bracket is fixedly installed on the outer side of the driving end of the second servo motor, an air duct bracket is fixedly connected to the end of the air duct bracket away from the second servo motor, and the turbine blade is located on the inner side of the air duct.

[0010] Preferably, the limiting slide groove matches the sliding base, and the sliding adjustment plate is slidably connected to the outer side of the top end of the sliding base through the limiting slide groove, the threaded end of the locking bolt is in contact with the top end of the sliding base, the vertical positioning wheel is rollingly connected to the top end of the steel structure base plate, the horizontal positioning wheel is rollingly connected to the outer side of the steel structure vertical plate, and the outer end of the grinding wheel is in contact with the welding point between the steel structure base plate and the steel structure vertical plate.

[0011] Preferably, the end of the air duct away from the air duct bracket is designed to be inclined, and the inclination direction of the air duct is the end of the transfer bracket close to the welding transfer frame.

[0012] Preferably, the lifting bracket is designed to be inclined, and the end of the lifting bracket away from the lifting connecting frame is inclined downward by forty-five degrees, the vertical positioning wheel is designed to be vertical, and the horizontal positioning wheel is designed to be horizontal.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The invention can accurately position the welded steel structure parts from two directions, the outer side of the steel structure vertical plate and the top of the steel structure bottom plate, through the cooperation of the horizontal positioning wheel and the vertical positioning wheel. This multi-directional positioning method ensures that the position of the steel structure parts is accurate and stable during the subsequent grinding and other processing processes, which is conducive to improving the processing accuracy. By using the sliding adjustment plate on the sliding base and the threaded rod driving the lifting and lowering of the lifting connection frame, the positions of the horizontal positioning wheel and the vertical positioning wheel can be flexibly adjusted according to steel structures of different sizes and shapes, so that they can fit the steel structures tightly and achieve stable clamping. This design greatly enhances the adaptability of the device to steel structures of different specifications. During the grinding process, the turbine fan blades are used to rotate and push air into the air guide duct, and the air is guided to the side of the grinding wheel disc close to the welding transfer frame, so that dust and impurities attached to the steel structure bottom plate and the steel structure vertical plate can be cleaned up in time, which can effectively prevent dust and impurities from mixing into the grinding area and affecting the grinding effect. On the one hand, the second servo motor drives the first bevel gear to rotate through the second bevel gear transmission, thereby driving the grinding wheel to rotate to realize the grinding function; on the other hand, it can drive the connecting rod and the turbine blades to rotate through the second bevel gear to provide power for cleaning dust and impurities. This coordinated drive enables one motor to meet the power requirements of multiple key processes at the same time, reducing the complexity and cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the main body in the second state of the present invention; Figure 3 It is a schematic diagram of the structure of the transfer device in the present invention; Figure 4 It is a schematic diagram of the structure of the grinding device in the present invention; Figure 5 It is a schematic diagram of the disassembled structure of the grinding device in the present invention; Figure 6 It is a schematic diagram of the bottom structure of the grinding device in the present invention; Figure 7 It is a partial structural diagram of the second servo motor in the present invention.

[0015] In the figure: 1-transfer device, 2-grinding device, 3-welding transfer frame, 4-steel structure bottom plate, 5-steel structure vertical plate, 6-transfer bracket, 7-support roller, 8-sliding base, 9-fixed bottom plate, 10-limiting slide bar, 11-fixed top plate, 12-hydraulic telescopic rod, 13-lifting adjustment plate, 14-first servo motor, 15-driving roller, 20-sliding adjustment plate, 21-limiting slide groove, 22-locking bolt, 23-hollow Support rod, 24-fixed circular plate, 25-threaded rod, 26-adjusting wheel, 27-lifting connecting frame, 28-lifting bracket, 29-positioning bracket, 30-protective shell, 31-transmission shaft, 32-grinding wheel, 33-vertical positioning wheel, 34-horizontal positioning wheel, 35-first bevel gear, 36-second servo motor, 37-second bevel gear, 38-connecting rod, 39-turbine fan blade, 40-duct bracket, 41-air guide duct. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0017] See also Figure 1 and Figure 2 An embodiment of the present invention is: a steel structure welding processing device, including a transfer device 1, a grinding device 2, a welding transfer frame 3, a steel structure bottom plate 4 and a steel structure vertical plate 5, the grinding device 2 is symmetrically and movably connected to the transfer device 1, the transfer device 1 is arranged at the output end of the welding transfer frame 3, the bottom end of the steel structure vertical plate 5 is fixedly welded to the middle of the top end of the steel structure bottom plate 4, and the bottom end of the steel structure vertical plate 5 is transmission-connected to the top end of the welding transfer frame 3 and the transfer device 1.

[0018] See also Figure 3The transfer device 1 includes a transfer bracket 6, the inner side of the transfer bracket 6 is evenly rotated and connected with a support roller 7, the support roller 7 is rollingly connected to the bottom end of the steel structure bottom plate 4, the top of the transfer bracket 6 is symmetrically fixed with two sliding bases 8, the top of the transfer bracket 6 is evenly and symmetrically fixed with four fixed bottom plates 9, the top of the fixed bottom plate 9 is evenly and symmetrically fixed with four limiting slide bars 10, the top of the four limiting slide bars 10 is fixedly installed with a fixed top plate 11, and the middle bottom end of the fixed top plate 11 is fixedly installed with a hydraulic telescopic rod 12, A lifting and adjusting plate 13 is fixedly installed on the telescopic end of the hydraulic telescopic rod 12, and the lifting and adjusting plate 13 is slidably connected to the outside of the four limit slide bars 10, and a first servo motor 14 is fixedly installed on the bottom end of the lifting and adjusting plate 13, and a driving roller 15 is fixedly installed on the driving end of the first servo motor 14, and the bottom end of the driving roller 15 is rollingly connected to the top of the steel structure bottom plate 4. The four driving rollers 15 are distributed at both ends of the transfer bracket 6, and the steel structure bottom plate 4 and the steel structure vertical plate 5 can be polished and loaded and unloaded through the driving rollers 15.

[0019] See also Figure 4-Figure 6 The grinding device 2 includes a sliding adjustment plate 20, a limited sliding groove 21 is provided at the bottom end of the sliding adjustment plate 20, and one end of the top of the sliding adjustment plate 20 is threadedly connected with a locking bolt 22. When the locking bolt 22 is screwed until the threaded end is tightly against the top of the sliding base 8, the sliding adjustment plate 20 can be locked. A hollow support rod 23 is fixedly connected to the end of the top of the sliding adjustment plate 20 away from the locking bolt 22, and a fixed circular plate 24 is fixedly installed on the top of the hollow support rod 23. A threaded rod 25 is rotatably connected to the middle part of the inner bottom end of the hollow support rod 23, and an adjusting wheel 26 is fixedly installed on the top of the threaded rod 25. A lifting connecting frame 27 is slidably connected to the hollow support rod 23, and one end of the lifting connecting frame 27 is threadedly connected to the outer side of the threaded rod 25, and the threaded rod 25 is limited by the fixed circular plate 24, so that the lifting connecting frame 27 is driven to move by the rotating threaded rod 25.

[0020] The lifting and lowering connecting frame 27 is fixedly connected to one end of the hollow support rod 23, and the lifting and lowering supporting frame 28 is symmetrically fixedly installed with positioning brackets 29 on both sides. The bottom end of the positioning bracket 29 is rotatably installed with a vertical positioning wheel 33, and the positioning bracket 29 is rotatably installed with a horizontal positioning wheel 34 on one side close to the hollow support rod 23. The positioning brackets 29 symmetrically arranged on both sides can be used to apply more accurate positioning to the steel structure base plate 4 and the steel structure vertical plate 5, and at the same time, the steel structure base plate 4 and the steel structure vertical plate 5 can be kept moving in a straight line. A protective shell 30 is fixedly installed on the inner side of the lifting and lowering supporting frame 28, and the protective shell 30 is used to block grinding debris. A transmission shaft 31 is rotatably installed on the bottom end of the lifting and lowering supporting frame 28, and the transmission shaft 31 is located on the inner side of the protective shell 30. A grinding wheel disc 32 is fixedly installed on the transmission shaft 31. The transmission shaft 31 is located on the side of the lifting and lowering supporting frame 28 close to the lifting and lowering connecting frame 27 and is fixedly installed with a first bevel gear 35, and the transmission shaft 31 and the grinding wheel disc 32 are driven to rotate by the first bevel gear 35.

[0021] See also Figure 7 A second servo motor 36 is fixedly installed on one side of the bottom end of the lifting bracket 28 near the lifting connecting frame 27, and a second bevel gear 37 is fixedly installed on the driving end of the second servo motor 36. The first bevel gear 35 and the second bevel gear 37 are meshed and connected. The driving end of the second servo motor 36 drives the second bevel gear 37 to rotate, and the rotating second bevel gear 37 drives the first bevel gear 35 to rotate. The rotating first bevel gear 35 drives the transmission shaft 31 to rotate, thereby driving the grinding wheel 32 to rotate and grind. The middle part of the end of the second bevel gear 37 away from the second servo motor 36 is fixedly connected with a connecting rod 38. A turbine blade 39 is fixedly installed at one end of the connecting rod 38 away from the second bevel gear 37. The rotating second bevel gear 37 drives the connecting rod 38 and the turbine blade 39 to rotate. The rotation of the turbine blade 39 promotes the accelerated flow of air. A duct bracket 40 is fixedly installed on the outer side of the driving end of the second servo motor 36. An end of the duct bracket 40 away from the second servo motor 36 is fixedly connected to an air duct 41, and the turbine blade 39 is located on the inner side of the air duct 41. The air pushed by the turbine blade 39 enters the air duct 41 and is transported to the end of the air duct 41 away from the turbine blade 39 for discharge.

[0022] See also Figure 4-Figure 6The limiting slide groove 21 matches the sliding base 8, and the sliding adjustment plate 20 is slidably connected to the outer side of the top end of the sliding base 8 through the limiting slide groove 21, and the threaded end of the locking bolt 22 is in contact with the top end of the sliding base 8. The sliding adjustment plate 20 is pushed to move on the top end of the sliding base 8 to adjust the position of the grinding wheel disc 32, so that it is suitable for grinding materials of different specifications. The vertical positioning wheel 33 is rollingly connected to the top end of the steel structure bottom plate 4, and the horizontal positioning wheel 34 is rollingly connected to the outer side of the steel structure vertical plate 5. The rolling connection method can achieve the positioning effect without damaging the steel structure bottom plate 4 and the steel structure vertical plate 5. The outer end of the grinding wheel disc 32 is in contact with the welding point of the steel structure bottom plate 4 and the steel structure vertical plate 5, and the rotation of the grinding wheel disc 32 grinds the welding point to make it smooth.

[0023] The end of the air duct 41 away from the air duct bracket 40 is designed to be inclined, and the inclination direction of the air duct 41 is the end of the transfer bracket 6 close to the welding transfer bracket 3. Before the steel structure base plate 4 moves to the grinding wheel disc 32, the air pushed by the turbine fan blades 39 cleans up the residue and debris, thereby avoiding the residue and debris from affecting the grinding operation. The lifting bracket 28 is designed to be inclined, and the end of the lifting bracket 28 away from the lifting connecting frame 27 is tilted downward by forty-five degrees. The vertical positioning wheel 33 is designed to be vertical, and the horizontal positioning wheel 34 is designed to be horizontal. It is positioned at the top of the steel structure base plate 4 through the vertical positioning wheel 33, and is positioned at one side of the steel structure vertical plate 5 through the horizontal positioning wheel 34. The positioning of the vertical positioning wheel 33 and the horizontal positioning wheel 34 facilitates the control of the grinding depth to avoid excessive or light grinding.

[0024] Working principle: During use, the steel structure bottom plate 4 and the steel structure vertical plate 5 are connected by welding and then moved to the top of the welding transfer frame 3, and then moved to the top of the support roller 7 through the welding transfer frame 3. When the steel structure bottom plate 4 moves to the bottom of the positioning bracket 29 close to the welding transfer frame 3, the locking bolt 22 is twisted away from the sliding base 8 by external force, and the sliding adjustment plate 20 is pushed to slide close to the steel structure bottom plate 4 on the top of the sliding base 8 until the outer side of the horizontal positioning wheel 34 is close to the outer side of the steel structure vertical plate 5, and then the adjustment is rotated by external force. The rotation of the rotating wheel 26 drives the threaded rod 25 to rotate. Since the threaded rod 25 is threadedly connected to the lifting connection frame 27, the rotating threaded rod 25 pushes the lifting connection frame 27 to move downward until the bottom end of the vertical positioning wheel 33 is close to the top of the steel structure bottom plate 4, and then the other grinding device 2 is adjusted by external force, so that the bottom end of the vertical positioning wheel 33 in the other grinding device 2 is close to the top of the steel structure bottom plate 4, and the outer end of the horizontal positioning wheel 34 is close to the outer side of the steel structure vertical plate 5. At this time, the locking bolt 22 is screwed downward by external force. The second servo motor 36 is then started, and the two hydraulic telescopic rods 12 located on the grinding device 2 near the welding transfer frame 3 are controlled to extend. The telescopic ends of the hydraulic telescopic rods 12 push the lifting adjustment plate 13 downward, thereby driving the first servo motor 14 and the driving roller 15 to move downward until the bottom end of the driving roller 15 is in close contact with the top of the steel structure bottom plate 4. The first servo motor 14 is then started, and the driving end of the first servo motor 14 drives the driving roller 15 to rotate, and the rotating driving The roller 15 pushes the steel structure bottom plate 4 to move toward the end of the transfer bracket 6 away from the welding transfer bracket 3. The movement of the steel structure bottom plate 4 drives the steel structure vertical plate 5 to move at the same time. The driving end of the second servo motor 36 drives the second bevel gear 37 to rotate. The rotation of the second bevel gear 37 drives the first bevel gear 35 to rotate. The rotation of the first bevel gear 35 drives the transmission shaft 31 to rotate, thereby driving the grinding wheel disc 32 to rotate. When the steel structure bottom plate 4 moves to the grinding wheel disc 32, the rotating grinding wheel disc 32 grinds the welding part of the steel structure bottom plate 4 and the steel structure vertical plate 5. When the second servo motor 36 is started, the second bevel gear 37 drives the connecting rod 38 to rotate, and the rotating connecting rod 38 drives the turbine blades 39 to rotate. The rotating turbine blades 39 push air into the interior of the air duct 41, and guide the air to the side of the grinding wheel 32 close to the welding transfer frame 3 through the air duct 41. The flowing air cleans the dust and impurities attached to the steel structure bottom plate 4 and the steel structure vertical plate 5 to avoid affecting the grinding effect. When the steel structure bottom plate 4 moves to the driving roller 15 located at the end of the transfer bracket 6 away from the welding transfer frame 3, the hydraulic pressure is controlled The telescopic rod 12 extends, pushing the lifting adjustment plate 13 to move downward, driving the first servo motor 14 and the driving roller 15 to move downward until the bottom end of the driving roller 15 is close to the top of the steel structure base plate 4, and starting the first servo motor 14. The driving end of the first servo motor 14 drives the driving roller 15 to rotate, thereby pushing the steel structure base plate 4 to continue to move on the top of the supporting roller 7. When the tail end of the steel structure base plate 4 is polished and away from the polishing wheel 32, the steel structure base plate 4 is transported to the next processing procedure through the transfer bracket 6 away from the driving roller 15 at one end of the welding transfer bracket 3.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that numerous changes, modifications, substitutions and alterations may be made to the embodiments without departing from the spirit and scope of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel structure welding processing device, comprising a transfer device (1), a grinding device (2), a welding transfer frame (3), a steel structure bottom plate (4) and a steel structure vertical plate (5), characterized in that: The grinding device (2) is symmetrically and movably connected to the transfer device (1), and the transfer device (1) is arranged at the output end of the welding transfer frame (3). The bottom end of the steel structure vertical plate (5) is fixedly welded to the middle of the top end of the steel structure bottom plate (4), and the bottom end of the steel structure vertical plate (5) is drivingly connected to the top end of the welding transfer frame (3) and the transfer device (1).

2. A steel structure welding processing device according to claim 1, characterized in that: The transfer device (1) comprises a transfer bracket (6), the inner side of the transfer bracket (6) is evenly rotatably connected to a support roller (7), the support roller (7) is rollingly connected to the bottom end of the steel structure bottom plate (4), the top of the transfer bracket (6) is symmetrically fixedly installed with two sliding bases (8), the top of the transfer bracket (6) is evenly symmetrically fixedly installed with four fixed bottom plates (9), the top of the fixed bottom plate (9) is evenly symmetrically fixedly connected with four limit slide bars (10), and the tops of the four limit slide bars (10) are fixedly installed with a fixed top plate ( 11), a hydraulic telescopic rod (12) is fixedly mounted at the middle bottom end of the fixed top plate (11), a lifting adjustment plate (13) is fixedly mounted at the telescopic end of the hydraulic telescopic rod (12), and the lifting adjustment plate (13) is slidably connected to the outside of the four limit sliding rods (10), a first servo motor (14) is fixedly mounted at the bottom end of the lifting adjustment plate (13), a driving roller (15) is fixedly mounted at the driving end of the first servo motor (14), and the bottom end of the driving roller (15) is rollingly connected to the top end of the steel structure bottom plate (4).

3. A steel structure welding processing device according to claim 1, characterized in that: The grinding device (2) comprises a sliding adjustment plate (20), the bottom end of the sliding adjustment plate (20) is provided with a limited sliding groove (21), one end of the top end of the sliding adjustment plate (20) is threadedly connected to a locking bolt (22), one end of the top end of the sliding adjustment plate (20) away from the locking bolt (22) is fixedly connected to a hollow support rod (23), a fixed circular plate (24) is fixedly installed at the top end of the hollow support rod (23), a threaded rod (25) is rotatably connected to the middle part of the inner bottom end of the hollow support rod (23), an adjusting wheel (26) is fixedly installed at the top end of the threaded rod (25), a lifting connection frame (27) is slidably connected to the hollow support rod (23), and one end of the lifting connection frame (27) is threadedly connected to the outer side of the threaded rod (25).

4. A steel structure welding processing device according to claim 3, characterized in that: The lifting bracket (28) is fixedly connected to one end of the lifting connection frame (27) away from the hollow support rod (23), and positioning brackets (29) are symmetrically fixedly installed on both sides of the lifting bracket (28). A vertical positioning wheel (33) is rotatably installed on the bottom end of the positioning bracket (29), and a horizontal positioning wheel (34) is rotatably installed on the side of the positioning bracket (29) close to the hollow support rod (23). A protective shell (30) is fixedly installed on the inner side of the lifting bracket (28), and a transmission shaft (31) is rotatably installed on the bottom end of the lifting bracket (28). The transmission shaft (31) is located on the inner side of the protective shell (30), and a grinding wheel disc (32) is fixedly installed on the transmission shaft (31). A first bevel gear (35) is fixedly installed on the side of the transmission shaft (31) located on the lifting bracket (28) close to the lifting connection frame (27).

5. A steel structure welding processing device according to claim 4, characterized in that: A second servo motor (36) is fixedly mounted on one side of the bottom end of the lifting bracket (28) close to the lifting connecting frame (27); a second bevel gear (37) is fixedly mounted on the driving end of the second servo motor (36); the first bevel gear (35) and the second bevel gear (37) are meshingly connected; a connecting rod (38) is fixedly connected to the middle of one end of the second bevel gear (37) away from the second servo motor (36); a turbine blade (39) is fixedly mounted on one end of the connecting rod (38) away from the second bevel gear (37); an air duct bracket (40) is fixedly mounted on the outer side of the driving end of the second servo motor (36); an air duct bracket (40) is fixedly connected to one end of the air duct bracket (40) away from the second servo motor (36); and the turbine blade (39) is located on the inner side of the air duct (41).

6. A steel structure welding processing device according to claim 2 or 4, characterized in that: The limiting slide groove (21) matches the sliding base (8), and the sliding adjustment plate (20) is slidably connected to the outer side of the top end of the sliding base (8) through the limiting slide groove (21), the threaded end of the locking bolt (22) is in contact with the top end of the sliding base (8), the vertical positioning wheel (33) is rollingly connected to the top end of the steel structure base plate (4), the horizontal positioning wheel (34) is rollingly connected to the outer side of the steel structure vertical plate (5), and the outer side end of the grinding wheel (32) is in contact with the welding point between the steel structure base plate (4) and the steel structure vertical plate (5).

7. A steel structure welding processing device according to claim 2 or 5, characterized in that: The end of the air duct (41) away from the air duct support (40) is designed to be inclined, and the inclination direction of the air duct (41) is the end of the transfer support (6) close to the welding transfer frame (3).

8. A steel structure welding processing device according to claim 4, characterized in that: The lifting bracket (28) is designed to be inclined, and one end of the lifting bracket (28) away from the lifting connection frame (27) is tilted downward by forty-five degrees. The vertical positioning wheel (33) is designed to be vertical, and the horizontal positioning wheel (34) is designed to be horizontal.

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