Automatic multi-angle welding device and method for steel material

Abstract

The application provides a steel automatic multi-angle welding device and method, and belongs to the technical field of steel welding. The device comprises a main body, a welding arm, a driving assembly, a suction mechanism and a dismounting assembly. The bottom end of the mounting plate of the suction mechanism is provided with a connecting pipe one. The inner bottom end of the connecting pipe one is rotationally connected with a connecting pipe two. The bottom end of the connecting pipe two is provided with a sealing sleeve. The inner sealing sleeve is fixedly installed with an electric push rod. The output shaft of the electric push rod is fixedly installed with a connecting shell. The side of the connecting shell close to the center of the sealing sleeve is fixedly installed with a suction disc. The top end of the mounting plate is fixedly installed with a vacuum pump. The flexible bellows connected with the vacuum pump is connected with the connecting pipe two. The application adopts a combination mode of negative pressure suction and a three-point self-adaptive stable assembly, improves the clamping stability, avoids the surface damage of the steel pipe caused by the position deviation, ensures the integrity of the circular steel pipe, can adapt to diversified welding requirements, and improves the overall quality of the welding work.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel welding, and particularly relates to a steel automatic multi-angle welding device and method. BACKGROUND

[0002] In many fields such as industrial production, construction, bridge, shipbuilding, etc., it is often necessary to precisely weld a circular steel pipe or a steel material with a specific arc to one side of a plate-shaped steel material. This process is not only a simple connection, but also a key link that has a significant impact on the structural strength, stability and overall aesthetics. Therefore, this process requires that the circular steel pipe or arc-shaped steel material be accurately hoisted and positioned to the specified position on the plate-shaped steel material, and then clamped stably before subsequent high-quality welding operations. Currently, in order to improve the welding quality and production efficiency, laser welding has gradually replaced the traditional welding method, and the use of welding arms (robotic arms) for automatic welding has become the industry development trend, especially for advanced welding processes such as laser welding with extremely high precision requirements, which poses more stringent challenges to the stability of clamping.

[0003] After searching, patent document CN222626607U discloses a steel welding device, which includes a workbench, a mounting plate fixed on the upper surface of the workbench, and an automatic welding mechanism installed on the surface of the mounting plate. An auxiliary fixing assembly is installed on the workbench, which includes symmetrically arranged support seats on the upper surface of the workbench, a fixed plate arranged above the support seats, and a clamping mechanism installed on the upper surface of the fixed plate. The lower surface of the fixed plate is fixed with an adjusting seat. By setting the auxiliary fixing assembly, the angle between the two adjusting steel plates can be changed, which facilitates the adjustment of the welding angle between the steel plates of the three-dimensional structure, thereby improving the use effect of the device, bringing convenience to the operator, and meeting the actual use requirements.

[0004] Although the above-mentioned patent document changes the angle between the two adjusting steel plates, which facilitates the adjustment of the welding angle between the steel plates of the three-dimensional structure; however, the welding device adopted by the above-mentioned patent document is not completely suitable for the welding of thin-walled circular steel pipes and plate-shaped steel materials. Specifically, when a circular steel pipe with a thin wall is welded with a plate-shaped steel material, if a conventional clamping device is used, the surface of the circular steel pipe is easily damaged, which not only weakens the structural strength of the circular steel pipe, but also affects its aesthetics. In order to avoid damage, the common practice is to increase the wall thickness of the steel pipe, but this will lead to an increase in the weight and volume of the overall equipment, making the welding parts cumbersome. In addition, the existing clamping mechanism is prone to relative sliding between the circular steel pipe and the clamping structure during multi-angle welding, thereby affecting the efficiency and quality of the welding work, especially in the automatic laser welding process which requires high-precision positioning. This sliding may cause the welding position to deviate, affecting the quality of the final product. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a steel automatic multi-angle welding device and method, which effectively solves the problem that when a thin-walled circular steel pipe is welded with a plate-shaped steel material, the use of conventional clamping devices can easily cause damage to the surface of the circular steel pipe, which not only weakens the structural strength of the circular steel pipe, but also affects its appearance; in order to avoid damage, the common practice is to increase the wall thickness of the steel pipe, but this will lead to an increase in the overall equipment weight and volume, making the welding components cumbersome; in addition, the existing clamping mechanism is prone to relative sliding between the circular steel pipe and the clamping structure during multi-angle welding, thereby affecting the efficiency and quality of the welding work, especially in the process of automated laser welding which requires high-precision positioning, such sliding can cause welding position deviation, affecting the quality of the final product.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a steel automatic multi-angle welding device, comprising a main body, a welding arm and a driving assembly, further comprising: an adsorption mechanism arranged on one side of the driving assembly, the adsorption mechanism comprising a mounting plate arranged on one side of the driving assembly, a connecting pipe one is arranged at the bottom end of the mounting plate, a connecting pipe two is rotatably connected inside the bottom end of the connecting pipe one, a sealing sleeve is arranged at the bottom end of the connecting pipe two, a connecting assembly is arranged inside the sealing sleeve, an electric push rod is fixedly installed inside the sealing sleeve, a connecting shell is fixedly installed on the output shaft of the electric push rod, and the hoses around the connecting assembly are connected with the connecting shell, a suction cup is fixedly installed on one side of the connecting shell close to the center of the sealing sleeve, a vacuum pump is fixedly installed at the top end of the mounting plate, and a flexible bellows connected with the vacuum pump is connected with the connecting pipe two; a disassembly assembly is arranged at the air inlet of the connecting assembly, and the sealing sleeve can be fixed at the bottom end of the connecting pipe two.

[0007] As a further improvement of the present application, the disassembly assembly comprises a spiral pipe, the spiral pipe is rotatably connected inside the connecting assembly, and a rotating block one is fixedly installed on the surface of the spiral pipe, and the spiral pipe is screw-connected with the connecting pipe two.

[0008] As a further improvement of the present application, the steel automatic multi-angle welding device further comprises: a driving mechanism arranged at the top end of the sealing sleeve, the driving mechanism comprising a fixed shell fixedly connected to the top end of the sealing sleeve, a movable sealing ring arranged inside the fixed shell, a spring elastically connected between the movable sealing ring and the fixed shell, and the connecting assembly connected with the fixed shell through an air extraction pipe; a three-point self-adaptive stable assembly arranged on the outer surface of the movable sealing ring, which can limit the circular steel pipe.

[0009] As a further improvement of the present application, the three-point self-adapting stabilizing assembly comprises a connecting shaft fixedly connected to the top end of the mobile sealing ring, hinged rods rotatably connected to the two sides of the connecting shaft, locking members rotatably connected to the inside of the hinged rods, and contact pads arranged on the side of the locking members close to the center of the sealing sleeve.

[0010] As a further improvement of the present application, the automatic multi-angle welding device for steel material further comprises an adjusting mechanism arranged on the surface of the connecting pipe two, the adjusting mechanism comprises a connecting disc fixedly connected to the surface of the connecting pipe two, three mounting blocks fixedly installed at the top end of the connecting disc, three hydraulic cylinders rotatably connected to the bottom end of the mounting plate, and three rotating blocks two rotatably connected to the inside of the three mounting blocks and connected to the output shafts of the hydraulic cylinders.

[0011] As a further improvement of the present application, the automatic multi-angle welding device for steel material further comprises a limiting assembly arranged on the surface of the connecting pipe one, the limiting assembly comprises a limiting groove opened on the surface of the connecting pipe one, and a connecting sliding block fixedly installed on the surface of the connecting pipe two inside the limiting groove.

[0012] As a further improvement of the present application, the inside of the sealing sleeve is rotatably connected to a guide wheel, and the hoses around the connecting assembly can move on the surface of the guide wheel.

[0013] As a further improvement of the present application, the inside of the fixed shell is fixedly installed with a limiting ring, and the surface of the limiting ring can contact the bottom end of the mobile sealing ring.

[0014] As a further improvement of the present application, the three contact pads close to the side of the circular steel pipe are all arc-shaped in design, and the contact pads are made of rubber material.

[0015] The present application also provides a welding method using the automatic multi-angle welding device for steel material, the welding method comprising the following steps:

[0016] S1, place the steel plate on the surface of the conveying roller, move it to the side of the welding arm, start the driving assembly to make the sealing sleeve cover the surface of the circular steel pipe, then drive the electric push rod to make the suction disc contact the surface of the circular steel pipe, and use the vacuum pump to extract the air inside the connecting shell, and use the negative pressure to fix the circular steel pipe;

[0017] S2, while the connecting assembly extracts the air inside the connecting shell, the air inside the fixed shell is also extracted by the suction pipe, then the mobile sealing ring moves to drive the connecting shaft, the hinged rod drives the locking member and the contact pad to fold towards the surface of the circular steel pipe, thereby limiting the circular steel pipe;

[0018] S3, make the drive assembly on the slide rail on one side of the main body moves, need to adjust the angle of the circular steel pipe, drive one of the hydraulic cylinders to make its output shaft pull the rotating block two moves, while the other two hydraulic cylinders cooperate with the activated hydraulic cylinder, thereby enabling the connecting disc to drive the connecting pipe two to rotate inside the bottom end of the connecting pipe one, the connecting pipe two can adjust the angle of the circular steel pipe, thereby adapting the multi-angle welding of the welding arm;

[0019] S4, make the drive assembly move on the surface of the slide rail on one side of the main body, the drive assembly will drive the adsorption mechanism and the circular steel pipe to move to the position to be welded, and make the circular steel pipe contact with the steel plate, and use the mechanical hand of the welding arm to weld.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] (1) The steel automatic multi-angle welding device provided by the present application adopts a combination of negative pressure adsorption and a three-point self-adaptive stable assembly, which significantly improves the clamping stability; not only avoids damage to the surface of the steel pipe caused by position deviation during transfer, but also ensures the integrity and aesthetics of the circular steel pipe; by flexibly adjusting the angle of the steel pipe, it can adapt to diversified welding needs, thereby improving the overall quality of the welding work.

[0022] (2) The present application drives the suction cup into contact with the surface of the circular steel pipe by driving the electric push rod, and uses the negative pressure generated by the vacuum pump to firmly adsorb the circular steel pipe; this non-contact fixing method avoids the deformation problem caused by excessive clamping stress when the traditional clamping device clamps the thin-walled steel pipe, thereby effectively ensuring the welding quality and product appearance.

[0023] (3) The steel automatic multi-angle welding device provided by the present application, when the vacuum pump is working, the air extraction pipe connected with the connecting assembly will also extract the air inside the fixed shell, the moving sealing ring will move inside the fixed shell, the spring will be stretched, the moving sealing ring will drive the connecting shaft to move, the connecting shaft will push the articulated rod to move, the articulated rod will push the locking piece and the contact pad to fold towards the surface of the circular steel pipe, thereby being able to limit the circular steel pipe; this three-point self-adaptive stable structure can effectively prevent the circular steel pipe from shaking and falling off during transfer, improving the stability of the transfer; in addition, the contact pad is made of rubber material, which plays a buffering and protection role, avoiding damage to the surface of the steel pipe, further maintaining the integrity and aesthetics of the steel pipe.

[0024] (4) The present application can accurately adjust the position of the connecting disc by precisely controlling one of the hydraulic cylinders and working in cooperation with the other two hydraulic cylinders, thereby driving the sealing sleeve and the circular steel pipe to realize flexible rotation at multiple angles; the device can easily cope with various complex welding scenes, realizes multi-angle precise welding, and significantly improves the flexibility and adaptability of the welding operation. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall structure schematic diagram of the present application;

[0026] Figure 2 is the driving assembly schematic diagram of the present application;

[0027] Figure 3 is the mounting plate schematic diagram of the present application;

[0028] Figure 4 is the connecting pipe one and connecting pipe two connection schematic diagram of the present application;

[0029] Figure 5 is the connecting pipe two and spiral pipe connection schematic diagram of the present application;

[0030] Figure 6 is the sealing sleeve internal schematic diagram of the present application;

[0031] Figure 7 is the connecting shell schematic diagram of the present application;

[0032] Figure 8 is the fixed shell schematic diagram of the present application;

[0033] Figure 9 is the disassembly assembly schematic diagram of the present application;

[0034] Figure 10 is the Figure 7 is the A place enlarged schematic diagram in the present application.

[0035] In the figure: 100, the main body; 200, the welding arm; 300, the driving assembly; 400, the adsorption mechanism; 401, the mounting plate; 402, the connecting pipe one; 403, the connecting pipe two; 404, the sealing sleeve; 405, the connecting assembly; 406, the electric push rod; 407, the connecting shell; 408, the suction cup; 409, the vacuum pump; 500, the dismounting assembly; 501, the spiral pipe; 502, the rotating block one; 600, the driving mechanism; 601, the fixed shell; 602, the spring; 603, the moving sealing ring; 604, the air suction pipe; 700, the three-point self-adaptive stable assembly; 701, the connecting shaft; 702, the articulated rod; 703, the locking piece; 704, the contact pad; 800, the adjusting mechanism; 801, the connecting disc; 802, the mounting block; 803, the hydraulic cylinder; 804, the rotating block two; 900, the limiting assembly; 901, the limiting groove; 902, the connecting sliding block; 1001, the guide wheel; 1101, the limiting ring. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] It should be understood that in the description of the application, it is necessary to explain that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly.

[0039] Embodiment 1: see attached Figures 1 to 10 The steel automatic multi-angle welding device provided in the embodiment 1 comprises a main body 100, a welding arm 200 and a driving assembly 300, and further comprises:

[0040] The adsorption mechanism 400 is arranged on one side of the driving assembly 300;

[0041] The adsorption mechanism 400 comprises a mounting plate 401 provided on one side of the driving assembly 300, a connecting pipe one 402 provided at the bottom end of the mounting plate 401, a connecting pipe two 403 rotatably connected to the inside of the bottom end of the connecting pipe one 402, a sealing sleeve 404 provided at the bottom end of the connecting pipe two 403, a connecting assembly 405 provided in the sealing sleeve 404, an electric push rod 406 fixedly installed in the sealing sleeve 404, a connecting shell 407 fixedly installed on the output shaft of the electric push rod 406, and a soft tube connected to the connecting shell 407 around the connecting assembly 405, a suction cup 408 fixedly installed on the side of the connecting shell 407 close to the center of the sealing sleeve 404, and a vacuum pump 409 fixedly installed at the top end of the mounting plate 401, and a flexible bellows connected to the vacuum pump 409 connected to the connecting pipe two 403.

[0042] The dismounting assembly 500 is provided at the air inlet of the connecting assembly 405 and can fix the sealing sleeve 404 at the bottom end of the connecting pipe two 403.

[0043] The operator places the circular steel pipe to be welded at the bottom end of the sealing sleeve 404, and then places the steel plate on the conveying roller in the main body 100, and then the conveying roller can transport the steel plate to the side of the welding arm 200. At this time, the existing transport tool or other tool can be used to place the circular steel pipe at the bottom of the sealing sleeve 404. The driving assembly 300 can be driven to make the adsorption mechanism 400 as a whole descend, and then the sealing sleeve 404 can be sleeved on the surface of the circular steel pipe. At this time, the electric push rod 406 can be driven to make the output shaft thereof push the connecting shell 407 and the suction cup 408 to move towards the surface of the circular steel pipe. Then the suction cup 408 can be attached to the surface of the circular steel pipe. The vacuum pump 409 can be driven to make the flexible bellows extract the air in the connecting shell 407, and the suction cup 408 can form a negative pressure space, so that the circular steel pipe can be fixed. The driving assembly 300 can be driven to make the adsorption mechanism 400 and the circular steel pipe ascend. Then the driving assembly 300 can be driven to move on the slide rail on the side of the main body 100, so as to make the driving assembly 300 and the circular steel pipe move to the top end of the steel plate. The driving assembly 300 can be driven to place the circular steel pipe at the position to be welded with the steel plate. The welding arm 200 can be driven to weld the connection position thereof.

[0044] Referring to Figs. 1 to 8, Figure 5 、 Figure 6 、 Figure 8 and Figure 9 , the dismounting assembly 500 comprises a spiral pipe 501 rotatably connected to the inside of the connecting assembly 405, a rotating block one 502 fixedly installed on the surface of the spiral pipe 501, and the spiral pipe 501 is threadedly connected to the connecting pipe two 403.

[0045] By disassembling the design of the assembly 500, the rotating block one 502 can be rotated, and the rotating block one 502 can drive the spiral pipe 501 to rotate inside the connecting assembly 405. Since the spiral pipe 501 is threadedly connected with the connecting pipe two 403, when the rotating block one 502 rotates, the spiral pipe 501 enters the inside of the connecting pipe two 403, thereby fixing the sealing sleeve 404 at the bottom end of the connecting pipe two 403. The spiral pipe 501 is hollowly designed, thereby not affecting the air inside the extraction connecting shell 407. Finally, according to the size of the circular steel pipe, the appropriate sealing sleeve 404 can be selected through the design of the spiral pipe 501 and the rotating block one 502.

[0046] Referring to the accompanying drawings Figure 8 and Figure 9 The device further comprises a driving mechanism 600 arranged at the top end of the sealing sleeve 404. The driving mechanism 600 comprises a fixed shell 601 fixedly connected to the top end of the sealing sleeve 404. The inside of the fixed shell 601 is provided with a movable sealing ring 603. The movable sealing ring 603 and the fixed shell 601 are elastically connected by a spring 602. The connecting assembly 405 is connected with the fixed shell 601 through an air extraction pipe 604.

[0047] The three-point adaptive stabilizing assembly 700 is arranged on the outer surface of the movable sealing ring 603, which can limit the circular steel pipe.

[0048] Through the design of the driving mechanism 600, when the vacuum pump 409 extracts the air pressure inside the extraction connecting shell 407, the air extraction pipe 604 also extracts the gas inside the fixed shell 601. Since the sealing ring 603 fully matches the inner wall of the fixed shell 601, when the air inside the fixed shell 601 is extracted, the movable sealing ring 603 moves. When the movable sealing ring 603 moves, the spring 602 is stretched. Then the movable sealing ring 603 drives the three-point adaptive stabilizing assembly 700 to fold towards the surface of the circular steel pipe, thereby limiting the circular steel pipe during the process of negative pressure adsorption.

[0049] Referring to the accompanying drawings Figure 8 and Figure 9 The three-point adaptive stabilizing assembly 700 comprises a connecting shaft 701 fixedly connected to the top end of the movable sealing ring 603. The connecting shaft 701 is rotatably connected with a hinged rod 702 on both sides. The hinged rod 702 is rotatably connected with a locking piece 703 inside. The locking piece 703 is rotatably connected with the sealing sleeve 404. The side of the locking piece 703 close to the center of the sealing sleeve 404 is provided with a contact pad 704.

[0050] Through the design of the three-point self-adapting stabilizing assembly 700, when the mobile sealing ring 603 moves, the connecting shaft 701 will move, and since the connecting shaft 701 is rotationally connected with the locking piece 703 through the hinge rod 702, the hinge rod 702 will push the locking piece 703 and the contact pad 704 to fold towards the surface of the circular steel pipe, and Figure 6 that is, the state of the three-point self-adapting stabilizing assembly 700 after folding, and the original state pushes the locking piece 703 and the contact pad 704 to unfold outward, and then the surface of the contact pad 704 will contact the surface of the circular steel pipe, thereby being able to limit the circular steel pipe.

[0051] Referring to the accompanying Figure 2 and Figure 3 , the device further comprises an adjusting mechanism 800 arranged on the surface of the connecting pipe two 403, the adjusting mechanism 800 comprises a connecting disc 801 fixedly connected to the surface of the connecting pipe two 403, the top end of the connecting disc 801 is fixedly installed with three mounting blocks 802, the bottom end of the mounting plate 401 is rotationally connected with three hydraulic cylinders 803, the interiors of the three mounting blocks 802 are rotationally connected with three rotating blocks two 804, and the output shafts of the hydraulic cylinders 803 are connected with the rotating blocks two 804.

[0052] Through the design of the adjusting mechanism 800, when it is necessary to adjust the angle of the circular steel pipe, one of the hydraulic cylinders 803 can be started to pull the rotating block two 804 to move through the output shaft, and the other two hydraulic cylinders 803 will cooperate with the started hydraulic cylinder 803, thereby enabling the connecting disc 801 to drive the connecting pipe two 403 to rotate inside the bottom end of the connecting pipe one 402, and the connecting pipe two 403 can adjust the angle of the circular steel pipe, thereby enabling the adsorbing mechanism 400 to cooperate with the welding arm 200 to complete multi-angle welding, and the adjusting mechanism 800 adopts an existing multi-degree-of-freedom motion platform, and thus is not described in detail.

[0053] Referring to the accompanying Figure 3 and Figure 5 , the device further comprises a limiting assembly 900 arranged on the surface of the connecting pipe one 402, the limiting assembly 900 comprises a limiting groove 901 opened on the surface of the connecting pipe one 402, and the surface of the connecting pipe two 403 is fixedly installed with a connecting sliding block 902 located inside the limiting groove 901.

[0054] Through the design of the limiting assembly 900, when the adjusting mechanism 800 pulls the connecting pipe two 403 to rotate, the connecting pipe two 403 will drive the connecting sliding block 902 to slide inside the limiting groove 901, and the limiting groove 901 can limit the rotating connecting sliding block 902 and the connecting pipe two 403 to avoid the position from being deviated.

[0055] Referring to the accompanying Figure 6 and Figure 7The inner part of the sealing sleeve 404 is rotationally connected with the guide wheel 1001, and the hose around the connecting assembly 405 can move on the surface of the guide wheel 1001.

[0056] Through the design of the guide wheel 1001, when the electric push rod 406 pushes the connecting shell 407 and the suction cup 408 to move, the hose connected with the connecting shell 407 also moves, and the moving hose drives the guide wheel 1001 to rotate by the friction between the guide wheel 1001 and the hose, and the guide wheel 1001 can limit the hose.

[0057] Referring to the accompanying drawings Figures 1 to 10 The inner part of the fixed shell 601 is fixedly provided with a limiting ring 1101, and the surface of the limiting ring 1101 can be in contact with the bottom end of the moving sealing ring 603.

[0058] Through the design of the limiting ring 1101, when the moving sealing ring 603 moves on the surface of the limiting ring 1101, the limiting ring 1101 can block the moving sealing ring 603, so that the moving sealing ring 603 is prevented from being in contact with the bottom end of the inner wall of the fixed shell 601 and being reset.

[0059] Referring to the accompanying drawings Figure 6 And Figure 8 The three contact pads 704 are arc-shaped near one side of the circular steel pipe, and the contact pads 704 are made of rubber material.

[0060] Through the design of the contact pad 704, since the contact pad 704 is arc-shaped near one side of the circular steel pipe, the contact pad 704 can be in full contact with the surface of the circular steel pipe, so that the limiting effect is ensured, and the contact pad 704 is made of rubber material, so that the circular steel pipe can be protected, and damage to the surface of the circular steel pipe in the limiting process is avoided.

[0061] The application also provides a separation method of the automatic multi-angle steel welding device, which comprises the following steps.

[0062] S1, the operator can place the circular steel pipe on the surface of the conveying roller in the main body 100, then the conveying roller drives the steel plate to move to one side of the welding arm 200, at this time, the existing transportation tool or other tool is used to place the circular steel pipe at the bottom of the sealing sleeve 404, the driving assembly 300 is driven to make the sealing sleeve 404 cover the surface of the circular steel pipe, then the electric push rod 406 is driven to make the suction cup 408 contact with the surface of the circular steel pipe, and the vacuum pump 409 is driven to make the flexible bellows extract the air in the connecting shell 407, and then the suction cup 408 can adsorb and fix the circular steel pipe.

[0063] S2, when the vacuum pump 409 extracts the air inside the connecting shell 407, the air inside the fixed shell 601 will also be extracted by the air extraction pipe 604, then the movement of the sealing ring 603 will move inside the fixed shell 601, and when moving, the spring 602 will be stretched, then the movement of the sealing ring 603 will drive the connecting shaft 701 to move, the connecting shaft 701 will drive the articulated rod 702 to move, the articulated rod 702 will drive the locking piece 703 and the contact pad 704 to fold towards the surface of the circular steel pipe, thereby being able to limit the circular steel pipe;

[0064] S3, then the driving assembly 300 can be moved on the slide rail on one side of the main body 100, and when the angle of the circular steel pipe needs to be adjusted during movement, one of the hydraulic cylinders 803 can be driven, and then cooperated with the other two hydraulic cylinders 803, so that the output shaft of the hydraulic cylinder 803 can pull the connecting disc 801 to deviate, and the connecting disc 801 can adjust the position of the sealing sleeve 404 and the circular steel pipe, so that it can be welded at a suitable angle;

[0065] S4, the sealing sleeve 404 drives the circular steel pipe to move up again by driving the driving assembly 300, then the driving assembly 300 is slid on the slide rail on one side of the main body 100, and the circular steel pipe will move to the top end of the steel plate, then the driving assembly 300 is driven to move the circular steel pipe to the position to be welded, and then the welding arm 200 is driven to weld it.

[0066] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A steel automatic multi-angle welding device, comprising a main body (100), a welding arm (200) and a driving assembly (300), characterized in that, Also includes: The adsorption mechanism (400) is arranged on one side of the driving assembly (300), the adsorption mechanism (400) includes the mounting plate (401), the mounting plate (401) is arranged on one side of the driving assembly (300), the bottom end of the mounting plate (401) is provided with the connecting pipe one (402), the inside of the bottom end of the connecting pipe one (402) is rotatably connected with the connecting pipe two (403), the bottom end of the connecting pipe two (403) is provided with the sealing sleeve (404), the inside of the sealing sleeve (404) is provided with the connecting assembly (405), the electric push rod (406) is fixedly installed in the sealing sleeve (404), the output shaft of the electric push rod (406) is fixedly installed with the connecting shell (407), and the hose around the connecting assembly (405) is connected with the connecting shell (407), the side of the connecting shell (407) close to the center of the sealing sleeve (404) is fixedly installed with the suction cup (408), the top end of the mounting plate (401) is fixedly installed with the vacuum pump (409), and the flexible bellows connected with the vacuum pump (409) is connected with the connecting pipe two (403); The disassembly assembly (500) is arranged at the air inlet of the connecting assembly (405), and the sealing sleeve (404) can be fixed at the bottom end of the connecting pipe two (403), the disassembly assembly (500) includes the spiral pipe (501), the spiral pipe (501) is rotatably connected in the connecting assembly (405), the surface of the spiral pipe (501) is fixedly installed with the rotating block one (502), and the spiral pipe (501) is threadedly connected with the connecting pipe two (403); The driving mechanism (600) is arranged at the top end of the sealing sleeve (404), the driving mechanism (600) includes the fixed shell (601), the fixed shell (601) is fixedly connected to the top end of the sealing sleeve (404), the inside of the fixed shell (601) is provided with the movable sealing ring (603), the movable sealing ring (603) and the fixed shell (601) are elastically connected with the spring (602), and the connecting assembly (405) and the fixed shell (601) are connected through the air suction pipe (604); The three-point self-adaptive stable assembly (700) is arranged on the outer surface of the movable sealing ring (603), which can limit the circular steel pipe, the three-point self-adaptive stable assembly (700) includes the connecting shaft (701), the connecting shaft (701) is fixedly connected to the top end of the movable sealing ring (603), the both sides of the connecting shaft (701) are rotatably connected with the hinged rod (702), the inside of the hinged rod (702) is rotatably connected with the locking piece (703), and the locking piece (703) is rotatably connected with the sealing sleeve (404), the side of the locking piece (703) close to the center of the sealing sleeve (404) is provided with the contact pad (704).

2. The automatic multi-angle welding device for steel material according to claim 1, characterized in that, Also include the adjusting mechanism (800), it is arranged in the surface of connecting pipe two (403), the adjusting mechanism (800) includes the connecting disc (801), the connecting disc (801) is fixedly connected to the surface of connecting pipe two (403), the top of the connecting disc (801) is fixedly installed with three mounting blocks (802), the bottom of the mounting plate (401) is rotatably connected with three hydraulic cylinders (803), three the inside of mounting block (802) is rotatably connected with three rotating blocks two (804), and the output shaft of hydraulic cylinder (803) is connected with rotating block two (804).

3. The automatic multi-angle welding device for steel material according to claim 1, characterized in that, Also include the limiting component (900), it is arranged in the surface of connecting pipe one (402), the limiting component (900) includes the limiting slot (901), the limiting slot (901) is set up in the surface of connecting pipe one (402), the surface of connecting pipe two (403) is fixedly installed with the connecting sliding block (902) in the inside of limiting slot (901).

4. The automatic multi-angle welding device for steel material according to claim 1, characterized in that, The inside of the sealing sleeve (404) is rotatably connected with the guide wheel (1001), and the hose around the connecting assembly (405) can move on the surface of the guide wheel (1001).

5. The automatic multi-angle welding device for steel material according to claim 1, characterized in that, The inside of the fixed shell (601) is fixedly installed with a limiting ring (1101), and the surface of the limiting ring (1101) can contact the bottom of the movable sealing ring (603).

6. The automatic multi-angle welding device for steel material according to claim 1, characterized in that, Three the side of the contact pad (704) close to the circular steel pipe is arc-shaped design, and the contact pad (704) is made of rubber material.

7. The method according to any one of claims 2 to 6, wherein the steel automatic multi-angle welding apparatus is characterized by, The welding method comprises the following steps: S1, the steel plate is placed on the surface of the conveying roller, and is moved to one side of the welding arm (200), the drive assembly (300) is started to make the sealing sleeve (404) cover the surface of the circular steel pipe, then the electric push rod (406) is driven to make the suction cup (408) contact the surface of the circular steel pipe, and the vacuum pump (409) is used to extract the air in the connecting shell (407), and the circular steel pipe is fixed by using negative pressure; S2, while the connecting assembly (405) extracts the air in the connecting shell (407), the air extraction pipe (604) also extracts the air in the fixed shell (601), then the movable sealing ring (603) moves the connecting shaft (701), and the hinged rod (702) drives the locking piece (703) and the contact pad (704) to fold towards the surface of the circular steel pipe, thereby limiting the circular steel pipe; S3, make the drive assembly (300) move on the slide rail on one side of the main body (100), adjust the angle of the circular steel pipe when moving, drive one of the hydraulic cylinders (803) to make its output shaft pull the rotating block two (804) to move, and the other two hydraulic cylinders (803) cooperate with the activated hydraulic cylinder (803), so that the connecting disc (801) drives the connecting pipe two (403) to rotate in the inside of the bottom of the connecting pipe one (402), the connecting pipe two (403) can adjust the angle of the circular steel pipe, so that it is suitable for multi-angle welding of the welding arm (200). S4, make the driving assembly (300) in the main body (100) side of the slide rail surface movement, driving assembly (300) will lead to the adsorption mechanism (400) and circular steel pipe to the position to be welded, and make the circular steel pipe with steel plate contact, using the mechanical hand of welding arm (200) welding.

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