Steel pipe welding device suitable for constructional engineering

Abstract

The invention relates to the technical field of building steel pipe welding machining, and discloses a steel pipe welding device suitable for constructional engineering, which comprises a mounting table, a mounting groove is formed in the mounting table, and two first bidirectional threaded rods are rotatably connected in the mounting groove; according to the steel pipe welding device suitable for the constructional engineering, two steel pipes are placed in the mounting ring, then the steel pipes are clamped and fixed through a clamping mechanism in the mounting ring, and then the steel pipes are driven to move, so that the steel pipes are welded to the mounting ring, and the steel pipes are welded to the mounting ring. Then the steel pipe groove grinding mechanism is used for automatically grinding grooves of the two steel pipes, the welding mechanism is used for automatically welding the steel pipes after grinding is completed, and meanwhile, the welded weld joints are automatically ground, so that groove grinding and welding integrated full-automatic machining of the steel pipes of different sizes is achieved; and the welding efficiency and the welding effect of the steel pipe are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of building steel pipe welding processing, and in particular to a steel pipe welding device suitable for building engineering. Background Art

[0002] Steel pipe has a hollow cross-section and its length is much larger than its diameter or circumference. It is divided into round, square, rectangular and special-shaped steel pipes according to the cross-sectional shape; it is divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe according to the material; it is divided into steel pipes for pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc. according to the use; it is divided into seamless steel pipes and welded steel pipes according to the production process, among which seamless steel pipes are divided into hot-rolled and cold-rolled (drawn), and welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes; and the steel pipes used in construction projects are often not long enough, and professional welders are required to weld the two sections of steel pipes.

[0003] At present, when welding steel pipes used in construction projects, a clamping mechanism is usually used to clamp and fix the steel pipes, and then the staff uses a handheld grinder to grind the groove of the end face of the steel pipe. After grinding, the two steel pipes are then butted, and then the steel pipes are welded with a handheld welding gun head. After welding, the weld is further ground. This welding method is relatively cumbersome to operate, resulting in low welding efficiency for steel pipes. At the same time, when grinding the groove, it is difficult to control the accuracy of the grinded groove by manual grinding, resulting in poor grinding effect of the groove, thereby affecting the subsequent welding effect of the steel pipe. Summary of the invention

[0004] The purpose of the present invention is to provide a steel pipe welding device suitable for construction engineering, so as to solve the shortcomings of the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A steel pipe welding device suitable for construction engineering comprises a mounting platform, a mounting groove is provided on the mounting platform, two first bidirectional threaded rods are rotatably connected in the mounting groove, the two first bidirectional threaded rods are connected by a transmission wheel and a transmission belt, one end of one of the first bidirectional threaded rods is fixedly connected to a first motor through a coupling, a transmission block is threadedly matched on the outer surface of the first bidirectional threaded rod, a first mounting plate is fixedly connected to the top of the transmission block, a mounting ring is rotatably connected to the first mounting plate, a clamping mechanism is arranged on the mounting ring, and the clamping mechanism is used to clamp and fix the steel pipe; a driving mechanism connected to the mounting platform is transmission-connected to one side of the mounting ring, and the driving mechanism is used to drive the mounting ring to rotate;

[0007] The top of the mounting platform is fixedly connected to a mounting frame, a first electric telescopic rod is fixedly connected inside the mounting frame, a steel pipe bevel grinding mechanism is fixedly connected to the bottom end of the first electric telescopic rod, the steel pipe bevel grinding mechanism is used to perform bevel grinding on one side of the steel pipe, and a welding mechanism is arranged inside the mounting frame, the welding mechanism is used to weld the steel pipe.

[0008] As a further solution of the present invention: the steel pipe groove grinding mechanism includes a transmission frame fixedly connected to the first electric telescopic rod, two transmission shafts rotatably connected in the transmission frame, a second mounting plate fixedly connected between the two transmission shafts via a connecting block, a second motor fixedly connected to the second mounting plate, an output end of the second motor fixedly connected to the first rotating shaft via a coupling, an outer surface of the first rotating shaft is connected to two second rotating shafts rotatably connected to the second mounting plate via a transmission wheel and a transmission belt, one end of the second rotating shaft is fixedly connected to the first grinding disc, the other end of the second rotating shaft is fixedly connected to the second grinding disc, and the outer surface of the transmission shaft is transmission-connected to the first transmission mechanism connected to the transmission frame.

[0009] As a further solution of the present invention: the first transmission mechanism includes a second electric telescopic rod fixedly connected to the transmission frame, one end of the second electric telescopic rod is fixedly connected to the first transmission rack, and one side of the first transmission rack is meshedly connected to the first transmission gear fixedly sleeved on the transmission shaft.

[0010] As a further solution of the present invention: the welding mechanism includes a third motor fixedly connected to the mounting frame, the output end of the third motor is fixedly connected to a second bidirectional threaded rod rotatably connected to the mounting frame through a coupling, the outer surface of the second bidirectional threaded rod is threadedly fitted with two third mounting plates, the third mounting plates are slidably connected to a guide rod fixedly connected to the mounting frame, one side of one of the third mounting plates is fixedly connected to a welding gun head, and the other third mounting plate is provided with a knocking mechanism.

[0011] As a further solution of the present invention: the knocking mechanism includes an installation box fixedly connected to the third installation plate, a fourth motor is fixedly connected inside the installation box, an output end of the fourth motor is fixedly connected to the third rotating shaft via a coupling, a cam is fixedly sleeved on the outer surface of the third rotating shaft, a transmission plate slidably connected to the installation box is slidably connected to the outer surface of the cam, a knocking hammer slidably connected to the installation box is fixedly connected to one side of the transmission plate, and a spring fixedly connected to the installation box is fixedly connected to one side of the transmission plate.

[0012] As a further solution of the present invention: the clamping mechanism includes a functional cavity opened on the mounting ring, a transmission gear ring is rotatably connected in the functional cavity, the inner surface of the transmission gear ring is meshingly connected with a plurality of second transmission gears rotatably connected to the functional cavity, the outer surface of the second transmission gear is meshingly connected with the second transmission rack, one side of the second transmission rack is fixedly connected with a transmission column slidably connected to the mounting ring, one end of the transmission column is fixedly connected with a clamping plate, one side of the clamping plate is fixedly connected with a rubber friction pad, and the inner surface of the transmission gear ring is transmission-connected with the second transmission mechanism connected to the mounting ring.

[0013] As a further solution of the present invention: the second transmission mechanism includes a third electric telescopic rod fixedly connected to the mounting ring, one end of the third electric telescopic rod is fixedly connected to a third transmission rack slidably connected to the mounting ring, one side of the third transmission rack is meshedly connected to a third transmission gear, the middle of the third transmission gear is fixedly sleeved with a fourth rotating shaft rotatably connected to the mounting ring, and the outer surface of the fourth rotating shaft is fixedly sleeved with a fourth transmission gear meshedly connected to the transmission gear ring.

[0014] As a further solution of the present invention: the driving mechanism includes a transmission ring fixedly connected to the mounting ring, a fifth motor is fixedly connected to one side of the mounting platform, the output end of the fifth motor is fixedly connected to a fifth rotating shaft rotatably connected to the mounting platform through a coupling, the outer surface of the fifth rotating shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is meshingly connected with a second gear fixedly sleeved with the transmission ring.

[0015] Beneficial effects of the present invention:

[0016] (1) Two steel pipes are placed in the installation ring, and then the steel pipes are clamped and fixed by the clamping mechanism in the installation ring, and then the steel pipes are driven to move, and then the two steel pipes are automatically beveled by the steel pipe bevel grinding mechanism. After the grinding is completed, the steel pipes are automatically welded by the welding mechanism, and the welds after welding are automatically polished, so as to realize the bevel grinding and welding of steel pipes of different sizes. Fully automatic processing is realized, which greatly improves the welding efficiency and welding effect of the steel pipes.

[0017] (2) The transmission frame is driven downward by the first electric telescopic rod, and then the transmission shaft and the mounting plate are driven to rotate by the first transmission mechanism in the transmission frame, so as to adjust the angle of the first grinding disc, and then the steel pipe is driven to rotate by the driving mechanism to grind the steel pipe groove. At the same time, during grinding, the second mounting plate is continuously driven to rotate, so that the first grinding disc and the steel pipe end face generate a certain extrusion force to realize the first grinding disc to grind the steel pipe end face obliquely, so that the end faces of the two steel pipes are evenly ground into a groove of a certain angle, thereby realizing automatic and even grinding of the end faces of the two steel pipes at the same time, which greatly improves the efficiency and grinding effect of the steel pipe groove grinding.

[0018] (3) After the steel pipe groove is polished, the welding mechanism is used to realize the fully automatic welding of the butt joints of two steel pipes of different diameters, which greatly improves the efficiency of steel pipe welding and the applicability of the welding device. After welding, the weld skin at the weld is automatically knocked and cleaned by the knocking mechanism. At the same time, the residual stress generated at the weld during the welding process is eliminated in time by knocking at the weld, and the influence of the residual stress at the weld on the weld is reduced. After the knocking is completed, the second grinding disc is driven perpendicular to the weld, and then the weld is polished by the second grinding disc to make the weld smooth, which is convenient for the subsequent spraying of paint for anti-corrosion of the steel pipe weld.

[0019] (4) The steel pipe is placed in the installation circle, and then the third electric telescopic rod drives the third transmission rack to move, the third transmission rack drives the third transmission gear to rotate, the third transmission gear drives the fourth rotating shaft to rotate, the fourth rotating shaft drives the transmission ring gear to rotate through the fourth transmission gear, the transmission ring gear drives the second transmission gear to rotate, the second transmission gear drives the second transmission rack to move, the second transmission rack drives the transmission column and the clamping plate to move, the clamping plate drives the rubber friction pad to clamp and fix the steel pipe, thereby achieving stable clamping and fixation of steel pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a first stereogram of the external structure of the present invention;

[0022] Figure 2 is a second stereoscopic diagram of the external structure of the present invention;

[0023] Figure 3 is a third stereogram of the external structure of the present invention;

[0024] Figure 4 It is a three-dimensional diagram of the internal structure of the present invention;

[0025] Figure 5 It is a three-dimensional diagram of the external structure of the groove grinding mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional diagram of the internal structure of the installation box of the present invention;

[0027] Figure 7 is a side view of the internal structure of the mounting ring of the present invention;

[0028] Figure 8 The present invention Figure 1 A magnified view of middle;

[0029] Fig. 9 The present invention Figure 3 Enlarged view of middle B;

[0030] Fig.10 The present invention Figure 4 Enlarged view of C in the middle.

[0031] In the figure: 1, mounting table; 2, mounting groove; 3, first bidirectional threaded rod; 4, first motor; 5, transmission block; 6, first mounting plate; 7, mounting ring; 8, mounting frame; 9, first electric telescopic rod; 11, transmission frame; 12, transmission shaft; 13, second mounting plate; 14, second motor; 15, first rotating shaft; 16, second rotating shaft; 17, first grinding disc; 18, second grinding disc; 21, second electric telescopic rod; 22, first transmission rack; 23, first transmission gear; 31, third motor; 32, second bidirectional threaded rod; 33, third mounting plate; 34, guide rod; 35 , welding gun head; 41, installation box; 42, fourth motor; 43, third rotating shaft; 44, cam; 45, transmission plate; 46, knock hammer; 47, spring; 51, functional chamber; 52, transmission gear ring; 53, second transmission gear; 54, second transmission rack; 55, transmission column; 56, clamping plate; 57, rubber friction pad; 61, third electric telescopic rod; 62, third transmission rack; 63, third transmission gear; 64, fourth rotating shaft; 65, fourth transmission gear; 71, transmission ring; 72, fifth motor; 73, fifth rotating shaft; 74, first gear; 75, second gear. DETAILED DESCRIPTION

[0032] 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.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 10 As shown, the present invention is a steel pipe welding device suitable for construction engineering, comprising a mounting platform 1, a mounting groove 2 is provided on the mounting platform 1, two first bidirectional threaded rods 3 are rotatably connected in the mounting groove 2, the two first bidirectional threaded rods 3 are connected by a transmission wheel and a transmission belt, one end of one of the first bidirectional threaded rods 3 is fixedly connected to a first motor 4 through a coupling, the first motor 4 is controlled by PLC programming, and the first motor 4 can be controlled to rotate forward and backward and rotate at an angle, the outer surface of the first bidirectional threaded rod 3 is threadedly matched with a transmission block 5, the top of the transmission block 5 is fixedly connected to a first mounting plate 6, the first mounting plate 6 is rotatably connected to a mounting ring 7, the mounting ring 7 is provided with a clamping mechanism, and the clamping mechanism is used to clamp and fix the steel pipe; one side of the mounting ring 7 is transmission-connected to a driving mechanism connected to the mounting platform 1, and the driving mechanism is used to drive the mounting ring 7 to rotate;

[0035] The top of the mounting platform 1 is fixedly connected to a mounting frame 8, a first electric telescopic rod 9 is fixedly connected inside the mounting frame 8, a steel pipe groove grinding mechanism is fixedly connected to the bottom end of the first electric telescopic rod 9, the steel pipe groove grinding mechanism is used to perform groove grinding on one side of the steel pipe, and a welding mechanism is arranged inside the mounting frame 8, the welding mechanism is used to weld the steel pipe.

[0036] The driving mechanism includes a transmission ring 71 fixedly connected to the mounting ring 7, and a fifth motor 72 is fixedly connected to one side of the mounting platform 1. The fifth motor 72 is controlled by PLC programming, and the fifth motor 72 can be controlled to rotate forward and reverse and rotate at an angle. The output end of the fifth motor 72 is fixedly connected to a fifth rotating shaft 73 rotatably connected to the mounting platform 1 through a coupling, and the outer surface of the fifth rotating shaft 73 is fixedly sleeved with a first gear 74, and the outer surface of the first gear 74 is meshingly connected with a second gear 75 fixedly sleeved with the transmission ring 71.

[0037] The fifth motor 72 drives the fifth shaft 73 to rotate, and the fifth shaft 73 drives the transmission ring 71 to rotate through the first gear 74 and the second gear 75 .

[0038] By placing two steel pipes into the mounting ring 7, and then clamping and fixing the steel pipes through the clamping mechanism in the mounting ring 7, the first motor 4 drives the first bidirectional threaded rod 3 to move, and the first bidirectional threaded rod 3 drives the first mounting plates 6 and the mounting ring 7 on both sides of the mounting platform 1 to approach each other, at this time, the second gear 75 on the transmission ring 71 slides on the first gear 74, thereby driving the two steel pipes to approach each other, and after moving them to a certain extent, the mounting ring 7 is then driven by the driving mechanism to rotate, and the mounting ring 7 drives the steel pipe to rotate, and at the same time, The steel pipe groove grinding mechanism cooperates to grind the groove of one end of the steel pipe. When the grinding is completed, the two steel pipes are then driven close to each other to make the two steel pipes butt joint. At the same time, the driving mechanism is started to drive the steel pipe to rotate, and then the connection between the two steel pipes is welded by the welding mechanism. After welding is completed, the steel pipe groove grinding mechanism is used to grind the welding part of the steel pipe to make the welding part smooth, which is convenient for subsequent painting and anti-corrosion of the welding part, thereby realizing the integrated automatic processing of groove grinding and welding of the steel pipe, which greatly improves the welding efficiency and welding effect of the steel pipe.

[0039] Embodiment 2

[0040] Based on Example 1, please refer to Figure 3 Figure 4 Figure 5 Fig. 9 and Fig.10 As shown, the steel pipe groove grinding mechanism includes a transmission frame 11 fixedly connected to the first electric telescopic rod 9, two transmission shafts 12 are rotatably connected in the transmission frame 11, a second mounting plate 13 is fixedly connected between the two transmission shafts 12 through a connecting block, a second motor 14 is fixedly connected to the second mounting plate 13, the second motor 14 is controlled by PLC programming, and the second motor 14 can be controlled to rotate forward and backward and rotate at an angle, the output end of the second motor 14 is fixedly connected to the first rotating shaft 15 through a coupling, the outer surface of the first rotating shaft 15 is connected to two second rotating shafts 16 rotatably connected to the second mounting plate 13 through a transmission wheel and a transmission belt, one end of the second rotating shaft 16 is fixedly connected to a first grinding disc 17, the other end of the second rotating shaft 16 is fixedly connected to a second grinding disc 18, and the outer surface of the transmission shaft 12 is transmission-connected to the first transmission mechanism connected to the transmission frame 11.

[0041] The first transmission mechanism includes a second electric telescopic rod 21 fixedly connected to the transmission frame 11 , one end of the second electric telescopic rod 21 is fixedly connected to a first transmission rack 22 , and one side of the first transmission rack 22 is meshedly connected to a first transmission gear 23 fixedly sleeved with the transmission shaft 12 .

[0042] The transmission frame 11 moves downward through the first electric telescopic rod 9, and then the first transmission rack 22 is driven to move through the second electric telescopic rod 21, the first transmission rack 22 drives the first transmission gear 23 to rotate, the first transmission gear 23 drives the transmission shaft 12 to rotate, the transmission shaft 12 drives the second mounting plate 13 to rotate, the second mounting plate 13 drives the second rotating shaft 16 to rotate, thereby driving the grinding disc on the second rotating shaft 16 to rotate a certain angle, so that the first grinding disc 17 fits the end of the steel pipe, and then starts The driving mechanism is driven, and the driving mechanism drives the mounting ring 7 and the steel pipe to rotate. At this time, the first grinding disc 17 grinds the end face of the steel pipe. At the same time, during grinding, the second mounting plate 13 continues to be driven to rotate, so that the first grinding disc 17 and the end face of the steel pipe generate a certain extrusion force to achieve the first grinding disc 17 to grind the end face of the steel pipe obliquely, so that the end faces of the two steel pipes are evenly ground into a groove with a certain angle, thereby achieving automatic and uniform grinding of the end faces of the two steel pipes at the same time, greatly improving the efficiency and grinding effect of grinding the groove of the steel pipe.

[0043] Embodiment 3

[0044] Based on Example 2, please refer to Figure 3 , Figure 6 Fig. 9 and Fig.10 As shown, the welding mechanism includes a third motor 31 fixedly connected to the mounting frame 8. The third motor 31 is controlled by PLC programming, and can control the third motor 31 to rotate forward and backward and at a rotation angle. The output end of the third motor 31 is fixedly connected to a second bidirectional threaded rod 32 rotatably connected to the mounting frame 8 through a coupling. The outer surface of the second bidirectional threaded rod 32 is threadedly matched with two third mounting plates 33. The third mounting plates 33 are slidably connected to a guide rod 34 fixedly connected to the mounting frame 8. A welding gun head 35 is fixedly connected to one side of one of the third mounting plates 33. The welding gun head 35 is connected to an external welding machine. It is a prior art and therefore no further elaboration is made here. A knocking mechanism is provided on the other third mounting plate 33.

[0045] When the grinding is completed, the steel pipe groove grinding mechanism is driven to move upward by the first electric telescopic rod 9, and then the two steel pipes are driven to abut against each other, so that the grinded steel pipes are butted, and then the second bidirectional threaded rod 32 is driven to rotate by the third motor 31, and the second bidirectional threaded rod 32 drives the two third mounting plates 33 to approach each other, and the third mounting plate 33 and the welding gun head 35 are driven to move to the welding position according to the diameter of the steel pipe, and then the steel pipe is welded by the welding gun head 35. At the same time, the steel pipe is driven to rotate by starting the driving mechanism during welding, thereby realizing fully automatic welding of the butt joints of two steel pipes of different diameters, which greatly improves the efficiency of steel pipe welding and also improves the applicability of the welding device.

[0046] The knocking mechanism includes an installation box 41 fixedly connected to the third installation plate 33, a fourth motor 42 is fixedly connected inside the installation box 41, the fourth motor 42 is controlled by PLC programming, and the fourth motor 42 can be controlled to rotate forward and reverse and rotate at an angle, the output end of the fourth motor 42 is fixedly connected to the third rotating shaft 43 through a coupling, the outer surface of the third rotating shaft 43 is fixedly sleeved with a cam 44, the outer surface of the cam 44 is slidably connected to a transmission plate 45 slidably connected to the installation box 41, one side of the transmission plate 45 is fixedly connected to a knocking hammer 46 slidably connected to the installation box 41, and one side of the transmission plate 45 is fixedly connected to a spring 47 fixedly connected to the installation box 41.

[0047] When welding is completed, the welding gun head 35 stops working and continues to drive the steel pipe to rotate. While rotating, the third rotating shaft 43 is driven to rotate by the fourth motor 42, and the third rotating shaft 43 drives the cam 44 to rotate. The cam 44 drives the transmission plate 45 to slide back and forth in the installation box 41. At the same time, the transmission plate 45 drives the knocking hammer 46 to move back and forth. The knocking hammer 46 knocks on the welding part of the steel pipe to knock off the weld skin after welding, thereby realizing automatic cleaning of the weld skin. At the same time, by knocking on the welding part, the residual stress generated at the welding part during the welding process is promptly eliminated, and the influence of the residual stress at the welding part on the welding part is reduced, thereby further improving the steel pipe welding process. The welding effect of the pipe is achieved by: when the knocking is completed, the transmission shaft 12 and the second mounting plate 13 are driven to rotate through the first transmission mechanism in the transmission frame 11, so that the second mounting plate 13 is rotated to be perpendicular to the ground. At this time, the second grinding disc 18 on the second rotating shaft 16 on the second mounting plate 13 is rotated to just above the steel pipe welding position, and then the transmission frame 11 is driven downward by the first electric telescopic rod 9, and the second motor 14 is started to drive the second rotating shaft 16 and the second grinding disc 18 to rotate. The second grinding disc 18 grinds the steel pipe welding position and drives the steel pipe to rotate at the same time, thereby realizing the grinding of the steel pipe welding position, which is convenient for the subsequent painting and anti-corrosion of the steel pipe welding position.

[0048] Embodiment 4

[0049] Based on Example 1, please refer to Figure 1 Figure 7 and Figure 8 As shown, the clamping mechanism includes a functional cavity 51 opened on the mounting ring 7, a transmission gear ring 52 is rotatably connected in the functional cavity 51, the inner surface of the transmission gear ring 52 is meshingly connected with a plurality of second transmission gears 53 rotatably connected to the functional cavity 51, the outer surface of the second transmission gear 53 is meshingly connected with a second transmission rack 54, one side of the second transmission rack 54 is fixedly connected with a transmission column 55 slidably connected to the mounting ring 7, one end of the transmission column 55 is fixedly connected with a clamping plate 56, one side of the clamping plate 56 is fixedly connected with a rubber friction pad 57, and the inner surface of the transmission gear ring 52 is transmission-connected with the second transmission mechanism connected to the mounting ring 7.

[0050] The second transmission mechanism includes a third electric telescopic rod 61 fixedly connected to the mounting ring 7, one end of the third electric telescopic rod 61 is fixedly connected to a third transmission rack 62 slidably connected to the mounting ring 7, one side of the third transmission rack 62 is meshedly connected to a third transmission gear 63, the middle of the third transmission gear 63 is fixedly sleeved with a fourth rotating shaft 64 rotatably connected to the mounting ring 7, and the outer surface of the fourth rotating shaft 64 is fixedly sleeved with a fourth transmission gear 65 meshedly connected to the transmission gear ring 52.

[0051] By placing the steel pipe into the mounting circle 7, and then driving the third transmission rack 62 to move through the third electric telescopic rod 61, the third transmission rack 62 drives the third transmission gear 63 to rotate, the third transmission gear 63 drives the fourth rotating shaft 64 to rotate, the fourth rotating shaft 64 drives the transmission ring gear 52 to rotate through the fourth transmission gear 65, the transmission ring gear 52 drives the second transmission gear 53 to rotate, the second transmission gear 53 drives the second transmission rack 54 to move, the second transmission rack 54 drives the transmission column 55 and the clamping plate 56 to move, the clamping plate 56 drives the rubber friction pad 57 to clamp and fix the steel pipe, thereby achieving stable clamping and fixation of steel pipes of different diameters.

[0052] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A steel pipe welding device suitable for construction engineering, comprising a mounting platform (1), characterized in that: The mounting platform (1) is provided with a mounting groove (2), and two first bidirectional threaded rods (3) are rotatably connected in the mounting groove (2). The two first bidirectional threaded rods (3) are connected to each other through a transmission wheel and a transmission belt, and one end of one of the first bidirectional threaded rods (3) is fixedly connected to a first motor (4) through a coupling, and a transmission block (5) is threadedly matched on the outer surface of the first bidirectional threaded rod (3), and a first mounting plate (6) is fixedly connected to the top of the transmission block (5), and a mounting ring (7) is rotatably connected to the first mounting plate (6), and a clamping mechanism is provided on the mounting ring (7), and the clamping mechanism is used to clamp and fix the steel pipe; one side of the mounting ring (7) is connected to a driving mechanism connected to the mounting platform (1), and the driving mechanism is used to drive the mounting ring (7) to rotate; The top of the mounting platform (1) is fixedly connected to a mounting frame (8), a first electric telescopic rod (9) is fixedly connected inside the mounting frame (8), a steel pipe groove grinding mechanism is fixedly connected to the bottom end of the first electric telescopic rod (9), the steel pipe groove grinding mechanism is used to perform groove grinding on one side of the steel pipe, and a welding mechanism is arranged inside the mounting frame (8), the welding mechanism is used to weld the steel pipe.

2. A steel pipe welding device suitable for construction engineering according to claim 1, characterized in that: The steel pipe groove grinding mechanism comprises a transmission frame (11) fixedly connected to a first electric telescopic rod (9); two transmission shafts (12) are rotatably connected in the transmission frame (11); a second mounting plate (13) is fixedly connected between the two transmission shafts (12) via a connecting block; a second motor (14) is fixedly connected to the second mounting plate (13); an output end of the second motor (14) is fixedly connected to a first rotating shaft (15) via a coupling; an outer surface of the first rotating shaft (15) is connected to two second rotating shafts (16) rotatably connected to the second mounting plate (13) via a transmission wheel and a transmission belt; one end of the second rotating shaft (16) is fixedly connected to a first grinding disc (17); the other end of the second rotating shaft (16) is fixedly connected to a second grinding disc (18); and the outer surface of the transmission shaft (12) is connected to a first transmission mechanism connected to the transmission frame (11).

3. A steel pipe welding device suitable for construction engineering according to claim 2, characterized in that: The first transmission mechanism comprises a second electric telescopic rod (21) fixedly connected to the transmission frame (11); one end of the second electric telescopic rod (21) is fixedly connected to a first transmission rack (22); one side of the first transmission rack (22) is meshingly connected to a first transmission gear (23) fixedly sleeved on the transmission shaft (12).

4. A steel pipe welding device suitable for construction engineering according to claim 1, characterized in that: The welding mechanism comprises a third motor (31) fixedly connected to a mounting frame (8); an output end of the third motor (31) is fixedly connected to a second bidirectional threaded rod (32) rotatably connected to the mounting frame (8) via a coupling; an outer surface of the second bidirectional threaded rod (32) is threadedly fitted with two third mounting plates (33); a guide rod (34) fixedly connected to the mounting frame (8) is slidably connected to the third mounting plate (33); a welding gun head (35) is fixedly connected to one side of one of the third mounting plates (33); and a knocking mechanism is arranged on the other of the third mounting plates (33).

5. A steel pipe welding device suitable for construction engineering according to claim 4, characterized in that: The knocking mechanism comprises an installation box (41) fixedly connected to a third installation plate (33); a fourth motor (42) is fixedly connected inside the installation box (41); an output end of the fourth motor (42) is fixedly connected to a third rotating shaft (43) via a coupling; a cam (44) is fixedly sleeved on the outer surface of the third rotating shaft (43); a transmission plate (45) slidably connected to the installation box (41) is slidably connected to the outer surface of the cam (44); a knocking hammer (46) slidably connected to the installation box (41) is fixedly connected to one side of the transmission plate (45); and a spring (47) fixedly connected to the installation box (41) is fixedly connected to one side of the transmission plate (45).

6. A steel pipe welding device suitable for construction engineering according to claim 1, characterized in that: The clamping mechanism comprises a functional cavity (51) provided on a mounting ring (7), a transmission gear ring (52) being rotatably connected in the functional cavity (51), a plurality of second transmission gears (53) being meshingly connected to the inner surface of the transmission gear ring (52) being rotatably connected to the functional cavity (51), an outer surface of the second transmission gear (53) being meshingly connected to a second transmission rack (54), a transmission column (55) being slidably connected to the mounting ring (7) being fixedly connected to one side of the second transmission rack (54), a clamping plate (56) being fixedly connected to one end of the transmission column (55), a rubber friction pad (57) being fixedly connected to one side of the clamping plate (56), and a second transmission mechanism connected to the mounting ring (7) being transmission-connected to the inner surface of the transmission gear ring (52).

7. A steel pipe welding device suitable for construction engineering according to claim 6, characterized in that: The second transmission mechanism comprises a third electric telescopic rod (61) fixedly connected to the mounting ring (7); one end of the third electric telescopic rod (61) is fixedly connected to a third transmission rack (62) slidably connected to the mounting ring (7); one side of the third transmission rack (62) is meshingly connected to a third transmission gear (63); a fourth rotating shaft (64) rotatably connected to the mounting ring (7) is fixedly sleeved in the middle of the third transmission gear (63); and a fourth transmission gear (65) meshingly connected to the transmission gear ring (52) is fixedly sleeved on the outer surface of the fourth rotating shaft (64).

8. A steel pipe welding device suitable for construction engineering according to claim 1, characterized in that: The driving mechanism comprises a transmission ring (71) fixedly connected to the mounting ring (7); a fifth motor (72) is fixedly connected to one side of the mounting platform (1); an output end of the fifth motor (72) is fixedly connected to a fifth rotating shaft (73) rotatably connected to the mounting platform (1) via a coupling; a first gear (74) is fixedly sleeved on the outer surface of the fifth rotating shaft (73); and a second gear (75) fixedly sleeved on the outer surface of the first gear (74) is meshingly connected to the transmission ring (71).

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