Large-diameter steel pipe welding device

Abstract

The utility model discloses a large-diameter steel pipe welding device, and particularly relates to the technical field of steel pipe machining, the large-diameter steel pipe welding device comprises a bottom plate, two base assemblies are fixedly installed on each of the two sides of the top surface of the bottom plate, a main body assembly is fixedly installed in the middle of the top surface of the bottom plate, and a butt joint bearing assembly is arranged at the top of each base assembly; according to the large-diameter steel pipe welding device, butt joint of steel pipes needing to be welded can be facilitated by arranging the butt joint bearing assembly, the butt joint efficiency and the butt joint stability are effectively improved, meanwhile, by arranging the multiple welding heads and controlling the welding assembly to rotate, the welding efficiency is improved, and the welding efficiency is improved. According to the steel pipe welding device, all-directional rapid welding can be conducted on the connecting position of a steel pipe, the welding efficiency is effectively improved, workers do not need to manually control the steel pipe to turn over for welding, the practicability is higher, further, a butt joint bearing assembly can be conveniently replaced, the steel pipes with different calibers can be conveniently borne, and the adaptability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing, in particular to a large-diameter steel pipe welding device. Background Art

[0002] Steel pipe is a steel material with a hollow cross-section whose length is much greater than its diameter or circumference. Steel pipe is not only used to transport fluids and powdered solids, exchange heat energy, and manufacture mechanical parts and containers. Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. Generally, steel pipes are processed by welding.

[0003] The existing patent application number is 202022815042.4, which discloses a welding device for large-diameter steel pipes, which belongs to the technical field of steel pipe body processing and production. The key points of its technical solution include a steel pipe body and a welding assembly arranged on the outside of the steel pipe body, a protective frame is installed on the top of the welding assembly, and a workbench is detachably fixed at the bottom of the protective frame, a stabilizing foot is installed at the bottom of the workbench, a nut sleeve is installed inside the workbench, a threaded rod is installed on the inside of the nut sleeve, a bearing is installed on the end of the threaded rod away from the nut sleeve, the threaded rod passes through and connects the nut sleeve and the workbench, a bearing seat is installed on the top of the bearing, a lead screw is installed inside the bearing seat, a ball nut seat is installed on the annular side of the lead screw, a linkage seat is connected to the top of the ball nut seat, and a bracket is fixed on the top of the linkage seat. The utility model reduces the difficulty of operation, flexibly adjusts the height of the steel pipe for butt welding, and reduces welding errors.

[0004] However, the welding device still has some shortcomings in actual use. For example, when welding, the welding assembly is arranged above the welding point, so the steel pipe can only be rotated for welding, which not only easily leads to dislocation of the steel pipe during rotation, but also makes it inconvenient to rotate large-mouthed steel pipes, and the welding efficiency of one welding head is relatively low. At the same time, the supporting seat of the welding device is not convenient to disassemble, so its adaptability is poor when welding steel pipes of different diameters. Utility Model Content

[0005] The utility model aims to provide a large-diameter steel pipe welding device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a large-diameter steel pipe welding device, comprising a bottom plate, two base assemblies are fixedly installed on both sides of the top surface of the bottom plate, a main body assembly is fixedly installed in the middle of the top surface of the bottom plate, a docking bearing assembly is arranged on the top of a plurality of the base assemblies, and a welding assembly is rotatably installed in the main body assembly;

[0007] The base assembly includes an arched bracket, a docking slot is provided on the top surface of the arched bracket, an embedded vertical plate is fixedly installed in the middle of both sides of the docking slot, a threaded hole and an insertion port are provided on the top of the front of the embedded vertical plate from top to bottom, a fixed plug-in plate is inserted in the insertion port, a baffle is fixedly installed on the front of the fixed plug-in plate, a threaded rod is rotatably installed on the front of the baffle, and one end of the threaded rod is threadedly connected to the threaded hole;

[0008] The docking bearing assembly comprises a docking insert, both sides of which are provided with a docking vertical groove, and a bearing sleeve is fixedly installed in the middle of the top surface of the docking insert;

[0009] The main body assembly includes a mounting sleeve, the annular inner wall of the mounting sleeve is provided with an annular groove, the top of the mounting sleeve is provided with a gear groove, and the gear groove is communicated with the inside of the annular groove;

[0010] The welding assembly includes a sleeve, a plurality of welding heads are fixedly installed on the inner ring of the sleeve, an embedded slip ring is fixedly sleeved on the outer wall of the sleeve, a plurality of gear teeth are fixedly installed on the outer wall of the embedded slip ring, a plurality of gear teeth are meshedly connected with gears at the tops of the gears, a rotating motor is fixedly connected to the front side of the gears, and the embedded slip ring is rotatably installed in an annular groove.

[0011] Preferably, the rotating motor is fixedly mounted on the top of the front side of the mounting sleeve, and the gear is rotatably mounted in the gear groove.

[0012] Preferably, one end of the output shaft of the rotating motor extends into the gear groove and is fixedly connected to the center of the front face of the gear.

[0013] Preferably, a guide sleeve is fixedly mounted on the front of the bearing sleeve, and the front opening of the guide sleeve is arranged in a trumpet shape.

[0014] Preferably, the docking insert block is inserted into the docking slot, the insert riser is inserted into the docking vertical groove, and the bottom surface of the fixed insert plate abuts against the top surface of the docking insert block.

[0015] Preferably, a plurality of the welding heads are distributed in a ring shape on the inner wall of the sleeve, and a connecting elbow is fixedly installed on one side of the front side of the sleeve.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the large-diameter steel pipe welding device can facilitate the docking of steel pipes that need to be welded by setting a docking bearing assembly, effectively improving the docking efficiency and docking stability, and at the same time, by setting multiple welding heads and controlling the rotation of the welding assembly, the joints of the steel pipes can be welded in all directions and quickly, effectively improving the welding efficiency, without the need for staff to manually control the steel pipe to flip for welding, and is more practical. Further, the docking bearing assembly can be easily replaced to facilitate its carrying of steel pipes of different diameters, effectively improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the base assembly and the docking bearing assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure of the main assembly and the welding assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the main component of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the welding assembly of the utility model;

[0022] Figure 6 For this utility model Figure 2 Schematic diagram of the enlarged structure of area A.

[0023] In the figure: 1, bottom plate; 2, base assembly; 201, arch bracket; 202, docking slot; 203, embedded vertical plate; 204, fixed plug plate; 205, baffle; 206, threaded rod; 3, docking bearing assembly; 301, docking block; 302, docking vertical groove; 303, bearing sleeve; 304, guide sleeve; 4, main body assembly; 401, mounting sleeve; 402, annular groove; 403, gear groove; 5, welding assembly; 501, sleeve; 502, welding head; 503, connecting elbow; 504, embedded slip ring; 505, gear teeth; 506, gear; 507, rotating motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution: comprising a bottom plate 1, two base assemblies 2 are fixedly installed on both sides of the top surface of the bottom plate 1, a main body assembly 4 is fixedly installed in the middle of the top surface of the bottom plate 1, a docking bearing assembly 3 is arranged on the top of a plurality of the base assemblies 2, and a welding assembly 5 is rotatably installed in the main body assembly 4;

[0026] The base assembly 2 includes an arched bracket 201, a docking slot 202 is provided on the top surface of the arched bracket 201, an embedded vertical plate 203 is fixedly installed in the middle of both sides of the docking slot 202, a threaded hole and a plug interface are provided on the top of the front of the embedded vertical plate 203 from top to bottom, a fixed plug board 204 is plugged into the plug interface, a baffle 205 is fixedly installed on the front of the top of the fixed plug board 204, a threaded rod 206 is rotatably installed on the front of the baffle 205, and one end of the threaded rod 206 is threadedly connected to the threaded hole;

[0027] The docking bearing assembly 3 includes a docking insert 301, both sides of the docking insert 301 are provided with a docking vertical groove 302, and a bearing sleeve 303 is fixedly installed in the middle of the top surface of the docking insert 301;

[0028] The main body component 4 includes a mounting sleeve 401, an annular groove 402 is formed on the annular inner wall of the mounting sleeve 401, a gear groove 403 is formed on the top of the mounting sleeve 401, and the gear groove 403 is communicated with the inside of the annular groove 402;

[0029] The welding assembly 5 includes a sleeve 501, and a plurality of welding heads 502 are fixedly installed on the inner ring of the sleeve 501. An embedded slip ring 504 is fixedly sleeved on the outer wall of the sleeve 501. A plurality of gear teeth 505 are fixedly installed on the outer wall of the embedded slip ring 504. The tops of the plurality of gear teeth 505 are meshingly connected with gears 506. A rotating motor 507 is fixedly connected to the front of the gear 506. The embedded slip ring 504 is rotatably installed in the annular groove 402. The rotating motor 507 is fixedly installed on the top of the front of the mounting sleeve 401. The gear 506 is rotatably installed in the gear groove 403. The rotation of the output shaft of the rotating motor 507 can drive the gear 506 to rotate. Since the gear 506 is meshingly connected with the plurality of gear teeth 505 fixedly installed on the outer wall of the embedded slip ring 504, the rotation of the gear 506 can drive the embedded slip ring 504 to rotate in the annular groove 402.

[0030] At the same time, one end of the output shaft of the rotating motor 507 extends into the gear slot 403 and is fixedly connected to the center of the front face of the gear 506 .

[0031] A guide sleeve 304 is fixedly mounted on the front of the bearing sleeve 303. The front opening of the guide sleeve 304 is arranged in a trumpet shape, and the steel pipe can be conveniently inserted into the bearing sleeve 303 through the guidance of the guide sleeve 304.

[0032] The docking insert 301 is inserted into the docking slot 202, the insert riser 203 is inserted into the docking vertical slot 302, the bottom surface of the fixed plug plate 204 abuts against the top surface of the docking insert 301, and the docking insert 301 is restricted in the docking slot 202 by the fixed plug plate 204, so that the docking bearing assembly 3 can be easily replaced.

[0033] A plurality of welding heads 502 are distributed in a ring shape on the inner wall of the sleeve 501. A connecting elbow 503 is fixedly installed on one side of the front of the sleeve 501. An external hose can conveniently supply welding energy.

[0034] When in use, the steel pipe can be conveniently inserted into the bearing sleeve 303 through the guidance of the guide sleeve 304. After insertion, the steel pipe can be directly pushed. Under the limiting effect of the peripheral docking bearing assembly 3, the steel pipe can be conveniently inserted into another bearing sleeve 303. After the steel pipe is pushed to the welding position, another steel pipe is put in synchronously. After the welding ends of the two steel pipes are docked together in the welding area, the welding head 502 can be opened at this time, and the welding head 502 is aligned with the steel pipe connection to perform welding. During the welding process, the rotating motor 5 is started. 07. The rotation of the output shaft of the rotating motor 507 can drive the gear 506 to rotate. Since the gear 506 is meshed and connected with a plurality of gear teeth 505 fixedly installed on the outer wall of the embedded slip ring 504, the rotation of the gear 506 can drive the embedded slip ring 504 to rotate in the annular groove 402. The rotation of the embedded slip ring 504 can drive the sleeve 501 to rotate. The rotation of the sleeve 501 can drive a plurality of welding heads 502 fixedly installed on its inner ring to rotate, thereby enabling all-round and rapid welding of the joints of the steel pipes, effectively improving the welding efficiency.

[0035] When it is necessary to carry out load-bearing docking of steel pipes of different sizes, it is necessary to replace the docking bearing assembly 3, and it is only necessary to rotate the threaded rod 206. The rotation of the threaded rod 206 can slowly disengage the threaded hole opened on the front face of the embedded vertical plate 203, and the process of disengagement can also drive the fixed plug plate 204 to disengage from the plug interface opened on the front face of the embedded vertical plate 203. After the threaded rod 206 is removed, the fixed plug plate 204 will also completely disengage from the plug interface opened on the front face of the embedded vertical plate 203. At this time, the docking bearing assembly 3 can be directly lifted from the docking slot 202 set above the base assembly 2 to remove it, and then the docking block 301 at the bottom of the replaced docking bearing assembly 3 is inserted into the docking slot 202, and then the fixed plug plate 204 is inserted into the plug interface, and the docking block 301 is restricted in the docking slot 202 by the fixed plug plate 204, so that the docking bearing assembly 3 can be conveniently replaced.

[0036] To sum up, the large-diameter steel pipe welding device can facilitate the docking of steel pipes that need to be welded by setting a docking bearing assembly, effectively improving the docking efficiency and docking stability. At the same time, by setting multiple welding heads and controlling the rotation of the welding assembly, the joints of the steel pipes can be quickly welded in all directions, effectively improving the welding efficiency. There is no need for staff to manually control the steel pipe to flip for welding, which is more practical. Further, the docking bearing assembly can be easily replaced to facilitate its carrying of steel pipes of different diameters, effectively improving the adaptability of the device.

[0037] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be fixed, connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large diameter steel pipe welding device, comprising a bottom plate (1), characterized in that Two base assemblies (2) are fixedly mounted on both sides of the top surface of the bottom plate (1); a main body assembly (4) is fixedly mounted in the middle of the top surface of the bottom plate (1); a docking bearing assembly (3) is arranged on the top of a plurality of the base assemblies (2); and a welding assembly (5) is rotatably mounted in the main body assembly (4); The base assembly (2) comprises an arch support (201), a docking slot (202) is provided on the top surface of the arch support (201), an embedded vertical plate (203) is fixedly installed in the middle of both sides of the docking slot (202), a threaded hole and a plug interface are provided on the top of the front surface of the embedded vertical plate (203) from top to bottom, a fixed plug board (204) is plugged into the plug interface, a baffle (205) is fixedly installed on the front of the top of the fixed plug board (204), a threaded rod (206) is rotatably installed on the front of the baffle (205), and one end of the threaded rod (206) is threadedly connected to the threaded hole; The docking bearing assembly (3) comprises a docking insert (301), both sides of which are provided with a docking vertical groove (302), and a bearing sleeve (303) is fixedly installed in the middle of the top surface of the docking insert (301); The main body component (4) comprises a mounting sleeve (401), an annular inner wall of the mounting sleeve (401) is provided with an annular groove (402), a top of the mounting sleeve (401) is provided with a gear groove (403), and the gear groove (403) is communicated with the inside of the annular groove (402); The welding assembly (5) comprises a sleeve (501), a plurality of welding heads (502) are fixedly mounted on the inner ring of the sleeve (501), an embedded slip ring (504) is fixedly sleeved on the outer wall of the sleeve (501), a plurality of gear teeth (505) are fixedly mounted on the outer wall of the embedded slip ring (504), a plurality of gear teeth (505) are meshingly connected with gears (506) at the tops of the plurality of gear teeth (505), a rotating motor (507) is fixedly connected to the front side of the gear (506), and the embedded slip ring (504) is rotatably mounted in the annular groove (402).

2. The large-diameter steel pipe welding device according to claim 1, characterized in that: The rotating motor (507) is fixedly mounted on the top of the front side of the mounting sleeve (401), and the gear (506) is rotatably mounted in the gear slot (403).

3. The large diameter steel pipe welding device according to claim 1, characterized in that: One end of the output shaft of the rotating motor (507) extends into the gear groove (403) and is fixedly connected to the center of the front face of the gear (506).

4. The large diameter steel pipe welding device according to claim 1, characterized in that: A guide sleeve (304) is fixedly mounted on the front side of the bearing sleeve (303), and the front opening of the guide sleeve (304) is arranged in a trumpet shape.

5. The large diameter steel pipe welding device according to claim 1, characterized in that: The docking insert (301) is inserted into the docking slot (202), the insert riser (203) is inserted into the docking vertical groove (302), and the bottom surface of the fixed insert plate (204) abuts against the top surface of the docking insert (301).

6. The large diameter steel pipe welding device according to claim 1, characterized in that: A plurality of welding heads (502) are distributed in a ring shape on the inner wall of the sleeve (501), and a connecting elbow (503) is fixedly installed on one side of the front face of the sleeve (501).

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