Pipeline annular welding device

Abstract

The utility model provides an annular welding device for a pipeline, which is applied to the field of pipeline welding and is characterized by comprising an opening and closing driving component, the first track and the second track are driven by the opening and closing driving assembly to be spliced and are combined to form a circular-ring-shaped track during splicing; a surrounding drive assembly; the surrounding frame is driven by a surrounding driving assembly and slides along the path of the first track and the second track, and a welding gun is arranged on the surrounding frame in a bearing mode; the transfer driving part is used for driving the first track and the second track to move, so that a to-be-welded pipeline is positioned between the first track and the second track before the first track and the second track are spliced, and the first track and the second track are annularly arranged outside the pipeline after being spliced; the pipeline welding device has the technical effect of replacing manual work to efficiently weld pipelines.

Description

Technical Field

[0001] The utility model relates to the field of pipeline welding, in particular to a pipeline annular welding device. Background Art

[0002] Laying pipes is a very common task in various construction scenarios. In order to facilitate transportation, pipes are usually cut into fixed lengths and re-welded and assembled at the construction site.

[0003] Currently, the welding work after pipe butt connection is usually done manually. When welding the pipe, the welding gun needs to circle the pipe for welding. When the pipe is laid in a long line, it is fixed in sections. Because the previous pipe has been welded and fixed, it is usually impossible to rotate the pipe during welding. Manual welding is extremely inconvenient and the welding efficiency is low. Utility Model Content

[0004] The utility model aims to provide a pipeline annular welding device, which has the advantage of replacing manual welding of pipelines with high efficiency.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions: a pipe annular welding device, comprising:

[0006] Opening and closing drive assembly;

[0007] A first track and a second track are driven to be spliced ​​together by the opening and closing drive assembly and are combined to form a circular track when spliced ​​together;

[0008] A transfer drive member drives the first track and the second track to move so that the first track and the second track are arranged in a circle outside the pipeline after being assembled;

[0009] a surround drive assembly; and,

[0010] A surrounding frame is driven by the surrounding drive assembly and slides along the paths of the first track and the second track, and a welding gun is mounted on the surrounding frame.

[0011] Through the above technical solution, after the pipelines are docked, the opening and closing drive assembly drives the first track and the second track to open, and the transfer drive member drives the first track and the second track to move, so that the first track and the second track move toward a preset position where the pipeline is surrounded. After the first track and the second track reach the preset position, the opening and closing drive assembly drives the first track and the second track to be spliced ​​together, so that the first track and the second track are surrounded by the pipeline. Thereafter, the welding gun works, and at the same time, the surrounding drive assembly drives the surrounding frame to move along the circular track formed by the first track and the second track, so that the welding gun surrounds the pipeline to weld the pipeline. This solution drives the welding gun to surround the pipeline to weld the pipeline through a mechanical mechanism, replacing manual labor to efficiently weld the pipeline.

[0012] In one embodiment of the present invention, the opening and closing drive assembly includes:

[0013] A driving gear and a driven gear meshing with the driving gear, a first screw and a second screw with opposite thread directions are fixed on both sides of the driven gear, the first screw is threadedly connected to a first slider fixedly connected to the first track, and the second screw is threadedly connected to a second slider fixedly connected to the second track; an opening and closing drive member drives the driving gear to rotate reciprocally so that the first slider and the second slider move toward or in opposite directions to achieve the splicing and separation of the first track and the second track.

[0014] Through the above technical solution, the opening and closing drive member drives the driving gear to rotate, and the driving gear drives the driven gear to rotate. When the driven gear rotates, it drives the first screw and the second screw to rotate. Since the threads of the first screw and the second screw are set in opposite directions, the first slider and the second slider will move towards each other or in opposite directions, thereby driving the first track and the second track to separate or splice.

[0015] In one embodiment of the present invention, the surround drive assembly includes:

[0016] A surrounding drive member mounted on the surrounding frame; a surrounding gear driven to rotate by the surrounding drive member; and a gear ring mounted separately on the first track and the second track, wherein a complete gear ring is formed when the first track and the second track are assembled, and the surrounding gear is meshed with the gear ring.

[0017] Through the above technical solution, the surrounding drive member drives the surrounding gear to rotate, and the surrounding gear moves along the ring gear, thereby driving the surrounding frame to move on the first track and the second track, so that the welding gun moves around the pipe.

[0018] In one embodiment of the present invention, the transfer driving component is configured as a robotic arm.

[0019] Through the above technical solution, the robotic arm flexibly drives the first track and the second track to move.

[0020] In one embodiment of the present invention, the device further comprises a welding drive mounted on the surrounding frame and a welding gun fixing frame driven by the welding drive frame to slide back and forth along the length direction of the pipe during welding, wherein the welding gun is mounted on the welding gun fixing frame.

[0021] With the above technical solution, when the surrounding frame drives the welding gun to circle around the welding pipe, the welding drive member drives the welding gun fixing frame to slide back and forth, thereby making the weld into a wave shape and improving the welding strength.

[0022] In one embodiment of the present invention, the welding drive component is configured as a screw mechanism driven by a stepper motor or a servo motor, or an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0023] Through the above technical solution, the screw mechanism, electric cylinder, air cylinder and hydraulic cylinder drive the welding gun fixing frame to slide back and forth, thereby making the weld into a wave shape and improving the welding strength.

[0024] As described above, the pipe annular welding device of the present invention has the following beneficial effects:

[0025] After the pipelines are docked, the opening and closing drive assembly drives the first track and the second track to open, and the transfer drive member drives the first track and the second track to move, so that the first track and the second track move toward a preset position where the pipeline is surrounded. After the first track and the second track reach the preset position, the opening and closing drive assembly drives the first track and the second track to be spliced ​​together, so that the first track and the second track are surrounded by the pipeline. Then the welding gun works and the surrounding drive assembly drives the surrounding frame to move along the circular track formed by the first track and the second track, so that the welding gun surrounds the pipeline to weld the pipeline. This solution uses a mechanical mechanism to drive the welding gun to surround the pipeline to weld, replacing manual labor to efficiently weld the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Shown is a structural schematic diagram of a pipe annular welding device disclosed in an embodiment of the present utility model.

[0027] Figure 2 Shown is a schematic diagram of the opening and closing drive assembly of the pipe annular welding device disclosed in an embodiment of the present utility model.

[0028] Description of the technical feature numbers in the accompanying drawings:

[0029] 1. Support frame; 2. First track; 3. Second track; 4. Opening and closing drive assembly; 5. Surrounding drive assembly; 6. Surrounding frame; 7. Welding gun; 8. Welding drive member; 9. Welding gun fixing frame; 10. Guide rod; 11. Guide sleeve; 12. First guide plate; 13. Second guide plate; 14. First guide groove; 15. Second guide groove; 41. Driving gear; 42. Driven gear; 43. First screw; 44. Second screw; 45. First slider; 46. Second slider; 47. Opening and closing drive member; 51. Surrounding drive member; 52. Surrounding gear; 53. Ring gear. DETAILED DESCRIPTION

[0030] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0031] See also Figure 1 The utility model provides a pipeline annular welding device, comprising:

[0032] Support frame 1.

[0033] See also Figure 1 and Figure 2 , and also includes an opening and closing drive component 4, and a first track 2 and a second track 3 driven by the opening and closing drive component 4 to be spliced ​​together. The first track 2 and the second track 3 are both set to be semicircular, and after splicing, they are combined to form a complete circular track.

[0034] See also Figure 1 and Figure 2 The opening and closing drive assembly 4 includes: a driving gear 41 and an opening and closing drive member 47 that drives the driving gear 41 to rotate reciprocatingly. The opening and closing drive member 47 is set as a servo motor. The housing of the servo motor is fixed to the support frame 1 by screws, and the driving gear 41 is fixed to the output shaft of the opening and closing drive member 47; it also includes a driven gear 42 that meshes with the driving gear 41, and a first screw rod 43 and a second screw rod 44 with opposite thread directions are welded and fixed on both sides of the driven gear 42, and the axes of the first screw rod 43, the second screw rod 44 and the driven gear 42 are located on the same straight line, and the first screw rod 43 and the second screw rod 44 are rotatably connected to the support frame 1; the first screw rod 43 is threadedly connected to the A first slider 45 is fixedly connected to the first track 2, and a second slider 46 fixedly connected to the second track 3 is threadedly connected to the second screw rod 44. A first guide plate 12 and a second guide plate 13 are also welded and fixed to the support frame 1. A first guide groove 14 is provided on the first guide plate 12, and the first slider 45 is slidably assembled in the first guide groove 14. The first guide plate 12 limits the sliding direction of the first slider 45 and restricts the first slider 45 from rotating. A second guide groove 15 is provided on the second guide plate 13, and the second slider 46 is slidably assembled in the second guide groove 15. The second guide plate 13 limits the sliding direction of the second slider 46 and restricts the second slider 46 from rotating.

[0035] See also Figure 1 , and also includes a surrounding frame 6 slidably assembled on the first track 2 or the second track 3 and a surrounding drive component 5 that drives the surrounding frame 6 to slide along the circular track composed of the first track 2 and the second track 3.

[0036] The surround drive assembly 5 includes: a surround drive member 51 installed on the surround frame 6. In this embodiment, the surround drive member 51 is configured as a servo motor, and in other embodiments, a stepping motor can also be used instead. The shell portion of the surround drive member 51 is fixed to the surround frame 6 by screws; a surround gear 52 driven to rotate by the surround drive member 51, and the surround gear 52 is fixed to the output shaft of the surround drive member 51; and a ring gear 53 installed in a split manner on the first track 2 and the second track 3. When the first track 2 and the second track 3 are spliced ​​together, a complete ring gear 53 is formed, and the surround gear 52 is engaged with the ring gear 53. The surround drive member 51 drives the surround gear 52 to rotate, and the surround gear 52 will move along the ring gear 53, thereby driving the surround frame 6 to move on the first track 2 and the second track 3.

[0037] See also Figure 1 , also includes a welding drive 8 installed on the surrounding frame 6 and a welding gun fixing frame 9 driven by the welding drive 8 to slide back and forth along the length direction of the pipeline during welding. In this embodiment, the welding drive 8 is set to an electric cylinder. In other embodiments, it can also be replaced by a screw mechanism driven by a stepping motor, a screw mechanism driven by a servo motor, a cylinder or a hydraulic cylinder. The welding drive 8 is installed on the surrounding frame 6 by screws, and the axial direction of the piston rod is perpendicular to the plane of movement of the surrounding frame 6. The welding gun fixing frame 9 is fixed on the piston rod of the welding drive 8, and a welding gun 7 is fixed on the welding gun fixing frame 9. In the process of the surrounding frame 6 rotating around, the welding drive 8 drives the welding gun fixing frame 9 to slide back and forth, thereby making the weld wavy and improving the welding strength.

[0038] See also Figure 1 , also includes a guide rod 10 and a guide sleeve 11, the guide rod 10 is fixed to the welding gun fixing frame 9 by screws, and the guide sleeve 11 is welded and fixed to the surrounding frame 6, and the guide rod 10 and the guide sleeve 11 cooperate to guide the sliding direction of the welding gun fixing frame 9.

[0039] See also Figure 1 , and also includes a transfer drive (not shown in the drawings) that drives the first track 2 and the second track 3 to move, so that the pipe to be welded is located between the first track 2 and the second track 3 before the first track 2 and the second track 3 are spliced ​​together, and so that the first track 2 and the second track 3 are arranged outside the pipe after splicing. The transfer drive is configured as a robotic arm, and the support frame 1 is fixed to the end of the robotic arm.

[0040] In the present invention, after the pipelines are butt-jointed, the opening and closing drive assembly 4 drives the first track 2 and the second track 3 to open, and the transfer drive member drives the first track 2 and the second track 3 to move, so that the first track 2 and the second track 3 move toward a preset position surrounding the pipeline. After the first track 2 and the second track 3 reach the preset position, the opening and closing drive assembly 4 drives the first track 2 and the second track 3 to be spliced ​​together, so that the first track 2 and the second track 3 are arranged around the pipeline. Thereafter, the welding gun 7 works, and at the same time, the surrounding drive assembly 5 drives the surrounding frame 6 to move along the circular track spliced ​​together by the first track 2 and the second track 3, so that the welding gun 7 surrounds the pipeline for welding. This solution drives the welding gun 7 to surround the pipeline for welding by a mechanical mechanism, replacing manual labor to efficiently weld the pipeline.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any equivalent modifications or variations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the claims of the present invention.

Claims

1. A pipe ring welding device, characterized in that: include: Opening and closing drive assembly (4); A first track (2) and a second track (3) are driven to be spliced ​​together by the opening and closing drive assembly (4) and are combined to form a circular track when spliced ​​together; A transfer drive member drives the first track (2) and the second track (3) to move, so that the first track (2) and the second track (3) are arranged in a ring outside the pipeline after being spliced; a surround drive assembly (5); and, A surrounding frame (6) is driven by the surrounding drive assembly (5) and slides along the path of the first track (2) and the second track (3), and a welding gun (7) is mounted on the surrounding frame (6).

2. The pipe annular welding device according to claim 1, characterized in that: The opening and closing drive assembly (4) comprises: A driven gear (42) is provided, wherein a first screw (43) and a second screw (44) having opposite thread directions are fixed on both sides of the driven gear (42), wherein the first screw (43) is threadedly connected to a first slider (45) fixedly connected to the first track (2), and the second screw (44) is threadedly connected to a second slider (46) fixedly connected to the second track (3); and an opening and closing driving member (47) drives the driven gear (42) to rotate back and forth, so that the first slider (45) and the second slider (46) move toward or in opposite directions, thereby realizing the splicing and separation of the first track (2) and the second track (3).

3. The pipe annular welding device according to claim 1, characterized in that: The surround drive assembly (5) comprises: A surrounding drive member (51) is mounted on the surrounding frame (6); a surrounding gear (52) is driven to rotate by the surrounding drive member (51); and a ring gear (53) is separately mounted on the first track (2) and the second track (3), wherein the first track (2) and the second track (3) form a complete ring gear (53), and the surrounding gear (52) is meshed with the ring gear (53).

4. The pipe annular welding device according to claim 1, characterized in that: The transfer driving member is configured as a robotic arm.

5. The pipe annular welding device according to any one of claims 1 to 4, characterized in that: It also includes a welding drive member (8) mounted on the surrounding frame (6) and a welding gun (7) fixing frame driven by the welding drive member (8) to slide back and forth along the length direction of the pipeline during welding, and the welding gun (7) is mounted on the welding gun (7) fixing frame.

6. The pipe annular welding device according to claim 5, characterized in that: The welding drive member (8) is configured as a screw mechanism driven by a stepping motor or a servo motor, or as an electric cylinder, an air cylinder, or a hydraulic cylinder.

Images