Pipeline welding device and method

Abstract

The invention discloses a pipeline welding device and method.The pipeline welding device comprises a frame, pipeline supporting plates and a pivoting assembly, multiple sets of guide rods are arranged in the frame, the multiple sets of guide rods are movably sleeved with two sets of base plates, the two sets of base plates are connected through a traction assembly, and the two sets of pipeline supporting plates are fixedly connected to one set of base plates correspondingly; the pivoting assembly comprises a movable frame, a fixed frame and two arc rings, the fixed frame is located in the frame, a supporting block is arranged on one side of the movable frame and hinged to the frame, a power part is arranged on the movable frame, the two arc rings are connected through a transmission plate, a detachable welding part is installed on the transmission plate, and the power part is used for driving the two arc rings to rotate. Each arc ring is provided with a micro electric cylinder, and a movable rod of each micro electric cylinder is provided with a cleaning and polishing part capable of making contact with a pipeline opening. The position of the pipeline on the pipeline supporting plate is automatically positioned and clamped, manual multi-time pushing adjustment is not needed, the operation efficiency is high, and the welding precision is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, and in particular to a pipeline welding device and method. Background Art

[0002] Pipelines are widely used in industrial transportation fields such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components. Pipelines can transport liquids, gases, etc. Multiple pipelines can be connected by welding to form a long pipeline to meet usage needs.

[0003] At present, in the process of pipeline welding, on-site materials are often used for support and alignment, which not only requires a long time for adjustment operation and high instability during welding, but also requires cleaning and grinding of the pipeline mouth to remove attached dirt, oil, paint, rust, burrs, etc. When cleaning by manpower, it is difficult to control the accuracy of cleaning and grinding, resulting in uneven alignment of the two pipelines, affecting the welding quality. Therefore, the present invention proposes a pipeline welding device and method that can solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a pipeline welding device and method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pipeline welding device, comprising:

[0007] The frame has multiple groups of guide rods arranged inside, and two groups of pads are movably sleeved on the multiple groups of guide rods, and the two groups of pads are connected by a pulling and moving assembly;

[0008] There are two groups of pipeline support plates, which are fixed to one group of the pads respectively, and each group of the pipeline support plates is provided with an adjustment component for positioning and clamping the pipeline;

[0009] The pivot assembly comprises a movable frame, a fixed frame and two groups of arc circles, wherein the fixed frame is located in the frame, a support block is arranged on one side of the movable frame, the support block is hinged to the frame, a power unit is arranged on the movable frame, the two groups of arc circles are connected by a transmission plate, a detachable welding part is installed on the transmission plate, the power unit is used to drive the two groups of arc circles to rotate, and a micro electric cylinder is installed on each group of arc circles, and a cleaning and polishing part which can contact with a pipe opening is arranged on the movable rod of the micro electric cylinder.

[0010] As a preferred technical solution, the pulling assembly includes a pulling arm rotatably connected to the inner wall of the frame, and movable arms are rotatably connected to both ends of the pulling arm, and two groups of movable arms are respectively hinged to a group of pads.

[0011] As a preferred technical solution, a transverse cylinder is installed on the frame, and a movable rod of the transverse cylinder is connected to a group of the pads. The movable rod of the transverse cylinder can be extended and retracted to drive the two groups of the pads to move closer to or away from each other.

[0012] As a preferred technical solution, the adjustment assembly includes a first longitudinal cylinder body and a second longitudinal cylinder body installed on the lower side of the pad, and a first straight groove and a second straight groove opened on the pipe support plate, the first straight groove and the second straight groove are symmetrically distributed and respectively inserted with a first push rod and a second push rod, the movable rod of the first longitudinal cylinder body is connected to the first push rod through a push plate, and the movable rod of the second longitudinal cylinder body is connected to the second push rod through a push plate.

[0013] As a preferred technical solution, the movable rods of the first longitudinal cylinder body and the second longitudinal cylinder body are extended, and the first push rod and the second push rod are driven to move away from each other through the push plate; the movable rods of the first longitudinal cylinder body and the second longitudinal cylinder body are contracted, and the first push rod and the second push rod are driven to move closer to each other through the push plate, pushing the pipeline to move toward the center and clamping the pipeline.

[0014] As a preferred technical solution, a support block is provided on the other side of the movable frame, and bolts are provided on the support block. The bolts can be screwed to the frame to fix the movable frame.

[0015] As a preferred technical solution, two groups of first tracks are arranged at intervals on the movable frame, and two groups of second tracks are arranged at intervals on the fixed frame. The movable frame can be pivoted to make the first track and the second track dock one by one to form a circumferential channel, and the two groups of arc circles can rotate respectively along the formed circumferential channel.

[0016] As a preferred technical solution, the power unit includes two groups of motor bodies installed on the movable frame, the output ends of the two groups of motor bodies are respectively connected to gears, and an arc gear ring is arranged on one group of the arc circles. When the arc circle rotates, at least one group of the gears is meshed with the arc gear ring.

[0017] As a preferred technical solution, the cleaning and polishing portion includes an end surface contact section and a slope surface contact section.

[0018] A pipeline welding method is also provided, which is used in any of the above technical solutions and specifically comprises the following steps:

[0019] S1. Place two groups of pipes on a group of pipe support plates respectively, and make the distances between the pipe support plates extending from the two groups of pipe ports consistent;

[0020] S2, control the adjustment component to position and clamp the pipes, so that the two groups of pipes are respectively kept in the center position on the pipe support plate and are fixed;

[0021] S3, rotating the movable frame and screwing the bolts to the frame, so that the movable frame remains fixed, and the two groups of arc circles are respectively moved to one side of the two groups of pipe ends to be welded, so that the arc circles are in line with the center line of the pipe, and the micro-electric cylinder is controlled to drive the cleaning and polishing part to extend toward the center of the arc plate;

[0022] S4, the push pad drives the two groups of pipes to be welded on the pipe support plates to approach each other and contact the cleaning and grinding part, and the two groups of arc circles of the power part rotate, and the arc circles rotate to drive the cleaning and grinding part to grind and clean the pipe opening;

[0023] S5. Install the welding part on the transmission plate, control the micro electric cylinder to drive the cleaning and grinding part away from the center of the arc plate, and then push the pad to make the two groups of polished pipes face each other, and finally drive the arc circle to rotate through the power unit to weld the two groups of pipes.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] It realizes automatic positioning and clamping of the pipe on the pipe support plate, without the need for manual multiple adjustments, which has high operating efficiency and effectively improves welding accuracy;

[0026] When the arc circle rotates, it drives the cleaning and grinding part to grind and clean the pipe opening of the pipe, remove the attached dirt, oil, paint, rust, burrs, etc., so that the cleaning and grinding accuracy of the pipe opening is uniform and consistent, effectively improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the traction assembly of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the regulating component of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the pivot assembly of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the fixing frame of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the movable frame of the present invention;

[0033] Figure 7 It is a schematic diagram of the connection relationship between two groups of arc loops of the present invention;

[0034] In the figure: 10, frame; 11, guide rod; 12, pad; 20, traction assembly; 21, pulling arm; 22, movable arm; 23, transverse cylinder; 30, pipe support plate; 40, adjustment assembly; 41, first longitudinal cylinder; 42, second longitudinal cylinder; 43, first straight groove; 44, second straight groove; 45, first push rod; 46, second push rod; 47, push plate; 50, pivot assembly; 51, fixed frame; 511, second track; 52, movable frame; 521, first track; 522, support block; 523, support block; 524, bolt; 53, arc ring; 54, power unit; 541, motor body; 542, gear; 543, arc gear ring; 55, transmission plate; 56, welding unit; 57, micro electric cylinder; 58, cleaning and polishing unit; 581, end face contact section; 582, slope contact section. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figure 1-7

[0037] Embodiment 1 provides a pipeline welding device:

[0038] A support frame is provided below the frame 10 , and the support frame is connected to the frame 10 via a lifting cylinder, and can drive the frame 10 to lift vertically.

[0039] A plurality of guide rods 11 are arranged inside the frame 10, and two groups of pads 12 are movably sleeved on the plurality of guide rods 11. The two groups of pads 12 are connected by a traction assembly 20. A pipe support plate 30 is fixedly connected to each group of pads 12. The pipe support plate 30 is used to lift the pipe, so that the pipe can be moved on the guide rods 11 on the pipe support plate 30 through the two groups of pads 12, thereby adjusting the position of the pipe.

[0040] Each set of pipe support plates 30 is provided with an adjustment component 40 for positioning and clamping the pipes. After the pipes are placed on the support plates, they cannot be positioned and fixed. Therefore, the adjustment component 40 is used to position and clamp the pipes, so that the two sets of pipes are kept in the center position on the pipe support plates 30, respectively, to facilitate the connection of the two sets of pipes.

[0041] The adjustment assembly 40 includes a first longitudinal cylinder body 41 and a second longitudinal cylinder body 42 on the lower side of the mounting pad 12, and a first straight groove 43 and a second straight groove 44 opened on the pipe support plate 30. The number of the first straight grooves 43 and the number of the second straight grooves 44 are preferably multiple groups and the same. The multiple groups of first straight grooves 43 and the multiple groups of second straight grooves 44 are symmetrically distributed about the central vertical plane of the pipe support plate 30. A first push rod 45 is inserted in each group of first straight grooves 43, and a second push rod 46 is inserted in each group of second straight grooves 44. The movable rod of the first longitudinal cylinder body 41 is connected to the first push rod 45 through a push plate 47, and the movable rod of the second longitudinal cylinder body 42 is connected to the second push rod 46 through a push plate 47.

[0042] The first stopper 45 can move longitudinally along the first straight groove 43, and the second stopper 46 can move longitudinally along the second straight groove 44;

[0043] The movable rods of the first longitudinal cylinder 41 and the second longitudinal cylinder 42 extend out, and drive the first supporting rod 45 and the second supporting rod 46 to move away from each other through the push plate 47, that is, the distance between the first supporting rod 45 and the second supporting rod 46 is enlarged, and the pipe can be taken and placed on the pipe support plate 30 at this time;

[0044] The movable rods of the first longitudinal cylinder 41 and the second longitudinal cylinder 42 are retracted, and the first and second push rods 45 and 46 are driven to move closer to each other through the push plate 47 to push the pipeline toward the center and clamp the pipeline. After the pipeline is placed on the pipeline support plate 30, the first and second push rods 45 and 46 are driven to move closer to each other to push the pipeline toward the center, and finally clamp the pipeline.

[0045] The position of the pipeline on the pipeline support plate 30 is automatically positioned and clamped without manual multiple shifting and adjustment, which has high operating efficiency and effectively improves welding accuracy.

[0046] The pivot assembly 50 includes a movable frame 52, a fixed frame 51 and two groups of arc circles 53. The fixed frame 51 is located in the frame 10. A support block 522 is provided on one side of the movable frame 52. The support block 522 is hinged to the frame 10. A power unit 54 is provided on the movable frame 52. The two groups of arc circles 53 are connected by a transmission plate 55. The power unit 54 is used to drive the two groups of arc circles 53 to rotate, and a micro electric cylinder 57 is installed on each group of arc circles 53. A cleaning and polishing unit 58 that can contact the pipe mouth is provided on the movable rod of the micro electric cylinder 57.

[0047] Two groups of first rails 521 are arranged at intervals on the movable frame 52, and two groups of second rails 511 are arranged at intervals on the fixed frame 51. The movable frame 52 can be pivoted to make the first rails 521 and the second rails 511 connect one by one to form a circumferential channel, and the two groups of arcs 53 can rotate along the formed circumferential channels respectively.

[0048] A support block 523 is provided on the other side of the movable frame 52, and a bolt 524 is provided on the support block 523. After the positioning and clamping of the two groups of pipes to be welded are completed, the movable frame 52 is rotated and the bolt 524 is screwed to the frame 10, so that the movable frame 52 remains fixed, and the first track 521 and the second track 511 are connected one by one to form a circumferential channel, and the two groups of arc circles 53 are driven to move to one side of the mouth of the two groups of pipes to be welded respectively, and the arc circles 53 are in line with the center line of the pipes, and the micro electric cylinder 57 is controlled to drive the cleaning and polishing part 58 to extend toward the center of the arc plate, and the micro electric cylinder 57 provides power support through its own battery pack;

[0049] Then, a group of pads 12 are pushed to move on the guide rod 11, so that the two groups of pads 12 move synchronously through the pulling assembly 20, driving the pipes to be welded on the two groups of pipe support plates 30 to approach each other and contact the cleaning and grinding part 58, the cleaning and grinding part 58 includes an end face contact section 581 and a slope contact section 582, the end face contact section 581 and the slope contact section 582 are made of silicon carbide material, because the two groups of arc circles 53 are connected by the transmission plate 55, the power part 54 is used to drive one group of arc circles 53 to rotate and can synchronously drive the other group of arc circles 53 to rotate, when the arc circles 53 rotate, they drive the cleaning and grinding part 58 to grind and clean the pipe mouth of the pipe, remove the attached dirt, oil, paint, rust, burrs, etc., so that the cleaning and grinding accuracy of the pipe mouth is uniform, and the welding quality is effectively improved.

[0050] A detachable welding part 56 is installed on the transmission plate 55. After the pipe opening is cleaned and polished, the welding part 56 is installed on the transmission plate 55. The welding part 56 includes a bracket, a laser welding head and a plurality of connecting screws. The micro-electric cylinder 57 is controlled to drive the cleaning and polishing part 58 away from the center of the arc plate, and then the pad 12 is pushed to make the two groups of polished pipes face each other. Finally, the arc circle 53 is driven to rotate by the power part 54 to weld the two groups of pipes.

[0051] Embodiment 2 provides a pipeline welding device:

[0052] The pulling assembly 20 includes a pulling arm 21 rotatably connected to the inner wall of the frame 10, and movable arms 22 are rotatably connected to both ends of the pulling arm 21. The two sets of movable arms 22 are respectively hinged to a set of pads 12. A transverse cylinder 23 is installed on the frame 10. The movable rod of the transverse cylinder 23 is connected to a set of pads 12. The movable rod of the transverse cylinder 23 can be extended to drive the two sets of pads 12 to move closer to or away from each other.

[0053] The transverse cylinder 23 provides power for the movement of the pad 12 on the guide rod 11 without manual pushing, and the movable rod of the transverse cylinder 23 can be controlled to be extended and retracted to maintain the two sets of pipes without lateral movement during cleaning, grinding and welding.

[0054] The power unit 54 includes two groups of motor bodies 541 installed on the movable frame 52. The output ends of the two groups of motor bodies 541 are respectively connected to gears 542. An arc gear ring 543 is provided on one group of arc circles 53. When the arc circle 53 rotates, at least one group of gears 542 is meshed with the arc gear ring 543, ensuring the smooth driving of the arc circle 53.

[0055] After the two groups of pipes are welded to form a longer pipe, the movable frame 52 is rotated to reset and the clamping effect of the adjustment component 40 on the pipe is canceled, so that the longer pipe after welding can be vertically detached from the welding device, that is, there is no need to pull and move the welded pipe, the operation is convenient, and the space occupied by the pipe welding is effectively reduced.

[0056] Embodiment 3 provides a pipeline welding method:

[0057] S1, placing two groups of pipes on a group of pipe support plates 30 respectively, and making the distances between the pipe support plates 30 extending from the two groups of pipe ports consistent;

[0058] S2, controlling the adjusting assembly 40 to position and clamp the pipes, so that the two groups of pipes are respectively kept at the center position on the pipe support plate 30 and are fixed;

[0059] S3, rotate the movable frame 52 and screw the bolts 524 to the frame 10, so that the movable frame 52 remains fixed, and the two groups of arc circles 53 are respectively moved to one side of the two groups of pipe ends to be welded, so that the arc circles 53 are in line with the center line of the pipe, and the micro-electric cylinder 57 is controlled to drive the cleaning and polishing part 58 to extend toward the center of the arc plate;

[0060] S4, the push pad 12 drives the two groups of pipes to be welded on the pipe support plates 30 to approach each other and contact the cleaning and polishing part 58, and the two groups of arc circles 53 of the power part 54 rotate, and the arc circles 53 rotate to drive the cleaning and polishing part 58 to polish and clean the pipe opening;

[0061] S5. Install the welding part 56 on the transmission plate 55, control the micro-electric cylinder 57 to drive the cleaning and polishing part 58 away from the center of the arc plate, and then push the pad 12 to make the two groups of polished pipes align with each other, and finally drive the arc ring 53 to rotate through the power part 54 to weld the two groups of pipes.

[0062] 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 pipeline welding device, characterized in that: include: A frame (10) is provided with a plurality of guide rods (11) inside, two sets of pads (12) are movably sleeved on the plurality of guide rods (11), and the two sets of pads (12) are connected via a pulling assembly (20); There are two groups of pipeline support plates (30), which are respectively fixed to one group of the pads (12), and each group of the pipeline support plates (30) is provided with an adjustment component (40) for positioning and clamping the pipeline; The pivot assembly (50) comprises a movable frame (52), a fixed frame (51) and two groups of arc circles (53), wherein the fixed frame (51) is located in the frame (10), a support block (522) is arranged on one side of the movable frame (52), and the support block (522) is hinged to the frame (10), a power unit (54) is arranged on the movable frame (52), the two groups of arc circles (53) are connected via a transmission plate (55), a detachable welding part (56) is installed on the transmission plate (55), the power unit (54) is used to drive the two groups of arc circles (53) to rotate, and each group of arc circles (53) is installed with a micro electric cylinder (57), and a cleaning and polishing part (58) that can contact the pipe opening is arranged on the movable rod of the micro electric cylinder (57).

2. A pipeline welding device according to claim 1, characterized in that: The pulling assembly (20) comprises a pulling arm (21) rotatably connected to the inner wall of the frame (10), and movable arms (22) are rotatably connected to both ends of the pulling arm (21), and two groups of movable arms (22) are respectively hinged to a group of pads (12).

3. A pipeline welding device according to claim 2, characterized in that: A transverse cylinder (23) is installed on the frame (10), and a movable rod of the transverse cylinder (23) is connected to a group of pads (12). The movable rod of the transverse cylinder (23) can be extended and retracted to drive the two groups of pads (12) to move closer to or farther away from each other.

4. A pipeline welding device according to claim 1, characterized in that: The adjustment assembly (40) includes a first longitudinal cylinder body (41) and a second longitudinal cylinder body (42) mounted on the lower side of the pad (12), and a first straight groove (43) and a second straight groove (44) provided on the pipe support plate (30); the first straight groove (43) and the second straight groove (44) are symmetrically distributed and are respectively connected with a first push rod (45) and a second push rod (46); the movable rod of the first longitudinal cylinder body (41) is connected to the first push rod (45) via a push plate (47), and the movable rod of the second longitudinal cylinder body (42) is connected to the second push rod (46) via a push plate (47).

5. A pipeline welding device according to claim 4, characterized in that: The movable rods of the first longitudinal cylinder (41) and the second longitudinal cylinder (42) extend, and drive the first push rod (45) and the second push rod (46) to move away from each other through the push plate (47); the movable rods of the first longitudinal cylinder (41) and the second longitudinal cylinder (42) retract, and drive the first push rod (45) and the second push rod (46) to move toward each other through the push plate (47), so as to push the pipeline to move toward the center and clamp the pipeline.

6. A pipeline welding device according to claim 1, characterized in that: A support block (523) is provided on the other side of the movable frame (52), and a bolt (524) is provided on the support block (523). The bolt (524) can be screwed to the frame (10) to fix the movable frame (52).

7. A pipeline welding device according to claim 1, characterized in that: Two groups of first tracks (521) are arranged at intervals on the movable frame (52), and two groups of second tracks (511) are arranged at intervals on the fixed frame (51). The movable frame (52) can be pivoted so that the first tracks (521) and the second tracks (511) are connected one by one to form a circumferential channel, and the two groups of arc circles (53) can rotate respectively along the formed circumferential channel.

8. A pipeline welding device according to claim 7, characterized in that: The power unit (54) comprises two groups of motor bodies (541) mounted on the movable frame (52), the output ends of the two groups of motor bodies (541) are respectively connected to gears (542), one group of the arc ring (53) is provided with an arc gear ring (543), and when the arc ring (53) rotates, at least one group of the gears (542) is meshed with the arc gear ring (543).

9. A pipeline welding device according to claim 1, characterized in that: The cleaning and polishing portion (58) comprises an end surface contact section (581) and a slope surface contact section (582).

10. A pipeline welding method, used for the welding device according to any one of claims 1 to 9, characterized in that: The specific steps include: S1, placing two groups of pipes on a group of pipe support plates (30) respectively, and making the distances between the pipe support plates (30) extending from the two groups of pipe openings consistent; S2, controlling the adjustment component (40) to position and clamp the pipelines so that the two groups of pipelines are respectively kept at the center position on the pipeline support plate (30) and are fixed; S3, rotating the movable frame (52) and screwing the bolts (524) to the frame (10), so that the movable frame (52) remains fixed, and the two groups of arc circles (53) are respectively moved to one side of the two groups of pipe ends to be welded, so that the arc circles (53) are aligned with the center line of the pipe, and the micro electric cylinder (57) is controlled to drive the cleaning and polishing part (58) to extend toward the center of the arc plate; S4, the pushing pad (12) drives the pipes to be welded on the two sets of pipe supporting plates (30) to approach each other and contact the cleaning and polishing part (58), and the two sets of arc circles (53) of the power part (54) rotate, and the arc circles (53) rotate to drive the cleaning and polishing part (58) to polish and clean the pipe opening; S5, the welding part (56) is mounted on the transmission plate (55), the micro electric cylinder (57) is controlled to drive the cleaning and polishing part (58) away from the center of the arc plate, and then the pad (12) is pushed to make the two groups of polished pipes face each other, and finally the arc ring (53) is driven to rotate by the power part (54) to weld the two groups of pipes.

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