A ship pipeline welding positioning device

Abstract

The invention discloses a ship pipeline welding positioning device, comprising a bidirectional electric cylinder and a circular ring, both ends of the bidirectional electric cylinder are provided with circular rings; an electric cylinder is provided on one side of the circular ring away from the bidirectional electric cylinder, the electric cylinder is hinged with a rotating rod, and the rotating rod is hinged with a rotating ring; the circular ring comprises an inner circular ring, an outer circular ring and a connecting ring, the inner circular ring and the outer circular ring are parallel to each other and are both connected with the connecting ring; limiting slide grooves are provided on the opposite sides of the inner circular ring and the outer circular ring, a slideway and an installation groove are provided on the connecting ring, the slideway is slidably connected with a one-way limiting block, limiting sliders are provided on both sides of the one-way limiting block, the limiting slider is slidably connected with the limiting slide groove, and a pulley is provided in the installation groove; a pushing block is provided on the connecting ring, and the pushing block can make the one-way limiting block move along the radial direction of the connecting ring; the one-way limiting block is connected with an arc-shaped card plate through a connecting plate. The invention can ensure accurate welding alignment, high welding precision and high welding efficiency; the arc-shaped card plate can be flexibly and quickly replaced to tighten the pipeline.

Description

Technical Field

[0001] The invention belongs to a welding positioning device, in particular to a ship pipeline welding positioning device. Background Art

[0002] Welding technology is widely used in the field of ship pipeline technology. The commonly used welding method is manual welding. The welder holds the electric welder in one hand and the pipe to be welded in the other hand. In addition, another person is required to press down another pipe to be welded and then weld the welding end. The hands will shake during the welding process, and it is difficult to ensure accurate alignment during the welding process. Some welding fixtures are not strong enough and the operation is troublesome. Spatter will occur during the welding process, which has a great safety hazard. In addition, ships need to sail on the sea for a long time and shake a lot. Therefore, when welding ship pipelines, higher welding accuracy is required. However, when the existing equipment is used to weld the pipeline in sections, it is difficult to accurately align, resulting in low welding efficiency. At the same time, it is not convenient to use it stably afterwards, and it is not convenient to use it continuously during welding, which makes it difficult to effectively improve the welding efficiency. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a ship pipeline welding positioning device which has good consistency in use, is convenient for precise alignment, and has high docking efficiency during welding.

[0004] Technical solution: A ship pipeline welding positioning device described in the present invention comprises a bidirectional electric cylinder and a circular ring, and circular rings are arranged at both ends of the bidirectional electric cylinder; an electric cylinder is arranged on the side of the circular ring away from the bidirectional electric cylinder, the electric cylinder is hinged to the rotating rod, and the rotating rod is hinged to the rotating ring; the circular ring comprises an inner circular ring, an outer circular ring and a connecting ring, the inner circular ring and the outer circular ring are parallel to each other and are both connected to the connecting ring; limiting slide grooves are arranged on the opposite sides of the inner circular ring and the outer circular ring, a slideway and an installation groove are arranged on the connecting ring, the slideway is slidably connected to the one-way limiting block, limiting sliders are arranged on both sides of the one-way limiting block, the limiting sliders are slidably connected to the limiting slide grooves, and a pulley is arranged in the installation groove; a pushing block is arranged on the connecting ring, and the pushing block can make the one-way limiting block move radially along the connecting ring; the one-way limiting block is connected to the arc-shaped clamping plate through a connecting plate.

[0005] Furthermore, a mounting seat is provided between the one-way limit block and the connecting plate, and a bolt hole matching the bolt is provided on the mounting seat. When encountering pipes with different diameters, the connecting plate and the arc-shaped clamping plate can be replaced flexibly and quickly by rotating the bolts, so as to use the arc-shaped clamping plate matching the pipe size for clamping and fastening.

[0006] Furthermore, the slideway, the pushing block, the mounting groove and the pulley are distributed in an array on the connecting ring.

[0007] Furthermore, a first mounting seat is arranged at the output end of the electric cylinder, a second mounting seat is arranged on the circumferential side of the outer ring, and the rotating rod is rotatably connected to the first mounting seat and the second mounting seat respectively. The output ends of the electric cylinders on the upper and lower sides are rotated in opposite directions, which is conducive to improving the pipe clamping efficiency.

[0008] Furthermore, bidirectional electric cylinders are distributed along the inner circular array, which improves the alignment accuracy of the pipes on both sides to 2mm.

[0009] Furthermore, the groove formed by the inner ring, the outer ring and the connecting ring is an annular groove, and the rotating ring is sleeved on the outside of the annular groove. The inner and outer ends of the one-way limit block extend on the inner side of the ring and in the annular groove respectively. The push block and the inclined arc section of the one-way limit block are slidably fitted in the annular groove.

[0010] Furthermore, the one-way limit block is fixedly connected to the limit sliding block, and the push block is fixedly connected to the connecting ring.

[0011] Working principle: The connecting plate and the arc-shaped card plate can be disassembled and replaced by flexibly rotating the bolts. In this way, when encountering pipes with different diameters, the arc-shaped card plate can be flexibly and quickly replaced, so that the arc-shaped card plate that fits the pipe size can be used for clamping and tightening. The spacing between the two side rings can be adjusted by the two-way electric cylinder. All the one-way limit blocks of the two side rings slide toward the middle at the same time to clamp the pipe, and the displacement of all limit blocks moving toward the middle is equal. The two side rings are parallel structures, so that the pipes on both sides are pulled closer and aligned. The rotation of the swivel can be driven by controlling the electric cylinder to drive the rotating rod to rotate, which can drive the swivel to rotate. In this way, the swivel drives the push block to rotate, which can push the push block to push the one-way limit block to slide, and drive the arc-shaped card plate to clamp the pipe, and then through the contraction of the two-way electric cylinder, the pipes on both sides are pulled closer to each other, and then the welding operation is carried out.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following significant features:

[0013] 1. It can ensure that the pipes are accurately aligned with a spacing of 2mm during welding, with high welding accuracy and efficiency, which is convenient for subsequent stable and continuous use;

[0014] 2. The connecting plate is fastened by bolts, and the connecting plate is fixedly connected with an arc-shaped clamping plate. When encountering pipes with different diameters, the arc-shaped clamping plate can be replaced flexibly and quickly to use the arc-shaped clamping plate that fits the pipe size for clamping and fastening;

[0015] 3. The distance between the two rings can be adjusted by a bidirectional electric cylinder, so that the pipe interfaces on both sides can be easily and accurately aligned;

[0016] 4. Control the electric cylinder to push the rotating rod to rotate, which can drive the rotating ring to rotate, and then drive the pushing block to rotate, push the one-way limit block to slide, drive the arc clamping plate to clamp the pipeline, and then through the contraction of the two-way electric cylinder, pull the pipelines on both sides closer to each other for subsequent welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a cross-sectional view of the AA surface of the present invention;

[0019] Figure 3 It is a left side view of the present invention;

[0020] Figure 4 It is a schematic diagram of the connection of the arc-shaped clamping plate 16 of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the ring 2 of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the inner ring 201 of the present invention. DETAILED DESCRIPTION

[0023] like Figures 1 to 3The ship pipeline welding positioning device comprises a bidirectional electric cylinder 1 arranged in an array, and the output ends on both sides of the bidirectional electric cylinder 1 are symmetrically fixedly connected with circular rings 2, and the bidirectional electric cylinder 1 is fixedly connected in an array between the sides of the circular rings 2 that are close to each other. An annular groove 3 is provided on the outer side of each circular ring 2, and a swivel 4 is rotatably mounted on the outer side of the circular ring 2. A slideway 5 is provided in an array between the inner wall of the annular groove 3 and the inner wall of the circular ring 2, and a limited slideway 6 is provided in an array (along the radial direction of the circular ring 2) on the inner walls of the left and right sides of each circular groove 3, and a one-way limit block 7 is slidably provided in each slideway 5, and a limited slider 8 is fixedly connected to the left and right sides of the one-way limit block 7, and a push block 9 is fixedly connected to the inner wall of the swivel 4 in an array. Each limit slider 8 is slidably provided in the limit slideway 6 on its own side, and at the same time, the two ends of the one-way limit block 7 extend in the circular ring 2 and the annular groove 3 respectively. The extended end of the one-way limit block 7 in the annular groove 3 is set in an inclined arc shape, and the push block 9 is slidably fitted with one end of the inclined arc of the one-way limit block 7 on each side. The inner wall array of the ring 2 is provided with a mounting groove 12, and a pulley 13 is installed in each mounting groove 12. The upper and lower ends of the left and right sides of the ring 2 away from one side are fixedly installed with electric cylinders 17, and the output ends of the electric cylinders 17 on the upper and lower sides are rotated in the opposite direction. The outer side surface of the ring 2 and the output end of the electric cylinder 17 are respectively fixedly installed with a second mounting seat 19 and a first mounting seat 18, and a rotating rod 20 is rotatably connected between the adjacent first mounting seat 18 and the second mounting seat 19. The push block 9 is fixedly connected to the inner wall array of the rotating ring 4, and the push block 9 is slidably fitted with the extended end of the one-way limit block 7 in the annular groove 3, and the extended end of the one-way limit block 7 in the annular groove 3 is set in an arc shape.

[0024] like Figure 4 , the inner side of each one-way limit block 7 is fixedly connected with a mounting seat 10, and a bolt hole 11 is provided on the mounting seat 10, and a clamping mechanism is installed on each mounting seat 10. The clamping mechanism includes a bolt 14, a connecting plate 15, and an arc-shaped clamping plate 16. A bolt 14 is provided in each bolt hole 11, and a connecting plate 15 is fastened and connected by the bolt 14. Each connecting plate 15 is fixedly connected with an arc-shaped clamping plate 16 along the radial inner side of the ring 2. When encountering pipes with different diameters, the connecting plate 15 and the arc-shaped clamping plate 16 can be flexibly and quickly replaced, and the arc-shaped clamping plate 16 that fits the pipe size can be used for clamping and fastening.

[0025] like Figures 5 and 6 The ring 2 includes an inner ring 201, an outer ring 202 and a connecting ring 203. The inner ring 201 and the outer ring 202 are parallel to each other and are both fixedly connected to the connecting ring 203. The inner ring 201 and the outer ring 202 are provided with limiting slide grooves 6 on the opposite sides thereof for the movement of the limiting slider 8. The connecting ring 203 is provided with slideways 5 and mounting grooves 12 at even intervals along the radial direction of the ring 2.

[0026] When the device is installed and used, the output ends of the two sides of the bidirectional electric cylinder 1 arranged in an array are symmetrically fixedly connected with a ring 2, and the outer side of each ring 2 is provided with an annular groove 3, and a slideway 5 is arranged in an array between the inner wall of the annular groove 3 and the inner wall of the ring, and the inner walls of the two sides of the annular groove 3 are arranged in an array with a limited slideway 6, and a one-way limit block 7 is slidably arranged in the slideway 5, and both sides of the one-way limit block 7 are fixedly connected with a limited slider 8, each of the limit sliders 8 is slidably arranged in the limit slideway 6 on each side, and at the same time, the two ends of the one-way limit block 7 extend respectively. It extends in the circular ring 2 and the annular groove 3, and a mounting seat 10 is fixedly connected to the extended end in the circular ring 2. Bolts 14 are arranged in the bolt holes 11 opened on the mounting seat 10, and a connecting plate 15 is fastened and connected by the bolts 14. An arc-shaped clamping plate 16 is fixedly connected to the connecting plate 15, so that the connecting plate 15 and the arc-shaped clamping plate 16 can be disassembled and replaced by flexibly rotating the bolts 14. In this way, when encountering pipes with different diameters, the arc-shaped clamping plate 16 can be flexibly and quickly replaced, so that the arc-shaped clamping plate 16 that fits the size of the pipe can be used for clamping and fastening. The push block 9 is fixedly connected to the inner wall array of the rotating ring 4, and the push block 9 and the one-way limit block 7 are slidably fitted in the extended end of the annular groove 3, and the extended end of the one-way limit block 7 in the annular groove 3 is arranged in an arc-shaped inclined manner, so that when the push block 9 and this end of the one-way limit block 7 are in contact and fit, the one-way limit block 7 will be driven to slide radially inward along the circular ring 2 in the slideway 5, and then the arc-shaped clamping plate 16 can be pushed to fit and clamp the surface of the pipeline. At the same time, when in use, the circular rings 2 on the left and right sides are respectively set on the ends of the two sections of the pipeline to be welded close to each other, and the spacing between the circular rings 2 on both sides is adjusted by the two-way electric cylinder 1, and all the one-way limit blocks 7 of the circular rings 2 on both sides slide to the middle at the same time to clamp the pipeline, and the displacement of all the limit blocks 7 to the middle is equal, and the circular rings on both sides are parallel structures, so that the pipelines on both sides are pulled close and aligned, and the accuracy meets the docking spacing of 2mm in the welding specification of the ship steel plate air duct. The rotation of the swivel 2 can be driven by controlling the electric cylinder 17 to drive the rotating rod 20 to rotate, and then the swivel 2 can be driven to rotate. In this way, the swivel 2 drives the pushing block 9 to rotate, and the pushing block 9 can push the one-way limit block 7 to slide, and drive the arc clamping plate 16 to clamp the pipeline, and then the two-way electric cylinder 1 is contracted to pull the pipelines on both sides closer to each other, and then the welding operation is carried out.

Claims

1. A ship pipeline welding positioning device, characterized in that: The invention comprises a bidirectional electric cylinder (1) and a circular ring (2), wherein the circular rings (2) are arranged at both ends of the bidirectional electric cylinder (1); an electric cylinder (17) is arranged on a side of the circular ring (2) away from the bidirectional electric cylinder (1), wherein the electric cylinder (17) is hinged to a rotating rod (20), and the rotating rod (20) is hinged to a rotating ring (4); the circular ring (2) comprises an inner circular ring (201), an outer circular ring (202) and a connecting ring (203), wherein the inner circular ring (201) and the outer circular ring (202) are parallel to each other and are both connected to the connecting ring (203); and the inner circular ring (201) and the outer circular ring (202) are arranged on opposite sides thereof. A limiting slide groove (6) is provided, a slideway (5) and a mounting groove (12) are provided on the connecting ring (203), the slideway (5) is slidably connected to the one-way limiting block (7), limiting sliders (8) are provided on both sides of the one-way limiting block (7), the limiting sliders (8) are slidably connected to the limiting slide groove (6), and a pulley (13) is provided in the mounting groove (12); a pushing block (9) is provided on the connecting ring (203), and the pushing block (9) can make the one-way limiting block (7) move along the radial direction of the connecting ring (203); the one-way limiting block (7) is connected to the arc-shaped clamping plate (16) through a connecting plate (15); A mounting seat (10) is arranged between the one-way limit block (7) and the connecting plate (15), and a bolt hole (11) matching the bolt (14) is provided on the mounting seat (10); The slideway (5), the pushing block (9), the mounting groove (12), and the pulley (13) are distributed in an array on the connecting ring (203); A first mounting seat (18) is provided at the output end of the electric cylinder (17), a second mounting seat (19) is provided on the circumferential side surface of the outer ring (202), and the rotating rod (20) is rotatably connected to the first mounting seat (18) and the second mounting seat (19) respectively; The groove formed by the inner ring (201), the outer ring (202) and the connecting ring (203) is an annular groove (3), and the rotating ring (4) is sleeved on the outside of the annular groove (3); The inner and outer ends of the one-way limit block (7) extend inside the inner side of the circular ring (2) and the annular groove (3) respectively.

2. A ship pipeline welding positioning device according to claim 1, characterized in that: The bidirectional electric cylinders (1) are distributed in an array along the inner ring (201).

3. A ship pipeline welding positioning device according to claim 1, characterized in that: The push block (9) and the inclined arc section of the one-way limit block (7) are slidably fitted in the annular groove (3).

4. A ship pipeline welding positioning device according to claim 1, characterized in that: The one-way limit block (7) is fixedly connected to the limit sliding block (8).

5. A ship pipeline welding positioning device according to claim 1, characterized in that: The pushing block (9) is fixedly connected to the connecting ring (203).

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