Ship and ocean engineering pipeline welding centering auxiliary device

Abstract

The ship and ocean engineering pipeline welding centering auxiliary device specifically comprises a machine base, a distance adjusting device is movably installed in the middle of the top of the machine base, a fixed cushion layer is fixedly installed above the top of the machine base, and the fixed cushion layer is located on the non-opened side of the distance adjusting device; and a sleeve shaft device is movably mounted on the side, close to the distance adjusting device, of the top of the fixed cushion layer. According to the ship and ocean engineering pipeline welding centering auxiliary device, the sleeve fixedly connected with the outer surface of the shaft sleeve piece in a sleeving mode gradually displaces, butt welding of two welding workpieces is facilitated, a welding head can promote all-directional welding according to the influence of the rotating acting force of a core shaft, and it is guaranteed that when the welding workpieces on the two sides displace and are subjected to butt welding; compared with the prior art that only the two ends of the pipeline are fixed, but the shaking of the middle part is ignored, the stability performance is improved, and the welding mode is simpler and more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, in particular to a centering auxiliary device for pipeline welding of ships and marine engineering. Background Art

[0002] Marine engineering refers to new construction, reconstruction and expansion projects that are aimed at developing, utilizing, protecting and restoring marine resources, and the main body of the project is located on the sea side of the coastline. Ship pipelines are a major way of power transmission, transporting steam, water, oil, etc., which has generated a large demand for pipelines. This has led to high technical requirements such as pipeline design and processing, welding and installation, forming a systematic project. During the butt welding process, the two pipelines need to be aligned. The efficiency and accuracy of the alignment affect the pipeline processing efficiency and service life.

[0003] According to Chinese patent number CN201911135027.0, a ship pipeline welding centering auxiliary device comprises a curved pipe part and a straight pipe part, the curved pipe part is provided with a first V-shaped support block and a second V-shaped support block along the pipeline direction, the first V-shaped support block slides along the rotating shaft guide frame, one end of the rotating shaft guide frame is fixedly connected with an arc guide rail slider, and the other end is hinged with the rotating shaft fixed on the rotating shaft bottom plate, the arc guide rail slider cooperates with the arc guide rail fixed on the rotating shaft bottom plate, the rotating shaft bottom plate is placed on the transverse guide rail of the middle bottom plate, and the middle bottom plate slides along the longitudinal track on the bottom plate; the straight pipe part is provided with a third V-shaped support block and a fourth V-shaped support block along the pipeline direction, the third V-shaped support block and the second V-shaped support block are arranged at the same height facing each other; the fourth V-shaped support block slides along the pipeline direction on the base.

[0004] To sum up, the defects in the above-mentioned prior art are that, although it can reduce the workload of manual operation and curved surface cutting, it is sometimes necessary to weld the two parts of the tube workpiece together to form a longer distance. If the above-mentioned method is still used, reciprocating adjustment is required, which is inconvenient, and the stability performance of the middle part of the tube workpiece is also difficult to guarantee. Therefore, there is still room for improvement. Summary of the invention

[0005] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve the technical problems is: A ship and marine engineering pipeline welding centering auxiliary device, specifically comprising: A machine base, a distance adjusting device is movably installed in the middle of the top of the machine base, and the distance adjusting device is used to adjust the moving distance in the horizontal direction. A fixed cushion is fixedly installed above the top of the machine base, and the fixed cushion is located on the side of the distance adjusting device that is not opened. A sleeve device is movably installed on the side of the top of the fixed cushion close to the distance adjusting device, and the sleeve device is used to adjust the fixing state of the side of the pipeline. A welding workpiece is movably sleeved at the outer edge of the sleeve device, and an auxiliary device is rotatably installed at the axis of the sleeve device, and the auxiliary device is used to adjust the stability performance of the equipment, and the welding workpiece is located on the outside of the auxiliary device. A belt is installed for transmission between the auxiliary device and the distance adjusting device; The auxiliary device includes a core shaft, an extrusion device is rotatably installed on the outer surface of the core shaft, a guide rod is movably installed between the extrusion device and the core shaft, the inner cavity of the extrusion device is movably sleeved on the outer side of the guide rod, a ring layer is fixedly installed on the left side of the extrusion device, a roller is fixedly installed on the top of the core shaft, the roller acts on the core shaft and operates synchronously, the core shaft forms a torsional trend that drives the fixedly installed pressure layer to move synchronously, the roller acts on the core shaft and operates synchronously, the core shaft forms a torsional trend that drives the fixedly installed pressure layer to move synchronously, the pressure layer displaces and extrude another part of the welding workpiece, the roller is located on the side away from the fixed cushion layer, the pressure layer is fixedly installed on the outer surface of the core shaft, and a shell is slidably installed on the left side of the ring layer.

[0006] Furthermore, the center points of the core shaft, the extrusion device and the ring layer are on the same straight line, the inner surface of the extrusion device is provided with a texture corresponding to the outer surface of the core shaft, the core shaft and the roller are coated with adhesive, the roller acts on the core shaft and operates synchronously, the core shaft forms a torsional tendency to drive the fixedly installed pressing layer to move synchronously, and the guide rod is a strip structure and is fixed on the fixed cushion layer.

[0007] Furthermore, the extrusion device also includes a shaft kit, which pushes the ring layer synchronously, and the sleeve fixedly sleeved on the outer surface of the shaft kit gradually displaces, a sleeve is fixedly installed on the outer surface of the shaft kit, a push head is fixedly installed on the outer edge of the sleeve, a support bar is fixedly installed on the side of the push head away from the sleeve, and an extension head is movably installed on the output end of the support bar, and an auxiliary tube is movably sleeved on the outer surface of the extension head, a welding head is fixedly installed on the outer surface of the core shaft, and the core shaft passes through the inner cavity of the welding head, and the welding head is located on the right side of the front side of the shaft kit, there are four extension heads in total, and the extension heads are evenly distributed with reference to the center line of the shaft kit, the auxiliary tube is located in the middle of the ring layer, the middle part of the shaft kit is a hollow shape structure, and the welding workpiece is composed of two parts spliced ​​together, and a welding head is clamped and connected between the two parts of the welding workpiece.

[0008] Furthermore, the sleeve shaft device includes a ring strip, a ring layer is slidably installed at the inner cavity of the ring strip, a pressure piece is fixedly connected to the top of the ring layer, a throwing piece is fixedly installed on the inner surface of the ring layer, a fine disk is fixedly installed on the side of the throwing piece away from the ring layer, a spring strip is movably installed in the middle of the back of the throwing piece, a central axis is fixedly installed at the axis center of the ring strip, the central axis runs synchronously with the influence of the force of the fine axis, the fine axis is twisted to affect the fine disk, so that the fine disk generates a rotating and throwing force to the outside, the fine disk is pressed down and squeezes the throwing piece, the throwing piece pushes the ring layer to expand outward, and the central axis runs through the inner cavity of the ring strip, the fine shaft is fixedly installed on the top of the central shaft, and the fine shaft is located in the groove at the center of the fine disk, the throwing pieces are evenly distributed with reference to the outer surface of the fine disk, adhesive is coated between the pressure piece and the ring layer, the pressure piece is made of rubber, the height of the ring strip itself is lower than the height of the ring layer, the fine disk, the pressure piece and the ring strip are concentric circles, and the throwing piece itself is an inclined structure.

[0009] Furthermore, the distance adjusting device includes a flat plate, a pressure shaft is rotatably installed inside the flat plate, and the pressure shaft passes through the inner cavity of the flat plate, a support piece is slidably installed on the top of the flat plate, the support piece is movably sleeved on the outer surface of the pressure shaft, and a corresponding slide bar is provided between the support piece and the inner wall of the flat plate, the support piece moves along the middle slide rail of the flat plate under the torsional action of the pressure shaft, and the support piece is slidably installed in the inner cavity of the flat plate, a clamping block is fixedly installed on one side of the support piece close to the pressure shaft, an extension rod is plugged and installed on the top of the clamping block, and the extension rod passes through the inner cavity of the clamping block, a middle plate is fixedly connected to the left side of the flat plate, the extension rod corresponds to the notch provided on the flat plate itself, the support piece is located above the flat plate, in the inner cavity, and the clamping block is located above the flat plate.

[0010] The present invention provides a welding centering auxiliary device for ships and marine engineering pipelines. It has the following beneficial effects: 1. The ship and marine engineering pipeline welding centering auxiliary device first movably sleeves the two parts of the welding workpieces that need to be welded on the outside of the ring layer, wherein one part of the welding workpiece is displaced and stuck on the ring strip, and then the other part of the welding workpiece is displaced by driving to achieve centering welding. That is, a motor is provided in the inner cavity of the machine base, one end of the motor output rod interacts with the gear on the output end of the pressure shaft, and the other end of the pressure shaft rotates under the influence of the motor output end. When the pressure shaft is energized, it rotates counterclockwise and interacts with the flat plate, thereby enabling the equipment to have basic processing conditions for docking the welding workpieces.

[0011] 2. The ship and marine engineering pipeline welding centering auxiliary device rotates along the reverse texture on the flat plate by energizing the pressure shaft to rotate counterclockwise. The support piece is movably sleeved on the outer surface of the pressure shaft, and a corresponding slide bar is provided between the support piece and the inner wall of the flat plate. The support piece moves along the middle slide rail of the flat plate under the torsion of the pressure shaft. The support piece supports the welding workpiece, and the welding workpiece gradually forms a tendency to combine under the displacement of the support piece. When the clamping block moves to a suitable position, the extension rod is inserted downward into the hole groove on the top of the flat plate, thereby forming a clamping position for the support piece, ensuring the position of the other part of the welding workpiece before welding, and facilitating the adjustment of the distance between the two parts of the welding workpiece for convenient welding processing. Compared with the existing technology, the equipment is simpler and easier to operate, and has a lower cost, which is convenient for popularization and use.

[0012] 3. The ship and marine engineering pipeline welding centering auxiliary device is arranged so that the welding workpiece is located above the support and is sleeved on the outer surface of the pressing piece. When the pressing shaft rotates, it gradually links the roller movement through the belt, and the roller acts on the core shaft and operates synchronously. The core shaft forms a torsional trend to drive the fixedly installed pressing layer to move synchronously, and the pressing layer displaces and squeezes the other part of the welding workpiece. The shaft set displaces with the rotation trend of the core shaft, and the displacement of the shaft set gradually drives the ring layer to move. The displacement of the ring layer impacts the outer shell, and the movement of the outer shell is combined with the thin shaft to form a snap-fitting effect. The bayonet on the thin shaft gradually snaps into the outer shell, and the middle shaft and the core shaft form a sleeve positioning, thereby ensuring the stability of one side and improving the purpose of welding processing.

[0013] 4. The welding centering auxiliary device for ship and marine engineering pipeline runs synchronously through the influence of the force of the central shaft and the thin shaft. The thin shaft is twisted to affect the thin plate, causing the thin plate to generate a rotating and swinging force outward. The thin plate presses down to squeeze the swinging piece, and the swinging piece pushes the ring layer to expand outward. The pressing piece presses and contacts the inner pipe wall of the welding workpiece on one side as the ring layer moves. The distance between the ring layer and the ring strip is compacted, thereby improving the general performance of the welding workpiece pipeline on one side, thereby achieving the purpose of fixing the welding workpiece on one side before rapid welding.

[0014] 5. The ship and marine engineering pipeline welding centering auxiliary device gradually displaces a sleeve fixedly sleeved on the outer surface of the shaft kit, and the sleeve moves in a synchronous circular motion with the rotation of the shaft kit, and the sleeve will squeeze the push head when rotating, and the push head squeezes the support bar. The support bar displaces and hits the extension head to move, and the extension head gradually penetrates the auxiliary pipe and extends on the outside, and the auxiliary pipe squeezes the inner wall of the welding workpiece pipe. Finally, under the displacement of the support, the two parts of the welding workpiece are close to the welding head in the middle, and the welding head is fixedly sleeved in the middle position of the core shaft, which is convenient for butt welding of the two parts of the welding workpiece. The welding head can promote all-round welding according to the influence of the rotation force of the core shaft, and ensure the advantage of preventing the inner wall of the pipeline from shaking when the welding workpieces on both sides are displaced and butt-welded. Compared with the prior art, the traditional method of only fixing the two ends of the pipeline and ignoring the shaking of the middle part has improved stability and is relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the flat plate of the present invention; Figure 3 It is a three-dimensional schematic diagram of the structure of the finale of the present invention; Figure 4 It is a three-dimensional schematic diagram of the structure of the ring strip of the present invention; Figure 5 It is a schematic structural perspective view of the pressing piece of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of the structure of the jettison at position C in the middle; Figure 7 It is a three-dimensional schematic diagram of the structure of the thin plate of the present invention; Figure 8 It is a three-dimensional schematic diagram of the structure of the ring layer of the present invention; Fig. 9 It is a schematic diagram of the structure of the core shaft of the present invention; Fig.10 It is a schematic diagram of the structure of the pusher head of the present invention; Fig.11 It is a schematic structural stereogram of the support bar of the present invention.

[0016] In the figure: 1. base; 2. distance adjusting device; 3. fixed cushion layer; 4. sleeve shaft device; 5. auxiliary device; 6. welding workpiece; 7. belt; 21. flat plate; 22. pressure shaft; 23. support member; 24. block; 25. extension rod; 26. middle plate; 41. ring strip; 42. ring ring layer; 43. pressure member; 44. thin shaft; 45. middle shaft; 46. throwing member; 47. spring strip; 48. thin disk; 51. ring layer; 52. extrusion device; 53. core shaft; 54. roller; 55. guide rod; 56. pressure layer; 57. shell; 521. shaft set; 522. sleeve; 523. push head; 524. support strip; 525. extension head; 526. auxiliary pipe; 527. welding head. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0018] Example 1: Please refer to Figure 1-Figure 3 The present invention provides a technical solution: a ship and marine engineering pipeline welding centering auxiliary device, specifically comprising: A machine base 1, a distance adjusting device 2 is movably installed in the middle of the top of the machine base 1, and the distance adjusting device 2 is used to adjust the moving distance in the horizontal direction; The distance adjusting device 2 includes a flat plate 21, a pressure shaft 22 is rotatably installed inside the flat plate 21, and the pressure shaft 22 passes through the inner cavity of the flat plate 21, a support member 23 is slidably installed on the top of the flat plate 21, the support member 23 is movably sleeved on the outer surface of the pressure shaft 22, and a corresponding slide bar is provided between the support member 23 and the inner side wall of the flat plate 21, the support member 23 moves along the middle slide rail of the flat plate 21 under the torsional action of the pressure shaft 22, and the support member 23 is slidably installed in the inner cavity of the flat plate 21, a clamping block 24 is fixedly installed on one side of the support member 23 close to the pressure shaft 22, a stretching rod 25 is plugged and installed on the top of the clamping block 24, and the stretching rod 25 passes through the inner cavity of the clamping block 24, a middle plate 26 is fixedly connected to the left side of the flat plate 21, the stretching rod 25 corresponds to the notch provided on the flat plate 21 itself, the support member 23 is located above the flat plate 21, in the inner cavity, and the clamping block 24 is located above the flat plate 21.

[0019] When in use, first, the two parts of the welding workpiece 6 that need to be welded are movably sleeved on the outside of the ring layer 51 respectively, one part of the welding workpiece 6 is firstly displaced and stuck on the ring strip 41, and then the corresponding other part of the welding workpiece 6 is displaced by driving to achieve centering welding, that is, a motor is provided in the inner cavity of the machine base 1, one end of the motor output rod acts on the gear on the output end of the pressure shaft 22, and the other end of the pressure shaft 22 is affected by the output end of the motor and rotates. When the pressure shaft 22 is energized, it rotates counterclockwise and acts on the flat plate 21, so that the equipment has the basic processing conditions for docking the welding workpiece 6.

[0020] The support 23 is movably sleeved on the outer surface of the pressing shaft 22, and a corresponding slide bar is provided between the support 23 and the inner wall of the plate 21. The support 23 moves along the middle slide rail of the plate 21 under the torsion of the pressing shaft 22. The support 23 supports the welding workpiece 6, and the welding workpiece 6 gradually forms a tendency to combine under the displacement of the support 23. When the clamping block 24 moves to a suitable position, the extension rod 25 is inserted downward into the hole groove at the top of the plate 21, thereby forming a clamping position of the support 23, ensuring the position positioning of the other part of the welding workpiece 6 before welding, and facilitating the adjustment of the distance between the two parts of the welding workpiece 6 for convenient welding processing. Compared with the prior art, the equipment is simpler and easier to operate, and has a lower cost, which is convenient for popularization and use.

[0021] Example 2: Please refer to Figure 1 , Figure 4-Figure 7 The present invention provides a technical solution: a fixed cushion layer 3 is fixedly installed on the top of the machine base 1, and the fixed cushion layer 3 is located on the side of the distance adjustment device 2 that is not opened. A sleeve shaft device 4 is movably installed on the top of the fixed cushion layer 3 close to the distance adjustment device 2. The sleeve shaft device 4 is used to adjust the fixing state of the side edge of the pipeline; The sleeve shaft device 4 includes a ring strip 41, a ring layer 42 is slidably installed in the inner cavity of the ring strip 41, a pressure piece 43 is fixedly connected to the top of the ring layer 42, a throw-off piece 46 is fixedly installed on the inner surface of the ring layer 42, a fine plate 48 is fixedly installed on the side of the throw-off piece 46 away from the ring layer 42, a spring strip 47 is movably installed in the middle of the back of the throw-off piece 46, a central axis 45 is fixedly installed at the axis center of the ring strip 41, and the central axis 45 runs synchronously with the force of the fine shaft 44. The fine shaft 44 is twisted to affect the fine plate 48, so that the fine plate 48 generates a rotating and throwing force to the outside, and the fine plate 48 is rotated and thrown outward. 8 is pressed downward to squeeze the throw-off piece 46, which pushes the ring layer 42 to expand outward, and the central axis 45 passes through the inner cavity of the ring strip 41. A thin shaft 44 is fixedly installed on the top of the central axis 45, and the thin shaft 44 is located in the groove at the center of the thin disk 48. The throw-off pieces 46 are evenly distributed with the outer surface of the thin disk 48 as a reference. Glue is coated between the pressure piece 43 and the ring layer 42. The pressure piece 43 is made of rubber. The height of the ring strip 41 itself is lower than that of the ring layer 42. The thin disk 48, the pressure piece 43 and the ring strip 41 are concentric circles, and the throw-off piece 46 itself is an inclined shape structure.

[0022] When it is necessary to position the side wall of the ring strip 41, the welding workpiece 6 on one side is displaced and slid to between the ring strip 41 and the pressure piece 43. Due to the tendency of the core shaft 53 and the thin shaft 44 to form a combination, although the fixing effect can be improved, it is difficult to handle the general performance of the welding workpiece 6. When the problem of pipeline size is difficult, the welding workpiece 6 on one side is prone to fall off. Therefore, when the thin shaft 44 moves synchronously with the linkage effect of the core shaft 53, the middle shaft 45 runs synchronously with the force of the thin shaft 44. The twisting of the thin shaft 44 affects the thin disk 48, prompting the thin disk 48 to generate a rotating and swinging force outward. The thin disk 48 presses down and squeezes the swinging piece 46. The swinging piece 46 pushes the ring layer 42 to expand outward. The pressure piece 43 squeezes and contacts the inner pipe wall of the welding workpiece 6 on one side as the ring layer 42 is displaced. The distance between the ring layer 42 and the ring strip 41 is compacted, thereby improving the general performance of the pipeline of the welding workpiece 6 on one side, thereby achieving the purpose of fixing the welding workpiece 6 on one side before rapid welding.

[0023] Example 3: Please refer to Figure 1-Figure 11 The present invention provides a technical solution: on the basis of embodiment 1, a welding workpiece 6 is movably sleeved at the outer edge of the sleeve shaft device 4, an auxiliary device 5 is rotatably installed at the axis of the sleeve shaft device 4, the auxiliary device 5 is used to adjust the stability performance of the equipment, and the welding workpiece 6 is located outside the auxiliary device 5, and a belt 7 is installed between the auxiliary device 5 and the distance adjustment device 2; The auxiliary device 5 includes a core shaft 53, on the outer surface of which an extrusion device 52 is rotatably installed, a guide rod 55 is movably installed between the extrusion device 52 and the core shaft 53, the inner cavity of the extrusion device 52 is movably sleeved on the outer side of the guide rod 55, a ring layer 51 is fixedly installed on the left side of the extrusion device 52, a roller 54 is fixedly installed on the top of the core shaft 53, the roller 54 acts on the core shaft 53 and operates synchronously, the core shaft 53 forms a torsional tendency to drive the fixedly installed pressure layer 56 to move synchronously, the roller 54 acts on the core shaft 53 and operates synchronously, the core shaft 53 forms a torsional tendency to drive the fixedly installed pressure layer 56 to move synchronously, the pressure layer 56 displaces and extrude another part of the welding workpiece 6, the roller 54 is located on the side away from the fixed cushion layer 3, the outer surface of the core shaft 53 is fixedly installed with a pressure layer 56, and the outer shell 57 is slidably installed on the left side of the ring layer 51.

[0024] The center points of the core shaft 53, the extrusion device 52 and the ring layer 51 are on the same straight line. The inner surface of the extrusion device 52 is provided with a texture corresponding to the outer surface of the core shaft 53. Glue is coated between the core shaft 53 and the roller 54. The roller 54 acts on the core shaft 53 and operates synchronously. The core shaft 53 forms a torsional tendency to drive the fixedly installed pressing layer 56 to move synchronously. The guide rod 55 is a strip structure and is fixed on the fixed cushion layer 3.

[0025] The extrusion device 52 also includes a shaft set 521, which pushes the ring layer 51 synchronously, and the sleeve 522 fixedly sleeved on the outer surface of the shaft set 521 gradually moves. The sleeve 522 is fixedly installed on the outer surface of the shaft set 521, and a push head 523 is fixedly installed on the outer edge of the sleeve 522. A support bar 524 is fixedly installed on the side of the push head 523 away from the sleeve 522. An extension head 525 is movably installed on the output end of the support bar 524, and an auxiliary tube 526 is movably sleeved on the outer surface of the extension head 525. The core A welding head 527 is fixedly installed on the outer surface of the shaft 53, and the core shaft 53 passes through the inner cavity of the welding head 527. The welding head 527 is located on the right side of the front side of the shaft sleeve 521. There are four extension heads 525, and the extension heads 525 are evenly distributed with reference to the center line of the shaft sleeve 521. The auxiliary tube 526 is located in the middle of the ring layer 51. The middle part of the shaft sleeve 521 is a hollow structure. The welding workpiece 6 is composed of two parts spliced ​​together, and the welding head 527 is clamped and connected between the two parts of the welding workpiece 6.

[0026] When two parts of the welding workpiece 6 need to be butt-welded, it is necessary to ensure that one end is stable first, and then ensure that the displacement of the other part of the welding workpiece 6 is stable and butt-welded. Therefore, when one side of the welding workpiece 6 needs to be fixed, the welding workpiece 6 on one side moves in the direction of the ring strip 41, and the welding workpiece 6 is located above the support 23 and is sleeved on the outer surface of the pressing piece 43. When the pressing shaft 22 rotates, it gradually moves the roller 54 through the belt 7, and the roller 54 acts on the core shaft 53 to operate synchronously. The core shaft 53 forms a torsional trend to drive the fixed installation The pressure layer 56 moves synchronously with the installed pressure layer 56, which displaces and extrude the other part of the welding workpiece 6. The shaft set 521 displaces with the rotation trend of the core shaft 53. The shaft set 521 is displaced and gradually pushes the ring layer 51 to move. The ring layer 51 is displaced and impacts the outer shell 57. The movement of the outer shell 57 is combined with the thin shaft 44 to form a snap-fitting effect. The snap-fitting mouth on the thin shaft 44 is gradually combined with the outer shell 57 at one place. The middle shaft 45 and the core shaft 53 form a socket positioning, thereby ensuring the stability of one side and improving the purpose of welding processing.

[0027] When the pipeline is welded, it is easy to be disturbed due to the impact of bumps or shaking. When the core shaft 53 rotates, the core shaft 53 gradually links the shaft set 521 to operate, and the shaft set 521 pushes the ring layer 51 synchronously, and the sleeve 522 fixedly sleeved on the outer surface of the shaft set 521 gradually moves. The sleeve 522 moves in a synchronous circular motion with the rotation of the shaft set 521, and the sleeve 522 squeezes the push head 523 when it rotates, and the push head 523 squeezes the support bar 524. The support bar 524 moves and hits the extension head 525, and the extension head 525 gradually penetrates the auxiliary pipe 526 and stretches outward. The auxiliary tube 526 squeezes the inner wall of the pipeline of the welding workpiece 6, and finally, under the displacement of the support member 23, the two parts of the welding workpiece 6 are close to the welding head 527 in the middle, and the welding head 527 is fixedly sleeved in the middle position of the core shaft 53, which is convenient for the butt welding of the two parts of the welding workpiece 6. The welding head 527 can promote all-round welding according to the influence of the rotational force of the core shaft 53, and ensure that when the welding workpieces 6 on both sides are displaced and butt-welded, the advantage of preventing the inner wall of the pipeline from shaking is achieved. Compared with the existing technology, which only fixes the two ends of the pipeline and ignores the shaking in the middle, the stability performance is improved, and the welding method is relatively simple and convenient.

[0028] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A ship and marine engineering pipeline welding centering auxiliary device, specifically comprising: A machine base (1), wherein a distance adjusting device (2) is movably mounted in the middle of the top of the machine base (1), and the distance adjusting device (2) is used to adjust the moving distance in the horizontal direction; a fixed cushion layer (3) is fixedly mounted above the top of the machine base (1), and the fixed cushion layer (3) is located on the side of the distance adjusting device (2) that is not open; a sleeve device (4) is movably mounted on the top of the fixed cushion layer (3) on the side close to the distance adjusting device (2), and the sleeve device (4) is used to adjust the fixing state at the side of the pipeline; a welding workpiece (6) is movably sleeved at the outer edge of the sleeve device (4); an auxiliary device (5) is rotatably mounted at the axis of the sleeve device (4), and the auxiliary device (5) is used to adjust the stability performance of the equipment, and the welding workpiece (6) is located on the outside of the auxiliary device (5); a belt (7) is installed between the auxiliary device (5) and the distance adjusting device (2), and the characteristics are: The auxiliary device (5) comprises a core shaft (53), an extrusion device (52) is rotatably mounted on the outer surface of the core shaft (53), a guide rod (55) is movably mounted between the extrusion device (52) and the core shaft (53), the inner cavity of the extrusion device (52) is movably sleeved on the outer side of the guide rod (55), a ring layer (51) is fixedly mounted on the left side of the extrusion device (52), a roller (54) is fixedly mounted on the top of the core shaft (53), the roller (54) is located on the side away from the fixed cushion layer (3), a pressing layer (56) is fixedly mounted on the outer surface of the core shaft (53), and a shell (57) is slidably mounted on the left side of the ring layer (51).

2. A ship and marine engineering pipeline welding centering auxiliary device according to claim 1, characterized in that: The center points of the core shaft (53), the extrusion device (52) and the ring layer (51) are on the same straight line; the inner surface of the extrusion device (52) is provided with a texture corresponding to the outer surface of the core shaft (53); adhesive is coated between the core shaft (53) and the rotating roller (54); and the guide rod (55) is a strip structure and is fixed on the fixed cushion layer (3).

3. A ship and marine engineering pipeline welding centering auxiliary device according to claim 1, characterized in that: The extrusion device (52) further comprises a shaft sleeve (521), a sleeve (522) being fixedly mounted on the outer surface of the shaft sleeve (521), a push head (523) being fixedly mounted on the outer edge of the sleeve (522), a support bar (524) being fixedly mounted on the side of the push head (523) away from the sleeve (522), an extension head (525) being movably mounted on the output end of the support bar (524), an auxiliary tube (526) being movably sleeved on the outer surface of the extension head (525), a welding head (527) being fixedly mounted on the outer surface of the core shaft (53), and the core shaft (53) passing through the inner cavity of the welding head (527), and the welding head (527) being located on the right side of the front side of the shaft sleeve (521).

4. A ship and marine engineering pipeline welding centering auxiliary device according to claim 3, characterized in that: There are four extension heads (525) in total, and the extension heads (525) are evenly distributed with reference to the center line of the shaft sleeve (521); the auxiliary tube (526) is located in the middle of the ring layer (51); the middle of the shaft sleeve (521) is a hollow structure; the welding workpiece (6) is composed of two parts spliced ​​together, and a welding head (527) is clamped and connected between the two parts of the welding workpiece (6).

5. The device for centering welding of ship and marine engineering pipeline according to claim 1, characterized in that: The sleeve shaft device (4) comprises a ring strip (41), a ring layer (42) is slidably mounted in the inner cavity of the ring strip (41), a pressing piece (43) is fixedly connected to the top of the ring layer (42), a throw-off piece (46) is fixedly mounted on the inner surface of the ring layer (42), a thin disk (48) is fixedly mounted on the side of the throw-off piece (46) away from the ring layer (42), a spring strip (47) is movably mounted in the middle of the back of the throw-off piece (46), a central shaft (45) is fixedly mounted at the axis center of the ring strip (41), and the central shaft (45) passes through the inner cavity of the ring strip (41), and a thin shaft (44) is fixedly mounted on the top of the central shaft (45), and the thin shaft (44) is located in a groove at the center of the thin disk (48).

6. A ship and marine engineering pipeline welding centering auxiliary device according to claim 5, characterized in that: The ejection pieces (46) are evenly distributed with reference to the outer surface of the fine plate (48), adhesive is coated between the pressing piece (43) and the ring layer (42), and the pressing piece (43) is made of rubber.

7. The device for centering welding of ship and marine engineering pipelines according to claim 5, characterized in that: The height of the ring strip (41) itself is lower than the height of the ring layer (42); the fine disk (48), the pressing piece (43) and the ring strip (41) are concentric circles; and the ejector piece (46) itself is an inclined structure.

8. The device for centering welding of ship and marine engineering pipelines according to claim 1, characterized in that: The distance adjustment device (2) comprises a flat plate (21), a pressure shaft (22) is rotatably mounted inside the flat plate (21), and the pressure shaft (22) passes through the inner cavity of the flat plate (21), a support member (23) is slidably mounted on the top of the flat plate (21), and the support member (23) is slidably mounted in the inner cavity of the flat plate (21), a clamping block (24) is fixedly mounted on one side of the support member (23) close to the pressure shaft (22), a stretching rod (25) is plugged and mounted on the top of the clamping block (24), and the stretching rod (25) passes through the inner cavity of the clamping block (24), and a middle plate (26) is fixedly connected to the left side of the flat plate (21).

9. A ship and marine engineering pipeline welding centering auxiliary device according to claim 8, characterized in that: The extension rod (25) corresponds to a notch provided on the flat plate (21), the support member (23) is located above the flat plate (21), in the inner cavity, and the clamping block (24) is located above the flat plate (21).

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