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CN-224209419-U - Pipeline butt welding auxiliary fixtures

CN224209419UCN 224209419 UCN224209419 UCN 224209419UCN-224209419-U

Abstract

The utility model discloses an auxiliary tool for pipeline butt welding, when a pipeline and a neck of a necked flange are required to be butt welded, one end of the pipeline is placed in a part of the length area of a pipeline alignment groove, the position of an alignment frame relative to a propping piece is adjusted, so that the extending length of the alignment frame relative to the pipeline is matched with the length of the neck of the necked flange, the propping piece can be kept at a position of the pipeline close to the end, then the propping piece is close to and props against the pipeline, the auxiliary tool for pipeline butt welding is positioned at one end of the pipeline, and then the neck of the necked flange can be placed in the extending pipeline alignment groove for auxiliary alignment, so that the butt welding of the pipeline and the pipe end of the necked flange can be assisted. The auxiliary pipeline butt welding tool can be suitable for butt welding of pipe ends between two pipelines and pipe ends of the pipelines and the neck flange, and is good in universality.

Inventors

  • YUE CHANGSHENG
  • ZHANG WEI
  • Fang Qiuwu
  • SONG HUAQING
  • YANG ZIJIAN
  • Peng Kexiao

Assignees

  • 中山凯旋真空科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250421

Claims (10)

  1. 1. Pipeline butt welding auxiliary fixtures, its characterized in that includes: A base (100); The alignment frame (200) is arranged on the base (100), the alignment frame (200) comprises two alignment plates (210) arranged at an included angle, and a pipeline alignment groove (201) is formed between the two alignment plates (210); The jacking structure (300) is arranged on the base (100) and is positioned on one side of the alignment frame (200), the jacking structure (300) is opposite to the notch of the pipeline alignment groove (201), and the jacking structure (300) is arranged on the base (100) in an adjustable position and can be close to or far away from the pipeline alignment groove (201); the alignment frame (200) is movably arranged on the base (100) along the length direction of the pipeline alignment groove (201), so that the distance between one end of the alignment frame (200) and the jacking structure (300) can be adjusted along the length direction of the pipeline alignment groove (201).
  2. 2. The pipeline butt welding auxiliary tool according to claim 1, wherein the base (100) is provided with a chute (110) along the length direction of the pipeline alignment groove (201), and the alignment frame (200) is slidably arranged in the chute (110).
  3. 3. The pipeline butt welding auxiliary tool according to claim 1, wherein one ends of the two alignment plates (210) are in butt joint, the alignment frame (200) is provided with a spot welding yielding through hole (202), the spot welding yielding through hole (202) is located at the butt joint position of the two alignment plates (210), the spot welding yielding through hole (202) is communicated to the bottom of the pipeline alignment groove (201), and the butt joint position of the two alignment plates (210) is located on the moving axis of the jacking structure (300) relative to the base (100).
  4. 4. The pipeline butt welding auxiliary tool according to claim 3, wherein the spot welding yielding through holes (202) are strip-shaped and extend along the length direction of the pipeline alignment groove (201), and the spot welding yielding through holes (202) are provided with at least two and are distributed at intervals along the length direction of the pipeline alignment groove (201).
  5. 5. The pipeline butt welding auxiliary tool according to claim 3, wherein the base (100) is provided with a yielding gap (120), and the yielding gap (120) is opposite to and communicated with the spot welding yielding through hole (202).
  6. 6. The auxiliary tool for pipeline butt welding according to claim 3, wherein the two alignment plates (210) are integrally formed, and the alignment frame (200) is angle steel.
  7. 7. The pipeline butt welding auxiliary tool according to claim 1, wherein the base (100) is provided with a threaded through hole, a hole axis of the threaded through hole is arranged along the depth direction of the pipeline alignment groove (201), the jacking structure (300) comprises a threaded fastener (310), and the threaded fastener (310) is in threaded connection with the threaded through hole.
  8. 8. The pipeline butt welding auxiliary tool according to claim 7, wherein the alignment frame (200) further comprises two alignment rollers (220), the alignment rollers (220) are arranged along the length direction of the pipeline alignment groove (201), the two alignment rollers (220) are in one-to-one corresponding rotary connection with the two alignment plates (210), the pressing structure (300) is rotatably provided with balls (320), and the balls (320) are located at one end, close to the pipeline alignment groove (201), of the pressing structure (300).
  9. 9. The pipeline butt welding auxiliary tool according to claim 8, wherein the jacking structure (300) further comprises a mounting frame (330), the balls (320) are rotatably arranged on the mounting frame (330), the balls (320) are partially exposed relative to the mounting frame (330), the mounting frame (330) is arranged at one end, close to the pipeline alignment frame (201), of the threaded fastener (310), and the alignment frame (200) is detachably connected to the base (100).
  10. 10. The pipeline butt welding auxiliary tool according to claim 9, wherein the mounting frame (330) comprises a frame main body (331) and a mounting nut (332), the ball (320) is rotatably connected to the frame main body (331), the mounting nut (332) is fixedly connected with the frame main body (331), the threaded fastener (310) is a bolt, and the mounting nut (332) is in threaded connection with the bolt.

Description

Pipeline butt welding auxiliary fixtures Technical Field The utility model relates to pipeline welding, in particular to an auxiliary tool for pipeline butt welding. Background Some existing pipelines sometimes need to be butt welded with another pipeline, and an auxiliary tool for pipeline butt welding can be adopted to assist in alignment between the end and the other pipeline before welding. The existing pipeline butt welding auxiliary fixture is characterized in that an alignment frame is fixed on a base, the alignment frame is provided with two alignment plates with included angles, two alignment plates form a pipeline alignment groove, and a propping piece is positioned on one side of the alignment frame and can face or be far away from the pipeline alignment groove to adjust the position. When the pipeline aligning device is used, the pipeline is placed in a part of the length area of the pipeline aligning groove, the pipeline is abutted against the position close to one end of the pipeline through the jacking piece, at the moment, the two aligning plates and the jacking piece are in three contact with each other to be positioned on the pipeline, the part of the length of the aligning frame extends out to allow a worker to hold the other pipeline to be placed in the pipeline aligning groove, the two aligning plates are utilized for rapid alignment, and then the other hand is welded to the abutting joint gap. Sometimes, the periphery of the pipeline is not smooth enough, and the propping piece needs to be abutted against the position, close to the end part, of the pipeline, so that the alignment frame is attached to the end part area of the pipeline as much as possible, and the alignment accuracy is improved. However, some pipelines need to be welded with the neck of the neck flange at the end part, the neck of the neck flange is shorter, and in order to avoid the flange part of the neck flange, the alignment frame can be shorter relative to the extending part of the pipeline, so that the alignment frame and the propping piece need to be moved backwards to prop against the position of the pipeline far away from the end part, and the accuracy of pipe end butt welding is affected. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the auxiliary tool for pipeline butt welding provided by the utility model can be suitable for pipe end butt welding between two pipelines and pipe end butt welding of a pipeline and a necked flange, and has good universality. The pipeline butt welding auxiliary tool comprises a base, an alignment frame and a jacking structure. The aligning frame is arranged on the base, the aligning frame comprises two aligning plates which are arranged at an included angle, a pipeline aligning groove is formed between the two aligning plates, the jacking structure is arranged on the base and is positioned on one side of the aligning frame, the jacking structure is opposite to a notch of the pipeline aligning groove, the jacking structure is arranged on the base in an adjustable position and can be close to or far away from the pipeline aligning groove, the aligning frame is movably arranged on the base along the length direction of the pipeline aligning groove, and therefore the distance between one end of the aligning frame piece and the jacking structure can be adjusted along the length direction of the pipeline aligning groove. The auxiliary pipeline butt welding tool has the advantages that when pipeline and neck of a neck flange are needed to be butt welded, one end of a pipeline is placed in a part of the length area of a pipeline alignment groove, the position of an alignment frame relative to a pressing piece is adjusted, the extending length of the alignment frame relative to the pipeline is matched with the length of the neck flange, the pressing piece can be kept at the position of the pipeline close to the end, then the pressing piece is close to and abuts against the pipeline, the auxiliary pipeline butt welding tool is positioned at one end of the pipeline, then the neck of the neck flange is placed in the extending pipeline alignment groove to be in auxiliary alignment, so that the butt welding of the pipeline and the pipe end of the neck flange can be assisted, when two conventional pipelines are needed to be butt welded, the alignment frame can be adjusted relative to the pressing piece until the alignment frame is relatively uniformly contacted with the two conventional pipelines respectively, the position of the pressing piece and a certain pipeline close to the end is abutted, and the auxiliary pipeline butt welding tool can be suitable for the pipe end between the two pipelines and the pipe end of the neck flange and has good universality. According to some embodiments of the utility model, the base is provided with a chute along the length direction of the pipeline alignment gr