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CN-122007574-A - Full-automatic arc welding device for steel coil

CN122007574ACN 122007574 ACN122007574 ACN 122007574ACN-122007574-A

Abstract

The invention discloses a full-automatic arc welding device for steel coils, which relates to the technical field of welding equipment and comprises a roller frame, a welding flux recycling machine, a welding component, a supporting frame, a lifting component and a feeding component, wherein the roller frame is used for supporting and driving a steel coil pipe to rotate, a suction nozzle of the welding flux recycling machine is positioned behind the advancing direction of the welding flux component, the lifting component is arranged on the supporting frame, the movable end of the lifting component is used for driving the welding component to adjust the position along the vertical direction, and the movable end of the feeding component is used for driving the welding component to axially move along the steel coil pipe. According to the invention, through the cooperative adjustment of the lifting component and the feeding component, the thick plate welding is divided into multiple layers of welding, so that the welding wires can fill the grooves layer by layer, the whole thickness of the welding seam is gradually covered from the root to the surface layer, the problem that the welding wires are difficult to penetrate into the root of the thick plate welding seam in single welding is solved, the defects of unfused, unfused and the like are effectively avoided, and the fusion quality of the thick plate welding seam is ensured.

Inventors

  • LIU DIANQIANG
  • WANG SHENGLI
  • ZHANG KEMING
  • WANG FENGZHONG
  • LUO XUERUI

Assignees

  • 天津磊峰科技有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (8)

  1. 1. The full-automatic arc welding device for the steel coil comprises a roller frame (2) for supporting and driving the steel coil tube to rotate, a flux recycling machine and a welding part (11), and is characterized by further comprising: A support (1); The lifting component (4) is arranged on the supporting frame (1), the movable end of the lifting component is used for driving the welding component (11) to adjust the position along the vertical direction, and the lifting component is matched with the roller frame (2) to turn over the steel coil pipe so as to meet the double-sided welding requirement of the inside and the outside of the pipe; the feeding component is arranged at the movable end of the lifting component (4), and the movable end of the feeding component is used for driving the welding component (11) to axially move along the steel coil pipe; A slag removal component for removing flux slag in the weld bead; the signal acquisition component comprises a first distance sensor for acquiring depth data of the middle part of the welding bead and a second distance sensor for acquiring depth data of different points of a slope of the welding bead, wherein the two second distance sensors are arranged side by side in the front-rear feeding direction; The data processing component is used for receiving depth data of the middle part of the welding bead and the depth data of different points of the slope, calculating a groove inclination angle by utilizing a trigonometric function relation according to the distance between the two distance sensors and the acquired depth difference, and then calculating by combining the groove inclination angle and the middle depth data to obtain feeding speed control data of the next welding; and the command generating part is used for generating a feeding command according to the feeding speed control data, transmitting the feeding part and controlling the feeding speed of the feeding part.
  2. 2. The full-automatic arc welding device for steel coils, as set forth in claim 1, characterized in that the feeding part comprises a linear sliding table module (301), a movable part of the linear sliding table module (301) is fixedly connected with a supporting table (302), one side of the supporting table (302) is fixedly connected with a vertically arranged sliding rail (303), the outer part of the sliding rail (303) is slidably connected with a sliding block (304), the movable end of the lifting part (4) is fixedly connected with a sliding sleeve (305), one side of the sliding block (304) is fixedly connected with a supporting arm (306), one end of the supporting arm (306) far away from the sliding block (304) penetrates through the sliding sleeve (305) and is fixedly connected with a mounting frame (10), the welding part (11) is fixedly mounted on the side wall of the mounting frame (10), and the supporting arm (306) is contacted with the inner wall of the sliding sleeve (305).
  3. 3. The full-automatic arc welding device for steel coils, as set forth in claim 2, characterized in that the slag removing part comprises an end block (501) fixedly connected to the movable end of the lifting part (4), one side of the end block (501) is fixedly connected with a transmission frame (502), the top of the transmission frame (502) is slidably connected with a knife holder (506), one side of the knife holder (506) is provided with a shovel blade (508), the bottom of the transmission frame (502) is fixedly provided with a first motor (503), the output end of the first motor (503) extends to the inside of the transmission frame (502) and is fixedly connected with an L-shaped plate (504), the bottom of the knife holder (506) is rotatably connected with a pulley (509), one side of the L-shaped plate (504) is contacted with the pulley (509), one side of the knife holder (506) away from the shovel blade (508) is symmetrically and fixedly connected with two pressing rods (505), one end of the pressing rods (505) away from the knife holder (506) penetrates to the other side of the end block (501) and is fixedly connected with a limiting block, and the pressing rods (505) are connected with the end block (501) in a sliding way, and the pressing rods (505) are connected with the outside of the knife holder (501) and the end block (501) is positioned between the pressing rods (507 and the outer part; the movable end of the lifting component (4) is provided with a pushing component and a resetting component, the pushing component is used for pushing the end block (501) to intermittently move along the axial direction of the steel coil pipe, and the resetting component is used for driving the end block (501) to reset after slag removal is completed.
  4. 4. The full-automatic arc welding device for steel coils, as set forth in claim 3, characterized in that the pushing assembly comprises a clamping seat (603) fixedly connected to the movable end of the lifting component (4), the clamping seat (603) is fixedly connected with the sliding block (304), a plurality of level slots (605) are formed in one side of the clamping seat (603) at equal intervals, two square holes are formed in the end block (501), a first square rod (601) and a second square rod (602) are respectively and slidingly connected to the inside of the two square holes, wedge block bolt structures (604) are fixedly connected to one ends of the first square rod (601) and the second square rod (602), the wedge block bolt structures (604) are matched with the level slots (605), one end, far away from the wedge block bolt structures (604), of the first square rod (601) is fixedly connected with the tool apron (506), and one end, far away from the wedge block structures (604), of the second square rod (602) is fixedly connected with the transmission frame (502).
  5. 5. The full-automatic arc welding device for steel coils, as set forth in claim 4, characterized in that the reset assembly comprises a second motor (707) fixedly connected to one side of the sliding block (304), an output end of the second motor (707) is fixedly connected with a take-up reel (708), a traction rope is wound on the take-up reel (708), the traction rope is fixedly connected with an end of the second square rod (602), a fixed plate (701) is fixedly connected to a movable end of the lifting component (4), a sliding rod (702) is slidingly connected to the fixed plate (701), one end of the sliding rod (702) is fixedly connected with the clamping seat (603), one end of the sliding rod (702) is far away from the clamping seat (603) and extends to the other side of the fixed plate (701) and is fixedly connected with a cushion block (703), a second spring (704) is sleeved between the cushion block (703) and the fixed plate (701), an electromagnet (706) is fixedly installed on one side of the fixed plate (701) far away from the clamping seat (603), and one side of the fixed plate (603) is close to the fixed plate (701) and is fixedly connected with the electromagnet (705) in a surrounding mode.
  6. 6. The full-automatic arc welding device for steel coils, as set forth in claim 5, characterized in that the bottom of the end block (501) is fixedly connected with a collecting box (801), the base of the roller frame (2) is symmetrically and fixedly connected with a mounting plate (803), the tops of the mounting plate (803) are fixedly connected with guide cabins (802), the guide cabins (802) are provided with two guide portions and are symmetrically distributed on two sides of the steel coil pipe, the guide cabins (802) comprise a guide portion and an anti-sprinkling portion fixedly connected to the tops of the guide portion, the distance between the tops of the two anti-sprinkling portions is larger than the diameter of the steel coil pipe, and the bottoms of the guide portions are obliquely arranged.
  7. 7. The full-automatic arc welding device for steel coils, which is characterized in that one end, far away from a cutter seat (506), of a scraper knife (508) is wedge-shaped, the wedge angle of the scraper knife is 30-45 degrees, the surface of the scraper knife (508) is covered with a wear-resistant coating, the cutter seat (506) is connected with the scraper knife (508) through a spherical hinge, and a locking bolt for adjusting the angle of the scraper knife (508) is arranged on the cutter seat (506).
  8. 8. The full-automatic arc welding device for steel coils, as set forth in claim 7, characterized in that a pushing plate (9) is fixedly connected to one side of the welding gun head of the welding component (11) far away from the supporting frame (1).

Description

Full-automatic arc welding device for steel coil Technical Field The invention relates to the technical field of welding equipment, in particular to a full-automatic arc welding device for steel coils. Background From the production process division, the welded steel pipe mainly comprises three types of resistance welded pipe, spiral submerged arc welded pipe and longitudinal submerged arc welded pipe. The spiral submerged arc welded pipe is distributed in a spiral mode due to the welding seams, the number of the welding seams is large, the structure is relatively complex, and risks are prone to occurring when the welding seams are stressed for a long time or fluid is conveyed. Therefore, in the scenes of extremely high requirements on safety and reliability such as important long-distance oil and gas conveying pipelines, the longitudinal submerged arc welded pipe is the optimal choice. However, the existing longitudinal submerged arc welded pipe production process generally has the problem of over-high cost, namely equipment investment, energy consumption and process cost are all at a high level, and the current situation severely restricts the popularization and application of the longitudinal submerged arc welded pipe, so that the longitudinal submerged arc welded pipe is difficult to replace other welded pipes in more fields. The main production processes of longitudinal submerged arc welded pipes in the current industry mainly comprise a UOE production process, a JCOE production process and an RBE production process, wherein a three-roller round rolling machine is used for rolling a fixed-length steel plate into a round shape step by step, spot welding is completed through a manual welding machine, and longitudinal submerged arc welded pipes are formed through inner welding and outer welding procedures. But is limited by the effective working length of a three-roller rolling machine, the length of a steel pipe formed by single rolling is shorter, a plurality of steel pipes are needed to be butt welded to obtain a standard longitudinal submerged arc welded pipe with a fixed length of 12 meters, the production technology is relatively backward, the efficiency is low, the whole quality of the steel pipes is difficult to guarantee due to the increase of butt welding seams, most of the steel pipes can only be applied to the field of structural pipes, the steel pipes are difficult to enter the field of high-end oil gas transportation with strict requirements on quality, and the economic benefit is poor. Aiming at the problems, the prior art provides a production method and production equipment (publication No. CN 102274871B) of a longitudinal submerged arc welded pipe, the patent describes a production method and production equipment of the longitudinal submerged arc welded pipe, belongs to the technical field of production and processing of the longitudinal submerged arc welded pipe, and particularly relates to a technology for producing a longitudinal submerged arc welded pipe with a small diameter; the invention provides a production method and production equipment of a longitudinal submerged arc welded pipe, which have the advantages of high production efficiency, small equipment investment and low energy consumption and can meet the technical requirements of oil and gas pipes; the longitudinal submerged arc welded pipe production method is characterized by adopting a continuous feeding mode, wherein the continuous feeding mode comprises the steps of steel coil uncoiling, straight head straightening and leveling, and the steps of steel coil uncoiling, straight head straightening and leveling are placed on a flying welding vehicle which can advance along with the steel coil advancing speed, and shearing, groove milling and butt welding processes are added on the flying welding vehicle. However, the scheme still has obvious defects in practical application, namely firstly, aiming at the defects that when thick-wall steel plates with the thickness of more than 20mm are welded, welding wires of the existing welding parts are difficult to fully permeate into the root of a welding line, unfused, incomplete welding and the like are easy to occur, the quality requirement of a thick-wall oil gas conveying pipe cannot be met, secondly, after the steel plates are rolled and formed, in order to promote the welding wires to permeate into the welding line, groove treatment is usually carried out on the inside and the outside of the pipe, the volume corresponding to different welding bead depths is different, the required welding flux amount is also different, the scheme does not mention an effective means for dynamically adjusting the welding flux according to the groove depths, the problem that the welding bead is sunken or piled up easily occurs, the forming quality of the welding line is influenced, finally, the welding process of the inside and outside of the pipe is required to be carried out in a layered and seg