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CN-121973908-A - Nondestructive leveling tool and method for ship folding plate seam

CN121973908ACN 121973908 ACN121973908 ACN 121973908ACN-121973908-A

Abstract

The invention discloses a nondestructive leveling tool and a leveling method for a ship folding plate seam, and relates to the technical field of ship folding plate seams; the adjusting device comprises a base, a plugboard assembly, a locking assembly and an adjusting assembly, wherein the plugboard assembly is fixedly arranged on the base and used for being inserted into a plate seam to be adjusted, the locking assembly is arranged on the base and used for locking the base on a plate seam mounting surface to be adjusted, and the adjusting assembly is arranged on the base and used for adjusting a plate seam adjusting surface to be adjusted. The mechanical operation modes of inserting and setting the positioning through the plugboard assembly, locking and fixing the locking assembly and matching the adjusting assembly with leveling replace the complicated steps of twice welding the code plates in the traditional process, multiple processing procedures of subsequent cutting, polishing, paint repairing and the like are omitted, the plate seam leveling can be completed only through simple operations of inserting, screwing, jacking and the like in the whole process, the operation flow is concise, the leveling process is rapid and efficient, and the whole construction period of ship folding plate seam leveling is greatly shortened.

Inventors

  • LI WENQIANG
  • ZHAO WEI
  • ZHANG MINGXUAN
  • MA XIAOTIAN

Assignees

  • 船世科技(北京)有限公司

Dates

Publication Date
20260505
Application Date
20260311

Claims (10)

  1. 1. Nondestructive leveling frock of board seam is folded to boats and ships, its characterized in that includes: A base (1); The plugboard assembly is fixedly arranged on the base (1) and is used for being inserted into a plate seam to be adjusted to realize accurate positioning of the tool and the plate seam; the locking component is arranged on the base (1) and used for locking the base (1) on a mounting surface of a plate seam to be adjusted so as to prevent the tool from being displaced; the adjusting component is arranged on the base (1) and is positioned above an adjusting surface of the plate seam to be adjusted, and is used for adjusting and locking the adjusting surface and keeping the plate seam leveling state; and the propping piece is arranged between the base (1) and the adjusting surface of the plate seam to be adjusted and is used for providing a propping force to eliminate the height difference at two sides of the plate seam.
  2. 2. The ship closure plate seam nondestructive leveling tool according to claim 1, wherein the plate inserting assembly comprises a strip plate (2), a through hole and a movable pin (8), the strip plate (2) extends downwards and vertically to be fixedly arranged on the base (1), the through hole is formed in the strip plate (2), the movable pin (8) is inserted into the through hole, and a limiting block is arranged at one end, facing the locking assembly, of the movable pin (8).
  3. 3. The ship closure plate seam nondestructive leveling tool according to claim 2, wherein the through holes and the movable pins (8) are rectangular, the base (1) is vertically provided with a mounting plate (9), the mounting plate (9) is provided with a fastening bolt (10), and the strip-shaped plugboard (2) is detachably and fixedly connected with the mounting plate (9) through the fastening bolt (10).
  4. 4. The ship folding plate seam nondestructive leveling tool according to claim 1 is characterized in that the locking assembly comprises a first screw sleeve (3) and a first screw rod (4), the first screw sleeve (3) is fixedly arranged on the base (1) and is attached to a mounting surface of a plate seam to be adjusted, the first screw rod (4) is in threaded connection with the first screw sleeve (3), the adjusting assembly comprises a second screw sleeve (5) and a second screw rod (6), the second screw sleeve (5) is fixedly arranged on the base (1) and is located above the adjusting surface of the plate seam to be adjusted, and the second screw rod (6) is in threaded connection with the second screw sleeve (5).
  5. 5. The ship closure plate seam nondestructive leveling tool according to claim 4, wherein the top ends of the first screw rod (4) and the second screw rod (6) are respectively provided with an adjusting head, the adjusting heads are of a hexagonal structure or a structure with a round knob, the first screw rod (4) and the second screw rod (6) are two in length and symmetrically distributed on two sides of the base (1), and the bottoms of the first screw rod (4) and the second screw rod (6) are designed to be automatically aligned.
  6. 6. The ship closure plate seam nondestructive leveling tool according to claim 1 is characterized in that the base (1) is of an L-shaped structure, is made of high-strength cast steel, is subjected to spraying protection treatment on the surface of the base (1), is a hydraulic jack (7), and is arranged in a manner that the center of the hydraulic jack (7) is centered with the stress center of a plate seam adjusting surface to be adjusted.
  7. 7. A ship closure panel seam nondestructive leveling method using the tooling of any one of claims 1-6, comprising the steps of: s1, inserting a strip-shaped plugboard (2) on a base (1) into a board seam to be adjusted, unscrewing a first screw rod (4) and a second screw rod (6), enabling the strip-shaped plugboard (2) to be fully attached to the board seam, and determining the board seam surface corresponding to the first screw rod (4) as a mounting surface and the board seam surface corresponding to the second screw rod (6) as an adjusting surface; S2, clamping and fixing, namely inserting a movable pin (8) into a through hole on the strip-shaped plugboard (2) from the back of the plate seam, limiting the movable pin (8) through a limiting block, enabling the plugboard assembly to clamp one side of the plate seam, and completing positioning connection of the tool and the plate seam; s3, locking the base (1), namely rotating an adjusting head of the first screw (4), enabling the first screw (4) to downwards screw and tightly attach to the mounting surface by matching with the movable pin (8), and locking the base (1) and the mounting surface into a whole; S4, jacking and leveling, namely placing the jacking piece subjected to pressure relief between the base (1) and the adjusting surface, ensuring centering, operating the jacking piece to perform jacking operation until mounting surfaces and adjusting surfaces at two sides of the slab joint are positioned on the same horizontal plane, and adjusting the jacking piece to a pressure maintaining state; and S5, locking a leveling state, namely rotating an adjusting head of the second screw (6), enabling the second screw (6) to be screwed downwards and closely attached to the adjusting surface, locking the adjusting surface, realizing plate seam leveling, and removing the pressing piece after the leveling is finished, so that plate seam welding operation can be performed.
  8. 8. The ship closure panel seam nondestructive leveling method according to claim 7, wherein in the step S1, the adapted strip-shaped insert plate (2) can be replaced by unscrewing the fastening bolts (10) according to the gap width and the plate thickness of the panel seam to be adjusted.
  9. 9. The ship closure plate seam nondestructive leveling method according to claim 7, wherein in the step S3, the first screw rod (4) is driven to screw in by a spanner or a manual screwing adjusting head, so that stepless locking of a mounting surface is realized, and mounting surfaces with different flatness are adapted.
  10. 10. The ship folding plate seam nondestructive leveling method according to claim 7, wherein in the step S5, after the first screw rod (4) and the second screw rod (6) are locked, elastic rebound of steel plates at two sides of the plate seam is limited by means of automatic alignment design of the bottoms of the first screw rod and the second screw rod, and leveling accuracy of the plate seam is continuously maintained.

Description

Nondestructive leveling tool and method for ship folding plate seam Technical Field The application relates to the technical field of ship closure plate seams, in particular to a ship closure plate seam nondestructive leveling tool. Background The ship manufacturing belongs to the field of manufacturing large-scale steel structure equipment, a ship body is formed by splicing and welding a plurality of steel plates, the ship body is objectively limited by the range of processing equipment, the transportation condition and the integral forming process, the integral processing production cannot be realized by the ship, and the core process modes of segmented prefabrication and on-site closure are generally adopted in the industry. The key process of the ship folding stage is steel plate butt joint assembly, the splicing gaps formed by a plurality of prefabricated steel plates in the folding process are ship folding plate gaps, the assembly accuracy of the plate gaps directly determines the overall assembly quality of the steel structure of the ship body, and the method is a core link for controlling the ship body forming effect in the ship manufacturing process. When the steel plates at the joint of the ship are spliced in a butt joint manner, the steel plates are easily influenced by various factors such as hoisting positioning precision, elastic deformation of the plates, site construction environment and the like, the problem of dislocation of the steel plates at the two sides of the joint occurs, and the phenomenon is called joint misalignment in the industry. If the plate seam is in a staggered state and is not accurately leveled, the subsequent main welding seam welding operation can generate defects of poor welding seam forming, uneven welding bead thickness, insufficient penetration and the like due to uneven butt joint surfaces of the steel plates, so that the welding strength of the welding seam and the sealing performance of a ship body can be reduced, the hidden danger of local stress concentration can also occur in the steel structure of the ship body, the navigation safety, the structural durability and the service life of the ship are seriously influenced, and therefore, the leveling of the ship folding plate seam is an indispensable pre-process before butt joint welding of the steel plates, and has important significance for guaranteeing the overall manufacturing quality of the ship. In the current ship manufacturing field, the traditional technology of welding the code plates is generally adopted for the leveling operation of the folding plate seam, and the technology realizes leveling and fixing by temporarily welding the code plates on the base materials of the plate seam; on the basis of plate seam leveling, an H-shaped fixed code plate is welded at the plate seam, the position of the plate seam after leveling is locked, and the steel plate is prevented from deforming again due to elastic rebound in the subsequent welding process. After the main weld joint of the plate seam is welded, flame cutting is carried out on the adjusting code plate and the fixing code plate welded on the base material, polishing and leveling treatment is carried out on the surface of the cut base material, and paint repairing repair is carried out on the damaged paint surface of the base material. The traditional leveling process has a plurality of obvious defects, the traditional leveling process is difficult to adapt to the development requirements of high efficiency and green of the modern shipbuilding industry, firstly, the leveling process needs to be divided into two times of welding of different types of code plates, and then needs to complete multiple processing procedures such as cutting, polishing, paint replacement and the like in a matched mode, the procedures are complicated, each link needs to be operated alternately, leveling operation efficiency is low, the overall construction period of ship closure is greatly prolonged, secondly, the high temperature of welding of the code plates can directly damage a paint surface protection layer on the surface of a base material, the cutting and polishing operation can also cause physical damage to the base material body, even if paint replacement treatment is carried out subsequently, the original protection performance and surface flatness of the base material are difficult to be completely restored, the local corrosion resistance of the base material is easy to be reduced, thirdly, welding smoke dust generated by the welding code plates, metal dust generated by cutting operation and fine particle dust generated by polishing operation can cause serious pollution to the operation environment, and meanwhile, high-strength noise generated in the welding, cutting and polishing processes also can harm the occupational health of operators, and do not meet the development requirements of the shipbuilding industry. Therefore, the inventor needs to design a new ship c