Method of abutting joint of two total segments in shipbuilding process

A docking surface and hull technology, applied in ship parts, ship construction, ships, etc., can solve the problems of uneven structure of the docking panel mouth, excessive clearance, and excessive clearance, so as to reduce the workload of cutting and repairing the hull and improve the Docking accuracy and speed, reducing the effect of two positioning accidents

Inactive Publication Date: 2010-06-23
DALIAN SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the uneven structure of the butt panel opening (closed seam), the local structure is "squeezed" and re-cut
[0004] 2. Some parts need to change the board due to the large gap
[0

Method used

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  • Method of abutting joint of two total segments in shipbuilding process
  • Method of abutting joint of two total segments in shipbuilding process
  • Method of abutting joint of two total segments in shipbuilding process

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Embodiment Construction

[0013] like figure 1 As shown, the laser theodolite is used to measure the flatness of the butt joint. First, the setting of the laser theodolite must be perpendicular to the center line of the hull. If the marking line detection is out of tolerance, it must be trimmed, and the excess part must be cut. Degree tolerance ≤ 2mm. figure 1 In , the selection surface of the lens of the laser theodolite should be orthogonal to the centerline of the hull.

[0014] The same planarity measurement requirements of the joints of the general section of the present invention strictly control the same planarity of the seams of the first general section and the second general section. And measure the deflection of the base line at the bottom of the ship by using the base line on the closing pole, so as to determine the slope of the base line. When the slope of the baseline is zero, the upper surface of the pier shall be level before the floating positioning of the 2nd general section. When ...

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Abstract

The invention relates to a method of abutting joint of two total segments in the shipbuilding process, which utilizes a laser theodolite to measure the same surface degree of an abutting joint seam. The laser theodolite must be arranged to be orthogonal with the center line of a hull. Under the condition of a ruling line detected to be beyond a size, the remain is cut to ensure the surface degree tolerance of a finished abutting joint surface to be at most 2 mm. The method increases the construction abutting joint accuracy and speed of the two total segments and reduces hull trimming workload and the occurring of two positioning accidents. The laser theodolite is used to measure, score and finish an end surface, and firstly the same surface degree of the abutting joint surface and the orthogonality of the abutting joint surface and a center surface must be ensured. A baseline on a bottom folding target rod is utilized to measure the deflection degree of the bottom baseline, therefore the slope of the baseline is determined, and finally the method ensures the angle between the abutting joint plane and a baseline surface to be a right angle.

Description

technical field [0001] The invention relates to the shipbuilding industry, more specifically, to a positioning method for the docking of two general sections in shipbuilding. Background technique [0002] The following phenomena often occur in the docking of the two general sections of the ship in the prior art: [0003] 1. Due to the uneven structure of the butt panel opening (closed seam), the local structure is "squeezed" and re-cut. [0004] 2. Some parts need to change the board because of the large gap. [0005] 3. What's more, after the positioning and closing of the general section, the gap needs to be repaired due to serious gaps, refilling, floating, and secondary positioning accidents. Contents of the invention [0006] In order to reduce the work of cutting and repairing, the present invention provides a set of technical requirements for measuring the accuracy of the hull of the docking surface of the two general sections of large dock shipbuilding, so as to ...

Claims

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Application Information

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IPC IPC(8): B63B9/06
Inventor 宫照明杨玉波陈奎杨向荣李慧君
Owner DALIAN SHIPBUILDING IND
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