Sectionalized assembling method for ship bow luff part

Abstract

The invention relates to a total assembly method for the section-dividing of shipping and shipboard parts, used for solving the problems of inconvenient operation and poor precision when the total assembly of a plurality of sections is carried out; the invention comprises the steps that (1) the plurality of sections are seen as an integrated section, and the assembly jig plane is obtained through longitudinal, transverse and oblique cutting on the integrated section; (2) a plurality of key points are obtained on the integrated section, the 3-d coordinates of all key points are found out and the vertical distance from each key point to the assembly jig plane; (3) the ground is taken as the assembly jig plane and supporting columns are correspondingly arranged on the lower part of all the key points; (4) a plurality of sections are respectively and correspondingly hung on the supporting columns for positioning, assembling and welding and overturning, thus implementing the total assembly of all sections. The method of the invention positions all unit sections to be totally assembled according to dimensions, thus reducing energy consumption and improving total assembly efficiency; the process solves the difficulty of large section for total assembly with large bidirectional linear change, thus saving a plurality of assembly jig materials and greatly improving the site turnaround efficiency of the total assembly, and improving the operation environment of the constructors.

Description

technical field [0001] The invention relates to ship building, in particular to a general assembly method of ship bow sections. Background technique [0002] The structural shape of the existing ship and the bow and side of the ship are all irregular streamlined curved surfaces. In the process of ship construction, the bow side is composed of sections of different structures. Except for the irregular slope on the outside, the rest of the sections are irregular structures. In view of the fact that the outer and inner sides of the ship segments are of irregular structure, various methods are required to ensure the accuracy of each segment when assembled on the hull, so as to ensure the smooth and effective progress of ship construction. [0003] Among the prior art, the main steps of the general assembly method for the ship's bow and side sections are as follows: first, lay the tire frame of the segmented general group on the berth or dock, the tire frame is composed of a plu...

AI Technical Summary

Problems solved by technology

[0005] ①It is relatively simple to select the plane of the tire frame by adopting the method of plane vertical one size fits all, and the height of the corresponding support column is also easy to determine, but there are disadvantages that the height of some support columns is too high, which wastes a lot of tire frame and scaffolding materials

[0006] ②Using the ground or dock surface as the plane of the tire frame, placing each segment on the tire frame will result in a large difference in height of the segments, and the height difference from the highest point to the lowest point of the tire frame plane will reach 5 meters, which will cause welding Increased risk factor during construction

[0007] ③ The general group between the irregularly shaped sections will bring construction difficulties, the energy consumption of the general group will increase, and the efficiency of the general group will be low

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