Ship anchor bolt installation scribing method

Abstract

The invention discloses a ship anchor bolt installation scribing method which comprises the steps that a first datum line is scribed on a deck in advance in the captain direction or the ship width direction of a ship, then a second datum line is scribed at a distance of n references from the first datum line, the distance between the first datum line and the second datum line is measured and compared with design requirements, the second datum line is determined if the condition is met, and the position of the second datum line is adjusted if the condition is not met; and finally, a following third datum line is scribed to the x <the> datum line according to the method, so that the datum lines are scribed correspondingly in the captain direction and the ship width of the ship, and small grids are equally scribed according to the distance between every two adjacent datum lines to determine the forming position of anchor bolt mounting holes. Position errors of structural parts generate onthe deck during the assembly process of the ship can be dispersed into each large grid, and the small grids are scribed by evenly dividing the large grids, so that the errors are divided and digestedby each small grid divided on the deck.

Description

technical field [0001] The invention relates to the technical field of ship building, in particular to a method for marking out lines for installing anchor bolts of ships. Background technique [0002] In some special ships, due to the special nature of their work, it is necessary to place and fix scientific research and test equipment arbitrarily within a certain range on each deck. Therefore, it is necessary to set a large number of anchor bolts on the deck of the ship to realize the The requirement that the equipment be fixed at any position on the deck. And because the connecting parts of each scientific research test equipment and the deck are all made according to the same standard, there is a correlation between the spacing distances between the openings on the deck. On a specific scientific research ship, it includes four decks, a large number of anchor bolts are set on each deck, a total of about 1500, and any four adjacent anchor bolts are a group, it is necessary...

AI Technical Summary

Problems solved by technology

Use existing technical methods to mark lines, open holes and install anchor bolts. Since there are many anchor bolt installation holes that need to be opened on the deck surface, and the positions are related to each other, if the whole is drawn one by one from one side of the deck to the other , when it reaches the end of the other side or somewhere, the overall accumulation of errors will be too large, resulting in too large a deviation of the distance between the bolt and the structure, which will affect the installation of the connecting elbow (the distance between the center of the bolt and the adjacent structural parts in the design requirements It is basically 100mm), which leads to the fact that the anchor bolts that have already been marked in the previous part or have been drilled and installed need to be re-marked or removed and then repaired and cut and re-installed, and even a large-scale replacement of the deck occurs (drilling error too large to be corrected), will cause a lot of rework and a lot of waste of materials and labor

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