Shipbuilding precision control method utilizing unilateral datum

Abstract

The invention discloses a shipbuilding precision control method utilizing unilateral datum, which comprises the following steps that: a datum line is arranged on a datum edge of the unilateral datum from the beginning of a blanking stage, the datum line is from the beginning of butt joint of parts to the end of carrying, and the datum line is used for a long time and is a datum for realizing butt joint line shipbuilding; when a ship body works, all parts are assembled or segmented, lineation is carried out on a unified datum according to the same size, and the lineation is used as a datum which is set for guiding field operation personnel to ensure that a good ship body is manufactured in the assembling and total assembling / carrying stage. Unilateral datum construction application standardization is achieved through design, production, inspection and feedback design improvement, and the construction technology is formed. According to the method, the unified datum of the whole ship is improved, a previous cross curve shipbuilding process method is replaced, the serious phenomenon of the repairing and cutting rate caused by margins existing all around in the past is improved, meanwhile, the repairing and cutting process is moved forwards, the original groove retention rate is increased, the dock tool opening rate is reduced, and cost reduction and gain are achieved.

Description

technical field [0001] The invention belongs to the field of shipbuilding, and in particular relates to a shipbuilding precision control method using a unilateral datum. Background technique [0002] At present, it is in the promotion and deepening stage of the modeling 2.0 work. The indicators such as sub-docking without margin and original bevel retention are the new development direction of modern shipbuilding. These two items belong to the field of precision control, so precision shipbuilding is a It is particularly important for enterprises to enhance their core competitiveness. In the early 1980s, China began to research and promote precision shipbuilding. Although my country has made some progress in precision shipbuilding, there is still a certain gap between China and Japan, South Korea and other advanced shipbuilding powers. According to incomplete statistics, the original bevel of Samsung Shipyard in South Korea The retention rate has reached 93%, and the undockin...

AI Technical Summary

Problems solved by technology

However, as the cumulative error gradually increases, it will inevitably result in large-area trimming of the margin of the subsequent process (general assembly / installation), and the cost of trimming at the general assembly / installation stage is much higher than that of the intermediate product construction stage. This gain concept is contrary to the idea, which is not conducive to the improvement of the original groove retention rate in the general assembly / loading stage, and is not conducive to the quick release of the hook in the general assembly / loading stage

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