Method for positioning by using laser three-dimensional projection in hull construction

Abstract

The invention provides a method for positioning by using laser three-dimensional projection in hull construction. A projector fixing portal frame is arranged on the ground. A ship body segmented structure is arranged below the portal frame, a laser projector is fixed to the upper portion of the fixed portal frame, the outline of a T-shaped profile projected by the projector of the laser projectorirradiates the faces of the segmented structures on the two sides, the segmented structures are arranged on a segmented structure jig frame, and a projector software system is fixed to the bottom faceof one side of the fixed portal frame through a support. T-shaped material structure positioning point and line projection is carried out through the steps of ship body structure model processing, projection coordinate system conversion, establishment of a ship body T-shaped material structure projection positioning file, format importing into a laser projector software system, establishment of aprojected ship body structure real coordinate system, establishment of an operation package and projection operation. The positioning precision of the hull structure can be detected through laser projection images. The method is suitable for being applied to laser three-dimensional projection positioning in hull construction.

Description

technical field [0001] The invention belongs to the technical field of ship building, and relates to a method for using laser three-dimensional projection positioning structure in ship building. Specifically, it is a method of using laser three-dimensional projection positioning in hull construction. Background technique [0002] In the process of hull construction of traditional steel ships, the hull structure has been positioned by manual marking, but manual marking has many disadvantages, including poor positioning accuracy, large human influence, and difficulty in artificial construction. The complex structure of the area makes manual measurement difficult, the efficiency of positioning and marking is low, and the positioning detection is difficult, and the amount of repeated modification is large. Some heavy tooling tools are required. The tooling is generally heavy and easy to wear and deform. It also requires storage space and regular maintenance. [0003] This meth...

AI Technical Summary

Problems solved by technology

[0002] In the process of traditional steel ship hull construction, the hull structure has been positioned by manual marking, but manual marking has many disadvantages, including poor positioning accuracy, large human influence, and difficulty in artificial construction. The complex structure of the area makes manual measurement difficult, the efficiency of positioning and marking is low, and the positioning detection is difficult, and the amount of repeated modification is large. Some heavy tooling tools are required. The tooling is generally heavy and easy to wear and deform. It also requires storage space and regular maintenance

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