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

A laser three-dimensional and laser projector technology, which is applied in the field of laser three-dimensional projection positioning and laser three-dimensional projection positioning structure, can solve the problems of low efficiency of positioning and marking, large human influence, and cumbersome tooling, so as to reduce waste of resources and manpower, reduce Human influence, the effect of improving positioning accuracy

Active Publication Date: 2020-04-17
中国船舶集团渤海造船有限公司
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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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  • Method for positioning by using laser three-dimensional projection in hull construction

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Embodiment Construction

[0017] Projector fixed gantry 3 is set on the ground 7, below the gantry is the hull subsection structure 2, and laser projector 1 is fixed on the fixed gantry top, and the T-shaped profile profile 4 projected by the projector of the laser projector is irradiated on both sides. On the surface of the side segment structure, the segment structure is arranged on the segment structure tire frame 5, and a projector software system 6 is fixed by a bracket on the bottom surface of one side of the fixed door frame.

[0018] Describe the concrete implementation scheme that the present invention uses laser three-dimensional projection positioning T profile structure position on the hull section below in conjunction with technical scheme, its implementation steps are as follows:

[0019] 1) Hull structure model processing: Simplify the 3D data model of the hull segment and T-shaped structure, eliminate the model data irrelevant to the structure positioning projection, keep only the points...

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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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B73/60
Inventor 王汉升臧鹏飞刘歆郑永红闵志印刘伟郭知峰
Owner 中国船舶集团渤海造船有限公司
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