Spray painting method for cruise ship pattern based on three-dimensional laser casting technology and application of spray painting method

Abstract

The invention provides a spray painting method for a cruise ship pattern based on a three-dimensional laser casting technology and application of the spray painting method. The method comprises the following steps of conducting three-dimensional reconstruction on a cruise ship two-dimensional pattern; extracting three-dimensional lines of the pattern; setting characteristic shapes for on-site real ship hull outer plates according to the projection area and numbering the on-site real ship hull outer plates; carrying out three-dimensional coordinate measurement on the hull outer plate feature points and the common alignment points, converting actually measured coordinates into a hull design coordinate system to achieve one-to-one correspondence between the positions of the common alignment points and the positions of real ships; carrying out alignment work on the three-dimensional laser demarcation device; and carrying out three-dimensional laser projection, and pattern drawing work on site according to lines, and completing rapid spraying of patterns. A total station measurement technology and a three-dimensional laser projection technology are introduced, so that the coating work of complex patterns and multiple curves of the cruise ship is solved, the pattern lines of the real ship are uniform and attractive, the symmetry precision is high, the time and cost loss is reduced, the potential safety hazard during construction is reduced, and the conversion of a cruise ship coating process mode is realized.

Description

technical field [0001] The invention relates to an inkjet painting method of a cruise ship pattern based on a three-dimensional laser projection technology and an application thereof, belonging to the application field of ship painting technology, and especially suitable for painting complex patterns of a cruise ship. Background technique [0002] The traditional pattern spraying method in the field of cruise ship painting generally adopts the method of manufacturing templates. For simple patterns and located in the plane area, the corresponding pattern template is made, and the on-site drawing ruler is used for positioning, and the template is fixed before spraying. However, when the pattern is complex, the size is large, and it is located on a curved surface with complex curvature such as the bow, it is very difficult to process the template produced by this method, and at this time the pattern is a three-dimensional pattern, and the precision of the template is low, the sp...

AI Technical Summary

Problems solved by technology

[0002] The traditional pattern spraying method in the field of cruise ship painting generally adopts the method of manufacturing templates. For simple patterns and located in the plane area, the corresponding pattern template is made, and the on-site drawing ruler is used for positioning, and the template is fixed before spraying. However, when the pattern is complex, the size is large, and it is located on a curved surface with complex curvature such as the bow, it is very difficult to process the template produced by this method, and at this time the pattern is a three-dimensional pattern, and the precision of the template is low, the speed is slow, and the efficiency is low. Low, high labor intensity, inconvenient work

At present, there is no 3D laser projection technology for large ships

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