The invention belongs to the technical field of groove-shaped keel bottom plate machining, and discloses a groove-shaped keel bottom plate lofting method and a groove-shaped keel bottom plate machining method.The groove-shaped keel bottom plate lofting method comprises the steps that a front view of a groove-shaped keel bottom plate and a cutaway view of the front view along the middle longitudinal line of a ship are obtained, and the actual length of each groove bottom plate is obtained based on the cutaway view; obtaining the actual length of each rib line based on the front view, drawing an expanded view of the groove bottom plate, connecting the diagonal lines of the side plates of the plurality of segmented keel bottom plates in the front view, measuring to obtain the projection length of the diagonal lines, obtaining the actual length of the diagonal lines based on the projection length of the diagonal lines, and displaying the actual length of the diagonal lines. And drawing the expanded drawings of the side plates in the expanded drawings of the groove bottom plates based on the actual lengths of the diagonal lines to obtain the expanded drawings of the groove type keel bottom plates, so that the groove bottom plates and the side plates are sequentially expanded and are positioned in the same lofting expanded drawings, errors are reduced, and subsequent splicing operation is omitted.
本发明属于槽型龙骨底板加工技术领域,公开了槽型龙骨底板放样方法及槽型龙骨底板加工方法,该槽型龙骨底板放样方法中,获取槽型龙骨底板的正视图以及正视图沿船舶中纵线的剖视图,基于剖视图获取各个槽底板的实际长度,基于正视图获取各个肋骨线的实际长度,并绘制槽底板的展开图,在正视图中,连接多个分段龙骨底板的侧板的对角线,并测量得到对角线的投影长度,基于对角线的投影长度获取对角线的实际长度,基于对角线的实际长度在槽底板的展开图中绘制侧板的展开图,以得到槽型龙骨底板的展开图,从而将槽底板以及侧板依次展开,且槽底板以及侧板位于同一放样展开图中,减少误差,且省略了后续的拼接操作。
Groove-shaped keel bottom plate lofting method and groove-shaped keel bottom plate machining method
槽型龙骨底板放样方法及槽型龙骨底板加工方法
2023-11-24
Patent
Electronic Resource
Chinese
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