Ocean passenger ship structure segmented welding position automatic calculation method

A segmented welding and automatic calculation technology, applied to welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of long time consumption and high cost, and achieve the effect of improving rationality and reducing waste

Active Publication Date: 2020-12-25
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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Problems solved by technology

Ship welding is t...

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  • Ocean passenger ship structure segmented welding position automatic calculation method
  • Ocean passenger ship structure segmented welding position automatic calculation method
  • Ocean passenger ship structure segmented welding position automatic calculation method

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Embodiment

[0042] A method for automatically calculating segmental welding positions of an ocean-going passenger ship structure, comprising the following steps:

[0043] S1. Expand and refine the assembly tree to the weld level;

[0044] S2. Classify and aggregate the weld nodes at all levels on the assembly tree;

[0045] S3. Determine the weld seam welding stage after classification aggregation;

[0046] S4. Determine the subassembly construction direction;

[0047] S5. Determine when and in what posture each part should be assembled, that is, under the condition of known assembly tree, realize the simulated assembly process from part to segment;

[0048] S6. According to the assembly construction posture, the normal vector direction of the weld plane is adjusted from the original orientation of the 3D model to the orientation of the assembly construction;

[0049] S7. Determine the spatial orientation of the welding axis, that is, the normal vector of the welding surface;

[0050]...

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Abstract

The invention discloses an ocean passenger ship structure segmented welding position automatic calculation method, and belongs to the technical field of ship construction. The method comprises the following steps that S1, an assembly tree is expanded and refined to be at a welding seam level; S2, all levels of welding seam joints on the assembly tree are gathered in a classified mode; S3, the welding seam welding stage after classified aggregation is determined; S4, the sub-assembly construction direction is determined; S5, when each part needs to be assembled and what posture the part needs to be assembled are determined; S6, the parts are adjusted to be in the assembly and construction direction; S7, the spatial orientation of a welding axis, namely the welding surface normal vector, isdetermined; S8, the opening direction of a welding body is determined; S9, the welding position is also determined; and S10, automatic calculation of the welding position is completed. Accurate weldment quantity can help field management to realize accurate dispatching and material distribution, the rationality of a plan is effectively improved, the waste of production materials in a circulation link is reduced, and the method plays a crucial role in segmented lean manufacturing of a high-tech ocean passenger ship structure.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, in particular to a method for automatically calculating segmental welding positions of an ocean-going passenger ship structure. Background technique [0002] High-tech ocean-going passenger ships have complex structures and high construction costs. How to determine the amount of welding and the corresponding man-hour quota in the design stage is of great significance to the cost management of ship hull construction. Welding is a key process in the hull construction process. In the total man-hours of hull construction, welding man-hours account for about 30% to 40%; in the cost of hull construction, welding costs account for about 1 / 3. Ship welding is time-consuming and expensive. [0003] The calculation of the amount of weld material needs to depend on: (1) weld length, (2) weld cross-sectional area, (3) welding material deposition rate. The cross-sectional area of ​​the weld is mainly d...

Claims

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Application Information

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IPC IPC(8): B23K31/02
CPCB23K31/02
Inventor 李思远袁飞晖韩冰杨雪莲龚诗季祺杨晓龙钱嘉楠
Owner SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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