CN101746482A - Method of abutting joint of two total segments in shipbuilding process - Google Patents
Method of abutting joint of two total segments in shipbuilding process Download PDFInfo
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- CN101746482A CN101746482A CN200810229112A CN200810229112A CN101746482A CN 101746482 A CN101746482 A CN 101746482A CN 200810229112 A CN200810229112 A CN 200810229112A CN 200810229112 A CN200810229112 A CN 200810229112A CN 101746482 A CN101746482 A CN 101746482A
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- abutting joint
- baseline
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- measure
- complete cross
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Abstract
The invention relates to a method of abutting joint of two total segments in the shipbuilding process, which utilizes a laser theodolite to measure the same surface degree of an abutting joint seam. The laser theodolite must be arranged to be orthogonal with the center line of a hull. Under the condition of a ruling line detected to be beyond a size, the remain is cut to ensure the surface degree tolerance of a finished abutting joint surface to be at most 2 mm. The method increases the construction abutting joint accuracy and speed of the two total segments and reduces hull trimming workload and the occurring of two positioning accidents. The laser theodolite is used to measure, score and finish an end surface, and firstly the same surface degree of the abutting joint surface and the orthogonality of the abutting joint surface and a center surface must be ensured. A baseline on a bottom folding target rod is utilized to measure the deflection degree of the bottom baseline, therefore the slope of the baseline is determined, and finally the method ensures the angle between the abutting joint plane and a baseline surface to be a right angle.
Description
Technical field
The present invention relates to shipbuilding industry, more particularly, relate to the localization method of two complete cross sections butt joint in the shipbuilding.
Background technology
Following phenomenon often takes place in the boats and ships two complete cross sections butt joint of prior art:
1. because of butt joint panel mouth (closing up the seam place) structure is uneven, local structure " asphyxia by external pressure on the chest and abdomen " are cut again.
2. plate need be changed because of excessive clearance again in some position.
3. What is more, complete cross section location taken place closed up the back and need to repair because of the gap is serious overproof, the accident of water filling again, floating, second positioning.
Summary of the invention
The present invention is in order to reduce the work of repairing of cutting, and provides a cover two total sections in large dock shipbuilding to build the technological requirement of interface hull precision measure aspect, thereby effectively realized the butt joint of two complete cross sections, increases work efficiency and therefore reduced job costs and work difficulty.
In order to address the above problem, the method for two complete cross sections butt joint utilizes laser transit that butt seam coplanar degree is measured in a kind of shipbuilding process of the present invention.Wherein, laser transit be provided with must and hull line of centers quadrature, line detects and to exceed under the situation of size, the cutting surplus guarantees the coplanar degree tolerance≤2mm of finishing back interface.
The present invention measures project implementation and has improved two complete cross sections construction merging precision and speed, has reduced hull and has cut the generation of repairing work capacity and twice location accident.At least improved location efficiency 2 hours.If the overproof needs of complete cross section location post gap are put on flesh or changed plate, even need the floating again second positioning of complete cross section, so, just need 2～3 days time.
To end surface measurement, line and finishing, at first to guarantee the coplanar degree of interface and the quadrature of interface and center line face by the utilization laser transit.The deflection degree of utilizing hull bottom to close up the datum line instrumentation ship base line on the mark post, thereby the slope of definite baseline, the angle of final assurance butt joint plane and datum plane is the right angle.
Description of drawings
Fig. 1 is the 1st complete cross section and the 2nd complete cross section butt seam coplanar degree instrumentation plan;
Fig. 2 is that the baseline deflection degree is measured and shop pier requirement figure;
Fig. 3 also is that the baseline deflection degree is measured and shop pier requirement figure.
The specific embodiment
As shown in Figure 1, adopt laser transit that butt seam coplanar degree is measured, at first, laser transit be provided with must and hull line of centers quadrature, line detect as overproof must finishing, cutting redundance, the coplanar degree tolerance≤2mm of finishing back interface.Among Fig. 1, the face of choosing of the camera lens of laser transit will with hull line of centers quadrature.
The coplanar degree of complete cross section seam of the present invention is measured requirement, the coplanar degree of strict control 1 complete cross section and 2 complete cross section butt seams.And utilize the deflection degree of closing up the datum line instrumentation ship base line on the mark post, thereby determine the slope of baseline.When the slope of baseline was zero, shop pier upper surface required level before the floating location of 2 complete cross sections.When baseline gradient, shop pier upper surface is consistent with the base pitch of measuring before the floating location of 2 complete cross sections.Only in this way, could guarantee the precision of 1 complete cross section and 2 complete cross section butt seams.
Measure and spread shown in the pier requirement as Fig. 2,3 baseline deflection degree.Among Fig. 2, find out from figure (c) that the baseline deflection is around the average baselining fluctuation by measurement to the baseline amount of deflection.Therefrom can obtain conclusion: baseline is a horizon, and when the pier of shop, 2 complete cross sections are built the upper surface of pier on same horizontal surface, see shown in the figure (d).Among Fig. 3, from figure (c), find out that the baseline deflection degree is the trend of facing upward by measurement to the baseline amount of deflection.Therefrom can obtain conclusion: baseline is a gradient straight line, and when the pier of shop, the upper surface that 2 complete cross sections are built pier should be set to the low high skew lines of bow of stern.Concrete gradient can obtain from (c).See shown in the figure (d).Label 1 expression the 1st complete cross section among Fig. 2, Fig. 3, a2 represents to suppose baseline, and a1 represents average baselining 280, and a3 represents to spread pier upper surface level, and a4 represents to spread pier upper surface band slope.
Claims (1)
1. the method for two complete cross sections butt joint in the shipbuilding process is characterized in that, utilizes laser transit that butt seam coplanar degree is measured; Wherein, laser transit be provided with must and hull line of centers quadrature, line detects and to exceed under the situation of size, the cutting surplus guarantees the coplanar degree tolerance≤2mm of finishing back interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810229112A CN101746482A (en) | 2008-11-28 | 2008-11-28 | Method of abutting joint of two total segments in shipbuilding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810229112A CN101746482A (en) | 2008-11-28 | 2008-11-28 | Method of abutting joint of two total segments in shipbuilding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101746482A true CN101746482A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810229112A Pending CN101746482A (en) | 2008-11-28 | 2008-11-28 | Method of abutting joint of two total segments in shipbuilding process |
Country Status (1)
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| CN (1) | CN101746482A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490864A (en) * | 2011-11-29 | 2012-06-13 | 广州中船黄埔造船有限公司 | Underwater folding method for half ships |
| CN102874376A (en) * | 2012-09-29 | 2013-01-16 | 江门市南洋船舶工程有限公司 | Marking device for allowance lines and inspection lines in hull construction |
| CN104608876A (en) * | 2015-01-20 | 2015-05-13 | 江苏海事职业技术学院 | Digitized dock building method |
| CN108891529A (en) * | 2018-06-06 | 2018-11-27 | 广州中船文冲船坞有限公司 | A method of accelerating the new and old hull of scientific investigation ship using fairing processing and docks |
| CN113029087A (en) * | 2021-04-27 | 2021-06-25 | 江南造船(集团)有限责任公司 | Method for measuring space installation angle of ship body base |
-
2008
- 2008-11-28 CN CN200810229112A patent/CN101746482A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490864A (en) * | 2011-11-29 | 2012-06-13 | 广州中船黄埔造船有限公司 | Underwater folding method for half ships |
| CN102490864B (en) * | 2011-11-29 | 2014-10-15 | 广州中船黄埔造船有限公司 | Underwater folding method for half ships |
| CN102874376A (en) * | 2012-09-29 | 2013-01-16 | 江门市南洋船舶工程有限公司 | Marking device for allowance lines and inspection lines in hull construction |
| CN102874376B (en) * | 2012-09-29 | 2015-02-11 | 江门市南洋船舶工程有限公司 | Marking device for allowance lines and inspection lines in hull construction |
| CN104608876A (en) * | 2015-01-20 | 2015-05-13 | 江苏海事职业技术学院 | Digitized dock building method |
| CN108891529A (en) * | 2018-06-06 | 2018-11-27 | 广州中船文冲船坞有限公司 | A method of accelerating the new and old hull of scientific investigation ship using fairing processing and docks |
| CN108891529B (en) * | 2018-06-06 | 2019-06-11 | 广州中船文冲船坞有限公司 | A method of accelerating the new and old hull of scientific investigation ship using fairing processing and docks |
| CN113029087A (en) * | 2021-04-27 | 2021-06-25 | 江南造船(集团)有限责任公司 | Method for measuring space installation angle of ship body base |
| CN113029087B (en) * | 2021-04-27 | 2022-10-25 | 江南造船(集团)有限责任公司 | Method for measuring space installation angle of ship body base |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |