CN110877694A - Shipboard subsection belt bending angle position and trough-type bulkhead subsection butt joint assembly method - Google Patents
Shipboard subsection belt bending angle position and trough-type bulkhead subsection butt joint assembly method Download PDFInfo
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- CN110877694A CN110877694A CN201911119952.4A CN201911119952A CN110877694A CN 110877694 A CN110877694 A CN 110877694A CN 201911119952 A CN201911119952 A CN 201911119952A CN 110877694 A CN110877694 A CN 110877694A
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Abstract
The invention discloses a method for butt-joint assembling of a broadside section with a bending angle position and a trough-type compartment section, wherein an inner longitudinal wall of the broadside section comprises a first plate and a second plate which is connected with the first plate and forms a preset angle, and the method for assembling comprises the following steps: marking a first mounting line and a first inspection line on the framework surface of the first plate; refuting the first mounting line and the first inspection line to the cargo hold surface of the first board to form a second mounting line and a second inspection line; welding and assembling the first plate to the broadside section according to the first installation line and the first inspection line, and pre-assembling the second plate to the broadside section; erecting a laser instrument. The invention can simply and efficiently realize the accurate butt joint assembly of the carbon steel groove type and the stainless steel groove type in the bending angle position of the linear broadside subsection, and quickly test the butt joint precision of the groove type structure of the linear broadside subsection. The ship building precision is met, simultaneously, a large amount of nondestructive inspection operation is avoided, the ship building period is shortened, and the production cost is reduced.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a shipboard subsection and inflection position and trough-type compartment subsection butt joint assembly method.
Background
The inner area of the chemical ship cargo hold is made of stainless steel materials, a large number of horizontal groove type compartment sections are used for cargo hold subdivision, and the carbon steel groove type in the side section needs to be accurately butted with the stainless steel groove type section. Once a butt joint structure has large deviation in the construction process, the problems of insufficient butt joint strength, welding line cracking, stress corrosion and the like of stainless steel can be caused, and huge repair cost waste is caused. Due to the linear area of the fore and aft parts, the broadside subsection is not of a straight structure, the longitudinal wall in the subsection has oblique dip angles in two directions, and the sections on two sides of the bevel cannot mark a uniform datum line at one time. How to ensure the accurate groove type butt joint of the folded angle position is always a difficult problem which troubles the field production.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a sectional butting assembly method for a turned-angle position of a broadside section and a groove-shaped bulkhead. The problem of on-site sectional butt joint assembly deviation is avoided, and the construction quality of the chemical ship is guaranteed.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of butt-assembling a broadside segment with a folded-angle position and a trough-type compartment segment, an inner longitudinal wall of the broadside segment including a first plate and a second plate connected to the first plate and having a predetermined angle, the method comprising: marking a first mounting line and a first inspection line on the framework surface of the first plate; refuting the first mounting line and the first inspection line to the cargo hold surface of the first board to form a second mounting line and a second inspection line; welding and assembling the first plate to the broadside section according to the first installation line and the first inspection line, and pre-assembling the second plate to the broadside section; erecting a laser instrument, generating a first laser plane which is perpendicular to the first plate and the second plate at the same time, adjusting the position of the first laser plane to enable the first laser plane to comprise a second installation line, drawing a third installation line at the intersection line of the first laser plane and the cargo compartment surface of the second plate, generating a second laser plane which is perpendicular to the first plate and the second plate at the same time, adjusting the position of the second laser plane to enable the second laser plane to comprise a second inspection line, and drawing a third inspection line at the intersection line of the second laser plane and the cargo compartment surface of the second plate; reversely plugging the third mounting line and the third inspection line to the framework surface of the second plate to form a fourth mounting line and a fourth inspection line; and welding and assembling the second plate to the broadside section according to a fourth mounting line and a fourth inspection line.
Preferably, the first plate is at an angle α with respect to the center line of the hull, the first mounting line and the first inspection line are refunded to the cargo space surface of the first plate to form a second mounting line and a second inspection line, and the second mounting line and the second inspection line are respectively refunded to the cargo space surface by an offset b relative to the first mounting line and the first inspection line, so that the groove-shaped structure of the framework surface of the first plate and the groove-shaped compartment of the cargo space surface of the first plate are installed in a same plane in a segmented mode.
Preferably, b-tan α t, where t is the sheet thickness of the first sheet.
Preferably, the first mounting line and the first inspection line are planned in a jig frame manufacturing stage of the first board, and the second mounting line and the second inspection line are planned after the first board is turned over.
Preferably, the laser instrument is a laser theodolite.
Compared with the prior art, the invention has the beneficial effects that: the accurate butt joint assembly of the carbon steel groove type (framework surface) and the stainless steel groove type (cargo hold surface) in the linear broadside subsection with the bending angle position can be simply and efficiently realized, and the butt joint precision of the groove type structure of the linear broadside subsection is rapidly detected; the ship building precision is met, simultaneously, a large amount of nondestructive inspection operation is avoided, the ship building period is shortened, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic drawing of a framework surface according to an embodiment of the present invention.
FIG. 2 is a schematic representation of the framing surface being lined with a template for positioning a single channel-type structure.
FIG. 3 is a schematic illustration of refuting with an L-shaped tool.
FIG. 4 is a schematic illustration of cargo compartment surfaces using template scoring to locate individual trough-type structures.
Fig. 5 is a schematic view of fig. 3 taken along direction a.
Fig. 6 is a schematic view of the first plate and the second plate.
FIG. 7 is a schematic illustration of the refuting offset of the first plate.
Fig. 8 is an enlarged schematic view at a in fig. 7.
FIG. 9 is a schematic view of the junction between the cargo compartment surfaces of the first and second plates from a stern view.
Fig. 10 is an enlarged schematic view at B in fig. 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 10, the present embodiment provides a method for assembling a broadside section with a folding angle position and a trough-type compartment section in a butt joint manner, wherein an inner longitudinal wall of the broadside section comprises a first plate 15 and a second plate 16 which is connected with the first plate 15 and has a predetermined angle, and the method comprises the following steps: marking a first mounting line 19 and a first inspection line 20 on the frame surface 17 of the first board 15; refuting the first installation line 19 and the first inspection line 20 to the cargo compartment face 18 of the first panel 15 to form a second installation line 21 and a second inspection line 22; welding the first plate 15 to the broadside section according to the first mounting line 19 and the first inspection line 20, preassembling the second plate 16 to the broadside section; erecting a laser instrument, generating a first laser plane which is perpendicular to the first plate 15 and the second plate 16 at the same time, adjusting the position of the first laser plane to enable the first laser plane to comprise a second installation line 21, drawing a third installation line at the intersection line of the first laser plane and the cargo compartment surface of the second plate 16, generating a second laser plane which is perpendicular to the first plate 15 and the second plate 16 at the same time, adjusting the position of the second laser plane to enable the second laser plane to comprise a second inspection line 22, and drawing a third inspection line at the intersection line of the second laser plane and the cargo compartment surface of the second plate 16; reversely plugging the third mounting line and the third inspection line to the framework surface of the second board 16 to form a fourth mounting line and a fourth inspection line; the second plate 16 is weld-fitted to the broadside section according to a fourth mounting line and a fourth inspection line.
The first plate 15 is at an angle α with the center line 23 of the ship body, the first installation line 19 and the first inspection line 20 are refunded to the cargo compartment surface 18 of the first plate 15 to form a second installation line 21 and a second inspection line 22, and the second installation line 21 and the second inspection line 22 are respectively provided with an offset b relative to the refunded line of the first installation line 19 and the first inspection line 20 to the cargo compartment surface, so that the groove-shaped structure of the framework surface 17 of the first plate 15 and the groove-shaped compartment of the cargo compartment surface 18 of the first plate 15 are installed in the same plane in a segmented mode.
And b is tan α t, where t is the plate thickness of the first plate 15.
The first mounting line 19 and the first inspection line 20 are planned during the carcass-making phase of the first panel 15, and the second mounting line 21 and the second inspection line 22 are planned after the first panel 15 is turned over.
The laser instrument is a laser theodolite.
In another embodiment, a method for assembling the broadside section with the folding angle position and the trough-type compartment section in a butt joint mode comprises the following steps:
1. dividing the segments on the two sides of the break angle into B/C segments, and dividing the groove-shaped mounting line and the inspection line;
2. and in the manufacturing state of the linear broadside segmented jig frame, firstly finishing the reference scribing work of the oblique plane B segment. Marking a groove-shaped mounting line and a detection line on the framework surface of the inner longitudinal wall B segment of the broadside segment by measuring corresponding positions and referring to a groove-shaped marking method of a straight region, and respectively knocking a foreign punch by guiding the edges of the mounting line and the detection line to the groove of the lower opening of the steel plate;
3. after the linear broadside is turned over in a segmented mode, a groove-shaped mounting line and a detection line of the B segment framework surface are refuted to the cargo compartment surface by using a refute line tool and perpendicular to a stainless steel plate;
4. then, referring to the actual inclination angle of the inner longitudinal wall of the broadside subsection and the thickness of the inner longitudinal wall plate, calculating the offset of the datum line, increasing the corresponding offset according to the refuting datum line of the structural surface, knocking ocean punching points, and drawing an installation line and a check line of the cargo hold surface groove type;
5. the offset b of the reference line is tan α, wherein t is the plate thickness of the inner longitudinal wall of the broadside section, and α is the inclination angle between the inner longitudinal wall of the broadside section and the center line of the ship body;
6. after turning over in sections, installing a C section on the other side of the fold angle of the inboard longitudinal wall, and welding all the electric welding of the C section (including the butt joint of stainless steel plates) temporarily, thereby facilitating subsequent adjustment;
7. vertically extending the groove-shaped mounting line and the inspection line of the surface of the cargo compartment of the section B by using a laser theodolite, introducing the mounting line and the inspection line of the section B onto the section C, turning round points and knocking foreign impacts at a lower opening, and scribing the groove-shaped mounting line and the inspection line;
8. refuting the ocean impulse of the lower cargo hold surface of the C segment to the framework surface, connecting the ocean impulse of the lower port with the ocean impulse point of the slope of the B segment, and completing a groove-shaped mounting line and an inspection line of the framework surface of the C segment;
9. and assembling the groove type corresponding to the C segment according to the installation line and the inspection line.
The groove type scribing method referring to the straight region concretely discloses a method for assembling and inspecting groove type structures on two sides of a straight broadside segment, and the method comprises the following steps: a first groove-shaped structure is to be assembled on one side of a framework surface of a flat plate belonging to a straight shipboard subsection, a second groove-shaped structure is to be assembled on a cargo hold surface of the flat plate, and the first groove-shaped structure and the second groove-shaped structure have groove-shaped cross sections with the same specification and shape; a first straight mounting line 1, a first straight inspection line 2 and a first central line 3 are drawn on the framework surface; reversely feeding the first straight mounting line 1, the first straight inspection line 2 and the first central line 3 to the cargo plane to form a second straight mounting line 4, a second straight inspection line 5 and a second central line 6; adopting a sample plate 14 with a groove-shaped cross section to draw a first bevel edge mounting line 7 and a first bevel edge inspection line 8 against the framework surface, establishing a first mounting point 9 and a first inspection point 10, adopting the sample plate 14 to draw a second bevel edge mounting line 11 and a second bevel edge inspection line 12 against the cargo compartment surface, and establishing a second inspection point 13; and the first groove-shaped structure is assembled on the framework surface of the flat plate according to a first straight installation line 1, a first bevel edge installation line 7 and a first installation point 9 and is measured and inspected through a first inspection point 10, and the second groove-shaped structure is assembled on the cargo compartment surface of the flat plate according to a second straight installation line 4 and a second bevel edge installation line 11 and is measured and inspected through a second inspection point 13.
The first flat mounting line 1 and the second flat inspection line 5 each comprise two parallel lines along the upper edge and the lower edge of the channel structure.
The first bevel edge mounting line 7 and the second bevel edge mounting line 11 both include two lines along the inner side walls inclined at both sides of the groove-shaped structure.
The first central line 3 passes through the first straight installation line 1 and the first straight inspection line 2 to form a first central point, and whether the template 14 is centered is judged by means of the first central point when the template is abutted against the framework surface.
The second central line 6 passes through the second straight mounting line 4 and the second straight inspection line 5 to form a second central point, and whether the template 14 is centered or not is judged by means of the second central point when the template is abutted against the cargo compartment.
Refuting the first straight installation line 1, the first straight inspection line 2, the first center line 3 to the cargo compartment surface comprises: during refuting, 3 ocean impulse points are respectively established at two ends of the cargo plane through an L-shaped tool, and then the ocean impulse points are connected into a line.
Refuting the first flat inspection line 2 to the cargo bay surface includes: a point is marked on the bevel of the plate along the first inspection line, a second straight inspection line 5 is drawn on the cargo space along the side of the L-shaped tool coplanar with the plane on which the L-shaped tool lies, with one side of the L-shaped tool abutting the cargo space and the other side lying in a plane containing the point.
1) And defining a horizontal trough type butt joint feature of the straight broadside segment. The strength requirement of the groove type butt joint is comprehensively considered, the butt joint of a single groove type is defined as the butt joint of 4 reference mounting lines and 5 inspection lines through the extraction of key feature points of the groove type, and the control of a plurality of key control points is further refined, so that the butt joint operation on site is facilitated.
2) In the process of manufacturing the straight shipboard subsection, the actual installation position of the internal carbon steel groove is determined through measurement, groove-shaped rib plate installation lines (2) and 100mm inspection lines (3) are scribed on the subsection structural surface, the center line of the groove-shaped rib plate is formed, and 3 ocean impact marks are knocked at each end of the groove-shaped rib plate.
3) The ocean punching marks in the figure 1 are led into the groove of the plate edge, and 1 ocean punching mark is knocked.
4) After the installation position of the groove type is determined, an aluminum alloy sample plate is used for marking out an installation line and a 100mm inspection line of a single groove type on the segmented structure surface; for each groove type, a central point (4 groove type central positions), an installation point (4 corner points) and inspection points (8 points are all on an inspection line) are found, 16 points are found in total (as shown in fig. 2), and then the ocean punch is knocked.
5) And (3) using a special wire-overlapping tool (shown in figure 3), reversely overlapping the groove-shaped rib plate mounting lines (2) and the 100mm inspection lines (3) of the ballast tank surface and the ocean-rushing marks of the center lines of the groove-shaped rib plates marked in figure 1 to the surface of the cargo compartment, and knocking 3 ocean-rushing at each end and then marking. The reference unification of the structural plane and the cargo plane is ensured.
6) And (3) finding a single groove type installation position on the cargo hold surface by referring to 2 installation lines and 3 inspection lines which are refuted to the cargo hold surface, drawing the same template by using the structural surface, finding central points (4) inspection points (8) on the flat side segmented cargo hold surface at the corresponding position of the cargo hold surface, totally 12 points, knocking the ocean punch and connecting the lines.
7) And in the butt joint stage of the straight shipboard subsection groove-type structure, the check line, the central point and the check point which are described in the figure 4 are referred to, and the butt joint assembly is carried out on the straight shipboard subsection groove-type structure and the stainless steel horizontal groove-type subsection, so that the installation precision is ensured.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (5)
1. A method for butt-assembling a broadside segment with a folded angle position and a trough-type compartment segment, wherein an inner longitudinal wall of the broadside segment comprises a first plate (15) and a second plate (16) which is connected with the first plate (15) and forms a predetermined angle, and the method comprises the following steps:
marking a first mounting line (19) and a first inspection line (20) on the frame surface (17) of the first plate (15);
refuting the first installation line (19) and the first inspection line (20) to the cargo compartment surface (18) of the first plate (15) to form a second installation line (21) and a second inspection line (22);
welding the first plate (15) to the broadside section according to a first installation line (19) and a first inspection line (20), pre-assembling the second plate (16) to the broadside section;
erecting a laser instrument, generating a first laser plane which is perpendicular to the first plate (15) and the second plate (16) at the same time, adjusting the position of the first laser plane to include a second installation line (21), overlapping and marking a third installation line at the intersection line of the first laser plane and the cargo compartment surface of the second plate (16), generating a second laser plane which is perpendicular to the first plate (15) and the second plate (16) at the same time, adjusting the position of the second laser plane to include a second inspection line (22), and overlapping and marking a third inspection line at the intersection line of the second laser plane and the cargo compartment surface of the second plate (16);
reversely connecting the third mounting line and the third inspection line to the framework surface of the second plate (16) to form a fourth mounting line and a fourth inspection line;
and welding and assembling the second plate (16) to the broadside section according to a fourth mounting line and a fourth inspection line.
2. The method for assembling the shipboard segment with the break angle position and the trough-type compartment segment in the butt joint manner according to claim 1, wherein the first plate (15) and the hull center line (23) form an angle α, the first installation line (19) and the first inspection line (20) are refunded to the cargo compartment face (18) of the first plate (15) to form a second installation line (21) and a second inspection line (22), and the second installation line (21) and the second inspection line (22) are refunded to the cargo compartment face relative to the first installation line (19) and the first inspection line (20) respectively and have an offset b, so that the trough-type structure of the framework face (17) of the first plate (15) and the trough-type compartment segment of the cargo compartment face (18) of the first plate (15) are installed in the same plane.
3. The broadside sectional angular position and trough bay sectional butt-joint assembly method as claimed in claim 2, wherein b-tan α t, where t is the plate thickness of the first plate (15).
4. The assembly method for assembling the broadside subsection with the break angle position and the trough-type compartment subsection in the butt joint mode according to claim 1, wherein the first installation line (19) and the first inspection line (20) are drawn in a jig frame manufacturing stage of the first plate (15), and the second installation line (21) and the second inspection line (22) are drawn in a drawing mode after the first plate (15) is turned over.
5. The broadside segmented belt knuckle position and trough compartment segmented butt-joint assembly method as recited in claim 1, wherein the laser instrument is a laser theodolite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911119952.4A CN110877694B (en) | 2019-11-15 | 2019-11-15 | Shipboard subsection belt bending angle position and trough-type bulkhead subsection butt joint assembly method |
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| CN201911119952.4A CN110877694B (en) | 2019-11-15 | 2019-11-15 | Shipboard subsection belt bending angle position and trough-type bulkhead subsection butt joint assembly method |
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| CN110877694B CN110877694B (en) | 2021-09-21 |
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| CN114735155A (en) * | 2022-04-02 | 2022-07-12 | 江南造船(集团)有限责任公司 | Installation method of corner guide rail of container ship |
| CN116810754A (en) * | 2023-08-29 | 2023-09-29 | 南通中远海运川崎船舶工程有限公司 | Technological method for improving line drawing precision of reverse surface material |
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| CN116810754B (en) * | 2023-08-29 | 2023-12-22 | 南通中远海运川崎船舶工程有限公司 | Technological method for improving line drawing precision of reverse surface material |
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| CN110877694B (en) | 2021-09-21 |
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