CN111498046A - Lofting positioning and mounting method for ship outer plate mark - Google Patents
Lofting positioning and mounting method for ship outer plate mark Download PDFInfo
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- CN111498046A CN111498046A CN202010310193.6A CN202010310193A CN111498046A CN 111498046 A CN111498046 A CN 111498046A CN 202010310193 A CN202010310193 A CN 202010310193A CN 111498046 A CN111498046 A CN 111498046A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 42
- 239000007787 solid Substances 0.000 claims abstract description 16
- 239000003550 marker Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims 1
- QTCANKDTWWSCMR-UHFFFAOYSA-N costic aldehyde Natural products C1CCC(=C)C2CC(C(=C)C=O)CCC21C QTCANKDTWWSCMR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- ISTFUJWTQAMRGA-UHFFFAOYSA-N iso-beta-costal Natural products C1C(C(=C)C=O)CCC2(C)CCCC(C)=C21 ISTFUJWTQAMRGA-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a lofting, positioning and mounting method for ship outer plate marks. The method comprises the following steps: placing the outer plate mark on the corresponding rib-shaped line, and determining the installation positioning points of various characters in the outer plate mark; projecting the central waterline to rib lines at two sides to determine a real long waterline; solving the character height and the character unfolding angle at the positioning point of each outer plate; stretching each character to a set height according to the corresponding character height; rotating the stretched characters by 45 degrees, stretching according to the corresponding character unfolding angles, and generating various design characters after stretching; marking corresponding installation positioning points, a central waterline and corresponding rib molded lines on the character parts; and aligning the installation positioning point, the central waterline and the rib molded lines on each character part with the corresponding outer plate positioning point, the corresponding solid long waterline and the corresponding rib line respectively. By adopting the invention, the mounting efficiency of the outer plate mark is improved, the positioning precision is ensured, and the mounting of the outer plate mark is convenient.
Description
Technical Field
The invention relates to the technical field of ship mark installation, in particular to a lofting, positioning and installing method for ship outer plate marks.
Background
The prior ship is usually provided with a ship name mark (also called as an outer plate mark), and because the outline of the outer plate of the ship is mostly in a curved surface shape, the plane outer plate mark can be beautifully displayed on the outer plate of the ship only by lofting. At present, the ship outer plate mark is in the lofting stage, the convenience of field installation is rarely considered, the accuracy of lofting is often considered, time and labor are wasted in positioning and installation of the outer plate mark, field constructors often need to print laser grid character frames or horizontal grid character frames for positioning, a lot of working hours are needed when the grid character frames are positioned, the problems of inaccurate positioning and large errors often occur sometimes, and the installation of the outer plate mark is very inconvenient.
Disclosure of Invention
The invention aims to provide a lofting, positioning and mounting method for a ship outer plate mark, which is used for solving the technical problems that the mounting position of the ship outer plate mark is not easy to position and the installation of the outer plate mark is time-consuming and labor-consuming in the prior art.
In order to achieve the purpose, the invention provides a lofting, positioning and mounting method for a ship outer plate mark, which adopts the following technical scheme:
a lofting positioning installation method for ship outer plate marks comprises the following steps:
s1: placing the outer plate mark on the corresponding rib molded line, and determining the installation positioning points of all characters in the outer plate mark through the intersection point of the central waterline and the corresponding rib molded line;
s2: projecting the central waterline to rib lines on two sides to determine a real long waterline, and projecting each installation positioning point on the real long waterline to obtain outer plate positioning points of each typeface;
s3: solving the character height and the character unfolding angle at the positioning point of each outer plate;
s4: stretching each character to a set height according to the corresponding character height, and synchronously stretching a central waterline at the installation positioning point of each character and the corresponding rib molded line;
s5: rotating the stretched character samples by 45 degrees with a central waterline as an initial edge, stretching the rotated character samples according to corresponding character sample unfolding angles, synchronously stretching the central waterline at the installation positioning points of the character samples and corresponding rib molded lines, and generating design character samples after stretching;
s6: marking corresponding installation positioning points, central waterlines and corresponding rib molded lines on the character parts according to the corresponding sizes of the design characters;
s7: and aligning the installation positioning point, the central waterline and the rib molded lines on each character part with the corresponding outer plate positioning point, the corresponding solid long waterline and the corresponding rib molded lines respectively to realize the positioning of the position of each character part.
Further, in step S3, the determining of the typeface height includes the following steps: and drawing two side lines along the upper edge and the lower edge of the outer plate mark, projecting the two side lines to rib lines at two sides and generating projection side lines, wherein the rib line segment passing through each outer plate positioning point between the two projection side lines is the character height of the corresponding character.
Further, in step S3, the obtaining of the unfolding angle of the character form includes setting a rib line passing through a positioning point of the outer plate as a first rib line, setting a rib line adjacent to the first rib line and facing a bow side as a second rib line, crossing the real waterline and the first rib line at a point a, crossing the real waterline and the second rib line at a point B, making a perpendicular line from the point a to the second rib line and obtaining a perpendicular line segment AD, shifting the perpendicular line segment AD to one side by a theoretical rib distance and obtaining a perpendicular line segment AD, connecting a point and D to obtain a real length AD of the rib distance, making a perpendicular line L of the real length AD of the rib distance passing the D point, and then cutting off a line segment DE on a perpendicular line L, the line segment DE being equal to a segment BD, and connecting a point and E point to obtain a real length aE, and an included angle between the real length aE and the perpendicular line L being the unfolding angle of the character form.
Further, the line segment DE is cut by drawing an arc with the point D as the center of a circle and the length of the line segment BD as the radius.
Further, in step S6, the marking is performed by inkjet printing or printing.
Further, in step S7, the method further includes the following steps: firstly, measuring a waterline section between any two adjacent outer plate positioning points, then determining the distance between any two adjacent character sample installation positioning points according to the measured length of the corresponding waterline section, and arranging all character samples in a straight line.
Compared with the prior art, the lofting, positioning and mounting method for the ship outer plate mark has the beneficial effects that: by adopting the lofting, positioning and installing method for the ship outer plate mark, the condition that the installation position of each type part can be determined only by firstly marking a laser grid frame or a horizontal grid frame by a worker in the prior art is avoided, the installation efficiency of the outer plate mark is improved, the positioning precision is ensured, and the installation of the outer plate mark is facilitated.
Drawings
FIG. 1 is a schematic diagram of an outer plate mark of the lofting, positioning and mounting method of a ship outer plate mark according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a rib line of the lofting, positioning and installing method of the ship outer plate mark according to the embodiment of the invention;
FIG. 3 is a schematic view showing a layout of a positioning and installing method for lofting an outer plate marker of a ship according to an embodiment of the present invention projected to both sides;
FIG. 4 is an enlarged view of a portion of the projection of FIG. 3;
FIG. 5 is a schematic plan view showing a layout of a positioning and mounting method for setting out a ship outer plate mark according to an embodiment of the present invention projected from both sides;
FIG. 6 is a schematic starboard side projection view of FIG. 5;
FIG. 7 is an enlarged view of a portion of FIG. 6 at A;
FIG. 8 is a schematic drawing of the lofting, positioning and installation method of the ship outer plate mark according to the embodiment of the present invention;
FIG. 9 is a schematic drawing of the spread angle of the typeface of the method for lofting, positioning and mounting the ship outer plate mark according to the embodiment of the present invention;
fig. 10 is a schematic diagram of the ship outer plate mark lofting positioning installation method according to the embodiment of the present invention after the outer plate mark is adjusted.
In the figure, 1-planking mark, 2-costal line, 3-central waterline, 4-costal line, 5-sideline, 6-projection sideline, 7-solid waterline, 8-first costal line, 9-second costal line, 10-vertical line segment AD, 11-vertical line segment AD, 12-rib spacing solid length aD, 13-vertical line L, 14-waterline solid length aE, and 15-waterline line segment.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 10, a method for lofting, positioning and installing a ship outer plate sign 1 according to a preferred embodiment of the present invention. The lofting positioning installation method of the ship outer plate mark 1 comprises the following steps:
s1: placing the outer plate mark 1 on the corresponding rib molded line 4, and determining the installation positioning points of all characters in the outer plate mark 1 through the intersection point of the central waterline 3 and the corresponding rib molded line 4;
as shown in fig. 1 and fig. 2, the outer board sign 1 in this embodiment is "east sea rescue 151", where the fonts "east", "sea", "rescue" and "151" are all characters. As shown in fig. 3, in the present embodiment, there are a plurality of rib profiles 4, each rib profile 4 is perpendicular to the central waterline 3, and each rib profile 4 corresponds to a rib number when the ship is designed. In this embodiment, the frame lines 4 are arranged at intervals along the fore-aft direction of the ship (i.e., the direction perpendicular to the paper surface and facing inwards), and in order to show the distribution of the frame lines 4, the plane on which the frame lines 4 are located is rotated by 90 ° along the vertical rotation axis. In this embodiment, the central waterline 3 can be regarded as the central axis of the ship, the central waterline 3 is arranged to extend along the fore-aft direction of the ship under the normal viewing angle, and the central waterline 3 is rotated by 90 degrees along the vertical rotating shaft in this embodiment. In the process of placing the outer plate mark 1, the characters of the outer plate mark 1 are arranged in a line along the central waterline 3, the central waterline 3 penetrates through the middle position of each character, the central waterline 3 and the corresponding rib molded lines 4 form intersections at the middle positions of each character, and the intersections are installation positioning points corresponding to each character, which can be specifically shown in fig. 8.
S2: projecting the central waterline 3 to the rib lines 2 at two sides to determine a real long waterline 7, and projecting each installation positioning point on the real long waterline 7 to obtain outer plate positioning points of each typeface;
specifically, as shown in fig. 3 and 4, in the present embodiment, the outer panel marks 1 are provided on both sides of the ship, and since the manner of providing the outer panel marks 1 on both sides is the same, the present embodiment will be described by taking the ship starboard side as an example. As shown in fig. 5, the central waterline 3 is firstly projected to each rib line 2 on the starboard side, the central waterline 3 forms a curve on the starboard side, the curve is the solid long waterline 7, the intersection point formed by each rib line 2 and the solid long waterline 7 is each outer plate positioning point, and it should be noted that each outer plate positioning point in this embodiment may also be regarded as the projection of each installation positioning point on the solid long waterline 7.
S3: solving the character height and the character unfolding angle at the positioning point of each outer plate;
specifically, the process of determining the height of the typeface in this embodiment is as follows: first, a sideline 5 is respectively drawn at the upper side and the lower side of the outer plate character, and both the sidelines 5 are parallel to the deck of the ship. Then, the two side lines 5 are projected to the starboard side of the ship, so that two projection side lines 6 are generated on two sides of the real long waterline 7, specifically, as shown in fig. 4 and 6, each rib line 2 is cut into three sections by the two projection side lines 6, wherein the length of a rib line segment between the two projection side lines 6 is the typeface height of the corresponding font. For example, the original height of the "east" shape in fig. 6 is the length of the rib form 4 with the number F87 held by the two side lines 5, and the height of the "east" shape is the length of the rib form with the number F87 held by the two projected side lines 6.
In the present embodiment, as shown in fig. 6 and 7, since the manner of obtaining the spread angles of the characters is the same, only the "east" is taken as an example in the present embodiment, the rib line 2 corresponding to the "east" is the rib line 2 numbered 87, the rib line 2 passes through the outer plate positioning point corresponding to the "east", the rib line 2 is provided with the first rib line 8, the rib line 2 adjacent to the first rib line 8 and facing the ship bow side is referred to as the second rib line 9, the solid waterline 7 intersects the first rib line 8 at the point a, the solid waterline 7 intersects the second rib line 9 at the point B, a perpendicular line is drawn from the point a to the second rib line 9 to obtain a vertical line segment AD10, the vertical line segment 10 is shifted to the vertical line segment AD 78 to obtain a vertical line segment AD 78, a connecting point a and a point D355634D is a vertical line segment AD 3513, and a vertical line segment BD 3613 is obtained by dividing the solid waterline angle from the solid waterline line segment AD 3613, and the solid waterline 355634 a connecting point BD 3, and the solid waterline connecting point BD 3.
In the present embodiment, the line segment DE is obtained by drawing a circle with point D as the center and the length of the line segment BD as the radius, and intersecting the drawn circle with the perpendicular line L13 at the point E.
S4: stretching each character to a set height according to the corresponding character height, and synchronously stretching a central waterline 3 at the installation positioning point of each character and the corresponding rib molded line 4;
specifically, in the present embodiment, the "east" is taken as an example, and as shown in fig. 8, when the initial height of the "east" is 1000mm and the obtained height of the "east" is 1078mm, the height of the "east" may be stretched to 1078 mm. It should be noted that the central waterline 3 passing through the "east" mounting location point during the stretching process and the rib mold line 4 are also stretched together. In this embodiment, the sample placing process is performed in the CAD software, and the stretching is performed by using a stretching command in the CAD software.
S5: rotating the stretched character samples by 45 degrees with a central waterline 3 as an initial edge, stretching the rotated character samples according to corresponding character sample unfolding angles, synchronously stretching the central waterline 3 at the installation positioning points of the character samples and the corresponding rib molded lines 4, and generating various design character samples after stretching;
specifically, in this embodiment, the east is first rotated counterclockwise by 45 ° and then stretched according to the obtained spread angle α, the spread angle α corresponding to the east is 95 °, and the included angle between the central water line 3 and the corresponding rib form 4 is then stretched to 95 °.
S6: marking corresponding installation positioning points, a central waterline 3 and corresponding rib molded lines 4 on the character parts according to the corresponding sizes of the design characters;
specifically, in this embodiment, the typeface part is a typeface processed and formed according to the design typeface, and then the installation positioning point, the central waterline 3, and the corresponding rib mold line 4 are marked on the typeface part according to the designed corresponding size. The marking mode can adopt spray painting or printing.
S7: and aligning the installation positioning point, the central waterline 3 and the rib molded line 4 on each character part with the corresponding outer plate positioning point, the corresponding solid long waterline 7 and the corresponding rib line 2 respectively to realize the positioning of the position of each character part.
Specifically, when mounting each type of part, first, the mounting positioning point of each type of part is aligned with the corresponding outer plate positioning point, then the central waterline 3 of the type of part is aligned with the solid-long waterline 7, and the rib molded line 4 is aligned with the rib line 2. It should be noted that, in order to improve the installation efficiency, when installing the various character parts, the various character parts may be integrated into a whole first, that is, the waterline section 15 between any two adjacent outer plate positioning points is measured first, specifically, as shown in fig. 10, the length of the waterline section 15 between the rib line 2 numbered as F87 and the rib line 2 numbered as F89 in this embodiment is 1238, and the length of the waterline section 15 between the rib line 2 numbered as F89 and the rib line 2 numbered as F91 is 1252. After the length of each waterline section 15 is known, each character is arranged in a straight line according to the length of the corresponding waterline section 15, the distance between the installation positioning points of two adjacent characters is the length of the corresponding waterline section 15, and the installation positioning points of each character are positioned on the same straight line, so when the outer plate mark 1 is installed, one character is accurately positioned, and other characters are also accurately positioned, thereby improving the installation efficiency.
To sum up, the embodiment of the invention provides a lofting, positioning and mounting method for a ship outer plate mark, which avoids the situation that in the prior art, the mounting position of each type part can be determined only by firstly marking a laser grid frame or a horizontal grid frame by a worker, improves the mounting efficiency of the outer plate mark 1, ensures the positioning accuracy and facilitates the mounting of the outer plate mark 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. A lofting, positioning and mounting method for ship outer plate marks is characterized by comprising the following steps:
s1: placing the outer plate mark (1) on the corresponding rib molded line (4), and determining the installation positioning points of various characters in the outer plate mark (1) through the intersection point of the central waterline (3) and the corresponding rib molded line (4);
s2: projecting the central waterline (3) to the rib lines (2) at two sides to determine a real long waterline (7), and projecting each installation positioning point on the real long waterline (7) to obtain outer plate positioning points of various characters;
s3: solving the character height and the character unfolding angle at the positioning point of each outer plate;
s4: stretching each character to a set height according to the corresponding character height, and synchronously stretching a central waterline (3) at the installation positioning point of each character and the corresponding rib molded line (4);
s5: rotating the stretched character samples by 45 degrees with a central waterline (3) as an initial edge, then stretching the rotated character samples according to corresponding character sample unfolding angles, synchronously stretching the central waterline (3) at the installation positioning points of the character samples and corresponding rib molded lines (4), and generating various design character samples after stretching;
s6: marking corresponding installation positioning points, a central waterline (3) and corresponding rib molded lines (4) on the character parts according to the corresponding sizes of the designed characters;
s7: and aligning the installation positioning point, the central waterline (3) and the rib molded line (4) on each character part with the corresponding outer plate positioning point, the corresponding solid long waterline (7) and the corresponding rib line (2) respectively to realize the positioning of the position of each character part.
2. The method for lofting, positioning and installing the marine outer panel mark according to claim 1, wherein the step S3 of obtaining the typeface height includes the steps of: two side lines (5) are drawn along the upper edge and the lower edge of the outer plate mark (1), then the two side lines (5) are projected to the rib lines (2) on the two sides to generate projection side lines (6), and rib line segments passing through the positioning points of the outer plates between the two projection side lines (6) are the character height of the corresponding characters.
3. The method for lofting, positioning and installing marine shell plate markers according to claim 2, wherein the sidelines (5) are parallel to the deck of the vessel.
4. The ship outer plate marker lofting, positioning and mounting method according to claim 1, wherein in step S3, the determination of the spread angle of the letter comprises the steps of setting a rib line (2) passing through the outer plate positioning point as a first rib line (8), setting the rib line (2) adjacent to the first rib line (8) and facing the ship bow side as a second rib line (9), making a perpendicular line from the point a to the second rib line (9) and obtaining a perpendicular line segment AD (10), shifting the perpendicular line segment AD (10) to one side by a theoretical rib distance and obtaining a perpendicular line segment (11), connecting the a point and the D point to obtain a substantial rib distance AD (12), making a perpendicular line from the D point to the substantial rib AD (12), then cutting the perpendicular line from the substantial rib line segment AD (13) and obtaining a spread angle equal to the line segment DE 13, and connecting the substantial rib line segment E13 as a, and the perpendicular line segment DE 13E 6314, and obtaining a line segment BD 6314, and the spread angle equal to the line segment DE 13E 3, and the perpendicular line E3614.
5. The lofting, positioning and mounting method for the ship outer plate mark according to claim 4, wherein the line segment DE is cut by drawing an arc with the center of D and the length of the line segment BD as a radius.
6. The lofting, positioning and installing method of an outer plate marker of a ship according to claim 1, wherein in step S6, the marking is performed by painting or printing.
7. The method for lofting, positioning and installing the marine outer panel mark according to claim 1, further comprising, in step S7, the steps of: firstly, measuring a waterline section (15) between any two adjacent outer plate positioning points, then determining the distance between any two adjacent character sample installation positioning points according to the length of the measured corresponding waterline section (15), and arranging all character samples in a line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310193.6A CN111498046B (en) | 2020-04-17 | 2020-04-17 | Lofting positioning and mounting method for ship outer plate mark |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010310193.6A CN111498046B (en) | 2020-04-17 | 2020-04-17 | Lofting positioning and mounting method for ship outer plate mark |
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| CN111498046B CN111498046B (en) | 2021-08-20 |
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Cited By (3)
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| CN113879480A (en) * | 2021-11-17 | 2022-01-04 | 江南造船(集团)有限责任公司 | Ship outboard mark suppress marking method and ship outer plate |
| CN114939790A (en) * | 2022-06-02 | 2022-08-26 | 中船黄埔文冲船舶有限公司 | Design and construction method of ship name sign |
| CN115009469A (en) * | 2022-06-30 | 2022-09-06 | 中船黄埔文冲船舶有限公司 | Lofting design method of processing sample plate and processing sample plate |
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| CN113879480A (en) * | 2021-11-17 | 2022-01-04 | 江南造船(集团)有限责任公司 | Ship outboard mark suppress marking method and ship outer plate |
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| CN115009469A (en) * | 2022-06-30 | 2022-09-06 | 中船黄埔文冲船舶有限公司 | Lofting design method of processing sample plate and processing sample plate |
| CN115009469B (en) * | 2022-06-30 | 2023-06-23 | 中船黄埔文冲船舶有限公司 | Lofting design method for processing template |
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| CN111498046B (en) | 2021-08-20 |
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Application publication date: 20200807 Assignee: Zhanjiang Nanhai Shipbuilding High tech Service Co.,Ltd. Assignor: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd. Contract record no.: X2023980048822 Denomination of invention: A Method for Setting Out, Positioning and Installation of Ship Outer Panel Signs Granted publication date: 20210820 License type: Common License Record date: 20231130 |
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