CN113071629A - Method for positioning closure opening of ship longitudinal frame and curved surface outer plate - Google Patents
Method for positioning closure opening of ship longitudinal frame and curved surface outer plate Download PDFInfo
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- CN113071629A CN113071629A CN202110456653.0A CN202110456653A CN113071629A CN 113071629 A CN113071629 A CN 113071629A CN 202110456653 A CN202110456653 A CN 202110456653A CN 113071629 A CN113071629 A CN 113071629A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 210000000988 bone and bone Anatomy 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 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
- 238000005259 measurement Methods 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the technical field of ship manufacturing, and discloses a method for positioning a closure of a longitudinal frame and a curved-surface outer plate of a ship, wherein the longitudinal frame comprises a connecting plate and an end head connected to one end of the connecting plate, which is far away from the curved-surface outer plate; the method for positioning the closure opening of the ship longitudinal frame and the curved surface outer plate comprises the following steps: defining a connecting point of the connecting plate and the curved outer plate as a point A on a folding port cross section plane design drawing; marking a point B on the curved outer plate, wherein the point B is arranged on the upper side of the connecting plate; defining the distance between the point A and the point B as a; and measuring the distance between the end head and the point B to obtain the length L. The method for positioning the closure opening of the ship longitudinal frame and the curved-surface outer plate is convenient to operate and can accurately position the relative position of the longitudinal frame on the curved-surface outer plate.
Description
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a method for positioning a closure opening of a longitudinal frame and a curved-surface outer plate of a ship.
Background
The segment folding is an essential link in the building process of the ship. The bow and the stern comprise a plurality of linear and curved segment modules. The angle between the longitudinal bone and the curved outer plate on the segmented modules is not a regular angle of 90 degrees or 180 degrees mostly, and is a non-fixed angle. In the prior art, angles are measured in a model and marked on a drawing so as to realize the positioning of a longitudinal bone on a curved outer plate. When the method is adopted, if the angle quantity is inaccurate, a slight deviation can cause a large error. For field construction personnel, an angle gauge is needed, and construction is inconvenient. The accuracy of the angle between the longitudinal bone and the outer plate of the closure opening is always difficult.
Disclosure of Invention
The purpose of the invention is: the method for positioning the closure opening of the ship longitudinal frame and the curved-surface outer plate is convenient to operate and can accurately position the relative position of the longitudinal frame on the curved-surface outer plate.
In order to achieve the purpose, the invention provides a method for positioning a folding opening of a ship longitudinal frame and a curved-surface outer plate, wherein the longitudinal frame comprises a connecting plate and an end head connected to one end of the connecting plate, which is far away from the curved-surface outer plate;
the method for positioning the closure opening of the ship longitudinal frame and the curved surface outer plate comprises the following steps:
defining a connecting point of the connecting plate and the curved outer plate as a point A on a folding port cross section plane design drawing; marking a point B on the curved outer plate, wherein the point B is arranged on the upper side of the connecting plate; defining the distance between the point A and the point B as a;
and measuring the distance between the end head and the point B to obtain the length L.
Optionally, the step of marking the point B on the curved outer panel includes:
drawing a circle by taking the point A as the center of the circle and taking a as the radius; the circle and the curved outer plate are intersected at two points; wherein the intersection point disposed on the upper side is the point B.
Optionally, the longitudinal bone has an overall length greater than a.
Optionally, 195mm ≦ a ≦ 205 mm.
Optionally, a is 200 mm.
Optionally, after measuring the distance between the tip and the point B to obtain the length L, the method further includes:
and determining the actual position of the end head on the curved outer plate according to the length L, and mounting the connecting plate on the curved outer plate.
Optionally, the longitudinal cross-sectional shape of the tip is circular arc.
Optionally, the tip has a first end and a second end; the first end part is connected with the connecting plate; a positioning angle is arranged on the upper side of the second end part;
in the step of measuring the distance between said tip and said point B, comprising:
the distance between the orientation angle and the point B is measured.
Compared with the prior art, the ship longitudinal frame and curved surface outer plate folding opening positioning method provided by the invention has the beneficial effects that: and finding a point B on the curved surface outer plate according to the distance a, and measuring the distance between the end and the point B to obtain the length L. The length L is the distance between the end head and the curved surface outer plate under the actual working condition, and the installation position of the longitudinal bone can be obtained by the worker according to the length L under the condition that the position of the point A is known. The method is convenient to operate in site construction, the position of the longitudinal frame can be measured and positioned by one tape measure without using other measuring tools, and the effects of ensuring the positioning precision and facilitating site installation can be achieved.
Drawings
FIG. 1 is a schematic structural diagram of a method for positioning a closure of a longitudinal frame and a curved outer plate of a ship according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a method for positioning a closure of a ship longitudinal frame and a curved outer plate (a plurality of longitudinal frames) according to an embodiment of the present invention.
In the figure, 1, a curved outer plate; 2. a longitudinal bone; 21. a connecting plate; 22. a tip; 3. and (6) positioning an angle.
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.
In the description of the present invention, it should be understood that the terms used in the present invention are used in the description of the present invention, and it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", etc. in the present invention are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed in a specific direction and operation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1 and 2, the positioning structure for the closure of the ship longitudinal frame and the curved outer plate comprises a longitudinal frame 2 and a curved outer plate 1. Wherein, the longitudinal frame 2 comprises a connecting plate 21 and a tip 22 connected to one end of the connecting plate 21 far away from the curved outer plate 1. The tip 22 extends downward in the depth direction of the ship.
The invention discloses a method for positioning a folding opening of a ship longitudinal frame 2 and a curved surface outer plate 1, which comprises the following steps:
defining the connecting point of the connecting plate 21 and the curved outer plate 1 as a point A on a folding port cross section plane design drawing; marking a point B on the curved-surface outer plate 1, wherein the point B is arranged on the upper side of the connecting plate 21; defining the distance between the point A and the point B as a; in the present embodiment, point a is the intersection of the connecting plate 21 and the inner surface of the curved outer panel 1, and point B is a point on the inner surface of the curved outer panel 1.
The distance between tip 22 and point B is measured to obtain length L.
Based on the technical scheme, the point A is a known point, marks are made at corresponding positions by a cutting machine when the curved outer plate 1 is blanked, and the mark is marked as the point A. The point A is the connection between the end of the connecting plate 21 and the curved outer plate 1. As is well known, the surface of the curved outer plate 1 is a curved surface. When point B is found on the curved outer plate 1, the distance a between point a and point B is approximately equal to the arc length from point a to point B on the curved outer plate 1. And measuring the distance between the end head 22 and the point B, wherein the obtained length L is the positioning data of the end head 22 of the longitudinal frame 2 and the curved surface outer plate 1. During actual installation and positioning, a worker only needs to find the point B and position the end 22 of the longitudinal frame 2 on the curved surface outer plate 1 according to the length L, and the field operation is convenient. The positioning is carried out by measuring the length, so that the closure longitudinal frame 2 is accurately positioned.
The step of marking the point B on the curved-surface outer plate 1 comprises the following steps: drawing a circle by taking the point A as the center of the circle and taking a as the radius; the circle and the curved outer plate 1 are intersected at two points; the intersection point disposed on the upper side is point B. The point B is the intersection of the circle and the inner surface of the curved outer panel 1. The position of the point B is determined in a circle drawing mode, the operation of measuring and marking is convenient, the production design drawing is convenient, a circle with the radius of a is directly drawn in the folding opening section drawing by taking the point A as the circle center, and the linear distance from the point B to the end head 22 is measured to obtain positioning data. As shown in fig. 1, the overall length of the longitudinal frame 2 is greater than a. The intersection of the circle with the longitudinal bone 2 is on the web 21 and not at the tip 22.
Specifically, the distance a between point a and point B is: a is more than or equal to 195mm and less than or equal to 205 mm. When a is larger than 205mm, the error between the straight-line distance between the point A and the point B and the arc length from the point A to the point B on the curved outer plate 1 is larger. When a is smaller than 195mm, the worker is not easy to operate on site, and a large error is generated between the estimated position of the tip 22 and the actual position of the tip 22. According to the field construction experience, the most suitable value is that a is 200 mm.
More specifically, after measuring the distance between the tip 22 and the point B, and obtaining the length L, the method further includes: the actual end 22 is positioned on the curved outer panel 1 based on the length L, and the connecting plate 21 is attached to the curved outer panel 1. In actual construction, the position of the point A on the curved-surface outer plate 1 is known, and the position of the end head 22 is obtained according to the length L, so that the longitudinal frame 2 can be accurately installed.
Furthermore, the longitudinal section of the end 22 is arc-shaped, so that workers are prevented from being scraped by sharp corners during installation. The tip 22 has a first end and a second end; the first end is connected with the connecting plate 21; the upper side of the second end part is provided with a positioning angle 3; in the step of measuring the distance between the tip 22 and the point B, it comprises: the distance between the orientation angle 3 and the point B is measured. Because the area of the end head 22 is large, in order to ensure accurate measurement, the positioning angle 3 on the end head 22 is used as a measuring point, and overlarge errors are avoided. The angle of orientation 3 in this embodiment is about 90.
The working process of the invention is as follows: the closure cross-sectional plan is cut away to give a typical nodal cross-sectional view. A circle with the radius of 200mm is drawn by taking the joint point A of the connecting plate 21 and the curved outer plate 1 as the center of the circle. The circle and the curved outer plate 1 create two intersection points, wherein point B is arranged on the upper side of the longitudinal bar 2. The straight line distance between the point A and the point B is approximately as long as the arc length between the point A and the point B on the curved surface outer plate 1, and the length is about 200 mm. And (3) measuring the distance L between the positioning angle 3 and the point B, wherein the L is the positioning data of the longitudinal frame 2 and the curved surface outer plate 1. In actual operation, the point a is a mark point made by the cutting machine at a corresponding place when the curved outer panel 1 is blanked. With the position of the point a known, the actual location of the locating angle 3 at the end 22 is determined on the curved outer panel 1 based on the distance L, so that the attachment plate 21 is accurately mounted on the curved outer panel 1.
In summary, the embodiment of the invention provides a method for positioning a closure of a ship longitudinal frame and a curved outer plate, which finds a point B on the curved outer plate according to a distance a, and measures a distance between an end and the point B to obtain a length L. The length L is the distance between the end head and the curved surface outer plate under the actual working condition, and the installation position of the longitudinal bone can be obtained by the worker according to the length L under the condition that the position of the point A is known. The method is convenient to operate in site construction, the position of the longitudinal frame can be measured and positioned by one tape measure without using other measuring tools, and the effects of ensuring the positioning precision and facilitating site installation can be achieved.
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 (8)
1. A method for positioning a closure opening of a ship longitudinal frame and a curved-surface outer plate is characterized in that the longitudinal frame comprises a connecting plate and an end head connected to one end of the connecting plate, which is far away from the curved-surface outer plate;
the method for positioning the closure opening of the ship longitudinal frame and the curved surface outer plate comprises the following steps:
defining a connecting point of the connecting plate and the curved outer plate as a point A on a folding port cross section plane design drawing; marking a point B on the curved outer plate, wherein the point B is arranged on the upper side of the connecting plate; defining the distance between the point A and the point B as a;
and measuring the distance between the end head and the point B to obtain the length L.
2. The method for positioning the closure of the ship longitudinal frame and the curved outer plate according to claim 1, wherein the step of marking the point B on the curved outer plate comprises the following steps:
drawing a circle by taking the point A as the center of the circle and taking a as the radius; the circle and the curved outer plate are intersected at two points; wherein the intersection point disposed on the upper side is the point B.
3. The method for positioning the closure of the longitudinal frame and the curved outer plate of the ship as claimed in claim 2, wherein the total length of the longitudinal frame is greater than a.
4. The method for positioning the closure of the longitudinal frame and the curved outer plate of the ship according to claim 1 or 3, wherein a is not less than 195mm and not more than 205 mm.
5. The method for positioning the closure of the longitudinal frame and the curved outer plate of the ship as claimed in claim 4, wherein a is 200 mm.
6. The method for positioning the closure of the longitudinal frame and the curved outer plate of the ship according to claim 1, wherein after measuring the distance between the end and the point B to obtain the length L, the method further comprises:
and determining the actual position of the end head on the curved outer plate according to the length L, and mounting the connecting plate on the curved outer plate.
7. The method for positioning the closure of the ship longitudinal frame and the curved outer plate as claimed in claim 6, wherein the longitudinal section of the end head is arc-shaped.
8. The method of claim 7, wherein the end head has a first end and a second end; the first end part is connected with the connecting plate; a positioning angle is arranged on the upper side of the second end part;
in the step of measuring the distance between said tip and said point B, comprising:
the distance between the orientation angle and the point B is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110456653.0A CN113071629A (en) | 2021-04-26 | 2021-04-26 | Method for positioning closure opening of ship longitudinal frame and curved surface outer plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110456653.0A CN113071629A (en) | 2021-04-26 | 2021-04-26 | Method for positioning closure opening of ship longitudinal frame and curved surface outer plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113071629A true CN113071629A (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110456653.0A Pending CN113071629A (en) | 2021-04-26 | 2021-04-26 | Method for positioning closure opening of ship longitudinal frame and curved surface outer plate |
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| CN (1) | CN113071629A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020071238A (en) * | 2001-03-05 | 2002-09-12 | 대우조선해양 주식회사 | Making method of a ship's side shell |
| CN103499263A (en) * | 2013-09-29 | 2014-01-08 | 扬州大洋造船有限公司 | Positioning survey tool for bulk cargo ship folding hole longitudinal |
| CN203473184U (en) * | 2013-08-20 | 2014-03-12 | 广州文冲船厂有限责任公司 | Longitudinal all-purpose adjustable sample plate of boat body |
| CN206410623U (en) * | 2016-12-16 | 2017-08-15 | 上海江南长兴造船有限责任公司 | It is a kind of to indulge the survey tool that bone is installed for ship hull plate |
| CN206514792U (en) * | 2017-03-03 | 2017-09-22 | 江南造船(集团)有限责任公司 | The auxiliary conditioning unit of bone setting angle is indulged on a kind of curved outside plate of hull |
| CN108555500A (en) * | 2018-04-24 | 2018-09-21 | 上海交通大学 | A kind of vertical bone positioning device and its localization method |
| KR101995787B1 (en) * | 2019-01-23 | 2019-07-03 | (주)광명기술단 | Deformation measuring apparatus of bridge bearing |
| CN111776164A (en) * | 2020-05-22 | 2020-10-16 | 沪东中华造船(集团)有限公司 | High-precision rapid positioning method for side outer plate body |
-
2021
- 2021-04-26 CN CN202110456653.0A patent/CN113071629A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020071238A (en) * | 2001-03-05 | 2002-09-12 | 대우조선해양 주식회사 | Making method of a ship's side shell |
| CN203473184U (en) * | 2013-08-20 | 2014-03-12 | 广州文冲船厂有限责任公司 | Longitudinal all-purpose adjustable sample plate of boat body |
| CN103499263A (en) * | 2013-09-29 | 2014-01-08 | 扬州大洋造船有限公司 | Positioning survey tool for bulk cargo ship folding hole longitudinal |
| CN206410623U (en) * | 2016-12-16 | 2017-08-15 | 上海江南长兴造船有限责任公司 | It is a kind of to indulge the survey tool that bone is installed for ship hull plate |
| CN206514792U (en) * | 2017-03-03 | 2017-09-22 | 江南造船(集团)有限责任公司 | The auxiliary conditioning unit of bone setting angle is indulged on a kind of curved outside plate of hull |
| CN108555500A (en) * | 2018-04-24 | 2018-09-21 | 上海交通大学 | A kind of vertical bone positioning device and its localization method |
| KR101995787B1 (en) * | 2019-01-23 | 2019-07-03 | (주)광명기술단 | Deformation measuring apparatus of bridge bearing |
| CN111776164A (en) * | 2020-05-22 | 2020-10-16 | 沪东中华造船(集团)有限公司 | High-precision rapid positioning method for side outer plate body |
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Application publication date: 20210706 |