CN112027024B - Novel guide frame pre-trimming method - Google Patents
Novel guide frame pre-trimming method Download PDFInfo
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- CN112027024B CN112027024B CN202010830709.XA CN202010830709A CN112027024B CN 112027024 B CN112027024 B CN 112027024B CN 202010830709 A CN202010830709 A CN 202010830709A CN 112027024 B CN112027024 B CN 112027024B
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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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- 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
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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Abstract
The invention discloses a novel guide frame pre-trimming method, which comprises the following steps: measuring a distance value between the guide frame surface on the first transverse wall and the second transverse wall to obtain a first numerical value; the first transverse wall is a transverse wall on which a guide frame is already installed during the construction of the ship body, and the second transverse wall is a transverse wall on which no guide frame in bulk is installed during the construction of the ship body; the first transverse wall and the second transverse wall are arranged between two adjacent transverse walls; obtaining a theoretical spacing value between a guide frame surface on the first transverse wall and a bulk guide frame surface on the second transverse wall to obtain a second numerical value; calculating a difference value between the first numerical value and the second numerical value to obtain a third numerical value; cutting the toggle plates of the bulk guide frame according to a third numerical value, so that the distance value from the surface of the bulk guide frame to the lower opening of the toggle plates is the third numerical value; according to the technical scheme, the guide frame installation efficiency is effectively improved, the construction difficulty is greatly reduced, the use of a crane is reduced, the construction efficiency of guide frame installation is improved, the use control cost and period of the crane are reduced, and the purposes of cost reduction and efficiency improvement are achieved.
Description
Technical Field
The invention relates to the technical field of ship finishing, in particular to a novel guide frame pre-finishing method.
Background
The double-fuel container ship is a container ship in new countryside, the ship guide frame is in the form of an integral special-shaped guide frame structure, compared with the structural form of the traditional container ship guide frame, the double-fuel container ship is completely different, the external dimension and the weight of the double-fuel container ship are much larger, the maximum weight of a single double-fuel container ship is about 8T, the structure of the series of ship guide frames is complex, the thickness of a plate is 60mm at most, and the maximum width and the length are 2000mm multiplied by 1500 mm. The main construction process and mode of the bulk guide frame in the original traditional method are that the crane is used for hoisting in a matched mode, measuring, roughly positioning, cutting allowance, finely positioning, grooving and the like, and the whole process needs to be completed in a matched mode. When a worker applies the traditional method to a dual-fuel container ship, the single guide frame is long in installation time and cannot be constructed simultaneously, the single guide frame is large in quantity, and a large amount of crane resources are occupied; the guide frame has small installation tolerance and high precision requirement, and the crane is difficult to match, position and adjust, so that the overall precision control result is not ideal and the risk of rework exists; the whole guide frame has long installation period, and brings great influence to the ship period. Therefore, when the traditional method is applied to the dual-fuel container ship, the installation period of the guide frame is long, the installation accuracy is poor, the rework risk exists, and the improvement space exists.
The field guide frame of the dual-fuel container ship is arranged between two adjacent transverse walls, when the actual ship body is constructed, one transverse wall is provided with the guide frame, the other transverse wall is not provided with the guide frame, and the guide frame is called as a bulk guide frame in the ship body construction; the installation accuracy of the guide frame mainly controls the longitudinal and transverse spacing of the guide frame, and the left and right sides of the guide frame can be adjusted when the guide frame is installed at the transverse spacing. Aiming at the field guide frame installation characteristics of the dual-fuel container ship, the technical scheme of the invention provides a novel guide frame pre-finishing strategy to improve the guide frame installation efficiency, greatly reduce the construction difficulty, reduce the use of a crane, improve the construction efficiency of guide frame installation, reduce the use control cost and period of the crane and realize the purposes of cost reduction and efficiency improvement.
Disclosure of Invention
The invention provides a novel guide frame pre-trimming method, which improves the guide frame installation efficiency, greatly reduces the construction difficulty, reduces the use of a crane, improves the construction efficiency of guide frame installation, reduces the use control cost and period of the crane, and achieves the purposes of cost reduction and efficiency improvement.
In order to solve the above technical problem, an embodiment of the present invention provides a novel method for pre-trimming a guide frame, including:
measuring a distance value between the guide frame surface on the first transverse wall and the second transverse wall to obtain a first numerical value; the first transverse wall is a transverse wall on which a guide frame is already installed during the construction of the ship body, and the second transverse wall is a transverse wall on which no guide frame is installed during the construction of the ship body in bulk; the first transverse wall and the second transverse wall are arranged between two adjacent transverse walls;
obtaining a theoretical spacing value between the guide frame surface on the first transverse wall and the bulk guide frame surface on the second transverse wall to obtain a second numerical value;
calculating a difference value between the first numerical value and the second numerical value to obtain a third numerical value;
and cutting the toggle plate of the bulk guide frame according to the third numerical value, so that the distance value from the surface of the bulk guide frame to the lower opening of the toggle plate is the third numerical value.
Preferably, in the step of measuring the distance between the guide frame surface on the first transverse wall and the second transverse wall, the distance between the guide frame surface on the first transverse wall and the second transverse wall is measured by a total station.
As a preferred scheme, the step of measuring a distance value between the guide frame surface on the first transverse wall and the second transverse wall by using a total station specifically comprises:
establishing a coordinate system for the alignment center line through a total station;
determining a measuring position according to the height and the width of a mounting point of a bracket elbow plate of the bulk guide frame on a second transverse wall in a drawing;
and measuring the spacing value between the guide frame surface on the first transverse wall and the second transverse wall by carrying out space length data in the coordinate system.
Preferably, the difference between the height of the measuring position and the height of the mounting point of the bracket elbow plate of the bulk guide frame on the second transverse wall in the drawing is not more than 50 mm; the difference between the width of the measuring position and the width of the mounting point of the bracket of the bulk guide frame on the second transverse wall in the drawing is not more than 50 mm.
As a preferred scheme, in the step of calculating the difference between the first value and the second value to obtain a third value, the step specifically includes:
and taking a difference value obtained by subtracting the second numerical value from the first numerical value as a third numerical value.
Preferably, the step of cutting the toggle plate of the bulk loading guide frame according to the third value so that the distance value from the surface of the bulk loading guide frame to the lower opening of the toggle plate is the third value specifically comprises:
after the distance value from the surface of the bulk guide frame to the lower opening of the toggle plate is measured to reach the third numerical value, scribing at the lower corner of the toggle plate of the bulk guide frame;
and performing allowance cutting on the toggle plate of the bulk guide frame according to the scribing line.
Preferably, after the cutting of the toggle plate of the bulk guide according to the third value is performed so that the distance value from the surface of the bulk guide to the lower opening of the toggle plate is the third value, the method further includes: and installing the bulk guide frame after the cutting is finished.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the technical scheme, under the current situations that the guide frame installation efficiency is low in the current stage and a large amount of manpower and material resources need to be input, the process method is improved, the time and the mode for cutting the allowance of the special-shaped guide frame are determined, the guide frame pre-trimming concept is provided, the allowance cutting on the ship in the current stage of the guide frame is trimmed and cut on the ground in advance through technical determination, the guide frame installation efficiency is effectively improved, the construction difficulty is greatly reduced, the use of a crane is reduced, the construction efficiency of guide frame installation is improved, the use control cost and the use control period of the crane are reduced, and the purposes of cost reduction and efficiency improvement are achieved.
Drawings
FIG. 1: the step flow chart of the novel guide frame pre-trimming method provided by the embodiment of the invention is shown;
FIG. 2: is a schematic diagram of the measurement in the embodiment of the invention;
FIG. 3: a schematic diagram of the cutting of the margin line of the lead frame in this embodiment is shown.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, a flowchart of steps of a novel method for pre-trimming a guide frame according to an embodiment of the present invention includes steps 101 to 104, and the steps are as follows:
step 101, measuring a distance value between a guide frame surface on a first transverse wall and a second transverse wall to obtain a first numerical value; the first transverse wall is a transverse wall on which a guide frame is already installed during the construction of the ship body, and the second transverse wall is a transverse wall on which no guide frame is installed during the construction of the ship body in bulk; the first transverse wall and the second transverse wall are arranged between two adjacent transverse walls.
Specifically, as shown in fig. 2, fig. 2 is a schematic measurement diagram in the embodiment of the present invention. The distance between two guide frame surfaces is controlled by controlling the longitudinal distance of the guide frames, namely the distance between the guide frame surface which is installed and the guide frame surface which is bulk loaded is controlled. The pedestal spacing is a standard datum in hull construction, and in order to satisfy the subsequent container ship packing function, it is specified herein that the letter L is used instead (assuming the constructed dual fuel container pedestal longitudinal spacing standard is 13750). The method is characterized in that a single-side guide frame is installed in the actual building process of the ship, the distance between the surface of the guide frame and the adjacent transverse wall can be measured, the letter L1 is used for replacing data needing to be measured subsequently, the actual measurement data L1 is found to be a part longer than the required theoretical guide frame distance L through analysis, and the length needs to be filled through a bracket plate of the bulk guide frame, namely the length from a panel of the bulk guide frame to the lower corner of the bracket plate needs to be kept at L1-L.
And 102, acquiring a theoretical spacing value between the guide frame surface on the first transverse wall and the bulk guide frame surface on the second transverse wall to obtain a second numerical value.
Step 103, calculating a difference between the first value and the second value to obtain a third value.
In this embodiment, the step of calculating the difference between the first numerical value and the second numerical value to obtain a third numerical value specifically includes: and taking a difference value obtained by subtracting the second numerical value from the first numerical value as a third numerical value.
And 104, cutting the toggle plate of the bulk guide frame according to the third value, so that the distance value from the surface of the bulk guide frame to the lower opening of the toggle plate is the third value.
In this embodiment, in the step 104, specifically: step 1041, after the distance value from the surface of the bulk guide frame to the lower opening of the toggle plate is measured and measured to reach the third numerical value, scribing at the lower corner of the toggle plate of the bulk guide frame; and 1042, performing allowance cutting on the toggle plate of the bulk guide frame according to the scribing line.
Specifically, as shown in fig. 3, fig. 3 is a schematic cutting diagram of the lead frame margin line in the present embodiment. By scaling the data: L1-L ═ B; the B value is the distance between the guide frame surface installed in bulk and the lower opening of the bracket toggle plate of the guide frame. A B value is measured on a guide frame in bulk, then a line is drawn at the lower corner of a bracket of the guide frame, the line is a guide frame allowance line, and allowance cutting is carried out in advance according to the line.
The guide frame installation precision mainly controls the longitudinal and transverse spacing of the guide frame, and the left and right sides can be adjusted during transverse spacing installation.
According to the technical scheme of the embodiment of the invention, under the current situations that the guide frame installation efficiency is low in the current stage and a large amount of manpower and material resources are required to be input, the technological method is improved, the timing and the mode for cutting the allowance of the special-shaped guide frame are determined, the guide frame pre-trimming concept is provided, the allowance cutting on the ship in the current stage of the guide frame is repaired and cut on the ground in advance through technical determination, the guide frame installation efficiency is effectively improved, the construction difficulty is greatly reduced, the use of a crane is reduced, the construction efficiency of the guide frame installation is improved, the use control cost and the use control period of the crane are reduced, and the purposes of reducing cost and improving efficiency are achieved.
Example two
In this embodiment, in the step of measuring the distance between the guide surface on the first transverse wall and the second transverse wall, the distance between the guide surface on the first transverse wall and the second transverse wall is measured by a total station.
In this embodiment, the step of measuring a distance value between the guide frame surface on the first transverse wall and the second transverse wall by using the total station specifically includes: establishing a coordinate system for the alignment center line through a total station; determining a measuring position according to the height and the width of a mounting point of a bracket elbow plate of the bulk guide frame on a second transverse wall in a drawing; and measuring the spacing value between the guide frame surface on the first transverse wall and the second transverse wall by carrying out space length data in the coordinate system.
Specifically, after the main structure of the ship body is carried, the data in the cabin are measured, a common instrument for building the ship body, namely a total station (an instrument capable of establishing a three-dimensional coordinate system and measuring the position in space can be replaced if the instrument has the same function), is used, functions of X-1 and X-2 are used for aligning a center line to establish the coordinate system, the total station is used for measuring space length data L1, the measuring point is the mounting position of a guide bracket and a toggle plate, and the measuring position is determined by the height and the width of the mounting point of the guide bracket and the toggle plate in a drawing when the specific point is selected.
In the embodiment, the width and the height of the front and rear guide frames are quickly and accurately determined to be matched with the corresponding measuring points in space through the total station on-site measurement.
EXAMPLE III
In the embodiment, the difference between the height of the measuring position and the height of the mounting point of the toggle plate of the bulk guide frame on the second transverse wall in the drawing is not more than 50 mm; the difference between the width of the measuring position and the width of the mounting point of the bracket of the bulk guide frame on the second transverse wall in the drawing is not more than 50 mm.
Specifically, in order to ensure that the accuracy of the measured length is not more than 1mm, and the width and height errors of the measured points are not more than 50mm (CSQS specification is according to 1:50 transition operation gentle processing), the toggle plate mounting drawing has a theoretical height and width value when being designed, and tabulation measurement record data is compiled by combining the theoretical height and width values.
The embodiment three-way mode comprises the steps of selecting the time point of the measuring point on the guide frame marking line after the data conversion is finished, and aligning the line and the plane data mode when the data between the points are different. The width and height deviation of the measuring point cannot exceed 50mm, so that the accuracy of subsequent allowance is effectively guaranteed, and the mounting accuracy is guaranteed.
Example four
In this embodiment, after the cutting the toggle plate of the bulk goods guide according to the third value so that the distance value from the surface of the bulk goods guide to the lower opening of the toggle plate is the third value, the method further includes: and installing the bulk guide frame after the cutting is finished.
The technical scheme of the invention has the advantages that:
1. the guide frame is effectively prevented from being used for measuring, marking, cutting allowance and forming a groove by matching a crane, so that crane resources are saved; a single ship saves about 8W.
2. The supply and demand move forward, and simultaneously the ground can carry out allowance cutting, thereby greatly saving the operation time on the ship, and saving the operation period in the dock for a single ship by about 100 hours.
3. The ground scribing and cutting safety is greatly improved, and the operations of high-altitude measurement, scribing, allowance, slope groove opening and the like are fully solved.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (6)
1. A novel guide frame pre-trimming method is characterized by comprising the following steps:
measuring a distance value between the guide frame surface on the first transverse wall and the second transverse wall to obtain a first numerical value; the first transverse wall is a transverse wall on which a guide frame is already installed during the construction of the ship body, and the second transverse wall is a transverse wall on which no guide frame is installed during the construction of the ship body in bulk; the first transverse wall and the second transverse wall are arranged between two adjacent transverse walls;
obtaining a theoretical spacing value between the guide frame surface on the first transverse wall and the bulk guide frame surface on the second transverse wall to obtain a second numerical value;
calculating a difference value between the first numerical value and the second numerical value to obtain a third numerical value; specifically, a difference value obtained by subtracting the second numerical value from the first numerical value is used as a third numerical value;
and cutting the toggle plate of the bulk guide frame according to the third numerical value, so that the distance value from the surface of the bulk guide frame to the lower opening of the toggle plate is the third numerical value.
2. The novel method of pre-finishing a guide frame as claimed in claim 1, wherein in the step of measuring the distance between the guide frame surface on the first transverse wall and the second transverse wall, the distance between the guide frame surface on the first transverse wall and the second transverse wall is measured by a total station.
3. The method for pre-finishing a new type of guide frame as claimed in claim 2, wherein the step of measuring the distance between the guide frame surface on the first transverse wall and the second transverse wall by means of a total station comprises:
establishing a coordinate system for the alignment center line through a total station;
determining a measuring position according to the height and the width of a mounting point of a bracket elbow plate of the bulk guide frame on a second transverse wall in a drawing;
and measuring the spacing value between the guide frame surface on the first transverse wall and the second transverse wall by carrying out space length data in the coordinate system.
4. A novel method for pre-trimming a guide frame as claimed in claim 3, wherein the difference between the height of the measuring position and the height of the mounting point of the bracket plate of the guide frame in bulk on the second transverse wall in the drawing is not more than 50 mm; the difference between the width of the measuring position and the width of the mounting point of the bracket of the bulk guide frame on the second transverse wall in the drawing is not more than 50 mm.
5. The method for pre-finishing a new type of guide frame according to claim 1, wherein the step of cutting the toggle plate of the bulk guide frame according to the third value so that the distance value from the surface of the bulk guide frame to the lower opening of the toggle plate is the third value comprises the following steps:
after the distance value from the surface of the bulk guide frame to the lower opening of the toggle plate is measured to reach the third numerical value, scribing at the lower corner of the toggle plate of the bulk guide frame;
and performing allowance cutting on the toggle plate of the bulk guide frame according to the scribing line.
6. The novel method of pre-finishing a bulk carrier as defined in claim 1, further comprising, after said cutting the toggle plate of the bulk carrier according to the third value so that the distance from the surface of the bulk carrier to the lower opening of the toggle plate has the third value: and installing the bulk guide frame after the cutting is finished.
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| CN202010830709.XA CN112027024B (en) | 2020-08-18 | 2020-08-18 | Novel guide frame pre-trimming method |
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| CN112027024B true CN112027024B (en) | 2021-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100705208B1 (en) * | 2005-09-12 | 2007-04-06 | 현대중공업 주식회사 | Integrated cell guide system of container carrier |
| CN101423105B (en) * | 2008-11-28 | 2012-07-04 | 大连船舶重工集团有限公司 | Mounting method of guide-rail for container ship |
| KR20140011815A (en) * | 2012-07-20 | 2014-01-29 | 에스티엑스조선해양 주식회사 | Cell guide measuring system for ship |
| CN103640667B (en) * | 2013-12-05 | 2017-02-22 | 江苏新时代造船有限公司 | Process for mounting container vessel transverse bulkhead guide rail bracket in section |
| CN104494784B (en) * | 2014-12-29 | 2017-01-25 | 广州文冲船厂有限责任公司 | Manufacturing and mounting method of container ship guide frame |
| CN105644715B (en) * | 2015-12-29 | 2017-11-14 | 大连船舶重工集团有限公司 | Cross wall section guide rail bracket installation method |
| CN109094726B (en) * | 2018-09-28 | 2020-07-03 | 中船黄埔文冲船舶有限公司 | Quick installation device and method for ship guide frame |
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