CN113798800A - Production process for high-precision straight segmented manufacturing - Google Patents
Production process for high-precision straight segmented manufacturing Download PDFInfo
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- CN113798800A CN113798800A CN202111159184.2A CN202111159184A CN113798800A CN 113798800 A CN113798800 A CN 113798800A CN 202111159184 A CN202111159184 A CN 202111159184A CN 113798800 A CN113798800 A CN 113798800A
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- keel
- plate
- veneer
- production process
- precision
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a production process for high-precision straight segmented manufacturing, which comprises the following steps of: s1, splicing the single-plate keel: drawing a marking line on one circle of each veneer keel, wherein the distance between the marking line and the boundary is 100mm, and splicing and welding a plurality of veneer keels together to form a straight section; s2, overall size complex ruler: measuring the distance between the marking lines on two adjacent single-plate keel bars, and ensuring that the distance between the two lines is 200mm, namely ensuring the integral precision; s3, rolling into the next station: transporting the straight sections which are qualified to be built to the next procedure; the concrete production process of the used veneer keel and the technical field of straight and segmented manufacturing of ships. The production process has the advantages of good precision, high efficiency, high automation degree, high flow rate, less waste and the like, and particularly, the welding workload can be reduced by adopting a veneer keel plate splicing technology and splicing straight sections by using veneer keels.
Description
Technical Field
The invention relates to the technical field of ship straight section manufacturing, in particular to a production process for high-precision straight section manufacturing.
Background
In the current ship building process, the manufacturing process flow generally adopted for manufacturing the straight section of the assembly line is as follows: the method comprises the following steps of main board splicing (multiple light boards), a total size complex ruler, a surplus cutting-off, an assembly line painting (manual), a longitudinal material welding and a rolling-in next station, wherein in the process flow, all the processes from the main board splicing to the longitudinal material welding are completed in the same station, and the defects of long operation period, low production efficiency, complex process and the like exist.
Disclosure of Invention
The invention provides a production process for high-precision straight section manufacturing, aiming at solving the problems that in the existing process flow, all processes from the start of plate splicing to the completion of longitudinal material welding are completed in the same station, and the defects of long operation period, low production efficiency, complicated process and the like exist.
In order to achieve the purpose, the invention adopts the following technical scheme: a production process for high-precision straight section manufacturing comprises the following steps:
s1, splicing the single-plate keel:
drawing a marking line on one circle of each veneer keel, wherein the distance between the marking line and the boundary is 100mm, and splicing and welding a plurality of veneer keels together to form a straight section;
s2, overall size complex ruler:
measuring the distance between the marking lines on two adjacent single-plate keel bars, and ensuring that the distance between the two marking lines is 200mm, namely ensuring the integral precision;
s3, rolling into the next station:
and (5) transporting the straight sections which are qualified to be built to the next procedure.
As a further description of the above technical solution:
further comprising: manufacturing the veneer keel:
in a ship body workshop, a plurality of vertical plates are welded on a main plate in parallel to form a single plate keel;
the vertical plate is a T-shaped section or L-shaped section.
As a further description of the above technical solution:
the manufacture of the veneer keel comprises the following steps:
1. preparing a station:
the main board is hung on a preparation station roller way and placed, the front end of the main board stops advancing after touching an advancing limit and abuts against a reference edge, and then the main board is fixed;
2. assembling stations:
aligning a rear clamping device and an automatic spot welding device to a longitudinal material assembly line, then hanging a vertical plate, enabling the rear clamping device to clamp the tail end of the vertical plate, enabling the automatic spot welding device to clamp the head end of the vertical plate, enabling the automatic spot welding device to run towards the tail end, and enabling the automatic spot welding device to perform automatic spot welding on the vertical plate;
3. welding stations:
welding the vertical plate and the main plate by twenty-electrode welding equipment;
4. leveling and moving out of the station:
and leveling the deformation of the main plate by adopting a multi-connected roller type correcting device.
As a further description of the above technical solution:
and one group of the veneer keel comprises 2-5 vertical plates.
As a further description of the above technical solution:
the main plate has a pair of reference edges parallel to each other.
The invention has the beneficial effects that: the production process has the advantages of good precision, high efficiency, high automation degree, high flow rate, less waste and the like, and particularly, the welding workload can be reduced by adopting a veneer keel plate splicing technology and splicing straight sections by using veneer keels.
The process also designs the specific production process of the single-plate keel, and provides the production process of the single-plate keel, which has high production efficiency and high production precision.
Drawings
To more clearly illustrate one production process for high precision straight segment fabrication, the following figures are shown;
FIG. 1 is a perspective view of a veneer keel of the present invention;
FIG. 2 is a perspective view of a straight section of the present invention in use;
Detailed Description
Referring to fig. 1 and 2, in which fig. 1 and 2 show a production process for high-precision straight segment fabrication provided by an embodiment of the present application, including the following steps:
s1, splicing the single-plate keel:
drawing a marking line on one circle of each veneer keel, wherein the distance between the marking line and the boundary is 100mm, and splicing and welding a plurality of veneer keels together to form a straight section;
s2, overall size complex ruler:
the whole size is smaller than 3mm, and the problem can be solved through flash seams among plates; the situation that the two boards are one big and one small can be solved by mutually borrowing, and the cutting precision and the line drawing precision are high enough in the front, so that the total splicing size is basically equivalent to the preset size, and the cutting and repairing are basically not needed.
In terms of efficiency, the materials only occupy the time of one plate splicing period at the plate splicing station in the process, so that the time of marking, cutting and repairing and keel installation is eliminated, and the turnover efficiency is greatly increased;
s3, rolling into the next station:
and (5) transporting the straight sections which are qualified to be built to the next procedure.
The veneer keel is composed of a main board and a T-shaped section or an L-shaped section, is manufactured in a hull workshop, and is transported to a parallel subsection welding workshop for assembly in a mode that the maximum weight is less than 40T;
the production of mainboard adopts mainboard cutting process, chooses for use high accuracy gate-type flame cutting machine to cut, ensures that diagonal and overall dimension error are less than 1mm, and the mainboard after the cutting uses numerical control line printer to paint frame line and assembly line and other auxiliary lines.
The manufacture of the veneer keel comprises the following steps:
1. preparing a station:
the main board is hung on a preparation station roller way and placed, the front end of the main board stops moving after touching a moving limit and is close to a reference edge, then the main board is fixed, and the shape of the main board determines the shape of a spliced board of the single board keel, so that the shape of the main board is controlled when the single board keel is manufactured;
2. assembling stations:
aligning a rear clamping device and an automatic spot welding device to a longitudinal material assembly line, then hanging a vertical plate, enabling the rear clamping device to clamp the tail end of the vertical plate, enabling the automatic spot welding device to clamp the head end of the vertical plate, enabling the automatic spot welding device to run towards the tail end, and enabling the automatic spot welding device to perform automatic spot welding on the vertical plate;
3. welding stations:
the vertical plate and the main plate are welded by twenty-electrode welding equipment, 5 keel bars can be welded and formed at one time, and the welding speed is high and the forming is good;
4. leveling and moving out of the station:
the multi-connection roller type correcting device is adopted to level the deformation of the main board, five groups of pressurizing and pressing units are adopted, automatic alignment is realized through reading data, and the deformation of the main board caused by welding of the single-board keel and five keels at most is completely leveled in one rolling process.
The group of the single-plate keel comprises 2-5 vertical plates, the main plate is provided with a pair of mutually parallel reference edges which can be rectangular or right trapezoid, the angle between the edge at the tail end of the main plate and the reference edge needs to be 85-95 degrees, and the tail end can be selected to be a straight edge or a curve-shaped edge.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (5)
1. A production process for high-precision straight subsection manufacturing is characterized by comprising the following steps:
s1, splicing the single-plate keel:
drawing a marking line on one circle of each veneer keel, wherein the distance between the marking line and the boundary is 100mm, and splicing and welding a plurality of veneer keels together to form a straight section;
s2, overall size complex ruler:
measuring the distance between the marking lines on two adjacent single-plate keel bars, and ensuring that the distance between the two marking lines is 200mm, namely ensuring the integral precision;
s3, rolling into the next station:
and (5) transporting the straight sections which are qualified to be built to the next procedure.
2. The production process for high-precision straight segment fabrication according to claim 1, further comprising: manufacturing the veneer keel:
in a ship body workshop, a plurality of vertical plates are welded on a main plate in parallel to form a single plate keel;
the vertical plate is a T-shaped section or L-shaped section.
3. The production process for high-precision straight segment fabrication according to claim 2, wherein: the manufacture of the veneer keel comprises the following steps:
1. preparing a station:
the main board is hung on a preparation station roller way and placed, the front end of the main board stops advancing after touching an advancing limit and abuts against a reference edge, and then the main board is fixed;
2. assembling stations:
aligning a rear clamping device and an automatic spot welding device to a longitudinal material assembly line, then hanging a vertical plate, enabling the rear clamping device to clamp the tail end of the vertical plate, enabling the automatic spot welding device to clamp the head end of the vertical plate, enabling the automatic spot welding device to run towards the tail end, and enabling the automatic spot welding device to perform automatic spot welding on the vertical plate;
3. welding stations:
welding the vertical plate and the main plate by twenty-electrode welding equipment;
4. leveling and moving out of the station:
and leveling the deformation of the main plate by adopting a multi-connected roller type correcting device.
4. A production process for high-precision straight segment fabrication according to any one of claims 1-3, characterized in that: and one group of the veneer keel comprises 2-5 vertical plates.
5. A production process for high-precision straight segment fabrication according to claim 2 or 3, characterized in that: the main plate has a pair of reference edges parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159184.2A CN113798800A (en) | 2021-09-30 | 2021-09-30 | Production process for high-precision straight segmented manufacturing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159184.2A CN113798800A (en) | 2021-09-30 | 2021-09-30 | Production process for high-precision straight segmented manufacturing |
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| CN113798800A true CN113798800A (en) | 2021-12-17 |
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| CN202111159184.2A Pending CN113798800A (en) | 2021-09-30 | 2021-09-30 | Production process for high-precision straight segmented manufacturing |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2003126229A (en) * | 2003-07-03 | 2005-03-20 | Открытое Акционерное Общество Феодосийская Судостроительная Компания "Море" (Ua) | METHOD FOR ASSEMBLING A HULL OF A SHIP FROM EASY ALLOY AND A MILLING BED FOR ITS IMPLEMENTATION |
| CN204077987U (en) * | 2014-09-15 | 2015-01-07 | 江苏扬子鑫福造船有限公司 | A kind of boats and ships coverboard |
| CN107284603A (en) * | 2017-05-15 | 2017-10-24 | 沪东中华造船(集团)有限公司 | LNG liquid vault fragments are with tire manufacture, stage by stage folding method |
| CN109850060A (en) * | 2018-12-27 | 2019-06-07 | 江苏新时代造船有限公司 | The installation method of straight subsection profile in a kind of shipbuilding |
| CN110877693A (en) * | 2019-11-15 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Intelligent manufacturing method for double-layer bottom section of LNG ship |
| CN111545874A (en) * | 2020-03-30 | 2020-08-18 | 广州文冲船舶修造有限公司 | Deformation control method in aluminum alloy hull section manufacturing |
-
2021
- 2021-09-30 CN CN202111159184.2A patent/CN113798800A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2003126229A (en) * | 2003-07-03 | 2005-03-20 | Открытое Акционерное Общество Феодосийская Судостроительная Компания "Море" (Ua) | METHOD FOR ASSEMBLING A HULL OF A SHIP FROM EASY ALLOY AND A MILLING BED FOR ITS IMPLEMENTATION |
| CN204077987U (en) * | 2014-09-15 | 2015-01-07 | 江苏扬子鑫福造船有限公司 | A kind of boats and ships coverboard |
| CN107284603A (en) * | 2017-05-15 | 2017-10-24 | 沪东中华造船(集团)有限公司 | LNG liquid vault fragments are with tire manufacture, stage by stage folding method |
| CN109850060A (en) * | 2018-12-27 | 2019-06-07 | 江苏新时代造船有限公司 | The installation method of straight subsection profile in a kind of shipbuilding |
| CN110877693A (en) * | 2019-11-15 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Intelligent manufacturing method for double-layer bottom section of LNG ship |
| CN111545874A (en) * | 2020-03-30 | 2020-08-18 | 广州文冲船舶修造有限公司 | Deformation control method in aluminum alloy hull section manufacturing |
Non-Patent Citations (2)
| Title |
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| 徐凯等: "平直分段施工工艺", 《江苏船舶》 * |
| 韦方方: "《船舶精度装配工艺》", 30 September 2017, 哈尔滨工程大学出版社 * |
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Application publication date: 20211217 |