CN102848091B - Ship double bottom block assembly welding technology - Google Patents

Ship double bottom block assembly welding technology Download PDF

Info

Publication number
CN102848091B
CN102848091B CN201210323719.XA CN201210323719A CN102848091B CN 102848091 B CN102848091 B CN 102848091B CN 201210323719 A CN201210323719 A CN 201210323719A CN 102848091 B CN102848091 B CN 102848091B
Authority
CN
China
Prior art keywords
welding
skeleton
moulding bed
breadth
length
Prior art date
Application number
CN201210323719.XA
Other languages
Chinese (zh)
Other versions
CN102848091A (en
Inventor
张清洁
Original Assignee
福建省华海船业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 福建省华海船业有限公司 filed Critical 福建省华海船业有限公司
Priority to CN201210323719.XA priority Critical patent/CN102848091B/en
Publication of CN102848091A publication Critical patent/CN102848091A/en
Application granted granted Critical
Publication of CN102848091B publication Critical patent/CN102848091B/en

Links

Abstract

The invention discloses a ship double bottom block assembly welding technology. The ship double bottom block assembly welding technology comprises the following steps of: presetting corresponding tire holders of the double bottom, marking a seam line mark on each tire holder, and starting to assemble external plates corresponding to the seam line marks on the tire holders, and welding the external plates; marking vertical and horizontal framework mounting lines on the external plates, and mounting a middle bottom girder; assembling vertical and horizontal frameworks at corresponding positions of the vertical and horizontal framework mounting lines, welding a front pressurizing row, welding the seam between the frameworks and the seam between the frameworks and the external plates, then, detaching the pressurizing row, correcting deformation, and fitting out block by block; hoisting inner bottom plates on the vertical and horizontal frameworks, marking block assembly locating lines on the inner bottom plates, and welding flying rings block by block; hoisting and turning over the blocks, placing the blocks on a platform, and welding the seams between the vertical and horizontal frameworks and the inner base plates, and the sealing run of the external bottom plates. With the adoption of the technology provided by the invention, the ship double bottom assembly efficiency is high, and the welding quality is good.

Description

A kind of boats and ships double bottom block erection welding technique

Technical field

The present invention relates to ship structural component and install and welding procedure field, relate in particular to a kind of boats and ships double bottom block erection welding technique.

Background technology

Ship structural component is the main support member of boats and ships, has thousands of parts to form.The assembling of member is one of main task of shipbuilding with welding, and the workload of hull assembling and welding, accounts for the more than 75% of hull construction amount of work, and wherein welding accounts for again over half.Therefore welding is the key work of shipbuilding, it is the build guality of direct relation boats and ships not only, and is related to shipbuilding efficiency.Modern age, the evolution of shipbuilding technology was the process being strided forward to mechanization, automation by manual operations.From the fifties, hull construction has replaced riveted joint with welding, makes hull construction be improved to block assembly mode by the mode fragmentary in bulk of using over a long period of time, has greatly improved shipbuilding efficiency.Welding method develops into Lincoln weld (seeing submerged-arc welding), semiautomatic welding, electroslag welding, gas shielded arc welding from full manual welding.From the mid-1960s, there are again the new technologies such as one side welding with back formation, gravity type arc welding, automatic fillet welding and vertical welding and automatic transverse welding.Welding equipment and welding material also have corresponding development.Due to Ship Structure more complicated, in the position that is difficult to implement automatic welding and semiautomatic welding, still need to adopt manual welding.In conjunction with the development of solder technology, from the sixties, in sub-assembly of hull structure and block assembly, start to adopt respectively T-shaped material welding equipment streamline and flat section welding equipment streamline.T-shaped material is the basic building block that forms flat section skeleton.Flat section occupies suitable proportion in Ship Structure, and for example, on large-scale bulk carrier and oil carrier, flat section can account for the more than 50% of hull gross weight.Flat section welding equipment streamline comprises various special-purpose erection welding equipment, it utilizes conveying device to carry out continuously the operations such as charging, splice joint and welding equipment skeleton, can improve significantly the mechanization degree of block assembly, become the technological transformation of Modern Shipbuilding factory main contents it

In the subject matter existing aspect shipbuilding quality, it is exactly the defect of weldquality.Therefore, Weld Quality Inspection is particularly important, accomplishes to find early weld defect, and the quality of Welded Joints is made objective appraisal; Weld defect is limited in certain scope, and to guarantee navigation safety and human life property safety waterborne, common welding External Defect has; Weld Profiles and shape are undesirable, undercut, overlap, arc crater, surface pores, surperficial slag inclusion and weld crack etc.; Internal flaw has: pore, slag inclusion, weld crack, lack of penetration etc.In shipbuilding process, the factor that affects welding quality is a lot, as steel and welding rod quality, and groove processing and assembly precision, groove face cleaning situation and welding equipment, any one link is dealt with improperly, all can produce weld defect, affects weldquality.But main reason be also can manual control welding condition, should choose reasonable welding procedure, constantly carry out qualification of welding procedure work, the bonding strength of ship-lifting framework and hull.

Summary of the invention

The present invention, in order to solve the defect of prior art weldquality, provides the boats and ships double bottom block erection welding that a kind of malformation is little, welding quality is high technique.

In order to realize foregoing invention object, the technical solution adopted in the present invention is:

A boats and ships double bottom block erection welding technique, comprises the following steps:

1), the default corresponding moulding bed of double bottom, and on moulding bed, mark jointing line mark, start to assemble outside plate, outside plate assembles the jointing line mark on corresponding moulding bed, and outside plate is welded;

2), on outside plate, mark skeleton hookup wire in length and breadth, installation bottom center girder;

3), at skeleton hookup wire correspondence position in length and breadth, assemble skeleton in length and breadth, add pressure before welding, the seam between welded framework and between skeleton and outside plate, removes afterwards and adds pressure, corrects distortion, ssection fitting-out;

4), on skeleton, lifting inner bottom plating in length and breadth, at inner bottom plating, mark segmentation position line, welding equipment segmentation suspension ring are installed;

5), by the handling of segmentation with stand up, after standing up, be placed on platform, weld the seam between skeleton and inner bottom plating, the back welding of Outer Bottom Plating in length and breadth.

In order to improve the bonding strength of outside plate and moulding bed, the present invention further optimizes, and at outside plate described in step 1) and moulding bed, answers anchorage to be adjacent to, and its gap is less than 3mm, by draw horse and moulding bed under outside plate, positions welding.

In order to improve assembly precision and efficiency of assembling, the present invention further optimizes, and while assembling in length and breadth skeleton in step 3), first fills floor, and install to two ends simultaneously the bottom side girder left and right refilling before and after it, finally turns inner bottom plating side plate and bilge bracket.

Wherein, inner bottom plating first carries out assembledly on platform described in step 4), then be lifted in length and breadth on skeleton, and with skeleton tension, positioning welding.

Whole whole in order to improve, prevent following process problem, the present invention further optimizes, and also comprises that step 6) corrects the place of subsection deformation, marks segmented wheel profile, and the surplus outside outline line is cut.

The invention has the beneficial effects as follows, the jointing line mark assembling on corresponding moulding bed by outside plate can be realized automatic welding, adds pressure and effectively reduce malformation before welding, higher by technique boats and ships double bottom efficiency of assembling of the present invention, welding quality is better.

The specific embodiment

By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with embodiment, be explained in detail.

Ship assembly is exactly by qualified individuals of hull structure combiner, segmentation, the complete cross section of processing, until the technical process of hull.Hull assembling be divided into the pre-welding equipment of Ship Structure and and building berth welding equipment, wherein the pre-welding equipment of Ship Structure is divided into again parts welding equipment, segmentation welding equipment and always assembles welding equipment three process.The capital equipment that the pre-welding equipment of Ship Structure is used has lifting, electric welding, gas cutting and pneumatic plant, and pipeline, platform and moulding bed.Wherein platform and moulding bed are main technique equipment.

The workbench with certain level degree that platform is generally comprised of concrete pedestal and shaped steel, steel plate etc., is divided into the fixed and large class of conveyor type two.

Moulding bed is shape loose tool and the workbench of manufacturing ship hull surface segmentation and curved three dimensional unit, and it should have enough structural rigidities and intensity, and Main Function is that supporting segmentation guarantees segmentation curve form and controls its welding equipment distortion.Kind is as follows:

1. jig frame special

Jig frame special is that special-purpose certain segmentation is used, as bottom, topside, deck panel and initial and end column sectional.As: one-board moulding bed and truss-like moulding bed.

2. general jig frame

As: frame-type active tire plate moulding bed and telescopic prop formula moulding bed.

Determining of moulding bed basal plane and moulding bed offset:

1, moulding bed basal plane determines

Moulding bed basal plane is with the datum level that decides moulding bed working curved surface offset.Relativeness according to it and rib section and datum plane, is divided into following several conventionally:

1) tangent moulding bed 2) positive skew moulding bed 3) skew moulding bed 4) oblique skew moulding bed

2, moulding bed offset determines

First on frame plan, make the projection line of moulding bed basal plane, according to moulding bed, prop up intercolumniation again and obtain Zhi Zhudian on moulding bed basal plane projection line, then cross these pin deck along moulding bed basal plane projection line vertical direction, measure the distance of corresponding costal line, and deduct thickness of slab, obtain the height offset of moulding bed.

3, jig structure form determines

1) military products or required precision are high, and large civilian goods should select the one-board moulding bed of good rigidly in batches;

2) segmentation that common product, single ship are built can be selected the posture moulding bed that spreads out;

3) segmentation that molded line curvature is little can be used fulcrum type moulding bed;

4) expand the scope of application of general jig frame as far as possible.

4, moulding bed is made

1) on platform, rule

2) erect pole

3) make horizontal plane

4) amount offset

A kind of boats and ships double bottom block of the present invention erection welding technique, first preset the corresponding moulding bed of double bottom, and on moulding bed, mark jointing line mark, start to assemble outside plate, outside plate assembles the jointing line mark on corresponding moulding bed, outside plate is welded, can adopt automatic welding, whether the center line of check moulding bed is perpendicular to reference line for frame, to guarantee the accuracy of segmentation line and assembling, described outside plate and moulding bed answer anchorage to be adjacent to, and its gap is less than 3mm, by draw horse and moulding bed under outside plate, position welding; On outside plate, mark skeleton hookup wire in length and breadth, bottom center girder is installed, the line of longitudinal and transverse skeleton, the first section of division center line and reference line for frame, then draw other hookup wires; At skeleton hookup wire correspondence position in length and breadth, assemble skeleton in length and breadth, before welding, add pressure, seam between welded framework and between skeleton and outside plate, remove afterwards and add pressure, rectification distortion, ssection fitting-out, while assembling in length and breadth skeleton, first fills floor, install to two ends simultaneously the bottom side girder left and right that refills its front and back, finally turns inner bottom plating side plate and bilge bracket; On skeleton, lifting inner bottom plating in length and breadth, at inner bottom plating, mark segmentation position line is installed, this position line comprises segmentation center line, reference line for frame and horizontal check line, welding equipment segmentation suspension ring, described inner bottom plating first carries out assembled on platform, be lifted on again in length and breadth on skeleton, and with skeleton tension, positioning welding; By the handling of segmentation with stand up, after standing up, be placed on platform, weld the seam between skeleton and inner bottom plating, the back welding of Outer Bottom Plating in length and breadth; Correct in place to subsection deformation, marks segmented wheel profile, and the surplus outside outline line is cut.

Check segmentation weldquality, carry out segmental structure check, Interventions Requested comprise: baseline deformation, length dimension, width dimensions and height dimension, and the weld seam of large joint, segmentation two ends should reserve 200-300mm and not weld, to improve the flexibility of large joint; When the basal plane of segmentation and internals out of plumb, should guarantee the correctness of its relative position; The tack welding of Steel section member, should be welded in the inner side of shaped steel to weld in shaped steel outside; After the completion of segmentation welding equipment, should mark segmented wheel profile and check line, so that surplus cutting and building berth general assembly; Suspension ring should be arranged on main member infall, otherwise should do interim reinforcement, should guarantee the welding quality of suspension ring, avoid occurring suspension ring accident; For controlling hull weight, there is the segmentation of specific (special) requirements must carry out sectional-weighing; The connection of skeleton must be concordant in length and breadth, so that fitting tightly with skeleton the jointing line mark assembling on corresponding moulding bed by outside plate, plate can realize automatic welding, before welding, add pressure and effectively reduce malformation, higher by technique boats and ships double bottom efficiency of assembling of the present invention, welding quality is better.

The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (4)

1. a boats and ships double bottom block erection welding technique, is characterized in that, comprises the following steps:
1), the default corresponding moulding bed of double bottom, and on moulding bed, mark jointing line mark, start to assemble outside plate, outside plate assembles the jointing line mark on corresponding moulding bed, and outside plate is welded;
2), on outside plate, mark skeleton hookup wire in length and breadth, installation bottom center girder;
3), at skeleton hookup wire correspondence position in length and breadth, assemble skeleton in length and breadth, add pressure before welding, the seam between welded framework and between skeleton and outside plate, removes afterwards and adds pressure, corrects distortion, ssection fitting-out;
4), on skeleton, lifting inner bottom plating in length and breadth, at inner bottom plating, mark segmentation position line, welding equipment segmentation suspension ring are installed;
5), by the handling of segmentation with stand up, after standing up, be placed on platform, weld the seam between skeleton and inner bottom plating, the back welding of Outer Bottom Plating in length and breadth;
Step 1) outside plate described in and moulding bed answer anchorage to be adjacent to, and its gap is less than 3mm, by draw horse and moulding bed under outside plate, position welding.
2. boats and ships double bottom block erection welding technique according to claim 1, it is characterized in that step 3) in while assembling in length and breadth skeleton, first fill floor, install to two ends simultaneously the bottom side girder left and right that refills its front and back, finally turns inner bottom plating side plate and bilge bracket.
3. boats and ships double bottom block erection welding technique according to claim 1, is characterized in that step 4) described inner bottom plating first carries out assembledly on platform, then be lifted in length and breadth on skeleton, and with skeleton tension, positioning welding.
4. boats and ships double bottom block erection welding technique according to claim 1, is characterized in that, further comprises step 6) place of subsection deformation is corrected, mark segmented wheel profile, and the surplus outside outline line is cut.
CN201210323719.XA 2012-09-04 2012-09-04 Ship double bottom block assembly welding technology CN102848091B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210323719.XA CN102848091B (en) 2012-09-04 2012-09-04 Ship double bottom block assembly welding technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210323719.XA CN102848091B (en) 2012-09-04 2012-09-04 Ship double bottom block assembly welding technology

Publications (2)

Publication Number Publication Date
CN102848091A CN102848091A (en) 2013-01-02
CN102848091B true CN102848091B (en) 2014-10-29

Family

ID=47395282

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210323719.XA CN102848091B (en) 2012-09-04 2012-09-04 Ship double bottom block assembly welding technology

Country Status (1)

Country Link
CN (1) CN102848091B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407545A (en) * 2013-08-20 2013-11-27 南通中新钢构重工有限公司 Fabrication technique of bed-jig
CN103464911A (en) * 2013-09-10 2013-12-25 南通华铮隆钢业制造有限公司 Ship segmentation body carrying final assembly and segmentation body gathering spraying process
CN103521980B (en) * 2013-10-16 2015-12-23 易兵 In hull, group is without code assembly technique
CN103910037A (en) * 2014-04-15 2014-07-09 南通长航船舶配件有限公司 Bow area construction method for self-propelled drag suction dredger ship
CN105015703A (en) * 2014-04-15 2015-11-04 大连鸿运船舶重工工程技术有限公司 Ship bottom segment assembly technology
CN106216915A (en) * 2016-08-27 2016-12-14 中船澄西船舶修造有限公司 Turn of the bilge line style false ribs position frock

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201317453Y (en) * 2008-09-27 2009-09-30 上海江南长兴造船有限责任公司 Double-sided ribbed slab in shipbuilding
CN101987401A (en) * 2009-08-07 2011-03-23 上海外高桥造船有限公司 Segmental assembling and welding method of stem
CN102059495A (en) * 2010-11-06 2011-05-18 中国长江航运集团宜昌船厂 Bottom template for ship frame and method for processing same
CN102632344A (en) * 2011-03-29 2012-08-15 华泰(南通)船务有限公司 Welding deformation control process for ship superstructure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11333592A (en) * 1998-05-25 1999-12-07 Mitsubishi Heavy Ind Ltd Automatic welding system
JP2004223595A (en) * 2003-01-24 2004-08-12 Ishikawajima Harima Heavy Ind Co Ltd Welder installation device, and welder installation method
KR20100074809A (en) * 2008-12-24 2010-07-02 현대중공업 주식회사 Protective method to stop robot body getting broken of the movable welding robot

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201317453Y (en) * 2008-09-27 2009-09-30 上海江南长兴造船有限责任公司 Double-sided ribbed slab in shipbuilding
CN101987401A (en) * 2009-08-07 2011-03-23 上海外高桥造船有限公司 Segmental assembling and welding method of stem
CN102059495A (en) * 2010-11-06 2011-05-18 中国长江航运集团宜昌船厂 Bottom template for ship frame and method for processing same
CN102632344A (en) * 2011-03-29 2012-08-15 华泰(南通)船务有限公司 Welding deformation control process for ship superstructure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
中国机械工程学会焊接学会.底部结构.《焊接手册》.机械工业出版社,2012,第3卷(第3版),第730页. *

Also Published As

Publication number Publication date
CN102848091A (en) 2013-01-02

Similar Documents

Publication Publication Date Title
CN104060523B (en) A kind of ultra-large type bridge box beam component, jig frame special and its assemble method
CN101664847B (en) Method for producing box beam/column with steel structure
CN203401246U (en) Assembling and welding device for T section bar
CN101811553B (en) Preparation and on-board installation process of bridge of cutter suction dredger
CN101862942B (en) Production process method of pipe whip restraint steel structure of main power house of nuclear power station conventional island
CN101967886B (en) Assembly and installation methods of steel containment vessel of nuclear power station
CN203875641U (en) Jig special for locating and alignment in irregular frame geometric form processing
CN102184747B (en) Modular steel containment vessel annular hanging beam and assembling method thereof
CN105401732B (en) A kind of assemble method of nuclear power station large-sized steel construction module
CN103541474B (en) Top and bottom process makes the construction method of hyperboloid stainless steel curtain wall
CN202212716U (en) Vehicle sidewall welding device
CN103009009B (en) Welding method for ultra-large type three-section transformer oil tank
CN103934693B (en) The processing technology of box-structure post/beam shaping
CN102086000B (en) Onsite splicing and mounting method for extra-large and overweight box crane girders
CN102923252A (en) Full rotation steering oar device installation method
CN105421586B (en) A kind of profile steel concrete column at urban rail transit elevated station and preparation method thereof
CN203201562U (en) Shield tunneling machine initial counter-force frame convenient to detach, install and transport
CN103659182A (en) Production method of 360-degree spiral stair with cambered box beams
CN101804501B (en) Ground assembling and welding integral installation and construction technology for vaporization-cooling chimney
CN105252158A (en) Welding construction method for bottom plate of large storage tank
CN103321296B (en) Annular double-layer truss and manufacture method thereof
CN104101278B (en) Multi-vehicle checking-tool-sharing platform structure
CN102626841B (en) Automatic welding fixture of subway train obverse-reverse side roofs
CN102861972B (en) Welding method for vertically spliced super-thick steel plate
WO2015078186A1 (en) Rack mounting method and auxiliary adjusting apparatus for rack and pinion climbing vertical ship lift

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160606

Address after: 355000 Fujian city of Ningde province Fu'an City Gan Tang Zhen Gan line Strait tea floor No. 109

Patentee after: Century Huahai (Fujian) Shipbuilding Heavy Industry Co., Ltd.

Address before: 355009 Fujian city of Ningde province Fu'an City Gan Tang Zhen Nan Tang Bridge

Patentee before: Fujian Huahai Shipbuilding Co.,Ltd.