CN104959757B - Bottom butt welding clamp and butt welding method - Google Patents
Bottom butt welding clamp and butt welding method Download PDFInfo
- Publication number
- CN104959757B CN104959757B CN201510380515.3A CN201510380515A CN104959757B CN 104959757 B CN104959757 B CN 104959757B CN 201510380515 A CN201510380515 A CN 201510380515A CN 104959757 B CN104959757 B CN 104959757B
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- melon lobe
- assembly
- butt welding
- longitudinal joint
- welding
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Classifications
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a kind of bottom longitudinal joint butt welding clamp, a kind of bottom circumferential weld butt welding clamp and a kind of welding method of bottom butt welding clamp, the present invention is in the bottom welding process of storage tank type III pressure vessel, need first to carry out longitudinal seam welding to melon lobe, after cutting surplus, carry out girth welding with flange again, thus obtaining the product of high intensity, in the present invention, melon lobe can be compressed by bottom longitudinal joint butt welding clamp, ensure the welding quality of longitudinal joint between melon lobe, and the surrounding edge on melon lobe top can be compressed by bottom circumferential weld butt welding clamp, ensure the welding quality of circumferential weld and between flange, in whole welding process, pressing plate is coordinated to compress manhole flange again, can be simple, the efficient bottom to storage tank type III pressure vessel is welded.
Description
Technical field
The present invention relates to a kind of butt welding clamp, more particularly, to a kind of bottom butt welding clamp and butt welding method.
Background technology
Bottom is the important composition part of storage tank type III pressure vessel, typically by one piece casting, forging and stamping, spinning and can divide
The mode molding such as lobe welding.It is limited by the factors such as former is rare, complex process, cost control, generally using a point lobe welding
Mode produces.When producing on a large scale, and due to traditional manual welding mode of production high labor intensive, and production efficiency is not high, no
Method adapts to high density, high intensity production task needs, and domestic manufacturer carries out related automatic butt welding technical study work in recent years one after another
Make.
Content of the invention
The purpose of the present invention is that offer one kind solves the above problems, and can reduce productive labor intensity, improve and produce
The high bottom butt welding clamp of efficiency, welding precision.
To achieve these goals, the technical solution used in the present invention is such：
A kind of bottom longitudinal joint butt welding clamp, including the fetal membrane mating with by weldering melon lobe, described fetal membrane is by main body and main body bottom
The flange in portion is constituted, and described flange is provided with several flanging assembly and several energy that can be pressed on melon lobe bottom shirt rim in main body
By melon lobe positioning positioning component, be additionally provided with four longitudinal joints outside main body and hold down assembly, described longitudinal joint hold down assembly elongated,
Longitudinally disposed along body outer wall, top is detachably connected with body top, and bottom is detachably connected with flange, and longitudinal joint holds down assembly
It is provided with the longitudinal screwed hole of two rows, described screw thread in the hole is provided with fastening bolt.
As preferred：Described flanging assembly is Z-shaped flanging part, and 16 altogether, Z-shaped flanging part includes flanging body, is arranged on
Screwed hole on flanging body, pass through the fastening bolt of screwed hole, described fastening bolt is towards body interior center.
A kind of bottom circumferential weld butt welding clamp, including the fetal membrane mating with by weldering melon lobe, described fetal membrane is by main body and main body bottom
The flange in portion is constituted, and described flange is provided with several flanging assembly and several energy that can be pressed on melon lobe bottom shirt rim in main body
By the positioning component of melon lobe positioning, it is additionally provided with a ring pressure assembly above main body, described ring pressure assembly includes an annular backing plate, described
Backing plate is horizontally set at the surrounding edge at the corresponding melon lobe top of body outer wall, is provided with several dowels, on backing plate between backing plate and shirt rim
It is provided with several screwed holes, screw thread in the hole is provided with fastening bolt.
As preferred：Described flanging assembly is Z-shaped flanging part, and 16 altogether, Z-shaped flanging part includes flanging body, is arranged on
Screwed hole on flanging body, pass through the fastening bolt of screwed hole, described fastening bolt is towards body interior center.
A kind of welding method of bottom butt welding clamp, comprises the following steps：
（1）Fetal membrane is connected to change press, melon lobe correspondence is installed on fetal membrane；
（2）Bottom longitudinal joint butt welding clamp is installed：By positioning component, melon lobe is navigated on mould tire, with flanging assembly pressure
Tightly, then longitudinal joint is installed holds down assembly, using longitudinal joint hold down assembly on two row's fastening bolts, melon lobe longitudinal joint both sides position is pressed
Tightly, carry out longitudinal seam welding afterwards；
（3）After the completion of longitudinal seam welding, remove longitudinal joint and hold down assembly, retain positioning component and flanging assembly；
（4）Prepare boxing, according to the size of welded manhole flange circumferential weld, utilize center line positioning disk in mould tire top portion
On centre bore positioning, draw bottom melon lobe assembly circumferential weld line of cut and simultaneously excise upper end surplus；
（5）Top loads the manhole flange of coupling；
（6）Bottom circumferential weld butt welding clamp is installed：Annular backing plate is horizontally set on enclosing of the corresponding melon lobe top of body outer wall
At side, using the fastening bolt on backing plate, melon lobe top surrounding edge is compressed, meanwhile, mould tire top arranges pressing plate, will using pressing plate
Manhole flange compresses, and carries out girth welding.
Compared with prior art, it is an advantage of the current invention that：In the bottom welding process of storage tank type III pressure vessel, it is right to need
Melon lobe first carries out longitudinal seam welding, after cutting surplus, then carries out girth welding with flange, thus obtaining the product of high intensity, this
In bright, bottom longitudinal joint butt welding clamp can by melon lobe compression it is ensured that between melon lobe longitudinal joint welding quality, and bottom circumferential weld welding folder
Tool the surrounding edge on melon lobe top can be compressed it is ensured that and between flange circumferential weld welding quality, in whole welding process, then coordinate pressure
Manhole flange is compressed by plate, can simply, efficiently to the bottom of storage tank type III pressure vessel weld.
Brief description
Fig. 1 is bottom longitudinal joint butt welding clamp schematic diagram；
Fig. 2 is the A partial enlarged drawing of Fig. 1
Fig. 3 is bottom circumferential weld butt welding clamp schematic diagram.
In figure：1st, shirt rim；2nd, melon lobe；3rd, flanging assembly；4th, positioning component；5th, longitudinal joint holds down assembly；6th, fastening bolt；7、
Backing plate；8th, dowel；9th, pressing plate；10th, center line positioning disk；11st, flange.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1：Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of bottom longitudinal joint butt welding clamp, including the tire mating with by weldering melon lobe 2
Film, described fetal membrane is made up of the flange of main body and bottom part body, and described flange is provided with several can press melon lobe 2 bottom shirt rim 1
Tight flanging assembly 3 in main body and several positioning component 4 that can position melon lobe 2, are additionally provided with four longitudinal joint pressures outside main body
Tight assembly 5, described longitudinal joint holds down assembly 5 elongated, and longitudinally disposed along body outer wall, top is detachably connected with body top
Connect, bottom is detachably connected with flange, longitudinal joint holds down assembly and 5 is provided with the longitudinal screwed hole of two rows, and described screw thread in the hole is provided with
Fastening bolt 6.Described flanging assembly 3 is Z-shaped flanging part, and 16 altogether, Z-shaped flanging part includes flanging body, is arranged on flanging body
On screwed hole, pass through screwed hole fastening bolt 6, described fastening bolt 6 is towards body interior center.
A kind of bottom circumferential weld butt welding clamp, including the fetal membrane mating with by weldering melon lobe 2, described fetal membrane is by main body and main body bottom
The flange in portion is constituted, and described flange is provided with several flanging assembly 3 sums that can be pressed on melon lobe 2 bottom shirt rim 1 in main body
The individual positioning component 4 that can position melon lobe 2, is additionally provided with a ring pressure assembly above main body, described ring pressure assembly includes an air ring
Plate 7, described backing plate 7 is horizontally set at the surrounding edge at corresponding melon lobe 2 top of body outer wall, is provided with several companies between backing plate 7 and shirt rim 1
Connect muscle 8, backing plate 7 is provided with several screwed holes, screw thread in the hole is provided with fastening bolt 6.Described flanging assembly 3 is Z-shaped flanging part, always
Totally 16, Z-shaped flanging part includes flanging body, the screwed hole being arranged on flanging body, the fastening bolt 6 through screwed hole, described
Fastening bolt 6 is towards body interior center.
A kind of welding method of bottom butt welding clamp, comprises the following steps：
（1）Fetal membrane is connected to change press, melon lobe 2 correspondence is installed on fetal membrane；
（2）Bottom longitudinal joint butt welding clamp is installed：By positioning component 4, melon lobe 2 is navigated on mould tire, with flanging assembly 3
Compression, then install longitudinal joint and hold down assembly 5, the two row's fastening bolts 6 being held down assembly using longitudinal joint on 5, by melon lobe 2 longitudinal joint two edge
Position compression, carries out longitudinal seam welding afterwards；
（3）After the completion of longitudinal seam welding, remove longitudinal joint and hold down assembly 5, retain positioning component 4 and flanging assembly 3；
（4）Prepare boxing, according to the size of welded manhole flange 11 circumferential weld, utilize center line positioning in mould tire top portion
Centre bore positioning on disk 10, draws bottom melon lobe 2 assembly circumferential weld line of cut and excises upper end surplus；
（5）Top loads the manhole flange 11 of coupling；
（6）Bottom circumferential weld butt welding clamp is installed：Annular backing plate 7 is horizontally set on corresponding melon lobe 2 top of body outer wall
At surrounding edge, using the fastening bolt 6 on backing plate 7 by melon lobe 2 top surrounding edge compression, meanwhile, mould tire top arranges pressing plate 9, utilizes
Manhole flange 11 is compressed by pressing plate 9, carries out girth welding.
Wherein, line positioning disk is provided with positioning centre bore, can draw the cutting of melon lobe 2 assembly circumferential weld using compasses-type scriber
Line.Line positioning disk is positioned using boss and is spirally connected it is not necessary to dismantle with loose tool；And the installation of pressing plate 9 is, pressing plate 9 one side pressure
On manhole flange 11, band arc one end is pressed on loose tool, and the bolt tightening centre can supported flange 11.
In the bottom welding process of storage tank type III pressure vessel, need melon lobe 2 is first carried out longitudinal seam welding, after cutting surplus,
Carry out girth welding with flange 11 again, thus obtaining the product of high intensity, during use, using bottom longitudinal joint butt welding clamp by melon lobe
2 compressions, it is ensured that the welding quality of 2 longitudinal joints of melon lobe, recycle mould tire top portion to utilize center line positioning disk 10 to remove mould tire top
Portion's surplus, then bottom circumferential weld butt welding clamp the surrounding edge on melon lobe 2 top is compressed it is ensured that and between flange 11 circumferential weld welding quality,
In whole welding process, then coordinate pressing plate 9 to compress manhole flange 11, can simply, efficiently to storage tank type III pressure vessel
Bottom is welded.
In addition, the present invention adopts modularized design, the part of bottom longitudinal joint butt welding clamp and bottom circumferential weld butt welding clamp exists
It is identical in a lot of structures, completely can be general, so welded condition conversion is convenient, simple to operate, solve new tank and produce
The available problem of product welding no fixture, meets production needs.
Claims (3)
1. a kind of bottom longitudinal joint, circumferential weld butt welding clamp, including the fetal membrane mating with by weldering melon lobe, described fetal membrane is by main body and main body
The flange of bottom constitute it is characterised in that：Described flange is provided with and several melon lobe bottom shirt rim can be pressed on the pressure in main body
Side assembly and several positioning component that can position melon lobe, are additionally provided with four longitudinal joints and hold down assembly outside main body, described longitudinal joint pressure
Tight assembly is elongated, and longitudinally disposed along body outer wall, top is detachably connected with body top, and bottom is detachably connected with flange
Connect, longitudinal joint holds down assembly and is provided with the longitudinal screwed hole of two rows, and described screw thread in the hole is provided with fastening bolt；
It is additionally provided with a ring pressure assembly, described ring pressure assembly includes an annular backing plate, and described backing plate is horizontally set on master above main body
External wall corresponds at the surrounding edge at melon lobe top, is provided with several dowels, backing plate is provided with several screwed holes, spiral shell between backing plate and shirt rim
It is provided with fastening bolt in pit.
2. bottom longitudinal joint according to claim 1, circumferential weld butt welding clamp it is characterised in that：Described flanging assembly is Z-shaped pressure
Edge pieces, 16 altogether, Z-shaped flanging part includes flanging body, the screwed hole being arranged on flanging body, the fastening spiral shell through screwed hole
Bolt, described fastening bolt is towards body interior center.
3. a kind of welding method of bottom butt welding clamp it is characterised in that：Comprise the following steps：
（1）Fetal membrane is connected to change press, melon lobe correspondence is installed on fetal membrane；
（2）Bottom longitudinal joint butt welding clamp is installed：By positioning component, melon lobe is navigated on mould tire, compressed with flanging assembly, then
Install longitudinal joint hold down assembly, using longitudinal joint hold down assembly on two row's fastening bolts, by melon lobe longitudinal joint both sides position compress, afterwards
Carry out longitudinal seam welding；
（3）After the completion of longitudinal seam welding, remove longitudinal joint and hold down assembly, retain positioning component and flanging assembly；
（4）Prepare boxing, according to the size of welded manhole flange circumferential weld, utilize on center line positioning disk in mould tire top portion
Centre bore positions, and draws bottom melon lobe assembly circumferential weld line of cut and excises upper end surplus；
（5）Top loads the manhole flange of coupling；
（6）Bottom circumferential weld butt welding clamp is installed：Annular backing plate is horizontally set at the surrounding edge at the corresponding melon lobe top of body outer wall,
Using the fastening bolt on backing plate, melon lobe top surrounding edge is compressed, meanwhile, mould tire top arranges pressing plate, using pressing plate by manhole method
Blue compression, carries out girth welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380515.3A CN104959757B (en) | 2015-07-02 | 2015-07-02 | Bottom butt welding clamp and butt welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380515.3A CN104959757B (en) | 2015-07-02 | 2015-07-02 | Bottom butt welding clamp and butt welding method |
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| CN104959757A CN104959757A (en) | 2015-10-07 |
| CN104959757B true CN104959757B (en) | 2017-03-01 |
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| CN201510380515.3A Active CN104959757B (en) | 2015-07-02 | 2015-07-02 | Bottom butt welding clamp and butt welding method |
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| CN105127656B (en) * | 2015-10-14 | 2017-08-18 | 江苏北人机器人***股份有限公司 | Positioning fixture and store-vessel bottom circular seam welding device |
| CN106624275B (en) * | 2016-10-20 | 2018-12-21 | 四川明日宇航工业有限责任公司 | A kind of annular metal plate case weld method |
| CN107175448B (en) * | 2017-05-18 | 2019-09-27 | 佛山市顺德区赛诺斯厨卫用品有限公司 | A kind of automatic processing system of kitchen basin |
| CN107931825B (en) * | 2017-10-19 | 2020-05-15 | 上海拓璞数控科技股份有限公司 | Friction stir welding splicing tool for large ellipsoidal workpiece |
| CN107876964B (en) * | 2017-12-07 | 2021-01-26 | 四川航天长征装备制造有限公司 | Space curve weld joint milling and welding integrated connection method based on friction stir welding |
| CN108480730A (en) * | 2018-05-30 | 2018-09-04 | 中南大学 | The milling clamping tooling of large complicated carved component |
| CN108838508B (en) * | 2018-06-29 | 2020-12-18 | 首都航天机械公司 | Friction stir welding device and method for annular longitudinal seam at bottom of large-diameter carrier rocket tank |
| CN114193191A (en) * | 2021-12-28 | 2022-03-18 | 南京宝色股份公司 | Milling and fixing device and machining method for longitudinal seam groove of titanium alloy thick-wall spherical end socket melon petal |
| CN114952258A (en) * | 2022-07-01 | 2022-08-30 | 南京宝色股份公司 | High-precision hemispherical melon petal assembling equipment and method |
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| JPS6039468B2 (en) * | 1981-08-20 | 1985-09-06 | 信建工業株式会社 | Bottom plate welding method |
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| CN202780226U (en) * | 2012-06-25 | 2013-03-13 | 湖北三江航天红阳机电有限公司 | Aluminium alloy fuel tank friction stir welding fixing device |
| CN203254077U (en) * | 2013-04-12 | 2013-10-30 | 中国航天科技集团公司长征机械厂 | Integrated automatic welding device for longitudinal seams and circular seam at bottom of storage tank |
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| CN104625522A (en) * | 2015-02-06 | 2015-05-20 | 中国运载火箭技术研究院 | 5M-level storage box bottom longitudinal seam welding device |
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| Publication number | Publication date |
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| CN104959757A (en) | 2015-10-07 |
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Address after: 610199 Sichuan Chengdu economic and Technological Development Zone (Longquanyi District) 189 Patentee after: Sichuan spaceflight Long March Equipment Manufacturing Co., Ltd. Address before: 610199 No. 189, road, Longquan Town, Longquanyi District, Sichuan. Patentee before: Changzheng Machinery Factory, China Astronautics Science and Technology Group Co |
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