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CN106216924A - A kind of low head nozzle inner wall fixing tool during built-up welding on positioner - Google Patents

A kind of low head nozzle inner wall fixing tool during built-up welding on positioner Download PDF

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Publication number
CN106216924A
CN106216924A CN201610835757.1A CN201610835757A CN106216924A CN 106216924 A CN106216924 A CN 106216924A CN 201610835757 A CN201610835757 A CN 201610835757A CN 106216924 A CN106216924 A CN 106216924A
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CN
China
Prior art keywords
low head
welding
positioner
fixing tool
table top
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Granted
Application number
CN201610835757.1A
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Chinese (zh)
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CN106216924B (en
Inventor
彭焘
奚金妹
袁亚兰
宣文
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Shanghai Electric Nuclear Power Equipment Co Ltd
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Shanghai Electric Nuclear Power Equipment Co Ltd
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B23K37/0426Fixtures for other work

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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)

Abstract

The invention discloses a kind of low head nozzle inner wall fixing tool on positioner during built-up welding, it is applicable to the low head product that the nozzle inner wall built-up welding centre of gyration is parallel with low head axis, radially it is provided with multiple table top on described positioner and connects rebound, this fixing tool is arranged on table top and connects between rebound and low head product and be fixed on table top connection rebound, this fixing tool holds the outer ring of low head product tightly, it is ensured that low head product is integrally attached on positioner.Its advantage is: ensure that stress makes low head integrated connection become succinct reliable.

Description

A kind of low head nozzle inner wall fixing tool during built-up welding on positioner
Technical field
The present invention relates to a kind of low head nozzle inner wall fixing tool on positioner during built-up welding.
Background technology
Nuclear power evaporator in the fabrication process, when positioner carries out inner wall overlaying as the adapter of vaporizer low head can not or The equipment lacked, sometimes for meeting the peak use rate of equipment of the same race, needs accomplish to fix the location of all size low head Function.But meanwhile, problem occurs the most therewith, owing to the joint pipe structure of different evaporators low head is quite different, comparison diagram 1,2, in Fig. 1, during inner wall overlaying, the centre of gyration 1 ' is parallel with low head axis, under in Fig. 2, during inner wall overlaying, the centre of gyration 1 ' points to The end socket centre of sphere, in figure 2 ' for adapter, due to positioner work top size the most substantially stationary (generally diameter 6m ~ 8m), then when When the frock utilizing form of the same race carries out assisting fixing, equipment just cannot meet use requirement.
Positioner major function makees gyration for fixing product securely around adapter axis, and welding machine of working good is made to join Move and carry out inner wall overlaying, to reach reliable built-up welding precision.In conjunction with on-the-spot actual, as it is shown on figure 3, summary is to conventional low head Whole position is arranged and uses function: the axis of rotation 1 ' of low head adapter 2 ' is coaxial with the axis of rotation of positioner 3 ' table top Degree, carries out being mechanically connected guarantee, then welding machine crosshead frame by auxiliary moulds such as middle triangular support base 4 ', rebounds 5 ' Be adjusted to appropriate location and whole positioner 3 ' and make linkage operation, meet welding requirements, in figure the head 6 ' of welding machine crosshead with Positioner 3 ' linkage heap welded pipe 2 ' inner surface.
Obviously, above-mentioned station layout is to meet the mode of product structure in Fig. 2, and takes Fig. 1 product structure equally Means if then may not be suitable for.Owing in Fig. 1 product, adapter centrage i.e. axis of rotation 1 ' is eccentric relative to end socket axis Distance bigger (about 1/3 is accounted for for maximum overall dimensions), and it is in parallel direction, so propping up by original connection triangle The mode inapplicable of seat, and due to eccentric reason, overall frock is inclined with workpiece center of gravity on positioner 3 ' table top Put the most serious (product has been located substantially near device end).Machinery is carried out as indiscriminately imitated the bearing adding auxiliary in the middle of original mode Connect, the most more increased the weight of the generation of problem.So, overall used frock fixing to low head location must be compare lighter Just, and can guarantee that intensity, accordingly, it would be desirable to reformulate compact conformation and safe and reliable fixed solution.
Summary of the invention
It is an object of the invention to provide a kind of low head nozzle inner wall fixing tool on positioner during built-up welding, make With welding lug, welding transition plate, low head product is welded to connect each other again by the machinery between table top rebound Connect, the most effectively position, be fixed on equipment, thus meet to fusing head connection tube inwall on positioner during built-up welding quick, Positioning requirements.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of low head nozzle inner wall fixing tool during built-up welding on positioner, it is adaptable to the nozzle inner wall built-up welding centre of gyration The low head product parallel with low head axis, described positioner is radially provided with multiple table top and connects rebound, its feature It is:
This fixing tool is arranged on table top and connects between rebound and low head product and be fixed on table top connection rebound, should Fixing tool holds the outer ring of low head product tightly, it is ensured that low head product is integrally attached on positioner.
Above-mentioned low head nozzle inner wall fixing tool during built-up welding on positioner, wherein, described fixing tool Comprise:
Multiple welding transition plates, the multiple positioner table tops described in corresponding connection connect rebound;
The multiple welding lugs arranged along low head product circumferencial direction, the multiple welderings described in the connection of the plurality of welding lug correspondence Take over cab apron.
Above-mentioned low head nozzle inner wall fixing tool during built-up welding on positioner, wherein:
Each welding lug and corresponding welding transition plate pass through to be welded to connect, and with low head product circumferential surface correspondence position It is welded to connect, it is ensured that bonding strength;
Each welding transition plate connects rebound by being mechanically connected with corresponding positioner table top.
Above-mentioned low head nozzle inner wall fixing tool during built-up welding on positioner, wherein:
On described welding lug, the contact site with corresponding low head product circumferencial direction is bent, it is ensured that laminating low head produces The spherical shape of product, can effectively bear again low head product and depart from the stress of positioner table top the most outward.
Above-mentioned low head nozzle inner wall fixing tool during built-up welding on positioner, wherein:
Described welding transition plate is a plate body structure, and its surface configuration has multiple mechanical connection hole.
The present invention compared with prior art has the advantage that
1, the connection of integral solder form is fixed, and effectively and directly ensures bonding strength.
2, utilizing the fewest union piece structure, effective part shape ensures that stress makes low head integrated connection side Case becomes succinct reliable.
Accompanying drawing explanation
The low head structural representation that when Fig. 1 is nozzle inner wall built-up welding in prior art, the centre of gyration is parallel with low head axis Figure;
When Fig. 2 is nozzle inner wall built-up welding in prior art, the centre of gyration points to the low head structural representation of the low head centre of sphere;
Fig. 3 is the platform position arrangement schematic diagram of conventional low head product in prior art;
Fig. 4 is embodiments of the invention overall structure scheme of installations;
Fig. 5 is the axonometric chart of the welding lug in the present invention;
Fig. 6 is the axonometric chart of the welding transition plate in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 4;A kind of low head nozzle inner wall fixing tool during built-up welding on positioner, it is adaptable to adapter 11 The low head product 1 that the inner wall overlaying centre of gyration 111 is parallel with low head axis, described positioner 2 is radially provided with multiple Table top connects rebound 21;This fixing tool is arranged on table top and connects between rebound 21 and low head product 1 and be fixed on platform Face connects on rebound 21, and this fixing tool holds the outer ring of low head product 1 tightly, it is ensured that low head product 1 is integrally attached to become On the machine 2 of position.
Described fixing tool comprises: multiple welding transition plates 3, and multiple positioners 2 table top described in corresponding connection connects Rebound 21;The multiple welding lugs 4 arranged along low head product 1 circumferencial direction, the corresponding connection of the plurality of welding lug 4 is described Multiple welding transition plates 3.
Each welding lug 4 passes through to be welded to connect with corresponding welding transition plate 3, and with low head product 1 circumferential surface Correspondence position is welded to connect, it is ensured that bonding strength;Each welding transition plate 3 connects rebound 21 with corresponding positioner 2 table top By being mechanically connected.
As shown in Figure 5,6, it is surface sphere form at usual low head product 1 outer ring, with right on described welding lug 4 The contact site 42 answering low head product 1 circumferencial direction is bent, it is ensured that the spherical shape of laminating low head product 1, can have again Effect is born low head product 1 and is departed from the stress of positioner 2 table top the most outward;Described welding transition plate 3 is a plate body structure, Its surface configuration has multiple mechanical connection hole 31, and connector connects rebound 21 through mechanical connection hole 31 and table top makes welding Rebound 3 is fixed;It is connected connecting portion 41 and the welding transition of rebound 21 welding with positioner 2 table top on described welding lug 4 Plate 3 surface matching.
In the present embodiment, as shown in Figure 4, according to actual low head product 1 position at place on positioner 2, on-demand cloth Put table top and connect the rebound 21 radial position on positioner 2 table top, figure arranges 6 pieces of table tops altogether and connects rebound 21 (main consider that convenient welding lug 4 finally fully can weld with welding transition plate 3, welding lug quantity 12 pieces and more than).
In sum, the fixing tool of the present invention is welded and fixed shape by welding lug bending form, and uses weldering Connect lug, welding transition plate product low head to be welded to connect each other again by the machinery between table top rebound even Connect, it is proposed that a kind of effective location, the integrated connection scheme being fixed on equipment, and utilize the fewest union piece knot Structure, effective part shape ensure that stress makes low head integrated connection scheme become succinct reliable.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read foregoing, for the present invention's Multiple amendment and replacement all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (5)

1. low head nozzle inner wall fixing tool during built-up welding on positioner, it is adaptable to adapter (11) inner wall overlaying returns Turning the low head product (1) that center (111) is parallel with low head axis, described positioner is radially provided with multiple table top on (2) Connect rebound (21), it is characterised in that:
This fixing tool is arranged on table top and connects between rebound (21) and low head product (1) and be fixed on table top connection transition On plate (21), this fixing tool holds the outer ring of low head product (1) tightly, it is ensured that low head product (1) is integrally attached to positioner (2) on.
2. low head nozzle inner wall as claimed in claim 1 fixing tool during built-up welding on positioner, it is characterised in that Described fixing tool comprises:
Multiple welding transition plates (3), multiple positioners (2) table top described in corresponding connection connects rebound (21);
The multiple welding lugs (4) arranged along low head product (1) circumferencial direction, the plurality of welding lug (4) is corresponding connects institute The multiple welding transition plates (3) stated.
3. low head nozzle inner wall as claimed in claim 2 fixing tool during built-up welding on positioner, it is characterised in that:
Each welding lug (4) with corresponding welding transition plate (3) pass through be welded to connect, and with low head product (1) circumference table Face correspondence position is welded to connect, it is ensured that bonding strength;
Each welding transition plate (3) connects rebound (21) by being mechanically connected with corresponding positioner (2) table top.
4. low head nozzle inner wall as claimed in claim 2 fixing tool during built-up welding on positioner, it is characterised in that:
Upper and corresponding low head product (1) circumferencial direction the contact site (42) of described welding lug (4) is bent, it is ensured that patch Close the spherical shape at low head product (1) outer ring, can effectively bear again low head product (1) and axially depart from positioner outward (2) stress of table top.
5. low head nozzle inner wall as claimed in claim 4 fixing tool during built-up welding on positioner, it is characterised in that:
Described welding transition plate (3) is a plate body structure, and its surface configuration has multiple mechanical connection hole (31).
CN201610835757.1A 2016-09-20 2016-09-20 A kind of fixing tool of low head nozzle inner wall in built-up welding on positioner Active CN106216924B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188637A (en) * 2018-01-29 2018-06-22 无锡海核装备科技有限公司 Anti-deformation tool is welded in spherical surface head opening
CN108890113A (en) * 2018-08-28 2018-11-27 中国船舶重工集团公司第七二五研究所 A kind of pressure-resistant cabin hemispherical Shell and hatch part welding tooling and the method welded with it
CN111843108A (en) * 2020-06-29 2020-10-30 河北环境工程学院 Head inner wall surfacing method and head inner wall scribing device applied to same
CN112192119A (en) * 2020-09-23 2021-01-08 凯龙高科技股份有限公司 Positioning and clamping device for surface welding seat of taper pipe assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750662A (en) * 1987-02-10 1988-06-14 Larry And Associates Pipe welding alignment tool
CN201140320Y (en) * 2007-08-23 2008-10-29 上海电机学院 Large-scale rotary header weld deposit combined flexible soldering workstation based on track
CN103862215A (en) * 2014-03-26 2014-06-18 南京工程学院 Assembly welding tool device and method commonly used for large curved surface end sockets of pressure containers
CN203712319U (en) * 2014-02-08 2014-07-16 株洲开元自动焊接装备有限公司 Automatic positioning clamp for ellipsoidal head
CN104785909A (en) * 2015-04-20 2015-07-22 骏马石油装备制造有限公司 Separator head girth welding work station
CN205147698U (en) * 2015-11-13 2016-04-13 湖北力威汽车有限公司 Barrel head upset welding machine
CN206105243U (en) * 2016-09-20 2017-04-19 上海电气核电设备有限公司 Fixed frock that low head nozzle inner wall used when shifting on machine build -up welding

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750662A (en) * 1987-02-10 1988-06-14 Larry And Associates Pipe welding alignment tool
CN201140320Y (en) * 2007-08-23 2008-10-29 上海电机学院 Large-scale rotary header weld deposit combined flexible soldering workstation based on track
CN203712319U (en) * 2014-02-08 2014-07-16 株洲开元自动焊接装备有限公司 Automatic positioning clamp for ellipsoidal head
CN103862215A (en) * 2014-03-26 2014-06-18 南京工程学院 Assembly welding tool device and method commonly used for large curved surface end sockets of pressure containers
CN104785909A (en) * 2015-04-20 2015-07-22 骏马石油装备制造有限公司 Separator head girth welding work station
CN205147698U (en) * 2015-11-13 2016-04-13 湖北力威汽车有限公司 Barrel head upset welding machine
CN206105243U (en) * 2016-09-20 2017-04-19 上海电气核电设备有限公司 Fixed frock that low head nozzle inner wall used when shifting on machine build -up welding

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188637A (en) * 2018-01-29 2018-06-22 无锡海核装备科技有限公司 Anti-deformation tool is welded in spherical surface head opening
CN108188637B (en) * 2018-01-29 2024-04-02 无锡海核装备科技有限公司 Spherical head open hole welding anti-deformation tool
CN108890113A (en) * 2018-08-28 2018-11-27 中国船舶重工集团公司第七二五研究所 A kind of pressure-resistant cabin hemispherical Shell and hatch part welding tooling and the method welded with it
CN111843108A (en) * 2020-06-29 2020-10-30 河北环境工程学院 Head inner wall surfacing method and head inner wall scribing device applied to same
CN112192119A (en) * 2020-09-23 2021-01-08 凯龙高科技股份有限公司 Positioning and clamping device for surface welding seat of taper pipe assembly
CN112192119B (en) * 2020-09-23 2022-09-16 凯龙高科技股份有限公司 Positioning and clamping device for surface welding seat of taper pipe assembly

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