CN105728931A - Welding fixture for ring on bottom of carrier rocket propellent tank - Google Patents
Welding fixture for ring on bottom of carrier rocket propellent tank Download PDFInfo
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- CN105728931A CN105728931A CN201410742138.9A CN201410742138A CN105728931A CN 105728931 A CN105728931 A CN 105728931A CN 201410742138 A CN201410742138 A CN 201410742138A CN 105728931 A CN105728931 A CN 105728931A
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- carrier rocket
- tank bottom
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- welding tooling
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Abstract
A welding fixture for a ring on the bottom of a carrier rocket propellent tank comprises an installation base and multiple groups of combined clamp assemblies and is characterized in that the combined clamp assemblies are installed on the installation base and can move along the radial direction of the installation base; each combined clamp assembly comprises a back face rigid supporting component and a front face compacting component; an installation interface is disposed on the rigid supporting component; and the front face compacting component is connected to the rigid supporting component by the interface. The welding fixture provided by the invention has the advantages that the technical problems of high fixture manufacture cost in existing assembly and complex assembly processes are solved; a fixture structure is simplified; production and manufacture efficiency is increased; and a fixture utilization rate is increased.
Description
Technical field
The present invention relates to a kind of agitating friction mounted welder, specifically a kind of frock for the weldering of many specifications carrier rocket propellant tank bottom annulus agitating friction.
Background technology
Carrier rocket store-vessel bottom annulus many by 4 ~ 6 pieces of melon lobes with longitudinal joint docking mode welding forming, be one of most important Welding Structure in propellant tank, for ensureing postwelding size and welding stability, need before weldering that workpiece is carried out assembling fixing.
In the manufacturing process of tank assembly, generally adopt melting welding method, but owing to the heat input of welding process is bigger, it is easy to produce obvious post welding distortion, therefore before welding, generally use integral type assembling mode to fix whole part with restrained deformation.Existing assembling form is required for the bottom of different size, the full-scale fixing tool of design specialized.Back support is designed as the full size modular tire of laminating bottom pattern, and volume is relatively big, involves great expense；Front hold down gag adopts split type layering structure, and quantity is many, and assembly precision is low.For completing the welding of different size bottom annulus, need to for product specification supporting special tooling one by one, frock manufacturing cost is high, and when different size bottom is welded, it is necessary to by welding tooling repeated disassembled and assembled, have a strong impact on production efficiency.
The development trend of tank manufacturing process is for widely using Friction stir welding, this technique belongs to forging welding manner, and its welding process heat input is little, and post welding distortion is little with residual stress, therefore before weldering, assembling only needs butt welded seam position to be fixed, and is suitable for adopting subassembly mode.Especially for the bottom product that dimensions is different, design the same station frock of a kind of solderable different size bottom annulus, it is possible to effectively reduce frock manufacturing cost, simplify assemble flow, improve production efficiency.So far, a kind of frock form is not still had to be capable of efficiently assembling and welding of many specifications bottom annulus.
Summary of the invention
For the problem such as solve above-mentioned bottom annulus agitating friction mounted welder huge structure, frock utilization rate is low, production efficiency is low, it is an object of the invention to provide a kind of welding tool for friction stir welding, being exclusively used in the assembling of carrier rocket propellant tank bottom annulus, welding, it can realize the agitating friction weldering erection welding of plurality of specifications bottom annulus.
In order to reach foregoing invention purpose, the present invention provides a kind of frock for the welding of plurality of specifications bottom annulus, and this frock includes overlapping built-up jig more, installing pedestal, described built-up jig, a certain fixture can being selected to use according to product demand, remainder shrinks to be placed.
Described built-up jig is by back, welding position rigid support and front, welding position hold down gag assembly；Each built-up jig is only the bottom annulus welding of a kind of specification and uses, and different built-up jigs is distributed on turntable.
Described built-up jig back rigid support members adopts profile mould tire, it is characterised in that mould tire is consistent with melon lobe theoretical curve, design mode face width degree 200mm, and profile length is more than melon lobe length 150 ~ 200mm.
In described built-up jig, front pressed component is made up of monoblock type pressing plate and piano type air clamper, and pressing plate is integral type structure, it may be achieved a longitudinal joint carries out overall compression；During use, realized the welding of six longitudinal joints by the method for rotational workpieces.
Described installation pedestal is used for fixing described built-up jig, can pass through rotating of pedestal and select to use different built-up jigs；On pedestal, design has radial guidance, it may be achieved axially-movable when built-up jig shrinks.
Described built-up jig can pass through guide rail and adjust position and angle, to facilitate contraction, it is to avoid other support in using and interfere with workpiece.
Store-vessel bottom longitudinal seam welding tooling device provided by the invention, compared with existing tooling device, has reached following beneficial effect:
1) local back support be effectively reduced frock manufacture material make consumption, evident constructive simplifications, volume mass is greatly reduced, hence it is evident that reduce manufacturing cost；
2) this frock can realize the assembling of different size bottom longitudinal joint on same station, eliminates frock switching, improves manufacturing efficiency, and improve frock utilization rate；
3) this frock can realize the conversion of plurality of specifications built-up jig by draw-in and draw-off function, not only prevents the interference of workpiece and equipment, it also avoid the handling repeatedly that frock adjusts, saves time and manpower, be greatly improved welding equipment efficiency.
In conjunction with accompanying drawing, according to hereafter by the description illustrating present subject matter, other aspects of the present invention and advantage being known.
Accompanying drawing explanation
By reading the detailed description that non-limiting example is made made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent upon:
The overall structure schematic diagram that Fig. 1 (a) is frock of the present invention；
Fig. 1 (b) is built-up jig schematic diagram in the present invention；
Fig. 2 (a) is rigid support schematic diagram in back in the present invention；
Fig. 2 (b) is hold down gag schematic diagram in front in the present invention；
Fig. 3 is the frock schematic diagram under different use state;
Fig. 4 is tradition longitudinal seam welding frock schematic diagram.
In figure, 1 for installing pedestal；2 is built-up jig；3 is back rigid support members；4 is front pressed component；5 for moving radially guide rail.
In accompanying drawing, same or analogous accompanying drawing labelling represents same or analogous parts.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail with embodiment.Should be understood that following example are merely to illustrate the present invention not for limiting the scope of the present invention.
By background technology it can be seen that tank task now is diversified, processing dimension is also day by day numerous and diverse, and the longitudinal seam welding of bottom melon lobe is the Welding Structure that quantity is maximum.Reality needs to process the melon lobe longitudinal joint of sizes specification on same station, and the handling repeatedly of the various frock making of size and frock is positioned to carry the bottleneck of effect for limits product.
A kind of frock for bottom many sizes longitudinal seam welding is provided in the present invention.Described invention adopts class assimilation thinking, the tradition frock subregion a plurality of annulus longitudinal joint of welding is improved to a built-up jig and welds a plurality of longitudinal joint successively, be greatly reduced frock size, simplify design structure；Adopt monoblock type thinking simultaneously, multiple simplified built-up jigs are incorporated on same installation pedestal, it is achieved weld the purpose of sizes longitudinal joint with station with frock.
In order to solve workpiece and the interference problem of frock in the course of processing, invent and add rotation and locomotive function for split type built-up jig, it may be achieved the contraction of each built-up jig, finally achieve instructions for use.During replacement of products, only each several part supporting tool need to be adjusted in place, and revolving table position is rotate in place, can quickly realize the replacing of converted products.
Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.
In Fig. 1 (a), the built-up jig of three kinds of sizes is 120 ° and is uniformly distributed on turntable, can pass through to rotate and install pedestal and select to use three kinds of built-up jigs.
Fig. 1 (b) is the built-up jig of one of which size, is made up of the back rigid support of welding position and front hold down gag.
With reference to Fig. 1 (a) and Fig. 1 (b), adopting frock provided by the present invention can six pieces of melon lobes be welded one by one, melon lobe can pass through to translate to rotate the welding realizing each bar longitudinal joint.
The back rigid support that Fig. 2 (a) is a kind of size, adopts profile mould tire to support, designs according to the theoretical size of melon lobe workpiece, and design mode face width degree is 200mm, to provide enough area support workpiece；Size relatively melon lobe actual size in upper and lower end face increases 150 ~ 200mm, with the formula pressing plate that is fixed as one；Back support frock has angle regulation function, it is possible to realize the angular adjustment on vertical direction, when not in use, it is possible to coordinates turntable radial guidance to realize translation and shrinks, to reduce space, it is prevented that interfere.
Front, the welding position hold down gag that Fig. 2 (b) is a kind of size, i.e. integral type pressing plate schematic diagram, its size designs according to workpiece size, compresses for monoblock type, compresses for the assembling in front, welding position；Shaft shoulder diameter according to soldering set reserves welding position, it is ensured that mould tire is close to by part, and with weld main frame and part turns to join and is absent from interfering.Pressing plate entirety manufactures, and structural strength can ensure that rigging position is fixed, it is achieved a longitudinal joint carries out overall compression, can effectively reduce fit-up gap and assembling jump.
Fig. 3 is the schematic diagram under frock use state, it is illustrated that for the welding of the last item melon lobe longitudinal joint in annulus assembly.When using No. 1 built-up jig, all the other two parts built-up jigs are by angular adjustment and move radially, it is possible to avoid annulus part and No. 1 built-up jig completely.Interference does not occur in using, can by having expected the welding of six longitudinal joints.When using No. 2 built-up jigs, only pedestal need to be installed, make No. 2 built-up jig positions of stirring soldering equipment alignment, and to adjust No. 2 frock angles be normal condition, move to welding position；After No. 1 built-up jig is drawn in by position adjustment.The use procedure of No. 3 built-up jigs is by that analogy.
Relative to Fig. 4 tradition longitudinal seam welding frock, frock of the present invention adjusts process without using the hanging devices such as driving, regulates simple and easy, it is easy to realizes, and without arranging the dedicated storage position of frock, can effectively save cost, raising efficiency.
The basic use procedure of the present invention is: 1) be mounted on welding turntable by installation pedestal；2) various sizes of built-up jig is fixed on the fixing groove installing pedestal；3) position and the angle of built-up jig are adjusted according to demand, to select respective combination fixture；4) melon lobe part is assemblied on built-up jig, uses front hold down gag retaining element, after reaching required precision, proceed by welding；5), after having welded, rotate melon lobe assembly, and realize the welding of all the other longitudinal joints by step 4)；6), after annulus has all welded, built-up jig position is adjusted, in order to the welding of other specification bottom annulus assemblies.
Although the present invention is with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art are without departing from the spirit and scope of the present invention; may be by the method for the disclosure above and technology contents and technical solution of the present invention is made possible variation and amendment; therefore; every content without departing from technical solution of the present invention; according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, belong to the protection domain of technical solution of the present invention.
All of figure does not comply with requirement, gray background in the figure that invites, and each structure changes string diagram into, namely removes filling color.
Claims (7)
1. a carrier rocket propellant tank bottom annulus welding tooling, including installing pedestal and many group built-up jig assemblies, it is characterized in that the described built-up jig assembly of many groups is arranged on described installation pedestal, and can move radially along described installation pedestal, described built-up jig assembly includes back rigid support members and front pressed component, having mounting interface in the rigid support members of described back, described front pressed component passes through described mounting interface, is connected with described back rigid support members.
2. carrier rocket propellant tank bottom annulus welding tooling according to claim 1, it is characterised in that described installation pedestal is provided with moving guide rail, and described built-up jig assembly is moved radially on described installation pedestal by described moving guide rail.
3. carrier rocket propellant tank bottom annulus welding tooling according to claim 1, it is characterised in that described back rigid support members adopts profile mould tire structure.
4. carrier rocket propellant tank bottom annulus welding tooling according to claim 1, it is characterised in that described front pressed component includes monoblock type pressing plate and piano type air clamper.
5. carrier rocket propellant tank bottom annulus welding tooling according to claim 1, it is characterised in that described built-up jig assembly is uniformly distributed and is installed on described installation pedestal.
6. carrier rocket propellant tank bottom annulus welding tooling according to claim 3, it is characterised in that described profile mould tire structure is consistent with melon lobe theoretical curve, design mode face width degree 200mm, and profile length is more than melon lobe length 150 ~ 200mm.
7. carrier rocket propellant tank bottom annulus welding tooling according to claim 1, it is characterised in that described many group built-up jig assemblies are different size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742138.9A CN105728931A (en) | 2014-12-09 | 2014-12-09 | Welding fixture for ring on bottom of carrier rocket propellent tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742138.9A CN105728931A (en) | 2014-12-09 | 2014-12-09 | Welding fixture for ring on bottom of carrier rocket propellent tank |
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| CN105728931A true CN105728931A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410742138.9A Pending CN105728931A (en) | 2014-12-09 | 2014-12-09 | Welding fixture for ring on bottom of carrier rocket propellent tank |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624335A (en) * | 2016-10-19 | 2017-05-10 | 首都航天机械公司 | Centering butt joint positioning supporting device for vertical type stirring friction welding storage box assembly annular seam |
| CN106695112A (en) * | 2016-11-15 | 2017-05-24 | 首都航天机械公司 | Novel trajectory motion key pressing mechanism |
| CN107931825A (en) * | 2017-10-19 | 2018-04-20 | 上海拓璞数控科技股份有限公司 | The agitating friction weldering splicing frock of large-scale ellipsoid workpiece |
| CN108838508A (en) * | 2018-06-29 | 2018-11-20 | 首都航天机械公司 | A kind of major diameter carrier rocket bottom annulus longitudinal joint friction stir weld device and method |
| WO2020161143A1 (en) * | 2019-02-04 | 2020-08-13 | Mt Aerospace Ag | Apparatus for clamping and orienting thin-walled dome segments and use thereof |
| CN113249560A (en) * | 2021-04-06 | 2021-08-13 | 浙江蓝箭航天空间科技有限公司 | Heat treatment shape-preserving device for bottom of storage tank of carrier rocket |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624335A (en) * | 2016-10-19 | 2017-05-10 | 首都航天机械公司 | Centering butt joint positioning supporting device for vertical type stirring friction welding storage box assembly annular seam |
| CN106695112A (en) * | 2016-11-15 | 2017-05-24 | 首都航天机械公司 | Novel trajectory motion key pressing mechanism |
| CN106695112B (en) * | 2016-11-15 | 2019-02-26 | 首都航天机械公司 | A kind of novel track movement key hold-down mechanism |
| CN107931825A (en) * | 2017-10-19 | 2018-04-20 | 上海拓璞数控科技股份有限公司 | The agitating friction weldering splicing frock of large-scale ellipsoid workpiece |
| CN108838508A (en) * | 2018-06-29 | 2018-11-20 | 首都航天机械公司 | A kind of major diameter carrier rocket bottom annulus longitudinal joint friction stir weld device and method |
| WO2020161143A1 (en) * | 2019-02-04 | 2020-08-13 | Mt Aerospace Ag | Apparatus for clamping and orienting thin-walled dome segments and use thereof |
| CN113249560A (en) * | 2021-04-06 | 2021-08-13 | 浙江蓝箭航天空间科技有限公司 | Heat treatment shape-preserving device for bottom of storage tank of carrier rocket |
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Application publication date: 20160706 |
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