CN107962418B - A kind of tank cone bottom inner support type tire accurate lifting positioning device - Google Patents

A kind of tank cone bottom inner support type tire accurate lifting positioning device Download PDF

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Publication number
CN107962418B
CN107962418B CN201711117145.XA CN201711117145A CN107962418B CN 107962418 B CN107962418 B CN 107962418B CN 201711117145 A CN201711117145 A CN 201711117145A CN 107962418 B CN107962418 B CN 107962418B
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support type
type tire
connection ring
transition connection
milling
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CN107962418A (en
Inventor
孔德跃
毕煌圣
王志峰
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CAPITAL AEROSPACE MACHINERY Co
China Academy of Launch Vehicle Technology CALT
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CAPITAL AEROSPACE MACHINERY Co
China Academy of Launch Vehicle Technology CALT
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • 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
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • 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
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/26Auxiliary equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

The present invention relates to a kind of tanks to bore bottom inner support type tire accurate lifting positioning device, including inner support type tire, external pressure system, transition connection ring positioning device, pedestal, inner support type tire guide holder, milling locating piece, welding locating piece;Large size, thin walled curved surface member is depressed on inner support type tire by external pressure system;Transition connection ring positioning device, fixed transition connection ring;Milling locating piece is clamped between pedestal and inner support type tire in milling, keeps the relative altitude between pedestal and inner support type tire;Locating piece is welded in welding, is clamped between pedestal and inner support type tire, the relative altitude between pedestal and inner support type tire is kept.The present invention is by setting milling locating piece, when ensure that cone-shaped ring progress milling processing, the precision of cone-shaped ring lifting height, and then ensure that the accurate positioning of Grinder and cone-shaped ring.Locating piece is welded by setting, realize in theory and stitches the decline displacement that position accurately adjusts inner support type tire.

Description

A kind of tank cone bottom inner support type tire accurate lifting positioning device
Technical field
The present invention relates to a kind of tanks to bore bottom inner support type tire accurate lifting positioning device, belongs to welding technology field.
Background technique
Agitating friction weldering is a kind of Solid-phase welding method, and Fundamentals of Welding are the stirring-head using a kind of non-loss, rotation The interface to be welded for being inserted into part to be welded moves forward, and stirring, friction by stirring-head to material make material to be welded be heated to moulding Character state, in the case where stirring-head high speed rotation, extruding drive, the weld metal in mecystasis moves back forward around stirring-head Dynamic, under heat-mechanically combining effect, material diffusion connection forms solid diffusivity between fine and close metal.This method eliminates gas Root --- the melting crystal that hole generates significantly reduces the residual stress and welding deformation of longitudinal joint to reduce weld defect, It is particularly suitable for aerospace field aluminium alloy siding welding forming, it has also become the following hair of carrier rocket store-vessel bottom welding procedure Exhibition trend.
When aluminium alloy taper store-vessel bottom circumferential weld Friction Stir Welding, fork ring and cone-shaped ring are installed respectively first solid It is more smart due to passing through maching dimension geometric tolerance on welding tooling pedestal and inner support type tire, before fork ring installation is fixed Really, and cone-shaped ring by melon valve longitudinal joint welding and lifting transhipment after a degree of deformation, therefore cone-shaped ring and fork occurs Before shape ring girth welding, bottom must there are certain surplus, when circumferential weld erection welding first have to surplus with milling after again It carries out with fork ring and stitches and weld.But there is no corresponding positioning device, Wu Fabao during with milling for existing tooling Demonstrate,prove milling precision.
Cone-shaped ring bore about 3350mm, wall thickness about 6mm, aluminum alloy material, integral rigidity is small, is easy to happen deformation, Therefore it must assure that its shape does not deform in lifting process.
After the completion of with milling, inner support type tire needs to drive cone-shaped ring entire lowering, accurately docks with fork ring realization, Need to guarantee the precision of decline displacement in docking operation.Therefore the accurate of cone-shaped ring bottom margin requires cone-shaped ring to pacify with milling Dress is fixed on after welding tooling inner support type tire, and inner support type tire allows for driving annulus accurately rise and fall together, position It is stringent to move control accuracy requirement, is protected with true surplus and matches milling precision, realizes that accurate and seam provides size for subsequent annulus and fork ring Morpheme guarantees.
The device for how designing a kind of accurate control inner support type tire lifting displacement, meets the circumferential weld of fork ring and cone-shaped ring Welding requirements is this field technical problem urgently to be resolved.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of tank cone bottom inner support type tire precision lift is fixed Position device, solve the component girth welding of large scale curved surface thin wall during milling bottom margin and with weld seam and and it is accurate calmly Position fixation problem.
The object of the invention is achieved by following technical solution:
A kind of large size, thin walled curved surface member is provided and transition connection ring processes lifting-positioning device, including inner support type tire, External pressure system, transition connection ring positioning device, pedestal, inner support type tire guide holder, milling locating piece weld locating piece;
The outer mold surface of the inner support type tire matches with the inner mold face of large size, thin walled curved surface member;On can be under driving Lower movement;
The external pressure system is used to large size, thin walled curved surface member being depressed into inner support type tire;
Transition connection ring positioning device, is fixed on the base, for fixing transition connection ring;
Milling locating piece can move radially under driving, in milling, be clamped between pedestal and inner support type tire, keep Relative altitude between pedestal and inner support type tire;
Welding locating piece can move radially under driving, in welding, be clamped between pedestal and inner support type tire, keep Relative altitude between pedestal and inner support type tire.
Preferably, further include inner support type tire guide holder, be fixed on the base, the guiding axis of inner hole and inner support type tire bottom Form shaft hole matching.
Preferably, transition connection ring positioning device includes the transition connection ring inner tube of a tyre, compression ring;The transition connection ring inner tube of a tyre Outer mold surface matched with the interior profile forms of transition connection ring;Compression ring is used to for transition connection ring being fixed to transition and connect The outer surface of the ring inner tube of a tyre.
Preferably, the milling locating piece is multiple, circumferentially uniformly distributed along pedestal.
Preferably, welding locating piece includes fixed skewback and mobile skewback, is that thickness is identical both for trapezoid cross section Trapezoid block, inclined-plane docking.
Preferably, the gradient on fixed skewback and mobile skewback inclined-plane is 1:10.
Preferably, the welding locating piece is multiple, circumferentially uniformly distributed along pedestal.
It preferably, further include lifting cylinder, for driving inner support type tire to move up and down.
It provides and a kind of the large size, thin walled curved surface member and transition connection ring processing lifting-positioning device is utilized to carry out The method of girth welding processing, includes the following steps:
(1) transition connection ring is fixed on the base by transition connection ring positioning device, inner support type tire guide holder is consolidated It is scheduled on pedestal;
(2) large size, thin walled curved surface member is mounted on to the outer mold surface of inner support type tire, in the guiding axis insertion of inner support type tire In support type tire guide holder, after leveling large size, thin walled curved surface member, large size, thin walled curved surface member is compacted to interior by external pressure system On support type tire;
(3) driving inner support type tire moves up, and is more than milling locating piece upper surface, and driving milling locating piece extends radially out, Between pedestal and inner support type tire, driving inner support type tire decline, inner support type tire is fallen on milling locating piece upper surface, completes milling Cut prelocalization;
(4) Grinder is with the surplus for milling large size, thin walled curved surface member;
(5) driving inner support type tire runs up certain altitude, and milling locating piece drives milling locating piece radially withdrawn;
(6) it drives mobile skewback to move radially to predetermined position, drives the decline of inner support type tire, inner support type tire falls within mobile oblique The upper surface of block;Mobile skewback is driven to move radially, until large size, thin walled curved surface member circumferential weld is with milling face and transition connection ring Gap between interface meets the technique requirement welded and stitched;
(7) welder welds large size, thin walled curved surface member and the circumferential weld of transition connection ring.
Preferably, further include that step (8) unclamp external pressure system, unclamp compression ring, remove welded large size, thin walled Curved surface member and transition connection ring.
The invention has the following advantages over the prior art:
(1) present invention is by setting milling locating piece, when ensure that cone-shaped ring progress milling processing, on cone-shaped ring The precision of rise, and then ensure that the accurate positioning of Grinder and cone-shaped ring.
(2) present invention realizes in theory by setting welding locating piece and stitches the decline that position accurately adjusts inner support type tire Displacement.
(3) present invention guarantees that skew does not occur for inner support type tire in lifting process by setting shaft hole matching.
(4) inner support type tire of the invention is casting, stronger, complete of the inner mold face of external surface and cone-shaped ring of rigidity Match, cone-shaped ring is pressed on inner support type tire by external pressure system, ensure that cone-shaped ring does not deform in process.
(5) present invention can be welded using with the bottom of all kinds of tanks, guarantee welding precision and welding quality.Simultaneously for The processing of large scale curved surface thin wall component has reference, and outer diameter is used in 2-10m, component of the wall thickness in 4-10mm.
Detailed description of the invention
Fig. 1 is schematic diagram before taper bottom of the present invention is welded;
Fig. 2 is that tank of the present invention bores bottom inner support type tire accurate lifting positioning device structural schematic diagram;
Fig. 3 is milling locating block device working state figure;
Fig. 4 is welding locating block device working state figure.
Specific embodiment
Before aluminium alloy taper store-vessel bottom fork ring and the erection welding of cone-shaped ring circumferential weld as shown in Figure 1.According to many years product Tired Friction Stir Welding engineering experience, when welding 8mm plate thickness aluminium alloy siding, two pieces of sidings must not simultaneously surpass with gap Cross 0.3mm and be just able to satisfy Friction Stir Welding weld seam acceptance(check) requirement, and siding weld seam and and gap it is smaller, welding quality It is higher.Due to the quadratic surface that conical bottom inner mold face is equation control, the surplus milling of cone-shaped ring lower part will control very smart Really, i.e., the circumferential weld surplus milling height in Fig. 1 will control very accurate, in order to guarantee subsequent welding quality, be strict with cone Guarantee with theoretical level control errors within 0.2mm after shape circumferential weld surplus milling, the type tire of this invention rises positioning device Inner support type tire can be well solved and rise Bit andits control problem.
In conjunction with Fig. 2, it includes inner support type tire 1, external pressure system 2, fork-shaped that tank, which bores bottom inner support type tire accurate lifting positioning device, Ring positioning device 5, pedestal 6, inner support type tire guide holder 7, lifting cylinder 8, milling locating piece 9, milling locating piece drive cylinder 10, Locating piece 11 is welded, locating piece drive cylinder 12 is welded.
The outer mold surface of the inner support type tire 1 and the inner mold face of cone-shaped ring 3 match, and surface equation is consistent, cone-shaped ring 3 Bottom surface 5-10mm of the theoretical cutting line apart from inner support type tire 1, the milling balance of cone-shaped ring 3 is vacantly in inner support type tire 1 It is external.
The external pressure system 2 is used to cone-shaped ring being depressed into inner support type tire, and keeps cone-shaped ring 3 and inner support type tire 1 Position is relatively fixed, until whole process terminates.
Fork ring positioning device 5 is fixed on pedestal 6, for fixing the position of fork ring 4.Fork ring positioning device 5 is wrapped Include fork ring inner tube of a tyre 5-1, compression ring 5-2.The outer mold surface of the fork ring inner tube of a tyre 5-1 is matched with the interior profile forms of fork ring 4; Compression ring 5-2 is used to be fixed fork ring 4 to the outer surface of fork ring inner tube of a tyre 5-1, guarantees fork ring 4 relative to pedestal Position is completely fixed.
Inner support type tire guide holder 7 is fixed on pedestal 6, and the guiding axis of inner hole and 1 bottom of inner support type tire, which is formed, accurately leads To shaft hole matching, it is ensured that the axial skew that do not occur in inner support type tire lifting process.
Lifting cylinder 8 is for driving inner support type tire 1, external pressure system 2, cone-shaped ring 3 integrally to move up and down.
Milling locating piece 9 is clamped between pedestal 6 and inner support type tire 1 in milling, guarantee pedestal 6 and inner support type tire 1 it Between relative altitude it is consistent with the Grinder height that technique requires, referring to Fig. 3.Milling locating piece 9 is rectangular block, along pedestal 6 It is circumferential to be evenly distributed with several.
Milling locating piece drive cylinder 10 is used to control the radial position of milling locating piece 9.
Locating piece 11 is welded, in welding, is clamped between pedestal 6 and inner support type tire 1, guarantees pedestal 6 and inner support type tire 1 Between relative altitude it is consistent with the welder height that technique requires.It welds locating piece 11 and is circumferentially evenly distributed with several along pedestal 6, It is interspersed with milling locating piece 9.
Referring to fig. 4, welding locating piece 11 includes fixed skewback 11-1 and mobile skewback 11-2, both for trapezoid cross section, The identical trapezoid block of thickness, fixed skewback 11-1 and mobile skewback 11-2, form rectangular block, and the two inclined-plane docks, gradient 1: 10, that is, it moves skewback 11-2 and moves radially as 1mm, the mobile upper surface skewback 11-2 lifting is 0.1mm.Mobile skewback 11-2 can It moves on inclined-plane along fixed skewback 11-1.Cause to weld the whole micro variation of height generation of locating piece 11 in moving process, into And the height between adjustment base 6 and inner support type tire 1, adjust circumferential weld gap size between cone-shaped ring 3 and fork ring 4.Until Gap meets welding process requirement.
Welding locating piece drive cylinder 12 is for driving moving radially for mobile skewback 11-2.
Girth welding process is as follows between cone-shaped ring 3 and fork ring 4 of the present invention:
(1) fork ring 4 is fixed on pedestal 6 by fork ring positioning device 5, inner support type tire guide holder 7 is fixed on On pedestal 6;Milling locating piece drive cylinder 10 controls milling locating piece 9 and returns to zero position, the welding control weldering of locating piece drive cylinder 12 It connects locating piece 11 and returns to zero position, lifting cylinder 8 returns to zero position.
(2) cone-shaped ring 3 is mounted on to the outer mold surface of inner support type tire 1, the guiding axis insertion inner support type tire of inner support type tire 1 is led Into seat 7, after leveling cone-shaped ring 3, cone-shaped ring 3 is compacted on inner support type tire 1 by external pressure system 2, is linked together the two;
(3) lifting cylinder 8 drives inner support type tire 1 that cone-shaped ring 3 and external pressure system 2 is driven to move up, fixed more than milling Position 9 upper surface certain altitude of block, milling locating piece drive cylinder 10 drive milling locating piece 9 extend radially out, in pedestal 6 with it is interior Between support type tire 1, lifting cylinder 8 drives inner support type tire 1 to decline, and inner support type tire 1 is fallen on 9 upper surface of milling locating piece, completes Milling prelocalization, referring to Fig. 3;
(4) surplus of the Grinder with milling cone-shaped ring 3;
(5) lifting cylinder 8 drives inner support type tire 1 to run up certain altitude, the driving milling of milling locating piece drive cylinder 10 It is radially withdrawn to zero-bit to cut locating piece 9;
(6) welding locating piece drive cylinder 12 is for driving mobile skewback 11-2 to move radially to predetermined position, lifting oil Cylinder 8 drives inner support type tire 1 to decline, and inner support type tire 1 falls within the upper surface of mobile skewback 11-2, and 3 circumferential weld of cone-shaped ring is with milling at this time It welds locating piece drive cylinder 12 close to welding process requirement value and is moved for driving in gap between 4 interface of face and fork ring Dynamic skewback 11-2 is moved radially, and realizes fine tuning of 3 circumferential weld of cone-shaped ring with the gap between 4 interface of milling face and fork ring, directly To the technique requirement welded and stitched is met, referring to fig. 4.
(7) welder carries out 360 degree of continuous welding to the circumferential weld of cone-shaped ring 3 and fork ring 4.
(8) external pressure system 2 is unclamped, compression ring 5-2 is unclamped, removes welded tank cone bottom cone-shaped ring 3 and fork-shaped Ring 4.
In one embodiment, 1 bottom surface of inner support type tire be precision-machined surface, 1 bottom of inner support type tire finish guiding axis with The guiding of elevating movement is realized in the finishing pilot hole cooperation being mounted on the base on guide holder 7.Lifting cylinder 8 and milling position Block assembly 9 is along 8 groups of pedestal circumference uniform distribution.Inner support type tire 1 and cone-shaped ring 3 are jacked up 90mm by lifting cylinder 8, and milling locating piece drives Dynamic oil cylinder 10 receives the movement of lifting cylinder 8 in place after signal, and driving milling locating piece 9 extend out to control position, controls position When referring to that 1 bottom polished surface of inner support type tire is fallen on milling locating piece 9 on polished surface, inner support type tire 1 rises theoretical level For 80mm.Then lifting cylinder 8 drives inner support type tire 1 to fall 10mm after rise, and type tire bottom polished surface falls within finishing on milling locating piece On work face, at this moment type tire theory lifting heights are 80mm, since polished surface is by plane on 8 groups of uniformly distributed milling locating pieces 9 Whole milling completes the process, and precision is higher, and at this moment Grinder can complete the milling processing of 3 lower part surplus of cone-shaped ring.
The accurate machine adduction location and installation of fork ring 4 is on tooling base 6, it is believed that 4 upper surface weld seam of fork ring is in theory Position.After the completion of 3 lower part surplus of cone-shaped ring accurately matches milling, at this moment the driving tire 1 of lifting cylinder 8 rises overally 10mm, milling Overall radial pumpback under the action of milling locating piece drive cylinder 10 of locating piece 9, inner support type tire 1 is under lifting cylinder driving 8 Continue entire lowering, fall on welding locating piece 11 on polished surface, welding locating piece is designed as the structure of inclined-plane docking, leads to Cross the fine adjustment that inclined-plane Principles of Regulation carry out inner support type tire 1 and the decline displacement of cone-shaped ring 3.The adjusting of fine adjustment voussoir is former Reason are as follows: fine adjustment lower wedge portion slope is 1:10, and displacement sensor, hydraulic cylinder column are installed in welding locating piece oil cylinder tail portion Plug moves radially 1mm, and after ramp effect, fine adjustment voussoir integral elevating 0.1mm in this way can be by the practical decline of inner support type tire For Bit andits control within 0.1mm, degree of regulation fully meets the accurate stirring weldering welding requirements of cone-shaped ring and fork ring.Due to Voussoir will finely tune up and down with plunger link position, in order to ensure voussoir drive cylinder smoothly stretches out contraction, innovative design pendulum The regulative mode of axle type oil cylinder and spherical rotary pair cooperation, prevents cylinder plunger not dead.
This innovation and creation solves bores in Φ 3350mm Aluminum alloys tank cone base ring seam assembly stir friction welding process Shape annulus milling bottom margin and with fork-shaped girth joint and and accurate positioning fixation problem.With the accurate fixed of this project invention Position method realizes fork ring and cone-shaped ring and gap is less than the error requirements of 0.2mm, realizes cone base ring seam automation Milling weldering is integrally machined, and bottom produced all meets type design requirement.
It will be appreciated by those skilled in the art that carrying out circular seam welding for large scale curved surface thin wall component and transition connection ring The operation connect, lifting-positioning device of the invention are applicable.No matter its inner mold face is the types such as tapered surface, hemisphere face, circular conical surface Face, inner support type tire can guarantee to stablize support, processed by the inner mold face matched design with large size, thin walled curved surface member Deformation occurs in journey.Transition connection ring positioning device of the invention can also be according to the progress of different transition connection ring outer mold surfaces With design, realizes to stablize and fix.
The above, optimal specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto, In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.

Claims (10)

1. a kind of large size, thin walled curved surface member and transition connection ring process lifting-positioning device, which is characterized in that including inner support Type tire (1), external pressure system (2), transition connection ring positioning device, pedestal (6), inner support type tire guide holder (7), milling locating piece (9), locating piece (11) are welded;
The outer mold surface of the inner support type tire (1) and the inner mold face of large size, thin walled curved surface member (3) match;It can be under driving It moves up and down;
The external pressure system (2) is used to large size, thin walled curved surface member (3) being depressed into inner support type tire (1);
Transition connection ring positioning device is fixed on pedestal (6), for fixing transition connection ring (4);
Milling locating piece (9) can move radially under driving, in milling, be clamped in pedestal (6) and inner support type tire (1) it Between, keep the relative altitude between pedestal (6) and inner support type tire (1);
Welding locating piece (11) can move radially under driving, in welding, be clamped in pedestal (6) and inner support type tire (1) it Between, keep the relative altitude between pedestal (6) and inner support type tire (1).
2. large size, thin walled curved surface member as described in claim 1 and transition connection ring process lifting-positioning device, feature It is, further includes inner support type tire guide holder (7), be fixed on pedestal (6), the guiding axis of inner hole and inner support type tire (1) bottom Form shaft hole matching.
3. large size, thin walled curved surface member as claimed in claim 1 or 2 and transition connection ring process lifting-positioning device, special Sign is that transition connection ring positioning device includes the transition connection ring inner tube of a tyre, compression ring;The outer mold surface of the transition connection ring inner tube of a tyre It is matched with the interior profile forms of transition connection ring;Compression ring is for being fixed transition connection ring (4) to transition connection ring The outer surface of tire.
4. large size, thin walled curved surface member as claimed in claim 1 or 2 and transition connection ring process lifting-positioning device, special Sign is, the milling locating piece (9) be it is multiple, it is circumferentially uniformly distributed along pedestal (6).
5. large size, thin walled curved surface member as claimed in claim 1 or 2 and transition connection ring process lifting-positioning device, special Sign is that welding locating piece (11) includes fixed skewback (11-1) and movement skewback (11-2), both for trapezoid cross section, for thickness Spend identical trapezoid block, inclined-plane docking.
6. large size, thin walled curved surface member as claimed in claim 5 and transition connection ring process lifting-positioning device, feature It is, the gradient on fixed skewback (11-1) and mobile inclined-plane skewback (11-2) is 1:10.
7. large size, thin walled curved surface member as claimed in claim 5 and transition connection ring process lifting-positioning device, feature Be, the welding locating piece (11) be it is multiple, it is circumferentially uniformly distributed along pedestal (6).
8. large size, thin walled curved surface member as claimed in claim 1 or 2 and transition connection ring process lifting-positioning device, special Sign is, further includes lifting cylinder (8), for driving inner support type tire (1) to move up and down.
9. a kind of large size, thin walled curved surface member using described in claim 5 and transition connection ring process lifting-positioning device into The method of row girth welding processing, which comprises the steps of:
(1) transition connection ring (4) is fixed on pedestal (6) by transition connection ring positioning device, by inner support type tire guide holder (7) it is fixed on pedestal (6);
(2) large size, thin walled curved surface member is mounted on to the outer mold surface of inner support type tire (1), the guiding axis insertion of inner support type tire (1) In inner support type tire guide holder (7), after leveling large size, thin walled curved surface member (3), external pressure system (2) is by large size, thin walled curved surface structure Part (3) is compacted on inner support type tire (1);
(3) driving inner support type tire (1) moves up, and is more than milling locating piece (9) upper surface, and driving milling locating piece (9) is radial It stretches out, between pedestal (6) and inner support type tire (1), driving inner support type tire (1) decline, inner support type tire (1) falls within milling positioning On block (9) upper surface, milling prelocalization is completed;
(4) Grinder is with the surplus for milling large size, thin walled curved surface member (3);
(5) driving inner support type tire (1) runs up certain altitude, and milling locating piece drives milling locating piece (9) radially withdrawn;
(6) it drives mobile skewback (11-2) to move radially to predetermined position, drives inner support type tire (1) decline, inner support type tire (1) is fallen In the upper surface of mobile skewback (11-2);Mobile skewback (11-2) is driven to move radially, until large size, thin walled curved surface member (3) Circumferential weld meets the technique requirement welded and stitched with the gap between milling face and transition connection ring (4) interface;
(7) welder welds large size, thin walled curved surface member (3) and the circumferential weld of transition connection ring (4).
10. carrying out the method for girth welding processing as claimed in claim 9, which is characterized in that further include outside step (8) are unclamped Pressure system (2) unclamps compression ring, removes welded large size, thin walled curved surface member (3) and transition connection ring (4).
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CN106624335B (en) * 2016-10-19 2019-04-09 首都航天机械公司 The centering butt junction location support device of vertical mixing friction welding tank general assembly circumferential weld
CN106624549B (en) * 2016-12-14 2018-06-08 上海交通大学 Thin-walled cylindrical member rotary vertical assembles device

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