CN106624335B - Centering butt positioning support device for vertical friction stir welding tank assembly ring seam - Google Patents

Centering butt positioning support device for vertical friction stir welding tank assembly ring seam Download PDF

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Publication number
CN106624335B
CN106624335B CN201610912864.XA CN201610912864A CN106624335B CN 106624335 B CN106624335 B CN 106624335B CN 201610912864 A CN201610912864 A CN 201610912864A CN 106624335 B CN106624335 B CN 106624335B
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China
Prior art keywords
fixedly mounted
support
mandrel
supporting block
internal supporting
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CN201610912864.XA
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CN106624335A (en
Inventor
郝云飞
周庆
褚晓宾
魏瑞刚
马建波
罗军
白景彬
李超
许春芳
刘娟
郭俐
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China Academy of Launch Vehicle Technology CALT
Capital Aerospace Machinery Co Ltd
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China Academy of Launch Vehicle Technology CALT
Capital Aerospace Machinery Co Ltd
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    • 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
    • B23K20/122Non-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 using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245Non-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 using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • B23K20/126Workpiece support, i.e. backing or clamping

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The centering butt junction location support device of vertical mixing friction welding tank general assembly circumferential weld, is related to aerospace product machining technology equipment field;Including displacement base, pedestal, ring seat, inner support Tensioning structure, cylinder section outer hoop component, fork-shaped outer hoop component, supporting plate, adjustment screw, mandrel, support sleeve, clamping cap and contact roller;Pedestal is fixedly mounted on the upper surface of displacement base;Adjustment screw is circumferentially provided with along pedestal top upper surface;Ring seat is fixedly mounted in external body structure inner horizontal;Inner support Tensioning structure is fixedly mounted in ring seat;External box of microvave structure outer wall is equipped with cylinder section outer hoop component and fork-shaped outer hoop component;Mandrel is circumferentially fixedly mounted on base center vertically, and the top of mandrel passes through clamping cap;Support sleeve is wrapped in the outer wall of mandrel;Contact roller is fixedly mounted on the top of mandrel;The welding for realizing FCL, improves welding efficiency, it is ensured that the high-precision of assembly reduces manufacturing cost, improves quality of space product.

Description

The centering butt junction location support device of vertical mixing friction welding tank general assembly circumferential weld
Technical field
The present invention relates to a kind of aerospace product machining technology equipment field, especially a kind of vertical mixing friction welding tank The centering butt junction location support device of general assembly circumferential weld.
Background technique
Carrier rocket tank diameter is big, and material thickness is thin, and the rigidity of structure is low.Tank is mainly by forward and backward brevicone, forward and backward bottom, Intermediate cylinder section Combination Welding forms, and the structural material of product is aluminium alloy.
When product final assemble welds, using vertical assembly method, tank can be rotated along its own axis, make Use friction stir welding method.
When the welding of the big case body, since welding box body area is relatively thin, fusion length is longer, and structure size is big.Case The influence for the factors such as the ability of the poor rigidity of body, itself resistance to deformation is low, and assembly difficulty is larger, substantially increases welding difficulty, It needs that corresponding measure is taken to be solved.
The device is mainly used for tank general assembly girth welding, can be carried out in the inside that tank is soldered region using a kind of The inner support sturdy welded piece that rises is incorporated in the positioning device for compressing welded piece on the outside of tank welding region using outer hoop, is welded Preceding assembly guarantees the size tolerance requirements and form tolerance requirement of welding, and providing enough support stiffness reduces welding deformation.
China mostly uses greatly melt welding method in tank welding, uses high-strength aluminum alloy material in view of tank material, Melting welding can bring many detrimental effects, if strength of joint coefficient is low, by carrying out big thickness compensation in design, virtually reduce Tank loading ratio;Furthermore the welding defect and residual stress generated in melting welding causes hidden danger to the reliability of tank.
The technology of China's Friction Stir Welding at present is mainly used in the life of the products such as plate docking, the connection of non-tight structural member It is also relatively fewer for the application of large size, thin-walled, cylindrical space curved welding seam in production.In order to guarantee tank general assembly circumferential weld Friction Stir Welding quality, it is necessary to be repaired from raw material, technological equipment, Control Welding Process, inspection after welding and welding defect Etc. links strict control, select reasonable welding condition, it is ensured that space product finally meets design requirement.
Agitating friction weldering belongs to compared with precision welding, metal and welding wire is not added in welding process, therefore to assemble welding essence Spend it is more demanding, as far as possible realization gapless assembly, maximum workpiece gap cannot be greater than 0.2mm (have relationship with thickness, but generally want It asks and is less than 0.3mm).When Friction Stir Welding starts, stirring-head needs penetrate docking workpiece joint, will cause interface gap It further increases, when interface gap is larger, is easy to produce the critical defects such as hole, surface ditch dug with a plow, therefore weld to agitating friction The control in welded piece interface gap is a very important content.
It is domestic still to can be used for playing in centering docking when tank general assembly circumferential weld uses Friction Stir Welding without one kind at present The technological equipment of outer hoop pressuring action is supportted, therefore is badly in need of developing a kind of for guaranteeing that tank general assembly circumferential weld fit-up gap can satisfy The device that Friction Stir Welding requires.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, vertical mixing friction welding tank general assembly ring is provided The centering butt junction location support device of seam, realizes the welding of FCL, improves welding efficiency, it is ensured that the high-precision of assembly, drop Low manufacturing cost improves quality of space product, improves the working environment of staff.
Above-mentioned purpose of the invention is achieved by following technical solution:
A kind of centering butt junction location support device of vertical mixing friction welding tank general assembly circumferential weld, including displacement base, Pedestal, ring seat, inner support Tensioning structure, cylinder section outer hoop component, fork-shaped outer hoop component, supporting plate, adjustment screw, mandrel, support sleeve, pressure Tight lid and contact roller;Wherein, the positioner seat is located at the bottom end of butt junction location support device;Pedestal is fixedly mounted on positioner The upper surface of seat;It is circumferentially provided with adjustment screw along pedestal top upper surface, supporting plate is fixedly mounted on the inside of adjustment screw;Branch External box of microvave structure is fixedly installed between plate;Ring seat is fixedly mounted in external body structure inner horizontal;Inner support Tensioning structure It is fixedly mounted in ring seat;External box of microvave structure outer wall corresponds to the position of inner support Tensioning structure, is circumferentially equipped with cylinder section outer hoop group Part and fork-shaped outer hoop component;Clamping cap is fixedly mounted on the top of external box of microvave structure;Mandrel is circumferentially fixedly mounted on machine vertically Seat center, and the top of mandrel passes through clamping cap;Support sleeve is wrapped in the outer wall of mandrel;Contact roller is fixedly mounted on mandrel Top.
It is described in a kind of above-mentioned vertical mixing friction welding tank general assembly circumferential weld to middle butt junction location support device Inner support Tensioning structure includes connecting support, support arm, adjusting screw support, internal supporting block group and circumferential support structure;Wherein, cyclic annular branch Support structure is fixedly mounted on the center of ring seat;Support arm is coaxially fixed on the outer wall of circumferential support structure;Connecting support is solid Dingan County is mounted in the upper surface of circumferential support structure and support arm junction;Adjusting screw support is fixedly mounted on one end of support arm;It is interior Bracer group is fixedly mounted on the outer end of adjusting screw support, and internal supporting block group is fixedly connected with external box of microvave inner wall.
It is described interior in a kind of above-mentioned vertical mixing friction welding tank general assembly circumferential weld to middle butt junction location support device Cushion block is provided between bracer group and adjusting screw support.
It is described interior in a kind of above-mentioned vertical mixing friction welding tank general assembly circumferential weld to middle butt junction location support device Bracer group is cyclic structure, and internal supporting block group includes multiple internal supporting blocks, and circumferentially uniform close is distributed in internal supporting block to the internal supporting block In the cyclic structure of group.
It is described interior in a kind of above-mentioned vertical mixing friction welding tank general assembly circumferential weld to middle butt junction location support device Bracer includes ring flat-plate, the first gusset, the second gusset and transverse slat;Wherein, ring flat-plate is the outer wall of internal supporting block;First gusset is hollow knot Structure, and the first gusset is fixedly mounted on the inner wall of ring flat-plate;It is hollow position that second gusset, which is mounted on the first gusset,;Transverse slat level is solid Dingan County is mounted in the middle part of the second gusset.
It is described in a kind of above-mentioned vertical mixing friction welding tank general assembly circumferential weld to middle butt junction location support device Adjustment screw is fixedly mounted on the upper surface of pedestal vertically;The supporting plate is vertically fixedly mounted on the inner surface of adjustment screw.
The invention has the following advantages over the prior art:
(1) present invention is mainly used for before the girth welding of space product tank, inner support and external pressure are docked in welded part centering Tightly, height is required for assembly precision, is bordering on the Friction Stir Welding of gapless assembly;
(2) present invention employs curved support cushion block, the welding for once realizing two circumferential welds is positioned, reduces in weld seam and answers Power and post welding distortion amount, prevent mixing needle from penetrating welded part, improve welding efficiency;
(3) structure of the invention is designed using dismountable structure, and new in structure, mechanism is ingenious in design, and welding finishes Afterwards, internal support can be taken apart, realizes the welding of FCL;
(4) present invention has circularity regulating power, can preferably realize the combination circle and mandrel of internal lip block Concentricity is adjusted, and the perimeter that can be realized internal supporting block combination circle is adjusted, it is ensured that the high-precision of assembly;
(5) rigging position of welded part is turned up by addition support sleeve by the present invention, can be realized on entire tank Four girth weldings have certain general applicability, and reduce manufacturing cost;
(6) product welded using the present invention has joint performance high compared with melting welding, does not generate splashing and flue dust, can Repeat the productive prospecting of the green non-pollution of repair welding.The Successful utilization of the product is conducive to improve quality of space product, changes The working environment of kind staff, has important engineering application value.
Detailed description of the invention
Fig. 1 is tank general assembly circumferential weld Friction stir welding equipment configuration general diagram of the present invention;
Fig. 2 is that inner support of the present invention rises structure diagram;
Fig. 3 is internal supporting block group schematic diagram of the present invention;
Fig. 4 is internal supporting block schematic diagram of the present invention.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments:
When the present apparatus is to realize certain model tank cabinet general assembly friction welding (FW), guarantees assembly precision, make its fit-up gap And fissure of displacement amount is respectively less than the nearly gapless assembly of 0.2mm,
It is as shown in Figure 1 tank general assembly circumferential weld Friction stir welding equipment configuration general diagram, as seen from the figure, Yi Zhongli The centering butt junction location support device of formula Friction Stir Welding tank general assembly circumferential weld, including it is displacement base 1, pedestal 2, ring seat 3, interior Support Tensioning structure 11, cylinder section outer hoop component 7, fork-shaped outer hoop component 8, supporting plate 9, adjustment screw 10, mandrel 12, support sleeve 13, pressure Tight lid 14 and contact roller 15;Wherein, the displacement base 1 is located at the bottom end of butt junction location support device;Pedestal 2 is fixedly mounted on Conjugate the upper surface of base 1;It is circumferentially provided with adjustment screw 10 along 2 top upper surface of pedestal, supporting plate 9 is fixedly mounted on adjustment spiral shell The inside of bar 10;Adjustment screw 10 is fixedly mounted on the upper surface of pedestal 2 vertically;The supporting plate 9 is vertically fixedly mounted on adjustment The inner surface of screw rod 10, and by gravity, fit in support arm 9 on the side disc of ring seat 3;It is fixedly mounted between supporting plate 9 There is external box of microvave structure;Ring seat 3 is fixedly mounted in external body structure inner horizontal;Inner support Tensioning structure 11 is fixedly mounted on ring On seat 3;External box of microvave structure outer wall corresponds to the position of inner support Tensioning structure 11, is circumferentially equipped with cylinder section outer hoop component 7 and fork-shaped Outer hoop component 8;Clamping cap 14 is fixedly mounted on the top of external box of microvave structure;Mandrel 12 is circumferential to be fixedly mounted on base 1 vertically Center, and the top of mandrel 12 passes through clamping cap 14;Support sleeve 13 is wrapped in the outer wall of mandrel 12;The fixed peace of contact roller 15 Mounted in the top of mandrel 12.
Inner support is illustrated in figure 2 to rise structure diagram, as seen from the figure, inner support Tensioning structure 11 include connecting support 4, support arm 5, Adjusting screw support 6, internal supporting block group 16 and circumferential support structure 17;Wherein, circumferential support structure 17 is fixedly mounted on ring seat 3 Center;Support arm 5 is coaxially fixed on the outer wall of circumferential support structure 17;Connecting support 4 is fixedly mounted on circumferential support knot The upper surface of 5 junction of structure 17 and support arm;Adjusting screw support 6 is fixedly mounted on one end of support arm 5;The fixed peace of internal supporting block group 16 Mounted in the outer end of adjusting screw support 6, and internal supporting block group 16 is fixedly connected with external box of microvave inner wall.
Cushion block 18 is provided between the internal supporting block group 16 and adjusting screw support 6.
It is illustrated in figure 3 internal supporting block group schematic diagram, as seen from the figure, internal supporting block group 16 is cyclic structure, and internal supporting block group 16 includes Multiple internal supporting blocks 19, circumferentially uniform close is distributed in the cyclic structure of internal supporting block group 16 internal supporting block 19.
It is illustrated in figure 4 internal supporting block schematic diagram, as seen from the figure, internal supporting block 19 includes ring flat-plate 20, the first gusset 21, the second gusset 22 and transverse slat 23;Wherein, ring flat-plate 20 is the outer wall of internal supporting block 19;First gusset 21 is hollow structure, and the first gusset 21 is fixed It is mounted on the inner wall of ring flat-plate 20;It is hollow position that second gusset 22, which is mounted on the first gusset 21,;23 level of transverse slat is fixedly mounted on The middle part of second gusset 22.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.

Claims (6)

1. a kind of centering butt junction location support device of vertical mixing friction welding tank general assembly circumferential weld, it is characterised in that: including Conjugate base (1), pedestal (2), ring seat (3), inner support Tensioning structure (11), cylinder section outer hoop component (7), fork-shaped outer hoop component (8), Supporting plate (9), adjustment screw (10), mandrel (12), support sleeve (13), clamping cap (14) and contact roller (15);Wherein, the displacement Base (1) is located at the bottom end of butt junction location support device;Pedestal (2) is fixedly mounted on the upper surface of displacement base (1);Along pedestal (2) top upper surface is circumferentially provided with adjustment screw (10), and supporting plate (9) is fixedly mounted on the inside of adjustment screw (10);Supporting plate (9) external box of microvave structure is fixedly installed between;Ring seat (3) are fixedly mounted in external body structure inner horizontal;Inner support tensioner Structure (11) is fixedly mounted on ring seat (3);External box of microvave structure outer wall corresponds to the position of inner support Tensioning structure (11), circumferential to pacify Equipped with cylinder section outer hoop component (7) and fork-shaped outer hoop component (8);Clamping cap (14) is fixedly mounted on the top of external box of microvave structure; Mandrel (12) is circumferentially fixedly mounted on displacement base (1) center vertically, and the top of mandrel (12) passes through clamping cap (14); Support sleeve (13) is wrapped in the outer wall of mandrel (12);Contact roller (15) is fixedly mounted on the top of mandrel (12).
2. a kind of centering butt junction location of vertical mixing friction welding tank general assembly circumferential weld according to claim 1 supports dress Set, it is characterised in that: the inner support Tensioning structure (11) include connecting support (4), support arm (5), adjusting screw support (6), Internal supporting block group (16) and circumferential support structure (17);Wherein, circumferential support structure (17) is fixedly mounted on the centre bit of ring seat (3) It sets;Support arm (5) is coaxially fixed on the outer wall of circumferential support structure (17);Connecting support (4) is fixedly mounted on circumferential support knot The upper surface of structure (17) and support arm (5) junction;Adjusting screw support (6) is fixedly mounted on one end of support arm (5);Internal supporting block group (16) it is fixedly mounted on the outer end of adjusting screw support (6), and internal supporting block group (16) is fixedly connected with external box of microvave inner wall.
3. a kind of centering butt junction location of vertical mixing friction welding tank general assembly circumferential weld according to claim 2 supports dress It sets, it is characterised in that: be provided with cushion block (18) between the internal supporting block group (16) and adjusting screw support (6).
4. a kind of centering butt junction location of vertical mixing friction welding tank general assembly circumferential weld according to claim 2 supports dress It sets, it is characterised in that: the internal supporting block group (16) is cyclic structure, and internal supporting block group (16) includes multiple internal supporting blocks (19), described Circumferentially uniform close is distributed in the cyclic structure of internal supporting block group (16) internal supporting block (19).
5. a kind of centering butt junction location of vertical mixing friction welding tank general assembly circumferential weld according to claim 4 supports dress It sets, it is characterised in that: the internal supporting block (19) includes ring flat-plate (20), the first gusset (21), the second gusset (22) and transverse slat (23); Wherein, ring flat-plate (20) is the outer wall of internal supporting block (19);First gusset (21) is hollow structure, and the first gusset (21) is fixedly mounted Inner wall in ring flat-plate (20);It is hollow position that second gusset (22), which is mounted on the first gusset (21),;The horizontal fixed peace of transverse slat (23) Mounted in the middle part of the second gusset (22).
6. a kind of centering butt junction location of vertical mixing friction welding tank general assembly circumferential weld according to claim 1 supports dress It sets, it is characterised in that: the adjustment screw (10) is fixedly mounted on the upper surface of pedestal (2) vertically;The supporting plate (9) is vertical It is fixedly mounted on the inner surface of adjustment screw (10).
CN201610912864.XA 2016-10-19 2016-10-19 Centering butt positioning support device for vertical friction stir welding tank assembly ring seam Active CN106624335B (en)

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CN107914078B (en) * 2017-10-19 2020-11-24 上海拓璞数控科技股份有限公司 Friction stir welding device and method for large-diameter low-rigidity fuel storage tank
CN107877173B (en) * 2017-10-19 2019-03-29 上海拓璞数控科技股份有限公司 Large-scale ellipsoid face milling and the integrated servo tooling of Friction Stir Welding
CN107962418B (en) * 2017-11-13 2019-07-12 首都航天机械公司 A precise lifting and positioning device for a tank cone-bottom inner support tire
CN111097991B (en) * 2018-10-26 2023-09-26 湖北三江航天红阳机电有限公司 Circumferential seam welding device and method
CN113210838B (en) * 2021-06-09 2022-11-29 四川航天长征装备制造有限公司 Box sealing circumferential weld repair welding method based on back-pumping friction stir welding process
CN115284200B (en) * 2022-08-15 2023-07-14 青岛寰宇乾堃航天特种设备有限公司 Tool and method for realizing assembly and welding of guide rail mounting seat of aluminum alloy cylinder
CN115609137B (en) * 2022-09-27 2023-09-15 青岛寰宇乾堃航天特种设备有限公司 Inner supporting clamp for displacement welding of circumferential seams of cylinder

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