CN205614269U - Clamping frock is used in hollow blade welding - Google Patents
Clamping frock is used in hollow blade welding Download PDFInfo
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- CN205614269U CN205614269U CN201620461835.1U CN201620461835U CN205614269U CN 205614269 U CN205614269 U CN 205614269U CN 201620461835 U CN201620461835 U CN 201620461835U CN 205614269 U CN205614269 U CN 205614269U
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Abstract
The utility model discloses a clamping frock is used in hollow blade welding, the arc welding combination formed in hollow blade mainly carried on the back arc and blade by the blade of minute body structure, the clamping frock is including back of the body arc template and inner arc template, back of the body arc template has the working face that matches blade back of the body arc molded lines on the direction of height, the inner arc template has the working face that matches blade inner arc molded lines on the direction of height, the one end of the back of the body arc template and inner arc template articulate be in the same place, the other end is detachable locking structure. The utility model discloses in can be maximum corresponding the laminating blade, the surface of back of the body arc, and then in making the blade, back of the body arc becomes to pinpoint, reliable clamping, is favorable to ensureing reliably that welding jobs goes on smoothly, improves weld forming's qualification rate, shortens the welding jobs cycle, reduces manufacturing cost, the practicality is strong, the reliability is high.
Description
Technical field
This utility model relates to the clamping tooling of machining, specifically a kind of hollow blade welding clamping tooling.
Background technology
Hollow blade has lightweight, low cost of manufacture, the cycle feature such as flexibly, is widely applied in kinetic energy plant equipment.Shown in Figure 7, common hollow blade 22 is main to be combined by blade convexity 23 and blade concavity 25 welding of Split type structure, has limit weld seam 24 and trailing edge weld seam 26 between blade convexity 23 and blade concavity 25.The low pressure stator blade of the nuclear steam turbines such as the hollow blade of this kind of structure such as HD1160A-118114C, HD1160A-123114C.
Due to blade, the especially molding molded line of nuclear steam turbine low pressure stator blade is complicated, bending degree is big, in addition the technology of the accuracy of manufacture requires height, so that the manufacture difficulty of welding combined hollow blade is the biggest, this is mainly reflected in the blade convexity of Split type structure and the weld job of blade concavity: due in the blade to Split type structure, back of the body arc lacks the reliably clamping tooling of practicality, in causing blade, back of the body arc cannot be formed reliably, effectively, convenient, practicably accurate Set and Positioning, and then in making the blade in weld job, between back of the body arc, the residual stress of commissure is excessive and skewness, the welding deformation directly resulting in blade is big；For the low pressure hollow stationary blade of nuclear steam turbine, there is no special clamping tooling, also result in blade and give vent to anger the other bending deformation in (vapour) limit and overall torsional deformation is difficult to effectively control.
Summary of the invention
Goal of the invention of the present utility model is: for above-mentioned the deficiencies in the prior art, it is provided that a kind of easy to operate, clamping is reliable, accurate positioning, be conducive to the most reliably ensureing the hollow blade welding clamping tooling that weld job is smoothed out.
This utility model be the technical scheme is that a kind of hollow blade welding clamping tooling, and described hollow blade mainly blade convexity and blade concavity welding by Split type structure combines；Described clamping tooling includes carrying on the back arc template and inner arc template, described back of the body arc template has the work surface of coupling blade convexity molded line in the height direction, described inner arc template has the work surface of coupling blade concavity molded line in the height direction, and one end of described back of the body arc template and inner arc template is hinged, the other end is dismountable closing component structure.
Preferably, the inside of described back of the body arc template is provided with bosh, and offering several hole for water sprayings communicated respectively with bosh on the work surface of back of the body arc template, these hole for water sprayings are along the track arrangement of the work surface correspondence hollow blade weld seam of back of the body arc template；Described clamping tooling includes water tank, and the outlet of this water tank communicates with the bosh of back of the body arc template.Further, the work surface of described back of the body arc template offering a plurality of return flume, the outer end of every return flume extends at hole for water spraying, the inner extends to the lowest part of work surface.Further, the hole for water spraying on the work surface of described back of the body arc template is two rows, and they are arranged with the track of zigzag broken line.
Preferably, described clamping tooling includes base, and described base is used for installing back of the body arc template, and connecting on base has deflection machine.Further, described clamping tooling includes back of the body arc trailing edge locker, described back of the body arc trailing edge locker is mainly made up of back of the body arc trailing edge template, pressing plate and fastening screw, described back of the body arc trailing edge template has the work surface of coupling blade convexity trailing edge molded line in the height direction, described pressing plate is multiple, one end of each pressing plate is withheld in back of the body arc trailing edge template, the other end latches on base by corresponding fastening screw, and multiple pressing plates are pressed in back of the body arc trailing edge template along the short transverse interval fastener of hollow blade.Further, described back of the body arc trailing edge template is that multiple mold segment is sequentially connected and combines.
The hinged end of described inner arc template is provided with balancing weight.
Described closing component structure is screw rod closing component structure, mainly by sealed screw rod, be opened in inner arc template and/or the back of the body arc template on screw hole form.
The beneficial effects of the utility model are:
Inner arc template the most of the present utility model and back of the body arc template are with " chopper " shape combination forming, and when to the blade concavity of hollow blade and blade convexity clamping, inner arc template and back of the body arc template are able in the most corresponding laminating blade, the surface of back of the body arc, and then in making blade, back of the body arc is formed and is accurately positioned, reliable clamping, the operation of whole clamping is easily, easily, convenient, it is in clamping uses, be conducive to reliably ensureing that the weld job between the blade concavity of hollow blade and blade convexity is smoothed out, improve the qualification rate of hollow blade welding fabrication, shorten the cycle of hollow blade weld job, reduce the manufacturing cost of hollow blade, practical, reliability is high；
Weld seam on hollow blade can be formed and reliably cool by cooling system the most of the present utility model (i.e. bosh, hole for water spraying and water tank etc. in back of the body arc template), excessive and the pockety problem of residual stress of commissure in avoiding blade, between back of the body arc, reduce, even stop the welding deformation of blade, the oxide layer simultaneously controlling hollow blade back of weld produces, ensure the technology requirement of appearance of weld, further increase its practicality and reliability；
Back of the body arc trailing edge locker the most of the present utility model (vapour) limit of can giving vent to anger hollow blade forms stable, reliably auxiliary clamping, thus the bending deformation on (vapour) limit of giving vent to anger hollow blade and overall torsional deformation are formed and reliably and efficiently control, and ensure the Forming Quality of hollow blade.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further described.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the structural representation of inner arc template in Fig. 1.
Fig. 3 is the structural representation carrying on the back arc template in Fig. 1.
Fig. 4 is the structural representation carrying on the back arc trailing edge locker in Fig. 1.
Fig. 5 is the structural representation of base in Fig. 1.
Fig. 6 is the structural representation of water tank in Fig. 1.
Fig. 7 is that the structure of the hollow blade manufactured by this utility model is intended to.
Code name implication in figure: 1 inner arc template；2 back of the body arc templates；3 back of the body arc trailing edge lockers；4 bases；5 sealed screw rods；6 hangers；7 water tanks；8 standing screws；9 balancing weights；10 hinges；11,27 lightening hole；12 screw holes；13 fix seat；14 hinge axis holes；15 fixing threaded holes；16 back of the body arc trailing edge templates；17 pressing plates；18 fastening screws；19 cushion blocks；20 outlets；21 deflection machines；22 hollow blades；23 blade convexities；24 limit weld seams；25 blade concavities；26 trailing edge weld seams.
Detailed description of the invention
Shown in Figure 7, hollow blade 22 manufactured by this utility model includes blade convexity 23 and blade concavity 25, generally, blade convexity 23 and blade concavity 25 are respectively adopted ferritic stainless steel molding, and their each self-forming molded line is it suffices that the design requirement of the convex surface of hollow blade 22 and intrados.Owing to blade convexity 23 and the blade concavity 25 of hollow blade 22 are split molding structure before welding combination, so that need to carry out welding combination by blade concavity 25 and blade convexity 23, blade is formed overall with this, having limit weld seam 24 and trailing edge weld seam 26(on the hollow blade 22 of combination forming when the stator blade that hollow blade is steam turbine, " gas " should be " vapour ").
Seeing shown in Fig. 1 to Fig. 6, this utility model includes inner arc template 1, back of the body arc template 2, base 4, back of the body arc trailing edge locker 3 and water tank 7.Wherein, inner arc template 1 is the strip structure of distortion, the height of the hollow blade 22 that inner arc template 1 length correspondence is welded；The medial surface (usually bottom surface) of inner arc template 1 has the work surface (usually curved-surface shape) of blade concavity 25 molded line of coupling hollow blade 22, it should be noted that the work surface of inner arc template 1 is corresponding to the molded line of blade concavity 25 along the short transverse of hollow blade 22；For the ease of operation, inner arc template 1 is provided with lightening hole 11.In order to make inner arc template 1 can with the back of the body arc template 2 formed " chopper " formula combination install, one end of inner arc template 1 is hinged end, is provided with articulated joint, articulated joint is provided with hinge axis hole, this hinge axis hole is used for installing hinge 10, the other end of inner arc template 1 is locking-up end, is provided with closing component structure, in the present embodiment, the closing component structure in inner arc template 1 is screw hole 12.
Back of the body arc template 2 is the strip structure of distortion, the height of the hollow blade 22 that back of the body arc template 2 length correspondence is welded.The medial surface (usually end face) of back of the body arc template 2 has the work surface (usually curved-surface shape) of blade convexity 23 molded line of coupling hollow blade 22, it should be noted that the work surface of back of the body arc template 2 is corresponding to the molded line of blade convexity 23 along the short transverse of hollow blade 22.For the ease of operation, back of the body arc template 2 is provided with lightening hole 27.In order to make back of the body arc template 2 can with inner arc template 1 formed " chopper " formula combination install, one end of back of the body arc template 2 is hinged end, is provided with fixing seat 13, this fixing seat 13 is U-shaped structure, the bottom of fixing seat 13 is provided with fixing threaded hole 15, the opening of fixing seat 13 is provided with hinge axis hole 14, this hinge axis hole 14 is used for corresponding with the hinge axis hole in inner arc template 1, and then by same hinge 10 by hinged to inner arc template 1 and back of the body arc template 2；The other end of back of the body arc template 2 is locking-up end, is provided with closing component structure, and in the present embodiment, the closing component structure in back of the body arc template 2 is screw hole, and this screw hole is corresponding with the screw hole 12 in inner arc template 1.The inside of aforementioned back of the body arc template 2 is provided with bosh, and offer several hole for water sprayings communicated respectively with bosh on the work surface of back of the body arc template 2, these hole for water sprayings are along the track arrangement of work surface correspondence hollow blade 22 weld seam of back of the body arc template 2, as preferably, hole for water spraying on the work surface of back of the body arc template 2 is two rows, and they are with the track arrangement molding of zigzag broken line；In addition, a plurality of return flume (width along back of the body arc template 2 is arranged) is offered on the work surface of back of the body arc template 2, the outer end of every return flume extends to (can consider to arrange one or more water leg at hole for water spraying at hole for water spraying, by water leg, multiple hole for water sprayings are connected, then by return flume connected set tank), the inner extend to carry on the back the lowest part (i.e. lightening hole 27) of the work surface of arc template 2.
Base 4 is slab construction.Base 4 is for fixing back of the body arc template 2, it is respectively arranged at two ends with screw hole at base 4, in the present embodiment, screw hole at base 4 left end is two, corresponds to carry on the back the fixing threaded hole 15 on the fixing seat 13 in arc template 2, and the fixing seat 13 of back of the body arc template 2 is fixedly mounted on base 4 by standing screw 8；Screw hole at base 4 right-hand member is one, corresponding to the screw hole in inner arc template 1 and back of the body arc template 2, the world is fixed on base 4 screw hole herein to the sealed screw rod 5 being installed in inner arc template 1 and back of the body arc template 2.Center at base 4 is provided with backwater hole, flows through the backwater hole entrance water tank 7 on base 4 of the cooling water at back of the body arc template 2 lightening hole 27 and is circulated.The side of base 4 is provided with row's screw along its length, and this row's screw need to, coupling corresponding with the fastening screw 18 of following back of the body arc trailing edge locker 3.The corner of base 4 has been respectively arranged with the hanger 6 reused.For beneficially welding operation, it is desirable to this utility model realizes when operation rotating in a circumferential direction, thus, connecting on the base 4 installing back of the body arc template 2 has deflection machine 21, and in the present embodiment, deflection machine 21 is arranged on base 4 through water tank 7.
Back of the body arc trailing edge locker 3 is mainly made up of back of the body arc trailing edge template 16, pressing plate 17 and fastening screw 18.Back of the body arc trailing edge template 16 is fine strip shape structure, it has the work surface of coupling blade convexity 23 trailing edge molded line in the height direction, for the ease of machine-shaping and installation, back of the body arc trailing edge template 16 main sequentially linking by multiple mold segment, combines, and each mold segment is matched with a blade convexity 23 trailing edge segment type line in the height direction.Pressing plate 17 is multiple, when clamping, the one end requiring each pressing plate 17 is withheld in back of the body arc trailing edge template 16, the other end latches on base 4 by corresponding fastening screw 18, thus, preferably, pressing plate 17 structure is zigzag pressing plate, and its upper elongated end withholds back of the body arc trailing edge template 16, lower elongated end arranges screw hole (being used for installing fastening screw 18)；Multiple pressing plates 17 are pressed in back of the body arc trailing edge template 16 along the short transverse interval fastener of hollow blade 22, each pressing plate 17 is by least fastening screw 18 corresponding fastening on base 4, in order to ensure the stability that pressing plate 17 is installed, being provided with cushion block 19 between each pressing plate 17 and base 4, this cushion block 19 correspondence is at the fastening screw 18 of each pressing plate 17.
Water tank 7 is used for containing cooling water.Owing to above-mentioned deflection machine 21 is arranged on base 4 through water tank 7, then deflection machine 21 has filled the water tank 7 securing member on base 4 while realizing itself characteristic, it is of course also possible to arrange sealing member and securing member the most separately.Being provided with outlet 20 in the bottom of aforementioned water tank 7, this outlet 20 is communicated by the bosh of water pipe with back of the body arc template 2.In order to ensure that cooling down water can sufficiently eject back of the body arc template 2, is provided with the water pump to cooling water pressurization on water tank 7 water pipe interiorly or exteriorly.
Described by said structure it should be apparent that, one end of back of the body arc template 2 of the present utility model and inner arc template 1 is hinged, the other end is dismountable closing component structure, in the present embodiment, this dismountable closing component structure is that screw rod closing component structure is (certain, other closing component structure can also be used to replace, such as snap lock structure, anchor ear closing component structure etc.), main by sealed screw rod 5, it is opened in screw hole composition (in inner arc template 1 the most up, screw hole can also be set) in inner arc template 1 and back of the body arc template 2, sealed screw rod 5 is from top to bottom through inner arc template 1 and back of the body arc template 2, and it is corresponding sealed fixing on base 4.The lifting of inner arc template 1 for convenience, the hinged end in inner arc template 1 is provided with balancing weight 9.
Above-mentioned concrete technical scheme, only in order to this utility model to be described, is not intended to limit.Although this utility model being described in detail with reference to above-mentioned concrete technical scheme, it will be understood by those within the art that: above-mentioned concrete technical scheme still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of technical solutions of the utility model.
Claims (9)
1. a hollow blade welding clamping tooling, described hollow blade (22) is main to be combined by blade convexity (23) and blade concavity (25) welding of Split type structure；It is characterized in that: described clamping tooling includes carrying on the back arc template (2) and inner arc template (1), described back of the body arc template (2) has the work surface of coupling blade convexity (23) molded line in the height direction, described inner arc template (1) has the work surface of coupling blade concavity (25) molded line in the height direction, and one end of described back of the body arc template (2) and inner arc template (1) is hinged, the other end is dismountable closing component structure.
Hollow blade welding clamping tooling the most according to claim 1, it is characterized in that: the inside of described back of the body arc template (2) is provided with bosh, and offering several hole for water sprayings communicated respectively with bosh on the work surface of back of the body arc template (2), these hole for water sprayings are along the track arrangement of work surface correspondence hollow blade (22) weld seam of back of the body arc template (2)；Described clamping tooling includes water tank (7), and the outlet (20) of this water tank (7) communicates with the bosh of back of the body arc template (2).
Hollow blade welding clamping tooling the most according to claim 2, it is characterised in that: offering a plurality of return flume on the work surface of described back of the body arc template (2), the outer end of every return flume extends at hole for water spraying, the inner extends to the lowest part of work surface.
4. according to hollow blade welding clamping tooling described in Claims 2 or 3, it is characterised in that: the hole for water spraying on the work surface of described back of the body arc template (2) is two rows, and they are arranged with the track of zigzag broken line.
5. according to hollow blade welding clamping tooling described in claim 1,2 or 3, it is characterised in that: described clamping tooling includes base (4), and described base (4) is used for installing back of the body arc template (2), has deflection machine (21) in the upper connection of base (4).
Hollow blade welding clamping tooling the most according to claim 5, it is characterized in that: described clamping tooling includes back of the body arc trailing edge locker (3), described back of the body arc trailing edge locker (3) is mainly by back of the body arc trailing edge template (16), pressing plate (17) and fastening screw (18) composition, described back of the body arc trailing edge template (16) has the work surface of coupling blade convexity (23) trailing edge molded line in the height direction, described pressing plate (17) is multiple, one end of each pressing plate (17) is withheld on back of the body arc trailing edge template (16), the other end latches on base (4) by corresponding fastening screw (18), multiple pressing plates (17) are pressed on back of the body arc trailing edge template (16) along the short transverse interval fastener of hollow blade (22).
Hollow blade welding clamping tooling the most according to claim 6, it is characterised in that: described back of the body arc trailing edge template (16) is that multiple mold segment is sequentially connected and combines.
Hollow blade welding clamping tooling the most according to claim 1, it is characterised in that: the hinged end of described inner arc template (1) is provided with balancing weight (9).
Hollow blade welding clamping tooling the most according to claim 1, it is characterised in that: described closing component structure is screw rod closing component structure, is mainly made up of sealed screw rod (5), the screw hole that is opened on inner arc template (1) and/or back of the body arc template (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461835.1U CN205614269U (en) | 2016-05-20 | 2016-05-20 | Clamping frock is used in hollow blade welding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620461835.1U CN205614269U (en) | 2016-05-20 | 2016-05-20 | Clamping frock is used in hollow blade welding |
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| CN205614269U true CN205614269U (en) | 2016-10-05 |
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| CN201620461835.1U Active CN205614269U (en) | 2016-05-20 | 2016-05-20 | Clamping frock is used in hollow blade welding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052608A (en) * | 2017-06-27 | 2017-08-18 | 山东核电设备制造有限公司 | A kind of section is the welder and method of the arc-shaped welding pieces of L-type |
| CN109465577A (en) * | 2019-01-11 | 2019-03-15 | 河北工业大学 | A kind of ultra-thin alloy welding deposit repairs cooling system and cooling means |
| CN111702384A (en) * | 2020-06-02 | 2020-09-25 | 大连理工大学 | A assembly jig for fan-shaped subassembly automatic spot welding |
-
2016
- 2016-05-20 CN CN201620461835.1U patent/CN205614269U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052608A (en) * | 2017-06-27 | 2017-08-18 | 山东核电设备制造有限公司 | A kind of section is the welder and method of the arc-shaped welding pieces of L-type |
| CN107052608B (en) * | 2017-06-27 | 2019-10-22 | 山东核电设备制造有限公司 | A kind of section is the welding method of the arc-shaped welding pieces of L-type |
| CN109465577A (en) * | 2019-01-11 | 2019-03-15 | 河北工业大学 | A kind of ultra-thin alloy welding deposit repairs cooling system and cooling means |
| CN111702384A (en) * | 2020-06-02 | 2020-09-25 | 大连理工大学 | A assembly jig for fan-shaped subassembly automatic spot welding |
| CN111702384B (en) * | 2020-06-02 | 2021-05-07 | 大连理工大学 | A assembly jig for fan-shaped subassembly automatic spot welding |
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