CN220782779U - Shape control clamp for electron beam welding of large-diameter alloy thin-wall part - Google Patents
Shape control clamp for electron beam welding of large-diameter alloy thin-wall part Download PDFInfo
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- CN220782779U CN220782779U CN202322623855.7U CN202322623855U CN220782779U CN 220782779 U CN220782779 U CN 220782779U CN 202322623855 U CN202322623855 U CN 202322623855U CN 220782779 U CN220782779 U CN 220782779U
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- 238000003466 welding Methods 0.000 title claims abstract description 44
- 238000010894 electron beam technology Methods 0.000 title claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 14
- 239000000956 alloy Substances 0.000 title claims abstract description 14
- 230000008093 supporting effect Effects 0.000 claims abstract description 104
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a shape control clamp for electron beam welding of a large-diameter alloy thin-wall part, which comprises a bottom plate, a top plate and a positioning mandrel, wherein the bottom plate and the top plate are arranged in parallel, two ends of the positioning mandrel are respectively connected with the bottom plate and the top plate, a supporting ring plate is arranged on the positioning mandrel, the supporting ring plate is arranged below the top plate and is close to the top plate, a plurality of supporting mechanisms which are uniformly distributed in a circular shape are arranged on the upper end face of the bottom plate and the upper end face of the supporting ring plate, and the supporting mechanisms are propped against the inner wall of the part. The utility model plays a role in supporting the welding position of the part through the supporting mechanism, thereby reducing the deformation of the part after welding.
Description
Technical Field
The utility model relates to the field of gas turbines, in particular to a shape control clamp for electron beam welding of a large-diameter alloy thin-wall part.
Background
In the aerospace manufacturing industry, welding technology is an indispensable technology. In modern production, various novel welding techniques are widely applied, so that the processing of various components in aerospace is greatly simplified, production materials are saved, and the production efficiency is improved.
In the welding work of the gas turbine, the parts of the hot end assembly welding parts (the casing, the inner and outer casings and the connecting cylinder) of the gas turbine have the following special structures: the welding flange is cone-shaped, has a larger diameter (1-1.5 m), a thin wall (t=2-5 mm), and has small machining reserve (single side 1.5-2 mm) at the welded flange part. During welding, the lower flange and the upper flange are required to be welded at two ends of the part respectively, wherein the large diameter of the part leads to long electron beam welding time due to long welding seam, and the postweld heat treatment temperature exceeds 800 ℃, and the part is easy to deform due to high cooling speed of the part in air. The technical requirement is strict in the internal quality of the welding seam (the standard is GJB1718A-2005, grade I welding seam grade), the total deformation amount required by the thermal processing deformation is not allowed to exceed 1mm, and the deformation amount is uniform. Therefore, the quality control of the welding and heat treatment process is important and difficult to control the deformation amount of the parts. The existing technological measures are usually to adopt G-shaped clamping anti-deformation measures uniformly distributed on the circumference, the technological measures are not ideal in control of deformation, the scrapping of parts due to out-of-tolerance deformation is easy to cause, and the qualification rate is not high.
Disclosure of utility model
The utility model aims to provide a shape control clamp for electron beam welding of a large-diameter alloy thin-wall part, which plays a role in supporting a welding position of the part through a supporting mechanism, so that the deformation of the part after welding is reduced.
The utility model solves the problems by adopting the following technical scheme:
The utility model provides a major diameter alloy thin wall spare electron beam welds with accuse shape anchor clamps, includes bottom plate, roof and location dabber, bottom plate and roof be parallel arrangement, location dabber's both ends be connected with bottom plate and roof respectively, the cover is equipped with the support ring board on the location dabber, the support ring board set up in the below of roof and be close to the roof, the up end of bottom plate and the up end of support ring board are provided with a plurality of supporting mechanism that are circular evenly distributed, supporting mechanism supports on the inner wall of part.
In the above technical scheme, preferably, bottom plate and roof all be circularly, supporting mechanism including setting up the bottom fan-shaped backup pad on the bottom plate to and set up the fan-shaped backup pad in top on the support ring plate, the lower extreme of bottom fan-shaped backup pad and top fan-shaped backup pad all be provided with slider and supporting seat, the slider is the T type and fixes the lower extreme at bottom fan-shaped backup pad and top fan-shaped backup pad, the supporting seat on seted up along the radial spout of bottom plate and roof, the slider slides and sets up in the spout, the supporting seat passes through the bolt fastening on bottom plate and support ring plate, the horizontal direction is provided with the tight screw in top on the supporting seat, the afterbody of tight screw is supported in the inboard of bottom fan-shaped backup pad and top fan-shaped backup pad, bottom fan-shaped backup pad and top fan-shaped backup pad pass through fan-shaped board fastening screw and fix on the supporting seat.
In the above technical solution, preferably, the top plate is provided with a plurality of exhaust ports.
In the above technical scheme, preferably, the bottom plate on be provided with a plurality of supporting shoe and the support column that are circular evenly distributed, the support column on be fixed with the clamp plate through the bolt, the clamp plate passes through the lead screw and is connected with the bottom plate.
In the above technical scheme, preferably, the upper end of the positioning mandrel is inserted through the top plate, the upper end of the positioning mandrel is horizontally inserted with a pressing wedge block with a trapezoidal section, and the pressing wedge block is propped against the upper end face of the top plate.
In the above technical scheme, preferably, the upper end face of the bottom plate and the lower end face of the top plate are both provided with the spigot, and the spigot is provided with a plurality of stepped spigots.
Compared with the prior art, the utility model has the following advantages and effects:
When the clamp is used, the lower flange, the part and the upper flange are clamped between the bottom plate and the top plate, and the supporting mechanism is adjusted to enable the supporting mechanism to be propped against the inner wall of the upper end part and the lower end part of the part through the supporting mechanism, so that the supporting mechanism can play a role in supporting the welding position of the part, and when the part is welded and cooled, the supporting piece can reduce the deformation of the welding position of the part during welding and cooling shrinkage, so that the qualification rate of the welded part is improved.
Drawings
Fig. 1 is a schematic perspective view of a shape control jig for electron beam welding of a large-diameter alloy thin-walled member according to an embodiment of the present utility model.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a schematic view of the lower flange, parts and upper flange of fig. 2 after installation.
Fig. 4 is a schematic cross-sectional structure of fig. 3.
Fig. 5 is a front view of the support mechanism of fig. 1.
The device comprises a bottom plate 1, a supporting block 11, a supporting column 12, a pressing plate 13, a screw rod 14, a top plate 2, an exhaust port 21, a positioning mandrel 3, a pressing wedge 31, a supporting ring plate 4, a supporting mechanism 5, a bottom fan-shaped supporting plate 51, a top fan-shaped supporting plate 52, a sliding block 53, a supporting seat 54, a sliding groove 55, a jacking screw 56, a fan-shaped plate fastening screw 57, a spigot 6, a part 7, a lower flange 71 and an upper flange 72.
Detailed Description
The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.
Referring to fig. 1-5, the shape control fixture for electron beam welding of a large-diameter alloy thin-wall piece comprises a bottom plate 1, a top plate 2 and a positioning mandrel 3, wherein the bottom plate 1 and the top plate 2 are arranged in parallel, two ends of the positioning mandrel 3 are respectively connected with the bottom plate 1 and the top plate 2, a supporting ring plate 4 is sleeved on the positioning mandrel 3, the supporting ring plate 4 is arranged below the top plate 2 and is close to the top plate 2, a plurality of supporting mechanisms 5 which are uniformly distributed in a circular shape are arranged on the upper end face of the bottom plate 1 and the upper end face of the supporting ring plate 4, and the supporting mechanisms 5 are propped against the inner wall of a part 7.
When the clamp is used, firstly, the bottom plate 1 is fixed to the lower end of the positioning mandrel 3, then the lower flange 71, the part 7 and the upper flange 72 are sleeved on the positioning mandrel 3 in sequence, then the top plate 2 is fixed to the upper end of the positioning mandrel 3, so that the lower flange 71, the part 7 and the upper flange 72 are clamped between the bottom plate 1 and the top plate 2, and finally, the supporting mechanism 5 is regulated to enable the supporting mechanism 5 to be propped against the inner wall at the upper end and the lower end of the part 7, so that the supporting mechanism 5 can play a role in supporting the welding position of the part 7, and when the part 7 is welded and cooled, the supporting member can reduce the deformation of the welding position of the part 7 when the welding position is welded and cooled and contracted, so that the qualification rate of the part 7 after welding is improved.
Referring to fig. 1, fig. 2, fig. 4 and fig. 5, the bottom plate 1 and the top plate 2 are all circular, the supporting mechanism 5 comprises a bottom fan-shaped supporting plate 51 arranged on the bottom plate 1 and a top fan-shaped supporting plate 52 arranged on the supporting ring plate 4, the lower ends of the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52 are both provided with a sliding block 53 and a supporting seat 54, the sliding block 53 is in a T shape and is fixed at the lower ends of the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52, the supporting seat 54 is provided with a sliding groove 55 along the radial direction of the bottom plate 1 and the top plate 2, the sliding block 53 is slidably arranged in the sliding groove 55 (as shown in fig. 5), the supporting seat 54 is fixed on the bottom plate 1 and the supporting ring plate 4 through bolts, the horizontal direction of the supporting seat 54 is provided with a pushing screw 56, the tail parts of the pushing screw 56 are propped against the inner sides of the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52, and the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52 are fixed on the supporting seat 54 through the fan-shaped fastening screw 57.
Because the part 7 is cone-shaped, the inner diameters of the lower end position and the upper end position of the part 7 are different, so in the embodiment, the shapes of the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52 are different, and the outer side of the bottom fan-shaped supporting plate 51 and the outer side of the top fan-shaped supporting plate 52 are respectively attached to the inner wall of the lower end position and the inner wall of the upper end position of the part 7, so that a better supporting effect is achieved on the part 7 through the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52.
After the part 7 is clamped between the bottom plate 1 and the top plate 2, the jacking screw 56 is screwed, the jacking screw 56 pushes the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52 to move outwards along the sliding groove 55 until the outer side of the bottom fan-shaped supporting plate 51 and the outer side of the top fan-shaped supporting plate 52 are tightly attached to the inner wall of the part 7, then the fan-shaped plate fastening screw 57 is screwed to fix the positions of the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52, the jacking screw 56 is used for adjusting the positions of the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52, so that the part 7 is conveniently installed between the bottom plate 1 and the top plate 2, and meanwhile, the bottom fan-shaped supporting plate 51 and the top fan-shaped supporting plate 52 with different sizes are replaced to adapt to the parts 7 with different inner diameters, so that the part 7 has good interchangeability, and is convenient to assemble and disassemble in a bolt fixing mode.
Referring to fig. 1, the top plate 2 is provided with a plurality of exhaust ports 21.
Because more heat is generated when the electron beam welding is used for welding, the temperature of the part 7 is higher, and the deformation amount of thermal deformation and cooling deformation of the part 7 is increased, the welding heat can be timely emitted through the exhaust port 21, the temperature of the part 7 during welding is reduced, the deformation amount of the part 7 is reduced, the weight of the welding machine is reduced, and the welding machine is convenient to carry.
Referring to fig. 1 and 2, the base plate 1 is provided with a plurality of support blocks 11 and support columns 12 which are uniformly distributed in a circular shape, the support columns 12 are fixedly provided with pressing plates 13 through bolts, and the pressing plates 13 are connected with the base plate 1 through screw rods 14.
After the lower flange 71, the part 7 and the upper flange 72 are clamped and fixed between the bottom plate 1 and the top plate 2, the bottom of the lower flange 71 is supported through the supporting block 11, then the pressing plate 13 is fixed on the supporting column 12 through bolts, and the screw rod 14 is screwed with the nut, so that the pressing plate 13 is driven to be pressed down by the nut to tightly press and fix the lower flange 71, the fixation between the lower flange 71 and the bottom plate 1 is realized, and the risk of low welding quality caused by unstable fixation of the lower flange 71 during welding is reduced.
Referring to fig. 1, the upper end of the positioning mandrel 3 is inserted through the top plate 2, the upper end of the positioning mandrel 3 is horizontally inserted with a pressing wedge 31 with a trapezoidal section, and the pressing wedge 31 is abutted against the upper end surface of the top plate 2.
The top plate 2 is fixed on the positioning mandrel 3 through the pressing wedge 31, the pressing wedge 31 drives the top plate 2 to move downwards when being inserted, the clamping and fixing effects of the bottom plate 1 and the top plate 2 on the lower flange 71, the part 7 and the upper flange 72 are enhanced, the pressing wedge 31 is convenient to assemble and disassemble, and the installation efficiency of the clamp is improved.
Referring to fig. 1 and 2, the upper end surface of the bottom plate 1 and the lower end surface of the top plate 2 are provided with a plurality of spigots 6, and the spigots 6 are arranged in a step shape.
The function of positioning and fixing the lower flange 71 and the upper flange 72 is achieved through the spigot 6 during installation, and meanwhile, the spigot 6 is arranged in a step shape, so that the lower flange 71 and the upper flange 72 with different inner diameters can be adapted, and the compatibility of the clamp is improved.
In the embodiment, the utility model is made of 304 austenitic stainless steel materials with no magnetism, good heat resistance, good corrosion resistance and small thermal expansion coefficient, and can meet the requirement of high temperature strength (100 Mpa when the yield strength is 100 Mpa) by high temperature heat treatment while meeting the requirement of an electron beam welding tool on no magnetism. In addition, the material is common in the market, has good cutting processability and is convenient to manufacture.
The mounting steps of the clamp are as follows:
(1) A supporting mechanism 5 is arranged on the bottom plate 1, the bottom fan-shaped supporting plate 51 is moved to a proper position, and a supporting block 11, a supporting column 12 and a positioning mandrel 3 are arranged;
(2) Sequentially placing the lower flange 71, the part 7 and the upper flange 72 on the bottom plate 1, adjusting the jacking screws 56 to enable the bottom sector support plate 51 to be tightly attached to the inner wall of the part 7, and then screwing the sector plate fastening screws 57 to fix the bottom sector support plate 51;
(3) Mounting the support ring plate 4 on the positioning mandrel 3, mounting the support mechanism 5 on the support ring plate 4, adjusting the jacking screw 56 to enable the top sector support plate 52 to be tightly attached to the inner wall of the part 7, and screwing the sector plate fastening screw 57 to fix the top sector support plate 52;
(4) The top plate 2 is mounted on the positioning mandrel 3, the pressing wedge 31 is inserted for wedging, the pressing plate 13 is mounted on the supporting column 12, the screw rod 14 is inserted on the pressing plate 13, the screw rod 14 is screwed with a nut, and the pressing plate 13 is pressed and fixed by screwing the nut.
The foregoing description of the utility model is merely exemplary of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. A shape control clamp for electron beam welding of a large-diameter alloy thin-wall part is characterized in that: including bottom plate, roof and location dabber, bottom plate and roof be parallel arrangement, the both ends of location dabber be connected with bottom plate and roof respectively, location dabber cover is equipped with the support ring board, the support ring board set up in the below of roof and be close to the roof, the up end of bottom plate and the up end of support ring board are provided with a plurality of supporting mechanism that are circular evenly distributed, supporting mechanism supports on the inner wall of part.
2. The shape control jig for electron beam welding of a large-diameter alloy thin-walled member according to claim 1, wherein: the bottom plate and the top plate are circular, the supporting mechanism comprises a bottom fan-shaped supporting plate arranged on the bottom plate and a top fan-shaped supporting plate arranged on a supporting ring plate, the lower ends of the bottom fan-shaped supporting plate and the top fan-shaped supporting plate are provided with a sliding block and a supporting seat, the sliding block is T-shaped and fixed at the lower ends of the bottom fan-shaped supporting plate and the top fan-shaped supporting plate, the supporting seat is provided with a radial sliding groove along the bottom plate and the top plate, the sliding block is arranged in the sliding groove in a sliding manner, the supporting seat is fixed on the bottom plate and the supporting ring plate through bolts, a jacking screw is arranged in the horizontal direction on the supporting seat, the tail part of the jacking screw abuts against the inner sides of the bottom fan-shaped supporting plate and the top fan-shaped supporting plate, and the bottom fan-shaped supporting plate and the top fan-shaped supporting plate are fixed on the supporting seat through fan-shaped plate fastening screws.
3. The shape control jig for electron beam welding of a large-diameter alloy thin-walled member according to claim 1, wherein: the top plate is provided with a plurality of exhaust ports.
4. The shape control jig for electron beam welding of a large-diameter alloy thin-walled member according to claim 1, wherein: the bottom plate on be provided with a plurality of supporting shoe and the support column that are circular evenly distributed, the support column on be fixed with the clamp plate through the bolt, the clamp plate passes through the lead screw and is connected with the bottom plate.
5. The shape control jig for electron beam welding of a large-diameter alloy thin-walled member according to claim 1, wherein: the upper end of the positioning mandrel is inserted into the top plate in a penetrating way, the upper end of the positioning mandrel is horizontally inserted with a pressing wedge block with a trapezoid cross section, and the pressing wedge block is propped against the upper end face of the top plate.
6. The shape control jig for electron beam welding of a large-diameter alloy thin-walled member according to claim 1, wherein: the upper end face of the bottom plate and the lower end face of the top plate are respectively provided with a spigot, and the spigots are in a step shape and are provided with a plurality of spigots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322623855.7U CN220782779U (en) | 2023-09-25 | 2023-09-25 | Shape control clamp for electron beam welding of large-diameter alloy thin-wall part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322623855.7U CN220782779U (en) | 2023-09-25 | 2023-09-25 | Shape control clamp for electron beam welding of large-diameter alloy thin-wall part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220782779U true CN220782779U (en) | 2024-04-16 |
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ID=90653040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322623855.7U Active CN220782779U (en) | 2023-09-25 | 2023-09-25 | Shape control clamp for electron beam welding of large-diameter alloy thin-wall part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220782779U (en) |
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2023
- 2023-09-25 CN CN202322623855.7U patent/CN220782779U/en active Active
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