CN114515935A - Positioning device and method suitable for assembling and welding thin-wall sleeve and bottom plate - Google Patents
Positioning device and method suitable for assembling and welding thin-wall sleeve and bottom plate Download PDFInfo
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- CN114515935A CN114515935A CN202210158665.XA CN202210158665A CN114515935A CN 114515935 A CN114515935 A CN 114515935A CN 202210158665 A CN202210158665 A CN 202210158665A CN 114515935 A CN114515935 A CN 114515935A
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- welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a positioning device and a positioning method suitable for assembling and welding a thin-wall sleeve and a bottom plate, which relate to the technical field of welding and comprise a support frame, wherein a bottom platform assembly for fixing the bottom plate is arranged in the support frame, the top of the support frame is connected with a plurality of positioning and clamping assemblies in a sliding manner, and each positioning and clamping assembly comprises a plurality of clamping device assemblies for clamping the thin-wall sleeve; and an assembly welding space is formed between the positioning and clamping assembly and the bottom platform assembly. The invention realizes the clamping and positioning of the thin-wall sleeve by the movable positioning and clamping component, improves the positioning efficiency and has wide application range.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a positioning device and a positioning method suitable for assembling and welding a thin-wall sleeve and a bottom plate.
Background
The spent fuel grillwork body structure is formed by welding dozens of long thin-wall sleeves with the length of about 5m with a bottom plate and welding the sleeves with connecting plates. Because sleeve length is longer and the wall thickness is only 2.5mm to the bottom plate size is great, lacks special positioning and clamping device's the condition, the whole assembly welding of body welding deformation is difficult to control, and welding efficiency is lower.
The inventor finds that some devices for positioning the fuel grillwork are available, for example, the prior art discloses a welding jig for positioning the grillwork by using a nuclear fuel assembly, which comprises a square frame surrounded by four positioning plates; the casing clamp comprises an upper cover plate and a bottom plate, a through hole is formed in the position, corresponding to the casing, of the bottom plate, and the casing is clamped and fixed through the upper cover plate and the bottom plate.
Above-mentioned scheme upper cover plate sets up the plum blossom hole, needs fix a position simultaneously to each sleeve pipe through the plum blossom hole, if some sleeve pipe positions among them are not centering, needs the whole upper cover plate position of adjusting, leads to the positioning efficiency not high. And the number of the quincuncial holes is limited, so that the fuel grillwork can not be suitable for fuel grillworks with various specifications.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the positioning device and the positioning method suitable for assembling and welding the thin-wall sleeve and the bottom plate, the thin-wall sleeve is clamped and positioned by the movable positioning and clamping component, the positioning efficiency is improved, and the application range is wide.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a positioning device suitable for assembly welding of a thin-walled sleeve and a bottom plate, including a support frame, a bottom platform assembly for fixing the bottom plate is installed in the support frame, the top of the support frame is slidably connected with a plurality of positioning and clamping assemblies, each positioning and clamping assembly includes a plurality of clamping device assemblies for clamping the thin-walled sleeve; an assembly welding space is formed between the positioning and clamping assembly and the bottom platform assembly.
As a further implementation mode, the clamping device assemblies are arranged on the cross beam at intervals, and the two ends of the cross beam are symmetrically provided with the pressure lever assemblies; the support frame is provided with a first positioning plate used for being matched with the pressure rod assembly.
As a further implementation mode, the positioning plate is provided with a plurality of positioning holes along the moving direction of the positioning and clamping assembly, and a press rod in the press rod assembly and the positioning holes form a plug-pull structure.
As a further implementation manner, the gripper assembly includes a lifting mechanism, and a second positioning plate connected to the lifting mechanism.
As a further implementation manner, a clamping groove is arranged on one side of the second positioning plate facing the bottom platform assembly.
As a further implementation mode, the lifting mechanism comprises an inner sleeve and an outer sleeve which are sleeved together, one end of the inner sleeve is connected with the screw nut assembly, and the other end of the inner sleeve is connected with the second positioning plate.
As a further implementation manner, the bottom platform assembly comprises a platform, a plurality of pairs of pressing plates for fixing the bottom plate are arranged on the platform, and the pressing plates enable the bottom plate to keep an upward convex state.
As a further implementation, the pressing plate is of an inverted L-shaped structure.
As a further implementation, the platform is equipped with a positioning mechanism.
In a second aspect, an embodiment of the present invention further provides a positioning method suitable for assembly welding of a thin-walled sleeve and a bottom plate, where the positioning method includes:
placing the bottom plate provided with the positioning groove on the bottom platform assembly, positioning the bottom plate by using a positioning mechanism, and performing reversible deformation fixing on the bottom plate through the top block and the pressing plate to enable the center of the bottom plate to generate a height difference relative to the periphery;
positioning the lower port of the thin-wall sleeve by using a positioning groove, and positioning the upper port of the thin-wall sleeve by using a positioning clamping assembly; the positioning clamping component is matched with the bottom plate to clamp and fix the thin-wall sleeve by operating the pressure lever component; welding the lower port of the thin-wall sleeve and the bottom plate;
and the thin-wall sleeve is welded layer by layer, and the deformation of the bottom plate is reduced by the pressing plate and the top block in the welding process until the assembly welding of the fuel grillwork is completed.
The invention has the following beneficial effects:
(1) the positioning and clamping assembly can move along the support frame, and the positioning and clamping assembly does not need to be arranged on each row of sleeves, so that the number of clamping device assemblies is reduced; due to the movable characteristic of the positioning and clamping assembly, the sleeve positioning and clamping on the premise of reducing the number of the clamping assemblies are met; the corresponding clamping device assembly of each sleeve in the same row is convenient to adjust independently, and the positioning efficiency is improved.
(2) The clamping device assembly comprises a lifting mechanism and a positioning plate, wherein the height of the positioning plate is adjusted through the lifting mechanism, so that the thin-wall sleeve is clamped and positioned; and the locating plate of connecting elevating system carries on spacingly to thin wall sleeve one end outer wall, and the cooperation bottom plate is to the spacing of thin wall sleeve other end inner wall, guarantees to the telescopic stable centre gripping of thin wall, can not appear rocking in welding process.
(3) The invention is provided with the pressure lever assembly, and the pressure lever assembly is matched with the positioning hole, so that automatic positioning can be realized, and the positioning efficiency is further improved.
(4) The bottom platform assembly is arranged, the bottom platform assembly can enable the bottom plate to form a reversible deformation structure through the matching of the pressing plate and the top block, and the influence of the deformation of the bottom plate on the whole structure in the welding process is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are included to illustrate an exemplary embodiment of the invention and not to limit the invention.
FIG. 1 is a front view of the present invention in accordance with one or more embodiments;
FIG. 2 is a side view of the present disclosure according to one or more embodiments;
FIG. 3 is a top view of the present disclosure according to one or more embodiments;
FIG. 4 is a schematic illustration of a positioning and clamping assembly according to one or more embodiments of the present invention;
FIG. 5 is a schematic illustration of a strut assembly according to one or more embodiments of the present invention;
FIG. 6 is a schematic illustration of a gripper assembly according to one or more embodiments of the present disclosure;
FIG. 7 is a schematic view of a bottom deck assembly according to one or more embodiments of the present disclosure;
FIG. 8 is an enlarged view of a portion of FIG. 7 at A;
FIG. 9 is a schematic diagram of a reverse deformation architecture in accordance with one or more embodiments of the present invention;
FIG. 10 is a schematic illustration of a backplane construction according to one or more embodiments of the present disclosure.
The device comprises a portal frame assembly, 101, a main body structure, 102, a lower platform, 103, an upper platform, 2, a lower guide rail, 3, a first positioning plate, 4, a positioning and clamping assembly, 4-1, a first positioning and clamping assembly, 4-2, a second positioning and clamping assembly, 401, a pressure rod assembly, 40101, a pressure rod, 40102, a connecting rod, 40103, a supporting rod, 40104, a positioning rod, 40105, a spring, 402, a beam, 403, a clamp assembly, 4031, a crank, 4032, a bearing, 4033, an outer sleeve, 4034, a nut, 4035, a lead screw, 4036, an inner sleeve, 4037, a second positioning plate, 404, an upper guide rail, 5, a bottom platform assembly, 501, a base plate, 502, a connecting plate, 503, a positioning mechanism, 504, a pressure plate, 6, a thin-walled sleeve, 7, a bottom plate, 701, a positioning groove, 8 and a top block.
Detailed Description
The first embodiment is as follows:
the embodiment provides a positioning device suitable for assembling and welding a thin-wall sleeve and a bottom plate, in particular to a long thin-wall sleeve suitable for a spent fuel grid, as shown in fig. 1 and 2, the positioning device comprises a support frame, a bottom platform component 5 and a plurality of positioning and clamping components 4, the support frame of the embodiment adopts a portal frame component 1, and the top of the portal frame component 1 is connected with one or more positioning and clamping components 4 in a sliding manner. The bottom platform assembly 5 is arranged inside the gantry assembly 1 and used for supporting the fuel grid bottom plate.
As shown in fig. 3, in this embodiment, two positioning and clamping assemblies 4 are provided, that is, a first positioning and clamping assembly 4-1 and a second positioning and clamping assembly 4-2, and the first positioning and clamping assembly 4-1 and the second positioning and clamping assembly 4-2 can move along the X-axis direction of the gantry assembly 1, so as to ensure the positioning accuracy when welding between adjacent thin-wall sleeves 6 and the bottom plate 7 and the thin-wall sleeves 6 on the premise of reducing the number of clamping devices for fixing the thin-wall sleeves 6 to the maximum.
Wherein, the directions of the X axis, the Y axis and the Z axis are referred to as the directions shown in FIG. 3.
As shown in fig. 2, the gantry assembly 1 comprises a main structure 101, wherein the main structure 101 is formed by assembling and welding profile steel and steel plates; the inside of the main structure 101 forms the assembly welding space of the thin-wall sleeve 6 and the bottom plate 7. The two sides of the main structure 101 in the Y-axis direction are symmetrically provided with a plurality of layers of platforms, and the platforms are used as operation tables for workers during assembly and welding of the fuel grillwork body.
In the present embodiment, the stages are disposed at two intervals in the Z-axis direction, i.e., the upper stage 103 and the lower stage 102. It will be appreciated that in other embodiments, the platform may be provided with other numbers of layers, depending on the length of the thin-walled sleeve 6.
As shown in fig. 4, the positioning and clamping assembly 4 is matched with the gantry assembly 1 through a guide rail assembly, and the guide rail assembly is distributed along the X-axis direction and comprises a lower guide rail 2 arranged at the top of the main body structure 101 and an upper guide rail 404 matched with the lower guide rail 2; the position adjustment of the positioning and clamping assembly 4 is realized by the movement of the lower guide rail 2 relative to the lower guide rail 2.
The positioning and clamping assembly 4 comprises a cross beam 402, a compression bar assembly 401 and a clamp assembly 403, the bottom of the cross beam 402 is symmetrically provided with an upper guide rail 404, the two ends of the cross beam 402 are respectively provided with the compression bar assembly 401, the compression bar assembly 401 is matched with a first positioning plate 3 arranged at the top of the main body structure 101, and the first positioning plate 3 is positioned outside the guide rail assembly and is parallel to the guide rail assembly.
As shown in fig. 5, the pressing rod assembly 401 includes a pressing rod 40101, a connecting rod 40102, a supporting rod 40103, a positioning rod 40104 and a spring 40105, one end of the pressing rod 40101 is connected with the connecting rod 40102 through a pin shaft, the connecting rod 40102 is bolted with the end of the cross beam 402, and the connecting rod 40102 is perpendicular to the cross beam 402. The positioning rod 40104 vertically penetrates through the cross beam 402, and one end of the positioning rod is provided with a positioning pin which is matched with a guide hole formed in the pressing rod 40101; the other end of the positioning rod 40104 penetrates through a positioning hole formed in the first positioning plate 3, and a rod section of the positioning rod 40104 arranged between the cross beam 402 and the first positioning plate 3 is sleeved with a spring 40105; the positioning action of the cross beam is realized by the matching of the positioning rod 40104 and the positioning hole on the positioning plate driven by the operation of the pressing rod 40101.
The first positioning plate 3 is provided with a plurality of positioning holes at intervals in the X-axis direction, a press rod in the press rod assembly 401 and the positioning holes form a plug-in structure, the press rod is plugged into the positioning holes to position and fasten the cross beam 402, and the press rod is pulled out to enable the cross beam 402 to move in the X direction.
A plurality of clamp assemblies 403 are arranged on the crossbeam 402 at intervals, and the number of the clamp assemblies 403 is adapted to the number of the thin-wall sleeves 6 of the fuel grillwork. The gripper assembly 403 comprises a lifting mechanism, and a second positioning plate 4037 connected to the lifting mechanism, wherein the height of the second positioning plate 4037 is changed through the lifting mechanism, so as to realize the positioning and clamping of the thin-walled sleeve 6.
In order to ensure stable clamping of the thin-walled sleeve 6, a clamping groove is provided on the side of the second positioning plate 4037 facing the bottom platform assembly 5, and the size of the clamping groove is adapted to the outer diameter of the thin-walled sleeve 6.
In the present embodiment, the lifting mechanism adopts a lead screw and nut mechanism, as shown in fig. 6, the lifting mechanism includes an outer sleeve 4033, an inner sleeve 4036, a lead screw 4035, and a nut 4034, and the outer sleeve 4033 penetrates through the beam 402 and is detachably connected, for example, bolted; the lead screw 4035 is coaxially arranged in the outer sleeve 4033, and the nut 4034 is sleeved outside the lead screw 4035 and is in threaded fit with the lead screw 4035; one end of the inner sleeve 4036 is detachably connected with the nut 4034, the other end of the inner sleeve 4036 is detachably connected with the second positioning plate 4037, and the lead screw 4035 rotates to enable the nut 4034 to drive the inner sleeve 4036 to move up and down along the inner wall of the outer sleeve 4033.
The lead screw 4035 is connected to a cover plate by a bearing 4032, the cover plate is mounted on the top of the outer sleeve 4033, and the protruding end of the lead screw 4035 is connected to a turning portion to rotate the lead screw 4035 by operating the turning portion. The rotating part can be electrically or manually operated, and in the embodiment, the protruding end of the lead screw 4035 is connected with the crank 4031.
As shown in fig. 7, the bottom stage assembly 5 includes a base plate 501, a plurality of connection plates 502, and a pressing plate 504, the connection plates 502 are arranged at intervals in the X-axis direction, the base plates 501 are arranged at intervals in the Y-axis direction, and the connection plates 502 and the base plates 501 form a stage on which the bottom plate 7 is placed.
The plurality of pairs of pressing plates 504 are symmetrically arranged on two sides of the platform in the X-axis direction, the edges of the bottom plate 7 are pressed by the pressing plates 504, a certain height difference, namely an upward convex state, is generated in the center of the bottom plate relative to the periphery, the bottom plate 7 is fixed in a reversible deformation mode, the deformation of the bottom plate 7 is gradually reduced in the welding process, and the bottom plate is released completely in the reversible deformation mode after the welding is finished. The pressing plate 504 is used for fixing the bottom plate 7 in a reverse deformation mode, so that structural deformation after welding is finished due to deformation of the bottom plate 7 in the welding process is avoided.
As shown in fig. 9, the pressing plate 504 has an inverted L-shaped structure to catch the bottom plate 7. In order to make the middle of the bottom plate 7 protrude, the bottom of the bottom plate 7 is provided with a top block 8.
The platform is also provided with a positioning mechanism 503, and the bottom plate 7 is positioned through the positioning mechanism 503. As shown in fig. 7 and 8, the positioning mechanism 503 is disposed on one side of the platform, and can be implemented by a bolt and a positioning block connected with the bolt; the moving direction of the positioning block is along the X-axis direction.
In the present embodiment, as shown in fig. 10, the bottom plate 7 is provided with a positioning slot 701 for storing the inner cavity of the thin-walled sleeve 6, and the positioning slot 701 cooperates with the gripper assembly 403 to clamp and position the thin-walled sleeve 6.
The second embodiment:
the embodiment provides a positioning method suitable for assembling and welding a thin-wall sleeve and a bottom plate, and the positioning device of the first embodiment comprises the following steps:
(1) the spent fuel grillwork bottom plate 7 provided with the positioning grooves 701 is placed on the bottom platform assembly 5, the bottom plate 7 is positioned by the positioning mechanism 503, and the bottom plate 7 is subjected to reversible deformation and fixation by the top block 8 and the pressing plate 504, so that the height difference of the center of the bottom plate 7 relative to the periphery is about 2-5 mm.
(2) The thin-wall sleeve 6 is hoisted to the central position of the bottom plate 7, the lower port of the thin-wall sleeve 6 is positioned by the positioning groove 701, the first positioning and clamping component 4-1 is moved to the upper port of the thin-wall sleeve 6 along the X-axis direction, and the pressure rod component 401 is operated to enable the pressure rod to be inserted into the positioning hole of the positioning plate 3, so that the first positioning and clamping component 4-1 is clamped and fixed. And welding the lower port of the sleeve with the bottom plate 7.
(3) And (3) repeating the step (2), performing divergent layer-by-layer welding on the thin-wall sleeve 6 according to a cross shape, and matching the first positioning and clamping component 4-1 with the second positioning and clamping component 4-2 for use to ensure the positioning precision when welding the adjacent thin-wall sleeve 6 with the bottom plate 7 and the thin-wall sleeve 6.
(4) In the welding process of the thin-wall sleeve 6, the pressing plate 504 and the top block 8 gradually reduce the deformation of the bottom plate until the complete assembly welding of the fuel grid body is completed, and the reverse deformation of the bottom plate 7 is completely released.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A positioning device suitable for assembling and welding a thin-wall sleeve and a bottom plate is characterized by comprising a support frame, wherein a bottom platform assembly used for fixing the bottom plate is installed in the support frame, the top of the support frame is in sliding connection with a plurality of positioning and clamping assemblies, and each positioning and clamping assembly comprises a plurality of clamping device assemblies for clamping the thin-wall sleeve; an assembly welding space is formed between the positioning and clamping assembly and the bottom platform assembly.
2. The positioning device suitable for assembling and welding the thin-walled sleeve and the bottom plate according to claim 1, wherein the clamp assemblies are mounted on the cross beam at intervals, and two ends of the cross beam are symmetrically provided with the compression rod assemblies; the support frame is provided with a first positioning plate used for being matched with the pressure rod assembly.
3. The positioning device for assembling and welding the thin-walled sleeve and the bottom plate according to claim 2, wherein the positioning plate is provided with a plurality of positioning holes along the moving direction of the positioning and clamping assembly, and a press rod in the press rod assembly and the positioning holes form a plug-in structure.
4. The positioning device suitable for assembly welding of the thin-walled sleeve and the bottom plate as claimed in claim 1 or 2, wherein the clamping device assembly comprises a lifting mechanism and a second positioning plate connected with the lifting mechanism.
5. The positioning device for assembly welding of the thin-walled sleeve and the bottom plate according to claim 4, wherein a side of the second positioning plate facing the bottom platform assembly is provided with a slot.
6. The positioning device for assembly welding of the thin-walled sleeve and the bottom plate as claimed in claim 4, wherein the lifting mechanism comprises an inner sleeve and an outer sleeve sleeved together, one end of the inner sleeve is connected to the lead screw nut assembly, and the other end of the inner sleeve is connected to the second positioning plate.
7. The positioning device for assembly welding of the thin-walled sleeve to the base plate as claimed in claim 1, wherein the bottom platform assembly comprises a platform, and a plurality of pairs of pressing plates for fixing the base plate are disposed on the platform, and the pressing plates keep the base plate in a convex state.
8. The positioning device for assembly welding of the thin-walled sleeve and the bottom plate as claimed in claim 7, wherein the pressing plate has an inverted L-shaped structure.
9. The positioning device for assembly welding of the thin-walled sleeve and the bottom plate as claimed in claim 7, wherein the platform is provided with a positioning mechanism.
10. A positioning method suitable for assembling and welding a thin-wall sleeve and a bottom plate, which is characterized in that the positioning device according to any one of claims 1-9 is adopted, and comprises the following steps:
placing the bottom plate provided with the positioning groove on the bottom platform assembly, positioning the bottom plate by using a positioning mechanism, and performing reversible deformation fixing on the bottom plate through the top block and the pressing plate to enable the center of the bottom plate to generate a height difference relative to the periphery;
positioning the lower port of the thin-wall sleeve by using a positioning groove, and positioning the upper port of the thin-wall sleeve by using a positioning clamping assembly; operating the pressure lever assembly to enable the positioning and clamping assembly to be matched with the bottom plate to clamp and fix the thin-wall sleeve; welding the lower port of the thin-wall sleeve and the bottom plate;
And the thin-wall sleeve is welded layer by layer, and the deformation of the bottom plate is reduced by the pressing plate and the top block in the welding process until the assembly welding of the fuel grillwork is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210158665.XA CN114515935A (en) | 2022-02-21 | 2022-02-21 | Positioning device and method suitable for assembling and welding thin-wall sleeve and bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210158665.XA CN114515935A (en) | 2022-02-21 | 2022-02-21 | Positioning device and method suitable for assembling and welding thin-wall sleeve and bottom plate |
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| Publication Number | Publication Date |
|---|---|
| CN114515935A true CN114515935A (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210158665.XA Pending CN114515935A (en) | 2022-02-21 | 2022-02-21 | Positioning device and method suitable for assembling and welding thin-wall sleeve and bottom plate |
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| CN (1) | CN114515935A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07284995A (en) * | 1994-04-15 | 1995-10-31 | Ishikawajima Harima Heavy Ind Co Ltd | Restraining jig |
| CN101783189A (en) * | 2009-01-21 | 2010-07-21 | 中国核电工程有限公司 | Spent fuel storage rack in pressurized water reactor nuclear power station |
| CN103692190A (en) * | 2013-12-26 | 2014-04-02 | 山东彼岸电力科技有限公司 | Side-pressing compression tool |
| CN203956407U (en) * | 2014-07-30 | 2014-11-26 | 山东核电设备制造有限公司 | The assembly tooling of pipe group equipment |
| CN105014288A (en) * | 2015-08-20 | 2015-11-04 | 哈尔滨工业大学 | Welding fixture for nuclear fuel assembly positioning grillwork |
| CN205309678U (en) * | 2016-01-29 | 2016-06-15 | 山东核电设备制造有限公司 | Steel sheet preset's frock |
| JP2019000866A (en) * | 2017-06-14 | 2019-01-10 | 株式会社サムソン | Welding jig of heat exchanger |
| CN209319117U (en) * | 2018-12-27 | 2019-08-30 | 横店集团英洛华电气有限公司 | Plate-like piece and more cylindrical member welding fixtures side by side |
| CN214350429U (en) * | 2021-01-04 | 2021-10-08 | 中车青岛四方机车车辆股份有限公司 | Flexible anti-deformation device for plate-shaped beam assembly welding |
-
2022
- 2022-02-21 CN CN202210158665.XA patent/CN114515935A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07284995A (en) * | 1994-04-15 | 1995-10-31 | Ishikawajima Harima Heavy Ind Co Ltd | Restraining jig |
| CN101783189A (en) * | 2009-01-21 | 2010-07-21 | 中国核电工程有限公司 | Spent fuel storage rack in pressurized water reactor nuclear power station |
| CN103692190A (en) * | 2013-12-26 | 2014-04-02 | 山东彼岸电力科技有限公司 | Side-pressing compression tool |
| CN203956407U (en) * | 2014-07-30 | 2014-11-26 | 山东核电设备制造有限公司 | The assembly tooling of pipe group equipment |
| CN105014288A (en) * | 2015-08-20 | 2015-11-04 | 哈尔滨工业大学 | Welding fixture for nuclear fuel assembly positioning grillwork |
| CN205309678U (en) * | 2016-01-29 | 2016-06-15 | 山东核电设备制造有限公司 | Steel sheet preset's frock |
| JP2019000866A (en) * | 2017-06-14 | 2019-01-10 | 株式会社サムソン | Welding jig of heat exchanger |
| CN209319117U (en) * | 2018-12-27 | 2019-08-30 | 横店集团英洛华电气有限公司 | Plate-like piece and more cylindrical member welding fixtures side by side |
| CN214350429U (en) * | 2021-01-04 | 2021-10-08 | 中车青岛四方机车车辆股份有限公司 | Flexible anti-deformation device for plate-shaped beam assembly welding |
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