CN113084406A - Backing weld welding position frock - Google Patents
Backing weld welding position frock Download PDFInfo
- Publication number
- CN113084406A CN113084406A CN202110404944.5A CN202110404944A CN113084406A CN 113084406 A CN113084406 A CN 113084406A CN 202110404944 A CN202110404944 A CN 202110404944A CN 113084406 A CN113084406 A CN 113084406A
- Authority
- CN
- China
- Prior art keywords
- core
- nut
- positioning
- stem
- column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 claims description 5
- 239000001307 helium Substances 0.000 description 34
- 229910052734 helium Inorganic materials 0.000 description 34
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 34
- 239000007789 gas Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K37/0443—Jigs
Abstract
The invention discloses a backing welding positioning tool which comprises an outer nut, an expansion core, an outer positioning core and an inner positioning core, wherein the expansion core comprises a core column and a lower cone, the lower cone is connected with the bottom of the core column, the outer nut is sleeved on the core column and is mutually screwed with the core column, the inner positioning core is sleeved on the core column, the core column drives the lower cone to move up and down in the inner positioning core, the outer positioning core is sleeved on the inner positioning core, and the top surface of the outer positioning core is abutted to the bottom of the outer nut. The invention provides a backing welding positioning tool, which improves the forming quality of a welding seam.
Description
Technical Field
The invention relates to a backing welding positioning tool, and belongs to the technical field of welding.
Background
At present, a superconducting coil of a tokamak device is generally formed by winding a CICC conductor. The CICC structure refers to a conductor formed by inserting a superconducting cable into an armor and then reducing the diameter of the armor. The superconducting coil is cooled by supercritical helium forced flow, in order to introduce liquid helium into the coil, helium holes need to be drilled in the armor on the inner side or the outer side of the coil, and then helium inlet and outlet bosses are welded with the armor. The coil armor bears huge electromagnetic load in the operation process, and the geometric disconnection of the coil armor at the position is caused by the loss of helium inlet and outlet armor materials, so that helium inlet and outlet welding seams are the areas with highest stress on the whole coil, and strict requirements are provided for the welding seam quality. Before welding, the helium inlet and outlet bosses and the helium hole are difficult to accurately position and fix.
Disclosure of Invention
The invention aims to solve the technical problem that the defects of the prior art are overcome, and in order to solve the phenomena, the invention provides the backing welding positioning tool, so that the forming quality of a welding seam is improved.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a bottoming welds welding position frock, it includes outer nut, bloated core, outer location core and interior location core, the core that expands includes stem and lower centrum, the bottom of centrum and stem links to each other down, outer nut cover is established on the stem and is closed with the stem is each other soon, interior location core cover is established on the stem, the stem drives down the centrum and reciprocates in the location core, outer location core cover is established on interior location core, the top surface of outer location core and outer nut's bottom butt.
Further, the periphery of stem is provided with the screw thread, the inner wall of outer nut is provided with the screw thread that closes with the stem each other soon.
Furthermore, an inner nut is screwed on the core column and is positioned in an inner cavity of the outer nut, the bottom of the inner nut is positioned in a through hole of the outer positioning core, and the top of the inner positioning core is abutted to the bottom of the inner nut.
Furthermore, the axial center of the inner positioning core is provided with a through hole for the core column of the expansion core to pass through, a plurality of supporting pieces are arranged around the bottom of the inner positioning core, and the lower vertebral body of the expansion core supports the supporting pieces in the upward moving process.
Furthermore, each supporting piece is provided with a groove, and the grooves form an annular groove.
Furthermore, the lower cone body is a wedge-shaped structure with a small upper part and a big lower part, and air passages which are mutually communicated are arranged in the core column and the lower cone body.
By adopting the technical scheme, the outer nut is rotated to enable the expansion core to move upwards so as to press the helium inlet and outlet boss and the inner surface of the armor helium hole, and the outer positioning core can also apply vertical force to the helium inlet and outlet boss, so that the purposes of positioning and enabling the helium inlet and outlet boss and the armor helium hole to be tightly attached are achieved. And an air passage is arranged in the core column of the expansion core and used for continuously conveying protective gas to the welding back surface, so that the oxidation of the welding back surface due to welding is prevented, and the welding quality of the welding back surface is improved. The positioning tool is designed according to the structural sizes of the helium inlet and the helium outlet and the armor helium hole, is a convenient and reliable positioning tool, can realize the accurate assembly and fixation of the boss of the helium inlet and the helium outlet and the armor helium hole, and improves the quality of a backing weld.
Drawings
FIG. 1 is a diagram illustrating a state of use of a backing welding positioning tool according to the present invention;
FIG. 2 is a perspective view of a backing weld positioning tool of the present invention;
FIG. 3 is a schematic view of the connection of the inner nut of the present invention;
FIG. 4 is a perspective view of the expansion core of the present invention;
FIG. 5 is a bottom view of FIG. 4;
FIG. 6 is a perspective view of an outer positioning core of the present invention;
FIG. 7 is a perspective view of an inner positioning core of the present invention;
fig. 8 is an internal schematic view of a backing welding positioning tool of the invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1, in the present embodiment, a backing welding positioning tool 10 is provided, and when in use, a helium inlet/outlet boss 9 is first sleeved on an outer positioning core 2 of the backing welding positioning tool 10, and then the backing welding positioning tool 10 is extended into the bottom of an armor helium hole 11 through the helium inlet/outlet boss 9.
As shown in fig. 1 to 8, the backing weld welding position tool 10 of the present embodiment includes an outer nut 6, an expansion core 4, an outer positioning core 2 and an inner positioning core 8, the expansion core 4 includes a core column 41 and a lower cone 42, the lower cone 42 is connected to the bottom of the core column 41, the outer nut 6 is sleeved on the core column 41 and screwed to the core column 41, the inner positioning core 8 is sleeved on the core column 41, the core column 41 drives the lower cone 42 to move up and down in the inner positioning core 8, the outer positioning core 2 is sleeved on the inner positioning core 8, and the top surface of the outer positioning core 2 is abutted to the bottom of the outer nut 6. The outer positioning core 2 is placed on the helium inlet and outlet boss 9, and the outer nut 6 is rotated when the outer positioning core 2 is propped by the helium inlet and outlet boss 9. Since the outer periphery of the stem 41 is provided with a screw thread and the inner wall of the outer nut 6 is provided with a screw thread which is screwed with the stem 41, the expansion core 4 is moved up and down by rotating the outer nut 6. The axial center of the inner positioning core 8 is provided with a through hole for the core column 41 of the expansion core 4 to pass through, the bottom of the inner positioning core 8 is provided with a plurality of supporting sheets 81 all around, and the lower vertebral body 42 of the expansion core 4 supports the supporting sheets 81 of the inner positioning core 8 in the upward movement process.
When the core column 41 of the expansion core 4 is screwed with the outer nut 6, the expansion core 4 moves upwards, the lower cone 42 of the expansion core 4 is matched with the inner positioning core 8, so that the supporting sheets 81 of the inner positioning core 8 are slowly spread, and meanwhile, the expansion core 4 also moves upwards slowly. As the inner positioning core 8 is expanded by the lower cone 42 of the expansion core 4, the gap between the expansion piece 81 of the inner positioning core 8 and the armor helium hole 11 becomes smaller and smaller until it comes into contact with the coil armor 12. Because half of the inner positioning core 8 is arranged in the armor helium hole 11 and the other half is arranged in the helium inlet and outlet boss 9, after the support sheet 81 of the inner positioning core 8 is contacted with the hole wall of the armor helium hole 11, the armor helium hole 11 and the helium inlet and outlet boss 9 are coaxial, and therefore left and right positioning of the helium inlet and outlet boss 9 and the coil armor 5 is completed.
Along with the inner positioning core 8 is expanded by the lower cone 42 of the expansion core 4, the gap between the inner positioning core 8 and the armor helium hole 11 is smaller and smaller to be in contact with the coil armor 12, so the outer nut 6 is continuously rotated to enable the expansion core 4 to continuously move upwards to enable the friction force between the inner positioning core 8, the armor helium hole 11 and the expansion core 4 to be larger and larger until the relative movement is difficult, at the moment, if the outer nut 6 is continuously rotated, the expansion core 4 cannot move upwards any more, acting force can be generated to downwards press the outer positioning core 2, the helium inlet and outlet boss 9 is tightly attached to the surface of the coil armor 12, and the up-and-down positioning is completed.
As shown in fig. 3 and 8, the inner nut 1 is screwed on the core column 41 of the expansion core 4, the inner nut 1 is positioned in the inner cavity of the outer nut 6, the bottom of the inner nut 1 is positioned in the through hole of the outer positioning core 2, and the top of the inner positioning core 8 is abutted against the bottom of the inner nut 1. When the welding positioning tool 10 is assembled, the inner positioning core 8 is sleeved on the expansion core 4, then the inner nut 1 is screwed on, the inner positioning core 8 and the expansion core 4 are pre-tightened, and the initial position of the expansion core 4 is determined.
As shown in fig. 7, each of the supporting pieces 81 is provided with a groove 82, and the grooves 82 form a ring groove 3. The lower vertebral body 42 is a wedge-shaped structure with a small upper part and a big lower part, the core column 41 and the lower vertebral body 42 are internally provided with air passages 7 which are mutually communicated, and the bottom of the lower vertebral body 42 is provided with air holes. After the whole positioning process is completed, protective gas is introduced from the gas inlet at the top of the core column 41, and the protective gas is conveyed to the welding surface through the gas hole at the bottom of the lower cone 42 and the annular groove 3 formed on the support sheet 81, so that the welding seam is protected, and the welding quality is improved.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a backing weld welding position frock which characterized in that: it includes outer nut (6), core (4) expand, outer location core (2) and interior location core (8), core (4) expand including stem (41) and lower centrum (42), centrum (42) link to each other with the bottom of stem (41) down, outer nut (6) cover is established on stem (41) and is closed soon each other with stem (41), interior location core (8) cover is established on stem (41), stem (41) drive down centrum (42) reciprocate in location core (8), outer location core (2) cover is established on interior location core (8), the top surface of outer location core (2) and the bottom butt of outer nut (6).
2. The backing welding positioning tool according to claim 1, characterized in that: the periphery of the core column (41) is provided with threads, and the inner wall of the outer nut (6) is provided with threads screwed with the core column (41).
3. The backing welding positioning tool according to claim 1, characterized in that: an inner nut (1) is screwed on the core column (41), the inner nut (1) is positioned in an inner cavity of the outer nut (6), the bottom of the inner nut (1) is positioned in a through hole of the outer positioning core (2), and the top of the inner positioning core (8) is abutted to the bottom of the inner nut (1).
4. The backing welding positioning tool according to claim 1, characterized in that: the axial center of the inner positioning core (8) is provided with a through hole for the core column (41) of the expansion core (4) to pass through, the bottom of the inner positioning core (8) is provided with a plurality of supporting pieces (81) all around, and the lower vertebral body (42) of the expansion core (4) supports the supporting pieces (81) in the upward movement process.
5. The backing welding positioning tool according to claim 4, characterized in that: every prop up piece (81) and all be provided with recess (82), a plurality of recess (82) constitute an annular (3).
6. The backing welding positioning tool according to claim 4, characterized in that: the lower cone body (42) is a wedge-shaped structure with a small upper part and a large lower part, and air passages (7) which are communicated with each other are arranged in the core column (41) and the lower cone body (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110404944.5A CN113084406A (en) | 2021-04-15 | 2021-04-15 | Backing weld welding position frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110404944.5A CN113084406A (en) | 2021-04-15 | 2021-04-15 | Backing weld welding position frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113084406A true CN113084406A (en) | 2021-07-09 |
Family
ID=76677796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110404944.5A Pending CN113084406A (en) | 2021-04-15 | 2021-04-15 | Backing weld welding position frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113084406A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB119800A (en) * | 1918-02-18 | 1918-10-17 | Frederick Coleby | Improvements relating to Expanding Mandrels. |
| JPH01136316A (en) * | 1987-11-24 | 1989-05-29 | Japan Atom Energy Res Inst | Superconducting magnet |
| JP2002263889A (en) * | 2001-03-13 | 2002-09-17 | Denso Corp | Full-circled welding device for cylindrical member and full-circled welding method for cylindrical member |
| CN201618934U (en) * | 2009-12-17 | 2010-11-03 | 成都飞机工业（集团）有限责任公司 | Welding positioner of thin-wall rectangular type section |
| CN102416549A (en) * | 2011-12-28 | 2012-04-18 | 江南工业集团有限公司 | Butt welding positioning device for thin-walled cylinder with seal head |
| CN103753089A (en) * | 2014-01-13 | 2014-04-30 | 上海森松制药设备工程有限公司 | Welding disc fixing tool |
| CN203679626U (en) * | 2013-11-08 | 2014-07-02 | 南车眉山车辆有限公司 | Connector body welding and positioning device |
| CN104439363A (en) * | 2014-12-05 | 2015-03-25 | 重庆耀勇减震器有限公司 | Expansion clamping device |
| CN104607747A (en) * | 2015-01-23 | 2015-05-13 | 中国科学院等离子体物理研究所 | Superconductor and shunt welding fixture and welding technology |
| CN104690400A (en) * | 2015-02-12 | 2015-06-10 | 中国科学院等离子体物理研究所 | Method for welding all-position narrow gap in Tokamak vacuum chamber |
| CN104741855A (en) * | 2015-03-31 | 2015-07-01 | 谢绪金 | Welding method for electric bicycle one-piece brake base |
| CN105252178A (en) * | 2015-11-17 | 2016-01-20 | 宜昌船舶柴油机有限公司 | Concentricity control method for axial welding of multilayer annular plates |
| CN106695234A (en) * | 2015-11-12 | 2017-05-24 | 首都航天机械公司 | Inner expansion positioning welding central spindle |
| CN109121281A (en) * | 2018-11-03 | 2019-01-01 | 上海辰光医疗科技股份有限公司 | Docking structure for cyclotron superconducting magnet and after-condenser |
| CN110497125A (en) * | 2019-07-09 | 2019-11-26 | 四川艾普耐斯油气工程服务有限公司 | A kind of dovetail section formula flange abutting joint device |
| CN111702394A (en) * | 2020-07-01 | 2020-09-25 | 孙君 | Self-adaptive alignment clamping device suitable for butt welding processing of pipe barrel parts |
| CN112122865A (en) * | 2020-08-26 | 2020-12-25 | 东方电气集团东方锅炉股份有限公司 | Dissimilar steel beveled tube plate and heat exchange tube sealing welding process |
-
2021
- 2021-04-15 CN CN202110404944.5A patent/CN113084406A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB119800A (en) * | 1918-02-18 | 1918-10-17 | Frederick Coleby | Improvements relating to Expanding Mandrels. |
| JPH01136316A (en) * | 1987-11-24 | 1989-05-29 | Japan Atom Energy Res Inst | Superconducting magnet |
| JP2002263889A (en) * | 2001-03-13 | 2002-09-17 | Denso Corp | Full-circled welding device for cylindrical member and full-circled welding method for cylindrical member |
| CN201618934U (en) * | 2009-12-17 | 2010-11-03 | 成都飞机工业（集团）有限责任公司 | Welding positioner of thin-wall rectangular type section |
| CN102416549A (en) * | 2011-12-28 | 2012-04-18 | 江南工业集团有限公司 | Butt welding positioning device for thin-walled cylinder with seal head |
| CN203679626U (en) * | 2013-11-08 | 2014-07-02 | 南车眉山车辆有限公司 | Connector body welding and positioning device |
| CN103753089A (en) * | 2014-01-13 | 2014-04-30 | 上海森松制药设备工程有限公司 | Welding disc fixing tool |
| CN104439363A (en) * | 2014-12-05 | 2015-03-25 | 重庆耀勇减震器有限公司 | Expansion clamping device |
| CN104607747A (en) * | 2015-01-23 | 2015-05-13 | 中国科学院等离子体物理研究所 | Superconductor and shunt welding fixture and welding technology |
| CN104690400A (en) * | 2015-02-12 | 2015-06-10 | 中国科学院等离子体物理研究所 | Method for welding all-position narrow gap in Tokamak vacuum chamber |
| CN104741855A (en) * | 2015-03-31 | 2015-07-01 | 谢绪金 | Welding method for electric bicycle one-piece brake base |
| CN106695234A (en) * | 2015-11-12 | 2017-05-24 | 首都航天机械公司 | Inner expansion positioning welding central spindle |
| CN105252178A (en) * | 2015-11-17 | 2016-01-20 | 宜昌船舶柴油机有限公司 | Concentricity control method for axial welding of multilayer annular plates |
| CN109121281A (en) * | 2018-11-03 | 2019-01-01 | 上海辰光医疗科技股份有限公司 | Docking structure for cyclotron superconducting magnet and after-condenser |
| CN110497125A (en) * | 2019-07-09 | 2019-11-26 | 四川艾普耐斯油气工程服务有限公司 | A kind of dovetail section formula flange abutting joint device |
| CN111702394A (en) * | 2020-07-01 | 2020-09-25 | 孙君 | Self-adaptive alignment clamping device suitable for butt welding processing of pipe barrel parts |
| CN112122865A (en) * | 2020-08-26 | 2020-12-25 | 东方电气集团东方锅炉股份有限公司 | Dissimilar steel beveled tube plate and heat exchange tube sealing welding process |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210709 |
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| RJ01 | Rejection of invention patent application after publication |