CN114473330A - Spent fuel storage grillage square tube grid pitch size precision control device - Google Patents
Spent fuel storage grillage square tube grid pitch size precision control device Download PDFInfo
- Publication number
- CN114473330A CN114473330A CN202011263984.4A CN202011263984A CN114473330A CN 114473330 A CN114473330 A CN 114473330A CN 202011263984 A CN202011263984 A CN 202011263984A CN 114473330 A CN114473330 A CN 114473330A
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- China
- Prior art keywords
- positioning
- connecting plate
- square tube
- fuel storage
- spent fuel
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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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
The invention belongs to a control device, and particularly relates to a device for controlling the dimensional accuracy of grid pitch of a square tube of a spent fuel storage grillwork. The device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork comprises a bolt, a pin 1, a connecting plate and a positioning tool unit, wherein the positioning tool unit is fixedly connected with the connecting plate through the bolt, and the pin 1 is arranged on the connecting plate and used for connecting the connecting plate with another positioning tool unit. The invention has the following remarkable effects: when the novel grillwork square tube is assembled and assembled, the grid distance between each square tube is positioned through the device, the welding deformation of full penetration of T-shaped welding of the connecting plates is formed between the control square tubes, the consistency of the size of the grillwork assembled in the same model is ensured, the assembling and assembling efficiency is improved, and the mass production identification basis is realized.
Description
Technical Field
The invention belongs to a control device, and particularly relates to a device for controlling the dimensional accuracy of grid pitch of a square tube of a spent fuel storage grillwork.
Background
The spent fuel storage framework is a core device in nuclear fuel circulation and is widely applied to storage in a stack, storage in a middle off-stack and storage in a post-treatment plant.
A brand new structure high-density boron-aluminum spent fuel storage grillwork (hereinafter referred to as a novel grillwork) designed by a certain design institute further improves critical safety and mechanical indexes and increases the loading density of spent fuel. In order to satisfy seismic acceleration's general demand simultaneously, novel grid square pipe is connected all around and between the adjacent square pipe and is adopted the full penetration structure of T type to weld, and welding deformation is big, and square pipe upper end is the horn mouth in addition, and the location difficulty, grid spacing location size tolerance 1mm between per two square pipes in the novel grid, size precision requirement is very high, and the manufacturing degree of difficulty is very big, needs design and makes grid spacing size location frock and carries out grid spacing size and welding deformation control.
Disclosure of Invention
The invention provides a device for controlling the dimensional accuracy of grid pitch of a square tube of a spent fuel storage grid, aiming at the defects of the prior art.
The invention is realized by the following steps: the device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork comprises a bolt, a pin 1, a connecting plate and a positioning tool unit, wherein the positioning tool unit is fixedly connected with the connecting plate through the bolt, and the pin 1 is arranged on the connecting plate and used for connecting the connecting plate with another positioning tool unit.
The device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork comprises a positioning tool unit, a positioning plate unit and a positioning plate, wherein the positioning tool unit comprises a positioning plate 1, a pin 2, a positioning plate 2 and an inner hexagonal full-thread screw; wherein the upper surface of the positioning plate 1 is connected with the connecting plate, and the lower surface is connected with the positioning plate 2 through a pin 2 and an inner hexagonal full-thread screw.
According to the device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork, the sizes of the pin holes and the bolt holes which are formed by connecting the positioning plate 2 and the positioning plate 1 are matched with the machining and assembling sizes between the positioning plate 2 and the positioning surface of the square tube in a high-precision mode.
According to the device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork, the assembling size precision of the positioning plate 1 and each pin and bolt connecting hole on the connecting plate meets the requirement.
The device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork comprises a positioning plate 2 and a positioning plate 1, wherein the positioning plate 1 and a connecting plate are assembled in a pin and bolt connection mode.
The device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork comprises a positioning plate 1, a positioning plate 2 and a connecting plate, wherein the positioning plate, the positioning plate and the connecting plate are made of aluminum alloy materials.
The device for controlling the grid pitch size precision of the square tube of the spent fuel storage grillwork is characterized in that the control size tolerance of the grid pitch of the square tube of the adjacent positioning tool units is +/-0.5 mm.
The invention has the following remarkable effects: when the novel grillwork square tube is assembled and assembled, the grid distance between each square tube is positioned through the device, the welding deformation of full penetration of T-shaped welding of the connecting plates is formed between the control square tubes, the consistency of the size of the grillwork assembled in the same model is ensured, the assembling and assembling efficiency is improved, and the mass production identification basis is realized.
Drawings
FIG. 1 is a three-dimensional schematic diagram of an assembled square tube grid pitch positioning device;
FIG. 2 is a schematic plan view of the square tube grid pitch positioning device after assembly;
FIG. 3 is a connection diagram of the positioning tool unit and the connection board;
FIG. 4 is a schematic view of a positioning tool unit;
FIG. 5 is a side cross-sectional view of FIG. 4;
fig. 6 is an assembly schematic.
Number in the figure: 1. a bolt; 2. a pin 1; 3. a connecting plate; 4. positioning a tool unit; 5. a positioning plate 1; 6. a pin 2; 7. a positioning plate 2; 8. hexagonal full thread screw in.
Detailed Description
A spent fuel storage grillage square tube grid pitch size precision control device comprises a bolt, a pin 1, a connecting plate and a positioning tool unit.
The assembling and positioning sizes of two adjacent positioning tool units are connected through a connecting plate by adopting pin hole positioning and bolts.
The positioning tool unit comprises a positioning plate 1, a pin 2, a positioning plate 2 and an inner hexagonal full-thread screw. Wherein the upper surface of the positioning plate 1 is connected with the connecting plate, and the lower surface is connected with the positioning plate 2 through a pin and a hexagon socket head cap full thread screw.
In the device, the positioning plate 1, the positioning plate 2 and the connecting plate are made of aluminum alloy materials.
The key point of the manufacturing of the grid distance positioning device is as follows:
1) the sizes of the pin holes and the bolt holes connected with the positioning plate 2 and the positioning plate 1 and the machining and assembling size precision between the positioning plate 2 and the square tube positioning surface meet the requirements.
2) The assembly size precision of the positioning plate 1 and each pin and bolt connecting hole on the connecting plate meets the requirement.
3) The positioning plate 2 and the positioning plate 1 are assembled between the positioning plate 1 and the connecting plate in a connecting mode of a pin and a bolt, and the positioning size and the connecting strength are met.
4) The assembly surface of the positioning plate 2 is processed according to the requirement of the shape and the size of the square tube.
5) The positioning plate 1, the positioning plate 2 and the connecting plate are made of aluminum alloy materials, so that the weight is light, the assembly is easy, the operation is simple, and the aluminum alloy machining performance is good.
6) The grid pitch control size tolerance of the square tubes of the adjacent positioning tool units is +/-0.5 mm.
The invention is further described below with reference to the accompanying drawings.
1) The connecting plate of the piece 3 and the positioning plate 1 of the piece 5 are machined according to a design construction drawing, and the dimensional tolerance is strictly controlled.
2) The positioning plate 2 is machined to mainly control the dimensional tolerance between the assembly surface and the connecting holes of the piece 6 and the piece 8.
3) And the positioning plate 2 and the positioning plate 1 are assembled through the piece 6 and the piece 8 to form a positioning tool unit.
4) The positioning tool unit is plugged into the top of the square pipe from the top of the square pipe, the assembly surface of the positioning plate 2 is assembled and positioned with the square pipe square parallel surface, and the positioning plate 1 is placed on the end surface of the top surface of the horn mouth of the square pipe.
5) The connecting plate and the positioning tool unit are assembled through the part 1 and the part 2.
6) And after assembly, measuring the central dimension of the adjacent positioning tool unit, checking whether the central grid distance control dimension of the positioning plate 1 meets the assembly positioning requirement, and checking whether the grid distance dimension between the assembly surface and the assembly surface of the positioning plate 2 of the adjacent grid distance positioning dimension positioning tool unit in the same direction meets the assembly positioning requirement.
Claims (7)
1. The utility model provides a spent fuel storage grillage square tube grid pitch size accuracy control device which characterized in that: the connecting plate fixing device comprises a bolt (1), a pin 1(2), a connecting plate (3) and a positioning tool unit (4), wherein the positioning tool unit (4) is fixedly connected with the connecting plate (3) through the bolt, and the pin 1(2) is arranged on the connecting plate (3) and used for connecting the connecting plate (3) with the other positioning tool unit (4).
2. The device for controlling the dimensional accuracy of the grid pitch of the square tube of the spent fuel storage grid as claimed in claim 1, wherein: the positioning tool unit comprises a positioning plate 1(5), a pin 2(6), a positioning plate 2(7) and an inner hexagonal full-thread screw (8); wherein the upper surface of the positioning plate 1(5) is connected with the connecting plate (3), and the lower surface is connected with the positioning plate 2(7) through the pin 2(6) and the hexagon socket head cap screw (8).
3. The device for controlling the dimensional accuracy of the grid pitch of the square tube of the spent fuel storage grid as claimed in claim 2, wherein: the sizes of the pin holes and the bolt holes connected with the positioning plates 2 and 7 and the positioning surfaces of the square tubes of the positioning plates 1 and 5 are matched with the machining and assembling sizes between the positioning plates 2 and 7 and the positioning surfaces of the square tubes in a high-precision manner.
4. The device for controlling the dimensional accuracy of the grid pitch of the square tube of the spent fuel storage grid as claimed in claim 3, wherein: the assembling size precision of the pin and bolt connecting holes on the positioning plate 1(5) and the connecting plate (3) meets the requirement.
5. The device for controlling dimensional accuracy of grid pitch of square tubes of the spent fuel storage grid according to claim 4, is characterized in that: the positioning plates 2(7) and 1(5), and the positioning plates 1(5) and the connecting plate (3) are assembled by adopting a pin and bolt connection mode.
6. The device for controlling the dimensional accuracy of the grid pitch of the square tube of the spent fuel storage grid as claimed in claim 5, wherein: the positioning plates 1(5), the positioning plates 2(7) and the connecting plate (3) are made of aluminum alloy materials.
7. The device for controlling the dimensional accuracy of the grid pitch of the square tube of the spent fuel storage grid as claimed in claim 6, wherein: the grid pitch control size tolerance of the square tubes of the adjacent positioning tool units is +/-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263984.4A CN114473330A (en) | 2020-11-12 | 2020-11-12 | Spent fuel storage grillage square tube grid pitch size precision control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011263984.4A CN114473330A (en) | 2020-11-12 | 2020-11-12 | Spent fuel storage grillage square tube grid pitch size precision control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114473330A true CN114473330A (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011263984.4A Pending CN114473330A (en) | 2020-11-12 | 2020-11-12 | Spent fuel storage grillage square tube grid pitch size precision control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114473330A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020191730A1 (en) * | 2001-03-29 | 2002-12-19 | Mitsubishi Heavy Industries, Ltd | Spent fuel housing square pipe, basket and spent fuel housing container |
| JP2010014681A (en) * | 2008-07-07 | 2010-01-21 | Toshiba Corp | Spent fuel storage rack and manufacturing method therefor |
| CN101916602A (en) * | 2010-07-13 | 2010-12-15 | 浙江博凡动力装备有限公司 | Spent fuel storage device |
| CN102479560A (en) * | 2010-11-23 | 2012-05-30 | 大连创达技术交易市场有限公司 | Spent fuel storage grillwork for nuclear power station |
| CN205614247U (en) * | 2016-04-25 | 2016-10-05 | 广州汽车集团股份有限公司 | Frock is manufactured experimently to automobile body down |
| CN206241704U (en) * | 2016-12-10 | 2017-06-13 | 成都飞机工业（集团）有限责任公司 | A kind of small data control processed in batches location-plate |
| CN207681837U (en) * | 2017-12-29 | 2018-08-03 | 成都航天中兴机械有限责任公司 | A kind of screen work welding positioning tool |
-
2020
- 2020-11-12 CN CN202011263984.4A patent/CN114473330A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020191730A1 (en) * | 2001-03-29 | 2002-12-19 | Mitsubishi Heavy Industries, Ltd | Spent fuel housing square pipe, basket and spent fuel housing container |
| JP2010014681A (en) * | 2008-07-07 | 2010-01-21 | Toshiba Corp | Spent fuel storage rack and manufacturing method therefor |
| CN101916602A (en) * | 2010-07-13 | 2010-12-15 | 浙江博凡动力装备有限公司 | Spent fuel storage device |
| CN102479560A (en) * | 2010-11-23 | 2012-05-30 | 大连创达技术交易市场有限公司 | Spent fuel storage grillwork for nuclear power station |
| CN205614247U (en) * | 2016-04-25 | 2016-10-05 | 广州汽车集团股份有限公司 | Frock is manufactured experimently to automobile body down |
| CN206241704U (en) * | 2016-12-10 | 2017-06-13 | 成都飞机工业（集团）有限责任公司 | A kind of small data control processed in batches location-plate |
| CN207681837U (en) * | 2017-12-29 | 2018-08-03 | 成都航天中兴机械有限责任公司 | A kind of screen work welding positioning tool |
Non-Patent Citations (1)
| Title |
|---|
| 孙四中;王哲;许贵平;张侃;张恒泉;杨彪;: "乏燃料贮存格架制造工艺过程尺寸控制", 机械设计与制造工程, no. 05, pages 96 - 98 * |
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