CN110246674B - Forming method of fan-shaped iron core cake of reactor - Google Patents
Forming method of fan-shaped iron core cake of reactor Download PDFInfo
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- CN110246674B CN110246674B CN201910198122.9A CN201910198122A CN110246674B CN 110246674 B CN110246674 B CN 110246674B CN 201910198122 A CN201910198122 A CN 201910198122A CN 110246674 B CN110246674 B CN 110246674B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
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Abstract
The invention discloses a method for forming a fan-shaped iron core cake of a reactor, which comprises the following steps: the method comprises the following steps: firstly, manufacturing a reactor fan-shaped iron core cake forming die; step two: firstly, inserting a positioning plate into each pair of corresponding inner equant notch and outer equant notch in each large sector area of a positioning die placed on a lower die; step three: the small sector area between every two adjacent positioning plates is respectively inserted and fully overlapped with the sector sheets; step four: sequentially replacing all positioning plates by using the core sheets to form a plurality of equally divided fan-shaped blocks, and then flattening the tops of the equally divided fan-shaped blocks by using a pressing plate to ensure that the core sheets in the equally divided fan-shaped blocks are flush with the end faces of the fan-shaped sheets; step five: taking the positioning die out of the upper die, and then sequentially inserting and stacking the iron core sheets at the gap between every two adjacent equal sector blocks; step six: and then, glue is poured into the upper die to fix the iron core sheet and the fan-shaped sheet together to form the fan-shaped iron core cake of the reactor. The invention has the advantage of high production efficiency.
Description
Technical Field
The invention relates to the technical field of reactor iron core cake processing, in particular to a reactor fan-shaped iron core cake forming method.
Background
The reactor sector core cake has the advantages of low noise and low loss, and as shown in fig. 1, the reactor sector core cake 4 consists of a core sheet 41 and a sector sheet 42. The manufacturing method of the iron core cake of the reactor used at present comprises the following steps: firstly, manufacturing a small equant fan-shaped mould of the fan-shaped segment, then inserting and stacking iron core sheets and fan-shaped sheets in the fan-shaped mould, brushing glue, curing and forming to form a small equant fan-shaped segment, and repeating the manufacturing process of the small equant fan-shaped segment to manufacture a plurality of equant fan-shaped segments; and then assembling the small equal-divided fan-shaped sheets into an integral iron core cake, and then pouring glue, curing and forming to finish the manufacture of the iron core cake of the reactor. The manufacturing of the reactor iron core cake has the following defects: the manufacturing process is multiple, the manufacturing period is long, the production efficiency is low, and the secondary assembly has an assembly gap, so that part of the iron core sheets may need to be removed, the filling rate of the section of the iron core is not ideal, the filling rate is inconsistent with the design requirement, and the product quality is influenced.
Disclosure of Invention
The invention aims to provide a method for forming a fan-shaped iron core cake of a reactor, which can improve the production efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for forming a fan-shaped iron core cake of a reactor comprises the following steps:
the method comprises the following steps: firstly, manufacturing a reactor fan-shaped iron core cake forming die; the structure of the reactor fan-shaped iron core cake forming die comprises: the lower mould, set up in the positioning die at lower mould top, set up in the lower mould top and the cover locate the outside last mould of positioning die and clamp plate, the structure of positioning die includes: a circular inner die positioned in the center, an annular outer die arranged outside the circular inner die in a surrounding way, the circular inner die and the annular outer die are connected together through a plurality of connected plates with the thickness being integral multiple of the thickness of the iron core sheet, all the connected plates divide the area between the circular inner die and the annular outer die into a plurality of large sector areas equally, a plurality of external equal-division notches are uniformly arranged on the outer wall of the circular inner die of each large sector area along the circumferential direction, a plurality of inner equant notches are uniformly arranged on the inner wall of the annular outer die of each large sector area along the circumferential direction, the inner equant notches and the outer equant notches of each large sector area correspond to each other one by one, each pair of corresponding inner equant notches and outer equant notches can be just inserted by positioning plates with the thickness being integral multiple of the thickness of the iron core sheet, and when the positioning plates are inserted into all the corresponding inner equant notches and the outer equant notches in the large sector area, the large sector area is just divided into a plurality of small sector areas for inserting and folding the fan-shaped sheets by each positioning plate;
step two: firstly, inserting a positioning plate into each pair of corresponding inner equant notch and outer equant notch in each large sector area of a positioning die placed on a lower die;
step three: the small sector area between every two adjacent positioning plates is respectively inserted and fully overlapped with the sector sheets;
step four: sequentially replacing all positioning plates by using the core sheets to form a plurality of equally divided fan-shaped blocks, and then flattening the tops of the equally divided fan-shaped blocks by using a pressing plate to ensure that the core sheets in the equally divided fan-shaped blocks are flush with the end faces of the fan-shaped sheets;
step five: taking the positioning die out of the upper die, and then sequentially inserting and stacking the iron core sheets at the gap between every two adjacent equal sector blocks;
step six: and then, glue is poured into the upper die to fix the iron core sheet and the fan-shaped sheet together to form the fan-shaped iron core cake of the reactor.
Further, the method for forming the fan-shaped iron core cake of the reactor comprises the following steps: in the first step, the specific positioning structure between the lower die and the positioning die is as follows: the center of the top of the lower die is provided with a positioning block protruding out of the upper surface of the lower die, the center of the bottom of the positioning die is provided with a positioning groove for the positioning block to be inserted, and the lower die and the positioning die are matched with each other through the positioning block and the positioning groove to realize center positioning.
Further, the method for forming the fan-shaped iron core cake of the reactor comprises the following steps: in the first step, a circle of sealing ring placing groove is arranged on the upper surface of the lower die outside the positioning die, and a sealing ring for sealing a gap between the upper die and the lower die is placed in the sealing ring placing groove.
Further, the method for forming the fan-shaped iron core cake of the reactor comprises the following steps: in the first step, a threaded hole which vertically penetrates through the positioning die is further formed in the center of the positioning die, a central screw rod is connected in the threaded hole in a threaded mode, and when the central screw rod is rotated, the positioning die can move up and down relative to the lower die.
Further, the method for forming the fan-shaped iron core cake of the reactor comprises the following steps: in step five, the positioning die is removed by rotating the central screw.
Through the implementation of the technical scheme, the invention has the beneficial effects that: the fan-shaped iron core cake is formed by only one process, so that the manufacturing process is reduced, the production time is saved, and the production efficiency is improved; and the iron core cake can be ensured to have no assembly gap, the filling rate of the section of the iron core is high, and the filling rate of the section of the iron core can be effectively ensured to meet the design requirement.
Drawings
Fig. 1 is a schematic structural diagram of a sector core cake of a reactor according to the background of the invention.
Fig. 2 is a schematic structural diagram of a reactor fan-shaped iron core cake forming die in the reactor fan-shaped iron core cake forming method of the invention.
Fig. 3 is a schematic structural view of the positioning die shown in fig. 2.
Fig. 4 is a schematic structural view of the section a-a shown in fig. 3.
Fig. 5 is a schematic structural view of the lower mold shown in fig. 2.
Fig. 6 is a schematic structural view of a B-B section shown in fig. 5.
Fig. 7 is a schematic structural view of the upper mold shown in fig. 2.
Fig. 8 is a structural view of the C-C section shown in fig. 7.
Fig. 9 is a schematic structural view of the pressure plate shown in fig. 2.
FIG. 10 is a schematic view of a positioning plate according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 2, 3, 4, 5, 6, 7, 8, 9 and 10, the method for forming the reactor segment core cake comprises the following steps:
the method comprises the following steps: firstly, manufacturing a reactor fan-shaped iron core cake forming die; the structure of the reactor fan-shaped iron core cake forming die comprises: lower mould 1 and set up in the location mould 2 at 1 top of lower mould, set up in 1 top of lower mould and the cover locate the outside last mould 6 of location mould 2 and clamp plate 8, the structure of location mould 2 includes: the circular inner die 21 is positioned at the center, the annular outer die 22 is arranged outside the circular inner die 21 in a surrounding way, the circular inner die 21 and the annular outer die 22 are connected together through a plurality of connecting plates 23 with the thickness being integral multiple of the thickness of the iron core sheet, all the connecting plates 23 equally divide the area between the circular inner die 21 and the annular outer die 22 into a plurality of large fan-shaped areas 24, a plurality of outer equally-divided notches 25 are uniformly arranged on the outer wall of the circular inner die 21 of each large fan-shaped area 24 along the circumferential direction, a plurality of inner equally-divided notches 26 are uniformly arranged on the inner wall of the annular outer die 22 of each large fan-shaped area 24 along the circumferential direction, the inner equally-divided notches 26 of each large fan-shaped area 24 are in one-to-one correspondence with the outer equally-divided notches 25, each pair of corresponding inner equally-divided notches 26 and outer equally-divided notches 25 can be just inserted into the positioning plates 3 with the thickness being integral multiple of the thickness of the iron core, the large sector area 24 is just divided into a plurality of small sector areas for inserting and folding the fan-shaped pieces 42 by each positioning plate 3;
wherein, the specific positioning structure between the lower die 1 and the positioning die 2 is as follows: a positioning block 11 protruding out of the upper surface of the lower die 1 is arranged at the center of the top of the lower die 1, a positioning groove 27 for inserting the positioning block 11 is arranged at the center of the bottom of the positioning die 2, and the lower die 1 and the positioning die 2 are matched with each other through the positioning block 11 and the positioning groove 27 to realize central positioning, so that the operation is more convenient, and the iron core cake forming efficiency is improved;
the center of the positioning die 2 is also provided with a threaded hole 28 vertically penetrating through the positioning die, the threaded hole 28 is in threaded connection with a central screw rod 5, and when the central screw rod 5 is rotated, the positioning die 2 can move up and down relative to the lower die 1, so that the positioning die can be taken out more easily and conveniently, and the friction force between the positioning die and the fan-shaped sheet can be reduced;
a circle of sealing ring placing groove 12 is arranged on the upper surface of the lower die 1 outside the positioning die 2, and a sealing ring 7 used for sealing a gap between the upper die 6 and the lower die 1 is placed in the sealing ring placing groove 12, so that the glue in the upper die can be prevented from leaking from the gap between the upper die and the lower die in the glue pouring process;
step two: firstly, inserting a positioning plate 3 into each pair of corresponding inner equant notch 26 and outer equant notch 25 in each large sector 24 of a positioning die 2 placed on a lower die 1;
step three: the small sector area between every two adjacent positioning plates 3 is respectively inserted and fully overlapped with the fan-shaped sheets 42;
step four: sequentially replacing all the positioning plates 3 by using the core sheets 41 to form a plurality of equally divided fan-shaped blocks, and then flattening the tops of the equally divided fan-shaped blocks by using the pressing plates 8 to ensure that the core sheets 41 in the equally divided fan-shaped blocks are flush with the end surfaces of the fan-shaped sheets 42;
step five: rotating the central screw rod 5, taking the positioning die 2 out of the upper die 6, and then sequentially inserting and stacking the iron core sheets 41 in the gap between every two adjacent equal sectors;
step six: and then, glue is poured into the upper die 6, so that the iron core sheets 41 and the fan-shaped sheets 42 are fixed together to form the reactor fan-shaped iron core cake.
The invention has the advantages that: the fan-shaped iron core cake is formed by only one process, so that the manufacturing process is reduced, the production time is saved, and the production efficiency is improved; and the iron core cake can be ensured to have no assembly gap, the filling rate of the section of the iron core is high, and the filling rate of the section of the iron core can be effectively ensured to meet the design requirement.
Claims (1)
1. A method for forming a fan-shaped iron core cake of a reactor is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: firstly, manufacturing a reactor fan-shaped iron core cake forming die; the structure of the reactor fan-shaped iron core cake forming die comprises: the lower mould, set up in the positioning die at lower mould top, set up in lower mould top and the cover locate the outside last mould of positioning die and clamp plate, the structure of positioning die includes: a circular inner die positioned in the center, an annular outer die arranged outside the circular inner die in a surrounding way, the circular inner die and the annular outer die are connected together through a plurality of connected plates with the thickness being integral multiple of the thickness of the iron core sheet, all the connected plates divide the area between the circular inner die and the annular outer die into a plurality of large sector areas equally, a plurality of external equal-division notches are uniformly arranged on the outer wall of the circular inner die of each large sector area along the circumferential direction, a plurality of inner equant notches are uniformly arranged on the inner wall of the annular outer die of each large sector area along the circumferential direction, the inner equant notches and the outer equant notches of each large sector area correspond to each other one by one, each pair of corresponding inner equant notches and outer equant notches can be just inserted by positioning plates with the thickness being integral multiple of the thickness of the iron core sheet, and when the positioning plates are inserted into all the corresponding inner equant notches and the outer equant notches in the large sector area, the large sector area is just divided into a plurality of small sector areas for inserting and folding the fan-shaped sheets by each positioning plate;
wherein, the concrete location structure between lower mould and the positioning die does: a positioning block protruding out of the upper surface of the lower die is arranged at the center of the top of the lower die, a positioning groove for inserting the positioning block is arranged at the center of the bottom of the positioning die, and the lower die and the positioning die are matched with each other through the positioning block and the positioning groove to realize central positioning;
wherein, a circle of sealing ring placing groove is arranged on the upper surface of the lower die outside the positioning die, and a sealing ring for sealing a gap between the upper die and the lower die is placed in the sealing ring placing groove;
the center of the positioning die is also provided with a threaded hole vertically penetrating through the positioning die, a central screw rod is in threaded connection with the threaded hole, and when the central screw rod is rotated, the positioning die can move up and down relative to the lower die;
step two: firstly, inserting a positioning plate into each pair of corresponding inner equant notch and outer equant notch in each large sector area of a positioning die placed on a lower die;
step three: the small sector area between every two adjacent positioning plates is respectively inserted and fully overlapped with the sector sheets;
step four: sequentially replacing all positioning plates by using the core sheets to form a plurality of equally divided fan-shaped blocks, and then flattening the tops of the equally divided fan-shaped blocks by using a pressing plate to ensure that the core sheets in the equally divided fan-shaped blocks are flush with the end faces of the fan-shaped sheets;
step five: taking the positioning die out of the upper die, and then sequentially inserting and stacking the iron core sheets at the gap between every two adjacent equal sector blocks; wherein, the positioning die is taken out by rotating the central screw;
step six: and then, glue is poured into the upper die to fix the iron core sheet and the fan-shaped sheet together to form the fan-shaped iron core cake of the reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198122.9A CN110246674B (en) | 2019-03-15 | 2019-03-15 | Forming method of fan-shaped iron core cake of reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198122.9A CN110246674B (en) | 2019-03-15 | 2019-03-15 | Forming method of fan-shaped iron core cake of reactor |
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| Publication Number | Publication Date |
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| CN110246674A CN110246674A (en) | 2019-09-17 |
| CN110246674B true CN110246674B (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2482362A1 (en) * | 1980-05-12 | 1981-11-13 | Alsthom Atlantique | SHUNT INDUCTANCE ELECTRICAL COIL |
| JPS594006A (en) * | 1982-06-30 | 1984-01-10 | Toshiba Corp | Manufacture of radial core |
| EP2551863A4 (en) * | 2010-03-20 | 2015-01-21 | Daido Steel Co Ltd | Reactor and method of manufacture for same |
| CN203260463U (en) * | 2013-04-26 | 2013-10-30 | 浙江科升电力设备有限公司 | Radial magnetic-permeable iron core cake forming machine |
| CN208422662U (en) * | 2018-07-04 | 2019-01-22 | 久利科技（苏州）有限公司 | A kind of glue-injection frock of reactor |
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