CN110645244B - Assembly device and assembly method of overlapping magnetic field system - Google Patents
Assembly device and assembly method of overlapping magnetic field system Download PDFInfo
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- CN110645244B CN110645244B CN201910848757.9A CN201910848757A CN110645244B CN 110645244 B CN110645244 B CN 110645244B CN 201910848757 A CN201910848757 A CN 201910848757A CN 110645244 B CN110645244 B CN 110645244B
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- magnetic field
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- 238000000034 method Methods 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 230000000670 limiting effect Effects 0.000 claims description 31
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention discloses an assembling device of a cascade magnetic field system, which comprises: yoke iron plate, clamp, limit mould and jack; the yoke plate comprises a semicircular bottom surface and a semicircular cylindrical surface, and the bottom edge of the semicircular cylindrical surface is connected to the top of the semicircular bottom surface; the fixture includes: the clamping device comprises a clamping device base, a first bolt, a second bolt and a third bolt, wherein the clamping device base is of a U-shaped structure, a first threaded hole is formed in the top of the clamping device base, a second threaded hole is formed in the side of the clamping device base, and third threaded holes are respectively formed in two end parts of the U-shaped structure; the first bolt is installed at first screw hole, and the second bolt is installed at the second screw hole, and the third bolt is installed at the third screw hole. The invention also discloses an assembling method of the cascade magnetic field system. The invention can reduce the assembly difficulty of the overlapping magnetic field system and improve the efficiency and the assembly safety of the magnet assembled on the yoke iron disc.
Description
Technical Field
The invention relates to a magnet technology, in particular to an assembling device and an assembling method of a cascade magnetic field system.
Background
The magnetic field system is one of important systems and components in the magnetic refrigeration equipment, and the advantages and disadvantages of the magnetic field performance are directly related to the performance of the magnetic refrigeration equipment. The magnetic field performance depends on two aspects, namely design and assembly. Typically, the magnetic field system consists of a yoke and a plurality of magnets, which are assembled in a certain order in a space formed by the yoke. At present, a magnetic field system commonly used by a magnetic refrigerator is a cylindrical magnetic field, and the assembly sequence adopts a central core body and a plurality of sector molds similar to the shape of a magnet during assembly according to the Halbach rotation theory. Since the outer ring of the magnetic field system is the whole circumference, the radial movement of the magnet is limited by the central core body during assembly, and the magnets to be assembled can be extruded together one by directly adopting a plurality of sector dies, so that the assembly is relatively easy.
For the magnet with semicircular outer ring of the magnetic field system, the outer ring loses the limiting effect on the magnet, and the magnet has radial displacement and circumferential and upward displacement in the assembly process, so that if the overlapping magnetic field system is assembled by adopting the existing method for assembling the whole cylindrical magnetic field system, the assembly difficulty is high, the assembly safety coefficient is low, and the efficiency is greatly reduced.
Disclosure of Invention
The invention solves the technical problem of providing an assembling device and an assembling method of a cascade magnetic field system, which can reduce the assembling difficulty of the cascade magnetic field system and improve the efficiency and the assembling safety of assembling magnets on a yoke iron plate.
The technical proposal is as follows:
an assembly apparatus for an overlapping magnetic field system, comprising: yoke iron plate, clamp, limit mould and jack; the yoke plate comprises a semicircular bottom surface and a semicircular cylindrical surface, and the bottom edge of the semicircular cylindrical surface is connected to the top of the semicircular bottom surface; the fixture includes: the clamping device comprises a clamping device base, a first bolt, a second bolt and a third bolt, wherein the clamping device base is of a U-shaped structure, a first threaded hole is formed in the top of the clamping device base, a second threaded hole is formed in the side of the clamping device base, and third threaded holes are respectively formed in two end parts of the U-shaped structure; the first bolt is installed at first screw hole, and the second bolt is installed at the second screw hole, and the third bolt is installed at the third screw hole.
Further, the yoke plate is used for placing the magnet and positioning the magnet; the fixture is made of nonmagnetic stainless steel.
Further, the limiting die is in a hexahedral structure, and the ejector is in a wedge shape.
A method of assembling an overlapping magnetic field system, comprising:
measuring and finding out the central position of the yoke iron disc, and marking the mark; coating an adhesive on the bottom surface of the magnet positioned at the central position and the outer arc surface of the yoke iron disc; bonding the magnet to the yoke plate and aligning the marked center line with the magnet edge line;
the magnets on both sides of the middle magnet are assembled step by step in the order from the middle to the two sides until the outermost magnets are installed, so that all the magnets are bonded to each other and arranged on the yoke disc.
Preferably, the number of magnets is an even number, comprising two magnets in between.
Preferably, two sets of clamping tools and a limiting die and a jacking tool are used for assembling magnets on two sides of a magnet at the middle position, and the method comprises the following steps:
placing the magnets positioned at the side parts of the magnets positioned at the middle positions on the yoke iron plate, wherein the magnets positioned at the side parts are far away from the magnets positioned at the middle positions;
the assembled magnet is clamped by a clamp, a first bolt on the clamp and a second bolt on the side face are adjusted, a certain pretightening force is generated on the magnet 1, and the upward or radial displacement of the magnet is limited;
applying external force to enable the magnet at the side part to be close to the magnet at the middle position, stopping applying the external force, and smearing adhesive on the side surfaces of the two magnets;
installing a limiting die at the adjacent position of the magnet at the middle position, leaving a gap between the magnet at the middle position and the limiting die, and clamping the limiting die at the position by using another clamp;
jacking the jacking tool into a gap between the magnet and the limiting die, so that the assembled magnet gradually approaches the magnet at the middle position until the assembled magnet is tightly attached to the magnet at the middle position;
and after the two magnets are thoroughly adhered tightly, the clamp, the limiting die and the ejector are taken out.
Preferably, two clamping devices are used for assembling the magnet with the two outermost sides, the magnet to be assembled is adhered to the yoke iron plate, and the third bolt at the front end of the clamping device is used for clamping the yoke iron plate along the circumferential direction;
adjusting the position of the other clamp to align the first threaded holes on the two clamps, installing a first bolt and a second bolt of the two clamps, wherein the two clamps share the first bolt, and adjusting the first bolt and the second bolt to enable the magnet to be clung to the inner surface of the yoke iron disc and not to move upwards and radially;
coating adhesive on the side surface of the assembled magnet, and adjusting a first bolt of the clamp until the assembled magnet is tightly attached to the assembled magnet; and (5) removing the two clamps to finish assembly.
The technical effects of the invention include:
(1) The magnets are assembled on the yoke iron plate in the sequence from the middle to the two sides, so that the assembly process is simple and the efficiency is high. The invention adopts the sequence of assembling from the middle to the two sides, thereby greatly reducing the assembling difficulty and improving the assembling efficiency.
(2) The safety is strong. According to the invention, two sets of fixtures, 1 limiting die and a plurality of lifters are adopted, so that the precise control of a plurality of degrees of freedom of the magnet in the assembly process is realized, the magnet can only gradually approach the assembled magnet, the magnet is prevented from being cracked due to repulsive force among the magnets in the assembly process, and the safety coefficient is greatly improved.
Drawings
FIG. 1 is a schematic view of a yoke plate according to the present invention;
FIG. 2 is a schematic view of the structure of the fixture of the present invention;
FIG. 3 is a schematic illustration of the present invention with two magnets in the middle assembled;
FIG. 4 is a schematic view of a fixture of the present invention with a magnet assembled;
fig. 5 is a schematic view of the completed assembly of magnets on a yoke plate in accordance with the present invention.
Detailed Description
The following description fully illustrates the specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
As shown in fig. 1, the yoke disc 2 according to the present invention is schematically structured.
An assembly apparatus for a stacked magnetic field system, comprising: yoke iron plate 2, fixture 3, spacing mould 4 and jack 5.
The yoke plate 2 includes a semicircular bottom surface 21 and a semicylindrical surface 22, and the bottom edge of the semicylindrical surface 22 is connected to the top of the semicircular bottom surface. The yoke disc 2 is used for placing the magnet 1 and positioning the magnet 1.
As shown in fig. 2, a schematic structural view of the fixture 3 according to the present invention is shown.
The fixture 3 includes: the fixture base 31, the first bolt 32, the second bolt 33 and the third bolt 34 are made of nonmagnetic stainless steel, and the main function of the fixture base 31 is to provide support. The first bolt 32, the second bolt 33 and the third bolt 34 are made of nonmagnetic stainless steel, the model of the first bolt 32 and the second bolt 33 is M12, the model of the third bolt 34 is M8,
the clamp base 31 has a U-shaped structure, a first threaded hole 35 is provided at the top, a second threaded hole 36 is provided at the side, and third threaded holes 37 are provided at both end portions of the U-shaped structure, respectively. The first bolt 32 is mounted in a first threaded hole 35, the second bolt 33 is mounted in a second threaded hole 36, and the third bolt 34 is mounted in a third threaded hole 37.
The primary function of the first bolt 32 and the second bolt 33 is to squeeze the magnet 1 during assembly of the magnet and to limit the position of the magnet 1. Wherein the first bolt 32 restricts the position of the magnet 1 to move up and down; the second bolts 33 restrict and adjust the position of the magnet 1 in the circumferential direction; the third bolt 34 restricts the entire jig position and prevents the jig 3 from moving in position during assembly of the magnet 1. The lower portion of the first bolt 32 has no bolt hole. The first bolt 32 is positioned at the left side of the top center of the clamp 1; the second bolt 33 is located in a position offset down the centre of the side of the clamp. The third bolt 34 has a length slightly smaller than the entire height of the jig and is positioned on the right side of the top of the jig base 31.
The limiting die 4 is in a hexahedral structure, and the ejector 5 is in a wedge shape.
The assembling method of the cascade magnetic field system specifically comprises the following steps:
step 1: measuring and finding out the central position of the yoke iron plate 2, and marking; coating an adhesive on the bottom surface of the magnet 1 positioned at the center and the outer arc surface of the yoke plate 2; bonding the magnet 1 to the yoke plate 2 and aligning the marked center line with the magnet edge line;
one of the two magnets 1 located in the middle (the right one of the two is taken in this embodiment) is taken and bonded to the yoke disc 2. The number of magnets is even.
As shown in fig. 3, a schematic view of the present invention is provided with two magnets 1 in the middle; as shown in fig. 4, a schematic view of the clamping apparatus 3 to be clamped by the assembled magnet 1 in the present invention is shown.
The assembling method of the overlapping magnetic field system is to assemble a plurality of magnets 1 on a yoke plate 2, and the magnets 1 are assembled on the yoke plate 2 by adopting a fixture 3, a limiting die 4 and a jacking tool 5 according to a certain sequence. Two sets of clamping tools 3 and 1 aluminum limiting die 4 are adopted, a plurality of jacking tools 5 are arranged, and the clamping tools 3 are made of stainless steel.
The clamping device 3 is used for clamping the magnet 1 and the limiting die 4 in the assembly process, the limiting die 4 is used for limiting the circumferential movement of the assembled magnet 1 at a specific position, and the jacking device 5 is used for pressing the assembled magnet 1 to be tightly attached to the assembled magnet 1, so that the assembled magnet 1 is assembled.
Step 2: the magnets 1 on both sides of the intermediate magnet 1 are assembled step by step in the order from the middle to the both sides until the outermost magnets 1 are mounted, so that all the magnets 1 are bonded to each other and arranged on the yoke plate 2.
Two sets of clamping tools 3,1 limiting mould 4 and jacking tools 5 are used for assembling the magnets 1 adjacent to two sides of the assembled middle magnet 1.
Step 21: the magnet 1 positioned on the left side of the middle magnet 1 is placed on the yoke plate 2, and the magnet 1 on the left side is positioned far from the middle magnet 1;
because a certain repulsive force exists between the two magnetized magnets 1, the two magnets 1 are far away so as to ensure the safety. The application of an external force moves the magnets 2 to a position where the repulsive force between the two magnets 2 is balanced.
Step 22: the assembled magnet 1 is clamped by the clamp 3, and the first bolt 32 on the clamp 3 and the second bolt 33 on the side face are adjusted to generate certain pretightening force on the magnet 1, so that the upward or radial displacement of the magnet 1 is limited;
step 23: applying an external force to enable the magnet 1 on the left side to be close to the magnet 1 in the middle until the magnet 1 is at a certain position, stopping applying the external force, and smearing an adhesive on the side surfaces of the two magnets 1;
step 24: a limiting die 4 is arranged at the adjacent position of the middle magnet 1, a gap is reserved between the middle magnet 1 and the limiting die 4, and the limiting die 4 is clamped at the position by another clamp 3;
step 25: jacking the jacking tool 5 into a gap between the magnet 1 and the limiting die 4, so that the assembled magnet 1 gradually approaches the magnet 1 at the middle position until the assembled magnet 1 is tightly attached to the magnet 1 at the middle position;
step 26: after the two magnets 1 are thoroughly adhered tightly, the clamp 3, the limiting die 4 and the ejector 5 are removed;
step 27: the other magnets 1 are assembled step by step in the order from the middle to the two sides until the two magnets 1 on the left and right outermost sides are assembled.
1. Two clamps 3 are used for assembling the magnet 1 with the two outermost sides, the magnet 1 to be assembled is adhered to the yoke disc 2, and the third bolt 34 at the front end of the clamps 3 clamps the yoke disc 2 along the circumferential direction;
2. the position of the other clamp 3 is adjusted so that the first threaded holes 35 on the two clamps 3 are aligned, the first bolt 32 and the second bolt 33 of the two clamps 3 are mounted, the two clamps 3 share the first bolt 32, and the first bolt 32 and the second bolt 33 are adjusted so that the magnet 1 is closely attached to the inner surface of the yoke disc 2 and cannot move upward and in the radial direction.
3. Applying an adhesive to the side of the assembled magnet 1 and adjusting the first bolt 32 of the clamp 3 until the assembled magnet 1 is tightly attached to the assembled magnet 1;
4. the two clamps 3 are removed to complete the assembly.
As shown in fig. 5, a schematic view of the magnet 1 assembled on the yoke plate 2 in the present invention is completed.
The invention adopts the fixture 3, the limit die 4 and the ejector 5, and thoroughly solves the problems that the overlapping magnetic field system is difficult to assemble, the assembly safety coefficient is low and the efficiency is low.
The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (5)
1. An assembly apparatus for an overlapping magnetic field system, comprising: yoke iron plate, clamp, limit mould and jack; the yoke plate is used for placing the magnet and positioning the magnet and comprises a semicircular bottom surface and a semicircular cylindrical surface, and the bottom edge of the semicircular cylindrical surface is connected to the top of the semicircular bottom surface; the fixture is used for chucking magnet and spacing mould at the assembly process, and the fixture includes: the clamping device comprises a clamping device base, a first bolt, a second bolt and a third bolt, wherein the clamping device base is of a U-shaped structure, a first threaded hole is formed in the top of the clamping device base, a second threaded hole is formed in the side of the clamping device base, and third threaded holes are respectively formed in two end parts of the U-shaped structure; the first bolt is arranged in the first threaded hole, the second bolt is arranged in the second threaded hole, and the third bolt is arranged in the third threaded hole; the limiting die is used for limiting the circumferential movement of the assembled magnet, and the ejector is used for pressing the assembled magnet against the assembled magnet.
2. The assembly of a stacked magnetic field system as recited in claim 1, wherein the fixture is made of nonmagnetic stainless steel.
3. The apparatus for assembling a magnetic field cascade system of claim 1, wherein the limiting die has a hexahedral structure and the jack has a wedge shape.
4. A method of assembling an overlapping magnetic field system, comprising:
measuring and finding out the central position of the yoke iron disc, and marking the mark; coating an adhesive on the bottom surface of the magnet positioned at the central position and the outer arc surface of the yoke iron disc; bonding the magnet to the yoke plate and aligning the marked center line with the magnet edge line;
gradually assembling the magnets at two sides of the middle magnet according to the sequence from the middle to the two sides until the magnet at the outermost side is installed, and mutually bonding and arranging all the magnets on the yoke iron disc; two sets of clamping tools, a limiting die and a jacking tool are used for assembling magnets on two sides of a magnet at the middle position, and the two clamping tools comprise: placing the magnets positioned at the side parts of the magnets positioned at the middle positions on the yoke iron plate, wherein the magnets positioned at the side parts are far away from the magnets positioned at the middle positions; the assembled magnet is clamped by a clamp, a first bolt on the clamp and a second bolt on the side face are adjusted, a certain pretightening force is generated on the magnet, and the upward or radial displacement of the magnet is limited; applying external force to enable the magnet at the side part to be close to the magnet at the middle position, stopping applying the external force, and smearing adhesive on the side surfaces of the two magnets; installing a limiting die at the adjacent position of the magnet at the middle position, leaving a gap between the magnet at the middle position and the limiting die, and clamping the limiting die at the position by using another clamp; jacking the jacking tool into a gap between the magnet and the limiting die, so that the assembled magnet gradually approaches the magnet at the middle position until the assembled magnet is tightly attached to the magnet at the middle position; after the two magnets are thoroughly adhered tightly, the clamp, the limiting die and the ejector are taken out; using two clamps to assemble the magnet with two outermost sides, adhering the magnet to be assembled to the yoke iron disc, and clamping the yoke iron disc by a third bolt at the front end of the clamp along the circumferential direction; adjusting the position of the other clamp to align the first threaded holes on the two clamps, installing a first bolt and a second bolt of the two clamps, wherein the two clamps share the first bolt, and adjusting the first bolt and the second bolt to enable the magnet to be clung to the inner surface of the yoke iron disc and not to move upwards and radially; coating adhesive on the side surface of the assembled magnet, and adjusting a first bolt of the clamp until the assembled magnet is tightly attached to the assembled magnet; and (5) removing the two clamps to finish assembly.
5. The method of assembling a magnetic field cascade system of claim 4 wherein the number of magnets is an even number and comprises two magnets positioned in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848757.9A CN110645244B (en) | 2019-09-09 | 2019-09-09 | Assembly device and assembly method of overlapping magnetic field system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848757.9A CN110645244B (en) | 2019-09-09 | 2019-09-09 | Assembly device and assembly method of overlapping magnetic field system |
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| Publication Number | Publication Date |
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| CN110645244A CN110645244A (en) | 2020-01-03 |
| CN110645244B true CN110645244B (en) | 2024-04-02 |
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| CN201910848757.9A Active CN110645244B (en) | 2019-09-09 | 2019-09-09 | Assembly device and assembly method of overlapping magnetic field system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133516B (en) * | 2020-09-15 | 2021-10-08 | 宁波韵升股份有限公司 | Spliced magnetic steel, tool and assembly method |
| CN112594963A (en) * | 2020-12-31 | 2021-04-02 | 包头稀土研究院 | Cylindrical array type magnet for room temperature magnetic refrigerator and assembling method thereof |
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| US4524439A (en) * | 1980-04-08 | 1985-06-18 | Victor Company Of Japan, Limited | Electromagnetic pickup cartridge with flux sensors mounted above moving magnet |
| SU1693282A1 (en) * | 1989-01-02 | 1991-11-23 | Предприятие П/Я А-7460 | Method and device for glueing thin parts |
| CN101913132A (en) * | 2010-08-16 | 2010-12-15 | 河南理工大学 | Rectangular magnetic steel homopolar extrusion and heteropolar interval assembly process and frock clamp |
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