CN110136919B - Axial multipole magnetizing apparatus - Google Patents
Axial multipole magnetizing apparatus Download PDFInfo
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- CN110136919B CN110136919B CN201910498969.9A CN201910498969A CN110136919B CN 110136919 B CN110136919 B CN 110136919B CN 201910498969 A CN201910498969 A CN 201910498969A CN 110136919 B CN110136919 B CN 110136919B
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- 230000005405 multipole Effects 0.000 title claims abstract description 40
- 230000007306 turnover Effects 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 229910052742 iron Inorganic materials 0.000 claims description 22
- 239000003351 stiffener Substances 0.000 claims 6
- 230000005389 magnetism Effects 0.000 description 13
- 238000009434 installation Methods 0.000 description 12
- 230000002787 reinforcement Effects 0.000 description 10
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000007723 die pressing method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses an axial multipole magnetizing device, which comprises a device body and a magnetizing assembly, wherein the magnetizing assembly comprises a first magnetizing coil and a second magnetizing coil, the first magnetizing coil is arranged on the device body and comprises a first coil main body and a first conductive end, the first coil main body extends from the first conductive end to two sides respectively, the first coil main body comprises a plurality of first coil units arranged on a circumference, the first coil main body is provided with a first inner edge, the first coil units comprise a first inner turnover part and a first conductive part, the first inner turnover part is formed on the first inner edge, the first magnetizing coil forms an axial direction perpendicular to a plane on which the circumference is arranged, and the first inner turnover part and the first conductive part are arranged at different heights in the axial direction.
Description
Technical Field
The present invention relates to a magnetizing apparatus, and more particularly to an axial multipole magnetizing apparatus.
Background
Magnets are widely used in many fields such as motors. In particular, the uniformity of the poles of annular multipole magnets directly affects their utility. In another aspect, the present annular multipole magnet is formed from an annular workpiece that is magnetized by a magnetizing apparatus.
For annular workpieces, the width between the inner edge and the outer edge of the annular workpiece P is narrower, and when the workpiece is magnetized by the magnetizer, the workpiece can be magnetized by directly utilizing a magnetizing head of the magnetizer. In particular, the magnetizing heads of the prior art for axially magnetizing an annular workpiece generally comprise a ring-shaped magnetizing coil, which is adapted to magnetize only the annular workpiece having a narrow width between an inner edge and an outer edge, because after axial magnetizing is required for the annular workpiece having a narrow width between the inner edge and the outer edge, magnetic poles are extended to the inner edge and the outer edge of the annular workpiece P without shielding a predetermined distance portion of the annular workpiece P from the inner edge.
However, for some annular workpieces P that are wider between the inner and outer edges, since it is required that the poles do not flood the inner edge when magnetizing such annular workpiece P, it is required that the magnetizing head should shield a predetermined region of the annular workpiece P when magnetizing. The dimensional requirements for the annular workpiece P, as shown in fig. 1, are fixed, whereas when the annular workpiece P is axially magnetized, only the magnetic poles need to be filled at the boundary line C between the outer edge a and the edge at a predetermined distance from the inner edge B. In other words, when magnetizing the annular workpiece P, a portion between the inner edge B of the annular workpiece P and the boundary line C needs to be shielded so as to avoid that the portion between the inner edge B of the annular workpiece P and the boundary line C is magnetized, but since the existing magnetizing coils of the magnetizer for axially magnetizing the annular workpiece are uniformly distributed up and down, when axially magnetizing the annular workpiece, a stronger magnetic pole is formed at the portion between the inner edge B of the annular workpiece P and the boundary line C, thereby affecting the quality of the entire annular workpiece, and experiments show that when magnetizing the annular workpiece by the magnetizing coils in the prior art, the portion between the inner edge B and the boundary line C forms a magnetic pole having a magnetic property substantially above 500 GS.
Disclosure of Invention
It is an object of the present invention to provide an axial multipole magnetizing apparatus capable of forming weaker magnetism in a shielding portion when magnetizing an annular workpiece requiring the formation of the shielding portion between an inner edge and a boundary line, so as to avoid influence of magnetism formed in the shielding portion on quality of the annular workpiece.
It is another object of the present invention to provide an axial multipole magnetizing apparatus capable of forming magnetism substantially lower than PGS at a shielding portion when magnetizing a ring-shaped workpiece to be formed with the shielding portion between an inner edge and a boundary line, so that influence of magnetism of the shielding portion of the ring-shaped workpiece magnetized by the axial multipole magnetizing apparatus on a magnetic field of the entire ring-shaped workpiece is reduced.
It is another object of the present invention to provide an axial multipole magnetizing apparatus, wherein the axial multipole magnetizing apparatus comprises a pair of magnetizing coils, wherein each of the magnetizing coils radially and uniformly forms a plurality of magnetizing coil units, wherein each of the magnetizing coil units forms a turnover and a radial at an inner edge, wherein the turnover and the radial are respectively disposed at different heights along an axial direction of the magnetizing coils.
It is another object of the present invention to provide an axial multipole magnetizing apparatus, wherein the axial multipole magnetizing apparatus comprises a pair of magnetizing coils, wherein each of the magnetizing coils radially and uniformly forms a plurality of magnetizing coil units, wherein each of the magnetizing coil units forms a turnover and a radial at an outer edge, wherein the turnover and the radial are respectively disposed at different heights along an axial direction of the magnetizing coils.
To achieve at least one of the above objects, the present invention provides an axial multipole magnetizing apparatus, wherein the axial multipole magnetizing apparatus comprises:
an equipment body; and
a magnetizing assembly, wherein the magnetizing assembly comprises:
a first magnetizing coil, wherein the first magnetizing coil is disposed on the apparatus body, wherein the first magnetizing coil comprises a first coil main body and a first conductive end, wherein the first coil main body extends from the first conductive end to two sides, respectively, wherein the first coil main body comprises a plurality of first coil units arranged on a circumference, wherein the first coil main body has a first inner edge, wherein the first coil unit comprises a first inner flipping portion and a first conductive portion, wherein the first inner flipping portion is formed on the first inner edge, wherein the first magnetizing coil forms an axial direction perpendicular to a plane in which the circumference is located, wherein the first inner flipping portion and the first conductive portion are arranged at different heights in the axial direction; and
the second magnetizing coil is arranged on the equipment body in a coaxial mode with the first magnetizing coil and can be combined with the first magnetizing coil.
According to an embodiment of the present invention, the second magnetizing coil includes a second coil body and a second conductive end, wherein the second coil body extends from the second conductive end to both sides, respectively, wherein the second coil body includes a plurality of second coil units arranged on a circumference, wherein the second coil body has a second inner edge, wherein the second coil unit includes a second inner flip portion and a second conductive portion, wherein the second inner flip portion is formed at the second inner edge, wherein the second coil unit includes a second inner flip portion and a second conductive portion, wherein the second inner flip portion and the second conductive portion are arranged at different heights in the axial direction.
According to an embodiment of the present invention, the first coil body forms a first outer edge opposite to the first inner edge, wherein the first conductive part includes a first outer turn-over part, a first inner radial connecting part, and a first outer radial connecting part, the first outer turn-over part being disposed at the first outer edge, the first inner turn-over part and the first outer turn-over part being integrally connected to both ends of the first inner radial connecting part, respectively, the first inner turn-over part of one of the first coil units being connected to the first outer turn-over part of the other adjacent first coil unit through the first outer radial connecting part, wherein the first inner turn-over part and the first outer turn-over part are disposed at different heights in the axial direction from the first inner radial connecting part and the first outer radial connecting part.
According to an embodiment of the present invention, the second coil body forms a second outer edge opposite to the second inner edge, wherein the second conductive part includes a second outer turnover part, a second inner radial connecting part, and a second outer radial connecting part, the second outer turnover part being disposed at the second outer edge, the second inner turnover part and the second outer turnover part being integrally connected to both ends of the second inner radial connecting part, respectively, the second inner turnover part of one of the second coil units being connected to the second outer turnover part of the adjacent other of the second coil units through the second outer radial connecting part, wherein the second inner turnover part and the second outer turnover part are disposed at different heights in the axial direction from the second inner radial connecting part and the second outer radial connecting part.
According to an embodiment of the invention, a distance between the first inner radial connection and the first outer radial connection and a distance between the first outer radial connection of the first coil unit and the first inner radial connection of an adjacent further one of the first coil units may be adjusted, wherein a distance between the second inner radial connection and the second outer radial connection and a distance between the second outer radial connection of the second coil unit and the second inner radial connection of an adjacent further one of the second coil units may be adjusted.
According to an embodiment of the invention, a first installation space is formed between the first inner radial connection portion and the first outer radial connection portion of the first coil unit, wherein a second installation space is formed between the first outer radial connection portion of the first coil unit and the first inner radial connection portion of the adjacent further first coil unit, wherein a third installation space is formed between the second inner radial connection portion and the second outer radial connection portion of the second coil unit, wherein a fourth installation space is formed between the second outer radial connection portion of the second coil unit and the second inner radial connection portion of the adjacent further second coil unit, wherein the magnetizing assembly comprises a first reinforcement and a second reinforcement, wherein the first reinforcement comprises a first iron block, wherein the second reinforcement comprises a second iron block, wherein the first iron block is arranged in the first installation space and the second installation space, wherein the second iron block is arranged in the third installation space and the fourth installation space.
According to an embodiment of the invention, the first reinforcement comprises a first mounting body, wherein the first iron block is arranged on a circumference formed by the first mounting body, wherein the second reinforcement comprises a second mounting body, wherein the second iron block is arranged on a circumference formed by the second mounting body.
According to one embodiment of the invention, the magnetizing assembly comprises a first inner shield and a second inner shield, wherein the first inner shield is mounted to the first inner edge and the second inner shield is mounted to the second inner edge.
According to an embodiment of the present invention, the magnetizing assembly further comprises a first outer shield mounted to the first outer edge of the first magnetizing coil and a second outer shield mounted to the second outer edge of the second magnetizing coil.
According to an embodiment of the present invention, the axial multipole magnetizing apparatus further comprises a lifting assembly, wherein the first magnetizing coil is engaged with and separated from the second magnetizing coil in the axial direction formed by the magnetizing coils by the lifting assembly, wherein the axial magnetizing apparatus comprises a loading assembly and a driving element, the loading assembly forms a loading opening for loading an annular workpiece, the loading assembly comprises a loading plate, wherein the loading plate forms the loading opening, and the loading plate is extended between the first magnetizing coil and the second magnetizing coil in a manner of being capable of sliding in a direction perpendicular to the axial direction formed by the magnetizing coils by the driving element, and is positioned between the first magnetizing coil and the second magnetizing coil in a lockable manner.
Drawings
Fig. 1 shows a top view of an annular workpiece.
Fig. 2 shows a perspective view of an axial multipole magnetizing apparatus of the invention in the magnetized state.
Fig. 3 shows a perspective view of the axial multipole magnetizing apparatus of the present invention in an un-magnetized state.
Fig. 4 shows a perspective view of the magnetizing assembly of the axial multipole magnetizing apparatus of the present invention.
Fig. 5 shows an exploded view of the structure of the magnetizing assembly portion of the axial multipole magnetizing apparatus of the present invention.
Fig. 6 shows an exploded view of another part of the structure of the magnetizing assembly of the axial multipole magnetizing apparatus of the present invention.
Fig. 7 shows a perspective view of a first coil unit in the axial multipole magnetizing apparatus of the present invention.
Fig. 8 shows a perspective view of a second coil unit in the axial multipole magnetizing apparatus according to the present invention.
Detailed Description
The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.
An axial multipole magnetizing apparatus according to a preferred embodiment of the present invention, which is capable of axially magnetizing an annular workpiece P and of forming a lower magnetism in a shielding portion of the annular workpiece P, will be described in detail below with reference to fig. 1 to 8.
Specifically, the axial multipole magnetizing apparatus 100 includes an apparatus body 10 and a magnetizing assembly 20, wherein the magnetizing assembly 20 is disposed on the apparatus body 10. The magnetizing assembly 20 includes a pair of magnetizing coils 21, specifically a first magnetizing coil 21a and a second magnetizing coil 21b, wherein the first magnetizing coil 21a and the second magnetizing coil 21b are respectively disposed on the device body 10. The first magnetizing coil 21a and the second magnetizing coil 21b are disposed at a predetermined distance in the axial direction of the magnetizing coil 21.
The first magnetizing coil 21a is provided to the apparatus body 10 so as to be capable of being aligned with the second magnetizing coil 21b. As will be appreciated by those skilled in the art, after the annular work piece P is placed between the first magnetizing coil 21a and the second magnetizing coil 21b, the annular work piece P is clamped between the first magnetizing coil 21a and the second magnetizing coil 21b by aligning the first magnetizing coil 21a and the second magnetizing coil 21b. Subsequently, by charging and discharging the first magnetizing coil 21a and the second magnetizing coil 21b, respectively, the ring-shaped work P can be magnetized by magnetization.
In the present invention, the first magnetizing coil 21a includes a first coil main body 211a and a first conductive end 212a. The first coil main body 211a extends from the first conductive end 212a to both sides, respectively. The first coil main body 211a includes a plurality of first coil units 2111a. The first coil body 211a has a first inner edge 21101a and a first outer edge 21102a.
In the present invention, a plurality of the first coil units 2111a are arranged on a circumference in a predetermined manner to form the first coil main body 211a. Each of the first coil units 2111a includes a first inner flip portion 21111a and a first conductive portion 21112a. The first inner inversion portion 21111a is electrically connected to the first conductive portion 21112a and the first conductive portion 21112a of the adjacent other first coil unit 2111a. Further, the first inner inversion portion 21111a is provided at the first inner edge 21101a, and the first inner inversion portion 21111a and the first conductive portion 21112a are provided at different heights in the axial direction of the first magnetizing coil 21a, so that the magnetism of the shielding portion of the annular workpiece P is weak when the annular workpiece is magnetized by the first magnetizing coil 21a.
Specifically, the first conductive portion 21112a includes a first out-turned portion 211121a, a first inner radial connecting portion 211122a, and a first outer radial connecting portion 211123a. The first inner inversion portion 21111a is provided at the first inner edge 21101a of the first magnetizing coil 21a. The first out-turned portion 21111a is provided at the first outer edge 21102a. The first inside-turned portion 21111a and the first outside-turned portion 211121a are integrally connected to both ends of the first inside-radial connecting portion 211122a, respectively, and the first outside-radial connecting portion 21111a is used to connect the first inside-turned portion 21111a of one of the first coil units 2111a and the first outside-turned portion 211121a of the other of the first coil units 2111a adjacently.
In the present invention, the first inner radial connection portion 211122a and the first outer radial connection portion 211123a are disposed at the same height in the axial direction of the first magnetizing coil 21a. The first inner turn-over portion 21111a and the first outer turn-over portion 211121a are provided at different heights in the axial direction of the first magnetizing coil 21a, so that the magnetism of the shielding portion of the annular workpiece P is weak when the annular workpiece is magnetized by the first magnetizing coil 21a.
Further, the first inner turn portion 21111a and the first outer turn portion 211121a of the first coil unit 2111a are electrically connected to the adjacent other first coil unit 2111a in such a manner as to be arranged offset on the circumference formed by the plurality of first coil units 2111a.
Preferably, in the present invention, a first installation space 211101a is formed between the first inner radial connection portion 211122a and the first outer radial connection portion 211123a in the same first coil unit 2111a. A second installation space 211102a is formed between the first outer radial connection portion 211123a of one of the first coil units 2111a and the first inner radial connection portion 211122a of the adjacent other of the first coil units 2111a.
As will be appreciated by those skilled in the art, by adjusting the spacing between the first inner radial connecting portion 211122a and the first outer radial connecting portion 211123a in the first coil unit 2111a and the spacing between the first outer radial connecting portion 211123a of one of the first coil units 2111a and the first inner radial connecting portion 211122a of the adjacent other of the first coil units 2111a, the width of each magnetic pole formed on the annular workpiece P by the first magnetizing coil 21a can be adjusted.
It should be noted that, in the present invention, the first outer folded portion 211121a of the first conductive portion 21112a forms a first clamping opening 2111201a, wherein the first clamping opening 211201a is in communication with the first mounting space 211101a. In addition, the first inner fold 21111a forms a first attachment opening 2111101a.
The magnetizing assembly 20 further comprises a first reinforcing member 22a, wherein the first reinforcing member 22a comprises a plurality of first iron blocks 221a, and the plurality of first iron blocks 221a are disposed between the first mounting space 211101a and the second mounting space 211102a to enhance the magnetism of the annular workpiece P after being magnetized by the magnetizing assembly 20.
The first reinforcement 22a further includes a first mounting body 222a, wherein the plurality of first iron pieces 221a are fixed to one circumference of the first mounting body 222 a. When the first reinforcement 22a is butt-mounted with the first magnetizing coil 21a, the first iron pieces 221a are respectively inserted into the first and second mounting spaces 211101a and 211102a in an insulated manner.
It should be noted that, in the present invention, since the first iron pieces 221a mounted in the first mounting space 211101a and the second mounting space 211102a are respectively engaged with the first clamping opening 2111201a and the first mounting opening 2111101a, the first magnetizing coil 21a is not easily deformed after long-term use, so that the space between the first inner radial connecting portion 211122a and the first outer radial connecting portion 211123a in the first coil unit 2111a and the space between the first outer radial connecting portion 211123a of one first coil unit 21111a and the first inner radial connecting portion 211122a of the adjacent other first coil unit 2111a are kept unchanged, and the plurality of magnetic poles formed in the axial direction of the annular workpiece P after being magnetized via the magnetizing assembly 20 can be uniformly distributed.
In the present invention, the second magnetizing coil 21b includes a second coil body 211b and a second conductive terminal 212b. The second coil body 211b extends from both sides of the second conductive end 212b, respectively. The second coil body 211b includes a plurality of second coil units 2111b. The second coil body 211b has a second inner edge 21101b and a second outer edge 21102b.
In the present invention, a plurality of the second coil units 2111b are arranged on a circumference in a predetermined manner to form the second coil body 211b. Each of the second coil units 2111b includes a second inner flip portion 21111b and a second conductive portion 21112b. The second inside-flipping portion 21111b is electrically connected to the second conductive portion 21112b and the second conductive portion 21112b of the adjacent other of the second coil units 2111b. Further, the second inner inversion portion 21111b is provided at the second inner edge 21101b, and the second inner inversion portion 21111b and the second conductive portion 21112b are provided at different heights in the axial direction of the second magnetizing coil 21b, so that the magnetism of the shielding portion of the annular workpiece P is weak when the annular workpiece is magnetized by the second magnetizing coil 21b.
Specifically, the second conductive portion 21112b includes a second outer fold 211121b, a second inner radial connection 211122b, and a second outer radial connection 211123b. The second inner inversion portion 21111b is provided at the second inner edge 21101b of the second magnetizing coil 21b. The second out-turned portion 21111b is provided at the second outer edge 21102b. The second inside-turned portion 21111b and the second outside-turned portion 211121b are integrally connected to both ends of the second inside-radial connecting portion 211122b, respectively, and the second outside-radial connecting portion 21111b is used to connect the second inside-turned portion 21111b of one of the second coil units 2111b and the second outside-turned portion 211121b of the other of the second coil units 2111b adjacently.
In the present invention, the second inner radial connection portion 211122b and the second outer radial connection portion 211123b are disposed at the same height in the axial direction of the second magnetizing coil 21b. The second inside-turning portion 21111b and the second outside-turning portion 211121b are provided at different heights in the axial direction of the second magnetizing coil 21b, so that the magnetism of the shielding portion of the ring-shaped workpiece P is weak when the ring-shaped workpiece is magnetized by the second magnetizing coil 21b.
Further, the second inner turn portion 21111b and the second outer turn portion 211121b of the second coil unit 2111b are electrically connected to the adjacent other second coil unit 2111b in a staggered arrangement on the circumference formed by the plurality of second coil units 2111b.
Preferably, in the present invention, a third installation space 211101b is formed between the second inner radial connection portion 211122b and the second outer radial connection portion 211123b in the same second coil unit 2111b. A fourth installation space 211102b is formed between the second outer radial connection portion 211123b of one of the second coil units 2111b and the second inner radial connection portion 211122b of the adjacent other of the second coil units 2111b.
As will be appreciated by those skilled in the art, by adjusting the spacing between the second inner radial connecting portion 211122b and the second outer radial connecting portion 211123b in the second coil unit 2111b and the spacing between the second outer radial connecting portion 211123b of one of the second coil units 2111b and the second inner radial connecting portion 211122b of the adjacent other of the second coil units 2111b, the width of each magnetic pole formed on the annular workpiece P by the second magnetizing coil 21b can be adjusted.
It should be noted that, in the present invention, the second outer folded portion 211121b of the second conductive portion 21112b forms a second clamping opening 2111201b, wherein the second clamping opening 211201b is in communication with the third mounting space 211101b. In addition, the second inside-turned portion 21111b forms a second mounting opening 2111101b.
The magnetizing assembly 20 further comprises a second reinforcing member 22b, wherein the second reinforcing member 22b comprises a plurality of second iron pieces 221b, and the plurality of second iron pieces 221b are disposed between the third mounting space 211101b and the fourth mounting space 211102b to enhance the magnetism of the annular workpiece P magnetized by the magnetizing assembly 20.
The second reinforcement 22b further includes a second mounting body 222b, wherein a plurality of the second iron pieces 221b are fixed to one circumference of the second mounting body 222 b. When the second reinforcement 22b is butt-mounted with the second magnetizing coil 21b, the second iron pieces 221b are respectively inserted into the third mounting space 211101b and the fourth mounting space 211102b in an insulated manner.
It should be noted that, in the present invention, since the second iron pieces 221b mounted in the third mounting space 211101b and the fourth mounting space 211102b are respectively engaged with the second clamping opening 2111201b and the second mounting opening 2111101b, the second magnetizing coil 21b is not easily deformed even after long-term use, so that the space between the second inner radial connecting portion 211122b and the second outer radial connecting portion 211123b in the second coil unit 2111b and the space between the second outer radial connecting portion 211123b of one of the second coil units 21111b and the second inner radial connecting portion 211122b of the adjacent other of the second coil units 2111b are kept unchanged, and the plurality of magnetic poles formed in the axial direction of the annular workpiece P after being magnetized via the magnetizing assembly 20 can be uniformly distributed.
The magnetizing assembly 20 further comprises two inner shields 23, specifically a first inner shield 23a and a second inner shield 23b. The first inner shield 23a is mounted to the first inner edge 21101a of the first magnetizing coil 21a. The second inner shield 23b is mounted to the second inner edge 21101b of the second magnetizing coil 21b.
The magnetizing assembly 20 further includes two outer shields 24, specifically a first outer shield 24a and a second outer shield 24b. The first outer shield 24a is mounted to the first outer edge 21102a of the first magnetizing coil 21a. The second outer shield 24b is mounted to the second outer edge 21102b of the second magnetizing coil 21b.
As can be appreciated by those skilled in the art, by providing the first inner shield 23a and the second inner shield 23b at the first inner edge 21101a of the first magnetizing coil 21a and the second inner edge 21101b of the second magnetizing coil 21b, respectively, the shielding portion of the annular workpiece P is correspondingly installed between the first shield 23a and the second inner shield 23b when the annular workpiece P having a large width is demagnetized, so that a certain shielding effect can be exerted on the magnetic field formed by the first magnetizing coil 21a and the second magnetizing coil 21b, thereby reducing the magnetism of the shielding portion of the annular workpiece P.
It is also understood by those skilled in the art that by providing the first outer shield 24a and the second outer shield 24b at the first outer edge 21102a of the first magnetizing coil 21a and the second outer edge 21102b of the second magnetizing coil 21b, respectively, the shielding portion of the annular workpiece P is correspondingly installed between the first shield 24a and the second outer shield 24b when the annular workpiece P having a large width is demagnetized, thereby playing a certain shielding role against an external magnetic field and reducing the magnetism of the shielding portion of the annular workpiece P.
Further, the axial multipole magnetizing apparatus 100 further comprises a lifting assembly 30, wherein the first magnetizing coil 21a is engaged with and separated from the second magnetizing coil 21b in the axial direction formed by the magnetizing coil 21 by the lifting assembly 30.
Specifically, the lifting assembly 30 includes a molding plate 31, a pair of guide posts 32, and a driving member 33, wherein the molding plate 31 is liftably disposed on the guide posts 32 by the driving member 33. The guide post 32 is erected on the apparatus body 10. The first magnetizing coil 21a is fixed to the lower bottom surface of the molding plate 31. When the die pressing plate 31 is driven by the driving member 33 to rise along the axis formed by the magnetizing coil 21, the first and second magnetizing coils 21a and 21b are separated from each other. When the die pressing plate 31 is driven by the driving member 33 to descend in the axial direction in which the magnetizing coil 21 is formed, the first magnetizing coil 21a is brought into contact with the second magnetizing coil 21b, so that the ring-shaped workpiece P located between the first magnetizing coil 21a and the second magnetizing coil 21b is pressed in the axial direction in which the magnetizing coil 21 is formed, and thus the ring-shaped workpiece P is stably magnetized.
It is understood that the drive assembly 33 may be implemented to include a cylinder 331 and at least one pneumatic valve 332.
Still further, the axial multipole magnetizing apparatus 100 comprises a carrier assembly 40. The loading assembly 40 forms a loading opening 401 for loading the annular workpiece P. The loading assembly 40 includes a loading plate 41, wherein the loading plate 41 forms the loading opening 401.
The loading assembly 40 further comprises a driving element 42, wherein the loading plate 41 is slidably inserted between the first magnetizing coil 21a and the second magnetizing coil 21b by the driving element 42 in a direction perpendicular to the axial direction formed by the magnetizing coils 21, and is lockably positioned between the first magnetizing coil 21a and the second magnetizing coil 21b. When the loading plate 41 is driven by the driving member 42 to extend between the first magnetizing coil 21a and the second magnetizing coil 21b and is locked, the annular workpiece P loaded in the loading port 401 is stably held between the first magnetizing coil 21a and the second magnetizing coil 21b. After the first magnetizing coil 21a and the second magnetizing coil 21b complete magnetizing the annular workpiece P, the loading portion 41 may be driven to slide in opposite directions, so as to facilitate an operator to take out the annular member P after magnetizing from the loading opening 401.
Furthermore, the axial multipole magnetizing apparatus 100 comprises a control assembly 50, wherein the control assembly 50 comprises a controller 51 and a plurality of operating assemblies 52, wherein the magnetizing assembly 20, the driving assembly 33 and the driving element 42 are controllably connected to the controller 51, respectively. The operating assembly 52 is electrically connected to the controller 51 such that an operator can control the operation of the magnetizing assembly 20, the driving assembly 33 and the driving element 42 by operating the operating assembly 52.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.
Claims (10)
1. An axial multipole magnetizing apparatus, wherein the axial multipole magnetizing apparatus comprises:
an equipment body; and
a magnetizing assembly, wherein the magnetizing assembly comprises:
a first magnetizing coil, wherein the first magnetizing coil is disposed on the apparatus body, wherein the first magnetizing coil comprises a first coil main body and a first conductive end, wherein the first coil main body extends from the first conductive end to two sides, respectively, wherein the first coil main body comprises a plurality of first coil units arranged on a circumference, wherein the first coil main body has a first inner edge, wherein the first coil unit comprises a first inner flipping portion and a first conductive portion, wherein the first inner flipping portion is formed on the first inner edge, wherein the first magnetizing coil forms an axial direction perpendicular to a plane in which the circumference is located, wherein the first inner flipping portion and the first conductive portion are arranged at different heights in the axial direction; and
the second magnetizing coil is arranged on the equipment body in a coaxial mode with the first magnetizing coil and can be combined with the first magnetizing coil.
2. The axial multipole magnetizing apparatus of claim 1, wherein the second magnetizing coil comprises a second coil body and a second conductive end, wherein the second coil body extends from the second conductive end to both sides, respectively, wherein the second coil body comprises a plurality of second coil units arranged on a circumference, wherein the second coil body has a second inner edge, wherein the second coil unit comprises a second inner flip portion and a second conductive portion, wherein the second inner flip portion is formed at the second inner edge, wherein the second coil unit comprises a second inner flip portion and a second conductive portion, wherein the second inner flip portion and the second conductive portion are arranged at different heights in the axial direction.
3. The axial multipole magnetizing apparatus of claim 2, wherein the first coil body forms a first outer edge opposite to the first inner edge, wherein the first conductive part comprises a first outer turnover part, a first inner radial connecting part and a first outer radial connecting part, the first outer turnover part being provided at the first outer edge, the first inner turnover part and the first outer turnover part being integrally connected to both ends of the first inner radial connecting part, respectively, the first inner turnover part of one of the first coil units being connected to the first outer turnover part of the adjacent other of the first coil units through the first outer radial connecting part, wherein the first inner turnover part and the first outer turnover part are arranged at different heights in the axial direction from the first inner radial connecting part and the first outer radial connecting part.
4. The axial multipole magnetizing apparatus of claim 3, wherein the second coil body forms a second outer edge opposite to the second inner edge, wherein the second conductive part comprises a second outer turnover part, a second inner radial connecting part and a second outer radial connecting part, the second outer turnover part being provided at the second outer edge, the second inner turnover part and the second outer turnover part being integrally connected to both ends of the second inner radial connecting part, respectively, the second inner turnover part of one of the second coil units being connected to the second outer turnover part of the adjacent other of the second coil units through the second outer radial connecting part, wherein the second inner turnover part and the second outer turnover part are arranged at different heights in the axial direction from the second inner radial connecting part and the second outer radial connecting part.
5. The axial multipole magnetizing apparatus of claim 4, wherein a distance between the first inner radial connection and the first outer radial connection and a distance between the first outer radial connection of the first coil unit and the first inner radial connection of an adjacent further first coil unit may be adjusted, wherein a distance between the second inner radial connection and the second outer radial connection and a distance between the second outer radial connection of the second coil unit and the second inner radial connection of an adjacent further second coil unit may be adjusted.
6. The axial multipole magnetizing apparatus of claim 5, wherein a first mounting space is formed between the first inner radial connection and the first outer radial connection of the first coil unit, wherein a second mounting space is formed between the first outer radial connection of the first coil unit and the first inner radial connection of an adjacent further first coil unit, wherein a third mounting space is formed between the second inner radial connection and the second outer radial connection of the second coil unit, wherein a fourth mounting space is formed between the second outer radial connection of the second coil unit and the second inner radial connection of an adjacent further second coil unit, wherein the magnetizing assembly comprises a first stiffener and a second stiffener, wherein the first stiffener comprises a first iron block, wherein the second stiffener comprises a second iron block, wherein the first iron block is arranged in the first mounting space and the second mounting space, wherein the second iron block is arranged in the fourth mounting space.
7. The axial multipole magnetizing apparatus of claim 6, wherein the first stiffener comprises a first mounting body, wherein the first iron block is arranged on a circumference formed by the first mounting body, wherein the second stiffener comprises a second mounting body, wherein the second iron block is arranged on a circumference formed by the second mounting body.
8. The axial multipole magnetizing apparatus of claim 7, wherein said magnetizing assembly comprises a first inner shield and a second inner shield, wherein said first inner shield is mounted to said first inner edge and said second inner shield is mounted to said second inner edge.
9. The axial multipole magnetizing apparatus of claim 8, wherein said magnetizing assembly further comprises a first outer shield mounted to said first outer edge of said first magnetizing coil and a second outer shield mounted to said second outer edge of said second magnetizing coil.
10. The axial multipole magnetizing apparatus of claim 9, further comprising a lifting assembly, wherein the first magnetizing coil is brought into and out of engagement with the second magnetizing coil in the axial direction formed by the magnetizing coils by the lifting assembly, wherein the axial multipole magnetizing apparatus comprises a loading assembly forming a loading port for carrying an annular workpiece, and a drive element, the loading assembly comprising a loading plate, wherein the loading plate forms the loading port, wherein the loading plate is slidably moveable by the drive element into between the first magnetizing coil and the second magnetizing coil in a direction perpendicular to the axial direction formed by the magnetizing coils and is lockably positioned between the first magnetizing coil and the second magnetizing coil.
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