CN108231330B - Double-sided bipolar magnetizing clamp - Google Patents
Double-sided bipolar magnetizing clamp Download PDFInfo
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- CN108231330B CN108231330B CN201711490185.9A CN201711490185A CN108231330B CN 108231330 B CN108231330 B CN 108231330B CN 201711490185 A CN201711490185 A CN 201711490185A CN 108231330 B CN108231330 B CN 108231330B
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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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Abstract
The invention discloses a double-sided bipolar magnetizing clamp which comprises a magnetizing tool and a wiring terminal, wherein the magnetizing tool bears a product to be magnetized, and two surfaces of the product to be magnetized are synchronously magnetized in a radial double-sided bipolar manner; and the connecting terminal is connected with the magnetizing assembly and the power supply. The double-sided bipolar magnetizing clamp provided by the scheme can magnetize the bonded ferrite magnetic sheet or the bonded neodymium iron boron magnetic sheet, can realize that two surfaces of a product are magnetized simultaneously, has the same magnetic characteristics, and can be used when being assembled, no matter which surface faces outwards, so that the surface recognition is not needed when the product is assembled, the working hours are reduced, and the failure of a sensor caused by poor assembly can be avoided.
Description
Technical Field
The invention relates to machining equipment, in particular to a magnetizing clamp.
Background
At present, the application field of magnetic materials is very wide, the magnetic circuit designs of different applications are different, the shapes and the magnetizing directions of the used magnets are also different, and the shapes of the magnets mainly comprise: cylindrical, annular, square and tile-shaped, the magnetizing direction is more common along the axial direction and the radial direction.
In a particular application involved, an automotive angle sensor requires axial bipolar charging of the magnetic charging surface of the disc magnet.
However, in actual production, one surface of the wafer magnet is magnetized, the other surface of the wafer magnet is not magnetized, but the appearances of the two surfaces are completely the same, the magnetized surface is required to face outwards for use during assembly, and the production and the assembly are difficult.
Disclosure of Invention
Aiming at the problem that the existing single-sided and two-pole magnetizing scheme is difficult to assemble, a new magnetizing scheme is needed.
Therefore, the technical problem to be solved by the invention is to provide a double-sided bipolar magnetizing fixture, which realizes simultaneous magnetizing of two faces of a wafer magnet, and has completely the same magnetic characteristics, so that face recognition is not needed during assembly, the working time is reduced, and sensor failure caused by poor assembly can be avoided.
In order to solve the technical problem, the double-sided bipolar magnetizing clamp provided by the invention mainly comprises:
the magnetizing tool bears a product to be magnetized, and radial double-sided bipolar magnetization is synchronously performed on two surfaces of the product to be magnetized;
and the wiring terminal is connected with the magnetizing assembly and the power supply.
In this scheme, the frock of magnetizing includes:
the pole head part bears a product to be magnetized, and generates an upper charging magnetic field with 2 poles vertical to the upper plane direction of the product and a lower charging magnetic field with 2 poles vertical to the lower plane direction of the product; at the moment of electrifying, the upper magnetizing field and the lower magnetizing field are mutually superposed, and the upper plane and the lower plane of the product are simultaneously saturated and magnetized;
and the pull-out part is matched with the pole head part and used for pulling the finished magnetized product out of the pole head part.
In the scheme, the pole head part comprises an upper iron core, an upper iron core winding, a lower iron core winding and filling resin;
an upper charging winding group is wound on the upper charging iron core to form an upper magnetizing unit; the lower magnetizing core is wound with a lower magnetizing coil group to form a lower magnetizing unit, and the upper magnetizing unit and the lower magnetizing unit are vertically and oppositely fixed and are encapsulated by filling resin; and an upper charging winding group on the upper charging iron core and a lower iron core winding group on the outer charging iron core are matched to enclose a magnetizing effective area for arranging a product to be magnetized.
In the scheme, the upper charging winding group and the lower charging winding group are connected in series and connected.
In the scheme, the wire inlet end of the upper wire charging and winding group is externally connected with the positive electrode of a power supply, the wire inlet end of the lower wire charging and winding group is connected with the wire outlet end of the upper wire charging and winding group, and the wire outlet end of the lower wire charging and winding group is externally connected with the negative electrode of the power supply.
In the scheme, the upper charging wire group winds a phi 2.0 copper wire for 2 turns; the lower charging wire is wound around a phi 2.0 copper wire for 2 turns.
In this scheme, the pull-out part is including the arm-tie and the slip track that bear the weight of the product, the slip track corresponds the effective area that magnetizes that sets up at utmost point first part, the arm-tie can drive the product along the slip track make a round trip to slide in the effective area that magnetizes of utmost point first part.
The double-sided bipolar magnetizing clamp provided by the scheme can magnetize the bonded ferrite magnetic sheet or the bonded neodymium iron boron magnetic sheet, can realize that two surfaces of a product are magnetized simultaneously, has the same magnetic characteristics, and can be used when being assembled, no matter which surface faces outwards, so that the surface recognition is not needed when the product is assembled, the working hours are reduced, and the failure of a sensor caused by poor assembly can be avoided.
Drawings
The invention is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a front view of a two-sided, bipolar magnetizing fixture in an example of the present invention;
FIG. 2 is a top view of a two-sided bipolar magnetizing fixture in an example of the present invention.
Reference numerals:
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
In the embodiment, 2 poles of upper charging magnetic fields vertical to the upper plane direction of the product and 2 poles of lower charging magnetic fields vertical to the lower plane direction of the product are generated on the product to be magnetized; the upper magnetizing field and the lower magnetizing field are mutually superposed to simultaneously saturate and magnetize the upper plane and the lower plane of the product.
Referring to fig. 1 and 2, there are shown schematic structural views of a double-sided bipolar magnetizing fixture provided by the present embodiment based on the above-mentioned principle. The clamp can synchronously carry out radial double-sided bipolar magnetization on two surfaces of a product to be magnetized.
As can be seen from the figure, the double-sided bipolar magnetizing clamp mainly comprises a bottom plate, a pole head part fixed above the bottom plate, a pull-out part and a connecting terminal.
The base plate 1 serves as a base for the entire jig for carrying other component parts. The upper surface of the bottom plate 1 is a mounting surface for mounting other components, and four end corners of the lower surface are respectively padded with four insulating padding feet 12.
The connecting terminals 2 are used for an external power supply and are fixed on the bottom plate 1 through seventh screws 23.
The pole head part is a magnetizing execution part in the whole fixture and is used for bearing a product to be magnetized and synchronously carrying out radial double-sided bipolar magnetizing on two surfaces of the product to be magnetized.
Referring to fig. 1, the pole head portion is fixedly disposed on the base plate 1 with respect to the terminal block 2 and is connected to the terminal block 2 via the magnet wire 3 and the magnet wire 24.
The pole head part mainly comprises a cover plate 4, a first upper iron core charging resin groove 5, an upper iron core charging 6, an upper iron core charging winding 9, packaging resin 10, a second upper iron core charging resin groove 11, a second lower iron core charging resin groove 14, a lower iron core charging 17, a lower iron core charging winding 18 and a first lower iron core charging resin groove 21 which are matched with each other, and a fixing component formed by matching a first screw 13, a second screw 15, a third screw 16, a fourth screw 19, a fifth screw 20 and a sixth screw 22 is fixed on a bottom plate 1.
Specifically, an upper iron core charging winding 9 is wound on an upper iron core charging 6 to form an upper magnetizing unit, the upper magnetizing unit is integrally arranged in an upper iron core charging arranging groove formed by matching a first upper iron core charging resin groove 5 and a second upper iron core charging resin groove 11, the lower end of the upper iron core charging unit is fixed on a lower iron core charging arranging groove, the upper end of the upper iron core charging unit is fixed by a cover plate 4, and the upper iron core charging unit is locked and fixed on the clamp bottom plate 1 by corresponding screws after being packaged by matching a packaging resin 10 with the first upper iron core charging resin groove 5 and the second upper iron core charging resin groove 11;
in cooperation therewith, the lower core 17 is wound around the lower core winding group 18 to constitute a lower magnetizing unit which is integrally disposed in a lower core disposition groove formed by the first lower core resin groove 21 and the second lower core resin groove 14 in cooperation, vertically opposed to the upper core 6. The lower end of the lower charging core is fixed on the clamp bottom plate 1, the upper end of the lower charging core is fixed relative to the upper charging core 6, and the lower charging core is locked and fixed on the clamp bottom plate 1 by corresponding screws after resin encapsulation is carried out by the encapsulation resin 10 matched with the first lower charging core resin groove 21 and the second lower charging core resin groove 14;
and the upper charging iron core and the outer charging iron core are matched to enclose a magnetizing effective area for arranging a product to be magnetized.
On the basis, the upper iron core charging winding 9 and the lower iron core charging winding 18 in the pole head part are connected in series, the inlet end of the upper iron core charging winding 9 is externally connected with the positive electrode of a power supply, the inlet end of the lower iron core charging winding 18 is connected with the outlet end of the upper iron core charging winding 9, and the outlet end of the lower iron core charging winding 18 is externally connected with the negative electrode of the power supply.
Furthermore, the upper charging winding group 9 (i.e. the upper charging core winding 9) winds phi 2.0 copper wires for 2 turns; correspondingly, the lower charge winding group 18 (i.e., the lower charge winding group 18) also winds the Φ 2.0 copper wire for 2 turns.
In the pole head part formed by the method, the upper charging winding can generate 2-pole radiation magnetic field vertical to the upper plane direction of the product, the magnetic field is used as an upper charging magnetic field, and the upper charging magnetic field magnetizes the upper plane of the product; the lower charging iron core is wound with a lower charging winding, when the lower charging iron core is electrified, the lower charging winding can generate a 2-pole radiation magnetic field vertical to the lower plane direction of the product, the magnetic field is used as a lower magnetizing field, and the lower magnetizing field magnetizes the lower plane of the product; at the moment of electrifying, the upper magnetizing field and the lower magnetizing field are mutually superposed to simultaneously saturate and magnetize the upper plane and the lower plane of the product.
The pull-out part in the clamp is used for being matched with the pole head part and sending a product to be magnetized into a magnetizing effective area of the pole head part; and pulling the completed magnetized product out of the pole head portion.
The pull-out part in the scheme comprises an upper iron filling core 6, a second upper iron filling core resin groove 11, a lower iron filling core 17, a second lower iron filling core resin groove 14, a surrounding sliding track and a corresponding pull plate 7. The pulling plate 7 is used for directly bearing the product 8 and can slide back and forth on the sliding track to drive the product 8 to enter or be pulled out of the magnetizing effective area of the polar head part.
When the double-sided bipolar magnetizing clamp constructed according to the scheme performs double-sided magnetizing operation on a product 8 to be magnetized, before magnetizing starts, the pulling plate 7 is pulled out, the product 8 is fixed in the pulling plate 7, and then the product 8 to be magnetized is sent into a magnetizing effective area of a pole head part by the pulling plate 7 along the sliding track.
Then, a power supply is switched on, the upper charging iron core in the clamp is wound with an upper charging winding, and when the upper charging iron core is electrified, the upper charging winding can generate a 2-pole radiation magnetic field vertical to the upper plane direction of the product to form an upper charging field so as to magnetize the upper plane of the product; the lower charging iron core is wound with a lower charging winding, and when the lower charging iron core is electrified, the lower charging winding can generate a 2-pole radiation magnetic field vertical to the lower plane direction of the product to form a lower charging magnetic field so as to magnetize the lower plane of the product; at the moment of electrifying, the upper magnetizing field and the lower magnetizing field are mutually superposed to simultaneously saturate and magnetize the upper plane and the lower plane of the product.
After the completion of the magnetization, the pulling plate 7 is pulled out from the pole head portion by an external force, and then the magnetized product 8 is pulled out.
Finite element simulation calculation and test verification prove that when the current of 10KA is used for magnetizing, the magnetic flux density at the position of the outer diameter of the product can reach 3T (Tesla), and the magnetizing requirements of the neodymium iron boron permanent magnet material and the ferrite permanent magnet material can be met.
From the above, the double-sided bipolar magnetizing clamp scheme provided by the embodiment can realize simultaneous magnetizing of two surfaces, and the magnetic characteristics are completely the same, so that the magnetized product can be used no matter which surface faces outwards during assembly, the surface recognition is not needed, the working hours are reduced, and the sensor failure caused by poor assembly can be avoided.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Two-sided bipolar anchor clamps that magnetize, its characterized in that includes:
the magnetizing tool bears a product to be magnetized, radial double-sided bipolar magnetization is synchronously performed on two surfaces of the product to be magnetized, and the magnetic characteristics are completely the same; the magnetizing tool comprises a pole head part and a pulling-out part, wherein the pole head part bears a product to be magnetized, and 2 poles of upper magnetizing fields vertical to the upper plane direction of the product and 2 poles of lower magnetizing fields vertical to the lower plane direction of the product are generated on the product to be magnetized; at the moment of electrifying, the upper magnetizing field and the lower magnetizing field are mutually superposed, and the upper plane and the lower plane of the product are simultaneously saturated and magnetized; the pole head part is mainly formed by matching a cover plate, a first upper iron core charging resin groove, an upper iron core charging winding, packaging resin, a second upper iron core charging resin groove, a second lower iron core charging resin groove, a lower iron core charging winding and a first lower iron core charging resin groove, and is fixed on a bottom plate by a fixing component; an upper iron core charging winding is wound on the upper iron core charging to form an upper magnetizing unit, the upper magnetizing unit is integrally arranged in an upper iron core charging arranging groove formed by matching a first upper iron core charging resin groove and a second upper iron core charging resin groove, the lower end of the upper iron core charging unit is fixed on a lower iron core charging arranging groove, the upper end of the upper iron core charging unit is fixed by a cover plate, and the upper iron core charging unit is fixed on a clamp bottom plate after being packaged by matching packaging resin with the first upper iron core charging resin groove and the second upper iron core charging resin groove; the lower magnetizing unit is integrally arranged in a lower charging core arranging groove formed by matching a first lower charging core resin groove and a second lower charging core resin groove and is vertically opposite to the upper charging core; the lower end of the lower charging core is fixed on the clamp bottom plate, the upper end of the lower charging core is fixed relative to the upper charging core, and the lower charging core is locked and fixed on the clamp bottom plate by corresponding screws after resin encapsulation is carried out by encapsulation resin matching with the first lower charging core resin groove and the second lower charging core resin groove; the upper charging iron core and the outer charging iron core are matched to enclose a magnetizing effective area for placing a product to be magnetized; the pull-out part is matched with the pole head part and used for pulling the magnetized product out of the pole head part;
and the wiring terminal is connected with the magnetizing assembly and the power supply.
2. The dual sided bipolar magnetizing fixture of claim 1, wherein the upper charging coil set and the lower charging coil set are wired in series.
3. The dual-sided bipolar magnetizing fixture of claim 2, wherein the wire inlet end of the upper charging coil group is externally connected with a positive electrode of a power supply, the wire inlet end of the lower charging coil group is connected with the wire outlet end of the upper charging coil group, and the wire outlet end of the lower charging coil group is externally connected with a negative electrode of the power supply.
4. The double-sided bipolar magnetizing clamp of claim 1, wherein the upper charging wire is wound around a Φ 2.0 copper wire for 2 turns; the lower charging wire is wound around a phi 2.0 copper wire for 2 turns.
5. The double-sided bipolar magnetizing clamp of claim 1, wherein the pulling portion comprises a pulling plate for carrying the product and a sliding track, the sliding track is correspondingly disposed in the magnetizing effective area of the pole head portion, and the pulling plate can drive the product to slide back and forth in the magnetizing effective area of the pole head portion along the sliding track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711490185.9A CN108231330B (en) | 2017-12-29 | 2017-12-29 | Double-sided bipolar magnetizing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711490185.9A CN108231330B (en) | 2017-12-29 | 2017-12-29 | Double-sided bipolar magnetizing clamp |
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| Publication Number | Publication Date |
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| CN108231330A CN108231330A (en) | 2018-06-29 |
| CN108231330B true CN108231330B (en) | 2020-06-23 |
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| CN201711490185.9A Active CN108231330B (en) | 2017-12-29 | 2017-12-29 | Double-sided bipolar magnetizing clamp |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110415914B (en) * | 2019-06-11 | 2021-03-16 | 温州任和文化创意有限责任公司 | Magnetizing plate for uniformly magnetizing magnetic adhesive tape |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770845A (en) * | 2008-12-29 | 2010-07-07 | 北京中科三环高技术股份有限公司 | Automatic magnetizing apparatus and method of two poles of magnetic sheet |
| CN102623133A (en) * | 2011-01-28 | 2012-08-01 | 三环瓦克华（北京）磁性器件有限公司 | Method for multi-pole magnetizing of sintered neodymium-iron-boron magnet |
| CN106710784A (en) * | 2016-12-30 | 2017-05-24 | 上海三环磁性材料有限公司 | Radial two-pole magnetizing fixture |
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2017
- 2017-12-29 CN CN201711490185.9A patent/CN108231330B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770845A (en) * | 2008-12-29 | 2010-07-07 | 北京中科三环高技术股份有限公司 | Automatic magnetizing apparatus and method of two poles of magnetic sheet |
| CN102623133A (en) * | 2011-01-28 | 2012-08-01 | 三环瓦克华（北京）磁性器件有限公司 | Method for multi-pole magnetizing of sintered neodymium-iron-boron magnet |
| CN106710784A (en) * | 2016-12-30 | 2017-05-24 | 上海三环磁性材料有限公司 | Radial two-pole magnetizing fixture |
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| CN108231330A (en) | 2018-06-29 |
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