CN109175906A - The processing method of miniature magnetic core - Google Patents
The processing method of miniature magnetic core Download PDFInfo
- Publication number
- CN109175906A CN109175906A CN201811159597.9A CN201811159597A CN109175906A CN 109175906 A CN109175906 A CN 109175906A CN 201811159597 A CN201811159597 A CN 201811159597A CN 109175906 A CN109175906 A CN 109175906A
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- Prior art keywords
- magnetic core
- miniature magnetic
- miniature
- processing
- processing method
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- 238000003672 processing method Methods 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000000047 product Substances 0.000 claims description 26
- 239000012043 crude product Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 238000005422 blasting Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of processing method of miniature magnetic core, including the cold pier mold of design, choose the procedure of processings such as wire rod, the molding of cold pier, cutting or milled processed, polishing treatment and appearance detection；On the one hand, processing method of the present invention not only greatly reduces difficulty of processing and processing cost, but also greatly improves processing efficiency and finished product yield, so that every electric performance stablity of miniature magnetic core finished product, consistency are good, meets future development trend requirement；On the other hand, processing method of the present invention may be utilized in fabricating the magnetic core of various sizes, and practicability is high；In addition, the miniature magnetic core that the present invention produces can quickly and accurately determine the quality of magnetic core by appearance detection, does not need to judge magnetic core quality quality by being powered after coiling, greatly reduce unnecessary waste.
Description
Technical field
The present invention relates to magnetic core processing technique fields, specifically provide a kind of processing method of miniature magnetic core.
Background technique
Magnetic core is mainly used in the induction coils such as hearing aid, loudspeaker, is the member that must be configured in the products such as hearing aid
Part, the quality of magnetic core will have a direct impact on the quality of the products such as hearing aid.
The conventional structure of magnetic core are as follows: be disc-shaped for the center pillar 1 of cylindrical shape and two including one and be connected to institute
State the flange plate 2 in 1 axial ends of center pillar (see shown in attached drawing 1).And there are mainly two types of the conventional methods of currently manufactured magnetic core,
It is respectively as follows: and 1) makes magnetic core of turnery processing molding procedure, is i.e. center pillar in magnetic core and two flange plates is integrally formed.2)
Center pillar first is produced with wire rod, goes out two flange plates with board making；Then center pillar and two flange plate surfaces are polished
Processing；And then two flange plates are respectively welded in the axial ends of center pillar by welding sequence twice again, that is, be made
Magnetic core.
Although two kinds of above-mentioned magnetic core conventional production methods are using commonplace, with magnetic core small, miniature
The development of change, above two routine production method also show more and more shortcomings, show: because with magnetic core day
Become the development of miniaturization, micromation, and 1 diameter of center pillar of magnetic core can be smaller and smaller, and the diameter of flange plate can increasing and thickness
It can be more and more thinner；A) so easily center pillar can be caused to be broken when carrying out turnery processing, and flange plate is also extremely difficult to produce
It is required that this also indicates that miniaturization, the core structure of micromation can greatly improve the difficulty of processing of turnery processing, and through turning
The fraction defective of the components processed is also very high.B) correspondingly, because core structure miniaturization and micromation, will also result in weldering
The difficulty of processing for connecing process improves and weld strength reduces, to influence the quality of final magnetic core finished product.In addition, through welding
The magnetic core for connecing machine-shaping, the quality quality for needing to check magnetic core finished product by being powered after coiling, this can generate very big wave
Take.
In view of this, the present invention is specifically proposed.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of processing methods of miniature magnetic core, have both greatly reduced and have added
Work difficulty and processing cost, and greatly improve processing efficiency and finished product yield.
The present invention is to solve technical solution used by its technical problem: a kind of processing method of miniature magnetic core, packet
Include following procedure of processing:
Step 1) is optimized according to material, shape and size of the product requirement to miniature magnetic core；
Step 2) designs suitable cold pier mold according to the material of miniature magnetic core, shape and size；
Step 3) chooses suitable wire rod according to the material of miniature magnetic core, shape and size；
Step 4) carries out cold pier processing and forming to wire rod using above-mentioned cold pier mold, obtains miniature magnetic core crude product, described micro-
It is that the center pillar of cylindrical shape and two are disc-shaped and are integrally connected to the center pillar axial two respectively that type magnetic core crude product, which includes one,
Flange plate on end；
Step 5) carries out machining to the surface of gained miniature magnetic core crude product, so that the middle column dimension meets product
It is required that；
Alternatively, being ground to the surface of gained miniature magnetic core crude product, to remove on miniature magnetic core crude product surface
Burr；
Step 6) obtains smooth micro- in surface to treated that miniature magnetic core crude product surface is processed by shot blasting through step 5)
Type magnetic core finished product；
Step 7) carries out appearance detection to gained miniature magnetic core finished product.
As a further improvement of the present invention, the middle column diameter of the miniature magnetic core finished product is not more than 2mm, flange plate diameter
Not less than 4mm, flange plate thickness is not more than 0.4mm.
The beneficial effects of the present invention are: being different from the prior art, the present invention optimizes the processing method of miniature magnetic core
It improves, manufactures miniature magnetic core using the processing method that " molding of cold pier, cutting or/milled processed, polishing treatment " combines, one
Aspect, processing method of the present invention not only greatly reduce difficulty of processing and processing cost, but also greatly improve processing effect
Rate and finished product yield meet future development trend and want so that every electric performance stablity of miniature magnetic core finished product, consistency are good
It asks；On the other hand, processing method of the present invention may be utilized in fabricating the magnetic core of various sizes, and practicability is high.In addition, this hair
The bright miniature magnetic core produced can quickly and accurately determine the quality of magnetic core by appearance detection, not need to pass through coiling
It is powered afterwards to judge magnetic core quality quality, greatly reduces unnecessary waste.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of miniature magnetic core of the present invention；
Fig. 2 is the processing method flow chart of miniature magnetic core of the present invention.
In conjunction with attached drawing, make the following instructions:
1 --- center pillar 2 --- flange plate
Specific embodiment
Referring to figure to a preferred embodiment of the present invention will be described in detail.
Embodiment 1:
It please refers to shown in attached drawing 2, is the processing method flow chart of miniature magnetic core of the present invention.
The processing method of the miniature magnetic core, including following procedure of processing:
Step 1) is optimized according to material, shape and size of the product requirement to miniature magnetic core；
Step 2) designs suitable cold pier mold according to the material of miniature magnetic core, shape and size；
Step 3) chooses suitable wire rod according to the material of miniature magnetic core, shape and size, it is preferred that the material of wire rod
Permalloy may be selected, the diameter of wire rod is determined generally according to the size of center pillar or flange plate；
Step 4) carries out cold pier processing and forming to wire rod using above-mentioned cold pier mold, obtains miniature magnetic core crude product, described micro-
It is that the center pillar of cylindrical shape and two are disc-shaped and are integrally connected to the center pillar axial two respectively that type magnetic core crude product, which includes one,
Flange plate (seeing shown in attached drawing 1) on end；
Step 5) carries out machining to the surface of gained miniature magnetic core crude product, so that the middle column dimension meets product
It is required that；
Alternatively, being ground to the surface of gained miniature magnetic core crude product, to remove on miniature magnetic core crude product surface
Burr；
Step 6) obtains smooth micro- in surface to treated that miniature magnetic core crude product surface is processed by shot blasting through step 5)
Type magnetic core finished product；Preferably, the middle column diameter of the miniature magnetic core finished product is not more than 2mm, and flange plate diameter is not less than 4mm, method
Blue piece thickness is not more than 0.4mm；
Step 7) carries out appearance detection to gained miniature magnetic core finished product, wherein appearance detection project includes: the center pillar
Diameter d1, the diameter d2 of two flange plates, thickness h, the circularity of two flange plates, two flange plates are opposite
The degree of eccentricity of the center pillar, the length L of the miniature magnetic core finished product, etc., if meet product requirement.
Different from the prior art, the present invention optimizes the processing method of miniature magnetic core, using " cold pier molding,
Cutting or/milled processed, polishing treatment " the processing method that combines manufactures miniature magnetic core, on the one hand, of the present invention
Processing method not only greatly reduces difficulty of processing and processing cost, but also greatly improves processing efficiency and finished product yield, so that micro-
Every electric performance stablity of type magnetic core finished product, consistency are good, meet future development trend requirement；On the other hand, institute of the present invention
The processing method of use may be utilized in fabricating the magnetic core of various sizes, and practicability is high.In addition, the miniature magnetic core that the present invention produces is logical
The quality of magnetic core can quickly and accurately be determined by crossing appearance detection, not need to judge magnetic core quality by being powered after coiling
Quality greatly reduces unnecessary waste.
The above is only a preferred embodiment of the present invention, it but is not intended to restrict the invention, it is noted that for this
For the those of ordinary skill of technical field, without departing from the technical principles of the invention, several improvement can also be made
And modification, these improvements and modifications also should be regarded as within the scope of the present invention.
Claims (2)
1. a kind of processing method of miniature magnetic core, it is characterised in that: including following procedure of processing:
Step 1) is optimized according to material, shape and size of the product requirement to miniature magnetic core；
Step 2) designs suitable cold pier mold according to the material of miniature magnetic core, shape and size；
Step 3) chooses suitable wire rod according to the material of miniature magnetic core, shape and size；
Step 4) carries out cold pier processing and forming to wire rod using above-mentioned cold pier mold, obtains miniature magnetic core crude product, the Miniature magnetic
It is that the center pillar of cylindrical shape and two are disc-shaped and are integrally connected in the center pillar axial ends respectively that core crude product, which includes one,
Flange plate；
Step 5) carries out machining to the surface of gained miniature magnetic core crude product, so that the middle column dimension meets product and wants
It asks；
Alternatively, being ground to the surface of gained miniature magnetic core crude product, to remove the burr on miniature magnetic core crude product surface；
Step 6) obtains the smooth Miniature magnetic in surface to treated that miniature magnetic core crude product surface is processed by shot blasting through step 5)
Core finished product；
Step 7) carries out appearance detection to gained miniature magnetic core finished product.
2. the processing method of miniature magnetic core according to claim 1, it is characterised in that: the center pillar of the miniature magnetic core finished product
Diameter is not more than 2mm, and flange plate diameter is not less than 4mm, and flange plate thickness is not more than 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159597.9A CN109175906A (en) | 2018-09-30 | 2018-09-30 | The processing method of miniature magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159597.9A CN109175906A (en) | 2018-09-30 | 2018-09-30 | The processing method of miniature magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109175906A true CN109175906A (en) | 2019-01-11 |
Family
ID=64946934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811159597.9A Pending CN109175906A (en) | 2018-09-30 | 2018-09-30 | The processing method of miniature magnetic core |
Country Status (1)
| Country | Link |
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| CN (1) | CN109175906A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620005A (en) * | 2019-08-05 | 2019-12-27 | 无锡斯贝尔磁性材料有限公司 | Production method of bare wire direct-wound magnetic core |
| CN112959003A (en) * | 2021-02-02 | 2021-06-15 | 安阳凯地电磁技术有限公司 | Processing technology of integrated electromagnetic ferromagnetic core tube |
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|---|---|---|---|---|
| CN1061487A (en) * | 1990-11-14 | 1992-05-27 | 海安县磁性材料二厂 | Dry pressing method of ferrite i-shaped core |
| CN1881488A (en) * | 2005-05-25 | 2006-12-20 | 胜美达集团株式会社 | magnetic element |
| CN201017749Y (en) * | 2006-11-17 | 2008-02-06 | 湖州科达磁电有限公司 | I-shaped magnetic material element |
| CN101689421A (en) * | 2007-04-26 | 2010-03-31 | 东邦亚铅株式会社 | Winding inductor and process for manufacturing the same |
| CN103611868A (en) * | 2013-11-18 | 2014-03-05 | 梧州恒声电子科技有限公司 | Cold forging die for forging center holes of T iron |
| CN104128744A (en) * | 2014-06-26 | 2014-11-05 | 梧州恒声电子科技有限公司 | Reducing process for producing T iron by cold forging |
| CN104139142A (en) * | 2014-06-26 | 2014-11-12 | 梧州恒声电子科技有限公司 | Diameter-expanding technique for T iron produced through cold forging |
| CN105959880A (en) * | 2016-07-19 | 2016-09-21 | 国光电器股份有限公司 | T iron, magnetic circuit assembly and high-power loudspeaker |
-
2018
- 2018-09-30 CN CN201811159597.9A patent/CN109175906A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061487A (en) * | 1990-11-14 | 1992-05-27 | 海安县磁性材料二厂 | Dry pressing method of ferrite i-shaped core |
| CN1881488A (en) * | 2005-05-25 | 2006-12-20 | 胜美达集团株式会社 | magnetic element |
| CN201017749Y (en) * | 2006-11-17 | 2008-02-06 | 湖州科达磁电有限公司 | I-shaped magnetic material element |
| CN101689421A (en) * | 2007-04-26 | 2010-03-31 | 东邦亚铅株式会社 | Winding inductor and process for manufacturing the same |
| CN103611868A (en) * | 2013-11-18 | 2014-03-05 | 梧州恒声电子科技有限公司 | Cold forging die for forging center holes of T iron |
| CN104128744A (en) * | 2014-06-26 | 2014-11-05 | 梧州恒声电子科技有限公司 | Reducing process for producing T iron by cold forging |
| CN104139142A (en) * | 2014-06-26 | 2014-11-12 | 梧州恒声电子科技有限公司 | Diameter-expanding technique for T iron produced through cold forging |
| CN105959880A (en) * | 2016-07-19 | 2016-09-21 | 国光电器股份有限公司 | T iron, magnetic circuit assembly and high-power loudspeaker |
Non-Patent Citations (1)
| Title |
|---|
| 何彬: "小磁芯冲压成型工艺及模具", 《磁性材料及器件》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620005A (en) * | 2019-08-05 | 2019-12-27 | 无锡斯贝尔磁性材料有限公司 | Production method of bare wire direct-wound magnetic core |
| CN112959003A (en) * | 2021-02-02 | 2021-06-15 | 安阳凯地电磁技术有限公司 | Processing technology of integrated electromagnetic ferromagnetic core tube |
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Application publication date: 20190111 |