CN104227550A - EP type ferrite core center pillar grinder - Google Patents
EP type ferrite core center pillar grinder Download PDFInfo
- Publication number
- CN104227550A CN104227550A CN201410440670.5A CN201410440670A CN104227550A CN 104227550 A CN104227550 A CN 104227550A CN 201410440670 A CN201410440670 A CN 201410440670A CN 104227550 A CN104227550 A CN 104227550A
- Authority
- CN
- China
- Prior art keywords
- center pillar
- core center
- lapping device
- ferrite core
- delivery sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000227 grinding Methods 0.000 abstract description 20
- 229910001651 emery Inorganic materials 0.000 description 21
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses an EP type ferrite core center pillar grinder, which comprises a machine tool body, the machine tool body is provided with a channel, the bottom of the channel is provided with an opening, a grinding wheel is arranged in the opening, the circumferential surface of the grinding wheel is higher than the bottom surface of the channel, and a pressing device for pressing a ferrite core is arranged over the grinding wheel. The use of the EP type ferrite core center pillar grinder greatly increases the efficiency of grinding an EP type ferrite core center pillar, and the precision of products is high.
Description
Technical field
The present invention relates to a kind of lapping device, particularly relate to a kind of EP type ferrite magnetic core center pillar lapping device.
Background technology
Magnetic material is widely used in the every field of productive life, and demand is large.And along with every profession and trade technical development, various equipment all requires miniaturization, this makes respective element device also must to miniaturization, and FERRITE CORE is no exception.The structure of FERRITE CORE is varied, and the structure of EP type ferrite magnetic core as shown in Figure 1, comprises center pillar 1 and three sides surrounded lateral column 2.Need during FERRITE CORE production and processing to grind the upper surface of center pillar 1 and lateral column 2, make it meet flatness requirement.The processing mode of existing milling apparatus is generally such, is fixed on by FERRITE CORE on fixture, utilizes the mode of vertical grinding, grinds with emery wheel 3 effects on surface.In process of lapping, FERRITE CORE is fixing, and emery wheel 3 horizontally rotates, vertical feed, grinds center pillar 1 and lateral column 2 respectively at twice.Datum level due to twice grinding is all bottom surfaces of magnetic core, and the important dimensional requirement of this magnetic core is the difference in height controlling center pillar 1 and lateral column 2, and usual difference in height is 0.1mm.In vertical process of lapping, the upper and lower displacement of what the control of this precision relied on is emery wheel 3.But owing to grinding at twice, and the existence of each part fits tolerance in mechanical realization, make difference in height be difficult to remain consistent, affect product qualified rate.In addition, during due to grinding center pillar 1, the circular grinding wheel 3 that diameter is less must be adopted to grind, and need to adopt twice grinding to center pillar 1, a part for each lapped face has been come.Composition graphs 2, if grind middle-column main vertical feed lapping mode at twice, emery wheel 3 is only rotate with the relative motion of center pillar 1, and this just causes near emery wheel 3 center, and emery wheel 3 abrasive particle is less relative to the linear velocity on center pillar 1 surface, and grinding effect is also more weak.Therefore overall processing efficiency is very low, and emery wheel 3 weares and teares uneven everywhere, and the consumption of emery wheel 3 is also large.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the object of this invention is to provide a kind of EP type ferrite magnetic core center pillar lapping device, solve the unmanageable problem of precision of center pillar and lateral column grinding difference in height, and solve the low problem of grinding efficiency.
Technical scheme of the present invention is such: a kind of EP type ferrite magnetic core center pillar lapping device, comprise machine body, described machine body is provided with groove, described channel bottom is provided with opening, abrasive wheel is provided with in described opening, the periphery of described abrasive wheel is above the bottom surface of groove, and the top of described abrasive wheel is provided with the hold-down devices for compacted iron ferrite core.
Further, described hold-down devices comprises pinch roller, and the rotating shaft of described pinch roller and abrasive wheel shaft parallel, the skin of pinch roller is provided with elastic layer.
Preferably, described elastic layer is rubber layer.
Further, EP type ferrite magnetic core center pillar lapping device also comprises delivery sheet, and the top, two side of described groove is provided with recessed step, and described delivery sheet is shelved on step.
Further, described delivery sheet head end is provided with locating aperture.
Preferably, described locating aperture is rectangle.
Driving FERRITE CORE excessively to surmount abrasive wheel when advancing to prevent delivery sheet causes abrasive wheel to the grinding of lateral column, and described delivery sheet is provided with spacing column, and gag lever post is fixedly connected with groove both sides, the displacement of described spacing column restriction delivery sheet.
Technical scheme provided by the present invention, during grinding, EP type ferrite magnetic core snaps in the locating aperture of delivery sheet head end, and center pillar is downward, and under the push-and-pull of delivery sheet, FERRITE CORE moves around in the groove of machine body.When arriving above abrasive wheel, the lower pressure wheel be arranged on above abrasive wheel produces suppressing action to FERRITE CORE, and the elastic force of elastic layer makes the surface of lateral column be close to the bottom surface of groove, and eliminate gap, abrasive wheel grinds center pillar surface.The benefit of this lapping mode is, the distance exceeding trench bottom surfaces by controlling abrasive wheel periphery just accurately can control the difference in height of FERRITE CORE center pillar and lateral column.There is not the motion of vertical direction in abrasive wheel and magnetic core piece, therefore because the error propagation of the formation that moves both vertically of emery wheel is to product as prior art, can not substantially increase product size qualification rate.On the other hand, abrasive wheel and center pillar surface contact line are consistent relative to the movement velocity on center pillar surface and much larger than the speed of prior art, can not produce the point close to zero as prior art, only the once movement of magnetic core need be coordinated to complete grinding.Therefore grinding efficiency is greatly improved, and the waste of abrasive wheel reduces greatly, also just decreases the time that adjustment shut down by package unit.
Accompanying drawing explanation
Fig. 1 is EP type ferrite core structure schematic diagram.
Product and grinding wheel movement schematic diagram when Fig. 2 is prior art grinding.
Fig. 3 is structural representation of the present invention.
Fig. 4 is structure schematic side view of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but not as a limitation of the invention.
Refer to Fig. 3 and Fig. 4, EP type ferrite magnetic core center pillar lapping device, comprise machine body 4, machine body 4 is provided with groove 5, is provided with opening 6 bottom groove 5, is provided with abrasive wheel 3 i.e. emery wheel in opening 6.Opening 6 bottom groove 5 can be through-hole form, also can be the gap form running through trench length direction.The periphery of emery wheel 3, above the bottom surface of groove 6, specifically highly sets according to the difference in height of EP type ferrite magnetic core center pillar 1 to be ground and lateral column 2.The top of emery wheel 3 is provided with the hold-down devices for compacted iron ferrite core.Hold-down devices comprises pinch roller 7, and the rotating shaft of pinch roller 7 and emery wheel 3 shaft parallel, the skin of pinch roller 7 is provided with rubber elastic layer 8.EP type ferrite magnetic core center pillar lapping device also comprises delivery sheet 9, and be provided with recessed step 51 on the top, two side of groove 5, delivery sheet 9 is shelved on step 51, is provided with the locating aperture 10 of rectangle at delivery sheet 9 head end.FERRITE CORE is driven excessively to surmount the grinding that emery wheel 3 causes emery wheel 3 pairs of lateral columns 2 when advancing to prevent delivery sheet 9, the tail end of delivery sheet 9 is fixed with spacing column 11, gag lever post 12 is fixedly connected with groove 5 both sides, and spacing column 11 limits the displacement of delivery sheet 9.
During the running of this device, EP type ferrite magnetic core snaps in the locating aperture 10 of delivery sheet 9 head end, and center pillar 1 is downward, and under the push-and-pull of delivery sheet 9, FERRITE CORE moves around in the groove 5 of machine body 4.When arriving above emery wheel 3, the pinch roller 8 pairs of FERRITE COREs be arranged on above emery wheel 3 produce suppressing action, and the elastic force of elastic layer 9 makes the surface of lateral column 2 be close to the bottom surface of groove 5, and eliminate gap, emery wheel 3 pairs of center pillar 1 surfaces are ground.The decades of times of emery wheel 3 diameter when adopting the diameter of emery wheel 3 during this device can be mode shown in Fig. 2.Accordingly, emery wheel 3 is the decades of times of prior art with the movement velocity on center pillar 1 surface contact line relative center pillar 1 surface, and grinding efficiency improves greatly.
Claims (7)
1. an EP type ferrite magnetic core center pillar lapping device, comprise machine body (4), it is characterized in that, described machine body (4) is provided with groove (5), described groove (5) bottom is provided with opening (6), abrasive wheel (3) is provided with in described opening (6), the periphery of described abrasive wheel (3) is above the bottom surface of groove (5), and the top of described abrasive wheel (3) is provided with the hold-down devices for compacted iron ferrite core.
2. EP type ferrite magnetic core center pillar lapping device according to claim 1, it is characterized in that: described hold-down devices comprises pinch roller (7), the rotating shaft of described pinch roller (7) and abrasive wheel (3) shaft parallel, the skin of pinch roller (7) is provided with elastic layer (8).
3. FERRITE CORE center pillar lapping device according to claim 2, is characterized in that: described elastic layer (8) is rubber layer.
4. EP type ferrite magnetic core center pillar lapping device according to claim 1, it is characterized in that: comprise delivery sheet (9), the top, two side of described groove (5) is provided with recessed step (51), and described delivery sheet (9) is shelved on step (51).
5. EP type ferrite magnetic core center pillar lapping device according to claim 4, is characterized in that: described delivery sheet (9) head end is provided with locating aperture (10).
6. FERRITE CORE center pillar lapping device according to claim 5, is characterized in that: described locating aperture (10) is rectangle.
7. FERRITE CORE center pillar lapping device according to claim 4, it is characterized in that: described delivery sheet (9) is provided with spacing column (11), gag lever post (12) is fixedly connected with groove (5) both sides, the displacement of described spacing column (11) restriction delivery sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440670.5A CN104227550B (en) | 2014-09-01 | 2014-09-01 | EP type ferrite magnetic core center pillar lapping devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440670.5A CN104227550B (en) | 2014-09-01 | 2014-09-01 | EP type ferrite magnetic core center pillar lapping devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104227550A true CN104227550A (en) | 2014-12-24 |
| CN104227550B CN104227550B (en) | 2017-11-10 |
Family
ID=52216912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410440670.5A Active CN104227550B (en) | 2014-09-01 | 2014-09-01 | EP type ferrite magnetic core center pillar lapping devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104227550B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400187A (en) * | 2021-07-21 | 2021-09-17 | 合肥麦可一科技有限公司 | EP type ferrite magnetic core center column grinding device and grinding wheel feed control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111622A (en) * | 1989-05-18 | 1992-05-12 | Silicon Technology Corporation | Slicing and grinding system for a wafer slicing machine |
| CN201227765Y (en) * | 2008-07-15 | 2009-04-29 | 乳源东阳光磁性材料有限公司 | Air gap grinding attachment |
| CN202462176U (en) * | 2011-12-12 | 2012-10-03 | 麦格磁电科技（珠海）有限公司 | Magnetic core rapid accurate gapping device |
| CN102744672A (en) * | 2012-07-04 | 2012-10-24 | 昆山市达功电子厂 | Crown type magnetic core grinding device |
| CN204123255U (en) * | 2014-09-01 | 2015-01-28 | 常熟市研明电子元器件厂 | EP type ferrite magnetic core center pillar lapping device |
-
2014
- 2014-09-01 CN CN201410440670.5A patent/CN104227550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111622A (en) * | 1989-05-18 | 1992-05-12 | Silicon Technology Corporation | Slicing and grinding system for a wafer slicing machine |
| CN201227765Y (en) * | 2008-07-15 | 2009-04-29 | 乳源东阳光磁性材料有限公司 | Air gap grinding attachment |
| CN202462176U (en) * | 2011-12-12 | 2012-10-03 | 麦格磁电科技（珠海）有限公司 | Magnetic core rapid accurate gapping device |
| CN102744672A (en) * | 2012-07-04 | 2012-10-24 | 昆山市达功电子厂 | Crown type magnetic core grinding device |
| CN204123255U (en) * | 2014-09-01 | 2015-01-28 | 常熟市研明电子元器件厂 | EP type ferrite magnetic core center pillar lapping device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400187A (en) * | 2021-07-21 | 2021-09-17 | 合肥麦可一科技有限公司 | EP type ferrite magnetic core center column grinding device and grinding wheel feed control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104227550B (en) | 2017-11-10 |
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Denomination of invention: EP type ferrite core pillar grinding device Effective date of registration: 20220721 Granted publication date: 20171110 Pledgee: Jiangsu Changshu Rural Commercial Bank Co.,Ltd. Yushan sub branch Pledgor: CHANGSHU YANMING ELECTRONIC COMPONENT FACTORY Registration number: Y2022320010406 |