CN104078053B - The processing unit (plant) and processing method of head-slider - Google Patents
The processing unit (plant) and processing method of head-slider Download PDFInfo
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- CN104078053B CN104078053B CN201310101975.9A CN201310101975A CN104078053B CN 104078053 B CN104078053 B CN 104078053B CN 201310101975 A CN201310101975 A CN 201310101975A CN 104078053 B CN104078053 B CN 104078053B
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- head
- slider
- cutter wheel
- root
- wheel device
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Abstract
The present invention discloses a kind of processing unit (plant) of head-slider, for cutting head-slider and forming circular arc chamfering in an at least outer edge in the air bearing face of the head-slider comprising cutter wheel device and the control device being connected with the cutter wheel device.The cutter wheel device includes an at least break bar, the break bar includes root and the top that is connected with the root, the junction at the root and the top forms spill arc portion, and circular arc chamfering is formed on the outer edge of head-slider by the spill arc portion when cutter wheel device cuts head-slider.The control device includes the rotating mechanism for making the cutter wheel device rotation.It is of the invention the surface of head-slider to be polished while independent separate single head-slider, to form the circular arc chamfering for being conducive to improve performance of magnetic-head sliding block on the surface of head-slider.Invention additionally discloses a kind of processing methods of head-slider.
Description
Technical field
The present invention relates to a kind of hard disk drives（Hard disk drive, HDD）In head-slider more particularly to one
The processing unit (plant) and processing method of kind head-slider, to cut simultaneously polishing magnetic-head sliding block.
Background technology
Hard disk drive is common information storing device.Fig. 1 a are the schematic diagram of a typical hard drive 100.It is wrapped
A series of rotatable discs 101 being installed on a spindle motor 102 are included, and are rotated around driving arm axle 105 to access magnetic
The magnetic-head cantilever assembling of data on disk（Head stack assembly, HSA）130.The HSA130 includes an at least actuating arm
104 and HGA150.Typically, further include a main shaft voice coil motor（It is not shown）To control the movement in actuating arm 104.
Include head-slider 103 with reference to figure 1b, the HGA150, and is used to support the cantilever part of the magnetic head slider 103
190.The cantilever part 190 includes load beam 106, substrate 108, hinge element 107 and flexible element 109, and the above element is assemblied in
Together.One writing sensor of heeling-in and read transducer on the pole tip of head-slider 103（It is not shown）To read or be written data.When
When disc driver operates, spindle motor 102 makes 101 high speed rotation of disk, and thermally assisted magnetic head slider 103 is because of disk 101
Rotation and generate air pressure and disk 101 above flight.The thermally assisted magnetic head slider 103 under the control of voice coil motor,
It is moved with radial direction on the surface of disk 101.For different tracks, thermally assisted magnetic head slider 103 can be from magnetic disk surface
It reads data or data is write into disk 101.
A~2d is please referred to Fig.2, shows the simplification step of the cutting and polishing of the head-slider 103 in the fabrication process.
First, the wafer of multiple read/write transducers will be arranged with（It is not shown）Cut into multiple long strips 210, Mei Yichang
Shape item 210 has multiple head-sliders 211.Normally, the long strips 210 are cut using diamond cut off wheel 212.Tool
Body, which is located above the air bearing face of long strips 210, and circumgyration incision wheel 212 is along scheduled path after positioning
It is cut, to isolate independent head-slider 211.Then, by a polished film 213 to the side of head-slider 211
It is polished to predetermined dimension, ultimately forms head-slider 211.
However, cutting action and the polishing process separation of such processing method, therefore the procedure of processing of head-slider 211 becomes
It is complicated, need to frequently replace processing machine, it appears take, efficiency it is low.Moreover, in cutting process, dirt is easy to remain in magnetic
The surface of head slider 211 causes cleaning difficult.In addition, the outer edge in the air bearing face of the head-slider 211 processed is sharp
It is rough, to be unfavorable for air bearing on the air bearing face of head-slider 211；If moreover, in head-slider 211 in magnetic
Unexpectedly magnetic recording surface is hit in left and right in flight course above recording surface, and the sharp outer edge in the air bearing face can be right
Magnetic recording surface causes the injury that can not be saved.
It would therefore be highly desirable to a kind of processing unit (plant) and processing method of improved head-slider, to overcome drawbacks described above.In invention
Hold
One of the objects of the present invention is to provide a kind of processing unit (plant)s of head-slider simple in structure, can independently divide
The surface of head-slider is polished while from single head-slider, is conducive to carry to be formed on the surface of head-slider
The circular arc chamfering of high performance of magnetic-head sliding block.
Another object of the present invention is to provide a kind of processing methods for the head-slider being simple and efficient, and can independently divide
The surface of head-slider is polished while from single head-slider, is conducive to carry to be formed on the surface of head-slider
The circular arc chamfering of high performance of magnetic-head sliding block.
To achieve the above object, the present invention provides a kind of processing unit (plant) of head-slider, for cut head-slider and
At least outer edge in the air bearing face of the head-slider forms circular arc chamfering comprising cutter wheel device and with it is described
The connected control device of cutter wheel device.The cutter wheel device include an at least break bar, the break bar include root and with it is described
The junction at the connected top in root, the root and the top forms spill arc portion, and the cutter wheel device cutting magnetic head is slided
When block circular arc chamfering is formed on the outer edge of head-slider by the spill arc portion.The control device includes making institute
State the rotating mechanism of cutter wheel device rotation.
Preferably, the root and the top are in cylindrical shape, the root has first diameter, the top tool
There are second diameter, the first diameter to be less than second diameter.
Preferably, the end of the root is in smooth arc surfaced.
As a preferred embodiment, the control device further includes that the control cutter wheel device is held in the vertical air
The elevation control mechanism therefor moved on the direction of section.
Correspondingly, the present invention provides a kind of processing method of head-slider comprising：Rate-determining steps rotate the break bar
Device；And cutting step, the root vertically contact the edge of the cutting part of the head-slider, by the spill arc
Outer edge of the portion in the air bearing face forms circular arc chamfering.
Preferably, further including adjusting the cutter wheel device to move up in the direction in the air bearing face perpendicular to head-slider
It is dynamic.
Compared with prior art, cutter wheel device of the invention forms spill arc portion in the junction at root and top, therefore
By root and spill arc portion, which can be to the surface of head-slider while long strips are cut into head-slider
It is polished, i.e., forms circular arc chamfering in the outer edge in the air bearing face of head-slider.On the one hand, which deposits
The surface that dirt remains in head-slider is reduced in cutting process making head-slider；On the other hand, when head-slider exists
Above magnetic recording surface when flight, the presence of the circular arc chamfering makes air be easier to be carried on the air bearing face of head-slider
On, to conducive to its flight.Moreover, if unexpectedly magnetic recording surface, the circle are hit in left and right in flight course in head-slider
Arc chamfering can mitigate injury of the head-slider to magnetic recording surface.And the processing unit (plant) of the present invention is simple in structure, processing method is fast
It is prompt efficient.
By description below and in conjunction with attached drawing, the present invention will become more fully apparent, these attached drawings are for explaining the present invention
Embodiment.
Description of the drawings
Fig. 1 a are the partial perspective view of traditional HDD.
Fig. 1 b are the partial top view of tradition HGA.
Fig. 2 a~2d illustrate a kind of process of traditional head-slider.
Fig. 3 is the stereogram of the HDD of the present invention.
Fig. 4 is the structure diagram of one embodiment of the processing unit (plant) of the head-slider of the present invention.
Fig. 5 is the sectional view of one embodiment of the cutter wheel device of the processing unit (plant) of the head-slider of the present invention.
Fig. 6 a~6b are the one group of schematic diagram of the processing unit (plant) of the head-slider of the present invention at work.
Fig. 7 a~7c are another group of schematic diagram of the processing unit (plant) of the head-slider of the present invention at work.
Fig. 8 is the simplified flowchart of one embodiment of the processing method of the head-slider of the present invention.
Specific implementation mode
The several different most preferred embodiments of the present invention are illustrated below with reference to the accompanying drawings, wherein identical label generation in different figures
The identical component of table.As described above, essence of the invention is that the processing unit (plant) and processing method of a kind of head-slider, it can be only
The surface of head-slider is polished while vertical separation single head-slider, to form profit on the surface of head-slider
In the circular arc chamfering for improving performance of magnetic-head sliding block.
Fig. 3 is the stereogram of one embodiment of the HDD of the present invention.The HDD300 includes HGA310, is connect with HGA310
Actuating arm 304, a series of spinning disks 301, and to drive the spindle motor 302 of disk 301, said elements are respectively mounted
In a shell 309.The structure of HDD300 of the present invention is without being limited thereto, such as spinning disk 301, HGA310 and actuating arm 304
Quantity can also be one.Every HGA310 include cantilever part 390 and be carried on the cantilever part 390 in rotary magnetic
The head-slider 430 of data is read or is written on disk 301.The cantilever part 390 includes the load beam, substrate, strand being assembled together
Fitting and flexible element.Specifically, which is supported by flexible element.
Fig. 4 is the structure diagram of one embodiment of the processing unit (plant) 400 of head-slider 430 of the present invention.As shown, should
Processing unit (plant) 400 includes cutter wheel device 410 and the control device 420 being connected with the cutter wheel device.As shown in figure 5, the break bar
Device 410 includes an at least break bar 411, which includes making the root 412 and be connected with the root 412 that cutting is used
Make the top 413 that support is used.The root 412 and top 413 are in cylindrical shape, which has first diameter, top
413 there is second diameter, the first diameter to be less than second diameter.And gentler uniform when being cutting head-slider 430, root
412 end is in smooth arc surfaced.Specifically, the junction at root 412 and top 413 forms spill arc portion 414, due to this
The presence of spill arc portion 414 so that break bar 411 can be in the air bearing face 415 of head-slider 430 when cutting head-slider 430
Outer edge on formed circular arc chamfering 416.Referring to FIG. 4, the control device 420 includes the rotation for making the cutter wheel device 410 rotate
Rotation structure 421 and control the elevation control mechanism therefor that the cutter wheel device 410 moves on the direction of vertical air loading end 415
422.Optionally, which can be by manually controlling.
Fig. 6 a~6b are the schematic diagram of the processing unit (plant) 400 of the head-slider of the present invention at work.First, several break bars
411 are positioned on long strips 500 to be split, and specifically, the root 412 of break bar 411 is located at the upper of magnetic head cutting part 501
Side.Then, control device 420 controls break bar 411 and rotates.The long strips 500 move under the break bar 411 along magnetic head cutting part 501
It is dynamic, therefore the root 412 of break bar 411 is contacted with magnetic head cutting part 501, to cut into head-slider 430.When break bar 411
Spill arc portion 414 forms circular arc chamfering 416 when contact magnetic head sliding block 430 in rotation in the outer edge in air bearing face 415.
As a preferred embodiment, as shown in Fig. 7 a~7c, when the processing unit (plant) 400 of the present invention is to different height
When long strips 500 are processed, which may also include elevation control mechanism therefor 422 so that it is carried in vertical air
It is moved on the direction in face 415, to adapt to the long strips 500 of different height.
Fig. 8 is the simplified flowchart of one embodiment of the processing method of the head-slider of the present invention.Specifically, the step
Including：
801, rate-determining steps rotate cutter wheel device 410.
802, cutting step, the edge of the vertically cutting part of contact magnetic head sliding block 430 of root 412, by spill arc portion
414 outer edge in air bearing face 415 forms circular arc chamfering 416.
Preferably, further including adjusting cutter wheel device 410 perpendicular to the air bearing face of head-slider 430 in step 801
It is moved on 415 direction.
In conclusion the cutter wheel device 410 of the present invention forms spill arc portion in the junction at root 412 and top 413
414, therefore by root 412 and spill arc portion 414, which is cutting into head-slider 430 by long strips 500
While the surface of head-slider 430 can be polished, i.e. the outer edge in the air bearing face 415 of head-slider 430
Form circular arc chamfering 416.On the one hand, the presence of the circular arc chamfering 416 makes head-slider 430 reduce dirt in cutting process
Remain in the surface of head-slider 430；On the other hand, when 430 flight above magnetic recording surface of head-slider, which falls
The presence at angle 416 makes air be easier to be carried on the air bearing face 415 of head-slider, to conducive to its flight.Moreover,
If unexpectedly magnetic recording surface is hit in left and right in flight course in head-slider 430, which can mitigate magnetic head cunning
Injury of the block 430 to magnetic recording surface.The processing unit (plant) 400 of the present invention is simple in structure, can reduce processing cost.The present invention's adds
Work method quickness and high efficiency, is suitable for popularization and application.
Above disclosed is only presently preferred embodiments of the present invention, cannot limit the right of the present invention with this certainly
Range, therefore according to equivalent variations made by scope of the present invention patent, be still within the scope of the present invention.
Claims (6)
1. a kind of processing unit (plant) of head-slider, for cut head-slider and the air bearing face of the head-slider extremely
A few outer edge forms circular arc chamfering, which is characterized in that including：
Cutter wheel device, the cutter wheel device include an at least break bar, and the break bar includes root and is connected with the root
The junction at top, the root and the top forms spill arc portion, by institute when the cutter wheel device cuts head-slider
It states spill arc portion and forms circular arc chamfering on the outer edge of head-slider；And
The control device being connected with the cutter wheel device, the control device include the whirler for making the cutter wheel device rotation
Structure.
2. processing unit (plant) as described in claim 1, it is characterised in that：The root and the top are in cylindrical shape, institute
Stating root, there is first diameter, the top there is second diameter, the first diameter to be less than second diameter.
3. processing unit (plant) as described in claim 1, it is characterised in that：The end of the root is in smooth arc surfaced.
4. processing unit (plant) as described in claim 1, it is characterised in that：The control device further includes the control cutter wheel device
The elevation control mechanism therefor moved on the direction in the vertical air bearing face.
5. a kind of processing method carrying out head-slider using processing unit (plant) as described in claim 1, which is characterized in that packet
It includes：
Rate-determining steps rotate the cutter wheel device；And
Cutting step, the root vertically contact the edge of the cutting part of the head-slider, exist by the spill arc portion
The outer edge in the air bearing face forms circular arc chamfering.
6. processing method as claimed in claim 5, it is characterised in that：Further include adjusting the cutter wheel device perpendicular to magnetic head
It is moved on the direction in the air bearing face of sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101975.9A CN104078053B (en) | 2013-03-27 | 2013-03-27 | The processing unit (plant) and processing method of head-slider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101975.9A CN104078053B (en) | 2013-03-27 | 2013-03-27 | The processing unit (plant) and processing method of head-slider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104078053A CN104078053A (en) | 2014-10-01 |
| CN104078053B true CN104078053B (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310101975.9A Active CN104078053B (en) | 2013-03-27 | 2013-03-27 | The processing unit (plant) and processing method of head-slider |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH097149A (en) * | 1995-06-22 | 1997-01-10 | Fuji Electric Co Ltd | Method for working magnetic head slider |
| DE19603361C2 (en) * | 1996-01-31 | 2000-10-12 | Fischer G Rohrverbindungstech | Pipe cutting and pipe chamfering device for a thin-walled pipe |
| JP3506419B2 (en) * | 1999-10-04 | 2004-03-15 | Ｔｄｋ株式会社 | Method of manufacturing magnetic head slider and method of fixing bar |
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| CN104078053A (en) | 2014-10-01 |
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