CN105374368B - Magnetic head arm loading force test machine setting method and HGA tooling - Google Patents
Magnetic head arm loading force test machine setting method and HGA tooling Download PDFInfo
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- CN105374368B CN105374368B CN201410384955.1A CN201410384955A CN105374368B CN 105374368 B CN105374368 B CN 105374368B CN 201410384955 A CN201410384955 A CN 201410384955A CN 105374368 B CN105374368 B CN 105374368B
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Abstract
The present invention relates to a kind of magnetic head arm loading force test machine setting method and HGA toolings, wherein, which includes: that magnetic-head spring lamination is fixed in the HGA tooling to the transmission arm in analog magnetic head arm component；Test disc is fixed on the magnetic head arm loading force test machine, relative to the magnetic-head spring lamination；And the test of magnetic head loading system power is carried out to complete the setting to the magnetic head arm loading force test machine to the magnetic-head spring lamination opposite with the test disc.The HGA tooling includes ontology, connector and actuator.By the present invention in that carrying out the setting of magnetic head arm loading force test machine with HGA tooling, Material Cost is not only reduced, simplifies manufacture craft, shortens fabrication cycle, convenient for saving, and eliminates testing differentia caused by different altitude datums.
Description
Technical field
The present invention relates to hard disc of computer field more particularly to a kind of magnetic head arm loading force test machine setting method and
HGA tooling.
Background technique
Hard disk is the heart of computer data storage, is the important guarantee of computer system stable operation.With computer
With the rapid development of information industry, every computer requires to store a large amount of data, figure, sound, image or video file
Etc., so that more stringent requirements are proposed for capacity and performance to the hard disk currently as computer Primary memory.Hard disk drives
Device industry is moved also facing to increasing market demand and higher and higher quality requirement.
Magnetic head is the tool for being written and read work in hard disk to disc, is the critical component that hard disk reads data, its master
Act on is to convert electric signal for the magnetic information being stored on hard disc to transmit outward.Magnetic head arm (HSA, Head
Stack Assembly) by transmission arm (Hook-up) and magnetic-head spring lamination (HGA, Head Gimbals Assembly)
Assemble, is that the direct mechanical part for supporting magnetic head addressing and reading determines that its is right due to the particularity of its working performance
In the high-precision requirement of combination assembly.
Magnetic head loading system power test be as detection HSA product whether a He Ge very important link.Magnetic head loading system
Power refers to the pressure that HGA spring leaf is added in advance on magnetic head, for balance magnetic head in flight on the disk to run at high speed magnetic head with
The air support force generated between disk.Since the position HGA Slider is not allow for any contact, institute in entire production procedure
It can generally be selected except the band of position Slider according to the requirement of HSA product with the test position that magnetic head loading system power is tested
In other positions, such as the position Lift-tab.
Currently, common magnetic head arm loading force test machine setting method is using magnetic head arm loading force test machine
The function for cooperating HSA to complete from Slider to Lift-tab between two positions derives, to complete magnetic head arm loading force
The setting of test machine, to carry out the detection of subsequent HSA product.Steps are as follows for specific function derivation: (1) assembling multiple HGA
On HSA；(2) Slider test disc is fixed on magnetic head arm loading force test machine, Slider test disc is enabled to be located at
(multiple altitude datums are respectively the loading force test surfaces and magnetic head arm loading force of the magnetic head of multiple HGA to multiple altitude datums
The distance between positioning reference plane of test machine), magnetic head loading system power test is carried out to the position Slider of multiple HGA respectively, is obtained
To the set Y of a load force value y based on multiple altitude datum, Slider test panel is (3) substituted with Lift-tab test disc
Piece and be fixed on magnetic head arm loading force test machine, enable Lift-tab test disc be located at multiple altitude datums (multiple benchmark
Height is respectively between the loading force test surfaces of magnetic head and the positioning reference plane of magnetic head arm loading force test machine of multiple HGA
Distance), magnetic head loading system power test is carried out to the position Lift-tab of multiple HGA respectively, it is high based on multiple benchmark to obtain one
The set X of the load force value x of degree；(4) linear regression analysis is carried out to the set X of the value set Y of loading force y and load force value x,
Obtain formula Y=kX+b, wherein k, b are a constant；(5) the life to spring arm assemblies loading force test machine is completed according to the formula
The setting of production.
But the magnetic head arm loading force test machine setting method is due to using HSA to cooperate magnetic head arm loading force
Test machine completes the function from Slider to Lift-tab between two positions and derives and have the drawback that because of a HSA
Comprising a Hook-Up and multiple HGA, not only Material Cost is high, and manufacture craft is cumbersome and the period is long, and in the use of HSA
Be easy to cause entire HSA to scrap in the process, once some HGA damage, then entire HSA scraps, and due to HSA need occupy compared with
Big shelf space is easy the deformation because of some HGA caused by the unpredictable reason such as colliding, shaking during preservation,
Also entire HSA is easy to cause to scrap；In addition, the multiple HGA being assemblied on same HSA correspond to multiple and different altitude datums,
It will lead to test to have differences.
Summary of the invention
The purpose of the present invention is to provide a kind of magnetic head arm loading force test machine setting method and HGA toolings, are used for
Solve to cooperate using HSA in the prior art Material Cost height, production when completing the setting to magnetic head arm loading force test machine
Technique is cumbersome and the period is long, easily scraps and the problems such as there are testing differentias.
In order to achieve the above objectives, technical solution proposed by the invention are as follows:
A kind of magnetic head arm loading force test machine setting method of the invention comprising: magnetic-head spring lamination is consolidated
Due on the HGA tooling to the transmission arm in analog magnetic head arm component；Test disc is fixed on the magnetic head arm
On loading force test machine, relative to the magnetic-head spring lamination；And to the magnetic head bullet opposite with the test disc
Spring assembly carries out the test of magnetic head loading system power to complete the setting to the magnetic head arm loading force test machine.
Further, described that test disc is fixed on the magnetic head arm loading force test machine, relative to institute
Stating magnetic-head spring lamination includes: that the test disc includes the first test disc and the second test disc；When first survey
Examination disc is fixed on the magnetic head arm loading force test machine, and the magnetic-head spring lamination is to described the corresponding thereto
One test disc force, obtains one first altitude datum；And add when the second test disc is fixed on the magnetic head arm
It carries on power test machine, the magnetic-head spring lamination obtains one second base to the second test disc force corresponding thereto
Quasi- height.
Further, described that the survey of magnetic head loading system power is carried out to the magnetic-head spring lamination opposite with the test disc
Examination includes: that will be fixed on the magnetic in the HGA tooling with the setting for completing to the magnetic head arm loading force test machine
Head spring lamination is repeatedly replaced, until replacement number reaches a preset value；To each magnetic-head spring lamination point
Not carry out magnetic head loading system power test, obtain load force value y corresponding with each magnetic-head spring lamination and load force value x；
Multiple load force value y and load force value x are respectively combined, obtain the collection of the set Y and load force value x of a load force value y
Close X；Linear regression analysis is carried out to the set Y and set X, obtains a formula Y=kX+b, wherein k, b are a constant；And it will
The formula substitutes into the magnetic head spring arm assemblies loading force test machine, to complete to survey the magnetic head spring arm assemblies loading force
The setting of test-run a machine.
Further, described that magnetic head loading system power test is carried out respectively to each magnetic-head spring lamination, obtain with often
The corresponding load force value y of one magnetic-head spring lamination and load force value x includes: that enable the first test disc be located at described
First altitude datum carries out magnetic head to the first position of the magnetic-head spring lamination opposite with the first test disc and adds
Power test is carried, the load force value y is obtained；And enable it is described second test disc be located at second altitude datum, to it is described
The second position of the opposite magnetic-head spring lamination of second test disc carries out the test of magnetic head loading system power, obtains the load
Force value x.
Further, one first altitude datum that obtains includes: that the HGA tooling is equipped with for carrying the magnetic head
The loading end of spring lamination and the first positioning reference plane, the second positioning reference plane for realizing two kinds of different heights, with institute
State the distance between the second positioning reference plane and the loading end be one first height, with first positioning reference plane with it is described
The distance between loading end is one second height；When the magnetic-head spring lamination is located at first height, the magnetic head
Spring lamination obtains a positive test loading force to the first test disc force corresponding thereto, when the magnetic head spring
When piece component is located at second height, the magnetic-head spring lamination to corresponding thereto it is described first test disc force with
Obtain an anti-test loading force；And when the difference of the positive test loading force and the anti-test loading force is less than a preset value
When, the height where being fixed on the first test disc on the magnetic head arm loading force test machine is described first
Altitude datum.
Further, one second altitude datum that obtains includes: that the HGA tooling is equipped with for carrying the magnetic head
The loading end of spring lamination and the first positioning reference plane, the second positioning reference plane for realizing two kinds of different heights, with institute
State the distance between the second positioning reference plane and the loading end be one first height, with first positioning reference plane with it is described
The distance between loading end is one second height；When the magnetic-head spring lamination is located at first height, the magnetic head
Spring lamination obtains a positive test loading force to the second test disc force corresponding thereto, when the magnetic head spring
When piece component is located at second height, the magnetic-head spring lamination to corresponding thereto it is described second test disc force with
Obtain an anti-test loading force；And when the difference of the positive test loading force and the anti-test loading force is less than a preset value
When, the height where being fixed on the second test disc on the magnetic head arm loading force test machine is described second
Altitude datum.
A kind of HGA tooling of the invention, the transmission arm in analog magnetic head arm component are completed with cooperation to magnetic head arm
The setting of loading force test machine a comprising ontology, a connection piece and an actuator, wherein the ontology includes being sequentially connected
A supporting part and a positioning region, the supporting part be equipped with a loading end for carrying the magnetic-head spring lamination, institute
Positioning region is stated equipped with one first positioning reference plane and one second positioning reference plane for realizing two kinds of different heights, with described
The distance between second positioning reference plane and the loading end are one first height, are held with first positioning reference plane with described
The distance between section is one second height, and a connection first positioning reference plane and described the are additionally provided on the positioning region
The positioning reference holes of two positioning reference planes are so that the HGA tooling can be positioned on the magnetic head arm loading force test machine；
The connector is movably arranged on the ontology, which is provided with a compressed part, the compressed part is relative to the loading end
With the fixation magnetic-head spring lamination on the ontology；The actuator passes through the ontology and connects with the connector
It connects, so that the compressed part of the connector can be close to or far from the loading end.
Further, the HGA tooling further includes a guide pin, and the guide pin sequentially passes through the company from top to down
Fitting and the supporting part, with the fixation connector on the ontology.
Further, the two sides up and down of the positioning region are recessed on one bit-avoiding slot and once bit-avoiding slot respectively inwards, with
Can be placed in the HGA tooling on the magnetic head arm loading force test machine.
Further, the connector includes a substrate and an accommodating cavity, the accommodating cavity position connecting with the substrate
In the surface of the loading end, the compressed part includes a pressure head and a reset spring, and the pressure head passes through the reset bullet
Spring and be fixed in the accommodating cavity.
Further, the actuator includes proficiency arbor and a reset spring, and the Handle axis is from bottom to up successively
It is connected on the connector across the reset spring, the supporting part and the connector.
Compared with prior art, of the invention a kind of magnetic head arm loading force test machine setting method and HGA tooling, tool
Have following the utility model has the advantages that the present invention is added using the HGA tooling cooperation magnetic head arm of the transmission arm in analog magnetic head arm component
It carries the function that power test machine is completed between magnetic-head spring lamination different location to derive, to complete to survey magnetic head arm loading force
The setting of test-run a machine, not only reduces Material Cost, simplifies manufacture craft, shortens fabrication cycle, convenient for saving, and eliminates
Testing differentia caused by different altitude datums.
Detailed description of the invention
Fig. 1 is the constitutional diagram of HGA tooling of the invention.
Fig. 2 is the explosive view of HGA tooling of the invention.
Fig. 3 is magnetic head arm loading force test machine setting method flow chart of the invention.
Fig. 4 is the magnetic head arm loading force test machine setting method flow chart of one embodiment of the invention.
Wherein, the reference numerals are as follows:
10 HGA toolings, 1 ontology, 11 supporting parts, 111 loading ends, 112 intercommunicating pores, 113 pilot holes, 114 guide pins, 115
Butt hole, 12 positioning regions, 121 positioning reference holes, bit-avoiding slot on 122,123 lower bit-avoiding slots, 2 connectors, 21 substrates, 212 connections
Hole, 213 pilot holes, 214 jacks, 22 accommodating cavities, 23 compressed parts, 231 pressure heads, 232 reset springs, 233 jacks, 234 bolts, 3
Actuator, 31 Handle axis, 311 butt holes, 312 bolts, 32 reset springs, 4 HGA, 41 magnetic heads, 42 spring leafs, 43 fixation holes, P
First positioning reference plane, the second positioning reference plane of N, S501 ~ S502 step, S601 ~ S607 step.
Specific embodiment
Below with reference to attached drawing, the present invention is further described in detail.
Please refer to Fig. 1, Fig. 2, a kind of HGA tooling provided by the invention is the Hook-up simulated in HSA, and HSA is replaced to match
It closes magnetic head arm loading force test machine and the test of magnetic head loading system power is carried out to the HGA in HSA.The HGA tooling 10 includes an ontology
1, a connection piece 2 and an actuator 3, wherein ontology 1 includes a sequentially connected supporting part 11 and a positioning region 12, supporting part
11 are equipped with a loading end 111 for carrying HGA 4 in ontology 1, and positioning region 12 is equipped with one first positioning reference plane P and the
For two positioning reference plane N for realizing two different height, a positioning reference holes 121 are connected to the first positioning reference plane P and the
Two positioning reference plane N so that HGA tooling 10 can 180 ° turningly by its front or back be located in magnetic head arm loading force survey
On test-run a machine；Connector 2 is equipped with a compressed part 21, which is located at the surface of loading end 111, with fix HGA 4 in
On ontology 1；Actuator 3 passes through ontology 1 and connect with connector 2, so that supporting part 11 can be arranged in connector 2 up and downly
Loading end 111 on, even if also the compressed part 21 of connector 2 can be free in order to HGA 4 close to or far from loading end 111
It picks and places in loading end 111.
Specifically, the supporting part 11 is substantially in alphabetical " L " type, for ease of description, two levels different to its height
Face is named respectively, and high horizontal plane is a top surface, and the lower horizontal plane extended outward is loading end 111.The carrying
The loading end 111 in portion 11 is equipped with a butt hole 115, the consolidating HGA 4 of compressed part 21 of 115 fit connection 2 of butt hole
Determine hole 43 to be pressed on loading end 111.The top surface of the supporting part 11 is respectively equipped with an intercommunicating pore 112 and a pilot hole 113, the connection
Hole 112 is for actuator 3 passes through its inside and connect with connector 2, and the pilot hole 113 is for one for guaranteeing connector 2 not
The guide pin 114 of deflection passes through.
The positioning reference holes 121 of the connection the first positioning reference plane P and the second positioning reference plane N of positioning region 12 for
One positioning mechanism pass through so that HGA tooling 10 can 180 ° turningly by its front or back be located in magnetic head arm loading force survey
On test-run a machine.It is also recessed on one bit-avoiding slot 122 and once bit-avoiding slot 123 respectively inwards in the two sides up and down of the positioning region 12, by
In the evacuation effect of two bit-avoiding slots (122,123) HGA tooling 10 is preferably bonded and is placed on magnetic head arm
On loading force test machine.In the present embodiment, HGA is made by positioning reference holes 121, upper bit-avoiding slot 122 and lower bit-avoiding slot 123
Its front or back can be turningly placed on magnetic head arm loading force test machine by tooling 10 with 180 °, by with HGA work
The the first positioning reference plane P or the second positioning reference plane N of 10 positioning region 12 are filled as magnetic head arm loading force test machine not
Same positioning reference plane, realizes two different height, i.e., is with the distance between the second positioning reference plane N and loading end 111
One first height is one second height with the distance between the first positioning reference plane P and loading end 111, when HGA 4 is in first
When height, HGA 4 obtains a positive test loading force to a test disc force corresponding thereto, when HGA 4 is high in second
When spending, HGA 4 exerts a force to the test disc to obtain an anti-test loading force, by comparing the difference of positive and negative test loading force
Come adjust the test disc height (i.e. test disc and the positioning reference plane of magnetic head arm loading force test machine between away from
From) altitude datum is made up to carry out subsequent magnetic head loading system power test.
The connector 2 is substantially in digital " 7 " type to coincide with supporting part 11 comprising a substrate 21 and an accommodating cavity
22, substrate 21 is located at the surface of the top surface of supporting part 11, and the accommodating cavity 22 connecting with substrate 21 is located at the carrying of supporting part 11
The surface in face 111.An intercommunicating pore 212, a pilot hole 213 and a jack 214, the intercommunicating pore are respectively equipped on the substrate 21
212 for actuator 3 passes through its inside and is connected on connector 2, and the pilot hole 213 is for one for guaranteeing connector 2 not
The guide pin 114 of deflection passes through, and the jack 214 is for fixing actuator 3 in connector 2.Compressed part 21 is set to the appearance
It sets in chamber 22, which includes a pressure head 231 and a reset spring 232, is equipped with two jacks in the side of the accommodating cavity 22
233, pressure head 231 initially passes through reset spring 232, respectively correspondingly passes through two jacks 233 by two bolts 234 and is clamped on accommodating cavity
In 22.In the present embodiment, allow pressure head 231 preferably by HGA 4 using the elasticity of the reset spring 232 of compressed part 23
It is pressed on ontology 1, to help to improve the accuracy of HGA loading force test value.
The reset spring 32 that the actuator 30 is passed through including proficiency arbor 31 and one for the Handle axis 31, Handle axis 31 is certainly
It is lower and Shangdi sequentially passes through on the substrate 21 of the intercommunicating pore 112 and connector 2 on the supporting part 11 of reset spring 32, ontology 1
After intercommunicating pore 212, then by a bolt 312 sequentially pass through a jack 214 of 21 side of substrate of connector 2 in Handle axis 31
The butt hole 311 being equipped with, and be fixed on the substrate 21 of connector 2.In the present embodiment, the reset of actuator 3 is utilized
The elasticity of spring 32 moves up and down the actuator 3 preferably drive connection part 2 along the vertical direction, further such that
HGA 4 is freely picked and placed in which can be convenient on the loading end 111 of the supporting part 11 of ontology 1.
The HGA tooling 10 further includes a guide pin 114, which sequentially passes through the base of connector 2 from top to down
Pilot hole 213 on plate 21 and the pilot hole 113 on the supporting part 11 of ontology 1, and connector 2 is fixed on to the carrying of ontology 1
In portion 11.In the present embodiment, make connector 2 in the carrying for being fixed on ontology 1 by the guiding role of the guide pin 114
When in portion 11 can not deflection, so as to which more accurately HGA 4 is fixed on the loading end 111 of supporting part 11.
Referring to Fig. 3, a kind of magnetic head arm loading force test machine setting method provided by the invention includes:
Step 501, HGA 4 is fixed in the HGA tooling 10 to simulate the Hook-up in HSA；And by test panel
Piece is fixed on magnetic head arm loading force test machine, relative to HGA 4.
Step 502, the test of magnetic head loading system power is carried out to the HGA 4 opposite with test disc, to complete to magnetic head arm
The setting of loading force test machine.
Referring to Fig. 4, testing now in conjunction with Fig. 1, Fig. 2 and Fig. 3 the magnetic head arm loading force of one embodiment of the invention
Machine setting method is described in detail, the magnetic head carried out using above-mentioned HGA tooling 10 cooperation magnetic head arm loading force test machine
Arm component loading force test machine setting method the following steps are included:
Step 601, a HGA 4 is fixed in HGA tooling 10, (hereinafter referred to as with the position Slider loading force disc
For Slider disc) as first test disc be fixed on magnetic head arm loading force test machine, make HGA magnetic head 41 relative to
Slider disc.
Specifically, connector 2 is pushed up using the actuator 3 of HGA tooling 10, HGA 4 is placed on to the carrying of ontology 1
On the loading end 111 in portion 11,3 drag down connector 2 of actuator is recycled, the compressed part 23 in 2 accommodating cavity 22 of connector is made
Pressure head 231 sequentially pass through the butt hole on a fixation hole 41 of HGA 4 and the loading end 111 of the supporting part 11 of ontology 1
115, and the HGA 4 is fixed on the ontology 1 of HGA tooling 10 relative to Slider disc.
Step 602, the difference of positive and negative test loading force when being located at two kinds of different heights by comparing HGA 4 is adjusted
The height of Slider disc obtains a Slider disc when the difference of positive and negative test loading force is less than first preset value
First altitude datum.
Specifically, using the lower bit-avoiding slot 123 and positioning reference holes 121 of the positioning region 12 of HGA tooling 10, by HGA tooling
10 face-up are placed on positioning mechanism, and the magnetic head 41 of HGA 4 is contacted with the front of Slider disc, at this point, with positioning
The second positioning reference plane N in portion 12 is positioning reference plane, between the loading end 111 and the positioning reference plane where HGA 4 away from
Highly, apply a pressure to Slider disc using the spring leaf 42 of HGA 4 from for first, it is corresponding with first height to obtain one
Positive test loading force.
HGA tooling 10 is overturn 180 °, that is, utilizes the upper bit-avoiding slot 122 and positioning datum of the positioning region 12 of HGA tooling 10
10 reverse side of HGA tooling is placed on positioning mechanism by hole 121 upward, and the magnetic head 41 of HGA 4 is contacted with the anti-of Slider disc
Face, at this point, loading end 111 and the positioning using the first positioning reference plane P of positioning region 12 as positioning reference plane, where HGA 4
The distance between datum level be second height, using HGA 4 spring leaf 42 to Slider disc apply a pressure, obtain one with
The corresponding anti-test loading force of second height.
The difference of more positive and negative test loading force adjusts the height of Slider disc, when the positive and negative test loading force it
When difference is less than first preset value, the height where Slider disc is the first altitude datum at this time, otherwise, repeats step
602。
Certainly, it is not intended to limit the testing sequence of positive and negative test loading force in the present embodiment, does not also limit the first preset value
Range, it is preferred that the range of the first preset value is 0-0.05g.
Step 603, using the position Lift-tab loading force disc as the second test disc (hereinafter referred to as Lift-tab disk
Piece) substitution Slider disc, which is fixed on magnetic head arm loading force test machine, HGA magnetic head phase is made
For Lift-tab disc.
Step 604, the difference of positive and negative test loading force when being located at two kinds of different heights by comparing HGA 4 is adjusted
The height of Lift-tab disc obtains a Lift-tab disk when the difference of positive and negative test loading force is less than second preset value
Second altitude datum of piece.
Specifically, using the lower bit-avoiding slot 123 and positioning reference holes 121 of the positioning region 12 of HGA tooling 10, by HGA tooling
10 face-up are placed on positioning mechanism, and the magnetic head 41 of HGA 4 is contacted with the front of Lift-tab disc, at this point, with fixed
The second positioning reference plane N in position portion 12 is positioning reference plane, between the loading end 111 and the positioning reference plane at 4 place HGA
Distance is the first height, applies a pressure to Lift-tab disc using the spring leaf 42 of HGA 4, obtains one and first height
Corresponding positive test loading force.
HGA tooling 10 is overturn 180 °, that is, utilizes the upper bit-avoiding slot 122 and positioning datum of the positioning region 12 of HGA tooling 10
10 reverse side of HGA tooling is placed on positioning mechanism by hole 121 upward, and the magnetic head 41 of HGA 4 is contacted with Lift-tab disc
Reverse side, at this point, the loading end 111 where HGA 4 is fixed with this using the first positioning reference plane P of positioning region 12 as positioning reference plane
The distance between position datum level is the second height, applies a pressure to Lift-tab disc using the spring leaf 42 of HGA 4, obtains
One anti-test loading force corresponding with second height.
The difference of more positive and negative test loading force adjusts the height of Lift-tab disc, when the positive and negative test loading force
Difference less than second preset value when, the height where Lift-tab disc is the second altitude datum at this time, otherwise, repeat walk
Rapid 604.
Certainly, it is not intended to limit the testing sequence of positive and negative test loading force in the present embodiment, does not also limit the second preset value
Range, it is preferred that the range of the second preset value is 0-0.05g.
Step 605, Slider disc is enabled to be located at the first altitude datum obtained in step 602, in HGA tooling 10
The first position of HGA 4, that is, position Slider carries out the test of magnetic head loading system power, obtains the load force value y of a position Slider.
Step 606, Lift-tab disc is enabled to be located at the second altitude datum obtained in step 604, in HGA tooling 10
The second position of HGA 4, that is, position Lift-tab carries out the test of magnetic head loading system power, obtains the load force value of a position Lift-tab
x。
It is noted that the execution sequence of step 605 and step 606 might not according to the progress in the present embodiment,
Step 605 can also be carried out after executing step 602, step 606 is carried out after executing step 604, as long as executing step
Load force value y has been obtained before rapid 607 and has loaded force value x, and the present invention is not limited thereto.
Step 607, judge whether a replacement number reaches a third preset value, if it is obtain a load force value y's
The set X of set Y and load force value x, while it being transferred to step 608, otherwise, another 4 ' (not shown) of HGA is fixed on HGA
With the HGA 4 before replacing, while return step 605 in tooling 10.
Specifically, if replacement number reaches third preset value, multiple and different HGA will be directed in step 605 and step 606
When carrying out the test of magnetic head loading system power respectively, obtained load force value y corresponding with every HGA and load force value x is respectively combined, and is obtained
The set X of the set Y and load force value x of a load force value y out, while being transferred to step 608.For example, set Y is load force value
{y1,y2,…,ynSet, set X be load force value { x1,x2,…,xnSet, wherein ynIndicate Slider disc position
When the first altitude datum, load force value y, x that the position Slider of n-th of HGA obtainsnIndicate that Lift-tab disc is located at the
When two altitude datums, load force value x, n≤third preset value that the position Lift-tab of n-th of HGA obtains.In the prior art,
Load force value y in set Y is based respectively on multiple and different altitude datums, and the load force value x in set X is also based respectively on multiple
Different altitude datums, and in the present invention, the load force value y in set Y is all based on the first altitude datum, the load in set X
Force value x is all based on the second altitude datum, eliminates testing differentia caused by different altitude datums with this.
If replacement number is not up to third preset value, connector 2 is pushed up using the actuator 3 of HGA tooling 10, by it
Preceding HGA 4 takes out, another HGA 4 ' is placed on the loading end 111 of the supporting part 11 of ontology 1, recycles actuator 3
Drag down connector 2 makes the pressure head 231 of the compressed part 23 in 2 accommodating cavity 22 of connector sequentially pass through the HGA 4 ' after replacement
A fixation hole 41 and the butt hole 115 on the loading end 111 of the supporting part 11 of ontology 1, and the HGA 4 ' after replacement is solid
It is scheduled on the ontology 1 of HGA tooling 10 with relative to Slider disc, while return step 605.
Certainly, the present embodiment not limits replacement number, and third preset value can be the integer not less than 2, excellent
Selection of land, third preset value are 30.
Step 608, the set Y according to obtained in step 607 and set X is completed to magnetic head arm loading force test machine
Setting.
Specifically, on magnetic head arm loading force test machine, the set of set Y and load force value x to load force value y
X carries out linear regression analysis, obtains formula Y=kX+b, wherein k, b indicate a constant, and formula substitution magnetic head arm is added
Power test machine is carried, to complete the setting of the production to magnetic head arm loading force test machine.
In conclusion HGA is a key components and parts of HSA, a HSA passes through punching by multiple HGA and Hook-Up
Hole technique assembles, and HGA tooling of the invention is a kind of auxiliary tool for simulating Hook-Up, for fixing a HGA.
Therefore, a kind of HGA tooling using simulation Hook-Up of the invention replaces HSA, cooperates magnetic head arm loading force test machine
The magnetic head arm loading force test machine setting method of progress not only reduces Material Cost, simplifies manufacture craft, shortens
Fabrication cycle, convenient for saving, and the load of the position Slider of multiple HGA by being obtained based on same first altitude datum
The set Y of force value y, and the load force value x of the position Lift-tab of multiple HGA that is obtained based on same second altitude datum
Set X eliminates testing differentia caused by different altitude datums.
Above content, only presently preferred embodiments of the present invention, are not intended to limit embodiment of the present invention, and this field is general
Logical technical staff's central scope according to the present invention and spirit can very easily carry out corresponding flexible or modification, therefore originally
The protection scope of invention should be subject to protection scope required by claims.
Claims (10)
1. a kind of magnetic head arm loading force test machine setting method characterized by comprising
Magnetic-head spring lamination is fixed in the HGA tooling to the transmission arm in analog magnetic head arm component；The HGA work
It loads onto and is equipped with the loading end for carrying the magnetic-head spring lamination and the first positioning base for realizing two kinds of different heights
Quasi- face, the second positioning reference plane；
Test disc is fixed on the magnetic head arm loading force test machine, relative to the magnetic-head spring lamination；
The distance between loading end and second positioning reference plane where the magnetic-head spring lamination are the first height, alternatively, institute
The distance between loading end and first positioning reference plane where stating magnetic-head spring lamination are the second height；
When magnetic-head spring lamination is in the first height, magnetic-head spring lamination to one corresponding thereto test disc force with
A positive test loading force is obtained, when magnetic-head spring lamination is in the second height, magnetic-head spring lamination is to the test disc
Force adjusts the height of the test disc by comparing the difference of positive and negative test loading force to obtain an anti-test loading force
An altitude datum is made up to carry out subsequent magnetic head loading system power test；And
The test of magnetic head loading system power is carried out to complete to the magnetic to the magnetic-head spring lamination opposite with the test disc
The setting of head arm assembly loading force test machine.
2. magnetic head arm loading force test machine setting method according to claim 1, which is characterized in that described to test
Disc is fixed on the magnetic head arm loading force test machine, to include: relative to the magnetic-head spring lamination
The test disc includes the first test disc and the second test disc；
When it is described first test disc be fixed on the magnetic head arm loading force test machine, the magnetic-head spring lamination pair
The first test disc force corresponding thereto, obtains one first altitude datum；And
When it is described second test disc be fixed on the magnetic head arm loading force test machine, the magnetic-head spring lamination pair
The second test disc force corresponding thereto, obtains one second altitude datum.
3. magnetic head arm loading force test machine setting method according to claim 2, which is characterized in that it is described to institute
It states the opposite magnetic-head spring lamination of test disc and carries out the test of magnetic head loading system power to complete to add the magnetic head arm
Carry power test machine setting include:
The magnetic-head spring lamination being fixed in the HGA tooling is repeatedly replaced, until replacement number reaches one
Preset value；
Magnetic head loading system power test is carried out to each magnetic-head spring lamination respectively, is obtained and each head gimbal group
The corresponding load force value y of part and load force value x；
Multiple load force value y and load force value x are respectively combined, obtain the set Y and load force value x of a load force value y
Set X；
Linear regression analysis is carried out to the set Y and set X, obtains a formula Y=kX+b, wherein k, b are a constant；And
The formula is substituted into the magnetic head arm loading force test machine, to complete to test the magnetic head arm loading force
The setting of machine.
4. magnetic head arm loading force test machine setting method according to claim 3, which is characterized in that described to each
The magnetic-head spring lamination carries out magnetic head loading system power test respectively, obtains add corresponding with each magnetic-head spring lamination
Carrying force value y and load force value x includes:
The first test disc is enabled to be located at first altitude datum, to the magnetic head opposite with the first test disc
The first position of spring lamination carries out the test of magnetic head loading system power, obtains the load force value y；And
The second test disc is enabled to be located at second altitude datum, to the magnetic head opposite with the second test disc
The second position of spring lamination carries out the test of magnetic head loading system power, obtains the load force value x.
5. magnetic head arm loading force test machine setting method according to claim 2, which is characterized in that described to obtain one
First altitude datum obtains one second altitude datum and includes:
When the magnetic-head spring lamination is located at first height, the magnetic-head spring lamination is to described in corresponding thereto
First test disc force is to obtain a positive test loading force, when the magnetic-head spring lamination is located at second height,
The magnetic-head spring lamination obtains an anti-test loading force to the first test disc force corresponding thereto；And
When the difference of the positive test loading force and the anti-test loading force is less than first preset value, it is fixed on the magnetic
The height where the first test disc on head arm assembly loading force test machine is first altitude datum, alternatively,
When the difference of the positive test loading force and the anti-test loading force is less than second preset value, it is fixed on the head arm
The height where the second test disc on component loading force test machine is second altitude datum.
6. a kind of HGA tooling, which is characterized in that the transmission arm in the HGA tooling analog magnetic head arm component, with cooperation completion pair
The setting of magnetic head arm loading force test machine a comprising ontology, a connection piece and an actuator, wherein
Magnetic-head spring lamination is fixed on the ontology；The ontology includes a sequentially connected supporting part and a positioning region,
The supporting part is equipped with a loading end for carrying the magnetic-head spring lamination, the positioning region be equipped with for realizing
One first positioning reference plane and one second positioning reference plane of two kinds of different heights, are held with second positioning reference plane with described
The distance between section is one first height, with the distance between first positioning reference plane and the loading end for one second
Highly, the positioning datum of a connection first positioning reference plane and second positioning reference plane is additionally provided on the positioning region
Hole is so that the HGA tooling can be positioned on the magnetic head arm loading force test machine；
The connector is movably arranged on the ontology, which is provided with a compressed part, and the compressed part is held relative to described
Section is with the fixation magnetic-head spring lamination on the ontology；
The actuator passes through the ontology and connect with the connector, so that the compressed part of the connector can be close
Or far from the loading end.
7. HGA tooling according to claim 6, which is characterized in that the HGA tooling further includes a guide pin, described to lead
The connector and the supporting part are sequentially passed through from top to down to pin, with the fixation connector on the ontology.
8. HGA tooling according to claim 6, which is characterized in that the two sides up and down of the positioning region are recessed respectively inwards
There are on one bit-avoiding slot and once bit-avoiding slot, so that the HGA tooling can be placed on the magnetic head arm loading force test machine.
9. HGA tooling according to claim 6, which is characterized in that the connector includes a substrate and an accommodating cavity, with
The accommodating cavity of the substrate connection is located at the surface of the loading end, and the compressed part includes that a pressure head and one reset bullet
Spring, the pressure head pass through the reset spring and are fixed in the accommodating cavity.
10. HGA tooling according to claim 6, which is characterized in that the actuator includes that proficiency arbor and one reset bullet
Spring, the Handle axis sequentially pass through the reset spring, the supporting part and the connector from bottom to up and are connected to institute
It states on connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384955.1A CN105374368B (en) | 2014-08-06 | 2014-08-06 | Magnetic head arm loading force test machine setting method and HGA tooling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384955.1A CN105374368B (en) | 2014-08-06 | 2014-08-06 | Magnetic head arm loading force test machine setting method and HGA tooling |
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| Publication Number | Publication Date |
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| CN105374368A CN105374368A (en) | 2016-03-02 |
| CN105374368B true CN105374368B (en) | 2019-08-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315626Y (en) * | 1997-11-03 | 1999-04-21 | 深圳开发科技股份有限公司 | Tester for head stack loading force |
| US5936807A (en) * | 1997-01-21 | 1999-08-10 | Hitachi Electronics Engineering Co., Ltd. | Magnetic head loading mechanism and method for testing a magnetic disk surface therefor |
| CN2460984Y (en) * | 2000-08-02 | 2001-11-21 | 深圳开发科技股份有限公司 | Automatic machine for investigating loading force of multiple magnetic heads at the same time |
| CN201130531Y (en) * | 2007-12-21 | 2008-10-08 | 科瑞自动化技术(深圳)有限公司 | System for measuring elastic arm loading force |
| CN202816369U (en) * | 2012-09-20 | 2013-03-20 | 科瑞自动化技术(深圳)有限公司 | Integrated measurement system for suspension gram load and static posture |
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2014
- 2014-08-06 CN CN201410384955.1A patent/CN105374368B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5936807A (en) * | 1997-01-21 | 1999-08-10 | Hitachi Electronics Engineering Co., Ltd. | Magnetic head loading mechanism and method for testing a magnetic disk surface therefor |
| CN2315626Y (en) * | 1997-11-03 | 1999-04-21 | 深圳开发科技股份有限公司 | Tester for head stack loading force |
| CN2460984Y (en) * | 2000-08-02 | 2001-11-21 | 深圳开发科技股份有限公司 | Automatic machine for investigating loading force of multiple magnetic heads at the same time |
| CN201130531Y (en) * | 2007-12-21 | 2008-10-08 | 科瑞自动化技术(深圳)有限公司 | System for measuring elastic arm loading force |
| CN202816369U (en) * | 2012-09-20 | 2013-03-20 | 科瑞自动化技术(深圳)有限公司 | Integrated measurement system for suspension gram load and static posture |
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| Publication number | Publication date |
|---|---|
| CN105374368A (en) | 2016-03-02 |
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