CN105336345A - Magnetic head loading force test device - Google Patents
Magnetic head loading force test device Download PDFInfo
- Publication number
- CN105336345A CN105336345A CN201410385326.0A CN201410385326A CN105336345A CN 105336345 A CN105336345 A CN 105336345A CN 201410385326 A CN201410385326 A CN 201410385326A CN 105336345 A CN105336345 A CN 105336345A
- Authority
- CN
- China
- Prior art keywords
- magnetic head
- loading system
- disc
- assembly
- comb
- 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
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
The invention discloses a magnetic head loading force test device. The magnetic head loading force test device comprises a magnetic head positioning mechanism, a separation mechanism and a weighing mechanism, wherein the weighing mechanism comprises a plurality of disc weighing units; each disc weighing unit comprises a disc and an electronic scale used for measuring magnetic head loading force on the disc; and the discs of the disc weighing units are superposed in sequence to form a comb tooth shape. According to the magnetic head loading force test device, the disc weighing units are arranged, so that the magnetic head loading force test device can test multiple head directions of one magnetic head at a time, the device cost is reduced, and the test efficiency is improved.
Description
Technical field
The present invention relates to computing machine hard disc field, particularly relate to a kind of magnetic head loading system Force meansurement equipment.
Background technology
Hard disk is the primary outer storage medium of computing machine, its data utilizing magnetic head to come on reading writing harddisk.When hard disk is in running order, hard disc rapidly rotates, slider pad on magnetic head is in state of flight, and produce air anchorage force at air supporting surface, usually, magnetic head balances the size of this air anchorage force by its elastic arm pre-add elastic force on slider pad, makes air supporting surface keep the effect of predetermined altitude, for magnetic head read-write capability provides safeguard relative to disc.The elastic force of above-mentioned pre-add is referred to as the loading force of magnetic head, and the equipment testing this power size is referred to as magnetic head loading system Force meansurement equipment.At present, the magnetic head loading system Force meansurement equipment on market, as illustrated in figs. ia and ib, this magnetic head loading system Force meansurement equipment 100 comprises disc holder 101, disc 102, locating shaft 103 and separates needle assemblies 104.One end of magnetic head 105 is fixed on locating shaft 103, containing multiple head suspension assembly 106(HeadGimbalAssembly, HGA) the other end is then separated by separation needle assemblies 104, and wherein, HGA106 comprises slider pad 106a, elastic arm 106b and stop 106c(lif-tab).The principle of work of this magnetic head loading system Force meansurement equipment 100 is as follows: after magnetic head 105 is located on locating shaft 103, separate needle assemblies 104 HGA is separated, HGA106 enters into disc 102, then separates needle assemblies 104 and rotates one by one, test the loading force size of each HGA106.More specifically, as shown in Figure 1a, the magnetic head of magnetic head loading system Force meansurement equipment 100 is in segmented state, and the slider pad 106a of the HGA106 of magnetic head 105 does not all contact with disc 102.As shown in Figure 1 b, the magnetic head of magnetic head loading system Force meansurement equipment 100 is in test mode, is positioned at nethermost separation needle assemblies 104 half-twist, now, the slider pad 106a being positioned at nethermost HGA106 touches disc 102, and nethermost HGA106 is in test mode.After completing nethermost HGA106 test, be positioned at nethermost separation needle assemblies 104 spinning reduction, then, separate needle assemblies 104 half-twist for second that is located thereon, the slider pad 106a of HGA106 corresponding thereto contacts with disc 102, complete test, repeat above-mentioned action, complete the test of all HGA106 on magnetic head 105.
But said head loading force testing apparatus 100 can only test 1 HGA at every turn, efficiency is very low, machine cost and human cost high.
Summary of the invention
The object of the invention is to solve magnetic head loading system Force meansurement equipment of the prior art and can only test the high technical matters of 1 HGA, inefficiency, machine cost and human cost at every turn, and a kind of magnetic head loading system Force meansurement equipment that once can complete multiple HGA and test is provided.
The present invention proposes a kind of magnetic head loading system Force meansurement equipment, for measuring magnetic head loading system power, it comprises magnetic-head positioning construction, partition and Weighing mechanism, described Weighing mechanism comprises multiple disc weighing unit, each disc weighing unit includes a disc and for measuring the electronic scale of the magnetic head loading system power be mounted on described disc, and the disc of each disc weighing unit superposes formation one comb teeth-shaped successively.
Described magnetic head loading system Force meansurement equipment, described disc weighing unit also comprises a holder and column, and described disc is fixed on described holder by described column, and described holder is arranged on the sensor of described electronic scale.
Described magnetic head loading system Force meansurement equipment, each disc include one be arranged on coiled hair on described column and by the side of described coiled hair to the dish tooth in elongate shape of horizontal-extending, the dish tooth of each disc superposes the comb teeth-shaped described in formation successively.
Described magnetic head loading system Force meansurement equipment, described partition comprises two set isolation unit, and each set isolation unit includes multiple separation pin, and the separation pin arrangement in column in same group, and the separation pin between different groups is embarked on journey arrangement.
Described magnetic head loading system Force meansurement equipment, described two set isolation unit respectively with a cylinders, under the driving of cylinder, wherein a set isolation unit moves upward, and another set isolation unit moves downward.
Described magnetic head loading system Force meansurement equipment, described magnetic-head positioning construction comprises positioning component, spinning assembly and clamp assembly, magnetic head is positioned on the base assembly of magnetic head loading system Force meansurement equipment by described positioning component, described spinning assembly in the vertical direction locates described magnetic head, and described clamp assembly locates described magnetic head in the horizontal direction.
Described magnetic head loading system Force meansurement equipment, described positioning component comprises a cylinder table and is arranged on locating shaft on described cylinder table, described locating shaft match with the bearing pilot hole of described magnetic head with by described magnetic head on described cylinder table.
Described magnetic head loading system Force meansurement equipment, described spinning assembly comprises a drive unit and and drives by described drive unit the pressure head moved up and down, and described pressure head compresses from the top of described positioning component described magnetic head.
Described magnetic head loading system Force meansurement equipment, described clamp assembly comprise one be fixedly clamped seat, be arranged on described in be fixedly clamped the cylinder on seat, the base of the carrier head moved horizontally under described air cylinder driven and the chuck that is arranged on described base of the carrier head, the detent fit on described chuck and described base assembly is to locate described magnetic head in the horizontal direction.
Described magnetic head loading system Force meansurement equipment; described magnetic head loading system Force meansurement equipment also comprises and moves back comb assembly, a upper comb dent assembly and a holder comb assembly; describedly move back comb assembly and described upper comb dent assembly cooperatively interacts to be backed out from magnetic head by the comb for the protection of magnetic head that magnetic head is set with or load onto, described holder comb assembly is for lifting by the comb backed out.
Compared with prior art, the present invention has following beneficial effect:
Magnetic head loading system Force meansurement equipment of the present invention, by arranging multiple disc weighing unit, makes this magnetic head loading system Force meansurement equipment can the multiple HGA of disposable test, reduces equipment cost and improves testing efficiency.
Accompanying drawing explanation
Fig. 1 a is the structural representation that in prior art, magnetic head loading system Force meansurement equipment is in segmented state.
Fig. 1 b is the structural representation that in prior art, magnetic head loading system Force meansurement equipment is in test mode.
Fig. 2 is the assembling explosive view of magnetic head loading system Force meansurement equipment of the present invention.
Fig. 3 is the structural representation after magnetic head loading system Force meansurement equipment of the present invention assembling.
Fig. 4 is the structural representation of magnetic head loading system Force meansurement equipment Weighing mechanism of the present invention.
Fig. 5 is the structural representation of magnetic head loading system Force meansurement equipment partition of the present invention.
Fig. 6 is the partial enlarged drawing at A place in Fig. 2.
Fig. 7 is the structural representation of magnetic head loading system Force meansurement equipment clamp assembly of the present invention and upper comb dent assembly.
Fig. 8 is the structural representation that magnetic head loading system Force meansurement equipment of the present invention moves back comb assembly.
Fig. 9 is the structural representation of magnetic head loading system Force meansurement equipment holder comb assembly of the present invention.
Figure 10 is the workflow diagram of magnetic head loading system Force meansurement equipment of the present invention.
Embodiment
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Refer to Fig. 2 and Fig. 3, Fig. 2 is the assembling explosive view of magnetic head loading system Force meansurement equipment of the present invention, and Fig. 3 is the structural representation after magnetic head loading system Force meansurement equipment of the present invention assembling.Magnetic head loading system Force meansurement equipment of the present invention comprises a base assembly 1, the Weighing mechanism 2 be arranged on this base assembly 1, partition 3, magnetic-head positioning construction 4, move back comb assembly 5, upper comb dent assembly 6 and the holder comb assembly 7 for lifting comb.
Base assembly 1 comprises one and has the end box 11 of opening and the base plate 12 of this end box 11 of covering, and above-mentioned each assembly and mechanism are arranged in this end box 11, and this base plate 12 stretches out in those assemblies and mechanism, above base plate 12, carry out work.
Refer to Fig. 4, it is the structural representation of magnetic head loading system Force meansurement equipment Weighing mechanism of the present invention.Weighing mechanism 2 comprises a mounting box 21 and multiple disc weighing unit 22.This mounting box 21 has an opening, and the lower end of disc weighing unit 22 is fixed in this mounting box 21, and this mounting box 21 is stretched out in upper end.Each disc weighing unit 22 includes holder 221, column 222, disc 223 and and is arranged in mounting box 21 for measuring the electronic scale (not shown) of the loading force of the magnetic head be mounted on disc 223.Holder 221 is fixed in mounting box 21, and column 222 is fixed on holder 221, and disc 223 is fixed on holder 221 by column 222.In the present embodiment, this Weighing mechanism 2 comprises 6 disc weighing units 22, and the holder 221 of those disc weighing units 22 is arranged in two row two row.The disc 223 of each disc weighing unit 22 is spaced from bottom to up successively, and each disc 223 includes a coiled hair 2232 with two holes and the dish tooth 2231 in elongate shape horizontally outward extended by the side of this coiled hair 2232.Each coiled hair 2232 is fixed on column 222 by securing member, and each dish tooth 2231 superposes formation one comb teeth-shaped successively, and distance between comb and the distance between each HGA of magnetic head suitable.The below of the corresponding holder 221 of each disc 223 arranges one for claiming to be mounted in the electronic scale of weight of object on disc 223, and this electronic scale comprises pressure variant sensor, control module and display unit, and this pressure variant sensor is positioned at the below of this holder 221.At this, the sensor of electronic scale is not limited to pressure variant sensor, and they also can other sensors such as resistance-strain type, photo-electric, piezomagnetic, piezoelectric type, fluid pressure type, condenser type, oscillatory type.
Refer to Fig. 5, it is the structural representation of magnetic head loading system Force meansurement equipment partition of the present invention.Partition 3 comprises a holder 31, is arranged on the separation needle assemblies 32 on holder 31 and drives the cylinder 33 separated needle assemblies 32 and move.Separate needle assemblies 32 and comprise two set isolation unit, be respectively the first set isolation unit 321 and second component every unit 322, each set isolation unit includes multiple separation pin, and the separation pin arrangement in column in same group, and the separation pin between different groups is embarked on journey arrangement.First set isolation unit 321 and second component are driven by each self-corresponding cylinder 33 respectively every unit 322, and the direction of motion of two set isolation unit is contrary, and such as, the first set isolation unit 321 moves upward, then second component moves downward every unit 322.
Please refer to Fig. 1, Fig. 6 and Fig. 7, magnetic-head positioning construction comprises spinning assembly 41, positioning component 42 and clamp assembly 43.Spinning assembly 41 comprises a case 411, installs a drive unit in case 411, and install a pressure head 412 be connected with drive unit in the below of case 411, under the driving of drive unit, pressure head 412 in the vertical direction moves up and down.
As shown in Figure 6, positioning component 42 comprises a locating shaft 422 being fixed on cylinder table stepped on base plate 12 421 and being arranged on cylinder table 421, locating shaft 422 match with the bearing pilot hole of magnetic head with by magnetic head on cylinder table 421.In addition, the base plate 12 near positioning component 42 is provided with the register pin 44 preventing magnetic head from rotating in the horizontal direction and the spacer pin 45 preventing artificial incorrect operation, and this register pin 44 also realizes magnetic head location in the horizontal direction for coordinating with clamp assembly 43.
As shown in Figure 7, clamp assembly 43 comprise one be fixedly clamped seat 431, be arranged on the cylinder 434 be fixedly clamped on seat 431, the base of the carrier head 432 that moves horizontally and the chuck 433 be arranged on base of the carrier head 432 under cylinder 434 drives.Chuck 433 is in a T font structure, and it has an inclined-plane, and the register pin 44 on this inclined-plane and base plate 12 abuts against to clamp the magnetic head be positioned on locating shaft 422.
What upper comb dent assembly 6 was arranged on clamp assembly 43 by a holder 62 is fixedly clamped on seat 431, the left end of this holder 62 installs a cylinder 61, right-hand member installs a upper comb dent installing plate 63, this upper comb dent installing plate 63 is fixed a L-type web joint 64, a T font holder 65 is fixed on the top of this web joint 64, in T font holder 65, there is a cavity, one spring 66 is set in this cavity, this spring 66 abuts the comb of socket on HGA for promoting vertical plate 67, and the leveling board 68 be positioned at above vertical plate 67 prevents comb from bouncing for pushing down comb.
Refer to Fig. 8, it is the structural representation that magnetic head loading system Force meansurement equipment of the present invention moves back comb assembly.Move back comb assembly 5 and comprise a holder 51 and the bearing pin 52 for moving back comb.This moves back comb assembly 5 and upper comb dent assembly 6 with the use of what complete magnetic head loading system Force meansurement equipment and moves back comb action and the action of dress comb.
Refer to Fig. 9, it is the structural representation of magnetic head loading system Force meansurement equipment holder comb assembly of the present invention.Holder comb assembly 7 comprise a holder 74, along the slide block 75 of holder 74 movement, the mount pad 72 be arranged on slide block 75, be arranged on the L-type support 75 on mount pad 72 and be arranged on the supporting plate 71 on L-type support 75 top.Gas-tpe fitting 73 connects with a cylinder, and this air cylinder driven slide block 75 slides up and down along holder 74.
Refer to Figure 10, it is the workflow diagram of magnetic head loading system Force meansurement equipment of the present invention.The course of work of magnetic head loading system Force meansurement equipment of the present invention is described below in conjunction with Fig. 2 to Figure 10.
Before the course of work that this magnetic head loading system Force meansurement equipment is described, the structure of magnetic head under first general description.General, magnetic head (headstackassembly, HSA) comprises bearing, bogie and is arranged on the head suspension assembly (HeadGimbalAssembly, HGA) of this bogie end, wherein, HGA is provided with slider pad, elastic arm and stop (lif-tab).Magnetic head comprises the head of multiple HGA, HGA to facing upward or downward (slider pad is positioned at for head is to upward above elastic arm, and slider pad is positioned at below elastic arm for head is to down), and head is alternately arranged to HGA upward and head successively to HGA down.In other words, magnetic head can have multiple head to.
First, the magnetic head that need test is prepared.Because of in the present embodiment, magnetic head comprises 12 HGA(, and wherein 6 HGA heads are to upward, and the HGA head of another 6 is to down), therefore, at this according to the quantity of magnetic head to (or HGA), the disc quantity of magnetic head loading system Force meansurement equipment is set to 6.
Second step, positioning head.The bearing pilot hole of magnetic head is positioned on base plate 12 through the locating shaft 422 of positioning component 42, register pin 44 stops that magnetic head makes it that excessive rotation can not occur, after completing the roughly location of magnetic head, the pressure head 412 of spinning assembly 41 is at the moved downward of drive unit, pressure head 412 pushes down magnetic head from top, clamp assembly 43 makes chuck 433 approach magnetic head gradually in the horizontal direction under cylinder 434 acts on, until the inclined-plane of chuck 433 abuts the register pin 44 on base plate 12, realize positioning head horizontal direction.Can prevent that magnetic head from doing up and down by above-mentioned detent mechanism, left and right, rotary motion, and then realize the precise positioning of magnetic head.
3rd step, behind magnetic head location, partition 3 enters the HGA of magnetic head.
4th step, holder comb assembly 7 puts in place.Holder comb assembly 7, under the effect of cylinder, moves into place, and holds the comb be socketed on HGA.
5th step, moves back comb.Upper comb dent assembly 6, under the effect of cylinder 61, moves to predetermined primary importance; First set isolation unit 321 of partition 3 and second component every unit 322, move up respectively and move down, being opened by HGA under the effect of its corresponding cylinder; Move back comb assembly 5 to move into place, and make bearing pin 52 promote comb to move, until when comb abuts the vertical plate 67 of upper comb dent assembly 6, comb stops mobile, now, the mobile segment distance of comb, comb is backed out from magnetic head, in addition, the leveling board 68 being positioned at the upper comb dent assembly 6 above comb is upspring for preventing comb.
6th step, magnetic head loading system Force meansurement.Complete after moving back comb action, now, HGA opens, the first set isolation unit 321 of partition 3 on move a segment distance, second component has moved down a segment distance every unit 322.Under this kind of state, carry out the test of loading force, first, first set isolation unit 321 of partition 3 moves up a segment distance again, head is made to be mounted on disc to the lif-tab of HGA upward, disposablely complete all heads and test to the loading force of HGA upward, after testing, first set isolation unit 321 moves down, all heads reset to HGA upward, then, the second component of partition 3 moves down a segment distance again every unit 322, head is made to be mounted on disc to the lif-tab of HGA down, disposablely complete all heads and test to the loading force of HGA down, after testing, second component moves up every unit 321, all heads reset to HGA down.
7th step, dress comb.Move back comb assembly 5 and be retracted into initial position, upper comb dent assembly 6, under the effect of cylinder 61, moves to the second place, and promotes comb and make it reinstall on HGA.
8th step, holder comb assembly 7 resets, and is namely retracted into the initial position before equipment work.
9th step, HGA resets.Partition 3 exits HGA, and HGA returns to pretest condition, and meanwhile, upper comb dent assembly 6 is retracted into the initial position before equipment work.
10th step, detent mechanism 2 resets.Clamp assembly 43 level is retracted into the initial position before equipment work, and spinning assembly 41 rises to initial position.
11st step, takes off magnetic head from the locating shaft 422 of positioning component 42.
According to above-mentioned steps, complete the loading force test of all HGA of magnetic head.
Above-mentioned Weighing mechanism has 6 discs, but is not limited to this, and the disc quantity of this Weighing mechanism suitably can adjust to the quantity of (or HGA) according to actual magnetic head.
Above-mentioned partition has two set isolation unit, and every set isolation unit has 6 separation pins respectively, the quantity of every set isolation unit should be equal with the quantity of Weighing mechanism disc, in addition, the separation pin quantity of this partition is transformable, and it can carry out suitable adjustment according to the quantity of disc.
Magnetic head loading system Force meansurement equipment of the present invention, by arranging multiple disc weighing unit, makes this magnetic head loading system Force meansurement equipment can the multiple HGA of disposable test (or multiple magnetic head to), reduces equipment cost, improves testing efficiency.In addition, this magnetic head loading system Force meansurement equipment is disposable completes all heads after HGA test upward, and disposablely can complete all heads to HGA test down, can complete at twice all heads of magnetic head to the test of HGA.
These are only better possible embodiments of the present invention, not limit the scope of the invention, all utilizations instructions of the present invention and the change of the equivalent structure done by accompanying drawing content, be all included in protection scope of the present invention.
Claims (10)
1. a magnetic head loading system Force meansurement equipment, for measuring magnetic head loading system power, it is characterized in that, comprise magnetic-head positioning construction, partition and Weighing mechanism, described Weighing mechanism comprises multiple disc weighing unit, each disc weighing unit includes a disc and for measuring the electronic scale of the magnetic head loading system power be mounted on described disc, and the disc of each disc weighing unit superposes formation one comb teeth-shaped successively.
2. magnetic head loading system Force meansurement equipment according to claim 1, it is characterized in that, described disc weighing unit also comprises a holder and column, and described disc is fixed on described holder by described column, and described holder is arranged on the sensor of described electronic scale.
3. magnetic head loading system Force meansurement equipment according to claim 2, it is characterized in that, each disc include one be arranged on coiled hair on described column and by the side of described coiled hair to the dish tooth in elongate shape of horizontal-extending, the dish tooth of each disc superposes the comb teeth-shaped described in formation successively.
4. magnetic head loading system Force meansurement equipment according to claim 1, it is characterized in that, described partition comprises two set isolation unit, and each set isolation unit includes multiple separation pin, and the separation pin arrangement in column in same group, the separation pin between different groups is embarked on journey arrangement.
5. magnetic head loading system Force meansurement equipment according to claim 4, is characterized in that, described two set isolation unit respectively with a cylinders, under the driving of cylinder, wherein a set isolation unit moves upward, and another set isolation unit moves downward.
6. magnetic head loading system Force meansurement equipment according to claim 1, it is characterized in that, described magnetic-head positioning construction comprises positioning component, spinning assembly and clamp assembly, magnetic head is positioned on the base assembly of magnetic head loading system Force meansurement equipment by described positioning component, described spinning assembly in the vertical direction locates described magnetic head, and described clamp assembly locates described magnetic head in the horizontal direction.
7. magnetic head loading system Force meansurement equipment according to claim 6, it is characterized in that, described positioning component comprises a cylinder table and is arranged on locating shaft on described cylinder table, described locating shaft match with the bearing pilot hole of described magnetic head with by described magnetic head on described cylinder table.
8. magnetic head loading system Force meansurement equipment according to claim 7, it is characterized in that, described spinning assembly comprises a drive unit and and drives by described drive unit the pressure head moved up and down, and described pressure head compresses from the top of described positioning component described magnetic head.
9. magnetic head loading system Force meansurement equipment according to claim 7, it is characterized in that, described clamp assembly comprise one be fixedly clamped seat, be arranged on described in be fixedly clamped the cylinder on seat, the base of the carrier head moved horizontally under described air cylinder driven and the chuck that is arranged on described base of the carrier head, the detent fit on described chuck and described base assembly is to locate described magnetic head in the horizontal direction.
10. magnetic head loading system Force meansurement equipment according to claim 1; it is characterized in that; described magnetic head loading system Force meansurement equipment also comprises and moves back comb assembly, a upper comb dent assembly and a holder comb assembly; described comb assembly and the described upper comb dent assembly of moving back cooperatively interacts by being sleeved on magnetic head to back out from magnetic head for the protection of the comb of magnetic head or load onto, and described holder comb assembly is for lifting by the comb backed out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385326.0A CN105336345B (en) | 2014-08-06 | 2014-08-06 | Magnetic head loading system power test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385326.0A CN105336345B (en) | 2014-08-06 | 2014-08-06 | Magnetic head loading system power test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105336345A true CN105336345A (en) | 2016-02-17 |
| CN105336345B CN105336345B (en) | 2019-06-14 |
Family
ID=55286824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385326.0A Active CN105336345B (en) | 2014-08-06 | 2014-08-06 | Magnetic head loading system power test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105336345B (en) |
Citations (4)
| 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 |
| 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 |
| CN203982789U (en) * | 2014-08-06 | 2014-12-03 | 深圳长城开发科技股份有限公司 | Magnetic head loading system power testing apparatus |
-
2014
- 2014-08-06 CN CN201410385326.0A patent/CN105336345B/en active Active
Patent Citations (4)
| 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 |
| 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 |
| CN203982789U (en) * | 2014-08-06 | 2014-12-03 | 深圳长城开发科技股份有限公司 | Magnetic head loading system power testing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105336345B (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100480953C (en) | Short-tail head gimbal assembly testing fixture | |
| US4931338A (en) | Test disk having fluorocarbon resin asperities for magnetic disk drive component testing | |
| CN203982789U (en) | Magnetic head loading system power testing apparatus | |
| CN108846972A (en) | A kind of POS angle barcode scanning test device and method | |
| CN1689074A (en) | Spin stand and head/disc test device | |
| CN206209762U (en) | For the test device of test fingerprint sensor | |
| CN115267401A (en) | Quick test system of touch screen and test system of double-finger quick touch screen | |
| DE102017120622A1 (en) | Double barrier vacuum seal for sealed data storage system | |
| CN105336345A (en) | Magnetic head loading force test device | |
| CN205522959U (en) | Alignment platform | |
| CN1317617C (en) | Method for loading single head in a hard disk drive | |
| CN104155807A (en) | Cloth gluing device and method | |
| CN206192638U (en) | Photovoltaic module is with dynamic load testing device | |
| CN202908228U (en) | Mobile library rotation buffering mechanism | |
| CN205642424U (en) | Electronic components transparent medium carousel bears test and automatic wiping arrangement | |
| CN203323667U (en) | Positioning device for eccentric spring | |
| CN113427257A (en) | Automatic assembly integrated equipment for handwriting pen magnet and handwriting pen magnet assembly method | |
| CN208350939U (en) | Pen pressure simulating test device | |
| CN208543288U (en) | Framework repair flash device in a kind of display | |
| CN1264893A (en) | Servo magnetic route write device for hard disc driver | |
| CN201681603U (en) | Optical disc read-write mechanism | |
| CN202887344U (en) | Self-service mobile library for accurately positioning | |
| CN202393608U (en) | Testing mechanism | |
| CN204680038U (en) | The tower probe writing chip apparatus of a kind of smart card is installed and lifting mechanism | |
| CN204360396U (en) | Smart card reader head device for opening |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |