CN203982789U - Magnetic head loading system power testing apparatus - Google Patents
Magnetic head loading system power testing apparatus Download PDFInfo
- Publication number
- CN203982789U CN203982789U CN201420442097.7U CN201420442097U CN203982789U CN 203982789 U CN203982789 U CN 203982789U CN 201420442097 U CN201420442097 U CN 201420442097U CN 203982789 U CN203982789 U CN 203982789U
- Authority
- CN
- China
- Prior art keywords
- magnetic head
- system power
- loading system
- testing apparatus
- disc
- 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.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 93
- 238000005303 weighing Methods 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000002955 isolation Methods 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 15
- 238000009987 spinning Methods 0.000 claims description 11
- 230000000712 assembly Effects 0.000 description 11
- 238000000429 assembly Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
The utility model discloses a kind of magnetic head loading system power testing apparatus, it comprises magnetic-head positioning construction, partition and Weighing mechanism, described Weighing mechanism comprises multiple disc weighing units, each disc weighing unit includes a disc and for measuring the electronic scale of the magnetic head loading system power being mounted on described disc, and the disc of each disc weighing unit superposes successively and forms a comb teeth-shaped.Magnetic head loading system power testing apparatus of the present utility model is by arranging multiple disc weighing units, make multiple heads that this magnetic head loading system power testing apparatus can a magnetic head of disposable test to, reduced equipment cost, improved testing efficiency.
Description
Technical field
The utility model relates to computing machine hard disc field, relates in particular to a kind of magnetic head loading system power testing apparatus.
Background technology
Hard disk is the main exterior storage medium of computing machine, and it utilizes magnetic head to carry out the data on reading writing harddisk.In the time that 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 adds in advance elastic force by its elastic arm on slider pad carrys out the size of this air anchorage force of balance, and the effect that makes air supporting surface keep predetermined altitude with respect to disc, for magnetic head read-write capability provides safeguard.The above-mentioned elastic force adding is in advance referred to as the loading force of magnetic head, and the equipment of testing this power size is referred to as magnetic head loading system power testing apparatus.At present, the magnetic head loading system power testing apparatus on market, as shown in Fig. 1 a and Fig. 1 b, this magnetic head loading system power testing apparatus 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, contain multiple head suspension assembly 106(Head Gimbal Assembly, HGA) the other end is separated needle assemblies 104 to be separated, and wherein, HGA 106 comprises slider pad 106a, elastic arm 106b and stop 106c(lif-tab).The principle of work of this magnetic head loading system power testing apparatus 100 is as follows: after magnetic head 105 is located on locating shaft 103, separating needle assemblies 104 separates HGA, HGA 106 enters into disc 102, then separates needle assemblies 104 and rotates one by one, tests the loading force size of each HGA 106.More specifically, as shown in Figure 1a, the magnetic head of magnetic head loading system power testing apparatus 100 is in separation state, and the slider pad 106a of the HGA 106 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 power testing apparatus 100, in test mode, is positioned at nethermost separation needle assemblies 104 half-twist, now, the slider pad 106a that is positioned at nethermost HGA 106 touches disc 102, and nethermost HGA 106 is in test mode.Complete after nethermost HGA 106 tests, be positioned at nethermost separation needle assemblies 104 spinning reductions, then, separate needle assemblies 104 half-twists for second that is located thereon, the slider pad 106a of HGA 106 corresponding thereto contacts with disc 102, complete test, repeat above-mentioned action, complete the test of all HGA 106 on magnetic head 105.
But said head loading force testing apparatus 100 can only be tested 1 HGA at every turn, efficiency is very low, and machine cost and human cost are high.
Utility model content
The purpose of this utility model is to solve magnetic head loading system power testing apparatus of the prior art can only test 1 technical matters that HGA, inefficiency, machine cost and human cost are high at every turn, and a kind of magnetic head loading system power testing apparatus that once can complete multiple HGA tests is provided.
The utility model proposes a kind of magnetic head loading system power testing apparatus, be used for measuring magnetic head loading system power, it comprises magnetic-head positioning construction, partition and Weighing mechanism, described Weighing mechanism comprises multiple disc weighing units, each disc weighing unit includes a disc and for measuring the electronic scale of the magnetic head loading system power being mounted on described disc, and the disc of each disc weighing unit superposes successively and forms a comb teeth-shaped.
Described magnetic head loading system power testing apparatus, 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 power testing apparatus, each disc includes one and is arranged on the coiled hair on described column and extends by a side direction horizontal of described coiled hair the dish tooth that is elongate forming, and the dish tooth of each disc superposes successively and forms described comb teeth-shaped.
Described magnetic head loading system power testing apparatus, described partition comprises two set isolation unit, and each set isolation unit includes multiple separation pins, and in column the arranging of separation pin in same group, and the separation pin between is not on the same group embarked on journey and is arranged.
Described magnetic head loading system power testing apparatus, described two set isolation unit are connected with a cylinder respectively, and under the driving of cylinder, wherein a set isolation unit moves upward, and another set isolation unit moves downward.
Described magnetic head loading system power testing apparatus, described magnetic-head positioning construction comprises positioning component, spinning assembly and clamp assembly, described positioning component by head position on the base assembly of magnetic head loading system power testing apparatus, described spinning assembly in the vertical direction is located described magnetic head, and described clamp assembly is located described magnetic head in the horizontal direction.
Described magnetic head loading system power testing apparatus, described positioning component comprises a cylinder table and is arranged on the 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 power testing apparatus, described spinning assembly comprises that a drive unit and drives by described drive unit the pressure head moving up and down, described pressure head compresses described magnetic head from the top of described positioning component.
Described magnetic head loading system power testing apparatus, described clamp assembly comprises be fixedly clamped seat, be fixedly clamped described in being arranged on cylinder, the base of the carrier head moving horizontally under described air cylinder driven on seat and be arranged on the chuck on described base of the carrier head, and described chuck coordinates to locate in the horizontal direction described magnetic head with the register pin on described base assembly.
Described magnetic head loading system power testing apparatus; described magnetic head loading system power testing apparatus also comprises moves back broach assembly, a upper comb dent assembly and a holder broach assembly; describedly move back broach assembly and described upper comb dent assembly cooperatively interacts that the broach for the protection of magnetic head being set with on magnetic head is backed out or loaded onto from magnetic head, described holder broach assembly is for lifting the broach of being backed out.
Compared with prior art, the utlity model has following beneficial effect:
Magnetic head loading system power testing apparatus of the present utility model is by arranging multiple disc weighing units, makes this magnetic head loading system power testing apparatus can the multiple HGA of disposable test, reduced equipment cost and improved testing efficiency.
Brief description of the drawings
Fig. 1 a is the structural representation of magnetic head loading system power testing apparatus in separation state in prior art.
Fig. 1 b is the structural representation of magnetic head loading system power testing apparatus in test mode in prior art.
Fig. 2 is the assembling explosive view of the utility model magnetic head loading system power testing apparatus.
Fig. 3 is the structural representation after the assembling of the utility model magnetic head loading system power testing apparatus.
Fig. 4 is the structural representation of the utility model magnetic head loading system power testing apparatus Weighing mechanism.
Fig. 5 is the structural representation of the utility model magnetic head loading system power testing apparatus partition.
Fig. 6 is the partial enlarged drawing at A place in Fig. 2.
Fig. 7 is the structural representation of the utility model magnetic head loading system power testing apparatus clamp assembly and upper comb dent assembly.
Fig. 8 is the structural representation that the utility model magnetic head loading system power testing apparatus is moved back broach assembly.
Fig. 9 is the structural representation of the utility model magnetic head loading system power testing apparatus holder broach assembly.
Figure 10 is the workflow diagram of the utility model magnetic head loading system power testing apparatus.
Embodiment
In order to further illustrate principle of the present utility model and structure, now by reference to the accompanying drawings preferred embodiment of the present utility model is elaborated.
Refer to Fig. 2 and Fig. 3, Fig. 2 is the assembling explosive view of the utility model magnetic head loading system power testing apparatus, and Fig. 3 is the structural representation after the assembling of the utility model magnetic head loading system power testing apparatus.The utility model magnetic head loading system power testing apparatus comprises a base assembly 1, be arranged on Weighing mechanism 2, partition 3, magnetic-head positioning construction 4 on this base assembly 1, move back broach assembly 5, upper comb dent assembly 6 and for lifting the holder broach assembly 7 of broach.
Base assembly 1 comprises that an end box 11 and with opening covers the base plate 12 of this end box 11, and above-mentioned each assembly and mechanism are arranged in this end box 11, and those assemblies and mechanism stretch out this base plate 12, carries out work above base plate 12.
Refer to Fig. 4, it is the structural representation of the utility model magnetic head loading system power testing apparatus Weighing mechanism.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.It is interior for measuring the electronic scale (not shown) of the loading force that is mounted in the magnetic head on disc 223 that each disc weighing unit 22 includes a holder 221, a column 222, a disc 223 and is arranged on mounting box 21.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 dish tooth 2231 that is elongate that has the coiled hair 2232 in two holes and horizontally outward extended by a side of this coiled hair 2232.Each coiled hair 2232 is fixed on column 222 by securing member, respectively coil tooth 2231 and superpose successively and form a comb teeth-shaped, and distance between distance and the each HGA of magnetic head between broach is 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 presses 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 press variant sensor, other sensors such as it also can 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 the utility model magnetic head loading system power testing apparatus partition.Partition 3 comprises a holder 31, is arranged on the separation needle assemblies 32 on holder 31 and drives and separate the cylinder 33 that needle assemblies 32 moves.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 pins, and in column the arranging of separation pin in same group, and the separation pin between is not on the same group embarked on journey and arranged.The 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 for example, the first set isolation unit 321 moves upward, and 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, and interior installation one drive unit of case 411 is installed a pressure head being connected with drive unit 412 below case 411, and under the driving of drive unit, pressure head 412 in the vertical directions move up and down.
As shown in Figure 6, positioning component 42 comprises that one is fixed on cylinder table stepped on base plate 12 421 and is arranged on the locating shaft 422 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, preventing the register pin 44 that magnetic head rotates in the horizontal direction and the spacer pin 45 that prevents artificial incorrect operation near being provided with on the base plate 12 of positioning component 42, this register pin 44 is also for coordinating to realize magnetic head location in the horizontal direction with clamp assembly 43.
As shown in Figure 7, clamp assembly 43 comprise one be fixedly clamped seat 431, be arranged on and be fixedly clamped cylinder 434, the base of the carrier head 432 that cylinder 434 drive under move horizontally of seat on 431 and be arranged on the chuck 433 on base of the carrier head 432.Chuck 433 is a T font structure, and it has an inclined-plane, and the register pin 44 on this inclined-plane and base plate 12 connects to clamp the magnetic head being positioned on locating shaft 422.
Upper comb dent assembly 6 is arranged on being fixedly clamped on seat 431 of clamp assembly 43 by a holder 62, the left end of this holder 62 is installed a cylinder 61, right-hand member is installed a upper comb dent installing plate 63, on this upper comb dent installing plate 63, fix a L-type web joint 64, fix a T font holder 65 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 is for promoting the broach of the upper socket of vertical plate 67 butt HGA, and the leveling board 68 that is positioned at vertical plate 67 tops prevents that for pushing down broach broach from bouncing.
Refer to Fig. 8, it is the structural representation that the utility model magnetic head loading system power testing apparatus is moved back broach assembly.Move back that broach assembly 5 comprises a holder 51 and for moving back the bearing pin 52 of broach.This moves back broach assembly 5 and upper comb dent assembly 6 has been used in conjunction with moving back broach action and filling broach action of magnetic head loading system power testing apparatus.
Refer to Fig. 9, it is the structural representation of the utility model magnetic head loading system power testing apparatus holder broach assembly.Holder broach assembly 7 comprises a holder 74, a slide block moving along holder 74 75, be arranged on mount pad 72 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 tops.Gas-tpe fitting 73 and a cylinder join, 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 the utility model magnetic head loading system power testing apparatus.The course of work of the utility model magnetic head loading system power testing apparatus is described below in conjunction with Fig. 2 to Figure 10.
Before the course of work of this magnetic head loading system power testing apparatus of explanation, the structure of magnetic head under first general description.General, magnetic head (head stack assembly, HSA) comprises bearing, bogie and is arranged on the head suspension assembly (Head Gimbal Assembly, HGA) of this bogie end, wherein, HGA is provided with slider pad, elastic arm and stop (lif-tab).Magnetic head comprises multiple HGA, and the head of HGA is (slider pad is positioned at elastic arm top for head is to upward, and slider pad is positioned at elastic arm below for head is to down) to facing upward or downward, and head is to HGA upward and head to HGA alternative arrangement successively down.In other words, magnetic head can have multiple head to.
First, prepare to need the magnetic head of test.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, this according to magnetic head the quantity to (or HGA), the disc quantity of magnetic head loading system power testing apparatus 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, complete behind the roughly location of magnetic head, the pressure head 412 of spinning assembly 41 moves downward under the effect of drive unit, pressure head 412 is pushed down magnetic head from top, clamp assembly 43 makes chuck 433 approach gradually in the horizontal direction magnetic head under cylinder 434 effects, until the register pin 44 on the inclined-plane butt base plate 12 of chuck 433 is realized positioning head horizontal direction.Can prevent that magnetic head from doing up and down, left and right, rotatablely move by above-mentioned detent mechanism, and then realize the precise positioning of magnetic head.
The 3rd step, after head position, partition 3 enters the HGA of magnetic head.
The 4th step, holder broach assembly 7 puts in place.Holder broach assembly 7, under the effect of cylinder, moves into place, and holds the broach being socketed on HGA.
The 5th step, moves back broach.Upper comb dent assembly 6, under the effect of cylinder 61, moves to predetermined primary importance; The first set isolation unit 321 and the second component of partition 3, move up respectively and move down under the effect at its corresponding cylinder every unit 322, and HGA is opened; Moving back broach assembly 5 moves into place, and make bearing pin 52 promote broach to move, until when the vertical plate 67 of broach butt upper comb dent assembly 6, broach stops mobile, now, the mobile segment distance of broach, broach is backed out from magnetic head, in addition the leveling board 68 that, is positioned at the upper comb dent assembly 6 of broach top is upspring for preventing broach.
The 6th step, the test of magnetic head loading system power.Complete and move back after broach action, now, HGA is opened, and the first set isolation unit 321 of partition 3 moves a segment distance on, and second component has moved down a segment distance every unit 322.Under this kind of state, carry out the test of loading force, first, the first set isolation unit 321 of partition 3 segment distance that moves up again, head is mounted on disc to the lif-tab of HGA upward, disposablely complete the loading forces test to HGA upward of all heads, after testing, the 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 mounted on disc to the lif-tab of HGA down, disposablely complete the loading forces test to HGA down of all heads, after testing, second component moves up every unit 321, all heads reset to HGA down.
The 7th step, dress broach.Move back broach 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 broach it is reinstalled to HGA.
The 8th step, holder broach assembly 7 resets, and is retracted into the initial position before equipment work.
The 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.
The 10th step, detent mechanism 2 resets.Clamp assembly 43 levels are retracted into the initial position before equipment work, and spinning assembly 41 rises to initial position.
The 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 can suitably be adjusted 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 respectively 6 and separates pins, and the quantity of every set isolation unit should equate 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 power testing apparatus of the present utility model is by arranging multiple disc weighing units, make this magnetic head loading system power testing apparatus can the multiple HGA of disposable test (or multiple magnetic head to), reduced equipment cost, improved testing efficiency.In addition, this magnetic head loading system power testing apparatus is disposable completes all heads after HGA test upward, and can disposablely 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 utility model, and unrestricted protection domain of the present utility model, the equivalent structure that all utilization the utility model instructionss and accompanying drawing content have been done changes, and is all included in protection domain of the present utility model.
Claims (10)
1. a magnetic head loading system power testing apparatus, be used 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 units, each disc weighing unit includes a disc and for measuring the electronic scale of the magnetic head loading system power being mounted on described disc, and the disc of each disc weighing unit superposes successively and forms a comb teeth-shaped.
2. magnetic head loading system power testing apparatus 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 power testing apparatus according to claim 2, it is characterized in that, each disc includes one and is arranged on the coiled hair on described column and extends by a side direction horizontal of described coiled hair the dish tooth that is elongate forming, and the dish tooth of each disc superposes successively and forms described comb teeth-shaped.
4. magnetic head loading system power testing apparatus according to claim 1, it is characterized in that, described partition comprises two set isolation unit, and each set isolation unit includes multiple separation pins, and in column the arranging of separation pin in same group, the separation pin between is not on the same group embarked on journey and is arranged.
5. magnetic head loading system power testing apparatus according to claim 4, is characterized in that, described two set isolation unit are connected with a cylinder respectively, and under the driving of cylinder, wherein a set isolation unit moves upward, and another set isolation unit moves downward.
6. magnetic head loading system power testing apparatus according to claim 1, it is characterized in that, described magnetic-head positioning construction comprises positioning component, spinning assembly and clamp assembly, described positioning component by head position on the base assembly of magnetic head loading system power testing apparatus, described spinning assembly in the vertical direction is located described magnetic head, and described clamp assembly is located described magnetic head in the horizontal direction.
7. magnetic head loading system power testing apparatus according to claim 6, it is characterized in that, described positioning component comprises a cylinder table and is arranged on the 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 power testing apparatus according to claim 7, it is characterized in that, described spinning assembly comprises that a drive unit and drives by described drive unit the pressure head moving up and down, and described pressure head compresses described magnetic head from the top of described positioning component.
9. magnetic head loading system power testing apparatus according to claim 7, it is characterized in that, described clamp assembly comprises be fixedly clamped seat, be fixedly clamped described in being arranged on cylinder, the base of the carrier head moving horizontally under described air cylinder driven on seat and be arranged on the chuck on described base of the carrier head, and described chuck coordinates to locate in the horizontal direction described magnetic head with the register pin on described base assembly.
10. magnetic head loading system power testing apparatus according to claim 1; it is characterized in that; described magnetic head loading system power testing apparatus also comprises moves back broach assembly, a upper comb dent assembly and a holder broach assembly; describedly move back broach assembly and described upper comb dent assembly cooperatively interacts to back out or load onto from magnetic head being sleeved on the broach for the protection of magnetic head on magnetic head, described holder broach assembly is for lifting the broach of being backed out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442097.7U CN203982789U (en) | 2014-08-06 | 2014-08-06 | Magnetic head loading system power testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442097.7U CN203982789U (en) | 2014-08-06 | 2014-08-06 | Magnetic head loading system power testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203982789U true CN203982789U (en) | 2014-12-03 |
Family
ID=51980219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442097.7U Expired - Lifetime CN203982789U (en) | 2014-08-06 | 2014-08-06 | Magnetic head loading system power testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203982789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336345A (en) * | 2014-08-06 | 2016-02-17 | 深圳长城开发科技股份有限公司 | Magnetic head loading force test device |
| CN106141986A (en) * | 2015-04-22 | 2016-11-23 | 深圳长城开发科技股份有限公司 | HSA reversely installs COMB shifter |
-
2014
- 2014-08-06 CN CN201420442097.7U patent/CN203982789U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336345A (en) * | 2014-08-06 | 2016-02-17 | 深圳长城开发科技股份有限公司 | Magnetic head loading force test device |
| CN105336345B (en) * | 2014-08-06 | 2019-06-14 | 深圳长城开发科技股份有限公司 | Magnetic head loading system power test equipment |
| CN106141986A (en) * | 2015-04-22 | 2016-11-23 | 深圳长城开发科技股份有限公司 | HSA reversely installs COMB shifter |
| CN106141986B (en) * | 2015-04-22 | 2018-05-11 | 深圳长城开发科技股份有限公司 | HSA reversely installs COMB switching mechanisms |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103528754B (en) | A kind of measurement mechanism of diaphragm pressure sensor | |
| CN203982789U (en) | Magnetic head loading system power testing apparatus | |
| CN205049166U (en) | Maglev train suspension sensor static characteristic test system | |
| CN115267401B (en) | Quick test system of touch screen and test system of double-finger quick touch screen | |
| CN208538115U (en) | Fingerprint mould group test fixture and fingerprint module group test system | |
| DE102017120622A1 (en) | Double barrier vacuum seal for sealed data storage system | |
| CN1689074A (en) | Spin stand and head/disc test device | |
| CN205522959U (en) | Alignment platform | |
| CN105336345A (en) | Magnetic head loading force test device | |
| CN1317617C (en) | Method for loading single head in a hard disk drive | |
| CN206960605U (en) | Fingerprint module test equipment | |
| CN208013936U (en) | multi-point touch detection device | |
| CN213336821U (en) | Test module | |
| CN204228421U (en) | A kind of car end closes system test-bed | |
| CN211264218U (en) | Computer display card fixing frame convenient to install | |
| CN113427257A (en) | Automatic assembly integrated equipment for handwriting pen magnet and handwriting pen magnet assembly method | |
| CN109272806B (en) | Novel Chinese language and literature Chinese character writing device | |
| CN205210132U (en) | High accuracy probe loading device for PCB automatic test equipment | |
| CN208543288U (en) | Framework repair flash device in a kind of display | |
| CN202908228U (en) | Mobile library rotation buffering mechanism | |
| CN218787828U (en) | Inertia measurement unit test platform | |
| CN202393608U (en) | Testing mechanism | |
| CN105374368B (en) | Magnetic head arm loading force test machine setting method and HGA tooling | |
| CN206411212U (en) | PTTO alternating current-direct current automatic testing equipments | |
| CN109406855A (en) | A kind of computer motherboard voltage electric probe device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |
|
| CX01 | Expiry of patent term |