WO2007116569A1 - Vcm機構を有する磁気ヘッド試験用スピンドルステージおよび磁気ヘッド自動着脱装置 - Google Patents
Vcm機構を有する磁気ヘッド試験用スピンドルステージおよび磁気ヘッド自動着脱装置 Download PDFInfo
- Publication number
- WO2007116569A1 WO2007116569A1 PCT/JP2006/325709 JP2006325709W WO2007116569A1 WO 2007116569 A1 WO2007116569 A1 WO 2007116569A1 JP 2006325709 W JP2006325709 W JP 2006325709W WO 2007116569 A1 WO2007116569 A1 WO 2007116569A1
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- WO
- WIPO (PCT)
- Prior art keywords
- magnetic head
- hga
- head
- testing
- head arm
- Prior art date
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/105—Mounting of head within housing or assembling of head and housing
Definitions
- the present invention relates to a spindle stage for testing a magnetic head having a voice coil motor (VCM (Voice Coil Motor)) mechanism and a magnetic head automatic supply device.
- VCM Voice Coil Motor
- HGA Head Gimbal mounted on a conventional hard disk drive (magnetic disk drive)
- the Assembly / Head 'Gimbal' Assemblies are read and tested for their read and write heads (hereinafter referred to as “read and write heads”) before being mounted on the product.
- read and write heads In the read / write test of the magnetic head, it is necessary to carry out the test while positioning the read / write head exactly on the target position of the unformatted media (magnetic disk). For this reason, in the conventional spindle stage for testing a magnetic head, a piezo stage having high positioning resolution is generally provided, and a method of positioning the magnetic head by mounting the magnetic head on the piezo stage is adopted.
- Japanese Patent Application Laid-Open No. 2002-214374 Japanese Patent Application Laid-Open No. 2002-214374.
- the conventional piezo stage can not sufficiently follow the positional fluctuation due to NRRO (Non R mark etable Run-Out) accompanying the rotation of the magnetic disk, and the positional fluctuation due to the temperature drift. There was a problem to occur. Furthermore, since the piezo stage is based on linear motion, there is a problem that it is difficult to continuously change the skew angle by seeking the head position on the medium as in a hard disk drive. The force and piezo stage were expensive.
- the present invention has been made in view of the pressing problems of the prior art, and uses a piezo element.
- An object is to provide a spindle stage for a magnetic head test which can perform high-accuracy servo following by an inexpensive VCM mechanism without using it, and to provide an automatic magnetic head supply device capable of automatically supplying a magnetic head. I assume.
- a spindle stage for testing a magnetic head for achieving the above purpose comprises: a head arm device having a head arm portion swingably driven by a VCM mechanism; and a HGA mounted on the head arm portion.
- a spindle stage for testing a magnetic head which is loaded on the surface of a medium to measure electrical and mechanical characteristics, and a fitting portion in which a boss for swinging the HGA is detachably fitted to the head arm portion.
- the clamp member is movably formed at a release position where the HGA can be attached and detached, and an engagement position where the HGA is engaged to lock the swing-edge boss with respect to the fitting portion.
- a clamp lever is provided with a resilient member which has a claw and is biased to pivot to an engaged position. The selection of the length of the club lever and the selection of the resilient member for pivoting makes it easy to select the resonant frequency characteristic of the movable part.
- a contact base on which a plurality of electric contacts provided at the end of the FPC drawn out from the HGA attached to the head arm portion, the contact base comprising the plurality of contact bases
- the contact lever includes a plurality of electrical contacts that are movable to a connection position sandwiching the electrical contacts and a disconnection position that separates from the electrical contacts, and are connected to the plurality of electrical contacts when moved to the connection position.
- the connector with the FPC pulled out from the HGA is provided outside the head arm and outside the movable part, it is possible to further reduce the weight of the head arm and to improve the tracking performance by the VCM mechanism. In addition, it becomes easy to connect and disconnect the electrical contacts.
- the HGA includes a movable base plate on which the head arm device and the contact base are mounted, the movable base plate integrally including the head arm device and the contact base, and the HGA is outside the medium. Move to the unload position to be unloaded and the load position to be loaded onto the media. Head arm device and contact stand By moving to the load position and unload position, the following movement range of the head arm can be narrowed, and it can be influenced by the FPC force when moving between the load position and the unload position. Nor.
- the head arm apparatus further includes a restriction mechanism for restricting the movable range of the VCM mechanism.
- the restriction mechanism includes a restriction member protruding from the coil arm portion on which the VCM mechanism is mounted, and two restriction members provided on the movable base plate with the coil arm portion interposed therebetween. It is preferable that at least one of the restriction members be movable in a direction in which the movable range of the VCM mechanism is adjusted.
- the movable range of the VCM mechanism since the movable range of the VCM mechanism is restricted, the movable range of the FPC can be narrowed, and when moving the head arm device from the unloading position to the loading position via the movable plate, the VCM mechanism, There is no risk that the head arm will shake excessively and connection failure between the FPC and connector will occur.
- the tip of the HGA rides on the surface of the media rotating the magnetic head portion before the magnetic head portion is removed from the media.
- the tip end separates at the unloading position, and when the base plate moves from the unloading position toward the loading position, the tip portion runs before the magnetic head portion reaches the medium, The magnetic head portion is moved away from the media surface, and the ramp member has a ramp surface which gradually separates before the magnetic head portion gradually approaches the media surface and reaches the loading position.
- the head arm device is formed such that the outer side in the downstream direction is at the unloading position with respect to the rotating media. According to this configuration, it is possible to make the head arm device correspond to the HGA loaded on the lower surface of the media or the HGA loaded on the upper surface of the media with a slight change, and any type of HGA can be used. Even the head arm device can be detached from above.
- the present invention relates to an automatic magnetic head attaching / detaching device applied to a spindle stage for testing a magnetic head, wherein an adsorption portion for holding and releasably adsorbing the HGA, and a clamp member of the head arm portion are pressed to A transfer head having a release member for rotating the clamp member to the release position against the resilient biasing member, the transfer head being configured to fit the adsorbed HGA to the fitting portion; The release member rotates the clamp member against the resilient biasing member to a release position, and the swing boss of the HGA is fitted to the fitting portion, and the release member then clamps the clamp member.
- the clamp member is released to rotate to the engagement position by the biasing force of the resilient biasing member, and the locking portion locks the HGA, and the suction portion releases the suction of the HGA to separate. It has a feature in doing. Since the mechanism for attaching and detaching the HGA to the head arm portion is the release of the clamp member and the engagement between the swaging boss and the fitting portion, the structure of the transfer head is simple and automation is easy.
- the transfer head is mounted on a movable arm movable in the vertical and lateral directions, and the movable arm adsorbs the HGA placed on the supply tray.
- the suctioned HGA is moved to the head arm unit at the unloading position.
- FIG. 1 is a view showing an example of a magnetic head (HGA) to be tested / measured by the device of the present invention, wherein (A) is a front view, (B) is a side view of a loaded state, and (C) is It is a side view of unloading condition.
- HGA magnetic head
- FIG. 2 A plan view showing an embodiment of the VCM mechanism of the present invention
- FIG. 3 shows the main part of the VCM mechanism, (A) is a side view, and (B) is a side view of a state where the leaf spring of the head arm is pushed down.
- FIG. 4 is an enlarged plan view showing an essential part of an embodiment of a VCM mechanism of the present invention.
- FIG. 5 An enlarged view of the main part of the VCM mechanism, (A) is a side view, and (B) is a side view of a state in which a leaf spring of the head arm is pushed down.
- FIG. 6 A perspective view schematically showing the mounting / dismounting structure of the head arm and the HGA, wherein (A) is a perspective view from above and (B) is a perspective view from below.
- FIG. 7] (A) to (D) show the state of the main part of the embodiment of the device for attaching and detaching the HGA to the head arm. Are shown in different stages.
- FIG. 8 A plan view of the head arm and its periphery showing a connection mechanism for connecting the read / write signal terminal of the HGA mounted on the head arm.
- FIG. 9 shows the same connection mechanism, (A) is a side view in the released state, and (B) is a side view in the connected state.
- FIG. 10 shows an embodiment mounted on a coarse motion actuator mechanism for bringing the head arm of the present invention to an unloading position and a loading position, wherein (A) is a plan view and (B) is a side view.
- FIG. 11 A plan view showing the fine movement range of the head arm on the coarse motion actuator mechanism.
- FIG. 12 A plan view illustrating movement of the head arm between an unloading position and a loading position by the same coarse movement actuator mechanism.
- FIG. 13 A view showing the lamp structure mounted on the same device, wherein (A) is a plan view and (B) is a side view.
- FIG. 14 It is a side view explaining the relationship between the load 'unload' tab and slider of HGA by the same ramp structure.
- FIG. 15 A diagram showing the structure of the media and head arm device when the device of the present invention is applied to a magnetic head for reading and writing on the lower surface of the media, wherein (A) is a plan view and (B) is (A). From the right side of.
- FIG. 16 A diagram showing the structure of the media and head arm device in the case where the device of the present invention is applied to a magnetic head for reading and writing on the upper surface of the media, wherein (A) is a plan view and (B) is From the right side of.
- Fig. 1 shows the HGA to be tested / measured by the spindle stage for testing a magnetic head according to the present invention, wherein (A) is a front view, (B) is a side view of a loaded state, and (C) is an unloaded state. Side view of FIG.
- a magnetic head of a hard disk drive comprises a slider integrally formed with a read / write head, a load beam for supporting the slider, and a suspension arm portion.
- the illustrated HGA 10 has a base plate 12, a load beam 13, and a load beam 13 mounted on the tip of the load beam 13 as a suspension arm 11, with a read / write head (read head and write head) 14a at the tip of the media facing surface.
- a slider 14 formed on the body is provided.
- a load 'unload' tab 15 having a convex part is formed in a protruding manner at the tip of the suspension arm 11, and a swage is attached to the head arm (aactuator actuator arm or swing arm) on the base plate 12 A boss for swaging 16 is formed.
- An FPC 17 is connected to a read / write terminal (not shown) of the slider 14 connected to the read / write head 14 a, and the FPC 17 is drawn rearward from the suspension arm 11.
- the end of the FPC 17 is provided with an electrical contact 18 in which four contacts, which are contacts of signal lines connected to the read / write terminal of the slider 14, are exposed.
- the lower surface 100a On the surface of the medium 100, in this embodiment, the lower surface 100a, so-called servo writing is previously performed by a known servo writer or the like. For example, a number of tracks cut at a predetermined sector are written concentrically. Further, as the medium 100, a medium in which a servo pattern is pre-written can be used.
- FIG. 2 to FIG. 2 and 4 are plan views showing the main parts of the head actuator
- FIGS. 3 (A) and 5 (A) are the same side views
- FIGS. 3 (B) and 5 (B) are the same head arm.
- FIG. 6 is a side view of the state in which the leaf spring (leaf spring) of FIG.
- FIG. 6 is a perspective view schematically showing the attachment / detachment structure of the head arm and the HGA, wherein (A) is a perspective view seen from above, and (B) is a perspective view also showing a downward force.
- 4 and 5 are enlarged views of the main parts of FIGS. 2 and 3, respectively.
- the head arm device 20 includes a bearing unit portion 21, a coil arm portion 22 having a voice coil 23 forming a VCM mechanism integrally formed with the bearing unit portion 21, and a coil arm portion 22. And a head arm portion 24 extending in the opposite direction.
- the bearing unit portion 21 is pivotally supported on the movable base plate 61 (see FIGS. 10 to 12), and although not shown, a permanent magnet is interposed between the voice coil 23 and the movable base plate 61. They are arranged, and these constitute the VCM mechanism.
- the voice coil 23 is shown As is known, a drive current is supplied from a drive control circuit via an FPC as is known, and the head arm unit 24 is driven to follow.
- a swaging boss hole 25 to which the swaging boss 16 of the HGA 10 is fitted is formed in the vicinity of the tip end portion of the head arm portion 24 in the vicinity of the tip end portion of the head arm portion 24, a swaging boss hole 25 to which the swaging boss 16 of the HGA 10 is fitted is formed. Further, a rectangular opening 26 extending in the radial direction is formed in the head arm portion 24 between the bearing unit portion 21 and the boss hole 25 for swaging, and the clamp lever 30 is mounted in the opening 26. .
- the clamp lever 30 is pivotally supported by a shaft 31 extending in a tangential direction of a circle centered on the bearing unit portion 21.
- the pressing claw 32 is formed at the tip of the shaft 31 in the outer circumferential direction
- the lever 33 is formed on the bearing unit 21 side of the shaft 31.
- the lever 33 is several times longer than the length from the shaft to the pressing claw 32.
- the pressing claw 32 is positioned near the boss hole 25 for swaging, and when the clamp lever 30 is rotated in the clockwise direction (right rotation) as shown in FIG. 5, it approaches the boss hole 25 for swaging and counterclockwise. It is formed so as to be separated from the boss hole 25 for swaging when it is rotated in the direction (left rotation).
- a leaf spring 34 is provided, which is extended on the bearing unit 21 side.
- the leaf spring 34 abuts on the tip end portion of the lever 33 and rotates and biases the clamp lever 30 in the clamping direction (clockwise in the figure) in which the pressing claw 32 approaches the boss hole 25 for swaging at all times.
- FIGS. 3 and 5 shows the rear end face of the suspension arm 11 (the rear of the base plate 12) by the pressing claw 32 of the clamp lever 30 rotated in the clamp (clockwise) direction by the biasing force of the leaf spring 34.
- (B) in FIG. 3 and FIG. 5 shows a state in which the lever 33 is pivoted in the unclamping direction against the biasing force of the leaf spring 34.
- the swage boss 16 pressed by the pressing claw 32 is pressed and hooked to the corner 25a (FIG. 6A) of the swaging boss hole 25 and is fixed by the hook.
- the operation for attaching and detaching the HGA 10 to and from the head arm device 20 and the operation for attaching and detaching are as follows.
- the lever 33 is pressed against the biasing force of the leaf spring 34 to turn the clamp lever 30 in the release direction (Fig. 3 (B), Fig. 5 (B)).
- the swing boss 16 of the HGA 10 is fitted into the swing boss hole 25.
- the pressing force of the clamp lever 30 is removed, the clamp lever 30
- the biasing force of the spring 34 rotates in the locking direction, and the pressing claw 32 presses and engages the end face of the base plate 12 to press and fix the swaging boss 16 against the inner wall of the swaging boss 25 (see FIG. Figure 3 (A), Figure 5 (A).
- the clamp lever 30 is pivoted by the leaf spring 34, but may be pivoted by a torsion spring.
- the type of spring and the shape of the clamp lever 30 can be changed, and it is preferable to select or change according to the natural vibration, weight and the like of the movable part.
- the HGA 10 is adsorbed and lifted from the magnetic head supply tray by the transfer head 40, carried onto the head arm portion 24 of the head arm device 20, and mounted on the head arm portion 24.
- the HGA 10 is removed from the head arm unit 24 by the transfer head 40 and carried to a corresponding sorting tray divided into, for example, non-defective products and defective products according to the test / measurement results. Do.
- the transfer head 40 is provided with a suction head 41 for detachably holding the HGA 10 and a push pin 42 for pressing the lever 33.
- the suction head 41 protrudes from the lower surface of the transfer head 40.
- the suction head 41 has a recess or positioning projection or the like for positioning the HGA 10 relative to the transfer head 40 when suctioning the base plate 12 of the HGA 10.
- the transfer head 40 is generally mounted on a robot arm (not shown) and moved horizontally and vertically between the tray and the HGA 10.
- an air suction head can be used as the suction head 41.
- the push pin 42 also be driven to project and pull in by means of an air cylinder, a linear motor and an electromagnetic plunger.
- the transfer head 40 having the HGA 10 sucked by the suction head 41 is moved until the swaging boss 16 is positioned immediately above the swaging boss hole 25 (FIG. 7 (A)). At this time, the push pin 42 protrudes from the lower surface of the transfer head 40.
- the transfer head 40 is lowered so that the swaging boss 16 fits into the swaging boss hole 25.
- the push pin 42 pushes down the lever 33 of the clamp lever 30 to rotate it against the biasing force of the leaf spring 34, and the pressing claw 32 is moved to the release position not interfering with the base plate 12 and the transfer head 40.
- the swaging boss 16 is fitted into the swaging boss hole 25 (Fig. 7 (B)).
- the push pin 42 is pulled into the transfer head 40 and the lever 33 is released.
- the clamp lever 30 is rotated in the engaging direction by the elastic biasing force of the leaf spring 34, and the pressing claw 32 presses the end of the base plate 12 to fix the HGA 10 to the head arm 24 (see FIG. 7 (C)).
- the suction by the suction head 41 is released to release the HGA 10.
- the transfer head 40 is lowered onto the HGA 10 and the head arm device 20 from the state of FIG. 7 (D), and the suction head 41 is in contact with the base plate 12 and the load 'unload' tab 15 (FIG. C))
- the suction by the suction head 41 is started, and the push pin 42 is protruded from the transfer head 40 to rotate the clamp lever 30 to the release position (FIG. 7 (B)).
- the transfer head 40 with the suction head 41 suctioning the HGA 10 is raised (FIG. 7 (A)) and moved to a predetermined tray.
- the HGA 10 can be easily attached to and removed from the head arm device 20. Since the force, the weight of the head arm unit 20 and the inertia mass at the time of rocking are small, the seek and follow / f-covering performance is not impaired.
- a contact base 50 is disposed in the vicinity of the bearing unit portion 21, and electricity is placed on the contact base 50.
- a mounting portion 51 on which the contact 18 is mounted is formed, and a contact lever 53 for pressing the mounting portion 51 is provided in a state where the electrical contact 18 is mounted on the mounting portion 51.
- the mounting portion 51 is formed in a concave shape in which the electrical contact 18 is fitted so that the electrical contact 18 can be positioned and displacement can be prevented.
- the contact lever 53 is pivotally supported by the contact base 50 via a horizontally extending shaft 52.
- the contact lever 53 is provided at its free end with a contact 54 corresponding to the electric contact 18 on the surface facing the electric contact 18 on the mounting portion 51, and the electric contact 54 corresponds to the contact 54 when pinched.
- the contact 18 is formed so as to be in pressure contact and conducted.
- the mounting portion 51 is provided with a guide recess 54 a at which the electrical contact 18 can be easily positioned at the position where the electrical contact 18 is to be placed.
- a head amplifier 55 mounted on the FPC 56 is mounted, and the contact 54 is connected to the input terminal of the head amplifier 55. Furthermore, the FPC 56 is pulled out of the contact lever 53 and connected to the control circuit of the test apparatus.
- the contact lever 53 is formed so as to be pivotally movable between a connection position (FIG. 9 (A)) for clamping the electrical contact 18 and a disconnection position (FIG. 9 (B)) for releasing the electrical contact 18. ing. Furthermore, it is preferable that the contact table 50 incorporates drive means such as an electromagnetic actuator, an aer cylinder, etc. for rotating the contact lever 53 between the connection position and the disconnection position.
- drive means such as an electromagnetic actuator, an aer cylinder, etc. for rotating the contact lever 53 between the connection position and the disconnection position.
- the contact base 50 is provided outside the head arm device 20 and the electrical contact 54 and the head amplifier 55 are also provided on the contact base 50, the head arm device The 20 movable parts have been reduced in weight.
- the head arm portion 24 of the head arm device 20 rotates, the FPC 17 elastically deforms. That is, the pivotable range of the head arm portion 24 is restricted within the elastic deformation range of the FPC 17. Therefore, it is difficult to pivotally move the head arm 24 between the loading position and the unloading position outside the medium 100. Therefore, in the embodiment of the present invention, the head arm device 20 and the contact table 50 are moved to the unload position and the load position by the coarse motion actuator mechanism 60, and the voice coil of the head arm device 2 is at the load position.
- the head arm unit 24 is It was set as the structure made to micro-rotate.
- the head arm device 20 and the contact base 50 are mounted on the movable base plate 61 of the coarse motion actuator mechanism 60, and loading and unloading are performed by the movement of the movable base plate 61.
- the swing range of the head arm 24 driven by the voice coil 23 is limited to the swing angle ridge which is the following range (movable distance X) required for the test / measurement of the slider 14. It is sufficient for the rocking angle to track several to several tens of tracks.
- FIG. 10 (A) is a plan view
- (B) is a side view
- FIG. 11 is a plan view for explaining the movable range of the head arm device 20
- FIG. 12 is a loading position and unloading of the head arm device 20 and the contact base 50. It is the top view which showed a mode that it moved to the position.
- the head arm device 20 and the contact base 50 are mounted on a movable base plate 61 having an L shape in plan view.
- a shaft 21a protruding from the lower end of the bearing unit portion 21 is inserted into a bearing 61a provided on a movable base plate 61, and is pivotally supported by itself.
- the contact base 50 is fixed on the movable base plate 61
- the movable base plate 61 is supported by the base frame 110 of the test apparatus so as to be freely pivotable by an axis 65a concentric with the bearing 61a. Further, with the shaft 65a as the rotation shaft of the rotary actuator 65, the movable base plate 61 is rotated by the rotary actuator via the shaft 65a to the unloading position and the loading position.
- the rotary actuator 65 can be an electromagnetic actuator, an electromagnetic actuator or an air piston cylinder mechanism.
- the load position where the slider 14 is loaded is one position by the coarse motion actuator mechanism 60.
- the load position may be a plurality of positions or may be loaded at a position designated by the user. .
- a restricting protrusion 22 a protruding from one end of the coil arm portion 22 is located between the fixed restricting pin 62 fixed on the movable base plate 61 and the movable restricting pin 63. did The pivoting range of the coil arm portion 22 is restricted within an angular range in which the regulating projection 22a contacts the fixed regulating pin 62 and the movable regulating pin 63, that is, within the angular range.
- the slider 14 (read / write head 14a) of the HGA 10 mounted on the head arm 24 moves in the circumferential direction centering on the bearing unit 21 by the distance X, media 10 Move in the radial direction of 0.
- the distance X is a distance which can move between a plurality of tracks of the medium 100, and is several tens of micro meters if it corresponds to the current mainstream track density.
- the movable restricting pin 63 is formed so as to be able to move close to and move away from the fixed restricting pin 62, so that the movable angle ⁇ by this contact and separation movement, and hence the movable distance X when following the slider 14 Can be adjusted.
- FIG. 12 shows a plan view of a state in which the head arm device 20 is moved to the unloading position and the loading position.
- the movable base plate 61 is rotatably held at the unloading position indicated by the broken line.
- the transfer head 40 detaches the HGA 10.
- the movable base plate 61 is rotated to the loading position, and the HGA 10 is held at a position facing the predetermined track of the medium 100.
- the solid line in the figure is the load position. At this load position, testing / measurement of HGA 10 is performed.
- the head arm device 20 is subjected to following control within a range of a rotation angle whose restriction projection 22 a is restricted by the fixed restriction pin 62 and the movable restriction pin 63.
- the coarse motion actuator mechanism 60 is pivoted to the unloading position, the HGA 10 is removed from the head arm device 20 by the transfer head 40, and the new HGA 10 is mounted on the head arm device 20. Be done.
- the coarse moving actuator mechanism 60 for moving the entire head arm device 20 to the unloading position and the loading position is provided, and the head arm device 20 is loaded by the coarse moving actuator mechanism 60. Since the positioning is performed by the VCM mechanism after the movement to the position, even if the movable range of the head arm device 20 is limited by the FPC 17, sufficient following control can be performed for the test / measurement of the HGA 10.
- the embodiment shown in FIG. 12 is configured such that the slider 14 is located on the upper surface of the head arm device 20 and loaded on the lower surface 100 a of the medium 100. Further, in the HGA 10, as shown in FIG. 1 (C), the suspension of the suspension arm 11 is bent in the unloading state. Therefore, even if it is attempted to rotate the slider 14 from the unloading position to the loading position, the suspension arm 11 can not be loaded in contact with the peripheral portion of the medium 100. Therefore, in the embodiment of the present invention, the ramp structure for loading and unloading the slider 14 is provided. Embodiments of the lamp structure of the present invention are shown in FIG. 13 and FIG.
- the lamp block 70 is a type for loading the slider 14 on the lower surface 100 a of the medium 100, and includes a block 71 disposed close to the outer periphery of the medium 100, and the lower surface of the block 71 is In the outside of the media 100, the position force higher than the lower surface 100a of the media 100 also descends toward the center of the media 100 and enters the lower surface 100a of the media 100.
- the first slope surface 72 and the first slope surface 72 After falling, a slightly rising second slope surface 73 is formed.
- the first and second sloped surfaces 72, 73 are smoothly continuous, and are formed along the movement locus of the load 'unload' tab 15 in an arc shape centered on the rotation center of the bearing unit 21 in plan view. ( Figure 13 (A)).
- the slider 14 and the load / unloading tab 15 are separated further outward than the ramp block 70.
- the suspension arm 11 is bent upward due to its elastic restoring force.
- the load 'unload' tab 15 is positioned lower than the first slope surface 72.
- Head Arm 24 Force S From this unloading position, the load 'unloading' tab 15 first abuts against the first sloped surface 72 when pivoting toward the loading position. After that, the load 'unload' tab 15 is pushed down by sliding on the elastic force of the suspension arm 11 while sliding on the first slope surface 72, the slider 14 and the load ' ⁇ unload' tab 15 of the media 100 It is located below the lower surface 100a.
- the load 'unload' tab 15 moves from the first slope surface 72 to the second slope surface 73, and along the second slope surface 73, the load beam Gradually ascends due to the elastic restoring force of 13, the slider 14 becomes the media 1
- the lower surface 100a of 00 is reached and held at a predetermined distance from the lower surface 100a.
- the inlet / unload / tab 15 separates from the second sloped surface 73, and the slider 14 moves toward the loading position with a fixed distance from the medium 100.
- the slider 14 is held at a predetermined distance from the lower surface 100 a of the medium 100, and the head arm portion 24 is held pivotably in the angle.
- the load / unload tab 15 contacts the second slope surface 73 and is in sliding contact with the second slope surface 73. And moves toward the unloading position located outside of the media 100 in the radial direction. In the process, the load 'unload' tab 15 separates from the lower surface 100 a of the medium 100. Further, when the head arm portion 24 pivots toward the unloading position, the load 'unloading' tab 15 moves from the second slope surface 73 to the first slope surface 72, and along the first slope surface 72. The elastic return force of the suspension arm 11 is raised to move away from the first slope surface 72 to reach the unloading position. In the unloading position, the slider 14 and the HGA 10 are sufficiently separated from the ramp block 70 and can be freely attached and detached to and from the head arm device 20 by the transfer head 40.
- the above embodiment is a spindle stage for testing a magnetic head, in which the magnetic head, that is, the slider 14 of the HGA 10 is loaded on the lower surface 100 a of the medium 100.
- Figure 15 ((
- A) shows a plan view
- B shows a view from the right side of (A).
- the spindle motor 101 is fixed on the base frame 110, and the media 100 is fixed to the spindle shaft 102 of the spindle motor 101.
- the spindle motor 101 rotates counterclockwise (left rotation) in FIG. 15 (A).
- FIG. 16 shows an embodiment of a spindle stage for testing a magnetic head, in which an HGA for loading the upper surface is automatically attached and detached from above using the transfer head 40, and an accurate characteristic test can be performed.
- A) is a plan view
- B) is a view of the embodiment of (A) viewed from the right.
- the spindle motor 101 is fixed on the base frame 110, and the media 100 is fixed to the axis of the spindle motor 101.
- the spindle motor 101 rotates the media 100 in the counterclockwise direction in FIG. 15 (A).
- the head arm device 201 for loading the upper surface is configured such that the spindle motor 101 and the medium 100 disposed on the base frame 110 are turned upside down. That is, the media 100 and the spindle motor 101 are turned upside down and fixed so as to hang on the upper overhang of the U-shaped yoke 80. Since the drive direction and drive control of the spindle motor 101 are the same as those shown in FIG. 15, the medium 100 is rotated clockwise (clockwise) in this embodiment.
- the head arm device 20 (FIG. 15 (A)) for the lower surface load head has the center of the spindle shaft 102 and the bearing unit 21 at the downstream side of the rotation direction of the medium 100 (FIG. 15 (A)).
- the head arm device 201 for top surface loading (FIG. 16 (A)) is located on the downstream side of the rotational direction of the medium 100 while the unloading position is formed on the right side of the passing radial line). In the outward direction (Fig. 16 (A)), the unload position is located on the left side of the radial line passing through the center of the spindle shaft 102 and the bearing unit 21). It is different from the point force head arm device 20 which moves and rotates counterclockwise (left rotation) when moving.
- the coarse motion actuator mechanism 60 sets the shape and movement according to the load and unload directions.
- the HGA 10 for loading the upper surface can also be attached to and detached from the head arm portion 24 similarly to the HGA 10 for loading the lower surface.
- the transfer head 40 can be attached and detached and transferred.
- Spindle motor 1 Since the 01 and the media 100 are turned upside down, it is necessary to prepare a spindle motor and media for right rotation. Since the head arm device 20 and the contact table 50 having the same specifications can be used in the spindle stage apparatus for testing the magnetic head for loading the lower surface and the upper surface, the cost of parts can be reduced.
- the HGA for the upper surface loading and the lower surface loading can be performed in parallel.
- the test Z measurement can be performed, the cost of the device can be reduced, and the test Z measurement time can be shortened.
- the HGA since the HGA can be easily attached to and detached from the head arm portion and locked by the clamp member, the HGA can be easily attached to and detached from the head arm portion without increasing the weight of the head arm portion.
- VCM mechanism Since the VCM mechanism is used, it is possible to realize a highly accurate servo follower / f-gowing operation at low cost.
- the invention relating to the magnetic head automatic attachment / detachment apparatus, it is possible to pick up the HGA from the supply tray and attach it to the head arm portion by the transfer head having a simple structure. Also, since the mounting and demounting structure of the HGA is simple, it is easy to automate the mounting and demounting of the magnetic head without human hands.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/295,123 US20090086355A1 (en) | 2006-03-30 | 2006-12-25 | Spindle stage for testing magnetic head with vcm mechanism and automatic magnetic head mounting/demounting device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006093813A JP2007272937A (ja) | 2006-03-30 | 2006-03-30 | Vcm機構を有する磁気ヘッド試験用スピンドルステージおよび磁気ヘッド自動着脱装置 |
JP2006-093813 | 2006-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007116569A1 true WO2007116569A1 (ja) | 2007-10-18 |
Family
ID=38580871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/325709 WO2007116569A1 (ja) | 2006-03-30 | 2006-12-25 | Vcm機構を有する磁気ヘッド試験用スピンドルステージおよび磁気ヘッド自動着脱装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090086355A1 (ja) |
JP (1) | JP2007272937A (ja) |
CN (1) | CN101416247A (ja) |
WO (1) | WO2007116569A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7969689B2 (en) * | 2007-08-14 | 2011-06-28 | Seagate Technology Llc | Spacer keys with pivoting supports |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009026395A (ja) * | 2007-07-20 | 2009-02-05 | International Manufacturing & Engineering Services Co Ltd | 磁気ヘッドテスト用スピンドルステージのコネクタ構造 |
US8585205B2 (en) | 2009-10-07 | 2013-11-19 | Nigel J. Greaves | Gimbaled handle stabilizing controller assembly |
CN102640047A (zh) * | 2009-10-07 | 2012-08-15 | 奈杰尔·J·格里夫斯 | 装有万向接头的手柄稳定控制器组件 |
WO2012027549A1 (en) * | 2010-08-26 | 2012-03-01 | Equipois, Inc. | Multi-arm gimbal system |
JP2013206506A (ja) * | 2012-03-28 | 2013-10-07 | Hitachi High-Technologies Corp | ディスク検査装置 |
JP2014017032A (ja) * | 2012-07-09 | 2014-01-30 | Hitachi High-Technologies Corp | 磁気ヘッドユニット及び磁気ヘッド検査装置 |
CN103236266B (zh) * | 2012-12-31 | 2015-12-02 | 哈尔滨理工大学 | 磁头冲浪状态监测系统及磁头冲浪状态监测方法 |
CN107814151B (zh) * | 2017-10-26 | 2020-04-21 | 中国农业大学 | 一种片簧式柔性多功能运输工装 |
CN108481250B (zh) * | 2018-04-28 | 2023-09-26 | 苏州长城开发科技有限公司 | 一种hdd磁头返修拆除装置及其拆除工艺 |
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JPH05217134A (ja) * | 1992-02-03 | 1993-08-27 | Hitachi Electron Eng Co Ltd | 磁気ヘッドのクランプ機構 |
JPH097134A (ja) * | 1995-06-19 | 1997-01-10 | Hitachi Electron Eng Co Ltd | ヘッドテスターの磁気ヘッド装着方法 |
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JP2982761B2 (ja) * | 1997-09-25 | 1999-11-29 | 日本電気株式会社 | 磁気ヘッド位置決め機構 |
JP3476406B2 (ja) * | 2000-01-12 | 2003-12-10 | Tdk株式会社 | 磁気ヘッド位置決め装置 |
US6989949B2 (en) * | 2000-09-13 | 2006-01-24 | Sae Magnetics (H.K.) Ltd. | Performance test method of head gimgal assembly with precise positioning actuator |
US6980401B1 (en) * | 2003-04-30 | 2005-12-27 | Western Digital Technologies, Inc. | Head stack and actuator arm assemblies including a bobbin to stiffen the coil portion of an actuator of a hard disk drive and disk drives including the same |
JP2008027519A (ja) * | 2006-07-21 | 2008-02-07 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ヘッド評価装置及びそれを用いた磁気ディスク装置の製造方法 |
-
2006
- 2006-03-30 JP JP2006093813A patent/JP2007272937A/ja not_active Withdrawn
- 2006-12-25 WO PCT/JP2006/325709 patent/WO2007116569A1/ja active Application Filing
- 2006-12-25 US US12/295,123 patent/US20090086355A1/en not_active Abandoned
- 2006-12-25 CN CNA2006800541398A patent/CN101416247A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH04232608A (ja) * | 1990-12-28 | 1992-08-20 | Hitachi Electron Eng Co Ltd | 磁気ヘッドのリード線の自動接続方式 |
JPH05217134A (ja) * | 1992-02-03 | 1993-08-27 | Hitachi Electron Eng Co Ltd | 磁気ヘッドのクランプ機構 |
JPH097134A (ja) * | 1995-06-19 | 1997-01-10 | Hitachi Electron Eng Co Ltd | ヘッドテスターの磁気ヘッド装着方法 |
JP2003151226A (ja) * | 2001-11-09 | 2003-05-23 | Internatl Business Mach Corp <Ibm> | ディスクドライブ装置、ハードディスクドライブ、ヘッド駆動装置、ストッパ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7969689B2 (en) * | 2007-08-14 | 2011-06-28 | Seagate Technology Llc | Spacer keys with pivoting supports |
Also Published As
Publication number | Publication date |
---|---|
US20090086355A1 (en) | 2009-04-02 |
JP2007272937A (ja) | 2007-10-18 |
CN101416247A (zh) | 2009-04-22 |
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