JPH0954928A - Track aligning device for magnetic head block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure stable and high precision track alignment by aligning track forming grooves of plural magnetic head blocks with a reference line setting means in the state of abutting the magnetic head blocks against a positioning member. SOLUTION: An electronic line EL is set to the track forming groove T3 formed on the magnetic head block B4. Based on the electronic line EL as a reference, the track forming groove T2 of the magnetic head block B2 and the groove T4 of the magnetic head block B4 are aligned in the direction Y. After completion of track alignment of the magnetic head block B4 to the block B2, a pitch feed stage is operated to move an adjusting mechanism part. Moreover, the magnetic head blocks B1 and B2 are aligned in the direction Y based on the electronic line EL as the reference. Thus, positioning adjustment on the grooves T1, T2 and T3 in the direction Y is completed along the electronic line EL.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track alignment device for a magnetic head block used in a recording / reproducing magnetic head of a data cartridge, for example.

[0002]

2. Description of the Related Art A data cartridge used for recording information in a computer or the like has a magnetic head for recording a signal on a magnetic tape and reproducing a signal on the magnetic tape. This type of magnetic head is composed of a plurality of magnetic head blocks.
It is configured by combining one magnetic head block or three or more magnetic head blocks and fusing with fusion glass. For example, in a conventional track alignment apparatus for a magnetic head block of this type, one of the two magnetic head blocks is mounted on a horizontal (Y-axis) adjustment stage, and the other magnetic head block is mounted. After the block is placed on the vertical (Z-axis) direction and tilt (θ-axis) direction adjustment stage, the relative positions of these two magnetic head blocks are adjusted.

[0003]

Therefore, since the conventional track alignment device can only align the tracks of two blocks with each other, the tracks of, for example, three or more magnetic head blocks are aligned at one time. It is not possible. Therefore, when the track positions of three or more magnetic head blocks are aligned, it is necessary to temporarily fix the three or more magnetic head blocks with an instant adhesive. Then, in order to match the height direction of the two selected blocks among the three or more magnetic head blocks temporarily fixed on the basis of the focus position of the microscope, the height direction between the three or more magnetic head blocks is adjusted. Positional variation is large. Further, it is troublesome to attach / detach each block when aligning when temporarily fixing three or more magnetic head blocks. Therefore, the present invention has been made to solve the above problems, and tracks of a plurality of magnetic head blocks can be aligned at one time, and tracks of a magnetic head block can be aligned with stable and high accuracy. It is an object to provide an alignment device.

[0004]

SUMMARY OF THE INVENTION In the present invention, the above object is an alignment device for aligning track grooves formed in a plurality of magnetic head blocks. Member, pressing means for pressing a plurality of magnetic head blocks against the reference member at this position, and a reference line for aligning the track groove of each magnetic head block with each other. And a reference line setting means for adjusting the track position of the magnetic head block. In the present invention, the pressing means mechanically presses the plurality of magnetic head blocks against the position reference member. Then, with these magnetic head blocks pressed against each other, the reference line setting means sets a reference line to align the track grooves of the magnetic head block with each other.
As a result, the track groove of each magnetic head block can be aligned along this reference line.

[0005]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limitations are given, the scope of the present invention is not limited to these modes unless otherwise specified to limit the present invention.

FIG. 1 is a perspective view showing a preferred embodiment of a track alignment apparatus for a magnetic head block according to the present invention. 2 shows the adjusting mechanism of the track alignment device of FIG. 1, and FIG. 3 shows the optical system and monitor of the track alignment device of FIG. In FIG. 1, a track alignment device for a magnetic head block includes an adjustment mechanism unit 10, an optical system unit 12, and a monitor 1.
4, a lighting device 16 and the like, and a base 18 and the like. The adjustment mechanism unit 10 and the lighting device 16 are provided with a base 18
On top of. The monitor 14 is supported by the support portion 14 a with respect to the base 18.

First, the adjusting mechanism section 10 will be described. The adjusting mechanism unit 10 is mounted on the pitch feed stage 20 with reference to FIGS. 2 and 5. The pitch feed stage 20 can move and position the adjustment mechanism 10 in the arrow X direction. The adjustment mechanism unit 10 includes a first support unit 22, a second support unit 24, a reference plate 26 that is a position reference member, and the like. As shown in FIG. 2, the first support portion 22 and the second support portion 24 have similar shapes such as a line symmetrical shape. The support plate 23 of the first support portion 22 can be moved and positioned in the arrow Y direction by the operation of the motor 22a. Further, the support plate 23 can be moved and positioned in the arrow X direction by the operation of the motor 22b. Similarly, the support plate 25 of the second support portion 24 can be moved and positioned in the arrow Y direction by the operation of the motor 24a. Further, the support plate 25 can be moved and positioned in the arrow X direction by the operation of the motor 24b.

As shown in FIGS. 2 and 5, the first support portion 2
A block support body 30 for supporting the plurality of magnetic head block bodies BB is provided between the second support portion 24 and the second support portion 24. The member 30a of this block support 30 is
As shown in FIG. 6, for example, four magnetic head blocks B
This is a part that supports 1, B2, B3, and B4. As shown in FIG. 5, the first support part 22 includes a push-up cylinder 35 as a pressing means. In addition, the second support portion 24
Has a push-up cylinder 35 as a pressing means. By operating these push-up cylinders 35, 35, the block body BB composed of the magnetic head blocks B1 to B4 is pushed up in the arrow Z direction (upward direction), and the upper surfaces of these magnetic head blocks B1 to B4 are used as references. Board 2
It is possible to abut against 6 and make it flush. The reference plate 26 described above is slidably placed on the support plate 25, and the reference plate 26 can be moved back and forth in the direction of the arrow X by the operation of the cylinder 40 that is the forward / backward operation means.

The optical unit 12 shown in FIG. 3 comprises a thin tube microscope 50 and two CCDs connected to the thin tube microscope 50.
(Charge Coupled Device) A camera 51 is attached. These CCD cameras 51 are connected to the monitor 14 via an electronic line separator 52. This thin tube microscope 5
0 is for observing the upper surface of the block body BB shown in FIGS. 4 and 6 by enlarging it at a predetermined magnification. The CCD cameras 51, 51 are adapted to display the images obtained by these thin tube microscopes 50 on the monitor 14 via the electronic separator 52. The electronic line separator 52 as the reference line setting means is an electronic line EL (also referred to as a reference line) for the block body BB shown in FIG. 4 in which the electronic line EL shown in FIGS. 4 and 7 is displayed on the monitor 14. )
Can be overlaid and displayed.

Next, with reference to FIG. 8, an operation procedure for aligning the track grooves T1, T2, T3 of the block body BB (magnetic head blocks B1 to B4) of FIGS. 4 and 6 will be described. First, as shown in FIG. 4, the magnetic head blocks B1 to B4 are stacked. Then, the block bodies BB formed in this way are placed on the member 30a of the block support body 30 as shown in FIG. 5 and set (step S1). Then, the cylinder 40 is operated to move the reference plate 26 in the arrow X direction to position the reference plate 26 on the block body BB. (Step S2).

Then, the thrust cylinders 35, 35 shown in FIG.
Is operated to push up the block body BB together with the member 30a of the block support body 30 in the arrow Z direction (upward direction) (step S3). Then, as shown in FIGS. 1 and 2, the surface of the block body BB as shown in FIGS. 4 and 6 is transferred through the thin-tube microscope 50 and the CCD camera 51 of the optical system unit 12 to the reference plate 26 of FIG. The image is displayed on the monitor 14 through the hole 26c. At this time, the electronic line separator 52 is moved to the magnetic head blocks B1 to B as shown in FIGS.
The electron line EL is set so as to substantially correspond to the four track grooves T1, T2, T3. (Step S4). That is, in order to sequentially capture the images of the gap portions of the blocks B1 and B2, the gap portions of the magnetic head blocks B2 and B3, and the gap portions of the magnetic head blocks B3 and B4, the images are transmitted through the thin tube microscope 50 and the CCD camera 51. Are displayed on the monitor 14, and the electronic line EL is also displayed on the monitor 14 in an overlapping manner.

Next, the alignment of the grooves 1, 2 and 3 of the four magnetic head blocks B1 to B4 shown in FIGS. 4 and 6 will be performed with the electron line EL as a reference. The positions of the grooves T1, T2, T3 for forming tracks are adjusted as follows, for example. First, the electron line EL is aligned with the track forming groove 3 formed in the magnetic head block B4. Using the electron line EL as a reference, the track forming groove T2 of the magnetic head block B2 and the groove T4 of the magnetic head block B4 are aligned in the Y direction (step S5). Then, the magnetic head blocks B2 and B4
When the track alignment is completed, the pitch feed stage 20 shown in FIG. 2 is differentially moved to slightly move the entire adjustment mechanism unit 10 in the arrow X direction (X1 direction) (step S6). It is necessary to move the adjustment mechanism section 10 in this manner because the field of view associated with the proper magnification of the thin-tube microscope 50 cannot simultaneously capture the grooves T1, T2, T3 for forming tracks, and therefore the blocks are gradually blocked. This is because it is necessary to change the field of view of the thin tube microscope 50 while moving the body BB in the direction of the arrow X1.

Further, Y of the magnetic head blocks B1 and B2
The alignment in the direction is performed based on the electronic line EL (step S7). As a result, the grooves T1, T2, T
The position adjustment of 3 in the Y direction is completed along the electronic line EL.

With the above-mentioned four magnetic head blocks B1 to B4 of the block body BB having been aligned, the block body BB is then pushed into the gripping jig 100 shown in FIGS. 9 to 11 to set it. To do. The gripping jig 100 includes a scissor plate 110 and a scissor plate 12.
0, and these scissor plates 110 and 120 press and hold the block body BB from both sides.

The position of the scissors plate 110 can be adjusted by a screw 111. Alternatively, the position of the scissor plate 120 can be adjusted by the ball screw 121 and the screw 122. With the block body BB set on the gripping jig 100 as shown in FIG. 9 (steps S8, S9), the push-up cylinders 35, 35 of FIG. 5 are lowered (step S10), and the reference plate 26 is removed (step S11), and the block body BB is removed from the adjusting mechanism unit 10 (step S12). And
The block body BB is reset from the gripping jig of FIG. 9 to a fusion jig (not shown), and the block body BB is transferred to the fusion furnace (step S13). In the fusion furnace, block B
B will be integrally fixed by the fused glass.

As described above, in the embodiment of the present invention, the bottom surface side of the plurality of magnetic head blocks B1 to B4 is abutted against the reference plate 26 side by the rod of the push-up cylinder 35. As a result, the upper surfaces of the head blocks B1 and B4 are flush with each other as shown in FIG. Then, in this state, the side surfaces of the head blocks B1 to B4 are independently held, and the position is adjusted in the arrow Y direction (horizontal direction) in FIG.
This position adjustment is performed manually or automatically. By performing the position adjustment in this way, the positions of the track forming grooves T1, T2, T3 are adjusted with the electron line EL as a reference. At this time, the magnification required by the thin tube microscope 50 of FIG. In order to obtain the resolution, it is not possible to capture all the gaps of each magnetic head block in the visual field at once. Therefore, by differentially moving the pitch feed stage 20 of FIG. 2 to pitch feed the entire block body BB in the arrow X direction (X1 direction), the gap between the block bodies is captured by the thin tube microscope 50 and the monitor 14 is installed. It is designed to be projected on.

The block body BB fused by the fusion furnace
Are further subdivided by a predetermined method to be formed into a required magnetic head shape. The obtained magnetic head can be used as a recording / reproducing head chip for a data cartridge, for example. The above-mentioned track forming groove is a groove corresponding to a recording track formed on the magnetic tape. By the way, the present invention is not limited to the above-described embodiment, and the present invention can be applied to any magnetic heads in which three or more magnetic block bodies are combined. In addition, the motors 22a, 22b,
A manual micrometer head may be used instead of 24a and 24b.

[0018]

As described above, according to the present invention,
Tracks of several magnetic head blocks can be aligned at one time, and stable track alignment can be performed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a track alignment device for a magnetic head block of the present invention.

FIG. 2 is a perspective view showing an adjusting mechanism portion of the track alignment device of FIG.

3 is a diagram showing an optical system unit of the track alignment device in FIG.

FIG. 4 is a plan view showing a plurality of head blocks.

FIG. 5 is a view showing an adjusting mechanism portion for abutting a block body composed of a head block against a reference plate.

FIG. 6 is a perspective view showing a block body, a reference plate, an electronic line, and the like in FIG.

FIG. 7 is an enlarged view showing a part of FIG. 4;

FIG. 8 is a flowchart showing track alignment work.

FIG. 9 is a plan view showing a gripping jig.

FIG. 10 is a side view of the gripping jig.

FIG. 11 is another side view of the gripping jig.

[Explanation of symbols]

 26 reference plate (position reference member) 40 cylinder (advance / retreat operation means) 52 reference line setting means B1 to B4 magnetic head block EL reference line T1, T2, T3 track forming grooves

Claims (3)

[Claims] 1. A position aligning device for aligning track grooves formed in a plurality of magnetic head blocks, wherein a position reference member and a plurality of position reference members are provided for the position reference member. A magnetic recording medium, comprising: pressing means for pressing the magnetic head block; and reference line setting means for setting a reference line for aligning the track grooves of the magnetic head blocks with each other. Head block track alignment device. 2. The track alignment device for a magnetic head block according to claim 1, further comprising advancing / retreating operation means for advancing or retracting the position reference member toward or away from the magnetic head block side. 3. The track alignment device for a magnetic head block according to claim 1, wherein each magnetic head block is movable and adjustable along a direction orthogonal to a direction in which the magnetic head block is pressed against the pressing plate.