JPH0696427A - Gimbal alignment method - Google Patents

Abstract

PURPOSE:To improve adjustment accuracy by fixing temporarily a gimbals on the bottom surface of a gimbals supporting arm, positioning to adjust its position by the clamper of a position adjusting device and thereafter, sticking the gimbals on the gimbals supporting arm. CONSTITUTION:An SI assy (assembly) 3 is fixed temporarity on the bottom surface of the gimbals supporting arm 5 by a temporarily fixing member 4 such as a pressure sensitive adhesion double coated tape. An arm 5 is attached to a carriage 8 through leaf spring part 6 for opening/closing a head, and an FDD head assy 9 is set on the table 12 of the position adjusting device 11 through a jig. The gimbals 2 is clamped by a pair of crampers 13 on the left and right of the device 11, and the assy 3 is positioned by moving the gimbals 2 in the directions of X, Y, THETA, Z axes. After positioning the assy 3, the gimbals 2 is stuck and fixed on the arm 5 by adhesive material. Thus, positional accuracy is improved remarkably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an FDD (floppy disk drive) gimbal alignment method.

[0002]

2. Description of the Related Art In vertical alignment of an FDD head assembly, as shown in FIG.
And an S1 assembly 103 including a gimbal 102 to which the magnetic head 101 is attached is attached to a gimbal support arm (hereinafter,
The S1 arm assembly 105 is formed by adhering to the S1 arm) 104 to form the S1 arm assembly 105.
The leaf spring portion 106 for opening and closing the rear end portion is clamped by the clamper 107 of the position adjusting device, and the above S
A method of moving the entire one-arm assembly 105 in the X-axis, Y-axis, θ-axis direction, etc. to perform positioning adjustment and then tightening and fixing the leaf spring portion 106 to the carriage 109 side by a screw 108 has been searched for.

[0003]

By the way, in the above-mentioned conventional method, as described above, the S1 arm assembly 105 is positioned and adjusted by the clamper 107 of the position adjusting device, and then fixed to the carriage 109 by the screw 108. Therefore, when the screw is fastened, there is a problem that the S1 arm assembly 105 slightly rotates in the screw fastening direction to cause a positional deviation, which significantly deteriorates the adjustment accuracy of the combined alignment.

The present invention has been made for the purpose of providing a gimbal alignment method capable of solving the above conventional problems and improving the alignment accuracy.

[0005]

According to the gimbal alignment method of the present invention, a gimbal having a magnetic head attached is temporarily fixed to the lower surface of a gimbal support arm, and the gimbal temporarily fixed to the gimbal support arm is adjusted in position. After the positioning was adjusted by the clamper, the above-mentioned gimbal was adhered and fixed to the gimbal support arm.

[0006]

[Operation] Even after the gimbal support arm is fastened to the carriage with a screw, the position adjustment of the gimbal can be performed with respect to the gimbal support arm, whereby the positional deviation of the gimbal support arm when fastening with the screw is a united alignment. It is possible to prevent the adjustment accuracy from being adversely affected and to dramatically improve the adjustment accuracy.

[0007]

The present invention will be described below with reference to the drawings. In FIG. 1, 1 is a magnetic head, 2 is a gimbal in which the magnetic head 1 is attached to the center of the lower surface, 3 is an S1 assembly consisting of the magnetic head 1 and the gimbal 2, and the S1 assembly 3
Is temporarily fixed to the lower surface of the gimbal support arm (hereinafter referred to as S1 arm) 5 by a temporary fixing member 4 such as a double-sided adhesive tape.

The S1 arm 5 is attached to a carriage 8 with a screw 7 via a leaf spring portion 6 for opening and closing the head, and the magnetic bed 1 to the carriage 8 are used for FD.
A D head assembly 9 is configured, and the FDD head assembly 9 is set on the table 12 of the position adjusting device 11 via a jig (not shown).

The gimbal 2 is clamped by a pair of left and right clampers 13, 13 of the position adjusting device 11,
X-axis motor 14, Y-axis motor 15, θ-axis motor 16, Z
The shaft motor 17 moves the gimbal 2 in the X, Y, θ, and Z axis directions to position the S1 assembly 3.

Reference numeral 18 is an S0 head provided on the carriage 8.

The S1 arm 5 is provided with a pair of left and right oval notches 21 and 21.

Then, the tips of the pair of left and right clampers 13, 13 of the position adjusting device 11 are inserted into the notches 21, 21, and the clamped portions provided on the gimbal 2 at the tips of the clampers 13, 13. After the parts 22 and 22 are clamped, the gimbal 2 is displaced against the temporary fixing force of the temporary fixing member 4, the positioning of the S1 assembly 3 is adjusted, and then the gimbal 2 is bonded to the S1 with an adhesive (not shown). It is adapted to be fixed to the arm 5 by adhesion.

The notches 21 and 21 are provided for clamping the gimbal 2 with the clampers 13 and 13 from above the S1 arm 5 (the positioning adjustment of the S1 assembly 3 is S.
Since a reference disk is sandwiched between the magnetic head 1 of No. 1 and the magnetic head 18 of S0, and the signal recorded on the reference disk is used as a reference, clamping is performed by clampers 13 and 13 from below the S1 assembly 3. It is not possible),
The notches 21 and 21 are formed with a diameter larger than the diameter of the clampers 13 and 13, and the clampers 13 and 13 are fitted with so-called play.

Then, within the above play range, the gimbal 2
Can be displaced in the X and Y axis directions.

FIGS. 3A, 3B, 3C and 3D show modified examples of the notch 21 and the clamped portion 22 provided on the gimbal 2.

In FIG. 3A, both the cutout portion 21 and the clamped portion 22 are formed by a true circular hole.

In FIG. 3B, both the cutout portion 21 and the clamped portion 22 are formed by U-shaped grooves.

In FIG. 3 (C), the notch 21 is formed by a pair of U-shaped grooves, and the clamped portion 22 is formed by a stepped portion which projects toward the pair of U-shaped grooves. Has been done.

In FIG. 3D, the notch 21 is formed by a circular hole, and the clamped portion 22 is formed by a U-shaped groove.

4A, 4B, and 4C, instead of providing the notch 21 in the S1 arm 5, the gimbal 2 is formed wider than the S1 arm 5 and a part of the gimbal 2 is formed. S
1 shows a case in which one arm 5 is made to project from the side portion and the projecting portions 23, 23 are clamped by the clampers 13, 13 to perform positioning adjustment.

FIG. 4A shows a case where a U-shaped groove is formed in the protruding portion 23 as the clamped portion 22.

FIG. 4B shows a case where a circular hole is formed in the projecting portion 23 as the clamped portion 22.

FIG. 4C shows a case where a stepped portion is formed on the protruding portion 23 as the clamped portion 22.

In the embodiment, two clampers 13, 1 are used.
Although the gimbal 2 is clamped at 3, the clamper 13 may be one or three or more.

[0025]

The gimbal alignment method of the present invention has the following effects.

(1) Since the gimbal to which the magnetic head is attached is temporarily fixed to the gimbal support arm, the gimbal support arm is attached to the carriage by screwing the gimbal support arm to the carriage, and the gimbal is positioned at the final stage. The gimbal can be adjusted and adhesively fixed to the gimbal support arm, preventing the gimbal support arm from rotating and adversely affecting the position accuracy when screwing the gimbal support arm to the carriage as in the past. However, it is possible to dramatically improve the positional accuracy as compared with the conventional case.

(2) Even if the reference disk is sandwiched between the magnetic heads S1 and S0 and the positioning adjustment cannot be performed by clamping the gimbal from below the reference disk with the clamper of the position adjusting device, the gimbal is supported. Through the notch provided on the arm, the gimbal can be positioned and adjusted by clamping the gimbal from above the gimbal support arm with the clamper of the position adjusting device.

(3) Since the gimbal is formed wider than the gimbal support arm and a part of the gimbal is projected from the side portion of the gimbal support arm, the gimbal support arm is provided with a cutout portion in the same manner as described above. The gimbal can be positioned and adjusted by clamping the gimbal with a clamper from above the gimbal support arm.

[Brief description of drawings]

FIG. 1 is a perspective view.

FIG. 2 is a sectional view of a main part.

FIG. 3A to FIG. 3D are plan views of modified examples of cutouts.

4A to 4C are plan views of modified examples of the gimbal.

FIG. 5 is a perspective view of a conventional example.

[Explanation of symbols]

 1, 18 ... Magnetic Head 2 ... Gimbal 4 ... Temporary Fixing Member 5 ... Gimbal Support Arm 11 ... Position Adjusting Device 13 ... Clamper 21 ... Notch 23 ... Projection

Claims (3)

[Claims] 1. A step of temporarily fixing a gimbal to which a magnetic head is attached to a lower surface of a gimbal support arm, a step of positioning and adjusting the gimbal temporarily fixed to the gimbal support arm by a clamper of a position adjusting device, and the positioning adjustment. A gimbal alignment method comprising a bonding step of bonding the performed gimbal to a gimbal support arm. 2. The gimbal alignment method according to claim 1, wherein the gimbal support arm is provided with a notch, and the gimbal is clamped by a clamper of a position adjusting device through the notch to adjust the position of the gimbal. 3. The gimbal is formed to be wider than the gimbal support arm, a part of the gimbal is projected from a side part of the gimbal support arm, and the projection is clamped by a clamper of a position adjusting device to adjust the positioning of the gimbal. The gimbal alignment method according to claim 1, wherein