JPH06162454A - Magnetic head inspecting jig - Google Patents

Abstract

PURPOSE:To enhance universal applicability for the difference of base plates and also to improve operability. CONSTITUTION:A finger hanger 28 is shifted to the left side against the suspension 1 is abutted on the abutting part of an abutting material 22 and, then, the finger hanger 28 is slowly taken off. Thus, the base plate 2 is pressed to the abutting part 25 of the abutting material 22 by a pusher 26 so as to be held between them. A paddle holder 31 is attached on the lower surface of a jig mainbody 20 with a magnet. Then, the paddle 8 attached to the lead wire 7 of a thin film magnetic head 5 is held between the projected line of the paddle holder 31 and a plate-shaped projection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head inspection jig used when inspecting a magnetic head.

[0002]

2. Description of the Related Art FIGS. 4A and 4B are a plan view and a side view showing a schematic structure of a conventional thin film magnetic head inspection apparatus, respectively. In the figure, reference numeral 1 is a suspension, which is composed of a base plate 2, a load beam 3, and a gimbal 4, and a thin film magnetic head 5 as an object to be inspected is attached to the lower surface of the gimbal 4.

Here, the base plate 2 is for mounting the suspension 1 on the magnetic disk device, and is composed of a flat plate-shaped base plate with a central hole and a hollow boss portion, and the boss portion is crimped during mounting. It is installed.

Reference numeral 6 is a jig body, and the above-mentioned suspension 1 is temporarily fixed to the base plate 2 at the tip thereof. Reference numeral 7 is a lead wire of the thin film magnetic head 5, and 8 is a paddle soldered to the tip of the lead wire 7.

Reference numeral 10 is a read / write inspection device, in which the probe 11 is brought into contact with the two electrodes of the paddle 8,
Read / write inspection of the thin film magnetic head 5 is performed.
Reference numeral 12 is a magnetic disk board used in the read / write inspection.

Next, a method of attaching the suspension 1 to the jig body 6 will be described. (1) As shown in FIG. 5, the pin 13 is inserted into the central boss hole of the base plate 2 and screwed. (2) As shown in FIG. 6, the pin 14 having the expansion head is inserted into the boss hole of the base plate 2 to
The side portion of is pressed by the pressing member 15 toward the pin 14 to fix the base plate 2.

[0007]

The above-mentioned conventional inspection jig has the following problems. (A) When attaching the suspension 1 to the jig body 6,
Even if any of the above methods (1) and (2) is used, workability is poor and a lot of man-hours are required. (B) When the base plate 2 with different plate thickness (base thickness) or boss hole inner diameter is attached to the jig body, the diameter of the pin 13 must be changed in the case of the above method (1), which is versatile. There is a lack of problems. On the other hand, the above method (2) is a contact method with an expanding head, so that it is possible to cope with a slight change in the inner diameter of the boss hole. However, if the expanding head is made large so as to be able to handle the one having a large inner diameter, when the one having a small inner diameter is fixed, the protruding amount of the head from the base plate 2 downward becomes large. If the amount of protrusion is large, the base plate 2 is inspected at the time of inspection.
Since the gap between the lower surface of the magnetic disk and the magnetic disk is small, the head comes into contact with the magnetic disk. For this reason, the expansion head cannot be enlarged so much, and thus the method (2) is limited in versatility. (C) Since the lead wire 7 of the magnetic head 5 has various lengths, it is desirable that the position of the paddle 8 can be freely set. However, the conventional one cannot freely change the paddle position, which causes a problem of poor workability when attaching the paddle.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a magnetic head inspection jig having high versatility with respect to a difference in base plate and good workability.

[0009]

In order to solve the above-mentioned problems, the invention according to claim 1 is used for inspecting a magnetic head attached to the front end of a suspension having a base plate attached to its rear end. In an inspection jig for a magnetic head, an abutting portion that abuts an outer peripheral portion of the base plate, and a biasing member that is provided at a position facing the abutting portion and that biases the base plate toward the abutting portion. And are provided. Further, in the invention according to claim 2, in a magnetic head inspection jig used when inspecting a magnetic head attached to a tip of a suspension having a base plate attached to a rear end thereof, a lead wire tip of the magnetic head is attached to the tip. A paddle holder for temporarily holding the attached plate-shaped paddle, comprising a paddle holder slidably attached to the jig body.

[0010]

According to the first aspect of the invention, the suspension is fixed to the inspection jig by sandwiching the base plate between the contact portion and the urging member. In the invention of claim 2, the jig body is provided with a slidable paddle holder, and the paddle holder is slid according to the length of the lead wire to attach the paddle of the lead wire of the magnetic head.

[0011]

Embodiments of the present invention will now be described with reference to the drawings. 1 (a), (b), (c), (d), and (e) are a top view, a side view, a bottom view, and AA of FIG. 1 (a) showing an embodiment of the present invention.
It is a line-of-sight sectional view, and a BB line-of-sight sectional view of FIG.1 (d). In addition,
In FIG. 1, parts corresponding to respective parts of the conventional example shown in FIG. 4 are designated by the same reference numerals, and description thereof will be omitted. Figure 1 (d)
In the figure, 20 is a jig body. The jig body 20 is formed by bending both sides of a slender stainless steel plate in the same direction by 90 degrees, and a suspension mounting portion 21 is formed at the tip thereof. This suspension mount 2
In FIG. 1, reference numeral 22 is a contact member attached to the end of the jig body 20, and as shown in FIG.
And a pressing member 24 is formed on the lower surface thereof, and the right end portion is bent downward to form an abutting portion 25. A substantially rectangular parallelepiped pusher 26 is arranged on the left side of the contact member 22 so as to be movable in the left-right direction, and a finger hook 28 is attached to the upper surface of the pusher 26 by screws 27, 27. A spring 30 is provided on the left side of the pusher 26.
The pusher 26 is provided by the spring 30.
Is urged to the right of the drawing.

When the suspension 1 is attached to the suspension attaching portion 21 thus constructed, first, the finger hook 28 is moved to the left against the biasing force of the spring 30, and then shown in FIG. In this manner, the outer surface of the hollow boss portion of the base plate 2 of the suspension 1 is brought into contact with the contact portion 25 of the contact member 22, and the finger hook 28 is slowly released. As a result, the outer end of the base plate 2 of the base plate 2 is biased by the pusher 26, and the base plate 2 is pushed by the pusher 26.
Is pressed against the contact portion 25 of the contact member 22 and held between them.

Next, as shown in FIG. 1C, a paddle holder 31 is provided at the center of the lower surface of the jig body 20.
It is guided by the inner surface of 0 and is attached so as to be movable in the left-right direction.

2 (a) to 2 (C) are a side view, a bottom view and a sectional view taken along the line CC of FIG. 2 (a) showing the structure of the paddle holder 31, respectively. The paddle holder 31 has a substantially rectangular parallelepiped shape and is made of resin. A hole 32 is formed perpendicularly from the upper surface in the right part of the center.
A magnet 33 is embedded in the unit 2. A ridge 34 is formed on the front edge of the lower surface. In addition, a rectangular parallelepiped hole 35 is formed in the central portion in the left-right direction on the back side of the lower surface, and a plate-like projection 36 is provided upright on the bottom surface of the hole 35.

The paddle holder 31 constructed as described above
Is attached to the lower surface of the jig body 20 by a magnet 33 and is guided to at least one of both side surfaces. The paddle 8 attached to the lead wire 7 of the thin film magnetic head 5
As shown in FIG. 2C, the ridge 34 and the plate ridge 36 are
Sandwiched between. In this case, the plate protrusion 36 functions as a plate spring.

Further, according to the above construction, since the paddle holder 31 is attached to the lower surface of the jig body 20 by the magnet 33, the paddle holder 31 is set at a desired position according to the length of the lead wire 7. can do.

In the above embodiment, the example applied to the thin film magnetic head 5 has been described, but the present jig can also be applied to various types of magnetic heads (for hard disk devices) of other types.

[0018]

As described above, according to the present invention, the abutting portion that abuts the outer peripheral portion of the base plate, and the base plate that is provided at a position facing the abutting portion and urges the base plate toward the abutting portion. Since the urging member is provided, the suspension can be fixed simply by sandwiching the base plate between the abutting part and the urging member, and the workability is very good. It is also excellent in versatility. Further, according to the present invention, since the paddle holder slidably attached to the jig body is provided, there is an advantage that workability in attaching the paddle to the jig is good.

[Brief description of drawings]

1 (a), (b), (c), (d), and (e) are a top view, a side view, and a bottom view showing the configuration of an embodiment of the present invention, and a cross section taken along line AA of (a). It is a BB line-of-sight sectional view of the figure and (d).

2 (a), (b), and (c) are a side view, a bottom view, and a CC line-of-sight cross-sectional view of FIG.

FIG. 3 is an enlarged explanatory diagram of a D portion in FIG.

4 (a) and 4 (b) are a plan view and a side view showing a schematic configuration of a conventional thin film magnetic head inspection apparatus.

FIG. 5 is an explanatory view showing a conventional technique for attaching the suspension 1 to the jig body 6.

FIG. 6 is an explanatory diagram showing a conventional technique for attaching the suspension 1 to the jig body 6.

[Explanation of symbols]

20 ... Jig body, 21 ... Suspension mounting part, 22 ... Abutment member, 25 ... Abutment part, 26 ...
Pusher, 30 ... Spring, 31 ... Paddle holder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoya Nishimura 10-1 Nakazawa-machi, Hamamatsu-shi, Shizuoka Prefecture Yamaha stock company (72) Inventor Takashi Onoda 10-1 Nakazawa-machi, Hamamatsu-shi, Shizuoka Yamaha stock company

Claims (2)

[Claims] 1. A magnetic head inspection jig used for inspecting a magnetic head attached to a front end of a suspension having a base plate attached to a rear end thereof, wherein an abutting portion abutting on an outer peripheral portion of the base plate is provided. An inspecting jig for a magnetic head, comprising: a biasing member that is provided at a position facing the contact portion and that biases the base plate toward the contact portion. 2. A magnetic head inspection jig used for inspecting a magnetic head attached to the front end of a suspension having a base plate attached to the rear end, wherein a plate-like member attached to the front end of a lead wire of the magnetic head. An inspection jig for a magnetic head, which is a paddle holder for temporarily holding a paddle, the paddle holder slidably attached to a jig body.