JPH03216876A - Method and jig for positioning magnetic head - Google Patents

Abstract

PURPOSE:To efficiently position a magnetic head with a simple jig by providing a reference projecting part with which the reference hole of a gimbals is engaged and an arm part which has magnetic head positioning contacts. CONSTITUTION:A magnetic head positioning jig 20 is provided with a plane part 21, a reference projecting part 22 which projects to the lower face of the plane part and is fitted to the reference hole of a gimbals 1, an arm part 23 extended downward from the lower face of the center of the plane part, and magnetic head positioning contacts 25A to 25C formed as projecting parts on two inside faces orthogonal to each other of an L-shaped corner part 24 formed under the arm part 23 positioning contacts 25A to 25C of the arm part 23 extended into a slider 12 of a floppy head 10 are brought into contact with the side face of the core 10 through the rectangular window part of the gimbals 1 to attach and position the magnetic head. Thus, the magnetic head is efficiently positioned with the simple jig.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for positioning a magnetic head attached to a gimbal, such as a floppy head, and a jig used in the method.

(Prior Art) A gimbal 1 and a floppy head 10 as a magnetic head attached thereto will be explained with reference to FIGS. 7 to 9. In these figures, the gimbal 1 is a thin plate of elastic metal such as stainless steel or phosphor bronze, and has punched holes 2 and 3 to prevent shocks and vibrations from the peripheral support from being transmitted to the central part where the magnetic head is housed. It has become. Attachment holes 4 are formed at the four corners of the peripheral support portion. A rectangular window portion 5 is formed in the center of the gimbal 1.

On the other hand, a floppy head 10 as a magnetic head has a slider 12 fixedly integrated with a core 11 having a winding (not shown), and as shown in FIG. A recording/reproducing gap Gr on the moving surface and an erasing gap Ge located on both sides thereof
It has

Note that the arrow X in FIG. 9 indicates the running direction of the floppy disk.

Such attachment of the floppy head 10 to the gimbal 1 is carried out by fixing the floppy head 10 to the bottom surface of the gimbal 1 with adhesive or the like, but conventionally, the positioning at that time has been done using a TV microscope. I was going there. That is, the sliding surface of the floppy head 10 was magnified with a television microscope, and the floppy head 10 was positioned at a predetermined position while viewing the gap portion and the core edge portion on the screen.

(Problems to be Solved by the Invention) Conventional magnetic head positioning methods require expensive equipment such as a television microscope, require a large number of man-hours for positioning work, and have the disadvantage of poor work efficiency.

In view of the above points, the present invention does not require expensive equipment,
An object of the present invention is to provide a method for positioning a magnetic head that enables efficient positioning of a magnetic head with a simple jig, and a jig for use in the method.

(Means for Solving the Problems) In order to achieve the above object, the magnetic head positioning method of the present invention provides a magnetic head that fits or engages with a reference hole or a reference edge of the gimbal when the magnetic head is attached to the gimbal. Using a jig equipped with a reference protrusion and an arm having a magnetic head positioning contact, the reference protrusion is fitted or engaged with the reference hole or reference edge, and the positioning contact is connected to the magnetic head. The magnetic head is fixed to the gimbal by coming into contact with the side surface of the core.

Further, the magnetic head positioning jig of the present invention includes a reference convex portion that fits or engages with a reference hole or a reference edge of a gimbal to which the magnetic head is attached, and an arm portion having a contact point for positioning the magnetic head. It is said that

In the present invention, the core of the magnetic head can be positioned with respect to the reference hole or reference edge of the gimbal using a simple jig, and the gap position and track center (center line 2 in FIG. 9) can be positioned. .

Additionally, there is no need for expensive positioning equipment such as a television microscope, and positioning work is extremely easy (the installation time is approximately 1/3 compared to conventional methods). (Example) Hereinafter, an example of a magnetic head positioning method and jig according to the present invention will be described with reference to the drawings.

An embodiment of the present invention will be described with reference to FIGS. 1 to 4. In these figures, the magnetic head positioning jig 20
consists of a flat plate part 21, a reference convex part 22 that protrudes from the lower surface of the flat plate so as to fit into the reference hole (mounting hole) of the jinhal 1 shown in FIG. Arm part 2
3, and magnetic head positioning contacts 25A, 2 formed as convex portions on two orthogonal inner surfaces of the L-shaped corner portion 24 formed at the lower part of the arm portion 23 as shown in FIG.
5B and 25C. That is, contacts 25A and 25B are formed on the long side of the L-shaped corner portion 24, and a contact 25C is formed on the short side.

To attach and position the floppy head lO as a magnetic head to the gimbal 1, as shown in FIG. The reference protrusion 22 is fitted into the mounting hole 4 as a reference 6, and the floppy head 10 is provided on the lower surface of the gimbal 1 with adhesive as shown in FIG. This is done by bringing the positioning contacts 25A, 25B, and 25C of the arm 23 extending into the slider 12 of the head 10 into contact with the side surface of the core 10. That is, as shown in FIG. 4, inside the slider 12 of the floppy head 10, the long-faced contacts 25A and 25B of the L-shaped corner part 24 are brought into contact with one side of the core 11 of the floppy head 10.
The contact point 25C is brought into contact with the other orthogonal side surface of the core 11 for positioning. As a result, the gaps Grw and Ge of the floppy head sliding surface and the track center Z shown in Fig. 9 are positioned with respect to the gimbal reference line (line connecting the mounting hole centers or one side edge of the gimbal, etc.). . Then, while the floppy head 10 is in a fixed state, the adhesive is hardened to fix the floppy head 10 to the gimbal 1.

FIGS. 5 and 6 show other embodiments of the magnetic head positioning jig according to the present invention. In this case, instead of the reference protrusion that fits into the mounting hole of the gimbal 1, an L-shaped reference protrusion 22A that engages with the reference edge of the gimbal 1 is integrally formed on the flat plate part 21. The rest is the same as in the previous embodiment.

(Effects of the Invention) As described above, according to the present invention, when positioning and attaching a magnetic head to a gimbal, the positioning work can be performed efficiently with a simple jig. Furthermore, an expensive positioning device such as a television microscope is not required, making it economical.

[Brief explanation of drawings]

FIG. 1 is a bottom view showing a jig in an embodiment of the present invention;
Fig. 2 is an exploded front view showing the process of superimposing the jig on the gimbal, Fig. 3 is a front sectional view showing the positioning process, Fig. 4 is an enlarged plan sectional view of the main parts, and Fig. 5 is an exploded front view showing the process of superimposing the jig on the gimbal. A bottom view of the jig in the example, FIG. 6 is an exploded front view showing the process of overlapping the jig of FIG. 5 on the gimbal, and FIG. 7 is a plan view showing the gimbal and the floppy head fixed to it.
FIG. 8 is a front view of the same, and FIG. 9 is an enlarged view showing the sliding surface of the floppy head that faces the magnetic recording medium. 1.・Cymbal, 5... Square window, 10... Floppy head, 11... Core, 12... Slider, 2
0... Jig, 21... Flat plate part, 22, 22A... ．．
Reference convex portion, 23... Arm portion, 25A. 25B, 25C・
...Positioning contact, Grw...recording/reproduction gap,
Ge...Erasure gap

Claims (2)

[Claims] (1) When attaching a magnetic head to a gimbal, use a jig equipped with a reference protrusion that fits into or engages with a reference hole or reference edge of the gimbal, and an arm having a contact point for positioning the magnetic head. The magnetic head is fixed to the gimbal by fitting or engaging the protrusion into the reference hole or reference edge and bringing the positioning contact into contact with the side surface of the core of the magnetic head. Positioning method. (2) A magnetic head positioning jig characterized by comprising a reference convex portion that fits or engages with a reference hole or reference edge of a gimbal to which the magnetic head is attached, and an arm portion having a contact point for positioning the magnetic head. .