JPS6316457A - Hda clamping device - Google Patents

Abstract

PURPOSE:To position and fix and HDA (head disk assembly) at a position in the vertical direction where a reference plane being abutted against an abut ting member by pressing the reference plane for attachment of cover to the abutting member from the lower side via a pressing means. CONSTITUTION:A support member 5 is moved to the left side on a rail 6 by an air cylinder 7 and an HDA9 is put on a mounting member 3. Then the member 5 is moved right by the cylinder 7 until the member 5 abuts a stopper. As a result, the HDA9 is automatically positioned and fixed at a position in the horizontal direction where the member 5 abuts against the stopper. Then the member 3 is moved upward by an air cylinder 4. Thus a reference plane 10 set on the upper surface side of the HDA9 is pressed to a reference block 2. Then the HDA9 is automatically positioned and fixed at a position in the vertical direction where the plane 10 being abutted against the block 2.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a servo track writer that targets a magnetic disk in an HDA (head disk assembly), which positions and fixes the HDA during loading. Relating to a device for

[Conventional technology]

In a servo track writer that writes to a magnetic disk within an HDA, when writing, it is necessary to position the HDA at a predetermined position with high precision and fix it at that position. Among these positioning and fixing methods, the conventional method for positioning and fixing the HDA in the vertical direction (direction perpendicular to the disk surface of the magnetic disk) is to machine a reference surface specifically for positioning on the bottom surface of the HDA case. With the HDA placed on the contact member provided on the servo track writer side so that the reference surface comes into contact with the contact member, the reference surface is pressed against the member from above. The method was adopted.

[Problem that the invention seeks to solve]

However, machining a reference surface dedicated to positioning on the HDA as in the above method is expensive (unit cost is high) - Although there is no problem in terms of cost for IDA, it is HDA with a low valence of 11 has the problem of being unfavorable in terms of cost.Furthermore, pressing the HDA positioning reference surface from above as in the above method does not allow the magnetic disk and access structure to be placed on the top surface. Due to the exposed structure of HDA,
There is a problem in that pressing requires ingenuity in the method, and pressing results in complicated means. Furthermore, the above method has the problem that positioning and fixing must be performed manually, which is inefficient.

This invention has been made to solve the above-mentioned problems.

[Means for solving problems]

The HDA clamping device according to the present invention includes a contacting member for contacting a reference surface for a cover mounting provided on the upper surface of an HDA (head disk assembly), and a contacting member located below the contacting member. (a) Pressing means for pressing the reference surface of the IDA against the abutting member from below.

[Effect]

In the pressing, the reference surface for attaching the cover is pressed against the abutting member from below, thereby positioning and fixing the HDA at a position in the vertical direction where the reference surface abuts the member.

In this way, in this invention, positioning can be performed using the reference surface for cover attachment without machining the M single surface dedicated for positioning.
Although the cover is fixed, the reference surface for attaching the cover is an existing one, so according to the present invention, positioning can be performed without causing any cost problems.

Fixation takes place.

Further, in this invention, the reference surface of the HDA is pressed from below, but unlike the upper surface, there is no disk-type recording medium on the lower surface of the HDA, so the method of pressing is simple, and pressing is a problem of complicating the means. does not occur. Furthermore, when pressing from below in this manner, it is easy to automate the pressing, and therefore it is easy to automate positioning and fixing.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the IDA clamping device according to the present invention. This HDA clamp device is a servo track writer 1 that writes to a magnetic disk in an HDA.
This is adopted in the standard block 2.
HOA@mounting member 3. Air cylinder 4 for moving the member 3 in the vertical direction. A support member 5° for supporting the air cylinder 4 includes an air cylinder 7 for moving the support member 5 (and thus also the air cylinder 4 and mounting member 3 thereon) horizontally along the rail 6.

This HDA clamp device is shown in FIG. 2 when viewed from above.

The reference block 2 is intended to be brought into contact with a reference surface 10 for mounting an existing cover on the upper surface of the HDA 9 as shown in FIG. The relationship between the support member 5 and the air cylinder 7 is shown in detail in FIG. is provided. The positional relationship between the stopper 8 and the reference block 2 is set such that the HDA mounted on the mounting member 3 is located below the reference block 2 when the support member 5 is in contact with the stopper 8. ing. As shown in FIG. 5, the mounting member 3 has a projection 11 on its upper surface for insertion into an existing groove (not shown) on the lower surface of the HDA 9. HDA9 is
By inserting this protrusion 11 into the processing groove and placing it on the mounting member 3, the member 3 can always be placed at a constant position.

This HDA clamp device can be divided into a portion that serves to position and fix the HDA in the horizontal direction, and a portion that serves to position and fix the HDA that has been positioned and fixed in the horizontal direction in the vertical direction. That is, the support member 5. The rail 6 and the air cylinder 7 serve to position and fix the HDA in the horizontal direction, and the reference block 2. Mounting member 3. The air cylinder 4 serves to position and fix the HDA in the vertical direction.

The positioning and fixing operations of HDA by this HDA clamping device are as follows, focusing on J as the above-mentioned role.

First, as shown in FIG. 6, the support member 5 is moved to a leftward position on the rail 6 by the air cylinder 7, and in this state, the HDA 9 is placed on the mounting member 3. Next, the support member 5 is moved to the right by the air cylinder 7 to a position where it comes into contact with the stopper 8.

As a result, as shown in FIG. 7, the HDA 9 is automatically positioned and fixed at a position in the horizontal direction where the support member 5 comes into contact with the stopper 8.

Subsequently, the mounting member 3 is moved upward by the air cylinder 4 from the state shown in FIG. As a result, as shown in FIG. 8, the reference plane J10 on the top surface of the HDA9 is aligned with the reference block 2
, the HDA 9 is automatically positioned and fixed at a position in the vertical direction where the reference plane 10 and the reference block 2 are in contact with each other. In the servo track writer 1, a servo pattern is written by the servo head 13 onto the magnetic disk 12 in the HDA 9 positioned and fixed in this manner.

In this embodiment, the HDA is placed on a mounting member and the member is moved upward by an air cylinder to attach the cover on the top surface of the HDA by pressing the reference surface against the reference block. The reference surface may be pressed against the reference block by any appropriate means.

[Effects of the Invention] As described above, according to the HDA clamp device according to the present invention, the HDA can be positioned and fixed in the vertical direction at low cost and using simple means, and the positioning and fixing can be automated. Qin the effect of being easy.

[Brief explanation of drawings]

1 is a side view showing an embodiment of the HDA clamp device according to the present invention, FIG. 2 is a top view of the HDA clamp device of FIG. 1, FIG. 3 is a top view showing the HDA, and FIG. 4 is a top view of the HDA clamp device of FIG. 1 is a partially detailed view of the HDA clamp 'Jt device in FIG.
) is a top view, (b) is a side view, and Figure 5 is the HDA in Figure 1.
FIG. 3 is a partially detailed view of the clamping device, (a) being a side view;
(b) is a view from arrow A in (a); Figures 6 to 8 are side views showing the HDA positioning and fixing operations by the HDA clamp device in Figure 1; Fig. 7 shows the HDA placed on a support member, Fig. 7 shows the HDA positioned and fixed in the horizontal direction, and Fig. 8 shows the HDA positioned and fixed in the vertical direction.1... Servo track writer, 2... Reference block, 3... Mounting member, 4, 7... Air cylinder, 5
...Supporting member, 6...Rail, 8...Stopper,
9...HDA. DESCRIPTION OF SYMBOLS 10...Reference surface, 11...Protrusion, 12...Magnetic disk, 13...Servo head Fig. 4 Fig. 5

Claims (1)

[Claims] 1. A contacting member for contacting a reference surface for attaching a cover provided on the upper surface of an HDA (head disk assembly); and the HDA located below the contacting member. a pressing means for pressing the reference surface of the holder against the abutting member from below; 2. The HDA clamp device according to claim 1, wherein the pressing means comprises an air cylinder that vertically moves the mounting member on which the HDA is placed.