JPH07106775A - Hdd fitting system - Google Patents

Abstract

PURPOSE:To provide an HDD (hard disk drive) fitting system which is used for fitting an HDD in a controller unit, such as the numerical controller, etc., and can prevent vibrations generated by the main body of the HDD as well as vibrations from the outside. CONSTITUTION:An HDD unit 8 is constituted of an HDD main body 81 in which a disk, head, driving device, etc., are housed, weight 82, fixture 83, and rubber vibration isolators 84. The weight 82 is a platy member made of a metal, etc., and fitted to, for example, the lower surface of the main body 81 with screws, etc. The main body 81 fitted with the weight 82 is fitted to the fixture 83 through the rubber vibration isolators 84a, 84b, 84c, and 84d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an HDD (hard disk drive) in a control unit such as a numerical control unit.
The present invention relates to an HDD mounting method for mounting an HDD, and more particularly to an HDD mounting method having a vibration isolation structure.

[0002]

2. Description of the Related Art Conventionally, HDDs (hard disk drives) used in personal computers, workstations, etc.
Is fixed in the apparatus main body or the HDD case. A desk-top device such as a personal computer does not need to be subjected to any special treatment because it is not chronically subjected to large vibrations from the outside. However, since the numerical control device, the robot controller, and the like are installed close to the machine tool and the robot, they are easily subject to large vibrations. Therefore,
The HDD built in each device is always in a state of being greatly vibrated. When the HDD receives a large vibration, the positioning accuracy of the head deteriorates, so that the data cannot be read accurately.

For this reason, conventionally, in an HDD mounted on a numerical control device or the like, rubber for vibration isolation is attached between the fixing member and the HDD body to reduce the influence of external vibration.

[0004]

However, in the mounting method using the rubber for vibration proof as described above, the vibration from the outside can be prevented, but the HDD main body is caused by the rotation of the disk or the movement of the head. With respect to the vibration, there is a problem that the holding force is small and the vibration is more likely to be received.

The present invention has been made in view of the above circumstances, and an HDD mounted in a control device unit.
HDD that can surely prevent vibration from inside and outside
It is intended to provide a mounting method of.

[0006]

In order to solve the above problems, the present invention provides a method of mounting an HDD (hard disk drive) in a control device unit such as a numerical control device, in which the above-mentioned control is performed. A fixture for attaching the HDD to a part of the device unit, a vibration-proof rubber for attaching the HDD to the fixture, and a weight member attached to the HDD body case. An HDD mounting method is provided.

[0007]

A fixing tool for mounting the HDD is attached to a part of the control device unit, and the HDD is attached to the fixing tool via a vibration-proof rubber. A weight member is attached to the HDD body case. Since the weight member increases the weight of the HDD body, the vibration generated by the HDD is prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows the HDD (hard disk of this embodiment).
It is an external view of a CNC unit in which a drive is mounted. The CNC unit 1 is formed by inserting a power supply unit 3 and a printed board unit 4 into a rack 2. Here, an example in which one printed board unit 4 is shown is shown, but a plurality of printed board units 4 may be provided depending on the scale of the system.

FIG. 3 is an external view showing the structure of the printed board unit 4. The printed board unit 4 mainly includes a printed board 7 and a face plate 5 on the front surface. A large number of connectors 6 and circuit components 7a are mounted on the printed circuit board 7. Connector 6
Are connector openings 5a and 5b of the face plate 5.
It is exposed to the front surface side through the and is connected to an external device through the cable. Also, on the printed circuit board 7,
The HDD unit 8 is attached.

FIG. 1 is a diagram for explaining a mounting method of the HDD unit 8. The HDD unit 8 is mainly an HDD body 8 in which a disk, a head, a drive device, etc. are housed.
1, a weight 82, a fixture 83, and a vibration-proof rubber 84. The weight 82 is a plate-shaped member formed of metal or the like, and is attached to the lower surface of the HDD main body 81 with screws or the like.

The fixture 83 has, for example, both ends of a plate-shaped member raised, and has attachment parts 831 and 83, respectively.
2 is formed. In the mounting parts 831 and 832,
Mounting holes 831a and 831b and mounting holes 832a and 832b are formed, respectively. The fixing portion 83 having such a shape is attached to the printed circuit board 7 with screws or the like.

The fixed portion 83 has a vibration-proof rubber 84a, 84
The HDD main body 81 to which the weight 82 is attached is attached via b, 84c, and 84d. That is, the anti-vibration rubbers 84a, 84b, 84c, 84d are inserted into the mounting holes 832a, 832b, 832a, 832b, respectively, and fixed by a known technique such as adhesion. H at the tip
The DD body 81 is fixed.

Thus, the vibration-proof rubbers 84a, 84b, 8
By attaching the HDD main body 81 to the fixture 83 via 4c and 84d, it is possible to prevent the influence of external vibration as in the conventional case. Also, by attaching a weight 82 to the HDD body 81 to increase the overall weight,
HDD body 81 accompanying movement of head and rotation of disk
Vibration can be prevented.

FIG. 4 is a plan view showing a mounting state of the HDD unit 8. The HDD main body 81 is attached to the fixed portion 83 and connected to the connector 85 via the cable 86. At this time, the elastic force acts on the cable 86 as well as the anti-vibration rubber 84a. For this reason, unless the material of the anti-vibration rubber 84a or the like, the mounting method, or the like is devised, the balance of the vibration received from the outside of the HDD main body 81 is biased. That is, when the elastic force of the cable 86 is applied, the portion of the HDD main body 81 on the cable 86 side is more likely to resonate with high-frequency vibration than on the opposite side.

In order to prevent this, the balance of the center of gravity of the weight 82 is adjusted in this embodiment. FIG. 5 is a sectional view taken along the line AA of FIG. As shown in the figure, the weight 82 is composed of a large weight 82a serving as a base and a small weight 82b for adjusting the position of the center of gravity. Weights 82a and 82b
Are both attached to the HDD body 81 by screws or the like. The small weight 82b is attached to the cable 86 side with respect to the center position of the HDD body 81. This allows the center of gravity of the entire weight 82 to be placed on the cable 86 side. Therefore, the vibration of the HDD main body 81 can be balanced.

In this embodiment, a member made of metal or the like is used as the weight 82, but necessary parts or the like on the printed circuit board 7 may be used.

[0017]

As described above, according to the present invention, the HDD main body case is attached to the inside of the control device unit through the anti-vibration rubber, and the weight member is attached to the HDD main body case. It is possible to prevent the vibration of the HDD main body and the vibration generated by the HDD main body due to the increase in the weight of the HDD main body.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a method of mounting an HDD unit.

FIG. 2 is an external view of a CNC unit in which an HDD (hard disk. Drive) of this embodiment is mounted.

FIG. 3 is an external view showing a configuration of a printed board unit.

FIG. 4 is a plan view showing a mounting state of an HDD unit.

5 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 CNC Unit 2 Rack 3 Power Supply Unit 4 Printed Circuit Board Unit 7 Printed Circuit Board 8 HDD Unit 81 HDD Main Body 82 Weight 83 Fixing Tool 84 Anti-vibration Rubber

Claims (5)

[Claims] 1. A mounting method of an HDD (Hard Disk Drive) for mounting a HDD (hard disk drive) in a control device unit such as a numerical control device, wherein a fixture for mounting the HDD in a part of the control device unit. And a vibration-proof rubber for attaching the HDD to the fixture, and a weight member attached to the HDD body case. 2. The HDD mounting method according to claim 1, wherein the weight member is mounted with its center of gravity adjusted according to the distribution of vibration received by the HDD. 3. The position of the center of gravity of the weight member is the HDD.
3. The HDD mounting method according to claim 2, wherein the HDD mounting method is adjusted so that the HDD is positioned at a portion where the vibration of the HDD is large. 4. The HDD mounting method according to claim 2, wherein the position of the center of gravity of the weight member is adjusted so as to be located at a portion where the elastic force of the anti-vibration rubber is large. 5. The HDD mounting method according to claim 2, wherein the HDD is mounted on a printed circuit board of a printed circuit board unit.