JPH0240183A - Disk handling chucking mechanism - Google Patents

Abstract

PURPOSE:To perform fitting flexible for a few amount of misregistration by supporting with pressure a disk by supplying a strong pressing force on a pressing roller by the mutual action of a link mechanism and a linear guide, and also, supporting it freely by relaxing the pressing force when the disk is fitted in a spindle. CONSTITUTION:A rotary guide 5 is rotated by the operation of an air cylinder 8a, and is stopped at a certain position, and the pressing rollers 2a-2c directly connected to two linear guides 7-1 and 7-2, respectively, presses the side face of a disk 1 intensely and supports it. At the time of fitting the disk 1 supported with pressure in the spindle, the disk 1 is supported freely by relaxing the pressing force by rotating the rotary guide 5 by a prescribed angle. In such a way, it is possible to fit the disk 1 smoothly in the spindle even when a few amount of misregistration is generated in a handling mechanism.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a handling chuck mechanism for hard disks such as magnetic disks, and more particularly, to a handling chuck mechanism for a spindle that precisely fits into a positioning hole provided at the center of a disk. This invention relates to a mechanism for inserting and inserting a disk without force.

[Background Art] The recording density of hard disks (hereinafter simply referred to as disks), such as magnetic disks and optical disks, has recently become more sophisticated, and high-precision inspections corresponding to this are performed in the manufacture of disks.

A positioning hole is provided in the center of each of these disks, and the disk is inserted into a spindle of an inspection device and rotated by a motor. For this purpose, a handling chuck is used to chuck and transport the disk.

FIG. 4 shows the chuck method of the handling chuck mechanism, in which pressure rollers 2 a + 2 b, 2 c are placed at multiple locations (3111 locations in the figure) on the outer circumferential side of the disk 1.
is placed, and the pressure roller is pulled by an internal force by an appropriate mechanism to press the side surface. After the disk supported by pressure is lowered F and inserted into the spindle 3, the pressure roller is released and raised and retracted, and the disk is rotated and inspected.

[Problem to be solved] In the above-mentioned fitting, the positioning hole and the spindle are manufactured to fit together with high accuracy for the above-mentioned high-precision inspection, and the pressing force of the pressing roller is It is set quite strongly to hold the disc securely and stably inside. On the other hand, there is some play in the mechanism for the pressure roller, and this play causes a positional shift between the positioning hole and the spindle when the disk is inserted and inserted. Therefore, if such misalignment continues, smooth fitting will not be achieved, causing unreasonable curvature of the disk and damaging the positioning hole.
In some cases, the disk may be damaged.

Furthermore, if an abnormality occurs in the insertion and insertion of the disks, inspection of the disks in assembly lines may be stopped, leading to a decrease in production efficiency.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a handling chuck mechanism that can always smoothly insert a disk into a spindle regardless of slight positional deviation. [Means for Solving the Problems] This invention supports a hard disk by pressing it with grooved pressure rollers at a plurality of locations on the outer circumferential side surface, and forms a positioning hole in the center of the disk so that the axial direction is perpendicular (vertical type). Alternatively, it is a handling chuck mechanism that is inserted into a horizontal (horizontal) spindle, and has a rotary guide rotated by an air cylinder, each rotary guide is engaged by a link mechanism, and a spring applies a weak pressing force to the disk. The rotation of the rotary guide by an air cylinder causes the pressure rollers directly connected to the linear guides to move horizontally in opposition to each other.

In the above, depending on the rotational position of the rotary guide, a strong pressing force is generated to press and support the disk, or the strong pressing force is relaxed to a weak pressing force that freely supports the disk, or a pressing force is applied to the disk. release.

The above link mechanism has a cam floor at one end of each of the two arms, the other ends of each arm are pivotally supported on a common shaft, the two arms are biased toward each other by a spring, and the angle between them is fixed by a stopper. One cam floor engages with a stopper provided on the side of the rotary guide to follow the rotation of the rotary guide, and the other cam floor engages with a stopper provided on the side of the rotary guide to follow the rotation of the rotary guide. They are respectively engaged with a pressing stopper that generates a pressing force or a releasing stopper that releases the disc.

Next, a support mechanism is used for a disk in which the disk is supported perpendicularly to a horizontal spindle by a pressure roller. This mechanism is biased by a spring, and when the above-mentioned strong pressing force and weak pressing force are applied to the disk, the disk is pressed upward with the lower side surface to support it, and when the disk is released,
The support is released by a pressure roller provided on the side of the rotary guide.

[Function] In the disk handling chuck mechanism of the present invention with the above configuration, the rotary guide rotates and stops at a certain position by the operation of the air cylinder, and the pressure rollers directly connected to the two linear guides move the disk. Support by pressing firmly on the sides. When inserting a press-supported disk into the spindle, the rotary guide is rotated by a predetermined angle to loosen the pressing force and freely support the disk. Insert smoothly.

The rotary guide is further rotated against the inserted disc to release the pressure.

The press support and release described above are performed by the cam floor of the link mechanism pressing the press stopper and release stopper provided on the linear guide, respectively, by the rotational force of the rotary guide. In addition, in the free support, the cam floor is located between the pressing stopper and the releasing stopper and does not act, and the linear guide remains under a weak pressing force due to the spring provided therein.

Next, when supporting the disk surface vertically, the pressing force of the pressure roller is weak when the disk is supported freely (and the disk falls down due to its own weight), so the support mechanism presses the lower side of the disk upward to support it. Support shall be canceled upon release.

[Embodiment] FIGS. 1(a), 1(b) and 1(C) are a plan view, a vertical sectional view taken along line A-A, and a partially detailed view of an embodiment of a disk handling chuck mechanism according to the present invention.

In Figures (a) and (b), a base board 4 is provided for the disc 1. The base disk is moved between predetermined positions by a separate mechanism to transport the supported disk. A rotary guide 5 made of a cylinder having a diameter slightly larger than the positioning hole 1a at the center of the disk is rotatably supported on the base board by rollers 58 at four locations concentrically with the disk.

Linear guide 7-1 is installed on the base board in the horizontal A-A direction.
．． 7-2 are arranged facing each other, and are movable in the direction of arrow S or S' by rollers 73, respectively. The linear guide 7-1.7-2 and the rotary guide 5 are connected to the link mechanism 6-1. [Engage by f-2. An arm 7b is fixed on the outside of each linear guide, and a pressing roller 2 is attached to this. However, one linear guide 7-1 has 1
The disk is supported at three points by attaching two pressure rollers 2a and 2b to the other 7-2. In addition, each linear guide is biased inwardly by a spring 7C with a weak force, but the linear guide 7-2
Movement to the right in the drawing is restricted by the striker 7d. On the other hand, a drive mechanism 8 is provided below the base board in the drawing. The drive mechanism rotates the rotary guide by a rod 8b of an air cylinder 8a and an arm 8C directly connected to the rod 8b. The base board is also provided with a support mechanism 9 for a vertically mounted disc.

The structure of the link mechanism 6 will be explained in detail with reference to FIG. 1(c). The link mechanism supports arms 6d and 6e on a shaft 6C,
These are urged inward by a spring 6f, and the angle formed by the arm is limited to a certain angle by a stopper 6g. The cam floor 6a at the tip of each arm is held between two stoppers 5b provided on the side of the rotary guide 5, and the cam floor 6b is held between a pressure stopper 7e and a release stopper 7f provided inside the linear guide 7 at appropriate intervals. placed in between.

FIGS. 2(a) and 2(b) are explanatory views of the operation of the above structure with respect to the disk. In Figure (a), when the rotary guide 5 rotates in the direction of arrow CI, the arm 6d rotates together with the cam floor 6a, and the stopper 6 in contact with the arm 6d rotates.
The cam floor 6b of the arm 8e pushed by the arm 8e presses the release stopper 7f to the right to move the linear guide 7-1, and the disk is released from the pressing roller. Next, in Figure (b), the rotary guide is
When the disk rotates in direction 2, the cam floor 6b presses the pressure stopper 7e to the left, and the pressure roller 2a presses the disk. In this case, the pressing force is the sum of the two springs 6f and 70, and is strong. The following operations are similarly performed for the pressing roller on the left side of the figure. However, the urging force of each spring in both is made to have a magnitude relationship in order to stabilize the pressing operation. That is, the springs 6f and 7c on the left side are each made stronger than the corresponding springs on the right side. As a result, the left linear guide 7-2 stops at the stopper 7d during pressing, and the disk is stably pressed.

The above is the operation of releasing and pressing the disk, but when inserting the disk into the spindle, there is a misalignment between the positioning hole and the spindle due to play in the handling mechanism. As shown by the dotted line, the free support state is between the released and pressed states. In free support, the cam floor 6b is located between the pressing stopper 7e and the release stopper 7f and does not act on the linear guide 7, and the linear guide presses the disk with the weak force of the spring 7c to freely support it.

FIG. 3 is an explanatory diagram of the operation of the support mechanism 9 for the disk mounted perpendicularly on the horizontal spindle, in which the arm 9b of the shape supported by the shaft 9C is biased by the spring 9d, and the rotary guide 5 is moved by the arrow C1. When the rotary guide rotates in the direction of , that is, when it is pressed or freely supported, the supporter 9a at the tip presses the lower end of the disk 1 upward.When the rotary guide rotates in the opposite direction and the disk is released, the supporter 9a attached to this presses the lower end of the disk 1 upward. The pressing roller 50 pressed against one end of the arm 9b causes the supporter 9a to descend and release.

The subsequent release or pressing operation is performed by supplying air to the right or left side of the air cylinder 8a as shown in the figure, and the stopper 8d in FIG. 1(a) acts to limit the pressing force to a certain limit. Further, when the piston 8e is freely supported, air is not supplied to both sides, and the piston 8e is located in the middle of the cylinder.

As is clear from the explanation in ``Effects of the Invention'' 2, in the disk handling chuck mechanism according to the present invention, a strong pressing force is applied to the pressing roller to press and support the disk through the interaction of the link mechanism and the linear guide. Also,
By relaxing the pressing force and freely supporting the spindle when fitting it into the spindle, flexible fitting against misalignment between the positioning hole and the spindle, in other words, smooth and highly accurate fitting, is achieved, which is better than the conventional method. This completely eliminates the risk of damage to the positioning hole or damage to the disk, such as in a handling chuck mechanism. In addition, for disks that are installed perpendicularly to the horizontal spindle, it supports the disk at the bottom so that it can be stably inserted and installed, and it is a great tool that contributes to the handling mechanism of hard disk inspection equipment. There is.

[Brief explanation of the drawing]

FIGS. 1(a), (b), and (C) are structural diagrams of an embodiment of the disk handling chuck mechanism according to the present invention, and FIGS. 2(a) and (b) are pressing operations relative to FIG. 1. FIG. 3 is an explanatory diagram of the support mechanism of FIG. 1(a), and FIG. 4 is an explanatory diagram of a conventional disc handling chuck mechanism using a pressing roller. 1...hard disk, la...positioning hole, 2
...Press roller 3...Spindle, 4...
・Base board, 5...Rotary guide, 5
a-roller, 5 b, 8 g, 7 d,
8 d・stopper, 5c...press roller, 6・
...Link mechanism, 8a, 6b...Cam floor, 6C.
...Axis, E3d, C3e, 7b, 8b, 8c =-arm, E3 f + 7c...Spring, 7...
Linear guide, 7a...Roller 7e...
Pressing stopper, 7f... Release stopper, 8... Drive mechanism, 8a... Air cylinder, 9... Support mechanism. Figure 2 (a) (b) Figure 2

Claims (3)

[Claims] (1) A hard disk is pressed and supported by grooved pressure rollers at multiple locations on the outer peripheral side surface, and the positioning hole in the center of the disk is attached to a spindle whose axis direction is vertical (vertical type) or horizontal (horizontal type). In the handling chuck for the disc to be inserted, the rotary guide rotated by an air cylinder and the pressing roller that is engaged with the rotary guide by a link mechanism and applied with a spring to apply a weak pressing force to the disc are directly connected to the rotary guide. It is composed of two linear guides that are moved horizontally in opposition to each other by the rotation of the rotary guide by an air cylinder, and generates a strong pressing force that presses and supports the disk in accordance with the rotational position of the rotary guide. A disk handling chuck mechanism characterized in that the strong pressing force is reduced to the weak pressing force that freely supports the disk, or the pressing force on the disk is released. (2) In the above, one end of each has a cam floor, the other end of each is pivotally supported by a common shaft, biased toward each other by a spring, and the angle between them is limited to a certain angle by a stopper. One of the cam floors engages with a stopper provided on the side of the rotary guide to follow the rotation of the rotary guide, and the other cam floor engages with a stopper provided on the side of the rotary guide and follows the rotation of the rotary guide, and the other cam floor is attached to the linear guide at an appropriate interval. 2. The disc handling chuck mechanism according to claim 1, wherein said link mechanism engages with a pressing stopper that generates said strong pressing force, or a release stopper that releases said disc, respectively. (3) The disk whose disk surface is vertically supported by the pressure roller with respect to the horizontal spindle is biased by a spring, and when the disk is freely supported, the lower side surface of the disk The disk and handling chuck according to claim 1 or 2, further comprising a support mechanism that presses upward to support the disk, and releases the support by a pressing roller provided on a side surface of the rotary guide when the disk is released. mechanism.