JPH10154368A - Disk chucking mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chucking mechanism capable of changing the interval of rollers for chucking a disk and chucking many disks having different sizes with prescribed passing force. SOLUTION: This mechanism is provided with a base plate B at right angle to the surface of a disk 1, a first and a second rods 42, 43 movable forwards and backwards to the disk 1 along the plate, a first block moving along the base plate B parallel with the surface of the disk 1, a first roller 31a provided on the block, a second block moving forward and backward to the first roller 31a and the disk 1 according to the movement back and forth of the second rod 43, a second roller 31b provided on the second block, a roller position setting mechanism fixed on the base plate B for locating the first roller 31a on the position complied with the size of the disk 1 by moving the first block along the base plate B by moving the first rod 42 back and forth to the disk 1 and a moving mechanism for moving the first and the second rods 42, 43 back and forth to the disk 1 and the disk 1 is chucked by the first and second rollers 31a, 31b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk chucking mechanism, and more particularly, it is possible to change the distance between rollers for chucking disks and to chuck many disks of different sizes with a predetermined pressing force. The present invention relates to a simple disk chuck mechanism.

[0002]

2. Description of the Related Art A disk serving as a medium for recording information such as a magnetic disk or an optical disk or a substrate disk thereof has a center hole as an opening in the center, and the disk is connected to a spindle through the center hole. It is mounted and rotated. This type of disk is inspected for surface defects and electrical performance as a recording medium by an inspection device. In the inspection, the disks are usually chucked one by one by a disk chuck mechanism from a cassette containing a plurality of disks, and the disks are taken out and loaded into an inspection device. The loaded disk is mounted on a spindle of an inspection device, and is driven to rotate to inspect the disk. When the inspection of the disk is completed, the disk is unloaded from the inspection device and stored again in the original cassette or another cassette.

FIGS. 4 and 5 show an example of a magnetic disk (hereinafter referred to as a disk) stored in a cassette and a disk chuck mechanism for taking out a disk from the magnetic disk. In FIG. 4, each disk 1 is accommodated in a box-shaped cassette 2 whose upper part is opened, and a part of its outer periphery is exposed to the upper part. For this reason, a method of chucking two locations, an outer peripheral edge 1a of the disc 1 located above the cassette 2 and an inner peripheral edge 1b of the disc 1 located above the center hole is adopted. The disk 1 whose inner and outer circumferences are chucked is taken out from the opened upper part of the cassette 2. FIG. 5 shows the disk chuck mechanism. FIG.
1A is a schematic side view showing an internal state, in which a disc chuck mechanism (hereinafter, chuck mechanism) 3 presses a pressing roller 31a of an outer peripheral edge 1a having a V-shaped groove and an inner peripheral edge 1b having a V-shaped groove. It comprises rollers 31b and air cylinders 32a and 32b for driving these, respectively. Note that the chuck mechanism 3 is attached to a hand RH provided on the distal end side of the handling robot.

First, the chuck mechanism 3 drives the air cylinders 32a and 32b to extend the respective piston rods to increase the distance between the pressing rollers 31a and 31b. This is the state of the dotted line in FIG. In this state, as shown by a dotted line in FIG. 5B, the roller 31b is inserted into the center hole by the hand RH so that the V-groove corresponds to the inner periphery of the disk, and the roller 31a corresponds to the outer periphery of the disk. Position the V-groove. Next, the chuck mechanism 3 drives the air cylinders 32a and 32b in the opposite direction to contract the respective piston rods, thereby reducing the distance between the rollers. As a result, the disk 1 is chucked by pressing the inner peripheral edge 1b and the outer peripheral edge 1a into the respective V-grooves of the rollers 31a, 31b.

The chuck mechanism 3 has a built-in coil spring in each of the air cylinders 32a and 32b, and a roller for chucking or releasing the chuck is moved by the urging force of the coil spring. In this case,
Air can be introduced into the cylinder either when chucking the disk or when releasing the chuck. Also, in the drawing, the outer peripheral edge 1a
The number of the rollers 31a for chucking is one, but usually the rollers 31a for chucking by pressing the outer peripheral edge 1a are used.
As for a, two discs provided at a predetermined interval on the outer peripheral side of the disc 1 are used. When the disk is chucked, the two rollers 31a and 31b are moved closer to each other. This is because the disc is chucked by applying pressure to the inner and outer circumferences of the disc with a predetermined pressing force.

[0006]

Recently, the size of a disk has been variously varied from 5.25 inches, 3.5 inches, 3.3 inches, 2.5 inches, 2.0 inches, and 1.8 inches. There is something. On the other hand, in the chuck mechanism 3, the interval between the rollers 31a and 31b is limited, and the chuck mechanism 3 is used individually for a specific disk size. Therefore, several sets corresponding to each size are prepared as the chuck mechanism 3 and are replaced as needed. However, the exchange takes time and labor and is not efficient.
On the other hand, there is a demand for a chuck mechanism that can be used in common for disks of various sizes without requiring replacement and manual work.

However, in the above structure, the rollers 3
If the interval between 1a and 31b is set to be large in advance, and both rollers or one of the rollers is moved to a small interval, the strokes of the rollers differ when chucking. This makes it difficult to chuck the disk with the pressing force applied to the outer and inner peripheral edges of the disk within a predetermined range. In this case, when the roller interval is adjusted to a large size,
Chuck mistakes are likely to occur in a small-sized disk. Conversely, if the roller spacing is adjusted to a small-sized disk, the roller spacing cannot be secured for a large-sized disk. An object of the present invention is to solve such a problem of the related art, and can change a distance between rollers for chucking a disk,
An object of the present invention is to provide a chuck mechanism capable of chucking many disks having different sizes with a predetermined pressing force.

[0008]

The chuck mechanism according to the present invention is characterized in that the outer peripheral edge and the inner peripheral edge of the disc have a first edge.
A disc chuck mechanism for pressing the disc and the second roller to chuck the disc,
A base plate disposed substantially at right angles to the surface of the disk, and first and second base plates provided at a predetermined interval and advanced with respect to the disk along the base plate
A first block moving substantially parallel to the surface of the disk and along the base plate; a first roller provided on the first block; and a second rod A second block that advances and retreats with respect to the first roller and the disk in accordance with the advance and retreat of the first roller, the second roller provided in the second block, and the first block fixed to the base plate. A roller position setting mechanism for moving the first block along the base plate by moving a rod with respect to the disk to position the first roller at a position corresponding to the size of the disk; And a reciprocating mechanism for reciprocating the second rod with respect to the disk.

[0009]

As described above, according to the present invention, the first block which moves in the direction perpendicular to the disk to be chucked is provided, and the first rod is advanced and retracted by the roller position setting mechanism. Accordingly, the first block is moved in a direction away from or approaching the outer peripheral side of the disk. Thus, the distance between the first and second rollers is set to a chuck width suitable for the size of the disk.
Therefore, in a state where the distance between the first roller and the second roller is set according to the size of the disk by the roller position setting mechanism, the chuck mechanism is moved by the robot arm to adjust the first roller to the size of the disk. If it is positioned facing the outer periphery of the
Can be positioned near the inner peripheral edge that hits the edge of the center hole of the disk in the retracted state.

In this state, if the first and second rods are simultaneously advanced or retracted by the advance / retreat mechanism, the first block descends to the outer peripheral side of the disk and the first roller is moved to the outer peripheral edge of the disk. At the same time, pressurizes the outer peripheral edge, and at the same time, the second block is rotated or moved obliquely with respect to the first roller and the disk so that the second roller is moved to the inner peripheral edge of the disk. The inner peripheral edge is pressed by being protruded to the side and pressed against the inner peripheral edge. This allows
The disk is reliably chucked between the first roller and the second roller by the amount of movement of the roller determined by the advance / retreat distance by the advance / retreat mechanism and the predetermined pressing force without being affected by the size of the disk. You. As described above, according to the present invention, the width of the roller can be set according to the size of the disk, and the roller that presses the outer peripheral edge side and the roller that presses the inner peripheral edge side even when the roller width is changed are both used. At the same time, the disc can be chucked by applying pressure to the inner and outer circumferences of the disc with a predetermined pressing force.

[0011]

In FIG. 1, a chuck mechanism 4 includes an air cylinder 41 for pressing, a connecting rod 44, and a connecting rod 44.
The two rods 42, which are driven in parallel by the air cylinder 41 via the
43, lifting block 455 provided with rollers 31a
(Corresponding to a first block of the present invention), a block raising / lowering mechanism (hereinafter referred to as a lifting / lowering mechanism) 45 coupled to one end of the rod 42 for vertically moving the lifting / lowering block 455, and a rotating block 463 provided with a roller 31b (this invention). , A block rotation mechanism (hereinafter referred to as a rotation mechanism) 46 coupled to one end of the rod 43 and rotating the rotation block 463, and a roller position setting mechanism 47. 41, lifting mechanism 45, rotating mechanism 4
6. The roller position setting mechanism 47 is a base plate B
The chuck mechanism 4 has a base plate B attached to a hand RH of a handling robot.
Note that the roller 31a pressing the outer peripheral edge 1a is not shown in FIG.
As shown in FIG. 1, two are provided at a predetermined interval, but only one is shown in FIG. The other one is attached to the lifting block 455 in exactly the same relationship. In the following, description will be made focusing on the roller 31a shown in FIG.

Here, as shown in FIGS. 1 and 2, the disk 1 is arranged vertically. The base plate B is similarly arranged perpendicularly to a direction perpendicular to the surface of the disk 1. The rods 42 and 43 are connected to the base plate B
Are supported by an elevating mechanism 45 and a rotating mechanism 46 so as to move along the disk 1 and advance and retreat with respect to the disk 1, respectively.
The roller position setting mechanism 47 is fixed to the base plate B,
Three air cylinders 471, 472, 4 connected in series
73. The piston rod 47a is a piston rod of the air cylinder 473. The air cylinder 471 and the air cylinder 472 are arranged to face each other, and the respective piston rods are connected. The rear end of the air cylinder 473 is connected to the rear end of the air cylinder 472, and these are an integral cylinder. The rear end of the air cylinder 471 is fixed to the base plate B. As a result, the cylinder as a whole moves the piston rod 47a forward and backward in three stages.

The operation will be briefly described. When the air cylinder 471 is contracted and driven, the air cylinder 471 is moved.
And the air cylinder 473 in front of it moves to the left by the amount corresponding to the contraction. As a result, the piston rod 47a assumes the first stage contraction position. Next, when the air cylinder 472 is driven to contract, the piston rod of the air cylinder 472 causes the air cylinder 473 in front of it to move.
Moves to the left by the amount of contraction. As a result, the piston rod 47a assumes the second-stage contraction position. Further, when the air cylinder 473 is driven to contract, the piston rod 4
7a contracts. As a result, the piston rod 47a becomes 3
Take the contraction position of the step. In the case of extension drive, the operation is reversed. First, the piston rod of the air cylinder 473 is driven to extend, then the piston rod of the air cylinder 472 is driven to extend, and finally, the piston rod of the air cylinder 471 is driven to extend and returns to the original state.

Thus, the piston rod 47a contracts in three stages by the air cylinders connected in series,
Stretch and return. Thereby, the piston rod 47a
Moves forward and backward with respect to the disk 1 like the rods 42 and 43. The distal end of the piston rod 47a is connected to the connecting rod 4
4 at one point P1. The position of this point P1 is determined by three air cylinders 471, 472,
473 move along the base plate B when each is driven. FIG. 1 corresponds to the state of FIG. 3C described later, and shows a state in which a 3.5-inch disk is chucked. At this time, the two air cylinders 47
1,472 is driven to the contraction side, and the piston rod 47a
Is in a two-stage contraction state. The other end of the rod 42 is rotatably connected to the connecting rod 44 at a point P2 on the way. The other end of the rod 43 is directly connected to the piston rod of the air cylinder 41, and the other end of the rod 44 is rotatably connected at a point P3 on the way. The elevating block 455 is moved up and down along the guide rail 451 by the elevating mechanism 45, and the roller 31a for pressing the outer peripheral edge 1a of the disk 1 is rotatably supported by a shaft (attached via a shaft) to the elevating block 455. I have.

The lifting mechanism 45 is roughly divided into a slider crank mechanism 450, a bell crank 454 serving as a crank of the slider crank mechanism 450, and a lifting block 455 provided with a slider 452 of the slider crank mechanism 450.
Are connected to each other. The guide rail 451 on which the slider 452 slides is fixed to the base plate B. A connecting link 453 axially connected to the slider 452 at a point P4 is a bell crank 454.
Is axially connected at one point P5. The other end of the bell crank 454 is axially connected to one end of the rod 42 at a point P7. The center of rotation of this bell crank 454 is
It is a point P6 pivotally supported by the base plate B, and thereby, rotates in a plane substantially parallel to the base plate B. The bell crank 454 is connected to the rod 42 and serves as the drive side, and the driven arm is used as the crank of the slider crank mechanism 450.

Therefore, the rod 4 with respect to the disk 1
The bell crank 454 reciprocates around the point P6 in accordance with the advance and retreat of the second. In response, the slider 452 moves up and down via the link 453. When the rod 42 advances with respect to the disk 1, the slider 452 rises in accordance with the advance. Conversely, when the rod 42 retreats from the disk 1 side, the slider 452 descends. Thus, the height of the slider 452 with respect to the disk 1 can be set according to the forward or backward position of the rod 42. The lifting block 455 is not directly attached to the slider 452, but is attached via a parallel link 456. The reason is that the parallel link 45
By attaching a small gap through the gap 6, the buffer effect can be provided by the gap when the disk is chucked.

The parallel link 456 includes two links 456a and 456b arranged in parallel, and maintains the side surface of the lifting block 455 parallel to the side surface of the slider 452. In the drawing, for the sake of explanation, the above-mentioned gap is shown, but in actuality, before chucking the disk, the elevating block 455 falls down to move the slider 452.
After the disk is chucked, the lifting block 455 rises upward and contacts the side surface of the slider 452. Here, it is assumed that the roller 31a is set at a certain height position with respect to the disk 1 by the roller position setting mechanism 47 (the position setting operation of the roller position setting mechanism 47 will be described later). When the rod 42 moves to the right (in the direction of retreating with respect to the disk 1) with respect to the disk 1, the slider 452 descends and the lifting block 45
The roller 31a attached to 5 changes from the position indicated by the solid line to the position indicated by the dotted line. As a result, the outer periphery of the disk 1 is pressed and the disk 1 enters a disk chuck state. Conversely, when the rod 42 moves to the left (in the direction in which it advances with respect to the disk 1), the slider 452 rises, and the roller 31a rises. As a result, the roller 31a rises from the disk chuck state shown by the dotted line to the released state shown by the solid line.

Next, the relationship between the rotating mechanism 46 and the rotating block 463 which rotates by this will be described. The rotation mechanism 46 is fixed to the base plate B, and the inclined surface 4
A fixed plate 461 having the fixed plate 51a and a point P8 of the fixed plate 461;
And a parallel link 462b supported by a fixed plate 461. The rotation block 463 includes an inclined surface 46 facing the inclined surface 451a.
3a is provided on the upper rear side, and a bell crank 462 is provided.
The base plate B is pivotally supported via the point P8 and the fixed plate 461, is rotated, and moves forward and backward with respect to the disk 1 and the roller 31a. The rotating block 463 includes the disc 1
A roller 31b that presses the inner peripheral edge 1b is rotatably supported.

The bell crank 462 is connected to the rod 43 and serves as a drive side. The end of the arm on the driven side is axially connected to the rotating block 463. Accordingly, the rotation mechanism 46 rotates the rotation block 643 in accordance with the advance and retreat of the rod 43 to move the roller 31 b to the disk 1 and the roller 3.
1a. Here, the link 46 is parallel to the arm 462a on the driven side of the bell crank 462.
2b is provided as a parallel link. As a result, the rotation is performed in a plane substantially parallel to the base plate B. further,
The point P8 which is the rotation axis of the bell crank 462 and the link 46
A coil spring 462c mounted in a compressed state is provided between the shaft support point P9 on the side of the rotation block 643 of 2b. By the action of the coil spring 462c, the rotation block 6
43 normally projects a little further from the disk side than indicated by the dotted line, and at this time, the inclined surfaces 463a and 451a
Is in contact with

As shown, inclined surfaces 463a and 461a are opposed to each other between the rotating block 463 and the fixed plate 461, and these are connected by a parallel link with a certain gap. As a result, the lifting block 455
As in the case of (1), when the disk is chucked, the buffer effect is provided only by the gap, and furthermore, the rotation angle of the parallel link is made large, and the amount of protrusion of the roller 31b toward the disk 1 and the roller 31a is increased. In. In such a configuration, first, before the disk is chucked, the rod 43 advances with respect to the disk, and the roller 31b is retracted against the coil spring 462c. At this time, the roller 31a also rises upward from the outer periphery of the disk 1. This state is the position of each roller indicated by a solid line in FIG.

When the rod 43 moves to the right (in the direction of retreating with respect to the disc 1), the rotating block 463 moves forward with respect to the disc 1 and rises to
Approach 1a. At this time, the roller 31a comes to the position shown by the dotted line in FIG. Then, the roller 31b changes from the position indicated by the solid line to the position indicated by the dotted line, presses the inner peripheral edge 1b of the disk 1, and enters the disk chuck state. The coil spring 462c assists in pressing the inner peripheral edge 1b with a predetermined pressure in this chucked state, and also provides relief so that a certain force or more is not applied to the inner and outer circumferences of the disk. Conversely, when the rod 43 moves to the left (in the direction to advance with respect to the disk 1), the rotating block 465 returns to the position shown by the solid line against the compressive force of the coil spring 462c, and the roller 31b descends. As a result, the disk 1 is separated from the roller 31a and retreated with respect to the disk 1. At this time, the interval with the roller 31a is widened, and the disk is released from the chuck. At this time, the roller 31a is also in the state shown by the solid line in FIG.

In order to make the above-described coil spring work, a coil spring similar to the coil spring 462c may be mounted between the opposed shafts of the parallel link 456 connecting the slider 452 and the lifting block 455. Good. When a coil spring is mounted here, the coil spring 462c can be removed. That is, the rods 42 and 43 retreat with respect to the disk 1 (the rods 42 and 43 move to the right).
Then, the rollers 31a and 31b approach together by the lifting mechanism 45 and the rotating mechanism 46, and the disk 1 is chucked. Conversely, when the rods 42 and 43 move forward with respect to the disk 1 (the rods 42 and 43 move to the left), the chuck of the disk 1 is released. The forward and backward movements of the rods 42 and 43 are controlled by the air cylinder 41 to connect rods 44 and 43.
Done through. When the air cylinder 41 advances the rod 43, the connecting rod 44 is at the position indicated by the solid line,
The rod 42 also advances with the rod 41. When the air cylinder 41 retracts the rod 43, the connecting rod 4
4 becomes the position of the two-dot chain line, and the rod 42 retreats together with the rod 41.

As described above, FIG. 1 shows that two air cylinders 471 and 472 are connected to the piston rod 47a.
Is in a state of two-stage contraction driven by contraction. This state is
Here, it corresponds to the case where a 3.5-inch diameter disk is chucked. In this embodiment, even if the disk size is different, the rollers 31a and 31b can chuck the disk by the same operation as described above. That is, without changing the position of the point P3,
The position of the point P2 of the rod 42 changes according to the position of the slider 42, and the position of the slider 452 moves up and down. Thus, the interval between the rollers 31a and 31b can be set according to the size of the disk 1. This roller 31a
Is set by the roller position setting mechanism 47. The roller position setting mechanism 47 includes three air cylinders 4.
The length of the piston rod 47a is changed by sequentially driving 71, 472, and 473. The rod 4
The position of the point P1 of 4 moves left and right with the connecting point P3 with the rod 43 as a fulcrum. Thus, the slider 452 is moved up and down to set the position of the roller 31a to a position corresponding to the size of the disk 1.

The relationship between the operation of the roller position setting mechanism 47 for setting the position of the point P1 and the disk chuck will now be described. FIG. 3A shows a case where the three air cylinders 471, 472, 473 are not operated. This corresponds to the case where a 2.5 inch disk is chucked. At this time, the position of the point P1 is on the rightmost side. On the other hand, FIG. 3D shows three air cylinders 471,
472 and 473 are contracted. This corresponds to the case where a 5.25 inch disk is chucked. At this time, the position of the point P1 is on the leftmost side.
Then, as the air cylinders 471, 472, 473 are sequentially driven, the position of the point P1 moves from right to left. Accordingly, the size of the disc to be chucked increases in the order of (b), (c), and (d).

In addition, in the operation of chucking and releasing the disk in each figure, the position of the point P3 does not change regardless of the position of the point P1, so that the operation performed by the air cylinder 41 is almost the same. It is, in each figure,
When the connecting rod 44 is located at the position indicated by the dotted line, both rods 42,
43 moves to the right, and both rollers 31a, 31b
Is pressed against the outer peripheral edge 1a and the inner peripheral edge 1b of the disk 1 to chuck the disk 1. When both the connected rods 42 and 43 move to the left, both rollers 31a and 31b are retracted from the disk 1 and release the chuck of the disk 1. The chucking and releasing of the disk are performed by rotating the connecting rod 44 about the point P1 by the pressing air cylinder 41 in each of FIGS. 3A to 3D from the position indicated by the solid line in the drawing. This is performed by moving to the position indicated by the dotted line. At this time, the point P1
It is preferable to make the length of the connecting rod 44 relatively long so that the respective rotation angles θ do not change much with respect to the change of the position.

Since the amount of movement of the rollers 31a and 31b for the chuck does not change at the point P3, the amount of movement of the rods 42 and 43 for the chuck hardly changes. Therefore, even if the size of the disk changes, the amount of movement of the roller for the chuck can hardly change. As a result, the pressing force of each roller against the disk can be determined by driving the air cylinder 41 regardless of the size of the disk. Therefore, the pressing force of the roller can be set within a predetermined range even if the disc size is different. In FIG. 3, the rotation angle θ
In order to clarify the mutual relationship, the length of each of the rods 42 and 43 in the left-right direction with respect to the length of the connecting rod 44 is slightly shorter than that in FIG.

Here, the size of the disk 1 is four types of 2.5 inches, 3.3 inches, 3.5 inches, and 5.25 inches, and these are referred to as a disk D2.5 and a disk D3 for convenience. Subscripts such as .3 are used. (A)
The case in which the air cylinders 471, 472, and 473 are all in the extended state and the respective contracting operations are stopped. At this time, the point P is located at the rightmost position and has stopped. This is for the case of chucking the minimum size disk D2.5. At this time, the rollers 31a and 31b are retracted as indicated by the solid lines. (B) is an air cylinder 47
This is the case with respect to the disk D3.3 in which the point P1 has been moved slightly to the left by driving only 1 to operate. At this time, the connecting rod 44 rotates counterclockwise about the point P3, and the rod 42 moves to the left. The pressing position of the roller 31a which presses the outer peripheral edge by this left movement is set higher than in the case of (a) and is positioned so as to correspond to the outer peripheral edge 1a of the disk D3.3. However, the rod 43
Since the roller 31b does not move, the pressing position of the roller 31b on the inner peripheral edge side is the same as that in FIG. Both rollers 31a, 31b are
The same operation as (a) can be performed to chuck the disk D3.3. It should be noted that the air cylinder that is driven to contract is indicated by stitches in the figure below.

(C) shows a case where the air cylinders 471 and 472 are operated to move the point P1 further to the left. This is for the disk D3.5. At this time, the connecting rod 44 and the rod 42 move further to the left, respectively, and the position of the roller 31a is set further upward. As a result, the disk D3.5 can be chucked. This is the state shown in FIG. (D) is a case where the air cylinders 471, 472, 473 are driven, all of them are operated, and the outer peripheral pressing roller 31a is set at a position corresponding to the disk D5.25. The position of the roller 31a further rises and is set upward. As a result, the disk D5.25 can be chucked. The operation of each unit is the same as described above. The adjustment of the roller height according to the size of the disk is performed by adjusting the length of the piston rod driven by the air cylinders 471, 472, and 473, the length of the arm of the bell crank 454, and the length of the connecting link of the slider crank. Can be adjusted. Further, the roller position setting mechanism is not limited to the dandem cylinder, and it is needless to say that if the amount of movement of the roller position setting mechanism is four or more, it is possible to cope with even more disk sizes.

As described above, in the embodiment, the elevating block is connected via the parallel link. However, it goes without saying that the elevating block may be directly connected to the slider or integrated with the slider. In addition, the rotating block is configured to rotate with respect to the disk and the roller 31a to advance and retreat, but this may be a mechanism that obliquely advances and retreats toward the disk 1 and the roller 31a. Good. Note that the roller position setting mechanism of the embodiment is an example, and the drive source is not limited to an air cylinder. By the way, in the embodiment, the disk is chucked by retracting the rod. However, the disk can be chucked by advancing the rod.
This can be achieved simply by interposing a member or mechanism for reversing the direction of motion, for example, one lever or bell crank. This reverses the forward and backward movements. That is, the forward and backward movement of the rod here may be reversed, and it is easily possible by providing a member for reversing the direction of movement, and the same operation is performed even if the forward and backward movements are reversed. be able to.

[0030]

As described above, according to the present invention, the width of the roller can be set according to the size of the disk, and the roller which presses the outer peripheral edge side even when the roller width is changed, includes the inner roller and the inner roller. The roller pressing the peripheral edge side is simultaneously moved close by a predetermined amount to apply pressure to the inner and outer circumferences of the disk with a predetermined pressing force to chuck the disk. As a result, it is efficient without the need for manpower and time unlike the conventional exchange method, and contributes to the efficiency of the chuck mechanism for various sizes of the discs stored in the cassette.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of a disk chuck mechanism according to the present invention.

FIG. 2 is an explanatory diagram of a chuck state of the disk.

FIGS. 3A to 3D are explanatory diagrams illustrating the operation of the roller position setting mechanism. FIGS. 3A to 3D are diagrams illustrating the case of each of 2.5 inch to 5.25 inch disks.

FIG. 4 is an explanatory diagram of a disk housed in a cassette.

FIGS. 5A and 5B are diagrams illustrating the configuration and operation of a conventional chuck mechanism. FIG. 5A is a schematic side view of the chuck mechanism.
(B) is an explanatory view of the disk chuck operation.

[Explanation of symbols]

1 ... Disc, 1a ... Outer edge, 1b ... Inner edge,
2 cassette, 3 conventional chuck mechanism, 31a outer peripheral pressing roller, 31b inner peripheral pressing roller 4 flexible chuck mechanism of the present invention, 41 pressing air cylinder, 42, 43 moving rod, 44 connecting arm ,
45 ... lift mechanism, 46 ... pivoting mechanism, B ... base plate, p ₁ ~p
₅ ... connection or pivot point, RH ... robot hand, # 1
# 3: Number of three air cylinders, D _2.5 ... 2.5 inch disk, D _3.3 ... 3.3 inch disk, D _3.5 ...
3.5 inch disk, D _5.25 ... 5.25 inch disk.

Claims (5)

[Claims] 1. A disk chuck mechanism for chucking a disk by pressing a first roller and a second roller against an outer peripheral edge and an inner peripheral edge of the disk, respectively, wherein: A first plate and a second plate which are provided at a predetermined interval and which advance and retreat with respect to the disk along the base plate.
A first block moving substantially parallel to the surface of the disk and along the base plate; a first roller provided on the first block; and a second rod A second block that advances and retreats with respect to the first roller and the disk in accordance with the advance and retreat of the first roller, the second roller provided in the second block, and the first block fixed to the base plate. A roller position setting mechanism for moving the first block along the base plate by moving a rod with respect to the disc to position the first roller at a position corresponding to the size of the disc; A disc chuck mechanism comprising: a reciprocating mechanism for moving the first and second rods back and forth with respect to the disc. 2. The moving mechanism according to claim 1, wherein the moving mechanism moves the first rod set at a predetermined position by the roller position setting mechanism together with the second rod.
The disk chuck mechanism according to claim 1, wherein the block moves forward or backward with respect to the first roller and the disk by rotating or moving obliquely in accordance with the advance or retreat of the second rod. 3. The first rod is rotatably supported by the base plate in a plane substantially parallel to the base plate and has one end connected to one end of the first rod. A first bell crank driven by the advancing / retracting mechanism, a slider sliding along the base plate, and a first bell crank;
And the first connection link connects the other end of the first bell crank to the slider, and the driven arm of the first bell crank serves as a crank to connect the slider. 3. The disk chuck mechanism according to claim 2, further comprising a slider crank mechanism for moving, wherein the first block is supported by the slider. 4. The second rod is fixed to the base plate so as to be rotatable in a plane substantially parallel to the base plate, and one end of the second rod is connected to one end of the second rod. 4. The disk chuck mechanism according to claim 3, further comprising a second bell crank driven by the advance / retreat mechanism via the second block, wherein the second block is coupled to the other end of the second bell crank. 5. The disk according to claim 1, wherein the disk is a magnetic disk or a substrate disk thereof, and
Is a roller having a V-shaped groove, and two first rollers are provided at a predetermined interval, and the first rollers are respectively pivotally supported by the first block. 5. The disk chuck mechanism according to claim 4, wherein the disk chuck mechanism is rotatably supported by the second block, and the second block is rotatably supported by the base plate via a second connection link.