JPH0357399Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a disk chuck, and more particularly to a disk chuck for clamping precisely machined disks such as magnetic disks.

Prior Art For example, in a magnetic disk that is incorporated into a magnetic disk device or the like for magnetic recording/reproduction, after its shape, dimensions, recording surface, etc. are precisely processed,
Magnetic performance, size and shape, etc. are inspected in a clean room to prevent dust from adhering. In this way, the magnetic disk inspection process carried out in a clean room is automated using industrial robots, etc., and the magnetic disk is clamped by a disk chuck installed at the tip of the robot's arm. transported. Then, the magnetic disk is attached to the inspection device by the operation of the robot, and after the inspection is completed, it is again clamped to the disk chuck and inserted into a magazine or the like.

Conventionally, this type of disk chuck consists of a vacuum chuck that annularly attracts the non-signal part on the inner circumferential side of the magnetic disk, and a vacuum chuck that simultaneously displaces four movable ends, two on each side of the movable part. A four-point chuck and the like configured to abut against the outer periphery of a magnetic disk are known.

Problems to be Solved by the Invention However, in the case of the former disc chuck, there is a risk of scratching the disc surface when the vacuum chuck adsorbs the disc, and especially when the chuck is moved rapidly, the disc surface may be scratched. is easily scratched. Another disadvantage of vacuum chucks is that it is difficult to make the vacuum chuck body thin, making it difficult to fit into narrow spaces such as magazines that house magnetic disks. Furthermore, in the case of the latter type of disc chuck, the movable parts on both sides are driven simultaneously to displace the four movable ends, which has the drawback of complicating the structure and increasing the size. In addition, the latter method has many moving parts, so it is disadvantageous to work in a clean room.

Therefore, it is an object of the present invention to provide a disk that eliminates the above-mentioned drawbacks.

Means and action for solving the problem A disk chuck is used to transport disks processed with high density, and includes a main body that is movable in vertical and horizontal directions, and a cylinder mechanism fixed to this main body. and a movable end that is connected to this cylinder mechanism and is operated by the driving of the cylinder mechanism, and a movable end that is connected to this movable end and communicates with a pin cylinder provided in the cylinder mechanism, and that is connected to a pin cylinder that is provided in the cylinder mechanism and that moves in a predetermined direction. an intake port to which a suction force is applied; an arm fixed to the main body and extending downward; and a frame having a pair of fixed ends attached to the arm. The pair of fixed ends are brought into contact with the outer periphery of the disk, and the pin cylinder displaces the movable end toward the pair of fixed ends through the disk, thereby clamping the outer periphery of the disk, By configuring the suction port to suck in impurities such as dirt and dust generated during the operation of the pin cylinder, the performance of the highly processed magnetic disk can be maintained, and the overall thickness of the disk can be reduced. Aiming for miniaturization,
It is also designed to be applicable to use inside a clean room.

Embodiment FIG. 1 shows an embodiment of the disk chuck according to the present invention. In FIG. 1, a disk chuck 1 is attached to an arm 2 of an industrial robot, and moves in the directions of arrows X, Y, and Z as the arm 2 moves. When the disk chuck 1 is lowered and inserted into the magazine 3, it clamps the magnetic disk (hereinafter simply referred to as disk) 4 housed in the magazine 3, and as the arm 2 rises, the disk chuck 1 is inserted into the magazine 3.
Take out from magazine 3. Note that the magazine 3 includes a plurality of processed disks 4 ₁ , 4 ₂ , 4 ₃ ,...
4n is stored. These disks 4 ₁ , 4
₂ , 4 ₃ , . . . 4n are taken out one by one in a clean room by the operation of an industrial robot, mounted on an inspection device (not shown), and then inspected for magnetic performance, etc. The disk 4 that has been inspected is again clamped to the disk chuck 1 and transported, and then inserted into another magazine (not shown).

As shown in FIGS. 2 and 3, the disk chuck 1 that clamps the disk 4 is configured to clamp the outer periphery of the disk 4 at roughly three points, a pair of fixed ends 5 and 6 and a movable end 7. ing. The main body 8 of the disk chuck 1 is connected to the tip 2 of the arm 2.
It is attached to the arm 2 and moves vertically and horizontally with the arm 2. As shown in FIGS. 4 and 5, inside the main body 8 there are a pin cylinder 9 provided in a cylinder chamber 9b, guide shafts 10 and 11 for guiding the movement of the movable end 7 driven by the pin cylinder 9, and a guide shaft. Support parts 12 and 13 that slidably support parts 10 and 11 are incorporated therein.

Here, the pin cylinder 9 is fixed to the frame 14 by a fixing member 26. In addition, 9a
is a piston rod sliding inside the pin cylinder 9,
9c is a connecting rod connected to one end of the piston rod 9a, and 9d is a hole formed above the cylinder chamber 9b.

14 is a frame, and a boss 8 protrudes from the main body 8.
It is positioned by fitting with the parts a and 8b, and is fixed to the main body 8 by tightening the four screws 15.
Further, the frame 14 is formed in an inverted U-shape, and fixed ends 5 and 6 are provided at the tips of arms 14a and 14b extending downward. Note that V-shaped grooves 5a and 6a are formed on the outer periphery of the fixed ends 5 and 6, and the disk 4 is moved into these grooves 5 during clamping.
a, 6a and held therein. Also, frame 1
4 has a shape that widens toward the bottom as it goes downward, so the pair of fixed ends 5 and 6 are spaced apart at symmetrical positions, but the distance between them is the same as that of the magazine 3.
The size is such that it can be inserted between the partition plates 3a.

Further, since the pair of fixed ends 5 and 6 are of a non-movable structure, parts such as the frame 14 that are inserted into a narrow space within the magazine 3 can be made thinner.

The movable end 7 is disposed at a position facing the pair of fixed ends 5 and 6 with the disk 4 in between, and is fixed to a bracket 16 as shown in FIG. The movable end 7 has a V-shaped groove 7a, and the outer periphery of the disk 4 is fitted into this groove 7a to stably hold the disk 4. The bracket 16 engages with a disc-shaped engagement member 17 fixed to the tip of the piston rod 9a of the pin cylinder 9. Further, as shown in FIG. 6, the bracket 16 has a part of the engaging member 17 fitted into the groove 16a provided at the center of the U-shape, and the guide shafts 10, 11 are inserted into the holes 16b, 16c at both ends. The ends are fitted and fixed.

A photo sensor 18 is fixed to the side surface of the main body 8, and an optical fiber 20 inserted into a mounting member 19 attached to the frame 14 is connected to detect the presence of the disk 4. Further, the tip of the optical fiber 20 is connected to a hole 1 formed in the frame 14.
4c, and when the disk 4 is clamped, a signal from the reflected light is supplied to the photo sensor 18.

As shown in FIGS. 5 and 6, the fixing member 26 is provided with ports 21 and 22 for supplying and discharging compressed air, and air supply pipes 23 and 22, respectively, are provided in the fixing member 26.
It communicates with the inside of 25. As described above, the engaging member 17 is fixed to the tip of the connecting rod 9c of the pin cylinder 9, and the engaging member 17 is connected to the bracket 16 by the groove 16a provided in the bracket 16. , the movement of the connecting rod 9c is transmitted to the movable piece 7 fixed to the bracket 16.

Further, on both sides of the bracket 16, there are supporting parts 12,
Guide shaft 1 that moves linearly while being guided by 13
0 and 11 are fixed, the movable piece 7 moves linearly smoothly.

In addition, in the pin cylinder 9, at positions corresponding to the ports 21 and 22 of the above-mentioned fixing member 26,
A port 27 for suctioning leakage air is provided, and by vacuum suction from the supply pipe 24 communicating with this port, the leakage air from the cylinder chamber 9b will not flow out from the hole 9d, and the supply pipe 24 will be sucked from the port 27. It enters the vacuum pump etc. via the
Therefore, dust generated when the pin cylinder operates,
Impurities such as dust are not carried into the clean room and the clean room is not contaminated.

The operation of the disk chuck 1 when taking out the disk 4 stored in the magazine 3 will now be explained.

First, in the disk chuck 1 before clamping, air is supplied into the cylinder chamber 9b from one port 21 of the pin cylinder 9, and the piston rod 9a is displaced in the direction of arrow _Y1 . That is,
In FIG. 5, the movable end 7 has been displaced to a position indicated by a dashed line that is spaced apart from the pair of fixed ends 5 and 6. Next, the arm 2 is driven and lowered, and the disk chuck 1 is lowered into the magazine 3. and,
A pair of fixed ends 5 and 6 located at the lower end of the disk chuck 1 are inserted into the lower end of the disk 4 and brought into contact with the outer peripheral edge of the disk 4.

Next, the outer periphery of the disk 4 is connected to the grooves 5 and 6 of the fixed ends 5 and 6.
a, 6a, air is supplied to the other port 22, air is exhausted from one port 21, and the piston rod 9a is driven in the direction of arrow _Y2 . For this reason, the movable end 7 is guided by the guide shafts 10 and 11 while moving between the pair of fixed ends 5 and 6.
It is driven to the side and comes into contact with the upper outer peripheral edge of the disk 4.

Therefore, the disk 4 is clamped by a pair of fixed ends 5, 6 that abut the lower periphery and a movable end 7 that abuts the upper periphery. Therefore, there is no risk of scratching the recording surface of the disk 4 during clamping, and therefore it is possible to perform a rapid clamping operation, and it is also possible to improve work efficiency by shortening the disk transport time. .

The disk 4 is stably held by fitting its peripheral edges into the V-shaped grooves 5a, 6a, 7a of the fixed ends 5, 6 and the movable end 7 without falling off. Then, as the arm 2 moves upward, the disk 4 clamped to the disk chuck 1 is taken out from the magazine 3 and conveyed to the inspection device. After the inspection is completed, the disk 4 is inserted into another magazine by the reverse operation to the above.

Further, when the disk 4 is clamped and transported, the presence of the disk 4 is detected by the photo sensor 18, and even if the disk 4 should fall, this can be detected immediately. Further, as mentioned above, the disk chuck 1 has one movable part that drives the movable end 7.
It is particularly advantageous for use in a clean room where dirt, dust, etc. are disliked. Further, since only one pin cylinder 9 is provided as a driving section, the disk chuck 1 has a more compact structure.

In addition, in the above description, a plurality of disks 4 ₁ , 4 ₂ ,
. . 4n is described as being stored in the magazine 3 shown in FIG. 1, but there is a magazine with a structure other than this, in which a shaft (not shown) is fitted into the center hole 4a of each disk 4. However, in the disk chuck 1 of the present invention, since the fixed ends 5 and 6 are provided at the tip of the frame 4, there is no need to provide an unnecessary structure on the frame 14 facing the central hole 4a of the disk 4. It is possible to provide a relief portion 14d in the center so that the shaft crosses the shaft. Therefore, the disk chuck 1 makes it possible to take out the disk 4 mounted on a magazine having a shaft, and to mount the disk 4 after inspection on the shaft.

In the above description, a magnetic disk was described as being clamped, but not only a magnetic disk but also a disk-shaped object such as a compact disk, a video disk, a record disc, etc. can be clamped and transported.

Effects of the invention As mentioned above, the disk chuck according to the present invention does not require a drive unit on the fixed end side, so the fixed end side can be made thinner, especially for magazines that store multiple disks in close proximity. It becomes possible to fit the fixed end into the inner clamping part or the like. Furthermore, since the outer periphery of the disk is clamped by the fixed end and the movable end, there is no risk of scratching the recording surface of the disk during clamping, and the disk can be stably clamped. Therefore, the performance of the disk will be maintained. moreover,
Since only one drive unit is required to drive the movable end, the configuration can be made more compact, and it is suitable for use in clean rooms, and is especially advantageous for use in places where precision products, equipment, etc. are handled. be. Furthermore, when the movable end is moved, the intake port is connected to the movable end and communicates with a pin cylinder provided in the cylinder mechanism, and the suction force is applied in a predetermined direction. Since the air cylinder is configured to suck air, impurities such as dirt and dust generated during the operation of the air cylinder will not be carried into the clean room even though the air cylinder is used, and the clean room will therefore be contaminated. There is no such thing. In addition, by providing a fixed end at the tip of the frame, there is no need to attach unnecessary parts to the part facing the center hole of the disk. It also has features such as being able to attach the disk to the shaft.

[Brief explanation of the drawing]

FIG. 1 is a perspective view for explaining one embodiment of the disk chuck according to the present invention, FIGS. 2, 3, and 4 are a front view, side view, and bottom view of the disk chuck, respectively, and FIG. A vertical cross-sectional view along the line V-V in Figure 2,
FIG. 6 is a top view of the disk chuck. 1...disk chuck, 4...disk,
5, 6... Fixed end, 7... Movable end, 9... Pin cylinder, 10, 11... Guide shaft, 14...
…flame.

Claims (1)

[Scope of utility model registration request] It is a disk chuck used to transport disks processed with high density, and it consists of a main body that can move vertically and horizontally, a cylinder mechanism fixed to this main body, and a cylinder mechanism connected to this cylinder mechanism. , a movable end operated by the drive of the cylinder mechanism, and an intake port connected to the movable end and communicating with a pin cylinder provided in the cylinder mechanism, to which a suction force is applied in a predetermined direction. and a frame having an arm fixed to the main body and extending downward thereof, and a frame having a pair of fixed ends attached to the arm, the pair of fixed ends being connected to the disk. The pin cylinder displaces the movable end toward the pair of fixed ends through the disk, thereby clamping the outer circumference of the disk and removing dust and dirt generated when the pin cylinder operates. A disk chuck characterized in that it is configured to suck impurities such as the like through the intake port.