CN213400542U - Optical disk holding assembly and optical disk pickup device - Google Patents
Optical disk holding assembly and optical disk pickup device Download PDFInfo
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- CN213400542U CN213400542U CN202021969191.XU CN202021969191U CN213400542U CN 213400542 U CN213400542 U CN 213400542U CN 202021969191 U CN202021969191 U CN 202021969191U CN 213400542 U CN213400542 U CN 213400542U
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- positioning column
- disc
- optical disk
- contact site
- optical disc
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Abstract
The utility model relates to a data storage technical field provides a CD centre gripping subassembly, including reference column, rotatable to the jack catch that supports the interior pore wall of CD and be used for ordering about in can inserting the centre bore of CD the reference column has at least one contactability the first contact site of interior pore wall, the jack catch have can support interior pore wall is with the cooperation the second contact site of the interior pore wall that first contact site blocked the CD, first contact site with the second contact site is in the coplanar. The optical disk taking device comprises the optical disk clamping assembly and a driving mechanism for driving the positioning column to be inserted into the central hole of the optical disk. The utility model discloses a with first contact site and second contact site control in same plane, ensure that the power of centre gripping is said and also in same plane, compare in the power of current centre gripping and say the height that probably appears and fall by mistake, and the condition that the contact site that leads to became invalid for the centre gripping is more stable.
Description
Technical Field
The utility model relates to a data storage technical field specifically is a CD centre gripping subassembly and CD take out dish device.
Background
The data growth speed of the big data era is continuously improved, more and more important data need to be stored for a long time, and then huge pressure is generated on the storage capacity and performance. But where much of the data becomes cold, it is rarely read. Therefore, it is desirable to store such cold data using a storage method that has long-term storage capability, good random access performance, and low cost. Optical disc storage is an inexpensive way to store data for a long period of time, and a batch of optical discs can be used to store such cold data. Physically and automatically picking a given disc from a set of discs presents significant challenges.
The existing main method is to provide a tray capable of being pulled out for each optical disk in a disk box, and to carry out disk taking operation through a mechanical hand disk gripper, a lifter and a mechanical hand displacement device which runs in vertical and horizontal directions. When taking the disc, the lifter is lifted to a proper position, the disc gripper draws out a layer of disc tray in the disc box, the disc gripper picks up the disc in the disc tray, then the disc tray is closed again, then the lifter is lifted to a proper position, and the disc gripper places the disc on the CD driver for being read by the CD driver. If the optical disc in the optical disc drive needs to be placed back to the optical disc tray, the procedure is just opposite to the above. This approach requires a tray for each disc and also requires a dedicated magazine, resulting in a low overall storage density of the disc storage system and increased system components, complexity and cost.
In addition, the existing disk gripper needs to insert a blade-like insertion piece into the gap between two optical disks to pick up the upper optical disk. This approach requires a sufficiently high gap between the two discs, or the use of thinner, more wear resistant inserts, while using a complex control approach to ensure that the inserts can be inserted accurately into the gap between the discs. This approach also adds substantial complexity to the manufacture of the optical disc, making the design of the disc grabber complex, difficult and costly to manufacture.
Subsequently, a mode that the disk gripper is inserted into the optical disk through the displacement driving assembly and the central hole of the optical disk is clamped through the first contact part and the second contact part in the central hole of the optical disk is provided, although the mode has a simple structure and very low manufacturing difficulty and cost, in the actual use process, the situation that clamping is unstable due to the fact that the thickness of the central hole of the optical disk is small and the contact parts cannot accurately contact the central hole wall of the optical disk easily occurs if the number of the contact parts is multiple is found, and the clamping success rate is not satisfactory.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a CD centre gripping subassembly and CD take out dish device, through with first contact site and second contact site control in same plane, ensure that the power of centre gripping is said and also in same plane, and then make the centre gripping more stable.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a CD clamping component comprises a positioning column which can be inserted into a central hole of a CD, a clamping jaw which can rotate to abut against the inner hole wall of the CD and a rotating shaft which is used for driving the clamping jaw to rotate, wherein the positioning column is provided with at least one first contact part which can contact the inner hole wall, the clamping jaw is provided with a second contact part which can abut against the inner hole wall to match with the first contact part to clamp the inner hole wall of the CD, and the first contact part and the second contact part are positioned in the same plane.
Furthermore, the central axis of the rotating shaft and the central axis of the positioning column are distributed at intervals.
Furthermore, the positioning column is provided with an accommodating cavity for accommodating the rotating shaft, and the clamping jaw which does not rotate is located in the accommodating cavity.
And the control component is used for controlling the rotating shaft to rotate after the positioning column is inserted into the central hole of the optical disk so as to drive the clamping jaws to rotate.
Further, the control assembly comprises a pressure sensor capable of contacting the surface of the optical disc and a controller for acquiring a signal of the pressure sensor and controlling the rotation of the rotating shaft, and the pressure sensor is mounted on the positioning column.
Furthermore, there are two pressure sensors, and the two pressure sensors are respectively arranged on two sides of the positioning column.
Further, the surfaces of the two pressure sensors contacting the surface of the optical disc are located in the same plane.
Furthermore, along the inserting direction of the positioning column, the end part of the positioning column inserted into the central hole of the optical disk is in a tapered shape.
Further, the cross section of the positioning column is square, oval or triangular, and the positioning column is provided with one or two first contact parts; or the cross section of the positioning column is circular, and the positioning column is provided with the first contact part.
The embodiment of the utility model provides another kind of technical scheme: a disk taking device comprises the disk clamping assembly and a driving mechanism for driving the positioning column to be inserted into a central hole of a disk.
Compared with the prior art, the beneficial effects of the utility model are that: by controlling the first contact part and the second contact part in the same plane, the clamping force is ensured to be in the same plane, so that the clamping is more stable.
Drawings
Fig. 1 is a schematic diagram of an optical disc clamping assembly according to an embodiment of the present invention (initial position, without clamping an optical disc);
fig. 2 is a schematic diagram of a disc clamping assembly according to an embodiment of the present invention (working position, clamping a disc);
fig. 3 is a schematic view illustrating a claw of an optical disc clamping assembly abutting against an inner wall of a central hole of an optical disc according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides an optical disc clamping assembly, including a positioning column 1 insertable into a central hole of an optical disc 5, a clamping claw 3 rotatable to abut against an inner hole wall of the optical disc 5, and a rotating shaft 2 for driving the clamping claw 3 to rotate, wherein the positioning column 1 has at least one first contact portion contactable to the inner hole wall, the clamping claw 3 has a second contact portion contactable to the inner hole wall to cooperate with the first contact portion to clamp the inner hole wall of the optical disc 5, and the first contact portion and the second contact portion are located in the same plane. In this embodiment, after the positioning column 1 is inserted into the central hole of the optical disc 5, the first contact portion of the positioning column abuts against the inner hole wall of the optical disc 5, and then the claw 3 is rotated out through the rotating shaft 2, so that the second contact portion of the claw 3 abuts against the inner hole wall of the optical disc 5, and then the first contact portion and the second contact portion can cooperate to clamp the inner hole wall of the optical disc 5, thereby completing the clamping action. The number of the first contact portions may be varied during the clamping, for example, if there is only one, the first contact portions and the second contact portions cooperate to clamp the inner hole wall of the optical disc 5, and when there are two or more, for example, two first contact portions, plus one second contact portion, for a total of three contact portions, more stable clamping can be achieved. Specifically, the cross section of the positioning column 1 is square, oval or triangular, and the positioning column 1 is provided with one or two first contact parts; or the cross section of the positioning column 1 is circular, and the positioning column 1 is provided with one first contact part. In the embodiment, the contact parts are limited in the same plane, so that the acting force is in the same plane, and the force in other directions can not occur, thereby ensuring more stable clamping. In general, the positioning column 1 moves in the vertical direction, that is, the tray taking action is performed by going straight up and down (the tray taking action includes the clamping action of the present embodiment), so the plane described in the present embodiment can be defined as a horizontal plane, which can ensure that several contact parts are horizontal, ensure that the clamping force is also in the horizontal plane, and no up-down direction or other oblique force occurs, so that the clamping is more stable.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, fig. 2 and fig. 3, the central axis of the rotating shaft 2 and the central axis of the positioning column 1 are arranged at an interval. In this embodiment, there are two cases, one case is that the rotating shaft 2 may be disposed on the positioning column 1 and move along with the movement of the positioning column 1, that is, as shown in fig. 1, the rotating shaft 2 is connected to the positioning column 1 through a connecting portion, but the central axis of the rotating shaft 2 (shown in fig. 1 as a vertical axis) and the central axis of the positioning column 1 (shown in fig. 1 as a vertical axis) are disposed at an interval, the two central axes may be parallel, so that the central axis of the rotating shaft is eccentric, so that when the rotating shaft 2 drives the claw 3 to unscrew, the claw 3 may be longer, and can abut against the inner wall of the central hole of the optical disc when the rotating shaft is rotated out, thereby forming a second contact portion. In the second case, the rotating shaft 2 is not disposed on the positioning post 1, but is driven by the driving member to move along with the positioning post 1, and the central axes of the two are spaced from each other, as described above. Due to the small size of the central hole of the optical disc, the size of either the positioning post 1 or the rotating shaft 2 should be suitable for being inserted into the central hole.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1, the positioning column 1 has a receiving cavity 10 for receiving the rotating shaft 2, and the non-rotating claw 3 is located in the receiving cavity 10. In this embodiment, a cavity is formed in the positioning column 1, and can accommodate the rotating shaft 2, and when the clamping jaw 3 does not rotate, the clamping jaw can be accommodated in the accommodating cavity, so that the space can be further saved, the size control is simpler, and the rotating shaft 2 and the clamping jaw 3 can conveniently enter the central hole of the optical disc 5 along with the positioning column 1. Specifically, after the positioning column 1 enters the central hole of the optical disc 5, the first contact portion thereof contacts the inner hole wall of the optical disc 5 first, then the rotating shaft 2 rotates, the clamping claw 3 rotates out of the accommodating cavity 10, the second contact portion thereof abuts against the inner hole wall, and the first contact portion and the second contact portion are matched to realize clamping.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1, fig. 2 and fig. 3, the assembly further includes a control assembly for controlling the rotation of the rotating shaft 2 to drive the rotation of the clamping jaw 3 after the positioning column 1 is inserted into the central hole of the optical disc 5. Preferably, the control assembly comprises a pressure sensor 4 capable of contacting the surface of the optical disc 5 and a controller for acquiring a signal of the pressure sensor 4 and controlling the rotation of the rotating shaft 2, wherein the pressure sensor 4 is mounted on the positioning column 1. In this embodiment, the embodiment is an implementation mode that the rotating shaft 2 rotates after the positioning column 1 is automatically controlled to be in place, specifically, a pressure sensor 4 is provided, after the positioning column 1 enters the central hole of the optical disc 5, along with the downward movement of the positioning column, the pressure sensor 4 touches the surface of the optical disc 5, which can represent that the positioning column 1 has reached a specified position, a pressure signal obtained by the pressure sensor 4 can be transmitted to a controller, the controller converts the pressure signal into an electrical signal, or the pressure sensor 4 itself has a signal conversion capability, converts the pressure signal into an electrical signal, and then the electrical signal is transmitted to a driving part instruction for controlling the rotating shaft 2 to rotate, and the driving part is powered to drive the rotating shaft 2 to rotate, so as to complete the pressing action of the clamping jaw 3. In this whole set of actions, the controller is an existing conventional device, which can cooperate with the pressure sensor 4 to send out an electric signal, and the detailed implementation principle is not described in detail here, and the pressure sensor 4 is also a common component on the market, and can be bought and used directly. In this way, the pressure sensor 4 can reduce the delay between the insertion of the positioning column 1 and the rotation of the rotating shaft 2. Moreover, the pressure sensor 4 can also act as a limit member, indicating that the positioning column 1 has reached the specified position, and the first contact portion thereof just touches the inner hole wall of the optical disc 5. Of course, it is also possible to control the rotation of the shaft 2 manually, in particular by observing that the positioning post 1 is inserted and then controlling the rotation of the shaft 2, in practice the delay will not be very long during use.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 and fig. 2, there are two pressure sensors 4, and the two pressure sensors 4 are respectively disposed on two sides of the positioning column 1. In this embodiment, two pressure sensors 4 may be provided, and the two pressure sensors are preferably arranged symmetrically with the positioning column 1 as a symmetry axis.
To further optimize the above solution, referring to fig. 1, fig. 2 and fig. 3, the surfaces of the two pressure sensors 4 contacting the surface of the optical disc 5 are located in the same plane. In the present embodiment, in order to be more stable in cooperation with the above-described horizontal clamping, the contact surfaces of the two pressure sensors 4 are also in one horizontal plane.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1, fig. 2 and fig. 3, along the insertion direction of the positioning column 1, the end 11 of the positioning column inserted into the central hole of the optical disc 5 is tapered. In this embodiment, the lower end of the positioning column 1 is designed to be tapered, so that the positioning column 1 can enter the central hole of the optical disc 5 conveniently.
Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides a disc taking device for an optical disc 5, including the above-mentioned optical disc clamping assembly and a driving mechanism for driving the positioning column 1 to be inserted into a central hole of the optical disc 5. In this embodiment, the above-mentioned optical disc clamping assembly is applied to the optical disc 5 to complete the disc fetching operation in cooperation with the driving mechanism. The general action is that the driving mechanism controls the positioning column 1 to move downwards to be inserted into the central hole of the optical disc 5, then clamping is completed, and the driving mechanism controls the positioning column 1 to move upwards, and at this time, the clamped optical disc 5 is carried to move upwards to complete disc taking action. Preferably, the driving mechanism may include a first displacement driving member and a second displacement driving member, wherein the first displacement driving member drives the optical disc clamping assembly to move horizontally, after the central hole of the optical disc 5 is aligned, the second displacement driving member drives the optical disc clamping assembly to move downwards, drives the positioning post 1 to be inserted into the central hole to realize the clamping action, and then the second displacement driving member drives the optical disc clamping assembly to move upwards to take out the clamped optical disc 5, and then drives the optical disc 5 to move horizontally to the placing position through the first driving member. Specifically, the first displacement driving member includes a vertical rod rotatable around its axis, a horizontal rod vertically installed on the vertical rod, and a driving motor driving the vertical rod to rotate, and the optical disc clamping assembly is installed on the horizontal rod. The vertical rod is a mechanical rod with a sliding groove, and the sliding groove of the mechanical rod extends along the length direction of the mechanical rod. The first displacement driving piece drives the horizontal rod to slide in the sliding groove so as to realize up-and-down movement.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A disc clamping assembly, comprising: the positioning column is provided with at least one first contact part capable of contacting the inner hole wall, the clamping jaw is provided with a second contact part capable of abutting against the inner hole wall to match with the first contact part to clamp the inner hole wall of the optical disc, and the first contact part and the second contact part are positioned in the same plane.
2. The disc clamp assembly of claim 1, wherein: the central axis of the rotating shaft and the central axis of the positioning column are distributed at intervals.
3. The disc clamp assembly of claim 1, wherein: the positioning column is provided with an accommodating cavity for accommodating the rotating shaft, and the clamping jaw which does not rotate is located in the accommodating cavity.
4. The disc clamp assembly of claim 1, wherein: the control assembly is used for controlling the rotating shaft to rotate after the positioning column is inserted into the central hole of the optical disk so as to drive the clamping jaws to rotate.
5. The disc clamp assembly of claim 4, wherein: the control assembly comprises a pressure sensor capable of contacting the surface of the optical disc and a controller for acquiring a signal of the pressure sensor and controlling the rotation of the rotating shaft, and the pressure sensor is mounted on the positioning column.
6. The disc clamp assembly of claim 5, wherein: the pressure sensors are two in number and are respectively arranged on two sides of the positioning column.
7. The disc clamp assembly of claim 6, wherein: the surfaces of the two pressure sensors, which are in contact with the surface of the optical disc, are located in the same plane.
8. The disc clamp assembly of claim 1, wherein: along the inserting direction of the positioning column, the end part of the positioning column inserted into the central hole of the optical disk is in a tapered shape.
9. The disc clamp assembly of claim 1, wherein: the cross section of the positioning column is square, oval or triangular, and the positioning column is provided with one or two first contact parts; or the cross section of the positioning column is circular, and the positioning column is provided with the first contact part.
10. An optical disk pickup device characterized in that: comprising a disc clamp assembly according to any of claims 1-9 and a drive mechanism for driving the positioning posts into the central hole of the disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021969191.XU CN213400542U (en) | 2020-09-10 | 2020-09-10 | Optical disk holding assembly and optical disk pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021969191.XU CN213400542U (en) | 2020-09-10 | 2020-09-10 | Optical disk holding assembly and optical disk pickup device |
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| Publication Number | Publication Date |
|---|---|
| CN213400542U true CN213400542U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021969191.XU Active CN213400542U (en) | 2020-09-10 | 2020-09-10 | Optical disk holding assembly and optical disk pickup device |
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| CN (1) | CN213400542U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113601507A (en) * | 2021-08-11 | 2021-11-05 | 武汉光忆科技有限公司 | Method for positioning operation point, disk taking method and disk taking device |
| CN113618713A (en) * | 2021-07-29 | 2021-11-09 | 武汉光忆科技有限公司 | Disk taking device capable of selectively grabbing multiple optical disks, disk taking device and disk taking method |
-
2020
- 2020-09-10 CN CN202021969191.XU patent/CN213400542U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618713A (en) * | 2021-07-29 | 2021-11-09 | 武汉光忆科技有限公司 | Disk taking device capable of selectively grabbing multiple optical disks, disk taking device and disk taking method |
| CN113618713B (en) * | 2021-07-29 | 2024-05-17 | 武汉光忆科技有限公司 | Disk taking device capable of selectively grabbing multiple optical disks, disk taking device and disk taking method |
| CN113601507A (en) * | 2021-08-11 | 2021-11-05 | 武汉光忆科技有限公司 | Method for positioning operation point, disk taking method and disk taking device |
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