An optical disc pickup device

Abstract

The application provides an optical disc grabbing device, which comprises a linear driving mechanism extending along a first direction; a mounting support connected to the linear driving mechanism, the mounting support being capable of linear reciprocating motion in the first direction through the linear driving mechanism and being capable of elastic deformation when subjected to pressure in the first direction; a grabbing component installed on the mounting support and used for contacting and extracting an optical disc; and a sensing component installed on the mounting support and connected to the linear driving mechanism in signal and used for sensing the deformation of the mounting support; wherein the mounting support is displaced along the first direction until the grabbing component contacts the uppermost optical disc to form a reaction force to make the mounting support deform, the sensing component sends a sensing signal to the linear driving mechanism after sensing the deformation of the mounting support, and the linear driving mechanism brakes the linear motion of the mounting support when receiving the sensing signal; and the problems of positioning misjudgment and application limitation caused by the surface characteristics of the optical disc or the structural limitation of the equipment are solved.

Description

Technical Field

[0001] This application relates to the technical field of optical disc transport equipment, and more particularly to an optical disc gripping device. Background Technology

[0002] Robotic arm technology for grasping optical discs is widely used in automated optical disc storage, retrieval, inspection, and burning systems, and is a core component for achieving unmanned optical disc operation. This technology typically uses a robotic arm equipped with a specialized grasping device (such as a suction cup, clamp, or lifting structure) to precisely position the target optical disc under control system commands, completing the grasping, handling, and placement actions. To ensure the stability and safety of the grasping process, the robotic arm must accurately sense the position and orientation of the optical disc to avoid grasping failure or damage to the disc surface due to positioning deviations. Especially in multi-layered optical disc libraries or high-density storage environments, the requirements for grasping accuracy and response speed are even more stringent. Therefore, achieving reliable and accurate positioning of optical discs has become one of the key technologies in robotic arm grasping systems.

[0003] In existing technologies, sensor-assisted positioning technology is typically used to ensure that the gripping components of a robotic arm can accurately contact and grasp optical discs. One common method is to integrate a laser rangefinder sensor into the gripping device. By emitting a laser beam and receiving the signal reflected from the optical disc surface, the distance between the sensor and the disc is calculated, thus determining whether the gripping component is close to or in contact with the disc surface. Another technical solution is to use a grating positioning system. This involves setting high-precision optical encoders and grating rulers along the robotic arm's movement path. By reading the robotic arm's position coordinates in real time and combining them with preset optical disc storage position parameters, precise positioning of the gripping action is achieved. Both technologies improve the automation level and positioning accuracy of gripping to some extent and are partially applied in high-end optical disc processing equipment.

[0004] However, existing technologies still have significant drawbacks. When using laser rangefinders for position sensing, the measurement results are easily affected by the surface characteristics of optical discs. For example, the surface of an optical disc with colored printed patterns may irregularly scatter or absorb the laser, resulting in unstable reflected signal intensity and misjudging the contact state by the sensor. For optical disc substrates with high light transmittance (such as some semi-transparent or thin-layered recordable discs), the laser may partially penetrate the disc surface, causing ranging errors or even detection failure. Furthermore, ambient light interference can also affect the accuracy of the sensor. On the other hand, while positioning using gratings offers high accuracy, the equipment is expensive, installation and debugging are complex, and sufficient space must be reserved inside the equipment to accommodate the grating ruler and reading head, placing high demands on the overall structural design and making it difficult to widely apply in low-cost or compact devices. Therefore, existing technologies have significant limitations in terms of adaptability, reliability, and cost control, and there is an urgent need for a more stable, economical, and widely applicable optical disc gripping and positioning solution. Utility Model Content

[0005] This application provides an optical disc gripping device to solve the problems of misjudgment and application limitations caused by the surface characteristics of optical discs or the limitations of device structure in the prior art. The technical solution is as follows:

[0006] This application provides an optical disc gripping device for gripping optical discs stacked along a first direction, comprising: a linear drive mechanism extending along the first direction and disposed on one side of each optical disc; a mounting bracket connected to the linear drive mechanism and located above each optical disc, the mounting bracket being capable of linear reciprocating motion in the first direction via the linear drive mechanism and capable of elastic deformation when subjected to pressure in the first direction; a gripping component mounted on the end of the mounting bracket away from the linear drive mechanism for contacting and extracting the topmost optical disc; and a sensing component mounted on the mounting bracket and signal-connected to the linear drive mechanism for sensing the deformation of the mounting bracket.

[0007] The mounting bracket moves along the first direction until the gripping component contacts the uppermost optical disc, creating a reaction force that deforms the mounting bracket. After sensing the deformation of the mounting bracket, the sensing component sends a sensing signal to the linear drive mechanism, thereby braking the linear movement of the mounting bracket when the linear drive mechanism receives the sensing signal.

[0008] In one embodiment, the mounting bracket includes: a fixed part connected to a linear drive mechanism; a force-bearing part on which a gripping component is mounted; and a deformable part connected between the fixed part and the force-bearing part, wherein the rigidity of the deformable part is less than that of the fixed part and the force-bearing part.

[0009] In one embodiment, the deformable part is configured as two strip-shaped connecting blocks connected between the fixed part and the force-bearing part, and a first reduction hole is formed between the two strip-shaped connecting blocks to reduce the rigidity of the deformable part; sensing components are respectively disposed on the two strip-shaped connecting blocks in a fitted manner.

[0010] In one embodiment, the two strip connecting blocks are also provided with second reduction holes, which are through holes and extend along a second direction perpendicular to the first direction, so as to reduce the rigidity of the deformed part in the first direction.

[0011] In one embodiment, the fixing part is provided with a plurality of first mounting holes for connecting fasteners to connect the linear drive mechanism; the force-receiving part is provided with a plurality of second mounting holes corresponding one-to-one with the gripping component for fixing the gripping component.

[0012] In one embodiment, the linear drive mechanism includes: a linear slide rail extending along a first direction; a lead screw rotatably mounted on the linear slide rail; a sliding mounting seat slidably mounted on the linear slide rail and threadedly fitted onto the lead screw so that when the lead screw rotates, the sliding mounting seat is driven by the lead screw to slide on the linear slide rail; and a mounting bracket connected to one end of the sliding mounting seat near each optical disc.

[0013] In one embodiment, the device further includes a signal amplifier disposed on a sliding mounting base, wherein the sensing element is electrically connected to the signal amplifier, and the signal amplifier is used to convert the sensing signal emitted by the sensing element into a recognizable electrical signal.

[0014] In one embodiment, it further includes: a programmable logic controller (PLC), a signal amplifier and a linear drive mechanism are connected via the PLC, and the PLC controls the sliding distance of the sliding mount on the linear slide rail by the electrical signal converted by the signal amplifier.

[0015] In one embodiment, the gripping component includes: an air tube inserted into a second mounting hole, the air tube having an air inlet port and an air outlet port, the air inlet port being located on the side of the mounting bracket facing each optical disc, and the air outlet port being located on the side of the mounting bracket away from the air inlet port; and a suction cup connected to the air inlet port and communicating with the air tube, the suction cup being used to contact the upper surface of the uppermost optical disc.

[0016] In one embodiment, it further includes: a negative pressure device, installed on a sliding mounting base, located at the end of the sliding mounting base away from the mounting bracket, the negative pressure component being connected to the air outlet end, for providing negative pressure adsorption force to the gripping component.

[0017] Compared with existing technologies, the optical disc gripping device proposed in the above technical solution abandons laser rangefinders and high-cost grating positioning systems that rely on optical reflection principles, and instead adopts a contact detection mechanism based on mechanical deformation feedback. Since the sensing component directly senses the physical deformation of the mounting bracket after being subjected to the reaction force of the optical disc, this signal has a high degree of consistency and direct correlation with whether the gripping component is actually in contact with the optical disc. It is unaffected by factors such as the printed pattern, color, and light transmittance of the optical disc surface, avoiding misjudgments caused by abnormal reflection signals. This significantly improves the stability and adaptability of the gripping action, making it particularly suitable for automated processing scenarios of various recordable optical discs with printed layers or high light transmittance. Furthermore, the structure of this application is simple, eliminating the need for additional complex optical sensors or high-precision grating rulers, reducing the overall system cost and assembly complexity, while saving internal space. This facilitates the miniaturization and integration of the optical disc gripping device, demonstrating good manufacturability and broad application potential.

[0018] In summary, this application not only overcomes the shortcomings of existing technologies, such as the susceptibility of laser ranging to surface characteristics interference, the high cost of grating positioning, and the large space occupation, but also provides a highly responsive, reliable, low-cost, and versatile optical disc gripping contact detection solution.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0021] Figure 1 This is a three-dimensional structural diagram of a CD gripping device proposed in the embodiments of this application;

[0022] Figure 2 This is a three-dimensional structural diagram of the mounting bracket and sensing component in an embodiment of this application.

[0023] Figure label:

[0024] 1. Linear drive mechanism;

[0025] 11. Linear guide rail; 12. Sliding mounting base;

[0026] 2. Install the bracket;

[0027] 21. Fixing part; 22. Load-bearing part; 23. Strip connecting block;

[0028] 210, First mounting hole; 220, Second mounting hole; 230a, First cutting hole; 230b, Second cutting hole;

[0029] 3. Grabbing components;

[0030] 31. Air tubing components; 32. Suction cup components;

[0031] 4. Sensing components;

[0032] 5. Signal amplifier;

[0033] 6. Negative pressure equipment. Detailed Implementation

[0034] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0035] Reference Figure 1 and Figure 2 As shown, an embodiment of this application proposes an optical disc gripping device for gripping optical discs stacked along a first direction. The optical disc gripping device may include: a linear drive mechanism 1 extending along the first direction and disposed on one side of each optical disc; a mounting bracket 2 connected to the linear drive mechanism 1 and located above each optical disc, the mounting bracket 2 being able to reciprocate linearly in the first direction via the linear drive mechanism 1, and being able to generate elastic deformation when the mounting bracket 2 is subjected to pressure in the first direction; a gripping component 3 installed at the end of the mounting bracket 2 away from the linear drive mechanism 1 for contacting and extracting the topmost optical disc; and a sensing component 4 installed on the mounting bracket 2 and signal-connected to the linear drive mechanism 1 for sensing the deformation of the mounting bracket 2.

[0036] The mounting bracket 2 is displaced along the first direction until the gripping component 3 contacts the uppermost optical disc to generate a reaction force that causes the mounting bracket 2 to deform. After the sensing component 4 senses the deformation of the mounting bracket 2, it sends a sensing signal to the linear drive mechanism 1, thereby braking the linear movement of the mounting bracket 2 when the linear drive mechanism 1 receives the sensing signal.

[0037] Specifically, in the technical solution adopted in this application, the linear drive mechanism 1 can drive the mounting bracket 2 to perform linear reciprocating motion along a first direction. A gripping component 3 for contacting and extracting a single optical disc is installed on the mounting bracket 2, cooperating with the mounting bracket 2 capable of linear reciprocating motion, thereby continuously repeating the motion of extracting optical discs. As stacked optical discs are continuously extracted, the height of the stacked discs continuously changes. To ensure that the gripping component 3 reliably contacts the upper surface of the top optical disc without damaging it, or to control the linear sliding distance of the mounting bracket 2 on the linear drive mechanism 1 without damaging the optical discs, the key technical point of this application is that the mounting bracket 2 is configured as a structure capable of elastic deformation, and a sensing component 4 for sensing elastic deformation is arranged on the mounting bracket 2. In use, the linear drive mechanism 1 drives the mounting bracket 2 to move linearly in the first direction until the gripping component 3 contacts the upper surface of the topmost disc in the stacked optical discs. The topmost disc generates a reaction force, which is transmitted to the mounting bracket 2 through the gripping component 3. The mounting bracket 2 undergoes elastic deformation due to this reaction force. When the sensing component 4 detects this elastic deformation, it indicates that the gripping component 3 has contacted the disc, thus stopping the linear drive mechanism 1 from driving the mounting bracket 2 in the first direction, completing the gripping operation of the disc by the gripping component 3. In this application, the sensing component 4 can be a strain gauge or a gravity sensor, and a reduction structure can be incorporated into the mounting bracket 2 to weaken its structural rigidity, making it more prone to elastic deformation.

[0038] Furthermore, refer to Figure 1 and Figure 2 As shown, in some embodiments, the mounting bracket 2 includes: a fixing part 21 connected to the linear drive mechanism 1; a force-receiving part 22 on which the gripping component 3 is mounted; and a deformable part connected between the fixing part 21 and the force-receiving part 22, wherein the rigidity of the deformable part is less than that of the fixing part 21 and the force-receiving part 22.

[0039] Specifically, in the technical solution adopted in this application, the cutting structure can be set on the deformable part located between the fixed part 21 and the force-bearing part 22, so that the rigidity of the deformable part is less than that of the fixed part 21 and the force-bearing part 22, so that the mounting bracket 2 is stably mounted on the linear drive mechanism 1 through the fixed part 21, and the gripping component 3 is also reliably mounted on the force-bearing part 22.

[0040] Furthermore, refer to Figure 1 and Figure 2As shown, in some embodiments, the deformable part is configured as two strip-shaped connecting blocks 23 connected between the fixed part 21 and the force-bearing part 22, and a first cutting hole 230a is formed between the two strip-shaped connecting blocks 23 to reduce the rigidity of the deformable part; sensing components 4 are respectively disposed on the two strip-shaped connecting blocks 23 in a fitted manner.

[0041] Specifically, in the technical solution adopted in this application, in order to enable the deformable part to undergo elastic deformation, the deformable part can be configured as two strip-shaped connecting blocks 23. The two strip-shaped connecting blocks 23 are arranged at intervals and connected between the fixed part 21 and the force-receiving part 22, so as to form a first cutting hole 230a between the two strip-shaped connecting blocks 23. The fixed part 21 and the force-receiving part 22 can be configured as plate-shaped structures with better rigidity characteristics than the deformable part, so that the rigidity of the deformable part is less than that of the fixed part 21 and the force-receiving part 22. Sensing components 4 are respectively arranged on the two strip-shaped connecting blocks 23. The sensing components 4 are fixed to the strip-shaped connecting blocks 23 by a bonding method so that when the strip-shaped connecting blocks 23 undergo elastic deformation, their force is transmitted to the sensing components 4. After being subjected to pressure, the sensing components 4 can emit a sensing signal indicating that the mounting bracket 2 has undergone elastic deformation, or a sensing signal indicating that the driving component has contacted the optical disc.

[0042] Furthermore, refer to Figure 1 and Figure 2 As shown, in some embodiments, the two strip connecting blocks 23 are also provided with second reduction holes 230b, which are through holes and extend along a second direction perpendicular to the first direction, so as to reduce the rigidity of the deformed part in the first direction.

[0043] Specifically, in the technical solution adopted in this application, in order to make the deformable part more likely to undergo elastic deformation, a second reduction hole 230b can be opened on the two strip connecting blocks 23. The second reduction hole 230b has a through hole structure, and the extension direction of the second reduction hole 230b is a second direction perpendicular to the first direction. Thus, the thickness of the two strip connecting blocks 23 along the first direction can be reduced through the second reduction hole 230b, thereby further reducing the rigidity of the two strip connecting blocks 23 in the first direction.

[0044] Furthermore, refer to Figure 1 and Figure 2 As shown, in some embodiments, the fixing part 21 is provided with a plurality of first mounting holes 210, which are used to connect fasteners to connect the linear drive mechanism 1; the force-receiving part 22 is provided with a plurality of second mounting holes 220 corresponding one-to-one with the gripping component 3, which are used to fix the gripping component 3.

[0045] Specifically, in the technical solution adopted in this application, the fastener passes through the first mounting hole 210 on the fixing part 21 and is fixed on the linear drive mechanism 1, so that the mounting bracket 2 can be detachably mounted on the linear drive mechanism 1; while the gripping part 3 can be inserted into the second mounting hole 220 of the force receiving part 22, so that the gripping part 3 can be detachably mounted on the mounting bracket 2, and the deformable part is located between the fixing part 21 connecting the linear drive mechanism 1 and the force receiving part 22 fixing the gripping part 3, so that when the gripping part 3 contacts the optical disc, the reaction force can be transmitted from the force receiving part 22 to the deformable part, so as to cause the deformable part to undergo elastic deformation.

[0046] Furthermore, refer to Figure 1 and Figure 2 As shown, in some embodiments, the linear drive mechanism 1 includes: a linear slide rail 11 extending along a first direction; a lead screw rotatably mounted on the linear slide rail 11; a sliding mounting seat 12 slidably mounted on the linear slide rail 11 and threadedly fitted onto the lead screw so that when the lead screw rotates, the sliding mounting seat 12 is driven by the lead screw to slide on the linear slide rail 11; and a mounting bracket 2 connected to one end of the sliding mounting seat 12 near each optical disc.

[0047] Specifically, in the technical solution adopted in this application, the linear drive mechanism 1 may include: a linear slide rail 11 and a sliding mounting base 12. The sliding mounting base 12 is slidably disposed on the linear slide rail, and the mounting bracket 2 is detachably mounted on the lower end of the sliding mounting base 12, that is, the lower end of the sliding mounting base 12 faces each optical disc; thereby enabling the mounting bracket 2 to slide synchronously with the sliding mounting base 12 on the linear slide rail 11. In order to control the sliding movement of the sliding mounting base 12 on the linear slide rail 11, in one embodiment, a lead screw can be rotatably disposed on the linear slide rail 11. The lead screw has an external thread structure, and the sliding mounting base 12 can be sleeved on the lead screw, and the sliding mounting base 12 has an internal thread structure adapted to the external thread structure. In use, rotating the lead screw drives the sliding mounting base 12 to perform linear reciprocating motion on the linear slide rail 11 in a sliding manner. This application is not limited to this driving method. Other methods can also be used, such as: a cylinder pushing the sliding mounting seat 12 to slide on the linear slide rail 11, so that the sliding mounting seat 12 can perform linear reciprocating motion along the first direction.

[0048] Furthermore, refer to Figure 1 and Figure 2 As shown, in some embodiments, it further includes: a signal amplifier 5, disposed on the sliding mounting base 12, the sensing component 4 being electrically connected to the signal amplifier 5, the signal amplifier 5 being used to convert the sensing signal emitted by the sensing component 4 into a recognizable electrical signal.

[0049] Furthermore, refer toFigure 1 and Figure 2 As shown, in some embodiments, it further includes: a programmable logic controller (PLC), a signal amplifier 5 and a linear drive mechanism 1 connected by a PLC signal, and the PLC controls the sliding distance of the sliding mount 12 on the linear slide rail 11 by an electrical signal converted by the signal amplifier 5.

[0050] Specifically, in the technical solution adopted in this application, in order to enable the sensing signal emitted by the sensing component 4 to be recognized, the optical disc gripping device proposed in this application may further include a signal amplifier 5 electrically connected to the sensing component 4. In use, the sensing signal emitted by the sensing component 4 is acquired by the signal amplifier 5, which then converts the sensing signal into an electrical signal that can be recognized by a programmable logic controller (PLC). The PLC can then control the start and stop of the linear drive mechanism 1. When the PLC acquires the electrical signal converted by the signal amplifier 5, it can brake the linear drive mechanism 1, that is, brake the linear movement of the sliding mounting base 12 on the linear slide rail 11, thereby ensuring that the gripping component 3 reliably abuts against the upper surface of the optical disc and avoiding damage to the optical disc.

[0051] In one embodiment, the degree of deformation of the deformable portion on the mounting bracket 2 can be determined by the number of sensing signals emitted by the sensing component 4. Specifically, when the deformable portion on the mounting bracket 2 undergoes elastic deformation, it transmits pressure to the sensing component 4. The pressure causes a change in the resistance value of the sensing component 4 to emit a differential voltage signal. The signal amplifier 5 then amplifies this differential voltage signal into a recognizable electrical signal and transmits it to the programmable logic controller (PLC) as a control signal for braking the linear drive mechanism 1.

[0052] Furthermore, refer to Figure 1 and Figure 2 As shown, in some embodiments, the gripping component 3 includes: an air tube 31, which passes through the second mounting hole 220, and has an air inlet port and an air outlet port. The air inlet port is located on the side of the mounting bracket 2 facing each optical disc, and the air outlet port is located on the side of the mounting bracket 2 away from the air inlet port; and a suction cup 32, which is connected to the air inlet port and communicates with the air tube 31, and is used to contact the upper surface of the uppermost optical disc.

[0053] Specifically, in the technical solution adopted in this application, the gripping component 3 can extract the optical disc by adsorption. It may include: an air tube 31, detachably mounted in the second mounting hole 220 of the force-bearing part 22 on the mounting bracket 2, with an air inlet port and an air outlet port communicating with each other at both ends. The air inlet port is located on the lower side of the mounting bracket 2 facing the optical disc, while the air outlet port is located on the upper side of the mounting bracket 2 away from the air inlet port. A suction cup 32 is connected to the air inlet port of the air tube 31 and communicates with it. In use, when the mounting bracket 2 moves towards the stacked optical discs on the linear drive mechanism 1, the suction cup 32 can abut against the upper surface of the uppermost optical disc.

[0054] Furthermore, refer to Figure 1 and Figure 2 As shown, in some embodiments, it further includes: a negative pressure device 6, installed on the sliding mounting base 12, located at the end of the sliding mounting base 12 away from the mounting bracket 2, the negative pressure component is connected to the air outlet end, and is used to provide negative pressure adsorption force to the gripping component 3.

[0055] Specifically, in the technical solution adopted in this application, a negative pressure device 6 can also be configured on the sliding mounting base 12. The negative pressure device 6 can be connected to the air outlet port of the air pipe 31 through a connecting pipe, so as to provide a negative pressure adsorption force to the suction cup 32 connected to the air inlet port through the air outlet port. When the suction cup 32 abuts against the upper surface of the optical disc, the optical disc can be lifted by the negative pressure adsorption force, thereby achieving the purpose of extracting a single optical disc by the gripping component 3.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process. Furthermore, the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functionality involved.

[0059] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a processor-included system or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).

[0060] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. All or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware, the program being stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiments.

[0061] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. This storage medium can be a read-only memory, a disk, or an optical disk, etc.

[0062] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A disc gripping device for gripping discs stacked along a first direction, characterized in that, include: A linear drive mechanism extends along the first direction and is disposed on one side of each of the optical discs; The mounting bracket is connected to the linear drive mechanism and is located above each of the optical discs. The mounting bracket can reciprocate linearly in the first direction through the linear drive mechanism and can produce elastic deformation when the mounting bracket is subjected to pressure in the first direction. A gripping component, mounted on the end of the mounting bracket away from the linear drive mechanism, is used to contact and extract the uppermost optical disc; and, A sensing component, mounted on the mounting bracket and signal-connected to the linear drive mechanism, is used to sense the deformation of the mounting bracket. The mounting bracket is displaced along the first direction until the gripping component contacts the uppermost optical disc, generating a reaction force that deforms the mounting bracket. After sensing the deformation of the mounting bracket, the sensing component sends a sensing signal to the linear drive mechanism, thereby braking the linear motion of the mounting bracket when the linear drive mechanism receives the sensing signal.

2. The optical disc gripping device according to claim 1, characterized in that, The mounting bracket includes: The fixing part is connected to the linear drive mechanism; The force-bearing part is on which the gripping component is mounted; A deformable part is connected between the fixed part and the force-bearing part, and the rigidity of the deformable part is less than that of the fixed part and the force-bearing part.

3. The optical disc gripping device according to claim 2, characterized in that, The deformable part is configured as two strip-shaped connecting blocks connected between the fixed part and the force-bearing part, and a first cutting hole is formed between the two strip-shaped connecting blocks to reduce the rigidity of the deformable part; The sensing components are respectively disposed on the two strip-shaped connecting blocks in an adhesive manner.

4. The optical disc gripping device according to claim 3, characterized in that, Each of the two strip-shaped connecting blocks is also provided with a second reduction hole. The second reduction hole has a through hole structure and extends along a second direction perpendicular to the first direction to reduce the rigidity of the deformed part in the first direction.

5. A CD gripping device according to any one of claims 2 to 4, characterized in that, The fixing part is provided with a plurality of first mounting holes, which are used to connect fasteners to connect the linear drive mechanism. The force-bearing part is provided with a plurality of second mounting holes corresponding one-to-one with the gripping component, and the second mounting holes are used to fix the gripping component.

6. The optical disc gripping device according to claim 1, characterized in that, The linear drive mechanism includes: A linear guide rail extends along the first direction; A lead screw is rotatably mounted on the linear slide rail; A sliding mounting seat is slidably mounted on the linear slide rail and threadedly fitted onto the lead screw, so that when the lead screw rotates, the sliding mounting seat is driven by the lead screw to slide on the linear slide rail; The mounting bracket is connected to one end of the sliding mounting base near each of the optical discs.

7. The optical disc gripping device according to claim 6, characterized in that, Also includes: A signal amplifier is disposed on the sliding mounting base, and the sensing component is electrically connected to the signal amplifier. The signal amplifier is used to convert the sensing signal emitted by the sensing component into a recognizable electrical signal.

8. The optical disc gripping device according to claim 7, characterized in that, Also includes: A programmable logic controller (PLC) is provided, wherein the signal amplifier and the linear drive mechanism are connected via the PLC signal, and the PLC controls the sliding distance of the sliding mount on the linear slide rail by means of an electrical signal converted by the signal amplifier.

9. A CD gripping device according to claim 5, characterized in that, The grasping component includes: An air pipe is inserted into the second mounting hole. The air pipe has an air inlet port and an air outlet port. The air inlet port is located on the side of the mounting bracket facing each of the optical discs, and the air outlet port is located on the side of the mounting bracket away from the air inlet port. A suction cup is connected to the air inlet port and communicates with the air pipe. The suction cup is used to contact the upper surface of the uppermost optical disc.

10. A CD gripping device according to claim 9, characterized in that, Also includes: A negative pressure device is installed on the sliding mounting base, located at the end of the sliding mounting base away from the mounting bracket. The negative pressure component is connected to the air outlet and is used to provide negative pressure adsorption force to the gripping component.

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