Lens grabbing and fixing device and replacing equipment

Abstract

The utility model belongs to the technical field of lens clamping equipment, and discloses a lens grabbing and fixing device and replacing equipment. The lens grabbing and fixing device comprises a shell, a driving piece and an adsorption fixing piece. Wherein the shell is provided with a first accommodating cavity, a second accommodating cavity and a third accommodating cavity, the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are communicated with one another, the first accommodating cavity can accommodate the lens, the driving part is hermetically connected into the second accommodating cavity in a manner that the fixed position is adjustable, and the driving part can change the vacuum degree of the second accommodating cavity; the adsorption fixing piece is connected into the third containing cavity, an adsorption channel is formed in the adsorption fixing piece, the adsorption channel communicates with the second containing cavity, and the adsorption fixing piece is configured to grab the lens. According to the lens grabbing and fixing device, when the lens is grabbed, the lens is effectively isolated from the external environment, the lens is prevented from being collided, scratched or damaged in the machining or assembling process, and the integrity of the lens is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of lens clamping equipment technology, and in particular to a lens gripping and fixing device and a lens replacement device. Background Technology

[0002] During processing or assembly, optical lenses require specific tools for gripping and securing them. Existing optical lens gripping and securing devices mainly employ three-point fixing or threaded cap fixing. Three-point fixing refers to supporting and securing the optical lens through three fixed points to ensure precise alignment. However, when moving or adjusting the lens, three-point fixing may result in insufficient support, causing the optical lens to tilt or not be on the same reference plane. Threaded cap fixing uses the structure of a threaded cap to fix the optical lens. By rotating the threaded cap, the pressure on the optical lens can be adjusted to ensure the stability of the fixation. However, this can lead to wear or damage at the contact point between the optical lens and the cap. In existing technologies, manual suction cup gripping devices are commonly used to grip and secure optical lenses. However, after the suction cup grips the optical lens, it fails to effectively isolate the lens from the external environment, allowing the optical lens to be bumped, scratched, or damaged during processing or assembly, affecting the integrity of the optical lens. Utility Model Content

[0003] The purpose of this utility model is to provide a lens gripping and fixing device and a replacement device. The lens gripping device can effectively isolate the lens from the external environment, avoid the lens from being bumped, scratched or damaged during processing or assembly, and ensure the integrity of the lens.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] The lens gripping and fixing device includes:

[0006] The housing has a first receiving cavity, a second receiving cavity, and a third receiving cavity, which are connected to each other. The first receiving cavity can accommodate a lens.

[0007] A driving component is fixedly and adjustablely sealed within the second receiving cavity, and the driving component is capable of changing the vacuum level of the second receiving cavity;

[0008] An adsorption fixing member is connected to the third receiving cavity. The adsorption fixing member has an adsorption channel that communicates with the second receiving cavity. The adsorption fixing member is configured to grip the lens.

[0009] Preferably, the adsorption fixing element includes:

[0010] The fixing part is connected to the housing;

[0011] An adsorption part is connected to the fixing part. The adsorption part and part of the fixing part are housed in the third receiving cavity. The adsorption part has an adsorption channel that runs through the adsorption part. The adsorption part is capable of gripping the lens.

[0012] Preferably, the adsorption part is a suction cup.

[0013] Preferably, the driving element includes:

[0014] A drive unit is fixedly and adjustablely connected to the inner wall of the second receiving cavity;

[0015] A sealing part, which is capable of sealingly connecting with the inner wall of the second receiving cavity;

[0016] The driving part and the sealing part are connected in sequence, and the driving part can drive the sealing part to move in the second receiving cavity along the direction from the driving part to the sealing part.

[0017] Preferably, the outer wall of the driving member is recessed to form a sealing groove, or the inner wall of the second receiving cavity is recessed to form the sealing groove. The lens gripping and fixing device further includes:

[0018] A sealing element, wherein the sealing element is housed within the sealing groove and is sandwiched between the outer wall of the drive element and the inner wall of the second receiving cavity.

[0019] Preferably, the second receiving cavity includes a first receiving sub-cavity and a second receiving sub-cavity, and the size of the second receiving sub-cavity is greater than or equal to the size of the first receiving sub-cavity along a direction perpendicular to the housing.

[0020] Preferably, the lens gripping and fixing device further includes:

[0021] A limiting member is connected to the housing, and the driving member can abut against the limiting member.

[0022] Preferably, the housing has a groove along its extension direction, and the groove communicates with the first receiving cavity. The lens gripping and fixing device further includes:

[0023] A buffer element is provided within the groove, and the lens can abut against the buffer element.

[0024] Preferably, the size of the third receiving cavity is smaller than the size of the second receiving cavity in a direction perpendicular to the direction of extension of the housing.

[0025] The lens replacement device includes a transplanting device and a lens gripping and fixing device as described above, wherein the lens gripping and fixing device is disposed on the transplanting device.

[0026] The beneficial effects of this utility model are:

[0027] This utility model provides a lens gripping and fixing device and a replacement device. The lens gripping and fixing device includes a housing, a driving component, and an adsorption fixing component. The housing has a first accommodating cavity, a second accommodating cavity, and a third accommodating cavity, which are connected to each other. The first accommodating cavity can accommodate a lens. The driving component is fixedly and sealed in the second accommodating cavity in an adjustable position. The driving component can change the vacuum degree of the second accommodating cavity. The adsorption fixing component is connected to the third accommodating cavity and has an adsorption channel that communicates with the second accommodating cavity. The adsorption fixing component is configured to grip the lens.

[0028] When gripping the lens, the lens gripping and fixing device is placed on the lens, so that the lens is accommodated in the first receiving cavity. Then, the position of the driving component in the second receiving cavity is adjusted, thereby changing the gas pressure inside the second receiving cavity and thus adjusting the vacuum level inside the second receiving cavity. The adsorption fixing component has an adsorption channel, and the adsorption channel is connected to the second receiving cavity. When the driving component changes the vacuum level of the second receiving cavity, due to the connection of the adsorption channel, the adsorption fixing component generates a corresponding suction force, thereby gripping the lens in the first receiving cavity. At this time, the lens is completely located in the first receiving cavity. Through the above configuration, the lens is stably accommodated in the first receiving cavity during gripping, effectively isolating the lens from the external environment and preventing the lens from being bumped, scratched, or damaged during processing or assembly, thus ensuring the integrity of the lens. Attached Figure Description

[0029] Figure 1 This is an exploded view of the lens gripping and fixing device provided in this embodiment of the utility model;

[0030] Figure 2 This is an isometric view of the lens gripping and fixing device provided in this embodiment of the utility model;

[0031] Figure 3 This is a first cross-sectional view of the lens gripping and fixing device provided in this embodiment of the utility model;

[0032] Figure 4 This is a second cross-sectional view of the lens gripping and fixing device provided in this embodiment of the utility model.

[0033] In the picture:

[0034] 1. Housing; 11. First receiving cavity; 111. Groove; 12. Second receiving cavity; 121. First receiving sub-cavity; 122. Second receiving sub-cavity; 13. Third receiving cavity; 14. Fixing hole;

[0035] 2. Driving component; 21. Driving part; 22. Sealing part; 221. Sealing groove;

[0036] 3. Adsorption fixing component; 31. Fixing part; 32. Adsorption part; 321. Adsorption channel;

[0037] 4. Sealing components; 5. Limiting components; 6. Buffer components; 7. Lens. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] like Figures 1-4 As shown, this embodiment provides a lens gripping and fixing device, which includes a housing 1, a driving member 2, and an adsorption fixing member 3. The housing 1 has a first accommodating cavity 11, a second accommodating cavity 12, and a third accommodating cavity 13, which are connected to each other. The first accommodating cavity 11 can accommodate a lens 7. The driving member 2 is fixedly and sealed in the second accommodating cavity 12 in an adjustable position. The driving member 2 can change the vacuum degree of the second accommodating cavity 12. The adsorption fixing member 3 is connected to the third accommodating cavity 13 and has an adsorption channel 321 that communicates with the second accommodating cavity 12. The adsorption fixing member 3 is configured to grip the lens 7.

[0043] When gripping the lens 7, the lens 7 gripping and fixing device is placed on the lens, so that the lens 7 is housed in the first receiving cavity 11. Then, the position of the driving component 2 in the second receiving cavity 12 is adjusted, thereby changing the gas pressure inside the second receiving cavity 12, thus adjusting the vacuum degree inside the second receiving cavity 12. The adsorption fixing component 3 has an adsorption channel 321, and the adsorption channel 321 is connected to the second receiving cavity 12. When the driving component 2 changes the vacuum degree of the second receiving cavity 12, due to the connection of the adsorption channel 321, the adsorption fixing component 3 will generate a corresponding suction force, thereby gripping the lens 7 in the first receiving cavity 11. At this time, the lens 7 is completely located in the first receiving cavity 11. Through the above settings, the lens 7 is stably housed in the first receiving cavity 11 when gripped, effectively isolating the lens 7 from the external environment, avoiding the lens 7 from being bumped, scratched or damaged during processing or assembly, and ensuring the integrity of the lens 7.

[0044] Optionally, in this embodiment, the first receiving cavity 11, the second receiving cavity 12, and the third receiving cavity 13 are all cylindrical. The cylindrical shape is adapted to the shape of the lens 7. In other embodiments, the first receiving cavity 11 and the second receiving cavity 12 can be square, and the third receiving cavity 13 can be cylindrical, or the first receiving cavity 11, the second receiving cavity 12, and the third receiving cavity 13 can all be square; no limitation is made here.

[0045] Optionally, such as Figure 3 and Figure 4As shown, in this embodiment, the first receiving cavity 11, the second receiving cavity 12, and the third receiving cavity 13 are sequentially connected and coaxially arranged. This makes the structure of the lens gripping and fixing device compact. In other embodiments, the first receiving cavity 11 and the third receiving cavity 13 may be coaxial, while the second receiving cavity 12 and the third receiving cavity 13 may be non-coaxial, etc., and no limitation is made here.

[0046] Optionally, in this embodiment, lens 7 is a laser lens. In other embodiments, lens 7 may also be a glass lens, etc., and there is no limitation herein.

[0047] Furthermore, such as Figure 3 and Figure 4 As shown, the adsorption fixing member 3 includes a fixing part 31 and an adsorption part 32; wherein, the fixing part 31 is connected to the housing 1, the adsorption part 32 is connected to the fixing part 31, the adsorption part 32 and part of the fixing part 31 are housed in the third receiving cavity 13, the adsorption part 32 has an adsorption channel 321, the adsorption channel 321 passes through the adsorption part 32, and the adsorption part 32 can adsorb and fix the lens 7.

[0048] The adsorption part 32 is connected to the fixing part 31, and the fixing part 31 is connected inside the housing 1, so that the position of the adsorption part 32 is fixed, providing a supporting foundation for the adsorption part 32 to grasp the lens 7. At the same time, an adsorption channel 321 is provided on the adsorption part 32. By changing the gas pressure in the adsorption channel 321, the adsorption part 32 can generate a strong adsorption force by utilizing the principle of air pressure difference, thereby firmly grasping the lens 7 contained in the first receiving cavity 11. By setting the fixing part 31 and the adsorption part 32, the grasping and fixing effect of the lens 7 is improved. It should be noted that in this embodiment, the fixing part 31 and the adsorption part 32 are integrally connected.

[0049] Optionally, such as Figure 3 and Figure 4 As shown, in this embodiment, the housing 1 has a fixing hole 14. One end of the fixing part 31 is sealed and connected to the fixing hole 14, and the other end of the fixing part 31 is connected to the adsorption part 32. The adsorption channel 321 passes through the fixing part 31 and the adsorption part 32, connecting the second receiving cavity 12 and the third receiving cavity 13. This arrangement changes the path of the adsorption channel 321, making the path shorter. When the vacuum level of the second receiving cavity 12 is changed, the gas in the adsorption channel 321 can respond quickly, causing the adsorption part 32 to quickly generate suction, thus improving the reliability of the adsorption fixing member 3. It should be noted that in this embodiment, the adsorption channel 321 extends along the axial direction of the first receiving cavity 11, passing through the fixing part 31 and the adsorption part 32.

[0050] Specifically, in this embodiment, such as Figure 3 and Figure 4As shown, the fixing part 31 and the adsorption part 32 are integrally formed and connected. This prevents gas in the adsorption channel 321 from leaking from the connection between the fixing part 31 and the adsorption part 32 when gripping the lens 7, thus improving the gripping effect of the adsorption part 32. In other embodiments, the fixing part 31 and the adsorption part 32 can also be heat-fused together, etc., which is not limited here.

[0051] Optionally, in this embodiment, the adsorption part 32 is a suction cup. The suction cup has high elasticity and good flexibility. Specifically, in this embodiment, the adsorption part 32 is a silicone suction cup. In other embodiments, it can also be a latex suction cup or a graphene suction cup, and there is no limitation here.

[0052] Furthermore, such as Figure 3 and Figure 4 As shown, the driving component 2 includes a driving part 21 and a sealing part 22; wherein, the driving part 21 is fixedly and adjustablely connected to the inner wall of the second receiving cavity 12, and the sealing part 22 can be sealed to the inner wall of the second receiving cavity 12. The driving part 21 and the sealing part 22 are connected in sequence, and the driving part 21 can drive the sealing part 22 to move in the second receiving cavity 12 along the direction from the driving part 21 to the sealing part 22. When grasping the lens 7, the lens 7 is housed in the first receiving cavity 11. The driving unit 21 drives the sealing unit 22 to move within the second receiving cavity 12 along the direction from the driving unit 21 to the sealing unit 22, causing the second receiving cavity 12 to enlarge and increase the vacuum level of the second receiving cavity 12. This, in turn, generates an adsorption force between the adsorption unit 32 and the lens 7, thereby achieving the grasping and fixing of the lens 7. When releasing the lens 7, the driving unit 21 drives the sealing unit 22 to move within the second receiving cavity 12 along the direction from the driving unit 21 to the sealing unit 22, causing the second receiving cavity 12 to shrink and decrease the vacuum level of the second receiving cavity 12. This, in turn, reduces the adsorption force between the adsorption unit 32 and the lens 7. When the sealing unit 22 abuts against the fixing unit 31, the vacuum level of the second receiving cavity 12 becomes zero, thereby releasing the lens 7 housed in the first receiving cavity 11. The driving unit 21 and the sealing unit 22 improve the applicability and flexibility of the lens grasping and fixing device. It should be noted that, in this embodiment, the direction from the driving part 21 to the sealing part 22 is the axial direction of the second receiving cavity 12. The driving part 21 drives the sealing part 22 to move upward along the axial direction of the second receiving cavity 12, thereby increasing the size of the second receiving cavity 12. Specifically, in this embodiment, the driving part 21 is located above the sealing part 22 along the axial direction of the second receiving cavity 12.

[0053] Optionally, such as Figure 3 and Figure 4As shown, in this embodiment, the driving unit 21 drives the sealing unit 22 to move within the second receiving cavity 12 along the axial direction. In other embodiments, the driving unit 21 may also drive the sealing unit 22 to rotate within the second receiving cavity 12 along the axial direction, etc. Any method that can change the vacuum level of the second receiving cavity 12 is acceptable and is not limited here.

[0054] Optionally, such as Figure 3 and Figure 4 As shown, in this embodiment, the drive unit 21 is threadedly connected to the inner wall of the second receiving cavity 12. This arrangement facilitates adjustment and simplifies operation. In other embodiments, the drive unit 21 may also be snapped onto the inner wall of the second receiving cavity 12, etc., and this is not a limitation. It should be noted that in this embodiment, the drive component 2 is an internal hexagonal plug. In other embodiments, the drive component 2 may also be a bolt or a snap-fit ​​plug, and this is not a limitation.

[0055] Furthermore, such as Figure 3 and Figure 4 As shown, the outer wall of the driving member 2 is recessed to form a sealing groove 221, or the inner wall of the second receiving cavity 12 is recessed to form a sealing groove 221. The lens gripping and fixing device also includes a sealing member 4, which is housed within the sealing groove 221 and sandwiched between the outer wall of the driving member 2 and the inner wall of the second receiving cavity 12. This arrangement prevents gas leakage from the second receiving cavity 12 between the driving member 2 and the second receiving cavity 12 when the driving member 2 moves within the second receiving cavity 12, thereby reducing the vacuum level of the second receiving cavity 12, improving its sealing performance, and ensuring the reliability of the lens gripping and fixing device. It should be noted that in this embodiment, the sealing member 4 is an O-ring. In other embodiments, the sealing member 4 can be in other forms, which are not limited here.

[0056] Optionally, such as Figure 3 and Figure 4 As shown, in this embodiment, the outer wall of the driving member 2 is recessed to form a sealing groove 221. In other embodiments, the inner wall of the second receiving cavity 12 may be recessed to form the sealing groove 221, which is not limited here.

[0057] Specifically, such as Figure 3 and Figure 4 As shown, in this embodiment, the outer wall of the sealing part 22 is recessed to form a sealing groove 221. In other embodiments, the outer wall of the driving part 21 may also be recessed to form the sealing groove 221, and this is not a limitation.

[0058] Furthermore, such as Figure 3 and Figure 4As shown, the second receiving cavity 12 includes a first receiving sub-cavity 121 and a second receiving sub-cavity 122. Along the direction perpendicular to the housing 1, the size of the second receiving sub-cavity 122 is greater than or equal to the size of the first receiving sub-cavity 121. With this configuration, when gripping the lens 7, the driving member 2 moves within the second receiving cavity 12, ensuring that the vacuum level of the second receiving cavity 12 is sufficient for the adsorption part 32 to achieve the required adsorption force to grip the lens 7, thereby ensuring the stability and accuracy of the lens 7 gripping process. It should be noted that in this embodiment, the direction perpendicular to the housing 1 is the radial direction of the second receiving cavity 12, that is, the radial dimension of the second receiving sub-cavity 122 is greater than or equal to the radial dimension of the first receiving sub-cavity 121.

[0059] Specifically, such as Figure 3 and Figure 4 As shown, in this embodiment, changing the vacuum level of the second receiving cavity 12 is equivalent to changing the vacuum level of the second receiving sub-cavity 122.

[0060] Optionally, such as Figure 3 and Figure 4 As shown, in this embodiment, along the axial direction of the second receiving cavity 12, the first receiving sub-cavity 121 is located at the upper end of the second receiving sub-cavity 122. It should be noted that in this embodiment, the radial dimension of the second receiving sub-cavity 122 is larger than the radial dimension of the first receiving sub-cavity 121. This further ensures the formation of a vacuum in the second receiving cavity 12. In other embodiments, the radial dimension of the second receiving sub-cavity 122 may also be equal to the radial dimension of the first receiving sub-cavity 121; this is not a limitation.

[0061] Furthermore, the lens gripping and fixing device also includes a limiting member 5, which is connected to the housing 1, and the driving member 2 can abut against the limiting member 5. The above arrangement prevents the driving member 2 from moving unrestricted within the second receiving cavity 12, resulting in a larger vacuum degree in the second receiving cavity 12, which could damage the lens 7 adsorbed by the adsorption fixing member 3, thus ensuring the integrity of the lens 7 and the stability when gripping the lens 7.

[0062] Optionally, such as Figure 3 and Figure 4 As shown, in this embodiment, the limiting member 5 is connected to the end face of the housing 1 away from the first receiving cavity 11. In other embodiments, the limiting member 5 may also be connected inside the second receiving cavity 12 to limit the driving member 2 from inside the second receiving cavity 12, which is not limited here.

[0063] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, the limiting member 5 is a limiting ring, and the inner diameter of the limiting ring is smaller than the outer diameter of the driving part 21. In other embodiments, the limiting member 5 can also be a limiting rod or a limiting plate, which is not limited here, as long as it can limit the distance that the driving member 2 can move upward along the axial direction of the second receiving cavity 12.

[0064] Furthermore, the housing 1 has a groove 111 extending along its direction, and the groove 111 communicates with the first receiving cavity 11. The lens gripping and fixing device also includes a buffer member 6, which is housed within the groove 111, allowing the lens 7 to abut against the buffer member 6. This arrangement provides a buffering effect, preventing damage to the lens 7's adsorption surface during gripping and fixing, thus further ensuring the integrity of the lens 7. It should be noted that in this embodiment, the buffer member 6 is a sealing ring. In other embodiments, the buffer member 6 can also be a buffer strip, etc., and is not limited here.

[0065] Optionally, such as Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, the groove 111 is formed on the top wall of the first receiving cavity 11. The groove 111 is arranged circumferentially along the first receiving cavity 11 and extends upward along the axial direction of the first receiving cavity 11. This arrangement ensures that there is no gap between the lens 7 and the buffer 6 housed in the groove 111, further guaranteeing the buffering effect. In other embodiments, the groove 111 may also be evenly spaced circumferentially along the first receiving cavity 11 and extend upward along the axial direction of the first receiving cavity 11. The goal is simply to achieve a buffering effect when gripping the lens 7; no limitation is imposed here.

[0066] Furthermore, the size of the third receiving cavity 13 is smaller than that of the second receiving cavity 12 in the direction perpendicular to the housing 1. This arrangement avoids the vacuum level formed in the second receiving cavity 12 being insufficient to allow the adsorption part 32 housed in the third receiving cavity 13 to achieve sufficient adsorption force to grasp the lens 7, thus ensuring the reliability of the lens grasping and fixing device.

[0067] Optionally, such as Figure 3 and Figure 4 As shown, in this embodiment, the size of the third receiving cavity 13 is smaller than the size of the second receiving sub-cavity 122 along the radial direction. In other embodiments, the size of the third receiving cavity 13 may also be equal to the size of the second receiving sub-cavity 122 along the radial direction, and this is not a limitation.

[0068] Optionally, such as Figure 3 and Figure 4As shown, in this embodiment, the size of the third receiving cavity 13 is smaller than the size of the first receiving cavity 11 along the radial direction. This ensures that the adsorption part 32 accurately adsorbs the lens 7 into the first receiving cavity 11, guaranteeing the accuracy and stability of the adsorption part 32 in grasping the lens 7. In other embodiments, the size of the third receiving cavity 13 may also be equal to the size of the first receiving cavity 11 along the radial direction. No limitation is imposed here.

[0069] This embodiment also provides a lens replacement device, including a transfer device and a lens gripping and fixing device, wherein the lens gripping and fixing device is disposed on the transfer device. By setting the lens gripping and fixing device, the lens 7 is stably housed in the first receiving cavity 11 when gripped, thereby effectively isolating the lens 7 from the external environment and preventing the lens 7 from being bumped, scratched or damaged during processing or assembly, thus ensuring the integrity of the lens 7.

[0070] The working principle of this utility model is as follows:

[0071] When the lens gripping and fixing device grips the lens 7, it is first placed on the lens 7, so that the lens 7 is housed in the first receiving cavity 11. The drive unit 21 is then rotated, causing it to move upward along the axial direction of the second receiving cavity 12, thereby gradually moving the sealing part 22 away from the third receiving cavity 13, until the sealing part 22 is completely located in the first receiving cavity 121 or the top of the drive unit 21 abuts against the limiting member 5. When the drive unit 2 adjusts the vacuum level in the second receiving cavity 12, the adsorption fixing member 3 set in the third receiving cavity 13 will also perform a corresponding action. The adsorption part 32 will generate an adsorption force according to the vacuum level of the second receiving cavity 12 to adsorb the lens 7, stably adsorbing the lens 7 housed in the first receiving cavity 11, and finally gripping and fixing the lens 7.

[0072] When the lens gripping and fixing device releases the lens 7, the drive part 21 is rotated in the opposite direction, causing the drive part 21 to move downward in the axial direction of the second receiving cavity 12, so that the sealing part 22 gradually approaches the third receiving cavity 13, until part of the drive part 21 is located in the first receiving sub-cavity 121 and part of the sealing part 22 is located in the second receiving sub-cavity 122, and the sealing part 22 abuts against one end of the fixing part 31 of the adsorption fixing member 3, and the bottom surface of the sealing part 22 blocks the adsorption channel 321 to vent the air in the second receiving cavity 12, so that the adsorption part 32 releases the lens 7.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lens gripping fixture, characterized by, The lens grabbing and fixing device comprises a shell (1), a driving member (2), and a suction fixing member (3). The shell (1) is provided with a first accommodating cavity (11), a second accommodating cavity (12), and a third accommodating cavity (13), which are communicated with each other, and the first accommodating cavity (11) is capable of accommodating a lens (7). The driving member (2) is sealingly connected to the second accommodating cavity (12) in an adjustable position, and the driving member (2) is capable of changing the vacuum degree of the second accommodating cavity (12). The suction fixing member (3) is connected to the third accommodating cavity (13), and is provided with a suction passage (321) which is communicated with the second accommodating cavity (12), and the suction fixing member (3) is configured to grab the lens (7).

2. The lens gripping fixture of claim 1, wherein, The suction fixing member (3) comprises a fixing part (31) and a suction part (32). The fixing part (31) is connected to the shell (1), and the suction part (32) is connected to the fixing part (31) and accommodated in the third accommodating cavity (13) together with part of the fixing part (31). The suction part (32) is provided with the suction passage (321) which penetrates through the suction part (32), and the suction part (32) is capable of grabbing the lens (7).

3. The lens gripping fixture of claim 2, wherein, The suction part (32) is a suction disc.

4. The lens gripping fixture of claim 1, wherein, The driving member (2) comprises a driving part (21) and a sealing part (22). The driving part (21) is adjustably connected to the inner wall of the second accommodating cavity (12), and the sealing part (22) is sealingly connected to the inner wall of the second accommodating cavity (12). The driving part (21) and the sealing part (22) are sequentially connected, and the driving part (21) is capable of driving the sealing part (22) to move in the second accommodating cavity (12) along the direction from the driving part (21) to the sealing part (22). The outer wall of the driving member (2) is concave to form a sealing groove (221), or the inner wall of the second accommodating cavity (12) is concave to form the sealing groove (221).

5. The lens gripping fixture of claim 1, wherein The lens grabbing and fixing device further comprises a sealing member (4) which is accommodated in the sealing groove (221) and clamped between the outer wall of the driving member (2) and the inner wall of the second accommodating cavity (12). The second accommodating cavity (12) comprises a first accommodating sub-cavity (121) and a second accommodating sub-cavity (122), and the size of the second accommodating sub-cavity (122) is greater than or equal to the size of the first accommodating sub-cavity (121) in the direction perpendicular to the shell (1).

6. The lens gripping fixture of any of claims 1-5, wherein, The lens grabbing and fixing device further comprises a limiting member (5) which is connected to the shell (1) and capable of abutting against the driving member (2).

7. The lens gripping fixture of any of claims 1-5, wherein, ​ ​ 8. The lens gripping fixture of any of claims 1-5, wherein, The shell (1) is provided with a groove (111) extending along the direction of the shell (1), and the groove (111) is in communication with the first accommodating cavity (11), and the lens grabbing and fixing device further comprises: A buffer member (6) is accommodated in the groove (111), and the lens (7) can abut against the buffer member (6).

9. The lens gripping fixture of any of claims 1-5, wherein, In a direction perpendicular to the extension direction of the shell (1), the size of the third accommodating cavity (13) is smaller than the size of the second accommodating cavity (12).

10. Lens replacement device, characterized in that The lens grabbing and fixing device as claimed in any one of claims 1-9 is arranged on the transplanting device.

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