Lens carrier in-lens support clamp

Abstract

This invention discloses an internal support clamp for lens carriers, comprising a bracket, a drive shaft, a base block, a first contouring clamp, and a second contouring clamp. A connector is located at the bottom of the bracket. A first linear bearing and a pressure block are mounted on the bracket. The drive shaft passes through the bracket and the connector, and a return spring connects the drive shaft and the bracket. The base block is mounted at the end of the connector. A second and third linear bearings are installed inside the base block. The first contouring clamp is mounted on the outside of the base block and connected to the second linear bearing via a first guide rod. The first contouring clamp is connected to the drive shaft via a first rocker arm. The second contouring clamp is mounted on the outside of the base block and arranged opposite to the first contouring clamp. It is connected to the third linear bearing via a second guide rod and connected to the drive shaft via a second rocker arm. This invention enables batch handling of lens carriers, avoiding direct human contact with the lens carriers and helping to ensure the cleanliness of the lens carriers.

Description

Technical Field

[0001] This invention relates to the field of lens processing technology, and in particular to an internal support clamp for a lens carrier. Background Technology

[0002] In lens processing, especially in the processing of VR lenses (such as testing and assembly), to improve processing efficiency, lenses need to be placed in lens carriers to achieve automated feeding and thus automated production. However, lens processing requires a high degree of cleanliness. If the lens carriers are handled manually, they are easily contaminated, failing to meet the cleanliness requirements of lens processing. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an internal support clamp for lens carriers, which enables batch handling of lens carriers, avoids direct human contact with the lens carriers, and helps ensure the cleanliness of the lens carriers.

[0004] This invention provides a lens carrier internal support clamp, comprising: The bracket has a hollow connector at the bottom, a first linear bearing is installed on the bracket and inside the connector, and pressure blocks are provided on the bracket and on opposite sides of the connector. A drive shaft passes through the bracket and the connector, and a return spring is connected between the drive shaft and the bracket. The length of the drive shaft extends along a first direction. A base block is installed at the end of the connector, and a second linear bearing and a third linear bearing extending along a second direction are installed inside the base block, the second direction being perpendicular to the first direction. The first contour clamping member is installed on the outside of the base block and is connected to the second linear bearing through the first guide rod. The first contour clamping member is connected to the drive shaft through the first rocker arm. The second contour clamping member is installed on the outside of the base block and arranged opposite to the first contour clamping member. It is connected to the third linear bearing through the second guide rod. The second contour clamping member is connected to the drive shaft through the second rocker arm.

[0005] According to some embodiments of the present invention, a clearance hole is provided on the bottom block at a position adapted to the end of the drive shaft, and a guide sleeve is installed in the clearance hole.

[0006] According to some embodiments of the present invention, the end face of the first contouring clamp and the end face of the second contouring clamp are located in the same plane, and there is a preset height difference between the end face of the first contouring clamp and the end face of the bottom block.

[0007] According to some embodiments of the present invention, the first contouring clamping member includes a movable block and a contouring block, wherein a first surface of the movable block is connected to the first guide rod, and the contouring block is mounted on a second surface of the movable block.

[0008] According to some embodiments of the present invention, the second side of the movable block is provided with an assembly groove, and a locking hole is provided on the movable block and located in the assembly groove. The contour block is installed in the assembly groove and is connected to the locking hole by fasteners.

[0009] According to some embodiments of the present invention, the contour block has an embedding part, a contouring part, and a guide limiting part. The first surface of the embedding part is fitted into the assembly groove. The contouring part and the guide limiting part are disposed adjacent to each other on the second surface of the embedding part. There is a preset height difference between the end face of the guide limiting part and the end face of the embedding part, and the end face of the guide limiting part is flush with the end face of the movable block.

[0010] According to some embodiments of the present invention, the guide limiting part is a partial sidewall of a frustum structure.

[0011] According to some embodiments of the present invention, the movable block is provided with a connecting protrusion, the connecting protrusion is provided with a connecting hole, and the connecting protrusion is connected to the first rocker arm through the connecting hole.

[0012] According to some embodiments of the present invention, the first contouring clamp and the second contouring clamp have the same structure or are mirror-symmetrical.

[0013] According to some embodiments of the present invention, a handle is connected to the end of the drive shaft, and a movable guide rod is connected between the handle and the bracket.

[0014] The embodiments of the present invention have at least the following beneficial effects: In use, the base block, the first contour clamping member, and the second contour clamping member extend into multiple stacked lens carriers. The drive shaft drives the first and second contour clamping members to move in opposite directions via the first and second rockers, thereby changing the distance between the first and second contour clamping members. This allows the lens carriers to be clamped from the inside, enabling batch handling of the lens carriers. This avoids direct contact between human hands and the lens carriers, which helps ensure the cleanliness of the lens carriers.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the lens carrier internal support clamp according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the exploded structure of the lens carrier's internal support clamp. Figure 3 for Figure 1 A side view of the lens carrier internal support clamp shown; Figure 4 for Figure 3 A cross-sectional view at position AA in the middle; Figure 5 for Figure 4 The center circle shows a magnified view of position B. Figure 6 for Figure 1 A schematic diagram of the movable block of the lens carrier's internal support clamp is shown. Figure 7 for Figure 1 A schematic diagram of the contour block of the lens carrier internal support clamp is shown; Figure 8 This is the second schematic diagram of the internal support clamp of the lens carrier according to an embodiment of the present invention.

[0017] Figure label: The components include: bracket 100, connector 110, first linear bearing 120, pressure block 130, handle 140, movable guide rod 150, drive shaft 200, return spring 210, first rocker arm 220, second rocker arm 230, base block 300, clearance hole 301, second linear bearing 310, third linear bearing 320, first guide rod 330, second guide rod 340, first contour clamping component 400, movable block 410, assembly groove 411, locking hole 412, connecting protrusion 413, connecting hole 414, contour block 420, embedding part 421, contour part 422, guide limiting part 423, and second contour clamping component 500. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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 limiting this invention.

[0020] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number, and "above," "below," "within," etc. are understood to include the stated number. If "first," "second," etc. are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0021] In the description of this invention, unless otherwise explicitly defined, terms such as "set", "install", and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] The lens carrier is disc-shaped with a central through-hole for accommodating the lens. Multiple lens carriers need to be stacked longitudinally and transported to the corresponding equipment's loading frame during use. The stacked carriers form a columnar structure, and the loading frame has structural limitations. Manually handling these stacked carriers not only easily leads to contamination but also makes it difficult to handle them gently due to the frame's structural constraints, potentially causing impacts, tilting, or misalignment.

[0023] Please refer to Figure 1 and Figure 2This embodiment discloses a lens carrier internal support clamp, including a bracket 100, a drive shaft 200, a base block 300, a first contour clamping member 400, and a second contour clamping member 500. A hollow connector 110 is provided at the bottom of the bracket 100. The connector 110 can be a cylindrical structure or a frame structure. A first linear bearing 120 is installed on the bracket 100 and inside the connector 110. Pressure blocks 130 are provided on the bracket 100 and on opposite sides of the connector 110. The drive shaft 200 passes through the bracket 100 and the connector 110. A return spring 210 is connected between the drive shaft 200 and the bracket 100. When the drive shaft 200 moves axially, the return spring 210 provides a return force to the drive shaft 200. The length of the drive shaft 200 extends along a first direction. The base block 300 is installed at the end of the connector 110. A second linear bearing 310 and a third linear bearing 320 extending along a second direction are installed inside the base block 300. The second direction and the first direction are perpendicular to each other. For example, the first direction indicates the axial direction of the drive shaft 200, and the second direction indicates the radial direction of the drive shaft 200. The first contour clamping member 400 is installed on the outside of the base block 300 and connected to the second linear bearing 310 via the first guide rod 330. The first contour clamping member 400 is connected to the drive shaft 200 via the first rocker arm 220. The second contour clamping member 500 is installed on the outside of the base block 300 and arranged opposite to the first contour clamping member 400. It is connected to the third linear bearing 320 via the second guide rod 340. The second contour clamping member 500 is connected to the drive shaft 200 via the second rocker arm 230.

[0024] For example, the base block 300 has a cuboid structure. The second linear bearing 310 and the third linear bearing 320 are respectively installed in the base block 300. The first contour clamping member 400 and the second contour clamping member 500 are respectively installed on opposite sides of the base block 300. The first end of the first guide rod 330 is connected to the first contour clamping member 400, and the second end of the first guide rod 330 is movably inserted into the second linear bearing 310. Similarly, the first end of the second guide rod 340 is connected to the second contour clamping member 500, and the second end of the second guide rod 340 is movably inserted into the second linear bearing 310. Since the first contouring clamping member 400 and the second contouring clamping member 500 are connected to the drive shaft 200 via the first rocker arm 220 and the second rocker arm 230 respectively, when the drive shaft 200 moves towards the base block 300, the drive shaft 200 applies pressure to the first contouring clamping member 400 and the second contouring clamping member 500 via the first rocker arm 220 and the second rocker arm 230 respectively. Under the guidance of the first guide rod 330 and the second linear bearing 310, the first contouring clamping member 400 moves outward in the radial direction of the drive shaft 200. Similarly, under the guidance of the second guide rod 340 and the third linear bearing 320, the second contouring clamping member 500 moves outward in the radial direction of the drive shaft 200, that is, the first contouring clamping member 400 and the second contouring clamping member 500 move in opposite directions. In this way, the axial movement of the drive shaft 200 can be converted into the radial movement of the first contouring clamping member 400 and the second contouring clamping member 500, thereby changing the direction of movement.

[0025] In use, multiple lens carriers are stacked together upon arrival. The base block 300, the first contour clamping member 400, and the second contour clamping member 500 extend into the stacked lens carriers. The drive shaft 200 drives the first contour clamping member 400 and the second contour clamping member 500 to move in opposite directions via the first rocker arm 220 and the second rocker arm 230, thereby changing the distance between them. This clamps the lens carriers from the inside. The pressure block 130 abuts and fixes the topmost (adjacent) lens carrier, preventing it from shaking during transport. This enables batch handling of lens carriers and avoids direct human contact, ensuring cleanliness. The pressure block 130 is a flexible component, such as a structural component made of urethane, sponge, or soft plastic. It should be noted that the bracket 100 can be mounted on an industrial robot to serve as the end effector of the robot, enabling automated handling of the lens carrier.

[0026] Please refer to Figure 3 , Figure 4 and Figure 5A clearance hole 301 is provided on the base block 300 at a position adapted to the end of the drive shaft 200, and a guide sleeve is installed in the clearance hole 301. The drive shaft 200 is partially inserted into the guide sleeve. When the drive shaft 200 moves towards the base block 300, the guide sleeve can avoid and guide the end of the drive shaft 200, so that the drive shaft 200 can move smoothly and avoid shaking during the movement, thereby effectively driving the first rocker arm 220 and the second rocker arm 230.

[0027] Please continue to refer to Figure 5 The end faces of the first contouring clamp 400 and the second contouring clamp 500 are located in the same height plane, and there is a preset height difference between the end face of the first contouring clamp 400 and the end face of the base block 300 (e.g., Figure 5 (As shown by label H1). In use, the axial direction of the drive shaft 200 is vertical. When the first contouring clamp 400, the second contouring clamp 500, and the base block 300 are inserted into the assembled lens carrier, the end face of the base block 300 abuts against the worktable where the lens carrier is located. At this time, taking the plane of the worktable as the reference plane, the end face of the base block 300 is in contact with the reference plane. It can also be understood that the height difference between the end face of the base block 300 and the reference plane is zero. However, the first contouring clamp 400 and the second contouring clamp 500 have a non-zero height difference relative to the reference plane, and the height difference of the first contouring clamp 400 is equal to or nearly equal to the height difference of the second contouring clamp 500 (unavoidable errors may occur during processing or assembly, but the errors are within the allowable range). In this way, the first contouring clamp 400 and the second contouring clamp 500 can avoid contact with the worktable, thus eliminating the friction caused by contact with the worktable and allowing the first contouring clamp 400 and the second contouring clamp 500 to move more smoothly along the second direction.

[0028] Please refer to Figure 5 , Figure 6 and Figure 7 The first contouring clamping member 400 includes a movable block 410 and a contouring block 420. The first surface of the movable block 410 is connected to the first guide rod 330, and the contouring block 420 is mounted on the second surface of the movable block 410. It should be noted that the first and second surfaces of the movable block 410 are two opposing surfaces. The movable block 410 is a rigid structural member, providing sufficient mechanical strength, while the contouring block 420 is a flexible structural member, ensuring flexible contact with the lens carrier and preventing damage to the lens carrier during contact.

[0029] Please refer to Figure 6The movable block 410 has a mounting groove 411 on its second side, and a locking hole 412 is provided on the movable block 410 within the mounting groove 411. The contour block 420 is installed within the mounting groove 411 and is connected to the locking hole 412 by fasteners. During assembly, the contour block 420 is embedded in the mounting groove 411, which can play a role in coarse positioning and initial limiting of the contour block 420 during assembly. The cooperation between the fasteners and the locking hole 412 can lock and fix the movable block 410 and the contour block 420. For example, the locking hole 412 can be a threaded hole, and the fastener can be a threaded part such as a bolt or screw; or, the locking hole 412 can be a through hole or a stepped hole, and the fastener can be a rivet or a pin.

[0030] Please refer to Figure 7 The contour block 420 has an insert portion 421, a contour portion 422, and a guide limiting portion 423. The first surface of the insert portion 421 is fitted into the assembly groove 411. The contour portion 422 and the guide limiting portion 423 are disposed adjacent to each other on the second surface of the insert portion 421. There is a preset height difference between the end face of the guide limiting portion 423 and the end face of the insert portion 421 (e.g., ...). Figure 5 (As shown by the numeral H2), and the end face of the guide limiting part 423 is flush with the end face of the movable block 410. The contouring part 422 has a shape adapted to the inner side of the lens carrier. For example, the contouring part 422 is an arc-shaped structure. In use, the contouring part 422 is located above the guide limiting part 423. The contouring part 422 can apply pressure to the inner wall of the lens carrier, while the guide limiting part 423 can guide and limit the lower edge of the inner wall of the lens carrier, thereby providing upward support to the lens carrier. For example, the guide limiting part 423 is a partial sidewall of a frustum structure. For example, the upper end of the guide part has a first arc segment, and the lower end of the guide part has a second arc segment. The centers of the first arc segment and the second arc segment are on the same vertical line, and the radius of the first arc segment is smaller than the radius of the second arc segment. In this way, an inclined frustum sidewall structure can be formed between the first arc segment and the second arc segment. When the guide limiting part 423 abuts against the inner lower edge of the lens carrier, the frustum sidewall structure can apply radial pressure and axial upward pressure to the lens carrier, thereby fixing the lens carrier. In addition, the end face of the guide limiting part 423 is flush with the end face of the movable block 410, which allows the guide limiting part 423 to make full contact with the lens carrier, thereby providing good support for the lens carrier.

[0031] Please refer to Figure 6 The movable block 410 is provided with a connecting protrusion 413, and a connecting hole 414 is provided on the connecting protrusion 413. The connecting protrusion 413 is connected to the first rocker arm 220 through the connecting hole 414. The opposite sides of the connecting protrusion 413 are clearance spaces, which can clear the movement trajectory of the first rocker arm 220, thereby allowing the first rocker arm 220 to move smoothly.

[0032] The first contouring clamp 400 and the second contouring clamp 500 have the same structure or are mirror-symmetrical. For example, the first contouring clamp 400 and the second contouring clamp 500 have the same structure, which can reduce the difficulty of design, processing and assembly of materials and facilitate production and processing; or, the first contouring clamp 400 and the second contouring clamp 500 have mirror-symmetrical structures. For example, the first contouring clamp 400 is provided with a first hole connected to the first guide rod 330, and the second contouring clamp 500 is provided with a second hole connected to the second guide rod 340. The positions of the first hole and the second hole are mirror-symmetrical.

[0033] In the above solution, the lens carrier internal support fixture can be used as the end effector of an industrial robot. For different application scenarios, please refer to... Figure 8 A handle 140 is connected to the end of the drive shaft 200. A movable guide rod 150 is connected between the handle 140 and the bracket 100. In use, the bracket 100 can be manually held and pressure can be applied to the drive shaft 200 through the handle 140, thereby driving the first contour clamp 400 and the second contour clamp 500 to move. This can adapt to application scenarios of manual operation and meet the application needs of different scenarios.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A lens carrier internal support clamp, characterized in that, include: A bracket (100) has a hollow connector (110) at its bottom. A first linear bearing (120) is installed on the bracket (100) and inside the connector (110). Pressure blocks (130) are provided on the bracket (100) and on opposite sides of the connector (110). A drive shaft (200) passes through the bracket (100) and the connector (110), and a return spring (210) is connected between the drive shaft (200) and the bracket (100). The length of the drive shaft (200) extends along a first direction. A base block (300) is installed at the end of the connector (110), and a second linear bearing (310) and a third linear bearing (320) extending along a second direction are installed inside the base block (300), the second direction being perpendicular to the first direction; A first contouring clamping member (400) is installed on the outside of the base block (300) and connected to the second linear bearing (310) via a first guide rod (330). The first contouring clamping member (400) is connected to the drive shaft (200) via a first rocker arm (220). The first contouring clamping member (400) includes a movable block (410) and a contouring block (420). The first surface of the movable block (410) is connected to the first guide rod (330), and the contouring block (420) is installed on the second surface of the movable block (410). The second surface of the movable block (410) is provided with an assembly groove (411), and a [missing information] is provided on the movable block (410) and located within the assembly groove (411). Locking hole (412), the contour block (420) is installed in the assembly groove (411) and is connected to the locking hole (412) by fasteners; the contour block (420) has an embedding part (421), a contouring part (422) and a guide limiting part (423), the first surface of the embedding part (421) is embedded in the assembly groove (411), the contouring part (422) and the guide limiting part (423) are arranged adjacent to each other on the second surface of the embedding part (421), there is a preset height difference between the end face of the guide limiting part (423) and the end face of the embedding part (421), and the end face of the guide limiting part (423) is flush with the end face of the movable block (410); The second contour clamping member (500) is installed on the outside of the base block (300) and arranged opposite to the first contour clamping member (400), and is connected to the third linear bearing (320) through the second guide rod (340). The second contour clamping member (500) is connected to the drive shaft (200) through the second rocker arm (230).

2. The lens carrier internal support clamp according to claim 1, characterized in that, A clearance hole (301) is provided on the bottom block (300) at a position that matches the end of the drive shaft (200), and a guide sleeve is installed in the clearance hole (301).

3. The lens carrier internal support clamp according to claim 1, characterized in that, The end face of the first contouring clamp (400) and the end face of the second contouring clamp (500) are located in the same plane, and there is a preset height difference between the end face of the first contouring clamp (400) and the end face of the bottom block (300).

4. The lens carrier internal support clamp according to claim 1, characterized in that, The guide limiting part (423) is a partial sidewall of a frustum structure.

5. The lens carrier internal support clamp according to claim 1, characterized in that, The movable block (410) is provided with a connecting protrusion (413), and the connecting protrusion (413) is provided with a connecting hole (414). The connecting protrusion (413) is connected to the first rocker (220) through the connecting hole (414).

6. The lens carrier internal support clamp according to claim 1, 4 or 5, characterized in that, The first contour clamp (400) and the second contour clamp (500) have the same structure or are mirror images of each other.

7. The lens carrier internal support clamp according to any one of claims 1 to 5, characterized in that, A handle (140) is connected to the end of the drive shaft (200), and a movable guide rod (150) is connected between the handle (140) and the bracket (100).

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