An optical lens clamp

Abstract

The utility model discloses a kind of optical lens clamps, it is related to optical lens clamp technical field, including base, the base top is fixedly connected with mounting plate, the mounting plate top is equipped with clamping structure;The clamping structure includes the mounting hole being equipped in the side of mounting plate, the spline shaft is rotatably connected in the mounting hole inside, the spline shaft outside is slidably connected with clamping rod.This kind of optical lens clamp, by setting the telescopic rod that penetrates mounting plate in the base top middle, and the telescopic rod telescopic end is fixedly connected with the article plate, can directly pass through the telescopic amount of telescopic rod, drive article plate and top lens move along vertical direction, quickly adapt the demand of different machining procedure to lens height, clamping rod is slidably connected with spline sleeve and spline shaft, ensure that clamping rod always moves along preset track smoothly in rotation and axial sliding process, no jam, offset or shaking, improve the clamping positioning precision of lens.

Description

Technical Field

[0001] This utility model relates to the field of optical lens clamping technology, specifically to an optical lens clamp. Background Technology

[0002] Optical lens clamps are specialized tools used to fix, support, install, or process optical lenses, stabilizing them during processes such as grinding, polishing, and coating.

[0003] Chinese Patent CN220825845U discloses an optical lens grinding fixture, including a base. A fixing frame is fixedly connected to the upper rear side of the base, and a support plate is fixedly connected to the upper end of the fixing frame. A limiting groove is formed near the outer ring of the upper end of the support plate. A gear ring is rotatably connected inside the limiting groove. Multiple arc-shaped clamping plates are provided at the upper end of the support plate, and a gear is provided at the upper end of the fixing frame. In this invention, the bottom end of the lens can be supported by the set placement component, the height of the lens can be adjusted by the set electric telescopic rod, and the servo motor can drive the gear to rotate, thereby driving the gear ring to rotate, which in turn drives the limiting rod to move. The limiting rod can slide in the groove in the corresponding arc-shaped clamping plate, so that the arc-shaped clamping plate rotates through the rotating shaft to clamp the side of the lens, which can prevent the lens from shifting during grinding.

[0004] The optical lens processing process has different requirements for the height of the optical lens. Traditional fixtures often lack a convenient height adjustment structure, making it difficult to quickly adapt the lens height to the processing needs. Some components need to be disassembled or reassembled for adjustment, which is complicated. If traditional fixtures lack a reliable self-locking mechanism, the clamping structure is prone to loosening under the influence of external forces, causing the lens position to shift and affecting the processing accuracy. Utility Model Content

[0005] The purpose of this utility model is to provide an optical lens fixture to solve the problem in the above-mentioned background art where different height requirements exist for optical lenses during optical lens processing, and traditional fixtures often lack a convenient height adjustment structure, making it difficult to quickly adapt the lens height to processing needs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an optical lens clamp, comprising a base, wherein a mounting plate is fixedly connected to the top of the base, and a clamping structure is mounted on the top of the mounting plate;

[0007] The clamping structure includes a mounting hole on the side of the mounting plate, a spline shaft is rotatably connected inside the mounting hole, a clamping rod is slidably connected to the outside of the spline shaft, a telescopic rod that passes through the mounting plate is fixedly connected to the top center of the base, and a storage plate is fixedly connected to the telescopic end of the telescopic rod.

[0008] Preferably, there are two clamping rods, and each of the two clamping rods has a spline sleeve at one end near the spline shaft. The clamping rods are sleeved on the outside of the spline shaft through the spline sleeve.

[0009] Preferably, a guide rod is fixedly connected to one end of the two clamping rods away from the spline sleeve, and the guide rod and the two clamping rods form an inverted U-shaped structure.

[0010] Preferably, the shelf has an arc-shaped guide groove inside, the center of the circle containing the arc of the guide groove coincides with the axis of the spline shaft, the guide rod is slidably connected inside the guide groove, and the clamping rod and the guide rod are equidistantly distributed in an integral ring on the guide groove.

[0011] Preferably, an annular guide rail is fixedly connected to the top edge of the mounting plate, and a drive ring is rotatably connected inside the annular guide rail, with a notch on one side of the annular guide rail.

[0012] Preferably, the inner side of the drive ring is provided with internal gear teeth, and the lower end of the spline shaft is fixedly connected with a gear, which meshes with the inner side of the drive ring.

[0013] Preferably, the drive ring has equally spaced helical teeth on its outer side, and the drive ring and the helical teeth form a worm gear structure. A worm is rotatably connected to one side of the annular guide rail through a bearing seat, and the worm meshes with the drive ring and the helical teeth to form a worm gear structure through a notch on one side of the annular guide rail. A rotating handle is fixedly connected to the end of the worm.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This optical lens clamp features a telescopic rod that penetrates the mounting plate at the top center of the base. The telescopic end of the rod is fixedly connected to the placement plate. By adjusting the telescopic rod's extension, the placement plate and the top lens can be moved vertically, quickly adapting to the lens height requirements of different processing steps. The clamping rod is slidably connected to the spline shaft via a spline sleeve, ensuring that the clamping rod moves smoothly along a preset trajectory during rotation and axial sliding without jamming, offset, or shaking, thus improving the lens clamping and positioning accuracy.

[0016] The worm gear transmission, consisting of a worm, a drive ring, and helical teeth, utilizes the inherent self-locking characteristic of worm gear transmission. After the lens is clamped, even under external forces such as vibration and grinding during processing, the drive ring is not prone to reverse rotation, thus ensuring that the clamping rod will not loosen.

[0017] By having the inner gear teeth on the inner side of the drive ring mesh with the gears at the lower ends of multiple spline shafts simultaneously, when the drive ring rotates, it can synchronously drive all spline shafts to rotate at the same speed. In turn, the spline sleeve drives each clamping rod to move synchronously along the guide groove, so that the clamping force is evenly distributed at each contact point on the edge of the lens, avoiding lens chipping and breakage caused by uneven clamping force. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the storage board of this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping rod structure of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the mounting plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the drive ring structure of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Base; 2. Mounting plate; 3. Telescopic rod; 4. Mounting hole; 5. Splined shaft; 6. Clamping rod; 7. Splined sleeve; 8. Guide rod; 9. Shelf; 10. Guide groove; 11. Circular guide rail; 12. Drive ring; 13. Internal gear tooth; 14. Gear; 15. Rotating handle; 16. Helical gear; 17. Worm gear. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1 to 6 The present invention provides the following technical solution:

[0027] like Figure 1As shown, an optical lens clamp includes a base 1, a mounting plate 2 fixedly connected to the top of the base 1, and a clamping structure mounted on the top of the mounting plate 2. The clamping structure includes a mounting hole 4 on the side of the mounting plate 2, a spline shaft 5 rotatably connected inside the mounting hole 4, a clamping rod 6 slidably connected to the outside of the spline shaft 5, and a telescopic rod 3 that passes through the mounting plate 2 fixedly connected to the middle of the top of the base 1. A storage plate 9 is fixedly connected to the telescopic end of the telescopic rod 3.

[0028] like Figure 3 As shown, there are two clamping rods 6. Each clamping rod 6 has a spline sleeve 7 at one end near the spline shaft 5. The clamping rod 6 is sleeved on the outside of the spline shaft 5 through the spline sleeve 7. A guide rod 8 is fixedly connected to the end of the two clamping rods 6 away from the spline sleeve 7. The guide rod 8 and the two clamping rods 6 form a U-shaped structure.

[0029] like Figure 2 As shown, the shelf 9 has an arc-shaped guide groove 10 inside. The center of the arc of the guide groove 10 coincides with the axis of the spline shaft 5. The guide rod 8 is slidably connected inside the guide groove 10, and the clamping rod 6 and the guide rod 8 are equidistantly distributed in an integral ring on the guide groove 10.

[0030] like Figure 4 As shown, an annular guide rail 11 is fixedly connected to the top edge of the mounting plate 2. A drive ring 12 is rotatably connected inside the annular guide rail 11. A notch is provided on one side of the annular guide rail 11.

[0031] like Figure 5 and Figure 6 As shown, the inner side of the drive ring 12 is provided with inner gear teeth 13, and the lower end of the spline shaft 5 is fixedly connected with a gear 14, which meshes with the inner side of the drive ring 12; the outer side of the drive ring 12 is provided with helical teeth 16 distributed at equal intervals, and the drive ring 12 and the helical teeth 16 form a worm gear structure. One side of the annular guide rail 11 is rotatably connected to a worm 17 through a bearing seat, and the worm 17 meshes with the drive ring 12 and the helical teeth 16 through a notch on one side of the annular guide rail 11 to form a worm gear structure. The end of the worm 17 is fixedly connected with a rotating handle 15.

[0032] In the initial state, the optical lens to be processed is placed on the top of the placement plate 9. Depending on the height requirements of different processing steps such as grinding, polishing or coating, the telescopic rod 3, which is fixedly connected to the middle of the top of the adjustable base 1 and passes through the mounting plate 2, is adjusted so that the telescopic end of the telescopic rod 3 drives the placement plate 9 to move vertically to the appropriate processing height.

[0033] When it is necessary to clamp and fix the lens, the operator rotates the rotating handle 15 fixedly connected to the end of the worm gear 17. Rotating the handle 15 drives the worm gear 17 to rotate around its own axis. Since the worm gear 17 meshes with the worm wheel structure formed by the drive ring 12 and the helical teeth 16 evenly distributed on the outer side of the drive ring 12 through the notch on one side of the annular guide rail 11, the rotation of the worm gear 17 will be converted into the circular motion of the drive ring 12. This allows the drive ring 12 to rotate smoothly around the central axis of the annular guide rail 11 fixedly connected to the top edge of the mounting plate 2. As the drive ring 12 rotates, the inner gear teeth 13 provided on its inner side mesh with the gear 14 fixedly connected to the lower end of the spline shaft 5, thereby driving the spline shaft 5 to rotate around its own axis inside the mounting hole 4 provided on the side of the mounting plate 2.

[0034] Two clamping rods 6 are provided, and the ends of the two clamping rods 6 near the spline shaft 5 are both sleeved on the outside of the spline shaft 5 through spline sleeves 7. The rotation of the spline shaft 5 will drive the clamping rods 6 to rotate synchronously through the spline sleeves 7. The ends of the two clamping rods 6 away from the spline sleeves 7 are fixedly connected to guide rods 8. The guide rods 8 are slidably connected in the arc-shaped guide groove 10 provided inside the shelf 9, and the center of the arc of the guide groove 10 coincides with the axis of the spline shaft 5. This allows the clamping rods 6 to rotate with the spline shaft 5 under the rotation drive of the spline shaft 5. At the same time, the clamping rods 6 slide along the axial direction of the spline shaft 5, and the guide rods 8 slide smoothly along the arc-shaped trajectory of the guide groove 10.

[0035] Since the clamping rods 6 and the guide rods 8 are equidistantly distributed in an integral ring on the guide groove 10, the above movement eventually drives the C-shaped structure formed by the two clamping rods 6 and the guide rods 8 to move synchronously toward the center of the placement plate 9 until it comes into close contact with the outer wall of the lens, thereby achieving stable clamping and fixing of the lens.

[0036] Once the lens is processed, rotating the handle 15 in the opposite direction will cause the clamping rod 6 to move away from the center of the lens through the aforementioned transmission path, thereby releasing the clamp on the lens so that the operator can remove the processed lens.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optical lens clamp, comprising a base (1), wherein a mounting plate (2) is fixedly connected to the top of the base (1), and a clamping structure is mounted on the top of the mounting plate (2); Its features are: The clamping structure includes a mounting hole (4) on the side of the mounting plate (2), a spline shaft (5) is rotatably connected inside the mounting hole (4), a clamping rod (6) is slidably connected to the outside of the spline shaft (5), and a telescopic rod (3) that passes through the mounting plate (2) is fixedly connected to the top center of the base (1), and a storage plate (9) is fixedly connected to the telescopic end of the telescopic rod (3).

2. The optical lens clamp according to claim 1, characterized in that: Two clamping rods (6) are provided, and a spline sleeve (7) is provided at one end of each clamping rod (6) near the spline shaft (5). The clamping rod (6) is sleeved on the outside of the spline shaft (5) through the spline sleeve (7).

3. The optical lens clamp according to claim 2, characterized in that: The two clamping rods (6) are fixedly connected to a guide rod (8) at the end away from the spline sleeve (7), and the guide rod (8) and the two clamping rods (6) form a U-shaped structure.

4. The optical lens clamp according to claim 3, characterized in that: The storage plate (9) has an arc-shaped guide groove (10) inside. The center of the arc of the guide groove (10) coincides with the axis of the spline shaft (5). The guide rod (8) is slidably connected inside the guide groove (10), and the clamping rod (6) and the guide rod (8) are equidistantly distributed in an integral ring on the guide groove (10).

5. An optical lens clamp according to claim 1, characterized in that: An annular guide rail (11) is fixedly connected to the top edge of the mounting plate (2). A drive ring (12) is rotatably connected inside the annular guide rail (11). A notch is provided on one side of the annular guide rail (11).

6. An optical lens clamp according to claim 5, characterized in that: The inner side of the drive ring (12) is provided with an inner gear tooth (13), and the lower end of the spline shaft (5) is fixedly connected with a gear (14), which meshes with the inner side of the drive ring (12).

7. An optical lens clamp according to claim 6, characterized in that: The drive ring (12) has equally spaced helical teeth (16) on its outer side, and the drive ring (12) and the helical teeth (16) form a worm gear structure. A worm (17) is rotatably connected to one side of the annular guide rail (11) through a bearing seat. The worm (17) meshes with the drive ring (12) and the helical teeth (16) through a notch on one side of the annular guide rail (11) to form a worm gear structure. A rotating handle (15) is fixedly connected to the end of the worm (17).

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