Circular lens clamping mechanism

Abstract

The utility model discloses a circular lens clamping mechanism which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a supporting block used for placing a lens, the upper surface of the bottom plate is provided with a plurality of mounting holes, sliding barrels are fixedly connected in the mounting holes, the top ends of the sliding barrels are fixedly connected with suction cups, and the suction cups are fixedly connected with the bottom plate. The bottom of the bottom plate is fixedly connected with a tension spring, the bottom end of the tension spring is fixedly connected with a fixing plate, the top of the fixing plate is fixedly connected with a plurality of connecting rods, the connecting rods extend into the sliding barrels correspondingly, the top ends of the connecting rods are fixedly connected with piston blocks, and the piston blocks vertically move in the sliding barrels. Connecting assemblies enabling the fixing plate to move downwards are arranged on the two sides of the fixing plate. According to the clamping mechanism, thin lenses can be stably clamped, the use stability of the clamping mechanism is improved, the lenses with different thicknesses can be pressed by the pressing block, and the use effect of the clamping mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to a circular lens clamping mechanism. Background Art

[0002] A lens is a transparent material with one or more curved surfaces, which can correct eyesight, protect eye safety or clinically treat eye diseases by adjusting the light entering the eyes.

[0003] After retrieval, a Chinese patent with the publication number CN220446182U discloses a lens clamping device for sunglasses processing, including a base. Two vertical plates are arranged on the top of the base, enabling a lead screw to move horizontally, and enabling the vertical plate of the installation fixing plate one to move horizontally to clamp the lens of the sunglasses. However, there are still the following defects. When clamping a relatively thin lens, due to the small contact area between the fixture and the lens, the lens clamping is unstable. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a circular lens clamping mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A circular lens clamping mechanism includes a bottom plate. A support block for placing the lens is fixedly connected to the upper surface of the bottom plate. A plurality of mounting holes are opened on the upper surface of the bottom plate. Slide cylinders are fixedly connected in the plurality of mounting holes. A suction cup is fixedly connected to the top end of the slide cylinder. A tension spring is fixedly connected to the bottom of the bottom plate. The bottom end of the tension spring is fixedly connected to a fixing plate. A plurality of connecting rods are fixedly connected to the top of the fixing plate. The plurality of connecting rods respectively extend into the plurality of slide cylinders. The top ends of the plurality of connecting rods are fixedly connected with piston blocks, enabling the piston blocks to move vertically inside the slide cylinders. Connecting components for moving the fixing plate downward are arranged on both sides of the fixing plate. Two symmetrically distributed groove bodies are opened on the upper surface of the bottom plate. Slide plates are slidably connected in the two groove bodies. A one-way threaded rod is rotatably connected to the top of the slide plate. A clamping plate is threadedly connected to the circumferential outer wall of the one-way threaded rod. A pressing block is fixedly connected to one side of the clamping plate at the top position. A guiding component for moving the clamping plate vertically is arranged on the top of the slide plate. A driving component for moving the slide plate is arranged in the two groove bodies.

[0007] As a further scheme of the utility model, the driving component is a bidirectional threaded rod. The bidirectional threaded rod is rotatably connected in the two groove bodies, and the bidirectional threaded rod penetrates through the bottom plate. The bidirectional threaded rod penetrates through the two slide plates and is threadedly connected with the two slide plates.

[0008] As a further solution of the present utility model, knobs for rotating the bidirectional threaded rod are fixedly connected to both ends of the bidirectional threaded rod.

[0009] As a further solution of the present utility model, the connecting component includes two connecting blocks. The two connecting blocks are respectively fixedly connected to both sides of the fixed plate. The two connecting blocks are both parallelograms. Two chutes are provided on the upper surfaces of the two connecting blocks. Ball bearings are rotatably connected to the bottom of the sliding plate, and the ball bearings roll along the chutes.

[0010] As a further solution of the present utility model, the guiding components are two guiding rods. The two guiding rods are both fixedly connected to the top of the sliding plate. Two sliding holes are provided at the bottom of the clamping plate. The two guiding rods respectively extend into the two sliding holes, enabling the clamping plate to move vertically.

[0011] As a further solution of the present utility model, a plurality of floor feet for supporting the bottom plate are fixedly connected to the bottom of the bottom plate.

[0012] As a further solution of the present utility model, rubber pads are fixedly connected to one side of the clamping plate and the pressing block.

[0013] As a further solution of the present utility model, the top of the supporting block is flush with the top of the suction cup.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. Through the combined use of the suction cup, the clamping plate and the pressing block, when using the clamping block to clamp and fix the lens, the suction cup will adsorb the lens, and at the same time, the lens can be pressed by the pressing block, so as to stably clamp the thinner lens, improving the stability of the clamping mechanism.

[0016] 2. Through the setting of the unidirectional threaded rod, when rotating the unidirectional threaded rod, the unidirectional threaded rod will drive the clamping plate to move vertically up and down, and the clamping plate will drive the pressing block to move up and down, so as to adjust the position of the pressing block and make the pressing block press lenses of different thicknesses, improving the use effect of the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of a circular lens clamping mechanism proposed by the present utility model;

[0018] Figure 2 is a schematic cross-sectional structure diagram of the bottom plate of a circular lens clamping mechanism proposed by the present utility model;

[0019] Figure 3 is a schematic enlarged structure diagram of part A of a circular lens clamping mechanism proposed by the present utility model;

[0020] Figure 4 Schematic cross-sectional structure diagram of a sliding cylinder of a circular lens clamping mechanism proposed by the present utility model.

[0021] In the figure: 1, bottom plate; 2, groove body; 3, sliding plate; 4, bidirectional threaded rod; 5, sliding cylinder; 6, connecting rod; 7, fixing plate; 8, tension spring; 9, connecting block; 10, sliding groove; 11, suction cup; 12, unidirectional threaded rod; 13, clamping plate; 14, pressing block; 15, guide rod; 17, ball; 18, piston block. Specific embodiments

[0022] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. For the embodiments of this application described here, based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0023] Referring to Figures 1-4 , a circular lens clamping mechanism includes a bottom plate 1. A support block for placing the lens is fixed on the upper surface of the bottom plate 1 by bolts. A plurality of mounting holes are formed in the upper surface of the bottom plate 1, and a sliding cylinder 5 is welded in each of the plurality of mounting holes. A suction cup 11 is bonded to the top end of the sliding cylinder 5. A tension spring 8 is welded to the bottom of the bottom plate 1. The bottom end of the tension spring 8 is welded to a fixing plate 7. A plurality of connecting rods 6 are welded to the top of the fixing plate 7. The plurality of connecting rods 6 respectively extend into the plurality of sliding cylinders 5. The top ends of the plurality of connecting rods 6 are all welded with piston blocks 18, so that the piston blocks 18 move vertically inside the sliding cylinders 5. Connecting components for moving the fixing plate 7 downward are provided on both sides of the fixing plate 7;

[0024] On the upper surface of the bottom plate 1, two symmetrically distributed grooves 2 are provided. In both of the two grooves 2, a sliding plate 3 is slidably connected. At the top of the sliding plate 3, a unidirectional threaded rod 12 is rotatably connected. On the circumferential outer wall of the unidirectional threaded rod 12, a clamping plate 13 is threadedly connected. At the position of one side of the clamping plate 13 at the top, a pressing block 14 is welded. At the top of the sliding plate 3, a guiding component for vertically moving the clamping plate 13 is provided. In the two grooves 2, a driving component for moving the sliding plate 3 is provided. By driving the two sliding plates 3 to move along the grooves 2 through the driving component, the two sliding plates 3 will drive the clamping plate 13 to move, so as to clamp the lens with the two clamping plates 13. Then, rotate the unidirectional threaded rod 12, and the unidirectional threaded rod 12 will drive the clamping plate 13 to move downward, so that the pressing block 14 presses the lens. During the movement of the sliding plate 3, the fixing plate 7 will be driven to move downward through the connecting component. The fixing plate 7 will drive the connecting rod 6 to move downward and stretch the tension spring 8, and the connecting rod 6 will drive the piston block 18 to move downward, so as to extract the air between the suction cup 11 and the lens, so that the suction cup 11 adsorbs the lens, thereby enabling stable clamping of a thinner lens and improving the stability of the clamping mechanism in use.

[0025] In the present utility model, the driving component is a bidirectional threaded rod 4. The bidirectional threaded rod 4 is rotatably connected in the two grooves 2, and the bidirectional threaded rod 4 passes through the bottom plate 1. The bidirectional threaded rod 4 passes through the two sliding plates 3 and is threadedly connected with the two sliding plates 3. At both ends of the bidirectional threaded rod 4, knobs for rotating the bidirectional threaded rod 4 are welded. By rotating the bidirectional threaded rod 4, the bidirectional threaded rod 4 will drive the two sliding plates 3 to move along the grooves 2 through the threaded engagement with the two sliding plates 3. The connecting component includes two connecting blocks 9. The two connecting blocks 9 are respectively welded on both sides of the fixing plate 7. The two connecting blocks 9 are both in the shape of a parallelogram. On the upper surfaces of the two connecting blocks 9, two sliding grooves 10 are provided. At the bottom of the sliding plate 3, a ball 17 is rotatably connected, so that the ball 17 rolls along the sliding groove 10. During the movement of the sliding plate 3, the ball 17 will be driven to roll along the sliding groove 10. Since the connecting block 9 is in the shape of a parallelogram, when the ball 17 rolls upward along the sliding groove 10 at the inclined surface, the connecting block 9 will move downward, and the connecting block 9 will drive the fixing plate 7 to move downward;

[0026] The guiding component is two guiding rods 15. The two guiding rods 15 are both welded on the top of the sliding plate 3. At the bottom of the clamping plate 13, two sliding holes are provided. The two guiding rods 15 respectively extend into the two sliding holes to vertically move the clamping plate 13. During the downward movement of the clamping plate 13, the guiding rods 15 will move in the sliding holes, so as to guide the clamping plate 13 and make the clamping plate 13 move vertically downward. At the bottom of the bottom plate 1, a plurality of floor feet for supporting the bottom plate 1 are fixed by bolts. Rubber pads are bonded to one side of the clamping plate 13 and the pressing block 14. The top of the supporting block and the top of the suction cup 11 are flush. When the lens is placed on the supporting block, the lens will also contact the suction cup 11.

[0027] Working principle: When in use, place the lens on the support block. The lens will come into contact with the suction cup 11. Then rotate the bidirectional threaded rod 4. The bidirectional threaded rod 4 will drive two sliding plates 3 to move along the groove body 2. The two sliding plates 3 will drive the clamping plates 13 to move, so that the two clamping plates 13 clamp the lens. Then rotate the unidirectional threaded rod 12. The unidirectional threaded rod 12 will drive the clamping plate 13 to move vertically upward under the action of the guide rod 15. The clamping plate 13 will drive the pressing block 14 to move downward, so that the pressing block 14 presses the lens. During the movement of the sliding plate 3, it will drive the ball 17 to roll along the sliding groove 10. Since the connecting block 9 is a parallelogram, when the ball 17 rolls upward along the sliding groove 10 at the inclined surface, the connecting block 9 will move downward. The connecting block 9 will drive the fixing plate 7 to move downward. The fixing plate 7 will drive the connecting rod 6 to move downward and stretch the tension spring 8. The connecting rod 6 will drive the piston block 18 to move downward, so as to extract the air between the suction cup 11 and the lens, and make the suction cup 11 adsorb the lens, so as to stably clamp the thinner lens and improve the stability of the clamping mechanism in use.

[0028] The present utility model has been described through the above embodiments. Those skilled in the art can understand that the present utility model is not limited to the above embodiments. More modifications can be made according to the teachings of the present utility model, and these modifications all fall within the scope of protection required by the present utility model. The scope of protection of the present utility model is defined by the appended claims and their equivalent scope.

Claims

1. A circular lens clamping mechanism, comprising a bottom plate (1), characterized in that, A support block for placing the lens is fixedly connected to the upper surface of the bottom plate (1). A plurality of mounting holes are formed in the upper surface of the bottom plate (1). A sliding cylinder (5) is fixedly connected in each of the plurality of mounting holes. A suction cup (11) is fixedly connected to the top end of the sliding cylinder (5). A tension spring (8) is fixedly connected to the bottom of the bottom plate (1). The bottom end of the tension spring (8) is fixedly connected to a fixing plate (7). A plurality of connecting rods (6) are fixedly connected to the top of the fixing plate (7). The plurality of connecting rods (6) respectively extend into the plurality of sliding cylinders (5). The top ends of the plurality of connecting rods (6) are all fixedly connected with piston blocks (18) to enable the piston blocks (18) to move vertically inside the sliding cylinders (5). Connecting components for moving the fixing plate (7) downward are arranged on both sides of the fixing plate (7). Two symmetrically distributed grooves (2) are formed in the upper surface of the bottom plate (1). A sliding plate (3) is slidably connected in each of the two grooves (2). A one-way threaded rod (12) is rotatably connected to the top of the sliding plate (3). A clamping plate (13) is threadedly connected to the circumferential outer wall of the one-way threaded rod (12). A pressing block (14) is fixedly connected to one side of the clamping plate (13) at the top. A guiding component for moving the clamping plate (13) vertically is arranged on the top of the sliding plate (3). A driving component for moving the sliding plate (3) is arranged in the two grooves (2).

2. The circular lens clamping mechanism according to claim 1, wherein, The driving component is a bidirectional threaded rod (4). The bidirectional threaded rod (4) is rotatably connected in the two grooves (2), and the bidirectional threaded rod (4) passes through the bottom plate (1). The bidirectional threaded rod (4) passes through the two sliding plates (3) and is threadedly connected to the two sliding plates (3).

3. The circular lens clamping mechanism according to claim 2, characterized in that, Knobs for rotating the bidirectional threaded rod (4) are fixedly connected to both ends of the bidirectional threaded rod (4).

4. The circular lens clamping mechanism according to claim 1, characterized in that, The connecting component includes two connecting blocks (9). The two connecting blocks (9) are respectively fixedly connected to both sides of the fixing plate (7). The two connecting blocks (9) are both parallelograms. Two sliding grooves (10) are formed in the upper surfaces of the two connecting blocks (9). A ball (17) is rotatably connected to the bottom of the sliding plate (3) to enable the ball (17) to roll along the sliding groove (10).

5. The circular lens clamping mechanism according to claim 1, characterized in that, The guiding component is two guiding rods (15). The two guiding rods (15) are both fixedly connected to the top of the sliding plate (3). Two sliding holes are formed in the bottom of the clamping plate (13). The two guiding rods (15) respectively extend into the two sliding holes to enable the clamping plate (13) to move vertically.

6. The circular lens clamping mechanism according to claim 1, wherein, A plurality of feet for supporting the bottom plate (1) are fixedly connected to the bottom of the bottom plate (1).

7. A circular lens clamping mechanism according to claim 1, wherein, Rubber pads are fixedly connected to one side of the clamping plate (13) and the pressing block (14).

8. A circular lens clamping mechanism according to claim 1, characterized in that, The top of the support block is flush with the top of the suction cup (11).

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