Lens aperture detection fixing mechanism

Abstract

The utility model discloses a lens aperture detection fixing mechanism which comprises a workbench, a detection mechanism is arranged at the center of the workbench, a cavity is arranged in the workbench, a bidirectional screw rod is rotatably connected in the cavity, one end of the bidirectional screw rod is connected with an output shaft of a first servo motor, the first servo motor is installed on the side wall of the workbench, and the detection mechanism is arranged on the workbench. The two ends of the bidirectional lead screw are in threaded connection with threaded blocks, moving rods are installed on the two threaded blocks, clamping blocks are oppositely arranged on the two moving rods, a connecting plate is installed in the cavity, a second servo motor is installed on one side of the connecting plate, an output shaft of the second servo motor penetrates through the connecting plate to be connected with a push rod, and the push rod is located in the center of the workbench. According to the mechanism, the lens can be moved to the center of the mechanism in a non-manual mode before the lens is fixed, the position of the lens can be conveniently limited by the two clamping blocks, the detection efficiency during lens production is effectively improved, and potential safety hazards generated when the lens is manually placed into the center of the mechanism are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to lens detection technical field especially relates to a lens aperture detection fixing mechanism. BACKGROUND

[0002] After lens production is completed, usually needs to use compact high-precision MTF measuring instrument to carry out performance detection, when detecting, usually first fixed lens on corresponding detection fixture, then put to detection equipment and carry out detection.

[0003] The utility model discloses a lens detection fixture discloses a lens detection fixture, including the base shell, the detection frame fixedly connected at the top of base shell, the detection mechanism for lens detection, the detection mechanism is installed at the top of detection frame, the fixed mechanism for the clamping and fixing of the lens to be detected, the fixed mechanism includes the clamping drive assembly installed in the inside of base shell, two clamping fixed assemblies that are symmetrically arranged are installed on the clamping drive assembly, the utility model places the lens to be detected between two clamping fixed assemblies, then opens double -shaft motor, and double -shaft motor drives screw shaft rotation, and under the thread action of thread sleeve, drives the clamping fixed assembly on thread sleeve to approach the lens to be detected, and through the arc clamping plate, the lens to be detected is clamped, not only can realize the convenient clamping of the lens to be detected, but also can be used for the clamping of different size lenses, thereby improve the practicability of the utility model.

[0004] The utility model discloses the fixture of the above-mentioned utility model needs manual lens to be placed in the range of two arc clamping plates and fix it, when the detection amount is larger, the time -consuming of frequent manual operation is long, and the work efficiency is low, and there is certain security risk. UTILITY MODEL CONTENTS

[0005] The utility model discloses a lens aperture detection fixing mechanism to solve the problem of the time -consuming of frequent manual operation is long, and the work efficiency is low, and there is certain security risk in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a lens aperture detection fixing mechanism, including the workbench, the center of workbench is provided with detection mechanism, and the inside of workbench is provided with cavity, and the two -way screw rod is rotatably connected in the cavity, and one end of two -way screw rod is connected with the output shaft of first servo motor, and first servo motor is installed on the side wall of workbench, the both ends of two -way screw rod are all screw -threaded with screw block, and the movable rod is installed on two screw blocks, and the clamping block is oppositely arranged on two movable rods, and the connecting plate is installed in the cavity, and one side of connecting plate is installed with second servo motor, and the output shaft of second servo motor is connected with push rod through connecting plate, and push rod is at the center position of workbench.

[0007] Preferably, a rotating groove is formed on the workbench, the rotating groove is located corresponding to the position of the push rod, and the length of the rotating groove is twice the length of the push rod.

[0008] Preferably, two connecting grooves are formed on the workbench, and the two connecting grooves are matched with the top of the two threaded blocks.

[0009] Preferably, a sliding rod is installed on the cavity, and a sliding hole is formed on each of the two threaded blocks, and the sliding rod is matched with the sliding hole.

[0010] Preferably, a rubber pad is movably connected to each of the two clamping blocks in the vertical direction, and the rubber pad can be customized according to the size of the lens.

[0011] Preferably, a gas cylinder is installed on each of the two moving rods, and the output shaft of the gas cylinder is connected with the clamping block.

[0012] Preferably, a limiting groove is formed on each of the two moving rods, and a limiting block is installed on the bottom of each of the two clamping blocks, and the limiting block is matched with the limiting groove.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the lens is moved to the center of the mechanism by a non-manual method before being fixed by the clamping block, so that the detection efficiency during lens production is improved, and the safety hazard caused by manually placing the lens in the center of the mechanism is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective structural schematic view of a lens aperture detection and fixing mechanism is provided for the utility model;

[0016] Figure 2 A side view sectional structural schematic view of a lens aperture detection and fixing mechanism is provided for the utility model;

[0017] Figure 3 An enlarged structural schematic view of position A of a lens aperture detection and fixing mechanism is provided for the utility model;

[0018] Figure 4 A bottom view sectional structural schematic view of a lens aperture detection and fixing mechanism is provided for the utility model;

[0019] Figure 5 A structural schematic view of a push rod and a connecting plate of a lens aperture detection and fixing mechanism is provided for the utility model.

[0020] In the figure: 1, workbench; 2, detection mechanism; 3, cavity; 4, bidirectional screw rod; 5, first servo motor; 6, threaded block; 7, moving rod; 8, clamping block; 9, connecting plate; 10, second servo motor; 11, push rod; 12, rotating groove; 13, connecting groove; 14, sliding rod; 15, sliding hole; 16, rubber pad; 17, air cylinder; 18, limiting groove; 19, limiting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] REFERENCE Figures 1-5 A lens aperture detection fixing mechanism, including workbench 1, the center of workbench 1 is provided with detection mechanism 2, the inside of workbench 1 is provided with cavity 3, the inside of cavity 3 is rotatably connected with bidirectional screw rod 4, one end of bidirectional screw rod 4 is connected with the output shaft of first servo motor 5, first servo motor 5 is installed on the side wall of workbench 1, both ends of bidirectional screw rod 4 are threadedly connected with threaded block 6, moving rod 7 is installed on both threaded blocks 6, clamping block 8 is oppositely arranged on both moving rods 7, connecting plate 9 is installed in cavity 3, second servo motor 10 is installed on the side of connecting plate 9, the output shaft of second servo motor 10 is connected with push rod 11 through connecting plate 9, and push rod 11 is located at the center position of workbench 1.

[0023] When the mechanism is used, the lens can be conveyed to workbench 1 by the conveying belt, then the second servo motor 10 is started, the second servo motor 10 is rotated, thereby driving the push rod 11 to synchronously rotate to the center of workbench 1, so that the push rod 11 contacts the lens in the rotating process and pushes the lens to the center of workbench 1, then the second servo motor 10 is controlled to operate in the reverse direction, thereby driving the push rod 11 to return to the starting position, then the first servo motor 5 is started, the first servo motor 5 drives the bidirectional screw rod 4 to rotate, so that the two threaded blocks 6 threadedly connected with the bidirectional screw rod 4 drive the clamping blocks 8 installed thereon to approach each other until contacting the lens and limiting the lens between the two clamping blocks 8, then the lens is detected by the detection mechanism 2, the mechanism can move the lens to the center of the mechanism by non-manual mode before fixing the lens, the position of the lens is limited by the two clamping blocks 8, the detection efficiency of the lens production is effectively improved, and the safety hazard caused by manually placing the lens into the center of the mechanism is avoided.

[0024] Specifically, in the embodiment, a rotating groove 12 is formed on the workbench 1, the position of the rotating groove 12 corresponds to the position of the push rod 11, and the length of the rotating groove 12 is twice the length of the push rod 11, so that when the push rod 11 rotates, the end away from the second servo motor 10 can pass through the surface of the workbench 1 through the rotating groove 12, thereby achieving the purpose of the push rod 11 contacting the lens to push the lens to move. The rotating groove 12 is provided with a length of twice the length of the push rod 11, so that the push rod 11 can rotate to an angle of 180°, so that the straight line distance generated when the push rod 11 rotates can push the lens to the center of the workbench 1.

[0025] Specifically, in the embodiment, two connecting grooves 13 are formed on the workbench 1, and the top of the two threaded blocks 6 is matched with the two connecting grooves 13, so that the top of the two threaded blocks 6 can pass through the workbench 1 and be connected with the moving rod 7 through the corresponding connecting groove 13, thereby achieving the purpose that when the threaded block 6 moves, the moving rod 7 and the clamping block 8 hung on the moving rod 7 move synchronously.

[0026] Specifically, in the embodiment, a sliding rod 14 is installed on the cavity 3, and a sliding hole 15 is formed on each of the two threaded blocks 6. The sliding rod 14 is matched with the sliding hole 15, so that the two threaded blocks 6 can be slidably connected on the sliding rod 14 through the sliding hole 15, thereby limiting the two threaded blocks 6 by the sliding rod 14, so that the two threaded blocks 6 can only move along the direction of the sliding rod 14 when driven by the bidirectional screw rod 4, so that the two clamping blocks 8 always move along the same horizontal line.

[0027] Specifically, in the embodiment, a rubber pad 16 is movably connected in a vertical direction on each of the two clamping blocks 8. The rubber pad 16 can be customized according to the size of the lens, so that when the lens is fixed, the rubber pad 16 will contact the lens before the clamping block 8, thereby protecting the lens and avoiding scratches caused by direct contact between the clamping block 8 and the lens. The customizable rubber pad 16 can meet the lens fixing requirements of different specifications, further improving the practicability of the mechanism.

[0028] Specifically, in the embodiment, a pneumatic cylinder 17 is installed on each of the two moving rods 7, and the output shaft of the pneumatic cylinder 17 is connected with the clamping block 8, so that when the pneumatic cylinder 17 operates, it can drive the clamping block 8 to move synchronously away from the push rod 11, thereby achieving the purpose of moving the detected lens to the outside of the detection position for unified conveying.

[0029] Specifically, in the embodiment, a limiting groove 18 is formed on each of the two moving rods 7, and a limiting block 19 is installed on the bottom of each of the two clamping blocks 8. The limiting block 19 is matched with the limiting groove 18, so that the clamping block 8 can be slidably connected in the limiting groove 18 through the limiting block 19, thereby enabling the clamping block 8 to move along the direction of the limiting groove 18, avoiding deviation of the clamping block 8 when moving and affecting the movement effect of the lens.

[0030] The above merely is a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, all should be covered in the protection scope of the present application.

Claims

1. A lens aperture detection fixing mechanism comprising a workbench (1), characterized in that: The center of the workbench (1) is provided with a detection mechanism (2), the inside of the workbench (1) is provided with a cavity (3), the cavity (3) is rotatably connected with a bidirectional screw rod (4), one end of the bidirectional screw rod (4) is connected with the output shaft of a first servo motor (5), the first servo motor (5) is installed on the side wall of the workbench (1), both ends of the bidirectional screw rod (4) are threadedly connected with a threaded block (6), the threaded block (6) is installed with a moving rod (7), the two moving rods (7) are oppositely provided with a clamping block (8), the cavity (3) is installed with a connecting plate (9), one side of the connecting plate (9) is installed with a second servo motor (10), the output shaft of the second servo motor (10) is connected with a push rod (11) through the connecting plate (9), and the push rod (11) is located at the center position of the workbench (1).

2. The lens aperture detection fixing mechanism according to claim 1, wherein: The workbench (1) is provided with a rotating groove (12), the position of the rotating groove (12) corresponds to the position of the push rod (11), and the length of the rotating groove (12) is twice the length of the push rod (11).

3. The lens aperture detection fixing mechanism according to claim 1, wherein: The workbench (1) is provided with two connecting grooves (13), and the two connecting grooves (13) are matched with the top of the two threaded blocks (6).

4. The lens aperture detection fixing mechanism according to claim 1, wherein: The cavity (3) is provided with a sliding rod (14), and the two threaded blocks (6) are provided with a sliding hole (15), and the sliding rod (14) is matched with the sliding hole (15).

5. The lens aperture detection fixing mechanism according to claim 1, wherein: The two clamping blocks (8) are movably connected with rubber pads (16) in the vertical direction, and the rubber pads (16) can be customized according to the size of the lens.

6. The lens aperture detection fixing mechanism according to claim 1, wherein: The two moving rods (7) are provided with air cylinders (17), and the output shaft of the air cylinder (17) is connected with the clamping block (8).

7. The lens aperture detection fixing mechanism according to claim 1, wherein: The two moving rods (7) are provided with a limiting groove (18), and the bottom of the two clamping blocks (8) is provided with a limiting block (19), and the limiting block (19) is matched with the limiting groove (18).

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