Thickness gauge for optical lens detection

Abstract

The utility model belongs to the technical field of thickness detection, and particularly relates to a thickness gauge for optical lens detection. The thickness gauge for detecting the optical lens comprises a base, a platform, a placing ring, a support frame, a lifting rod, a first motor and the like, the platform is fixedly connected to the middle of the top end of the base, the front side and the rear side of the platform are vertically aligned with the front side and the rear side of the platform, and the placing ring used for placing the optical lens is fixedly connected to the middle of the front side of the top end of the platform. The supporting frame is fixedly connected to the center of the rear side of the top end of the platform, the lifting rod is slidably connected into the supporting frame, the first motor is installed at the top end of the supporting frame, and an output shaft of the first motor penetrates through the upper portion of the supporting frame. Through the design of the cleaning assembly and cooperative work of the sponge block and the fan, dust or foreign matters on the measurement surface of the optical lens can be effectively removed before measurement, the influence of the dust or foreign matters on the measurement precision is avoided, and the accuracy of the measurement result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to thickness detection technical field especially relates to a thickness gauge for optical lens detection. BACKGROUND

[0002] Optical lenses are transparent materials used to change the path or properties of light, usually made of glass or plastic. They are widely used in various devices and systems, including eyeglasses, cameras, telescopes, microscopes, lasers, and other optical instruments. The thickness of the lens directly affects its optical performance. For example, in some applications, the center thickness of the lens must be maintained within strict tolerance ranges to ensure the correct focal length. Therefore, accurately controlling the thickness of the lens during production is crucial to ensure product quality.

[0003] The existing optical lens thickness gauge, when measuring the center thickness of the optical lens, usually directly places the optical lens on the measurement table and starts the measurement operation. However, before measurement, dust or foreign matter may be attached to the measurement surface of the optical lens. In this case, the thickness needle contacts the contaminants instead of the actual measurement surface of the optical lens, which can lead to inaccurate measurement results and thickness value deviations.

[0004] Therefore, there is a particular need for an optical lens detection thickness gauge to solve the above problems. SUMMARY

[0005] In order to overcome the shortcomings of the existing optical lens thickness gauge when measuring the center thickness of the optical lens, if dust or foreign matter is attached to the measurement surface of the optical lens, the thickness needle contacts the contaminants instead of the actual surface, resulting in inaccurate measurement results and thickness value deviations, the utility model provides a kind of optical lens detection thickness gauge.

[0006] The utility model realizes the following technical approach: a kind of optical lens detection thickness gauge, including base, platform, placement ring, support frame, measuring rod, lifting rod, thickness needle, first motor, screw rod and clamping assembly, platform is fixedly connected in the position of the top end of base middle, its front and rear two sides are vertically aligned with the front and rear two sides of platform, the placement ring for placing optical lens is fixedly connected in the position of the top end of platform front side middle, support frame is fixedly connected in the position of the top end of platform rear side middle, lifting rod is slidably connected in the inside of support frame, first motor is installed in the top end of support frame, its output shaft passes through the upper portion of support frame, screw rod is connected on the output shaft of first motor by coupling, screw rod is threadedly connected with lifting rod by passing through, measuring rod is insertedly installed in the front end of lifting rod, thickness needle is set in the center point position of the bottom end of measuring rod, and is aligned with the center point of placement ring, clamping assembly for clamping optical lens is set on the upper portion of platform, further include cleaning assembly, cleaning assembly for cleaning the measurement surface of optical lens is set in the lower portion of support frame.

[0007] Further, the clamping assembly comprises a second motor, fixed plates, clamping plates and a bidirectional screw rod, the two fixed plates are symmetrically distributed and fixedly connected to the left and right sides of the front part of the upper part of the platform, the second motor is installed on the side away from the platform of the right fixed plate, the output shaft of the second motor penetrates through the right fixed plate and extends into the inside of the platform, the bidirectional screw rod is connected to the output shaft of the second motor through a shaft coupling, and the left end of the bidirectional screw rod is rotatably connected to the left fixed plate and penetrates through the left fixed plate, the two clamping plates are distributed on the left and right sides, and are screw-connected to the left and right ends of the bidirectional screw rod, and a square notch for accommodating the movement of the clamping plates is formed in the front side of the upper part of the platform.

[0008] Further, the cleaning assembly comprises electric push rods, a connecting plate, support plates, a sponge block, a fan and air outlets, the plurality of support plates are distributed on the left and right sides and are fixedly connected to the left and right sides of the lower part of the support frame, each electric push rod is installed between every two longitudinally-aligned support plates, the connecting plate is fixedly connected between the telescopic rods of the two electric push rods, the sponge block is fixedly connected to the bottom end of the connecting plate, the fan is installed at the top end of the connecting plate, a filter screen is arranged at the air inlet end of the fan, and the plurality of air outlets are distributed in a linear manner and are fixedly connected to the fan and located behind the sponge block.

[0009] Further, the cleaning assembly comprises electric push rods, a connecting plate, support plates, a sponge block, a fan and air outlets, the plurality of support plates are distributed on the left and right sides and are fixedly connected to the left and right sides of the lower part of the support frame, each electric push rod is installed between every two longitudinally-aligned support plates, the connecting plate is fixedly connected between the telescopic rods of the two electric push rods, the sponge block is fixedly connected to the bottom end of the connecting plate, the fan is installed at the top end of the connecting plate, a filter screen is arranged at the air inlet end of the fan, and the plurality of air outlets are distributed in a linear manner and are fixedly connected to the fan and located behind the sponge block.

[0010] Further, the left, right and rear side edges of the lifting rod are close to the inner side walls of the support frame.

[0011] Further, the clamping plate adopts an arc-shaped structure.

[0012] Further, the bottom end of the connecting plate is close to the top end of the roller, and the bottom end of the sponge block is lower than the top end of the roller.

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

[0014] Through the design of the cleaning assembly, the sponge block and the fan work cooperatively, dust or foreign matters on the measuring surface of the optical lens can be effectively removed before measurement, the existence of dust or foreign matters is avoided to influence the measuring accuracy, and the accuracy of the measurement result is ensured.

[0015] Through the design of the clamping assembly, different diameter optical lenses can be adapted to, and the optical lens to be measured can be firmly clamped, displacement of the optical lens is effectively prevented, and the correctness and consistency of the measurement result are ensured.

[0016] The combination of the roller, the guide rod and the spring can provide effective buffering effect for the clamping plate, prevents the clamping plate from directly clamping the optical lens, avoids the damage of the side curved surface of the optical lens, and guarantees the integrity of the optical lens. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0018] Figure 2 It is a three-dimensional structure schematic view of the utility model measuring rod, lifting rod and thickness measuring needle and other components.

[0019] Figure 3 It is a three-dimensional structure schematic view of the utility model roller, guide rod and spring and other components.

[0020] Figure 4 It is a three-dimensional structure schematic view of the utility model sponge block, fan and air outlet and other components.

[0021] In the drawing mark: 1, base, 2, platform, 21, place ring, 22, support frame, 3, measuring rod, 4, lifting rod, 5, thickness measuring needle, 6, first motor, 601, screw rod, 7, second motor, 8, fixed plate, 9, clamping plate, 10, roller, 11, guide rod, 12, spring, 13, two-way screw rod, 14, electric push rod, 141, connecting plate, 15, support plate, 16, sponge block, 17, fan, 18, air outlet. DETAILED DESCRIPTION

[0022] The preferred technical scheme of the utility model is described in detail below in combination with the drawings.

[0023] Embodiment: a thickness gauge for optical lens detection, such as Figures 1-4As shown, including the base 1, platform 2, placement ring 21, support frame 22, measuring rod 3, lifting rod 4, measuring needle 5, the first motor 6, screw rod 601 and clamping assembly, platform 2 is connected to the top of the base 1 in the middle of the position by welding, its front and rear sides are aligned with the front and rear sides of the platform 2, the placement ring 21 for placing optical lenses is connected to the top of the platform 2 by welding, the support frame 22 is connected to the top of the platform 2 by welding, the lifting rod 4 is slidingly connected to the inside of the support frame 22, its left, right and rear edges are close to the inner wall of the support frame 22, ensuring that the lifting rod 4 keeps stable linear motion during lifting and prevents lateral shaking and deviation to the maximum, the first motor 6 is connected to the top of the support frame 22 by bolts, its output shaft passes through the upper part of the support frame 22, the screw rod 601 is connected to the output shaft of the first motor 6 through a coupling, the screw rod 601 is threadedly connected to the lifting rod 4, responsible for driving the lifting rod 4 to rise and fall, the measuring rod 3 is connected to the front end of the lifting rod 4 by bolts, the measuring needle 5 is arranged at the center point of the bottom end of the measuring rod 3 and is aligned with the center point of the placement ring 21, ensuring accurate measurement of the center thickness of the optical lens, the clamping assembly for clamping the optical lens is arranged on the upper part of the platform 2, when the output shaft of the first motor 6 drives the screw rod 601 to rotate clockwise, it drives the lifting rod 4 to fall, drives the measuring rod 3 and the measuring needle 5 to fall, contacts the measuring surface of the optical lens, further comprising a cleaning assembly for cleaning the measuring surface of the optical lens, the cleaning assembly is arranged on the lower part of the support frame 22.

[0024] As shown in Figures 2-3 The clamping assembly includes a second motor 7, a fixed plate 8, a clamping plate 9 and a bidirectional screw 13, two fixed plates 8 are symmetrically distributed and connected to the upper part of the platform 2 by welding, the second motor 7 is connected to the side away from the platform 2 of the right fixed plate 8 by bolts, its output shaft passes through the right fixed plate 8 and extends into the platform 2, the bidirectional screw 13 is connected to the output shaft of the second motor 7 through a coupling, its left end is rotatably connected to the left fixed plate 8, which can provide a support point for the bidirectional screw 13 and improve the stability of the bidirectional screw 13 rotation, two clamping plates 9 are distributed left and right and are threadedly connected to the left and right ends of the bidirectional screw 13, a square notch for accommodating the movement of the clamping plate 9 is opened on the front side of the upper part of the platform 2, the length of the notch is equal to the length of the platform 2, ensuring that the clamping plate 9 moves inward and outward at will, the clamping plate 9 adopts an arc structure, which can better fit the curved surface of the side of the optical lens, ensuring that the optical lens keeps stable and accurately aligned during measurement, when the output shaft of the second motor 7 drives the bidirectional screw 601 to rotate clockwise, it drives the clamping plate 9 to move inward towards the placement ring 21 and clamps the optical lens.

[0025] As shown in Figure 4As shown, the cleaning assembly includes an electric push rod 14, a connecting plate 141, a support plate 15, a sponge block 16, a fan 17, and an air outlet 18. Multiple support plates 15 are distributed left and right and are welded to the lower left and right sides of the support frame 22. Each electric push rod 14 is bolted to every two longitudinally aligned support plates 15. The connecting plate 141 is welded between the telescopic rods of two electric push rods 14. The sponge block 16 is adhesively attached to the bottom of the connecting plate 141. The bottom of the connecting plate 141 is close to the top of the roller 10, while the bottom of the sponge block 16 is lower than (exceeds) the top of the roller 10, allowing the sponge block 16 to compress when wiping the measuring surface of the optical lens. For better wiping effect, the fan 17 is connected to the top of the connecting plate 141 by bolts. The air inlet of the fan 17 is equipped with a filter screen, which can effectively remove dust and other impurities in the air when the air is drawn in. Multiple air outlets 18 are distributed in a straight line and connected to the fan 17 by welding. The fan 17 is located behind the sponge block 16, so that the measuring surface of the optical lens is first wiped by the sponge block 16, and then the dust or foreign objects wiped off are blown away by the air outlets 18. When the telescopic rod of the electric push rod 14 extends, the connecting plate 141 drives the sponge block 16 to move forward in the direction of the placement ring 21 to wipe the measuring surface of the optical lens. The fan 17 runs, and air is blown out from the air outlets 18 onto the measuring surface of the optical lens.

[0026] like Figure 3 As shown, it also includes a roller 10, a guide rod 11, and a spring 12. Two guide rods 11 are distributed front and back and slidably connected to the front and back sides of the corresponding clamping plate 9. The diameter of the end of the guide rod 11 that passes through the corresponding clamping plate 9 is larger than the diameter of the main body of the guide rod 11, which can prevent the guide rod 11 from detaching from the corresponding clamping plate 9. The roller 10 is rotatably connected to the other end of the guide rod 11 that is not slidably connected to the corresponding clamping plate 9. The spring 12 is sleeved on the outside of the guide rod 11, and its two ends are fixedly connected to the corresponding clamping plate 9 and the guide rod 11, respectively. When the clamping plate 9 drives the guide rod 11 to move inward toward the placement ring 21, the roller 10 contacts the optical lens in advance. Under the pressure of the optical lens, the roller 10 drives the guide rod 11 to move outward toward the corresponding fixing plate 8. The spring 12 is compressed and plays a buffering role.

[0027] First, the operator will be measured on the optical lens placed on the ring 21, and then start the second motor 7, its output shaft drives the bidirectional screw 13 clockwise rotation, drive the clamping plate 9 to move closer to the optical lens, the clamping plate 9 while driving the guide rod 11 to move inward, so that the roller 10 pre-contact optical lens, and is extruded by the side of the optical lens curved surface, drive the guide rod 11 to move outward, the spring 12 is compressed, play a buffer role, prevent the clamping block directly force clamping optical lens caused damage, to ensure the integrity of the optical lens, when the clamping plate 9 to move to the appropriate position to hold the optical lens, turn off the second motor 7, then start the two electric push rod 14 and fan 17, control the two electric push rod 14 telescopic rod extension, drive the connecting plate 141 forward, the connecting plate 141 then drive all components set on it forward, so that the sponge block 16 wipe the optical lens measuring surface, in the process of wiping, fan 17 operation, the outside air into the air outlet 18, from the air outlet 18 blowing to the optical lens measuring surface, and then blow away the measuring surface by sponge block 16 wipe the dust or foreign matter, realize the double cleaning of the optical lens measuring surface, connecting plate 141 forward to the appropriate position, so that the air outlet 18 exceeds the optical lens measuring surface, control the two electric push rod 14 telescopic rod retraction, drive the connecting plate 141 back, the connecting plate 141 then drive all components set on it back, so that the sponge block 16 again wipe the optical lens measuring surface, so that the air outlet 18 again blowing air to the optical lens measuring surface, secondary cleaning, connecting plate 141 back to reset, turn off the two electric push rod 14 and fan 17, then start the first motor 6, its output shaft drives the screw 601 clockwise rotation, drive the lifting rod 4 drive all components set on it down, until the measuring thickness needle 5 contact optical lens measuring surface, turn off the first motor 6, the measuring rod 3 and measuring thickness needle 5 begin to measure the thickness of the optical lens, after the measurement, restart the first motor 6, control its output shaft drives the screw 601 counterclockwise rotation, drive the lifting rod 4 drive all components set on it to rise reset, after the rise reset, again turn off the first motor 6, and turn off the measuring rod 3 and measuring thickness needle 5, then restart the second motor 7, control its output shaft drives the bidirectional screw 13 counterclockwise rotation, drive the clamping plate 9 to move away from the optical lens, the clamping plate 9 while driving the guide rod 11 to move outward, so that the roller 10 away from the optical lens, the spring 12 is restored to its original shape, prompting the guide rod 11 drive the roller 10 inward to move reset, clamping plate 9 to move away from the reset, then remove the measured optical lens, thus, the whole process of measuring the optical lens is completed.

[0028] It is worth noting that the top of the roller 10 is lower than or equal to the top of the optical lens to be measured, to prevent the sponge block 16 can not wipe the optical lens measuring surface, in addition, when necessary, can be moderately wet sponge block 16, to wipe different types of foreign matter.

[0029] The above has introduced the present application in detail, the principle and implementation mode of the present application are described by applying specific examples in this paper, the above example is only used to help understanding the method of the present application and its core idea; at the same time, for the general technical personnel in the art, according to the idea of the present application, the specific implementation mode and application range will have changes, and the above is not understood as the limitation of the present application.

Claims

1. An optical lens detection thickness gauge, comprising a base (1), a platform (2), a placement ring (21), a support frame (22), a measuring rod (3), a lifting rod (4), a thickness measuring needle (5), a first motor (6), a lead screw (601) and a clamping assembly, the platform (2) is fixedly connected to the middle of the top end of the base (1), the front and rear sides of the platform (2) are vertically aligned, the placement ring (21) for placing optical lenses is fixedly connected to the middle of the front side of the top end of the platform (2), the support frame (22) is fixedly connected to the middle of the rear side of the top end of the platform (2), the lifting rod (4) is slidingly connected to the inside of the support frame (22), the first motor (6) is installed on the top end of the support frame (22), the output shaft of the first motor (6) penetrates through the upper part of the support frame (22), the lead screw (601) is connected to the output shaft of the first motor (6) through a shaft coupling, the lead screw (601) is threadedly connected to the lifting rod (4), the measuring rod (3) is penetratingly installed on the front end of the lifting rod (4), the thickness measuring needle (5) is arranged at the center point of the bottom end of the measuring rod (3) and is aligned with the center point of the placement ring (21), the clamping assembly for clamping optical lenses is arranged on the upper part of the platform (2), characterized in that, The cleaning assembly is arranged at the lower part of the support frame (22) and used for cleaning the optical lens measuring surface.

2. A thickness gauge for optical lens inspection according to claim 1, characterized in that, The clamping assembly comprises a second motor (7), two fixed plates (8), two clamping plates (9) and a bidirectional screw rod (13). The two fixed plates (8) are symmetrically arranged at the left and right sides of the upper part of the platform (2) and are fixedly connected to the platform (2). The second motor (7) is arranged on the side of the right fixed plate (8) away from the platform (2), and the output shaft of the second motor (7) penetrates through the right fixed plate (8) and extends into the platform (2). The bidirectional screw rod (13) is connected to the output shaft of the second motor (7) through a shaft coupling, and the left end of the bidirectional screw rod (13) is rotatably connected to the left fixed plate (8). The two clamping plates (9) are symmetrically arranged at the left and right sides of the upper part of the platform (2) and are threadedly connected to the left and right ends of the bidirectional screw rod (13). A square notch is formed in the front side of the upper part of the platform (2) and used for accommodating the movement of the clamping plates (9). The length of the notch is equal to the length of the platform (2).

3. A pachymeter for use in the detection of optical lenses according to claim 2, characterized in that, The cleaning assembly comprises an electric push rod (14), a connecting plate (141), a support plate (15), a sponge block (16), a fan (17) and air outlets (18). The support plates (15) are symmetrically arranged at the left and right sides of the lower part of the support frame (22) and are fixedly connected to the support frame (22). The electric push rod (14) is arranged between every two longitudinally aligned support plates (15). The connecting plate (141) is fixedly connected between the telescopic rods of the two electric push rods (14). The sponge block (16) is fixedly connected to the bottom end of the connecting plate (141). The fan (17) is arranged at the top end of the connecting plate (141). The fan (17) is provided with a filter screen at the air inlet end. The air outlets (18) are arranged in a linear manner and are fixedly connected to the fan (17).

4. The thickness gauge for testing optical lenses according to claim 3, characterized in that, The cleaning assembly comprises a roller (10), a guide rod (11) and a spring (12). The guide rods (11) are symmetrically arranged at the left and right sides of the upper part of the platform (2) and are fixedly connected to the platform (2). The guide rods (11) are slidably connected to the corresponding clamping plates (9) at the left and right sides of the corresponding clamping plates (9). The diameter of the end of the guide rod (11) penetrating through the corresponding clamping plate (9) is greater than the diameter of the main body of the guide rod (11). The roller (10) is rotatably connected to the other end of the guide rod (11) not connected to the corresponding clamping plate (9). The spring (12) is sleeved on the guide rod (11) and is fixedly connected to the corresponding clamping plate (9) and the guide rod (11).

5. A pachymeter for use in the detection of optical lenses according to claim 4, characterized in that, The left, right and rear edges of the lifting rod (4) are close to the inner wall of the support frame (22).

6. A pachymeter for use in the detection of optical lenses according to claim 5, characterized in that, The clamping plates (9) are in arc-shaped structures.

7. A pachymeter for use in the detection of optical lenses according to claim 6, characterized in that, The bottom end of the connecting plate (141) is close to the top end of the roller (10), and the bottom end of the sponge block (16) is lower than the top end of the roller (10).

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