Optical lens spherical interferometer

Abstract

The utility model relates to the field of interferometers, and discloses an optical lens spherical interferometer, which comprises a bottom plate, a fixing mechanism and a spherical interferometer, a shell is fixedly connected to the bottom plate, a fixing mechanism is arranged on the shell, a spherical interferometer is arranged in the shell, an optical lens is arranged on the fixing mechanism, and the optical lens corresponds to the spherical interferometer; the fixing mechanism comprises a casing pipe, worm wheels, fixing rods, fixing plates, clamping plates and a gear ring, the casing pipe is rotationally connected to the shell, threads are formed in the outer side of the casing pipe, the three worm wheels are connected to the threads in a meshed mode, the fixing rods are fixedly connected to the three worm wheels, the clamping plates are fixedly connected to the three fixing rods, and the gear ring is fixedly connected to the casing pipe. And the optical lens is arranged among the three clamping plates. The utility model has the following advantages and effects: the optical lens and the spherical interferometer can be accurately positioned through the cooperation of all the components.

Description

Technical Field

[0001] The utility model relates to the technical field of interferometers, in particular to an optical lens spherical interferometer. Background Art

[0002] Lasers have the advantages of high intensity, high directivity, spatial coherence, narrow bandwidth, and high monochromaticity. Currently, the interferometers commonly used to measure length are primarily Michelson interferometers, using a frequency-stabilized helium-neon laser as the light source, forming an interferometric measurement system. Laser interferometers can be used in conjunction with various refractors and reflectors to measure linear position, velocity, angle, flatness, straightness, parallelism, and perpendicularity. They can also be used to calibrate precision machine tools or measuring instruments.

[0003] In the prior art, when an optical lens is placed above a light-transmitting hole, the lens is easily damaged by falling into the light-transmitting hole due to external force, making detection inconvenient. To address the above problem, the document with application number: 202320852626.X discloses an interferometer for optical lens detection, which includes a frame, the frame is provided with a base, the base is provided with a light-transmitting hole, the base is provided with a supporting mechanism for supporting the optical lens, and the base is provided with a protective net for preventing the optical lens from falling into the light-transmitting hole; the protective net has a mesh structure, which can prevent the optical lens from falling into the light-transmitting hole without hindering the interference detection of the optical lens. The mesh is made of a flexible material, so that the optical lens is not easily scratched when it falls on the protective net, which is beneficial to protecting the optical lens and facilitating detection;

[0004] Regarding the above-mentioned related technologies, in the process of fixing the optical lens, multiple supporting mechanisms are adjusted manually, which may easily cause the optical lens to not accurately correspond to the interferometer. The optical lens needs to be removed from the supporting mechanism before it can be adjusted. The operation steps are cumbersome, time-consuming and labor-intensive, and need to be improved.

[0005] Therefore, we propose an optical lens spherical interferometer to solve the problems in the background technology. Utility Model Content

[0006] The purpose of the utility model is to provide an optical lens spherical interferometer, which has the effect of accurately positioning the optical lens and the spherical interferometer.

[0007] The above technical objectives of the present utility model are achieved through the following technical solutions: an optical lens spherical interferometer, comprising a base plate, a fixing mechanism and a spherical interferometer;

[0008] The bottom plate is fixedly connected to a shell, the shell is provided with a fixing mechanism, a spherical interferometer is provided in the shell, the fixing mechanism is provided with an optical lens, and the optical lens corresponds to the spherical interferometer;

[0009] The fixing mechanism includes a sleeve, a worm gear, a fixing rod, a fixing plate, a splint and a gear ring. The shell is rotatably connected to the sleeve, and a thread is provided on the outer side of the sleeve. Three worm gears are meshed and connected to the thread. The three worm gears are fixedly connected to a fixing rod, and the three fixing rods are fixedly connected to a splint. The optical lens is arranged between the three splints. Through the coordinated design between the shell, the fixing mechanism and the motor, not only can the optical lens be clamped and fixed, but also the optical lens and the spherical interferometer can be accurately positioned, which greatly reduces the error in detecting the optical lens and is more practical.

[0010] The utility model is further configured as follows: the three fixing rods are rotatably connected to a fixing plate, one end of the three fixing plates is fixedly connected to the housing, and the three worm gears can be supported by the three fixing plates.

[0011] The utility model is further configured as follows: a gear ring is fixed on the sleeve to facilitate driving the sleeve to rotate on the shell, and the spherical interferometer is located at the center position between the three clamping plates to facilitate corresponding to the center of the optical lens.

[0012] The utility model is further configured as follows: an electric motor is fixedly mounted on the base plate, an output end of the electric motor is fixedly connected to a gear, the gear is meshed with the gear ring, the gear is driven by the electric motor to rotate and transmit to the gear ring, so that the gear ring drives the sleeve to rotate on the housing.

[0013] The utility model is further configured as follows: a round tube is fixedly connected to one end of the shell, a protective net is fixedly installed in the round tube, the protective net corresponds to the spherical interferometer and the optical lens, and the spherical interferometer can be protected by the protective net.

[0014] The present invention is further configured as follows: the threads on the sleeve are adapted to the three worm gears, so as to facilitate transmission with the three worm gears.

[0015] The present invention is further configured as follows: protective pads are fixedly mounted on one end of the three clamps, and the three protective pads are in contact with the optical lens to avoid damage to the optical lens.

[0016] The utility model is further configured as follows: the three fixing plates are arranged at equal intervals on the shell, and through the action of the three fixing plates, the three worm gears and the clamping plates are arranged at equal intervals on the outside of the shell, and because the distances between the three clamping plates are equal, in the process of the three clamping plates clamping the optical lens, the optical lens moves toward the center of the three clamping plates, so that the optical lens corresponds to the center of the spherical interferometer, thereby achieving the effect of accurately positioning the optical lens.

[0017] The present invention is further configured as follows: two bearings 1 are fixedly sleeved on the shell, and outer walls of the two bearings 1 are fixedly connected to the sleeve to facilitate the rotation of the sleeve.

[0018] The utility model is further configured as follows: bearings 2 are fixedly sleeved on both ends of the three fixing rods, and outer walls of the six bearings 2 are fixedly connected to the three fixing plates respectively, so as to facilitate the rotation of the three worm gears.

[0019] The beneficial effect of the present invention is that through the coordinated design between the shell, the fixing mechanism and the motor, not only can the optical lens be clamped and fixed, but also the optical lens and the spherical interferometer can be accurately positioned, which greatly reduces the error in detecting the optical lens and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of an optical lens spherical interferometer proposed in the utility model;

[0022] Figure 2 This is a schematic diagram of the dissection of an optical lens spherical interferometer proposed in the utility model;

[0023] Figure 3 This is a schematic diagram of the fixing mechanism structure of an optical lens spherical interferometer proposed in the present utility model;

[0024] Figure 4 This is an exploded schematic diagram of an optical lens spherical interferometer proposed in the utility model.

[0025] In the figure, 1. base plate; 2. shell; 3. fixing mechanism; 31. sleeve; 32. worm gear; 33. fixing rod; 34. fixing plate; 35. splint; 36. gear ring; 4. optical lens; 5. spherical interferometer; 6. motor; 7. gear; 8. round tube; 9. protective net. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0027] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] Reference Figure 1-4 , an optical lens spherical interferometer, comprising a base plate 1, a fixing mechanism 3 and a spherical interferometer 5;

[0029] A housing 2 is fixedly connected to the base plate 1, and a fixing mechanism 3 is provided on the housing 2. A spherical interferometer 5 is provided in the housing 2, and an optical lens 4 is provided on the fixing mechanism 3. The optical lens 4 corresponds to the spherical interferometer 5; a display, an operator, etc. are connected to one side of the spherical interferometer 5 (not shown in the figure). The staff operates the operator to control the spherical interferometer 5 to work. The spherical interferometer 5 displays the experimental data on the display screen of the display, thereby achieving the effect of detecting the optical lens 4. The specific structure and working principle of the spherical interferometer 5 can be referred to the document with application number: 201920164984.5. This is the prior art and will not be described in detail.

[0030] The fixing mechanism 3 includes a sleeve 31, a worm gear 32, a fixing rod 33, a fixing plate 34, a splint 35 and a gear ring 36. The sleeve 31 is rotatably connected to the shell 2. A thread is provided on the outer side of the sleeve 31, and three worm gears 32 are meshed and connected to the thread. The three worm gears 32 are fixedly connected to the fixing rod 33, and the three fixing rods 33 are fixedly connected to the splint 35. The optical lens 4 is arranged between the three splints 35. Through the coordinated design between the shell 2, the fixing mechanism 3 and the motor 6, not only can the optical lens 4 be clamped and fixed, but also the optical lens 4 and the spherical interferometer 5 can be accurately positioned, which greatly reduces the error in detecting the optical lens 4.

[0031] Refer to the attached Figure 4 The three fixing rods 33 are rotatably connected to a fixing plate 34 , and one end of the three fixing plates 34 is fixedly connected to the housing 2 . The three fixing plates 34 can support the three worm gears 32 .

[0032] Refer to the attached Figure 2-3 A gear ring 36 is fixedly provided on the sleeve 31 for driving the sleeve 31 to rotate on the housing 2. The spherical interferometer 5 is located at the center position between the three splints 35 for easy correspondence with the center of the optical lens 4. A motor 6 is fixedly installed on the base plate 1. The output end of the motor 6 is fixedly connected to a gear 7. The gear 7 is meshed with the gear ring 36. The gear 7 is driven by the motor 6 to rotate and transmit the gear ring 36, so that the gear ring 36 drives the sleeve 31 to rotate on the housing 2. The threads on the sleeve 31 are adapted to the three worm gears 32, which is convenient for transmission with the three worm gears 32. Protective pads are fixedly installed on one end of the three splints 35, and the three protective pads are in contact with the optical lens 4 to avoid damage to the optical lens 4. Bearings 2 are fixedly provided at both ends of the three fixing rods 33. The outer walls of the six bearings 2 are fixedly connected to the three fixing plates 34 respectively, which is convenient for the rotation of the three worm gears 32.

[0033] Refer to the attached Figure 1-2 One end of the shell 2 is fixedly connected to a round tube 8, and a protective net 9 is fixedly installed in the round tube 8. The protective net 9 corresponds to the spherical interferometer 5 and the optical lens 4. The protective net 9 can protect the spherical interferometer 5.

[0034] Refer to the attached Figure 1The three fixing plates 34 are arranged at equal intervals on the shell 2. Through the action of the three fixing plates 34, the three worm gears 32 and the clamping plates 35 are arranged at equal intervals on the outside of the shell 2. Moreover, since the distances between the three clamping plates 35 are equal, the optical lens 4 is moved toward the center of the three clamping plates 35 during the process of the three clamping plates 35 clamping the optical lens 4, so that the optical lens 4 corresponds to the center of the spherical interferometer 5, thereby achieving the effect of accurately positioning the optical lens 4. Two bearings 1 are fixedly sleeved on the shell 2, and the outer walls of the two bearings 1 are fixedly connected to the sleeve 31 to facilitate the rotation of the sleeve 31.

[0035] Working principle: When in use, the motor 6 drives the gear 7 to rotate and transmit to the gear ring 36, so that the gear ring 36 drives the sleeve 31 to rotate on the housing 2. At the same time, the sleeve 31 engages with the three worm gears 32 through the action of the threads opened on the outside, and the three worm gears 32 drive the three fixing rods 33 to rotate on the three fixing plates 34 respectively. At the same time, the three fixing rods 33 drive the three clamping plates 35 to rotate synchronously, and the three clamping plates 35 clamp and limit the optical lens 4, thereby achieving the effect of fixing the optical lens;

[0036] During this process, since the distances between the three clamps 35 are equal, the optical lens 4 moves toward the center of the three clamps 35 while the three clamps 35 are clamping the optical lens 4, so that the optical lens 4 corresponds to the center of the spherical interferometer 5, thereby achieving the effect of accurately positioning the optical lens 4.

[0037] The technical progress achieved by the present invention compared with the existing technology is that through the cooperation of various components, not only can the optical lens 4 be clamped and fixed, but also the optical lens 4 and the spherical interferometer 5 can be accurately positioned, which greatly reduces the error in the detection of the optical lens 4 and has higher practicality.

Claims

1. An optical lens spherical interferometer, characterized in that: It comprises a base plate (1), a fixing mechanism (3) and a spherical interferometer (5); A housing (2) is fixedly connected to the base plate (1), a fixing mechanism (3) is provided on the housing (2), a spherical interferometer (5) is provided in the housing (2), an optical lens (4) is provided on the fixing mechanism (3), and the optical lens (4) corresponds to the spherical interferometer (5); The fixing mechanism (3) comprises a sleeve (31), a worm gear (32), a fixing rod (33), a fixing plate (34), a clamping plate (35) and a gear ring (36); the housing (2) is rotatably connected to the sleeve (31); the outer side of the sleeve (31) is provided with a thread; three worm gears (32) are meshedly connected to the thread; the three worm gears (32) are fixedly connected to the fixing rod (33); the three fixing rods (33) are fixedly connected to the clamping plate (35); and the optical lens (4) is arranged between the three clamping plates (35).

2. The optical lens spherical interferometer according to claim 1, characterized in that: The three fixing rods (33) are all rotatably connected to a fixing plate (34), and one end of the three fixing plates (34) is fixedly connected to the housing (2).

3. The optical lens spherical interferometer according to claim 1, characterized in that: A gear ring (36) is fixedly sleeved on the sleeve (31), and the spherical interferometer (5) is located at the center between the three clamping plates (35).

4. The optical lens spherical interferometer according to claim 3, characterized in that: An electric motor (6) is fixedly mounted on the base plate (1), an output end of the electric motor (6) is fixedly connected to a gear (7), and the gear (7) is meshedly connected to the gear ring (36).

5. The optical lens spherical interferometer according to claim 1, characterized in that: One end of the housing (2) is fixedly connected to a circular tube (8), a protective net (9) is fixedly installed inside the circular tube (8), and the protective net (9) corresponds to both the spherical interferometer (5) and the optical lens (4).

6. The optical lens spherical interferometer according to claim 1, characterized in that: The threads provided on the sleeve (31) are adapted to the three worm wheels (32).

7. The optical lens spherical interferometer according to claim 1, characterized in that: One end of each of the three clamping plates (35) is fixedly mounted with a protective pad, and each of the three protective pads is in contact with the optical lens (4).

8. The optical lens spherical interferometer according to claim 2, characterized in that: The three fixing plates (34) are arranged at equal intervals on the housing (2).

9. The optical lens spherical interferometer according to claim 1, characterized in that: Two bearings 1 are fixedly sleeved on the housing (2), and the outer walls of the two bearings 1 are fixedly connected to the sleeve (31).

10. The optical lens spherical interferometer according to claim 2, characterized in that: Two ends of the three fixing rods (33) are fixedly sleeved with bearings 2, and the outer walls of the six bearings 2 are fixedly connected to the three fixing plates (34) respectively.

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