A multi-dimensional adjustable piezoelectric drive optical mount based on snap ring fixation

Abstract

The present invention discloses a multi-dimensional adjustable piezoelectric drive optical mount based on a retaining ring type fixation, which comprises a 360-degree adjustable scale disk, a front fixing frame, an annular retaining ring, an intermediate fixing frame and a rear fixing plate; the front fixing frame is provided with a tension spring, the 360-degree adjustable scale disk passes through the front fixing frame and is connected with the annular retaining ring, a piezoelectric ceramic sheet is arranged on the annular retaining ring, the intermediate fixing frame and the rear fixing plate are sequentially arranged behind the annular retaining ring; the tension spring is connected with the rear fixing plate through the intermediate fixing frame, and an adjusting screw rod is arranged on the rear fixing plate. It is characterized in that this design has outstanding advantages such as simple structure, small volume, flexible use, high adjustment precision and low processing cost, and will be able to greatly expand the applicable fields of the piezoelectric drive optical mount.

Description

Technical Field

[0001] This application relates to the technical field of precision optical devices, and particularly to a multi-dimensional adjustable piezoelectric-driven optical mount based on a retaining ring type fixing, which is applicable to experiments and applications such as interference measurement, precision measurement, optical communication, quantum optics, and quantum information. Background Art

[0002] In the fields of interference measurement, optical communication, and quantum optics experiments and applications, a large amount of useful information is often contained in interference signals. Therefore, the measurement and acquisition of interference signals have become the key in the entire optical communication, quantum optics experiment, and application processes. Moreover, improving the accuracy and stability of interference signals is also the main research content of precision measurement physics. In recent years, due to the progress of piezoelectric ceramic manufacturing processes and technologies, current commercial piezoelectric ceramic wafers have significant characteristics such as miniaturization, high reliability, and high stability, and are very suitable for various precision adjustment and precision instrument applications. Traditional piezoelectric-driven optical mounts mainly fix piezoelectric ceramic wafers or piezoelectric ceramic rings at a certain point inside the optical mount. Under the control of an external driving voltage, the piezoelectric ceramic wafers can achieve a telescopic function, thereby affecting the reflection angle of the optical lens, and further achieving precise adjustment of the light beam in a certain direction, so as to control the phase, interference, and other characteristics of the light beam. On this basis, if it is necessary to adjust the angle of the light beam in multiple directions, it is inevitably necessary to increase the number of piezoelectric ceramic wafers and the volume of the mount. In addition, since each piezoelectric ceramic wafer needs to be controlled by an external driving power supply to supply voltage, the increase in the number of accessory power supplies greatly increases the complexity and cost of the application of piezoelectric-driven optical mounts. Currently, commercially available two-dimensional, three-dimensional, five-dimensional, and six-dimensional piezoelectric ceramic mounts in the market respectively add two, three, five, and six piezoelectric ceramic wafers and the corresponding number of external controller power supply devices, and their complexity is obvious. They are not only prone to errors when used, but also not easy to carry and transport, and are even less conducive to the design requirements and goals of the increasingly developing and progressing miniaturized and integrated optical systems. Summary of the Invention

[0003] The purpose of this application is to overcome the problems of the existing piezoelectric-driven optical mounts, such as complex structure, single adjustable direction, and cumbersome control components, and provide a multi-dimensional adjustable piezoelectric-driven optical mount based on a retaining ring type fixing, with a simple structure, easy to use and operate. Its technical solution is as follows.

[0004] A multi-dimensional adjustable piezoelectric drive optical mount based on a pressing ring fixation, comprising a 360-degree adjustable scale, a front fixing frame, an annular pressing ring, a middle fixing frame, a rear fixing plate and an adjusting screw; the front fixing frame is provided with a tension spring, the 360-degree adjustable scale passes through the front fixing frame and is connected to the annular pressing ring, the annular pressing ring is provided with a piezoelectric ceramic sheet, and the middle fixing frame and the rear fixing plate are sequentially arranged behind the annular pressing ring; the tension spring is connected to the rear fixing plate through the middle fixing frame, and the adjusting screw is provided on the rear fixing plate.

[0005] Further, the front fixing frame is provided with a hollow circular groove and a fixing threaded hole, the 360-degree adjustable scale is connected and fixed to the annular pressing ring behind through the hollow circular groove, and the tension spring is arranged in the fixing threaded hole.

[0006] Further, there are four fixing threaded holes, which are respectively located at the bottom and the side of the front fixing frame.

[0007] Further, adjusting screws are respectively arranged at three corners of the rear fixing plate, specifically the first adjusting screw, the second adjusting screw and the third adjusting screw.

[0008] Further, a hollow sleeve is arranged in the middle of the 360-degree adjustable scale, the top of the sleeve is threaded, and the sleeve passes through the hollow circular groove of the front fixing frame and is connected to the annular pressing ring behind.

[0009] Further, the fixing method of the sleeve and the front fixing frame adopts a pressing ring fixation.

[0010] Further, the maximum distance of the forward and backward movement of the first adjusting screw, the second adjusting screw and the third adjusting screw in the fixing direction reaches 0.8 cm, and the corresponding maximum adjusting angle reaches 10.8 degrees.

[0011] Further, for every one turn of rotation of the first adjusting screw, the second adjusting screw and the third adjusting screw, the angle in the corresponding adjusting direction can be changed by 0.54 degrees.

[0012] Further, positive and negative electrode connection ports are arranged on the middle fixing frame, the positive and negative electrode connection ports are electrically connected to the piezoelectric ceramic sheet, and during operation, the positive and negative electrode connection ports are connected to an external power supply.

[0013] Beneficial effects

[0014] 1. By means of the first adjusting screw, the second adjusting screw and the third adjusting screw, manual coarse adjustment within a large range can be realized, which is flexible and convenient to use, and has very important application significance in the optical path adjustment in optical experiments and applications.

[0015] 2. Combining the press-ring fixing technology, using a 360-degree adjustable dial, an annular press ring and piezoelectric ceramic chips, precise phase shift control of the piezoelectric ceramic in any specific direction can be achieved, thus greatly simplifying the device, improving the working performance, and meeting the requirements of various practical applications.

[0016] 3. This design has prominent advantages such as simple structure, small size, flexible use, high adjustment precision and low processing cost, which will greatly expand the applicable fields of the piezoelectric drive optical adjustment bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of this application;

[0018] Figure 2 is the right view of this application;

[0019] Figure 3 is the left view of this application;

[0020] Figure 4 is the front view of this application; (dimension drawing)

[0021] Figure 5 is the right view of this application; (dimension drawing)

[0022] Figure 6 is the left view of this application; (dimension drawing)

[0023] In the figure: 1 - 360-degree adjustable dial, 2-1 - first fixing screw hole, 2-2 - second fixing screw hole, 2-3 - third fixing screw hole, 2-4 - fourth fixing screw hole, 3 - front fixing frame, 4-1 - first adjusting screw, 4-2 - second adjusting screw, 4-3 - third adjusting screw, 5 - positive and negative electrode connection port, 6 - piezoelectric ceramic chip, 7 - rear fixing plate, 8 - intermediate fixing frame, 9 - annular press ring, 10 - tension spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of this application, the following further detailed description of this application is made in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other.

[0025] A multi-dimensional adjustable piezoelectric driving optical mount based on a pressing ring type fixation, comprising a 360-degree adjustable scale dial 1, a front fixing frame 3, an annular pressing ring 9, a middle fixing frame 8, a rear fixing plate 7 and adjusting screws; the front fixing frame is provided with an arc-shaped groove and four fixing threaded holes, namely a first fixing screw hole 2-1, a second fixing screw hole 2-2, a third fixing screw hole 2-3 and a fourth fixing screw hole 2-4, respectively at the bottom and side of the front fixing frame 1; tensile springs 10 are respectively arranged in the first fixing screw hole 2-1, the second fixing screw hole 2-2, the third fixing screw hole 2-3 and the fourth fixing screw hole 2-4. A hollow sleeve is arranged in the middle of the 360-degree adjustable scale dial 1. The top of the sleeve is threaded. The hollow part can be conveniently used to fix lenses, prisms, lenses, etc. The sleeve part is used to connect and fix with the subsequent annular pressing ring 9, and the two are fixed together by a pressing ring type fixation method. In this way, when the front fixing frame 3 is fixed, the 360-degree adjustable scale dial 1 and the annular pressing ring 9 can be conveniently and synchronously rotated freely by manual adjustment, which is the so-called pressing ring type fixation method. Piezoelectric ceramic sheets are arranged on the annular pressing ring. A middle fixing frame and a rear fixing plate are sequentially arranged behind the annular pressing ring; the tensile springs are connected to the rear fixing plate through the middle fixing frame, and adjusting screws are arranged on the rear fixing plate, specifically a first adjusting screw, a second adjusting screw and a third adjusting screw. The maximum distance of the forward and backward movement of the first adjusting screw, the second adjusting screw and the third adjusting screw in the fixed direction reaches 0.8 cm, and the corresponding maximum adjusting angle reaches 10.8 degrees.

[0026] For each rotation of the first adjusting screw, the second adjusting screw and the third adjusting screw, the angle in the corresponding adjusting direction can be changed by 0.54 degrees.

[0027] Positive and negative electrode connection ports are arranged on the middle fixing frame, and the positive and negative electrode connection ports are electrically connected to the piezoelectric ceramic sheets. During operation, the positive and negative electrode connection ports are connected to an external power supply.

[0028] The first adjusting screw 4-1, the second adjusting screw 4-2 and the third adjusting screw 4-3 are provided with fine-pitch threads and are respectively fixed at three corners of the rear fixing plate 7 through corresponding M6 threaded holes for precise adjustment.

[0029] The 360-degree adjustable scale dial 1 is made of aluminum alloy material and is subjected to black anodizing treatment, and its surface is evenly engraved with scales. The front fixing frame 3 is made of aluminum alloy material and is subjected to black anodizing treatment.

[0030] Table 1 shows a specific design value of the multi-dimensional adjustable piezoelectric driving optical mount based on the pressing ring type fixation. The specific numerical values can be optimized and adjusted according to product requirements and applications, and are not used as a limitation to the embodiments of the present invention.

[0031] Table 1

[0032]

[0033] Figures 4 - 6 Among them, A is the distance from the center of the 360-degree adjustable dial to the right edge of the front fixing bracket 3 on the Y-axis, which is the same as the distance from the center of the 360-degree adjustable dial to the lower edge of the front fixing bracket 3 on the X-axis; B is the distance from the 360-degree adjustable dial 1 to the right side and the lower side of the front fixing bracket 3, that is, the length and width of the piezoelectric drive optical adjustment bracket of the present invention. The diameter of the 360-degree adjustable dial 1 that can accommodate the fixing screw ring, i.e., the clamping diameter, is represented by The fixing screw ring is used to fix optical lenses, etc., and the light passing aperture of the lens is represented by E is the thickness of the rear fixing plate 7, F is the thickness of the front fixing bracket 3, and G is the thickness of the intermediate fixing bracket 8.

[0034] Working principle

[0035] The 360-degree adjustable dial 1 can rotate at any angle of 360 degrees on the front fixing bracket 3. The piezoelectric ceramic sheet 6 is fixed to the rear part of the 360-degree adjustable dial 1, and the piezoelectric ceramic sheet 6 will rotate with the rotation of the 360-degree adjustable dial 1. When the 360-degree adjustable dial 1 is fixed to a certain angle, by using an external driving voltage, piezoelectric adjustment of the piezoelectric drive ceramic at any angle can be realized.

[0036] The first adjusting screw 4-1, the second adjusting screw 4-2, and the third adjusting screw 4-3 are respectively fixed to the rear fixing plate 7 through the corresponding M6 screw holes. When a certain adjusting screw is rotated clockwise, the tension spring 10 is stretched, and the front fixing bracket 3 in front can be pushed to move forward in a certain direction; when a certain adjusting screw is rotated counterclockwise, the tension spring 10 contracts and restores, and the front fixing bracket 3 in front can be correspondingly moved backward in a certain direction.

[0037] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A multi-dimensional adjustable piezoelectric driving optical mount based on snap ring fixing, characterized in that It includes a 360-degree adjustable dial, a front fixing bracket, an annular retaining ring, an intermediate fixing bracket, a rear fixing plate, and an adjusting screw; the front fixing bracket is provided with a tension spring, the 360-degree adjustable dial passes through the front fixing bracket and is connected to the annular retaining ring, the annular retaining ring is provided with a piezoelectric ceramic sheet, and the intermediate fixing bracket and the rear fixing plate are sequentially arranged behind the annular retaining ring; the tension spring is connected to the rear fixing plate through the intermediate fixing bracket, and the rear fixing plate is provided with an adjusting screw; Adjusting screws are respectively arranged at three corners of the rear fixing plate, specifically the first adjusting screw, the second adjusting screw, and the third adjusting screw; The 360-degree adjustable dial can rotate at any angle of 360 degrees on the front fixing bracket. When the piezoelectric ceramic sheet is fixed at the rear of the 360-degree adjustable dial, the piezoelectric ceramic sheet will rotate as the 360-degree adjustable dial rotates.

2. The multi-dimensional adjustable piezoelectric drive optical mount based on snap ring fixing according to claim 1, characterized in that The front fixing bracket is provided with a hollow circular groove and a fixing threaded hole. The 360-degree adjustable dial is fixedly connected to the rear annular retaining ring through the hollow circular groove, and the tension spring is arranged in the fixing threaded hole.

3. The multi-dimensional adjustable piezoelectric driving optical mount based on snap ring fixing according to claim 2, wherein, There are four fixing threaded holes, which are respectively located at the bottom and sides of the front fixing bracket.

4. The multi-dimensional adjustable piezoelectric drive optical mount based on snap ring fixing according to claim 2, wherein, A hollow sleeve is arranged in the middle of the 360-degree adjustable dial. The top of the sleeve has threads, and the sleeve passes through the hollow circular groove on the front fixing bracket and is connected to the rear annular retaining ring.

5. The multi-dimensional adjustable piezoelectric drive optical mount based on snap ring fixing according to claim 4, wherein, The fixing method of the sleeve and the front fixing bracket adopts a retaining ring type fixing.

6. The multi-dimensional adjustable piezoelectric drive optical mount based on snap ring fixing according to claim 1, characterized in that The maximum distance of the forward and backward movement of the first adjusting screw, the second adjusting screw, and the third adjusting screw in the fixing direction reaches 0.8 cm, and the corresponding maximum adjusting angle reaches 10.8 degrees.

7. The multi-dimensional adjustable piezoelectric drive optical mount based on snap ring fixing according to claim 1, characterized in that, When the first adjusting screw, the second adjusting screw, and the third adjusting screw rotate one circle, the angle in the corresponding adjusting direction can be changed by 0.54 degrees.

8. A multi-dimensional adjustable piezoelectric drive optical mount based on snap ring fixing according to claim 1, characterized in that, Positive and negative electrode connection ports are arranged on the intermediate fixing bracket. The positive and negative electrode connection ports are electrically connected to the piezoelectric ceramic sheet. During operation, the positive and negative electrode connection ports are connected to an external power supply.

Images