Plane mirror supporting and adjusting device

Abstract

The invention discloses a plane mirror supporting and adjusting device, and relates to the technical field of optical elements. The rotating mechanism is used for supporting the primary mirror frame main body and driving the primary mirror frame main body to rotate; the electric pitching deflection mechanism is assembled on the rotating mechanism and is used for adjusting the precision of the primary mirror frame main body; and the main body supporting mechanism is tightly matched with the rotating mechanism and is used for supporting and leveling the main mirror frame main body. The plane mirror supporting and adjusting device has the advantages of being large in aperture, flexible to move, light in load, high in shock resistance, electrically driven, high in stability and high in displacement precision. The whole parts all accord with general specifications in China, are high in autonomous controllability, get rid of gaps of large-diameter supporting and adjusting devices in China, and are easy to machine, compact in overall structural design, low in cost and capable of meeting batch standards.

Description

Technical Field

[0001] The present invention relates to the technical field of optical elements, and in particular to a plane mirror supporting and adjusting device. Background Art

[0002] The 500mm-800mm caliber lightweight plane mirror support and adjustment device is an optical element that works on the principle of large-aperture plane reflection. With the continuous development and innovation of domestic aerospace technology, ultra-high definition, ultra-high photosensitivity and ultra-large observation range are one of the main directions of development in the aerospace field. The demand for the caliber of detection instruments developed around this mainstream direction is also gradually increasing, and the heavy weight, poor stability and low precision adjustment ability have become the key problems that currently plague us. How to make large-aperture plane mirrors have high-precision adjustment capabilities and more advantages in load and stability? So far, there is no effective support and debugging device in the 500mm-800mm caliber range. With the gradual increase in demand for 500mm-800mm caliber plane mirrors in recent years, the corresponding demand for support and adjustment devices has continued to increase. The existing support and adjustment devices have too much influence on the final plane mirror surface due to problems such as excessive concentration of stress on the plane mirror, resulting in the reflection effect not reaching the ideal state, thus causing many problems.

[0003] According to the investigation, the debugging and support of the existing large-aperture support and adjustment device do not meet the assembly and debugging of related supporting equipment in my country, and ultimately the equipment effect cannot reach the ideal state, resulting in serious problems such as significant waste of time. In order to strengthen the consistency of the mechanical structure with the light source when installing a large-aperture space camera, people in the past and present have summarized many installation methods, including the use of a series of optical components such as plane mirrors and lenses to splice into a set of large light pipes. The disadvantages are that the back intercept is too long after the overall splicing is completed, the focal plane adjustment is cumbersome, the replaceable components are complicated to disassemble, and they cannot be assembled under specific conditions. The cost is too high and the stability is poor; through the blocking of matte paint, the closed shell is used for indirect illumination, which has the disadvantages of much stray light, too high time cost, and the effect is generally not easy to be widely used.

[0004] Based on the above technical problems, technicians in this field urgently need to develop a support and adjustment device with high adjustment accuracy, small load, low vibration impact, easy use and high localization rate. Summary of the invention

[0005] The purpose of the present invention is to provide a support and adjustment device with high adjustment accuracy, small load, low vibration influence, easy use and high localization rate, so as to solve the problems of complexity, diversification and transportation difficulty in the adjustment process of aviation equipment in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A plane mirror support and adjustment device of the present invention is mainly for a plane mirror with a diameter of 500mm to 800mm. The device comprises:

[0008] a primary mirror frame body; and

[0009] A rotating mechanism, used for supporting the main mirror frame body and driving the main mirror frame body to rotate;

[0010] An electric pitch and yaw mechanism mounted on the rotating mechanism, used for precision adjustment of the main mirror frame body;

[0011] The device also includes:

[0012] The main body support mechanism is closely matched with the rotating mechanism and is used to support and level the main mirror frame body.

[0013] Further, the main mirror frame body includes a main mirror; and

[0014] A primary mirror connecting column bonded to and supported on the primary mirror;

[0015] A fan blade connecting plate, one end of which is connected to the main mirror connecting column, and the other end is connected to a support frame, and the support frame is tightly connected to the outer frame by screws;

[0016] Both ends of the outer frame are connected to support columns by screws, and the main mirror frame body is connected to the rotating mechanism through the support columns to achieve rotation;

[0017] The front end of the outer frame is provided with a threaded hole and is installed with a dust cover.

[0018] Furthermore, the electric pitch and yaw mechanism includes a planetary reducer, a stepper motor and a spur gear, and the stepper motor is used to control fine adjustment of the entire machine.

[0019] Furthermore, the main body supporting mechanism includes a base and a column, and the head of the base is a cylinder with a weight-reducing groove provided thereon for mounting the column.

[0020] Preferably, the primary mirror is integrally pressed from quartz glass, and the primary mirror connecting column is bonded to the primary mirror by epoxy resin glue;

[0021] The fan blade connecting plate is integrally formed by injection molding, and its center and the edge of the fan blade are provided with threaded holes which are respectively connected to the main mirror connecting column and the support frame.

[0022] Preferably, the outer frame is made of aluminum alloy, and is provided with a retaining ring at the front end for shielding stray light, and a weight-reducing groove at the rear end, and has no threaded holes inside for connecting with the support frame.

[0023] In the above technical solution, a plane mirror support and adjustment device provided by the present invention has the following beneficial effects:

[0024] The plane mirror support and adjustment device of the present invention has the characteristics of large aperture, flexible movement, light load, strong earthquake resistance, electric drive, high stability, and high displacement accuracy; all the overall components meet the general specifications in our country, with strong independent controllability, getting rid of the gap in large-aperture support and adjustment devices in our country, simple processing, compact overall structure design, low cost, and meeting batch standards. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is the overall structure diagram of a plane mirror support and adjustment device provided by an embodiment of the present invention;

[0027] Figure 2 It is the side sectional view of the overall structure of a plane mirror support and adjustment device provided by an embodiment of the present invention;

[0028] Figure 3 It is the side sectional view of the plane mirror structure in a plane mirror support and adjustment device provided by an embodiment of the present invention;

[0029] Figure 4 It is the front view of the plane mirror in a plane mirror support and adjustment device provided by an embodiment of the present invention.

[0030] Description of the Reference Numerals:

[0031] 1. Main mirror frame body; 2. Rotating mechanism; 3. Electric pitching and yawing mechanism; 4. Main body support mechanism;

[0032] 1-1. Main mirror; 1-2. Main mirror connecting column; 1-3. Fan blade connecting plate; 1-4. Support frame; 1-5. Outer frame; 1-6. Dust cover; 1-7. Support column. Detailed Embodiments

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further introduce the present invention in detail in conjunction with the drawings.

[0034] See Figures 1 to 4 as shown;

[0035] A plane mirror support and adjustment device of the present invention is for a plane mirror with a diameter of 500mm to 800mm, and the device comprises:

[0036] A main mirror frame body 1; and

[0037] The rotating mechanism 2 is mainly used to support the main mirror frame body 1, which is made of cast aluminum in one piece;

[0038] The electric pitch and yaw mechanism 3 assembled on the rotating mechanism 2 is used to perform high-precision fine-tuning adjustment on the main mirror frame body 1, effectively achieving a rotational steady-state effect.

[0039] The device also includes:

[0040] The main body support mechanism 4 is closely matched with the rotating mechanism 2 and is used to support and level the main mirror frame body 1.

[0041] As a further introduction to this embodiment, the main mirror frame body 1 includes a main mirror 1-1; and

[0042] A primary mirror connecting column 1-2 bonded to and supported on the primary mirror 1-1;

[0043] The fan blade connecting plate 1-3 has one end connected to the main mirror connecting column 1-2 and the other end connected to the supporting frame 1-4. The supporting frame 1-4 is used to connect the main body of the main mirror 1-1. The whole is tightly connected to the outer frame 1-5 by M8X30 screws using the triangular fixing method, which strengthens the stabilization of the rapid conduction amplitude and prevents unnecessary damage to other optical components caused by excessive height in different application scenarios. A small plane mirror parallel to the main mirror is provided on the back for self-calibration occasions;

[0044] Both ends of the outer frame 1-5 are connected with support columns 1-7 by M8X30 screws. The main mirror frame body 1 is connected to the rotating mechanism through the support columns 1-7 to realize rotation. The support columns 1-7 are used to support and rotate the main mirror frame body 1, which is flexibly connected to the rotating mechanism 2 and rigidly connected to the electric pitch and yaw mechanism 3. The support columns 1-7 are made of structural steel in one piece, have heavy load capacity and high stability, and use solid viscous oil as a lubricant to effectively reduce the impact of stress.

[0045] The front end of the outer frame 1-5 is provided with a threaded hole and is installed with a dust cover 1-6, which mainly plays a dust-proof role.

[0046] As a further introduction to this embodiment, the electric pitch and yaw mechanism 3 includes a planetary reducer, a stepper motor and a spur gear, and the stepper motor controls the fine adjustment of the whole machine. The whole machine is fine-tuned by electronic control, and a layer of gold coating on the outside can effectively block the shortening of life caused by temperature difference. This advantage can be used to meet different extreme test requirements.

[0047] As a further introduction to this embodiment, through the close fit of the screw and the rotating mechanism 2, the main body support mechanism 4 includes a base foot and a column. The head of the base foot is a cylinder and can be tilted and turned within a certain range. A weight reduction groove is provided at the position of the support column, which can not only play a supporting role, but also effectively reduce the overall weight while ensuring the overall support stability. Due to its light weight, only 4 people are needed to move it, truly realizing the characteristics of fast installation and disassembly without changing the position.

[0048] As a preferred technical solution of this embodiment, the main mirror 1-1 is integrally pressed from quartz glass. Using the honeycomb support principle, the total weight of the main mirror 1-1 is minimized on the premise of ensuring the overall steady-state mechanism. The main mirror connecting column 1-2 is made of tool steel and is bonded to the main mirror 1-1 through epoxy resin glue;

[0049] The fan blade connecting plate 1-3 is integrally formed by injection molding, with a stable structure. Through aging treatment, its good stability can be ensured. Threaded holes are provided at its center and the edge of the fan blade, and are respectively connected to the main mirror connecting column 1-2 and the support frame 1-4.

[0050] As a preferred technical solution of this embodiment, the outer frame 1-5 is made of aluminum alloy, and a retaining ring is provided at the front end to block stray light, a weight reduction groove is provided at the rear end, and threaded holes are provided inside for connecting to the support frame 1-4.

[0051] When the plane mirror support and adjustment device provided in this embodiment works, first place this device in a relatively stable position, perform rough calibration by adjusting the main body support mechanism 4, connect the power cord of the electric pitch and yaw mechanism 3, extend and calibrate it, open the dust cover 1-6 and place it in a safe position, and finally complete the final calibration through electronic control fine adjustment, and the installation and placement are completed.

[0052] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A plane mirror support and adjustment device, characterized in that: The device includes: A primary mirror frame body (1); and A rotating mechanism (2) is used to support the main mirror frame body (1) and drive the main mirror frame body (1) to rotate; An electric pitch and yaw mechanism (3) mounted on the rotating mechanism (2) and used for precision adjustment of the main mirror frame body (1); The device also includes: The main body support mechanism (4) is closely matched with the rotating mechanism (2) and is used to support and level the main mirror frame body (1).

2. A plane mirror support and adjustment device according to claim 1, characterized in that: The main mirror frame body (1) comprises a main mirror (1-1); and A primary mirror connecting column (1-2) bonded to and supported by the primary mirror (1-1); A fan blade connecting plate (1-3), one end of which is connected to the main mirror connecting column (1-2), and the other end of which is connected to a supporting frame (1-4), wherein the supporting frame (1-4) is tightly connected to the outer frame (1-5) by means of screws; Both ends of the outer frame (1-5) are connected to support columns (1-7) via screws, and the main mirror frame body (1) is connected to the rotating mechanism via the support columns (1-7) to achieve rotation; The front end of the outer frame (1-5) is provided with a threaded hole and is installed with a dust cover (1-6).

3. A plane mirror support and adjustment device according to claim 1, characterized in that: The electric pitch and yaw mechanism (3) comprises a planetary reducer, a stepping motor and a spur gear, and the stepping motor is used to control the fine adjustment of the whole machine.

4. A plane mirror support and adjustment device according to claim 1, characterized in that: The main body support mechanism (4) comprises a base and a column; the head of the base is a cylinder and is provided with a weight-reducing groove for mounting the column.

5. A plane mirror support and adjustment device according to claim 2, characterized in that: The primary mirror (1-1) is integrally formed by pressing quartz glass, and the primary mirror connecting column (1-2) is bonded to the primary mirror (1-1) by epoxy resin glue; The fan blade connecting plate (1-3) is integrally formed by injection molding, and its center and the fan blade edge are both provided with threaded holes, which are respectively connected to the main mirror connecting column (1-2) and the support frame (1-4).

6. A plane mirror support and adjustment device according to claim 2, characterized in that: The outer frame (1-5) is made of aluminum alloy, and is provided with a retaining ring at the front end for shielding stray light, and a weight-reducing groove at the rear end, and has no threaded holes inside for connection with the support frame (1-4).

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