Kuban type high-precision rotary table

Abstract

The invention relates to the field of satellite-borne laser communication, in particular to a Kuder type high-precision rotary table which comprises a telescope assembly and an angle adjusting mechanism, the angle adjusting mechanism comprises a pitch axis system assembly and an azimuth axis system assembly, the telescope assembly is rotationally connected with the pitch axis system assembly along the horizontal axis, and the azimuth axis system assembly is rotationally connected with the azimuth axis system assembly along the horizontal axis; the pitch axis system assembly is rotationally connected with the azimuth axis system assembly along a vertical axis; the locking assembly is arranged on the azimuth axis system assembly so as to limit the rotation of the azimuth axis system assembly in the pitch axis system assembly; and the reference mirror assembly is arranged on the azimuth axis system assembly to provide position reference for optical device adjustment. According to the scheme, the control precision of the shaft system is greatly improved, and the effect of high rotation precision of the shaft system is achieved.

Description

Technical Field

[0001] The invention relates to the field of satellite-borne laser communication, and in particular to a Kudden-type high-precision turntable. Background Art

[0002] At present, laser communication is a communication method that uses laser as a carrier to carry information such as images, sounds, and signals. Compared with traditional microwave communication, it has the advantages of fast transmission speed, long transmission distance, large communication capacity, and strong anti-electromagnetic interference performance. It is often used for communication between air-to-ground, air-to-air, satellite-to-ground, satellite-to-space, and intersatellite links.

[0003] The Coode optical path is a light-guiding optical path that can turn the light beam to a light-guiding optical path that rotates with the axis system. The laser beam passing through the Coode optical path can be free from the influence of the rotation of the turntable, and thus be emitted in a predetermined direction. It is a total reflection optical path, in which the light is guided into the Coode optical path by a light-guiding mirror, and then the propagation path of the light is changed by a multi-faceted high-precision reflector through reflection, so that the light can be sent to a predetermined direction after passing through the Coode mirror.

[0004] In order to achieve rapid scanning, capture and tracking of signals, the Kude optical path needs to be mounted on a high-precision two-dimensional turntable. However, some existing two-dimensional turntables generally have problems such as the inability to automatically drive the device, poor rotation accuracy, and large angular displacement measurement errors. Summary of the invention

[0005] In order to solve the problems of the two-dimensional turntable, such as the inability to automatically drive the device, poor rotation accuracy, and large angular displacement measurement errors, the present application provides a Kuder-type high-precision turntable.

[0006] The present application provides a Kude-type high-precision turntable adopts the following technical solution: A Kude-type high-precision turntable comprises a telescope assembly, an angle adjustment mechanism, a locking assembly and a reference mirror assembly; the angle adjustment mechanism comprises a pitch axis assembly and an azimuth axis assembly, the telescope assembly is rotationally connected to the pitch axis assembly along a horizontal axis, and the pitch axis assembly is rotationally connected to the azimuth axis assembly along a vertical axis; a locking assembly, the locking assembly is arranged on the azimuth axis assembly to limit the rotation of the pitch axis assembly; and a reference mirror assembly, the reference mirror assembly is arranged on the azimuth axis assembly to provide a position reference for optical adjustment.

[0007] By adopting the above technical scheme, the pitch axis assembly and the azimuth axis assembly can provide two-dimensional rotational movement of the telescope assembly, the telescope assembly is connected to the pitch axis assembly to realize the reception and transmission of light beams, the locking assembly is connected to the azimuth axis assembly to form a flexible lock for the telescope assembly, the reference mirror assembly is connected to the azimuth axis assembly to provide a position reference for optical adjustment, the whole machine mechanism adopts an L-shaped structure, the azimuth rotation axis is located at the rotation center of the whole machine, so that its rotation envelope is minimized, and the high-precision rotation between the azimuth axis assembly and the pitch axis assembly is utilized to make the two have a high orthogonality, so that the light beam paths in the Kude optical path are basically consistent, achieving lightweight and miniaturization while meeting the high rotation accuracy requirements and reducing the influence of the structural size changes with temperature on the optical signal transmission.

[0008] Optionally, the pitch axis system assembly includes a first shell for installing the telescope assembly, a plurality of pitch bearings are arranged in the first shell, a pitch axis assembled with the pitch bearings is arranged on the first shell, the telescope assembly is rotatably connected to the first shell through the pitch axis, and a pitch motor is arranged in the first shell to drive the pitch axis and the telescope assembly to rotate.

[0009] By adopting the above technical solution, multiple pitch bearings are used to assemble and support the pitch axis, so that the pitch axis system assembly is smoother in the process of driving the telescope assembly to rotate. At the same time, multiple pitch bearings are used to increase the coaxiality of the pitch axis and the first shell rotation, greatly reducing the centering of the telescope assembly during rotation and reducing observation errors.

[0010] Optionally, a pitch counterweight is provided at the rear end of the first shell.

[0011] By adopting the above technical solution, the pitch counterweight arranged at the rear end of the first shell increases the mass of the rear end of the first shell, changes the overall center of gravity of the pitch axis system assembly, and achieves static and dynamic balance of the entire machine by adjusting the weight and position of the pitch counterweight.

[0012] Optionally, the pitch axis system assembly further includes a second mirror, and a second mirror seat for mounting the second mirror is disposed in the first shell, and the second mirror seat is coaxially disposed with the first shell and rotates synchronously with the telescope assembly.

[0013] By adopting the above technical solution, the direction of light in the first shell can be changed through the second mirror, so that it is more convenient for users to observe through the second mirror. At the same time, the second mirror seat rotates coaxially with the first shell, so that the user can continue to observe during the rotation of the second mirror.

[0014] Optionally, the pitch axis system assembly further includes a pitch grating disk, and the pitch grating disk is fixedly disposed in the first shell, and a pitch grating cover covering the pitch grating disk is also disposed in the first shell.

[0015] By adopting the above technical solution and installing the pitch grating disk, the user can read the specific rotation position of the pitch axis assembly through the data transmitted by the grating disk during the rotation of the pitch axis assembly, thereby increasing the operation and use accuracy of the whole machine.

[0016] Optionally, the azimuth axis system assembly includes a second shell, a slip ring, an azimuth axis and an azimuth motor, the slip ring is fixedly arranged at the top end of the azimuth axis, and the azimuth axis is rotatably arranged at one end of the second shell through the azimuth motor to drive the pitch axis system assembly to flip.

[0017] By adopting the above technical solution, the azimuth axis is utilized to make the coaxiality of the azimuth axis system assembly and the pitch axis system assembly higher, thereby improving the rotation concentricity of the pitch axis system assembly. The structure of the azimuth axis system assembly can adopt the same structure as the pitch axis system assembly, making the rotation of the azimuth axis system assembly smoother.

[0018] Optionally, an azimuth grating is arranged in the second shell to determine the azimuth position, and an azimuth grating reading head is arranged in the second shell to read the grating data.

[0019] By adopting the above technical solution and installing the azimuth grating disk, the azimuth axis system assembly can transmit data through the azimuth grating disk during its rotation, so that the user can read the specific rotation position of the azimuth axis system assembly, thereby increasing the operation and use accuracy of the whole machine.

[0020] Optionally, a grounding column is disposed outside the second shell to conduct static electricity generated by the turntable.

[0021] By adopting the above technical solution and utilizing the conductive effect of the grounding column, the static electricity generated during the operation of the turntable or the static electricity encountered during the operation of the turntable can be conducted to the outside, thereby avoiding the influence of static electricity on the turntable and preventing the turntable from being damaged by static electricity.

[0022] Optionally, the locking assembly includes a locking pin, a pin puller seat and a memory alloy pin puller that can shrink when exposed to heat; a locking rod is arranged between the locking pin and the pitch axis system assembly; one end of the locking rod is slidably connected to the locking pin, and the other end of the locking rod is fixedly connected to the pitch axis system assembly; the locking pin and the memory alloy pin puller are slidably connected to the pin puller seat, and the locking pin and the memory alloy pin puller are vertically arranged and the memory alloy pin puller is inserted into the locking pin; the microswitch seat and the microswitch are arranged at the bottom of the pin puller seat, and a pin puller spring is arranged in the pin puller seat to push the locking pin and unlock the turntable.

[0023] By adopting the above technical solution, a memory alloy pin puller that shrinks when heated can be deformed when powered on and heated, thereby disengaging from the locking pin, thereby disengaging from the locking pin and the locking rod, thereby achieving automatic locking and unlocking of the locking assembly.

[0024] Optionally, a reference mirror assembly is also fixed to the outside of the azimuth axis system assembly, and the reference mirror assembly includes a reference mirror seat, a reference mirror and a reference mirror cover, and the reference mirror is fixed to the reference mirror seat through the reference mirror cover.

[0025] By adopting the above technical solution, the position of the whole machine can be calibrated through the reference mirror assembly installed on the azimuth axis assembly, thereby greatly reducing the observation error. After the position of the whole machine changes, it can be called back and positioned through the reference mirror assembly, thereby further reducing the error during the use of the whole machine.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: The pitch axis assembly and the azimuth axis assembly can provide two-dimensional rotational motion of the telescope assembly. The telescope assembly is connected to the pitch axis assembly to realize the reception and transmission of light beams. The locking assembly is connected to the azimuth axis assembly to form a flexible lock for the telescope assembly. The reference mirror assembly is connected to the azimuth axis assembly to provide a position reference for optical adjustment. The whole machine adopts an L-shaped structure. The axis of the azimuth axis is located at the rotation center of the whole machine, so that its rotation envelope is minimized. The high-precision rotation between the azimuth axis assembly and the pitch axis assembly is used to make the two have a high orthogonality, so that the light beam path in the Kude optical path is basically consistent, achieving lightweight and miniaturization while meeting the high rotation accuracy requirements and reducing the influence of the structural size changes with temperature on the optical signal transmission; By installing the pitch grating disk, the user can read the specific rotation position of the pitch axis assembly through the data transmitted by the grating disk during the rotation of the pitch axis assembly, thereby increasing the operation and use accuracy of the whole machine; The memory alloy pin puller that shrinks when heated can be deformed when powered on and heated, thereby disengaging from the locking pin, thereby disengaging from the locking pin and the locking rod, thereby realizing automatic locking and unlocking of the locking assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the overall structure of a Kuder-type high-precision two-dimensional turntable of the present application is shown.

[0028] Figure 2 It is a cross-sectional view of a telescope assembly in an embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view of the pitch axis system assembly in an embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view of the azimuth shafting assembly in an embodiment of the present application.

[0031] Figure 5 This is a cross-sectional view of the locking assembly in the embodiment of the present application. Figure 1 .

[0032] Figure 6 This is a cross-sectional view of the locking assembly in the embodiment of the present application. Figure 2 .

[0033] Figure 7 It is a cross-sectional view of the reference mirror assembly in an embodiment of the present application.

[0034] Description of reference numerals: 100, angle adjustment mechanism; 1, telescope assembly; 11, primary mirror; 12, primary mirror seat; 13, telescope tube; 14, window seat; 15, window mirror; 16, secondary mirror seat; 17, secondary mirror gasket; 18, secondary mirror; 19, telescope adapter; 10, first reflector; 101, first reflector seat; 102, first reflector gasket; 103, star sensor; 2, pitch axis assembly; 21, first housing; 22, pitch bearing; 23, pitch axis; 24, pitch motor; 25, second reflector; 2 6. Second reflector seat; 27. Pitch grating disk; 28. Pitch counterweight; 3. Azimuth axis assembly; 31. Second housing; 32. Slip ring; 33. Azimuth axis; 34. Azimuth motor; 35. Azimuth grating; 36. Azimuth grating reading head; 4. Locking assembly; 41. Locking pin; 42. Pin puller seat; 43. Memory alloy pin puller; 44. Pin puller seat; 45. Pin puller spring; 46. Micro switch; 5. Reference mirror assembly; 51. Reference mirror seat; 52. Reference mirror; 6. Locking rod; 7. Grounding column. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0036] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0037] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0038] The following is combined with Figure 1-7 This application is described in further detail.

[0039] The embodiment of the present application discloses a Kude-type high-precision turntable. The Kude-type high-precision turntable includes a telescope assembly 1, an angle adjustment mechanism 100, a locking assembly 4, and a reference mirror assembly 5. The angle adjustment mechanism 100 includes a pitch axis assembly 2 and an azimuth axis assembly 3. The telescope assembly 1 is rotationally connected to the pitch axis assembly 2 along a horizontal axis, and the pitch axis assembly 2 is rotationally connected to the azimuth axis assembly 3 along a vertical axis. The locking assembly 4 is arranged on the azimuth axis assembly 3 to limit the rotation of the pitch axis assembly 2 and the azimuth axis assembly 3, and the reference mirror assembly 5 is arranged on the azimuth axis assembly 3 to provide a position reference for optical assembly adjustment. A locking rod 6 is arranged between the locking assembly 4 and the telescope assembly 1 to form a flexible lock.

[0040] The pitch axis assembly 2 and the azimuth axis assembly 3 can provide two-dimensional rotational movement of the telescope assembly 1. The telescope assembly 1 is connected to the pitch axis assembly 2 to realize the reception and transmission of light beams. The locking assembly 4 is connected to the azimuth axis assembly 3 to form a flexible lock for the telescope assembly 1. The reference mirror assembly 5 is connected to the azimuth axis assembly 3 to provide a position reference for optical adjustment.

[0041] The whole machine adopts an L-shaped structure, and the axis of the azimuth axis is located at the rotation center of the whole machine, so that its rotation envelope is minimized. The high-precision rotation between the azimuth axis assembly 3 and the pitch axis assembly 2 is utilized to make the two have high orthogonality, so that the light beam paths in the Kude optical path are basically consistent, achieving lightweight and miniaturization while meeting high rotation accuracy requirements and reducing the impact of structural size changes with temperature on optical signal transmission.

[0042] As a preferred embodiment, the telescope assembly 1 is composed of a primary mirror 11, a primary mirror seat 12, a telescope tube 13, a window seat 14, a window mirror 15, a secondary mirror seat 16, a secondary mirror gasket 17, a secondary mirror 18, a telescope adapter seat 19, a reflector 10, a reflector seat 101, a reflector gasket 102 and a star sensor 103. The primary mirror seat 12 is made of 30% aluminum-based silicon carbide, which has the advantages of low thermal expansion coefficient, large specific stiffness, good processing stability, etc., and has good thermal matching with the primary mirror 11; the primary mirror 11 and the primary mirror seat 12 are connected by adhesive, and the thickness of the adhesive layer is controlled to a certain extent, which can offset the structural size changes caused by temperature changes, thereby ensuring the stability of the surface shape of the primary mirror 11.

[0043] Furthermore, the telescope tube 13 uses a carbon fiber material with a smaller thermal expansion coefficient as a base material, so that the structural dimensions between the primary mirror 11 and the secondary mirror 18, and between the secondary mirror 18 and the first reflector 10 are least affected by temperature changes, further improving the stability of beam transmission. The first reflector 10 is fixed to the first reflector seat 101 by gluing, and the angle and distance are adjusted by a reflector gasket 102 to eliminate errors introduced by processing or adjustment. The two ends of the telescope adapter seat 19 are respectively connected to the telescope seat and the pitch axis assembly 2 through the shaft hole matching, and the coincidence of the pitch rotation axis and the optical axis is achieved by selecting a suitable matching tolerance.

[0044] The pitch axis assembly 2 includes a first shell 21 for mounting the telescope assembly 1. A plurality of pitch bearings 22 are arranged in the first shell 21. A pitch axis 23 assembled with the pitch bearings 22 is arranged on the first shell 21. The telescope assembly 1 is rotationally connected to the first shell 21 through the pitch axis 23. A pitch motor 24 is arranged in the first shell 21 to drive the pitch axis 23 and the telescope assembly 1 to rotate.

[0045] The pitch axis 23 is assembled and supported by using multiple pitch bearings 22, so that the pitch axis assembly 2 is smoother in the process of driving the telescope assembly 1 to rotate. At the same time, the multiple pitch bearings 22 are used to increase the coaxiality of the pitch axis 23 and the first shell 21, which greatly reduces the centering of the telescope assembly 1 during rotation and reduces observation errors.

[0046] As a preferred embodiment, the pitch axis assembly 2 further includes a second mirror 25 . A second mirror seat 26 for mounting the second mirror 25 is disposed in the first shell 21 . The second mirror seat 26 is coaxially disposed with the first shell 21 and rotates synchronously with the telescope assembly 1 .

[0047] The second mirror 25 can change the direction of light in the first shell 21, so that it is more convenient for the user to observe through the second mirror 25. At the same time, the second mirror seat 26 rotates coaxially with the first shell 21, so that the user can continue to observe during the rotation of the second mirror 25.

[0048] As a preferred embodiment, the pitch axis assembly 2 further includes a pitch grating disk 27 , which is fixedly disposed in the first housing 21 , and a pitch grating cover covering the pitch grating disk 27 is also disposed in the first housing 21 .

[0049] By installing the pitch grating disk 27, during the rotation of the pitch axis assembly 2, the user can read the specific rotation position of the pitch axis assembly 2 through the data transmitted by the grating disk, thereby increasing the operation and use accuracy of the whole machine.

[0050] As a preferred embodiment, a pitch counterweight 28 is provided at the rear end of the first shell 21 .

[0051] The pitch counterweight 28 disposed at the rear end of the first shell 21 increases the mass of the rear end of the first shell 21 and changes the overall center of gravity of the pitch axis assembly 2. By adjusting the weight and position of the pitch counterweight 28, the static and dynamic balance of the entire machine can be achieved.

[0052] It should be noted that the pitch axis 23 uses 30% aluminum-based silicon carbide to match the thermal expansion coefficient of the bearing material and meet the requirements of the shaft support stiffness. The bearings are installed back to back using angular contact bearings, one end is fixed and the other end is floating, and the matching form is a small interference fit to improve the shaft support stiffness and rotation accuracy. The drive is driven by a DC motor, which has the advantages of good starting and speed regulation performance, little influence by electromagnetic interference, and simple structure. The driving torque is directly transmitted to the shaft without passing through the reduction mechanism, which further reduces the weight of the whole machine. The position sensor uses an absolute grating encoder with high resolution and high system accuracy, and can accurately feedback position information. The second mirror 25 is glued to the second mirror seat 26, so that the second mirror 25 surface is at an angle of 45° with the pitch rotation axis, and the light beam is reflected from the internal hole of the turntable. The pitch counterweight 28 is screwed to the first shell 21, and the static and dynamic balance of the whole machine is achieved by adjusting the weight and position of the pitch counterweight 28.

[0053] As a preferred embodiment, the azimuth axis system assembly 3 includes a second shell 31, a slip ring 32, an azimuth axis 33 and an azimuth motor 34. The slip ring 32 is fixedly arranged at the top of the azimuth axis 33. The azimuth axis 33 is rotated by the azimuth motor 34 at one end of the second shell 31 to drive the pitch axis system assembly 2 to flip.

[0054] The azimuth axis 33 is used to make the coaxiality of the azimuth axis assembly 3 and the pitch axis assembly 2 higher, thereby improving the rotation concentricity of the pitch axis assembly 2. The structure of the azimuth axis assembly 3 can adopt the same structure as the pitch axis assembly 2, so that the rotation of the azimuth axis assembly 3 is smoother.

[0055] As a preferred embodiment, an azimuth grating 35 is provided in the second housing 31 to determine the azimuth position, and an azimuth grating 35 reading head is provided in the second housing 31 to read the grating data.

[0056] By installing the azimuth grating 35, during the rotation of the azimuth axis assembly 3, the data transmitted by the azimuth grating 35 can be used to allow the user to read the specific rotational position of the azimuth axis assembly 3, thereby increasing the operation and use accuracy of the entire machine.

[0057] As a preferred embodiment, a grounding post 7 is disposed outside the second housing 31 to conduct static electricity generated by the turntable.

[0058] By utilizing the conductive effect of the grounding column 7, static electricity generated during the operation of the turntable or static electricity encountered during the operation of the turntable can be conducted to the outside, thereby avoiding the influence of static electricity on the turntable and preventing the turntable from being damaged by static electricity.

[0059] As a preferred embodiment, the locking assembly 4 includes a locking pin 41, a pin puller seat 44 and a memory alloy pin puller 43 that can shrink when exposed to heat. A locking rod 6 is arranged between the locking pin 41 and the pitch axis assembly 2. One end of the locking rod 6 is slidably connected to the locking pin 41, and the other end of the locking rod 6 is fixedly connected to the telescope. The locking pin 41 and the memory alloy pin puller 43 are slidably connected to the pin puller seat 44, and the locking pin 41 and the memory alloy pin puller 43 are vertically arranged and the memory alloy pin puller 43 is inserted into the locking pin 41. A micro switch 46 seat and a micro switch 46 are arranged at the bottom of the pin puller seat 44, and a pin puller spring 45 is arranged in the pin puller seat 44 to push the locking pin 41 and unlock the turntable.

[0060] The control system controls the memory alloy in the memory alloy pin puller 43 through electrical signals, and heats it up to expand it, causing the internal pin to be pulled and contracted, and then the locking pin 41 retracts into the cavity of the pin puller seat 44 under the elastic force of the pin puller spring 45. A micro switch 46 is also installed at the bottom of the pin puller seat 44. The bottom surface of the locking pin 41 touches the micro switch 46, and the micro switch 46 sends an unlocking success signal, that is, the whole machine is unlocked successfully and can perform two-dimensional rotational movement.

[0061] As a preferred embodiment, a reference mirror assembly 5 is also fixed to the outside of the azimuth axis assembly 3, and the reference mirror assembly 5 includes a reference mirror seat 51, a reference mirror 52, and a reference mirror 52 cover, and the reference mirror 52 is fixed to the reference mirror seat 51 through the reference mirror 52 cover. The reference mirror 52 is connected to the reference mirror seat 51 by adhesive, and the reference mirror seat 51 is adjusted by repairing the position and angle of the reference mirror 52, and the reference mirror 52 cover plays a role in dust prevention and protects the surface of the reference mirror 52 to be smooth.

[0062] By installing the reference mirror assembly 5 on the azimuth axis assembly 3, the position of the whole machine can be calibrated, thereby greatly reducing the observation error. After the position of the whole machine changes, it can be adjusted and positioned by the reference mirror assembly 5, thereby further reducing the error during the use of the whole machine.

[0063] The present invention greatly reduces the weight of the whole machine and improves the mechanical resistance of the whole machine by reasonably selecting materials; and because the main material has good thermal matching, the azimuth and pitch axis system assembly 2 has little effect on the optical system due to temperature changes. The optical lens and the structural parts in the telescope assembly 1 are also matched with materials with similar thermal expansion coefficients to reduce the impact of temperature changes on the optical system. The mechanical structure of the whole machine is reasonably laid out and adopts an L-shaped structure. The azimuth rotation axis is basically located at the rotation center of the whole machine, so that its rotation envelope is minimized. At the same time, the weight is reasonably distributed, and the center of mass is basically located at the intersection of the azimuth rotation axis and the pitch rotation axis. The azimuth axis system assembly 3 and the pitch axis system assembly 2 have high rotation accuracy, and the combination of the two has high orthogonality and is basically consistent with the beam path in the Kude optical path. A direct drive motor is used in conjunction with an absolute grating encoder for driving and feedback. This solution greatly improves the control accuracy of the axis system and achieves high rotation accuracy of the axis system.

[0064] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A Kudet-type high-precision turntable, comprising a telescope assembly, characterized in that: It also includes an angle adjustment mechanism, a locking assembly, and a reference mirror assembly; The angle adjustment mechanism: The angle adjustment mechanism includes a pitch axis assembly and an azimuth axis assembly, the telescope assembly is rotationally connected to the pitch axis assembly along a horizontal axis, and the pitch axis assembly is rotationally connected to the azimuth axis assembly along a vertical axis; The locking assembly: The locking assembly is arranged on the azimuth axis assembly to limit the rotation of the pitch axis assembly to the azimuth axis assembly; The reference mirror assembly: The reference mirror assembly is arranged on the azimuth axis assembly to provide a position reference for optical assembly adjustment.

2. The Kudet type high precision turntable according to claim 1, characterized in that: The pitch axis system assembly includes a first shell for installing the telescope assembly, a plurality of pitch bearings are arranged in the first shell, a pitch axis assembled with the pitch bearings is arranged on the first shell, the telescope assembly is rotatably connected to the first shell through the pitch axis, and a pitch motor is arranged in the first shell to drive the pitch axis and the telescope assembly to rotate.

3. The Kudet type high precision turntable according to claim 2, characterized in that: A pitch counterweight is arranged at the rear end of the first shell.

4. The Kudet type high precision turntable according to claim 2, characterized in that: The pitch axis system assembly also includes two mirrors. A two mirror seat for mounting the two mirrors is arranged in the first shell. The two mirror seat is coaxially arranged with the first shell and rotates synchronously with the telescope assembly.

5. The Kudet type high precision turntable according to claim 2, characterized in that: The pitch axis system assembly also includes a pitch grating disk, which is fixedly arranged in the first shell. A pitch grating cover covering the pitch grating disk is also arranged in the first shell.

6. The Kudet type high precision turntable according to claim 1, characterized in that: The azimuth axis system assembly includes a second shell, a slip ring, an azimuth axis and an azimuth motor. The slip ring is fixedly arranged at the top end of the azimuth axis. The azimuth axis is rotatably arranged at one end of the second shell through the azimuth motor to drive the pitch axis system assembly to flip.

7. The Kudet type high precision turntable according to claim 6, characterized in that: An azimuth grating is arranged in the second shell to determine the azimuth position, and an azimuth grating reading head is arranged in the second shell to read the grating data.

8. The Kudet type high precision turntable according to claim 6, characterized in that: A grounding post is disposed outside the second shell to conduct static electricity generated by the turntable.

9. The Kudet type high precision turntable according to claim 1, characterized in that: The locking assembly includes a locking pin, a pin puller seat and a memory alloy pin puller that can shrink when exposed to heat. A locking rod is arranged between the locking pin and the pitch axis system assembly. One end of the locking rod is slidably connected to the locking pin, and the other end of the locking rod is fixedly connected to the pitch axis system assembly. The locking pin and the memory alloy pin puller are slidably connected to the pin puller seat, and the locking pin and the memory alloy pin puller are vertically arranged and the memory alloy pin puller is inserted into the locking pin. A micro switch seat and a micro switch are arranged at the bottom of the pin puller seat, and a pin pulling spring is arranged in the pin puller seat to push the locking pin and unlock the turntable.

10. The Kudden-type high-precision turntable according to claim 1, characterized in that: A reference mirror assembly is also fixed outside the azimuth axis system assembly. The reference mirror assembly includes a reference mirror seat, a reference mirror and a reference mirror cover. The reference mirror is fixed to the reference mirror seat through the reference mirror cover.

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