A detection flip device for large-aperture reflector

Abstract

The present invention relates to the field of reflector detection technology, and specifically provides a detection and flipping device for a large-aperture reflector, comprising a connecting plate, a corner column, a vertical column, and a base, wherein the reflector is mounted on the connecting plate, the flat end face of the corner column is rotationally connected to the connecting plate via an axial rotating shaft, the 45-degree inclined surface of the corner column is rotationally connected to the 45-degree inclined surface of the vertical column via a 45-degree rotating shaft, the flat end face of the vertical column is rotationally connected to the base via an axial rotating shaft, the 45-degree rotating shaft enables the reflector to be switched between a horizontal posture and a vertical posture, and the two axial rotating shafts and the 45-degree inclined surface enable precise adjustment of the azimuth, roll angle, and pitch angle of the reflector. The present invention has the advantages of simple structure, small footprint, high rigidity, and the ability to automatically flip by motor drive, and avoids the process of manually raising the reflector from a horizontal position, thereby reducing the safety risk of flipping when detecting a large-aperture reflector.

Description

Technical Field

[0001] The invention belongs to the technical field of reflector detection, and in particular relates to a detection flipping device for a large-aperture reflector. Background Art

[0002] Large-aperture mirrors have crucial applications in numerous fields. For example, in astronomy, large telescopes rely on large-aperture mirrors to collect more light, enabling observation of more distant galaxies and celestial bodies, providing crucial data support for astronomical research. In laser technology, large-aperture mirrors are core components in high-power laser systems, used to precisely control the propagation direction and focus of lasers and are widely used in materials processing, scientific research, and other areas. Furthermore, large-aperture mirrors play an indispensable role in high-tech fields such as aerospace. Guidance systems and space exploration equipment, for example, rely on high-performance large-aperture mirrors.

[0003] Large-aperture reflectors have extremely high requirements for surface shape accuracy and assembly positioning accuracy. For surface shape accuracy, the RMS value is usually required to be ≤λ / 20, λ=632.8nm; for assembly positioning accuracy, the angular deviation is usually required to be ≤3arcsec.

[0004] The traditional large-aperture mirror inspection process requires mirror inspection - disassembly and flipping - secondary clamping - re-inspection and other processes. The following problems exist during the inspection process: First, since the weight of the large-aperture mirror body is usually ≥200kg, the physical flipping process requires the collaboration of multiple people, which makes flipping the mirror difficult and there is a risk of collision damage during the flipping process; Second, after the mirror is flipped, manual fixing is generally used to keep the mirror upright. This process is complicated to operate and has high safety risks. In addition, this method results in low assembly positioning accuracy, and the repeated positioning error is usually in the millimeter level, which is difficult to meet the micron-level inspection requirements.

[0005] To solve the above problems, some mirror flipping solutions have been proposed. Existing solutions usually use optical adjustment frames to assist in mirror flipping, but they generally have complex structures, large sizes, and cannot achieve automatic flipping, and still require manual control.

[0006] For example, the Chinese invention patent, CN104166213A, published on November 26, 2024, and titled "Large-Aperture Optical Optimization Mount," utilizes a frame-type structure. During the inspection of large-aperture mirrors exceeding 2 meters, the mirror must be manually raised from a horizontal position, or lifted by a crane on one side to achieve horizontal alignment, and then manually suspended from the frame. This lacks an automatic flip function. This process poses a significant risk to the large-aperture mirror, and the mount only offers pitch adjustment, lacking azimuth and roll adjustments. This results in weak overall structural rigidity.

[0007] For example, the Chinese invention patent with publication number CN111948782A and publication date November 17, 2020, titled "A flip detection device for a large-aperture reflector assembly", although it has a flip function, does not have the ability to adjust the reflector, resulting in poor assembly positioning accuracy, and adopts a frame structure with complex structure and large size, which is not conducive to reflector detection.

[0008] Therefore, there is an urgent need to propose a detection flipping device for a large-aperture reflector that has a simple structure, a small size, high rigidity, and can realize reflector flipping and high-precision adjustment. Summary of the Invention

[0009] In view of this, the present invention aims to provide a detection and flipping device for large-aperture reflectors, which realizes 90-degree flipping and posture adjustment of the reflector through a combination of three rotating axes, solving the problems of complex structure and inability to realize automatic flipping of traditional reflector detection and flipping devices.

[0010] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0011] The present invention provides a detection and flipping device for a large-aperture reflector, comprising:

[0012] Connecting plates for mounting reflectors, as well as corner posts, vertical posts and bases;

[0013] The first end face of the corner column is a plane, and the first end face of the corner column is rotatably connected to the connecting plate via a first axial rotation axis; the second end face of the corner column is a 45-degree inclined surface;

[0014] The first end face of the vertical column is a 45-degree inclined surface, and is rotatably connected to the second end face of the corner column through a 45-degree rotation axis; the second end face of the vertical column is a plane, and is rotatably connected to the base through a second axial rotation axis.

[0015] Preferably, the corner column is an L-shaped right-angled corner column.

[0016] Preferably, the corner columns and the vertical columns are both hollow cavity column structures.

[0017] Preferably, the first axial rotation axis, the second axial rotation axis and the 45-degree rotation axis are all turntable bearings.

[0018] Preferably, the first axial rotating shaft, the second axial rotating shaft and the 45-degree rotating shaft are driven by worm gears respectively.

[0019] Preferably, the worm gear for driving the first axial rotating shaft, the worm gear for driving the second axial rotating shaft, and the worm gear for driving the 45-degree rotating shaft all have a self-locking function.

[0020] Preferably, the worm gear is driven by a motor, and the first axial rotation shaft, the second axial rotation shaft and the 45-degree rotation shaft are driven to rotate respectively by driving the worm gear.

[0021] Preferably, the reflector is flipped 90 degrees by driving the 45-degree rotation axis to rotate.

[0022] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0023] The present invention utilizes a three-axis design, enabling mirror flipping and high-precision adjustment of multiple degrees of freedom through rotation. During mirror loading, the mirror can be placed on the detection flipping device by horizontally hoisting it. The 45-degree rotation of the axis then drives the mirror to flip 90 degrees, changing it from a horizontal to a vertical position. This eliminates the need to manually raise the mirror from a horizontal position, reducing the safety risks associated with flipping large-aperture mirrors. Furthermore, the present invention has a simple structure, occupies a small space, and offers high rigidity. Automatic flipping can be achieved through motor drive, improving mirror flipping efficiency and safety.

[0024] The present invention can also realize azimuth and roll adjustment of the reflector through two axial rotation shafts, and can realize pitch adjustment of the reflector in conjunction with 45-degree rotation of the rotation axis, solving the problem that the existing flip mechanism cannot realize multi-degree-of-freedom adjustment of the reflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 2. It is a horizontal posture structure diagram of a detection flipping device for a large-aperture reflector provided in accordance with an embodiment of the present invention;

[0027] Figure 2 1 is a diagram showing the vertical posture structure of a detection flipping device for a large-aperture reflector provided according to an embodiment of the present invention.

[0028] Reference numerals include:

[0029] Reflector 1, connecting plate 2, first axial rotation shaft 3, corner column 4, 45-degree rotation axis 5, vertical column 6, second axial rotation shaft 7, base 8. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation to the present invention. Similar elements in different embodiments use associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present invention to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present invention are not shown or described in the specification. This is to avoid the core part of the present invention being overwhelmed by too much description. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other to form various implementation methods. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various orders in the description and the drawings are only for the purpose of clearly describing a certain embodiment and are not intended to be a required order, unless otherwise specified that a certain order must be followed.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] See also Figure 1 and Figure 2 In one embodiment of the present invention, a large-aperture reflector detection flipping device is provided for realizing a 90-degree flip of the reflector 1 during the large-aperture reflector detection process, and performing the following steps: Figure 1 The horizontal posture and Figure 2 The flip detection device specifically includes: a reflector 1, a connecting plate 2, a first axial rotation axis 3, a corner column 4, a 45-degree rotation axis 5, a vertical column 6, a second axial rotation axis 7, and a base 8. The reflector 1 is a large-aperture reflector to be inspected, having a large diameter and a heavy weight, typically weighing ≥ 200 kg.

[0036] The connecting plate 2 is the installation base of the reflector 1. During the inspection process of the reflector 1, the reflector 1 is connected to the front side of the connecting plate 2. The connecting plate 2 can provide a stable and reliable connection to ensure that the reflector 1 will not loosen or shift during the subsequent flipping and adjustment process.

[0037] The corner column 4 is an L-shaped right-angled corner column, which plays the role of supporting and flipping the reflector 1. The first end face of the corner column 4 is a plane, which is rotatably connected to the front of the connecting plate 2 through the first axial rotating shaft 3. The corner column 4 is a hollow cavity column structure. While ensuring sufficient rigidity, the overall weight is reduced as much as possible, which is conducive to improving the portability and flexibility of the entire device. A motor and a worm gear transmission mechanism are set near the first end face in the cavity of the corner column 4. The worm gear is driven by the motor to rotate, and the worm gear drives the first axial rotating shaft 3 to rotate, so that the connecting plate 2 drives the reflector 1 to rotate relative to the first end face of the corner column 4. The worm gear can also be designed with a self-locking function to improve rotation stability. The second end face of the corner column 4 is a 45-degree inclined surface.

[0038] The vertical column 6 also has a hollow cavity column structure. The upper end face of the vertical column 6 is a 45-degree inclined surface, which is adapted to the 45-degree inclined surface of the corner column 4. The 45-degree inclined surface of the vertical column 6 and the 45-degree inclined surface of the corner column 4 are rotationally connected via a 45-degree rotating shaft 5. A motor and worm gear transmission mechanism are provided in the cavity of the vertical column 6 near the 45-degree inclined surface. The motor drives the worm gear to rotate, and the worm gear drives the 45-degree rotating shaft 5 to rotate, thereby rotating the corner column 4 relative to the vertical column 6. The worm gear can also be designed with a self-locking function to improve rotational stability. The lower end face of the vertical column 6 is flat.

[0039] The base 8 is the basic support part of the entire device. It adopts a three-point support structure to evenly distribute the weight and force of the device, ensuring that the adjustment frame as a whole has good stability and anti-overturning ability, and providing a stable platform for the detection and adjustment of the reflector 1. The base 8 is rotatably connected to the lower end face of the vertical column 6 via the second axial shaft 7. A motor and worm gear transmission mechanism is set in the base 8 near the lower end face of the vertical column 6. The motor drives the worm gear to rotate, and the worm gear drives the second axial shaft 7 to rotate, so that the solid corner column 4 rotates relative to the vertical column 6. Among them, the worm gear can also be designed with a self-locking function to improve rotation stability.

[0040] To enhance rotational stability, the first axial rotating shaft 3, the 45-degree rotating shaft 5, and the second axial rotating shaft 7 all utilize large, high-rigidity turntable bearings and are equipped with a worm gear drive mechanism. These large, high-rigidity turntable bearings can withstand heavy loads, ensuring stability and precision during rotation. The worm gear drive mechanism, with its advantages of self-locking properties, high transmission ratio, and strong load capacity, provides high-precision rotation control and high drive torque, ensuring smooth flipping and adjustment of the reflector 1 and meeting the precision requirements for large-aperture reflector inspection and adjustment.

[0041] Based on the above structure, it is applied to the reflector detection process. The specific process is as follows:

[0042] First, the connecting plate 2 is turned horizontally by rotating the shaft 5 by 45 degrees. Figure 1 The reflector 1 is hoisted horizontally and positioned on the connecting plate 2, and the reflector 1 and the connecting plate 2 are connected and fixed.

[0043] According to the detection requirements, the corresponding rotation axis is operated to make adjustments. When the reflector 1 needs to be flipped, the worm gear is driven by the motor to rotate, and the 45-degree rotation axis 5 is driven to rotate so that the first end face of the corner column 4 is in a vertical posture, that is, the 45-degree rotation axis 5 rotates 90 degrees to drive the reflector 1 to rotate as shown in the figure. Figure 1 The horizontal state shown is converted to Figure 2 Vertical attitude shown.

[0044] When adjusting the posture of the reflector 1, the roll angle of the reflector 1 is adjusted by rotating the first axial rotation shaft 3, and the azimuth angle of the reflector 1 is adjusted by rotating the second axial rotation shaft 7. Combined with the fine-tuning of the 45-degree rotation axis 5, the reflector 1 can be precisely adjusted in the pitch direction, and finally the reflector 1 can reach the required high-precision posture to meet the needs of optical detection.

[0045] In order to achieve automatic flipping and position adjustment of the reflector 1, high-precision encoders and controllers can be added to the drive parts of the first axial rotation axis 3, the 45-degree rotation axis 5, and the second axial rotation axis 7 to monitor the rotation angle and position of the first axial rotation axis 3, the 45-degree rotation axis 5, and the second axial rotation axis 7 in real time, and perform precise closed-loop control through the controller. By precisely controlling the movement of each rotation axis through the controller, automatic flipping and high-precision position adjustment of the reflector 1 are achieved, greatly improving the detection efficiency and automation level, reducing manual intervention, and avoiding the process of manually standing the reflector 1 from a horizontal position during traditional reflector detection. This reduces the risk of error and provides strong support for the optical detection of large-aperture reflectors 1.

[0046] In short, the above description is only a preferred embodiment of this specification and is not intended to limit the scope of protection of this specification. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this specification shall be included in the scope of protection of this specification.

[0047] The systems, devices, modules, or units described in one or more of the above embodiments may be implemented by a computer chip or entity, or by a product having a certain function. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0048] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0049] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0050] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

Claims

1. A detection and flipping device for a large-aperture reflector, characterized in that: include: Connecting plates for mounting reflectors, as well as corner posts, vertical posts and bases; The first end face of the corner column is a plane, and the first end face of the corner column is rotatably connected to the connecting plate via a first axial rotation shaft; the second end face of the corner column is a 45-degree inclined surface; and the corner column is an L-shaped right-angle corner column; The first end face of the vertical column is a 45-degree inclined surface, and is rotatably connected to the second end face of the corner column through a 45-degree rotation axis; the second end face of the vertical column is a plane, and is rotatably connected to the base through a second axial rotation axis, and the reflector is flipped 90 degrees by driving the 45-degree rotation axis to rotate.

2. The detection and flipping device for a large-aperture reflector according to claim 1, characterized in that: The corner columns and the vertical columns are both hollow cavity column structures.

3. The detection and flipping device for a large-aperture reflector according to claim 1, characterized in that: The first axial rotating shaft, the second axial rotating shaft and the 45-degree rotating shaft are all turntable bearings.

4. The detection and flipping device for a large-aperture reflector according to claim 1, characterized in that: The first axial rotating shaft, the second axial rotating shaft and the 45-degree rotating shaft are driven by worm gears respectively.

5. The detection and flipping device for a large-aperture reflector according to claim 4, characterized in that: The worm gear for driving the first axial rotating shaft, the worm gear for driving the second axial rotating shaft, and the worm gear for driving the 45-degree rotating shaft all have a self-locking function.

6. The detection and flipping device for a large-aperture reflector according to claim 4, characterized in that: The worm gear is driven by a motor, and the worm gear is driven to rotate the first axial rotation shaft, the second axial rotation shaft and the 45-degree rotation shaft respectively.

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