Cloud type support device for large aperture optical standard test mirror

Abstract

The application discloses a floating cloud type support device for a large-aperture optical standard testing mirror, wherein the large-aperture optical standard testing mirror is installed on a support through a mirror body installation frame, and the floating cloud type support device comprises a floating cloud type unloading mechanism, a back support mechanism and a tangential rod mechanism. The floating cloud type unloading mechanism is responsible for unloading the standard mirror and does not provide any degree of freedom limitation; the back support mechanism and the tangential rod mechanism respectively limit three degrees of freedom of the standard mirror but do not provide any redundant force, so as to determine the spatial position of the standard mirror. The floating cloud type support device for the large-aperture optical standard testing mirror can completely unload the large-aperture standard testing mirror and provide six degrees of freedom "floating cloud" type support, and provides guarantee for realizing high requirement surface type and repeatable and reliable testing of optical mirrors with large mass, which is very important for mirror processing and manufacturing industries with high price and large mass and large scale.

Description

Technical Field

[0001] This invention relates to a support device for a large-aperture optical standard examination mirror, and more particularly to a cloud-like support device capable of completely unloading the large-aperture standard examination mirror and providing six degrees of freedom. Background Technology

[0002] The precision and efficiency of grinding large-aperture optical mirrors have always relied on high-precision and reliable standard inspection mirrors. Large-aperture standard inspection mirrors are heavy and expensive. Their processing and inspection must minimize risks, ensure reliable support structures, facilitate efficiency and convenience, reduce manufacturing costs, and provide user-friendly assembly and adjustment platforms and systems for repeated testing. They also offer good repeatability of test results, require mature and convenient assembly and adjustment technologies, and have relatively limited requirements for equipment and personnel, resulting in quick turnaround times. Currently, the development costs of existing large-aperture optical mirror standard inspection mirror supports in various research platforms and manufacturing units are relatively high, assembly and adjustment are complex, and the requirements for the equipment, instruments, and technical personnel used are high. The development cycle is long, and there are many uncertainties regarding test repeatability.

[0003] Large-aperture standard examination mirrors are heavy, and there are various unloading methods, even those based on the same concept, with different implementation paths. Some employ flexible rod support technology, providing three degrees of freedom, and then using high-precision assembly and adjustment to determine the spatial position of the large-aperture standard mirror. This requires extremely high technical skills from the assembly and adjustment equipment and personnel, significantly increasing costs. Others provide six degrees of freedom, but the unloading is not complete, achieving the elimination of excess force through the balance of multiple forces. Back supports also vary, with most having excess force, which is then removed through coupling balance. This results in complex technical paths, high manufacturing costs, and poor repeatability during assembly and adjustment. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, the present invention provides a floating support device for a large-aperture optical standard examination mirror.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A floating-cloud-style support device for a large-aperture optical standard examination mirror, wherein the large-aperture optical standard examination mirror is mounted on a support via a mirror mounting frame, and the floating-cloud-style support device includes a floating-cloud-style unloading mechanism, a back support mechanism, and a tangential rod mechanism; wherein:

[0007] The floating cloud-type unloading mechanism is arranged in several parts along the outer circumference of the large-aperture optical standard examination mirror. It includes a force balance lever shaft that is mounted on the mirror body mounting frame via a standard mirror fulcrum self-aligning ball bearing. One end of the force balance lever shaft is equipped with a balance weight located on the back of the mirror body mounting frame, and the other end is equipped with a standard mirror end force point self-aligning ball bearing located on the front of the mirror body mounting frame. The standard mirror end force point self-aligning ball bearing is connected to a longitudinally extending connecting rod via a standard mirror end force point linear bearing. The connecting rod is connected to the side of the large-aperture optical standard examination mirror.

[0008] The back support mechanism includes a flexible rod. One end of the flexible rod is mounted on the back of the mirror body mounting frame via a self-aligning ball bearing at the mirror chamber end, and the other end is connected to the back of the large-aperture optical standard examination mirror via a ball joint connector.

[0009] The tangential rod mechanism includes a flexible tangential rod that extends tangentially along the large-aperture optical standard examination mirror. One end of the flexible tangential rod is fixed to the front of the mirror body mounting frame, and the other end is connected to the side of the large-aperture optical standard examination mirror.

[0010] Furthermore, the floating unloading mechanism is used to unload the large-aperture optical standard examination mirror without providing any degree of freedom restriction, thus placing the large-aperture optical standard examination mirror in a floating state; the back support mechanism is used to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: Z-axis displacement, rotation around the Y-axis, and rotation around the X-axis, but without providing any extra force; the tangential rod mechanism is used to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the Z-axis, X-axis displacement, and Y-axis displacement, but without providing any extra force.

[0011] Furthermore, the floating cloud-type unloading mechanism is symmetrically arranged on the left and right sides of the longitudinal central axis of the large-aperture optical standard examination mirror, and the floating cloud-type unloading mechanism is symmetrically arranged on the upper and lower sides of the transverse central axis of the large-aperture optical standard examination mirror.

[0012] Furthermore, several back support mechanisms are evenly arranged along the circumferential direction.

[0013] Furthermore, the floating cloud-like support device is used for support, and the installation and adjustment status and test results can be repeatedly checked and verified each time.

[0014] Furthermore, the self-aligning ball bearing at the end of the standard mirror provides two degrees of freedom for the large-aperture optical standard inspection mirror to rotate around the X-axis and around the Y-axis; the linear bearing at the end of the standard mirror provides one degree of freedom for the large-aperture optical standard inspection mirror to move along the Z-axis; and the self-aligning ball bearing at the fulcrum of the standard mirror provides three degrees of freedom for the large-aperture optical standard inspection mirror to rotate around the Z-axis, move along the X-axis, and move along the Y-axis.

[0015] Furthermore, the counterweight is adjusted by the length ratio of the force balancing lever shaft to achieve complete balance and thus unload the mass of the large-aperture optical standard testing mirror.

[0016] Furthermore, the flexible rod and the ball joint work together to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the X-axis, rotation around the Y-axis, and displacement around the Z-axis. The self-aligning ball bearing at the end of the flexible rod chamber provides the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the Z-axis, displacement around the X-axis, and displacement around the Y-axis.

[0017] Furthermore, several flexible tangential rods are arranged tangentially around the circumference of the large-aperture optical standard examination mirror to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the Z-axis, displacement along the X-axis, and displacement along the Y-axis.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The floating cloud-like support device for large-aperture optical standard testing mirrors of this invention can completely unload large-aperture standard testing mirrors and provide six degrees of freedom "floating cloud" support. This ensures high-requirement surface shape, repeatability, and reliable testing of large-mass optical mirrors, which is crucial for the expensive processing and manufacturing of large-mass and large-scale mirrors. The back support mechanism and tangential rod mechanism are relatively easy to implement, highly operable, cost-controllable, and the required equipment and personnel skills are easily met, with a controllable development cycle. Attached Figure Description

[0020] Figure 1 This is a front structural schematic diagram of the cloud-shaped support device for the large-aperture optical standard testing mirror of the present invention.

[0021] Figure 2 This is a schematic diagram of the back structure of the cloud-shaped support device for the large-aperture optical standard testing mirror of the present invention.

[0022] Figure 3 This is a schematic diagram of the floating cloud-type unloading mechanism;

[0023] Figure 4 This is a schematic diagram of the back support mechanism;

[0024] Figure 5 This is a schematic diagram of a flexible tangential rod.

[0025] The diagram is labeled as follows: 1. Large-diameter standard mirror; 2. Floating cloud-type unloading mechanism; 2-1. Self-aligning ball bearing at the end of the standard mirror; 2-2. Linear bearing at the end of the standard mirror; 2-3. Self-aligning ball bearing at the fulcrum of the standard mirror; 2-4. Force balance lever shaft; 2-5. Counterweight; 2-6. Connecting rod; 3. Tangential rod mechanism; 3-1. Flexible tangential rod; 4. Back support mechanism; 4-1. Ball joint connector; 4-2. Flexible rod; 4-3. Self-aligning ball bearing at the end of the flexible rod mirror chamber; 5. Support; 6. Mirror mounting frame. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] The large-aperture optical standard mirror, also known as the calibration mirror, is a core and critical component. Its support must perfectly conform to theoretical calculations, with no excess force. Each setup, adjustment, and test result must be repeatedly checked and verified. This embodiment describes a floating-cloud-like support device for a large-aperture optical standard inspection mirror. Figure 1-2 As shown, the large-aperture standard mirror 1 is installed within the mirror mounting frame 6, which is rotatably mounted on the support 5. The floating cloud-type support device mainly includes a floating cloud-type unloading mechanism 2, a back support mechanism 4, and a tangential rod mechanism 3. Wherein:

[0028] Floating cloud-type unloading mechanism 2 Figure 3 As shown, the floating cloud-type unloading mechanism 2 is arranged in several (specifically 16 in this embodiment) along the outer circumference of the large-diameter standard mirror 1, including the standard mirror end self-aligning ball bearing 2-1, the standard mirror end self-aligning linear bearing 2-2, the standard mirror fulcrum self-aligning ball bearing 2-3, the force balance lever shaft 2-4, and the balance weight 2-5. The force balancing lever shaft 2-4 is mounted on the mirror body mounting frame 6 via the standard mirror fulcrum self-aligning ball bearing 2-3. A counterweight 2-5 is mounted at the rear end of the force balancing lever shaft 2-4. The counterweight 2-5 is located on the back of the mirror body mounting frame 6. The counterweight 2-5 is adjusted according to the length ratio of the force balancing lever shaft 2-4 to achieve complete balance and thus unload the mass of the large-aperture standard mirror 1. A standard mirror end force point self-aligning ball bearing 2-1 is mounted at the front end of the force balancing lever shaft 2-4. The standard mirror end force point self-aligning ball bearing 2-1 is located on the front of the mirror body mounting frame 6. The standard mirror end force point self-aligning ball bearing 2-1 is connected to the connecting rod 2-6 via the standard mirror end force point linear bearing 2-2. The connecting rods 2-6 are all longitudinally extended, and the ends of the connecting rods 2-6 are all connected to the side of the large-aperture standard mirror 1.

[0029] The floating cloud-type unloading mechanism 2 is used to unload the large-aperture standard mirror 1 without providing any degree of freedom restriction, so that the large-aperture standard mirror 1 is in a "floating cloud" state, thus achieving cost savings. Specifically, the self-aligning ball bearing 2-1 at the end of the standard mirror provides two degrees of freedom for the large-aperture standard mirror 1: rotation around the X-axis and rotation around the Y-axis. The linear bearing 2-2 at the end of the standard mirror provides one degree of freedom for the large-aperture standard mirror 1: displacement along the Z-axis. The self-aligning ball bearing 2-3 at the fulcrum of the standard mirror provides three degrees of freedom for the large-aperture standard mirror 1: rotation around the Z-axis, displacement along the X-axis, and displacement along the Y-axis.

[0030] In this embodiment, the floating cloud-type unloading mechanism 2 is preferably arranged in a symmetrical manner, that is, the floating cloud-type unloading mechanism 2 is arranged symmetrically on the left and right sides of the longitudinal central axis of the large-diameter standard mirror 1, and the floating cloud-type unloading mechanism 2 is arranged symmetrically on the upper and lower sides of the transverse central axis of the large-diameter standard mirror 1.

[0031] The structure of the back support mechanism 4 is as follows Figure 4 As shown, it includes a ball joint connector 4-1, a flexible rod 4-2, and a flexible rod chamber end self-aligning ball bearing 4-3. Several sleeves are fixed to the back of the mirror body mounting frame 6. The rear end of the sleeve is equipped with the flexible rod chamber end self-aligning ball bearing 4-3. The rear end of the flexible rod 4-2 is installed at the rear end of the sleeve through the flexible rod chamber end self-aligning ball bearing 4-3. The flexible rod 4-2 extends along the axial direction of the large-aperture standard mirror 1, and its front end is connected to the back of the large-aperture standard mirror 1 through the ball joint connector 4-1.

[0032] The back support mechanism 4 is used to restrict the three degrees of freedom of the large-aperture standard mirror 1: Z-axis displacement, rotation around the Y-axis, and rotation around the X-axis, but does not provide any extra force. The flexible rod 4-2 and the ball joint connector 4-1 work together to restrict the three degrees of freedom of the large-aperture standard mirror 1: rotation around the X-axis, rotation around the Y-axis, and displacement around the Z-axis. The self-aligning ball bearing 4-3 at the mirror chamber end of the flexible rod provides the three degrees of freedom of the large-aperture standard mirror 1: rotation around the Z-axis, displacement around the X-axis, and displacement around the Y-axis. Assembly and adjustment are simple and intuitive, operation requires no extra equipment, and manufacturing costs are controllable.

[0033] In this embodiment, a number of back support mechanisms 4 are preferably evenly arranged along the circumference. Specifically, there are 6 back support mechanisms 4 in this embodiment, and the 6 back support mechanisms 4 are arranged at the apex of a regular hexagon.

[0034] The structure of tangential linkage 3 is as follows: Figure 5 As shown, it includes a flexible tangential rod 3-1. The flexible tangential rod 3-1 extends tangentially along the large-aperture standard mirror 1, with one end fixed to the front of the mirror body mounting frame 6 and the other end connected to the side of the large-aperture standard mirror 1.

[0035] The tangential rod mechanism 3 is used to restrict the three degrees of freedom of the large-aperture standard mirror 1: rotation around the Z-axis, displacement along the X-axis, and displacement along the Y-axis, but does not provide any extra force. This structure is visible and convenient for inspection and verification.

[0036] In this embodiment, several flexible tangential rods 3-1 are provided. Specifically, three flexible tangential rods 3-1 are provided, and the three flexible tangential rods 3-1 are evenly arranged tangentially around the circumference of the large-diameter standard mirror 1.

[0037] The large-aperture optical standard testing mirror floating support device of the present invention has a floating unloading mechanism 2 responsible for unloading the standard mirror without providing any degree of freedom restriction. The back support mechanism 4 and the tangential rod mechanism 3 respectively restrict the three degrees of freedom of the standard mirror, but do not provide any extra force, thereby determining the spatial position of the standard mirror. Using the floating support device, the assembly and adjustment status and test results can be repeatedly checked and verified.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A floating support device for a large-aperture optical standard examination mirror, wherein the large-aperture optical standard examination mirror is mounted on a support via a mirror body mounting frame, characterized in that... The floating cloud-type support device includes a floating cloud-type unloading mechanism, a back support mechanism, and a tangential rod mechanism; wherein: The floating cloud-type unloading mechanism is arranged in several parts along the outer circumference of the large-aperture optical standard examination mirror. It includes a force balance lever shaft that is mounted on the mirror body mounting frame via a standard mirror fulcrum self-aligning ball bearing. One end of the force balance lever shaft is equipped with a balance weight located on the back of the mirror body mounting frame, and the other end is equipped with a standard mirror end force point self-aligning ball bearing located on the front of the mirror body mounting frame. The standard mirror end force point self-aligning ball bearing is connected to a longitudinally extending connecting rod via a standard mirror end force point linear bearing. The connecting rod is connected to the side of the large-aperture optical standard examination mirror. The back support mechanism includes a flexible rod. One end of the flexible rod is mounted on the back of the mirror body mounting frame via a self-aligning ball bearing at the mirror chamber end, and the other end is connected to the back of the large-aperture optical standard examination mirror via a ball joint connector. The tangential rod mechanism includes a flexible tangential rod that extends tangentially along the large-aperture optical standard examination mirror. One end of the flexible tangential rod is fixed to the front of the mirror body mounting frame, and the other end is connected to the side of the large-aperture optical standard examination mirror.

2. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, The floating unloading mechanism is used to unload the large-aperture optical standard examination mirror without providing any degree of freedom restriction, leaving the large-aperture optical standard examination mirror in a floating state; the back support mechanism is used to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: Z-axis displacement, rotation around the Y-axis, and rotation around the X-axis, but without providing any extra force; the tangential rod mechanism is used to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the Z-axis, X-axis displacement, and Y-axis displacement, but without providing any extra force.

3. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, The floating cloud-type unloading mechanism is arranged symmetrically on the left and right sides of the longitudinal central axis of the large-aperture optical standard examination mirror, and the floating cloud-type unloading mechanism is arranged symmetrically on the upper and lower sides of the transverse central axis of the large-aperture optical standard examination mirror.

4. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, The back support mechanism consists of several units evenly arranged along the circumference.

5. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, The floating cloud-like support device is used for support, and the installation and adjustment status and test results can be repeatedly checked and verified.

6. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, The self-aligning ball bearing at the end of the standard mirror provides two degrees of freedom for the large-aperture optical standard inspection mirror: rotation around the X-axis and rotation around the Y-axis. The linear bearing at the end of the standard mirror provides one degree of freedom for the large-aperture optical standard inspection mirror: displacement around the Z-axis. The self-aligning ball bearing at the fulcrum of the standard mirror provides three degrees of freedom for the large-aperture optical standard inspection mirror: rotation around the Z-axis, displacement around the X-axis, and displacement around the Y-axis.

7. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, The counterweight is adjusted by the length ratio of the force balancing lever shaft to achieve complete balance and thus unload the mass of the large-aperture optical standard testing mirror.

8. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, The flexible rod and the ball joint work together to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the X-axis, rotation around the Y-axis, and displacement around the Z-axis. The self-aligning ball bearing at the end of the flexible rod is used to provide the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the Z-axis, displacement around the X-axis, and displacement around the Y-axis.

9. The floating support device for a large-aperture optical standard testing mirror according to claim 1, characterized in that, Several flexible tangential rods are arranged tangentially around the circumference of the large-aperture optical standard examination mirror to restrict the three degrees of freedom of the large-aperture optical standard examination mirror: rotation around the Z-axis, displacement around the X-axis, and displacement around the Y-axis.

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