Sealing optical lens fixing structure for precise adjustment and stable supporting

Abstract

The invention relates to a sealed optical lens fixing structure for precise adjustment and stable support, and belongs to the technical field of optical instruments, and the structure comprises an optical lens bracket which is provided with a containing cavity and is used for fixing an optical lens, and the bottom of the optical lens bracket is provided with a first side wall and a second side wall; the mirror bracket fixing seat is provided with a hollow channel, is used for mounting the optical mirror bracket and providing a light beam transmission path, and is provided with a first side surface and a second side surface, when the bottom of the optical mirror bracket is mounted in the channel, the first side surface is propped against the first side wall, and the second side surface is propped against the second side wall; the adjusting assembly is mounted between the optical mirror bracket and the mirror bracket fixing seat and is used for adjusting the mounting position of the optical mirror bracket; sealing structures are arranged between the first side face and the first side wall and between the second side face and the second side wall. Therefore, the integral stress of the optical lens after being installed and fixed can be ensured to be uniform, the integral structural rigidity and the optical lens supporting stability are improved, the sealing performance is ensured, and the optical lens is suitable for vacuum and other application scenes with air tightness requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of optical instruments, and in particular relates to a sealed optical mirror fixing structure for precise adjustment and stable support. Background Art

[0002] In an optical system, in order to accurately control the propagation direction of a light beam, the optical elements must be precisely positioned and adjusted. For some optical systems with higher precision requirements, the optical system must have an optical mirror with adjustable angle to compensate for the deviation of the light path caused by changes in the external environment.

[0003] The existing optical frames for mounting optical mirrors usually directly control the lifting and lowering of various local areas of the optical mirror through adjustment components, thereby changing the angle state of the optical mirror. There is not only the risk of stress concentration causing the optical lens to be prone to position and angle instability, but also the hidden danger of the optical lens being squeezed, deformed or even damaged. In addition, the existing optical mirror fixing structure is also prone to causing the sealing performance of the optical frame to decrease or lose its sealing performance during the angle adjustment process, making it difficult to be used in vacuum and other optical systems with airtightness requirements. Summary of the invention

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A sealed optical mirror fixing structure for precise adjustment and stable support, comprising: an optical frame, which is provided with a accommodating cavity for installing an optical mirror, and has a first side wall and a second side wall at the bottom; a frame fixing seat, which is provided with a hollow channel for installing the optical frame and providing a light beam transmission path, and the frame fixing seat is provided with a first side surface and a second side surface, and when the bottom of the optical frame is installed in the channel, the first side surface abuts against the first side wall, and the second side surface abuts against the second side wall; an adjustment component, which is installed between the optical frame and the frame fixing seat, and is used to adjust the installation position of the optical frame; a sealing structure is provided between the first side surface and the first side wall, and between the second side surface and the second side wall.

[0006] The present invention has the following beneficial effects:

[0007] The sealed optical mirror fixing structure for precise adjustment and stable support of the present invention can ensure the stability of the optical mirror frame structure, not reduce the optical mirror surface shape, and not damage the optical mirror, while achieving precise adjustment of the optical mirror angle and having good sealing performance, and is particularly suitable for vacuum and other application scenarios with airtightness requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1The structure schematic diagram of the sealed optical mirror fixing structure for precise adjustment and stable support of the present invention, wherein 100 is a sealed optical mirror fixing structure for precise adjustment and stable support, 110 is an optical mirror frame, 111 is a receiving cavity, 120 is a mirror frame fixing seat, 130 is an adjustment component, and 160 is a bolt;

[0009] Figure 2 It is a top view of the sealed optical mirror fixing structure for precise adjustment and stable support of the present invention, wherein 100 is a sealed optical mirror fixing structure for precise adjustment and stable support, 110 is an optical mirror frame, 120 is a mirror frame fixing seat, 121 is a channel, 160 is a bolt, 200 is a lifting mechanism, and 300 is a universal support mechanism;

[0010] Figure 3 for Figure 2 A cross-sectional view at AA, wherein 110 - optical frame, 111 - accommodating cavity, 112 - first side wall, 113 - second side wall, 120 - frame fixing seat, 121 - channel, first side surface 122, 123 - second side surface, 140 - sealing structure;

[0011] Figure 4 for Figure 3 An enlarged view of part B, wherein 110 is an optical frame, 112 is a first side wall, 113 is a second side wall, 120 is a frame fixing seat, 122 is a first side surface, 123 is a second side surface, 130 is an adjustment component, 141 is a sealing groove, 142 is a sealing ring, and 160 is a bolt;

[0012] Figure 5 Schematic diagram of the structure of the lifting mechanism of the present invention, wherein 200 is the lifting mechanism, 210 is the housing, 240 is the support block, 250 is the adjustment rod, 260 is the first mounting hole, 270 is the cover plate, and 280 is the limiter;

[0013] Figure 6 It is a top view of the lifting mechanism of the present invention, wherein 210 is a housing, 240 is a support block, 250 is an adjustment rod, 260 is a first mounting hole, 270 is a cover plate, and 280 is a limiter;

[0014] Figure 7 for Figure 6 Cross-sectional view at CC, wherein 210 - housing, 220 - annular block, 222 - first through hole, 230 - wedge block, 240 - support block, 250 - adjustment rod, 260 - first mounting hole, 270 - cover plate;

[0015] Figure 8It is an exploded schematic diagram of the jacking mechanism of the present invention, wherein 200 is a jacking mechanism, 210 is a housing, 211 is a notch, 220 is an annular block, 221 is a first inclined surface, 222 is a first through hole, 223 is a mounting opening, 230 is a wedge block, 231 is a first spherical groove, 232 is a second inclined surface, 240 is a support block, 241 is a support spherical surface, 250 is an adjustment rod, 260 is a first mounting hole, 270 is a cover plate, and 280 is a stopper;

[0016] Fig. 9 Schematic diagram of the installation of the hemispherical gasket of the present invention, wherein 110 is the optical frame, 130 is the adjustment component, 150 is the hemispherical gasket, and 160 is the bolt;

[0017] Fig.10 It is a cross-sectional schematic diagram of the universal support mechanism, wherein 300 is the universal support mechanism, 310 is the receiving block, 320 is the base, and 330 is the second mounting hole. DETAILED DESCRIPTION

[0018] 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 embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figures 1 to 10 As shown, a sealed optical mirror fixing structure 100 for precise adjustment and stable support of the present invention comprises: an optical mirror frame 110, which is provided with a receiving cavity 111 for installing an optical mirror, and a first side wall 112 and a second side wall 113 are provided at the bottom; a mirror frame fixing seat 120, which is provided with a hollow channel 121 for installing the optical mirror frame 110 and providing a light beam transmission path, and the mirror frame fixing seat 120 is provided with a first side surface 122 and a second side surface 123. When the bottom of the optical mirror frame 110 is installed in the channel 121, the first side surface 122 abuts against the first side wall 112, and the second side surface 123 abuts against the second side wall 113. Abutment; the first side surface 122 is connected to the second side surface 123, and the first side wall 112 is connected to the second side wall 113, wherein, when the optical frame 110 is placed horizontally, the first side surface 122 and the first side wall 112 can be horizontally arranged; an adjustment component 130 is installed between the optical frame 110 and the frame fixing seat 120, and is used to adjust the installation position of the optical frame 110, which may include the adjustment of the inclination angle of the optical frame 110 and the vertical height in the channel 121; wherein, a sealing structure 140 is provided between the first side surface 122 and the first side wall 112, and between the second side surface 123 and the second side wall 113.

[0020] The present invention can fix the optical mirror on the optical mirror frame 110 through the combined structure of the optical mirror frame 110 and the mirror frame fixing seat 120. When the working angle of the optical mirror needs to be adjusted, the optical mirror frame 110 is adjusted on the mirror frame fixing seat 120 by operating the adjustment component 130 to complete the change of the tilt angle of the optical mirror frame 110 and the vertical height in the channel 121, thereby realizing the angle and displacement adjustment of the optical mirror, thereby eliminating the need to directly contact and adjust the optical mirror, avoiding the change of the optical mirror surface shape, damage and stress concentration of the optical mirror frame structure. Furthermore, due to the relative movement between the optical mirror frame 110 and the mirror frame fixing seat 120, the optical mirror frame 110 can be adjusted by adjusting the optical mirror frame 110 on the mirror frame fixing seat 120. The step design of the frame 110 and the frame fixing seat 120 forms a double-sided contact, and then the sealing structure 140 is respectively arranged on the two contact surfaces to form a unique double-sided sealing form, which ensures that when the optical frame 110 is adjusted to various tilt angles, there is at least one contact surface that can always maintain sealing. Compared with the sealing form between a single plane, it avoids the inclination of the optical frame 110 causing a loose seal, effectively improves the sealing of the channel 121, and is particularly conducive to maintaining the vacuum in the channel 121 and other environments with airtightness requirements, thereby ensuring the stability of light beam transmission in some application scenarios, improving the performance of the optical frame 100 and the practicality in more scenarios.

[0021] In some optional embodiments, the second side surface 123 and the second side wall 113 are both conical surfaces, and the second side surface 123 and the second side wall 113 are both inclined toward the central axis of the channel 121. The arrangement that the second side surface 123 and the second side wall 113 are both inclined toward the central axis of the channel 121 not only facilitates the placement of the optical frame 110 in the channel 121 of the frame fixing seat 120 for installation, but also facilitates the use of the deadweight of the optical frame 110 to squeeze the sealing structure 140 between the second side surface 123 and the second side wall 113, such as squeezing the sealing ring 142, during use, so as to improve the sealing performance of the contact surface.

[0022] In some optional embodiments, the sealing structure 140 includes a sealing groove 141 and a sealing ring 142 . The sealing groove 141 is formed on both the first side surface 122 and the second side surface 123 . The sealing ring 142 is installed in the sealing groove 141 .

[0023] The sealing structure 140 is in the form of a sealing groove 141 and a sealing ring 142, which has a simple structure and is easy to process. The frame fixing seat 120 is selected to be grooved and the sealing ring 142 is installed to facilitate assembly. In addition, the optical frame 110 can also be grooved and the sealing ring 142 can be installed.

[0024] In some optional embodiments, a plurality of adjustment assemblies 130 are provided at circumferential intervals along the channel 121 , including at least two lifting mechanisms 200 and at least one universal support mechanism 300 , wherein the lifting mechanisms 200 are used to adjust the installation height of the optical frame 110 , and the universal support mechanism 300 is used to support the optical frame 110 and adapt to the tilt angle of the optical frame 110 .

[0025] By setting at least two lifting mechanisms 200, the optical frame 110 can be better lifted and lowered. By controlling the lifting of different lifting mechanisms 200, the change of the inclination angle of the optical frame 110 can be achieved. The universal support mechanism 300 adapts to the inclination angle of the optical frame 110 and can change with the change of the inclination angle of the optical frame 110. It is a driven change made based on the optical frame 110. Therefore, by setting the universal support mechanism 300, the optical frame 110 with a changed inclination angle can be well supported, thereby effectively reducing the wear of the frame.

[0026] In some optional embodiments, between the optical frame 110 and the frame fixing seat 120 , two lifting mechanisms 200 and one universal support mechanism 300 are distributed circumferentially along the channel 121 .

[0027] Compared with conventional adjustment components that are all used to adjust the installation height, the adjustment component 130 of the present invention only cooperates with two lifting mechanisms 200 and a universal support mechanism 300. While achieving the control of the tilt angle of the optical frame 110, it can effectively reduce costs and operating objects, has a simple structure, and is easy to operate.

[0028] In some optional embodiments, the lifting mechanism 200 includes a shell 210, in which a slot 211 is provided; an annular block 220, which is installed at the bottom of the slot 211, and has a first inclined surface 221 on the top and an installation opening 223 on the side; a wedge block 230, which is installed in the slot 211 and is located above the annular block 220, and has a first spherical groove 231 on the top and a second inclined surface 232 adapted to the first inclined surface 221 on the bottom; a support block 240, which has a supporting spherical surface 241 at the bottom and is installed in the spherical groove 231, and the support block 240 is used to place the optical frame 110; an adjusting rod 250, which is fixed to the installation opening 223 and is used to push the annular block 220 to move in the shell 210. Due to the setting of the first inclined surface 221 and the second inclined surface 232, and the position constraint of the wedge block 230 by the shell 210, the wedge block 230 can achieve stable lifting and lowering movement.

[0029] Through the combination of the annular block 220 and the wedge block 230 and the stroke constraint of the shell 210, the adjusting rod 250 can be used to perform stable lifting and lowering adjustments. The lifting mechanism 200 has a simple structure and is easy to process. Through the spherical contact between the support block 240 and the wedge block 230, a stable support can be formed for the optical frame 110, which can adapt to the inclination of the optical frame 110 and avoid the reduction of the support force surface causing wear of the optical frame 110 and a decrease in the stability of the support.

[0030] In some optional embodiments, the annular block 220 has a first through hole 222, and the shell 210, the wedge block 230, and the support block 240 are all provided with a first mounting hole 260, and the first mounting hole 260 is used to install a connecting piece, and the cross-sectional area of ​​the first through hole 222 is larger than the cross-sectional area of ​​the first mounting hole 260.

[0031] The design of the first mounting hole 260 facilitates the selection of the bolt 160 for connection and installation. Not only are the mounting parts easy to obtain and the connection is stable, but the jacking mechanism 200 is also convenient for repeated disassembly and assembly, or maintenance and adjustment. The size design of the first through hole 222 and the first mounting hole 260 ensures that the installation of the bolt 160 will not excessively restrict the translation of the annular block 220.

[0032] In some optional embodiments, the lifting mechanism 200 further includes a limiting member 280 , the wedge block 230 is provided with a waist-shaped hole, and the limiting member 280 penetrates the shell 210 and extends into the waist-shaped hole to constrain the displacement range of the wedge block 230 .

[0033] In some optional embodiments, the optical frame 110 is provided with a mounting hole for connecting the adjustment component 130, and the mounting hole is provided with a second spherical groove. The optical frame 110 is provided with a hemispherical gasket 150, and the bottom of the hemispherical gasket 150 is spherical to adapt to the second spherical groove, so as to reduce the wear of the optical frame 110 at the mounting hole and improve the connection stability.

[0034] In some optional embodiments, the universal support mechanism 300 includes a receiving block 310 and a base 320 , the base 320 is provided with a third spherical groove, and the bottom of the receiving block 310 is spherical and installed in the third spherical groove.

[0035] Based on the convenience of production and processing and the needs of specific working conditions, certain selections and combinations are made among various optional implementation methods, such as Figure 1 , Figure 2 , Figure 3As shown, the optical frame 100 of this embodiment includes a ring-shaped optical frame 110 and a frame fixing seat 120. The outer edge of the bottom of the optical frame 110 is provided with a concave angular structure to form a horizontal first side wall 112 and a vertically inclined second side wall 113, and a flange is provided on the inner side of the bottom of the optical frame 110 to form a accommodating cavity 111 together with the inner wall of the optical frame 110. The optical mirror can be directly placed in the accommodating cavity 111 or clamped in the accommodating cavity 111. The method of fixing the optical mirror is not limited here.

[0036] The top of the frame fixing seat 120 is correspondingly provided with a corner structure adapted to the optical frame 110 to form a horizontal first side surface 122 and a vertically inclined second side surface 123. The first side surface 122 and the second side surface 123 are both provided with a sealing groove 141, and a sealing ring 142 is installed in the sealing groove 141. The second side surface 123 is also the inner wall of the channel 121. When the bottom of the optical frame 110 is placed in the channel 121 of the frame fixing seat 120, the first side surface 122 and the first side wall 112 can abut and press the corresponding sealing ring 142, and the second side surface 123 and the second side wall 113 can also abut and press the corresponding sealing ring 142, thereby forming a good double-sided sealing structure 140, which is particularly beneficial. Used in vacuum and other scenarios with airtightness requirements, when adjusting the optical frame 110 to partially rise, even if the sealing structure 140 between the first side surface 122 and the first side wall 112 may temporarily fail, the vacuum and other airtightness requirements in the channel 121 can be effectively maintained through the sealing structure 140 between the second side wall 113 and the second side surface 123. Similarly, when adjusting the optical frame 110 to partially tilt downward, even if the sealing structure 140 between the second side surface 123 and the second side wall 113 may temporarily fail, the vacuum environment or other environments with airtightness requirements in the channel 121 can be effectively maintained through the sealing structure 140 between the first side wall 112 and the first side surface 122.

[0037] A plurality of adjustment components 130 are connected circumferentially between the optical frame 110 and the frame fixing seat 120. Four adjustment components 130 may be provided, so that the optical frame 110 can be raised and lowered and adjusted in four directions. Furthermore, in order to ensure that the supporting surfaces of the plurality of adjustment components 130 are in the same plane and to minimize the use of the adjustment components 130, only three adjustment components 130 may be provided, so as to achieve multi-angle adjustment in three directions of the optical frame 110. Under the spherical support of the adjustment components 130, it is ensured that the supporting surface of the optical frame 110 is always in the same plane; further, the three adjustment components 130 are evenly spaced 120 degrees apart, and the three adjustment components 130 are composed of two lifting mechanisms 200 and a universal support mechanism 300, which can achieve angle adjustment while minimizing the use of the lifting mechanism 200, which not only simplifies the adjustment operation but also saves costs.

[0038] like Figure 4-Figure 8 As shown, the lifting mechanism 200 specifically includes a rectangular shell 210, and the shell 210 is provided with a vertical rectangular slot 211, and an annular block 220, a wedge block 230 and a support block 240 are placed in sequence in the slot 211, wherein the bottom of the annular block 220 is a plane, and the top is an inclined surface, and a mounting opening 223 is provided on the side of the annular block 220, and one end of the adjusting rod 250 passes through the shell 210 and is fixed in the mounting opening 223, and the adjusting rod 250 and the shell 210 can be slidably connected or threadedly connected, so that the other end of the adjusting rod 250 can be controlled to push the annular block 220, so that the annular block 220 can reciprocate up and down in the slot 211.

[0039] A wedge block 230 is placed on the top of the annular block 220. The bottom of the wedge block 230 is an inclined surface that matches the inclined surface on the top of the annular block 220. The two inclined surfaces may preferably have the same inclination angle, so that the wedge block 230 can be pushed by the translation of the annular block 220 and constrained by the notch 211 to perform a smooth vertical displacement. A first spherical groove 231 is provided on the top of the wedge block 230, and the bottom of the support block 240 is a corresponding supporting spherical surface 241. The support block 240 is also pushed by the vertical displacement of the wedge block 230. The support block 240 will move vertically, and the top of the support block 240 abuts against the extended surface of the bottom of the optical frame 110, thereby correspondingly driving the corresponding area of ​​the optical frame 110 to produce vertical displacement, and when the optical frame 110 tilts, the support block 240 will also tilt with the optical frame 110 in the first spherical groove 231, ensuring that the supporting area of ​​the optical frame 110 by the support block 240 will not be reduced due to the adjustment angle, thereby reducing the wear of the optical frame 110 and improving the supporting stability of the optical frame 110 by the lifting mechanism 200.

[0040] The notch 211 of the housing 210 is designed to constrain the annular block 220 and the wedge block 230 to move in a desired direction. A cover plate 270 may be provided on the top of the wedge block 230. The cover plate 270 and the spherical groove may constrain the support block 240, so that the support block 240 may be tilted arbitrarily within a certain range without being separated from the spherical groove. In addition, if the cover plate 270 is not provided, the abutment with the optical frame 110 may be used for constraint. The provision of the cover plate 270 may reduce the difficulty of assembling the lifting mechanism 200.

[0041] The wedge block 230 may also be provided with a waist-shaped hole on the side, and a corresponding limit member 280 may be provided that passes through the shell 210. The limit member 280 may be selected from a screw or a threaded rod. The limit member 280 is threadedly connected to the shell 210 and can extend into the waist-shaped hole to restrict the vertical displacement range of the wedge block 230. At the same time, it can also prevent the wedge block 230 from falling out of the slot 211, so that the entire lifting mechanism 200 has a stable structure after installation, is not easy to disperse, and is easy to transport and transfer.

[0042] Furthermore, the annular block 220 also has a hollow first through hole 222, and the housing 210, the wedge block 230, and the support block 240 are all provided with a first mounting hole 260, so that the lifting mechanism 200 can be installed between the optical frame 110 and the frame fixing seat 120 using the bolt 160, that is, the optical frame 110 and the frame fixing seat 120 are provided with axially corresponding mounting holes, and the lifting mechanism 200 can be fixed in the mounting hole after the bolt 160 is passed through the entire lifting mechanism 200. Compared with the mounting holes at the bottom of the housing 210 and the support block 240, the lifting mechanism 200 can be fixed in the mounting hole. The top is installed by bonding or clamping in other ways, and the first mounting hole 260 is designed to be installed with the bolt 160. Not only is the mounting part easy to obtain and the connection is stable, but it is also convenient for the jacking mechanism 200 to be repeatedly disassembled and assembled, or to be repaired and adjusted. In addition, the vertical projection area of ​​the first through hole 222 is larger than the vertical projection area of ​​the first mounting hole 260, so that the installation of the bolt 160 will not excessively restrict the translation of the annular block 220, and the gap reserved between the first through hole 222 and the bolt 160 can meet the small range of angle adjustment required for the optical mirror.

[0043] Further, such as Fig. 9As shown, a second spherical groove is further provided at the mounting hole of the optical frame 110, and a hemispherical gasket 150 is provided at the head of the bolt 160. The hemispherical gasket 150 with a spherical bottom is cushioned in the second spherical groove, so that the bolt 160 can form a spherical contact with the optical frame 110. Furthermore, the aperture of the mounting hole of the optical frame 110 and the frame fixing seat 120 and the aperture of the first mounting hole 260 are slightly larger than the diameter of the bolt 160. The tail of the bolt 160 is threadedly connected to the frame fixing seat 120. When the lifting mechanism 200 is adjusted to the optical frame 110, the mounting hole 120 of the optical frame 110 and the frame fixing seat 120 is slightly larger than the diameter of the bolt 160. When the frame 110 is partially lifted, the bolt 160 is screwed to create a sufficient gap between its head and the optical frame 110. When the optical frame 110 is adjusted to a desired tilt angle, the bolt 160 is retightened. Due to the spherical contact design of the hemispherical gasket 150, the pre-tightening force of the bolt 160 always acts on the optical frame 110 through a considerable contact area before and after adjustment, effectively reducing the wear of the optical frame 110, and simultaneously improving the stability of the tightening of the bolt 160, reducing the hidden danger of a decrease in tightening force due to a reduction in the force-bearing area.

[0044] like Fig.10 As shown, the universal support mechanism 300 can have a simpler structure than the lifting mechanism 200, for example, it can be composed of only a base 320 and a receiving block 310, the top of the base 320 is provided with a third spherical groove, and the bottom of the corresponding receiving block 310 is an adapted spherical surface, and the design of spherical contact can reduce the wear of the optical frame 110 due to tilting and improve the support stability. The base 320 and the receiving block 310 are both provided with a second mounting hole 330, so that the bolt 160 can penetrate the universal support mechanism 300 to connect between the optical frame 110 and the frame fixing seat 120. The universal support mechanism 300 can form a good support performance for the tilt of the optical frame 110 without manual operation and adjustment. In addition, based on the uniqueness of the parts or actual needs, it is also possible to avoid additional processing of the universal support mechanism 300, and directly replace the universal support mechanism 300 with the mass-produced lifting mechanism 200. Since the wedge block 230 and the support block 240 of the lifting mechanism 200 also have a spherical support form, they do not need to be adjusted and are only used to form a universal support for the optical frame 110. The three adjustment components 130 can all be set as the lifting mechanism 200, and finally the optical frame 110 is supported by the three lifting mechanisms 200. Of course, after selecting the lifting mechanism 200 to replace the universal support mechanism 300, it can also cooperate with other lifting mechanisms 200 to perform lifting and lowering adjustments, and can also play a role in expanding the adjustment stroke.

[0045] The optical frame 100 provided in this embodiment, through the combined use of the optical frame 110 and the frame fixing seat 120, and the double-sided sealing structure 140 formed based on double-sided contact, can indirectly achieve the angle adjustment of the optical lens by adjusting the tilt angle of the optical frame 110, and can effectively maintain the sealing environment in the frame fixing seat 120 during the adjustment, so as to perform non-destructive angle adjustment of the optical lens, and is also convenient for use in vacuum and other scenarios with airtightness requirements. Through the combination of two lifting mechanisms 200 and a universal support mechanism 300, the adjustment steps are simplified, and the equipment cost is controlled to be low. Moreover, based on the spherical contact design, the tilt of the optical frame 110 can maintain good support performance. The design of the lifting mechanism 200 is not only easy to assemble and has a stable structure, but also easy to adjust and has a stable reciprocating motion stroke.

[0046] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

Claims

1. A sealed optical mirror fixing structure for precise adjustment and stable support, characterized in that: include: An optical mirror frame (110) is provided with a receiving cavity (111) for mounting an optical mirror, and a first side wall (112) and a second side wall (113) are provided at the bottom; A mirror frame fixing seat (120) provided with a hollow channel (121) for mounting the optical mirror frame (110) and providing a light beam transmission path; the mirror frame fixing seat (120) provided with a first side surface (122) and a second side surface (123); when the bottom of the optical mirror frame (110) is mounted in the channel (121), the first side surface (122) abuts against the first side wall (112), and the second side surface (123) abuts against the second side wall (113); An adjustment component (130) is installed between the optical frame (110) and the frame fixing seat (120) and is used to adjust the installation position of the optical frame (110); a sealing structure (140) is provided between the first side surface (122) and the first side wall (112), and between the second side surface (123) and the second side wall (113).

2. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 1, characterized in that: The second side surface (123) and the second side wall (113) are both conical surfaces, and the second side surface (123) and the second side wall (113) are both inclined towards the central axis of the channel (121).

3. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 1, characterized in that: The sealing structure (140) comprises a sealing groove (141) and a sealing ring (142); the first side surface (122) and the second side surface (123) are both provided with the sealing groove (141); and the sealing ring (142) is installed in the sealing groove (141).

4. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 1, characterized in that: A plurality of the adjustment assemblies (130) are arranged at intervals along the circumferential direction of the channel (121).

5. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 1, characterized in that: The adjustment assembly (130) comprises at least two lifting mechanisms (200) and at least one universal support mechanism (300), wherein the lifting mechanisms (200) are used to adjust the installation height and tilt angle of the optical frame (110), and the universal support mechanism (300) is used to support the optical frame (110) and adapt to the tilt angle of the optical frame (110).

6. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 1, characterized in that: A plurality of the adjustment components (130) are arranged at intervals along the circumference of the channel (121), including three lifting mechanisms (200), wherein the lifting mechanisms (200) are used to support the optical frame (110) and to adjust the installation height and tilt angle of the optical frame (110).

7. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 5 or 6, characterized in that: The lifting mechanism (200) comprises: The housing (210) is provided with a notch (211); An annular block (220) is installed at the bottom of the notch (211), with a first inclined surface (221) provided on the top and a mounting opening (223) provided on the side; A wedge block (230) is installed in the notch (211) and is located above the annular block (220), with a first spherical groove (231) provided on the top and a second inclined surface (232) adapted to the first inclined surface (221) provided on the bottom; A support block (240), having a support spherical surface (241) at the bottom and installed in the spherical surface groove (231), the support block (240) being used to place the optical frame (110); An adjusting rod (250) is fixed to the mounting opening (223) and is used to push the annular block (220) to move within the housing (210).

8. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 7, characterized in that: A cover plate (270) is arranged on the top of the wedge-shaped block (230), and the cover plate (270) and the spherical groove (231) jointly constrain the support block (240).

9. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 7, characterized in that: The annular block (220) has a hollow first through hole (222); the housing (210), the wedge block (230) and the support block (240) are all provided with a first mounting hole (260); the first mounting hole (260) is used to mount a connecting piece; the cross-sectional area of ​​the first through hole (222) is larger than the cross-sectional area of ​​the first mounting hole (260).

10. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 9, characterized in that: The connecting member is a bolt (160), and the bolt (160) runs through the entire jacking mechanism (200).

11. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 10, characterized in that: The optical mirror frame (110) and the mirror frame fixing seat (120) are provided with axially corresponding mounting holes, and the bolts (160) penetrate the entire lifting mechanism (200) and the mounting holes to fix the lifting mechanism (200) in the mounting holes.

12. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 7, characterized in that: The lifting mechanism (200) further comprises a limiting member (280), the wedge block (230) is provided with a waist-shaped hole, and the limiting member (280) penetrates the housing (210) and extends into the waist-shaped hole to constrain the displacement range of the wedge block (230).

13. The sealed optical mirror fixing structure for precise adjustment and stable support according to any one of claims 1 to 12, characterized in that: The optical frame (110) is provided with a mounting hole connected to the adjustment assembly (130), the mounting hole being provided with a second spherical groove, and the optical frame (110) is provided with a hemispherical gasket (150), the bottom of the hemispherical gasket (150) being a spherical surface so as to fit the second spherical groove.

14. The sealed optical mirror fixing structure for precise adjustment and stable support according to claim 5, characterized in that: The universal support mechanism (300) comprises a receiving block (310) and a base (320); the base (320) is provided with a third spherical groove; the bottom of the receiving block (310) is a spherical surface and is installed in the third spherical groove.

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