Optical lens two-dimensional angle adjustment device

Abstract

The application provides a two-dimensional angle adjusting device for optical lenses, wherein a lens assembly is fixedly connected with a pitch rotation assembly; the optical axis of the lens in the lens assembly is located in the plane of the rotation direction of the pitch rotation assembly; the pitch rotation assembly is rotatably connected with a circumferential rotation assembly, and the circumferential rotation assembly is abutted by a first limiting assembly within a first rotatable angle range to keep a target angle within the first angle range; the circumferential rotation assembly is rotatably connected with a base; the base is abutted by a second limiting assembly within a second rotatable angle range of the circumferential rotation assembly to keep a target angle within the second angle range; and the plane of the rotation direction of the pitch rotation assembly is perpendicular to the plane of the rotation direction of the circumferential rotation assembly. The application effectively eliminates the problems of shaking and insufficient spring holding force caused by the ball gap in the traditional structure, and significantly improves the angle stability and anti-interference ability of the lens.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of optical lens adjustment, and particularly relates to an optical lens two-dimensional angle adjustment device. BACKGROUND

[0002] In optical precision machinery, various optical lenses are needed to achieve optical path design, and in order to ensure optical precision, the angle of the optical lens has strict requirements. The optical lens is usually fixedly installed on an adjustment mechanism for use. According to actual needs, the adjustment mechanism is used to adjust the angle of the optical lens to ensure optical precision.

[0003] Patent application No. 2020116327080 discloses a multi-dimensional adjustment rack for optical lenses and an optical assembly, which comprises a pitch adjustment mechanism and an XY adjustment mechanism connected with the pitch adjustment mechanism. The pitch adjustment mechanism comprises a fixed frame, which is provided with a first spring upper part mounting hole and a screw mounting hole; a first spring upper part fixing member is arranged in the first spring upper part mounting hole; a first spring is connected with the first spring upper part fixing member at one end and connected with the XY adjustment mechanism at the other end; a fastener is connected with the XY adjustment mechanism after passing through the fixed frame; and a pitch adjustment screw is in abutment with the XY adjustment mechanism after passing through the fixed frame.

[0004] However, in the above patent application, the position of the lens is maintained by a spring, and the lens is rotated by a ball as a fulcrum. There is a gap in the fixation of the ball, and the amount of shaking is large. When an external force or motion is received, the holding force of the spring is not enough, which can cause the angle of the optical lens to change. SUMMARY

[0005] The present application provides an optical lens two-dimensional angle adjustment device, which can be used to solve the problem of the gap in the fixation of the ball, the large amount of shaking, and the insufficient holding force of the spring when an external force or motion is received, which can cause the angle of the optical lens to change.

[0006] The present application provides an optical lens two-dimensional angle adjustment device, which comprises a lens assembly, a pitch rotation assembly, a first limiting assembly, a circumferential rotation assembly, a second limiting assembly, and a base.

[0007] The lens assembly is fixedly connected with the pitch rotation assembly. The optical axis of the lens in the lens assembly is located in the plane in which the pitch rotation assembly rotates.

[0008] The pitch rotation assembly is rotatably connected with the circumferential rotation assembly, and abuts against the circumferential rotation assembly within a first angle range through the first limiting assembly to maintain a target angle within the first angle range.

[0009] The circumferential rotating assembly is rotatably connected to the base; the base abuts against the circumferential rotating assembly through the second limiting assembly in a second angle range to keep a target angle in the second angle range;

[0010] The plane in which the pitching rotating assembly rotates is perpendicular to the plane in which the circumferential rotating assembly rotates.

[0011] Optionally, the lens assembly comprises a mirror frame and a lens;

[0012] The mirror frame is provided with a through hole penetrating through the mirror frame; the lens is arranged in the through hole of the mirror frame; and the mirror frame is fixedly connected to the pitching rotating assembly.

[0013] Optionally, the pitching rotating assembly comprises a first support base;

[0014] The two sides of the first support base are rotatably connected to the circumferential rotating assembly through connecting members;

[0015] When the bottom of the first support base is in a horizontal state, the bottom is not in contact with the top of the circumferential rotating assembly.

[0016] Optionally, the connecting members comprise two first connecting ends and two second connecting ends symmetrically arranged on the top of the first support base, and two third connecting ends and two fourth connecting ends symmetrically arranged on the top of the circumferential rotating assembly;

[0017] The first connecting ends and the second connecting ends are located between the third connecting ends and the fourth connecting ends;

[0018] The first connecting ends are fixedly connected with pins penetrating through the first connecting ends; and the second connecting ends are fixedly connected with pins penetrating through the second connecting ends;

[0019] The two pins are fixedly connected with first connecting shafts; and the two first connecting shafts pass through and are fixedly connected with inner rings of first bearings, respectively;

[0020] Outer rings of the two first bearings are embedded on the third connecting ends and the fourth connecting ends, respectively.

[0021] Optionally, the two first connecting shafts are provided with first limiting rings, respectively; and the two first limiting rings abut against the inner rings of the two first bearings, respectively;

[0022] The two first connecting shafts are fixedly connected with first bearing inner pressure rings, respectively; and the two first bearing inner pressure rings abut against the inner rings of the two first bearings, respectively;

[0023] The third or fourth connecting end is provided with a first bearing outer pressure ring; the first bearing outer pressure ring abuts against the side of the first bearing outer ring away from the pitch rotation assembly.

[0024] Optionally, the first limiting component includes two symmetrically arranged first bolts located close to both sides of the first support; the axis of symmetry of the two first bolts is perpendicular to the plane containing the rotation direction of the pitch rotation component.

[0025] The two first bolts pass through and are threaded onto the first support base, with their ends facing the top of the circumferential rotating assembly.

[0026] Optionally, the first limiting assembly further includes two second bolts threadedly connected to the first support; the ends of the two second bolts respectively abut against the threaded portions of the two first bolts.

[0027] Optionally, the circumferential rotation assembly includes a second support base;

[0028] The top of the second support is fixedly connected to the third and fourth connecting ends;

[0029] The second support base has a through hole in the middle; a second bearing is installed in the through hole of the second support base.

[0030] The inner ring of the second bearing is fixedly connected to a second connecting shaft;

[0031] The second connecting shaft is fixedly connected to the base;

[0032] The axis of the second bearing is collinear with the axis of the second connecting shaft and perpendicular to the upper surface of the base.

[0033] Optionally, a second limiting ring and a second bearing inner pressure ring are provided on the second connecting shaft;

[0034] The second limiting ring abuts against the side of the second bearing inner ring closest to the base; the second bearing inner pressure ring abuts against the side of the second bearing inner ring furthest from the base;

[0035] The second bearing outer pressure ring is provided in the through hole of the second support base; the second bearing outer pressure ring abuts against the side of the second bearing outer ring away from the base.

[0036] Optionally, the second limiting component includes two symmetrically arranged connecting seats;

[0037] The two connecting seats are located on the same side of the top of the base; each connecting seat is threaded with a third bolt that passes through the connecting seat;

[0038] The ends of the two third bolts respectively abut against the two sides of the second support.

[0039] Optionally, each of the connecting seats is threaded with a fourth bolt;

[0040] The ends of the two fourth bolts respectively abut against the threaded portions of the two third bolts.

[0041] The present invention provides a two-dimensional angle adjustment device for optical lenses. Through the vertical plane design of the pitch rotation component and the circumferential rotation component, combined with the rigid abutment and fixation of the target angle by the limiting component, it effectively eliminates the slight wobbling caused by the gap of the traditional ball bearings and avoids the problem of insufficient holding force of the spring mechanism. It has the advantages of solving the problem of slight wobbling after lens adjustment, improving the stability of lens angle and enhancing the resistance to external vibration. Attached Figure Description

[0042] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the structure of a two-dimensional angle adjustment device for an optical lens provided in an embodiment of the present invention;

[0044] Figure 2 This is an exploded view of the structure of a two-dimensional angle adjustment device for an optical lens provided in an embodiment of the present invention;

[0045] Figure 3 This is a schematic diagram of the structure of the first connecting shaft provided in an embodiment of the present invention;

[0046] Figure 4 This is a schematic diagram illustrating the connection relationship between the base and the second connecting shaft provided in an embodiment of the present invention.

[0047] The components include: 1. Lens assembly; 11. Frame; 12. Lens; 2. Pitch rotation assembly; 21. First support base; 22. Connector; 221. First connecting end; 222. Second connecting end; 223. Third connecting end; 224. Fourth connecting end; 225. Pin; 226. First connecting shaft; 2261. First limiting ring; 227. First bearing; 2271. Inner pressure ring of the first bearing; 2272. Outer pressure ring of the first bearing; 3. First limiting assembly; 31. First bolt; 32. Second bolt; 4. Circumferential rotation assembly; 41. Second support base; 42. Second bearing; 421. Inner pressure ring of the second bearing; 422. Outer pressure ring of the second bearing; 43. Second connecting shaft; 431. Second limiting ring; 5. Second limiting assembly; 51. Connecting base; 52. Third bolt; 53. Fourth bolt; 6. Base. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In one embodiment, such as Figure 1 As shown, this embodiment provides a two-dimensional angle adjustment device for an optical lens, including a lens assembly 1, a pitch rotation assembly 2, a first limiting assembly 3, a circumferential rotation assembly 4, a second limiting assembly 5, and a base 6.

[0050] Lens assembly 1 is fixedly connected to pitch rotation assembly 2; the optical axis of the lens in lens assembly 1 is located in the plane in which the pitch rotation assembly 2 rotates; the pitch rotation assembly 2 is rotatably connected to circumferential rotation assembly 4, and within the first rotatable angle range, it abuts against circumferential rotation assembly 4 through first limiting assembly 3 to maintain the target angle within the first angle range.

[0051] The circumferential rotation component 4 is rotatably connected to the base 6; the base 6 abuts against the circumferential rotation component 4 through the second limiting component 5 within the second angular range of the circumferential rotation component 4 to maintain the target angle within the second angular range; the plane in which the pitch rotation component 2 rotates is perpendicular to the plane in which the circumferential rotation component 4 rotates.

[0052] The lens assembly 1 can be understood as the basic component used to support the optical lens and enable its angle adjustment, which can be achieved in various ways. For example, the lens assembly 1 can adopt an integrated molding structure, directly embedding the lens into the fixed frame, or fix the lens to the support frame through a snap-fit ​​structure, mainly to achieve stable installation of the lens and subsequent angle adjustment function.

[0053] The innovation of this embodiment lies in the rigid fixing method achieved through direct contact of the mechanical limiting components, replacing the traditional spring holding mechanism. This effectively eliminates the gap between rotating parts, reduces wobbling caused by external forces, and ensures the accuracy and long-term stability of angle adjustment. Simultaneously, the independent pitch and circumferential angle adjustment is achieved through two orthogonally arranged rotating components, avoiding the gap problem present in traditional ball bearing pivots and providing reliable angle adjustment capabilities for optical precision mechanics.

[0054] The working principle of this embodiment is as follows: The two-dimensional angle adjustment device for optical lenses achieves precise angle adjustment and stable holding through the coordinated operation of multiple components. Specifically, lens assembly 1 is fixedly connected to pitch rotation assembly 2, and the optical axis of the lens lies within the plane of the rotation direction of pitch rotation assembly 2. This ensures that the change in the optical axis of the lens during pitch adjustment is consistent with the rotation direction, facilitating precise pitch angle control. Pitch rotation assembly 2 is rotatably connected to circumferential rotation assembly 4, and within a first angle range, it abuts against circumferential rotation assembly 4 via a first limiting assembly 3 to maintain the target angle.

[0055] Specifically, the first limiting component 3 provides rigid abutment force to directly fix the pitch direction, eliminating elastic deformation and gaps, and preventing angle drift caused by external vibration. Furthermore, the circumferential rotation component 4 is rotatably connected to the base 6, and within the second angle range, it abuts against the circumferential rotation component 4 via the second limiting component 5 to maintain the target angle. Similarly, the second limiting component 5 ensures stable fixation of the circumferential angle through mechanical abutment, preventing loosening at the connection point of the base 6 from affecting accuracy.

[0056] Furthermore, the plane containing the rotation direction of the pitch rotation component 2 is perpendicular to the plane containing the rotation direction of the circumferential rotation component 4, thus achieving an orthogonal arrangement of the two rotational degrees of freedom. This allows for independent adjustment of the pitch and circumferential angles without interference. These features work together, through a rigid limiting mechanism of mechanical contact, to solve the problems of large gaps, large wobble, and angle instability caused by springs and ball bearings in existing technologies, providing highly reliable angle adjustment capabilities for optical precision mechanics.

[0057] For example, such as Figure 2 As shown, the lens assembly 1 includes a frame 11 and a lens 12; the frame 11 has a through hole; the lens 12 is disposed in the through hole of the frame 11; the frame 11 is fixedly connected to the pitch rotation assembly 2.

[0058] The frame 11 is a rigid frame structure that supports and fixes the lens 12. It can be made of metal or high-strength plastic to ensure sufficient rigidity and stability. The through-hole in the frame 11 is a key structure for providing a precise mounting position for the lens 12. Its purpose is to constrain the lens 12 from all directions through the inner wall of the through-hole, preventing radial displacement during adjustment. The lens 12 is the light-transmitting element that actually participates in the optical system. It is precision-machined to ensure a tight fit with the through-hole in the frame 11.

[0059] In this embodiment, the frame structure of the lens assembly 1 effectively improves the stability of the lens during angle adjustment. The frame 11, as an independent rigid carrier, evenly distributes and transmits the adjustment force to the entire lens assembly, preventing the force from acting directly on the lens 12 body. The inner wall contour of the through-hole in the frame 11 fits tightly with the outer edge of the lens 12, not only restricting the lens 12's degrees of freedom but also ensuring the stable orientation of the optical axis during adjustment.

[0060] The fixed connection between the frame 11 and the pitch rotation assembly 2 significantly reduces the direct transmission of vibration from the rotation mechanism to the lens 12 by adding an intermediate link in the force transmission path. This improves the smoothness of the adjustment operation and the reliability of angle reproduction, making it suitable for optical systems that require high-precision angle adjustment. It can effectively solve the problem of lens position shift caused by external vibration or adjustment force.

[0061] For example, such as Figure 2 As shown, the pitch rotation assembly 2 includes a first support base 21; the two sides of the first support base 21 are rotatably connected to the circumferential rotation assembly 4 via connectors 22; when the bottom of the first support base 21 is in a horizontal state, it does not contact the top of the circumferential rotation assembly 4.

[0062] The first support base 21, serving as a structural component for supporting and fixing the lens assembly 1, can be made of metal or high-strength composite materials to ensure sufficient rigidity and stability. The connector 22 can be a combination structure including mechanical connecting elements such as pins and bearings, its purpose being to achieve a rotatable connection between the first support base 21 and the circumferential rotating assembly 4, while ensuring uniform force distribution during rotation. The bottom of the first support base 21 is designed to remain in non-contact with the top of the circumferential rotating assembly 4 in a horizontal state, ensuring that the first support base 21 can pitch and rotate on top of the circumferential rotating assembly 4.

[0063] The first support 21 provides a stable load-bearing foundation for the lens assembly 1, avoiding deformation problems caused by weak structure, thereby ensuring the stability of the optical axis position. The connector 22 adopts a symmetrically distributed mechanical connection method, which enables the rotational force between the first support 21 and the circumferential rotation assembly 4 to be evenly distributed, effectively suppressing the swaying phenomenon caused by unilateral load, and ensuring the axial consistency of pitch rotation.

[0064] Furthermore, the design of the bottom of the first support 21 not contacting the top of the circumferential rotation component 4 in a horizontal state completely eliminates the static friction resistance that may be generated in traditional contact structures, allowing stepless fine-tuning without overcoming additional friction. This design significantly improves the sensitivity and repeatability of angle positioning, making it particularly suitable for optical systems with high requirements for minute angle changes. Simultaneously, this design, in conjunction with the lens assembly 1 and the circumferential rotation component 4, further enhances the stability and reliability of the overall adjustment device, resolving the issues of adjustment jamming and decreased accuracy caused by design flaws in the support structure.

[0065] For example, such as Figure 2 As shown, the connector 22 includes two symmetrically arranged first connecting ends 221 and second connecting ends 222 on the top of the first support 21, and two symmetrically arranged third connecting ends 223 and fourth connecting ends 224 on the top of the circumferential rotating assembly 4; the first connecting ends 221 and second connecting ends 222 are located between the third connecting ends 223 and fourth connecting ends 224; the first connecting end 221 is fixedly connected with a pin 225 passing through the first connecting end 221; the second connecting end 222 is fixedly connected with a pin 225 passing through the second connecting end 222; the two pins 225 are respectively fixedly connected to first connecting shafts 226; the two first connecting shafts 226 respectively pass through and are fixedly connected to the inner rings of the first bearings 227; the outer rings of the two first bearings 227 are respectively embedded in the third connecting ends 223 and fourth connecting ends 224.

[0066] Among them, the first connecting end 221 and the second connecting end 222 refer to the key components set on the top of the first support 21 for realizing the rotational connection. They can be made of metal and fixed to the top of the first support 21 by means including but not limited to welding. The third connecting end 223 and the fourth connecting end 224 refer to the corresponding components set on the top of the circumferential rotating assembly 4. They can be formed into a specific shape by machining to adapt to the installation requirements of the first bearing 227.

[0067] The pin 225, as a shaft-shaped component passing through the first connecting end 221 and the second connecting end 222, is intended to reliably transmit rotational motion to the first connecting shaft 226 while ensuring the stability of the connection point.

[0068] The first connecting shaft 226, which is fixedly connected to the pin 225 and passes through the inner ring of the first bearing 227, serves to provide a stable base for the bearing to rotate.

[0069] The first bearing 227, as a precision rolling bearing with inner and outer ring structures, aims to eliminate the clearance problem in traditional ball bearing pivots, thereby achieving low-friction and high-precision rotation.

[0070] By optimizing the structural design of connector 22, the problems of gap and wobbling in the rotating connection are effectively solved, ensuring the stability and accuracy of optical lens angle adjustment.

[0071] The first connecting end 221 and the second connecting end 222 are symmetrically arranged on the top of the first support 21, and the third connecting end 223 and the fourth connecting end 224 are symmetrically arranged on the top of the circumferential rotating assembly 4. This layout makes the rotational force evenly distributed and avoids the skew phenomenon caused by stress concentration on one side.

[0072] The positional relationship between the first connecting end 221 and the second connecting end 222, located between the third connecting end 223 and the fourth connecting end 224, makes the connection point closer to the rotation center, reducing the lever effect of external vibration transmission and thus suppressing swaying.

[0073] The design of pin 225 to fix the first connecting shaft 226 reliably transmits the rotational motion to the first connecting shaft 226 through pin 225, providing a stable rotational foundation for subsequent bearing installation.

[0074] The first connecting shaft 226 passes through and is fixedly connected to the inner ring of the first bearing 227. Since the inner ring is rigidly fixed to the connecting shaft, the inner ring rotates synchronously with the shaft when rotating, while the outer ring of the first bearing 227 is embedded in the third connecting end 223 and the fourth connecting end 224 and remains stationary. The precise fit of the bearings eliminates the gap problem in the traditional ball bearing pivot and achieves low friction and high precision rotation.

[0075] In addition, the outer rings of the two first bearings 227 are respectively embedded in the third connecting end 223 and the fourth connecting end 224. This embedding method ensures that the outer rings have no axial or radial displacement during rotation. The overall structure significantly improves the angle holding capability through the bearing preload and fixing mechanism, avoiding angle drift caused by external forces.

[0076] For example, such as Figure 3As shown, each of the two first connecting shafts 226 is provided with a first limiting ring 2261; the two first limiting rings 2261 abut against the inner rings of the two first bearings 227 respectively (i.e., one first limiting ring 2261 abuts against the inner ring of one first bearing 227). Each of the two first connecting shafts 226 is fixedly connected with a first bearing inner pressure ring 2271; the two first bearing inner pressure rings 2271 abut against the inner rings of the two first bearings 227 respectively (i.e., one first bearing inner pressure ring 2271 abuts against the inner ring of one first bearing 227).

[0077] The third connecting end 223 or the fourth connecting end 224 is provided with a first bearing outer pressure ring 2272; the first bearing outer pressure ring 2272 abuts against the side of the outer ring of the first bearing 227 away from the pitch rotation assembly 2.

[0078] The first limiting ring 2261 serves as a mechanical structure for limiting the axial displacement of the inner ring of the first bearing 227. It can be implemented by using a snap ring, nut, or other components with axial limiting function, with the purpose of preventing the inner ring of the first bearing 227 from sliding axially due to external vibration or adjustment force.

[0079] The first bearing inner pressure ring 2271 is a component that is fixed to the first connecting shaft 226 by mechanical clamping. It can be a metal pressure ring, an elastic washer or other structural form. Its purpose is to form a bidirectional clamp with the first limiting ring 2261 to ensure that the inner ring of the first bearing 227 maintains a constant position during rotation.

[0080] The first bearing outer pressure ring 2272 is a component embedded in the connecting end. It can take the form of an embedded pressure ring, a flange, etc. Its purpose is to restrict the movement of the outer ring of the first bearing 227 in the direction of the circumferential rotation assembly 4 and eliminate the axial clearance between the outer ring and the connecting end.

[0081] Through the coordinated design of the first limiting ring 2261, the first bearing inner pressure ring 2271 and the first bearing outer pressure ring 2272, comprehensive axial constraint on the inner and outer rings of the first bearing 227 is achieved; the first limiting ring 2261 cooperates with the first bearing inner pressure ring 2271 to clamp the inner ring of the first bearing 227 from both sides, effectively preventing the inner ring from loosening and shaking in the axial direction.

[0082] The outer pressure ring 2272 of the first bearing is fixed in the third connecting end 223 or the fourth connecting end 224 through an embedded structure, which precisely controls the position of the outer ring of the first bearing 227 and eliminates the axial clearance between the outer ring and the connecting end. This multi-directional axial fixing design significantly improves the stability of the bearing, makes the rotation process of the pitch rotation assembly 2 smoother, and significantly improves the reliability and repeatability of angle adjustment.

[0083] For example, such as Figure 2As shown, the first limiting component 3 includes two symmetrically arranged first bolts 31 that are close to both sides of the first support base 21; the axis of symmetry of the two first bolts 31 is perpendicular to the plane in which the pitch rotation component 2 rotates; the two first bolts 31 pass through and are threaded to the first support base 21 and their ends face the top of the circumferential rotation component 4.

[0084] The first limiting component 3 serves as a rigid limiting structure that restricts the pitch rotation component 2 within the target angle range, and it can be achieved by using a bolt-type mechanical locking method.

[0085] The symmetrical arrangement of the first bolt 31 ensures that the limiting force is evenly distributed on both sides of the first support 21, avoiding skewness or stress concentration caused by unilateral force. The perpendicular relationship between the axis of symmetry of the first bolt 31 and the plane containing the rotation direction of the pitch rotation assembly 2 allows the bolt's advancing direction to act orthogonally on the constraint point of the rotational degree of freedom, thereby achieving precise angle locking. Furthermore, the design of the first bolt 31 penetrating and threadedly connecting to the first support 21 utilizes the self-locking property of the thread, allowing for fine position adjustments by rotating the bolt while providing a stable mechanical locking effect.

[0086] The first limiting component 3 provides rigid support and precise adjustment for the pitch rotation component 2 through two symmetrically arranged first bolts 31. The first bolts 31 penetrate the first support base 21 and are fixed by a threaded connection, with their ends directly abutting the top of the circumferential rotation component 4, forming a rigid contact and avoiding the gap and deformation problems that may arise from traditional elastic elements. This design not only effectively resists the influence of external vibrations or loads on angular stability but also allows the operator to make fine adjustments by rotating the bolts, thereby ensuring that the pitch rotation component 2 remains stable within the target angle range. Furthermore, the symmetrical arrangement of the first bolts 31, combined with the vertical propulsion direction, further optimizes the distribution and effect of the limiting force, significantly improving the stability of the optical axis of the optical lens. The first limiting component 3 transforms the traditional elastic limiting mechanism into a precisely adjustable rigid support structure, solving the technical problem of angular drift caused by external interference and providing a reliable guarantee for the high-precision operation of the optical system.

[0087] For example, such as Figure 2 As shown, the first limiting component 3 also includes two second bolts 32 that are threadedly connected to the first support 21; the ends of the two second bolts 32 respectively abut against the threaded portions of the two first bolts 31.

[0088] The second bolt 32, as a fastener that forms a fixed connection with the first support 21 through a threaded structure, can be implemented using bolts with different pitches or diameters. In practical applications, the end of the second bolt 32 is designed to precisely abut against the threaded area of ​​the first bolt 31, thereby increasing the frictional resistance of the contact surface by utilizing the geometric characteristics between the threads. The purpose is to prevent the first bolt 31 from loosening under vibration or external force, ensuring the long-term stability of the pitch angle.

[0089] By applying reverse pressure to the first bolt 31 using the second bolt 32, the anti-loosening capability of the limiting assembly is significantly improved. Specifically, the contact direction of the second bolt 32 is opposite to the loosening tendency of the first bolt 31, and this design effectively counteracts the influence of external disturbances. Simultaneously, since the second bolt 32 acts directly on the threaded portion of the first bolt 31 rather than the smooth shank, it can more effectively limit the minute displacement of the first bolt 31 along the thread axial or circumferential direction. Based on this, the first bolt 31 can always remain tightly pressed against the circumferential rotation assembly 4, thus avoiding the inadequacy of relying solely on the locking force of the first bolt 31 itself. Furthermore, this design, together with components such as the first support 21 and the circumferential rotation assembly 4, ensures that the pitch angle remains highly stable in dynamic environments, thereby guaranteeing the accuracy of optical lens angle adjustment and the overall durability of the device.

[0090] For example, such as Figure 2 As shown, the circumferential rotation assembly 4 includes a second support base 41; a third connecting end 223 and a fourth connecting end 224 are fixedly connected to the top of the second support base 41; a through hole is opened in the middle of the second support base 41; a second bearing 42 is disposed in the through hole of the second support base 41; a second connecting shaft 43 is fixedly connected to the inner ring of the second bearing 42; the second connecting shaft 43 is fixedly connected to the base 6; the axis of the second bearing 42 is collinear with the axis of the second connecting shaft 43 and perpendicular to the upper surface of the base 6.

[0091] The second support base 41, as a core structural component that supports and connects other parts, can be made of metal through precision machining, with the aim of providing a stable installation reference and sufficient mechanical strength.

[0092] The third connection end 223 and the fourth connection end 224 can be understood as specific structures for connecting the pitch rotation assembly 2. They can be fixedly connected by means including but not limited to welding, in order to ensure the reliability of the connection and reduce the possibility of loosening.

[0093] The second bearing 42, as a precision component with relative rotation between its inner and outer rings, can be implemented using deep groove ball bearings or angular contact ball bearings, with the aim of providing precise rotational support and eliminating radial clearance. Furthermore, the second connecting shaft 43 can be a hardened steel shaft, which is fixed to the inner ring of the bearing via an interference fit or key connection, with the aim of establishing a stable rotational reference.

[0094] With the second support base 41 as the core load-bearing component, the third connection end 223 and the fourth connection end 224 fixedly connected to its top can ensure that the connector 22 of the pitch rotation assembly 2 is stably embedded, effectively avoiding the axial displacement problem caused by loose connection points.

[0095] The through hole in the middle of the second support 41 forms a precise fit with the second bearing 42. The precise size of the through hole constrains the bearing installation position, so that the outer ring of the bearing fits tightly with the support, thereby significantly reducing rotational friction and suppressing shaking.

[0096] The rigid fixing design of the inner ring of the second bearing 42 and the second connecting shaft 43 ensures that only the outer ring of the bearing moves relative to each other during rotation, thus forming a stable rotation reference.

[0097] The fixed connection between the second connecting shaft 43 and the base 6 makes the base 6 an absolute fixed reference, so that the movement of the entire rotating assembly depends entirely on the precise fit of the bearings, which enhances the system's ability to resist external interference. The design that the axis of the second bearing 42 is collinear with the axis of the second connecting shaft 43 and perpendicular to the upper surface of the base 6 ensures that the rotating shaft is strictly perpendicular to the horizontal reference plane, eliminates tilting error, and strictly limits the circumferential rotation to the horizontal plane.

[0098] For example, such as Figure 2 and Figure 4 As shown, a second limiting ring 431 and a second bearing inner pressure ring 421 are provided on the second connecting shaft 43; the second limiting ring 431 abuts against the side of the inner ring of the second bearing 42 near the base 6; the second bearing inner pressure ring 421 abuts against the side of the inner ring of the second bearing 42 away from the base 6; a second bearing outer pressure ring 422 is provided in the through hole of the second support seat 41; the second bearing outer pressure ring 422 abuts against the side of the outer ring of the second bearing 42 away from the base 6.

[0099] The second limiting ring 431 serves as a positioning structure that restricts the axial movement of the inner ring of the second bearing 42. It can be implemented by using a snap ring, retaining ring, or other mechanical structures with limiting functions. Its purpose is to prevent the inner ring of the second bearing 42 from axially displacing towards the base 6.

[0100] The second bearing inner pressure ring 421, as a component that applies axial preload to the inner ring of the second bearing 42, can be fixed to the second connecting shaft 43 by means of threaded connection, interference fit or welding, so as to ensure that the inner ring is effectively constrained in the direction away from the base 6.

[0101] The second bearing outer pressure ring 422 serves as a clamping component for fixing the outer ring of the second bearing 42. It can be installed in the through hole of the second support 41 by means of embedded installation, bolt fixing or bonding, thereby axially positioning the outer ring.

[0102] By setting a second limiting ring 431 and a second bearing inner pressure ring 421 on the second connecting shaft 43, bidirectional axial fixation of the inner ring of the second bearing 42 is achieved. The second limiting ring 431 limits the inner ring from the side closer to the base 6, while the second bearing inner pressure ring 421 provides reverse constraint from the side farther from the base 6. This symmetrical fixing method effectively eliminates axial clearance of the inner ring. Simultaneously, the second bearing outer pressure ring 422, located within the through hole of the second support seat 41, cooperates with the aforementioned inner ring fixing structure, applying axial pressure from the outer ring side to ensure a tight fit between the outer ring and the second support seat 41. Based on this, the entire circumferential rotating assembly 4 can maintain stable rotational performance when subjected to external vibration or movement, avoiding angular displacement problems caused by bearing axial clearance.

[0103] In this embodiment, the combined design of the second limiting ring 431, the second bearing inner pressure ring 421, and the second bearing outer pressure ring 422, together with the basic structures such as the first support base 21 and the second support base 41, forms a complete axial limiting system. This design not only improves the overall rigidity of the circumferential rotation component 4, but also significantly enhances the stability of the device during the optical lens angle adjustment process, thereby ensuring the long-term reliability of optical accuracy.

[0104] For example, such as Figure 2 As shown, the second limiting component 5 includes two symmetrically arranged connecting seats 51; the two connecting seats 51 are located on the same side of the top of the base 6; each connecting seat 51 is threaded with a third bolt 52 that passes through the connecting seat 51; the ends of the two third bolts 52 respectively abut against the two sides of the second support seat 41.

[0105] The connecting seat 51 serves as a support structure for installing and fixing the limiting components. It can be made of metal in the form of a block or plate to provide a stable installation base.

[0106] The third bolt 52, as a fastener with external threads and capable of axial displacement through rotation, can be made of stainless steel precision screw, with the aim of converting rotational motion into precise linear displacement through thread transmission.

[0107] The stability of the circumferential rotation angle is ensured by constructing a symmetrical mechanical limiting structure. Two symmetrically arranged connecting seats 51 form a mirror layout on the top of the base 6. This layout allows the limiting force to be evenly distributed along the rotation axis, effectively avoiding stress concentration caused by unilateral force.

[0108] The connecting seats 51 are uniformly arranged on the same side of the top of the base 6. This design not only simplifies the operation path but also facilitates the simultaneous operation of the two sides by the adjustment personnel, thereby achieving rapid alignment and balance adjustment. Each connecting seat 51 uses a threaded third bolt 52, which converts axial displacement into precise abutment force control through rotational movement. Its through-type installation method ensures the rigid support of the bolt during the adjustment process.

[0109] The physical contact mechanism where the end of the third bolt 52 directly abuts against both sides of the second support 41 establishes a rigid constraint without gaps, effectively preventing the slight swaying of the rotating component under vibration, solving the problem of angular drift caused by bolt loosening, and maintaining long-term stability through mechanical self-locking characteristics.

[0110] For example, each connector 51 is threaded with a fourth bolt 53; the ends of the two fourth bolts 53 respectively abut against the threaded portions of the two third bolts 52.

[0111] The connecting seat 51 serves as the basic structure for fixing and supporting the limiting component. It can be made of metal and formed by casting or machining, with the aim of providing a stable mounting base for the fourth bolt 53.

[0112] The fourth bolt 53, as a fastener with external threads, can achieve precise position adjustment through standard thread fit, with the purpose of suppressing the loosening tendency of the third bolt 52 through clamping action.

[0113] The threaded portion of the third bolt 52 refers to the area on the bolt surface with spiral protrusions. This area is where loosening is most likely to occur, and therefore becomes the key target area for the action of the fourth bolt 53.

[0114] By setting a fourth bolt 53 on the connecting seat 51 and ensuring its end precisely acts on the threaded area of ​​the third bolt 52, an effective anti-loosening mechanism is formed. Since the fourth bolt 53 directly presses against the threaded portion of the third bolt 52, it effectively suppresses minute displacement and rotational tendencies between the threads, eliminating the possibility of loosening caused by vibration or external force at its source. Simultaneously, the connecting seat 51 maintains a rigid connection with the base 6, ensuring that the force of the fourth bolt 53 can be stably transmitted to the third bolt 52 without requiring additional modifications to the structure of the circumferential rotating assembly 4 or the base 6.

[0115] The present invention has been described in detail above with reference to specific embodiments and exemplary examples; however, these descriptions should not be construed as limiting the present invention. Those skilled in the art will understand that various equivalent substitutions, modifications, or improvements can be made to the technical solutions and embodiments of the present invention without departing from the spirit and scope of the invention, and all such modifications and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A two-dimensional angle adjustment device for an optical lens, characterized in that, It includes a lens assembly (1), a pitch rotation assembly (2), a first limiting assembly (3), a circumferential rotation assembly (4), a second limiting assembly (5), and a base (6). The lens assembly (1) is fixedly connected to the pitch rotation assembly (2); the optical axis of the lens in the lens assembly (1) is located in the plane in which the pitch rotation assembly (2) rotates. The pitch rotation component (2) is rotatably connected to the circumferential rotation component (4), and abuts against the circumferential rotation component (4) within the first rotatable angle range through the first limiting component (3) to maintain the target angle within the first angle range; The circumferential rotation component (4) is rotatably connected to the base (6); the base (6) abuts against the circumferential rotation component (4) within the second angular range within which the circumferential rotation component (4) is rotatable, so as to maintain the target angle within the second angular range; The plane in which the pitch rotation component (2) rotates is perpendicular to the plane in which the circumferential rotation component (4) rotates. The pitch rotation assembly (2) includes a first support base (21); The two sides of the first support base (21) are rotatably connected to the circumferential rotation assembly (4) via connectors (22); When the bottom of the first support (21) is in a horizontal state, it does not contact the top of the circumferential rotation assembly (4); The connector (22) includes two first connecting ends (221) and second connecting ends (222) symmetrically arranged on the top of the first support (21), and two third connecting ends (223) and fourth connecting ends (224) symmetrically arranged on the top of the circumferential rotation assembly (4). The first connection end (221) and the second connection end (222) are located between the third connection end (223) and the fourth connection end (224); The first connecting end (221) is fixedly connected with a pin (225) passing through the first connecting end (221); the second connecting end (222) is fixedly connected with a pin (225) passing through the second connecting end (222). The two pins (225) are respectively fixedly connected to the first connecting shaft (226); the two first connecting shafts (226) pass through and are fixedly connected to the inner ring of the first bearing (227); The outer rings of the two first bearings (227) are respectively embedded in the third connecting end (223) and the fourth connecting end (224); Each of the two first connecting shafts (226) is provided with a first limiting ring (2261); the two first limiting rings (2261) respectively abut against the inner rings of the two first bearings (227); A first bearing inner pressure ring (2271) is fixedly connected to each of the two first connecting shafts (226); the two first bearing inner pressure rings (2271) respectively abut against the inner rings of the two first bearings (227); The third connecting end (223) or the fourth connecting end (224) is provided with a first bearing outer pressure ring (2272); the first bearing outer pressure ring (2272) abuts against the side of the outer ring of the first bearing (227) away from the pitch rotation assembly (2); The first limiting component (3) includes two symmetrically arranged first bolts (31) that are respectively close to both sides of the first support base (21); the axis of symmetry of the two first bolts (31) is perpendicular to the plane in which the pitch rotation component (2) rotates; The two first bolts (31) pass through and are threaded to the first support (21) with their ends facing the top of the circumferential rotating assembly (4); The first limiting component (3) further includes two second bolts (32) that are threaded to the first support base (21); the ends of the two second bolts (32) respectively abut against the threaded portions of the two first bolts (31).

2. The two-dimensional angle adjustment device for optical lenses according to claim 1, characterized in that, The lens assembly (1) includes a frame (11) and a lens (12). The frame (11) has a through hole; the lens (12) is disposed in the through hole of the frame (11); the frame (11) is fixedly connected to the pitch rotation assembly (2).

3. The two-dimensional angle adjustment device for optical lenses according to claim 1, characterized in that, The circumferential rotation assembly (4) includes a second support base (41). The top of the second support base (41) is fixedly connected to the third connecting end (223) and the fourth connecting end (224). The second support (41) has a through hole in the middle; a second bearing (42) is provided in the through hole of the second support (41). The inner ring of the second bearing (42) is fixedly connected to the second connecting shaft (43); The second connecting shaft (43) is fixedly connected to the base (6); The axis of the second bearing (42) is collinear with the axis of the second connecting shaft (43) and perpendicular to the upper surface of the base (6).

4. The two-dimensional angle adjustment device for optical lenses according to claim 3, characterized in that, The second connecting shaft (43) is provided with a second limiting ring (431) and a second bearing inner pressure ring (421). The second limiting ring (431) abuts against the side of the inner ring of the second bearing (42) near the base (6); the inner pressure ring (421) of the second bearing abuts against the side of the inner ring of the second bearing (42) away from the base (6); The second bearing outer pressure ring (422) is provided in the through hole of the second support base (41); the second bearing outer pressure ring (422) abuts against the side of the outer ring of the second bearing (42) away from the base (6).

5. The two-dimensional angle adjustment device for optical lenses according to claim 4, characterized in that, The second limiting component (5) includes two symmetrically arranged connecting seats (51); The two connecting seats (51) are located on the same side of the top of the base (6); each connecting seat (51) is threaded with a third bolt (52) passing through the connecting seat (51). The ends of the two third bolts (52) abut against the two sides of the second support (41).

6. The two-dimensional angle adjustment device for optical lenses according to claim 5, characterized in that, Each of the connecting seats (51) is threaded with a fourth bolt (53); The ends of the two fourth bolts (53) respectively abut against the threaded portions of the two third bolts (52).

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