Lens automatic adjustment device

Abstract

The application belongs to the technical field of laser processing, and discloses a lens automatic adjusting device. The lens automatic adjusting device comprises a lens seat assembly and an automatic adjusting module. The lens seat assembly comprises a lens seat and a lens group, and the lens seat is used for positioning the lens group. The automatic adjusting module comprises a rack, and the rack comprises a drawer seat. The lens seat assembly is arranged in a limiting space of the drawer seat. The automatic adjusting module further comprises a linear generator and a motion module. The linear generator is arranged on the rack, and the motion module is arranged at an output end of the linear generator. The lens seat is connected with the motion module. The linear generator is configured to drive the motion module to act. The motion module can drive the lens seat to move in the limiting space, so as to adjust the position of the lens seat in the limiting space. The lens automatic adjusting device provided in the embodiment improves the automation degree of lens group adjustment, and effectively improves the position adjustment efficiency and adjustment precision of the lens group.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, and in particular to an automatic lens adjustment device. Background Technology

[0002] Currently, the means of adjusting the internal lenses of laser processing actuators in industry (such as laser cutting heads and laser welding heads) are very limited. They are usually adjusted by hand-tightening bolts or by using heavy X and Y axis slides to fix the lenses, which is time-consuming and labor-intensive.

[0003] Adjusting the focus of the laser cutting head generally takes about 8 to 10 minutes, and requires a high level of experience and skill from the operator. Different operators will produce different results with significant deviations.

[0004] Therefore, there is an urgent need for an automatic lens adjustment device to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic lens adjustment device, which aims to solve the problem of time-consuming and laborious manual adjustment of lens assembly position in the prior art. This automatic lens adjustment device improves the automation level of lens assembly adjustment and effectively improves the position adjustment efficiency and accuracy of the lens assembly.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The lens automatic adjustment device includes:

[0008] A lens mount assembly includes a lens mount and a lens assembly, wherein the lens mount is used to position the lens assembly;

[0009] An automatic adjustment module includes a frame, the frame including a drawer base, the lens mount assembly being placed within a limiting space of the drawer base, the automatic adjustment module further including a linear generator and a motion module, the linear generator being mounted on the frame, the motion module being located at the output end of the linear generator, the lens mount being connected to the motion module, the linear generator being configured to drive the motion module to move, the motion module being able to move the lens mount within the limiting space to adjust the position of the lens mount within the limiting space.

[0010] Optionally, the lens mount assembly further includes a locking ring. The lens mount has a cylindrical structure with a limiting step inside. One side of the lens assembly abuts against the limiting step. The locking ring is connected inside the cylindrical structure and located on the other side of the lens assembly. The locking ring is used to lock the lens assembly.

[0011] Optionally, the lens mount assembly further includes a first O-ring disposed between the lens mount and the locking ring.

[0012] Optionally, the linear generator is connected to the motion module via a guide module, the guide module being mounted on the frame.

[0013] Optionally, the guide module includes a bushing and a connecting steel shaft that slides through the bushing. The bushing is fixed to the frame. One end of the connecting steel shaft is threaded to the linear generator. The other end of the connecting steel shaft is fitted with an elastic element, and the motion module abuts against the elastic element.

[0014] Optionally, the motion module includes two motion components movably connected by an extension flange, two linear generators are provided, and the two linear generators are connected to the two motion components in a one-to-one correspondence, and the mirror mount is connected to the extension flange.

[0015] Optionally, the motion assembly includes a push flange, a guide shaft, and a linear bearing. One end of the push flange abuts against the elastic element, both ends of the guide shaft are connected to the extension flange, and the other end of the push flange is provided with a guide hole. The linear bearing is fixedly inserted into the guide hole and sleeved on the guide shaft.

[0016] Optionally, the automatic lens adjustment device further includes a fixed cavity, which is detachably connected to the frame, and the fixed cavity is provided with a first receiving cavity for accommodating the drawer seat.

[0017] Optionally, a lubrication ring is provided between the mirror mount and the fixed cavity.

[0018] Optionally, the lens automatic adjustment device further includes a control component, which includes a first circuit board and a second circuit board electrically connected to each other, the second circuit board being electrically connected to the linear generator.

[0019] The beneficial effects of the present invention are as follows: The automatic lens adjustment device provided by the present invention, by setting an automatic adjustment module, when it is necessary to adjust the position of the lens assembly in the drawer seat, only needs to activate the linear generator. The linear generator drives the motion module to move, and the motion module drives the lens base to move within the limiting space of the drawer seat, thereby adjusting the position of the lens assembly within the limiting space. This improves the automation level of lens assembly adjustment and effectively improves the position adjustment efficiency and adjustment accuracy of the lens assembly. Attached Figure Description

[0020] Figure 1 This is a top view of the automatic lens adjustment device provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the assembled lens mount assembly and automatic adjustment module provided in an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the lens mount assembly provided in an embodiment of the present invention;

[0023] Figure 4 This is a three-dimensional view of the lens mount assembly provided in an embodiment of the present invention;

[0024] Figure 5 This is a top view of the automatic adjustment module provided in an embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional view of the guide module provided in an embodiment of the present invention;

[0026] Figure 7 This is a cross-sectional view of the motion module provided in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the motion module in the first state provided in an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the motion module in the second state provided in an embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the first circuit board inserted into the fixed cavity according to an embodiment of the present invention;

[0030] Figure 11 This is an exploded view of the rack provided in an embodiment of the present invention;

[0031] Figure 12 This is a schematic diagram of the electrical connections of the automatic adjustment device provided in an embodiment of the present invention.

[0032] In the picture:

[0033] 100. Lens mount assembly; 110. Lens mount; 111. High-precision vertical surface; 112. Through hole; 120. Lens assembly; 130. Locking ring; 140. First O-ring; 150. Lubrication ring; 160. Plug seal;

[0034] 200. Automatic adjustment module; 210. Frame; 211. Frame body; 212. Drawer seat; 2121. Diamond-shaped placement hole; 213. Drawer cover; 214. Sealing plate; 215. Protective shell; 216. Protective film; 220. Linear generator; 230. Motion module; 231. Extension flange; 2321. Push flange; 2322. Guide shaft; 2323. Linear bearing; 2324. Second O-ring; 2325. Snap ring; 2326. Optical shaft cover plate; 240. Guide module; 241. Bushing; 242. Connecting steel shaft; 243. Elastic element; 244. Pressure plate;

[0035] 300. Fixed cavity; 310. First receiving cavity; 320. Through hole; 330. Outlet hole;

[0036] 410. First circuit board; 420. Second circuit board; 430. Signal female connector. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0038] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0041] This embodiment provides an automatic lens adjustment device that can automatically adjust the position of the lens assembly, aiming to solve the problem of time-consuming and laborious manual adjustment of the lens assembly position in the prior art. The automatic lens adjustment device improves the automation level of lens assembly adjustment and effectively improves the position adjustment efficiency and accuracy of the lens assembly.

[0042] like Figures 1-11 As shown, the automatic lens adjustment device includes a lens holder assembly 100 and an automatic adjustment module 200. The lens holder assembly 100 includes a lens base 110 and a lens assembly 120. The lens base 110 is used to position the lens assembly 120. The automatic adjustment module 200 includes a frame 210, which includes a drawer base 212. The lens holder assembly 100 is placed within the limiting space of the drawer base 212. The automatic adjustment module 200 also includes a linear generator 220 and a motion module 230. The linear generator 220 is mounted on the frame 210, and the motion module 230 is located at the output end of the linear generator 220. The lens base 110 and the motion module 230 are connected. The linear generator 220 is configured to drive the motion module 230 to move. The motion module 230 can drive the lens base 110 to move within the limiting space to adjust the position of the lens base 110 within the limiting space.

[0043] The automatic lens adjustment device provided in this embodiment, by setting up an automatic adjustment module 200, when it is necessary to adjust the position of the lens assembly 120 in the drawer seat 212, only needs to activate the linear generator 220. The linear generator 220 drives the motion module 230 to move, and the motion module 230 drives the lens mount 110 to move in the drawer seat 212. The lens mount 110 generates positional movement to adjust its position in the drawer seat 212, thereby improving the automation level of the lens assembly 120 adjustment and effectively improving the position adjustment efficiency and adjustment accuracy of the lens assembly 120.

[0044] See Figure 3 and Figure 4Optionally, the lens mount assembly 100 further includes a locking ring 130. The lens mount 110 has a cylindrical structure with a limiting step inside. One side of the lens assembly 120 abuts against the limiting step. The locking ring 130 is connected inside the cylindrical structure and located on the other side of the lens assembly 120. The locking ring 130 is used to lock the lens assembly 120, which can lock the lens assembly 120 onto the limiting step, thereby improving the stability of the lens assembly 120. Furthermore, the side of the lens mount 110 has two high-precision vertical surfaces 111. These high-precision vertical surfaces 111 are used for positioning when connected to the motion module 230, thereby improving positioning accuracy.

[0045] The mirror mount 110 is preferably made of aluminum, and its surface is treated with a hard anodizing process to effectively prevent the mirror mount 110 from being burned by the scattered light from the high-power laser. Optionally, the mirror mount 110 is also provided with two through holes 112 for fixed connection with the motion module 230. The outer surface of the locking ring 130 is preferably gold-plated to reflect the scattered light from the high-power laser and prevent the mirror mount 110 from overheating.

[0046] Furthermore, the lens mount assembly 100 also includes a first O-ring 140, which is disposed between the lens mount 110 and the locking ring 130 to achieve a seal between the locking ring 130 and the lens mount 110. In this embodiment, two first O-rings 140 are provided, and the two first O-rings 140 are spaced apart and sleeved on the outside of the locking ring 130, with one first O-ring 140 positioned close to the lens assembly 120. The spaced arrangement of the two first O-rings 140 on the outside of the locking ring 130 can seal the metal dust generated when the lens mount 110 and the locking ring 130 are engaged, preventing the metal dust from contaminating the lens assembly 120 and the drawer seat 212; the placement of the first O-ring 140 close to the lens assembly 120 can ensure that the locking ring 130 and the lens assembly 120 have flexible contact as much as possible, avoiding crushing the lens assembly 120 when the locking ring 130 is tightened.

[0047] In this embodiment, the linear generator 220 is connected to the motion module 230 through the guide module 240. The guide module 240 is mounted on the frame 210. The guide module 240 can ensure that the linear generator 220 has sufficient linear motion accuracy and prevents the cantilever beam effect caused by the overall structure being too long, which would generate torque and damage the linear generator 220.

[0048] like Figure 6As shown, the guide module 240 preferably includes a bushing 241 and a connecting steel shaft 242 that slides through the bushing 241. The bushing 241 is fixed to the frame 210. One end of the connecting steel shaft 242 is threadedly connected to the linear generator 220, and the other end of the connecting steel shaft 242 is fitted with an elastic element 243. The motion module 230 abuts against the elastic element 243. The connecting steel shaft 242 has high precision, high rigidity, and high hardness. When the linear generator 220 moves, the linear generator 220 and the connecting steel shaft 242 move linearly together. The elastic element 243 can effectively eliminate the gap between the motion module 230 and the connecting steel shaft 242. For example, the elastic element 243 can be a butterfly spring or a rectangular spring, etc., depending on the needs. The bushing 241 can also be replaced by a high-precision linear bearing 2323, which only needs to have a linear guiding function.

[0049] Optionally, the guide module 240 also includes a pressure plate 244, which is connected to the frame 210 and covers the outside of the bushing 241 to fix the bushing 241 and prevent the bushing 241 from displacing in the axial direction.

[0050] In this embodiment, the motion module 230 includes two motion components movably connected by an extension flange 231. Two linear generators 220 are provided, each corresponding to one of the two motion components. The mirror mount 110 is connected to the extension flange 231. Preferably, the extension flange 231 has a connection surface that mates with the high-precision vertical surface 111 to improve the connection stability between the mirror mount 110 and the extension flange 231. In use, the motion module 230 and the linear generators 220 form a motion pair. Both linear generators 220 can be activated simultaneously to further adjust the position of the mirror mount 110 in a certain direction, or only one linear generator 220 can be activated to further adjust the position of the mirror mount 110 in another direction, offering flexible application and a wide adjustment range.

[0051] like Figure 7 As shown, specifically, the motion assembly includes a push flange 2321, a guide shaft 2322, and a linear bearing 2323. One end of the push flange 2321 abuts against the elastic element 243, and the other end of the push flange 2321 has a guide hole. The linear bearing 2323 is fixedly inserted into the guide hole and is sleeved on the guide shaft 2322. Both ends of the guide shaft 2322 are connected to the extension flange 231. During position adjustment, the linear generator 220 drives the push flange 2321 to move, which in turn causes the linear bearing 2323 to slide along the guide shaft 2322. This, in turn, causes the extension flange 231 to drive the mirror mount 110 to perform appropriate position adjustment. The adjustment process is stable and reliable.

[0052] Optionally, the motion module 230 further includes an optical axis cover plate 2326. One end of the guide shaft 2322 is inserted into a limiting hole on the extension flange 231, and the optical axis cover plate 2326 covers the limiting hole to limit the guide shaft 2322 and prevent it from passing through the limiting hole. The motion module 230 also includes a second O-ring 2324, which is disposed between the guide shaft 2322 and the optical axis cover plate 2326. Under the action of the optical axis cover plate 2326, the second O-ring 2324 is pressed tight, and the second O-ring 2324 cooperates with the optical axis cover plate 2326 to limit the guide shaft 2322. In this embodiment, the motion module 230 also includes a retaining ring 2325. The linear bearing 2323 and the push flange 2321 are fixed by the retaining ring 2325, and the linear bearing 2323 and the retaining ring 2325 adopt an interference fit to ensure rigidity.

[0053] In this embodiment, the push flange 2321 is made of steel to ensure high precision and high rigidity; the extension flange 231 is made of 6-series aluminum to reduce its weight.

[0054] The push flange 2321 can be specifically configured as a bent structure with a bending angle of 45 degrees. One end of the flange abuts against the elastic element 243, and the other end is provided with a guide hole that passes through the thickness direction. The two push flanges 2321 and the two linear generators 220 are arranged in a one-to-one correspondence, and the two push flanges 2321 extend toward each other in the direction of mutual approach.

[0055] like Figure 8 and Figure 9 As shown, in this embodiment, the two linear generators 220 are arranged parallel to each other, and the guide shaft 2322 is set at a 45-degree angle to the direction of movement of the linear generator 220. Taking the left linear generator 220 moving first as an example, it drives the push flange 2321 to generate a displacement S0 in the Y direction, while the right linear generator 220 remains stationary. The structural system composed of the right linear generator 220 and the right guide module 240 is rigidly stable. At this time, the right push flange 2321 and the right linear bearing 2323 remain stationary, extending... The long flange 231 and the guide shaft 2322 are considered as a whole. The long flange 231 and the guide shaft 2322 move together in the upper right direction at a 45-degree angle to the Y direction, generating a displacement S1. Due to the structural characteristics of the system, the direction of the displacement S1 is the same as the extension direction of the guide shaft 2322. The displacement S1 is the projection of the length S0 onto the extension direction of the guide shaft 2322. This completes one position adjustment of the mirror base 110. Multiple adjustments allow the mirror base 110 and the long flange 231 to change their positions arbitrarily within the drawer seat 212.

[0056] like Figure 3 , Figure 5 , Figure 10 and Figure 11As shown, the automatic lens adjustment device also includes a fixed cavity 300, which is detachably connected to the frame 210. The fixed cavity 300 is provided with a first receiving cavity 310 for storing the drawer seat 212. The drawer seat 212 is inserted into the first receiving cavity 310. The fixed cavity 300 can protect the lens assembly 120 inside the drawer seat 212 from external damage.

[0057] Specifically, the drawer seat 212 is provided with a rhomboid positioning hole 2121, which forms a limiting space. The lens holder assembly 100 is placed in the rhomboid positioning hole 2121 and connected to the motion module 230. The motion module 230 drives the lens holder assembly 100 to move, so as to adjust the position of the lens holder assembly 100 in the rhomboid positioning hole 2121. After the drawer seat 212 is inserted into the first receiving cavity 310, the end faces on both sides of the lens holder assembly 100 contact the side walls of the first receiving cavity 310 respectively. Both side walls of the first receiving cavity 310 are provided with through holes 320 coaxial with the rhomboid positioning hole 2121 for guiding light of the lens holder assembly 100.

[0058] Optionally, a lubrication ring 150 is provided on one end face of the lens mount 110. The lubrication ring 150 is located between the lens mount 110 and the fixing cavity 300, and the lubrication ring 150 helps to improve the smoothness of the movement of the lens mount 110 along the fixing cavity 300. In this embodiment, the lubrication ring 150 is made of UPE (Ultra-high molecular weight polyethylene), which has good self-lubricating properties, good wear resistance, and is heat-resistant and does not shed shavings. In other embodiments, other materials with good wear resistance, such as engineering plastics, can also be used, depending on the needs.

[0059] Furthermore, the other end face of the lens mount 110 is provided with a plug seal 160, which serves as a dynamic seal and can improve the efficiency of inserting or removing the lens mount 110 from the fixed cavity 300.

[0060] See also Figure 11 The frame 210 also includes a frame body 211, which is fitted around the outside of the linear generator 220 and the guide module 240 to improve the coaxiality of the linear generator 220 and the guide module 240, thereby ensuring the linearity of the motion. During assembly, the drawer seat 212 is connected to the frame body 211 through the drawer cover 213. The mirror mount 110 passes through the drawer seat 212 and the drawer cover 213 and is connected to the extension flange 231. The fixed cavity 300 and the drawer cover 213 are detachably connected, improving the convenience of disassembly and assembly.

[0061] The frame 210 preferably also includes a protective shell 215, which is fitted over the outside of the linear generator 220 and is detachably connected to the frame body 211. The protective shell 215 is used to protect the linear generator 220 from external damage. A third O-ring is provided between the protective shell 215 and the frame body 211, and the protective shell 215 and the frame body 211 are sealed together by the third O-ring to prevent external dust from entering the protective shell 215 and improve the reliability of use.

[0062] Furthermore, a protective film 216 is affixed to the end face of the protective shell 215 away from the frame body 211 to improve its aesthetics.

[0063] The lens auto-adjustment device also includes a control component, which includes a first circuit board 410 and a second circuit board 420 electrically connected to each other, and the second circuit board 420 is electrically connected to the linear generator 220.

[0064] Optionally, the fixing cavity 300 is further provided with a second receiving cavity for receiving the first circuit board 410, thereby improving the installation stability of the first circuit board 410. The fixing cavity 300 is also provided with a wiring hole 330 for connecting the first circuit board 410 to external devices via a wiring harness. The rack body 211 is provided with a receiving slot for receiving the second circuit board 420, which improves the installation stability of the second circuit board 420.

[0065] Optionally, the rack 210 also includes a sealing plate 214, which covers the opening of the receiving groove to protect the second circuit board 420 from external damage. A fourth O-ring is provided between the sealing plate 214 and the rack body 211, and the sealing plate 214 and the rack body 211 are sealed together by the fourth O-ring to prevent the second circuit board 420 from being affected by external moisture or dust.

[0066] The second circuit board 420 is provided with terminals. After passing through the frame body 211 and the drawer cover 213, the terminals are connected to the signal female connector 430 on the first circuit board 410. The terminals are used to transmit the power control signal of the linear generator 220.

[0067] Figure 12 This is an electrical connection diagram of the automatic adjustment device provided in an embodiment of the present invention. The second circuit board 420 is electrically connected to the linear generator 220 and is used to transmit power control signals from the linear generator 220. The first circuit board 410 is used to receive and transfer the power and encoder signals from the linear generator 220. The first circuit board 410 can be connected to an external power control board. The external power control board controls the linear generator 220 to operate according to the actual position of the lens assembly 120 and the encoder signal, so as to quickly adjust the position of the lens assembly 120.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic lens adjustment device, characterized in that, include: A lens mount assembly (100) includes a lens mount (110) and a lens assembly (120), wherein the lens mount (110) is used to position the lens assembly (120); An automatic adjustment module (200) includes a frame (210) that includes a drawer base (212). The drawer base (212) is provided with a rhomboid positioning hole (2121), which forms a limiting space. The lens mount assembly (100) is placed in the limiting space of the drawer base (212). The automatic adjustment module (200) also includes a linear generator (220) and a motion module (230). The linear generator (220) is located on the frame (210), and the motion module (230) is located at the output end of the linear generator (220). The lens mount (110) is connected to the motion module (230). The linear generator (220) is configured to drive the motion module (230) to move. The motion module (230) can drive the lens mount (110) to move in the limiting space to adjust the position of the lens mount (110) in the limiting space. The linear generator (220) is connected to the motion module (230) via a guide module (240), and the guide module (240) is mounted on the frame (210); The guide module (240) includes a bushing (241) and a connecting steel shaft (242) that slides through the bushing (241). The bushing (241) is fixed on the frame (210). One end of the connecting steel shaft (242) is threadedly connected to the linear generator (220). The other end of the connecting steel shaft (242) is fitted with an elastic element (243). The motion module (230) abuts against the elastic element (243). The motion module (230) includes two motion components that are movably connected by an extension flange (231). There are two linear generators (220), and the two linear generators (220) are connected to the two motion components in a one-to-one correspondence. The mirror mount (110) is connected to the extension flange (231). The motion assembly includes a push flange (2321), a guide shaft (2322), and a linear bearing (2323). The push flange (2321) is configured as a bent structure with a bending angle of 45 degrees. One end of the push flange (2321) abuts against the elastic element (243). Both ends of the guide shaft (2322) are connected to the extension flange (231). The other end of the push flange (2321) is provided with a guide hole. The linear bearing (2323) is fixedly inserted into the guide hole and is sleeved on the guide shaft (2322). It also includes a control component comprising a first circuit board (410) and a second circuit board (420) electrically connected to each other, the second circuit board (420) being electrically connected to the linear generator (220).

2. The automatic lens adjustment device according to claim 1, characterized in that, The lens mount assembly (100) further includes a locking ring (130). The lens mount (110) has a cylindrical structure with a limiting step inside. One side of the lens assembly (120) abuts against the limiting step. The locking ring (130) is connected inside the cylindrical structure and located on the other side of the lens assembly (120). The locking ring (130) is used to lock the lens assembly (120).

3. The automatic lens adjustment device according to claim 2, characterized in that, The lens mount assembly (100) further includes a first O-ring (140) disposed between the lens mount (110) and the locking ring (130).

4. The automatic lens adjustment device according to claim 1, characterized in that, The automatic lens adjustment device also includes a fixed cavity (300), which is detachably connected to the frame (210). The fixed cavity (300) is provided with a first receiving cavity (310) for receiving the drawer base (212).

5. The automatic lens adjustment device according to claim 4, characterized in that, A lubrication ring (150) is provided between the mirror mount (110) and the fixed cavity (300).

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