Optical focusing assembly and mechanism

Abstract

The optical focusing assembly comprises a rotating part, a fixed part, a moving part and a rotating ring which are coaxially arranged, the rotating ring is fixedly sleeved on the outer wall of the rotating piece; the rotating piece sleeves the outer side of the fixed piece, the fixed piece sleeves the outer side of the movable piece, and one end of the movable piece is used for being connected with an optical camera; the rotating piece is provided with at least one spiral conveying track; the fixing piece is provided with at least one linear limiting rail parallel to the axis of the fixing piece. A pushing structure is arranged on the outer wall of the moving part in a protruding mode, and the pushing structure can penetrate through the linear limiting rail and is partially contained in the spiral conveying rail. The rotating ring is adjusted to drive the rotating part to rotate relative to the fixed part, so that the pushing structure can drive the moving part to horizontally move back and forth relative to the fixed part under the cooperation of the spiral conveying track and the linear limiting track, the distance between the optical camera and the to-be-tested sample is adjusted, and focusing processing of the optical camera is achieved. Therefore, the definition of image acquisition of the to-be-detected sample by the optical camera is improved.

Description

Technical Field

[0001] This application relates to the technical field of optical focusing, and particularly to an optical focusing component and mechanism. Background Art

[0002] With the rapid development of industrial automation, optical imaging technology and machine vision have been widely applied in fields such as manufacturing, quality inspection, logistics, medicine, and scientific research, specifically for measuring, judging, and defect detecting target parts.

[0003] In an optical system, different optical lenses are required for different measurement scenarios. At the same time, in order to observe clear and accurate images, it is often necessary to adjust the distance between the camera and the lens, that is, to adjust the back focal length of the optical module to meet the image clarity requirements. The traditional adjustment method is to add or subtract gaskets in front of the camera, or directly move the camera position by making workpieces. Since machining and assembly will both produce certain dimensional errors, the accuracy of the traditional adjustment method is relatively low and the adjustment process is more cumbersome, affecting the observation effect.

[0004] Therefore, it is necessary to provide an improved optical focusing component to solve at least one of the above-mentioned problems in the prior art. Utility Model Content

[0005] This application provides an optical focusing component, including a rotating part, a fixed part, a moving part, and a rotating ring coaxially arranged. The rotating ring is sleeved on the outer wall of the rotating part and fixedly connected to the rotating part. The rotating part is sleeved outside the fixed part, the fixed part is sleeved outside the moving part, and one end of the moving part is used to connect with an optical camera. The rotating part is provided with at least one spiral transmission track. The fixed part is provided with at least one linear limiting track parallel to its axis. A pushing structure protrudes from the outer wall of the moving part. The pushing structure can penetrate through the linear limiting track and be partially accommodated in the spiral transmission track. By adjusting the rotating ring to drive the rotating part to rotate relative to the fixed part, the pushing structure can drive the moving part to reciprocate horizontally relative to the fixed part under the cooperation of the spiral transmission track and the linear limiting track.

[0006] Optionally, a limiting convex part and a limiting structure are respectively arranged on the outer wall of the fixed part. When the rotating part and the fixed part are in a cooperative state, both ends of the rotating part are in limiting abutment with the limiting convex part and the limiting structure respectively.

[0007] Optionally, the cross-sectional height of the limiting protrusion is higher than or equal to the cross-sectional thickness of the rotating part.

[0008] Optionally, the limiting structure includes a limiting member; the limiting member is protruding from the outer wall of the fixing member; and the second end of the rotating member can abut against the side wall of the limiting member.

[0009] Optionally, an outer wall of the fixing member is provided with a mounting groove; the limiting member is partially installed in the mounting groove.

[0010] Optionally, when the rotating member, the fixed member and the movable member are in a coordinated state, a cross-sectional height of the pushing structure is less than or equal to a cross-sectional height of the spiral conveying track.

[0011] Optionally, the rotating ring is provided with a yielding portion, which is recessed in the inner wall of the rotating ring; when the rotating ring is in a mating connection with the rotating member, the yielding length of the yielding portion covers the axial length of the spiral transmission track.

[0012] Optionally, the rotating ring is further provided with a resisting structure; the resisting structure is used to abut against the outer wall of the fixing member.

[0013] Optionally, when the rotating member, the fixing member and the rotating ring are in a mating state, a sealed space is formed between the resisting structure and the rotating member; and the limiting member is accommodated in the sealed space.

[0014] Optionally, an outer wall of the rotating ring is provided with an adjustment scale, and the adjustment scale is used to indicate the displacement of the moving part relative to the fixed part;

[0015] And / or, the outer wall of the rotating ring is provided with an anti-slip structure.

[0016] Optionally, at least one positioning hole is provided on the fixing member, and the positioning member abuts against the outer wall of the moving member after passing through the positioning hole.

[0017] Optionally, a fitting portion is provided at the first end of the fixing member; the fitting portion is used to connect to an external device.

[0018] Optionally, at least one mounting portion is provided on the outer wall of the moving member; and the pushing structure is detachably fixed on the mounting portion.

[0019] Optionally, the mounting portion includes a mounting hole and a mounting position; the mounting position is recessed on the outer wall of the movable member, and the mounting hole is arranged in the mounting position and passes through the inner wall of the movable member; part of the pushing structure is accommodated in the mounting position, and the pushing structure is fixed in the mounting position by a fastener cooperating with the mounting hole.

[0020] Optionally, the moving member includes a strengthening structure, the setting position of the strengthening structure corresponds to the setting position of the installation position, and the strengthening structure protrudes from the inner wall of the moving member, and the installation hole penetrates through the strengthening structure.

[0021] Optionally, the moving member satisfies at least one of the following features:

[0022] A connection position is provided at the extending end of the moving member, and the optical camera is detachably connected to the connection position;

[0023] A filter element installation position is provided on the moving member, and the filter element installation position is recessed in the inner wall of the moving member for placing a filter element.

[0024] A preset installation mark is further provided on the outer wall of the moving member, and the preset installation mark is used to indicate the initial installation position of the moving member and the fixed member.

[0025] The present application further provides an optical focusing mechanism, including an optical camera and the optical focusing assembly as described above, and the optical camera is detachably connected to the optical focusing assembly.

[0026] An optical focusing assembly provided by the present application has at least the following technical effects:

[0027] In the optical focusing assembly of the present application, a rotating member, a fixed member, a moving member and a rotating ring are coaxially arranged; the rotating ring is fixedly sleeved on the outer wall of the rotating member; the rotating member is sleeved outside the fixed member, the fixed member is sleeved outside the moving member, and one end of the moving member is used to connect with the optical camera; the rotating member is provided with at least one spiral transmission track; the fixed member is provided with at least one linear limiting track parallel to its axis; a pushing structure protrudes from the outer wall of the moving member, and the pushing structure can penetrate through the linear limiting track and be partially accommodated in the spiral transmission track; by adjusting the rotating ring to drive the rotating member to rotate relative to the fixed member, the pushing structure can drive the moving member to reciprocate horizontally relative to the fixed member under the cooperation of the spiral transmission track and the linear limiting track, adjust the distance between the optical camera and the sample to be measured, and realize the focusing process of the optical camera, thereby improving the clarity of the image acquisition of the sample to be measured by the optical camera, and the structure is simple, compact and easy to operate. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0029] Figure 1 : Schematic diagram of the connection state between an optical focusing component provided by an embodiment of the present application and an optical camera;

[0030] Figure 2 : Schematic diagram of the overall structure of an optical focusing component provided by an embodiment of the present application;

[0031] Figure 3 : Cross-sectional view of an optical focusing component provided by an embodiment of the present application;

[0032] Figure 4 : Schematic diagram of the structure of a partial optical focusing component provided by an embodiment of the present application;

[0033] Figure 5 : Schematic diagram of the structure of a fixing member provided by an embodiment of the present application;

[0034] Figure 6 : Cross-sectional view of a fixing member provided by an embodiment of the present application;

[0035] Figure 7 : Schematic diagram of the structure of a rotating member provided by an embodiment of the present application;

[0036] Figure 8 : Schematic diagram of the structure of the cooperation between a moving member and a pushing structure provided by an embodiment of the present application;

[0037] Figure 9 : Schematic diagram of the structure of a moving member provided by an embodiment of the present application;

[0038] Figure 10 : Cross-sectional view of a moving member provided by an embodiment of the present application;

[0039] Figure 11 : Schematic diagram of the structure of a rotating ring provided by an embodiment of the present application;

[0040] Figure 12 : Schematic diagram of the structure of a rotating ring provided by an embodiment of the present application;

[0041] Figure 13 : Cross-sectional view of a rotating ring provided by an embodiment of the present application;

[0042] Among them, the corresponding reference numerals in the figure are:

[0043] 1 - Rotating member, 2 - Fixed member, 3 - Moving member, 4 - Pushing structure, 5 - Rotating ring, 6 - Sealing space, 7 - CCD camera, 11 - Spiral conveying track, 21 - Linear limiting track, 22 - Limiting convex part, 23 - Limiting structure, 24 - Fitting part, 25 - Positioning hole, 31 - Mounting part, 32 - Reinforcing structure, 33 - Connecting position, 34 - Filter element mounting position, 35 - Preset mounting mark, 36 - Filter element, 41 - Connecting hole, 51 - Relief part, 52 - Resisting structure, 53 - Threaded hole, 54 - Anti-slip pattern, 231 - Limiting piece, 232 - Mounting groove, 311 - Mounting hole, 312 - Mounting position. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] The following describes the embodiments with reference to the accompanying drawings. The accompanying drawings do not play any limiting role in the application content recorded in the claims.

[0047] Please refer to Figures 1-13 As shown, the embodiment of the present application provides an optical focusing assembly, including a rotating member 1, a fixed member 2, a moving member 3, and a rotating ring 5 that are coaxially arranged; the moving ring 5 is sleeved on the outer wall of the rotating member 1 and is fixedly connected to the rotating member 1; the rotating member 1 is sleeved outside the fixed member 2, the fixed member 2 is sleeved outside the moving member 3, and one end of the moving member 3 is used to connect to an optical camera; the rotating member 1 is provided with at least one spiral conveying track 11; the fixed member 2 is provided with at least one linear limiting track 21 parallel to its axis; a pushing structure 4 protrudes from the outer wall of the moving member 3, and the pushing structure 4 can penetrate the linear limiting track 21 and partially be accommodated in the spiral conveying track 11; by adjusting the rotating ring 5 to drive the rotating member 1 to rotate relative to the fixed member 2, the pushing structure 4 can drive the moving member 3 to reciprocate horizontally relative to the fixed member 2 under the cooperation of the spiral conveying track 11 and the linear limiting track 21.

[0048] Specifically, the rotating member 1, the fixed member 2, and the moving member 3 are all cylindrical structures. The rotating member 1 can be a rotating cylinder, the fixed member 2 can be a fixed cylinder, and the moving member 3 is a moving cylinder. The rotating cylinder is sleeved outside the fixed cylinder, and the fixed cylinder is sleeved outside the moving cylinder.

[0049] In this way, in the state where the rotating member 1, the fixed member 2, and the moving member 3 are cooperatively connected, by adjusting the rotating ring 5 to drive the rotating member 1 to rotate relative to the fixed member 2, the pushing structure 4 can be driven to move under the constraint of the spiral conveying track 11 and the linear limiting track 21, so that the moving track of the moving member 3 is constrained to make a reciprocating horizontal movement along the linear limiting track 21, thereby driving the optical camera to move horizontally relative to the fixed member 2, adjusting the distance between the optical camera and the sample to be measured, and realizing the focusing process of the optical camera, thus improving the clarity of the image acquisition of the sample to be measured by the optical camera.

[0050] Specifically, please refer to Figures 12-13 , specifically, at least one threaded hole 53 is provided on the rotating ring 5, and the threaded hole 53 penetrates through the inner wall of the rotating ring 5; the rotating ring 5 is sleeved on the rotating member 1, and after the set screw passes through the threaded hole 53 and abuts against the rotating member 1, the relative rotation between the rotating ring 5 and the rotating member 1 is restricted, ensuring the strength of the fixed connection between the rotating ring 5 and the rotating member 1.

[0051] In some other embodiments, mating threaded holes are provided on the outer wall of the rotating member 1, and the positions and numbers of the mating threaded holes are respectively matched with the positions and numbers of the threaded holes 53 on the rotating ring 5; the fasteners are sequentially threadedly connected to the threaded holes 53 and the mating threaded holes, thereby fixedly connecting the rotating ring 5 to the rotating member 1.

[0052] In the embodiment of the present application, the rotating ring 5 is fixedly sleeved on the outer wall of the rotating member 1, which is convenient for the operator to drive the moving member 3 to make a reciprocating horizontal movement along the linear limiting track 21 by rotating the rotating ring 5 to drive the rotating member 1 to rotate circumferentially relative to the fixed member 2. At the same time, sleeving the rotating ring 5 on the outer wall of the rotating member 1 can also protect the outer surface of the rotating member 1, preventing external impurities from corroding and wearing the outer surface of the rotating member 1, thereby extending the service life of the rotating member 1.

[0053] Please refer to Figure 6 and Figure 7 , in some preferred embodiments, the spiral conveying track 11 is a spiral groove, the spiral groove has a spiral lead angle and extends along the axial direction of the rotating member 1; the linear limiting track 21 is a linear groove opened along the axial direction of the fixed member 2 and parallel to the axis of the fixed member 2.

[0054] Specifically, in the cooperating state of the rotating member 1, the fixing member 2, and the moving member 3, the angle between the spiral conveying track 11 and the linear limiting track 21 only needs to satisfy that when the rotating member 1 rotates, it can cooperatively drive the moving member 3 to reciprocate horizontally relative to the fixing member 2, and there is no limitation here.

[0055] Specifically, the number of the spiral conveying tracks 11 and the linear limiting tracks 21 can be set according to needs, and there is no limitation here.

[0056] In a preferred embodiment, three spiral conveying tracks 11 are equidistantly arranged in the circumferential direction of the rotating member 1; three linear limiting tracks 21 are arranged on the fixing member 2, and the linear limiting tracks 21 are arranged in one-to-one correspondence and matching with the spiral conveying tracks 11; three pushing structures 4 are installed on the moving member 3, and the installation positions of the pushing structures 4 correspond to the linear limiting tracks 21; each pushing structure 4 passes through its respective matching linear limiting track 21 and is placed in the spiral conveying track 11. By rotating the rotating member 1, the pushing structures 4 in each spiral conveying track 11 can be pushed to move horizontally along the linear limiting tracks 21, thereby improving the smoothness and efficiency of the horizontal movement of the moving member 3.

[0057] Specifically, as Figure 1 , the optical camera can be a CCD camera 7, and the CCD camera 7 is arranged on the same optical axis as the moving member 3, the fixing member 2, and the rotating member 1. The CCD camera 7 is used to collect the image information of the sample to be measured.

[0058] In other embodiments, the optical camera can be other optical cameras such as a CMOS camera.

[0059] In some other embodiments, the optical camera can also be a special-shaped optical lens, or an optical element such as an optical lens group, or a sensor, such as a position-sensitive detector PSD, etc.

[0060] Please refer to Figures 4-5 , in some embodiments, a limiting convex portion 22 and a limiting structure 23 are respectively arranged on the outer wall of the fixing member 2; in the cooperating state of the rotating member 1 and the fixing member 2, the two ends of the rotating member 1 are respectively in limiting abutment with the limiting convex portion 22 and the limiting structure 23.

[0061] It should be noted that the first end of the rotating member 1 is the end facing the limiting convex portion 22, and the second end of the rotating member 1 is the end facing the limiting structure 23.

[0062] Specifically, the limiting convex portion 22 is a limiting protrusion and protrudes from the outer wall of the fixing member 2; the first end of the rotating member 1 can be in abutment with the limiting protrusion; in other embodiments, the limiting convex portion 22 can be a limiting convex block or other structural members with a limiting function, and there is no limitation here.

[0063] Specifically, to ensure the reliability of the contact between the rotating member 1 and the limiting convex portion 22, the cross-sectional height of the limiting convex portion 22 is greater than or equal to the cross-sectional thickness of the rotating member 1. The cross-sectional height of the limiting convex portion 22 only needs to meet the reliable contact of the rotating member 1 with the limiting protrusion, and there is no limitation here.

[0064] Please refer to Figure 3 and Figure 4 , specifically, the limiting structure 23 includes a limiting member 231; the limiting member 231 protrudes from the outer wall of the fixing member 2; the second end of the rotating member 1 can contact the side wall of the limiting member 231.

[0065] Specifically, the limiting member 231 can be an elastic retaining ring. The elastic retaining ring is sleeved on the outer wall of the fixing member 2, and the distance between the elastic retaining ring and the limiting convex portion 22 is adapted to the axial length of the rotating member 1. One end of the rotating member 1 contacts the limiting convex portion 22, and the other end of the rotating member 1 contacts the side wall of the elastic retaining ring.

[0066] Specifically, the contact mode between the rotating member 1 and the side wall of the elastic retaining ring is a linear contact mode, which can effectively reduce the friction between the rotating member 1 and the elastic retaining ring during rotation and improve the smoothness of the rotation of the rotating member 1.

[0067] In the embodiment of the present application, by respectively providing a limiting convex portion 22 and a limiting structure 23 on the outer wall of the fixing member 2, and the distance between the limiting convex portion 22 and the limiting structure 23 is adapted to the axial length of the rotating member 1. In the state where the rotating member 1 is matched with the fixing member 2, one end of the rotating member 1 contacts the limiting convex portion 22, and the other end of the rotating member 1 contacts the limiting structure 23. Thus, without affecting the rotation of the rotating member 1 relative to the fixing member 2, the axial displacement of the rotating member 1 is restricted, and the accuracy of the adjustment of the optical focusing assembly is improved.

[0068] Please refer to Figures 5-6 , in some embodiments, an installation groove 232 is provided on the outer wall of the fixing member 2; a part of the limiting member 231 is installed in the installation groove 232.

[0069] Specifically, the installation groove 232 is recessed on the outer wall of the fixing member 2. The limiting member 231 can be an elastic retaining ring. A part of the elastic retaining ring protrudes from the outer wall of the fixing member 2 for contacting the rotating member 1, and the remaining part of the elastic retaining ring for limiting contact is installed in the installation groove 232.

[0070] Please refer to Figure 6 , the fixing member 2 is further provided with a matching portion 24; the matching portion 24 is used for connecting with an external device.

[0071] Specifically, the external device can be a lens barrel assembly. The matching portion 24 is provided with a threaded structure, and the lens barrel assembly and the fixing member 2 can be fixedly connected through the threaded structure.

[0072] Please refer to Figures 3-4 In some embodiments, in the state where the rotating member 1, the fixing member 2 and the moving member 3 are in cooperation, the sectional height of the pushing structure 4 is less than or equal to the sectional height of the spiral conveying track 11.

[0073] Specifically, one end of the pushing structure 4 is fixed to the outer wall of the moving member 3, and the other end of the pushing structure 4 penetrates through the linear limiting track 21 and is partially accommodated in the spiral conveying track 11, and does not exceed the sectional height of the spiral conveying track 11, so that there is a certain gap between the upper surface of the pushing structure 4 and the rotating ring 5. Furthermore, when the pushing structure 4 moves horizontally under the cooperation of the linear limiting track 21 and the spiral conveying track 11, interference between the pushing structure 4 and the rotating ring 5 is avoided, ensuring the stability and smoothness of the movement of the pushing structure 4 in the linear limiting track 21 and the spiral conveying track 11, and at the same time reducing the overall size of the optical focusing assembly.

[0074] Please refer to Figure 13 and in combination with Figure 3 In the state where the rotating ring 5 is connected to the rotating member 1 in cooperation, a relief portion 51 is provided on the rotating ring 5, and the relief portion 51 is recessed in the inner wall of the rotating ring 5; the relief length of the relief portion 51 covers the axial length of the spiral conveying track 11.

[0075] Specifically, the relief portion 51 is a relief groove recessed in the inner wall of the rotating ring 5, a lubricant is coated on the pushing structure 4, and the relief groove can be used to accommodate the lubricant extruded from the pushing structure 4, thereby improving the smoothness of the movement of the pushing structure 4 in the spiral conveying track 11 and the linear limiting track 21.

[0076] Please refer to Figure 13 In some embodiments, the rotating ring 5 is further provided with a resisting structure 52; the resisting structure 52 is used to abut against the outer wall of the fixing member 2.

[0077] Specifically, the resisting structure 52 is provided at one end of the rotating ring 5 facing the limiting member 231, that is, the second end of the rotating ring 5 facing the rotating member 1.

[0078] Specifically, the resisting structure 52 can be a resisting shaft, and the resisting shaft protrudes from the inner wall of the rotating ring 5.

[0079] The cam 5 is provided with a plurality of cams 52 which are provided on the outer side of the rotating member 1, and the cam 5 is provided with a plurality of cams 53 which are provided on the outer side of the rotating member 1. The cam 5 is provided with a plurality of cams 54 which are provided on the outer side of the rotating member 1, and the cam 5 is provided with a plurality of cams 55 which are provided on the outer side of the rotating member 1. The cam 5 is provided with a plurality of cams 56 which are provided on the outer side of the rotating member 1, and the cam 5 is provided with a plurality of cams 57 which are provided on the outer side of the rotating member 1.

[0080] See also Figure 3 and Figure 12 In some embodiments, when the rotating member 1 , the fixing member 2 and the rotating ring 5 are in a coordinated state, a sealed space 6 is formed between the resisting structure 52 and the rotating member 1 ; the limiting member 231 is accommodated in the sealed space 6 .

[0081] In the embodiment of the present application, the limit member 231 can be partially accommodated in the sealed space 6, and one side of the limit member 231 is in contact with the rotating member 1, and there is a gap between the other side of the limit member 231 and the resisting structure 52, so that in the process of the rotating ring 5 driving the rotating member 1 to rotate relative to the fixed member 2, friction between the resisting structure 52 and the limit member 231 can be avoided, thereby affecting the service life of the limit member 231. In addition, the limit member 231 is arranged on the inner side of the resisting structure 52, which can prevent the limit member 231 from falling off the fixed member 2, and at the same time prevent external impurities from entering the sealed space 6 and causing pollution and damage to the limit member 231.

[0082] In some embodiments, an outer wall of the rotating ring 5 is provided with an adjustment scale, and the adjustment scale is used to indicate the displacement of the moving part 3 relative to the fixed part 2 .

[0083] In the embodiment of the present application, by providing an adjustment scale on the outer wall of the rotating ring 5, the rotation angle of the rotating ring 5 can be accurately and directly observed, thereby determining the displacement of the moving part 3 relative to the fixed part 2, thereby improving the accuracy of the adjustment.

[0084] See also Figure 12 and Figure 13 In some embodiments, the outer surface of the rotating ring 5 is provided with an anti-skid structure 54, which is evenly distributed along the outer surface of the rotating ring 5, which is convenient for the operator to rotate and has an anti-skid effect, thereby improving the convenience of adjustment. The anti-skid structure 54 can be in the shape of strip convex patterns or the like.

[0085] Please refer to Figure 9 and Figure 10 In some embodiments, at least one mounting portion 31 is provided on the outer wall of the moving member 3; the pushing structure 4 is detachably fixed to the mounting portion 31.

[0086] Specifically, the mounting portion 31 includes a mounting hole 311 and a mounting position 312; the mounting position 312 is recessed on the outer wall of the moving member 3, and the mounting hole 311 is provided in the mounting position 312 and penetrates the inner wall of the moving member 3; a part of the pushing structure 4 is received in the mounting position 312, and the pushing structure 4 is fixed in the mounting position 312 by cooperating with the mounting hole 311 through a fastener.

[0087] Specifically, the mounting position 312 is a mounting groove recessed on the outer wall of the moving member 3, and the depth of the recess is less than the wall thickness of the moving member 3.

[0088] Specifically, a through connection hole 41 is provided on the pushing structure 4, and one end of the fastener passes through the connection hole 41 and is threadedly connected to the mounting hole 311, thereby fixedly connecting the pushing structure 4 to the mounting position 312.

[0089] Specifically, the connection hole 41 can be a countersunk hole. In the state where the pushing structure 4 is fixedly connected to the mounting position 312 through a fastener, the fastener can be completely received in the countersunk hole, that is, the cross-sectional height of the fastener is not higher than the cross-sectional height of the pushing structure 4, avoiding the fastener protruding from the pushing structure 4 and causing interference wear to the rotating ring 5, and further improving the smoothness of the horizontal movement of the pushing structure 4 along the linear limiting track 21.

[0090] Specifically, the structure of the mounting position 312 matches the shape of the pushing structure 4 that cooperates with it, improving the fitting effect between the pushing structure 4 and the mounting position 312.

[0091] Please refer to Figure 11 , the pushing structure 4 is a pushing taper shaft, the end face of the second end of the pushing taper shaft is a smooth curved surface, the mounting position 312 is a circular groove opened on the outer wall of the moving member 3, and the second end of the pushing structure 4 is completely attached to the inner wall of the circular groove, achieving the effect of integral cooperation between the pushing structure 4 and the mounting position 312.

[0092] Specifically, the mounting hole 311 is a threaded hole, and the pushing structure 4 is fixed in the mounting position 312 of the moving member 3 through a fastener.

[0093] In the embodiment of the present application, by respectively arranging a mounting hole 311 and a mounting position 312 on the outer wall of the moving member 3, the second end of the pushing structure 4 can be accommodated in the mounting position 312, and the pushing structure 4 can be fixed in the mounting position 312 of the moving member 3 through a fastener, which improves the stability and reliability of the connection between the pushing structure 4 and the moving member 3, and at the same time can further enhance the stress strength of the overall connection between the pushing structure 4 and the moving member 3.

[0094] Optionally, three mounting parts 31 are circumferentially and equidistantly arranged on the outer wall of the moving member 3, which are respectively used for fixedly connecting with the pushing structure 4, thereby improving the smoothness and efficiency of the pushing structure 4 driving the moving member 3 to move horizontally. The number of the mounting parts 31 can be set as required and is not limited herein.

[0095] In some other embodiments, the mounting part 31 is a threaded mounting hole, and one end of the pushing structure 4 has an external connection thread, and the pushing structure 4 is threadedly connected in the threaded mounting hole.

[0096] Please refer to Figure 10 , in some embodiments, the moving member 3 includes a strengthening structure 32, the setting position of the strengthening structure 32 corresponds to the setting position of the mounting position 312, and it protrudes from the inner wall of the moving member 3, and the mounting hole 311 penetrates through the strengthening structure 32.

[0097] Specifically, the setting position of the strengthening structure 32 corresponds to the mounting position 312, and the strengthening structure 32 can be formed by extending from the inner wall of the moving member 3 towards the axis of the moving member 3.

[0098] Specifically, the mounting hole 311 penetrates through the strengthening structure 32.

[0099] In the embodiment of the present application, by arranging a strengthening structure 32 extending towards its axis on the inner wall of the moving member 3 and the mounting hole 311 penetrating through the strengthening structure 32, the strength and stiffness of the moving member 3 at the strengthening structure 32 can be enhanced, and the phenomenon that the moving member 3 is deformed or cracked due to directly opening the mounting position 312 and the mounting hole 311 on the moving member 3 can be avoided, thereby improving the bearing capacity of the moving member 3 at the strengthening structure 32 and ensuring the reliability of the fitting connection between the pushing structure 4 and the moving member 3.

[0100] Please refer to Figure 9 , in some embodiments, a connection position 33 is arranged at the extending end of the moving member 3, and the optical camera is detachably connected to the connection position 33.

[0101] Specifically, the connection position 33 can be a connection card slot arranged on the outer wall of the moving member 3, and the optical camera can be detachably connected to the moving member 3 by connecting the card slot with the card projection of the optical camera. The specific structure of the connection position 33 can be set as required and is not limited herein.

[0102] Please refer to Figure 10 In some embodiments, a filter element mounting position 34 is provided on the moving member 3. The filter element mounting position 34 is recessed in the inner wall of the moving member 3 for placing the filter element 36.

[0103] Specifically, the filter element mounting position 34 is provided at the extended end of the moving member 3, that is, at one end of the moving member 3 close to the assembly with the optical camera. The filter element 36 can adjust the amount of light entering the optical camera, thereby improving the imaging quality and effect of the optical camera.

[0104] A filter lens ring can be provided inside the filter element mounting position 34, and the filter element 36 is fixedly installed inside the filter lens ring, ensuring the stability and reliability of the installation of the filter element 36.

[0105] Please refer to Figure 5 In some embodiments, at least one positioning hole 25 is provided on the fixing member 2, and the positioning member passes through the positioning hole 25 and abuts against the outer wall of the moving member 3.

[0106] Specifically, the positioning hole 25 is a positioning threaded hole, and the positioning member is a positioning screw or a positioning pin, etc.

[0107] In the embodiments of the present application, after the focusing of the optical camera is completed, the positioning member passes through the positioning hole 25 and is tightly connected to the outer wall of the moving member 3 to limit the moving member 3 and prevent the moving member 3 from moving abnormally and affecting the focusing effect.

[0108] Please refer to Figure 8 and Figure 10 In some embodiments, a preset installation mark 35 is further provided on the outer wall of the moving member 3; the preset installation mark 35 is used to indicate the initial installation position of the moving member 3 and the fixing member 2.

[0109] Specifically, the preset installation mark 35 can be a concave ring groove recessed in the outer wall of the moving member 3. The specific structure of the preset installation mark 35 can be set as needed and is not limited here.

[0110] In the embodiments of the present application, by providing the preset installation mark 35, it can be ensured that the moving member 3 and the fixing member 2 can be accurately fitted to the correct position during the installation process, improving the assembly efficiency of the moving member 3 and the fixing member 2.

[0111] The embodiments of the present application further provide an optical focusing mechanism, including an optical camera and the optical focusing assembly as described above. The optical camera is connected to the optical focusing assembly. Specifically, the optical camera is detachably and fixedly connected to one end of the optical focusing assembly, and the other end of the optical focusing assembly can be connected to an external device such as a lens barrel. By adjusting the optical focusing assembly, the distance between the optical camera and the lens barrel can be changed, thereby realizing the focusing of the optical camera.

[0112] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments.

[0113] It should be noted that all the features described in this application (including the technical features described in different embodiments) can be combined arbitrarily under reasonable circumstances, and the new technical solutions formed by the combination are within the protection scope of this application.

[0114] The above are only the preferred embodiments of this application, and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. An optical focusing component, characterized in that, It comprises a rotating part (1), a fixed part (2), a moving part (3) and a rotating ring (5) which are coaxially arranged; The rotating ring (5) is sleeved on the outer wall of the rotating member (1) and is fixedly connected to the rotating member (1); the rotating member (1) is sleeved on the outer side of the fixed member (2), the fixed member (2) is sleeved on the outer side of the moving member (3), and one end of the moving member (3) is used to be connected to an optical camera; The rotating member (1) is provided with at least one spiral transmission track (11); the fixed member (2) is provided with at least one linear limiting track (21) parallel to its axis; The outer wall of the moving member (3) is protrudingly provided with a pushing structure (4), and the pushing structure (4) can penetrate the linear limiting track (21) and be partially accommodated in the spiral transmission track (11); The rotating ring (5) is adjusted so that it drives the rotating member (1) to rotate relative to the fixed member (2), so that the pushing structure (4) can drive the movable member (3) to move reciprocatingly horizontally relative to the fixed member (2) under the cooperation of the spiral transmission track (11) and the linear limiting track (21).

2. The optical focusing component according to claim 1, wherein A limiting protrusion (22) and a limiting structure (23) are provided on the outer wall of the fixing member (2); When the rotating member (1) is in a matching state with the fixing member (2), two ends of the rotating member (1) are in limiting contact with the limiting protrusion (22) and the limiting structure (23) respectively.

3. The optical focusing assembly according to claim 2, wherein, The cross-sectional height of the limiting protrusion (22) is greater than or equal to the cross-sectional thickness of the rotating member (1).

4. The optical focusing component according to claim 2, wherein The limiting structure (23) comprises a limiting member (231); The limiting member (231) is protrudingly arranged on the outer wall of the fixing member (2); The second end of the rotating member (1) can abut against the side wall of the limiting member (231).

5. The optical focusing component according to claim 4, wherein, The outer wall of the fixing member (2) is provided with a mounting groove (232); The limiting member (231) is partially installed in the installation groove (232).

6. The optical focusing assembly according to claim 1, wherein When the rotating member (1), the fixed member (2) and the moving member (3) are in a coordinated state, the cross-sectional height of the pushing structure (4) is less than or equal to the cross-sectional height of the spiral transmission track (11).

7. The optical focusing assembly according to claim 1, wherein The rotating ring (5) is provided with a clearance portion (51), and the clearance portion (51) is recessed in the inner wall of the rotating ring (5); when the rotating ring (5) is in a state of mating connection with the rotating member (1), the clearance length of the clearance portion (51) covers the axial length of the spiral transmission track (11).

8. The optical focusing component according to claim 4, wherein, The rotating ring (5) is provided with a resisting structure (52); The retaining structure (52) is used for abutting against the outer wall of the fixing member (2).

9. The optical focusing assembly according to claim 8, wherein When the rotating member (1), the fixed member (2) and the rotating ring (5) are in a matching state, a sealed space (6) is formed between the resisting structure (52) and the rotating member (1); The limiting member (231) is accommodated in the sealed space (6).

10. The optical focusing assembly according to any one of claims 1-9, characterized in that, The outer wall of the rotating ring (5) is provided with an adjustment scale, and the adjustment scale is used to indicate the displacement of the moving part (3) relative to the fixed part (2); And / or, an anti-slip structure (54) is provided on the outer wall of the rotating ring (5).

11. The optical focusing assembly according to any one of claims 1-9, characterized in that, At least one positioning hole (25) is provided on the fixing member (2), and the positioning member abuts against the outer wall of the moving member (3) after passing through the positioning hole (25).

12. The optical focusing assembly according to any one of claims 1-9, characterized in that, The fixing member (2) is provided with a mating portion (24); the mating portion (24) is used for connecting with an external device.

13. The optical focusing assembly according to any one of claims 1-9, characterized in that, At least one mounting portion (31) is provided on the outer wall of the moving member (3); The pushing structure (4) is detachably fixed on the mounting portion (31).

14. The optical focusing component according to claim 13, wherein, The mounting portion (31) includes a mounting hole (311) and a mounting position (312); The mounting position (312) is recessed on the outer wall of the moving member (3), and the mounting hole (311) is provided in the mounting position (312) and penetrates the inner wall of the moving member (3); One end of the pushing structure (4) is received in the mounting position (312), and the pushing structure (4) is fixed in the mounting position (312) by cooperating a fastening member with the mounting hole (311).

15. The optical focusing component according to claim 14, wherein The moving member (3) includes a reinforcing structure (32), the setting position of the reinforcing structure (32) corresponds to the setting position of the mounting position (312), and protrudes from the inner wall of the moving member (3), and the mounting hole (311) penetrates the reinforcing structure (32).

16. The optical focusing assembly according to any one of claims 1-9, characterized in that, The moving member (3) satisfies at least one of the following characteristics: A connecting position (33) is provided at the extending end of the moving member (3), and the optical camera is detachably connected to the connecting position (33); A filter element mounting position (34) is provided on the moving member (3), and the filter element mounting position (34) is recessed in the inner wall of the moving member (3) for placing a filter element (36); A preset mounting mark (35) is provided on the outer wall of the moving member (3), and the preset mounting mark (35) is used to indicate the initial mounting position of the moving member (3) and the fixing member (2).

17. An optical focusing mechanism, characterized in that, An optical camera and an optical focusing assembly as claimed in claims 1-16, wherein the optical camera is detachably connected to the optical focusing assembly.

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