Semi-automatic pressing ring locking device for lens assembly

Abstract

The utility model provides a semi-automatic clamping ring locking device for lens assembly. The semi-automatic clamping ring locking device comprises a lens fixing device; the lens fixing device comprises a shell, at least two clamping jaws, a clamping jaw telescoping mechanism and a clamping jaw retracting mechanism. The clamping jaws are radially distributed in the circumferential direction of the center of a lens placement position on the lower surface of the shell and are connected to the lower surface of the shell through a clamping jaw telescopic mechanism; the clamping jaw telescoping mechanism pushes and presses the corresponding clamping jaw towards the center direction of the lens placing position. The clamping jaw retracting mechanism is connected to the upper surface of the shell and is in transmission contact with the clamping jaw telescoping mechanism; the pressing ring bearing seat is fixed right below the lens fixing device; and the lens fixing device is arranged right above the pressing ring bearing seat in a rotatable and liftable manner through the rotating mechanism. The semi-automatic pressing ring locking device for the lens assembly can improve the working efficiency, improve the working specification standard degree, guarantee the consistency of locking products, improve the process yield and quickly switch various machine types, and is simple in structure, easy to process and easy to operate.

Description

Technical Field

[0001] The present application belongs to the technical field of lens assembly, and in particular relates to a semi-automatic pressure ring locking device for lens assembly. Background Art

[0002] Cameras are widely used not only in professional video equipment but also in various fields such as portable devices, security, automobiles, and smart devices. As precision optical components, the quality and reliability of camera assembly directly impact their quality and lifespan. This is particularly important for the securing of the lens and lens barrel after assembly. In production, these components are often secured using methods such as gluing, applying a pressure ring, or a combination of the two. Among these, pressure ring locking, as a stable and reworkable fixing method, is widely used for securing the lens barrel after assembly, particularly for glass-plastic hybrid lenses. However, in pilot production and small-batch production, manual pressure ring locking is often used due to the high cost of automated equipment and the difficulty and long debugging cycles. This manual process is not only inefficient, but also often results in inconsistent locking and appearance issues such as dirt and scratches due to operator variability and contact, impacting quality and yield. Utility Model Content

[0003] In response to the above-mentioned deficiencies in the existing technology, the utility model provides a semi-automatic pressing ring locking device for lens assembly, which can realize semi-automatic locking of the lens pressing ring, improve work efficiency, and improve the standardization of work specifications. It can not only ensure the consistency of the locked products, but also reduce the appearance problems caused by manual touch to improve the process yield. It can quickly switch between multiple models, and has a simple structure, is easy to process and easy to operate.

[0004] In order to achieve the above-mentioned object, the utility model provides a semi-automatic pressing ring locking device for lens assembly, comprising:

[0005] Lens fixing device;

[0006] The lens fixing device includes a housing, at least two clamping jaws, a clamping jaw retracting mechanism, and a clamping jaw retracting mechanism; the clamping jaws are radially distributed along the circumference of the lens placement center on the lower surface of the housing and are connected to the lower surface of the housing via the clamping jaw retracting mechanism; the clamping jaw retracting mechanism pushes the corresponding clamping jaws toward the center of the lens placement center; the clamping jaw retracting mechanism is connected to the upper surface of the housing and contacts the clamping jaw retracting mechanism through transmission;

[0007] A pressure ring seat, the pressure ring seat is fixed directly below the lens fixing device;

[0008] The lens fixing device is rotatably and liftably arranged just above the pressure ring seat through the rotating mechanism.

[0009] According to one embodiment of the present application, the clamping claw retracting mechanism includes a slider and a first compression spring; the shell forms at least two sliding grooves, and the sliding grooves are radially distributed along the circumference of the center of the lens placement position; the slider can be slidably arranged in the sliding groove along the sliding groove, and the first compression spring is pressed between the first end of the slider and the outer end of the sliding groove; the slider includes a slider body and a protrusion, and the protrusion is formed at one end of the slider body adjacent to the center of the lens placement position; the inner end of the sliding groove forms a first opening and limits the slider body; the protrusion can extend from the first opening; the slider and the clamping claw are detachably fixedly connected one by one; the clamping claw retraction mechanism transmits contact to the protrusion.

[0010] According to one embodiment of the present application, the clamp retraction mechanism includes a cam, a second compression spring, a limiting column and a button; the cam is pivotally connected to the upper surface of the shell and its center position corresponds to the center of the lens placement position; the cam includes a cam body and at least two blades, the blades are distributed along the circumference of the cam body and the ends of the blades contact the protrusions of the slider; the second compression spring is compressed and installed between the first side of the blade and the shell; a button mounting groove is formed on the upper surface of the shell, and the button can be slidably arranged in the button mounting groove along the button mounting groove; a second opening is formed at the outer end of the button mounting groove, and the outer end of the button can extend from the second opening, and the mounting groove limits the button; a third opening is formed at the inner end of the button mounting groove, and the inner end of the button extends from the third opening and contacts the second side of one of the blades; the limiting column is connected to the upper surface of the shell and limits the blade.

[0011] According to one embodiment of the present application, both sides of the middle portion of the button protrude outward to form a limiting portion, and the second opening of the button mounting groove limits the limiting portion.

[0012] According to one embodiment of the present application, the rotating mechanism includes a rotating shaft and a support frame; the support frame includes a base, a support arm and a support column; the support arm is fixed above the base through the support column; the top of the lens fixing device is connected to the rotating shaft; the rotating shaft is rotatably and liftably vertically passed through the support arm; the pressure ring seat is fixed on the base.

[0013] According to one embodiment of the present application, a manual knob is provided on the top of the rotating shaft.

[0014] According to one embodiment of the present application, the inner end of the clamping jaw is arc-shaped.

[0015] According to one embodiment of the present application, the pressure ring seat includes a hole, and the shape of the hole includes square, circular or polygonal.

[0016] According to one embodiment of the present application, the protrusions of the blade end and the slider are both arc-shaped.

[0017] According to one embodiment of the present application, the outer diameter D of the first compression spring is 3 to 10 mm; the wire diameter d of the first compression spring is 0.2 to 1.2 mm.

[0018] The utility model adopts the above technical solution, so that it has the following beneficial effects:

[0019] The lens fixture, pressure ring holder, and rotating mechanism collaborate to achieve semi-automatic lens pressure ring locking. This replaces manual lens pressure ring locking, improving efficiency and ensuring standardized operation. This ensures consistent product locking while reducing cosmetic defects caused by manual handling, thereby improving process yield. The slider and clamping jaws are detachably connected, allowing for quick replacement of different-caliber clamping jaws to accommodate lens and pressure ring locking of varying sizes and shapes, enabling rapid model switching. Furthermore, its simple structure is easy to manufacture and operate, replacing large, complex equipment and effectively reducing initial equipment investment and long debugging cycles during pilot production, thereby lowering costs. The coordination of a first and second compression springs, a cam, a slider, a button, and the clamping jaws enables semi-automatic tightening and loosening of the clamping jaws. The rotating mechanism drives the lens fixture and lens to rotate together. The button is designed as a cross-shaped key with one long and one short section. The protruding stopper on the button limits its outward travel to prevent it from bouncing off. A stopper post secures the blade, ensuring constant contact between the blade and the slider's protrusion. The hole size and shape are determined by the outer shape of the lens clamping ring and can be square, circular, or polygonal to meet various requirements. The protrusions on the blade ends and the slider are both curved to facilitate the opening and closing of the clamping jaws. The outer diameter D of the first compression spring is 3-10 mm; the wire diameter d of the first compression spring is 0.2-1.2 mm, which is used to control the clamping force of the clamping jaws to avoid improper lens clamping or damage due to improper selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural schematic diagram of a semi-automatic pressure ring locking device for lens assembly according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of the upper surface of the housing of an embodiment of the present utility model;

[0023] Figure 3 This is a schematic structural diagram of the lower surface of the housing of an embodiment of the present utility model;

[0024] Figure 4 This is a structural diagram of a pressure ring seat according to an embodiment of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of the first compression spring in an embodiment of the present utility model.

[0026] Description of Figure Numbers:

[0027] 1- Lens fixing device;

[0028] 2-pressure ring bearing;

[0029] 3-support frame;

[0030] 301-base; 302-support column; 303-support arm;

[0031] 4-Manual knob;

[0032] 5-rotation axis;

[0033] 6-first compression spring;

[0034] 7- Cam;

[0035] 8- Slider;

[0036] 9-button;

[0037] 10-grip jaws;

[0038] 11- upper surface of the housing; 111- lower surface of the housing;

[0039] 12-limiting column;

[0040] 13-lens;

[0041] 14-pressing ring;

[0042] 15-Second compression spring. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] It should be noted that, in this specification, the expressions first, second, third, etc. are only used to distinguish one feature from another feature, and do not mean any limitation to the features.

[0045] It should also be understood that the terms "comprises," "including," "having," "includes," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application." And, the term "exemplary" is intended to refer to an example or illustration.

[0046] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal manner unless expressly defined as such herein.

[0047] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present application can be combined with each other. The features, principles and other aspects of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] Exemplary embodiments

[0049] See also Figures 1 to 5 , a lens assembly semi-automatic pressure ring locking device according to an exemplary embodiment of the present application comprises: a lens fixing device 1, a pressure ring holder 2 and a rotating mechanism;

[0050] The lens fixing device 1 includes a housing, at least two clamping jaws 10, a clamping jaw extension mechanism, and a clamping jaw retraction mechanism. The clamping jaws 10 are radially distributed along the circumference of the lens placement center of the lower surface 111 of the housing and are connected to the lower surface 111 of the housing via the clamping jaw extension mechanism. The clamping jaw extension mechanism pushes the corresponding clamping jaws 10 toward the center of the lens placement center. The clamping jaw retraction mechanism is connected to the upper surface 11 of the housing and contacts the clamping jaw extension mechanism.

[0051] The pressure ring seat 2 is fixed directly below the lens fixing device 1;

[0052] The lens fixing device 1 is rotatably and liftably arranged directly above the pressure ring seat 2 via the rotating mechanism;

[0053] In this embodiment, the lens fixing device 1 and the pressure ring seat 2 are installed facing each other, the lens fixing device 1 is a rotatable end, and the pressure ring seat 2 is a fixed end; the lens fixing device 1 can naturally approach the pressure ring seat 2 under the action of gravity, and the lens 13 installed on the lens fixing device 1 can contact the pressure ring installed on the pressure ring seat 2 without applying additional force.

[0054] Through the cooperation of the lens fixing device 1, the pressure ring holder 2 and the rotating mechanism, a semi-automatic locking lens pressure ring process can be realized, which can replace the purely manual locking of the lens pressure ring to improve the work efficiency and the standardization of the work specifications, ensuring the consistency of the locked products and reducing the appearance caused by manual touch to improve the process yield. The cooperation of the clamping jaws 10, the clamping jaw extension mechanism and the clamping jaw retraction mechanism can realize the semi-automatic clamping and loosening of the clamping jaws 10. In this embodiment, the number of clamping jaws 10 is 3, which are radially distributed along the circumference of the center of the lens placement position and evenly arranged along the circumference; in other embodiments, the number of clamping jaws 10 can be adjusted as needed, and can be 2, 4 or more.

[0055] According to one embodiment of the present application, the clamping claw retracting mechanism includes a slider 8 and a first compression spring 6; the shell forms at least two slide grooves, and the slide grooves are radially distributed along the circumference of the center of the lens placement position; the slider 8 can be slidably arranged in the slide groove along the slide groove, and the first compression spring 6 is pressed between the first end of the slider 8 and the outer end of the slide groove; the slider 8 includes a slider body and a protrusion, and the protrusion is formed at one end of the slider body adjacent to the center of the lens placement position; the inner end of the slide groove forms a first opening and limits the slider body; the protrusion can extend from the first opening; the slider 8 and the clamping claw 10 are detachably fixedly connected one by one; the clamping claw retraction mechanism contacts the protrusion in a transmission manner.

[0056] In this embodiment, the number of chutes corresponds to three clamping jaws 10. In other embodiments, the number of clamping jaws 10 can be adjusted as needed to two, four, or a plurality of other numbers. The slider 8 and the clamping jaws 10 are fixed together by two bolts. In other embodiments, other existing detachable fixing methods can also be adopted.

[0057] According to one embodiment of the present application, the clamp retraction mechanism includes a cam 7, a second compression spring 15, a limiting column 12 and a button 9; the cam 7 is pivotally connected to the upper surface 11 of the shell and its center position corresponds to the center of the lens placement position; the cam 7 includes a cam body and at least two blades, the blades are distributed along the circumference of the cam body and the ends of the blades contact the protrusions of the slider 8; the second compression spring 15 is pressed and installed between the first side of the blade and the shell; the upper surface 11 of the shell forms a button mounting groove, and the button 9 can be slidably arranged in the button mounting groove along the button mounting groove; the outer end of the button mounting groove forms a second opening, and the outer end of the button 9 can extend from the second opening, and the mounting groove limits the button 9; the inner end of the button mounting groove forms a third opening, and the inner end of the button 9 extends from the third opening and contacts the second side of one of the blades; the limiting column 12 is connected to the upper surface 11 of the shell and limits the blade.

[0058] In this embodiment, the cam is shaped like a windmill and has three blades. In other embodiments, the blades of the cam 7 can also be set to 2, 4 or other numbers corresponding to the number of clamping jaws 10.

[0059] Semi-automatic clamping and releasing of the clamping jaw 10 is achieved through the cooperation of the first compression spring 6 , the second compression spring 15 , the cam 7 , the slide block 8 , the button 9 and the clamping jaw 10 .

[0060] In this embodiment, a limiting column 12 is provided on the upper surface 11 of the shell near the blade root of the cam 7. Under the joint restriction of the limiting column 12 and the limiting structure of the button 9, the cam 7 is always in contact with one end of the button 9, and the protrusion of the slider 8 is always in contact with the cam 7.

[0061] According to one embodiment of the present application, the two sides of the middle part of the button 9 protrude outward to form a limiting portion, which is a cross key structure with one long and one short. The second opening of the button mounting groove limits the limiting portion; the protruding limiting portion of the button 9 is used to limit the outward movement stroke of the button 9 to prevent the button 9 from being bounced off.

[0062] According to one embodiment of the present application, the rotating mechanism includes a rotating shaft 5 and a support frame 3; the support frame 3 includes a base 301, a support arm 303 and a support column 302; the support arm 303 is fixed to the top of the base 301 through the support column 302; the top of the lens fixing device 1 is connected to the rotating shaft 5; the rotating shaft 5 is rotatably and liftably vertically passed through the support arm 303; the pressure ring seat 2 is fixed on the base 301.

[0063] According to one embodiment of the present application, a manual knob 4 is provided on the top of the rotating shaft 5; the manual knob 4 is used to rotate the lens fixing device 1, and the operation standardization and product consistency can be guaranteed by specifying the number of rotations of the manual knob 4.

[0064] In this embodiment, the lower end of the rotating shaft 5 is fixed to the lens fixing device 1 by a top screw, and the lens fixing device 1 and the lens 13 are driven to rotate together by rotating the manual knob 4 .

[0065] According to one embodiment of the present application, the inner end of the clamping jaw 10 is arc-shaped, and the outer diameter of the arc is determined by the product of the lens 13. Since the slider 8 and the clamping jaw 10 are detachably fixedly connected, the clamping jaws 10 of different calibers can be quickly replaced to meet the locking requirements of lenses 13 of different sizes and shapes with the pressure ring, thereby completing the rapid switching of machine models.

[0066] According to one embodiment of the present application, the pressure ring seat 2 includes a hole, and the shape of the hole includes square, circular or polygonal to meet various needs. In this embodiment, the pressure ring seat 2 is fixed to the base 301 by a positioning pin or bolt.

[0067] According to one embodiment of the present application, the protrusions of the blade end and the slider 8 are both arc-shaped, so as to better realize the opening and closing of the clamping jaws 10.

[0068] According to one embodiment of the present application, the clamping force can be controlled by the size and size of the first compression spring 6. In this embodiment, the clamping force ranges from 2 to 15N, and the outer diameter D of the first compression spring 6 is 3 to 10mm; the wire diameter d of the first compression spring 6 is 0.2 to 1.2mm, which is used to control the clamping force of the clamping claw 10 to avoid improper selection that causes the lens 13 to be not clamped tightly or to be damaged.

[0069] To lock the lens pressure ring, the button 9 is pressed, which rotates the corresponding cam 7 to a certain angle. Simultaneously, the blades of the cam 7 push the slider 8 outward, causing the jaws 10 to automatically open as the slider 8 moves, and the first and second compression springs 6, 15 at each location are compressed. The lens 13 is placed in the lens placement position between the jaws 10. After the lens 13 is placed and the button 9 is released, the second compression springs 15 at each location will spring open. The cam 7 rotates in the opposite direction under the action of the second compression springs 15, and the first compression spring 6 pushes the slider 8 inward. The jaws 10 close with the movement of the slider 8 to clamp the lens 13. The pressure ring 14 is then placed on the pressure ring seat 2, and the lens fixture 1 is lowered so that the lens 13 contacts the pressure ring 14. The manual knob 4 is then rotated to lock the lens 13 and the pressure ring 14. After locking, the lens fixture 1 is lifted and the button 9 is pressed to remove the lens 13 with the pressure ring 14 attached.

[0070] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, improvements, equivalent replacements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A semi-automatic locking device for lens assembly, characterized in that: include: Lens fixing device; The lens fixing device includes a housing, at least two clamping jaws, a clamping jaw retracting mechanism, and a clamping jaw retracting mechanism; the clamping jaws are radially distributed along the circumference of the lens placement center on the lower surface of the housing and are connected to the lower surface of the housing via the clamping jaw retracting mechanism; the clamping jaw retracting mechanism pushes the corresponding clamping jaws toward the center of the lens placement center; the clamping jaw retracting mechanism is connected to the upper surface of the housing and contacts the clamping jaw retracting mechanism through transmission; A pressure ring seat, the pressure ring seat is fixed directly below the lens fixing device; The lens fixing device is rotatably and liftably arranged just above the pressure ring seat through the rotating mechanism.

2. The semi-automatic pressure ring locking device for lens assembly according to claim 1, characterized in that: The clamping claw retracting mechanism includes a slider and a first compression spring; the shell forms at least two slide grooves, and the slide grooves are radially distributed along the circumference of the center of the lens placement position; the slider can be slidably arranged in the slide groove along the slide groove, and the first compression spring is pressed between the first end of the slider and the outer end of the slide groove; the slider includes a slider body and a protrusion, and the protrusion is formed at one end of the slider body adjacent to the center of the lens placement position; the inner end of the slide groove forms a first opening and limits the slider body; the protrusion can extend from the first opening; the slider and the clamping claw are detachably fixedly connected in a one-to-one correspondence; the clamping claw retraction mechanism contacts the protrusion in a transmission manner.

3. The semi-automatic pressure ring locking device for lens assembly according to claim 2, characterized in that: The clamping claw retraction mechanism includes a cam, a second compression spring, a limiting column and a button; the cam is pivotally connected to the upper surface of the shell and its center position corresponds to the center of the lens placement position; the cam includes a cam body and at least two blades, the blades are distributed along the circumference of the cam body and the ends of the blades contact the protrusions of the slider; the second compression spring is compressed and installed between the first side of the blade and the shell; a button mounting groove is formed on the upper surface of the shell, and the button can be slidably arranged in the button mounting groove along the button mounting groove; a second opening is formed at the outer end of the button mounting groove, and the outer end of the button can extend from the second opening, and the mounting groove limits the button; a third opening is formed at the inner end of the button mounting groove, and the inner end of the button extends from the third opening and contacts the second side of one of the blades; the limiting column is connected to the upper surface of the shell and limits the blade.

4. The semi-automatic pressure ring locking device for lens assembly according to claim 3, characterized in that: Both sides of the middle portion of the button protrude outward to form a limiting portion, and the second opening of the button mounting groove limits the limiting portion.

5. The semi-automatic pressure ring locking device for lens assembly according to claim 1, characterized in that: The rotating mechanism includes a rotating shaft and a support frame; the support frame includes a base, a support arm and a support column; the support arm is fixed to the top of the base through the support column; the top of the lens fixing device is connected to the rotating shaft; the rotating shaft is rotatable and can be raised and lowered vertically through the support arm; the pressure ring seat is fixed on the base.

6. The semi-automatic pressure ring locking device for lens assembly according to claim 5, characterized in that: A manual knob is provided on the top of the rotating shaft.

7. The semi-automatic pressure ring locking device for lens assembly according to claim 1, characterized in that: The inner end of the clamping jaw is arc-shaped.

8. The semi-automatic pressing ring locking device for lens assembly according to claim 1, characterized in that: The pressure ring seat includes a hole, and the shape of the hole includes square, circle or polygon.

9. The semi-automatic pressure ring locking device for lens assembly according to claim 3, characterized in that: The protrusions of the blade end and the slider are both arc-shaped.

10. The semi-automatic pressing ring locking device for lens assembly according to claim 3, characterized in that: The outer diameter D of the first compression spring is 3-10 mm; the wire diameter d of the first compression spring is 0.2-1.2 mm.

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