Lens clamping ring locking jig

Abstract

The utility model belongs to the technical field of optical lenses, and discloses a lens pressing ring locking jig, which is used for locking a lens pressing ring in a lens barrel to fix a lens, a first end face of the lens pressing ring is provided with a plurality of bayonets, the first end face of the lens pressing ring is connected with the side walls of the bayonets to form a right-angle area, and the bayonets are arranged in the right-angle area. The lens pressing ring locking jig comprises a locking head, the locking head is provided with clamping protrusions corresponding to the bayonets in a one-to-one mode, the clamping protrusions can be inserted into the bayonets, gaps are formed between the connecting areas of the clamping protrusions and the locking head and the right-angle areas, and the locking head can drive the lens pressing ring to rotate relative to the lens barrel through the clamping protrusions. According to the utility model, the connection part of the end surface of the lens pressing ring and the bayonet is effectively prevented from being pressed in the assembling process, so that the problem that the lens pressing ring is damaged by pressing and exposed is solved, rework is reduced, and the product yield is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical lens technology, and in particular to a lens retainer locking fixture. Background Technology

[0002] Optical lenses are crucial components in optoelectronic products, and their image quality directly affects the overall performance of the product. Currently, optical lens retainers are typically installed using a screw-in method for locking, thus assembling all optical parts. During the locking process, a locking fixture is generally used. Currently, the locking process is mostly manual, usually with a bayonet on the end face of the lens retainer and a locking protrusion on the fixture. The protrusion extends into the bayonet to rotate the lens retainer, thus assembling it. However, because the protrusion presses against the connection between the end face of the lens retainer and the bayonet, excessive torque can cause damage and exposed areas on the lens retainer, leading to product defects, rework, and reduced yield. Therefore, effectively avoiding pressure on the end face of the lens retainer and the bayonet connection during assembly, thus solving the problem of damage and exposed areas, reducing rework, and improving product yield is a problem that needs to be solved by those in the field. Utility Model Content

[0003] The purpose of this utility model is to provide a lens retainer locking fixture, which effectively avoids pressing the end face of the lens retainer and the connection of the bayonet during the assembly process, so as to solve the problem of pressure damage and exposure on the lens retainer, reduce rework, and improve product yield.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A lens retainer mounting fixture is used to secure a lens retainer within a lens barrel to fix the lens. The first end face of the lens retainer has several bayonets, and the first end face of the lens retainer is connected to the sidewall of the bayonets to form a right-angle region. The lens retainer mounting fixture includes:

[0006] The locking head has a locking protrusion that corresponds to the bayonet slot. The locking protrusion can be inserted into the bayonet slot, and there is a gap between the connection area of ​​the locking protrusion and the right-angle area. The locking head can drive the lens retaining ring to rotate relative to the lens barrel through the locking protrusion.

[0007] Optionally, the locking head includes a locking body that is inserted into the lens barrel and abuts against the first end face of the lens retainer, with the latching protrusion disposed on the locking body.

[0008] Optionally, the locking body is provided with a relief groove, and the card protrusion is disposed in the relief groove to divide the relief groove into two relief sub-grooves. When the card protrusion is inserted into the bayonet, there is a first gap between the bottom of the relief sub-groove and the first end face of the lens retaining ring located on both sides of the bayonet.

[0009] Alternatively, the length of the locking protrusion along the axial direction of the locking head is greater than the depth of the clearance groove.

[0010] Optionally, the latching protrusion includes a connecting portion and a latching portion, wherein the two ends of the connecting portion along the axial direction of the locking head are respectively connected to the latching portion and the clearance groove;

[0011] The latching part extends out from both sides of the locking head along the circumferential direction. When the latching part is inserted into the slot, there is a second gap between the connecting part and the two side walls of the slot. The second gap is connected to the corresponding first gap.

[0012] Alternatively, the connecting part and the snap-fit ​​part can form a T-shaped structure.

[0013] Optionally, the lens retainer locking fixture may also include:

[0014] A torque device is detachably connected to the side of the locking head away from the lens retaining ring, and is used to adjust the locking torque.

[0015] Optionally, the locking head further includes a connecting body disposed on the side of the locking body opposite to the latching protrusion, and the torque device is detachably connected to the connecting body.

[0016] Alternatively, the connecting body is configured as a hexagonal prism structure, and the torque device is provided with a groove with a hexagonal cross-section, in which the connecting body can be inserted and confined.

[0017] Optionally, the first end face of the lens retainer is provided with at least two bayonets, each bayonet being equally spaced along the circumference of the lens retainer.

[0018] The beneficial effects of this utility model are:

[0019] In this invention, the lens retaining ring is provided with a bayonet, and the locking head is provided with corresponding locking protrusions. When the locking protrusions are inserted into the bayonet, the connection area between the locking protrusions and the locking head will not contact the right-angle area formed by the first end face of the lens retaining ring and the side wall of the bayonet. There is a gap between the two areas to avoid sharp points in the right-angle area of ​​the lens retaining ring. This prevents friction between the locking head and the lens retaining ring during the rotation of the lens retaining ring relative to the lens barrel by the locking head through the locking protrusions. This solves the problem of pressure marks and exposed white areas on the lens retaining ring during assembly, reduces rework, and improves product yield. Attached Figure Description

[0020] Figure 1 This is a first isometric view of the lens retainer locking fixture being mounted on the lens retainer according to an embodiment of the present invention;

[0021] Figure 2 This is a second isometric schematic diagram of the lens retainer locking fixture being mounted on the lens retainer according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the lens retaining ring, lens barrel, and lens described in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the lens retainer locking fixture described in this embodiment of the utility model;

[0024] Figure 5 This is a top view schematic diagram of the lens retainer locking fixture being installed in the lens retainer according to an embodiment of the present invention;

[0025] Figure 6 yes Figure 5 sectional view along line AA;

[0026] Figure 7 yes Figure 5 Cross-sectional view along line BB;

[0027] Figure 8 yes Figure 6 A magnified view of a portion of point C.

[0028] In the picture:

[0029] 100 - Lens retainer ring; 200 - Lens barrel; 300 - Lens;

[0030] 101-Barrel opening; 102-First end face; 10-Locking body; 20-Connecting body; 11-Card protrusion; 111-Connecting part; 112-Card engaging part; 12-Allowing groove; 13-Second end face. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, 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 or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 utility model according to the specific circumstances.

[0033] In the description of this utility model, unless otherwise expressly 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.

[0034] The technical solution of this embodiment will be further described below with reference to the accompanying drawings and specific implementation methods.

[0035] like Figures 1-8As shown, this embodiment provides a lens retainer locking fixture for locking the lens retainer 100 into the lens barrel 200 to fix the lens 300 inside the lens barrel 200. Specifically, in this embodiment, the lens retainer 100 is provided with a bayonet 101, the end face of the lens retainer 100 with the bayonet 101 is the first end face 102, and the other end face of the lens retainer 100 abuts against the lens 300. The locking head is provided with a locking protrusion 11 corresponding to the bayonet 101. When the locking protrusion 11 is inserted into the bayonet 101, the connection area between the locking protrusion 11 and the locking head will not contact the right-angle area formed by the first end face 102 of the lens retaining ring 100 and the side wall of the bayonet 101. There is a gap between the two areas to avoid the sharp parts in the right-angle area of ​​the lens retaining ring 100. This prevents the locking head and the lens retaining ring 100 from being squeezed during the rotation of the locking head relative to the lens barrel 200 by the locking protrusion 11. This solves the problem of pressure marks and white exposure on the lens retaining ring 100 during the assembly process, reduces rework, and improves product yield.

[0036] The specific structure of the lens retainer locking fixture in this embodiment will be described below.

[0037] like Figures 1-3 As shown, in this embodiment, the lens retainer locking fixture is used to lock the lens retainer 100. The lens retainer locking fixture includes a locking head and a torque device. Further, the lens retainer 100 is locked inside the lens barrel 200, and the lens 300 can be fixed inside the lens barrel 200 by the lens retainer 100. Exemplarily, the lens retainer 100 is provided with external threads, and the lens barrel 200 is provided with internal threads. The lens retainer locking fixture can screw the lens retainer 100 into the lens barrel 200 and limit and fix the lens 300 inside the lens barrel 200. Specifically, the locking head can be inserted and confined in the lens barrel 200, and the torque device is detachably connected to the side of the locking head away from the lens retainer 100. It is used to adjust the locking torque, and can rotate freely when the set torque is exceeded to avoid excessive torque damaging the lens retainer 100.

[0038] like Figure 3 As shown, in this embodiment, the lens retaining ring 100 is provided with a plurality of bayonet slots 101, and a first end face 102 is provided on the side of the lens retaining ring 100 where the bayonet slots 101 are provided. Combined with... Figure 4As shown, optionally, the locking head is provided with a locking protrusion 11 corresponding to the bayonet 101. The locking protrusion 11 can be inserted into the bayonet 101, and there is a gap between the connection area of ​​the locking protrusion 11 and the locking head and the right-angle area formed by the connection between the first end face 102 of the lens retaining ring 100 and the side wall of the bayonet 101. The locking head can drive the lens retaining ring 100 to rotate relative to the lens barrel 200 through the locking protrusion 11. That is, the locking head is driven to rotate by the torque device, which can drive the lens retaining ring 100 to rotate. In this process, the right-angle area on the lens retaining ring 100 can be cleared to avoid the lens retaining ring 100 being damaged or exposed during installation.

[0039] Combination Figures 4-7 As shown, in this embodiment, the locking head includes a locking body 10 and a connecting body 20, and a latching protrusion 11 is disposed on the locking body 10. Specifically, in this embodiment, the locking body 10 can be inserted into and confined in the lens barrel 200, and abuts against the first end face 102 of the lens retaining ring 100. Further, the connecting body 20 is disposed on the side of the locking body 10 opposite to the latching protrusion 11, and the torque device is detachably connected to the connecting body 20 to ensure the rotation of the locking head.

[0040] Optionally, the connecting body 20 is configured as a hexagonal prism structure, and the torque device has a hexagonal groove. The connecting body 20 can be inserted into and confined within the groove to ensure stable installation of the torque device and the locking head. For example, in this embodiment, the torque device is a torque screwdriver, which allows for setting the specific torque value and controlling the locking torque. In other embodiments, the grooves on the connecting body 20 and the torque device are not limited to the above shape and can be other shapes, as long as the torque device can drive the connecting body 20 to rotate.

[0041] Furthermore, the locking body 10 is provided with a clearance groove 12, and the locking protrusion 11 is disposed in the clearance groove 12 to divide the clearance groove 12 into two clearance sub-grooves. When the locking protrusion 11 is inserted into the bayonet 101, there is a first gap between the bottom of the clearance sub-groove and the first end face 102 of the lens retaining ring 100 located on both sides of the bayonet 101, so as to achieve clearance treatment on the outer side of the right angle area between the locking protrusion 11 and the lens retaining ring 100. Specifically, in this embodiment, the length of the locking protrusion 11 along the axial direction of the locking head is greater than the depth of the clearance groove 12, so as to ensure that the locking protrusion 11 can protrude out of the clearance groove 12 and be smoothly inserted into the bayonet 101.

[0042] Optionally, the end face of the locking body 10 with the latching protrusion 11 is the second end face 13, and the relief groove 12 is provided on the second end face 13. When the latching protrusion 11 is inserted into the bayonet 101, the second end face 13 abuts against the first end face 102 to increase the contact area between the locking head and the lens retaining ring 100, improve the connection strength between the two, and prevent the latching protrusion 11 from breaking during rotation.

[0043] like Figure 8 As shown, in this embodiment, the latching protrusion 11 includes a connecting portion 111 and a latching portion 112, and the two ends of the connecting portion 111 along the axial direction of the locking head are respectively connected to the latching portion 112 and the clearance groove 12. Specifically, the latching portion 112 extends from both sides of the connecting portion 111 along the circumferential direction of the locking head. When the latching portion 112 is inserted into the bayonet 101, it can abut against the bottom surface and side wall of the bayonet 101. At this time, there is a second gap between the connecting portion 111 and the two side walls of the bayonet 101. The second gap is connected to the corresponding first gap, which can ensure that the latching protrusion 11 will not contact the right-angle area of ​​the lens retaining ring 100, thereby achieving clearance treatment of the sharp parts in the right-angle area of ​​the lens retaining ring 100 and avoiding the problem of white exposure during assembly and rotation.

[0044] For example, in this embodiment, the connecting part 111 and the snap-fit ​​part 112 form a T-shaped structure, and the width of the connecting part 111 along the circumferential direction of the locking head is smaller than the width of the snap-fit ​​part 112 along the circumferential direction of the locking head. The width of the snap-fit ​​part 112 along the circumferential direction of the locking head is adapted to the width of the bayonet 101 along the circumferential direction of the lens retaining ring 100.

[0045] For example, in this embodiment, the lens retaining ring 100 is provided with at least two bayonet slots 101, and each bayonet slot 101 is equally spaced along the circumference of the lens retaining ring 100. Correspondingly, the locking body 10 is provided with at least two locking protrusions 11, and the two locking protrusions 11 are equally spaced along the circumference of the locking body 10. Further, the locking body 10 is provided with at least two clearance grooves 12, and each clearance groove 12 is provided with one locking protrusion 11. Thus, with the two locking protrusions 11 inserted into their corresponding bayonet slots 101, and with the clearance grooves 12 clearing the right-angled area of ​​the lens retaining ring 100, the locking protrusions 11 can only contact the bottom surface and inner wall of the bayonet slots 101 of the lens retaining ring 100, effectively clearing the sharp right-angled edges of the right-angled area, and effectively preventing the sharp right-angled edges of the lens retaining ring 100 from being damaged and exposed under high torque.

[0046] In this embodiment, the lens retaining ring 100 is provided with two bayonet slots 101, which are equally spaced along the circumference of the first end face 102. The second end face 13 of the locking body 10 is provided with two locking protrusions 11 equally spaced along its circumference. By having the two locking protrusions 11 respectively engage with the two bayonet slots 101, the connection strength between the lens retaining ring 100 and the locking head is ensured while simplifying the structure. In other embodiments, the number of bayonet slots 101 and locking protrusions 11 is not limited to two; it can also be three, four, or more, which is not limited here.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lens retaining ring locking jig for locking a lens retaining ring (100) in a lens barrel (200) to fix a lens (300), characterized by, The first end face (102) of the lens retainer (100) is provided with a plurality of bayonet slots (101). The first end face (102) of the lens retainer (100) is connected to the side wall of the bayonet slot (101) to form a right-angle region. The lens retainer locking fixture includes: The locking head is provided with locking protrusions (11) that correspond one-to-one with the bayonet (101). The locking protrusions (11) can be inserted into the bayonet (101), and there is a gap between the connection area of ​​the locking protrusions (11) and the right-angle area. The locking head can drive the lens retaining ring (100) to rotate relative to the lens barrel (200) through the locking protrusions (11).

2. The lens pressing ring locking tool according to claim 1, wherein The locking head includes a locking body (10), which is inserted into the lens barrel (200) and abuts against the first end face (102) of the lens retainer (100). The locking protrusion (11) is disposed on the locking body (10).

3. The lens pressing ring locking tool according to claim 2, wherein The locking body (10) is provided with a clearance groove (12), and the locking protrusion (11) is provided in the clearance groove (12) to divide the clearance groove (12) into two clearance sub-grooves. When the locking protrusion (11) is inserted into the bayonet (101), there is a first gap between the bottom of the clearance sub-groove and the first end face (102) of the lens retaining ring (100) located on both sides of the bayonet (101).

4. The lens pressing ring locking tool according to claim 3, wherein The length of the cam (11) along the axial direction of the locking head is greater than the depth of the clearance groove (12).

5. The lens pressing ring locking tool according to claim 3, wherein The latching protrusion (11) includes a connecting part (111) and a latching part (112). The two ends of the connecting part (111) along the axial direction of the locking head are respectively connected to the latching part (112) and the relief groove (12). The latching part (112) extends out of the connecting part (111) on both sides of the circumferential direction of the locking head. When the latching part (112) is inserted into the bayonet (101), there is a second gap between the connecting part (111) and the two side walls of the bayonet (101). The second gap is connected to the corresponding first gap.

6. The lens pressing ring locking tool according to claim 5, wherein The connecting part (111) and the snap-fit ​​part (112) form a T-shaped structure.

7. The lens pressing ring locking tool according to any one of claims 2-6, wherein The lens retainer locking fixture also includes: A torque device is detachably connected to the side of the locking head away from the lens retaining ring (100) for adjusting the locking torque.

8. The lens pressing ring locking tool according to claim 7, wherein The locking head also includes a connecting body (20), which is disposed on the side of the locking body (10) away from the locking protrusion (11), and the torque device is detachably connected to the connecting body (20).

9. The lens pressing ring locking tool according to claim 8, wherein The connecting body (20) is configured as a hexagonal prism structure, and the torque device is provided with a groove with a hexagonal cross section. The connecting body (20) can be inserted into and confined in the groove.

10. The lens pressing ring locking tool according to any one of claims 1-6, wherein The first end surface (102) of the lens pressing ring (100) is provided with at least two said bayonets (101), each of which is arranged equidistantly along the circumference of the lens pressing ring (100).

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