Lens pressing ring locking jig

Abstract

The utility model belongs to the technical field of lens assembly, and discloses a lens clamping ring locking jig. The lens clamping ring locking jig comprises a torsion meter, a locking cylinder and an adjusting ring. Wherein one end of the locking cylinder is used for being connected with a torsion meter, a plurality of elastic hoop plates which are arranged at intervals are arranged at the other end of the locking cylinder in the circumferential direction of the locking cylinder, a fixing hole used for fixing a pressing ring is defined by the elastic hoop plates, and external threads are arranged on the outer circumferential wall of the locking cylinder; the locking cylinder is sleeved with the adjusting ring, the inner wall of the adjusting ring is provided with an internal thread in threaded fit with the external thread, and the adjusting ring can be made to be close to or away from the elastic hoop plate in the axial direction of the locking cylinder by screwing the adjusting ring so as to adjust the size of the fixing hole. According to the lens pressing ring locking jig, the pressing ring can be locked to the lens frame according to the set torsion, in the locking process of the pressing ring, the pressing ring can be reliably fixed, the risk of scratching a lens is low, and the lens pressing ring locking jig can be suitable for pressing rings with different calibers and is high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of lens assembly, in particular to a lens pressure ring locking fixture. Background Art

[0002] The first lens element of the lens is usually fixed with a pressure ring to prevent it from shaking in the frame. In order to ensure the reliability of the connection between the pressure ring and the frame, the pressure ring is usually fixed to the frame by threading.

[0003] There are two main existing methods for assembling the pressing ring. One is to tighten it manually using tweezers or other simple jigs. This method can only simply tighten the pressing ring, and it is difficult to ensure that the torque of the pressing ring reaches the ideal state. The lens is prone to loosening, and it is difficult for the human hand to control the balance and stability, and the assembly efficiency is low. The other is to use a special jig with a torque screw to lock the pressing ring. Although this special jig can ensure the locking torque of the pressing ring, it can only be used for a single-caliber pressing ring, and its use is relatively limited. In addition, during the locking process, the contact area between the special jig and the pressing ring is small, and it is easy to slip and scratch the lens.

[0004] Therefore, it is urgent to propose a lens pressing ring locking fixture to solve the above technical problems. Utility Model Content

[0005] The utility model provides a lens pressure ring locking fixture, which can lock the pressure ring to the lens frame according to a set torque. During the locking process of the pressure ring, the pressure ring can be reliably fixed, the risk of scratching the lens is low, and the tool is applicable to pressure rings of different calibers, with high universality.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The lens pressing ring locking fixture includes:

[0008] Torque meter;

[0009] A locking cylinder, one end of which is used to be connected to the torque meter, and along the circumference of the locking cylinder, a plurality of elastic clamping plates are arranged at intervals at the other end of the locking cylinder, and the plurality of elastic clamping plates surround a fixing hole for fixing the pressure ring, and an external thread is provided on the outer peripheral wall of the locking cylinder;

[0010] An adjusting ring is sleeved outside the locking cylinder, and an internal thread matching the external thread is provided on the inner wall of the adjusting ring. Screwing the adjusting ring can make the adjusting ring approach or move away from the elastic clamping plate along the axial direction of the locking cylinder to adjust the size of the fixing hole.

[0011] Optionally, a retaining ring is provided on the outer fixed sleeve of the locking cylinder, and one end of the adjusting ring away from the elastic clamping plate can abut against the retaining ring.

[0012] Optionally, the torque meter includes a handle and a joint provided at one end of the handle, the joint is connected to one end of the locking cylinder, and the axis of the handle is perpendicular to the axis of the locking cylinder.

[0013] Optionally, a mounting hole is provided at one end of the locking cylinder, and the connector is plugged into the mounting hole.

[0014] Optionally, the mounting hole is polygonal, and the shape of the joint matches the mounting hole.

[0015] Optionally, the lens pressure ring locking fixture further includes a lens bearing seat and a fixing component arranged on the lens bearing seat, and the fixing component is used to fix the lens frame on which the pressure ring is to be installed.

[0016] Optionally, the fixing assembly includes:

[0017] A forward and reverse threaded screw, rotatably connected to the lens support seat;

[0018] The two clamping nut blocks are both threadedly connected to the forward and reverse threaded screws. Rotating the forward and reverse threaded screws can make the two clamping nut blocks move closer to or farther from each other, so as to clamp or loosen the lens frame.

[0019] Optionally, a mounting groove is provided on the lens support seat, and mounting blocks are provided at both ends of the mounting groove on the lens support seat, the forward and reverse threaded screws are installed in the mounting groove, and the ends of the forward and reverse threaded screws are rotatably passed through the corresponding mounting blocks.

[0020] Optionally, a supporting block is provided in the middle of the mounting groove, the middle of the forward and reverse threaded screws passes through the supporting block, the supporting block is used to support the frame, and the two clamping nut blocks are respectively located on both sides of the supporting block.

[0021] Optionally, the fixing assembly further comprises a rotation driving member, wherein the rotation driving member is connected to the forward and reverse threaded screws and is used for driving the forward and reverse threaded screws to rotate.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a lens pressure ring locking fixture, comprising a torque meter, a locking tube and an adjusting ring. Before assembling the pressure ring to the frame, first screw the adjusting ring to keep it away from the elastic clamp plate, then insert the pressure ring into the fixing hole, and then screw the adjusting ring to make it close to the elastic clamp plate, so that the locking tube can reliably fix the pressure ring, and then rotate the torque meter according to the set torque, and drive the locking tube to rotate through the torque meter, and finally fasten the pressure ring to the frame according to the set torque. The lens pressure ring locking fixture can lock the pressure ring to the frame according to the set torque. Compared with manual assembly of the pressure ring, the locking reliability of the pressure ring is higher, the risk of lens loosening is reduced, and the operation is convenient, which improves the locking efficiency of the pressure ring.

[0024] During the locking process of the pressure ring, the pressure ring can always be reliably fixed in the fixing hole through the cooperation of the elastic clamp plate and the adjusting ring, reducing the risk of the locking tube detaching from the pressure ring, and further reducing the risk of the locking tube scratching the lens.

[0025] The lens pressure ring locking fixture forms a fixing hole through a plurality of elastic clamping plates arranged at intervals. The size of the fixing hole can be changed through the elastic deformation ability of the elastic clamping plate to adapt to pressure rings of different calibers, and has high universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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 of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 This is an exploded view of the lens pressing ring locking fixture provided in the first embodiment of the utility model;

[0028] Figure 2 yes Figure 1 The schematic diagram of the torque meter is hidden;

[0029] Figure 3 It is a cross-sectional view of an assembly diagram of a locking cylinder, an adjustment ring and a lens provided in the first embodiment of the utility model;

[0030] Figure 4 This is a structural schematic diagram of a lens pressing ring locking fixture provided in the second embodiment of the present utility model;

[0031] Figure 5 It is a cross-sectional view of the lens pressing ring locking fixture provided in the second embodiment of the utility model;

[0032] Figure 6 It is an assembly diagram of a lens support seat and a fixing component provided in the second embodiment of the utility model.

[0033] In the figure:

[0034] 10. Pressing ring; 11. Mirror frame;

[0035] 100, torque meter; 110, handle; 120, connector;

[0036] 200, locking cylinder; 210, elastic clamping plate; 220, external thread; 230, mounting hole;

[0037] 300, adjusting ring; 310, internal thread;

[0038] 400, retaining ring;

[0039] 500, lens support seat; 510, mounting slot; 520, mounting block; 530, support block;

[0040] 600, fixing assembly; 610, positive and negative threaded screws; 620, clamping nut block; 630, rotating drive member. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0045] Embodiment 1

[0046] The present embodiment provides a lens pressure ring locking fixture, which can lock the pressure ring to the lens frame according to the set torque. During the locking process of the pressure ring, the pressure ring can be reliably fixed, the risk of scratching the lens is low, and it can be applied to pressure rings of different calibers, with high universality.

[0047] Specifically, Figure 1-Figure 3 As shown, the lens pressing ring locking fixture includes a torque meter 100, a locking cylinder 200 and an adjusting ring 300. Among them, one end of the locking cylinder 200 is used to connect with the torque meter 100, and along the circumference of the locking cylinder 200, a plurality of elastic clamping plates 210 are arranged at intervals at the other end of the locking cylinder 200. The plurality of elastic clamping plates 210 surround a fixing hole for fixing the pressing ring 10. The elastic clamping plates 210 adjust the aperture of the fixing hole through elastic deformation ability to adapt to pressing rings 10 of different calibers. An external thread 220 is provided on the outer peripheral wall of the locking cylinder 200, and the adjusting ring 300 is sleeved on the outside of the locking cylinder 200. An internal thread 310 threadably matched with the external thread 220 is provided on the inner wall of the adjusting ring 300. Screwing the adjusting ring 300 can make the adjusting ring 300 approach or move away from the elastic clamping plate 210 along the axial direction of the locking cylinder 200 to adjust the size of the fixing hole.

[0048] The process of assembling the lens pressing ring 10 on the lens frame 11 using the lens pressing ring locking fixture is as follows:

[0049] Before assembling the pressing ring 10 to the lens frame 11, firstly screw the adjusting ring 300 to keep it away from the elastic clamping plate 210 to ensure that the aperture of the fixing hole is large, and then insert the pressing ring 10 into the fixing hole;

[0050] Then, the adjusting ring 300 is screwed to make it close to the elastic hoop plate 210, so that the multiple elastic hoop plates 210 are deformed and pressed against the pressing ring 10 with a certain pressure, thereby locking the pressing ring 10;

[0051] Then, the torque meter 100 is rotated according to the set torque, and the locking tube 200 is driven to rotate by the torque meter 100. The rotation of the locking tube 200 drives the pressing ring 10 to rotate, and finally the pressing ring 10 is fastened to the frame 11 according to the set torque.

[0052] The lens pressing ring locking fixture can lock the pressing ring 10 to the lens frame 11 according to the set torque. Compared with the manual assembly of the pressing ring 10, the locking reliability of the pressing ring 10 is higher, the risk of the lens loosening is reduced, and the operation is convenient, which improves the locking efficiency of the pressing ring 10. During the locking process of the pressing ring 10, the pressing ring 10 can always be reliably fixed in the fixing hole through the cooperation of the elastic hoop plate 210 and the adjustment ring 300, which reduces the risk of the locking tube 200 being separated from the pressing ring 10, thereby reducing the risk of the locking tube 200 scratching the lens.

[0053] The lens clamping ring locking fixture forms a fixing hole through a plurality of elastic clamping plates 210 arranged at intervals. The size of the fixing hole can be changed through the elastic deformation ability of the elastic clamping plate 210 to adapt to clamping rings 10 of different calibers, and has high universality.

[0054] Optionally, the material of the locking cylinder 200 may be plastic, and a plurality of cuts are provided along the circumferential direction at one end of the locking cylinder 200 , with an elastic clamp plate 210 formed between two adjacent cuts.

[0055] It is worth noting that the spacing distance between the elastic clamp plates 210 is related to the range of variation of the diameter of the fixing hole. Therefore, a suitable spacing distance between the elastic clamp plates 210 can be set according to actual needs.

[0056] Optionally, continue to see Figure 1 In this embodiment, the torque meter 100 includes a handle 110 and a joint 120 disposed at one end of the handle 110, the joint 120 is connected to one end of the locking cylinder 200, and the axis of the handle 110 is perpendicular to the axis of the locking cylinder 200. During the assembly of the pressing ring 10, the pressing ring 10 can be driven to rotate through the locking cylinder 200 by rotating the handle 110. By setting the axis of the handle 110 to be perpendicular to the axis of the locking cylinder 200, the operator can save more effort.

[0057] Further, see Figure 1 and Figure 2 One end of the locking cylinder 200 is provided with a mounting hole 230, and the connector 120 is plugged into the mounting hole 230. With such a configuration, the structure of the locking cylinder 200 is relatively simple, easy to process, and the installation and disassembly between the locking cylinder 200 and the torque meter 100 is also relatively simple.

[0058] Preferably, the mounting hole 230 is polygonal, and the shape of the joint 120 matches the mounting hole 230. With this arrangement, the risk of the joint 120 slipping is low, and the reliability of the synchronous rotation of the torque meter 100 and the locking cylinder 200 is improved.

[0059] In this embodiment, the mounting hole 230 is square, and the connector 120 is a square column. In other embodiments, the mounting hole 230 may also be a pentagon, a hexagon, etc., and correspondingly, the connector 120 may be a pentagonal column, a hexagonal column, etc., which can be set according to actual needs, and this application does not make specific limitations.

[0060] Further, see Figure 1-Figure 3 The outer fixed sleeve of the locking cylinder 200 is provided with a retaining ring 400, and the end of the adjusting ring 300 away from the elastic clamp plate 210 can abut against the retaining ring 400. By providing the retaining ring 400, when the adjusting ring 300 abuts against the retaining ring 400, the adjusting ring 300 can no longer be further away from the elastic clamp plate 210 by screwing the adjusting ring 300, that is, the retaining ring 400 can limit the movement stroke of the adjusting ring 300, avoiding the adjusting ring 300 from falling off from the locking cylinder 200 due to the excessive screwing of the adjusting ring 300, thereby improving the installation reliability of the adjusting ring 300.

[0061] Embodiment 2

[0062] This embodiment provides a lens pressing ring locking fixture, which is substantially the same in structure as the first embodiment, and is only improved on the basis of the first embodiment. Therefore, only the differences between the two are described here, and the same structures of this embodiment and the first embodiment are not repeated here.

[0063] Specifically, Figure 4-Figure 6 As shown, the lens pressing ring locking fixture further includes a lens bearing seat 500 and a fixing assembly 600. The fixing assembly 600 is disposed on the lens bearing seat 500 and is used to fix the frame 11 to which the pressing ring 10 is to be installed. The frame 11 is fixed by the fixing assembly 600 to assemble the frame 11 and the pressing ring 10. Compared with hand-held frame 11, the fixing effect of the frame 11 is better, and the rotation of the frame 11 can be avoided during the rotation of the pressing ring 10, so as to ensure that the pressing ring 10 can be assembled to the frame 11 according to the set torque.

[0064] Further, see Figure 4-Figure 6 In this embodiment, the fixing assembly 600 includes a positive and negative threaded screw 610 and two clamping nut blocks 620. The positive and negative threaded screw 610 is rotatably connected to the lens support seat 500. The two clamping nut blocks 620 are both threadedly connected to the positive and negative threaded screw 610. Rotating the positive and negative threaded screw 610 can make the two clamping nut blocks 620 move closer to or farther from each other to clamp or loosen the lens frame 11.

[0065] It can be understood that the two clamping nut blocks 620 are respectively connected to the two ends of the forward and reverse threaded screw 610 with opposite thread rotation directions, so that when the forward and reverse threaded screw 610 is rotated, the two clamping nut blocks 620 can move closer to or farther away from each other.

[0066] The fixing assembly 600 has a simple structure, has a better effect of clamping and fixing the lens frame 11, is easy to control, and can be applied to lens frames 11 of different specifications, thus having high universality.

[0067] Optionally, a mounting groove 510 is provided on the lens support seat 500, and mounting blocks 520 are provided at both ends of the mounting groove 510 on the lens support seat 500, and the forward and reverse threaded screws 610 are installed in the mounting groove 510, and the ends of the forward and reverse threaded screws 610 are rotatably passed through the corresponding mounting blocks 520.

[0068] Furthermore, a bearing block 530 is provided in the middle of the installation groove 510, and the middle of the forward and reverse threaded screw 610 is passed through the bearing block 530. The bearing block 530 is used to support the mirror frame 11, and the two clamping nut blocks 620 are respectively located on both sides of the bearing block 530. That is, the bearing block 530 divides the installation groove 510 into two sub-grooves, and the two sections of the forward and reverse threaded screw 610 with opposite rotation directions are respectively placed in the two sub-grooves, and the two clamping nut blocks 620 are also respectively placed in the two sub-grooves. By providing the bearing block 530, the mirror frame 11 can be supported at the bottom, thereby improving the fixing effect of the mirror frame 11.

[0069] Preferably, continue to see Figure 4-Figure 6 The fixing assembly 600 further includes a rotating driving member 630, which is connected to the forward and reverse threaded screw 610 and is used to drive the forward and reverse threaded screw 610 to rotate. By providing the rotating driving member 630, the two clamping nut blocks 620 can be automatically controlled to clamp and loosen the frame 11, which can not only reduce the labor intensity of the workers, but also improve the fixing efficiency of the frame 11, thereby improving the assembly efficiency of the frame 11 and the pressing ring 10.

[0070] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. The lens pressing ring locking fixture is characterized by: include: Torque meter (100); A locking cylinder (200), one end of which is used to be connected to the torque meter (100), and a plurality of elastic clamping plates (210) are arranged at intervals at the other end of the locking cylinder (200) along the circumference of the locking cylinder (200), and the plurality of elastic clamping plates (210) surround a fixing hole for fixing the pressure ring (10), and an external thread (220) is provided on the outer peripheral wall of the locking cylinder (200); An adjusting ring (300) is sleeved outside the locking tube (200), and an internal thread (310) threadably matched with the external thread (220) is provided on the inner wall of the adjusting ring (300). By screwing the adjusting ring (300), the adjusting ring (300) can be moved closer to or farther away from the elastic clamping plate (210) along the axial direction of the locking tube (200) to adjust the size of the fixing hole.

2. The lens pressing ring locking fixture according to claim 1, characterized in that: The outer fixed sleeve of the locking cylinder (200) is provided with a retaining ring (400), and one end of the adjusting ring (300) away from the elastic clamping plate (210) can abut against the retaining ring (400).

3. The lens pressing ring locking fixture according to claim 1, characterized in that: The torque meter (100) comprises a handle (110) and a joint (120) arranged at one end of the handle (110), the joint (120) is connected to one end of the locking cylinder (200), and the axis of the handle (110) is perpendicular to the axis of the locking cylinder (200).

4. The lens pressing ring locking fixture according to claim 3, characterized in that: One end of the locking cylinder (200) is provided with a mounting hole (230), and the connector (120) is plugged into the mounting hole (230).

5. The lens pressing ring locking fixture according to claim 4, characterized in that: The mounting hole (230) is polygonal in shape, and the shape of the joint (120) matches the mounting hole (230).

6. The lens pressing ring locking fixture according to any one of claims 1 to 5, characterized in that: The lens pressing ring locking fixture further comprises a lens bearing seat (500) and a fixing assembly (600) arranged on the lens bearing seat (500), wherein the fixing assembly (600) is used to fix the lens frame (11) on which the pressing ring (10) is to be installed.

7. The lens pressing ring locking fixture according to claim 6, characterized in that: The fixing assembly (600) comprises: A positive and negative threaded screw (610) rotatably connected to the lens support seat (500); The two clamping nut blocks (620) are both threadedly connected to the forward and reverse threaded screws (610). Rotating the forward and reverse threaded screws (610) can move the two clamping nut blocks (620) closer to or farther from each other, so as to clamp or loosen the mirror frame (11).

8. The lens pressing ring locking fixture according to claim 7, characterized in that: The lens support seat (500) is provided with a mounting groove (510), and mounting blocks (520) are provided at both ends of the mounting groove (510) on the lens support seat (500), and the forward and reverse threaded screws (610) are installed in the mounting groove (510), and the ends of the forward and reverse threaded screws (610) are rotatably inserted into the corresponding mounting blocks (520).

9. The lens pressing ring locking fixture according to claim 8, characterized in that: A supporting block (530) is provided in the middle of the mounting groove (510), and the middle of the forward and reverse threaded screw (610) is passed through the supporting block (530). The supporting block (530) is used to support the mirror frame (11), and the two clamping nut blocks (620) are respectively located on both sides of the supporting block (530).

10. The lens pressing ring locking fixture according to claim 7, characterized in that: The fixing assembly (600) further comprises a rotation driving member (630), wherein the rotation driving member (630) is connected to the forward and reverse threaded screw (610) and is used for driving the forward and reverse threaded screw (610) to rotate.

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