Lens mounting tool

Abstract

The utility model provides a lens mounting tool, relates to the technical field of optical component mounting, and is designed for solving the problem that a conventional lens mounting mode is easy to cause deviation in the mounting direction, so that the lens needs to be repeatedly taken out and remounted. The lens installation tool is used for installing a lens on a lens barrel, the lens installation tool comprises a tool body, the tool body is provided with a bearing part and a protruding part, the bearing part is opposite to the protruding part, the outer diameter of the bearing part and the outer diameter of the protruding part are both smaller than the inner diameter of the lens barrel, and the bearing part can bear the lens to be installed; and the lug boss can be inserted and matched with the notch in the end surface of the hard pressing ring. According to the utility model, the lens can be installed in place in one step in the lens cone, the deviation of the installation direction of the lens is not caused in the whole process, the tedious steps of repeatedly taking out and reinstalling are omitted, and the risk that the lens is damaged and polluted is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical component installation, and more particularly, to a lens installation tool. Background Art

[0002] The focusing lens and the collimating lens are important components in a laser instrument, mainly composed of a lens barrel and a plano-convex lens. During the process of installing the plano-convex lens into the lens barrel, generally, the plane of the plano-convex lens should face downwards, and at the same time, the cleanliness of the plano-convex lens should be maintained.

[0003] Taking the installation of a plano-convex lens in the lens barrel of a focusing lens as an example, the inner diameter of the lens barrel is slightly larger than the outer diameter of the plano-convex lens. The existing installation method is usually as follows: gently pick up the plano-convex lens with tweezers and place it into the lens barrel, and then sequentially install a soft washer and a hard retaining ring for fixation. In the above process, when placing the plano-convex lens into the lens barrel, it is very difficult to control the posture of the plano-convex lens, resulting in the plano-convex lens being unable to be accurately installed into the lens barrel with the plane facing downwards, causing a deviation in the installation direction. If the plano-convex lens is taken out and reinstalled repeatedly, it is easy to damage and contaminate the lens. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lens installation tool to solve the technical problem that the existing lens installation method is prone to deviation in the installation direction, thus requiring repeated removal and reinstallation.

[0005] The lens installation tool provided by the utility model is used to install a lens into a lens barrel. The lens installation tool includes a tool body, the tool body is provided with a supporting portion and a protruding portion, the supporting portion and the protruding portion face away from each other, and the outer diameters of both the supporting portion and the protruding portion are smaller than the inner diameter of the lens barrel. Among them, the supporting portion can support the lens to be installed; the protruding portion can be inserted and matched with the notch on the end face of the hard retaining ring.

[0006] Further, the lens installation tool further includes a buffer ring, the buffer ring is fixedly arranged on the supporting portion, and the supporting portion contacts the lens through the buffer ring.

[0007] Further, the material of the buffer ring is rubber.

[0008] Further, the lens installation tool further includes a dust-proof cap, and the dust-proof cap covers the supporting portion.

[0009] Further, the dust-proof cap includes a sleeve and a dust-proof cover. The sleeve has openings at both ends. One end of the sleeve is sleeved on the supporting portion, and the dust-proof cover seals the other end of the sleeve. The dust-proof cover and the sleeve are of an integral structure.

[0010] Further, the tool body is columnar, one end of the tool body forms the supporting portion, and the protruding portion is provided at the other end of the tool body.

[0011] Further, the tool body is a hollow structure.

[0012] Further, the tool body is cylindrical, and a plurality of flattened planes are provided on the outer peripheral surface of the tool body, and the plurality of flattened planes are arranged at intervals along the circumferential direction of the tool body.

[0013] Further, the material of the tool body is stainless steel; and / or, the number of the protruding portions is multiple, and the multiple protruding portions are respectively used for plugging and matching with the multiple notches on the end surface of the hard pressing ring one by one.

[0014] Further, the outer diameter of the tool body is D 1 , and the inner diameter of the lens barrel is D 2 , where 0.5mm < D 2 -D 1 < 1.5mm.

[0015] The beneficial effects brought by the lens mounting tool of the present utility model are as follows:

[0016] By providing a tool body with a supporting portion and a protruding portion, when it is necessary to mount a lens on a lens barrel, taking the installation process in which the lens is a plano-convex lens and the plane of the lens enters the lens barrel first as an example, during installation, the tool body is placed vertically with the supporting portion facing upwards, the convex surface of the lens is facing the supporting portion of the tool body, and the lens is carried by the supporting portion; then, the tool body remains stationary, and the lens barrel is aligned with the tool body and the lens from above and sleeved on the tool body, or the lens barrel remains stationary, and the tool body and the lens move upwards and are pushed into the lens barrel; afterwards, the lens barrel and the tool body are turned over 180° together so that the lens barrel is at the bottom and the tool body is at the top, and the tool body is pulled out of the lens barrel to complete the placement of the lens in the lens barrel; after the placement operation of the lens is completed, the soft washer and the hard pressing ring are stacked in the lens barrel in sequence, and the protruding portion of the tool body is plugged and matched with the notch on the end surface of the hard pressing ring, and then the tool body is rotated, and the rotational power is transmitted to the hard pressing ring by the plugging and matching action between the protruding portion and the notch, so that the hard pressing ring can be screwed with the internal thread of the lens barrel through its external thread, thereby achieving the purpose of fixing the lens.

[0017] It can be seen that by providing this lens mounting tool, the lens can be mounted in place in the lens barrel at one time, and the installation direction of the lens will not be deviated during the whole process, eliminating the cumbersome steps of repeatedly taking out and reinstalling, thereby effectively reducing the risk of damage and contamination to the lens. In addition, this lens mounting tool has a simple structure and is convenient to operate. Description of the Drawings

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a lens installation tool provided by an embodiment of the utility model;

[0020] Figure 2 An exploded view of the structure of the lens installation tool provided by the embodiment of the utility model;

[0021] Figure 3 A structural exploded view of a lens installation tool provided by an embodiment of the utility model in a cutaway perspective;

[0022] Figure 4 One of the schematic diagrams of the installation process of the lens installation tool provided in the embodiment of the utility model;

[0023] Figure 5 The second schematic diagram of the installation process of the lens installation tool provided in the embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 010-lens installation tool; 020-lens barrel; 030-lens; 040-soft gasket; 050-hard pressure ring; 051-notch;

[0026] 100- tool body; 110- supporting part; 120- raised part; 130- milled flat surface; 200- buffer ring; 300- dust cap; 310- sleeve; 320- dust cover. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Figure 1 A schematic diagram of the structure of the lens installation tool 010 provided in this embodiment; Figure 2 An exploded view of the structure of the lens installation tool 010 provided in this embodiment; Figure 3 The structure of the lens installation tool 010 provided in this embodiment is exploded in a cutaway perspective. Figures 1 to 3As shown in the figure, this embodiment provides a lens installation tool 010 for installing a lens 030 on a lens barrel 020. Specifically, the lens installation tool 010 includes a tool body 100. The tool body 100 is provided with a supporting portion 110 and a protruding portion 120. The supporting portion 110 and the protruding portion 120 face away from each other, and the outer diameters of both the supporting portion 110 and the protruding portion 120 are smaller than the inner diameter of the lens barrel 020. Among them, the supporting portion 110 can support the lens 030 to be installed; the protruding portion 120 can be inserted and matched with a notch 051 on the end face of a rigid retaining ring 050.

[0029] Figure 4 FIG. 4 is one of the schematic diagrams of the installation process of the lens installation tool 010 provided in this embodiment. Figure 5 FIG. 5 is the second schematic diagram of the installation process of the lens installation tool 010 provided in this embodiment. Taking the installation process in which the lens 030 is a plano-convex lens and the plane of the lens 030 enters the lens barrel 020 first as an example for description. When the lens 030 needs to be installed on the lens barrel 020, as Figure 4 shown, the tool body 100 is placed vertically with the supporting portion 110 facing upward. The convex surface of the lens 030 is oriented towards the supporting portion 110 of the tool body 100, and the supporting portion 110 is used to carry the lens 030; then, the tool body 100 remains stationary, and the lens barrel 020 is aligned with the tool body 100 and the lens 030 from above and sleeved onto the tool body 100, or the lens barrel 020 remains stationary, and the tool body 100 and the lens 030 move upward and are pushed into the interior of the lens barrel 020; after that, as Figure 5 shown, the lens barrel 020 together with the tool body 100 is flipped 180°, so that the lens barrel 020 is at the bottom and the tool body 100 is at the top, and the tool body 100 is withdrawn from the lens barrel 020 to complete the placement of the lens 030 in the lens barrel 020; after the placement operation of the lens 030 is completed, the soft washer 040 and the rigid retaining ring 050 are stacked in the lens barrel 020 in sequence, and the protruding portion 120 of the tool body 100 is inserted and matched with the notch 051 on the end face of the rigid retaining ring 050. Then, the tool body 100 is rotated, and the rotational power is transmitted to the rigid retaining ring 050 by the insertion and matching action between the protruding portion 120 and the notch 051, so that the rigid retaining ring 050 can be helically engaged with the internal thread of the lens barrel 020 through its external thread, thereby achieving the purpose of fixing the lens 030.

[0030] It can be seen that by providing the lens installation tool 010, the lens 030 can be installed in place in the lens barrel 020 at one time, and the installation direction of the lens 030 will not be deviated during the whole process, saving the cumbersome steps of repeatedly taking out and reinstalling, thereby effectively reducing the risk of damage and contamination to the lens 030. In addition, the lens installation tool 010 has a simple structure and is convenient to operate.

[0031] In this embodiment, the hard retaining ring 050 is made of metal.

[0032] Please continue to refer to Figures 2 to 4 , in this embodiment, the lens mounting tool 010 may further include a buffer ring 200. Specifically, the buffer ring 200 is fixedly arranged on the supporting portion 110, and the supporting portion 110 contacts the lens 030 through the buffer ring 200.

[0033] The above setting of the buffer ring 200 enables the buffer ring 200 to directly contact the lens 030 when the supporting portion 110 of the tool body 100 is used to support the lens 030, thereby effectively reducing the instantaneous impact force received by the lens 030, reducing the wear caused to the lens 030, and playing a certain protective role for the lens 030.

[0034] In addition, the supporting portion 110 contacts the convex surface of the lens 030 through the buffer ring 200, and can also utilize the cooperation between the hollow portion of the buffer ring 200 and the convex surface of the lens 030 to play a certain horizontal limiting effect on the lens 030, reducing the risk of the lens 030 slipping along the horizontal direction.

[0035] Specifically, the material of the buffer ring 200 is rubber.

[0036] This setting enables the buffer ring 200 to not only have good buffer and shock absorption performance, but also have a certain supporting ability, ensuring the supporting stability of the lens 030.

[0037] Please continue to refer to Figures 1 to 3 , in this embodiment, the lens mounting tool 010 may further include a dust cap 300. Specifically, the dust cap 300 covers the supporting portion 110. Among them, after the dust cap 300 covers the supporting portion 110, the buffer ring 200 is also within the dust cap 300, and is protected from dust by the dust cap 300.

[0038] The above setting of the dust cap 300 can protect the supporting portion 110 and the buffer ring 200 from dust, avoid contaminating the lens 030 during the lens 030 supporting process due to the adhesion of impurities to the supporting portion 110 and the buffer ring 200, and play a certain protective role for the lens 030.

[0039] Please continue to refer to Figure 3 , in this embodiment, the dust cap 300 includes a sleeve 310 and a dust cover 320. Specifically, both ends of the sleeve 310 are open, one end of the sleeve 310 is sleeved on the supporting portion 110, the dust cover 320 covers the other end of the sleeve 310, and the dust cover 320 and the sleeve 310 are of an integral structure.

[0040] With this arrangement of the dust cap 300, it can be directly sleeved on the supporting portion 110 through the sleeve 310. When it is necessary to install the lens 030, the sleeve 310 can be simply pulled out from the supporting portion 110 to expose the supporting portion 110 and the buffer ring 200, making the installation and disassembly easy. Moreover, by integrating the dust cover 320 with the sleeve 310, the number of components of the dust cap 300 can be reduced, thus improving the assembly efficiency.

[0041] Please continue to refer to Figures 1 to 3 , in this embodiment, the tool body 100 is columnar. Specifically, one end of the tool body 100 forms the supporting portion 110, and the protruding portion 120 is provided at the other end of the tool body 100.

[0042] With this arrangement of the tool body 100, it not only has a simple structure and is convenient for processing and manufacturing, but also has a small volume and is convenient for storage.

[0043] Please continue to refer to Figure 3 , in this embodiment, the tool body 100 is a hollow structure. That is to say, the tool body 100 is a hollow rod structure.

[0044] By setting the tool body 100 as a hollow structure, not only can the weight of the tool body 100 be reduced, thus reducing the weight of the lens installation tool 010 in this embodiment, but also the structural strength of the tool body 100 can be increased to extend its service life.

[0045] Please continue to refer to Figure 1 and Figure 2 , in this embodiment, the tool body 100 is cylindrical, and a plurality of flattened planes 130 are provided on the outer peripheral surface of the tool body 100. Specifically, the plurality of flattened planes 130 are arranged at intervals along the circumferential direction of the tool body 100.

[0046] By providing a plurality of spaced-apart flattened planes 130 on the outer periphery of the tool body 100, when installing the hard pressing ring 050, the operator can rotate the tool body 100 by applying a clamping force to the flattened planes 130, improving the installation convenience of the hard pressing ring 050.

[0047] Please continue to refer to Figure 5 , in this embodiment, the outer diameter of the tool body 100 is D 1 , the inner diameter of the lens barrel 020 is D 2 , where, 0.5mm < D 2 -D 1 <1.5mm.

[0048] By restricting the inner diameter of the lens barrel 020 and the outer diameter of the tool body 100 within the above ranges, on the one hand, it is possible to avoid the collision interference during the insertion of the tool body 100 into the lens barrel 020 due to the too small difference between the inner diameter of the lens barrel 020 and the outer diameter of the tool body 100. On the other hand, it is also possible to avoid the situation where the lens 030 is not stably supported due to the too large difference between the inner diameter of the lens barrel 020 and the outer diameter of the tool body 100.

[0049] Preferably, the inner diameter of the lens barrel 020 is 1 mm larger than the outer diameter of the tool body 100.

[0050] In this embodiment, the material of the tool body 100 is stainless steel.

[0051] By setting the material of the tool body 100 to stainless steel, not only can the corrosion resistance of the tool body 100 be increased, but also the strength of the tool body 100 can be improved to extend the service life of the tool body 100.

[0052] Please continue to refer to Figure 5 , in this embodiment, two notches 051 are provided on the end face of the hard pressing ring 050; please continue to refer to Figure 1 and Figure 3 , the number of the protruding portions 120 is also two, and the two protruding portions 120 are respectively used for plugging and matching with the two notches 051 on the end face of the hard pressing ring 050 one by one. That is to say, during the installation of the hard pressing ring 050, the two protruding portions 120 of the tool body 100 are respectively plugged into the two notches 051 of the hard pressing ring 050 to transmit the rotational acting force to the hard pressing ring 050.

[0053] This form of realizing torque transmission by respectively plugging and matching the two protruding portions 120 of the tool body 100 with the two notches 051 of the hard pressing ring 050 can ensure the force uniformity of the hard pressing ring 050 and avoid the situation of local stress concentration of the hard pressing ring 050.

[0054] In this embodiment, the two protruding portions 120 of the tool body 100 are arranged at an interval of 180° in the circumferential direction, that is to say, the two protruding portions 120 are arranged at equal intervals in the circumferential direction of the tool body 100.

[0055] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

[0056] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0057] In the above embodiments, the descriptions of orientations such as "upper", "lower", "side", etc. are all based on the figures shown.

[0058] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lens installation tool, characterized in that: The lens installation tool is used for installing a lens (030) on a lens barrel (020), and comprises a tool body (100). The tool body (100) is provided with a supporting portion (110) and a protruding portion (120), wherein the supporting portion (110) is opposite to the protruding portion (120), and the outer diameters of the supporting portion (110) and the protruding portion (120) are both smaller than the inner diameter of the lens barrel (020), wherein the supporting portion (110) is capable of supporting the lens (030) to be installed; and the protruding portion (120) is capable of being plugged into and matched with a notch (051) on the end face of a hard pressure ring (050).

2. The lens installation tool according to claim 1, characterized in that: The lens installation tool further comprises a buffer ring (200), wherein the buffer ring (200) is fixedly arranged on the supporting portion (110), and the supporting portion (110) is in contact with the lens (030) through the buffer ring (200).

3. The lens installation tool according to claim 2, characterized in that: The material of the buffer ring (200) is rubber.

4. The lens installation tool according to claim 1, characterized in that: The lens installation tool also includes a dust cap (300), and the dust cap (300) is covered on the supporting portion (110).

5. The lens installation tool according to claim 4, characterized in that: The dust cap (300) comprises a sleeve (310) and a dust cover (320); both ends of the sleeve (310) are open; one end of the sleeve (310) is sleeved on the supporting portion (110); the dust cover (320) is sealed on the other end of the sleeve (310); and the dust cover (320) and the sleeve (310) are an integral structure.

6. The lens installation tool according to claim 1, characterized in that: The tool body (100) is columnar, one end of the tool body (100) forms the supporting portion (110), and the protruding portion (120) is arranged at the other end of the tool body (100).

7. The lens installation tool according to claim 6, characterized in that: The tool body (100) is a hollow structure.

8. The lens installation tool according to claim 6, characterized in that: The tool body (100) is cylindrical, and a plurality of milled flat surfaces (130) are arranged on the outer peripheral surface of the tool body (100). The plurality of milled flat surfaces (130) are arranged at intervals along the circumference of the tool body (100).

9. The lens installation tool according to claim 6, characterized in that: The outer diameter of the tool body (100) is D1, and the inner diameter of the lens barrel (020) is D2, wherein 0.5 mm < D2 - D1 < 1.5 mm.

10. The lens installation tool according to claim 1, characterized in that: The tool body (100) is made of stainless steel; and / or, the number of the protrusions (120) is multiple, and the multiple protrusions (120) are respectively used to be plugged and matched with the multiple notches (051) on the end surface of the hard pressure ring (050) in a one-to-one correspondence.

Images