Centring clamping device for a lens
Patent Information
- Application Number
- CN202521894955.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-09-03
AI Technical Summary
但目前常用的镜头夹持装置通常为平面螺纹加齿轮结构、齿轮齿条结构或同步带机构，这几种方案的夹持装置通常外形尺寸较大，结构件加工及装配精度高，进而导致成本也大幅提升，对车载、无人机等领域的微小镜头实用性较差
本申请提供的用于镜头的向心夹持装置，通过在底盘上设置对称的至少两个弹性向心夹持结构，对放置于底盘中部孔洞中镜头施加均匀的夹持力，从而实现对镜头的夹持，具体地，每个弹性向心夹持结构包括定位块、弹性构件和夹紧块，其中定位块中设有开口朝向孔洞的安装槽，使得弹性构件的一端安装在该安装槽的底部，另一端与设置于该安装槽的槽口处的夹紧块连接，弹性构件为夹紧块提供朝向孔洞的弹性向心力，从而使得夹紧块能够夹持放置为孔洞中的镜头，该向心夹持装置结构简单、尺寸小、成本低，且由于该弹性向心夹持结构提供的是弹性夹持力，因此能够兼容不同型号和不同规格的镜头。
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Figure CN224855694U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of optical equipment technology, and in particular relates to a centripetal clamping device for a lens. Background Technology
[0002] In the field of lens inspection, it is often necessary to clamp and fix the lens under test to ensure the stability and accuracy of the test. However, the commonly used lens clamping devices are usually planar thread plus gear structure, gear and rack structure or synchronous belt mechanism. These clamping devices are usually large in size, and the structural parts are processed and assembled with high precision, which leads to a significant increase in cost. They are not very practical for tiny lenses in fields such as automotive and drones. Utility Model Content
[0003] This application aims to at least solve one of the technical problems existing in the related art. To this end, this application proposes a centripetal clamping device for lenses, which has a simple structure, small size, low cost, and can be applied to clamping different types of lenses.
[0004] In a first aspect, this application provides a centripetal clamping device for a lens, comprising: A chassis, wherein a hole for placing the lens is formed in the middle of the chassis; At least two elastic centripetal clamping structures are symmetrically arranged on the chassis along the radial direction of the chassis for clamping the lens; Each of the aforementioned elastic centripetal clamping structures includes a positioning block, an elastic member, and a clamping block; The positioning block has a mounting groove with an opening facing the hole. The elastic member is disposed in the mounting groove, with one end installed at the bottom of the mounting groove and the other end connected to the clamping block. It is used to provide the clamping block with an elastic centripetal force facing the hole. The clamping block is disposed at the opening of the mounting groove and is used to clamp the lens.
[0005] In some embodiments, the elastic member includes an elastic body and a cylindrical pin; The first end of the elastomer is installed at the bottom of the mounting groove, the second end is connected to the first end of the cylindrical pin, and the second end of the cylindrical pin is connected to the clamping block.
[0006] In some embodiments, the bottom of the mounting groove is provided with a first guide structure, and the side of the clamping block facing the cylindrical pin is provided with a second guide structure; The first end of the elastomer is mounted at the bottom of the mounting groove via the first guide structure, and the second end of the cylindrical pin is connected to the clamping block via the second guide structure.
[0007] In some embodiments, the second guide structure is a cylindrical groove adapted to the shape of the cylindrical pin.
[0008] In some embodiments, the first guide structure is a guide post.
[0009] In some embodiments, the positioning block has a plurality of cylindrical mounting slots arranged in parallel for mounting the elastic member, and each of the cylindrical mounting slots is isolated from the others.
[0010] In some embodiments, the mounting groove is a through groove capable of accommodating multiple elastic members arranged side by side.
[0011] In some embodiments, the second guide structure includes a plurality of cylindrical grooves, each of the cylindrical grooves being used to provide installation guidance for one of the cylindrical pins; The first guide structure includes a plurality of guide posts, each of which is used to provide installation guidance for one of the elastomers.
[0012] In some embodiments, the side of the clamping block facing the hole is arc-shaped, and the clamping block is made of a flexible material.
[0013] In some embodiments, the chassis has a third guide structure at the hole for guiding the lens, and the clamping block has a fourth guide structure on the side facing the hole for guiding the lens.
[0014] The above-described one or more technical solutions in the embodiments of this application have at least the following technical effects: The centripetal clamping device for lenses provided in this application applies a uniform clamping force to a lens placed in a hole in the center of the chassis by setting at least two symmetrical elastic centripetal clamping structures on the chassis, thereby achieving lens clamping. Specifically, each elastic centripetal clamping structure includes a positioning block, an elastic member, and a clamping block. The positioning block has a mounting groove with an opening facing the hole, so that one end of the elastic member is installed at the bottom of the mounting groove, and the other end is connected to the clamping block set at the opening of the mounting groove. The elastic member provides the clamping block with an elastic centripetal force towards the hole, thereby enabling the clamping block to clamp the lens placed in the hole. This centripetal clamping device has a simple structure, small size, and low cost. Moreover, since the elastic centripetal clamping structure provides an elastic clamping force, it can be compatible with lenses of different models and specifications.
[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective structural schematic diagram of the centripetal clamping device for a lens provided in an embodiment of this application; Figure 2 This is a cross-sectional structural schematic diagram of the centripetal clamping device for a lens provided in an embodiment of this application; Figure 3 This is a partial structural schematic diagram of the centripetal clamping device for a lens provided in an embodiment of this application; Reference numerals: 1-chassis; 2-lens; 3-clamping block; 4-cylindrical pin; 5-elastic body; 6-positioning block. Detailed Implementation
[0017] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0018] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0019] The centripetal clamping device for lenses provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0020] like Figures 1 to 3 As shown, this application embodiment provides a centripetal clamping device for a lens, including: A chassis 1 has a hole formed in the middle for placing the lens 2; at least two elastic centripetal clamping structures are symmetrically arranged on the chassis 1 along the radial direction for clamping the lens 2; each elastic centripetal clamping structure includes a positioning block 6, an elastic member, and a clamping block 3; the positioning block 6 has a mounting groove with an opening facing the hole, the elastic member is disposed in the mounting groove, and one end is installed at the bottom of the mounting groove, and the other end is connected to the clamping block 3 for providing the clamping block 3 with an elastic centripetal force towards the hole, the clamping block 3 is disposed at the opening of the mounting groove for clamping the lens 2.
[0021] The centripetal clamping device for lenses provided in this application applies a uniform clamping force to a lens 2 placed in a hole in the center of the chassis 1 by setting at least two symmetrical elastic centripetal clamping structures on the chassis 1. Specifically, each elastic centripetal clamping structure includes a positioning block 6, an elastic member, and a clamping block 3. The positioning block 6 has a mounting groove with an opening facing the hole, so that one end of the elastic member is installed at the bottom of the mounting groove, and the other end is connected to the clamping block 3 set at the opening of the mounting groove. The elastic member provides an elastic centripetal force to the clamping block 3 towards the hole, so that the clamping block 3 can clamp the lens 2 placed in the hole. The centripetal clamping device has a simple structure, small size, and low cost. Since the elastic centripetal clamping structure provides an elastic clamping force, it can be compatible with lenses 2 of different models and specifications.
[0022] It should be noted that the lens 2 in this embodiment can be the lens under test. That is, the centripetal clamping device is a tool for moving the lens in the lens testing device, preventing the lens 2 from being damaged by direct hand contact. The lens 2 can be a vehicle lens, a drone lens, an endoscope lens, etc.
[0023] In some embodiments, the resilient centripetal clamping structure can be fixed to the chassis 1 by pins. Furthermore, the end of the positioning block 6 of the resilient centripetal clamping structure away from the hole is fixed to the chassis 1 by pins.
[0024] In some embodiments, the elastic member includes an elastic body 5 and a cylindrical pin 4; a first end of the elastic body 5 is mounted at the bottom of the mounting groove, a second end is connected to the first end of the cylindrical pin 4, and the second end of the cylindrical pin 4 is connected to the clamping block 3.
[0025] The elastic component consists of an elastic body 5 and a cylindrical pin 4. On the one hand, the cylindrical pin 4 is used to abut against the clamping block 3, which can better transmit the centripetal force provided by the elastic body 5 to the clamping block 3. On the other hand, the elastic body 5 is generally of standard size. The form of elastic body 5 + cylindrical pin 4 can flexibly set the size of the centripetal force according to the needs. For example, if a larger centripetal force is required, the length of the cylindrical pin 4 can be set to be longer.
[0026] It is worth noting that in this embodiment, the elastic body 5 and the cylindrical pin 4 are first fixed together to form an elastic member, and then the elastic member is installed in the mounting groove; alternatively, the elastic body 5 can be installed in the mounting groove first, and then the cylindrical pin 4 can be connected to the elastic body 5, so that the entire elastic member is set in the mounting groove. The elastic body 5 and the cylindrical pin 4 can be bonded and fixed with adhesives such as glue, or the first end of the cylindrical pin 4 can be set as a protruding structure, which is used to fix it to the elastic body 5. Alternatively, no structural modifications can be made, and the effective connection between the two can be achieved solely through the inner wall of the mounting groove. Understandably, any method of connecting the cylindrical pin 4 and the elastic body 5 is acceptable, and this application does not limit this. In some embodiments, the elastic body 5 is a spring, and the mounting groove is a cylindrical groove adapted to the shape of the spring and the cylindrical pin 4.
[0027] In some embodiments, the bottom of the mounting groove is provided with a first guide structure, and the side of the clamping block 3 facing the cylindrical pin 4 is provided with a second guide structure. The first end of the elastic body 5 is mounted at the bottom of the mounting groove through the first guide structure, and the second end of the cylindrical pin 4 is connected to the clamping block 3 through the second guide structure.
[0028] In this embodiment, by setting a first guide structure at the bottom of the mounting groove and a second guide structure on the side of the clamping block 3 facing the cylindrical pin 4, the first end of the elastic body 5 is installed at the bottom of the mounting groove through the first guide structure, and the second end of the cylindrical pin 4 is connected to the clamping block 3 through the second guide structure, which facilitates the installation and disassembly of the elastic component.
[0029] In some embodiments, the second guide structure is a cylindrical groove adapted to the shape of the cylindrical pin 4, which can effectively guide the cylindrical pin 4 to abut against the clamping block 3. It is understood that the second guide structure is integrally formed with the clamping block 3 to avoid excessive parts leading to structural complexity.
[0030] In some embodiments, the first guide structure is a guide post, which can effectively guide the spring to be installed at the bottom of the mounting slot.
[0031] In some embodiments, the positioning block 6 is provided with a plurality of cylindrical mounting slots for mounting the elastic member, and each of the cylindrical mounting slots is isolated from the others.
[0032] like Figure 1As shown, the positioning block 6 is a cuboid structure. Multiple mutually isolated cylindrical mounting slots with shapes adapted to the cylindrical pin 4 are provided in the positioning block 6. Each cylindrical mounting slot can be equipped with an elastic component, so the centripetal bearing force can be adjusted by increasing or decreasing the number of elastic components.
[0033] Understandably, although the positioning block 6 is provided with multiple cylindrical mounting slots, in actual use, it is not necessary to provide an elastic member in each cylindrical mounting slot to achieve flexible adjustment of the centripetal bearing force. In some embodiments, the number of cylindrical mounting slots is three.
[0034] In some embodiments, the mounting groove is a through groove capable of accommodating multiple elastic members arranged side by side.
[0035] This embodiment can be understood as an embodiment parallel to the previous embodiment. In this embodiment, the positioning block 6 has only one mounting slot, and the mounting slot can accommodate multiple elastic members arranged side by side. In this way, not only can the centripetal bearing force be adjusted by increasing or decreasing the number of elastic members, but the design of the mounting slot can also be simplified.
[0036] In some embodiments, the second guide structure includes a plurality of cylindrical grooves, each of the cylindrical grooves providing installation guidance for one of the cylindrical pins 4. The first guide structure includes a plurality of guide posts, each of the guide posts providing installation guidance for one of the elastomers 5.
[0037] In this embodiment, the first guide structure includes multiple guide posts, each guide post guiding an elastic body 5, and the second guide structure includes multiple cylindrical grooves, each cylindrical groove guiding a cylindrical pin 4, thereby providing installation guidance for multiple elastic components.
[0038] Understandably, in this embodiment, the number of cylindrical grooves is the same as the number of guide posts, and they are arranged opposite to each other to achieve parallel arrangement of multiple elastic components. In some embodiments, the number of cylindrical grooves and guide posts is three.
[0039] In some embodiments, the clamping block 3 has an arc-shaped side facing the hole, and the clamping block 3 is made of a flexible material.
[0040] The curved clamping block 3 can better hold the lens 2. The flexible material clamping block 3 can maintain the clamping strength while flexibly holding the lens 2, avoiding surface damage to the lens 2 during the clamping process. Specifically, the flexible material can be plastic, and more specifically, it can be polyoxymethylene (POM), Teflon (polytetrafluoroethylene), etc.
[0041] In some embodiments, the base 1 has a third guide structure at the hole for guiding the lens 2, and the clamping block 3 has a fourth guide structure on the side facing the hole for guiding the lens 2.
[0042] Guide structures are provided at the holes in the chassis 1 and on the side of the clamping block 3 facing the holes, which can enable the lens 2 to be placed and removed quickly.
[0043] The working principle of this centripetal clamping device will be explained below to provide a clearer understanding of its structure: When using this device to clamp the lens 2, the lens 2 is placed in the hole in the middle of the chassis 1 through the fourth guide structure of the clamping block 3 and the third guide structure of the chassis 1, and the bottom end of the lens 2 is aligned with the bearing surface at the bottom of the hole of the chassis 1. At this time, the elastic component installed in the mounting groove of the positioning block 6 will automatically provide centripetal force to the clamping block 3, so that the arc surface of the clamping block 3 abuts against the lens 2, thereby clamping the lens 2.
[0044] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0045] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0047] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A centripetal clamping device for a lens, characterized in that, include: The chassis (1) has a hole formed in the middle for placing the lens (2); At least two elastic centripetal clamping structures are symmetrically arranged on the chassis (1) along the radial direction of the chassis (1) for clamping the lens (2). Each of the elastic centripetal clamping structures includes a positioning block (6), an elastic member, and a clamping block (3); The positioning block (6) is provided with an installation groove with an opening facing the hole. The elastic member is disposed in the installation groove, with one end installed at the bottom of the installation groove and the other end connected to the clamping block (3) to provide the clamping block (3) with an elastic centripetal force facing the hole. The clamping block (3) is disposed at the opening of the installation groove to clamp the lens (2).
2. The apparatus according to claim 1, characterized in that, The elastic member includes an elastic body (5) and a cylindrical pin (4); The first end of the elastomer (5) is installed at the bottom of the mounting groove, and the second end is connected to the first end of the cylindrical pin (4). The second end of the cylindrical pin (4) is connected to the clamping block (3).
3. The apparatus according to claim 2, characterized in that, The bottom of the mounting groove is provided with a first guide structure, and the side of the clamping block (3) facing the cylindrical pin (4) is provided with a second guide structure; The first end of the elastomer (5) is installed at the bottom of the mounting groove through the first guide structure, and the second end of the cylindrical pin (4) is connected to the clamping block (3) through the second guide structure.
4. The apparatus according to claim 3, characterized in that, The second guide structure is a cylindrical groove that is adapted to the shape of the cylindrical pin (4).
5. The apparatus according to claim 3, characterized in that, The first guide structure is a guide post.
6. The apparatus according to claim 3, characterized in that, The positioning block (6) has multiple cylindrical mounting slots arranged in parallel for installing the elastic component, and each cylindrical mounting slot is isolated from the others.
7. The apparatus according to claim 3, characterized in that, The mounting groove is a through groove capable of accommodating multiple elastic components arranged side by side.
8. The apparatus according to claim 6 or 7, characterized in that, The second guide structure includes a plurality of cylindrical grooves, each of the cylindrical grooves being used to provide installation guidance for one of the cylindrical pins (4); The first guide structure includes a plurality of guide posts, each of which is used to provide installation guidance for one of the elastomers (5).
9. The apparatus according to any one of claims 1-7, characterized in that, The clamping block (3) has an arc-shaped side facing the hole, and the clamping block (3) is made of a flexible material.
10. The apparatus according to any one of claims 1-7, characterized in that, The chassis (1) has a third guide structure at the hole for guiding the lens (2), and the clamping block (3) has a fourth guide structure on the side facing the hole for guiding the lens (2).