WO2020258306A1 - 定位工装 - Google Patents

定位工装 Download PDF

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Publication number
WO2020258306A1
WO2020258306A1 PCT/CN2019/093878 CN2019093878W WO2020258306A1 WO 2020258306 A1 WO2020258306 A1 WO 2020258306A1 CN 2019093878 W CN2019093878 W CN 2019093878W WO 2020258306 A1 WO2020258306 A1 WO 2020258306A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning tool
suction hole
cylinder
stepped
barrel
Prior art date
Application number
PCT/CN2019/093878
Other languages
English (en)
French (fr)
Inventor
王海龙
Original Assignee
瑞声光学解决方案私人有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声光学解决方案私人有限公司 filed Critical 瑞声光学解决方案私人有限公司
Priority to PCT/CN2019/093878 priority Critical patent/WO2020258306A1/zh
Priority to CN201921031304.9U priority patent/CN210090793U/zh
Publication of WO2020258306A1 publication Critical patent/WO2020258306A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof

Definitions

  • This application relates to the technical field of camera lenses, and in particular to a positioning tool.
  • the lens assembly generally includes a lens barrel and a lens housed in the lens barrel.
  • a positioning tool when the lens is assembled into the lens barrel, a positioning tool needs to be used to position the lens barrel.
  • the outer side of the lens barrel includes a stepped surface.
  • the smaller head of the lens barrel is generally facing down, and the head is placed in the accommodating cavity of the positioning tool, so that the stepped surface outside the lens barrel is in line with the positioning tool.
  • the positioning surface abuts, and then press the lens into the lens barrel from the rear of the lens barrel.
  • this assembly and positioning method will cause the head to have a large force arm, it is difficult to control the force of the pressing, and it is easy to deform the head, thereby affecting the positioning stability of the lens barrel.
  • the purpose of this application is to provide a positioning tool that can solve the above technical problems.
  • a positioning tool for positioning a lens barrel includes a first barrel, a stepped structure bent and extended from one end of the first barrel in a direction away from the optical axis, and a stepped structure away from the stepped structure.
  • One end of the optical axis is bent and extended in a direction away from the first cylinder.
  • the stepped structure includes a stepped surface perpendicular to the optical axis and close to the first cylinder.
  • the first cylinder includes an end surface away from the stepped surface, and the positioning tool includes a support.
  • the top of the support is provided with an accommodation groove for accommodating the first cylinder, along a direction parallel to the optical axis,
  • the depth of the accommodating groove is less than the distance between the step surface and the end surface, and when the first cylinder is placed in the accommodating groove, the top surface of the support body is directly opposite to the step surface .
  • the support body is further provided with a suction hole, the suction hole is arranged on the outside of the containing groove and penetrates the support body, and one end of the suction hole is opened in the support body When the first cylinder is placed in the accommodating groove, the opening faces the stepped surface.
  • the number of the suction holes is multiple, and the multiple suction holes are arranged at intervals around the containing groove.
  • the suction hole has an annular structure, and the suction hole is arranged around the containing groove.
  • the positioning tool further includes a vacuum device, and the suction hole is communicated with the vacuum device.
  • the depth of the accommodating groove is 5-10 microns smaller than the distance between the step surface and the end surface.
  • the positioning tool further includes a mounting body connected to the bottom of the support body, and the outer size of the mounting body is larger than the outer size of the support body.
  • the mounting body has a hollow cylindrical structure.
  • the beneficial effect of the present application is that when the lens needs to be assembled into the lens barrel, the first barrel can be placed in the accommodating groove, and the end surface of the first barrel can abut against the bottom of the accommodating groove, so that the first The barrel body is better supported, and when the lens is pressed into the lens, the first barrel body will not be deformed due to force, which ensures the positioning stability of the lens barrel, thereby improving the assembly yield of the lens barrel.
  • FIG. 1 is a schematic diagram of the structure when the positioning tool and the lens barrel cooperate with the embodiment of the application;
  • Figure 2 is an enlarged view of part A shown in Figure 1;
  • Fig. 3 is an enlarged view of part B shown in Fig. 1.
  • the present application provides a positioning tool 100 for positioning the lens barrel 200 in the process of assembling the lens assembly.
  • the lens barrel 200 includes a first barrel 210 and a first barrel.
  • a stepped structure 230 extending from one end of the stepped structure 230 to a direction away from the optical axis and a second cylindrical body 220 extending from an end of the stepped structure 230 to a direction away from the first cylindrical body 210, the stepped structure
  • the lens barrel 200 includes a stepped surface 222 perpendicular to the optical axis of the lens barrel 200 and close to the first barrel 210.
  • the first barrel 210 includes an end surface 212 away from the stepped surface 222, and the end surface 212 is parallel to the stepped surface 222.
  • the positioning tool 100 includes a support body 110.
  • the top of the support body 110 is provided with an accommodating groove 120 for accommodating a first cylinder 210.
  • the depth of the accommodating groove 120 is smaller than that of the stepped surface 222 and The distance between the end surfaces 212, that is, a certain gap is provided between the top surface 112 of the support 110 and the step surface 222.
  • the end surface 212 of the first barrel 210 can face down, and the first barrel 210 can be placed in the accommodating groove 120.
  • the end surface 212 of the first barrel 210 can be The groove bottom 122 of the groove 120 abuts, so that the first cylinder body 210 is better supported.
  • the first cylinder body 210 will not be deformed due to force, which ensures the positioning stability of the lens barrel 200 , Thereby improving the assembly yield of the lens barrel 200.
  • the depth of the accommodating groove 120 is smaller than the distance between the step surface 222 and the end surface 212 by 5-10 microns.
  • the arrangement of this structure can not only ensure that the end surface 212 of the first cylinder 210 smoothly abuts against the bottom 122 of the accommodating groove 120, but also can prevent the second cylinder 220 from being severely deformed during the stress process.
  • the depth of the accommodating groove 120 is smaller than the distance between the step surface 222 and the end surface 212 by 8 micrometers.
  • the supporting body 110 is also provided with a suction hole 130, the suction hole 130 is arranged on the outside of the containing groove and penetrates the supporting body 110, and one end of the suction hole 130 is opened on the top surface 112 of the supporting body 110.
  • the opening is directly facing the stepped surface 222.
  • the positioning tool 100 positions the lens barrel 200, first the end surface 212 of the first barrel 210 is brought into contact with the bottom 122 of the accommodating groove 120, and then a vacuum is applied to the suction hole 130 to adsorb the stepped surface 222 Therefore, the lens barrel 200 is integrally fixed on the positioning tool 100 to prevent the lens barrel 200 from shaking in a plane perpendicular to the optical axis, and ensure the positioning firmness of the lens barrel 200. There is a small gap between the top surface 112 of the support body 110 and the step surface 222 mentioned above, which can also ensure that the step surface 222 can be firmly adsorbed.
  • the vacuum is stopped to the suction hole 130 to unlock the lens barrel 200, and the operator can remove the assembled lens assembly from the positioning tool 100.
  • the present application uses a vacuum suction locking method to realize the locking of the positioning tool 100 to the lens barrel 200, without the use of locking elements such as clamps. On the one hand, it can make the locking and unlocking process of the lens barrel 200 simpler, and the other On the one hand, the locking method will not cause any damage to the surface of the lens barrel 200.
  • the positioning tool 100 also includes a vacuum device (not shown in the figure).
  • the vacuum device is connected to the suction hole 130.
  • the vacuum device When the vacuum device is activated, the suction hole 130 is in a vacuum state, and the step surface 222 can be adsorbed. ;
  • the vacuum device When the vacuum device is stopped, the suction effect of the suction hole 130 on the stepped surface 222 will be released.
  • the number of the suction holes 130 is multiple, and the plurality of suction holes 130 are arranged at intervals around the containing groove 120.
  • the multiple suction holes 130 can be vacuumed at the same time, so that multiple positions on the stepped surface 222 can be adsorbed simultaneously, which can increase the adsorption strength of the stepped surface 222 and also ensure the lens barrel 200 Balance. It can be understood that the multiple suction holes 130 can be connected to the same vacuum device, or can be connected to different vacuum devices respectively.
  • the number of the suction hole 130 is one, the suction hole 130 has a ring structure, and the suction hole 130 is disposed around the containing groove 120.
  • the stepped surface 222 can be adsorbed in the circumferential direction.
  • the positioning tool 100 further includes a mounting body 140 connected to the bottom of the support body 110.
  • the external size of the mounting body 140 is larger than that of the support body 110.
  • the mounting body 140 is used to position the positioning tool 100 on other equipment. on.
  • the mounting body 140 has a hollow cylindrical structure, and the opening at the other end of the suction hole 130 is communicated with the inside of the mounting body 140.
  • Setting the mounting body 140 as a hollow cylindrical structure on the one hand, can reduce the overall weight of the positioning tool 100 and save production materials; on the other hand, the vacuum device or other components can be contained in the mounting body 140, which can reduce Position the overall volume of the tool 100.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)

Abstract

一种定位工装（100），用于定位镜头筒（200），镜头筒（200）包括第一筒体（210）、阶梯结构（230）以及第二筒体（220），阶梯结构（230）包括阶梯面（222），第一筒体（210）包括远离阶梯面（222）的端面（212），定位工装（100）包括支撑体（110），支撑体（110）的顶部开设有收容第一筒体（210）的容置槽（120），沿平行于光轴的方向，容置槽（120）的深度小于阶梯面（222）和端面（212）之间的距离。

Description

定位工装 技术领域
本申请涉及摄像镜头技术领域，尤其涉及一种定位工装。
 背景技术
近年来，随着科技的不断发展，电子设备不断地朝着智能化发展，除了数码相机外，便携式电子设备例如平板电脑、手机等也都配备了镜头组件。现有技术中镜头组件一般包括镜头筒和收容于镜头筒内的镜片等。
 技术问题
在现有技术中，往镜头筒内组装镜片时，需要使用定位工装将镜头筒进行定位。镜头筒的外侧面包括台阶面，在组装镜片时，一般是将镜头筒较小的头部朝下，将头部放置于定位工装的容纳腔内，使镜头筒外部的阶梯面与定位工装的定位面抵接，然后从镜头筒的尾部将镜片压入镜头筒内。在压入镜片的过程中，这种组装定位方式会导致头部存在很大的力臂，很难控制压入的力的大小，容易使头部发生变形，从而影响镜头筒的定位稳定性。
因此，有必要提供一种新的定位工装。
 技术解决方案
本申请的目的在于提供一种定位工装，能够解决上述技术问题。
本申请的技术方案如下：
一种定位工装，用于定位镜头筒，所述镜头筒包括第一筒体、自所述第一筒体的一端向远离光轴方向弯折延伸的阶梯结构以及自所述阶梯结构的远离所述光轴的一端向远离所述第一筒体的方向弯折延伸的第二筒体，所述阶梯结构包括与所述光轴相垂直且靠近所述第一筒体的阶梯面，所述第一筒体包括远离所述阶梯面的端面，所述定位工装包括支撑体，所述支撑体的顶部开设有收容所述第一筒体的容置槽，沿平行于光轴的方向，所述容置槽的深度小于所述阶梯面和所述端面之间的距离，当所述第一筒体放置于所述容置槽内时，所述支撑体的顶面正对所述阶梯面。
进一步的，所述支撑体上还开设有吸气孔，所述吸气孔设置于所述容置槽的外侧且贯穿所述支撑体，且所述吸气孔的一端开口位于所述支撑体的顶面上，当所述第一筒体放置于所述容置槽内时，所述开口正对所述阶梯面。
进一步的，所述吸气孔的数目为多个，多个所述吸气孔围绕所述容置槽间隔设置。
进一步的，所述吸气孔为环形结构，所述吸气孔围绕所述容置槽设置。
进一步的，所述定位工装还包括真空装置，所述吸气孔与所述真空装置相连通。
进一步的，所述容置槽的深度比所述阶梯面和所述端面之间的距离小5-10微米。
进一步的，所述定位工装还包括安装体，所述安装体连接于所述支撑体的底部，所述安装体的外部尺寸大于所述支撑体的外部尺寸。
进一步的，所述安装体为中空的筒状结构。
 有益效果
本申请的有益效果在于：需要往镜头筒内组装镜片时，可将第一筒体放置于容置槽内，第一筒体的端面能够与容置槽的槽底相抵接，从而使第一筒体得到较好的支撑，压入镜片时，第一筒体不会因为受力而发生形变，保证了镜头筒的定位稳定性，从而提高镜头筒的组装良率。
 附图说明
图1为本申请实施例的定位工装与镜头筒配合时的结构示意图；
图2为图1所示局部A的放大图；
图3为图1所示局部B的放大图。
 本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
需要说明，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果所述特定姿态发生改变时，则所述方向性指示也相应地随之改变。
另外，在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个所述特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
请参考图1和图2，本申请提供一种定位工装100，用于在组装镜头组件的过程中对镜头筒200进行定位，其中，镜头筒200包括第一筒体210、自第一筒体210的一端向远离光轴方向弯折延伸的阶梯结构230以及自所述阶梯结构230的远离光轴的一端向远离第一筒体210的方向弯折延伸的第二筒体220，该阶梯结构包括与所述镜头筒200的光轴相垂直且靠近第一筒体210的阶梯面222，第一筒体210包括远离阶梯面222的端面212，端面212与阶梯面222相平行。
定位工装100包括支撑体110，支撑体110的顶部开设有收容第一筒体210的容置槽120，沿平行于光轴的方向，所述容置槽120的深度小于所述阶梯面222和所述端面212之间的距离，也就是说，支撑体110的顶面112与阶梯面222之间设有一定的间隙，当第一筒体210放置于容置槽120内时，支撑体110的顶面112与阶梯面222平行，且支撑体110的顶面112正对阶梯面222。
需要往镜头筒200内组装镜片时，可将第一筒体210的端面212朝下，并将第一筒体210放置于容置槽120内，第一筒体210的端面212能够与容置槽120的槽底122相抵接，从而使第一筒体210得到较好的支撑，压入镜片时，第一筒体210不会因为受力而发生形变，保证了镜头筒200的定位稳定性，从而提高镜头筒200的组装良率。
进一步的，容置槽120的深度比所述阶梯面222和所述端面212之间的距离小5-10微米。如图3所示，当第一筒体210容置于容置槽120内时，支撑体110的顶面112与阶梯面222之间具有较小的间隙。该结构的设置既能够保证第一筒体210的端面212顺利地与容置槽120的槽底122相抵接，又能够避免第二筒体220在受力的过程中发生严重形变。
具体的，在本实施例中，容置槽120的深度比所述阶梯面222和所述端面212之间的距离小8微米。
支撑体110上还开设有吸气孔130，吸气孔130设置于容置槽的外侧且贯穿支撑体110，且吸气孔130的一端开口位于支撑体110的顶面112上，当第一筒体210放置在容置槽120内时，该开口正对阶梯面222设置。
定位工装100在对镜头筒200进行定位时，首先使第一筒体210的端面212与容置槽120的槽底122相抵接，然后在吸气孔130内通真空，对阶梯面222进行吸附，从而将镜头筒200整体固定在定位工装100上，防止镜头筒200在垂直于光轴的平面内进行晃动，保证镜头筒200的定位牢固性。前面所提到的支撑体110的顶面112与阶梯面222之间具有较小的间隙，也能够保证阶梯面222能够被牢固地吸附住。当镜头组件组装完成后，停止对吸气孔130内通真空，即可解除对镜头筒200的锁定，操作人员即可将组装完成的镜头组件从定位工装100上移走。从上述描述可知，本申请采用真空吸附的锁定方式实现定位工装100对镜头筒200的锁定，无需使用夹具等锁定元件，一方面能够使镜头筒200的锁定过程和解除锁定过程更简单，另一方面，该锁定方式不会对镜头筒200的表面有任何损伤。
可以理解的是，定位工装100还包括真空装置（图中未示），真空装置与吸气孔130相连通，真空装置启动时，吸气孔130内为真空状态，可对阶梯面222进行吸附；真空装置停止时，吸气孔130对阶梯面222的吸附作用就会解除。
在一实施例中，吸气孔130的数目为多个，多个吸气孔130围绕容置槽120间隔设置。在对镜头筒200进行定位时，多个吸气孔130可同时通真空，从而对阶梯面222上的多个位置同时进行吸附，可提高对阶梯面222的吸附强度，还能够保证镜头筒200的平衡。可以理解的是，多个吸气孔130可连接于同一真空装置，也可以分别连接不同的真空装置。
在另一实施例中，吸气孔130的数目为一个，吸气孔130为环形结构，且该吸气孔130围绕容置槽120设置。在该实施例中，阶梯面222在周向方向上都能被吸附到。
进一步的，定位工装100还包括安装体140，安装体140连接于支撑体110的底部，安装体140的外部尺寸大于支撑体110的外部尺寸，安装体140用于将定位工装100定位于其他设备上。
优选的，安装体140为中空的筒状结构，吸气孔130的另一端开口与安装体140的内部相连通。将安装体140设置为中空的筒状结构，一方面，能够减小定位工装100的整体重量，节约生产材料；另一方面，可将真空装置或者其他部件容纳在安装体140内，能够减小定位工装100的整体体积。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。

Claims (8)

  1. 一种定位工装，用于定位镜头筒，所述镜头筒包括第一筒体、自所述第一筒体的一端向远离光轴方向弯折延伸的阶梯结构以及自所述阶梯结构的远离所述光轴的一端向远离所述第一筒体的方向弯折延伸的第二筒体，所述阶梯结构包括与所述光轴相垂直且靠近所述第一筒体的阶梯面，所述第一筒体包括远离所述阶梯面的端面，其特征在于，所述定位工装包括支撑体，所述支撑体的顶部开设有收容所述第一筒体的容置槽，沿平行于光轴的方向，所述容置槽的深度小于所述阶梯面和所述端面之间的距离，当所述第一筒体放置于所述容置槽内时，所述支撑体的顶面正对所述阶梯面。
  2. 根据权利要求1所述的定位工装，其特征在于，所述支撑体上还开设有吸气孔，所述吸气孔设置于所述容置槽的外侧且贯穿所述支撑体，且所述吸气孔的一端开口位于所述支撑体的顶面上，当所述第一筒体放置于所述容置槽内时，所述开口正对所述阶梯面。
  3. 根据权利要求2所述的定位工装，其特征在于，所述吸气孔的数目为多个，多个所述吸气孔围绕所述容置槽间隔设置。
  4. 根据权利要求2所述的定位工装，其特征在于，所述吸气孔为环形结构，所述吸气孔围绕所述容置槽设置。
  5. 根据权利要求2所述的定位工装，其特征在于，所述定位工装还包括真空装置，所述吸气孔与所述真空装置相连通。
  6. 根据权利要求1所述的定位工装，其特征在于，所述容置槽的深度比所述阶梯面和所述端面之间的距离小5-10微米。
  7. 根据权利要求1所述的定位工装，其特征在于，所述定位工装还包括安装体，所述安装体连接于所述支撑体的底部，所述安装体的外部尺寸大于所述支撑体的外部尺寸。
  8. 根据权利要求7所述的定位工装，其特征在于，所述安装体为中空的筒状结构。
PCT/CN2019/093878 2019-06-28 2019-06-28 定位工装 WO2020258306A1 (zh)

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CN114025065A (zh) * 2021-11-01 2022-02-08 Oppo广东移动通信有限公司 镜头装饰组件及电子设备

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JP2008296342A (ja) * 2007-06-01 2008-12-11 Olympus Corp 把持装置、およびそれを用いた部品組立治具
CN205608274U (zh) * 2016-03-03 2016-09-28 宁波舜宇光电信息有限公司 集成马达的镜头和摄像模组及其制造治具
CN106873116A (zh) * 2017-04-06 2017-06-20 浙江舜宇光学有限公司 摄像镜头
CN206930817U (zh) * 2017-06-26 2018-01-26 歌尔科技有限公司 镜头组装治具

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JP2008296342A (ja) * 2007-06-01 2008-12-11 Olympus Corp 把持装置、およびそれを用いた部品組立治具
CN205608274U (zh) * 2016-03-03 2016-09-28 宁波舜宇光电信息有限公司 集成马达的镜头和摄像模组及其制造治具
CN106873116A (zh) * 2017-04-06 2017-06-20 浙江舜宇光学有限公司 摄像镜头
CN206930817U (zh) * 2017-06-26 2018-01-26 歌尔科技有限公司 镜头组装治具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114025065A (zh) * 2021-11-01 2022-02-08 Oppo广东移动通信有限公司 镜头装饰组件及电子设备
CN114025065B (zh) * 2021-11-01 2024-01-23 Oppo广东移动通信有限公司 镜头装饰组件及电子设备

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