WO2022252626A1 - 一种自动影像检测仪 - Google Patents

一种自动影像检测仪 Download PDF

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Publication number
WO2022252626A1
WO2022252626A1 PCT/CN2022/071749 CN2022071749W WO2022252626A1 WO 2022252626 A1 WO2022252626 A1 WO 2022252626A1 CN 2022071749 W CN2022071749 W CN 2022071749W WO 2022252626 A1 WO2022252626 A1 WO 2022252626A1
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pressing plate
swivel
automatic image
annular cavity
gantry
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PCT/CN2022/071749
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English (en)
French (fr)
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李丁西
陈勇吉
廖振昌
许若句
李聪
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江苏优直智能科技有限公司
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Publication of WO2022252626A1 publication Critical patent/WO2022252626A1/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30Supports specially adapted for an instrument; Supports specially adapted for a set of instruments

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  • the invention relates to the field of image measuring instruments, in particular to an automatic image detector.
  • Imager also known as image measuring instrument, image-type precision surveying instrument, optical measuring instrument, the existing imager equipment has good versatility, but due to the limitation of the plane geometric size of the measured parts, the efficiency of convenient measurement is not high. For this reason, there is an urgent need for an imager capable of solving the above problems.
  • the invention provides an automatic image detector, which can solve the problems pointed out in the background art.
  • An automatic image detector comprising a gantry frame, a workbench for carrying a workpiece to be detected, and an image measurement assembly installed on the gantry frame, and also includes a support for supporting the gantry frame and for driving the The drive mechanism for the gantry rotation;
  • An annular cavity capable of accommodating the driving mechanism is opened in the support;
  • the drive mechanism includes a swivel rotatably arranged in the annular cavity and a motor for driving the swivel to rotate;
  • the gantry is fixedly connected to the swivel;
  • a stabilizing mechanism for improving movement precision is also provided in the annular cavity.
  • the stabilizing mechanism includes two stabilizing groups arranged axially symmetrically.
  • the stabilizing group includes an upper pressing plate, a lower pressing plate and a spring assembly. Under the action of the spring assembly, the lower side of the upper pressing plate is in contact with the on the upper side of the lower platen;
  • Both the lower side of the upper platen and the upper side of the lower platen are provided with a limiting groove, and the depth of the limiting groove gradually increases from the center to both ends;
  • the swivel is provided with two centrally symmetrical connecting pieces, and when the swivel rotates, the connecting pieces can move between the upper pressing plate and the lower pressing plate.
  • the connecting piece includes a bracket arranged on the swivel and two rollers rotatably mounted on the bracket;
  • both the upper pressing plate and the lower pressing plate are semi-circular.
  • the ring is provided with a ring gear
  • the output shaft of the motor is equipped with a gear meshed with the ring gear
  • the beneficial effect of the present invention is: the present invention is provided with a drive mechanism, which replaces the screw drive in the prior art by means of circular rotation, greatly improving the moving speed and detection efficiency of the lens;
  • Fig. 1 is the image detector in the prior art
  • Fig. 2 is a structural representation of the present invention
  • Fig. 3 is the structural representation of drive mechanism of the present invention.
  • Fig. 4 is a sectional view of the present invention.
  • Fig. 5 is a partial enlarged view of A place of Fig. 4 of the present invention.
  • Fig. 6 is a structural schematic diagram of a connector of the present invention.
  • Fig. 7 is a schematic diagram of a partial structure of the stabilizing mechanism of the present invention.
  • an automatic image detection instrument provided by an embodiment of the present invention includes a gantry 2, a workbench 1 for carrying a workpiece to be detected, and an image measurement component installed on the gantry 2 3. It also includes a support 4 for supporting the gantry 2 and a driving mechanism for driving the gantry 2 to rotate;
  • An annular cavity capable of accommodating the drive mechanism is opened in the support 4;
  • the drive mechanism includes a swivel 5 rotatably arranged in the annular cavity and a motor 6 for driving the swivel 5 to rotate;
  • the drive mechanism can drive the image measurement assembly 3 on the gantry 2 to rotate.
  • the image measurement assembly 3 is a prior art, and it has the ability to move in the length direction and height direction of the gantry 2. This is an existing technology, so it will not be discussed here. repeat,
  • the driving mechanism can drive the gantry 2 to rotate, so as to meet the needs of quickly moving from one end of the larger object to be tested to the opposite end. Compared with the screw drive, the moving time is greatly reduced and the detection efficiency is improved. On this basis, The lens of the image measurement component 3 moves on the gantry 2, and can measure multiple positions of the object to be measured;
  • the gantry 2 is fixedly connected to the swivel 5;
  • a stabilizing mechanism for improving movement precision is also provided in the annular cavity
  • the stabilizing mechanism includes two stabilizing groups arranged axially symmetrically.
  • the stabilizing group includes an upper pressing plate 7, a lower pressing plate 8 and a spring assembly 9. Under the action of the spring assembly 9, the lower side of the upper pressing plate 7 is in contact with On the upper side of the lower platen 8;
  • Both the lower side of the upper pressing plate 7 and the upper side of the lower pressing plate 8 are provided with a limiting groove 10, and the depth of the limiting groove 10 gradually increases from the center to both ends;
  • the swivel 5 is provided with two centrally symmetrical connecting pieces 12, and when the swivel 5 rotates, the connecting pieces can move between the upper pressing plate 7 and the lower pressing plate 8;
  • the connector 12 includes a bracket arranged on the swivel 5 and two rollers 11 rotatably mounted on the bracket; the connector 12 in Figures 3 and 4 is only suggestive effect;
  • Both the upper pressing plate 7 and the lower pressing plate 8 are semi-circular;
  • a ring gear 13 is provided on the swivel 5 , and a gear 14 meshing with the ring gear 13 is mounted on the output shaft of the motor 6 .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

一种自动影像检测仪,包括龙门架(2)、工作台(1)、影像测量组件(3),支座(4)以及驱动机构;支座(4)内开设有能够容纳驱动机构的环形空腔;驱动机构包括可转动地设置在环形空腔内的转环(5)以及用于带动转环(5)转动的电机(6);环形空腔内还设有用于提高移动精度的稳定机构;驱动机构,通过圆周转动的方式替代现有技术中丝杆传动的方式,大大提高镜头的移动速度以及检测效率;稳定机构,能够降低转动惯性对移动位置精度的影响,从而保证检测的精准度。

Description

一种自动影像检测仪 技术领域
本发明涉及影像测量仪领域,特别涉及一种自动影像检测仪。
背景技术
影像仪,又称影像测量仪、影像式精密测绘仪、光学测量仪,现有的影像仪设备通用性较好,但因测量零件的平面几何尺寸局限性较大,便捷测量的效率不高,为此,急需一种能够解决上述问题的影像仪。
发明内容
本发明提供一种自动影像检测仪,可以解决背景技术中所指出的问题。
一种自动影像检测仪,包括龙门架、用于承载被检测工件的工作台以及安装在所述龙门架上的影像测量组件,还包括用于支撑所述龙门架的支座以及用于带动所述龙门架转动的驱动机构;
所述支座内开设有能够容纳所述驱动机构的环形空腔;
所述驱动机构包括可转动地设置在所述环形空腔内的转环以及用于带动所述转环转动的电机;
所述龙门架固定连接在所述转环上;
所述环形空腔内还设有用于提高移动精度的稳定机构。
较佳的,所述稳定机构包括轴对称设置的两个稳定组,所述稳定组包括上压板、下压板以及弹簧组件,在所述弹簧组件的作用下,所述上压板的下侧面抵触在所述下压板的上侧面上;
所述上压板的下侧面和所述下压板的上侧面均开设有一限位槽,所述限位槽的深度由中心向两端逐渐递增;
所述转环上设有中心对称的两个连接件,当所述转环转动时,所述连接件 能够移动至所述上压板和下压板之间。
较佳的,所述连接件包括设置在所述转环上的支架以及可转动地安装在所述支架上的两个滚轮;
当所述转环转动时,两个所述滚轮分别抵触在所述上压板和所述下压板上。
较佳的,所述上压板和所述下压板均为半圆环形。
较佳的,所述转环上设置有齿圈,所述电机的输出轴上安装有与所述齿圈啮合连接的齿轮。
与现有技术相比,本发明的有益效果是:本发明设有驱动机构,通过圆周转动的方式替代现有技术中丝杆传动的方式,大大提高镜头的移动速度以及检测效率;
还设有稳定机构,能够降低转动惯性对移动位置精度的影响,从而保证检测的精准度。
附图说明
图1为现有技术中的影像检测仪;
图2为本发明的结构示意图;
图3为本发明的驱动机构的结构示意图;
图4为本发明的剖视图;
图5为本发明的图4的A处局部放大图;
图6为本发明的连接件的结构示意图;
图7为本发明的稳定机构的局部结构示意图。
附图标记说明:
1、工作台,2、龙门架,3、影像测量组件,4、支座,5、转环,6、电机,7、上压板,8、下压板,9、弹簧组件,10、限位槽,11、滚轮,12、连接件,13、齿圈,14、齿轮。
具体实施方式
下面结合附图,对本发明的一个具体实施方式进行详细描述,但应当理解本发明的保护范围并不受具体实施方式的限制。
如图1至图7所示,本发明实施例提供的一种自动影像检测仪,包括龙门架2、用于承载被检测工件的工作台1以及安装在所述龙门架2上的影像测量组件3,还包括用于支撑所述龙门架2的支座4以及用于带动所述龙门架2转动的驱动机构;
如图1所示,现有技术中的影像检测仪多采用丝杆传动的方式来实现镜头的X、Y和Z轴方向上的移动,当待检测物件的尺寸过大时,镜头移动速度的时间影响这检测的效率,当镜头从物件的一端移动至相对的另一端时,采用丝杠传动的方式会导致检测效率低下,因此本发明采用如下驱动机构:
所述支座4内开设有能够容纳所述驱动机构的环形空腔;
所述驱动机构包括可转动地设置在所述环形空腔内的转环5以及用于带动所述转环5转动的电机6;
驱动机构能够带动龙门架2上的影像测量组件3转动,影像测量组件3为现有技术,其具备在龙门架2长度方向上和高度方向上移动的能力,此为现有技术,故不在此赘述,
驱动机构能够带动龙门架2转动,从而满足从较大待测物件的一端快速移动至相对的另一端的需求,较之丝杆传动大大降低了移动时间,提高了检测效率,在此基础上,影像测量组件3的镜头在龙门架2上移动,能够对待测物件的多个位置进行测量;
所述龙门架2固定连接在所述转环5上;
在电机6带动转环5转动的过程中产生的转动惯性会导致移动后的位置与预定位置略有偏差,为提高精度,消除误差,因此需要设计一克服惯性的稳定机构
所述环形空腔内还设有用于提高移动精度的稳定机构;
所述稳定机构包括轴对称设置的两个稳定组,所述稳定组包括上压板7、 下压板8以及弹簧组件9,在所述弹簧组件9的作用下,所述上压板7的下侧面抵触在所述下压板8的上侧面上;
所述上压板7的下侧面和所述下压板8的上侧面均开设有一限位槽10,所述限位槽10的深度由中心向两端逐渐递增;
所述转环5上设有中心对称的两个连接件12,当所述转环5转动时,所述连接件能够移动至所述上压板7和下压板8之间;
如图6所示,所述连接件12包括设置在所述转环5上的支架以及可转动地安装在所述支架上的两个滚轮11;图3和图4中的连接件12仅为示意作用;
当所述转环5转动时,两个所述滚轮11分别抵触在所述上压板7和所述下压板8上;
在弹簧组件9的作用下,上压板7和下压板8均抵触在滚轮11上,转环5转动的幅度越大,转动惯性越大,上压板7和下压板8施加在滚轮11上的力越大,从而能够克服惯性带来的移动误差,提高移动精度;
所述上压板7和所述下压板8均为半圆环形;
所述转环5上设置有齿圈13,所述电机6的输出轴上安装有与所述齿圈13啮合连接的齿轮14。
工作原理:当在对待测物件进行检测时,在驱动机构的作用下,龙门架2转动至待测点位置,在龙门架2转动的过程中,连接件12上的滚轮11移动至上压板7和下压板8之间,上压板7和下压板8提供与转动惯性方向相反的力,从而避免转动惯性对移动精度的影响,提高检测精度。
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神和基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。

Claims (5)

  1. 一种自动影像检测仪,包括龙门架、用于承载被检测工件的工作台以及安装在所述龙门架上的影像测量组件,其特征在于,还包括用于支撑所述龙门架的支座以及用于带动所述龙门架转动的驱动机构;
    所述支座内开设有能够容纳所述驱动机构的环形空腔;
    所述驱动机构包括可转动地设置在所述环形空腔内的转环以及用于带动所述转环转动的电机;
    所述龙门架固定连接在所述转环上;
    所述环形空腔内还设有用于提高移动精度的稳定机构。
  2. 如权利要求1所述的一种自动影像检测仪,其特征在于,所述稳定机构包括轴对称设置的两个稳定组,所述稳定组包括上压板、下压板以及弹簧组件,在所述弹簧组件的作用下,所述上压板的下侧面抵触在所述下压板的上侧面上;
    所述上压板的下侧面和所述下压板的上侧面均开设有一限位槽,所述限位槽的深度由中心向两端逐渐递增;
    所述转环上设有中心对称的两个连接件,当所述转环转动时,所述连接件能够移动至所述上压板和下压板之间。
  3. 如权利要求2所述的一种自动影像检测仪,其特征在于,所述连接件包括设置在所述转环上的支架以及可转动地安装在所述支架上的两个滚轮;
    当所述转环转动时,两个所述滚轮分别抵触在所述上压板和所述下压板上。
  4. 如权利要求2所述的一种自动影像检测仪,其特征在于,所述上压板和所述下压板均为半圆环形。
  5. 如权利要求1所述的一种自动影像检测仪,其特征在于,所述转环上设置有齿圈,所述电机的输出轴上安装有与所述齿圈啮合连接的齿轮。
PCT/CN2022/071749 2021-06-01 2022-01-13 一种自动影像检测仪 WO2022252626A1 (zh)

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