WO2019100880A1 - 孔壁厚度的测量装置 - Google Patents

孔壁厚度的测量装置 Download PDF

Info

Publication number
WO2019100880A1
WO2019100880A1 PCT/CN2018/110934 CN2018110934W WO2019100880A1 WO 2019100880 A1 WO2019100880 A1 WO 2019100880A1 CN 2018110934 W CN2018110934 W CN 2018110934W WO 2019100880 A1 WO2019100880 A1 WO 2019100880A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
hole wall
thickness
measuring rod
sleeve
Prior art date
Application number
PCT/CN2018/110934
Other languages
English (en)
French (fr)
Inventor
宋宏远
单文娟
闻捷
朱伟彬
Original Assignee
中国商用飞机有限责任公司
中国商用飞机有限责任公司上海飞机设计研究院
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 中国商用飞机有限责任公司, 中国商用飞机有限责任公司上海飞机设计研究院 filed Critical 中国商用飞机有限责任公司
Publication of WO2019100880A1 publication Critical patent/WO2019100880A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness

Definitions

  • the invention belongs to the field of manufacturing measurement, and in particular relates to a measuring device for the thickness of a hole wall.
  • the engineering generally accumulates according to the theoretical thickness of the multi-layer parts, and derives the thickness of the interlayer to determine the length of the fastener.
  • the result of such estimation is relatively accurate.
  • the actual interlayer thickness and theoretical calculation results may have large errors due to part manufacturing errors, paint layer thickness, and the like. Therefore, some engineering documents will allow the actual length of the fasteners to be lengthened or shortened according to the actual situation.
  • the worker usually uses a fastener to perform a test or a wall thickness measurement by a hook ruler.
  • the hook rule used in engineering is a scale ruler with a hook at the end. Because the hook is small, it can only hook a small position inside the hole wall, which is easy to shake, and because it is parallel to the hole. Wall surface readings, so the ideal reading angle is not easy to obtain, these will have a greater impact on the measurement results.
  • Another object of the present invention is to design a hole wall thickness measuring tool that facilitates reading.
  • the present invention provides a measuring device for the thickness of a hole wall, comprising a claw, a biasing spring, a measuring rod and a measuring rod sleeve, wherein
  • the measuring rod includes a measuring portion and an operating portion opposite to the measuring portion in the axial direction, at least a part of the measuring portion is a tapered section, and an actuating member is disposed at the operating portion;
  • the measuring rod sleeve is disposed outside the measuring rod, so that the measuring rod can be axially moved in the measuring rod sleeve through the actuating member, and the main scale is disposed on the outer circumference of the measuring rod sleeve;
  • the hook is provided with a first measuring surface that cooperates with the first side of the hole wall, and the hook is connected to the measuring rod sleeve by the biasing spring, the biasing spring makes the
  • the claw is biased radially inwardly to fit on the outer peripheral surface of the tapered section, and the hook can be correspondingly disposed from the rod sleeve according to the axial movement of the tapered section
  • the holes in the position are radially extended or retracted.
  • the number of the claws is 2 to 4, and is circumferentially arranged around the measuring portion.
  • the amount by which the claw is radially extended is such that the hook can be hooked when the hook is extended from the gauge sleeve The first side of the wall of the hole.
  • the amount by which the claw is radially retracted is set such that when the hook is retracted from the rod, each of the hooks is formed
  • the outer diameter is smaller than the aperture of the hole being measured.
  • the hook is disposed such that when the hook is retracted from the rod sleeve, the hook is located in the rod sleeve
  • the hook and the tapered section are provided with a thread, and the hook is in a threaded engagement relationship with the tapered section.
  • the operating portion of the measuring rod and the measuring rod sleeve are provided with a thread, and the measuring rod and the measuring rod sleeve are threaded. Engagement relationship.
  • the bias spring is a torsion spring.
  • a preferred embodiment of the apparatus for measuring the thickness of a hole wall according to the present invention further comprising a reading slider, the reading slider being disposed on the measuring rod sleeve and capable of axially sliding on the measuring rod sleeve, and The reading slide is provided on the end adjacent the measuring portion with a second measuring surface that cooperates with the second side of the bore wall.
  • the measuring rod sleeve is provided with a chute
  • the reading slider is provided with a structure complementary to the sliding groove to limit the reading slider Rotating in the circumferential direction on the measuring rod sleeve.
  • the reading slider is provided with a reading window at which a vernier scale capable of matching the reading of the main scale is provided.
  • the reading slider is provided with a fastening screw for fixing the reading slider to the measuring rod sleeve.
  • the actuating member is a handle fixed to the operating portion, the handle being moved together with the measuring rod.
  • the present invention adopts a retractable claw, which can pinch the tested part well, and fully ensures the stability of the measurement.
  • the present invention also uses a reading slider, and uses the measurement reading method matched with the main scale and the vernier scale to ensure the measurement accuracy and facilitate reading.
  • the invention has the advantages of simple and convenient structure, easy operation, high measurement precision, and can be well used for engineering measurement of hole wall thickness in the stages of manufacturing, acceptance and the like.
  • Figure 1 is a perspective view of a preferred embodiment of a device for measuring the thickness of a hole wall according to the present invention
  • Figure 2 is a front elevational view showing a preferred embodiment of a device for measuring the thickness of a hole wall according to the present invention
  • Figure 3 is a rotated cross-sectional view of a preferred embodiment of a device for measuring the thickness of a hole wall according to the present invention
  • Figure 4 is a partially enlarged, rotational, cross-sectional view showing a preferred embodiment of a device for measuring the thickness of a hole wall according to the present invention
  • Figure 5A is a front elevational view of a measuring rod of a preferred embodiment of a device for measuring the thickness of a hole wall according to the present invention
  • Figure 5B is a front elevational view of a measuring rod of another preferred embodiment of the measuring device for the wall thickness of the hole according to the present invention.
  • Figure 5C is a front elevational view of a measuring rod of still another preferred embodiment of the apparatus for measuring the thickness of a hole wall according to the present invention.
  • Figure 6A is an enlarged view of a region 6A in Figure 5A;
  • Figure 6B is an enlarged view of a region 6B in Figure 5B;
  • Figure 6C is an enlarged view of a region 6C in Figure 5C;
  • Figure 7 is a cross-sectional view taken along line A-A of Figure 4.
  • Figure 8A is an enlarged, rotational, cross-sectional view showing the cooperation between a tapered section and a claw of a preferred embodiment of a device for measuring the thickness of a hole wall according to the present invention
  • Figure 8B is an enlarged, rotational, cross-sectional view showing the engagement between the tapered section and the hook of another preferred embodiment of the apparatus for measuring the thickness of the wall of the hole according to the present invention
  • Fig. 9 is a sectional view showing the state of use of a preferred embodiment of the apparatus for measuring the thickness of a hole wall according to the present invention.
  • the measuring device 100 includes at least a claw 110, a biasing spring 120, a measuring rod 130 and a measuring rod sleeve 140.
  • the measuring rod 130 includes a measuring portion 131 and an operating portion 132 opposed to the measuring portion 131 in the axial direction.
  • the tapered section 133 herein refers to a section having different radial dimensions in the axial direction.
  • the radial dimensional change of the tapered section 133 can be linear or curved.
  • the radial dimension of the tapered section 133 may monotonically decrease in the direction from the measuring portion 131 to the operating portion 132 as shown in the drawing, and the radial dimension of the tapered section 133 also proceeds from the measuring portion 131 to the operating portion 132.
  • the direction increases monotonically, or other changes are applied as needed.
  • an actuating member 134 is provided at the operating portion 132.
  • the actuating member 134 may be directly connected to the operating portion 132 or may be indirectly applied to the operating portion 132 by other medium such as electromagnetic force.
  • the actuator 134 can be a handle that is secured to the operating portion 132 that moves with the measuring rod 130.
  • the shape of the handle is convenient for grasping, for example, having a larger diameter than the measuring rod 130 and having a higher surface roughness, and can be connected to the measurement, for example, by a threaded fit or an interference fit.
  • the rod 130 is at the end on the side of the operating portion 132, enabling the user to better manipulate the measuring rod 130 by gripping the handle.
  • the measuring rod sleeve 140 is disposed outside the measuring rod 130 such that the measuring rod 130 can be axially moved within the measuring rod sleeve 140 by the actuating member 134, and the main scale 142 is disposed on the outer circumference of the measuring rod sleeve 140.
  • the operating portion 132 of the measuring rod 130 and the measuring rod sleeve 140 are provided with threads, and the measuring rod 130 and the measuring rod sleeve 140 are in a threaded engagement relationship. The presence of the threaded engagement relationship results in a higher accuracy and stability of movement between the measuring rod 130 and the gauge sleeve 140.
  • the measuring rod 130 is rotated by the actuating member 134 to realize the axial movement of the measuring rod 130 within the measuring rod sleeve 140. More preferably, as shown in FIGS. 5B and 6B, wherein the threads on the measuring rod 130 are preferably provided at both ends of the operating portion 132 (the threaded portion is indicated by reference numeral T1 in the drawing).
  • the hook 110 is provided with a first measuring surface 111 that cooperates with the first side of the hole wall, and the hook 110 is connected to the measuring rod sleeve 140 through the biasing spring 120 .
  • the biasing spring 120 biases the claw 110 radially inward to fit on the outer peripheral surface of the tapered section 133.
  • the biasing spring 120 is a torsion spring.
  • the number of the claws 110 may be 2 to 4 and arranged circumferentially around the measuring portion 131.
  • the three claws 110 may be evenly distributed by 120°.
  • each of the rotational cross-sectional views in the drawing is taken along the section B-B in Fig. 7, and the section B-B can be passed through the central axis of the measuring rod 130 and the hooks 110.
  • Each of the 120° intersecting cut planes is formed.
  • the aforementioned rotational cross-sectional view may be taken along a section plane intersecting 360°/n through any two of the central axes of the measuring rod 130 and the claws 110. .
  • the pawl 110 can radially project or retract from a hole provided at a corresponding position of the gauge sleeve 140 as the tapered section 133 moves axially.
  • the amount by which the pawl 110 projects radially may be such that when the pawl 110 extends from the gauge sleeve 140, the pawl 110 can hook the first side of the bore wall.
  • hook is understood to mean that the first measuring surface 111 of the hook 110 cooperates with the first side of the wall of the hole, or that the portion of the measuring device 100 that projects into the hole is hooked as a whole. On the first side of the wall.
  • the amount by which the pawl 110 is radially retracted can be set such that when the pawl 110 is retracted from the gauge sleeve 140, each of the pawls 110 forms an outer diameter that is smaller than the aperture of the bore being measured.
  • the pawl 110 can also be configured such that when the pawl 110 is retracted from the gauge sleeve 140, the pawl 110 is located within the gauge sleeve 140.
  • the measuring device 100 is used to measure the wall thickness of a hole having a hole diameter of about 6 mm
  • the claw 110 may protrude by an amount of 1-2 mm.
  • factors such as the outer dimensions of the measuring device 100, the aperture of the measured hole, the measuring environment and the like according to actual needs, thereby selecting a suitable amount of protrusion of the claw 110.
  • the claw 110 and the tapered section 133 may be provided with threads (represented by reference numeral T2)
  • the threaded section is such that the hook 110 and the tapered section 133 are in a threaded engagement relationship.
  • the tapered section of the measuring rod 130 that the claw 110 contacts The cross-section of 133 is increased, the claw 110 contacting the tapered section 133 is radially extended, and at the same time, the biasing spring 120 generates a force to ensure that the hook 110 and the tapered section 133 of the measuring rod 130 are in close contact;
  • the measuring rod 130 is rotated (in this case, the measuring rod 130 is moved to the right in FIG. 9)
  • the section of the tapered section 133 of the measuring rod 130 that the claw 110 contacts is reduced, under the bias of the biasing spring 120.
  • the claw 110 that is in contact with the tapered section 133 is radially retracted.
  • the measuring device 100 can further include a reading slider 150 disposed on the measuring rod sleeve 140 and axially slidable on the measuring rod sleeve 140, and The reading slider 150 is provided on the end close to the measuring portion with a second measuring surface 151 that cooperates with the second side of the hole wall.
  • the reading slider 150 can be provided with a reading window with a vernier scale 152 that can be read in conjunction with the main scale 142. The reading of the main scale 142 and the vernier scale 152 not only facilitates reading but also improves reading accuracy.
  • the reading slider 150 is provided with a fastening screw 153 for securing the reading slider 150 to the gauge sleeve 140.
  • the measuring rod sleeve 140 may be provided with a sliding groove 141, and the reading slider 150 may be provided with a structure complementary to the sliding groove 141 to limit the reading.
  • the slider 150 rotates circumferentially on the gauge sleeve 140.
  • the reading slider 150 will not be able to rotate circumferentially on the gauge sleeve 140.
  • the actuator 134 is used to control the movement of the measuring rod 130, the gauge sleeve 140 does not rotate with the actuator 134.
  • the length of the chute 141 determines the range of motion of the reading slider 150.
  • the cover rod 140 is provided with a cover plate 160 near the end of the measuring portion 131.
  • the following describes a method of measuring the thickness of the hole wall using the above-described measuring device 100, including the following steps: before the measurement, the retaining claw 110 is in the stowed state, so that the measuring rod sleeve 140 can freely enter and exit the hole to be tested.
  • the method further includes the step of projecting one end of the measuring device 100 close to the measuring portion 131 into the hole.
  • the method further includes the steps of axially moving the measuring rod 130, and the movement of the tapered section in the axial direction causes the claw 110 to extend or retract in the radial direction.
  • the measurement rod 130 is rotated within the gauge sleeve 140 to effect axial movement of the measurement rod 130.
  • step of reading when the hook 110 is extended to a certain position to hook the first side of the wall of the hole is also included.
  • the method may further comprise the steps of: zeroing the measuring device 100 prior to the measurement, and moving the reading slider 150 to cause the second measuring surface 151 when the hook 110 is extended to a certain position to hook the first side of the hole wall. The second side of the hole wall is caught to take a reading.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

孔壁厚度的测量装置，包括勾爪、偏置弹簧、测量杆和量杆套，测量杆包括测量部和操作部，测量部包括锥形段，在操作部处有致动件；量杆套设置在测量杆外部，量杆套上设置有主刻度；勾爪具有测量面，勾爪通过偏置弹簧与量杆套连接，偏置弹簧使勾爪径向朝内偏置以贴合在锥形段上，勾爪能随着锥形段的轴向运动而从设置于量杆套相应位置上的孔径向伸出或缩进。本发明的测量装置能够稳定勾住孔壁内侧，便于测量。

Description

孔壁厚度的测量装置 技术领域
本发明属于制造测量领域，具体涉及一种孔壁厚度的测量装置。
背景技术
在机械制造领域，经常需要在机体结构上制孔，并安装铆钉、螺栓等紧固件。孔壁厚度和紧固件长度是匹配的，因此孔壁厚度直接影响与之配合的紧固件的使用效果。需要准确得到孔壁厚度，才能保证选择的紧固件长度能够满足设计要求，实现正常的紧固件功能。因此，孔壁厚度的工程测量对制造、工程处置，以及后续结构设计优化都具有重要意义。
目前，工程上一般根据多层零件的理论厚度进行累加，推导得到夹层厚度，进而确定紧固件长度。对于零件层数较少、制造误差较小的情况下，这样的估算所得的结果是相对准确的。但是对于层数较多的情况下，由于零件制造误差、漆层厚度等，实际夹层厚度和理论计算结果可能会有较大误差。因此部分工程文件会允许实际操作中根据实际情况加长或缩短一级紧固件长度。为了获得孔壁厚度，工人通常是使用紧固件进行试装或者通过勾尺进行孔壁厚度测量。目前工程上用的勾尺是端部有一个勾状物的带刻度尺子，由于勾状物较小，只能勾住孔壁内侧的一处较小位置，易晃动，并且由于要平行于孔壁表面读数，故而理想的读数角度不易获得，这些都会对测量结果产生较大影响。
发明内容
本发明的目的在于设计一种能够稳定勾住孔壁内侧的孔壁厚度测量工具。
本发明的另一目的在于设计一种便于读数的孔壁厚度测量工具。
为此，本发明提供了一种孔壁厚度的测量装置，包括勾爪、偏置弹簧、 测量杆和量杆套，其中，
所述测量杆轴向上包括测量部和与所述测量部相对的操作部，所述测量部的至少一部分为锥形段，在所述操作部处设置有致动件；
所述量杆套设置在所述测量杆外部，使得所述测量杆能通过所述致动件在所述量杆套内轴向运动，且所述量杆套外周上设置有主刻度；
所述勾爪上设置有与所述孔壁的第一侧配合的第一测量面，且所述勾爪通过所述偏置弹簧与所述量杆套连接，所述偏置弹簧使所述勾爪径向朝内偏置以贴合在所述锥形段的外周面上，并且，所述勾爪能随着所述锥形段的轴向运动而从设置于所述量杆套相应位置上的孔径向伸出或缩进。
根据本发明的孔壁厚度的测量装置的优选实施例，所述勾爪的数量为2至4个，且围绕所述测量部周向布置。
根据本发明的孔壁厚度的测量装置的优选实施例，所述勾爪径向伸出的量设置为使得，当所述勾爪从所述量杆套伸出时，所述勾爪能够勾住所述孔壁的所述第一侧。
根据本发明的孔壁厚度的测量装置的优选实施例，所述勾爪径向缩进的量设置为使得，当所述勾爪从所述量杆套缩进时，各所述勾爪形成的外径小于所测孔的孔径。
根据本发明的孔壁厚度的测量装置的优选实施例，所述勾爪设置成，当所述勾爪从所述量杆套缩进时，所述勾爪位于所述量杆套内
根据本发明的孔壁厚度的测量装置的优选实施例，所述勾爪和所述锥形段上设置有螺纹，且所述勾爪与所述锥形段之间为螺纹啮合关系。
根据本发明的孔壁厚度的测量装置的优选实施例，所述测量杆的所述操作部和所述量杆套上设置有螺纹，且所述测量杆与所述量杆套之间为螺纹啮合关系。
根据本发明的孔壁厚度的测量装置的优选实施例，所述偏置弹簧是扭簧。
根据本发明的孔壁厚度的测量装置的优选实施例，还包括读数滑件，所述读数滑件设置在所述量杆套上且能在所述量杆套上轴向滑动，并且，所述读数滑件在靠近所述测量部的端部上设置有与所述孔壁的第二侧配合的 第二测量面。
根据本发明的孔壁厚度的测量装置的优选实施例，所述量杆套上设有滑槽，所述读数滑件上设置有与所述滑槽互补的结构，以限制所述读数滑件在所述量杆套上的周向转动。
根据本发明的孔壁厚度的测量装置的优选实施例，所述读数滑件上开有读数窗口，在所述读数窗口处设有能与所述主刻度配合读数的游标刻度。
根据本发明的孔壁厚度的测量装置的优选实施例，所述读数滑件上设置有用于将所述读数滑件固定在所述量杆套上的紧固螺钉。
根据本发明的孔壁厚度的测量装置的优选实施例，所述致动件是固定于所述操作部上的把手，所述把手与所述测量杆一起运动。
由上可知，本发明采用了可伸缩勾爪，能够很好地夹住被测零件，充分保证了测量的稳定性。另外，本发明还采用了读数滑件，并使用主刻度和游标刻度相配合的测量读数方式，可以很好地保证测量精度，且便于读数。本发明结构简单方便、易于操作，测量精度高，能够很好地用于制造、验收等阶段孔壁厚度的工程测量。
附图说明
图1为根据本发明的孔壁厚度的测量装置的优选的实施例的立体示意图；
图2为根据本发明的孔壁厚度的测量装置的优选的实施例的正视示意图；
图3为根据本发明的孔壁厚度的测量装置的优选的实施例的旋转剖视图；
图4为根据本发明的孔壁厚度的测量装置的优选的实施例的局部放大的旋转剖视图；
图5A为根据本发明的孔壁厚度的测量装置的优选的实施例的测量杆的正视图；
图5B为根据本发明的孔壁厚度的测量装置的另一优选的实施例的测量杆的正视图；
图5C为根据本发明的孔壁厚度的测量装置的又一优选的实施例的测量杆的正视图；
图6A为图5A中的区域6A的放大图；
图6B为图5B中的区域6B的放大图；
图6C为图5C中的区域6C的放大图；
图7为图4中沿线A－A得到的剖面图；
图8A为根据本发明的孔壁厚度的测量装置的优选实施例的锥形段与勾爪之间配合的放大的旋转剖视图；
图8B为根据本发明的孔壁厚度的测量装置的另一优选实施例的的锥形段与勾爪之间配合的放大的旋转剖视图；
图9根据本发明的孔壁厚度的测量装置的优选的实施例的使用状态的旋转剖视图。
附图标记列表
100  测量装置
110  勾爪
111  第一测量面
120  偏置弹簧
130  测量杆
131  测量部
132  操作部
133  锥形段
134  致动件
140  量杆套
141  滑槽
142  主刻度
150  读数滑件
151  第二测量面
152  游标刻度
153  紧固螺钉
160  盖板
T1、T2  螺纹段
具体实施方式
下面结合附图和实施例对本发明作进一步详细的说明，但并不作为对本发明做任何限制的依据。
图1至图3示出了根据本发明的优选实施例的孔壁厚度的测量装置100，测量装置100至少包括勾爪110、偏置弹簧120、测量杆130和量杆套140。
如图3和图4中清楚地示出的，测量杆130轴向上包括测量部131和与测量部131相对的操作部132。
参见图4，其中，测量部131的至少一部分为锥形段133。要注意的是，此处的锥形段133是指在轴向上具有不同径向尺寸的部段。锥形段133的径向尺寸变化可以是线性的，也可成曲线变化。此外，锥形段133的径向尺寸可如图中所示沿从测量部131至操作部132的方向单调减小，锥形段133的径向尺寸还沿从测量部131至操作部132的方向单调增大，或根据需要采用其他的变化规律。
参见图1至图3，其中，在操作部132处设置有致动件134。致动件134可直接与操作部132连接或可通过电磁力等其他介质间接作用于操作部132上。在优选的实施例中，致动件134可以是固定于操作部132上的把手，把手与测量杆130一起运动。如图3中所示，把手的外形是便于抓握的，例如具有比测量杆130更大的直径并具有较高的表面粗糙度，且可例如通过螺纹配合或过盈配合等方式连接至测量杆130在操作部132一侧的端部处，使得使用者能够通过握持把手而更好地操纵测量杆130。
参见图3和图4，量杆套140设置在测量杆130外部，使得测量杆130能通过致动件134在量杆套140内轴向运动，且量杆套140外周上设置有主刻度142。在优选的实施例中，测量杆130的操作部132和量杆套140上设置有螺纹，且测量杆130与量杆套140之间为螺纹啮合关系。螺纹啮合关系的存在使得测量杆130与量杆套140之间的运动精度更高且更稳定。 此时，通过致动件134使测量杆130转动，而实现测量杆130在量杆套140内轴向运动。更优选地，如图5B和图6B中所示，其中，测量杆130上的螺纹优选地设置在操作部132的两端处(图中用附图标记T1表示该螺纹段)。
如图4、图7至图9中所示，勾爪110上设置有与孔壁的第一侧配合的第一测量面111，且勾爪110通过偏置弹簧120与量杆套140连接，偏置弹簧120使勾爪110径向朝内偏置以贴合在锥形段133的外周面上。优选地，偏置弹簧120是扭簧。
在优选的实施例中，勾爪110的数量可为2至4个，且围绕测量部131周向布置。例如，如图7中所示的情形下，3个勾爪110之间可相隔120°均匀分布。由此，在3个勾爪110的情形中，附图中的各旋转剖视图沿图7中的剖面B－B剖得，剖面B－B可由通过测量杆130的中心轴线和勾爪110的两个成120°相交的剖切面构成。类似地，本领域技术人员能够理解，在n个勾爪的情形中，前述旋转剖视图可沿通过测量杆130的中心轴线和勾爪110的任两个成360°/n相交的剖切面剖得。
勾爪110能随着锥形段133的轴向运动而从设置于量杆套140相应位置上的孔径向伸出或缩进。在优选的实施例中，勾爪110径向伸出的量可设置为使得，当勾爪110从量杆套140伸出时，勾爪110能够勾住孔壁的第一侧。应当理解，在本文中，“勾住”应理解为勾爪110的第一测量面111与孔壁的第一侧配合，或是测量装置100伸入孔内的部分作为一个整体勾在了孔壁的第一侧上。在优选的实施例中，勾爪110径向缩进的量可设置为使得，当勾爪110从量杆套140缩进时，各勾爪110形成的外径小于所测孔的孔径。在更优选的实施例中，还可将勾爪110设置成，当勾爪110从量杆套140缩进时，勾爪110位于量杆套140内。为此，例如，当测量装置100用于测量孔径约6mm左右的孔的孔壁厚度时，勾爪110伸出的量可为1－2mm。本领域技术人员还可根据实际需要，考虑例如测量装置100的外尺寸、所测孔的孔径、测量环境等因素，从而选择勾爪110的合适的伸出量。
在优选的实施例中，特别是在测量杆130与量杆套140之间为螺纹啮 合关系的情形中，勾爪110和锥形段133上可设置有螺纹(图中用附图标记T2表示该螺纹段)，从而使得勾爪110与锥形段133之间为螺纹啮合关系。例如，在附图中所示实施例的情形下，当正向转动测量杆130(此时，测量杆130向图9中左侧运动)时，勾爪110接触的测量杆130的锥形段133的截面增大，与锥形段133接触的勾爪110径向伸出，且同时偏置弹簧120会产生作用力保证勾爪110和测量杆130的锥形段133紧密接触；而当反向转动测量杆130(此时，测量杆130向图9中右侧运动)时，勾爪110接触的测量杆130的锥形段133的截面减小，在偏置弹簧120的偏置作用下，与锥形段133接触的勾爪110径向缩进。
参见图1至图4，在优选的实施例中，测量装置100还可包括读数滑件150，读数滑件150设置在量杆套140上且能在量杆套140上轴向滑动，并且，读数滑件150在靠近测量部的端部上设置有与孔壁的第二侧配合的第二测量面151。在优选的实施例中，读数滑件150上可开有读数窗口，在读数窗口处设有能与主刻度142配合读数的游标刻度152。通过主刻度142和游标刻度152相配合的读数方式，不仅可以便于读数，还可以提高读数精度。在优选的实施例中，读数滑件150上设置有用于将读数滑件150固定在量杆套140上的紧固螺钉153。
在优选的实施例中，如图1和图2中所示，量杆套140上可设有滑槽141，而在读数滑件150上可设置有与滑槽141互补的结构，以限制读数滑件150在量杆套140上的周向转动。例如，当滑槽141沿量杆套140呈直线设置时，读数滑件150将不能在量杆套140上周向转动。这样一来，在使用致动件134来控制测量杆130的运动时，量杆套140不会跟随致动件134一起转动。而滑槽141的长度则可决定读数滑件150的运动范围。
此外，如图1至图4中所示，量杆套140靠近测量部131的端部处设置有盖板160。
以下描述使用上述测量装置100来测量孔壁厚度的方法，包括以下步骤：测量前，保持勾爪110处于收起状态，使量杆套140能自由进出待测的孔。
还包括以下步骤：测量时，将测量装置100靠近测量部131的一端伸 入孔中。
还包括以下步骤：使测量杆130轴向运动，锥形段在轴向上的运动会带动勾爪110在径向上伸出或缩进。在优选的实施例中，使测量杆130在量杆套140内转动而实现测量杆130的轴向运动。
还包括以下步骤：在勾爪110伸出到一定位置勾住孔壁的第一侧时，进行读数。
该方法还可包括以下步骤：在测量前对测量装置100进行校零，在勾爪110伸出到一定位置勾住孔壁的第一侧时，移动读数滑件150，使第二测量面151卡住孔壁的第二侧，从而进行读数。
还可包括以下步骤：得到读数后，利用紧固螺钉153固定读数。
还可包括以下步骤：根据测量环境选择直接在测量状态下读数，或使测量杆130反向运动而将勾爪110缩进后将测量装置100取下后读数。
以上结合具体的优选实施例对本发明的构思作了详细说明，然而对于本领域普通技术人员而言，在本发明构思范围内的进一步的修改和变形将会不言自明，这些修改和变形都落于所附权利要求书的保护范围内。

Claims (13)

  1. 一种孔壁厚度的测量装置(100)，包括勾爪(110)、偏置弹簧(120)、测量杆(130)和量杆套(140)，其中，
    所述测量杆(130)轴向上包括测量部(131)和与所述测量部(131)相对的操作部(132)，所述测量部(131)的至少一部分为锥形段(133)，在所述操作部(132)处设置有致动件(134)；
    所述量杆套(140)设置在所述测量杆(130)外部，使得所述测量杆(130)能通过所述致动件(134)在所述量杆套(140)内轴向运动，且所述量杆套(140)外周上设置有主刻度(142)；
    所述勾爪(110)上设置有与所述孔壁的第一侧配合的第一测量面(111)，且所述勾爪(110)通过所述偏置弹簧(120)与所述量杆套(140)连接，所述偏置弹簧(120)使所述勾爪(110)径向朝内偏置以贴合在所述锥形段(133)的外周面上，并且，所述勾爪(110)能随着所述锥形段(133)的轴向运动而从设置于所述量杆套(140)相应位置上的孔径向伸出或缩进。
  2. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    所述勾爪(110)的数量为2至4个，且围绕所述测量部(131)周向布置。
  3. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    所述勾爪(110)径向伸出的量设置为使得，当所述勾爪(110)从所述量杆套(140)伸出时，所述勾爪(110)能够勾住所述孔壁的所述第一侧。
  4. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    所述勾爪(110)径向缩进的量设置为使得，当所述勾爪(110)从所述量杆套(140)缩进时，各所述勾爪(110)形成的外径小于所测孔的孔径。
  5. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    所述勾爪(110)设置成，当所述勾爪(110)从所述量杆套(140)缩 进时，所述勾爪(110)位于所述量杆套(140)内。
  6. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    所述勾爪(110)和所述锥形段(133)上设置有螺纹，且所述勾爪(110)与所述锥形段(133)之间为螺纹啮合关系。
  7. 根据权利要求6所述的孔壁厚度的测量装置(100)，其特征在于，
    所述测量杆(130)的所述操作部(132)和所述量杆套(140)上设置有螺纹，且所述测量杆(130)与所述量杆套(140)之间为螺纹啮合关系。
  8. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    所述偏置弹簧(120)是扭簧。
  9. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    还包括读数滑件(150)，所述读数滑件(150)设置在所述量杆套(140)上且能在所述量杆套(140)上轴向滑动，并且，所述读数滑件(150)在靠近所述测量部的端部上设置有与所述孔壁的第二侧配合的第二测量面(151)。
  10. 根据权利要求9所述的孔壁厚度的测量装置(100)，其特征在于，
    所述量杆套(140)上设有滑槽(141)，所述读数滑件(150)上设置有与所述滑槽(141)互补的结构，以限制所述读数滑件(150)在所述量杆套(140)上的周向转动。
  11. 根据权利要求9所述的孔壁厚度的测量装置(100)，其特征在于，
    所述读数滑件(150)上开有读数窗口，在所述读数窗口处设有能与所述主刻度(142)配合读数的游标刻度(152)。
  12. 根据权利要求9所述的孔壁厚度的测量装置(100)，其特征在于，
    所述读数滑件(150)上设置有用于将所述读数滑件(150)固定在所述量杆套(140)上的紧固螺钉(153)。
  13. 根据权利要求1所述的孔壁厚度的测量装置(100)，其特征在于，
    所述致动件(134)是固定于所述操作部(132)上的把手，所述把手与所述测量杆(130)一起运动。
PCT/CN2018/110934 2017-11-23 2018-10-19 孔壁厚度的测量装置 WO2019100880A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711183100.2A CN108007314B (zh) 2017-11-23 2017-11-23 孔壁厚度的测量装置
CN201711183100.2 2017-11-23

Publications (1)

Publication Number Publication Date
WO2019100880A1 true WO2019100880A1 (zh) 2019-05-31

Family

ID=62053617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/110934 WO2019100880A1 (zh) 2017-11-23 2018-10-19 孔壁厚度的测量装置

Country Status (2)

Country Link
CN (1) CN108007314B (zh)
WO (1) WO2019100880A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108007314B (zh) * 2017-11-23 2019-07-05 中国商用飞机有限责任公司 孔壁厚度的测量装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245270A (zh) * 2013-05-20 2013-08-14 山东太古飞机工程有限公司 飞机孔壁厚度测量尺
CN203274639U (zh) * 2013-05-20 2013-11-06 山东太古飞机工程有限公司 飞机孔壁厚度测量尺
CN108007314A (zh) * 2017-11-23 2018-05-08 中国商用飞机有限责任公司 孔壁厚度的测量装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245270A (zh) * 2013-05-20 2013-08-14 山东太古飞机工程有限公司 飞机孔壁厚度测量尺
CN203274639U (zh) * 2013-05-20 2013-11-06 山东太古飞机工程有限公司 飞机孔壁厚度测量尺
CN108007314A (zh) * 2017-11-23 2018-05-08 中国商用飞机有限责任公司 孔壁厚度的测量装置

Also Published As

Publication number Publication date
CN108007314A (zh) 2018-05-08
CN108007314B (zh) 2019-07-05

Similar Documents

Publication Publication Date Title
TWI486553B (zh) 檢測裝置
EP2146180B1 (en) Inside diameter measuring tool
CN107816928B (zh) 一种深孔直径及深度检测工具
AU2012292861B2 (en) Internal thread micrometer
WO2019100880A1 (zh) 孔壁厚度的测量装置
JP2006201145A (ja) ネジ穴測定具
US2625585A (en) Magnetic measuring gauge
EP3702721B1 (en) Plug gauge and associated system and method for taking multiple simultaneous diametric measurements
US5276971A (en) Thread gauge for tapered threads
US9587926B2 (en) Device for measuring airfoil spacing
EP2131140B1 (en) Micrometer
US7913414B2 (en) Nut plate grip gage
CN102914237A (zh) 记忆内卡钳
CN202074898U (zh) 多用数显内径千分尺
US5105554A (en) Instrument for measuring an object's dimensions
US2894331A (en) Pneumatic grip gauge
CN102109307A (zh) 多用数显内径千分尺
CN108775847A (zh) 一种测量杆类零件长度的检具
CN209197646U (zh) 一种用于测量中心距的测量装置
US2873533A (en) Inside diameter comparator
CN109141187B (zh) 小孔径测量工具
US1943638A (en) Micrometer gauge
CN209431985U (zh) 游标卡尺
US2134516A (en) Gauge
CN113237401A (zh) 工具尺

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18880942

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 21/08/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 18880942

Country of ref document: EP

Kind code of ref document: A1