CN113670214A - Device for measuring inner diameter of coupling through hole - Google Patents
Device for measuring inner diameter of coupling through hole Download PDFInfo
- Publication number
- CN113670214A CN113670214A CN202110747432.9A CN202110747432A CN113670214A CN 113670214 A CN113670214 A CN 113670214A CN 202110747432 A CN202110747432 A CN 202110747432A CN 113670214 A CN113670214 A CN 113670214A
- Authority
- CN
- China
- Prior art keywords
- measuring
- coupling
- hole
- bracket
- probe
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
Abstract
The invention discloses a device for measuring the inner diameter of a coupling through hole, which comprises a laser ranging probe, a measuring bracket, a digital display screen, a start button, a reset button, a USB charging port and a support rod, wherein the digital display screen, the start button, the reset button and the laser ranging probe form a high-precision laser ranging system, the start button is pressed outside a coupling, namely, the sum of the vertical distances between the probe and the upper inner surface and the lower inner surface of the coupling through hole can be detected by controlling the laser ranging probe, and then the inner diameter of the coupling through hole can be obtained by adding the height of the laser ranging probe. The device provided by the invention is convenient to use, economic and efficient, and particularly solves the technical problems of small diameter, difficulty in operation and inaccurate reading of the small-size tubing coupling, thereby avoiding the problems of inaccuracy and inconvenience in manual measurement and improving the production detection efficiency.
Description
Technical Field
The invention belongs to the technical field of a device for measuring the diameter of a through hole in a special thread, particularly relates to a device for measuring the inner diameter of a coupling through hole, and particularly relates to a device for measuring the inner diameter of a special thread coupling through hole machined by a numerical control threading machine.
Background
At present, the measuring jaw of the conventional vernier caliper cannot be detected because the diameter of the inner through hole (such as phi d1 in FIG. 1) of the special threaded coupling is positioned in the middle of the coupling. At present the on-site measurement mainly adopts inside micrometer to measure, when oil pipe special thread coupling detects, because the internal diameter is less, can cause the staff to get into the inside micrometer of using of coupling through-hole and measure the operation degree of difficulty big, and can't guarantee the perpendicular of inside micrometer and axis when measuring, thereby can't guarantee the measuring degree of accuracy, it is great promptly to adopt inside micrometer to measure the inside through-hole diameter degree of difficulty of coupling, and operating efficiency is not high, and because artificial factor easily causes the operating action not standard, lead to measuring error very easily.
Disclosure of Invention
In view of one or more problems in the prior art, the present invention provides an apparatus for measuring the inner diameter of a coupling through-hole, comprising:
the device body comprises a measuring bracket (3) and a support rod (8), and the measuring bracket (3) is fixedly connected with the support rod (8);
the distance measuring system comprises a laser distance measuring probe (2), a digital display screen (4), a start button (5) and a reset button (6) which are electrically connected with each other, wherein a through hole matched with the laser distance measuring probe (2) in size is formed in the center of the measuring bracket (3), the laser distance measuring probe (2) can be installed in the through hole, and probes are arranged at two end parts of the laser distance measuring probe (2); the digital display screen (4), the start button (5) and the reset button (6) are arranged on the support rod (8), the start button (5) and the reset button (6) are used for controlling the laser ranging probe (2), and the digital display screen (4) is used for displaying the ranging value of the laser ranging probe (2) and/or the inner diameter of a coupling through hole;
and the USB charging port (7) is arranged on the support rod (8) and is used for charging the distance measuring system.
The device for measuring the inner diameter of the coupling through hole further comprises measuring bracket contacts (1), the measuring bracket (3) is rectangular, and the number of the measuring bracket contacts (1) is 4 and is respectively arranged at four corners of the measuring bracket (3).
The length a, the width b and the height c of the measuring bracket (3) respectively meet the following dimensional requirements:
when the coupling outer diameter ranges from 73.02mm to 127mm, the length a, the width b and the height c of the measuring bracket (3) are 60mm, 40mm and 5mm respectively;
when the coupling outer diameter is in the range of 127-269.9mm, the length a, width b and height c of the measuring bracket (3) are 90mm, 60mm and 5mm, respectively;
when the coupling outer diameter is in the range of 269.9-365.12mm, the length a, width b and height c of the measuring bracket (3) are 180mm, 80mm and 5mm, respectively.
The device for measuring the inner diameter of the coupling through hole comprises a laser ranging probe, a measuring bracket, a digital display screen, a start button, a reset button, a USB charging port and a support rod, wherein the digital display screen, the start button, the reset button and the laser ranging probe form a high-precision laser ranging system, the start button is pressed outside a coupling, namely, the sum of the vertical distances between the probe and the upper inner surface and the lower inner surface of the coupling through hole can be detected by controlling the laser ranging probe, and then the result can be directly displayed on the digital display screen by adding the height of the laser ranging probe to obtain the numerical value of the inner diameter of the coupling through hole. The device body that comprises measurement bracket and cradling piece in the device of measurement coupling through-hole internal diameter that provides can guarantee to install the laser range finding probe on the measurement bracket and coupling through-hole interior upper and lower surface vertical when measuring to convenient operation, even when coupling through-hole internal diameter is less, also can not produce because artificial factor easily causes the operation action not standard, leads to measuring error's problem very easily. Therefore, the measuring device provided by the invention is convenient to use, economic and efficient, and particularly solves the technical problems of small diameter, difficult operation and inaccurate reading of the small-size tubing coupling, thereby avoiding the problems of inaccurate manual measurement and inconvenient operation and improving the production detection efficiency.
Compared with the prior art, the invention has the following beneficial effects:
the invention creatively introduces the principle of the laser range finder into numerical control processing measurement, and presses a start button externally, namely the vertical distance between the probe and the upper and lower inner surfaces of the coupling can be detected by controlling the laser range finder, and the height of the range finder is added, so that the inner diameter of the through hole of the coupling can be rapidly measured, and the accuracy is high. The measuring device can be directly reset by pressing a reset button, and the USB charging hole of the measuring device charges the measuring device through the external power adapter without frequently replacing the battery. Therefore, the invention develops a brand-new and effective measuring method for the diameter of the internal through hole, avoids the complexity and errors of the conventional measurement by using an inside micrometer, saves time, improves efficiency and can increase the accuracy of single measurement of thread machining.
Drawings
FIG. 1 is a schematic diagram of a collar through-hole structure, wherein Φ d1 represents the collar through-hole inner diameter, and L represents the collar through-hole length;
FIG. 2 is a schematic structural diagram of the apparatus for measuring the inside diameter of a coupling through hole according to the present invention;
FIG. 3 is a schematic structural diagram of a measuring bracket in the apparatus for measuring the inside diameter of a coupling through hole according to the present invention;
FIG. 4 is a schematic structural diagram of the placement of a measuring bracket inside a coupling through hole in the device for measuring the inner diameter of the coupling through hole provided by the invention.
Detailed Description
The present invention is described in more detail below with reference to examples. These examples are merely illustrative of the best mode of carrying out the invention and do not limit the scope of the invention in any way.
As shown in fig. 2, the structural schematic diagram of the device for measuring the inner diameter of the coupling through hole provided by the invention is shown, the device comprises a laser ranging probe 2, a measuring bracket 3, a digital display screen 4, a start button 5, a reset button 6, a USB charging port 7, a support rod 8, and a measuring bracket contact 1, wherein the measuring bracket 3 and the support rod 8 are fixedly connected to form a device body. As shown in fig. 3, a schematic structural diagram of the measurement bracket 3 is shown, which may be rectangular, wherein a is the schematic structural diagram of the measurement bracket 3, B is the schematic structural diagram of a cross section along line AA in a, C is the schematic structural diagram of a cross section along line BB in a, and D is the schematic structural diagram of a three-dimensional structure of the measurement bracket 3. It can be seen that a through hole is opened at the center of the measuring bracket 3, the through hole is used for installing the laser ranging probe 2, the laser ranging probe 2 is provided with two probes arranged at the end parts of two ends, therefore, after the laser ranging probe 2 is installed in the through hole of the measuring bracket 3, the laser ranging probe 2 can perform ranging operation in the upper and lower directions. The number of the measuring bracket contacts 1 can be 4, the measuring bracket contacts are respectively detachably mounted at four corners of the measuring bracket 3, the measuring bracket contacts 1 can be used for facilitating the concentricity of the measuring bracket 3 and a coupling through hole during measurement (namely, the central through hole of the measuring bracket 3 is just positioned at the cross section position of the coupling through hole, and the coupling is relatively short, so that the placement position of the measuring bracket 3 can be determined visually), and the two ends of the laser ranging probe 2 are ensured to be perpendicular to the upper inner surface and the lower inner surface of the coupling through hole, and the abrasion of the measuring bracket 3 can be avoided. The digital display screen 4, the start button 5, the reset button 6 and the USB charging port 7 are all disposed on the support rod 8, wherein the digital display screen 4, the start button 5, the reset button 6 and the laser ranging probe 2 are electrically connected to each other (for example, a wire may be used to electrically connect the laser ranging probe 2 with a control display system composed of the digital display screen 4, the start button 5 and the reset button 6, so as to realize the operation control of the start button 5 and the reset button 6 on the laser ranging probe 2, and display the result measured by the laser ranging probe 2 on the digital display screen 4, and the digital display screen 4 may also directly display the result of measuring the inner diameter of the coupling), and together constitute a ranging system. As shown in fig. 4, after the measuring bracket 3 is placed in the correct position in the coupling through-hole by the holder bar 8, the upper and lower ports of the laser ranging probe 2 are opposite to the position of the coupling through hole, the distance between the upper and lower end heads of the laser ranging probe 2 and the upper and lower inner surfaces of the coupling through hole can be measured by pressing the start button 5, the measurement result is displayed on the digital display screen 4, the distance between the two ends of the laser ranging probe 2 on the digital display screen 4 and the upper inner surface and the lower inner surface of the coupling through hole respectively and the height of the laser ranging probe 2 are the inner diameter of the coupling through hole (namely the inner diameter of the coupling through hole is equal to the sum of the vertical distances between the upper end and the lower end of the laser ranging probe 2 and the height of the laser ranging probe 2), the final inner diameter result of the coupling through hole can be directly displayed by the digital display screen 4, and the reset button 6 can be pressed to measure again. The USB charging port 7 is used to charge the measuring device composed of the digital display screen 4, the start button 5, the reset button 6 and the laser ranging probe 2.
In a preferred embodiment of the present invention, as shown in FIG. 3, the measurement bracket 3 has a length, a width and a height, b and c, and different sizes of the measurement bracket 3 can be designed according to different sizes of coupling through holes (coupling outer diameter ranges from φ 73.02mm to φ 365.12mm), and the recommended size is shown in Table 1 below.
Table 1: measurement bracket size suggestion table
| Coupling outside diameter range | Length a (mm) | Width b (mm) | Thickness c (mm) |
| 73.02-127mm | 60 | 40 | 5 |
| 127-269.9mm | 90 | 60 | 5 |
| 269.9-365.12mm | 180 | 80 | 5 |
When the device for measuring the inner diameter of the coupling through hole is used for measuring the inner diameter of the coupling through hole, the laser ranging probe 2 (the precision of the laser ranging probe 2 is controlled within 0.1mm, the height is controlled within 30mm, and the accuracy of measuring the inner diameter of the coupling through hole is guaranteed) can be inserted into the through hole in the center of the measuring bracket 3, then the measuring bracket 3 provided with the laser ranging probe 2 is placed into the coupling through hole by using the support rod 8, the measuring bracket 3 is concentric with the coupling through hole through the measuring bracket contact 1, and the upper end and the lower end of the laser ranging probe 2 are guaranteed to be respectively opposite to and perpendicular to the inner surface of the coupling through hole. Alternatively, when the specification of the coupling through hole is large, the measurement bracket 3 can be placed into the coupling through hole through the support rod 8, and then the laser ranging probe 2 is vertically inserted into the through hole in the center of the measurement bracket 3, so that the measurement of the inner diameter of the coupling through hole is realized. Set up digital display screen 4 on the cradling piece 8, begin "start" button 5 and reset "button 6, can control the range finding operation of laser rangefinder probe 2 through" start "button 5 on the control cradling piece 8 during the measurement, can reset laser rangefinder probe 2 through resetting" reset "button 6, measuring device's USB charges mouthful 7 and charges for measuring device through the external power source adapter, need not often to change the battery.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An apparatus for measuring the inside diameter of a coupling through-hole, comprising:
the device body comprises a measuring bracket (3) and a support rod (8), and the measuring bracket (3) is fixedly connected with the support rod (8);
the distance measuring system comprises a laser distance measuring probe (2), a digital display screen (4), a start button (5) and a reset button (6) which are electrically connected with each other, wherein a through hole matched with the laser distance measuring probe (2) in size is formed in the center of the measuring bracket (3), the laser distance measuring probe (2) can be installed in the through hole, and probes are arranged at two end parts of the laser distance measuring probe (2); the digital display screen (4), the start button (5) and the reset button (6) are arranged on the support rod (8), the start button (5) and the reset button (6) are used for controlling the laser ranging probe (2), and the digital display screen (4) is used for displaying the ranging value of the laser ranging probe (2) and/or the inner diameter of a coupling through hole;
and the USB charging port (7) is arranged on the support rod (8) and is used for charging the distance measuring system.
2. The apparatus for measuring the inside diameter of coupling through-hole according to claim 1, further comprising measuring bracket contacts (1), the measuring bracket (3) having a rectangular shape, the measuring bracket contacts (1) having 4, respectively disposed at four corners of the measuring bracket (3).
3. The apparatus for measuring the inside diameter of coupling through-hole according to claim 2, wherein the length a, width b and height c of the measuring bracket (3) respectively satisfy the following dimensional requirements:
when the coupling outer diameter ranges from 73.02mm to 127mm, the length a, the width b and the height c of the measuring bracket (3) are 60mm, 40mm and 5mm respectively;
when the coupling outer diameter is in the range of 127-269.9mm, the length a, width b and height c of the measuring bracket (3) are 90mm, 60mm and 5mm, respectively;
when the coupling outer diameter is in the range of 269.9-365.12mm, the length a, width b and height c of the measuring bracket (3) are 180mm, 80mm and 5mm, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747432.9A CN113670214A (en) | 2021-07-02 | 2021-07-02 | Device for measuring inner diameter of coupling through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110747432.9A CN113670214A (en) | 2021-07-02 | 2021-07-02 | Device for measuring inner diameter of coupling through hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113670214A true CN113670214A (en) | 2021-11-19 |
Family
ID=78538467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110747432.9A Pending CN113670214A (en) | 2021-07-02 | 2021-07-02 | Device for measuring inner diameter of coupling through hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113670214A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789907A (en) * | 2005-12-27 | 2006-06-21 | 渤海船舶重工有限责任公司 | Inside diameter measurement system for big-size shaft hole |
| US20150131109A1 (en) * | 2012-02-09 | 2015-05-14 | Ihi Corporation | Inner Diameter Measuring Device and Inner Diameter Measuring Method |
| CN204346380U (en) * | 2014-12-19 | 2015-05-20 | 邢台市特种设备监督检验所 | Pressure vessel internal diameter laser measuring apparatus |
| CN106323185A (en) * | 2016-09-23 | 2017-01-11 | 苏州蓝王机床工具科技有限公司 | Digital display laser inner diameter measuring instrument |
| CN206269755U (en) * | 2016-11-26 | 2017-06-20 | 深圳市赛亿科技开发有限公司 | A kind of device for measuring tubular member internal diameter |
| CN107110646A (en) * | 2015-01-20 | 2017-08-29 | 斯图姆机械装备制造有限公司 | Test system and method for detecting hollow body |
| CN207472207U (en) * | 2017-08-16 | 2018-06-08 | 广东省特种设备检测研究院珠海检测院 | A kind of cylinder internal diameter laser measuring apparatus |
| CN212512912U (en) * | 2020-08-04 | 2021-02-09 | 山东华宇工学院 | Deep hole aperture measuring device based on infrared distance measurement |
| CN213455351U (en) * | 2020-09-30 | 2021-06-15 | 涟源钢铁集团有限公司 | Steel coil inner diameter measuring mechanism |
-
2021
- 2021-07-02 CN CN202110747432.9A patent/CN113670214A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789907A (en) * | 2005-12-27 | 2006-06-21 | 渤海船舶重工有限责任公司 | Inside diameter measurement system for big-size shaft hole |
| US20150131109A1 (en) * | 2012-02-09 | 2015-05-14 | Ihi Corporation | Inner Diameter Measuring Device and Inner Diameter Measuring Method |
| CN204346380U (en) * | 2014-12-19 | 2015-05-20 | 邢台市特种设备监督检验所 | Pressure vessel internal diameter laser measuring apparatus |
| CN107110646A (en) * | 2015-01-20 | 2017-08-29 | 斯图姆机械装备制造有限公司 | Test system and method for detecting hollow body |
| CN106323185A (en) * | 2016-09-23 | 2017-01-11 | 苏州蓝王机床工具科技有限公司 | Digital display laser inner diameter measuring instrument |
| CN206269755U (en) * | 2016-11-26 | 2017-06-20 | 深圳市赛亿科技开发有限公司 | A kind of device for measuring tubular member internal diameter |
| CN207472207U (en) * | 2017-08-16 | 2018-06-08 | 广东省特种设备检测研究院珠海检测院 | A kind of cylinder internal diameter laser measuring apparatus |
| CN212512912U (en) * | 2020-08-04 | 2021-02-09 | 山东华宇工学院 | Deep hole aperture measuring device based on infrared distance measurement |
| CN213455351U (en) * | 2020-09-30 | 2021-06-15 | 涟源钢铁集团有限公司 | Steel coil inner diameter measuring mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201285270Y (en) | Measuring tool | |
| CN202166376U (en) | Direct-reading measuring caliper | |
| CN203704817U (en) | Thread plug gauge used for detecting taper internal threads of graphite electrode | |
| CN208476151U (en) | A kind of threaded hole detection gauge | |
| CN113670214A (en) | Device for measuring inner diameter of coupling through hole | |
| CN207763597U (en) | Go-no go gauge | |
| CN201037760Y (en) | Measuring tool for hole | |
| CN202329460U (en) | Taper hole measurement device | |
| CN210198255U (en) | Device for measuring height difference of tool withdrawal groove of cylinder sleeve | |
| CN201277842Y (en) | Inner caliper with staff | |
| CN111289030B (en) | Capacitive sensor stability testing device | |
| CN211262076U (en) | Inner diameter measuring device | |
| CN208187312U (en) | A kind of rim inner diameter measuring device | |
| CN209085507U (en) | The device for fast detecting of inner bore chamfering depth | |
| CN207688764U (en) | One kind is for measuring the externally threaded special measurement ring gauge of graphite electrode nipple circular cone | |
| CN208075705U (en) | The measuring device of ball screw | |
| CN207423239U (en) | A kind of tapered probe for the single folder high optical detection of position multiaspect | |
| CN206113790U (en) | A percentage table connects pole for measuring work piece cavity inside dimension | |
| CN204359253U (en) | A kind of sphere diameter on-position measure device | |
| CN204854667U (en) | Wide measuring device of non -contact keyway | |
| CN210070811U (en) | Three-needle thickness gauge | |
| CN210487023U (en) | Calibrating device for on-site calibration reflection type liquid level meter | |
| CN213238726U (en) | Adjustable depth measuring tool | |
| CN213714126U (en) | Tool holder end face detection tool | |
| CN203479225U (en) | Spherical hole radius measuring tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |