Device for measuring inner diameter of through hole of coupling

A technology of inner diameter and laser ranging, which is applied in the field of devices for measuring the inner diameter of through holes of couplings, and devices for measuring the inner diameter of through holes of special threaded couplings, can solve the problems of irregular operation, difficult operation and low operation efficiency, etc. Achieve the effect of avoiding tediousness and errors, increasing accuracy and fast measurement

Pending Publication Date: 2021-11-19
BAOTOU IRON & STEEL GRP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, due to the diameter of the internal through hole of the special threaded coupling (such as figure 1 Φd1) is located in the middle of the coupling, so the measuring claws of conventional vernier calipers cannot reach
At present, the on-site measurement mainly uses the inner diameter micrometer to measure. When inspecting the special threaded coupling of the oil pipe, due to the small inner diameter, it will be difficult to use the inner diameter micrometer to measure the inside of t

Method used

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  • Device for measuring inner diameter of through hole of coupling
  • Device for measuring inner diameter of through hole of coupling
  • Device for measuring inner diameter of through hole of coupling

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[0019] The present invention will be described in more detail below with examples. These examples are only descriptions of the best implementation modes of the present invention, and do not limit the content of the present invention in any way.

[0020] like figure 2 As shown, it shows a schematic structural view of the device for measuring the inner diameter of the collar through hole provided by the present invention. The device includes a laser ranging probe 2, a measuring bracket 3, a digital display screen 4, a "start" button 5, a reset " "reset" button 6, USB charging port 7, support rod 8, and may also include a measurement bracket contact 1, wherein the measurement bracket 3 and the support rod 8 are fixedly connected to form the device body. like image 3 As shown, a schematic view of the structure of the measuring bracket 3 is shown, which can be a rectangle, wherein A frame is a structural schematic view of the measuring bracket 3, B frame is a schematic cross-se...

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Abstract

The invention discloses a device for measuring the inner diameter of a through hole of a coupling. The device comprises a laser ranging probe, a measurement 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 down outside the coupling, The sum of vertical distances between the probe and the upper and lower inner surfaces 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, economical and efficient to use, particularly aims at technical problems of small diameter, difficult operation and inaccurate reading of the small-specification tubing coupling, avoids problems of inaccurate manual measurement and inconvenient operation, and can improve efficiency of production detection.

Description

technical field [0001] The invention belongs to the technical field of a diameter measuring device for a special thread internal through hole, in particular to a device for measuring the inner diameter of a collar through hole, in particular to a measuring device for the inner diameter of a special threaded collar through hole processed by a numerical control threading machine. Background technique [0002] At present, due to the diameter of the internal through hole of the special threaded coupling (such as figure 1 Middle Φd1) is located in the middle of the coupling, so the measuring claws of conventional vernier calipers cannot be reached. At present, the on-site measurement mainly uses the inner diameter micrometer to measure. When inspecting the special threaded coupling of the oil pipe, due to the small inner diameter, it will be difficult to use the inner diameter micrometer to measure the inside of the through hole of the coupling by hand, and it is impossible to en...

Claims

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Application Information

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IPC IPC(8): G01B11/12
CPCG01B11/12
Inventor 胡海青张海燕刘国辉张昭米永峰姜海龙
Owner BAOTOU IRON & STEEL GRP
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