JPS55125412A - Through hole inspecting device - Google Patents

Through hole inspecting device

Info

Publication number
JPS55125412A
JPS55125412A JP3282479A JP3282479A JPS55125412A JP S55125412 A JPS55125412 A JP S55125412A JP 3282479 A JP3282479 A JP 3282479A JP 3282479 A JP3282479 A JP 3282479A JP S55125412 A JPS55125412 A JP S55125412A
Authority
JP
Japan
Prior art keywords
hole
pressure
air
specific
storage chamber
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
Application number
JP3282479A
Other languages
Japanese (ja)
Inventor
Kazuhito Aikawa
Toshio Shimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokico Ltd
Original Assignee
Tokico Ltd
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 Tokico Ltd filed Critical Tokico Ltd
Priority to JP3282479A priority Critical patent/JPS55125412A/en
Publication of JPS55125412A publication Critical patent/JPS55125412A/en
Pending legal-status Critical Current

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  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

PURPOSE: To make it possible to inspect the state of a minute through hole without reqiring a special technique and with efficiency by providing a pressure storage chamber at the outside of the through hole, forcing air via the through hole and deciding good or bad in a period of time in which air reaches a specific pressure.
CONSTITUTION: To the receiving plate 2 of a fixed bedplate 1 there is fitted a round bar-like main body 3. A cylinder 4 is fitted in the main body and pressed and fixed by means of a clamp 37. Then, a through hole 7 is worked into a specific dimension by a drill 1a, and the pressure storage chamber is closed by a packing 38 and a lid 45, and a pressure detector 40 is connected thereto through a hole 38a. In this state, pressure air is caused to flow into the detector 40, where the air pressure is measured. Upon this occasion, even if the hole 7 is worked correctly, if there is no pressure storage chamber, the time for sensing the air pressure is short but the hole comes to have a specific pressure after a specific period of time, and thereafter the judgement of good or bad of the through hole can be carried out very easily.
COPYRIGHT: (C)1980,JPO&Japio
JP3282479A 1979-03-20 1979-03-20 Through hole inspecting device Pending JPS55125412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3282479A JPS55125412A (en) 1979-03-20 1979-03-20 Through hole inspecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3282479A JPS55125412A (en) 1979-03-20 1979-03-20 Through hole inspecting device

Publications (1)

Publication Number Publication Date
JPS55125412A true JPS55125412A (en) 1980-09-27

Family

ID=12369568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3282479A Pending JPS55125412A (en) 1979-03-20 1979-03-20 Through hole inspecting device

Country Status (1)

Country Link
JP (1) JPS55125412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113654776A (en) * 2021-07-22 2021-11-16 重庆锦鹏得祥机电设备有限公司 Valve body hole data automatic acquisition device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113654776A (en) * 2021-07-22 2021-11-16 重庆锦鹏得祥机电设备有限公司 Valve body hole data automatic acquisition device

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