JPS6474403A - Position and phase measuring instrument for bolt and nut - Google Patents

Position and phase measuring instrument for bolt and nut

Info

Publication number
JPS6474403A
JPS6474403A JP23287087A JP23287087A JPS6474403A JP S6474403 A JPS6474403 A JP S6474403A JP 23287087 A JP23287087 A JP 23287087A JP 23287087 A JP23287087 A JP 23287087A JP S6474403 A JPS6474403 A JP S6474403A
Authority
JP
Japan
Prior art keywords
bolt
nut
signal
phase
coordinates
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
JP23287087A
Other languages
Japanese (ja)
Inventor
Yoshihiro Nakamura
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP23287087A priority Critical patent/JPS6474403A/en
Publication of JPS6474403A publication Critical patent/JPS6474403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To measure the positions and phases of the bolt and nut without contacting by measuring the coordinates of the center of gravity and phase of the bolt or nut with the signal of the bolt or nut detected from video data. CONSTITUTION:A camera 1 picks up an image of the bolt and nut. The analog signal outputted by the camera 1 is inputted to an A/D converter 2. The converter 2 converts the signal into a digital video signal. The digital video signal is stored in an image memory 3. The signal stored in the image memory 3 is converted by an address-coordinate converting means 4 into coordinates. A detecting means 5 detects the signal of the bolt or nut with the signal after the coordinate conversion. The coordinate signal of the bolt or nut is used to measure the coordinates of the center of gravity by a position measuring means 6 and the phase by a phase measuring means 7.
JP23287087A 1987-09-17 1987-09-17 Position and phase measuring instrument for bolt and nut Pending JPS6474403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23287087A JPS6474403A (en) 1987-09-17 1987-09-17 Position and phase measuring instrument for bolt and nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23287087A JPS6474403A (en) 1987-09-17 1987-09-17 Position and phase measuring instrument for bolt and nut

Publications (1)

Publication Number Publication Date
JPS6474403A true JPS6474403A (en) 1989-03-20

Family

ID=16946118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23287087A Pending JPS6474403A (en) 1987-09-17 1987-09-17 Position and phase measuring instrument for bolt and nut

Country Status (1)

Country Link
JP (1) JPS6474403A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020134401A (en) * 2019-02-22 2020-08-31 トヨタ自動車株式会社 Crankshaft axial behavior measurement method
JP2022127981A (en) * 2021-02-22 2022-09-01 東海旅客鉄道株式会社 Bolt looseness judgment system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020134401A (en) * 2019-02-22 2020-08-31 トヨタ自動車株式会社 Crankshaft axial behavior measurement method
JP2022127981A (en) * 2021-02-22 2022-09-01 東海旅客鉄道株式会社 Bolt looseness judgment system

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