JPS56146670A - Grinder - Google Patents

Grinder

Info

Publication number
JPS56146670A
JPS56146670A JP4690980A JP4690980A JPS56146670A JP S56146670 A JPS56146670 A JP S56146670A JP 4690980 A JP4690980 A JP 4690980A JP 4690980 A JP4690980 A JP 4690980A JP S56146670 A JPS56146670 A JP S56146670A
Authority
JP
Japan
Prior art keywords
voltage
work
grinding
contact
grinding stone
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.)
Granted
Application number
JP4690980A
Other languages
Japanese (ja)
Other versions
JPS6218313B2 (en
Inventor
Koji Nakazawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4690980A priority Critical patent/JPS56146670A/en
Publication of JPS56146670A publication Critical patent/JPS56146670A/en
Publication of JPS6218313B2 publication Critical patent/JPS6218313B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Machine Tool Sensing Apparatuses (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

PURPOSE: To automate emergency stop at the time of abnormality, by measuring the voltage which is generated between nozzles and a work or a grinding stone.
CONSTITUTION: Contact and non-contact of a grinding stone 1 are detected by the size of thermoelectromotive force which is generated between the first nozzle 4-1 electrically insulated with use of electric conductive grinding liquid and a work 2, voltage is applied between the second nozzle 5 electrically insulated likewise and the work 2, approaching distance between the both is detected by the size of its voltage, contact condition and minute grinding force which include loss of the grinding stone 1 are supervised by in-process without losing rigidity and workability of the machine itself, so that emergency stop at the time of abnormal machining can be automated.
COPYRIGHT: (C)1981,JPO&Japio
JP4690980A 1980-04-11 1980-04-11 Grinder Granted JPS56146670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4690980A JPS56146670A (en) 1980-04-11 1980-04-11 Grinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4690980A JPS56146670A (en) 1980-04-11 1980-04-11 Grinder

Publications (2)

Publication Number Publication Date
JPS56146670A true JPS56146670A (en) 1981-11-14
JPS6218313B2 JPS6218313B2 (en) 1987-04-22

Family

ID=12760477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4690980A Granted JPS56146670A (en) 1980-04-11 1980-04-11 Grinder

Country Status (1)

Country Link
JP (1) JPS56146670A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192749A (en) * 1982-04-30 1983-11-10 Hitachi Ltd Electric contact detecting method
US4853672A (en) * 1986-08-22 1989-08-01 Honda Giken Kogyo Kabushiki Kaisha Steering angle detector
JP2007083357A (en) * 2005-09-22 2007-04-05 Jtekt Corp Device for measuring thickness of grinding fluid, and grinder using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507180A (en) * 1973-05-24 1975-01-24
JPS5339579A (en) * 1976-09-24 1978-04-11 Niigata Eng Co Ltd Method of detecting operation of tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507180A (en) * 1973-05-24 1975-01-24
JPS5339579A (en) * 1976-09-24 1978-04-11 Niigata Eng Co Ltd Method of detecting operation of tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192749A (en) * 1982-04-30 1983-11-10 Hitachi Ltd Electric contact detecting method
JPH0112632B2 (en) * 1982-04-30 1989-03-01 Hitachi Ltd
US4853672A (en) * 1986-08-22 1989-08-01 Honda Giken Kogyo Kabushiki Kaisha Steering angle detector
JP2007083357A (en) * 2005-09-22 2007-04-05 Jtekt Corp Device for measuring thickness of grinding fluid, and grinder using the same
JP4677315B2 (en) * 2005-09-22 2011-04-27 株式会社ジェイテクト Grinding fluid thickness measuring apparatus and grinding machine using the apparatus

Also Published As

Publication number Publication date
JPS6218313B2 (en) 1987-04-22

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