JPS57115925A - Centering device - Google Patents

Centering device

Info

Publication number
JPS57115925A
JPS57115925A JP68081A JP68081A JPS57115925A JP S57115925 A JPS57115925 A JP S57115925A JP 68081 A JP68081 A JP 68081A JP 68081 A JP68081 A JP 68081A JP S57115925 A JPS57115925 A JP S57115925A
Authority
JP
Japan
Prior art keywords
mortar
voltages
tool
clearance
differential amplifier
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
JP68081A
Other languages
Japanese (ja)
Inventor
Akira Inoue
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP68081A priority Critical patent/JPS57115925A/en
Publication of JPS57115925A publication Critical patent/JPS57115925A/en
Pending legal-status Critical Current

Links

Landscapes

  • Machine Tool Sensing Apparatuses (AREA)
  • Punching Or Piercing (AREA)

Abstract

PURPOSE: To perform accurate centerings without skill, by irradiating a uniform light from the bottom and by detecting the difference between the light passing through two symmetrical points in a clearance between the blanking tool and the mortar.
CONSTITUTION: A mortar 2 is installed on a table 4 of a machine tool and a uniform light is irradiated from the bottom of the table 4. Then, the light passing through two symmetrical points 7 and 7 in a clearance between the blanking tool 1 and the mortar 2 is transformed into voltages by phototransistors 8 and 8' through optical fibers 7 and 7', and the voltages are sent to a differential amplifier 15 through DC amplifiers 14 and 14'. At the differential amplifier 15, the voltages from two systems are compared with each other and the result is displayed on an measuring instrument 16. Accurate centerings can be realized with the above mentioned device by adjusting relative positions of the tool and the mortar so that the instrument may make zero displays.
COPYRIGHT: (C)1982,JPO&Japio
JP68081A 1981-01-08 1981-01-08 Centering device Pending JPS57115925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP68081A JPS57115925A (en) 1981-01-08 1981-01-08 Centering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP68081A JPS57115925A (en) 1981-01-08 1981-01-08 Centering device

Publications (1)

Publication Number Publication Date
JPS57115925A true JPS57115925A (en) 1982-07-19

Family

ID=11480463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP68081A Pending JPS57115925A (en) 1981-01-08 1981-01-08 Centering device

Country Status (1)

Country Link
JP (1) JPS57115925A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04114518U (en) * 1991-03-22 1992-10-08 株式会社フアニー Wig insert
EP2165784A1 (en) * 2008-09-17 2010-03-24 Trumpf Werkzeugmaschinen GmbH + Co. KG Device and method for automatically centring die holders of a stamping machine
CN103394933A (en) * 2013-07-31 2013-11-20 中联重科股份有限公司渭南分公司 Machining equipment
CN108620925A (en) * 2018-06-29 2018-10-09 薛敏强 The machining center and its working method of a kind of automatic detection and clamping parts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04114518U (en) * 1991-03-22 1992-10-08 株式会社フアニー Wig insert
EP2165784A1 (en) * 2008-09-17 2010-03-24 Trumpf Werkzeugmaschinen GmbH + Co. KG Device and method for automatically centring die holders of a stamping machine
CN103394933A (en) * 2013-07-31 2013-11-20 中联重科股份有限公司渭南分公司 Machining equipment
CN108620925A (en) * 2018-06-29 2018-10-09 薛敏强 The machining center and its working method of a kind of automatic detection and clamping parts

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