JPS6427802A - Clamping device for moving body - Google Patents

Clamping device for moving body

Info

Publication number
JPS6427802A
JPS6427802A JP17941987A JP17941987A JPS6427802A JP S6427802 A JPS6427802 A JP S6427802A JP 17941987 A JP17941987 A JP 17941987A JP 17941987 A JP17941987 A JP 17941987A JP S6427802 A JPS6427802 A JP S6427802A
Authority
JP
Japan
Prior art keywords
displacement
sleeve
control unit
moving body
piezoelectric element
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
JP17941987A
Other languages
Japanese (ja)
Other versions
JPH0688166B2 (en
Inventor
Hideo Yuzuhara
Toshio Kagami
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.)
Okuma Corp
Original Assignee
Okuma Machinery Works 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 Okuma Machinery Works Ltd filed Critical Okuma Machinery Works Ltd
Priority to JP62179419A priority Critical patent/JPH0688166B2/en
Publication of JPS6427802A publication Critical patent/JPS6427802A/en
Publication of JPH0688166B2 publication Critical patent/JPH0688166B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/34—Relative movement obtained by use of deformable elements, e.g. piezoelectric, magnetostrictive, elastic or thermally-dilatable elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Machine Tool Units (AREA)
  • Clamps And Clips (AREA)

Abstract

PURPOSE:To prevent displacement of the core of a moving body during clamping and to improve processing precision, by a method wherein a voltage fed to a piezoelectric element situated on an opposing surface between the moving body and a support member is controlled by a displacement gauge member to detect relative displacement between the moving body and the support member. CONSTITUTION:A voltage fed to a control unit 12 according to a clamp command is applied on a piezoelectric element 10, and a sleeve 3 is pushed in the direction of an axis for clamping. The clamping causes radial displacement of the sleeve 3, and a signal responding to a displacement amount is outputted to a control unit 13 by means of a displacement gauge 11 to calculate a displacement amount. Prestored numeric values in the directions of an X-axis and an Y-axis, in which the sleeve 3 and the main spindle are positioned concentrically to each other, are compared with each other, and a signal proportioning an error is outputted to the control unit 12. The control unit 12 feeds a voltage matching the signal for changing a displacement amount of the piezoelectric element 10, and the sleeve 3 is moved to the center side in a radial direction, and the sleeve 3 is held concentrically to the main spindle.
JP62179419A 1987-07-17 1987-07-17 Clamping device for moving body Expired - Lifetime JPH0688166B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179419A JPH0688166B2 (en) 1987-07-17 1987-07-17 Clamping device for moving body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179419A JPH0688166B2 (en) 1987-07-17 1987-07-17 Clamping device for moving body

Publications (2)

Publication Number Publication Date
JPS6427802A true JPS6427802A (en) 1989-01-30
JPH0688166B2 JPH0688166B2 (en) 1994-11-09

Family

ID=16065538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179419A Expired - Lifetime JPH0688166B2 (en) 1987-07-17 1987-07-17 Clamping device for moving body

Country Status (1)

Country Link
JP (1) JPH0688166B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145918U (en) * 1989-05-12 1990-12-11

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234736A (en) * 1985-08-02 1987-02-14 Fujitsu Ltd Clamping mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234736A (en) * 1985-08-02 1987-02-14 Fujitsu Ltd Clamping mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145918U (en) * 1989-05-12 1990-12-11

Also Published As

Publication number Publication date
JPH0688166B2 (en) 1994-11-09

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