JPS6471604A - Tool clamping device - Google Patents

Tool clamping device

Info

Publication number
JPS6471604A
JPS6471604A JP22833187A JP22833187A JPS6471604A JP S6471604 A JPS6471604 A JP S6471604A JP 22833187 A JP22833187 A JP 22833187A JP 22833187 A JP22833187 A JP 22833187A JP S6471604 A JPS6471604 A JP S6471604A
Authority
JP
Japan
Prior art keywords
internal
small
surface electrode
shaft part
diameter
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
JP22833187A
Other languages
Japanese (ja)
Inventor
Shuhei Takasu
Takao Terabayashi
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 JP22833187A priority Critical patent/JPS6471604A/en
Publication of JPS6471604A publication Critical patent/JPS6471604A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/28—Chucks characterised by features relating primarily to remote control of the gripping means using electric or magnetic means in the chuck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/108—Piezoelectric elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

PURPOSE:To clamp a tool of small size by securing an internal surface electrode, whose internal diameter is somewhat smaller than the diameter of a shaft part of the small-sized tool, to the internal peripheral surface of a cylindrical piezoelectric element and an external surface electrode to the peripheral surface of the piezoelectric element and applying voltage between the internal and external surface electrodes. CONSTITUTION:Forming an internal diameter of an internal surface electrode 2 slightly smaller than the diameter of a shaft part of a small-sized tool 9, a slit 4 in the axial direction is provided in the internal and external electrodes 2, 3. A voltage connector 7 is brought into contact with conductor pins 5a, 5b, and when voltage is applied between the internal surface electrode 2 and the external surface electrode 3, piezoelectric elements 1a, 1b spread in the radial direction, enabling the shaft part of the small-sized tool 9 to be inserted. When the voltage connector 7 is separated from the conductor pins 5a, 5b, because the piezoelectric elements 1a, 1b tend to contract to the original size, the shaft part of the small-sized tool 9 can be clamped. Since this clamping device eliminates the necessity for forming the rotary part in double construction, manufacture is facilitated.
JP22833187A 1987-09-14 1987-09-14 Tool clamping device Pending JPS6471604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22833187A JPS6471604A (en) 1987-09-14 1987-09-14 Tool clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22833187A JPS6471604A (en) 1987-09-14 1987-09-14 Tool clamping device

Publications (1)

Publication Number Publication Date
JPS6471604A true JPS6471604A (en) 1989-03-16

Family

ID=16874780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22833187A Pending JPS6471604A (en) 1987-09-14 1987-09-14 Tool clamping device

Country Status (1)

Country Link
JP (1) JPS6471604A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10113889A (en) * 1996-10-08 1998-05-06 Yamaha Motor Co Ltd Nozzle holding device for surface mounting machine
WO2005063447A1 (en) * 2003-12-23 2005-07-14 Franz Haimer Maschinenbau Kg Clamping device comprising at least one electromechanical actuator as a clamping element
US20110095493A1 (en) * 2009-10-26 2011-04-28 Credo Technology Corporation Piezoelectric clamping device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10113889A (en) * 1996-10-08 1998-05-06 Yamaha Motor Co Ltd Nozzle holding device for surface mounting machine
WO2005063447A1 (en) * 2003-12-23 2005-07-14 Franz Haimer Maschinenbau Kg Clamping device comprising at least one electromechanical actuator as a clamping element
US20110095493A1 (en) * 2009-10-26 2011-04-28 Credo Technology Corporation Piezoelectric clamping device
US8499431B2 (en) * 2009-10-26 2013-08-06 Robert Bosch Gmbh Piezoelectric clamping device

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