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JPS6434632A - Positioning error compensator - Google Patents

Positioning error compensator

Info

Publication number
JPS6434632A
JPS6434632A JP18979087A JP18979087A JPS6434632A JP S6434632 A JPS6434632 A JP S6434632A JP 18979087 A JP18979087 A JP 18979087A JP 18979087 A JP18979087 A JP 18979087A JP S6434632 A JPS6434632 A JP S6434632A
Authority
JP
Japan
Prior art keywords
error
piezoelectric element
positioning error
piezoelectric
controller
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
JP18979087A
Other languages
Japanese (ja)
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 JP18979087A priority Critical patent/JPS6434632A/en
Publication of JPS6434632A publication Critical patent/JPS6434632A/en
Pending 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • B23Q5/404—Screw bearings therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To compensate positioning error with high resolution power of a piezoelectric element by providing a piezoelectric element for a bearing holder or a nut holder and mounting a controller which changes application voltage to the piezoelectric element according to error of a feed screw. CONSTITUTION:A table 2 moved by a feed motor 5 turned under the command of an NC device 19 is positioned when the output signal from a position detector 9 coincides with the command value of the NC device 19. At this time pitch error of a pole screw 4, defective turning precision of bearings 8, 12 and 13 or faulty assembly occurs. The control signal according to such error is sent to a piezoelectric controller 21, which changes the voltages applied to piezoelectric elements 14 and 15 to displace the axial position of the pole screw 4 a little so that the positioning error of the table 2 can be compensated.
JP18979087A 1987-07-29 1987-07-29 Positioning error compensator Pending JPS6434632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18979087A JPS6434632A (en) 1987-07-29 1987-07-29 Positioning error compensator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18979087A JPS6434632A (en) 1987-07-29 1987-07-29 Positioning error compensator

Publications (1)

Publication Number Publication Date
JPS6434632A true JPS6434632A (en) 1989-02-06

Family

ID=16247248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18979087A Pending JPS6434632A (en) 1987-07-29 1987-07-29 Positioning error compensator

Country Status (1)

Country Link
JP (1) JPS6434632A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6211477A (en) * 1986-02-26 1987-01-20 みたまや金属工業株式会社 Extensible roller skate
JPS6211476A (en) * 1986-02-26 1987-01-20 みたまや金属工業株式会社 Extensible roller skate
WO1993009911A1 (en) * 1991-11-15 1993-05-27 Yotaro Hatamura Feed screw device and precisely positioning micromotion feed system
US6565293B2 (en) * 2000-01-28 2003-05-20 Recoules S.A. Pneumatic machine tool
JP2012147666A (en) * 2012-03-02 2012-08-02 Nsk Ltd Shaft direction micromotion mechanism with rolling mechanism and positioning device using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114840A (en) * 1981-12-28 1983-07-08 Toshiba Mach Co Ltd Correcting system of pitch error in machine tool
JPS60213456A (en) * 1984-04-04 1985-10-25 Citizen Watch Co Ltd Positioning device
JPS61214941A (en) * 1985-03-19 1986-09-24 Nachi Fujikoshi Corp Fine positioning mechanism for rectilinear movement apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114840A (en) * 1981-12-28 1983-07-08 Toshiba Mach Co Ltd Correcting system of pitch error in machine tool
JPS60213456A (en) * 1984-04-04 1985-10-25 Citizen Watch Co Ltd Positioning device
JPS61214941A (en) * 1985-03-19 1986-09-24 Nachi Fujikoshi Corp Fine positioning mechanism for rectilinear movement apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6211477A (en) * 1986-02-26 1987-01-20 みたまや金属工業株式会社 Extensible roller skate
JPS6211476A (en) * 1986-02-26 1987-01-20 みたまや金属工業株式会社 Extensible roller skate
WO1993009911A1 (en) * 1991-11-15 1993-05-27 Yotaro Hatamura Feed screw device and precisely positioning micromotion feed system
US5644951A (en) * 1991-11-15 1997-07-08 Hatamura; Yotaro Feed screw apparatus and precise positioning and fine feed system
US6565293B2 (en) * 2000-01-28 2003-05-20 Recoules S.A. Pneumatic machine tool
JP2012147666A (en) * 2012-03-02 2012-08-02 Nsk Ltd Shaft direction micromotion mechanism with rolling mechanism and positioning device using the same

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