EP1537988A3 - Bottom dead centre correction device for servo press machines - Google Patents

Bottom dead centre correction device for servo press machines Download PDF

Info

Publication number
EP1537988A3
EP1537988A3 EP05003258A EP05003258A EP1537988A3 EP 1537988 A3 EP1537988 A3 EP 1537988A3 EP 05003258 A EP05003258 A EP 05003258A EP 05003258 A EP05003258 A EP 05003258A EP 1537988 A3 EP1537988 A3 EP 1537988A3
Authority
EP
European Patent Office
Prior art keywords
bottom dead
dead center
slide
value
detection device
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
EP05003258A
Other languages
German (de)
French (fr)
Other versions
EP1537988A2 (en
EP1537988B1 (en
Inventor
Yasuhiko Oyamada
Kunihiro Suzuki
Youichi Kubota
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.)
Aida Engineering Ltd
Original Assignee
Aida Engineering 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 Aida Engineering Ltd filed Critical Aida Engineering Ltd
Priority to DE60041559T priority Critical patent/DE60041559D1/en
Priority claimed from EP00309570A external-priority patent/EP1201416B1/en
Publication of EP1537988A2 publication Critical patent/EP1537988A2/en
Publication of EP1537988A3 publication Critical patent/EP1537988A3/en
Application granted granted Critical
Publication of EP1537988B1 publication Critical patent/EP1537988B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • B30B15/0041—Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
    • B30B1/186—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0094—Press load monitoring means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)

Abstract

A bottom dead center correction device for a servo press machine which can correct the bottom dead center with a high precision not achieved by a bottom dead center correction by a slide position detection device provided on a frame includes a bottom dead center sensor 11 and a temperature sensor 12 on a lower mold 10B of a die 10. The bottom dead center of a set slide motion of slide 3 is corrected by the bottom dead center measurement value of bottom dead center detection sensor 11 and by the temperature drift of bottom dead center detection sensor 11 resulting from the rise of die 10 due to molding and detected by temperature sensor 12. A bottom dead center correction of one micron unit not previously achieved becomes possible. The bottom dead center correction device also can be provided as one which corrects for the fluctuations in the bottom dead center resulting from deformations in all of the construction parts and the die of the servo press. It includes a current detection device 8 which detects the current value supplied to a servo motor 5 to a screw shaft 4 which joins with a slide 3. A scale detection device 9 detects the position of slide 3. There is feedback of outputs from a current detection device 8 and a scale detection device 9 to a NC control device 6. When or the other of either the load value calculated from the current value or the slide position reaches a set value, a correction value is obtained corresponding to the difference between the other value and its set value. The bottom dead center precision can be improved to the range of 1-few microns.
EP05003258A 2000-10-30 2000-10-30 Bottom dead centre correction device for servo press machines Expired - Lifetime EP1537988B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE60041559T DE60041559D1 (en) 2000-10-30 2000-10-30 Device for adjusting the position of the lowest dead center for a servomotor driven press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00309570A EP1201416B1 (en) 2000-10-16 2000-10-30 Bottom dead center correction device for servo press machine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00309570A Division EP1201416B1 (en) 2000-10-16 2000-10-30 Bottom dead center correction device for servo press machine

Publications (3)

Publication Number Publication Date
EP1537988A2 EP1537988A2 (en) 2005-06-08
EP1537988A3 true EP1537988A3 (en) 2005-06-29
EP1537988B1 EP1537988B1 (en) 2009-02-11

Family

ID=34442842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05003258A Expired - Lifetime EP1537988B1 (en) 2000-10-30 2000-10-30 Bottom dead centre correction device for servo press machines

Country Status (2)

Country Link
EP (1) EP1537988B1 (en)
DE (2) DE60041559D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007144210A1 (en) * 2006-06-16 2007-12-21 Siemens Aktiengesellschaft Method and device for determining the press force in a press
EP2156944A1 (en) 2008-08-21 2010-02-24 Siemens Aktiengesellschaft Drive device for controlling a pressing procedure of a press
CN102198738A (en) * 2011-04-11 2011-09-28 广东锻压机床厂有限公司 Servo dynamic die assembly height compensating mechanism of press
DE102015211622A1 (en) 2015-06-23 2016-12-29 Multivac Sepp Haggenmüller Se & Co. Kg Thermoforming packaging machine with foil punch
PL3222414T3 (en) * 2016-03-24 2020-04-30 Korsch Ag Rotation press with stamps with at least two stamp tips at staggered heights for carrying out multiple pressing processes during a rotation
CN110524942B (en) * 2019-08-02 2024-05-14 南京农业大学 Press bottom dead center adjusting method and system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087398A (en) * 1988-10-20 1992-02-11 Adl Automation Zone Industrielle Process and apparatus for compressing, and monitoring the compression of, pulverulent materials and a press applying same
EP0482360A2 (en) * 1990-10-25 1992-04-29 Robert Bosch Gmbh Motor-driven press with load and displacement sensors
JPH1015698A (en) * 1996-07-02 1998-01-20 Nec Corp Device for detecting bottom dead point of press device
US5813322A (en) * 1995-01-31 1998-09-29 Komatsu Ltd. Die height correcting apparatus for press
US5829347A (en) * 1996-05-21 1998-11-03 Janome Sewing Machine Co., Ltd. Electropressing apparatus
US5887469A (en) * 1996-07-31 1999-03-30 Yazaki Corporation Terminal crimping device
JPH11123600A (en) * 1997-10-20 1999-05-11 Aida Eng Ltd Forming controller for servo press
JP2000246498A (en) * 1999-02-26 2000-09-12 Aida Eng Ltd Measuring and display device of load and forming speed of servo press machine
JP2000280100A (en) * 1999-03-31 2000-10-10 Aida Eng Ltd Bottom dead point correcting device of servo press machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087398A (en) * 1988-10-20 1992-02-11 Adl Automation Zone Industrielle Process and apparatus for compressing, and monitoring the compression of, pulverulent materials and a press applying same
EP0482360A2 (en) * 1990-10-25 1992-04-29 Robert Bosch Gmbh Motor-driven press with load and displacement sensors
US5813322A (en) * 1995-01-31 1998-09-29 Komatsu Ltd. Die height correcting apparatus for press
US5829347A (en) * 1996-05-21 1998-11-03 Janome Sewing Machine Co., Ltd. Electropressing apparatus
JPH1015698A (en) * 1996-07-02 1998-01-20 Nec Corp Device for detecting bottom dead point of press device
US5887469A (en) * 1996-07-31 1999-03-30 Yazaki Corporation Terminal crimping device
JPH11123600A (en) * 1997-10-20 1999-05-11 Aida Eng Ltd Forming controller for servo press
JP2000246498A (en) * 1999-02-26 2000-09-12 Aida Eng Ltd Measuring and display device of load and forming speed of servo press machine
JP2000280100A (en) * 1999-03-31 2000-10-10 Aida Eng Ltd Bottom dead point correcting device of servo press machine

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05 30 April 1998 (1998-04-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 10 31 August 1999 (1999-08-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12 3 January 2001 (2001-01-03) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05) *

Also Published As

Publication number Publication date
DE60041559D1 (en) 2009-03-26
EP1537988A2 (en) 2005-06-08
EP1537988B1 (en) 2009-02-11
DE60041447D1 (en) 2009-03-12

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