Global patent index - EP 0896656 A4

EP 0896656 A4 2000-11-22 - ON-MACHINE BALLBAR SYSTEM AND METHOD FOR USING THE SAME

Title (en)

ON-MACHINE BALLBAR SYSTEM AND METHOD FOR USING THE SAME

Title (de)

MASCHINENMONTIERTES BALLSTABSYSTEM UND VERFAHREN ZU DESSEN BENUTZUNG

Title (fr)

SYSTEME DE BARRE A ROTULES MONTE SUR MACHINE ET PROCEDE D'UTILISATION

Publication

EP 0896656 A4 (EN)

Application

EP 96940306 A

Priority

  • US 9617778 W
  • US 669395 P

Abstract (en)

[origin: WO9718436A1] A ballbar socket head (302) is attached to a standard tool head (304) for a CNC machine tool or like device. The socket head can then be parked on the machine tool's tool chain (316) and selectively loaded into the machine tool's spindle (318) under program control by an automatic tool change arm (320). The ballbar socket head (302) is then engaged with a telescopic ballbar attached to a base socket (308). The ballbar and base socket (308) may be peripherally located on the machine's table (310), or automatically placed on the table for test purpose by the machine tool. The ballbar test function may be automatically performed during loading and unloading of the machine, in between production runs, at downtimes, or at periodic predetermined time intervals. When the ballbar equipment is loaded, the machine tool automatically follows a predetermined controlled-motion pattern for a ballbar test. After the test, the ballbar socket head (302) is returned to the machine's tool chain (316) and the ballbar, and the base unit bar and and ballbar are moved, if appropriate. The results of the test are received by a computer and may be displayed for the operator, stored for statistical analysis, or used dynamically to recalibrate the machine's motion control. Preferably, the ballbar sensor (314) communicates with the computer using wireless methods.

IPC 1-7 (main, further and additional classification)

G01B 21/04; B25J 9/22; G01B 5/25; G01B 7/31

IPC 8 full level (invention and additional information)

G01B 5/00 (2006.01); B23Q 15/00 (2006.01); B23Q 17/09 (2006.01); B25J 9/10 (2006.01); G01B 5/004 (2006.01); G01B 21/00 (2006.01); G01B 21/04 (2006.01); G05B 19/401 (2006.01)

CPC (invention and additional information)

G01B 21/042 (2013.01); G01B 5/004 (2013.01); G05B 19/401 (2013.01); G05B 2219/37101 (2013.01); G05B 2219/37619 (2013.01); G05B 2219/50252 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9718436 A1 19970522; AU 7722596 A 19970605; EP 0896656 A1 19990217; EP 0896656 A4 20001122; JP 2000500400 A 20000118

INPADOC legal status

2001-12-12 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010601

2000-11-22 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20001006

2000-11-22 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB

1999-02-17 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19980612

1999-02-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB