Title:
DRIVE CONTROLLER FOR MACHINE TOOL
Document Type and Number:
WIPO Patent Application WO/2001/043914
Kind Code:
A1
Abstract:
Every time the total number of rotations of a spindle motor (11) reaches a value set in a positional data table (T), a CPU (22) reads out the movement positions of a work and a tool at the reached total number of rotations and the movement positions at the total number of rotations to be reached next from a positional data storage section (25) and reads out the moving speed characteristics between the reached total number of rotations and the next total number of rotations to be reached from a moving speed characteristics storage section (27) according to an auxiliary operation command on the positional data table (T). Subsequently, the CPU (22) divides the interval between as a starting point, the time of the reached total number of rotations and, as a finish point, the time of the next total number of rotations with specified timings and defines the movement positions of the work and the tool at the division timings based on the read movement positions of the work and the tool and the read moving speed characteristics.
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Inventors:
ENDO NOBUYUKI (JP)
KURIHARA SHIGEYUKI (JP)
KURIHARA SHIGEYUKI (JP)
Application Number:
PCT/JP2000/008469
Publication Date:
June 21, 2001
Filing Date:
November 30, 2000
Export Citation:
Assignee:
STAR MFG CO (JP)
ENDO NOBUYUKI (JP)
KURIHARA SHIGEYUKI (JP)
ENDO NOBUYUKI (JP)
KURIHARA SHIGEYUKI (JP)
International Classes:
B23Q15/00; G05B19/21; G05B19/4103; G05B19/414; G05D3/00; G05D3/12; (IPC1-7): B23Q15/013; B23Q15/00
Foreign References:
| JPH06110532A | 1994-04-22 | |||
| JPH08123520A | 1996-05-17 | |||
| JPS5227975A | 1977-03-02 |
Other References:
See also references of EP 1163978A4
Attorney, Agent or Firm:
Hasegawa, Yoshiki (Ginza 2-chome Chuo-ku, Tokyo, JP)
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