Title:
DEVICE FOR CYCLE-MACHINING FREE-FORM MEMBER
Document Type and Number:
WIPO Patent Application WO/1998/041358
Kind Code:
A1
Abstract:
The inner/outer surfaces of a hollow member whose inner/outer surfaces have non-circular curves are machined with high precision at high speeds. The cycle-machining device has a C-axis driving means (54) by which the hollow member is supported at both ends and turned, inner surface machining driving means (98), and an outer surface machining driving means (78), both of which drive linearly an inner surface cutting tool and an outer surface cutting tool respectively in the U-axis and X-axis directions, wherein the X-axis and the U-axis are synchronized with the rotation angle of the C-axis so as to cut the inner/outer surfaces. The cycle machining device further has a position command value output unit (103) which outputs the position command values of the X-axis and U-axis synchronously with the C-axis at the time of actual machining, X-axis and U-axis position deviation calculating units (110, 120) which calculate the respective position deviations, X-axis and U-axis learning control unit (111, 121) which learn correction command values with which the respective position deviations are reduced to zero, store them, and output them synchronously with the C-axis, and X-axis and U-axis adding units (112, 122) by which the correction command values and position deviations of the respective axes are added to each other, and the addition results are outputted as speed commands to the inner surface and outer surface machining driving means.
Inventors:
SHOJI MASAHIRO (JP)
Application Number:
PCT/JP1998/001009
Publication Date:
September 24, 1998
Filing Date:
March 11, 1998
Export Citation:
Assignee:
KOMATSU MACHINE TOOL CORP (JP)
SHOJI MASAHIRO (JP)
SHOJI MASAHIRO (JP)
International Classes:
B23Q15/013; B23B5/24; B23B5/26; B23G1/04; B23Q1/64; B23Q5/34; G05B19/18; (IPC1-7): B23Q15/013; B23B5/24; B23B5/26; G05B19/404
Foreign References:
| JPS5421691A | 1979-02-19 | |||
| JPH07195254A | 1995-08-01 | |||
| JPS5919605A | 1984-02-01 | |||
| JPS6471646A | 1989-03-16 | |||
| JPS6244353A | 1987-02-26 | |||
| JPH0254311A | 1990-02-23 | |||
| JPS5715652A | 1982-01-27 |
Attorney, Agent or Firm:
Matsuzawa, Osamu (11-10 Uchikanda 1-chom, Chiyoda-ku Tokyo, JP)
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