NUMERIC CONTROL LATHE AND METHOD FOR CONTROLLING THE SAME

WIPO Patent Application WO2002025388

A8

A numeric control lathe (10) comprises a controller (24) for controlling the operation of at least one of the spindles (14, 16) and at least one of the tool rests (18, 20) on a lathe base (12) along a plurality of control axes in a plurality of systems. The controller (24) comprises an input section (100) for inputting a plurality of machining programs about a plurality of tools (22) provided to at least one tool rest, a storage section (112) having a plurality of program describing areas (S1, S2, S3) corresponding to the systems respectively for describing and storing therein the inputted machining programs in the program describing areas, and a processing section (116) for assigning the control axes, as reference control axes, to the program describing areas in the memory section and applying a reference control axis, assigned to a program describing area selected arbitrarily from the program describing areas where a machining program for specifying a tool is written, to a practical control axis for controlling the machining operation related to a specified tool specified by one of the machining programs.

FUJINAWA TADASHI (JP)
ISHIMURA TOSHIO (JP)

PCT/JP2000/006534

July 18, 2002

September 22, 2000

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CITIZEN WATCH CO LTD (JP)
FUJINAWA TADASHI (JP)
ISHIMURA TOSHIO (JP)

B23B3/16; G05B19/19; G05B19/4155; (IPC1-7): G05B19/18; G05B19/4155; B23B7/02

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