NUMERICALLY CONTROLLED LATH AND METHOD OF MACHINING WORK BY THIS NUMERICALLY CONTROLLED LATH

WIPO Patent Application WO/2002/092266

A1

A numerically controlled machine tool that is capable of simultaneously effecting a variety of machining operations using work on a first main shaft and work on a second main shaft, with a high machining efficiency. A first tool post (300) is movable together with a second main shaft (210) in the direction of a main shaft axis (C2) and in a direction (X1) orthogonal thereto in a plane, while a second tool post (400) is movable at least in the same biaxial direction as the directions of movement of the first tool post (300). A control device superposes the uniaxial or biaxial movement required for the first tool post (300) to machine work (W1) on the uniaxial or biaxial movement required for the second tool post (400) to machine work (W2) and issues an instruction for movement to the first tool post (300) or second tool post (400), so that the machining operation of the work (W1) by the tool on the first tool post (300) and the machining operation of the work (W2) by the tool on the second tool post (400) are simultaneously effected.

SHINOHARA HIROSHI (JP)
SAITOU TAKAYASU (JP)
TSUYUSAKI UMEO (JP)
TAKAHASHI TORU (JP)

PCT/JP2002/004259

November 21, 2002

April 26, 2002

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CITIZEN WATCH CO LTD (JP)
SHINOHARA HIROSHI (JP)
SAITOU TAKAYASU (JP)
TSUYUSAKI UMEO (JP)
TAKAHASHI TORU (JP)

B23Q39/02; B23Q39/04; (IPC1-7): B23B3/30

JPS60232802A	1985-11-19
JPH0248101A	1990-02-16
JPH0379201A	1991-04-04
JPH07227701A	1995-08-29
JPS5748402A	1982-03-19
JPH06702A	1994-01-11
JPH04159058A	1992-06-02

None

Watanabe, Kihei (5th Floor 32, Kanda Suda-cho 1-chom, Chiyoda-ku Tokyo, JP)

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