Turning – Lathe – Vertical
Reexamination Certificate
2005-06-07
2005-06-07
Wellington, A. L. (Department: 3722)
Turning
Lathe
Vertical
C082S162000, C409S235000
Reexamination Certificate
active
06901830
ABSTRACT:
In a vertical lathe of an open side column type, a pair of linear guides (65,66) arranged in parallel in a cross rail (62), and a space portion (67) is formed between them (65,66). A saddle (90) is supported by the linear guides (65, 66) above the space portion (67) and moved in an axis direction (X axis). A ram (120) is suspended through the space portion (67) and moved in a vertical direction (X axis). A rotary driving disc (34) fixed on the table rotation driving shalt (33) is connected to a rotary table (30) by plural torque transmission pins (37) in torque transmission relationship. Thereby, the rotary table (30) rotates in carrier method. A tool holder (151) is rotatably driven at an optional angle position (B axis position) by a B axis servomotor (163) about a horizontal axis. The tool holder (151) is clamped at an optional rotation angle position by a thrust static pressure bearing under oil-pressure supply to one of thrust static pressure portions. The tool angle is changeable by using the B axis servomotor (163).
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Kawatsu Kazushi
Yamasaki Hiromi
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Toshiba Kikai Kabushiki Kaisha
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