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公开(公告)号：US20180264610A1
公开(公告)日：2018-09-20
申请号：US15869006
申请日：2018-01-11
CPC分类号： B23Q11/005 , B23B31/207 , B23B2260/126 , B23B2270/30 , B23Q11/1015 , B23Q11/103 , B23Q11/1084
摘要： The invention provides a machine tool capable of facilitating a process of mounting a fluid supplying unit to a spindle supporting unit. The machine tool comprisies a rotating unit including a spindle provided with a workpiece chucking unit, a supporting unit which rotatably supports the spindle around a spindle axis, and a fluid supplying unit removably mounted on the supporting unit to supply fluid to the chucking unit via the spindle. The fluid supplying unit has an insert to be received in the rotating unit in the direction of the spindle axis. A labyrinth clearance is formed between the outer circumferential surface of the insert and the inner circumferential surface of the rotating unit when the fluid supplying unit is mounted on the supporting unit. The labyrinth clearance allows rotation of the rotating unit and restricts leak of fluid from the spindle when the rotating unit is rotated.
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公开(公告)号：US10226845B2
公开(公告)日：2019-03-12
申请号：US15869006
申请日：2018-01-11
摘要： A machine tool capable of facilitating a process of mounting a fluid supplying unit to a spindle supporting unit is provided. The machine tool has a rotating unit including a spindle provided with a workpiece chucking unit, a supporting unit which rotatably supports the spindle around a spindle axis, and a fluid supplying unit removably mounted on a rear end of the supporting unit to allow fluid flow inside the spindle toward the chucking unit. The fluid supplying unit has an insert to be received in the rotating unit in the direction of the spindle axis. A labyrinth clearance is formed between the outer circumferential surface of the insert and the inner circumferential surface of the rotating unit when the fluid supplying unit is mounted on the rear end of the supporting unit. The labyrinth clearance allows rotation of the rotating unit and restricts leakage of the supplied fluid from inside the spindle when the rotating unit is rotated.
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公开(公告)号：US12005511B2
公开(公告)日：2024-06-11
申请号：US17827445
申请日：2022-05-27
CPC分类号： B23B29/326 , B23B13/02 , B23B27/065 , B23Q2039/008 , B23Q39/027
摘要： A machine tool includes a spindle capable of holding a workpiece and rotatable on a spindle axis and a tool post on which a tool is attachable to machine the workpiece held by the spindle. The tool post includes a first turnable holder turnable on a first turning axis perpendicular to the spindle axis. The first turnable holder has a first tool unit mounting part where a rotary tool is attachable. The tool post further includes a second turnable holder turnable on a second turning axis perpendicular to the spindle axis and different from the first turning axis. The second turnable holder has a second whirling tool mounting part where a thread whirling tool is attachable.
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