Machine tool
AssigneeNagase Integrex Co., Ltd.
InventorsRyota Shindo, Keiji Uemura
Life of this patent
Estimating the term…
Abstract
A machine tool includes a rotation table unit including a rotation table configured to rotate with respect to a first axis. The rotation table unit is configured to move along a second axis that is orthogonal to the first axis. The machine tool includes a spindle unit including a spindle configured to rotate with respect to a third axis that is orthogonal to the first axis and the second axis. The spindle unit is configured to move along the third axis. The machine tool includes a bed that supports the rotation table unit and the spindle unit. A front part of an upper surface of the bed includes a recess in which the rotation table unit is arranged. The spindle unit is located at a rear part of the upper surface of the bed.
Claims15
A machine tool, comprising:
- a rotation table unit including a rotation table configured to rotate with respect to a first axis, the rotation table unit being configured to move along a second axis that is orthogonal to the first axis;
- a spindle unit including a spindle configured to rotate with respect to a third axis that is orthogonal to the first axis and the second axis, the spindle unit being configured to move along the third axis;
- a bed that supports the rotation table unit and the spindle unit;
- a rotation oil hydrostatic bearing that supports the rotation table such that the rotation table is rotatable with respect to the first axis;
- and
- a linear movement oil hydrostatic bearing that supports the rotation table unit such that the rotation table unit is movable along the second axis, wherein
- a front part of an upper surface of the bed includes a recess in which the rotation table unit is arranged,
- the spindle unit is located at a rear part of the upper surface of the bed, and
- the rotation oil hydrostatic bearing is located on a same height as the linear movement oil hydrostatic bearing.
A machine tool, comprising:
- a spindle unit including a spindle configured to rotate with respect to a horizontal axis, the spindle unit being configured to move along the horizontal axis;
- and
- linear motors respectively arranged on opposite sides of the spindle unit, the linear motors being configured to move the spindle unit along the horizontal axis,
- wherein a center of gravity of the spindle unit is located in a range of a thickness of each of the linear motors in an up-down direction of the linear motors.
A machine tool, comprising:
- a rotation table unit including a rotation table configured to rotate with respect to a first axis, the rotation table unit being configured to move along a second axis that is orthogonal to the first axis;
- a spindle unit including a spindle configured to rotate with respect to a third axis that is orthogonal to the first axis and the second axis, the spindle unit being configured to move along the third axis;
- and
- linear motors respectively arranged on opposite sides of the spindle unit, the linear motors being configured to move the spindle unit along the third axis,
- wherein a center of gravity of the spindle unit is located in a range of a thickness of each of the linear motors in an up-down direction of the linear motors.
Dependencies are inferred from the claim text.