A machine tool includes a rotation indexing device. The rotation indexing device includes a frame accommodates a rotary shaft, a drive motor rotationally drives the rotary shaft, a drive transmission mechanism accommodated in a space inside the frame, and a detection device. The drive transmission mechanism includes a gear mechanism, and the space includes one or more storage parts for storing lubricating oil. The detection device detects a height position of an oil level of the lubricating oil, and is provided on a one-to-one basis with respect to a detection target storage part, which is set as a detection target, of the one or more storage parts.

The present invention relates to a positioning device for rotatably and rectilinearly positioning a card with respect to a treatment unit having an axis of treatment. The positioning device comprises a card holder for holding a card in a fixed position, wherein the card holder defines a virtual card surface plane coincident with the surface of a card facing the treatment unit once the card is placed in the card holder, and wherein the card holder defines a virtual card center point coincident with the intersection point of the axis of treatment and the virtual card surface plane. The positioning device further comprises a manipulator to which the card holder is attached, wherein the manipulator comprises: a cardanic element with a first axis of rotation and a second axis of rotation; and a virtual pivot point being the intersection of the first and the second axis of rotation.

The machine tool has a machine bed having a first horizontal linear guide and a second horizontal linear guide arranged at right angles to the first linear guide. On the first linear guide is arranged, in an axially displaceable manner, a workpiece clamping fixture, which is swivelable about a swivel axis oriented parallel to the second linear guide and is rotatable about a rotation axis oriented at right angles to the swivel axis. On the second linear guide a toque motor driven swivel arm is axially displaceable, the swivel axis of which is arranged parallel to the first linear guide and which on its free end bears a tool spindle, the axis of which is oriented parallel to the first linear guide.

A workpiece lifting and lowering device is provided with: a workpiece base supported as to be capable of being lifted and lowered, and mounting a workpiece; a link mechanism connected to the workpiece base, and lifting and lowering the workpiece base by converting a rotation motion to a lifting and lowering motion; and a driving mechanism rotationally driving the link mechanism through a transmission member.

The machine tool has a machine bed (10) having a first horizontal linear guide (1) and a second horizontal linear guide (2) arranged at right angles to the first linear guide (1). On the first linear guide (1) is arranged, in an axially displaceable manner, a workpiece clamping fixture (3), which is swivelable about a swivel axis (4) oriented parallel to the second linear guide (2) and is rotatable about a rotation axis (5) oriented at right angles to the swivel axis (4). On the second linear guide (2) a toque motor driven swivel arm (6) is axially displaceable, the swivel axis (7) of which is arranged parallel to the first linear guide (1) and which on its free end bears a tool spindle (8), the axis (9) of which is oriented parallel to the first linear guide (1).

A machine tool includes a rotation indexing device. The rotation indexing device includes a frame accommodates a rotary shaft, a drive motor rotationally drives the rotary shaft, a drive transmission mechanism accommodated in a space inside the frame, and a detection device. The drive transmission mechanism includes a gear mechanism, and the space includes one or more storage parts for storing lubricating oil. The detection device detects a height position of an oil level of the lubricating oil, and is provided on a one-to-one basis with respect to a detection target storage part, which is set as a detection target, of the one or more storage parts.

A workpiece lifting and lowering device is provided with: a workpiece base supported as to be capable of being lifted and lowered, and mounting a workpiece; a link mechanism connected to the workpiece base, and lifting and lowering the workpiece base by converting a rotation motion to a lifting and lowering motion; and a driving mechanism rotationally driving the link mechanism through a transmission member.

The present invention relates to a positioning device for rotatably and rectilinearly positioning a card with respect to a treatment unit having an axis of treatment. The positioning device comprises a card holder for holding a card in a fixed position, wherein the card holder defines a virtual card surface plane coincident with the surface of a card facing the treatment unit once the card is placed in the card holder, and wherein the card holder defines a virtual card center point coincident with the intersection point of the axis of treatment and the virtual card surface plane. The positioning device further comprises a manipulator to which the card holder is attached, wherein the manipulator comprises: a cardanic element with a first axis of rotation and a second axis of rotation; and a virtual pivot point being the intersection of the first and the second axis of rotation.