The tool is designed to carried out maintenance operations on a bearing assembly comprising a bushing split into at least two shells; the maintenance tool comprises a device arranged to act on and rotate the bushing shells. In particular, the device comprises a slide and a pin; the slide has a hole transversal to its sliding direction and the pin is slidably mounted inside the hole and protrudes from the hole; in a first operating position the pin acts on a shell and in a second operating position the pin does not act on any shell. The method provides to rotate the bushing shells without rotating the supported shaft, and to carry out maintenance operations on a shell at a time while leaving the shaft supported by the other shell.

Provided is a machine tool including: a movable drum base (4); a drum (5) that is incorporated in the drum base (4) and is circular in outline; and a quill main spindle (6) penetrating through the drum (5) in a central axis direction of the drum (5), wherein protrusion allowance from the drum (5) is adjustable, wherein a bearing provided along an outer circumference of the drum (5) is interposed between the drum base (4) and the drum (5) such that the drum (5) is rotatable in the drum base (4), and movement of the drum base (4), rotation of the drum (5), and protrusion allowance adjustment of the quill main spindle (6) from the drum (5) allow a tool (10) mounted on the quill main spindle (6) to be positioned.

Provided is a machine tool including: a movable drum base (4); a drum (5) that is incorporated in the drum base (4) and is circular in outline; and a quill main spindle (6) penetrating through the drum (5) in a central axis direction of the drum (5), wherein protrusion allowance from the drum (5) is adjustable, wherein a bearing provided along an outer circumference of the drum (5) is interposed between the drum base (4) and the drum (5) such that the drum (5) is rotatable in the drum base (4), and movement of the drum base (4), rotation of the drum (5), and protrusion allowance adjustment of the quill main spindle (6) from the drum (5) allow a tool (10) mounted on the quill main spindle (6) to be positioned.

An apparatus and method for supporting an object. In one illustrative embodiment, an apparatus may comprise a support structure, a positioning system, and a retention system. The positioning system may be associated with the support structure and configured to position the support structure with respect to a number of linear axes. The retention system may be associated with the support structure. The retention system may be configured to retain a portion of an object and move the portion of the object towards a platform such that the portion of the object substantially conforms to a shape of the platform.

An apparatus and method for supporting an object. In one illustrative embodiment, an apparatus may comprise a support structure, a positioning system, and a retention system. The positioning system may be associated with the support structure and configured to position the support structure with respect to a number of linear axes. The retention system may be associated with the support structure. The retention system may be configured to retain a portion of an object and move the portion of the object towards a platform such that the portion of the object substantially conforms to a shape of the platform.

A robot system includes a robot including a hand including a plurality of finger sections and a work device in which the robot performs work. The work device includes a first rotating body, a second rotating body configured to rotate in association with rotation of the first rotating body, a grip section provided in the first rotating body, and a setting section provided in the second rotating body, a target object of the work performed by the robot being set on the setting section. The robot grips the grip section with the finger sections to rotate the first rotating body.

A robot system includes a robot including a hand including a plurality of finger sections and a work device in which the robot performs work. The work device includes a first rotating body, a second rotating body configured to rotate in association with rotation of the first rotating body, a grip section provided in the first rotating body, and a setting section provided in the second rotating body, a target object of the work performed by the robot being set on the setting section. The robot grips the grip section with the finger sections to rotate the first rotating body.

A method and a device for machining a workpiece rotating about a rotational axis. The machining point moves along the cutting edge of a cutting edge plane and the surface to be machined in a rolling movement on an advancement plane not intersected by the rotational axis. A pivot drive implements a large enough pivot angle so that a first workpiece surface is machined by a machining point moving along the first cutting edge in a first machining step. In a second machining step, a second workpiece surface is machined, wherein the machining point moves along the second cutting edge and the second workpiece surface. The cutting edge has a curvature radius smaller than the distance from the pivot axis of the holder to the cutting edge. The holder can additionally be displaced on the advancement plane with a movement component in a direction transverse to the rotational axis.

A method and a device for machining a workpiece rotating about a rotational axis. The machining point moves along the cutting edge of a cutting edge plane and the surface to be machined in a rolling movement on an advancement plane not intersected by the rotational axis. A pivot drive implements a large enough pivot angle so that a first workpiece surface is machined by a machining point moving along the first cutting edge in a first machining step. In a second machining step, a second workpiece surface is machined, wherein the machining point moves along the second cutting edge and the second workpiece surface. The cutting edge has a curvature radius smaller than the distance from the pivot axis of the holder to the cutting edge. The holder can additionally be displaced on the advancement plane with a movement component in a direction transverse to the rotational axis.

A table device including a first member; a second member; a first guide device guiding the second member such that the second member is moved in a direction parallel to a first axis by movement of the first member; a table supported by the second member; a third member connected to at least a part of the table; a bearing member forming a gas bearing between the bearing member and the third member with a gas supplied between the bearing member and the third member, and movably supporting the third member in the direction parallel to the first axis; and a support device including a parallel pin that is arranged such that the parallel pin becomes parallel to the first axis, and connects the second member and the table, and supporting the table. The table is supported by the second member through the support device.