A rotary table assembly for supporting a workpiece can include a table having a table top surface positioned in a first plane, where the table has a first axis of rotation. The rotary table assembly can also include a support frame having a support surface spaced apart from the first axis of rotation at a first precise, predetermined distance. The support surface is positioned in a second plane at least substantially parallel to the first plane and spaced apart from the first plane at a second precise, predetermined distance. The rotary table assembly can also include a workpiece positioner fixedly connectable to the table, where the workpiece positioner has at least one support for supporting a workpiece off the table top surface, and the at least one support has at least a second axis of rotation. The rotary table assembly can further include a gearbox for precisely rotating the table.

A rotary table assembly for supporting a workpiece can include a table having a table top surface positioned in a first plane, where the table has a first axis of rotation. The rotary table assembly can also include a support frame having a support surface spaced apart from the first axis of rotation at a first precise, predetermined distance. The support surface is positioned in a second plane at least substantially parallel to the first plane and spaced apart from the first plane at a second precise, predetermined distance. The rotary table assembly can also include a workpiece positioner fixedly connectable to the table, where the workpiece positioner has at least one support for supporting a workpiece off the table top surface, and the at least one support has at least a second axis of rotation. The rotary table assembly can further include a gearbox for precisely rotating the table.

A machine tool for the computer-controlled machining of workpieces includes a machine stand and at least two clamping devices which are maintained next to each other in an adjusting and mobile manner, at least one tool receiving element being formed with one of the clamping devices and at least one tool receiving element being formed with the other clamping device. The clamping devices are maintained in an adjusting and mobile manner in the machine stand by a rotating mechanism including at least two rotational axes which are connected in series and which intersect each other. At least one linear guide is embodied between at least one of the clamping devices and the machine stand.

A mechanism geometrically constituted with twelve axes can be manipulated for spherical coordinate kinematics. Concerning the major improvement of the invention, one of the two geometric tetrahedron frames which were ever specified by our two pre-inventions (U.S. Pat. No. 8,579,714 B2/US20120083347A1 and US20150082934A1) is decoupled and reconstructed as two separated terminal frames which are constituted by two individual geometric arcs. The other one of the two geometric tetrahedron frames without changing its original geometric definition is inherited in the invention and renamed as a base frame. Comparing to the original single geometric tetrahedron, the mechanism newly developed by two individual geometric arcs is suffering fewer constraints and gaining more work space. If a terminal saddle is equipped onto a terminal frame, the newly developed mechanism can be increased extra payload capability. Therefore, this improvement is substantially extending the utility of twelve axes mechanism for spherical coordinate kinematics.

A mechanism geometrically constituted with twelve axes can be manipulated for spherical coordinate kinematics. Concerning the major improvement of the invention, one of the two geometric tetrahedron frames which were ever specified by our two pre-inventions (U.S. Pat. No. 8,579,714 B2/US20120083347A1 and US20150082934A1) is decoupled and reconstructed as two separated terminal frames which are constituted by two individual geometric arcs. The other one of the two geometric tetrahedron frames without changing its original geometric definition is inherited in the invention and renamed as a base frame. Comparing to the original single geometric tetrahedron, the mechanism newly developed by two individual geometric arcs is suffering fewer constraints and gaining more work space. If a terminal saddle is equipped onto a terminal frame, the newly developed mechanism can be increased extra payload capability. Therefore, this improvement is substantially extending the utility of twelve axes mechanism for spherical coordinate kinematics.

A mechanism geometrically constituted with twelve axes can be manipulated for spherical coordinate kinematics. Concerning the major improvement of the invention, one of the two geometric tetrahedron frames which were ever specified by our two pre-inventions (U.S. Pat. No. 8,579,714 B2/US20120083347A1 and US20150082934A1) is decoupled and reconstructed as two separated terminal frames which are constituted by two individual geometric arcs. The other one of the two geometric tetrahedron frames without changing its original geometric definition is inherited in the invention and renamed as a base frame. Comparing to the original single geometric tetrahedron, the mechanism newly developed by two individual geometric arcs is suffering fewer constraints and gaining more work space. If a terminal saddle is equipped onto a terminal frame, the newly developed mechanism can be increased extra payload capability. Therefore, this improvement is substantially extending the utility of twelve axes mechanism for spherical coordinate kinematics.

A mechanism geometrically constituted with twelve axes can be manipulated for spherical coordinate kinematics. Concerning the major improvement of the invention, one of the two geometric tetrahedron frames which were ever specified by our two pre-inventions (U.S. Pat. No. 8,579,714 B2/US20120083347A1 and US20150082934A1) is decoupled and reconstructed as two separated terminal frames which are constituted by two individual geometric arcs. The other one of the two geometric tetrahedron frames without changing its original geometric definition is inherited in the invention and renamed as a base frame. Comparing to the original single geometric tetrahedron, the mechanism newly developed by two individual geometric arcs is suffering fewer constraints and gaining more work space. If a terminal saddle is equipped onto a terminal frame, the newly developed mechanism can be increased extra payload capability. Therefore, this improvement is substantially extending the utility of twelve axes mechanism for spherical coordinate kinematics.

A machine tool is provided which comprises a machine base (10), a first support (20,100) mounted on a first rotational machine axis on the base, and a second support (22,102) mounted on a second rotational machine axis on the base. The second rotational axis is parallel to and spaced laterally from the first rotational axis and carries a mount (38,112) moveable relative to the second support along a first linear machine axis orthogonal to the second rotational axis. A control arrangement is operable to control the orientation of the first support on the first rotational axis, and the orientation of the mount relative to the second rotational axis and its location along the linear axis, so as to govern the position and orientation of the first support and the mount relative to each other. Existing machine tools often use long linear guide rails and stacked orthogonal axes which introduce alignment and offset errors. The present invention avoids the need for and/or reduces the number of these structures in machine tools.

A device for processing wheel sets for rail vehicles is shown and described. The device includes support rollers for rotatably holding a wheel set, wherein at least two of the support rollers are assigned to each of the two wheels of the wheel set, wherein at least one of the support rollers has an actuator for rotating the wheel set and/or wherein at least one actuating roller is provided for rotating the wheel set, guide rollers for axial guidance of the wheel set, wherein at least one guide roller is assigned to each of the two wheels of the wheel set, tools for machining the wheel set, in particular the running surfaces and/or the brake disks of the wheelset, wherein at least one tool is assigned to each of the two wheels of the wheel set, and at least one handling device for receiving and moving a thrust bearing for radially fixing the wheel set, wherein at least one handling device is assigned to each of the two wheels of the wheel set. In order to be able to easily and quickly change and replace the thrust bearings used to fix the wheel sets in their position, it is proposed that the one minimally required handling device must have at least two degrees of freedom of movement, in particular at least three degrees of freedom of movement.

A device for processing wheel sets for rail vehicles is shown and described. The device includes support rollers for rotatably holding a wheel set, wherein at least two of the support rollers are assigned to each of the two wheels of the wheel set, wherein at least one of the support rollers has an actuator for rotating the wheel set and/or wherein at least one actuating roller is provided for rotating the wheel set, guide rollers for axial guidance of the wheel set, wherein at least one guide roller is assigned to each of the two wheels of the wheel set, tools for machining the wheel set, in particular the running surfaces and/or the brake disks of the wheelset, wherein at least one tool is assigned to each of the two wheels of the wheel set, and at least one handling device for receiving and moving a thrust bearing for radially fixing the wheel set, wherein at least one handling device is assigned to each of the two wheels of the wheel set. In order to be able to easily and quickly change and replace the thrust bearings used to fix the wheel sets in their position, it is proposed that the one minimally required handling device must have at least two degrees of freedom of movement, in particular at least three degrees of freedom of movement.