Abstract:
The invention concerns a work element having two degrees of mobility. Said element can move two mobile links with the aid of two motors, one of the links acting upon the work element. The method is characterized by simultaneous action on a work element with the aid of another mobile link. The invention is also characterized by the guidance of a work element having two degrees of mobility and two motors. One of said motors is located at the base and is connected kinematically to one end of the first mobile link that is located at the base and is capable of moving and the other motor is kinematically connected to one end of the second mobile link. The work element is connected to the other end of the second mobile link.
Abstract:
A parallel mechanism includes three expandable linear actuators (5,12,13); drive means for supporting the proximity ends of the linear actuators (5,12,13) so that they can move along guide rails (2,6,7), at least one of the guide rails including slopes (102, 103) on which the actuators (12, 13) run with their levels varying; a stage support (23) held by the distal ends of the linear actuators (5, 12, 13); and a wafer holder (24) attached to a moving member for holding a workpiece.
Abstract:
The object of the present invention is a device (1) for moving a load and for the control thereof, particularly for regulating the positioning and/or orientation of a first plane, for example that is integral with an automatic machine, with respect to a reference plane or a direction, for example that of the force of gravity. More specifically, the present invention consists of a device that makes it possible to move at least a number of points of the lower portion of an automatic machine and/or of the surface of an object along at least one axis (C), so as to regulate the orientation and/or inclination of the machine and/or object with respect to a reference direction.
Abstract:
The invention relates to a parallel positioning mechanism, especially for machining and/or manipulation and/or measuring, consisting of a platform for the carrying and/or manipulation with, for instance, a tool, a workpiece, a measuring device or the like, wherein the platform is connected with the machine frame by means of at least one positioning arm, characterised in that the platform (3) is joint-connected with at least one sliding guide (4) via at least three rotatable joints (11) of which at least two are arranged on a positioning arm (6) for the connection with the sliding guide (4), wherein the axes of rotation of the rotatable joints are mutually parallel. The direct connection may be replaced by a plurality of positioning arms (6), in which case the connection of the platform (3) with the sliding guide(s) (4) is achieved by means of at least four positioning arms (6).
Abstract:
A lathe base assembly is disclosed that decreases vibration and increases thermal stability in a lathe utilizing either a cast iron or composite base (12). Two separate pairs of rails (38, 40; 22, 24) mounted offset from each other are provided for mounting a secondary spindle (44) and a tool turret (32), respectively. Vibration from the tool turret caused by the machining operation is thus isolated from the secondary spindle (and vice-versa). If a second tool turret is provided with the lathe, a third separate pair of rails (60, 62) can also be provided for mounting the second tool turret to increase vibration isolation. If a cast iron base is provided, cavities can be provided in the base for filling with a vibration damping material, such as a polymer composite. Alternatively, the base can be constructed from a composite material, and especially a polymer composite.
Abstract:
The inventive machine tool (10) has a machine frame (59) and a spindle nose (12) arranged on said frame. The spindle nose (12) can travel in a horizontal plane (X/Y) to any chosen point to machine a workpiece (54). Two variable-length structures are mounted at a distance from each other on the machine frame (54), in such a way that they can each swivel around one vertical axis (16, 17) and on the spindle nose (12) in such a way that they can each swivel around another vertical axis (23), towards each other.
Abstract:
The invention is a numerical control machine comprising in its main parts a bearing structure-frame suited to support the various other parts, at least one lower surface (4), at least one table (7) suited to hold a workpiece (3) and mounted on said lower surface (4) and at least one head (8) with an electric tool-holding spindle (81), and wherein said lower surface (4) is inclined.
Abstract:
A device (56) for removing a coating formed in a slot (88) of a stator core (58) comprising a carriage assembly (10) including a nozzle (12) for spraying blasting media. The carriage assembly (10) is movably attached to a guide rail assembly (59) to enable movement of the carriage (24) in a longitudinal direction. The device (56) also includes a drive screw (76) wherein rotation of the drive screw (76) moves the carriage assembly (10) in the longitudinal direction. In addition, the device (76) includes another guide rail assembly (16) that is attached to the carriage (24) wherein said guide rail assembly (16) enables movement of the nozzle (12) in a direction transverse to the longitudinal direction. Further, the device includes another drive screw (32) wherein rotation of said drive screw (32) moves the nozzle (12) relative to the carriage (24) along the transverse axis (23).