The invention relates to a machining device for the machine-assisted production and machining of dental workpieces (16), particularly of artificial teeth and/or other dental replacement parts, the at least one workpiece (16) being clamped in at least one workpiece retainer (11) which can be raised, lowered and rotatably driven, is positioned on a rotational axis (9), and, for the purpose of machining, feeds said workpiece (16) to at least one tool spindle (4, 5, 6) that is rotationally driven and has a tool (7) secured thereto, an additional tool retainer (2, 2a, 2b) with a plurality of tools (7) arranged thereupon being associated with said workpiece retainer (11, 11a, 11b) and lying opposite on one side thereof, and a workpiece changer (22, 22a, 22b) which receives the workpieces (16, 16a, 16b, 16c) to be machined, such that they can be exchanged, being arranged on the other side of said workpiece retainer (11, 11a, 11b).

A combined machining apparatus includes a tool holder, a first automatic exchanger capable of containing at least one laser machining head and mounting the at least one laser machining head on the tool holder, and a second automatic exchanger capable of containing at least one mechanical machining tool and mounting the at least one mechanical machining tool on the tool holder.

In one aspect, a swiss-type machine tool is provided that includes a workpiece holding shaft, a workpiece supporting shaft, and a tool holder associated with the workpiece supporting shaft for holding at least one tool. The machine tool includes a drive operable to rotate the workpiece holding shaft and the workpiece supporting shaft around an axis. The workpiece holding shaft has a work holder configured to secure a workpiece to the workpiece holding shaft. The workpiece holding shaft is axially shiftable relative to the workpiece supporting shaft to adjust a position of the workpiece relative to the workpiece supporting shaft. The machine tool further includes a removable workpiece support, such as a guide bushing, configured to be releasably connected to the workpiece supporting shaft and rotate therewith. The workpiece support slidably contacts the workpiece and permits axial movement of the workpiece relative to the workpiece support.

A machine tool includes a workpiece spindle being rotatable about a rotation axis of the workpiece and configured to hold a workpiece such that the workpiece. A tool holding device is rotatable about a tool rotation axis and configured to hold a turning tool via which turning is performed on the workpiece. A movement mechanism is configured to move the tool holding device such that the turning tool rotates relatively to the workpiece toward an arbitrary direction perpendicular to the rotation axis of the workpiece. Control circuitry is configured to execute a machining program, to perform the turning, which includes an additional code which designates a target cutting direction of the arbitrary cutting direction, and to control the movement mechanism to move the turning tool in the target cutting direction with respect to the workpiece while the control circuitry executes the additional code.

The invention provides a machine for grinding a work-piece using a grinding tool. The machine comprises a motor for rotating a spindle having a work-piece holder for holding the work-piece. The machine further provides a tool post for mounting and maneuvering the grinding tool relative to the work-piece. The machine includes a print system for printing printable material to the work-piece via additive manufacturing. The printed material may be used to customize a shape of the work-piece after the work-piece has been grinded or turned in the machine. This combination allows for a reduced machine footprint and increased product accuracy.

A mechanism for machining a workpiece includes a fixing base, a driving member, a connecting member, a cutter, a first guiding sleeve, and a spring. The driving member is positioned above the fixing base. The connecting member is coupled to the driving member. One end of the cutter is fixed to the connecting member, and the cutter is passed through the fixing base to machine the workpiece positioned under the fixing base. The spring is positioned between the connecting member and the fixing base. The spring is compressed when the driving member drives the cutter away from the fixing base to machine the workpiece, and the spring restores to bring the cutter back toward the fixing base after the machining.

A machine tool has at least 5 axes. A tool holder assembly permits a tool holder spindle to be displaced relative to the frame along a first axis of translation and along a second axis of translation perpendicular to the first axis of translation and implementing slides in a plane forming an angle of between +40 and +50 relative to the first axis of translation. A part holder assembly permits a part to be displaced along a third axis of translation perpendicular to the other axes of translation, about a first axis of rotation parallel to the third axis of translation and about a second axis of rotation perpendicular to the first axis of rotation. The length of the precision path connecting the part to the tool via the frame and the assemblies of the machine is less than 1600 mm.

A processing mechanism for machining a workpiece includes a fixing base, a driving member, a connecting member, a cutter and a spring. The driving member is positioned above the fixing base. The connecting member is coupled to the driving member. One end of the cutter is fixed to the connecting member, and the cutter can be driven to pass through the fixing base to machine the workpiece positioned under the fixing base. The spring is positioned between the connecting member and the fixing base. The spring is compressed when the driving member drives the cutter away from the fixing base to machine the workpiece, and the spring under compression biases the cutter back toward the fixing base. The disclosure also supplies a processing device using the processing mechanism.

An improved method of machines grooves forming Pearson notches in a pattern on hollow shell casings for munitions for at least one of increased functionality and/or performance. Rather than running a broach through a hollow casing, a CNC lathe with a multi-axis tool with cutting implement can precisely locate and form grooves along either an interior or an exterior surface of a hollow shell casing.

A machine tool has a clamping device for clamping in workpieces to be machined, a work spindle which is movable relative to the clamping device, a tool magazine wherein tools for machining the workpieces are held available, the tools being selectively clamped into the work spindle, and a spindle gripper to be selectively clamped into the work spindle and being self-holding in its gripping position, said spindle gripper being held available in the tool magazine and being movable between a transfer position to the work spindle and an unloading station in which the spindle gripper releases a work piece remnant received from the clamping device.