A machining centre comprising a machining plane; a subtractive unit for performing chip removal on a workpiece positioned on the machining plane; the subtractive unit comprising a first carriage that is slidable parallel to an operating axis; an additive unit arranged to perform machining by additive production techniques on the machining plane; the additive unit comprising a second carriage that is slidable along the operating axis. The additive unit is provided with a first coupling portion and said subtractive unit is provided with a second coupling portion couplable with the first coupling portion. In one step, the subtractive unit adopts a pick-up configuration in which the first coupling portion is coupled with the second coupling portion to connect the subtractive unit to the additive unit at least along the operating axis. In the pick-up configuration, the subtractive unit, connected to the additive unit, is configured to move the additive unit.

A clamping device and a method for handling a workpiece or a unit comprising a workpiece and a workpiece holder. An automatic workpiece exchange is enabled by using a tool spindle. For this a spindle adapter is present that can be releasably connected with the workpiece holder. By means of the spindle adapter, the unit comprising the workpiece and the workpiece holder can be transported. The clamping device can be switched between a release condition and a clamping condition by means of a movement of an operating element. This movement can be carried out by means of the tool spindle, in that the tool spindle engages the operating element directly or indirectly by means of the spindle adapter or an operating tool.

A machine tool chip removal device including a coupling interface to couple with a rotatable spindle of a machine tool to facilitate rotation of the machine tool chip removal device about an axis at a rotational speed. The chip removal device can also include a main fluid channel with an opening to receive pressurized fluid from the machine tool. The chip removal device can further include a first fluid delivery channel and a second fluid delivery channel to direct fluid in different directions. Each fluid delivery channel can be in fluid communication with the main fluid channel. In addition, the chip removal device can include one or more valves associated with the first and second fluid delivery channels to selectively allow fluid passage from the main fluid channel to the fluid delivery channels. The one or more valves can be actuated by varying fluid pressure and/or rotational speed.

Provided is a machine tool hand including a body portion that is mounted so as to be attachable to and detachable from a spindle of a machine tool, and that is provided with a flow path connected to a coolant-liquid supply path formed in the spindle; and two or more hand members that are attached to the body portion such that at least one of the hand members is pivotable about a prescribed axis, and that are capable of gripping an object therebetween by being closed. The flow path is provided with discharge ports via which a coolant liquid supplied from the coolant-liquid supply path is discharged toward surfaces of the hand members that are exposed to an outside, and a pressure of the coolant liquid causes an opening operation or a closing operation of the hand members.

A spindle device is mountable with a tool holder, and includes a rotating spindle rotatably mounted to a spindle main body and extending axially to have an axial end surface. A contactless power transmission module is disposed on a flange end surface of the spindle main body and an outer peripheral wall of the rotating spindle for supplying power. An electrically connecting module includes two conductive units each disposed in the rotating spindle and electrically connected with the power transmission module. Each conductive unit has an electrically conductive post extending axially and exposed from the axial end surface for conducting the power to the tool holder.

The present disclosure relates to a machine tool including a bed, a table tiltably installed on the bed and configured such that a workpiece is seated on the table, a saddle movably installed on the bed, a column movably installed on the saddle, a spindle movably and tiltably installed on the column and configured to clamp or unclamp a tool and process a workpiece, and a stacking unit configured to perform stacking processing on the workpiece, in which the stacking unit is detachably mounted on the spindle while substituting for a tool to be clamped to the spindle and changing a mounting position of the stacking unit depending on a stacking processing position of the workpiece.

A machine tool chip removal device including a coupling interface to couple with a rotatable spindle of a machine tool to facilitate rotation of the machine tool chip removal device about an axis at a rotational speed. The chip removal device can also include a main fluid channel with an opening to receive pressurized fluid from the machine tool. The chip removal device can further include a first fluid delivery channel and a second fluid delivery channel to direct fluid in different directions. Each fluid delivery channel can be in fluid communication with the main fluid channel. In addition, the chip removal device can include one or more valves associated with the first and second fluid delivery channels to selectively allow fluid passage from the main fluid channel to the fluid delivery channels. The one or more valves can be actuated by varying fluid pressure and/or rotational speed.

The disclosed embodiments provide a novel and unique apparatus and method to remove swarf from a workpiece during the operation of a machine tool on that workpiece. In a preferred embodiment, a set of slanted vanes attached to a rotating part of the machine tool, when that rotating part is directed at the workpiece, clears swarf from a workpiece during machine operation without having to add any other expensive swarf removal parts, or integrate any complicated swarf removal system into the machine tool. The vanes on the rotating part, using the motion of that rotating part, provide the required force of air to blow swarf out and away from the workpiece. Among the many different possibilities contemplated, the rotating part can be a spindle, or a tool holder, or an endmill, or any other rotating part of a machine tool pointed at the workpiece during the operation of the machine. Additionally, the set of slanted vanes can attach to an inner hub fitted around or onto the rotating part and the slanted vanes can spin free of any other parts if the composition of the vanes with any metallic or non-metallic material make the vanes sufficiently stiff to provide the necessary air force on the workpiece during the operation of the machine and the high speed of the rotating part. Also, the outer edge of the slanted vanes can connect to a shroud surrounding the vanes and thus keep the slanted vanes in the required slanted position to produce the necessary force of air on the workpiece. Additionally, O-rings can be used to fit the inner hub to the rotating part and thus provide another way to create the firm and secure attachment of the machine tool swarf removal apparatus to the rotating part.

A body member (110) of a coolant medium spray device (100) is attachable to a main shaft (10) of a machine tool. A rotating part of a pump (300) is connected to the body member. The body member and the rotating part are rotatably supported within an interior space of a support part, which may be constituted by a cover (210), a case (220) and a ring member (225). When the body member is attached to the main shaft, the support part is also fixed to the machine tool so that the support part is non-rotatable relative to the machine tool. In this state, cooling medium that is being supplied via the main shaft is pressurized by the pump and then sprayed out of a spray port (242) of a nozzle (240) that is mounted in a nozzle mounting hole (231) of a cap (230) affixed to the support part.

A workpiece holding fixture is provided herein. The workpiece holding fixture includes a baseplate including an engagement surface. A first static riser including a position control member is configured to removably couple a workpiece to the first static riser. A second static riser includes a rotation control member and is configured to removably couple the workpiece to the second static riser. A dynamic riser is configured to abut the workpiece, the dynamic riser being movable by a spindle.