Abstract: A threading nozzle for threading a wire electrode for a threading device in a wire electrical discharge erosion machine includes a threading-nozzle body having a guide bore configured to guide the wire electrode along a longitudinal axis of the former and a gap that splits the threading-nozzle body in two parts which are connected at a flexural hinge configured in the threading-nozzle body. The gap splits the guide bore in two parts.

Abstract: The present invention relates to a separation process of natural gas from gaseous compounds present at the wellhead by means of at least two adsorption columns, each containing an adsorbing solid and one operating at a higher pressure than the other, said process being characterized in that: •—the compression ratio is within the range of 1.1 to 10; •—the ratio between the characteristic convective time through the column and the characteristic diffusive time in the adsorbing solid is higher than 1.

Abstract: A threading nozzle for threading a wire electrode for a threading device in a wire electrical discharge erosion machine includes a threading-nozzle body having a guide bore configured to guide the wire electrode along a longitudinal axis of the former and a gap that splits the threading-nozzle body in two parts which are connected at a flexural hinge configured in the threading-nozzle body. The gap splits the guide bore in two parts.

Abstract: The present invention relates to a tool carrier 62 for a machine tool, in particular a lathe, having a rotary shaft drive for a numerically controllable rotary shaft B for rotating the tool carrier 62, a first tool turret head 62A carrying tools, rotatably mounted around a first turret axis, and a second tool turret head 62B carrying tools, rotatably mounted around a second turret axis, the first tool turret head 62A and the second tool turret head 62B being positioned on opposite sides of the tool carrier 62 with respect to the axis of rotation of the rotary shaft B. The present invention also relates to a machine tool, in particular a lathe, having a tool carrier 62 of this type.

Abstract: The present invention relates to a machine tool, in particular a lathe, having a machine frame 1, a first work spindle 21, arranged on a face of a first carrier portion 1a of the machine frame 1, for receiving a first workpiece W1, a second work spindle 22, facing the first work spindle 21 and arranged on a face of second carrier portion 1b of the machine frame 1, for receiving a second work piece W2, the spindle axis of the second work spindle 22 being aligned parallel to, in particular coaxial with, the spindle axis of the first work spindle 21, and two displaceable tool carrier slides 51 and 52 on each of which a tool-carrying tool carrier 61 or 62 is arranged. According to the invention, a third tool carrier 63 is provided which is displaceable between the work spindles 21 and 22 transverse to the spindle axes and which is arranged on a tool carrier face WTS3 of a central carrier portion 1c positioned between the first and the second carrier portion 1a, 1b.

Abstract: The present invention relates to a separation process of natural gas from gaseous compounds present at the wellhead by means of at least two adsorption columns, each containing an adsorbing solid and one operating at a higher pressure than the other, said process being characterized in that: —the compression ratio is within the range of 1.1 to 10; —the ratio between the characteristic convective time through the column and the characteristic diffusive time in the adsorbing solid is higher than 1.

Abstract: The present invention relates to a machine tool, in particular to a lathe, comprising a machine frame 1, a first work spindle 21 which is arranged on a spindle carrier face of the machine frame 1 and is to receive a first workpiece W1, a second work spindle 22 which faces the first work spindle 21, is arranged on a spindle carrier face of the machine frame 1 and is to receive a second workpiece W2, the axis of the second work spindle 22 being aligned parallel, in particular coaxially to the axis of the first work spindle 21, and comprising two movable tool carrier slides 51 and 52, on which a respective tool-carrying tool carrier 61 and 62 is arranged. According to the invention, provided between the work spindles 21 and 22 is a tool carrier 62 which can be moved transversely to the spindle axes, is configured as a tool turret and the turret axis of which is aligned transversely to the spindle axes.

Abstract: The present invention relates to a machine tool, in particular a lathe, comprising a machine frame 1 having a first carrier side TS1 and a second carrier side TS2, wherein the machine frame 1 includes a first carrier portion 1a, a second carrier portion 1b and a middle carrier portion 1c which is arranged between the first and second carrier portions, a first spindle carrier 31 which is arranged on the first carrier side TS1 of the first carrier portion 1a and which holds a first work spindle 21, a first spindle carrier slide 42 which is arranged on the first or second carrier side of the second carrier portion 1b and on which a second spindle carrier 32 is arranged which holds a second work spindle 22 facing the first work spindle 21, wherein the spindle axes are aligned in parallel, in particular coaxially, and wherein the second spindle carrier 32 can be moved in direction W parallel to the spindle axes, and a second tool carrier slide 52 which is arranged on the first carrier side TS1 of the middle portio

Abstract: A thread whirling device for producing a thread on a workpiece on a numerically controlled turning machine by a thread whirling method, having a retention structure for fitting the thread whirling device to the turning machine, a whirling head which is retained on the retention structure, has an opening and carries one or more cutters which are arranged peripherally on the edge of the opening, having a first drive device which is configured to drive the whirling head in a rotational manner about a first rotation axis which extends through the opening. The thread whirling device further includes a second drive device which is configured to drive the whirling head in a rotational manner about a second rotation axis which extends transversely relative to the first rotation axis, in order to orientate an angle between the first rotation axis and the spindle axis of the turning machine work spindle.

Abstract: Disclosed examples relate to loading devices for loading bars for machining in machine tools. A disclosed example loading device is adapted to move a bar from a starting position to an end position and to feed the bar from the end position to the machine tool, comprising a rest portion for supplying the loading device with at least one bar lying on the rest portion in the starting position, and a movable transport for transporting the bar from the starting position to the end position. The transport is adapted to transport the bar downward in a downward movement due to its gravity along a downwardly inclined guiding portion, the bar being supported by a first support portion of the transport.

Abstract: A thread whirling device for producing a thread on a workpiece on a numerically controlled turning machine by a thread whirling method, having a retention structure for fitting the thread whirling device to the turning machine, a whirling head which is retained on the retention structure, has an opening and carries one or more cutters which are arranged peripherally on the edge of the opening, having a first drive device which is configured to drive the whirling head in a rotational manner about a first rotation axis which extends through the opening. The thread whirling device further includes a second drive device which is configured to drive the whirling head in a rotational manner about a second rotation axis which extends transversely relative to the first rotation axis, in order to orientate an angle between the first rotation axis and the spindle axis of the turning machine work spindle.

Abstract: The present invention relates to a tool carrier 62 for a machine tool, in particular a lathe, having a rotary shaft drive for a numerically controllable rotary shaft B for rotating the tool carrier 62, a first tool turret head 62A carrying tools, rotatably mounted around a first turret axis, and a second tool turret head 62B carrying tools, rotatably mounted around a second turret axis, the first tool turret head 62A and the second tool turret head 62B being positioned on opposite sides of the tool carrier 62 with respect to the axis of rotation of the rotary shaft B. The present invention also relates to a machine tool, in particular a lathe, having a tool carrier 62 of this type.

Abstract: The present invention relates to a machine tool, in particular a lathe, comprising a machine frame 1 having a first carrier side TS1 and a second carrier side TS2, wherein the machine frame 1 includes a first carrier portion 1a, a second carrier portion 1b and a middle carrier portion 1c which is arranged between the first and second carrier portions, a first spindle carrier 31 which is arranged on the first carrier side TS1 of the first carrier portion 1a and which holds a first work spindle 21, a first spindle carrier slide 42 which is arranged on the first or second carrier side of the second carrier portion 1b and on which a second spindle carrier 32 is arranged which holds a second work spindle 22 facing the first work spindle 21, wherein the spindle axes are aligned in parallel, in particular coaxially, and wherein the second spindle carrier 32 can be moved in direction W parallel to the spindle axes, and a second tool carrier slide 52 which is arranged on the first carrier side TS1 of the middle portio

Abstract: The present invention relates to a machine tool, in particular to a lathe, comprising a machine frame 1, a first work spindle 21 which is arranged on a spindle carrier face of the machine frame 1 and is to receive a first workpiece W1, a second work spindle 22 which faces the first work spindle 21, is arranged on a spindle carrier face of the machine frame 1 and is to receive a second workpiece W2, the axis of the second work spindle 22 being aligned parallel, in particular coaxially to the axis of the first work spindle 21, and comprising two movable tool carrier slides 51 and 52, on which a respective tool-carrying tool carrier 61 and 62 is arranged. According to the invention, provided between the work spindles 21 and 22 is a tool carrier 62 which can be moved transversely to the spindle axes, is configured as a tool turret and the turret axis of which is aligned transversely to the spindle axes.

Abstract: The present invention relates to a machine tool, in particular a lathe, having a machine frame 1, a first work spindle 21, arranged on a face of a first carrier portion 1a of the machine frame 1, for receiving a first workpiece W1, a second work spindle 22, facing the first work spindle 21 and arranged on a face of second carrier portion 1b of the machine frame 1, for receiving a second work piece W2, the spindle axis of the second work spindle 22 being aligned parallel to, in particular coaxial with, the spindle axis of the first work spindle 21, and two displaceable tool carrier slides 51 and 52 on each of which a tool-carrying tool carrier 61 or 62 is arranged. According to the invention, a third tool carrier 63 is provided which is displaceable between the work spindles 21 and 22 transverse to the spindle axes and which is arranged on a tool carrier face WTS3 of a central carrier portion 1c positioned between the first and the second carrier portion 1a, 1b.

Abstract: Disclosed examples relate to loading devices for loading bars for machining in machine tools. A disclosed example loading device is adapted to move a bar from a starting position to an end position and to feed the bar from the end position to the machine tool, comprising a rest portion for supplying the loading device with at least one bar lying on the rest portion in the starting position, and a movable transport for transporting the bar from the starting position to the end position. The transport is adapted to transport the bar downward in a downward movement due to its gravity along a downwardly inclined guiding portion, the bar being supported by a first support portion of the transport.

Abstract: A piece-threading device on a numerically controlled lathe comprises a supporting assembly having an inner rotatively driven body which, on a side thereof facing a workpiece to be threaded, comprises a plurality of threading tools, the rotatively driven body having a built-in electrical rotor (9) to which an electric stator (8) also built-in in the supporting assembly is operatively coupled, the stator (8) having a plurality of circumferential channels (6) for circulating therethrough a refrigerating and lubricating fluid.

Abstract: A multiple-spindle turning machine has an upright structure supporting a rotary drum which, in turn, supports a plurality of workpiece supporting spindles. On the upright, at each spindle, a cross slide adapted to support a plurality of machining tools to be used for machining the front portion of a workpiece is provided. The machine tool further comprises, in front of the rotary drum, parallel guides which are arranged crosswise of the machine bed, on the guides being slidably mounted two slides each including a workpiece supporting spindle. On the two sides of the machine tool, near each spindle, a vertical slide adapted to support a plurality of machining tools for machining the rear portion of the workpiece is arranged.

Abstract: A piece-threading device on a numerically controlled lathe comprises a supporting assembly having an inner rotatively driven body which, on a side thereof facing a workpiece to be threaded, comprises a plurality of threading tools, the rotatively driven body having a built-in electrical rotor (9) to which an electric stator (8) also built-in in the supporting assembly is operatively coupled, the stator (8) having a plurality of circumferential channels (6) for circulating therethrough a refrigerating and lubricating fluid.