A machine tool comprising: a first spindle; a second spindle provided on a rear headstock to face the first spindle; a barstock supply unit for supplying an elongate rod to the first spindle; and a processing means including a tool for processing the barstock, characterized in that the machine tool further comprises: a workpiece clamp device provided on the rear headstock and adapted to grip a second material comprised of the barstock that has been removed from the first spindle as an old material; and a joining means for joining opposite end portions of the second material gripped by the workpiece clamp device and of a first material gripped by the first gripping means and comprised of a barstock newly supplied by the barstock supply unit, thereby to integrate the second material and the first material into a single barstock.

The invention relates to a transport device (38) for transporting a workpiece (23) between a clamping chuck (22) and a workpiece carrier (30). The transport device (38) comprises a gripper arrangement (39) with a pivot arm (40). One end of the pivot arm (40) is supported on the machine tool (20) and, in particular, a machine slide (25) via a first pivot drive (41) so as to be pivotable about a first pivot axis (S1). On the other end, the pivot arm (40) supports a second pivot drive (42) that defines a second pivot axis (S2). A workpiece gripper (43) is supported so as to be pivotable about this second pivot axis (S2). The two pivot axes are inclined by 45 relative to each other. A workpiece (23) held by the workpiece gripper (43) has a workpiece longitudinal axis (W) that extends in a first position (I) of the workpiece gripper (43) at a right angle with respect to the pivot axis (S1). In a second position (II) of the workpiece gripper (43), the workpiece longitudinal axis (W) is oriented parallel to the first pivot axis (S1). The workpiece longitudinal axis (W) of the workpiece (23) held by the workpiece gripper (43) is inclined by 45 relative to the second pivot axis (S2).

The invention relates to a transport device (38) for transporting a workpiece (23) between a clamping chuck (22) and a workpiece carrier (30). The transport device (38) comprises a gripper arrangement (39) with a pivot arm (40). One end of the pivot arm (40) is supported on the machine tool (20) and, in particular, a machine slide (25) via a first pivot drive (41) so as to be pivotable about a first pivot axis (S1). On the other end, the pivot arm (40) supports a second pivot drive (42) that defines a second pivot axis (S2). A workpiece gripper (43) is supported so as to be pivotable about this second pivot axis (S2). The two pivot axes are inclined by 45 relative to each other. A workpiece (23) held by the workpiece gripper (43) has a workpiece longitudinal axis (W) that extends in a first position (I) of the workpiece gripper (43) at a right angle with respect to the pivot axis (S1). In a second position (II) of the workpiece gripper (43), the workpiece longitudinal axis (W) is oriented parallel to the first pivot axis (S1). The workpiece longitudinal axis (W) of the workpiece (23) held by the workpiece gripper (43) is inclined by 45 relative to the second pivot axis (S2).

Provided is a bar feeder that pushes a rod-shaped workpiece into a hollow main shaft having a holding mechanism at one end of the main shaft, from another end, the bar feeder being arranged in a work room arranged adjacent to a processing room where the main shaft is installed, the work room being provided with a work machine including a transport mechanism for moving an article to and from the processing room, and the bar feeder being arranged at a position at which at least a portion thereof overlaps with the work mechanism in a top view or a front view.

A numerical controller according to the present invention includes: a turning condition designation unit that designates a machining condition of turning; a nicking condition designation unit that designates a machining condition of nicking; a fixed cycle instruction analysis unit that generates an instruction sequence of a turning cycle operation based on the turning machining condition; and a nicking operation instruction generation unit that generates an instruction sequence of a nicking cycle operation based on the turning machining condition and the nicking machining condition. The numerical controller executes the instruction sequence of the nicking cycle operation before executing the instruction sequence of the turning cycle operation.

A numerical controller according to the present invention includes: a turning condition designation unit that designates a machining condition of turning; a nicking condition designation unit that designates a machining condition of nicking; a fixed cycle instruction analysis unit that generates an instruction sequence of a turning cycle operation based on the turning machining condition; and a nicking operation instruction generation unit that generates an instruction sequence of a nicking cycle operation based on the turning machining condition and the nicking machining condition. The numerical controller executes the instruction sequence of the nicking cycle operation before executing the instruction sequence of the turning cycle operation.

The invention relates to a transport device (38) for transporting a workpiece (23) between a clamping chuck (22) and a workpiece carrier (30). The transport device (38) comprises a gripper arrangement (39) with a pivot arm (40). One end of the pivot arm (40) is supported on the machine tool (20) and, in particular, a machine slide (25) via a first pivot drive (41) so as to be pivotable about a first pivot axis (S1). On the other end, the pivot arm (40) supports a second pivot drive (42) that defines a second pivot axis (S2). A workpiece gripper (43) is supported so as to be pivotable about this second pivot axis (S2). The two pivot axes are inclined by 45 relative to each other. A workpiece (23) held by the workpiece gripper (43) has a workpiece longitudinal axis (W) that extends in a first position (I) of the workpiece gripper (43) at a right angle with respect to the pivot axis (S1). In a second position (II) of the workpiece gripper (43), the workpiece longitudinal axis (W) is oriented parallel to the first pivot axis (S1). The workpiece longitudinal axis (W) of the workpiece (23) held by the workpiece gripper (43) is inclined by 45 relative to the second pivot axis (S2).

The method includes a preprocessing transfer step which places an unprocessed rod-like body in a receiving position; a post-processing transfer step which pushes a processed rod-like body with the unprocessed rod-like body, and thus transfers the processed rod-like body to a rail portion; a rail portion transfer step which pushes the processed rod-like body with the unprocessed rod-like body, and thus transfers the processed rod-like body while being guided by the rail portion; a withdrawing step which withdraws the processed rod-like body from the rail portion using a withdrawing unit; a detection step which detects that the processed rod-like body is transferred from the rail portion to the withdrawing unit; and a discharge step which discharges the processed rod-like body from the withdrawing unit in a direction perpendicular to an axis of the processed rod-like body.

A machine tool comprising: a first spindle; a second spindle provided on a rear headstock to face the first spindle; a barstock supply unit for supplying an elongate rod to the first spindle; and a processing means including a tool for processing the barstock, characterized in that the machine tool further comprises: a workpiece clamp device provided on the rear headstock and adapted to grip a second material comprised of the barstock that has been removed from the first spindle as an old material; and a joining means for joining opposite end portions of the second material gripped by the workpiece clamp device and of a first material gripped by the first gripping means and comprised of a barstock newly supplied by the barstock supply unit, thereby to integrate the second material and the first material into a single barstock.

The present invention relates to a socket alignment device for a bar loading magazine for guiding a bar of material to an automatic lathe, wherein a z-axis (z) is defined by the longitudinal axis of a bar of material (2) guided in the bar loading magazine, and wherein a first socket (1), into which the bar of material (2) is to be introduced for processing thereof in the automatic lathe along the z-axis, is arranged in the bar loading magazine, wherein the first socket (1) is mounted so as to be rotatable either coaxially about the z-axis (z) or about a rotational axis () parallel to the z-axis (z) and wherein at least one drive means (6) is included, which can be coupled at least to the first socket (1), specifically to the rotary drive of the first socket (1) about the z-axis (z) in such a manner that the first socket (1) and the cross-sectional profile of the bar of material (2) can be aligned flush with one another for introduction of the bar of material (2).