Abstract: A device for cutting tubular and rod-shaped work pieces using the whirling method includes a whirling unit on which a holder mounted so as to rotate, connected with a drive, for a saw blade having internal teeth is disposed. The holder and saw blade are provided with corresponding reference mechanisms for fixation of the saw blade in a defined position. The device also includes a mechanism for automatic replacement of the saw blade. A saw blade having internal teeth is also provided for use in this device. The saw blade has at least two indexing bores and at least two gripping openings, which are disposed offset relative to one another.

Abstract: A flying saw has at least one guide rail, on which a saw apparatus is mounted so as to be displaceable along a profile or pipe material to be cut to predetermined lengths, by way of at least one travel drive, particularly synchronous to the advancing movement of the profile or pipe material during cutting. The saw apparatus is disposed within a frame element that is mounted so as to be displaceable on the guide rail. The saw apparatus is releasably connected with the frame element.

Abstract: A flying saw has at least one guide rail, on which a saw apparatus is mounted so as to be movable along profile or pipe material to be cut to predetermined lengths, by way of at least one travel drive, particularly synchronous to the advancing movement of the profile or pipe material during cutting. The at least one guide rail as well as the travel drive are disposed above the saw apparatus, and no machine bed is present.

Abstract: A whirling cutting device for use in flying saws has a tool accommodation and a ring-shaped whirling tool accommodated by it. The ring-shaped whirling tool is formed from at least two ring segments that have a positioning device on their side facing the tool accommodation. The positioning device on the ring segments corresponds with a positioning device disposed on the tool accommodation, thereby achieving centered placement of the ring segments relative to one another, as well as centering of the whirling tool in the tool accommodation. The positioning device can be in the form of an arc-shaped groove or ridge forming a circular segment.

Abstract: A device for chip-producing machining of work pieces in the form of pipes and rods, using the whirling method, has a whirling unit that has a housing, on which an accommodation for a whirling tool with teeth on the inside is mounted so as to rotate, and connected with an electromagnetic rotational direct drive. The drive has a ring-shaped stator attached to the housing and having an essentially C-shaped cross-section, and a rotor configured in the form of a ring-shaped hollow shaft having a T-shaped cross-section and provided with permanent magnets. The rotor is connected with the accommodation and is mounted on the outside of the C-shaped cross-section of the stator on its free shanks on both sides of the circumferential gap. The stator has a winding for generation of an electromagnetic field disposed between the free shanks and the closed rear wall of the C-shaped cross-section of the stator.

Abstract: A device for chip-producing machining of work pieces in the form of pipes and rods, using the whirling method has a whirling unit with a housing, on which an accommodation for a whirling tool with teeth on the inside is mounted so as to rotate. An electromagnetic rotational direct drive has a ring-shaped stator attached to the housing with an essentially U-shaped cross-section, and a rotor configured in the form of a ring-shaped crosspiece provided with permanent magnets, formed onto the accommodation. The rotor is mounted within the U-shaped cross-section of the stator, on the housing side. The stator has a winding for generation of an electromagnetic field, on its inside shank of its U-shaped cross-section that lies opposite the housing.

Abstract: A ring saw including a housing with a whirling assembly, on which a holder for a saw blade with inner teeth connected with a drive is rotatably mounted. A control unit controls the assembly. A vibration meter is disposed on the housing. The whirling assembly has a rotational position transducer for detecting the saw blade's rotational position. An evaluation unit, connected with the vibration meter and the rotational position transducer, is set up so that a vibration progression per saw blade tooth is determined on the basis of the vibration meter and rotational position transducer measurement data. The evaluation unit is connected with the control unit of the whirling assembly, which is set up so that the saw blade penetrates into the work piece with a region of low measured vibration amplitude during the penetration process. A method for controlling a saw blade of a ring saw is also provided.

Abstract: A device for cutting tubular and rod-shaped work pieces using the whirling method includes a whirling unit on which a holder mounted so as to rotate, connected with a drive, for a saw blade having internal teeth is disposed. The holder and saw blade are provided with corresponding reference mechanisms for fixation of the saw blade in a defined position. The device also includes a mechanism for automatic replacement of the saw blade. A saw blade having internal teeth is also provided for use in this device. The saw blade has at least two indexing bores and at least two gripping openings, which are disposed offset relative to one another.