Abstract: The invention relates to a device (10) for machining, in particular eroding and grinding, rotational workpieces (44) provided with cutting edges, with a machine base (12), a machining mechanism (14), which can be displaced relative to the machine base (12), and a workpiece positioning mechanism (18), which can be displaced relative to the machine base (12), wherein the machining mechanism (14) has at least one machining tool (30), which is attached in a rotatably drivable manner to a slide arrangement (20), which can be displaced in relation to the machine base (12), for machining a functional portion to be machined of the rotational workpiece (44), and wherein the workpiece positioning mechanism (18) has a workpiece holding mechanism (46), which can be displaced relative to the machine base (12) and holds a holding portion of the rotational workpiece (44) directly or via a holding adapter for attaching the rotational workpiece (44) to the workpiece positioning mechanism (18).

Abstract: The various embodiments disclosed and pictured illustrate a hammer for comminuting various materials. The embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The double end hammer includes a connection portion having a slot therein and two contact ends for delivery of energy to the material to be comminuted. The contact ends may be formed with a cavity therein. The contact ends may also be formed with an angle on the contact end periphery. The cavity and/or the angle on the contact end periphery may be used with hammers other than the double end hammers.

Abstract: The invention concerns a device (10) for machining slab-shaped or cylindrical workpieces (70) which are provided with cutting teeth (S), with a machine base (12), a machining device (14) which can be displaced relative to the machine base (12), and a workpiece positioning device (16) which can be displaced relative to the machine base (12), the machining device (14) including a machining bridge (18) which can be displaced relative to the machine base (12) linearly along a first spatial axis (Y1) and a machining arm (20) which can be displaced relative to the machining bridge (18) linearly along a second spatial axis (X1), a machining unit (26) with a machining tool (28) being carried on the machining arm (20) so that it can swivel around a swivelling axis (E1), the swivelling axis (E1) substantially running orthogonally to a plane which is spanned by the first and second spatial axes (Y1, X1), the workpiece positioning device (16) also having a bearing slide (32) which can be displaced relative to the machine

Abstract: The present invention relates to an apparatus (10) for processing and measuring workpieces, in particular plate-shaped or cylindrical workpieces, which are provided with cutting teeth (S), with a machine base (12), a processing and measuring device (14) which can be moved relative to the machine base (12), and a workpiece positioning device (16) which can be moved relative to the machine base (12), wherein the processing and measuring device (14) has a pivoting head (26) which can be moved relative to the machine base (12) such that it can pivot about a pivot axis (E1), wherein a processing tool (28) and a measuring probe (30) are provided on the pivoting head (26). In this case provision is made for the processing tool (28) to project from one side of the pivoting head (26) and for the measuring probe (30) to project from the side of the pivoting head (26) which is opposite with respect to the pivot axis (E1).

Abstract: The invention relates to a device (10) for machining, in particular eroding and grinding, rotational workpieces (44) provided with cutting edges, with a machine base (12), a machining mechanism (14), which can be displaced relative to the machine base (12), and a workpiece positioning mechanism (18), which can be displaced relative to the machine base (12), wherein the machining mechanism (14) has at least one machining tool (30), which is attached in a rotatably drivable manner to a slide arrangement (20), which can be displaced in relation to the machine base (12), for machining a functional portion to be machined of the rotational workpiece (44), and wherein the workpiece positioning mechanism (18) has a workpiece holding mechanism (46), which can be displaced relative to the machine base (12) and holds a holding portion of the rotational workpiece (44) directly or via a holding adapter for attaching the rotational workpiece (44) to the workpiece positioning mechanism (18).

Abstract: The invention concerns a device (10) for machining slab-shaped or cylindrical workpieces (70) which are provided with cutting teeth (S), with a machine base (12), a machining device (14) which can be displaced relative to the machine base (12), and a workpiece positioning device (16) which can be displaced relative to the machine base (12), the machining device (14) including a machining bridge (18) which can be displaced relative to the machine base (12) linearly along a first spatial axis (Y1) and a machining arm (20) which can be displaced relative to the machining bridge (18) linearly along a second spatial axis (X1), a machining unit (26) with a machining tool (28) being carried on the machining arm (20) so that it can swivel around a swivelling axis (E1), the swivelling axis (E1) substantially running orthogonally to a plane which is spanned by the first and second spatial axes (Y1, X1), the workpiece positioning device (16) also having a bearing slide (32) which can be displaced relative to the machine

Abstract: The present invention relates to an apparatus (10) for processing and measuring workpieces, in particular plate-shaped or cylindrical workpieces, which are provided with cutting teeth (S), with a machine base (12), a processing and measuring device (14) which can be moved relative to the machine base (12), and a workpiece positioning device (16) which can be moved relative to the machine base (12), wherein the processing and measuring device (14) has a pivoting head (26) which can be moved relative to the machine base (12) such that it can pivot about a pivot axis (E1), wherein a processing tool (28) and a measuring probe (30) are provided on the pivoting head (26). In this case provision is made for the processing tool (28) to project from one side of the pivoting head (26) and for the measuring probe (30) to project from the side of the pivoting head (26) which is opposite with respect to the pivot axis (E1).

Abstract: The device is constructed with a tensioning spindle (12), a counter-holder (14) and a carrier (30), at least the tensioning spindle (12) being mounted such that it is rotatable about the longitudinal axis, and the carrier (14) being fixed to the tensioning spindle (12) and, when the workpiece (50) is clamped between the tensioning spindle (12) and the counter-holder (14), being capable of being brought into engagement with the workpiece (50) in such a way that it transmits a rotary movement of the tensioning spindle (12) to the workpiece (50). The device furthermore provides for the carrier to have a spring element (30) which can be coupled to the workpiece (50) under prestress to transmit a torque.

Abstract: In an apparatus (10) for clamping and positioning workpieces (36) of different length between two centers (26,28), comprising a base (14) with at least one linear guide (18), a first carriage (20) displaceable in a linearly guided manner on the linear guide (18) and having a clamping center (26), a second carriage (22) displaceable in a linearly guided manner on the linear guide (18) and having a tail center (28), and a drive means coupled to the first or/and the second carriage (20,22), it is provided that the first carriage (20) and the second carriage (22) are displaceable on the linear guide (18) relative to one another and relative to the base (14) in such a way that workpieces (36) of different length can be received between the clamping center (26) and the tail center (28), it furthermore being the case that the first or/and the second carriage (20,22) have a prestressing means (78) and it being the case that the clamping center (26) or/and the tail center are displaceable, on contact (28) with the wor

Abstract: The device is constructed with a tensioning spindle (12), a counter-holder (14) and a carrier (30), at least the tensioning spindle (12) being mounted such that it is rotatable about the longitudinal axis, and the carrier (14) being fixed to the tensioning spindle (12) and, when the workpiece (50) is clamped between the tensioning spindle (12) and the counter-holder (14), being capable of being brought into engagement with the workpiece (50) in such a way that it transmits a rotary movement of the tensioning spindle (12) to the workpiece (50). The device furthermore provides for the carrier to have a spring element (30) which can be coupled to the workpiece (50) under prestress to transmit a torque.

Abstract: In an apparatus (10) for clamping and positioning workpieces (36) of different length between two centres (26,28), comprising a base (14) with at least one linear guide (18), a first carriage (20) displaceable in a linearly guided manner on the linear guide (18) and having a clamping centre (26), a second carriage (22) displaceable in a linearly guided manner on the linear guide (18) and having a tail centre (28), and a drive means coupled to the first or/and the second carriage (20,22), it is provided that the first carriage (20) and the second carriage (22) are displaceable on the linear guide (18) relative to one another and relative to the base (14) in such a way that workpieces (36) of different length can be received between the clamping centre (26) and the tail centre (28), it furthermore being the case that the first or/and the second carriage (20,22) have a prestressing means (78) and it being the case that the clamping centre (26) or/and the tail centre are displaceable, on contact (28) with the wor