Abstract: The invention relates to a device (10) for machining work pieces, particularly for sharpening tools with cutters for cutting-machining, such as for example drills, milling tools or the like, the device (10) comprising a monolithic machine block (12) with at least two functional surfaces (14, 16) disposed at an angle with respect to each other, a work piece support arrangement (18) for clamping-in a work piece (38) to be machined, a machining unit (20), on which at least one tool (66, 68, 70) can be attached to machine the work piece (38), and a support (22), on which the machining unit (20) can be displaceably attached, wherein on a first functional surface (14) of the two functional surfaces (14, 16) of the machine block (12) the machine block (12) has at least one first linear guide (24, 26) for guiding a work piece support arrangement (18) along at least one first guide axis (X1), and on the second functional surface (16) of the two functional surfaces (14, 16) of the machine block (12) the machine block h

Abstract: The invention relates to a method for producing a guide bevel on a workpiece, in particular a cutting tool. The workpiece to be machined is clamped in a clamping device which is rotationally driven about a rotational axis, and at least one laser unit is provided. The clamping device and the laser unit can be moved relative to each other by means of at least one CNC-controlled axis. The laser unit is of a type that is suitable for machining the workpiece by removing material. In order to produce the margin, the laser unit and the clamping device are controlled such that the workpiece in the clamping device is continuously rotated about the rotational axis of the clamping device at least by a specified angular amount while the laser unit and the clamping device are moved relative to each other at least by a specified distance in order to remove material from the workpiece so as to produce the guide bevel.

Abstract: The invention relates to a method for producing a guide bevel on a workpiece, in particular a cutting tool. The workpiece to be machined is clamped in a clamping device which is rotationally driven about a rotational axis, and at least one laser unit is provided. The clamping device and the laser unit can be moved relative to each other by means of at least one CNC-controlled axis. The laser unit is of a type that is suitable for machining the workpiece by removing material. In order to produce the margin, the laser unit and the clamping device are controlled such that the workpiece in the clamping device is continuously rotated about the rotational axis of the clamping device at least by a specified angular amount while the laser unit and the clamping device are moved relative to each other at least by a specified distance in order to remove material from the workpiece so as to produce the guide bevel.

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 invention relates to a device (10) for truing a machining wheel (20), in particular grinding or eroding wheel, by means of a rotating truing tool (30), comprising: a first rotating spindle (18), which can be driven so as to rotate about a first axis of rotation (22), for attaching the machining wheel (20) and a second rotating spindle (28), which can be driven so as to rotate about a second axis of rotation (32), for attaching the truing tool (30), wherein, in order to true the machining wheel (20), the truing tool (30) rotatably driven by the second rotating spindle (28) can be brought into material-removing contact with the machining wheel (20) rotatably driven by the first rotating spindle (18). In this respect, in order to obtain uniform truing results, the first axis of rotation (22) is directed substantially orthogonally to the second axis of rotation (32) during the entire truing process.

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 for machining workpieces, in particular workpieces provided with cutting teeth, such as bandsaw blades or circular-saw blades for example, comprising a base (12), a machining device (18) displaceable relative to the base (12) and having at least one machining tool (20) rotationally drivable about a drive axis, and a clamping device (14) for securing the workpiece to be machined, the machining device (18) being designed with a multiaxis arrangement (24), by means of which the machining tool (20) can be positioned in different machining positions relative to the workpiece to be machined, it is provided that the multiaxis arrangement (24) is received within a support frame (26) open on at least one side and coupled to the base (12).

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: A machine for machining bandsaw blades. A machining device, a feed device, a workpiece-fixing device and a workpiece guiding device are mounted to a common central machine block. The machining device has a rotatably driven positionable adjustable grinding wheel with the workpiece-guiding device supporting the bandsaw blade and the workpiece-fixing device clamping the blade in position.

Abstract: A grinding machine (10) for double-sided grinding of tooth flanks, in particular hard-metal tipped circular saw blades (14) is described. The grinding machine comprises two grinding units (16, 18) each with a grinding body, a first drive to move at least one of the two grinding units (16, 18) along a first axis (x1, x2) running perpendicular to a plane containing the saw blade (14) and also a second drive (36) to move at least one of the two grinding units (16, 18) along a second axis (z) running parallel to axes of rotation of the grinding bodies. Furthermore a third drive (38) is provided to move at least one of the two grinding units (16, 18) along a third axis (y) running parallel to the first (x1, x2) and the second (y) axis. A control method according to the invention for the grinding machine (10) provides that a tangential clearance angle of a tooth is varied along a tooth flank during the grinding of the tooth.

Abstract: A workpiece slide (42) is guided on a workpiece slide guide means (40) which extends transversely of a pivot axis (A) determined by a machine bed (20), the workpiece slide (42) together with its workpiece support (44) defining a central plane (G) at right angles to the pivot axis (A). A feeler means (60) determines the distance of the cutting teeth (12) of a workpiece (10) from a workpiece support (44) when in a measuring position which the tooth tip (18) of a cutting tooth (12) oriented in the direction of the pivot axis (A) of a workpiece (10) received in the workpiece support (44) reaches upon shifting of the workpiece slide (42) in the direction of the pivot axis (A). The feeler means (60) comprises a barrier (70) the length L of which, as measured in the central plane (G) transversely of the workpiece slide guide means (40), is greater than the greatest tooth pitch (T) occurring of workpieces (10).

Abstract: The machine includes a saddle (26) which is displaceable along a spindle axis (E) and transversely thereof under numerical control. A tool spindle (28) is supported on the saddle (26) so as to be driven in rotation about the spindle axis (E) and adapted to be equipped with a disc-shaped tool for cutting work to be done on a workpiece (10). The machine further includes a workpiece slide (42) which is displaceable along the workpiece slide guide (40) under numerical control and carries a workpiece support (44). The tool (30) is embodied by an electrically conductive member of an electric circuit (30, 36, 46, 48, 10) which is closed through the workpiece (10) when this is touched by the tool (30). The tool spindle (28) is adapted to be driven by a motor (84) which can be switched from a rotational operating speed to do cutting work on the workpiece (10) to a rotational measuring speed which is considerably slower.

Abstract: A tool head (46) in which a tool spindle (52), adapted to be equipped with a disc-shaped tool (100), is supported so as to be driven in rotation about a spindle axis (C), is associated with a workpiece support (82) on which a workpiece (10) can be arranged such that the tooth tip (18) of a cutting tooth (12) to be machined will lie on a stationary reference axis (A). The tool head (46) is movably supported by means of a reciprocating slide (34) which is movable back and forth along a reciprocating slide guide means (32) transversely of the reference axis (A), by means of a feed slide (24) adapted to be advanced along a feed slide guide means (22) transversely of the reciprocating slide guide means (32), and by means of a a pivot bearing means (42) defining a pivot axis (B) parallel to the reciprocating slide guide means (32).

Abstract: A tool head (46) in which a tool spindle (52), adapted to be equipped with a disc-shaped tool (100), is supported so as to be driven in rotation about a spindle axis (C), is associated with a workpiece support (82) on which a workpiece (10) can be arranged such that the tooth tip (18) of a cutting tooth (12) to be machined will lie on a stationary reference axis (A). The tool head (46) is movably supported by means of a reciprocating slide (34) which is movable back and forth along a reciprocating slide guide means (32) transversely of the reference axis (A), by means of a feed slide (24) adapted to be advanced along a feed slide guide means (22) transversely of the reciprocating slide guide means (32), and by a pivot bearing means (42) defining a pivot axis (B) parallel to the reciprocating slide guide means (32).

Abstract: A pivot body (22) mounted on a machine bed (20) so as to be capable of swinging defines a lift axis (D) which extends transversely of its own pivot axis (A) and along which a reciprocating slide (24) is movable. Infeed of a saddle (26) on the reciprocating slide (24) can be effected along a spindle axis (E) transversely of the lift axis (D). A tool spindle (28) adapted to receive a tool (30) is supported on the saddle (26) so as to be driven in rotation about the spindle axis (E). Furthermore, a workpiece slide (42) is guided for traversing movement on the machine bed (20) and, together with a workpiece support (44), it defines a central plane (G) extending at right angles to the pivot axis (A). An advance finger (58) is adapted to be engaged intermittently with a respective one of the cutting teeth (12) of a workpiece (10) in order to advance the same.

Abstract: A means for spark erosion of workpieces. A workpiece carrier (20) and a carriage (30) including a tool support (32) are movable in controlled fashion with respect to each other along the three axes of a three dimensional coordinate system (X, Y, Z) in the work space (46) of an erosion machine (10). One of the axes (Y) of movement of the carriage (30) is parallel to the axis (A) of the workpiece carrier (20). Workpiece holds (60) of a magazine (50) are movable into the work space (46), one of them each being positioned with its axis parallel to said axis (Y) of the carriage (30) in a transfer position (P). A gripper (40) is disposed on the carriage (30), spaced from the tool support (32), for exchanging workpieces (W) between the magazine (50) and the workpiece carrier (20).

Abstract: A machine table (16) on which a saw blade (10) is movable in a direction of movement (A) which essentially conforms to the longitudinal extension of the saw blade is provided with a first measuring station (22) for measuring the saw blade (10) in a measuring plane (B) perpendicular to the direction of movement (A) thereof. The machine table (16) furthermore supports a second measuring station (28) for scanning an edge (14) of the saw blade (10) in the plane thereof transversely of the direction of movement (A) as well as a rolling station (26) which comprises first and second rollers (34, 36) for changing the tension profile of the saw blade (10) and the curvature of the edge (14) thereof. The second roller (36) is pivotably adjustable with respect to the first roller (34) about a pivot axis (C) which intersects the axes of rotation (D1, D2) of the two rollers (34, 36) approximately at right angles and thereby adapted to be positioned obliquely for correcting distortions of the saw blade (10).