A tool system includes a machine-proximal shank configured to be introduced into a driven tool receptacle and containing a device for transferring a rotating movement to be picked up from the driven tool receptacle. A tool-proximal shank is configured as a tool holder or to have a tool holder releasably connected thereto. A gear mechanism disposed between the machine-proximal shank and the tool-proximal shank is configured to transfer a rotating movement transmitted by the device in a reduced manner to the tool-proximal shank. At least one insert seat configured on the tool holder for receiving an interchangeable cutting insert is provided on an end face of the tool holder extending transversely to a longitudinal axis of the tool holder. A method for machining a workpiece is also provided.

A milling tool includes an internal indexing mechanism arranged to displace an indexable cutting insert between an inner supported position and an outer indexing position. The indexable cutting insert has a multi-sided shape as seen in the direction of an insert centre axis and side support surfaces are included in the sides of the multi-sided indexable cutting insert. The internal indexing mechanism is arranged to provide a rectilinear movement along the shaft centre axis, between the inner supported position and the outer indexing position, wherein the indexable cutting insert is free to turn in both directions around the insert centre axis in the outer indexing position. An external indexing device for the milling tool and an indexing system is also provided. A disc member is configured with an annular geometry arranged to engage one of the side support surfaces and turn the indexable cutting insert toward the next index position.

This invention relates to finish machining, including a tool and the method of its use. Embodiments of this invention allow a cutting insert to be indexed quickly without loosening the insert retainer (screw or clamp) and not changing the depth-of-cut position of the tooth tip. The indexing motion is achieved by rotating a rotor, either manually or by way of a motor included on the tool. In some cases, between indexes, a small angle may be imparted to the rotor in order to adjust slightly the depth-of-cut position of the tooth tip in order to compensate for it being worn, or in other cases to precisely match the depth of cut of the tooth tips on multiple cutting teeth. The method involves setting up the path the tool will follow, then setting the feed per finishing tooth to be unconventionally large relative to the maximum depth of cut along the path. Using a round cutting insert, in particular a tangentially-mounted one or one that exhibits comparable curved edge profile, provides a large tooth-tip radius of curvature which in turn results in a good/smooth surface finish in spite of the unconventionally high feed per finishing tooth.

A milling tool includes an internal indexing mechanism arranged to displace an indexable cutting insert between an inner supported position and an outer indexing position. The indexable cutting insert has a multi-sided shape as seen in the direction of an insert centre axis and side support surfaces are included in the sides of the multi-sided indexable cutting insert. The internal indexing mechanism is arranged to provide a rectilinear movement along the shaft centre axis, between the inner supported position and the outer indexing position, wherein the indexable cutting insert is free to turn in both directions around the insert centre axis in the outer indexing position. An external indexing device for the milling tool and an indexing system is also provided. A disc member is configured with an annular geometry arranged to engage one of the side support surfaces and turn the indexable cutting insert toward the next index position.

A cutting system may include a tool and a stationary fixture. The tool may include a cam connected with a cutting insert. The stationary fixture may be spaced apart from the tool. The stationary fixture may include a moveable indexing pin moveable relative to the stationary fixture. The cam of the tool may be configured to be moved into contact with the moveable indexing pin of the stationary fixture, and the moveable indexing pin of the stationary fixture may be configured to cause the cam to rotate thereby indexing the cutting insert.

A milling tool has a basic body rotatable about a center axis, and including an outside, which includes a pair of opposite front and back sides, as well as a peripheral envelope surface. The body is equipped with a plurality of replaceable cutting inserts. The basic body includes an inner hollow space having an internal limiting surface, in which there collectively mouth a plurality of bores. The bores also mouth in the outside. Each cutting insert is mounted on an outer end of an ejector, which is rectilinearly movable in the individual bore and has an inner end accessible from the hollow space, and which interacts with a compressible force generator, to pull the same into the bore. By mounting the cutting inserts on ejectors, which simultaneously are accessible from a common hollow space, the cutting inserts can be replaced fast and easily, and possibly also be indexed.

A tool for a chip removing machining includes a basic body and a replaceable cutting insert, which is indexable by a cutting edge exchange mechanism. The cutting edge mechanism includes an ejector, which in a front part has an attachment for the cutting insert and interacts with a device for transforming a rectilinear, axial projection of the ejector into a simultaneous turning of the same. The cutting edge exchange mechanism includes a stop collar, which is fixedly anchored in relation to the basic body, and through which the ejector is movable back and forth and a carrier included in a rear part of the ejector. In addition, between the carrier and the stop collar, there is arranged a mechanical compression spring, which spaces the carrier from the stop collar. In addition, an autonomous cutting edge exchange mechanism is disclosed.

A milling tool has a basic body rotatable about a centre axis, and including an outside, which includes a pair of opposite front and back sides, as well as a peripheral envelope surface. The body is equipped with a plurality of replaceable cutting inserts. The basic body includes an inner hollow space having an internal limiting surface, in which there collectively mouth a plurality of bores. The bores also mouth in the outside. Each cutting insert is mounted on an outer end of an ejector, which is rectilinearly movable in the individual bore and has an inner end accessible from the hollow space, and which interacts with a compressible force generator, to pull the same into the bore. By mounting the cutting inserts on ejectors, which simultaneously are accessible from a common hollow space, the cutting inserts can be replaced fast and easily, and possibly also be indexed.

A tool for a chip removing machining includes a basic body and a replaceable cutting insert, which is indexable by a cutting edge exchange mechanism. The cutting edge mechanism includes an ejector, which in a front part has an attachment for the cutting insert and interacts with a device for transforming a rectilinear, axial projection of the ejector into a simultaneous turning of the same. The cutting edge exchange mechanism includes a stop collar, which is fixedly anchored in relation to the basic body, and through which the ejector is movable back and forth and a carrier included in a rear part of the ejector. In addition, between the carrier and the stop collar, there is arranged a mechanical compression spring, which spaces the carrier from the stop collar. In addition, an autonomous cutting edge exchange mechanism is disclosed.

A tool system includes a machine-proximal shank configured to be introduced into a driven tool receptacle and containing a device for transferring a rotating movement to be picked up from the driven tool receptacle. A tool-proximal shank is configured as a tool holder or to have a tool holder releasably connected thereto. A gear mechanism disposed between the machine-proximal shank and the tool-proximal shank is configured to transfer a rotating movement transmitted by the device in a reduced manner to the tool-proximal shank. At least one insert seat configured on the tool holder for receiving an interchangeable cutting insert is provided on an end face of the tool holder extending transversely to a longitudinal axis of the tool holder. A method for machining a workpiece is also provided.