Bell-shaped cutter

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that the positioning devices define respective radially extending grooves on the main body.

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that arranged between a respective cutting edge carrier and the main body is a change jaw (7) which defines an interface between the main body (1) and the cutting edge carrier (2) and which can be fixed to the main body at different radial positions, wherein the cutting edge carrier is adapted to be mountable to the change jaw or is in one piece therewith.

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that the Change jaw can be fixed with tongue and groove to the positioning devices.

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that the positioning devices in plan view have sector-shaped positioning modules with axially and predominantly radially extending flank surfaces which are mounted on a surface of the main body, that extends substantially perpendicularly to the axis of rotation, in such a way that the mutually facing flank surfaces of adjacent positioning modules extend parallel and with the surface of the main body, that extends perpendicularly to the axis of rotation and to the flank surfaces, define a groove of rectangular cross-section.

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that each cutting edge carrier is of the basic shape of an arcuate segment of a hollow cylinder, the radial thickness of the segment varying along the axial extent of the cutting edge carrier.

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that in a section containing the axis of the main body the cutting edge carrier at least partially is of an approximately V-shaped profile, the tip of which faces away from the main body.

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that the cutting edge carrier (2) has recesses (5) for receiving interchangeable cutting bits (6).

A bell-shaped milling cutter as set forth in one of the preceding claims characterised in that the overall profile of the arcuate groove produced by the bell-shaped milling cutter is formed by the totality of the cutting edges of two successive cutting edge carriers.