Inserted blade cutting heads or routers are rotating cutting tools used particularly in wood working, for example, for the cutting of wood profiles which consist of a rotatable tool support body and a plurality of cutting blades mounted thereon circumferentially and evenly spaced from one another. The cutting edges of these cutting blades are ground corresponding to the contour of the profile to be cut.
It is important for such cutting heads with inserted blades that the cutting blades of the cutting head are all accurately positioned in axial as well as in radial directions so that all the cutting blades provide for the same cut. The accurate mounting of the various cutting blades must therefore be reproducible in a reliable manner.
Usually, such cutting heads have cutting blade mounting arrangements with a support plate which is provided with a rear gear tooth arrangement and on which the cutting blades abut with their back side. With its rear gear tooth arrangement, the support plate engages a corresponding gear tooth arrangement in the blade carrying cutting head. A chucking wedge is provided which firmly engages the cutting blades with the support plate. The support plate often has at its underside a ground step structure or, in place of the step structure, a ground wedge which is provided in order to form a highly accurate back support surface for the lower edge of the cutting blade.
Pins, inserted into the support plate, which cooperate with a side edge surface of the cutting blade or a lower cut out formed therein to provide a stop structure assuring a predetermined and reproducible axial position for the cutting blade in the cutting head.
It is the object of the present invention to provide an improved cutting blade support arrangement for a cutting head whereby handling of the cutting blades is facilitated and utilization of the cutting blades is improved.