Grinding wheel
AssigneeAugust Heinr. Schmidt GmbH & Co. KG Maschinenfabrik
InventorRichard Schuller
Life of this patent
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Abstract
The invention relates to a grinding wheel for machining metal circular-saw blades at relatively high rotational speeds, which have machining areas which contain in particular hard materials, such as for example diamond or cubic boron nitride. The grinding wheels according to the invention are intended in particular to improve the centring at relatively high rotational speeds, and consequently to prevent true running problems as far as possible. The base body of the grinding wheel is of contoured design, at least on one side, in the radially outer area of a tool-mounting bore, and at least one centring element can be designed to engage in a formfitting manner in the correspondingly designed contours, so that the grinding wheel and a centring element on a tool spindle of a grinding machine are held together in a force-fitting manner.
Claims13
A grinding wheel for centrally mounting on a tool for machining metal circular-saw blades, the grinding wheel comprising a radially outer area having a machining area which is provided with an abrasive coating, a center mount area including a tool-mounting bore with an internal diameter which widens on at least one side of the grinding wheel (1), further including a base body having on at least one side a contour in the radially outer region of the center mount area (4), for the form-fitting engagement of a centering element (6) having an external contour, the external contour being matched to the internal contour of the center mount area (4), wherein the contour (7) is a flange-like widening greater in thickness than the grinding-wheel base body, the widening having at least one radially outer bearing surface (8) for engaging the centering element (6), and further including planar support surfaces (9) positioned perpendicular to the axis of rotation (A) between the at least one bearing surface (8) and the center mount area (4).
A grinding wheel for machining metal circular-saw blades, which at least in its radially outer area has a machining area which is provided with an abrasive coating and, in the area of the tool-mounting bore, is designed with an internal diameter which widens on at least one side wherein the base body of the grinding wheel (1), at least on one side, has an additional contour (2, 2′, 3, 3′, 7) in the radially outer region of the tool-mounting bore (4), for the form-fitting engagement of a centering element (6), the external contour of which is matched to the internal contour of the tool-mounting bore (4), the contour (7) is a flange-like widening beyond the thickness of the grinding-wheel base body, which widening has at least one radially outer bearing surface (8) for a centering element (6), the at least one bearing surface (8) is bevelled with respect to the axis of rotation (A) of the grinding wheel (1), the bearing surfaces (8) being inclined at an angle of 15° with respect to the axis of rotation (A) of the grinding wheel (1).
Dependencies are inferred from the claim text.