Method of sharpening cutting blades
AssigneeThe Gleason Works
InventorGeorge M. Sweet
Life of this patent
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Abstract
A method of sharpening face-sharpened cutting blades for gears and the like comprising engaging a rotating grinding wheel and the cutting blade in a manner whereby the grinding wheel traverses across the cutting face along a grinding path wherein at least a portion of the grinding path is defined by a feed vector directed generally toward the cutting edge, with respect to the axis of rotation of the grinding wheel. The feed vector comprises components of (1) a first axis located in the sharpening plane and extending substantially perpendicular to the top of the cutting face, and, (2) a second axis located in the sharpening plane with the second axis being substantially perpendicular to the first axis. Preferably, the feed vector is directed perpendicular to the cutting edge.
Claims18
A method of sharpening face-sharpened cutting blades, said cutting blades having a cutting face, two side surfaces and a top surface with a cutting edge being defined by the intersection of said cutting face and one of said side surfaces and a clearance edge being defined by the intersection of said cutting face and the other of said side surfaces, said method comprising:
- providing a grinding wheel, said grinding wheel having an axis of rotation,
- providing said cutting blade having said cutting face, said cutting face defining a sharpening plane,
- rotating said grinding wheel,
- engaging said rotating grinding wheel and said cutting blade in a manner whereby said grinding wheel traverses across said cutting face along a grinding path,
- wherein at least a portion of said grinding path is defined by a feed vector directed generally toward said cutting edge with said feed vector comprising a first component lying on a first axis located in said sharpening plane, said first axis extending substantially perpendicular to said top of said cutting face and a second component lying on a second axis located in said sharpening plane with said second axis being substantially perpendicular to said first axis.
A method of sharpening face-sharpened cutting blades, said cutting blades having a cutting face, two side surfaces and a top surface with a cutting edge being defined by the intersection of said cutting face and one of said side surfaces and a clearance edge being defined by the intersection of said cutting face and the other of said side surfaces, said method comprising:
- providing a grinding wheel, said grinding wheel having an axis of rotation,
- providing said cutting blade having said cutting face, said cutting face defining a sharpening plane,
- rotating said grinding wheel,
- engaging said rotating grinding wheel and said cutting blade in a manner whereby said grinding wheel traverses across said cutting face along a grinding path,
- wherein at least a portion of said grinding path is defined by a feed vector directed substantially perpendicular to said cutting edge with said feed vector comprising a first component lying on a first axis located in said sharpening plane said first axis extending substantially perpendicular to said top of said cutting face and a second component lying on a second axis located in said sharpening plane with said second axis being substantially perpendicular to said first axis.
A method of sharpening face-sharpened cutting blades with a computer controlled machine having a plurality of computer controlled axes for positioning and operatively engaging a tool and workpiece with respect to one another, said tool comprising a grinding wheel and said workpiece comprising a cutter having at least one cutting blade mounted thereon, each of said at least one cutting blade having a cutting face defining a sharpening plane, two side surfaces and a top surface with a cutting edge being defined by the intersection of said cutting face and one of said side surfaces and a clearance edge being defined by the intersection of said cutting face and the other of said side surfaces, said method comprising:
- computing initial setup positions in response to setup parameters input to said machine,
- moving said computer controlled axes to said setup positions to initially position the grinding wheel and a cutting blade with respect to one another,
- computing operating positions in response to operating parameters input to the machine,
- moving said machine axes to said operating positions to traverse said grinding wheel across said cutting face along a grinding path at least a portion of which comprises a feed vector comprising a first component lying on a first axis located in said sharpening plane, said first axis extending substantially perpendicular to said top of said cutting face and a second component lying on a second axis located in said sharpening plane with said second axis being substantially perpendicular to said first axis,
- repeating the steps of computing operating positions and moving said computer controlled axes to said operating positions for completing said sharpening.
Dependencies are inferred from the claim text.