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US 5,765,974 AGranted
Method for machining tooth flanks of workpieces with a profiled shaped tool
AssigneeHermann Pfauter GmbH & Co.
InventorIngo Faulstich
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AssigneeHermann Pfauter GmbH & Co.
InventorIngo Faulstich
Estimating the term…
A method for machining of tooth flanks by grinding or milling respectively as to internally or externally toothed workpieces with a profile disk tool in a discontinuous indexing process. For generating flanks with complicated flank modifications it is proposed to perform during machining besides the known movements an additional movement that is composed of at least two portions, extending in different axes of the machine, whereby the individual portions are so matched that a prescribed distortion of the flanks results. There are embodiments for single flank processes and for double flank processes. It is also possible to generate topological flank modifications and flanks, of which certain parts are set back relative to the unmodified area of the flank. Basis for determining the tool- and workpiece setting data and the movements that the tool has to perform relative to the workpiece, is a simulation of the machining process on a computer.
A method of machining tooth flanks in a workpiece by grinding or milling in a single flank process with a machine carrying a profile disk-tool, the workpiece and the tool each having an axis and a center, the tool being positioned relative to the workpiece by setting data, the setting data including a center distance (a) defined by the distance between the axes of the workpiece and the tool, an eccentricity (e) of the tool defined by the distance between center of the tool and the crossing point of the axes of the tool and the workpiece, and a swivel angle (.eta.) of the axis of the tool defined by 90.degree. minus the crossing angle of the axes of the tool and the workpiece, the machine rotating the tool so as to generate a cutting speed therein, the machine also producing a screw movement to produce helical flanks in the workpiece defined by an angle of rotation (.phi.) which is basically proportional to a displacement (z) of an axial slide of the machine, the machine producing simple helix modified tooth flanks in the workpiece by performing the step of:
A method of machining tooth flanks in a workpiece by grinding or milling in a single flank process with a machine carrying a profile disk-tool, the workpiece and the tool each having an axis and a center, the tool being positioned relative to the workpiece by setting data, the setting data including a center distance (a) defined by the distance between the axes of the workpiece and the tool, an eccentricity (e) of the tool defined by the distance between center of the tool and the crossing point of the axes of the tool and the workpiece, and a swivel angle (.eta.) of the axis of the tool defined by 90.degree. minus the crossing angle of the axes of the tool and the workpiece, the machine rotating the tool so as to generate a cutting speed therein, the machine also producing a screw movement in the workpiece defined by an angle of rotation (.phi.) which is basically proportional to a displacement (z) of an axial slide of the machine, the machine producing simple helix modified tooth flanks in the workpiece by performing the step of:
A method of machining tooth flanks in a workpiece by grinding or milling in a single flank process with a machine carrying a profile disk-tool, the workpiece and the tool each having an axis and a center, the tool being positioned relative to the workpiece by setting data, the setting data including a center distance (a) defined by the distance between the axes of the workpiece and the tool, an eccentricity (e) of the tool defined by the distance between center of the tool and the crossing point of the axes of the tool and the workpiece, and a swivel angle (.eta.) of the axis of the tool defined by 90.degree. minus the crossing angle of the axes of the tool and the workpiece, the machine rotating the tool so as to generate a cutting speed therein, the machine also producing a screw movement in the workpiece defined by an angle of rotation (.phi.) which is basically proportional to a displacement (z) of an axial slide of the machine, the machine producing simple helix modified tooth flanks in the workpiece by performing the step of:
A method of machining tooth flanks in a workpiece by grinding or milling in a single flank process with a machine carrying a profile disk-tool, the workpiece and the tool each having an axis and a center, the tool being positioned relative to the workpiece by setting data, the setting data including a center distance (a) defined by the distance between the axes of the workpiece and the tool, an eccentricity (e) of the tool defined by the distance between center of the tool and the crossing point of the axes of the tool and the workpiece, and a swivel angle (.eta.) of the axis of the tool defined by 90.degree. minus the crossing angle of the axes of the tool and the workpiece, the machine rotating the tool so as to generate a cutting speed therein, the machine also producing a screw movement in the workpiece defined by an angle of rotation (.phi.) which is basically proportional to a displacement (z) of an axial slide of the machine, the machine producing simple helix modified tooth flanks in the workpiece by performing the step of:
A method of machining tooth flanks in a workpiece by grinding or milling in a single flank process with a machine carrying a profile disk-tool, the workpiece and the tool each having an axis and a center, the tool being positioned relative to the workpiece by setting data, the setting data including a center distance (a) defined by the distance between the axes of the workpiece and the tool, an eccentricity (e) of the tool defined by the distance between center of the tool and the crossing point of the axes of the tool and the workpiece, and a swivel angle (.eta.) of the axis of the tool defined by 90.degree. minus the crossing angle of the axes of the tool and the workpiece, the machine rotating the tool so as to generate a cutting speed therein, the machine also producing a screw movement in the workpiece defined by an angle of rotation (.phi.) which is basically proportional to a displacement (z) of an axial slide of the machine, the machine producing simple helix modified tooth flanks in the workpiece by performing the step of:
A method of machining helix modifications with prescribed distortion in the flanks of a workpiece in a double flank process with a machine carrying a profile disk-tool, the workpiece and the tool each having an axis and a center, the tool being positioned relative to the workpiece by setting data, the setting data including a center distance (a) defined by the distance between the axes of the workpiece and the tool, an eccentricity (e) of the tool defined by the distance between center of the tool and the crossing point of the axes of the tool and the workpiece, and a swivel angle (.eta.) of the axis of the tool defined by 90.degree. minus the crossing angle of the axes of the tool and the workpiece, the machine rotating the tool so as to generate a cutting speed therein, the machine also carrying out a screw movement to produce helical flanks in the workpiece defined by an angle of rotation (.phi.) which is basically proportional to a displacement (z) of an axial slide of the machine, comprising the steps of:
A method of machining helix modifications with prescribed distortion in the flanks of a workpiece in a double flank process with a machine carrying a profile disk-tool, the workpiece and the tool each having an axis and a center, the tool being positioned relative to the workpiece by setting data, the setting data including a center distance (a) defined by the distance between the axes of the workpiece and the tool, an eccentricity (e) of the tool defined by the distance between center of the tool and the crossing point of the axes of the tool and the workpiece, and a swivel angle (.eta.) of the axis of the tool defined by 90.degree. minus the crossing angle of the axes of the tool and the workpiece, the machine rotating the tool so as to generate a cutting speed therein, the machine also carrying out a screw movement to produce helical flanks in the workpiece defined by an angle of rotation (.phi.) which is basically proportional to a displacement (z) of an axial slide of the machine, comprising the steps of:
Dependencies are inferred from the claim text.