Method for compensating wear of a finishing tool
AssigneeThielenhaus Microfinish Corporation
InventorOliver Stammen
Life of this patent
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Abstract
The invention is a method of creating greater accuracies for wear compensation of a finishing tool during the finishing of workpieces, in which a reference surface is ablated by initially traversing the finishing tool over the reference surface and determining the actual wear of the finishing tool as a result of this initial feed motion of the finishing tool controlled by an NC feed program of an NC machine. The actual measured wear of the finishing tool as a result of the initial traversing feed motion over the reference surface is compared to a known empirical wear trend line for the workpiece and the feed motion of the NC feed program for the next workpiece is recalculated as a function of the comparative actual wear of the finish tool with respect to the known empirical wear trend line.
Claims16
A method for compensating for wear of a finishing tool in the finishing work of workpieces, in which a reference surface of a workpiece is ablated by a feed motion of said finishing tool controlled by an NC feed program, said method comprising the steps of:
- provide a reference work surface;
- traverse said reference work surface with a new finishing tool to establish a reference starting point or zero (0) point for said NC feed program;
- and
- the NC feed program measures the actual wear of said finishing tool as a function of an empirical wear trend after finishing a first workpiece and compensates for the difference between actual wear and empirical wear of said finishing tool on a subsequent workpiece by adjusting the feed motion of said NC feed program, said actual wear of said finishing tool being determined by traversing said reference surface and measuring said actual wear.
A method for compensating for wear of a finishing tool in the finish machining of workpieces, in which a reference surface is ablated by a feed motion of said finishing tool controlled by an NC feed program, said method comprising the steps of:
- providing a reference work surface;
- traversing said reference work surface with a new finishing tool to establish a reference starting point for said NC feed program of an NC machine;
- measure the actual wear of said new finishing tool after said traversing step and based on empirical wear data determine an empirical wear trend line based on said measured actual wear measurement of said new finishing tool;
- traverse a first workpiece and measure the actual wear of said new finishing tool;
- compare said actual wear of said new finishing tool with said empirical wear trend line for said new finishing tool;
- and
- adjust said feed motion of said NC feed program of said NC machine as a function of said comparing step to process the next workpiece.
A method for compensating for wear of a finishing tool in the finishing work of workpieces, in which a reference surface of a workpiece is ablated by a feed motion of said finishing tool controlled by an NC feed program, said method comprising the step of:
- traverse said reference surface before beginning processing of workpieces with a new finishing tool thereby establishing the point or zero (0) point for the NC feed program;
- calculate the reduction of the finishing tool in a first feed direction Δx to finish machine a first workpiece n1 based on empirical wear trend data having a wear limit of Δxmax;
- processing a first workpiece n1 using said calculated reduction in said NC feed program during said processing;
- traverse said reference surface after processing said first workpiece n1 and measure the actual wear M1 of said finishing tool;
- compare said actual wear M1 of said finishing tool to the empirical data wear ED1 for said first workpiece n1;
- and
- for further processing of additional work pieces (n2, n3, n4, etc. . . . ) reset said NC feed program to compensate for the difference between said actual wear M1 and the empirical data wear ED1 for said prior workpiece whereby said NC feed program is reset to increase wear if said actual wear for said prior workpieces is less than said empirical data wear EDn and further such that said NC feed program is reset to decrease wear of said finishing tool if said actual wear for said finishing tool is greater than said empirical data wear EDn.
Dependencies are inferred from the claim text.