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US 8,403,725 B2Granted
Method and device for machining workpieces
AssigneeL. Kellenberger & Co. AG
InventorsDaniel Honegger, Hugo Thurnherr, Claus P. Keferstein, Bernard Gschwend, Markus Ritter
Life of this patent
Estimating the term…
Abstract
An apparatus and method for machining workpieces is provided, in particular, for grinding the surface of non-round workpieces. The workpiece is clamped within a machining unit and the surface of this workpiece is contactlessly measured by means of a measuring device while the workpiece is clamped within the machine.
Claims20
A method for machining workpieces, in particular for grinding the surface of non-round workpieces, the method including the steps of:
- (a) clamping a workpiece within a machining unit;
- (b) machining the workpiece;
- (c) without unclamping the workpiece, contactlessly measuring the workpiece using an optical measuring device having a chromatic sensor with a characteristic measuring range;
- and
- (d) machining and measuring the workpiece in an alternating manner to iteratively approach the desired measurements of a specified form by adjusting the distance between the optical measuring device and the surface of the workpiece depending on there being a deviation of the surface from the specified form so that a respectively measured area of the surface of the workpiece remains within the measuring range of the optical sensor.
2 more elements
A method for machining workpieces, the method having the following steps:
- clamping a workpiece within a machining unit;
- contactlessly measuring the surface of this workpiece by means of a measuring device including a chromatic sensor with a characteristic measuring range, the measuring taking place while the workpiece is clamped within the machine;
- carrying out machining operations alternating with the measuring operations and in such a manner that the desired dimensions of the product are approached iteratively;
- and
- changing the distance between the optical scanner and the surface of the workpiece so long as there is a deviation of the surface from the specified form so that the respectively measured area of the surface of the workpiece remains within the measuring range of the scanner.
2 more elements
Dependencies are inferred from the claim text.