Method and Device for Machining a Tool by Removing Material
AssigneeWalter Maschinenbau GmbH
InventorsOliver WENKE, Manfred MAIER, Christoph PLÜSS
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Abstract
The invention relates to a device (15) and a method (V) for machining a tool (16) by removing material. The tool is first of all measured in three dimensions using a measuring unit (17) and a three-dimensional virtual tool model (M) is produced therefrom. This virtual tool model (M) is compared with a reference contour (R) from a particular tool data record (WD). If a match was determined, a machining program (PR) assigned to the tool data record (WD) is selected and a desired contour (SK) is determined by fitting the reference contour (R) into the three-dimensional virtual tool model (M). The tool (16) can then be machined on the basis of this desired contour (SK).
Claims16
Method (V) for machining a tool (16) by removing material, the method comprising:
- Performing a measurement of the tool (16) in three dimensions and generating a three-dimensional virtual tool model (M) based on the measured data of the three-dimensional measurement;
- Providing several tool data sets (WD) respectively having one or both of one reference contour (R) of the tool (16) and at least one tool parameter (WP) corresponding to one characteristic of the tool (16), wherein each of the tool data sets (WD) is allocated respectively to one machining program (PR);
- one or both of comparing the three-dimensional virtual tool model (M) with the reference contour (R) and comparing at least one model parameter (MP)—determined as a function of the virtual tool model (M) and corresponding to a characteristic of the tool (16)—with the tool parameter (WP) of a stored tool data set (WD) of the several tool data sets (WD);
- Selecting, based on the comparing, a selected tool data set (WD) of the several tool data sets (WD) corresponding to the three-dimensional tool model (M) and/or the at least one model parameter (MP), or generating and selecting a generated tool data set (WD) corresponding to the three-dimensional virtual tool model (M) and or the at least one model parameter (MP);
- Generating a desired tool contour (SK) by fitting a reference contour (R) determined based on the selected or the generated tool data set (WD) or contained in the selected or the generated tool data set (WD) into the three-dimensional virtual tool model (M) under a marginal condition that removal of material is as minimal as possible;
- Machining of the tool (16) by removing material for producing an actual tool contour corresponding to the desired tool contour (SK).
Device (15) for machining a tool (16) by removing material, the device comprising:
- a machining unit (18) that is disposed to machine the tool (16) by removing material,
- at least one measuring device (23) that is disposed to generate measuring data to generate a three-dimensional virtual tool model (M) of the tool (16),
- a memory unit (20) in which several tool data sets (WD) are stored, individual ones of which include one or both of a reference contour (R) of the tool (16) and at least one tool parameter (WP) corresponding to a characteristic of the tool (16), wherein each tool data set (WD) is allocated respectively one machining program (PR), and
- a control unit (19) which is disposed to perform or control steps comprising:
- Performing a measurement of the tool (16) in three dimensions using the at least one measuring device (23) to create measured data,
- Generating a three-dimensional virtual tool model (M) of the tool (16) based on the measured data of the measuring device (23);
- one or both of comparing the three-dimensional virtual tool model (M) with the respective reference contour (R) and comparing at least one model parameter (MP) determined as a function of the virtual tool model (M) and corresponding to a characteristic of the tool (16)—with the respective tool parameter (WP) of a stored tool data set (WD);
- Selecting, based on the comparing, a selected tool data set (WD) of the several tool data sets (WD) corresponding to the three-dimensional tool model (M) and/or the at least one model parameter (MP), or generating and selecting a generated tool data set (WD) corresponding to the three-dimensional virtual tool model (M) and or the at least one model parameter (MP);
- Generating a desired tool contour (SK) by fitting a reference contour (R) determined based on the selected or the generated tool data set (WD) or contained in the selected or the generated tool data set (WD) into the three-dimensional virtual tool model (M) under a marginal condition that removal of material is as minimal as possible;
- Machining of the tool (16) by removing material for producing an actual tool contour corresponding to the desired tool contour (SK).
Dependencies are inferred from the claim text.