Tool path data generation apparatus for NC machine tool and numerical controller provided with it
First Claim
1. In an NC machine tool, a tool path data generation apparatus for automatically generating tool path data including position data on where to transfer a tool and cutting conditions for the tool, the tool path data generation apparatus comprising:
- a feature data extractor for extracting, on the basis of CAD-device-created geometry data on a workpiece to be machined by the machine tool, at least feature data relating to the three-dimensional final form of the workpiece;
a tool/cutting data storage for storing data including cutting-mode and tool information determined by the extracted feature data, and cutting-speed and depth-of-cut information determined by the material of which the workpiece consists;
a cutting method determining unit for determining an optimal cutting method for each of the final-form features of a workpiece, on the basis of the extracted feature data, and on the data stored in the tool/cutting data storage;
a tool path data generator for generating tool path data on the basis of the cutting method determined by the cutting method determining unit; and
a machining information generator for generating, on the basis of the cutting method determined by the cutting method determining unit and on information stored in the tool/cutting data storage, machining information including tool consumption to machine to final form, estimated time to tool wear-out, and estimated time to machine to final form.
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Accused Products
Abstract
Tool path data generation apparatus (41) that can speedily and securely generate tool path data on the basis of CAD data. The tool path data generation apparatus (41) includes a feature data extractor (6) to extract features in relation to at least a three-dimensional shape of a workpiece, a tool/cutting data storage (8) to store a cutting mode etc. in accordance with a feature shape, a cutting method setting unit (9) to set an optimal cutting method for each feature shape on the basis of the extracted feature data and the stored tool/cutting data, and a tool path data generator (13) to generate tool path data on the basis of set cutting method. An operator doesn'"'"'t have to input any data in generating tool path data, therefore tool path data can be speedily generated.
58 Citations
9 Claims
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1. In an NC machine tool, a tool path data generation apparatus for automatically generating tool path data including position data on where to transfer a tool and cutting conditions for the tool, the tool path data generation apparatus comprising:
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a feature data extractor for extracting, on the basis of CAD-device-created geometry data on a workpiece to be machined by the machine tool, at least feature data relating to the three-dimensional final form of the workpiece; a tool/cutting data storage for storing data including cutting-mode and tool information determined by the extracted feature data, and cutting-speed and depth-of-cut information determined by the material of which the workpiece consists; a cutting method determining unit for determining an optimal cutting method for each of the final-form features of a workpiece, on the basis of the extracted feature data, and on the data stored in the tool/cutting data storage; a tool path data generator for generating tool path data on the basis of the cutting method determined by the cutting method determining unit; and a machining information generator for generating, on the basis of the cutting method determined by the cutting method determining unit and on information stored in the tool/cutting data storage, machining information including tool consumption to machine to final form, estimated time to tool wear-out, and estimated time to machine to final form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification