Machine tool
AssigneeDmg Mori Co., Ltd.
InventorsShizuo Nishikawa, Masahiro Shimoike, Shuji Komatsu, Hiroki Nakao
Life of this patent
Estimating the term…
Abstract
Provided is a machine tool (1) which is capable of measuring machining accuracy of a workpiece (W) with high accuracy and enables the time required from machining to measurement of machining accuracy to be greatly reduced. The machine tool (1) machining a workpiece (W) while moving a tool and the workpiece (W) relative to each other includes a cover (2) separating from outside a machining area for machining the workpiece (W) therein, and temperature adjusting means (30) used in machining of the workpiece (W) to adjust an ambient temperature of the machining area.
Claims2
A machine tool machining a workpiece while moving a tool and the workpiece relative to each other, wherein:
- the machine tool includes:
- a cover separating from outside a machining area for machining the workpiece therein;
- temperature adjusting means used in machining of the workpiece to adjust an ambient temperature of the machining area;
- and
- an in-machine measurement system measuring a surface shape of the workpiece;
- the temperature adjusting means comprises:
- a temperature sensor detecting the ambient temperature;
- an air suction device sucking air out of the machining area;
- and
- a controller controlling a sucking operation of the air suction device such that air is sucked out of the machining area at a sucking quantity corresponding to the temperature detected by the temperature sensor, and such that air is sucked out by the air suction device at a maximum sucking quantity in a sucking capability of the air suction device for a predetermined period of time starting from a time when the machining of the workpiece is finished;
- and
- the controller controls such that the in-machine measurement system measures the surface shape of the workpiece when the temperature detected by the temperature sensor is equal to or lower than a measurement-allowing temperature previously determined as a temperature to allow measurement.
Dependencies are inferred from the claim text.