| 摘要 |
PROBLEM TO BE SOLVED: To provide a machine tool minimizing a load on a worker, and efficiently performing the machining of a work in a short time even when the work is clamped by means of a clamping means not having centrality. SOLUTION: This machine tool comprises a spindle 12 extended in the Z-axis direction and provided with an electromagnetic chuck 18 for clamping the work W on its upper end, a tool magazine for accommodating a tool T and a centering jig 20, an automatic tool replacement device 17 for replacing the tool T and the like between the tool magazine and the tool spindle, and a deflection measuring device 19 for measuring the deflection of the work W loaded on the electromagnetic chuck 18, the centering of the work W is automatically performed by the centering jig 20 mounted to the tool spindle until the deflection of the work W is kept within an allowable range, while calculating the correction amount of the work W on the basis of the deflection of the work W measured by the deflection measuring device 19 before the work W is clamped by the electromagnetic chuck 18. COPYRIGHT: (C)2004,JPO |
