Dmg Mori Company Limited

Koji Iiyama

Shizuo Nishikawa

Morihiro Hideta

Hiroki Nakao

Kengo Kawai

Masataka Sakamoto

Katsuhiko Ono

Norihiro Kumagai

A machining condition determining apparatus () includes a first setter () setting a cutting speed of a cutting tool, a storage () storing a maximum output value of a drive motor rotating a spindle holding the cutting tool and a number of revolutions of the drive motor corresponding to the maximum output value, a number-of-revolutions determiner () obtaining a steady-state value of the maximum output value of the drive motor stored in the storage () and determining a number of revolutions of the drive motor corresponding to the obtained steady-state value of the maximum output value, and a tool-diameter determiner () calculating a tool diameter of the cutting tool based on the cutting speed set by the first setter () and the number of revolutions of the drive motor determined by the number-of-revolutions determiner ().

Machining condition-determining device and cutting tool selection apparatus

A machining state display apparatus includes an achievement degree data storage () storing machining condition data relating to each of sets of machining conditions and achievement degree data relating to degrees of achievement of evaluation items to be obtained in machining under each of the sets of machining conditions, with the machining condition data and the achievement degree data being associated with each other, a display part () displaying a set of machining conditions and degrees of achievement of the evaluation items corresponding thereto on a display (), and an input part () inputting a signal for selecting one from the evaluation items and a required degree of achievement for the selected evaluation item. The display part () recognizes, based on the selected evaluation item and the required degree of achievement, a set of machining conditions corresponding to the required degree of achievement for the selected evaluation item as well as the degrees of achievement of other evaluation items to be obtained under the set of machining conditions by referring to the achievement degree data storage (), and displays the recognized degrees of achievement on evaluation-item basis and displays the recognized set of machining conditions.

Machining state display apparatus

A machining status display apparatus includes a display device having a display screen, a stability lobe picture creator creating, based on specifications of a tool to be used, display picture data for displaying a stability lobe as a correlation diagram between a spindle rotation speed and a limit depth of cut of the tool above which regenerative chatter occurs, a first machining information picture creator creating display picture data for displaying machining related information other than regenerative chatter corresponding to set machining conditions, and a display controller displaying the stability lobe and the machining related information with the stability lobe and the machining related information superimposed one on another on the display screen of the display device based on the display picture data created by the stability lobe picture creator and the display picture data created by the first machining information picture creator.

Machining status display apparatus

A machining status display apparatus includes an achievement degree data storage storing achievement degree data relating to a degree of achievement of each of predetermined machining-related evaluation items within a range determined by attainable maximum and minimum values of the evaluation item and storing the degrees of achievement of the evaluation items obtained under each of predetermined sets of machining conditions in association with the set of machining conditions, a display part displaying the degrees of achievement of the evaluation items corresponding to a selected set of machining conditions by referring to the data in the achievement degree data storage, and an input part inputting a selection signal for selecting a set of machining conditions. The display part displays the degrees of achievement of the evaluation items obtained under the set of machining conditions corresponding to the selection signal by referring to the data in the achievement degree data storage.

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Nara, Japan

Koji Iiyama