Fanuc Corporation

Shintarou Zeniya

Takeshi Mochida

To provide a numerical controller that is capable of analyzing a machining program so as to determine whether machining is machining placing emphasis on accuracy and machining placing emphasis on speed and vary an allowable speed difference. The numerical controller includes a determination unit and a corner deceleration control unit. The determination unit analyzes a machining program so as to determine which machining is to be performed between machining placing emphasis on accuracy and machining placing emphasis on speed. The corner deceleration control unit executes corner deceleration control based on a speed difference between cutting feed speeds on blocks leading and following a corner and an allowable speed difference which is predetermined. At this time, the corner deceleration control unit varies the allowable speed difference in accordance with a determination result of the determination unit.

Numerical controller for controlling corner speed of a machine

A numerical controller includes a neighboring point search function that moves a tool controlled by a moving axis and a rotation axis onto a machining path directed by a machining program within the range of a neighboring point distance from a current position of the tool. When searching the neighboring point, the numerical controller determines a neighboring point with consideration for both a tool center point position and a tool attitude. By employing this search method, even when a plurality of block start points are present in the neighboring point distance from the current tool position, a block start point of the block originally desired to be restarted can be determined as a neighboring point.

Numerical controller capable of neighboring point search with consideration for tool attitude

A numerical controller controls a laser beam machine in accordance with a program and performs three-dimensional laser beam machining on a workpiece. The numerical controller obtains a ratio between a machining speed at an upper surface of the workpiece and a machining speed at a lower surface of the workpiece on the basis of a posture of a nozzle of the laser beam machine and changes a machining condition specified by the program on the basis of the obtained ratio.

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Yamanashi, Japan

Shintarou Zeniya