Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Masaki Ryu

Makoto Sakagami

Kenji Nishiwaki

Tomonori Sato

Yukihiro Iuchi

Yuya Kado

Susumu Hamamoto

In a numerical control devicewhich controls positions of respective axes of a machine tool according to a machining program, a commandinstructed to the machining programis analyzed by an analyzing unit, thereby obtaining movement dataand a movement type, an acceleration-deceleration data selection unitselects acceleration-deceleration dataaccording to the movement type, and an interpolation and acceleration-deceleration unitgenerates a position commandby performing an interpolation on a movement route, which is instructed to the movement data, according to a command speed and performing acceleration-deceleration according to the acceleration-deceleration data

Numerical control device

A numerical control device includes: a switching unit switching between a first processing mode in which a position command for an amplifier is generated by performing interpolation process and acceleration/deceleration process on a program command in a machining program, and a second processing mode in which a position command every intra-amplifier control cycle for the amplifier is generated by performing acceleration/deceleration process on a command generated every intra-amplifier control cycle, which is a control cycle in the amplifier; a normal analysis unit extracting movement data on a machine tool by analyzing the program command when operating in the first processing mode; an interpolation processing unit obtaining first interpolated data by performing the interpolation process on the movement data when operating in the first processing mode; and a fast analysis unit extracting interpolated movement data as second interpolated data by analyzing the program command when operating in the second processing mode.

Numerical control device and numerical control system

A chopping control process, for controlling a machine tool during chopping, i.e., shaping or cutting a workpiece, is allowed without adding an extra axis dedicated just to the chopping, i.e., a chopping dedicated axis. To correct a chopping operation (i.e., an operation of shaping or cutting a workpiece), for a movement error in the contour control (i.e., control of contour along which the workpiece is cut) with a positioning axis or rotation axis, an interpolation processing partand an axis control processing partare provided with a function of generating the movement data for performing the chopping operation by controlling two or more axes at the same time and a function of correcting the chopping operation.

Numeric controller

To provide a numerical control apparatusprovided with a plurality of skip signals (external signals), in which a processing program is easily fabricated even in the case where the tool is moved to the final specified position by decreasing stepwise, or increasing or decreasing stepwise the speed, every time a skip signal is input into the numerical control apparatus. The numerical control apparatuscomprises, in one block of a numerical control processing program, a skip command capable of issuing a plurality of optional feed speed commands for commanding an optional feed speed different from a feed speed by a normal feed command in the one block, the plurality of optional feed speed commands corresponding to a plurality of skip signals input from the outside, and an interpolation processing partand an axis control processing partfor making the acceleration and deceleration control upon an input of the plurality of skip signals when the skip command is given.

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Tokyo, Japan

Masaki Ryu