Fanuc Corporation

Makoto Haga

Kentaro Fujibayashi

Masahiko Hosokawa

Masaaki Shindou

Takao Sasaki

Yousuke Koyanaka

Naoto Sonoda

Makoto Suzuki

Takahiro Haraguchi

Satoshi Kimura

Disclosed is a numerical controller that has a cutting in/out motion inserting function and configured to control a machine tool that performs lathe-turning machining in which a cutting tool moves in contact with a rotating workpiece. The numerical controller includes a cutting in/out motion inserting unit that generates a program to perform cutting in/out motion, based on operation conditions analyzed by a cutting in/out motion operation conditions analysis unit and inserts the generated program of performing the cutting in/out motion to a program to perform the lathe-turning machining.

Numerical controller having cutting in/out motion inserting function or circular motion inserting function

A controller including: a positional deviation calculating unit that calculates positional deviation using a position command directed to a servo motor for driving a cutting tool, etc., and a position feedback value corresponding to the position of the cutting tool, etc.; an oscillation command calculating unit that calculates an oscillation command using the position command and a spindle axis angle of the rotated work, etc., or using the position feedback value and the spindle axis angle; an oscillation offset calculating unit that calculates an offset for the oscillation command using the positional deviation, the oscillation command, and the spindle axis angle; and a driving unit that determines a drive signal for the servo motor based on the positional deviation, the oscillation command, and the oscillation offset, and outputs the drive signal.

Servo controller, control method, and computer-readable recording medium for machine tool used for oscillating cutting

A numerical control device includes an approach path calculation unit configured to calculate an approach path to the restarting machining point of the tool, a manual operation approach command unit, and an approaching operation switching unit, wherein the approaching operation switching unit is configured to receive switching request from an operator during the manual operation approach and switch to the automatic operation approach, or, receive manual intervention of the operator during the automatic operation approach and switch to the manual operation approach.

Numerical control device for safety approach to restarting machining point

A numerical controller for controlling a machine receives an instruction to reestablish a machine coordinate value of a movable part of the machine and stops a servo motor driving the movable part. When the servo motor is stopped, the numerical controller acquires position information of a position detector provided to the servo motor. Then, the numerical controller updates the machine coordinate value of the movable part based on the position information, and further updates the absolute coordinate value of the movable part based on the updated machine coordinate value.

Numerical controller reestablishing machine coordinate value by using absolute position detector

A numerical control device including a programmed machining restart function includes a first display unit for displaying, as a list, specific codes indicating limit points of machining steps of a machining program, a specification unit for specifying, among the specific codes displayed as a list by the first display unit, a specific code that is selected, and a program restart unit for executing, by using a location in a memory of the specific code that is specified by the specification unit, a restart operation of the machining program from a machining step including the specific code that is specified.

Numerical control device provided with programmed machining restart function

In a canned cycle, a straight path is set from a cutting completion position in a cycle to a cutting start position in a next cycle. Furthermore, when there is a possibility that the set straight path interferes with a workpiece, a region for which the workpiece has been already cut is determined, and a path not interfering with the workpiece is set with as short length as possible.

Numerical control apparatus having function of reducing path to start point in canned cycle

The numerical controller has a program restart function and acquires program restart block data for resuming and ending suspended machining of a workpiece. The numerical controller analyzes a block of a machining program, and upon determining that a moving path of a tool, which is determined by the block, passes a boundary of a predetermined machining area of each controlled axis of a machine tool, the numerical controller acquires the program restart block data of that block and performs partial machining of the workpiece based on the acquired program restart block data.

Numerical controller having program restart function

A pre-read/analysis process is carried out to analyze a code in a block, and whether or not the analyzed data contains an inter-path waiting code is determined. When the block contains an inter-path waiting code, the pre-read/analysis process is suspended, and whether or not a preset specified condition is met is judged. When the specified condition is met, inter-path waiting is started. When the inter-path waiting is established, code analysis data created before creation of execution data is discarded, and a pre-read/analysis process on the next block is immediately started.

Numerical controller with inter-path waiting function

A machine tool has an oscillating axis that reciprocates in an optional region. A numerical controller that controls the machine tool designates positions of a lower dead point and a upper dead point when the oscillating axis of the machine tool reciprocates, and a reference speed during the oscillating operation when the oscillating axis reciprocates. The numerical controller then calculates, from the current position of the oscillating axis, a current phase in the case where one stroke of the oscillating axis is defined as one cycle, and calculates the speed of the oscillating axis at the current phase based upon the calculated current phase and the reference speed.

Numerical controller having oscillating operation function capable of changing speed in optional section

A numerical controller with a program resuming function of acquiring program-resuming block data with which a machining program is resumed without producing a scratch on a workpiece. It is determined whether there are registered non-cutting commands. Whether all the registered non-cutting commands are analyzed is determined. Data of registered non-cutting command is read, and whether a block currently being analyzed includes a non-cutting command is determined. It is determined whether or not the registered non-cutting command is one in accordance with which data is acquired at a block start point. Program-resuming block data is acquired at the block start point or at a block end point, the acquired data is stored into a memory, and a process is completed.

Numerical controller with program resuming function

A numerical controller capable of performing axis reconfiguration of control axes in at least two paths without need for the paths to wait. A program block is read and it is determined whether or not the read block includes an axis detachment command. If the block includes the axis detachment command block, an action axis attribute of an control axis designated by the axis detachment command is altered to a non-action axis attribute. Further, if the read block includes an axis allocation command, it is determined whether or not an control axis designated by the axis allocation command becomes a non-action axis, and when the control axis has the non-action axis attribute, the non-action axis attribute of the control axis is altered to a designated path's action axis attribute. Thus, the axis reconfiguration processing in one path can be performed separately from axis reconfiguration processing in another path.

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Minamitsuru-gun, Japan

Makoto Haga