A numerical control device controlling a machine tool capable of machining on orthogonal three axes includes a parameter storage to store a noise-command allowable width to be used for determining whether to perform movement based on a movement command, and a path-correction processor to compare an absolute value of a movement amount according to a movement command in a command non-target axis direction that is a direction of an axis not included in a designated plane with the noise-command allowable width when a machining program block includes the movement command in the command non-target axis direction, determine the movement command in the command non-target axis direction to be a noise command when the absolute value of the movement amount according to the movement command in the command non-target axis direction is smaller, and perform path correction to set a movement amount according to the noise command to zero.

A Coordinate Measuring Machine (CMM) system comprising a CMM, a rotary table, and a rotation arrangement, wherein the CMM system is configured to be calibrated by determining the 6 dof pose of a jig, and to a method for calibrating. The jig may be mounted such that a current pose of the jig is associated with a current pose of the rotary table with respect to the CMM. The rotary table may be moved into multiple poses, and the 6 dof pose of the jig is measured for each of the multiple poses of the rotary table. An error map is generated, based on the angles associated with the poses of the rotary table, and is used to generate a coordinate transformation from the CMM coordinate system to the part coordinate system, which is associated with the rotary table, based on the error map.

A 5-axis processing machine includes a mounting table on which a tool and a work piece are placed; and a control unit; wherein the mounting table is moved relatively by three linear axes and two rotation axes based on NC data, the two rotation axes include a first axis and a second axis, when the control unit calculates a rotation angle of the two rotation axes, the control unit acquires an axis vector Na that specifies an actual first axis direction and an axis vector Nc that specifies an actual second axis direction, the control unit calculates a posture vector K that specifies a posture at a time of processing the work piece with respect to the tool from the NC data, the control unit calculates, as a solution of a following equation (4), an actual rotation angle θ around the first axis of the tool.

A 5-axis processing machine includes a mounting table on which a tool and a work piece are placed; and a control unit including a calculation unit, a determination unit, and a correction unit; wherein the mounting table is moved relatively by three linear axes and two rotation axes based on NC data, the two rotation axes include a first axis and a second axis, the calculation unit calculates an orientation of the work piece with respect to the tool at a time of processing from NC data and a directions of rotation centers of an actual first axis and an actual second axis, the determination unit determines whether or not the calculated orientation of the work piece is included in an inoperable range, the inoperable range being the inoperable angle range, and the correction unit corrects the orientation of the work piece with respect to the tool.

A 5-axis processing machine includes a mounting table on which a tool and a work piece are placed; and a control unit; wherein the mounting table is moved relatively by three linear axes and two rotation axes based on NC data, the two rotation axes include a first axis and a second axis, when the control unit calculates a rotation angle of the two rotation axes, the control unit acquires an axis vector Na that specifies an actual first axis direction and an axis vector Nc that specifies an actual second axis direction, the control unit calculates a posture vector K that specifies a posture at a time of processing the work piece with respect to the tool from the NC data, the control unit calculates, as a solution of a following equation (4), an actual rotation angle θ around the first axis of the tool.

A 5-axis processing machine includes a mounting table on which a tool and a work piece are placed; and a control unit including a calculation unit, a determination unit, and a correction unit; wherein the mounting table is moved relatively by three linear axes and two rotation axes based on NC data, the two rotation axes include a first axis and a second axis, the calculation unit calculates an orientation of the work piece with respect to the tool at a time of processing from NC data and a directions of rotation centers of an actual first axis and an actual second axis, the determination unit determines whether or not the calculated orientation of the work piece is included in an inoperable range, the inoperable range being the inoperable angle range, and the correction unit corrects the orientation of the work piece with respect to the tool.

A machine tool controller according to an aspect of the present disclosure controls a machine tool having a plurality of drive axes, the machine tool controller including: an input processing unit which displays an input screen including a schematic projection drawing of a driven body that is driven by the plurality of drive axes and an input box that allows for a positional relationship of the driven body in the schematic projection drawing to be inputted, and stores a numerical value inputted to the input box; a drawing information management unit which stores decoding information indicating a relationship between the numerical value inputted to the input box and a position or drive amount of the drive axis; and a parameter processing unit which converts the numerical value inputted to the input box into a drive parameter of the plurality of drive axes, based on the decoding information.

A calibration method for numerical controlled machine tools (1), which uses a kinematic model to generate a compensation model for the positioning error occurring with the movement of the linear (X, Y, Z) and rotation axes (B, C, A) of a machine tool (1). The calibration method measures the positions of a calibration ball (6) with a measurement sequence which includes the combined movement of the calibration ball (6) around two rotation axes (C, B or C, A), wherein the measurements around a first rotation axis (C) include at least two rotational position movements around a second axis (B or A).

A numerical control device is a numerical control device that controls a machine tool including a plurality of axes, and includes a reading unit that reads a machining program for machining a workpiece, and when the machining program read by the reading unit is a machining program for simultaneously operating five or more axes of the plurality of axes, controls operation of the five or more axes to be simultaneously operated in the machining program by dividing the operation into a plurality of sets of operation of four or less axes.

A numerical control device is a numerical control device that controls a machine tool including a plurality of axes, and includes a reading unit that reads a machining program for machining a workpiece, and when the machining program read by the reading unit is a machining program for simultaneously operating five or more axes of the plurality of axes, controls operation of the five or more axes to be simultaneously operated in the machining program by dividing the operation into a plurality of sets of operation of four or less axes.