A cutting machine is provided with a machine main body and an NC device. The NC device controls the machine main body and has a tool radius compensation amount calculation unit, a machining path calculation unit, and a drive control unit. The tool radius compensation amount calculation unit generates tool radius compensation information. The machining path calculation unit generates a tool radius compensation control signal. The drive control unit generates a drive control signal. The machine main body has a machining unit and a tool path control unit. The machining unit cuts a workpiece by changing a relative position thereof with respect to the workpiece. Based on the drive control signal, the tool path control unit controls a tool path corresponding to a cutting tool and having a non-circular shape.

There is proposed a method for examining the clamping state of a tool holder or tool which is clamped in a tool clamping device of a rotor unit of a motor-driven machine tool unit, with the spacing of the sensor head from a component of the rotor unit being measured, with a recording of at least one time and/or position-related sequence of the spacing values measured with the sensor head, wherein for improved integration of the method the recording of a first and a second time and/or position-related sequence is carried out during an acceleration of the rotation of the rotor unit with respect to the stator unit, in particular when the rotor unit is started up, wherein the time and/or position-related information of the sequence vectors of the first and/or second sequence is scaled using the respective associated current speed (v.sub.0).

An arrangement including a machine tool with a chuck, a measuring device, a robot arm as well as a control device. The chuck is rotatable about a chuck axis. The robot arm carries at its free end a gripping device for reception of a workpiece. The measuring device has two sensor units. The measuring device has two sensor units. By means of the control device an automatic adjustment method can be carried out. First the robot arm is controlled for gripping a workpiece and subsequently the workpiece is positioned in the range of the measurement locations of the sensor units depending on measurement signals such that the deviation in the inclination and the offset between the workpiece axis and the chuck axis is within a predefined tolerance range. This procedure is at least carried out in two different rotation positions and is iteratively repeated if necessary.

An estimating device estimating a rotary axis position of a workpiece includes first and second position acquisition units acquiring tool positions in first and second directions, a load acquisition unit acquiring first and second directional loads of the tool in the first and second directions, a determination unit determining whether or not the first and second directional loads each are a threshold or less, a turning control unit performing a lathe turning on the workpiece until the first directional load becomes the threshold or less and thereafter performing a lathe turning thereon until the second directional load becomes the threshold or less, and an estimating unit estimating the rotary axis position based on a first directional position of the tool when the first directional load has become the threshold or less, and a second directional position thereof when the second directional load has become the threshold or less.

A method for the mechanical correction of geometric motion errors of a positioning machine having at least two machine frame components and at least one axis movement assembly for the relative movement of the machine frame components, the at least one axis movement assembly comprising a plurality of axis guide components, each axis guide component and each machine frame component having a mounting surface. A mounting surface correction profile is determined for the considered axis, whereas the mounting surface correction profile describes the correction amounts in function of the position for the mechanical correction of the considered axis. The determined mounting surface correction profile is imparted to the mounting surface of the axis guide component or to the mounting surface of the machine frame component of the considered axis by machining.

There is proposed a method for examining the clamping state of a tool holder or tool which is clamped in a tool clamping device of a rotor unit of a motor-driven machine tool unit, with the spacing of the sensor head from a component of the rotor unit being measured, with a recording of at least one time and/or position-related sequence of the spacing values measured with the sensor head, wherein for improved integration of the method the recording of a first and a second time and/or position-related sequence is carried out during an acceleration of the rotation of the rotor unit with respect to the stator unit, in particular when the rotor unit is started up, wherein the time and/or position-related information of the sequence vectors of the first and/or second sequence is scaled using the respective associated current speed (v.sub.0).

An integrated online dynamic balance terminal by 3D rapid prototyping includes a central tapered hole formed at a lower portion thereof, a plurality of identical balance cavities peripherally and spacedly formed on the integrated online dynamic balance terminal. Each two the adjacent balance cavities are separated by a cavity partition. The integrated online dynamic balance terminal further has a plurality of guiding channels indently formed on an inner peripheral surface thereof, wherein each of the four guiding channels communicates with a corresponding balance cavity through a corresponding trapezoidal hole. The integrated online dynamic balance terminal has a plurality of bored holes spacedly formed on an engagement surface. The integrated online dynamic balance terminal is configured from 3D rapid prototyping so as to form an integral one-piece structure, wherein some portions requiring high precision are arranged to undergo additional machining processes.

A cutting machine is provided with a machine main body and an NC device. The NC device controls the machine main body and has a tool radius compensation amount calculation unit, a machining path calculation unit, and a drive control unit. The tool radius compensation amount calculation unit generates tool radius compensation information. The machining path calculation unit generates a tool radius compensation control signal. The drive control unit generates a drive control signal. The machine main body has a machining unit and a tool path control unit. The machining unit cuts a workpiece by changing a relative position thereof with respect to the workpiece. Based on the drive control signal, the tool path control unit controls a tool path corresponding to a cutting tool and having a non-circular shape.

An estimating device estimating a rotary axis position of a workpiece includes first and second position acquisition units acquiring tool positions in first and second directions, a load acquisition unit acquiring first and second directional loads of the tool in the first and second directions, a determination unit determining whether or not the first and second directional loads each are a threshold or less, a turning control unit performing a lathe turning on the workpiece until the first directional load becomes the threshold or less and thereafter performing a lathe turning thereon until the second directional load becomes the threshold or less, and an estimating unit estimating the rotary axis position based on a first directional position of the tool when the first directional load has become the threshold or less, and a second directional position thereof when the second directional load has become the threshold or less.

A balance and runout amount adjustment system for a rotary tool includes a rotary tool constituted of a tool holder mounted on a spindle, a balance determining device configured to obtain outer circumference position data of the rotary tool and to determine a mass balance of the rotary tool based on the outer circumference position data obtained, in the course of rotation of the rotary tool and a runout determining device configured to obtain shape data of the rotary tool and to determine a runout amount of the rotary tool based on the shape data obtained, in the course of rotation of the rotary tool. The rotary tool is configured to be capable of adjustment of the mass balance based on the result of the determination made by the balance determining device and capable also of adjustment of the runout amount based on the result of the determination made by the runout determining device.