A machine tool capable of easily acquiring the distance between a spindle of a first unit and a holder of a second unit. A machine tool according to one embodiment comprises: relative movement mechanisms which move a table for supporting an object to be machined relatively to a support unit for supporting the first N unit and the second unit: a movement control unit which controls the relative movement mechanisms; a relative position detection unit which detects the position of the table relative to the support unit; and a distance calculation unit which calculates the distance between the first unit and the second unit on the basis of a relative position when the first unit and the table reach a first relative positional relationship and a relative position when the second unit and the table reach a second relative positional relationship.

Disclosed is a position controller for a tilting head in a machining center. The position controller includes an offset attachment having a body combined to the tilting head and a spherical contact secured to the body, an offset detector built in the machining center such that the offset detector move out into a process area of the machining center and automatically detects a tool offset from a contact point with the spherical contact, a storing unit individually storing first and second tool offsets by respective rotation positions of the tilting head, and an operator generating a transform offset of the first tool offset by a rotational transform and a center error vector from the transform offset and the second tool offset. Accordingly, the center error of the tilting head is automatically detected and corrected in the machining center.

A remote machining optimization system for a machine tool is provided, which includes an input unit configured to input a machining parameter including a spindle speed and a cut depth; a receiving unit configured to receive sound signals and vibration signals from the machine tool; a processing unit configured to generate a machining program with a program generating module, to modify the spindle speed and the cut depth according to the sound signals with a speed optimization module and a depth optimization module, respectively; a communication unit configured to send the machining program to the machine tool; and a storage unit configured to store the modified spindle speed and the cut depth.

Disclosed is a position controller for a tilting head in a machining center. The position controller includes an offset attachment having a body combined to the tilting head and a spherical contact secured to the body, an offset detector built in the machining center such that the offset detector move out into a process area of the machining center and automatically detects a tool offset from a contact point with the spherical contact, a storing unit individually storing first and second tool offsets by respective rotation positions of the tilting head, and an operator generating a transform offset of the first tool offset by a rotational transform and a center error vector from the transform offset and the second tool offset. Accordingly, the center error of the tilting head is automatically detected and corrected in the machining center.

A remote machining optimization system for a machine tool is provided, which includes an input unit configured to input a machining parameter including a spindle speed and a cut depth; a receiving unit configured to receive sound signals and vibration signals from the machine tool; a processing unit configured to generate a machining program with a program generating module, to modify the spindle speed and the cut depth according to the sound signals with a speed optimization module and a depth optimization module, respectively; a communication unit configured to send the machining program to the machine tool; and a storage unit configured to store the modified spindle speed and the cut depth.

A machine tool capable of easily acquiring the distance between a spindle of a first unit and a holder of a second unit. A machine tool according to one embodiment comprises: relative movement mechanisms which move a table for supporting an object to be machined relatively to a support unit for supporting the first N unit and the second unit: a movement control unit which controls the relative movement mechanisms; a relative position detection unit which detects the position of the table relative to the support unit; and a distance calculation unit which calculates the distance between the first unit and the second unit on the basis of a relative position when the first unit and the table reach a first relative positional relationship and a relative position when the second unit and the table reach a second relative positional relationship.

A computing device computes a position of a tool that cuts a ridge line formed by a peripheral wall face and a cylinder peripheral face forming a through hole, having the shape of a column, penetrating through a workpiece. The computing device calculates the position on the basis of: a first basis vector and a second basis vector on a plane perpendicular to a tangent to the ridge line; workpiece data; an ellipse formed by the plane and the column; a predetermined processing width; and a radius of the tool.