This machine tool is provided with an arithmetic control unit that: controls a motor so as to measure the positions of raw material holes in a boom using an imaging camera held on a main shaft (S111-S113); calculates the positions of the center axes of the raw material holes on the basis of the information about the positions of the raw material holes captured by the imaging cameras (S114, S115); calculates distances between two center axes of interest (S116); and, when at least one of the calculated distances does not meet a prescribed value (S117), calculates the most suitable positions for process holes from minimum holes that comply with formulae (1111-1) to (1114-1) and (1141-1) to (1144-1) on the basis of equations (1101), (1111) to (1114), and (1141) to (1144) (S121); and controls the motor so as to form process holes in the positions calculated as the most suitable and cuts raw material holes using a tool held on the main shaft (S122, S123).

A first drive acts on a machine element via a transmission and a second drive acts on the machine element directly. First and second closed-loop speed controllers determine respective first and second setpoint force values for the first and second drives with the aid of the difference between the setpoint speed value and of the actual speed value and activate the first drive and/or the second drive as a function of the respective first and second setpoint force values. Respective first and second pilot force values are determined from a first axis inertia scaled by a first scaling factor (), and second axis inertia scaled by a second scaling factor (1).

Device for cutting expanded polystyrene foam volumes or the like, obtaining double-curvature surfaces, comprising a first pair of linear guides; over each of the linear guides two pairs of plates arranged over skids are moving, where each pair of plates is connected by a horizontal beam; the two pairs of plates and the pair of horizontal beams allow supporting and fixing a block of material of expanded polystyrene foam or the like for cutting; the block of material supported on the plates is displaced by a first pair of synchronous belts and pulleys, which are driven by a first pair of step motors, which are simultaneously activated; where the block of material in its movement faces a rectangular frame which is arranged perpendicularly to the movement path of the block, with said rectangular frame having a fixed position and a flexible foil, which is covered with a sheath of thermal and electrical insulation, over which a resistive heating wire is helically wound, through which an electrical current circulates that heats the resistive heating wire and vaporizes the zone that is previous to physical contact with the block of material during the displacement thereof.

There is provided a guide dresser for milling a saw guide, the guide dresser comprising first and second cutter assemblies that are slidably mounted on a rail or slide system so as to be adjustable, in operation, between an open position and a closed position. There is also provided cutter heads and methods for milling a saw guide.

There is provided a guide dresser for milling a saw guide, the guide dresser comprising first and second cutter assemblies that are slidably mounted on a rail or slide system so as to be adjustable, in operation, between an open position and a closed position. There is also provided cutter heads and methods for milling a saw guide.

A control device that controls polygon turning to simultaneously rotate a workpiece and a tool and form a polygon on a surface of the workpiece acquires information on misalignment in the radial direction of a cutting tool attached to a tool body and generates pluses to correct the misalignment in the radial direction of the cutting tool. Furthermore, the control device outputs the pulses to an X-axis servo motor and moves a tool in the opposite direction to the misalignment in the radial direction of the cutting tool. Accordingly, the misalignment in the radial direction of the cutting tool is corrected, and thereby the precision of the polygon turning is improved.

A control device that controls polygon turning to simultaneously rotate a workpiece and a tool and form a polygon on a surface of the workpiece acquires information on misalignment in the radial direction of a cutting tool attached to a tool body and generates pluses to correct the misalignment in the radial direction of the cutting tool. Furthermore, the control device outputs the pulses to an X-axis servo motor and moves a tool in the opposite direction to the misalignment in the radial direction of the cutting tool. Accordingly, the misalignment in the radial direction of the cutting tool is corrected, and thereby the precision of the polygon turning is improved.

Provided are a control device and a control method for a machine tool which are capable of further reducing a command-waiting time. This control device for a machine tool which controls synchronized operation of a main shaft and a feed shaft comprises: a numerical value control unit; a main shaft control unit; a rotation detection unit. The numerical value control unit has a main shaft command output unit which, when a cutting operation and pulling-out operation are carried out from a machining start position to a target position an arbitrary number of times, acquires from the tapping program the rotation amount and the maximum rotation speed of the main shaft in the cutting operation and pulling-out operation and which supplies the rotation amount and the maximum rotation speed of the main shaft to the main shaft control unit as the main shaft command.

Provided are a control device and a control method for a machine tool which are capable of further reducing a command-waiting time. This control device for a machine tool which controls synchronized operation of a main shaft and a feed shaft comprises: a numerical value control unit; a main shaft control unit; a rotation detection unit. The numerical value control unit has a main shaft command output unit which, when a cutting operation and pulling-out operation are carried out from a machining start position to a target position an arbitrary number of times, acquires from the tapping program the rotation amount and the maximum rotation speed of the main shaft in the cutting operation and pulling-out operation and which supplies the rotation amount and the maximum rotation speed of the main shaft to the main shaft control unit as the main shaft command.

To enable simple identification of a workpiece with little effort during machining of a workpiece on a processing machine, a marking method is provided which is to be carried out via the processing machine. The method includes a) providing a tool on a rotatable tool holder of the processing machine, b) relative linear movement of the tool holder and the workpiece along a line on the surface of the workpiece, and c) controlling the distance of tool holder and workpiece during the linear movement, so that a pattern of markings is produced along the line by machining with the tool to form the identification mark on the surface of the workpiece. Furthermore, a readout method, a machining method and a processing machine configured for carrying the method are provided.