A numerical control device includes a main control unit, a processing program reading unit, and a tool moving path setting unit that sets moving paths of a processing tool between a plurality of recessed parts. The tool moving path setting unit includes: a tool retreat position setting unit that sets a retreat position to be assumed by the processing tool upon completion of internal surface processing; a cutting edge stop angle setting unit that sets a stop angle of a cutting edge, on the basis of a moving direction toward a next recessed part; and a tool retreat path setting unit that sets a retreat path of the processing tool. The stop angle is set in such a manner that a pointing direction of the cutting edge does not have a moving vector component oriented in a same direction as the moving direction.

A machining center is provided with: a base; a table that supports a workpiece; a main-shaft head that causes a tool to rotate around an axis of rotation of a main-shaft; a Z-axis drive device that causes the table to move with respect to the base along a Z axis parallel to the axis of rotation of the main-shaft; a W-axis drive device that causes the main-shaft head to move with respect to the base along a W axis parallel to the axis of rotation of the main-shaft; and a control device that controls the Z-axis drive device and the W-axis drive device so as to cause the tool to process the workpiece by causing the table and the main-shaft head to move along the Z axis and the W axis, respectively.

A control method of superimposition processing in an NC machine tool comprises providing at least one tool rest that performs machine processing to workpieces respectively held on a plurality of spindles, providing respective processing programs for performing respective machine processing to the workpieces held on the respective spindles, and inserting superimposition control program for performing superimposition processing during one of the respective processing programs is running. The superimposition processing is performed so that, during an operation of performing machine processing to a workpiece held on one of the plurality of spindles by one of the plurality of tools, the other operation of performing machine processing to a workpiece held on another one of the plurality of spindles by another one of the plurality of tools is superimposed.

A machine tool arrangement includes a machine tool having a sensor device for monitoring at least one part of the machine tool, and a control arrangement for receiving data of the sensor device and controlling at least one part of the machine tool. The machine tool arrangement includes a mobile communication device having an application. The control arrangement is connectable to the mobile communication device, such that the data of the sensor device is representable in the application and at least one part of the machine tool is controllable by way of the application. The machine tool arrangement includes a further mobile communication device having a further application. The control arrangement is connectable to the further mobile communication device, such that the data of the sensor device is representable in the further application and at least one part of the machine tool is controllable by way of the further application.

A software application executable on a machine tool system for machining a workpiece is configured for executing the steps of: instructing an image recording device to capture an image of a first workpiece having one or more hand-drawn notations, associating the one or more notations with at least one machining step of the machine tool system, presenting on a display device the at least one machining step of the machine tool system on or in relation to the captured image, and/or the first workpiece as the first workpiece will appear after machining the first workpiece according to the at least one machining step of the machine tool system, and optionally controlling a tool of the machine tool system for machining the first workpiece according to the one or more notations.

A numerical control device is intended for a machine tool that machines a workpiece using a multi-edge tool including a plurality of edges of different specifications, the numerical control device including: a tool information memory that stores edge type numbers in association with tool type numbers; a tool type-edge type selection command decoding unit that prefetches a plurality of blocks of a machining program, decodes a tool type selection command for selecting one of the tool types and/or an edge type selection command for selecting one of the edge types in the plurality of prefetched blocks, and generates internal information including the tool type selection command and/or the edge type selection command that have been decoded; and a tool selection unit that selects one tool with which the number of times of tool replacement is minimized during execution of at least the plurality of prefetched blocks.

A controller includes a determination circuit, a setting circuit, and a control circuit. The determination circuit is configured to determine whether a chatter vibration is occurring while a spindle is rotating and a workpiece is being cut. The setting circuit is configured to set an upper limit and a lower limit on a change amount of a rotational speed of the spindle. The control circuit is configured to determine the change amount randomly from a range between the upper limit and the lower limit and configured to rotate the spindle at a second rotational speed obtained by changing a first rotational speed by the change amount that has been determined if the chatter vibration is determined as occurring while the control circuit controls the rotational speed of the spindle at the first rotational speed.

A computer-implemented method is disclosed that is usable during production of an assembly using at least a first machine tool. The method comprises retrieving a predetermined production plan for the assembly, wherein the predetermined production plan comprises a plurality of operations using the first machine tool; acquiring input data to determine a production deviation from the predetermined production plan; determining, responsive to determining the production deviation, a modified production plan for the assembly by substituting one or more substitute operations for one or more of the plurality of operations of the predetermined production plan; and transmitting instructions to the first machine tool corresponding to the one or more substitute operations of the modified production plan.

The present invention relates to an airplane structure stiffener repair method based on measured data guidance. The method includes: respectively measuring point cloud data on a surface of a structure stiffener and point cloud data on a surface of a to-be-assembled position of a body; respectively extracting all assembly plane features in two point cloud data based on an RANSAC algorithm; performing pre-alignment according to the plane features; performing accurate alignment based on a signed distance constraint according to repair tolerance requirements; and calculating a repair allowance, and generating a machining path to serve as an accurate machining basis. According to the method in the present invention, a repair amount can be accurately calculated by virtue of an alignment algorithm of the signed distance constraint, and an envelope relationship during model matching is met.

An integrated system for customized machine tool detection is disclosed in the present invention. The integrated system includes a communication module, a database, a display module, an operation interface, and an integrated module. The integrated system for customized machine tool detection is utilized to save a plurality of machine tool detection sub-systems with a first protocol, make a user choose at least one machine tool detection sub-systems to be a customized machine tool detection system to detect a working machine tool.