The invention relates to a method for collision avoidance of a laser machining head (102) in a machining space (106) of a laser machining tool (100), having the steps of: —Monitoring a workpiece (112) in the machining space (106) with at least one optical sensor; —Capturing images of the workpiece (112); —Detecting a change in an image of the workpiece (112); —Recognising whether the change comprises an object standing upright relative to the workpiece (112); —Checking for a collision between the upright object and the laser machining head (102) based on a predetermined cutting plan and/or the current position (1016) of the laser machining head; —Controlling the drives for moving the laser machining head (102) for collision avoidance in case of recognised risk of collision.

An electromagnetic immunity test system includes a data acquisition and control device, a linear module, an electromagnetic disturbance simulator, and an upper computer. The data acquisition and control device is in a data connection to the linear module, the electromagnetic disturbance simulator, and the upper computer. The linear module includes a grating ruler; and the linear module is disposed on the numerical control machine tool to measure location data of the sliding table of the numerical control machine tool and transmit the location data to the data acquisition and control device. The electromagnetic disturbance simulator is configured to generate and transmit an electromagnetic signal to the numerical control system. The data acquisition and control device is configured to read the location data in real time and transfer the real-time location data to the upper computer.

A method processes a workpiece using a device. The device has a processing machine configured for three-dimensionally processing the workpiece, and a tool head having a tool. The tool head is movable about at least a first axis and a second axis. The method is carried out by the device. The method includes: capturing input data concerning a contour of the workpiece, a contour of the tool head, a distance between the tool head and the workpiece, the first axis, and the second axis; processing the input data to form feature data; processing the feature data in a machine learning algorithm of the device; and outputting a forecast from the machine learning algorithm regarding a collision of the tool head with the workpiece or some other part of the processing machine.

A method and system simulates a work process on a machine tool using a virtual machine. The virtual machine is set up to simulate the work process on the machine tool using machine data, workpiece data, and tool data as a function of numerical control (NC) control data and programmable logic control (PLC) control data. The work process is simulated on a platform that comprises a plurality of processor cores, wherein the work process is simulated in partial simulations that run in parallel on different processor cores.

A control device includes: a storage unit that stores a working program and a tool length correction amount; a control unit that causes a table and a spindle to relatively move on the basis of the working program and the tool length correction amount; a region setting unit that sets an interference checking region including a tool held by the spindle on the basis of the tool length correction amount; and an interference determination unit that determines whether the interference checking region interferes or not with obstacles in surroundings of the tool in a case in which the tool and the table are caused to relatively move on the basis of the working program and the tool length correction amount.

The present invention relates to a method for parallelized simulation of the movement of a machine component in or near a work object, wherein: a planned trajectory of the machine component is divided into several trajectory portions; a simulation of at least a first trajectory portion and a second trajectory portion is performed at least partly in parallel yielding simulation results, wherein the simulation comprises determining incidents, preferably collisions, along the trajectory portions; at least the simulation results of the first trajectory portion and the second trajectory portion are merged yielding a merged simulation result; and the merged simulation result is outputted.

A numerical control system determines iteratively a group of position setpoint values for axes of a production machine based on presets. When no risk of a collision of one moved element with another element exists, the group of position setpoint values is stored in a buffer store. Another already stored group of position setpoint values is read from the buffer store which then controls the axes and moves the element along a path defined by the sequence of the groups of position setpoint values. This process continues for as long as no risk of a collision exists. If a risk of a collision exists, the numerical control system brings the axes to a standstill. Previously unknown real time events are considered only in the determination of the groups of position setpoint values not yet stored in the buffer store. The groups of already stored position setpoint values are not altered.

A numerical control apparatus 3 comprises: a pulse generation unit 34 that moves a plurality of machine elements of a machine tool 2 along a plurality of control axes on the basis of a movement pulse for the machine tool 2; an interference checking unit 36 that performs interference checking calculation for a plurality of interference-checking subject sets; and an interference checking assistance device 5 that assists the interference checking calculation. The interference checking assistance device 5 comprises: a first storage unit 51 that stores machine element-control axis linkage information; a second storage unit 52 that stores individual axis subordinate relationship information; and a checking subject set extraction unit 54a that, on the basis of the movement pulse, the machine element-control axis linkage information, and the individual axis subordinate relationship information, extracts one or more checking subject sets from among all combinations of the machine elements.

A topology database generates topology data of a plurality of parts. The topology database acquires processing information including a tool name of a use tool and a processing order from a bending processing program of each part, and stores the processing information in association with the topology data. A processing information acquisition unit searches for a similar part with the same topology data as topology data of a processing target part, and acquires the processing information of the similar part. A tool determination unit calculates a range of a tool length which is able to bend each bending line using a tool with a tool name included in the processing information and which does not interfere with the part, and determines the tool with the tool name and a tool length within a range of the tool length as the use tool.

A machine tool is provided with a main shaft configured to have a tool fitted to a distal end portion thereof, a tool magazine for holding a plurality of tools, a tool exchanging arm for exchanging tools between the tool magazine and the rotary main shaft, and a table for attaching a workpiece, wherein the machine tool machines the workpiece by causing the main shaft and the table to move relative to one another in accordance with a machining program, and wherein the machine tool: is provided with an image capturing device for capturing an image of the tool fitted to a tool holder, and an interference checking device which uses the machining program, and shape data relating to the workpiece, the tool, and the machine tool to simulate machining before machining is carried out, to check for the presence or absence of interference between at least the tool and the workpiece; and acquires the shape data relating to the tool from the interference checking device, generates a two-dimensional tool model from the acquired shape data relating to the tool, compares the two-dimensional tool model with an image of the tool captured by the image capturing device, and determines that the tool is invalid if an amount of displacement between the two-dimensional tool model and the image data is equal to or greater than a prescribed threshold.