A method for moving a rotor onto a segment, a linear drive, a production machine, a machine tool, and a packaging machine comprising such a linear drive, wherein the actual speed of the rotor is ascertained using a sensor paired with the segment when the rotor is moved onto the segment, where the actual speed is selected by a control unit as the first target speed for the rotor, and after the target speed has been determined for the rotor, the regulation of the actual speed is activated for the rotor, and where the actual speed of the rotor is then regulated in accordance with a conventional rule, wherein a rule variable is the ascertained actual speed and/or the position of the rotor such that jerking or an undesired acceleration is prevented during transition of the rotor onto the segment.

A method of recutting the surface of a wheel includes mounting the wheel on a rotatable mount, moving a probe across the surface of the wheel between an outer radial position and an inner radial position to obtain a radial surface profile and rotating the wheel about its axis on the rotatable mount. During rotation of the wheel, the position of a cutting tool with respect to the surface of the wheel is controlled to recut the surface of the wheel in accordance with the cutting profile. The wheel is tagged with a unique wheel identifier, and the unique wheel identifier is recorded into a database in association with an indication of an amount of material which has been removed from the surface of the wheel.

A method of recutting the surface of a wheel includes mounting the wheel on a rotatable mount, moving a probe across the surface of the wheel between an outer radial position and an inner radial position to obtain a radial surface profile and rotating the wheel about its axis on the rotatable mount. During rotation of the wheel, the position of a cutting tool with respect to the surface of the wheel is controlled to recut the surface of the wheel in accordance with the cutting profile. The wheel is tagged with a unique wheel identifier, and the unique wheel identifier is recorded into a database in association with an indication of an amount of material which has been removed from the surface of the wheel.

A workpiece simulation part estimates the amount of movement of the workpiece from drive information and estimates the current position of the workpiece by adding the amount of movement to the previous position of the workpiece, the drive information being generated for, among at least one actuator, an actuator that is assumed to constrain the workpiece under the constraint conditions. A sensor simulation part uses the current position of the workpiece to generate sensor simulation information. An input/output switching part transmits the drive information to the workpiece simulation part and transmits the sensor simulation information as alternate information of the sensor information to the control-program execution part.

A method for open-loop and/or closed-loop control of a linear drive, a linear drive; and a system, wherein the linear drive includes at least one segment, at least one rotor, at least one machine station and a control device, where the at least one rotor is moved in a direction via the at least one segment, at least a portion of at least one segment is within a region accessible by the machine station, the movement of the at least one rotor is controlled in an open-loop and/or closed-loop manner by the control device and/or control unit, the controlling occurs in accordance with a movement pattern for the rotor, and where the movement of a particular rotor in the region accessible by the associated machine station is specified by a movement profile in accordance with the mode of operation of the associated machine station.

A method for open-loop and/or closed-loop control of a linear drive, a linear drive; and a system, wherein the linear drive includes at least one segment, at least one rotor, at least one machine station and a control device, where the at least one rotor is moved in a direction via the at least one segment, at least a portion of at least one segment is within a region accessible by the machine station, the movement of the at least one rotor is controlled in an open-loop and/or closed-loop manner by the control device and/or control unit, the controlling occurs in accordance with a movement pattern for the rotor, and where the movement of a particular rotor in the region accessible by the associated machine station is specified by a movement profile in accordance with the mode of operation of the associated machine station.

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.

Provided is a numerical control device capable of positioning a tool tip position in three-dimensional space with high accuracy. A numerical control device (1) includes a position compensator (5) and an error data storage (10). The error data storage (10) stores therein error data relating to angular errors (Eax, Eay, Eaz) around an X-axis, angular errors (Ebx, Eby, Ebz) around a Y-axis, and angular errors (Ecx, Ecy, Ecz) around a Z-axis in the X-, Y-, and Z-axes. The position compensator (5) calculates, based on commanded positions (Ix, Iy, Iz), the error data, and tool length data for a tool to be used, modification amounts (Mx, My, Mz) that vary in accordance with the tool length, modifies compensation amounts (Cx, Cy, Cz) for the commanded positions (Ix, Iy, Iz), and compensates for the commanded positions (Ix, Iy, Iz) with the modified compensation amounts.

Provided is a numerical control device capable of positioning a tool tip position in three-dimensional space with high accuracy. A numerical control device (1) includes a position compensator (5) and an error data storage (10). The error data storage (10) stores therein error data relating to angular errors (Eax, Eay, Eaz) around an X-axis, angular errors (Ebx, Eby, Ebz) around a Y-axis, and angular errors (Ecx, Ecy, Ecz) around a Z-axis in the X-, Y-, and Z-axes. The position compensator (5) calculates, based on commanded positions (Ix, Iy, Iz), the error data, and tool length data for a tool to be used, modification amounts (Mx, My, Mz) that vary in accordance with the tool length, modifies compensation amounts (Cx, Cy, Cz) for the commanded positions (Ix, Iy, Iz), and compensates for the commanded positions (Ix, Iy, Iz) with the modified compensation amounts.

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).