Abstract: A motor or work machine having a housing part, a stator element, a rotor element with a monitoring device for monitoring a state parameter of the rotor. The monitoring device includes a sensor unit contains a coupling element and a conductor structure, SAW sensor element connecting the aforementioned elements, and a query unit. The query unit preferably operates according to the S-FSCW principle. The unit has a signal generator for generating query signals and a coupling structure. The coupling structure is positioned along an air gap formed between the rotor element and stator element or a section of the housing covered by the coupling element when the rotor element is rotated. The positioning is such that a coupling is enabled between the coupling structure and the coupling element for signal transmission over the air gap. The query unit has an evaluation circuit for evaluating received response signals.

Abstract: A method for controlling and/or monitoring a workpiece machining process where a tool having a working surface is brought into contact with a surface of a workpiece to be machined via a feed movement. In the machining process, the tool and/or workpiece rotate about a tool axis and/or workpiece axis. The feed movement occurs while the tool and/or workpiece are rotating and an auxiliary medium is introduced into a region between a working surface of the tool and a surface of the workpiece to be machined. Bending moments and/or forces acting transversely to the tool axis or workpiece axis and/or torques occurring during rotation of the tool about the tool axis and/or during rotation of the workpiece about the workpiece axis are captured in a time-resolved manner. A status of the approach process is inferred from the values and/or time profiles of the captured bending moments, forces and/or torques.

Abstract: A method for monitoring machining processes in workpiece processing including steps of planning a processing process on the basis of a predetermined final shape of a workpiece to be achieved in the processing process and of quality features of the final shape of the workpiece and simulating the planned processing process in a computer-aided simulation. Target values of parameters of the simulated processing process occurring during the simulated processing process are detected and stored in the context of the computer-aided simulation. During the real processing process carried out according to the planned and simulated processing process, the parameters considered in the simulation are monitored and the actual values thereof are detected. By comparing actual values of parameters detected during the real processing process with the target values of these parameters detected during the simulation, the quality of the processing process and/or of the processed workpiece is assessed.

Abstract: Method for monitoring and/or predicting machining processes and/or machining outcomes in mechanical workpiece machining carried out by a workpiece processing machine operable by specifiable operating parameters and having at least one machining tool. The monitoring and/or predicting occurs via a computer program product evaluation algorithm executed on a computer on the basis of training data sets. The training data sets include, as training data, adjustment data relating to adjustment of operating parameters of the workpiece processing machine for carrying out a machining process to be monitored and/or predicted. The training data sets further include outcome data of workpieces finished in a machining process to be monitored and/or predicted, and state data of the processing machine, determined by sensor, during a machining process to be monitored and/or predicted. In use, capture of outcome data by prediction made on the basis of machine-learned knowledge is avoided or reduced.

Abstract: A spindle nose for a machine tool spindle. The spindle nose has a longitudinal axis and a receiving end at which a conical receiving area opens. The receiving area tapers conically away from the receiving end in the direction of the longitudinal axis for receiving a tool shaft cone. A circumferential wall surrounds the receiving area and forms a circumferential contact edge. The contact edge has flat contact surfaces on which contact surfaces of the tool shaft cone rest when the tool is clamped in the tool spindle. The spindle nose defines blind receiving bores leading perpendicularly to the flat contact surfaces and which end below the flat contact surfaces. The contact edge is divided into at least four segments with the same angle. At least one receiving bore is formed in each of the segments. A sensor is arranged in each receiving bore.

Abstract: A spindle nose for a machine tool spindle. The spindle nose has a longitudinal axis and a receiving end at which a conical receiving area opens. The receiving area tapers conically away from the receiving end in the direction of the longitudinal axis for receiving a tool shaft cone. A circumferential wall surrounds the receiving area and forms a circumferential contact edge. The contact edge has flat contact surfaces on which contact surfaces of the tool shaft cone rest when the tool is clamped in the tool spindle. The spindle nose defines blind receiving bores leading perpendicularly to the flat contact surfaces and which end below the flat contact surfaces. The contact edge is divided into at least four segments with the same angle. At least one receiving bore is formed in each of the segments. A sensor is arranged in each receiving bore.

Abstract: A method for setting or monitoring operating parameters of a workpiece processing machine having a tool holder and means for moving a workpiece and the holder relative to one another along a first axis. During milling of the holder fitted with a workpiece and during application of the tool to a workpiece, values for at least one measured variable are registered and recorded. The variables include an axial force acting in a direction parallel to the first axis, a torque relative to the first axis or to an axis oriented parallel to the first axis, and bending torques or bending torque components according to direction and amount. The values are used to set the operating parameters with respect to an extended service life of the tool in conjunction with a processing time falling below a maximum machining time, monitoring tool wear or a machine error.

Abstract: A method for setting or monitoring operating parameters of a workpiece processing machine having a tool holder and means for moving a workpiece and the holder relative to one another along a first axis. During milling of the holder fitted with a workpiece and during application of the tool to a workpiece, values for at least one measured variable are registered and recorded. The variables include an axial force acting in a direction parallel to the first axis, a torque relative to the first axis or to an axis oriented parallel to the first axis, and bending torques or bending torque components according to direction and amount. The values are used to set the operating parameters with respect to an extended service life of the tool in conjunction with a processing time falling below a maximum machining time, monitoring tool wear or a machine error.

Abstract: The invention refers to a pressure sensor comprising a membrane which separates a measuring device receiving the deformation of the membrane caused by pressure from the pressurised pressure space. The pressure sensor is formed by a basic body. The pressure sensor is set in a wall defining the pressure space. The membrane is orientated essentially parallel to the surface normal line of this opening.

Abstract: The invention relates to a roller bearing comprising curved running paths, in addition to roller bodies and strain gauge sensors which are arranged between said running paths, said sensors being located in a groove on the outer diameter of the outer ring and/or on the inner diameter of the inner ring. The length of two adjacent strip conductor sections of the strain gauge sensor varies in such a way as to measure the angular position of the roller bodies between the strip conductors.

Abstract: The invention refers to a pressure sensor comprising a membrane which separates a measuring device receiving the deformation of the membrane caused by pressure from the pressurised pressure space. The pressure sensor is formed by a basic body. The pressure sensor is set in a wall defining the pressure space. The membrane is orientated essentially parallel to the surface normal line of this opening.

Abstract: The invention relates to a roller bearing comprising curved running paths, in addition to roller bodies and strain gauge sensors which are arranged between said running paths, said sensors being located in a groove on the outer diameter of the outer ring and/or on the inner diameter of the inner ring. The length of two adjacent strip conductor sections of the strain gauge sensor varies in such a way as to measure the angular position of the roller bodies between the strip conductors.