Abstract: A pressing tool for plastically deforming a tubular workpiece, and particularly a fitting is described. The pressing tool comprises pressing jaws, a drive adapted to drive the pressing jaws in order to apply a force to the workpiece, a sensor system which is adapted to record a set of pressing data during a pressing process and a control which is adapted to control the drive based on the recorded set of pressing data. Also described are related methods, pressing jaws and workpieces.

Abstract: A pressing tool for pressing workpieces is described. The pressing tool comprises a hydraulic pump for conveying a hydraulic fluid, an electric motor for driving the hydraulic pump, a working cylinder which is hydraulically connected to an outlet of the hydraulic pump, a pressure-relief valve which is hydraulically connected to the outlet of the hydraulic pump and which opens at a certain predefined pressure Pv of the hydraulic fluid, an electronic control for controlling the electric motor and a sensor 60 which monitors the state of the pressure-relief valve and emits a signal which describes the state of the pressure-relief valve to the electronic control. Furthermore, a method of operating such a pressing tool is described.

Abstract: A pressing tool for plastically deforming a tubular workpiece, and particularly a fitting is described. The pressing tool comprises a pressing jaw receptacle for coupling a pressing jaw assembly to the pressing tool. The pressing tool further comprises a drive which is adapted to drive a coupled pressing jaw assembly in order to apply force to a workpiece, and a sensor system which is adapted to identify a pressing jaw assembly and to provide corresponding sensor data, wherein a control is adapted to control the drive based on the sensor data. Also described are related methods, pressing jaw assemblies, and workpieces.

Abstract: A pressing machine is described for plastically deforming a tubular workpiece, in particular a fitting. The pressing machine has a motor, and pressing jaws which are driven by the motor and can apply a force to the workpiece during operation. The pressing machine also has a power transmission unit coupled to the motor and the pressing jaws for transmitting power from the motor to the pressing jaws. The pressing machine also has at least one sensor unit for measuring at least one pressing parameter P and a controller which receives the currently measured value of the pressing parameter P from the sensor unit and determines therewith the pitch or slope of a press parameter curve K of the press parameter P. The controller terminates a pressing operation before reaching a maximum possible pressing force Pmax when the pitch or slope of the press parameter curve K of the press parameter P satisfies a shutdown criterion. Also described is a corresponding method for operating a pressing machine.

Abstract: A pressing tool, particularly a pipe pressing tool, for plastically deforming a tubular workpiece, particularly a fitting, is described. The pressing tool includes pressing jaws and a motor which is adapted to drive the pressing jaws in order to apply a force to the workpiece. Further, a method of operating such a pressing tool, and pressing jaws as well as a tubular workpiece are described.

Abstract: A pressing tool is described for plastically deforming a workpiece. The pressing tool comprises a piston pump driven by a motor that rotates in operating rotation direction RA and a pressure release valve and a coupling arrangement, which mechanically couples the motor to the pressure relief valve, so that the motor opens the pressure relief valve when operated in a loosening rotation direction RL opposite to the operating rotation direction RA. Also described is a corresponding method of operating a pressing tool.

Abstract: A pressing tool for plastically deforming a workpiece is described. The pressing tool includes a housing and an electric motor for actuating the pressing tool. The pressing tool also includes an instrument seat which is adapted to receive an interchangeable instrument head at the housing. The pressing tool also includes a mechanical safety element which is arranged in a manner that is movable from an open position, in which an instrument head may be inserted into the instrument seat, into a closed position, in which the instrument head is locked in the instrument seat. The pressing tool additionally includes a mechanical actuating element which may interact with the safety element in order to be able to cause the pressing tool to be enabled for a pressing process.

Abstract: A pressing tool is described for plastically deforming a workpiece. The pressing tool comprises a piston pump driven by a motor that rotates in operating rotation direction RA and a pressure release valve and a coupling arrangement, which mechanically couples the motor to the pressure relief valve, so that the motor opens the pressure relief valve when operated in a loosening rotation direction RL opposite to the operating rotation direction RA. Also described is a corresponding method of operating a pressing tool.

Abstract: A pressing tool for plastically deforming a tubular workpiece. The pressing tool comprises a drive, a reservoir for providing a hydraulic fluid, a coupling interface for coupling the pressing tool to a pressing jaw assembly, and a hydraulic pump valve apparatus. The hydraulic pump valve apparatus comprises a pressure cylinder, an operating cylinder, and a pressure-relief valve element which is adapted to open a fluidic passage from the operating cylinder to the reservoir when a predefined maximum pressing pressure is reached and keep it open until the operating piston has returned to a first position.

Abstract: A pressing tool for pressing workpieces is described. The pressing tool comprises a hydraulic pump for conveying a hydraulic fluid, an electric motor for driving the hydraulic pump, a working cylinder which is hydraulically connected to an outlet of the hydraulic pump, a pressure-relief valve which is hydraulically connected to the outlet of the hydraulic pump and which opens at a certain predefined pressure Pv of the hydraulic fluid, an electronic control for controlling the electric motor and a sensor 60 which monitors the state of the pressure-relief valve and emits a signal which describes the state of the pressure-relief valve to the electronic control. Furthermore, a method of operating such a pressing tool is described.

Abstract: A pressing tool, particularly a pipe pressing tool, for plastically deforming a tubular workpiece, particularly a fitting, is described. The pressing tool includes pressing jaws and a motor which is adapted to drive the pressing jaws in order to apply a force to the workpiece. Further, a method of operating such a pressing tool, and pressing jaws as well as a tubular workpiece are described.

Abstract: A pressing tool for plastically deforming a tubular workpiece, and particularly a fitting is described. The pressing tool comprises a pressing jaw receptacle for coupling a pressing jaw assembly to the pressing tool. The pressing tool further comprises a drive which is adapted to drive a coupled pressing jaw assembly in order to apply force to a workpiece, and a sensor system which is adapted to identify a pressing jaw assembly and to provide corresponding sensor data, wherein a control is adapted to control the drive based on the sensor data. Also described are related methods, pressing jaw assemblies, and workpieces.

Abstract: A pressing tool for plastically deforming a tubular workpiece, and particularly a fitting is described. The pressing tool comprises pressing jaws, a drive adapted to drive the pressing jaws in order to apply a force to the workpiece, a sensor system which is adapted to record a set of pressing data during a pressing process and a control which is adapted to control the drive based on the recorded set of pressing data. Also described are related methods, pressing jaws and workpieces.

Abstract: A pressing machine is described comprising a drive with an output shaft for generating a rotational movement. The machine also comprises a transmission which is connected on the input side to the output shaft of the drive. The transmission is connected on the output side with a swash plate. The machine also comprises a pin which is in contact with the swash plate, so that the pin during a rotational movement of the output shaft of the drive, performs a stroke movement.

Abstract: A hand-held pressing device is described. The pressing device can be used for crimping or cutting workpieces. The device has a housing and a tool holder for receiving a tool. A movably configured actuator is driven by an electric motor to actuate the tool. The device includes a planetary gear assembly for coupling an electric motor and the actuator.

Abstract: A pressing machine is described for plastically deforming a tubular workpiece, in particular a fitting. The pressing machine has a motor, and pressing jaws which are driven by the motor and can apply a force to the workpiece during operation. The pressing machine also has a power transmission unit coupled to the motor and the pressing jaws for transmitting power from the motor to the pressing jaws. The pressing machine also has at least one sensor unit for measuring at least one pressing parameter P and a controller which receives the currently measured value of the pressing parameter P from the sensor unit and determines therewith the pitch or slope of a press parameter curve K of the press parameter P. The controller terminates a pressing operation before reaching a maximum possible pressing force Pmax when the pitch or slope of the press parameter curve K of the press parameter P satisfies a shutdown criterion. Also described is a corresponding method for operating a pressing machine.