Abstract: The invention relates to a method for measuring the electrode force on welding tongs. The welding tongs have a first electrode arm with a first electrode and a second electrode arm with a second electrode, said second electrode arm lying opposite the first electrode arm. At least one workpiece is clamped between the electrodes during the welding process. The aim of the invention is to provide a method for measuring the electrode force, said method providing an improved signal quality. The method has the following steps: a) measuring a first force acting on the first electrode, b) measuring a second force acting on the second electrode, and c) adding the measured first force and the measured second force, wherein an electrode force signal transmitted from the welding point to the electrodes is amplified, and an interference force signal introduced into the at least one workpiece from the outside and transmitted to the electrodes is eliminated.

Abstract: The invention relates to a method for measuring the electrode force on welding tongs. The welding tongs have a first electrode arm with a first electrode and a second electrode arm with a second electrode, said second electrode arm lying opposite the first electrode arm. At least one workpiece is clamped between the electrodes during the welding process. The aim of the invention is to provide a method for measuring the electrode force, said method providing an improved signal quality. The method has the following steps: a) measuring a first force acting on the first electrode, b) measuring a second force acting on the second electrode, and c) adding the measured first force and the measured second force, wherein an electrode force signal transmitted from the welding point to the electrodes is amplified, and an interference force signal introduced into the at least one workpiece from the outside and transmitted to the electrodes is eliminated.

Abstract: A system for grinding solid workpieces includes a grinding wheel, a bearing for rotatable mounting of the grinding wheel about an axis of rotation, and a grinding wheel drive for rotating the grinding wheel. The system allows the production of freely-definable surfaces on the face of the rigid workpiece that comes into contact with the grinding wheel. The bearing is fastened to a pivotable and displaceable bearing carrier. The bearing plane is pivotable in any desired direction with respect to an initial plane and is displaceable in a direction perpendicular to the initial plane. Actuators are coupled to the bearing carrier to pivot and displace the bearing carrier. A digital control unit controls and synchronizes the actuators such that the surface of the grinding wheel creates a freely-definable face about a positionally fixed reference point which is at a radial distance from the center point of the grinding wheel.

Abstract: A system for grinding workpieces includes a grinding wheel, a first support for rotatably supporting the grinding wheel about a first rotational axis, and a grinding wheel drive for rotating the grinding wheel. The first support can be rotated about a second rotational axis using a support rotating device, the first rotational axis being inclined relative to the second rotational axis such that the grinding wheel lies diagonally against the surface of the workpiece and grinds a substantially conical surface on the workpiece while rotating about the second rotational axis when the workpiece contacts the grinding wheel surface at a distance from the second rotational axis. A position adjusting device may move the first support along the second rotational axis. The angle of inclination between the first rotational axis and the second rotational axis may be adjusted using an inclination adjusting device.

Abstract: A system for grinding solid workpieces includes a grinding wheel, a bearing for rotatable mounting of the grinding wheel about an axis of rotation, and a grinding wheel drive for rotating the grinding wheel. The system allows the production of freely-definable surfaces on the face of the rigid workpiece that comes into contact with the grinding wheel. The bearing is fastened to a pivotable and displaceable bearing carrier. The bearing plane is pivotable in any desired direction with respect to an initial plane and is displaceable in a direction perpendicular to the initial plane. Actuators are coupled to the bearing carrier to pivot and displace the bearing carrier. A digital control unit controls and synchronizes the actuators such that the surface of the grinding wheel creates a freely-definable face about a positionally fixed reference point which is at a radial distance from the center point of the grinding wheel.

Abstract: A system for grinding workpieces includes a grinding wheel, a first support for rotatably supporting the grinding wheel about a first rotational axis, and a grinding wheel drive for rotating the grinding wheel. The first support can be rotated about a second rotational axis using a support rotating device, the first rotational axis being inclined relative to the second rotational axis such that the grinding wheel lies diagonally against the surface of the workpiece and grinds a substantially conical surface on the workpiece while rotating about the second rotational axis when the workpiece contacts the grinding wheel surface at a distance from the second rotational axis. A position adjusting device may move the first support along the second rotational axis. The angle of inclination between the first rotational axis and the second rotational axis may be adjusted using an inclination adjusting device.

Abstract: An electric motor is provided having a rotor and a stator and in which the stator has poles which are surrounded by turns of a coil. Each turn is of planar design and the lower faces of subsequent turns rest on the upper faces of the respectively preceding turns. The system provides a simple, robust and efficient electric motor.

Abstract: A geared motor has a rotor, a stator which surrounds the rotor, and a gear mechanism with gear wheels. According to the described system, the gear wheels of the gear mechanism are arranged at least partially within the rotor. The geared motor may be provided with a switched reluctance motor as the electric drive, such that it can be used in an optimum manner for driving electric vehicles.

Abstract: A micro gas turbine has a compressor and a turbine, the rotors of which are arranged on a common driveshaft. The aim of the described system is to provide a lightweight and inexpensive micro gas turbine. This is achieved in that the driveshaft is mounted using at least two rolling bearings, one of which is arranged in the vicinity of the compressor rotor and one of which is arranged in the vicinity of the turbine rotor. The drive shaft is designed in a hollow manner, the inner hollow space of the driveshaft being filled with an evaporable coolant.

Abstract: A welding gun has two projecting electrode arms that are interconnected and able to move relative to each other and whose free ends each hold one welding electrode. The welding gun also has an electrode drive that moves the electrode arms from a closed position, in which the welding electrodes are located close together, to an open position. The welding gun projecting electrode arms have a movement sequence that optimizes welding precision. The electrode arms are attached to a linear guide so that they are able to be displaced linearily relative to each other.