Abstract: A device for generating an underpressure comprises a plurality of ejectors and a receiving device therefor. The receiving device comprises at least one connection for a compressed air line, the connection protruding into a compressed air distribution system to which a compressed air channel of each ejector can be connected, and each ejector being provided with an underpressure channel that can be connected to the underpressure system of the ejector. The receiving device forms a holding frame and a quick-change system for the ejectors, and can be connected to the ejectors by means of control lines, and to a machine control system.

Abstract: The invention relates to a vacuum system, in particular a vacuum gripping system having at least one vacuum gripping apparatus for gripping workpieces and/or a vacuum component, in particular having a sensor for sensing states in the vacuum gripping system and/or one of the components and for generating state data, wherein the vacuum gripping apparatus and/or at least one of the components is equipped with an energy generation device for generating new electrical energy, which is not stored in the vacuum system, for operating a module consuming electrical energy.

Abstract: The invention concerns an underpressure surface gripping device with an extruded profile having a hollow chamber, a vacuum plate which is mounted parallel to the extruded profile, at least one flow through opening which connects the extruded profile to the vacuum plate, and with an ejector as a vacuum generator, wherein the ejector is inserted into the hollow chamber of the extruded profile and the suction opening of the ejector communicates with the flow through opening.

Abstract: The invention concerns a vacuum gripper for suctioning workpieces with an vacuum port, an elastic vacuum element and a vacuum element holder, wherein the vacuum element has a sealing lip on its side facing the workpiece, which delimits the vacuum chamber, and the vacuum chamber is flow-connected to the vacuum port, wherein the vacuum gripper has means that display the suction state, whose color changes.

Abstract: The invention concerns a vacuum gripper for suctioning workpieces with an vacuum port, an elastic vacuum element and a vacuum element holder, wherein the vacuum element has a sealing lip on its side facing the workpiece, which delimits the vacuum chamber, and the vacuum chamber is flow-connected to the vacuum port, wherein the vacuum gripper has means that display the suction state.

Abstract: A vacuum gripper for suctioning work pieces, having a vacuum connection, a flexible suction body and a suction body holder, where the side of the suction body facing the work piece has a sealing lip bounding a vacuum chamber, and the vacuum chamber is connected to the vacuum connection. The suction body has a contact surface abutting the work pieces with prevailing vacuum in the vacuum chamber. The contact surface is provided with elements, where the elements are have a rod or pin-shaped configuration and form a microstructure.

Abstract: The invention concerns an underpressure valve with a multi-part housing and a disc-like closing body which has at least one opening, and with an opening-free section disposed in alignment with the flow channel of the housing.

Abstract: A block suction apparatus for fixing plate-shaped work pieces on a fixing beam or fixing table using under-pressure has at least one support surface provided with a sealing plate having a sealing lip about its periphery. The sealing lip delimits a suction chamber and least one supporting element is provided within the suction chamber. At least one additional supporting element is also provided and is located in the direct vicinity of the sealing lip. Sagging of sections of a plate being lifted by the apparatus which project past the block suction apparatus is thereby reduced and the edge of the plate can therefore be processed with greater accuracy.

Abstract: Under pressure handling device comprising an under pressure generator, a device for controlling the under pressure and several grippers which engage on a work piece to be handled, wherein each gripper is provided with a device for controlling the under pressure, a sensor for detecting state variables on the gripper and an evaluation electronics to which the device for controlling the under pressure and the sensor are connected.

Abstract: Ejector with driver gas comprising at least one primary nozzle branch (12) with a driver nozzle (36) having a cross-sectional narrowing and an adjacent receiving nozzle (32), wherein a suction line (24) terminates in the narrowing, characterized by at least one connectable secondary nozzle branch (14) having a driver nozzle (38) with a cross-sectional narrowing and an adjacent receiving nozzle (34), wherein the narrowing of the secondary nozzle branch (14) is connected to a suction line (24) when the secondary nozzle branch (14) is opened, and with a closing instrument (20) connected upstream, with respect to the flow direction of the gas propellant, of the at least one secondary nozzle branch (14) to connect and disconnect the secondary nozzle branch (14) in dependence on the inlet pressure of the driver gas entering the ejector (20).

Abstract: Vacuum generator comprising an ejector nozzle which is connected to a compressed-air supply via a compressed-air line, and with a first valve for opening and closing the compressed-air line, wherein a second electrical valve is connected to the suction line of the ejector which is open in the currentless state to connect a pneumatic vacuum switch, circuited in parallel with the first valve, to the suction line.

Abstract: The invention relates to a vacuum grip system (10) for gripping at least one object (11a). The vacuum grip system (10) has a base unit (18) and at least two suction units (19, 20) affixed thereto, disposed at right angles to one another, and each having at least one suction gripper (21, 22). At least one of the suction units (19, 20) grasps the object or objects (11a) to be gripped from above, and at least one of the suction units (19,20) grasps the object or objects (11a) from one side. In order to provide The vacuum grip system (10) having maximum flexibility, it is proposed to affix the suction units (19, 20) to the base unit (18) such that, in order to grip the object (11a), the distance between the upper suction unit (19) and the lateral suction unit (20) may be varied. It is further proposed that the vacuum grip system (10) have a mechanical undergripper (25) upon which the gripped object (11a) may be laid.

Abstract: A block suction apparatus for fixing plate-shaped work pieces on a fixing beam or fixing table using under-pressure has at least one support surface provided with a sealing plate having a sealing lip about its periphery. The sealing lip delimits a suction chamber and least one supporting element is provided within the suction chamber. At least one additional supporting element is also provided and is located in the direct vicinity of the sealing lip. Sagging of sections of a plate being lifted by the apparatus which project past the block suction apparatus is thereby reduced and the edge of the plate can therefore be processed with greater accuracy.

Abstract: The invention concerns an underpressure valve with a multi-part housing and a disc-like closing body which has at least one opening, and with an opening-free section disposed in alignment with the flow channel of the housing.

Abstract: A machine table for a processing machine for holding at least one workpiece to be processed or at least one work accessory includes at least one table element rotatably mounted and having at least two sides which can be brought into a working position by rotating the table element and on which the workpiece and/or work accessory can be held.

Abstract: A holding device for work pieces to be machined, with a fixture and a vacuum holding block which can be set on the fixture, where an automatic or remotely-controllable mechanical locking device, for holding the vacuum holding block in position on the fixture is provided.

Abstract: Under pressure handling device comprising an under pressure generator, a means for controlling the under pressure and several grippers which engage on a work piece to be handled, wherein each gripper is provided with a means for controlling the under pressure, a sensor for detecting state variables on said gripper and an evaluation electronics to which the means for controlling the under pressure and the sensor are connected.

Abstract: The present invention relates to a gripper system which can be secured to a hand of a robot and has at least two mutually independent gripper elements; each gripper element is provided with at least one force sensor for ascertaining a force in a predetermined direction. With this gripper system, it is possible to grasp components more reliably.

Abstract: Vacuum generator comprising an ejector nozzle which is connected to a compressed-air supply via a compressed-air line, and with a first valve for opening and closing the compressed-air line, wherein a second electrical valve is connected to the suction line of the ejector which is open in the currentless state to connect a pneumatic vacuum switch, circuited in parallel with the first valve, to the suction line.

Abstract: The invention pertains to a device for fixing workpieces and contains at least one clamping beam and a suction block that lies on the clamping beam. The suction block is mounted on a sled that can be displaced in the longitudinal direction of the clamping beam. In addition, the suction block can be lifted off the surface of the clamping beam.