Abstract: The invention concerns a device for securing workpieces with at least one clamping bar and a block suction apparatus disposed on the clamping bar. The block suction apparatus is secured to a slide which can be transported in the longitudinal direction of the clamping bar. The block suction apparatus can be lifted from the surface of the clamping bar.

Abstract: An elastic vacuum body of a vacuum gripper 10 for suctioning workpieces comprises a sealing lip 22 defining a vacuum chamber 26 at a side of the vacuum body 20 facing the workpiece. The vacuum chamber 26 is flow-connected to a vacuum supply and ribs 36, 38, 40 project into the vacuum chamber 26. The sealing lip 22 comprises at least one groove 28 on its surface 30 facing the vacuum chamber 26. The vacuum body can hold oily objects without slippage. Sheet metal is securely held without distorted bending.

Abstract: Vacuum manipulation apparatus includes a lifting hose coupled to a vacuum-generating unit. The lifting hose incorporates a suction gripping device having a suction end adapted for placement against an object to be grasped and lifted. The device includes a flow opening plate adapted to be opened for preventing an abrupt rise of the gripping device upon unintentional release of the grasped object against gravitational forces. In a non-grasping mode, a retractable, spring-loaded push rod extends from the suction end of the device. The push rod retracts whenever the suction gripping device engages a grasped object. A blocking arm attached to the push rod engages the flow opening plate to hold the plate normally closed during the grasping mode. When suction is broken between the grasped object and the suction end of the gripping device, the push rod extends from the device, however, opening the flow opening plate to admit airflow.

Abstract: A vacuum holding apparatus with at least one base and a suction unit supported by the base, on which the workpiece to be held can be placed and is vacuum-held by the suction unit, wherein the suction unit has a first gripping surface on the side facing the workpiece, and a second gripping surface on the side facing the base wherein the suction unit is provided with at least one mechanical holding mechanism for attachment to the base.

Abstract: The invention concerns a vacuum handling device comprising a lifting hose (4), which can be connected to a vacuum generating device (12), and a suction gripping device (6) which can be disposed on an object to be handled and with which the object can be suctioned or lifted through retraction of the lifting hose (4), wherein the suction gripping device (6) is provided with a handle (18) for an operator for manipulating the device during proper use, and wherein the suction performance of the vacuum generating device (12) and the associated vacuum prevailing in the lifting hose (4) can be set in a remotely controlled fashion. The handling device is improved by providing an adjustment device (26) to control the rotational speed of the vacuum generating device (12) drive motor (14), the adjustment device (26) being disposed on the suction gripping device (6) for manual operation by the device user during proper use.

Abstract: The invention relates to a vacuum tightening system comprising a supporting base and a modular suction device for tightening a work piece. According to the invention, the modular suction device and the work piece can be tightened by means of a vacuum circuit in which the vacuum pressure is increased for tightening the work piece.

Abstract: The present invention relates to a vacuum manipulation device having a lifter hose, which can be connected to a vacuum-generating device, and a suction gripper device, which can be placed on an object to be manipulated and with which the object can be drawn up by suction and lifted by contracting the lifter hose, the suction gripper device has a prestressed regulating member on its suction side, which is actuated by placing the suction gripper device on the object and which thereby unblocks a flow cross-section, so that the object can be drawn up by suction. To prevent the abrupt upward acceleration of the suction gripper device, the regulating member can be arrested in its actuated position, so that in case of the release of a drawn-up object from the suction side of the suction gripper device the flow cross-section is not again blocked, and in this way the abrupt upward acceleration of the suction gripper device is prevented.

Abstract: The present invention relates to an ejector for generating negative pressure having a pressure connection discharging into a propellant nozzle, and having a suction connection which discharges via a suction conduit into a receiver nozzle. The propellant nozzle and the receiver nozzle are provided in a suction valve with a first blocking piston for the propellant nozzle. A work conduit communicating with the pressure connection and a control conduit communicating with the pressure connection are provided and a blow conduit discharging via a blow valve into the suction connection communicates with a second blocking piston, and the piston position of the second blocking piston of the blow valve being triggerable via the control conduit.

Abstract: An ejector for generating a vacuum, with a housing, a propellant nozzle having a narrowed part, a diffuser section, a suction connector terminating in the narrowed part, as well as an exhaust air conduit for the pressure gas and the exhausted air, a simple construction is achieved in that the housing of the ejector is designed as a sectional support for at least two propellant nozzles.

Abstract: In a vacuum clamping system with a support base and a block suction device for clamping a workpiece, the block suction device and the workpiece can be clamped by means of a single vacuum circuit. The block suction device can be placed in arbitrary positions on the support base.

Abstract: The present invention relates to a vacuum manipulating device with a suction device, which can be connected via a lifting hose with a device generating a vacuum and which, for creating a suction on an object to be lifted or transported, can be placed on the latter. The suction device includes a control valve device with an opening which can be unblocked and blocked for controlling the vacuum prevailing in the interior of the suction device. The control valve device has a control element, which unblocks or blocks the opening and can be pivoted or rotated in the one or the other direction which, in the non-actuated state, takes up a settable neutral position with a degree of opening corresponding to the setting. In order to be able to set a defined poise, the device in accordance with the present invention is embodied such, that the control element is prestressed against a force-guided movable component in such a way that in the non-actuated state it rests against the latter with a detent area.

Abstract: A vacuum manipulation device with a lifter hose, which can be connected to a vacuum-generating device, and with a suction gripper device, which can be placed on an object to be manipulated, by means of which the object can be drawn-up and, by contracting the lifter hose, can be lifted. In order to prevent the suction gripper device from snapping upward in case of an unintentional release of a drawn-up object, the manipulation device features a weight-actuable regulating element which, under the effect of the weight of an object drawn by suction against the suction side of the suction gripper device, blocks a flow cross section into the interior of the lifter hose, and unblocks it in the unoccupied state of the suction gripper device.

Abstract: The present invention relates to a vacuum handling apparatus, having a suction gripper device which can be connected by means of a lifting hose to a vacuum-creating device and can be placed upon an object, in order to suck up the object for lifting or conveyance. The apparatus has a control valve for controlling the vacuum prevailing in the interior of the suction gripper device and in the lifting hose, in order to lift or lower the suction gripper device with a sucked-up object or the empty suction gripper device, or to deposit a sucked-up object.

Abstract: A vacuum lift device comprising a lift tube which is able to contract and expand in an upward and downward direction, and a lift tube expansion control valve controlling the opening areas of the atmospheric openings of the lift tube. A hovering control valve controlling the flow area between the second atmospheric opening and the interior of the lift tube is provided. The lift tube expansion control valve is normally positioned at a position such that is completely covers the first atmospheric opening, and the second atmospheric opening is open to the outside space. At this time, the level of vacuum in the lift tube is adjusted by the hovering control valve so that an object to be lifted is maintained at a desired height.