Abstract: A processing tool used to transfer a component, in particular a joining element, from a pick-up position to a processing position. For process-reliable guidance, a guide element held in a hold-down-device is arranged, through which the component is pressed during operation and which exerts an elastic holding force. The guide element has a sleeve, in particular a metallic sleeve, which has a guide structure made of an elastomer. The guide structure is formed in particular by an elastomer ring or by several axial guide strips.

Abstract: A method for producing an assembly unit includes providing the assembly unit with an assembly part and at least one welding element serving for the thermal joining of the assembly part to a basic construction. The welding element is fixed in a through opening of the assembly part with at least one form-locking connection acting in the direction of the center longitudinal axis of the through opening and having a first end face, a second end face facing away from the first, and a peripheral surface that interconnects the end faces. The welding element has two side faces running parallel to each other and pointing away from each other, a profile that ensures the at least one form-locking connection and two transverse surfaces which connect the side faces one to the other.

Abstract: An assembly unit is produced according to the following method steps: an assembly part is provided which does not yet have a through bore. A disc-shaped welding element blank with a first end side, a second end side and a peripheral surface is stamped out of a sheet metal blank by a punch and a hole die so that the peripheral surface has a cylindrical longitudinal portion extending away from the first end side, and an adjoining cone portion which tapers towards the second end side and forms with this a cutting edge. The welding element blank is stamped with the cutting edge at the front into the assembly part to thereby form the through bore.

Abstract: In order to reliably ensure a press-in connection between joining elements, in particular a press-in nut and a pre-punched component, a press-in device contains a die which has a die ring and a die mandrel. The die mandrel is mounted counter to a spring force in the manner of a pilot pin. In addition, the die ring is also mounted counter to a spring force such that a two-stage press-in operation is carried out. Preferably, during a first press-in stage an anti-rotation lock is formed between the press-in nut and the component and in a second press-in stage an axial pull-out prevention measure is formed. To this end, the die mandrel deforms a nut flange.

Abstract: A method for producing an assembly unit includes providing the assembly unit with an assembly part and at least one welding element serving for the thermal joining of the assembly part to a basic construction. The welding element is fixed in a through opening of the assembly part with at least one form-locking connection acting in the direction of the center longitudinal axis of the through opening and having a first end face, a second end face facing away from the first, and a peripheral surface that interconnects the end faces. The welding element has two side faces running parallel to each other and pointing away from each other, a profile that ensures the at least one form-locking connection and two transverse surfaces which connect the side faces one to the other.

Abstract: An assembly unit is produced according to the following method steps: an assembly part is provided which does not yet have a through bore. A disc-shaped welding element blank with a first end side, a second end side and a peripheral surface is stamped out of a sheet metal blank by a punch and a hole die so that the peripheral surface has a cylindrical longitudinal portion extending away from the first end side, and an adjoining cone portion which tapers towards the second end side and forms with this a cutting edge. The welding element blank is stamped with the cutting edge at the front into the assembly part to thereby form the through bore.

Abstract: In order to reliably ensure a press-in connection between joining elements, in particular a press-in nut and a pre-punched component, a press-in device contains a die which has a die ring and a die mandrel. The die mandrel is mounted counter to a spring force in the manner of a pilot pin. In addition, the die ring is also mounted counter to a spring force such that a two-stage press-in operation is carried out. Preferably, during a first press-in stage an anti-rotation lock is formed between the press-in nut and the component and in a second press-in stage an axial pull-out prevention measure is formed. To this end, the die mandrel deforms a nut flange.

Abstract: In order to ensure that the process of setting a blind rivet is reliable, during the setting operation a rivet mandrel is gripped by gripping jaws of a tension head and is pulled in the axial direction for deforming a rivet sleeve. The tension head and the rivet mandrel, in this case, are matched to one another in such a manner that the gripping jaws initially slide along a gripping portion along the rivet mandrel in their closed position until they reach a predetermined tension position, which is defined in particular by a stop, from which the necessary tensile force for the deforming of the rivet sleeve is first transferred onto the rivet mandrel.

Abstract: In order to ensure reliable feeding in particular of a clinch nut (M) from a ready position (16) into a processing position, the processing tool designed as a press-in tool (2) has a guide element (14), through which the clinch nut (M) is pressed into the processing position by means of a punch (8) against an elastic holding force exerted by the guide element (14). The guide element (14) is designed in particular as a slotted bush and is arranged as an insert in a hold-down (12).

Abstract: The invention concerns an industrial robot (4) comprising a machining tool (2) attached to one hand (3) of the robot, designed to perform a hydraulic-driven movement relative to the hand (3) and connected therefor to a hydraulic unit (10). The hydraulic unit (10) is placed directly on a mobile part of the robot, in particular directly on the robot hand (3). Therefore there is no more need for hydraulic supply lines along the arm of the robot. Further, when the robot hand (3) changes tool, no separation of hydraulic lines is required. The machining tool (2) is in particular a device for placing blind rivets, thereby enabling an entirely automated process for placing blind rivets.

Abstract: A compensating unit for a tool unit for inserting an element into a workpiece, in particular a setting unit for inserting a joining element into a workpiece. The tool unit is fastened to a mounting and being mounted, oriented in an axial direction, in such a way that, during the machining operation, a compensating movement in a plane oriented at least approximately perpendicular to the axial direction is made possible.

Abstract: In order to ensure reliable feeding in particular of a clinch nut (M) from a ready position (16) into a processing position, the processing tool designed as a press-in tool (2) has a guide element (14), through which the clinch nut (M) is pressed into the processing position by means of a punch (8) against an elastic holding force exerted by the guide element (14). The guide element (14) is designed in particular as a slotted bush and is arranged as an insert in a hold-down (12).

Abstract: A feeding unit for feeding an element to a treatment unit of a machine tool, in particular for feeding a rivet to a riveting unit, has a gripping element provided for the fastening element for the automatic take-up of the fastening element from a supply unit and automatic feed to the treatment unit. The gripping element is disposed on a rotary element rotatable about an axial direction, and at least one electromagnet is provided which is configured in such a way that a torque acting on the rotary element is generated by a magnetic force.

Abstract: The invention concerns an industrial robot (4) comprising a machining tool (2) attached to one hand (3) of the robot, designed to perform a hydraulic-driven movement relative to the hand (3) and connected therefor to a hydraulic unit (10). The hydraulic unit (10) is placed directly on a mobile part of the robot, in particular directly on the robot hand (3). Therefore there is no more need for hydraulic supply lines along the arm of the robot. Further, when the robot hand (3) changes tool, no separation of hydraulic lines is required. The machining tool (2) is in particular a device for placing blind rivets, thereby enabling an entirely automated process for placing blind rivets.

Abstract: A compensating unit for a tool unit for inserting an element into a workpiece, in particular a setting unit for inserting a joining element into a workpiece. The tool unit is fastened to a mounting and being mounted, oriented in an axial direction, in such a way that, during the machining operation, a compensating movement in a plane oriented at least approximately perpendicular to the axial direction is made possible.

Abstract: A feeding unit for feeding an element to a treatment unit of a machine tool, in particular for feeding a rivet to a riveting unit, has a gripping element provided for the fastening element for the automatic take-up of the fastening element from a supply unit and automatic feed to the treatment unit. The gripping element is disposed on a rotary element rotatable about an axial direction, and at least one electromagnet is provided which is configured in such a way that a torque acting on the rotary element is generated by a magnetic force.

Abstract: An hydraulic unit provides a pressurized hydraulic fluid at an outlet. The unit has an electric motor and a pump operated by the motor for generating pressure. A reservoir having a variable compensation volume stores the hydraulic fluid primed by the pump in a gas-free manner. The hydraulic fluid is especially pressurized in order to safely and reliably guarantee that the hydraulic fluid is gas-free. The inventive design allows for the safe and operationally reliable use of the hydraulic unit even at high acceleration values. The hydraulic unit is especially adapted for use in an industrial robot.

Abstract: To form a pressed connection between a component (6) and a press-in nut (2), the latter has a deformation region (16) which is pressed into a wall (20) of a hole (4) in the component (6) by a suitably formed die (22) during the press-in operation. As a result, a form fit is formed which is effective in two directions and provides for a reliable hold of the press-in nut. The press-in nut (2) is suitable in particular for fastening in thick components (6) and is largely independent of the component thickness (D).

Abstract: The blind rivet assembly has a sleeve with a swage head and a sleeve shaft. A mandrel having a head and a shaft is guided through the sleeve. The mandrel shaft is rigid and the sleeve shaft is provided with a deformation region that extends in the longitudinal direction of the sleeve. The deformation region is designed such that a closing head is formed at different longitudinal positions of the deformation area by sleeve folding. The deformation region has continuously decreasing mechanical strength properties in the direction towards the swage head. The blind rivet enables to easily join structural parts of different thicknesses and guarantees at the same time to tear off the mandrel shaft with the swage head in a planar manner.

Abstract: To produce a blind-rivet connection in which the rivet shaft (7) breaks off flush with the set-head (4) of the blind rivet (1), regardless of the total thickness (G) of the components (21) to be riveted, a blind rivet (1) is proposed whose rivet shaft (7) is provided with a plurality of break-off grooves (13) arranged axially in series. The tension segment (12) of the rivet shaft (7) is always separated at the break-off groove (13a) that is flush with the set-head end (11) after the rivet shank (2) has buckled to form a closing head (27).