A riveting apparatus (1) is for the application and riveting a rivet (6) to a component (2, 4) of an article (1a, 1b) being processed in a work region (96) of the apparatus. The riveting apparatus includes a rivet insertion device (30) for the insertion of the rivet into the component and a riveting device (40) for the riveting of the rivet.

A tool for installing a blind fastener including a core bolt and a core nut is provided. The tool includes a driving member, a collet driven by the driving member for engaging the core bolt, and an external sleeve for holding the core nut and preventing the core nut from rotating during installation of the blind fastener. The external sleeve is movable between a first position in which the external sleeve is driven by the collet to rotate with the collet and a second position in which the external sleeve is stationary despite rotating action of the collet.

An apparatus for threading a tool unit onto an elongate structural element. The apparatus has a holding arrangement for holding it on a feed device, a tool unit to be threaded onto the elongate structural element. The tool unit has a tool axis and a vibration unit connected to the tool unit and configured to generate a periodic force in at least one first spatial direction that runs transversely with respect to the tool axis. First and second coupling components, held elastically on one another, are provided. The first coupling component is connected to the holding arrangement, the second coupling component is connected to the tool unit. The vibration unit is operated, during a feed movement of the holding arrangement for threading the tool unit onto the elongate structural element, to add an additional, periodically varying transverse component to a feed force acting on the tool unit.

An apparatus for threading a tool unit onto an elongate structural element. The apparatus has a holding arrangement for holding it on a feed device, a tool unit to be threaded onto the elongate structural element. The tool unit has a tool axis and a vibration unit connected to the tool unit and configured to generate a periodic force in at least one first spatial direction that runs transversely with respect to the tool axis. First and second coupling components, held elastically on one another, are provided. The first coupling component is connected to the holding arrangement, the second coupling component is connected to the tool unit. The vibration unit is operated, during a feed movement of the holding arrangement for threading the tool unit onto the elongate structural element, to add an additional, periodically varying transverse component to a feed force acting on the tool unit.

A two-piece, one-sided-installation fastener system may have an internally-threaded sleeve having a shank and a sleeve head. The fastener system may include an externally-threaded core bolt having a frangible driving provision and a core bolt head.

A two-piece, one-sided-installation fastener system may have an internally-threaded sleeve having a shank and a sleeve head. The fastener system may include an externally-threaded core bolt having a frangible driving provision and a core bolt head.

A rivet joining method, etc., suitable for providing rivet joining using sound vibration and/or ultrasound vibration is provided. Joining is provided in a state in which a rivet is inserted into a hole formed in a base member. The base member includes a first member and a second member. The hole is formed such that it passes through at least one of the members. The rivet is formed of a metal material and has a head portion and a body portion. A vibration processing part applies sound vibration and/or ultrasound vibration to the rivet in a state in which at least its body portion is inserted into the hole, so as to join the rivet and the inner face of the hole.

The application relates to a device for applying an applied force to a connection element such that the connection element is plastically deformed by the application of force. The device comprises a movably mounted head part with a machining head which is designed to contact the connection element; a drive which is designed to drive a translation of the head part in the longitudinal axis thereof; a second drive which is designed to drive a rotation of the machining head about a longitudinal axis; and a housing for receiving the first drive, the second drive, and the head part. The first drive and the second drive are electrically driven and are arranged coaxially. The application further relates to a method for operating a device according to the application and to the use of a device according to the application as an electric riveting machine.

The application relates to a device for applying an applied force to a connection element such that the connection element is plastically deformed by the application of force. The device comprises a movably mounted head part with a machining head which is designed to contact the connection element; a drive which is designed to drive a translation of the head part in the longitudinal axis thereof; a second drive which is designed to drive a rotation of the machining head about a longitudinal axis; and a housing for receiving the first drive, the second drive, and the head part. The first drive and the second drive are electrically driven and are arranged coaxially. The application further relates to a method for operating a device according to the application and to the use of a device according to the application as an electric riveting machine.

A rivet rotational feeding method for friction self-piercing riveting (F-SPR) system, comprising: a semi-hollow rivet, a driving spindle and a die. The bottom surface of the rivet head is connected to the semi-hollow rivet shank. The semi-hollow rivet shank has a wedge-shaped end. The rivet head has rotation driving structures and positioning structure on the top end. The rotation driving structures are central symmetric concave or convex surfaces. The positioning structure is a central symmetric and mirror symmetric concave or convex surface. The matching between the driving spindle and the rivet can improve the rotation reliability and positioning accuracy of the riveting at a high rotational speed during F-SPR process, which is beneficial to solve the problems of poor stability and non-coincidence between the geometry axis and the rotation axis of the rivet.