A tool-change station includes a base, and a first tool-change member that is coupled to the base and is rotatable relative to the base. The first tool-change member includes a first tool-engagement portion, geometrically complementary with a tool-change-engagement portion of a tool of a rotary drive.

An insert for connecting first and second parts each having holes, the insert having a cylindrical sleeve and a core. The cylindrical sleeve having a central void and an outer diameter sized to fit into the hole in the first part. The central void having a uniform diameter across a length of the cylindrical sleeve. The core having a through-hole and a tapered outer wall such that when the core is pulled into the cylindrical sleeve, the cylindrical sleeve expands against the hole of the first part to secure the insert to the first part. The through-hole of the core having a threaded portion at a first end of the core to engage with a threaded fastener to secure the second part to the first part. The first end of the core is press-fit into the cylindrical sleeve.

A connection system including a connection hole inserted in form of a circular hole on the part to be connected, a cylindrical hole bushing engages into the connection hole and has a screw hole thereon vertical to the surface of the part to which it is placed, a bolt is placed on the hole bushing such that the head part remains on the lower surface of the part or inside the part, a nut attached at the bolt end extending outwards the part, a washer formed of a circular base is placed between the head part and the hole bushing, a rib extends vertically over the base and is folded by compressing between the head part and the hole bushing, and prevents the head part from passing through the connection hole, and enabling two or more parts to be connected.

Hydraulic tool for driving a pulling and/or pressing device, comprising a drive shaft that can be mounted to a screwdriver, wherein the drive shaft is operable to drive a hydraulic pump that pumps hydraulic fluid into the operating chamber of a hydraulic power piston. The hydraulic tool may in particular be configured as a riveting or punching attachment for a cordless screwdriver.

The present invention relates to a method of fastening a fastening element to a workpiece, in particular to a sheet metal part, wherein the fastening element comprises a flange section provided for contact with the workpiece; and a fastening section which has a rivet section that at least sectionally bounds a hollow space in a peripheral direction and that is at least sectionally produced from a metal material, said method comprising the steps: providing the workpiece; inserting the fastening element into the workpiece; and at least sectionally reshaping the rivet section such that a reshaped section of the rivet element engages behind the workpiece at a side of the workpiece remote from the flange section,
wherein the insertion and the reshaping are effected by a fastening movement of the fastening element in a common fastening direction; and
wherein the fastening element, the workpiece, and/or a reshaping tool provided for reshaping the rivet section is/are acted on by a mechanical vibration, in particular by an ultrasound vibration, at least at times during the insertion of the fastening element into the workpiece and/or during the reshaping of the rivet section.

A clutch apparatus for releasing the transmission of rotation from an electric motor to a spin shaft, is equipped with a rear clutch nut and a front clutch nut in order from the rear end side. The rear clutch nut transmits rotating force from the electric motor to the front clutch nut when engaged with the front clutch nut, but is disengaged from the front clutch nut by a predetermined rotation load. The front clutch nut has a cylindrical shape, so that the spin shaft can be arranged at an axial center portion, and when engaged with the engaging unit of the spin shaft, the rotating force is transmitted to the spin shaft, but the clutch is disengaged by a backward stroke of the front clutch nut and a predetermined stroke toward the tip of the spin shaft.

A blind fastener tool with pulling fingers is provided. One embodiment is a tool for installing a blind fastener in a hole. The tool includes stationary fingers having tips protruding from a front end of the housing to contact a rim of a sleeve of the blind fastener. The tool also includes pulling fingers in the housing arranged longitudinally in spaces between the stationary fingers. Ends of the pulling fingers proximate to the front end are configured to radially expand to receive a drive element of the blind fastener, and to radially collapse to grip a collar of the drive element. The pulling fingers are configured to translate inside the housing to pull the drive element away from the sleeve as the stationary fingers contact the rim of the sleeve to form a bulb with the sleeve at a blind side of the hole.

The present invention concerns a device for removing a fastener (12) installed in the hole of a structure, said device comprising: a base (20) capable of being fastened to the structure, and a guiding device, defining a cylindrical passage (78) and including: a support (48) equipped with a first removable assembly means with the base in a first assembled configuration; a blocking element (50), mobile relative to the support; and a device (83, 84) for adjusting an axial position of the blocking element relative to the support, to a blocked configuration corresponding to the engagement of said blocking element with the fastener (12), so as to prevent the rotation of said fastener relative to the structure.

A riveting tool accessory comprises a cylinder handgrip (1) A rotating member (2) and a transmission member (3) are disposed in the cylinder handgrip in a penetrating manner, the rotating member is axially positioned and circumferentially and rotatably connected to the cylinder handgrip, and the transmission member is circumferentially positioned and axially and movably connected to the cylinder handgrip. The rotating member and the transmission member can be connected by means of a thread structure (4). When the rotating member rotates forwards or backwards, the transmission member can be driven to move backwards or forwards. The front end of the transmission member is provided with a connecting member (5) capable of loading a riveting fastener (100), and the front end of the cylinder handgrip is provided with a guide nozzle assembly (6). The connecting member is disposed in the guide nozzle assembly in a penetrating manner, and the front end of the connecting member can reach out of the guide nozzle assembly. A compression pretightening spring (7) is disposed between the transmission member and the guide nozzle assembly, and a safety valve mechanism (8) is disposed between the transmission member and the connecting member. The riveting tool accessory has the advantages that the structural design is reasonable, and the riveting tool accessory can be adaptive to a driving device containing power output, and enables the riveting fastener to switch screw pairs before a force is applied to the riveting fastener. Also disclosed is a riveting tool using the riveting tool accessory.

A rivet nut tool has a primary gear driven by a motor and a gear assembly coupled to the primary gear for rotation for moving a pull screw by a movement distance to achieve a stroke. The tool has a selection button for selecting a stroke value and a pull-riveting force. A control processor receives the selected stroke value and pull-riveting force. A count sensor is used to measure the rotational movement of a primary gear in terms of signal counts for determining the stroke achieved by the pull screw. The selected stroke value is presentable as a preset count value. When the signal count reaches the preset count value, or the motor current exceeds the current needed for the selected pull-riveting force, the control processor is configured to reverse the rotation direction of the motor so as to return the pull screw to its start position.