The invention relates to a holding device for a test sheet (1), with a receiving arrangement (2) for engagement with the test sheet (1), a handle arrangement (3) connected rigidly to the receiving arrangement (2) for a user (4) for positioning the test sheet (1), and a pushbutton arrangement (5) for producing a switching signal on the basis of an actuation by the user (4).

The invention relates to a holding device for a test sheet (1), with a receiving arrangement (2) for engagement with the test sheet (1), a handle arrangement (3) connected rigidly to the receiving arrangement (2) for a user (4) for positioning the test sheet (1), and a pushbutton arrangement (5) for producing a switching signal on the basis of an actuation by the user (4).

A blind rivet-nut having an annular-flange-like setting head and a hollow shaft for securing a blind rivet-nut in an opening of a carrier. The hollow shaft has a free end having a threaded portion for receiving a threaded element of a tensioning tool. A clamping portion adjacent to the setting head forms a bead-like deformation when the tensioning tool is used to clamp the carrier between the bead-like deformation and the setting head. A threadless shaft portion is formed between the clamping portion and the threaded portion. The threadless shaft portion is threaded by a thread self-rolling or thread self-tapping fastener. The fastener is received in a positive-locking manner when the fastener is screwed into the thread formed on the previously threadless shaft portion. A method is also disclosed for securing a component to a carrier by a blind rivet-nut.

A blind rivet-nut having an annular-flange-like setting head and a hollow shaft for securing a blind rivet-nut in an opening of a carrier. The hollow shaft has a free end having a threaded portion for receiving a threaded element of a tensioning tool. A clamping portion adjacent to the setting head forms a bead-like deformation when the tensioning tool is used to clamp the carrier between the bead-like deformation and the setting head. A threadless shaft portion is formed between the clamping portion and the threaded portion. The threadless shaft portion is threaded by a thread self-rolling or thread self-tapping fastener. The fastener is received in a positive-locking manner when the fastener is screwed into the thread formed on the previously threadless shaft portion. A method is also disclosed for securing a component to a carrier by a blind rivet-nut.

A method for automated installation of a semi-tubular fastener rivet is provided. The method includes controlling a numerical control drilling and riveting machine having an upper head and a lower head, to control movement of a lower pressure bushing, to apply a clamping force to hold a workpiece against an upper pressure bushing. The method includes controlling an upper drill spindle on the upper head, to drill a rivet-receiving hole from an upper side of the workpiece and to countersink the rivet-receiving hole. The method includes controlling a lower drill spindle on the lower head, to countersink the rivet-receiving hole from a lower side of the workpiece. The method includes controlling movement of an upper anvil from a retracted position to an installation position, and controlling movement of a lower anvil, to apply an upset force to a tail portion of the semi-tubular fastener rivet installed in the rivet-receiving hole.

The invention relates to a riveting machine comprising a piercing tool (52), an upper sheet clamp (71), and a lower sheet clamp (21), mounted movable relative to each other in the direction of bringing said sheet clamps (71, 21) closer to each other, an upper riveting tool (51) and a lower riveting tool (29) for flaring a rivet disposed inside an orifice formed through the parts (8) to be riveted. The upper sheet clamp (71) has a passage opening (72) facing which the drilling tool (52) is adapted to be positioned to enable said drilling tool (52) to pierce an area of said parts (8) clamped between the upper sheet clamp (71) and the lower sheet clamp (21). The upper sheet clamp (71) and the lower sheet clamp (21) are mounted movable relative to each other along a direction transverse to the piercing axis. The invention also relates to a riveting method.

The invention relates to a riveting machine comprising a piercing tool (52), an upper sheet clamp (71), and a lower sheet clamp (21), mounted movable relative to each other in the direction of bringing said sheet clamps (71, 21) closer to each other, an upper riveting tool (51) and a lower riveting tool (29) for flaring a rivet disposed inside an orifice formed through the parts (8) to be riveted. The upper sheet clamp (71) has a passage opening (72) facing which the drilling tool (52) is adapted to be positioned to enable said drilling tool (52) to pierce an area of said parts (8) clamped between the upper sheet clamp (71) and the lower sheet clamp (21). The upper sheet clamp (71) and the lower sheet clamp (21) are mounted movable relative to each other along a direction transverse to the piercing axis. The invention also relates to a riveting method.

A method for automated installation of a semi-tubular fastener rivet is provided. The method includes controlling a numerical control drilling and riveting machine having an upper head and a lower head, to control movement of a lower pressure bushing, to apply a clamping force to hold a workpiece against an upper pressure bushing. The method includes controlling an upper drill spindle on the upper head, to drill a rivet-receiving hole from an upper side of the workpiece and to countersink the rivet-receiving hole. The method includes controlling a lower drill spindle on the lower head, to countersink the rivet-receiving hole from a lower side of the workpiece. The method includes controlling movement of an upper anvil from a retracted position to an installation position, and controlling movement of a lower anvil, to apply an upset force to a tail portion of the semi-tubular fastener rivet installed in the rivet-receiving hole.

An aircraft fuselage assembling jig is a horizontal-type jig on which an aircraft fuselage panel is placed in a laid-down state, and includes: a base with a plurality of frame indexes for positioning both ends of a plurality of aircraft fuselage frames; a plurality of header plates, each of which protrudes from the base to extend along the panel, the header plates being arranged in parallel in an axial direction of the panel; a plurality of electric cylinders radially provided on each plate, the electric cylinders moving respective receiving members in a radial direction of the panel, the receiving members contacting a skin included in the panel; and air lifting devices provided on the respective receiving members and that, when supplied with air pressure, lift the skin from receiving surfaces of the respective receiving members and support the aircraft fuselage panel such that the aircraft fuselage panel is slidable.

An aircraft fuselage assembling jig is a horizontal-type jig on which an aircraft fuselage panel is placed in a laid-down state, and includes: a base with a plurality of frame indexes for positioning both ends of a plurality of aircraft fuselage frames; a plurality of header plates, each of which protrudes from the base to extend along the panel, the header plates being arranged in parallel in an axial direction of the panel; a plurality of electric cylinders radially provided on each plate, the electric cylinders moving respective receiving members in a radial direction of the panel, the receiving members contacting a skin included in the panel; and air lifting devices provided on the respective receiving members and that, when supplied with air pressure, lift the skin from receiving surfaces of the respective receiving members and support the aircraft fuselage panel such that the aircraft fuselage panel is slidable.