The disclosure relates to a tool for inserting or removing a wire thread insert. The spindle body inserted in the tool has a radial recess, through which an engaging end of the installation blade engages a wire thread insert. The radial recess has a curvilinear circumferential contour or at least one relief notch, which serve for mechanical tension relief in the spindle body.

A coupling is described for connecting an interchangeable tool head to a machine part of a pressing device. The machine part features a receptacle region (A) for accommodating a shaft section of an interchangeable tool head, which can be axially displaced in the receptacle region (A), and the shaft section comprises an end face (S) and at least two engaging elements. The at least two holding elements are arranged in the receptacle region (A) and a guide groove is respectively formed between two adjacent holding elements. Also described are tools such as pressing devices utilizing the couplings and related methods.

A method of removing a threaded insert from a wall structure is disclosed, where the insert has a flange and an internally threaded barrel. The disclosed method involves: introducing a bracket onto an outer edge of the wall structure, the bracket having a supporting arm with a hole, and the bracket having a plunger positioning arm with a threaded hole. The bracket is positioned such that the supporting arm is located on a first side of the wall structure, the plunger positioning arm is located on a second side of the wall structure, and the flange resides in the hole. A threaded plunger component is actuated to move a distal end section of the plunger component toward an exposed end of the threaded insert. Continued actuation of the plunger component increases force imparted on the exposed end of the threaded insert, until the insert is released from the wall structure.

A method for remanufacturing an ultra-large copper nut includes steps of: step (1) coarsening treatment; step (2) purifying treatment; step (3) detecting a material of the ultra-large copper nut; step (4) sleeving a thermal insulation device; step (5) preheating the ultra-large copper nut; step (6) melting-deposition shaping; step (7) post-processing; and step (8) detecting. The method of the present invention simultaneously utilizes water, electricity, gas, fire and machine and performs melting-deposition on materials by simultaneously supplying water, electricity, gas, fire and machine according to the designed requirements. The method of the present invention solves problems of large thickness abrasion and remediation of fracture components. The method of the present invention is capable of preventing the ultra-large copper nut from deformation and collapse and is a feasible remanufacturing for decreasing the huge economic loss caused by damages of expensive ultra-large of nonferrous metals.

A threaded pin remover for a threaded pin in an interference fit in a structure is provided. The threaded pin remover includes a housing. A pin grasper is slidably mounted in the housing and includes: a first end configured to couple to a linear actuator for slidably moving the pin grasper between an extended position relative to the housing and a retracted position relative to the housing. A second end of the pin grasper includes a pin grasping collet configured to, in the retracted position relative the housing, engage with a portion of the housing to cause grasping of the exposed portion of the threaded pin by the pin grasping collet to release the threaded pin from the interference fit, allowing removing of the threaded pin from the structure.

Wire thread insert consisting of a body with a plurality of helically wound windings, in which the plurality of helically wound windings comprises a first end winding and a second end winding which define the body at opposite axial ends, the first end winding has a first integral form-fitting means in a first end section and the second end winding has a second integral form-fitting means in a second end section, so that in an installed state of the wire thread insert a form-fit rotation-inhibiting connection with an adjacent component structure can be produced via the first and the second integral form-fitting means respectively.

A wire thread insert comprises besides a cylindrical helix consisting of a plurality of coils a moving tang projecting into the interior of the helix for installing the wire thread insert into a receiving thread. The wire thread insert is connected to the cylindrical helix via a bending portion such that the moving tang can be redressed into the receiving thread after installation of the wire thread insert. The wire thread insert is installed by means of an installation tool with a mounting spindle, which installs the wire thread insert in the receiving thread via a moving shoulder and the moving tang. A compression blade provided at the mounting spindle bends the moving tang back into the receiving thread while the mounting spindle is removed from the installed wire thread insert.

A wire thread insert comprises besides a cylindrical helix consisting of a plurality of coils a moving tang projecting into the interior of the helix for installing the wire thread insert into a receiving thread. The wire thread insert is connected to the cylindrical helix via a bending portion such that the moving tang can be redressed into the receiving thread after installation of the wire thread insert. The wire thread insert is installed by means of an installation tool with a mounting spindle, which installs the wire thread insert in the receiving thread via a moving shoulder and the moving tang. A compression blade provided at the mounting spindle bends the moving tang back into the receiving thread while the mounting spindle is removed from the installed wire thread insert.

A wire thread insert comprises besides a cylindrical helix consisting of a plurality of coils a moving tang projecting into the interior of the helix for installing the wire thread insert into a receiving thread. The wire thread insert is connected to the cylindrical helix via a bending portion such that the moving tang can be redressed into the receiving thread after installation of the wire thread insert. The wire thread insert is installed by means of an installation tool with a mounting spindle, which installs the wire thread insert in the receiving thread via a moving shoulder and the moving tang. A compression blade provided at the mounting spindle bends the moving tang back into the receiving thread while the mounting spindle is removed from the installed wire thread insert.

An assembly tool for thread inserts includes a stem, a bush, and a locking means. The stem includes a first external thread extending over at least a portion of the stem and a second thread extending over at least a portion of the stem. The bush includes a thread that is engaged with the second thread of the stem. The locking means releasably locks a rotation of the stem relative to the bush. A length of the stem and a length of the bush complement one another such that the first external thread of the stem protrudes at least partially from the bush.