An orthodontic wire bending device includes a providing part, a bending unit and a cutting part. The providing part is configured to provide a wire. The bending unit is disposed at a front side of the providing part, and includes a fixing part and a bending part. The fixing part is configured to fix the wire. The bending part is configured to bend the wire fixed by the fixing part. The cutting part is configured to cut the wire bent by the bending part. The bending part includes a bending module, and the bending module is rotated along a circumferential direction or moves along a direction to make contact with at least one side of the wire for bending the wire.

A material-forming device for a wire mesh includes a plurality of contact rods that are supported by the frame and configured to threadedly receive a sheet of wire mesh that moves through the plurality of contact rods in a downstream direction. An inner contact rod and an outer contact rod are each configured to engage a first side of the sheet of wire mesh, and a middle contact rod is positioned between the inner contact rod and the outer rod and configured to engage a second side of the sheet of wire mesh that opposes the first side. The shape of the outer contact rod and/or the inner contact rod is configured to bend the sheet of wire mesh around the middle contact rod as the sheet of wire mesh moves in the downstream direction.

A bending-forming jig used in bending and forming a protruding portion of a leg portion of a U-shaped conductor toward a circumferential direction, the protruding portion protruding from an axial end surface of a stator core, the bending-forming jig including a ring portion and a claw portion, the claw portion including a first abutting surface that rises from an axial end surface of the ring portion with the surface directed in the circumferential direction and abuts against a tip portion of the protruding portion from the circumferential direction, and a projecting portion that projects, at a tip end of the claw portion, in the circumferential direction from the abutting surface and abuts against the tip portion of the protruding portion from the axial direction toward the axial end surface of the ring portion.

To simplify a commissioning and parameter change in a 3D bending process of wires, a 3D bending device and a 3D bending method for bending a wire are provided. The wire is held by a first leg and a second leg and the legs are moved, via a first to third relative movement device, in a first to third relative movement with a first to third movement axis in order to change, in an adjustable manner independently of one another, torsion angles of the first and second legs and a distance between the central axes of the legs.

A coil segment forming apparatus, a coil segment forming method and a manufacturing apparatus of an electrical rotating machine, whereby coil segments with various kinds of shape can be formed without exchanging a press die, and it is not necessary that a lot of coil segments of various kinds of shape are preliminarily formed and stocked is provided. The coil segment forming apparatus includes a first bending section for bending in the same plane a linear wire rod into a predetermined shape consisting of a pair of slot insertion portions that are substantially parallel to each other and a linking portion for connecting the pair of slot insertion portions. The first bending section has a plurality of jigs arranged on the same plane for supporting the wire rod, and a plurality of drive mechanisms for moving respectively the plurality of jigs on the same plane so that the wire rod is formed in the predetermined shape based on moving amounts respectively set depending on shape conditions of the coil segment to be formed.

A hairpin type of stator coil forming apparatus includes a first forming machine configured to form a vertex in a material coil so that a central portion of the material coil protrudes upward, and to form inclined portions inclined to both sides of the vertex, a second forming machine configured to receive the material coil bent-formed by the first forming machine and to form a front/rear bent portion in the material coil by bending one inclined portion and a portion of the other inclined portion based on the vertex, and a third forming machine configured to receive the material coil bent-formed by the second forming machine and to roundly form the inclined portions in front and rear directions.

A wire forming press apparatus includes a press having a die assembly including a displaceable upper die moved with respect to a fixed lower die. A first lever arm is manually displaced to perform a first operation in a first direction on a wire blank positioned between the upper die and the lower die. A second lever arm is manually displaced to perform a second operation in a second direction opposite to the first direction on the wire blank. A first gear set is connected to and rotated by displacement of the first lever arm. A second gear set is connected to and is rotated by displacement of the second lever arm.

A method includes feeding material in wire, rod or band form to a bending head through the a guiding nozzle of a feeding device and bending the material via a bending die. The bent material is taken out of the bending machine by a robot gripper arm controlled via a control device, and the bending die and/or the guiding nozzle is removed from the bending machine by a, preferably the same, robot gripper arm. Optionally, a further bending die and/or a further guiding nozzle is arranged on the bending machine by a, preferably the same, robot gripper arm. Optionally, the material is fed to the bending head through the further guiding nozzle and/or bent via the further bending die. Optionally, the bent material is removed from the bending machine by a, preferably the same, robot gripper arm.

To provide a processing apparatus for a flat wire adapted to suppress adhesion of a shaft and improve durability. A processing apparatus includes: a holder including a rotation axis for rotating in a bending direction of a flat wire; and a clamp including the rotation axis for rotating in the bending direction and configured to restrain the flat wire by clamping it with the holder, in which the clamp includes: a flange that restrains the flat wire between it and the holder; a shaft connected to the flange and disposed so as to pass through a penetrating hole formed in the holder; and a coating film formed on a surface of the shaft, and in which a hardness of the shaft and a hardness of the coating film are greater than a hardness of the holder.

A three-dimensionally shaped round metallic wire having a cross-section non-circular portion in a predetermined portion without performing additional processing and having specified dimensional accuracy and accuracy of form. In an intermediate step in which the round metallic wire is processed in a predetermined three-dimensional shape, a cross-section non-circular portion forming machine 20 which forms the cross-section non-circular portion having a non-circular cross-sectional shape in at least one position is included. At the time of bending, the cross-section non-circular portion is held by a wire holding portion of a bending machine 30, and the bending is performed in the predetermined three-dimensional shape. Holding the cross-section non-circular portion causes relative rotation between the cross-section non-circular portion and the wire holding portion to be suppressed as compared with a case of the cross-section circular shape. Accordingly, bending accuracy in the three-dimensional shape for the round metallic wire is improved.