Abstract: A foil peeling apparatus includes an electric wire gripping unit configured to grip a multi-core electric wire including wire members linearly arranged in parallel, a foil covering the wire members, and a sheath covering the foil, the sheath being peeled off at a tip end portion of the electric wire such that the foil is exposed. The foil peeling apparatus further includes: a wire member space forming unit configured to be pressed against an exposed portion of the foil between the wire members so as to form a space between the wire members; a foil cutting unit configured to be abutted against the exposed portion of the foil corresponding to the space formed between the wire members so as to form a cut in the foil; and a foil removal unit configured to open the foil from the cut, and cut the foil which has been opened.

Abstract: Positioning of a shield electric wire is performed by an insertion jig in front of a peeling jig, and a portion at a distal end of the shield electric wire where a metal foil is exposed is inserted into an electric wire insertion hole of a peeling jig through the center hole of an insertion jig. Air is blown from an opening on an other-end-surface side of the peeling jig toward the distal end of the shielded electric wire, and the metal foil is expanded while being separated from a wire core. A cut is formed from a side of a metal foil expanded by blowing air in a predetermined gap between a one-end-surface of the peeling jig and an end surface of the insertion jig, and the metal foil is cut from the cut as a starting point.

Abstract: A twisted wire producing apparatus includes an electric wire twisting unit that twists two electric wires, a controller that controls the electric wire twisting unit, and a tension adding part that adds tension to the two electric wires. The electric wire twisting unit includes a one end chuck part, the other end chuck part, and chuck rotating parts for rotating the one end chuck part and/or the other end chuck part under control of the controller. The other end chuck part includes a base, a chuck main body, twist prevention parts, and a wire length difference absorbing part. The wire length difference absorbing part includes an inter-electric wire inserting part which is movable in a direction perpendicular to the electric wires extending direction.

Abstract: Positioning of a shield electric wire is performed by an insertion jig in front of a peeling jig, and a portion at a distal end of the shield electric wire where a metal foil is exposed is inserted into an electric wire insertion hole of a peeling jig through the center hole of an insertion jig. Air is blown from an opening on an other-end-surface side of the peeling jig toward the distal end of the shielded electric wire, and the metal foil is expanded while being separated from a wire core. A cut is formed from a side of a metal foil expanded by blowing air in a predetermined gap between a one-end-surface of the peeling jig and an end surface of the insertion jig, and the metal foil is cut from the cut as a starting point.

Abstract: A shield foil removing device includes an opening and closing chuck configured to accommodate two wire cores surrounded by a shield foil in a space having a rectangular cross section orthogonal to an electric wire longitudinal direction, which is formed by closing, in such a direction that a longitudinal direction of the rectangular space and an arrangement direction of the two wire cores in a cross section coincide with each other, compresses the shield foil in a direction orthogonal to an arrangement direction of the two wire cores by reducing the rectangular space by a closing operation, and brings the shield foil into close contact with outer peripheral surfaces of the two wire cores to secure a gap continuous in a longitudinal direction of the shielded electric wire between both of outer peripheral curved surfaces adjacent to each other of the two wire cores and the shield foil.

Abstract: Provided is an electric wire straightening device capable of correcting a twist generated around an axis of an electric wire. An electric wire correcting device includes an electric wire holding part provided rotatably around an axis of the electric wire for holding an electric wire having been withdrawn from an electric wire reel so as to further withdraw the electric wire toward a side opposite to the electric wire reel and, a rotation driving part rotating the electric wire holding part in an twist backing direction opposite to a twist around an axis of the electric wire occurring in the electric wire between the electric wire reel and the electric wire holding part by further withdrawing the electric wire from the electric wire holding part.

Abstract: Positioning of a shield electric wire is performed by an insertion jig in front of a peeling jig, and a portion at a distal end of the shield electric wire where a metal foil is exposed is inserted into an electric wire insertion hole of a peeling jig through the center hole of an insertion jig. Air is blown from an opening on an other-end-surface side of the peeling jig toward the distal end of the shielded electric wire, and the metal foil is expanded while being separated from a wire core. A cut is formed from a side of a metal foil expanded by blowing air in a predetermined gap between a one-end-surface of the peeling jig and an end surface of the insertion jig, and the metal foil is cut from the cut as a starting point.

Abstract: The purpose of the present invention is to provide a terminal crimping device and a terminal crimping method which provide improved machining quality. A terminal crimping device is configured to crimp-connect, to an electric wire, each of a pair of adjacent terminals of a plurality of terminals coupled to each other by a carrier, the carrier having a terminal connection section connected to each terminal and a coupling section coupling adjacent terminal connection sections, the terminal crimping device including a carrier cutting unit configured to cut the coupling section, a terminal positioning unit configured to position one terminal of the pair of terminals such that the one terminal is located close to another terminal of the pair of terminals, and crimp dies configured as a pair to crimp-connect each terminal to the electric wire.

Abstract: A method includes a moving step of moving linearly a holder holding parallel to one another in a single row a plurality of connector terminals while measuring a movement distance of the holder with a tip of each of the plurality of connector terminals pointing in a traveling direction, a passage detection step of detecting passage of the tip of each of the plurality of connector terminals at a target point on a path, the target point coinciding with each other in a side view when the path of each of the plurality of connector terminals is viewed in an arrangement direction of the plurality of connector terminals, and a displacement amount acquiring step of acquiring a displacement amount between the tips of the plurality of connector terminals based on the movement distance when the passage is detected for the tip of each of the plurality of connector terminals.

Abstract: A multicore cable manufacturing method for manufacturing a multicore cable with reduced influence on high-frequency characteristics is provided. The multicore cable manufacturing method includes a plurality of crimping dies, each crimping die being constituted of a pair of dies to connect, by crimping, each electric wire and each terminal. The plurality of crimping dies is configured to substantially simultaneously connect the plurality of electric wires and the plurality of terminals, and the crimping die is configured to connect a front end portion of each electric wire and each terminal with the front end portions of the plurality of electric wires extending radially centering on a branch point located on a rear side of the front end portion.

Abstract: A core wire deformation jig and a method for deforming a plurality of core wires which are exposed from an end of a multi-core cable for a further working step. The jig includes a first clamping unit for clamping the core wires aligned on the arranging plane in a first clamping direction intersecting the arranging plane, a separation pin for separating the core wires, wherein the separation pin is inserted between the core wires in a insertion direction parallel to the first clamping direction, and a second clamping unit for providing bends to the core wires by clamping the core wires in a second clamping direction parallel to the arranging plane and intersecting the plurality of core wires and applying a pressure on the core wires, with the separation pin inserted between the core wires.

Abstract: A foil peeling apparatus includes an electric wire gripping unit configured to grip a multi-core electric wire including wire members linearly arranged in parallel, a foil covering the wire members, and a sheath covering the foil, the sheath being peeled off at a tip end portion of the electric wire such that the foil is exposed. The foil peeling apparatus further includes: a wire member space forming unit configured to be pressed against an exposed portion of the foil between the wire members so as to form a space between the wire members; a foil cutting unit configured to be abutted against the exposed portion of the foil corresponding to the space formed between the wire members so as to form a cut in the foil; and a foil removal unit configured to open the foil from the cut, and cut the foil which has been opened.

Abstract: A terminal insertion device is provided which enables inserting connector terminals into terminal accommodating chambers of a connector housing, each of the connector terminals being connected to an end of each of a plurality of electric wires in a multi-core cable by crimping, while reducing the separation length for the plurality of electric wires. The terminal insertion device comprises: a terminal separator configured to be interposed between two connector terminals; a terminal chuck configured to clamp and bundle the two connector terminals in two directions, i.e., in a first direction intersecting an insertion direction and in a second direction intersecting the insertion direction and the first direction; and a moving mechanism configured to move at least one of a connector housing and the two connector terminals held by the terminal separator and the terminal chuck to insert the two connector terminals into two terminal accommodating chambers.

Abstract: An apparatus (1) is designed to manufacture a twisted wire by twisting a plurality of electric wires (101), and includes an raising and lowering unit (2), an twisting unit (3), and a control unit (4). The raising and lowering unit lifts the plurality of electric wires and lowers the manufactured twisted wire, and includes: a raising and lowering portion (6); a guiding portion (7) vertically guiding the raising and lowering portion; and a raising and lowering mechanism (8) capable of switching a raising and lowering speed of the raising and lowering portion to a high speed or a low speed.

Abstract: A twisted wire producing apparatus includes an electric wire twisting unit that twists two electric wires, a controller that controls the electric wire twisting unit, and a tension adding part that adds tension to the two electric wires. The electric wire twisting unit includes a one end chuck part, the other end chuck part, and chuck rotating parts for rotating the one end chuck part and/or the other end chuck part under control of the controller. The other end chuck part includes a base, a chuck main body, twist prevention parts, and a wire length difference absorbing part. The wire length difference absorbing part includes an inter-electric wire inserting part which is movable in a direction perpendicular to the electric wires extending direction.

Abstract: A twisted wire producing apparatus includes an electric wire twisting unit that twists two electric wires, a controller that controls the electric wire twisting unit, and a tension adding part that adds tension to the two electric wires. The electric wire twisting unit includes a one end chuck part, the other end chuck part, and chuck rotating parts for rotating the one end chuck part and/or the other end chuck part under control of the controller. The other end chuck part includes a base, a chuck main body, twist prevention parts, and a wire length difference absorbing part. The wire length difference absorbing part includes an inter-electric wire inserting part which is movable in a direction perpendicular to the electric wires extending direction.

Abstract: The purpose of the present invention is to provide a terminal crimping device and a terminal crimping method which provide improved machining quality. A terminal crimping device is configured to crimp-connect, to an electric wire, each of a pair of adjacent terminals of a plurality of terminals coupled to each other by a carrier, the carrier having a terminal connection section connected to each terminal and a coupling section coupling adjacent terminal connection sections, the terminal crimping device including a carrier cutting unit configured to cut the coupling section, a terminal positioning unit configured to position one terminal of the pair of terminals such that the one terminal is located close to another terminal of the pair of terminals, and crimp dies configured as a pair to crimp-connect each terminal to the electric wire.

Abstract: A terminal insertion device is provided which enables inserting connector terminals into terminal accommodating chambers of a connector housing, each of the connector terminals being connected to an end of each of a plurality of electric wires in a multi-core cable by crimping, while reducing the separation length for the plurality of electric wires. The terminal insertion device comprises: a terminal separator configured to be interposed between two connector terminals; a terminal chuck configured to clamp and bundle the two connector terminals in two directions, i.e., in a first direction intersecting an insertion direction and in a second direction intersecting the insertion direction and the first direction; and a moving mechanism configured to move at least one of a connector housing and the two connector terminals held by the terminal separator and the terminal chuck to insert the two connector terminals into two terminal accommodating chambers.

Abstract: A twisted wire manufacturing method for manufacturing a twisted wire, includes hanging U-turn portions of the at least two wires on a wire hanging member, checking one end portions and the other end portions of the at least two wires, pulling up the at least two wires in a state that the U-turn portions are hung on the wire hanging member, twisting the at least two wires together after the wire pull-up step is conducted, and transferring a twist-completed wire produced by the wire twisting step to a twisted wire temporary placement hook which is disposed above the wire hanging member.

Abstract: The objective of the present invention is to provide a core wire deformation jig and a method for deforming a plurality of core wires which are exposed from an end of a multi-core cable for a further working step. A core wire deformation jig comprises a first clamping unit for clamping the plurality of core wires aligned on the arranging plane in a first clamping direction intersecting the arranging plane, a separation pin for separating the plurality of core wires from each other, wherein the separation pin is inserted between the plurality of core wires clamped by the first clamping unit in a insertion direction parallel to the first clamping direction, and a second clamping unit for providing bends to the plurality of core wires by clamping the plurality of core wires in a second clamping direction parallel to the arranging plane and intersecting the plurality of core wires and applying a pressure on the core wires, with the separation pin inserted between the plurality of core wires.