JP7044816B2 - Wire straightening method and wire straightening device - Google Patents

Description

The present invention relates to an electric wire straightening method and an electric wire straightening device.

Patent Document 1 describes an insertion device in which a terminal is sandwiched between a pair of terminal gripping claws, the posture of the terminal is adjusted, and the terminal is inserted into the terminal storage chamber of the housing. According to this device, even if the terminal is tilted with respect to the central axis of the electric wire, the terminal can be held and easily inserted into the terminal accommodating chamber of the housing.

Japanese Unexamined Patent Publication No. 6-314585

By the way, for example, an electric wire such as a shielded electric wire used in Ethernet (registered trademark) includes a plurality of core wires. In such an electric wire having a plurality of core wires, it is required to insert the terminals attached to the ends of the core wires into the housing at the same time. However, in the above device, it is difficult to simultaneously grasp a plurality of terminals and insert them into the terminal accommodating chamber of the housing. Therefore, it is desired that the postures of the plurality of terminals attached to the plurality of core wires of the electric wire are corrected and aligned in advance, and the aligned terminals are simultaneously inserted into the terminal accommodating chamber of the housing.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wire straightening method and a wire straightening device capable of easily straightening the postures of terminals mounted on a plurality of core wires. It is in.

In order to achieve the above-mentioned object, the electric wire straightening method and the electric wire straightening device according to the present invention are characterized by the following (1) to (4).
(1) A wire straightening method for correcting the posture of the terminal in a wire in which a plurality of core wires to which terminals are mounted are bundled with a sheath.
A separator is placed between the terminals mounted on the core wire, and the separator is placed between the terminals.
With respect to the electric wire, the separator is rotated relative to one side and the other side with respect to the axis of the electric wire.
An electric wire straightening method characterized by that.

(2) The cross-shaped separator is inserted and arranged between the terminals attached to the two to four core wires drawn out from the end of the sheath.
The cross-shaped separator with respect to the electric wire is rotated relative to one side and the other side with respect to the axis of the electric wire.
The electric wire straightening method according to (1) above, characterized in that.

(3) The terminal is pressed against the separator by a guide member, and the terminal is pressed against the separator.
The separator is rotated with respect to the electric wire together with the guide member, relative to one side and the other side with respect to the axis of the electric wire.
The electric wire straightening method according to (1) or (2) above.

(4) An electric wire straightening device for correcting the posture of the terminal in an electric wire in which a plurality of core wires to which terminals are attached are bundled by a sheath.
A grip portion that grips the electric wire and
A straightening portion having a separator arranged between the terminals attached to the core wire drawn from the end of the electric wire gripped by the grip portion, and a straightening portion.
A support portion that alternately rotates the straightening portion to one side and the other side around the axis of the electric wire gripped by the gripping portion, and a support portion.
To prepare
An electric wire straightening device characterized by that.

According to the wire straightening method having the configuration of (1) above, a separator is placed between the terminals attached to the core wires drawn from the end of the sheath, and the separator is centered on the wire with the axis of the wire as the center. By alternately rotating the wire to one side and the other side, the core wire drawn from the electric wire is twisted and habitualized. As a result, the posture of the terminals attached to the core wire can be corrected and easily aligned. Therefore, the work of inserting the terminal into the terminal accommodating chamber of the housing can be smoothly performed, and for example, the work of attaching the terminal to the housing can be easily automated.

According to the wire straightening method having the configuration of (2) above, the postures of the terminals attached to the four core wires drawn out from the sheath can be straightened at the same time and easily aligned.

According to the wire straightening method having the configuration of (3) above, with the terminal pressed against the separator by the guide member and held, the separator is relatively one and the other with the guide member with respect to the wire centering on the axis of the wire. Since the cables are alternately rotated to, the postures of the respective terminals can be corrected so as to be aligned in the same direction. This makes it possible to more smoothly insert the terminal into the terminal accommodating chamber of the connector.

According to the electric wire straightening device having the configuration of (4) above, the separator of the straightening portion is arranged between the terminals attached to the core wires drawn from the end of the sheath, and the electric wire gripped by the grip portion is provided. By alternately rotating the straightening portion relative to one side and the other side with respect to the axis of the electric wire, the core wire drawn from the electric wire is twisted and habitualized. As a result, the posture of the terminals attached to the core wire can be corrected and easily aligned. Therefore, the work of inserting the terminal into the terminal accommodating chamber of the housing can be smoothly performed, and for example, the work of attaching the terminal to the housing can be easily automated.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a wire straightening method and a wire straightening device capable of easily straightening the postures of terminals mounted on a plurality of core wires.

The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments described below (hereinafter referred to as "embodiments") with reference to the accompanying drawings. ..

FIG. 1 is a perspective view of an electric wire having a plurality of core wires to which terminals are mounted. FIG. 2 is a perspective view of the electric wire straightening device according to the embodiment of the present invention. FIG. 3 is a diagram illustrating the rotation of the straightening portion constituting the electric wire straightening device, and FIGS. 3 (a) and 3 (b) are front views of the electric wire straightening device, respectively. FIG. 4 is a perspective view showing the structure of a straightening portion constituting the electric wire straightening device. 5A and 5B are views showing a process of correcting the posture of a terminal attached to a core wire by using an electric wire straightening device, and FIGS. 5A to 5D are schematic side surfaces of the end portions of the electric wires, respectively. It is a figure and the schematic front view.

Specific embodiments of the present invention will be described below with reference to the respective figures.

First, an electric wire whose terminal position is corrected by the electric wire straightening device according to the embodiment of the present invention will be described. FIG. 1 is a perspective view of an electric wire having a plurality of core wires to which terminals are mounted.

As shown in FIG. 1, the electric wire 11 has four core wires 13 and is used, for example, in an in-vehicle Ethernet (registered trademark). These core wires 13 are composed of a conductor 15 and a jacket 17. The conductor 15 is formed by twisting a wire made of a conductive metal material such as copper, a copper alloy, aluminum or an aluminum alloy. The outer cover 17 is made of an insulating resin material and covers the outer periphery of the conductor 15. These core wires 13 are bundled and covered with a sheath 19 made of an insulating resin material to form one electric wire 11.

At the end of the electric wire 11, the core wire 13 is exposed from the sheath 19. In these core wires 13, the conductor 15 is exposed at the end thereof, and the terminal 21 is attached to the end portion of the core wire 13 from which the conductor 15 is exposed. In this electric wire 11, terminals 21 attached to a plurality of core wires 13 are inserted into and accommodated in terminal accommodating chambers of a housing (not shown).

The terminal 21 is formed of a conductive metal material such as copper or a copper alloy. In this example, the terminal 21 is a female terminal and is connected to a male terminal to conduct conduction. The terminal 21 has an electrical connection portion 23 and an electric wire connection portion 25. The electrical connection portion 23 is formed in a square cylinder shape, and is electrically connected to the male terminal by inserting a tab portion formed in the shape of a pin of the male terminal into the electrical connection portion 23. In the terminal 21, the electric wire connecting portion 25 is crimped and fixed to each core wire 13 in which the conductor 15 is exposed.

Next, an electric wire straightening device that corrects the posture of each terminal 21 of the electric wire 11 will be described.
FIG. 2 is a perspective view of the electric wire straightening device according to the embodiment of the present invention. FIG. 3 is a diagram illustrating the rotation of the straightening portion constituting the electric wire straightening device, and FIGS. 3 (a) and 3 (b) are front views of the electric wire straightening device, respectively. FIG. 4 is a perspective view showing the structure of a straightening portion constituting the electric wire straightening device.

As shown in FIG. 2, the electric wire straightening device 100 has a gripping mechanism 30 and a straightening mechanism 40.

The gripping mechanism 30 has an electric wire accommodating portion 31 and a gripping portion 32. The electric wire accommodating portion 31 is formed in a groove shape in which the electric wire 11 can be accommodated. The electric wire 11 is fitted and accommodated in the electric wire accommodating portion 31 from above. The grip portion 32 has a grip claw portion 33 provided so as to be movable in a direction close to and away from each other, and an end portion of an electric wire 11 housed in the electric wire accommodating portion 31 between these grip claw portions 33. Is placed. The grip portion 32 grips the end portion of the electric wire 11 by the grip claw portion 33 by moving the grip claw portion 33 in the approaching direction. Further, the grip portion 32 releases the grip of the electric wire 11 by moving in the direction in which the grip claw portion 33 is separated. The grip portion 32 is reciprocated along the axial direction of the gripped electric wire 11.

The straightening mechanism 40 has a support portion 41 and a straightening portion 42. The straightening portion 42 is supported by the supporting portion 41. The straightening portion 42 is rotatably supported with respect to the supporting portion 41 about the horizontal axis. The rotation axis of the support portion 41 is coaxial with the axis of the electric wire 11 gripped by the grip portion 32 constituting the grip mechanism 30. That is, the straightening portion 42 is rotatable about the axis of the electric wire 11 gripped by the grip portion 32.

As shown in FIG. 3, the straightening portion 42 rotatably supported by the support portion 41 is rotated to the left and right within a range of about 90 degrees by a rotation driving unit (not shown). Specifically, the straightening section 42 is centered on the axis of the electric wire 11 and is shown in one direction (direction of arrow A in FIG. 3A) and FIG. 3B as shown in FIG. 3A. As shown above, it is rotated in the other direction (direction of arrow B in FIG. 3B).

As shown in FIG. 4, the straightening portion 42 has a separator 50 and a guide member 60. The separator 50 has a horizontal separator 51 extending in the horizontal direction and a vertical separator 52 extending in the vertical direction, and the vertical separator 52 is orthogonal to the horizontal separator 51 and is arranged in a cross shape. These horizontal separator 51 and vertical separator 52 each have tapered portions 51a and 52a formed in a tapered shape whose thickness gradually decreases toward the tip.

The guide member 60 has a pair of horizontal guide members 61 and a pair of vertical guide members 62. The pair of lateral guide members 61 are slidable in the directions of being close to each other and being separated from each other. Further, the pair of vertical guide members 62 can slide in directions close to and apart from each other. The vertical guide member 62 is formed with a relief recess 63 that opens on opposite sides to each other. In the relief recess 63 of the vertical guide member 62, the horizontal separator 51 and the vertical separator 52 constituting the separator 50 can be accommodated. Further, the horizontal guide member 61 can be inserted and removed from the relief recess 63 of the vertical guide member 62.

In the straightening portion 42, a portion surrounded by the horizontal guide member 61 and the vertical guide member 62 is divided into four terminal accommodating portions 71 by the horizontal guide member 61 and the vertical guide member 62 of the separator 50. In the straightening mechanism 40, the grip portion 32 of the gripping mechanism 30 grips the electric wire 11 and moves to the straightening mechanism 40, so that the terminal 21 attached to each core wire 13 of the electric wire 11 is inserted into each terminal accommodating portion 71. It is packed and placed. The straightening portion 42 has a abutting plate 73 on the back side of the terminal accommodating portion 71. The tip of the terminal 21 to be inserted into the terminal accommodating portion 71 is abutted against the abutting plate 73. The terminal 21 is positioned in the axial direction when its tip is abutted against the abutting plate 73.

Next, a method of straightening the electric wire 11 using the electric wire straightening device 100 will be described.
5A and 5B are views showing a process of correcting the posture of a terminal attached to a core wire by using an electric wire straightening device, and FIGS. 5A to 5D are schematic side surfaces of the end portions of the electric wires, respectively. It is a figure and the schematic front view.

As shown in FIG. 5A, in the electric wire 11 having a plurality of core wires 13 having terminals 21 attached to the ends, for example, the core wire 13 extends so as to be separated from the axis of the electric wire 11, and the posture of the terminal 21 May be tilted and scattered.

In this way, the electric wires 11 in a state where the postures of the terminals 21 are dispersed are accommodated in the electric wire accommodating portion 31 of the gripping mechanism 30 of the electric wire straightening device 100. Then, in the gripping mechanism 30, the gripping portion 32 is driven and the gripping claw portion 33 moves in a direction close to each other, and the vicinity of the end portion of the electric wire 11 is sandwiched between the gripping claw portions 33 and gripped.

The gripping mechanism 30 moves toward the correction mechanism 40. As a result, as shown in FIG. 5B, the terminal 21 attached to each core wire 13 of the electric wire 11 is inserted into the terminal accommodating portion 71 of the straightening portion 42. As a result, in the electric wire 11, the terminal 21 attached to each core wire 13 is distributed vertically and horizontally by the horizontal separator 51 and the vertical separator 52 of the separator 50 of the straightening portion 42. At this time, the terminal 21 is positioned in the axial direction by the tip of the terminal 21 being abutted against the abutting plate 73.

As shown in FIG. 5 (c), the pair of horizontal guide members 61 of the straightening portion 42 moves in the proximity direction, and the pair of vertical guide members 62 move in the proximity direction. As a result, the terminal 21 is pressed against the vertical separator 52 by the horizontal guide member 61, and both side surfaces are sandwiched between the vertical separator 52 and the horizontal guide member 61. Further, the terminal 21 is pressed against the horizontal separator 51 by the vertical guide member 62, and the upper and lower surfaces are sandwiched between the horizontal separator 51 and the vertical guide member 62. As a result, each terminal 21 is held in a state of being aligned in a posture along the axis of the electric wire 11.

Next, the straightening portion 42 is rotated with respect to the support portion 41 in one direction (A direction in FIG. 5 (c)) and another direction (B direction in FIG. 5 (c)). As a result, the terminal 21 held by the straightening portion 42 is rotated around the axis of the electric wire 11, and the core wire 13 drawn from the electric wire 11 is twisted to remove the habit. It is preferable that the rotation of the straightening portion 42 is repeated a plurality of times.

After that, the pair of horizontal guide members 61 of the straightening portion 42 moves in the separating direction, the pair of vertical guide members 62 moves in the separating direction, and the gripping mechanism 30 moves in the direction away from the straightening mechanism 40. As a result, each terminal 21 whose posture of the electric wire 11 is corrected is pulled out from the terminal accommodating portion 71 of the straightening portion 42. Further, the gripping claws 33 of the gripping portion 32 move in a direction in which they are separated from each other, and the electric wire 11 can be taken out from the gripping mechanism 30.

As shown in FIG. 5D, in the electric wire 11, the terminals 21 attached to the core wires 13 are aligned in a posture along the axis of the electric wire 11. Therefore, according to the electric wire 11, a plurality of terminals 21 can be inserted into the terminal accommodating chamber of the housing at the same time and easily mounted.

As described above, according to the electric wire straightening method and the electric wire straightening device 100 according to the present embodiment, the separator 50 is arranged between the terminals 21 mounted on the core wire 13 drawn from the end of the sheath 19. Then, the separator 50 is rotated relative to one and the other alternately about the axis of the electric wire 11 with respect to the electric wire 11. As a result, the core wire 13 drawn from the electric wire 11 can be twisted to remove the habit, and the posture of the terminal 21 mounted on the core wire 13 can be corrected at the same time and easily aligned.

Therefore, the work of inserting the terminal 21 into the terminal accommodating chamber of the housing can be smoothly performed, and for example, the work of attaching the terminal 21 to the housing can be easily automated.

For example, in the case of an electric wire 11 having four core wires 13, a cross-shaped separator 50 having a horizontal separator 51 and a vertical separator 52 is arranged between the terminals 21 mounted on the four core wires 13. The cross-shaped separator 50 is rotated relative to one and the other alternately about the axis of the electric wire 11 with respect to the electric wire 11. As a result, the postures of the terminals 21 attached to the four core wires 13 can be corrected at the same time and easily aligned.

Moreover, in a state where the terminal 21 is pressed against the separator 50 by the guide member 60 and held, the separator 50 is rotated relative to one side and the other side with respect to the electric wire 11 around the axis of the electric wire 11. Therefore, the postures of the respective terminals 21 can be corrected so as to be aligned in the same direction.

In the above embodiment, the case where the terminals 21 of the electric wire 11 having the four core wires 13 to which the terminals 21 are mounted is aligned is illustrated, but the number of the core wires 13 is not limited to four, and for example, two or three. It may be a book. In the case of the electric wire 11 having two core wires 13, the horizontal separator 51 and the vertical guide member 62 may be removed, and the terminal 21 may be sandwiched between the vertical separator 52 and the horizontal guide member 61 for alignment. Even if the number of core wires 13 is two, the cross-shaped separator 50 may be used as in the case of four core wires.

Further, in the electric wire straightening device 100, when the terminal 21 attached to each core wire 13 is a male terminal having a tab, the abutting plate 73 of the straightening portion 42 has a relief portion through which the tab of the terminal 21 is inserted. It will be changed for the male terminal that has.

The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

Here, the features of the electric wire straightening method and the electric wire straightening device according to the above-described embodiment of the present invention are briefly summarized and listed below in [1] to [4], respectively.
[1] A wire straightening method for correcting the posture of the terminal (21) in a wire (11) in which a plurality of core wires (13) to which the terminal (21) is mounted are bundled by a sheath (19).
A separator (50) is arranged between the terminals (21) attached to the core wire (13).
The separator (50) is rotated relative to one and the other alternately about the axis of the electric wire (11) with respect to the electric wire (11).
An electric wire straightening method characterized by that.

[2] The cross-shaped separator (50) is inserted between the terminals (21) attached to the two to four core wires (13) drawn from the end of the sheath (19). Place with
The cross-shaped separator (50) with respect to the electric wire (11) is rotated relative to one and the other alternately about the axis of the electric wire (11).
The electric wire straightening method according to the above [1].

[3] The terminal (21) is pressed against the separator (50) by the guide member (60).
The separator (50) is rotated with respect to the electric wire (11) together with the guide member (60) relative to one and the other alternately about the axis of the electric wire (11).
The electric wire straightening method according to the above [1] or [2].

[4] An electric wire straightening device (100) for correcting the posture of the terminal (21) in the electric wire (11) in which a plurality of core wires (13) to which the terminal (21) is attached are bundled by a sheath (19).
A grip portion (32) that grips the electric wire (11), and a grip portion (32).
A straightening having a separator (50) arranged between the terminals (21) attached to the core wire (13) drawn from the end of the electric wire (11) gripped by the grip portion (32). Part (42) and
A support portion (41) that alternately rotates the straightening portion (42) to one side and the other side around the axis of the electric wire (11) gripped by the gripping portion (32).
To prepare
An electric wire straightening device characterized by that.

11 Wire 13 Core wire 19 Sheath 21 Terminal 32 Grip part 41 Support part 42 Straightening part 50 Separator 60 Guide member 100 Wire straightening device

Claims (4)

It is an electric wire straightening method for correcting the posture of the terminal in an electric wire in which a plurality of core wires to which terminals are attached are bundled with a sheath.
A separator is placed between the terminals mounted on the core wire, and the separator is placed between the terminals.
With respect to the electric wire, the separator is rotated relative to one side and the other side with respect to the axis of the electric wire.
An electric wire straightening method characterized by that. The cross-shaped separator is inserted and arranged between the terminals attached to the two to four core wires drawn out from the ends of the sheath.
The cross-shaped separator with respect to the electric wire is rotated relative to one side and the other side with respect to the axis of the electric wire.
The electric wire straightening method according to claim 1. The terminal is pressed against the separator by a guide member,
The separator is rotated with respect to the electric wire together with the guide member, relative to one side and the other side with respect to the axis of the electric wire.
The electric wire straightening method according to claim 1 or 2, wherein the method is characterized by the above. It is an electric wire straightening device that corrects the posture of the terminal in an electric wire in which a plurality of core wires to which terminals are attached are bundled by a sheath.
A grip portion that grips the electric wire and
A straightening portion having a separator arranged between the terminals attached to the core wire drawn from the end of the electric wire gripped by the grip portion, and a straightening portion.
A support portion that alternately rotates the straightening portion to one side and the other side around the axis of the electric wire gripped by the gripping portion, and a support portion.
To prepare
An electric wire straightening device characterized by that.

Images