JP6678048B2 - Wire twisting device - Google Patents

Description

  The present invention relates to an electric wire twisting device for twisting a set of electric wires.

  Conventionally, an electric wire twisting device for twisting a first electric wire and a second electric wire has been known. For example, Patent Document 1 discloses that while pulling out one end of a first material single wire wound on a first bobbin and one end of a second material single wire wound on a second bobbin in a direction opposite to the rotation and revolution mechanism. A twisted electric wire twisting device is disclosed.

  Further, for example, in Patent Literature 2, in a state where each of the pair of wires is restrained by independently applying a rotational force about the center axis of the wire while independently gripping one end of each of the pair of wires, An electric wire twisting device that performs twisting by rotating collectively is disclosed.

JP-A-2-44615 JP 2009-129729 A

  However, in the wire twisting device of Patent Literature 1, in order to twist the wires while pulling them out, it is necessary to perform a cutting process after twisting to obtain wires of a predetermined length. If such processing is performed after the production of the twisted wire, the cutting processing becomes complicated. Specifically, first, a step of locating a cut portion on the wire drawing side is required. Next, on the side opposite to the drawer side, since the twisted portion is formed up to the end of the electric wire, the twisted portion is cut. In order to avoid the cutting of the twisted portion, after the twisting operation is completed, it is necessary to perform an operation of separately pulling out the wire without twisting, which also complicates control. Further, in the electric wire twisting device of Patent Document 2, the rotation mechanism that applies a rotating force to each electric wire around the central axis of the electric wire and the revolution mechanism that rotates the pair of electric wires collectively are driven by the driving force of the same driving source. Therefore, it is difficult to separately drive the rotation mechanism and the revolution mechanism. There are various types of wires to be twisted, such as a thick wire or a thin wire, and a thick or thin coating of a core wire. Therefore, if only the rotation mechanism and the revolving mechanism can be rotated collectively, it becomes difficult to realize appropriate twisting according to the specifications of various electric wires.

  The present invention has been made in view of such a point, and an object thereof is to easily manufacture a twisted electric wire from an electric wire subjected to a cutting treatment at both ends, and to realize appropriate twisting according to various electric wire specifications. The object of the present invention is to provide an electric wire twisting device capable of performing the following.

  The wire twisting device according to the present invention is a wire twisting device that has a core wire and a coating that covers the periphery of the core wire, and twists a plurality of wires that have been subjected to a cutting process at both ends. A first rotary clamp rotatable while holding one end of the electric wire, a second rotary clamp rotatable while holding one end of the plurality of electric wires, and the other end of the plurality of electric wires A holding clamp for holding a portion and one end of the plurality of electric wires, wherein the first rotating clamp and the second rotating clamp are rotated in one direction around a wire axis or in a direction opposite to the one direction. A first rotary actuator, provided on one end side of the plurality of wires, for rotating the first rotary clamp and the second rotary clamp collectively in the one direction or the reverse direction around a wire axis; Two-turn actuation And a mediator and, the.

  ADVANTAGE OF THE INVENTION According to the electric wire twisting apparatus which concerns on this invention, the 1st rotation clamp or the 2nd rotation clamp hold | maintains one end part of the some electric wire in which both ends were cut, and hold | maintains the other end part of the said electric wire by a holding clamp. Twisting can be performed in the state of being set. Therefore, there is no need to twist the wires while pulling them out. Therefore, according to the present invention, there is no need to perform the wire cutting process after the twisting. With this, by performing the twisting on the wire that has been subjected to the cutting process at both ends in advance, the conventional complicated process of performing the cutting process after the twisting as described above is eliminated. It can be easily manufactured. Further, a first rotary actuator for rotating the first rotary clamp and the second rotary clamp around the axis of the electric wire (hereinafter, such rotation may be referred to as a rotation of the electric wire), and the first rotary actuator Separately, a second rotary actuator is provided for rotating the first rotary clamp and the second rotary clamp collectively around the axis of the electric wire (hereinafter, such rotation may be referred to as the revolution of the electric wire). . Thereby, the rotation and the revolution of the electric wire can be controlled separately and independently. This makes it possible to realize appropriate twisting according to the specifications of various electric wires having a thick wire, a thin wire, a thick film or a thin film coating.

  According to a preferred aspect of the present invention, a first rotation shaft connected to the first rotation actuator, a first gear connected to the first rotation shaft, and a rotation receiving a driving force of the first gear A driving gear, a second gear meshed with the driving gear and connected to the first rotating clamp, and a third gear meshed with the driving gear and connected to the second rotating clamp. I have.

  According to the above aspect, the driving force of the first rotary actuator can be simultaneously transmitted to the second gear and the third gear via the driving gear. Thus, there is no need to separately prepare a drive source for driving the second gear and a drive source for driving the third gear.

  According to another preferred aspect of the present invention, a holding portion that holds the first rotation clamp and the second rotation clamp, one end is connected to the second rotation actuator, and the other end is connected to the holding portion. A second rotation shaft.

  According to the above aspect, the first rotary clamp and the second rotary clamp can be collectively rotated (or revolved) by the second rotary shaft via the holding unit.

  According to another preferred aspect of the present invention, the second rotary actuator collectively performs the first rotary clamp and the second rotary clamp together with the first rotary clamp and the second rotary clamp by the first rotary actuator. The rotation clamp is configured to rotate in a direction opposite to the rotation direction.

  When only revolving an electric wire, a force acts on the electric wire in a direction opposite to the direction of the revolving (that is, a direction in which the torsion caused by the revolving motion is released). I can't get it. On the other hand, according to the above aspect, by rotating the wire in the direction opposite to the direction of revolution, the force acting on the wire, that is, the force of the wire to return to the original state from the twisted state is canceled. Can be. Thereby, it is possible to suppress or prevent a decrease in the adhesion of the electric wire.

  According to another preferred aspect of the present invention, the holding clamp is configured to be rotatable, provided on the other end side of the plurality of electric wires, and the holding clamp is connected to the first rotation actuator by the first rotation actuator. A third rotating actuator that rotates in a direction opposite to a rotating direction of the rotating clamp and the second rotating clamp, and a third rotating actuator that is provided on the other end side of the plurality of wires, and that holds the holding clamp by the third rotating actuator. A fourth rotation actuator that rotates in a direction opposite to the rotation direction.

  According to the above aspect, twisting at a uniform pitch is realized from one end of the twisted portion of the twisted wire to the center of the twisted wire and from the other end of the twisted portion of the twisted wire to the center of the twisted wire. be able to. Further, the twisting processing time can be significantly reduced as compared with a case where only one end of the first electric wire and the second electric wire are rotated.

  Advantageous Effects of Invention According to the present invention, it is possible to provide an electric wire twisting device that can easily manufacture a twisted electric wire from an electric wire having both ends cut and that can realize appropriate twisting according to various electric wire specifications. .

It is a perspective view of an electric wire twisting device concerning one embodiment of the present invention. It is a block diagram showing a control system of a control device. (A)-(c) is a timing chart showing the operation timing of each rotary actuator. It is a figure which shows a twist electric wire typically.

  FIG. 1 is a perspective view showing an electric wire twisting device 1 according to one embodiment of the present invention. In the following description, the right, left, upper, and lower portions of FIG. 1 are referred to as front, rear, left, and right, respectively, unless otherwise specified. Thereby, the right side and the left side in FIG. 1 are the front side and the rear side, respectively. The electric wire twisting device 1 automatically and continuously manufactures a twisted electric wire by twisting two electric wires having a predetermined length. Hereinafter, components having the same function are denoted by the same reference numerals.

  As shown in FIG. 1, the electric wire twisting device 1 includes a first rotating clamp 2a, a second rotating clamp 2b, a third rotating clamp 2c, and a fourth rotating clamp 2d. Further, the electric wire twist device 1 includes a first rotary actuator 3a, a second rotary actuator 3b, a third rotary actuator 3c, and a fourth rotary actuator 3d. In this embodiment, a motor may be used as each of the rotary actuators. However, the type of the rotary actuator is not particularly limited, and another actuator such as a cylinder may be used. FIG. 1 shows a state before a set of a first electric wire C1 and a second electric wire C2, which have been subjected to an end treatment such as a coating stripping process or a terminal punching process, before being twisted by the electric wire twisting device 1. Have been. FIG. 4 shows a twisted electric wire CT manufactured by twisting the first electric wire C1 and the second electric wire C2 by the electric wire twisting device 1. As shown in FIG. 4, the first electric wire C <b> 1 and the second electric wire C <b> 2 have a core wire 151 and a covering 152 that covers the periphery of the core wire 151. The core 151 is made of a conductor such as a metal, and the coating 152 is made of an insulating material such as a vinyl resin.

  As shown in FIG. 1, the second rotary clamp 2b is provided to the right of the first rotary clamp 2a. The fourth rotation clamp 2d is provided to the right of the third rotation clamp 2c. The third rotation clamp 2c and the fourth rotation clamp 2d are provided behind the first rotation clamp 2a and the second rotation clamp 2b. The first rotary clamp 2a is configured to be rotatable by receiving a rotational force of a gear 16 described later while holding one end (that is, a front end) of the first electric wire C1. The second rotary clamp 2b is configured to be rotatable by receiving a rotational force of a gear 17 described later while holding one end (that is, a front end) of the second electric wire C2. On the other hand, the third rotary clamp 2c is configured to be rotatable by receiving the rotational force of the gear 17 (that is, the rear gear 17) while holding the other end (that is, the rear end) of the first electric wire C1. . The fourth rotary clamp 2d is configured to be rotatable by receiving the rotational force of the gear 16 (that is, the rear gear 16) while holding the other end (that is, the rear end) of the second electric wire C2. The rotation axis of the first rotation clamp 2a and the rotation axis of the second rotation clamp 2b are parallel, and the rotation axis of the third rotation clamp 2c and the rotation axis of the fourth rotation clamp 2d are parallel. Each of the rotary clamps 2a to 2d includes a pair of grip arms 22 that are configured to be openable and closable. The grip arm 22 is configured to be rotatable between a holding position for holding the first electric wire C1 or the second electric wire C2 and a release position for releasing the holding. The opening / closing operation of the grip arm 22 is performed by a grip actuator 24 composed of, for example, an air cylinder or a hydraulic cylinder.

  The second rotary actuator 3b is provided below the first rotary actuator 3a. The fourth rotary actuator 3d is provided below the third rotary actuator 3c. The third rotary actuator 3c and the fourth rotary actuator 3d are provided behind the first rotary actuator 3a and the second rotary actuator 3b. The first rotary actuator 3a independently controls the first rotary clamp 2a and the second rotary clamp 2b in one direction (eg, clockwise in a side view) or in the opposite direction (eg, counterclockwise in a side view). Direction). The second rotation actuator 3b rotates the first rotation clamp 2a and the second rotation clamp 2b collectively in the one direction or the opposite direction. The third rotation actuator 3c rotates the third rotation clamp 2c and the fourth rotation clamp 2d independently in one direction or in the opposite direction. The third rotation actuator 3c rotates the third rotation clamp 2c and the fourth rotation clamp 2d in a direction opposite to the rotation direction of the first rotation clamp 2a and the second rotation clamp 2b by the first rotation actuator 3a. The fourth rotation actuator 3d rotates the third rotation clamp 2c and the fourth rotation clamp 2d collectively in one direction or in the opposite direction. The fourth rotation actuator 3d rotates the third rotation clamp 2c and the fourth rotation clamp 2d in a direction opposite to the rotation direction of the first rotation clamp 2a and the second rotation clamp 2b by the second rotation actuator 3b.

  As shown in FIG. 1, the electric wire twisting device 1 includes a rail 4 extending in the front-rear direction, and a pair of sliders 5F and 5R provided on the front and rear, sliding on the rail 4 in a state of being engaged with the rail 4. A motor 6 connected to the slider 5F and driving the slider 5F in the front-rear direction; a holder 7F provided on the slider 5F; and a holder 7R provided on the slider 5R. The holder 7F includes a pair of walls 7a and 7b that are arranged at an interval in the front-rear direction. The holder 7R includes a pair of wall portions 7c and 7d arranged at an interval in the front-rear direction. A first rotating shaft 8 and a second rotating shaft 9 are rotatably inserted into the wall portions 7a and 7b of the holder 7F. The second rotation shaft 9 is provided below the first rotation shaft 8. The front end of the first rotation shaft 8 is connected to the first rotation actuator 3a. The first rotation shaft 8 is configured to be rotatable around the front-rear direction (clockwise or counterclockwise in side view). The front end of the second rotation shaft 9 is connected to the second rotation actuator 3b. The rear end of the second rotation shaft 9 is connected to a holding unit 15 described later. The second rotating shaft 9 is configured to be rotatable around the front-back direction. The front end of the first rotation shaft 8 and the front end of the second rotation shaft 9 are located forward of the wall 7a. The rear end of the first rotary shaft 8 and the rear end of the second rotary shaft 9 are located behind the wall 7b. A third rotating shaft 10 and a fourth rotating shaft 11 are rotatably inserted into the wall portions 7c and 7d of the holder 7R. The fourth rotation shaft 11 is provided below the third rotation shaft 10. The rear end of the third rotation shaft 10 is connected to the third rotation actuator 3c. The third rotating shaft 10 is configured to be rotatable around the front-back direction. The rear end of the fourth rotation shaft 11 is connected to the fourth rotation actuator 3d. The front end of the fourth rotating shaft 11 is connected to a holding portion 15 (that is, a holding portion 15 on the rear side) described later. The fourth rotation shaft 11 is configured to be rotatable around the front-back direction. The rear end of the third rotation shaft 10 and the rear end of the fourth rotation shaft 11 are located behind the wall 7d. The front end of the third rotation shaft 10 and the front end of the fourth rotation shaft 11 are located forward of the wall 7c.

  A gear 12 is connected to a rear end of the first rotation shaft 8. A gear 13 meshed with the gear 12 is provided below the gear 12. The gear 13 is supported by the wall 7b so as to be rotatable around the front-rear direction. A drive gear 14 meshed with the gear 13 is provided below the gear 13. The drive gear 14 is supported by the wall 7b so as to be rotatable around the front-rear direction. The drive gear 14 is connected to, for example, a block-shaped holding unit 15. The holding unit 15 holds the first rotation clamp 2a and the second rotation clamp 2b. The first rotation clamp 2a and the second rotation clamp 2b are arranged behind the holding unit 15. A gear 16 and a gear 17 meshed with the drive gear 14 are provided in front of the holding portion 15. The first gear 17 is provided on the right side of the gear 16. The gear 12, the gear 13, the drive gear 14, the gear 16, and the gear 17 are spur gears. Note that the same gear configuration as described above is also connected to the third rotating shaft 10 and the fourth rotating shaft 11, and a description thereof will be omitted.

  Next, a method of independently rotating (ie, rotating) the first electric wire C1 and the second electric wire C2 will be described. The electric wire twisting device 1 includes a control device 60 as shown in FIG. The control device 60 controls the operations of the first rotary actuator 3a, the second rotary actuator 3b, the third rotary actuator 3c, and the fourth rotary actuator 3d. The configuration of the control device 60 is not particularly limited, and may be, for example, a computer including a CPU, a RAM, a ROM, and the like. When rotating the first electric wire C1 and the second electric wire C2, the first rotary actuator 3a and the third rotary actuator 3c operate in FIG. In FIG. 1, when the first rotation shaft 8 is rotated by the first rotation actuator 3a in a rotation direction R1 (a counterclockwise direction when viewed from the rear to the front), the gear 12 is rotated accordingly. As a result, the gear 13 rotates in the rotation direction R2 opposite to the rotation direction R1. Accordingly, the drive gear 14 rotates in the rotation direction R1. Thereby, the gear 16 and the gear 17 rotate in the rotation direction R2. Therefore, the first rotation clamp 2a and the second rotation clamp 2b rotate in the rotation direction R2. On the other hand, with the operation of the first rotary actuator 3a, the third rotary shaft 3 is rotated in the rotation direction R2 by the third rotary actuator 3c, so that the third rotary clamp 2c and the fourth rotary clamp 2d rotates in the rotation direction R1. Thereby, the first electric wire C1 is twisted around the axis of the first electric wire C1, and the second electric wire C2 is twisted around the axis of the second electric wire C2.

  Subsequently, a method of twisting the first wire C1 and the second wire C2 by rotating (or revolving) the first wire C1 and the second wire C2 collectively will be described. From the viewpoint of improving the adhesion of each wire by suppressing the twisting of the wires, which occurs when only the wires revolve, the direction of the revolution of the first wire C1 and the second wire C2 is determined by the rotation of these wires. Direction. When revolving the first electric wire C1 and the second electric wire C2, the second rotary actuator 3b and the fourth rotary actuator 3d operate in FIG. In FIG. 1, when the second rotation shaft 9 is rotated in the rotation direction R2 by the second rotation actuator 3b, the first rotation clamp 2a and the second rotation clamp 2b held by the holding unit 15 (that is, the front holding unit 15). Rotate collectively in the rotation direction R2. On the other hand, when the fourth rotation shaft 11 is rotated in the rotation direction R1 by the fourth rotation actuator 3d with the operation of the second rotation actuator 3b, the third holding portion 15 (that is, the holding portion 15 on the rear side) holds The rotation clamp 2c and the fourth rotation clamp 2d rotate collectively in the rotation direction R1. Thereby, the first electric wire C1 and the second electric wire C2 are twisted, and the twisted electric wire CT (see FIG. 4) is manufactured. When the first wire C1 and the second wire C2 are twisted, their apparent length, that is, the length of the twisted wire CT becomes shorter than the original length of the first wire C1 and the second wire C2. . Therefore, the slider 5F moves rearward (that is, in a direction approaching the slider 5R) by the operation of the motor 6. Thereby, the first rotary clamp 2a and the second rotary clamp 2b move in a direction approaching the third rotary clamp 2c and the fourth rotary clamp 2d. The front end of the second rotating shaft 9 is inserted into the driving gear 14, and the driving gear 14 rotates together with the second rotating shaft 9. Thereby, at the time of revolution, the first rotating shaft 8 follows the rotation of the second rotating shaft 9 and rotates via the gears 12 and 13. The same applies to the fourth rotation shaft 11. Note that, instead of the motor 6, an air cylinder, a spring, or the like can be applied as a drive source. If the first electric wire C1 and the second electric wire C2 are set in a state where the electric wires are loosened in advance and a margin is provided, the motor 6 (that is, the backward movement of the slider 5F by the motor 6) is not essential. Absent.

  Next, operation timings of the rotary actuators 3a to 3d, in other words, rotation and revolving timings of the first electric wire C1 and the second electric wire C2 will be described. As shown in FIG. 3A, the first rotary actuator 3a and the third rotary actuator 3c are operated at time t1. Thereafter, at time t3 before time t2 at which the operations of the first rotary actuator 3a and the third rotary actuator 3c end, the second rotary actuator 3b and the fourth rotary actuator 3d are operated. According to the timing chart of FIG. 3A, after the rotation of the first electric wire C1 and the second electric wire C2 starts, the revolution of these electric wires starts. Specifically, before terminating the operations of the first rotary actuator 3a and the third rotary actuator 3c, the operations of the second rotary actuator 3b and the fourth rotary actuator 3d are started. In addition, each rotation speed of the first rotation actuator 3a and the third rotation actuator 3c (that is, the rotation speed when rotating the electric wire) and each rotation speed of the second rotation actuator 3b and the fourth rotation actuator 3d (that is, the electric wire Is controlled separately. Depending on the difference in the thickness of the coating 152 (see FIG. 4), the untwisting may occur due to the elastic force after twisting. Therefore, when the return of the twist is likely to occur, it is possible to perform control such as increasing the number of rotations of the first rotary actuator 3a and the third rotary actuator 3c.

Further, as shown in FIG. 3B, after operating the first rotary actuator 3a and the third rotary actuator 3c at time t1, the operations may be ended at time t2 . Thereafter, at time t4, the second rotary actuator 3b and the fourth rotary actuator 3d are operated. According to the timing chart of FIG. 3B, after the rotation of the first electric wire C1 and the second electric wire C2 is completed, the revolutions of these electric wires are started. Further, as shown in FIG. 3C, the first rotation actuator 3a and the third rotation actuator 3c may be operated at time t1, and the second rotation actuator 3b and the fourth rotation actuator 3d may be operated at the same time. According to the timing chart of FIG. 3C, the revolution of the first electric wire C1 and the second electric wire C2 starts at the same time as the rotation of the electric wires.

  As described above, according to the electric wire twisting device 1 of the present embodiment, one end and the other end of the first electric wire C1 having both ends cut are processed by the first rotary clamp 2a and the third rotary clamp 2c, respectively. The one end and the other end of the second electric wire C2 that has been held and whose both ends have been cut are held by the second rotary clamp 2b and the fourth rotary clamp 2d, respectively. Twisting can be performed while holding such an electric wire. Therefore, there is no need to twist the wires while pulling them out. Therefore, there is no need to perform a wire cutting process after the twisting. As a result, by twisting the wire that has been subjected to the cutting process at both ends in advance, the conventional complicated process of performing the cutting process after the twisting as described above is eliminated, so that the twisted wire CT Can be easily manufactured. Further, a first rotary actuator 3a for rotating the first rotary clamp 2a and the second rotary clamp 2b around the wire axis, and a first rotary clamp 2a and a second rotary clamp 2b separately from the first rotary actuator 3a. And a second rotary actuator 3b that rotates the wire around the wire axis at a time. Thereby, the rotation and the revolution of the electric wire can be controlled separately and independently. This makes it possible to realize appropriate twisting according to the specifications of various electric wires having a thick wire, a thin wire, a thick film or a thin film coating.

  Further, according to the electric wire twisting device 1 of the present embodiment, the driving force of the first rotary actuator 3a can be simultaneously transmitted to the gears 16 and 17 via the driving gear 14. Thus, there is no need to separately prepare a driving source for driving the gear 16 and a driving source for driving the gear 17. The same effect is obtained for the third rotary actuator 3c.

  Further, the second rotating shaft 9 is connected to the front holding portion 15 that holds the first rotating clamp 2a and the second rotating clamp 2b, and the rear holding that holds the third rotating clamp 2c and the fourth rotating clamp 2d. The fourth rotating shaft 11 was connected to the portion 15. Thereby, the first rotary clamp 2a and the second rotary clamp 2b can be rotated (that is, revolved) collectively by the second rotary shaft 9, and the third rotary clamp 2c and the fourth rotary clamp can be rotated by the fourth rotary shaft 11. 2d can be revolved collectively.

  Further, according to the electric wire twisting device 1 of the present embodiment, the direction of revolution of the first electric wire C1 and the second electric wire C2 is opposite to the direction of rotation of these electric wires. When only the electric wire revolves, a force acts on the electric wire in a direction opposite to the direction of the orbit (that is, a direction in which the torsion is released), and thus the adhesion of the electric wire is reduced. On the other hand, according to the present embodiment, by rotating the wire in the direction opposite to the direction of revolution, the force acting on the wire, that is, the force of the wire to return to the original state from the twisted state is canceled. be able to. Thereby, it is possible to suppress or prevent a decrease in the adhesion of the electric wire.

  Further, according to the electric wire twisting device 1 of the present embodiment, the first rotary actuator 3a and the second rotary actuator 3b are provided on the front end side of the first electric wire C1 and the second electric wire C2, and the rear end side of these electric wires is provided. Are provided with a third rotary actuator 3c and a fourth rotary actuator 3d. Thereby, from the front end CTf of the twisted portion of the twisted wire CT (see FIG. 4) to the center of the twisted wire CT and from the rear end CTr of the twisted portion of the twisted wire CT (see FIG. 4) to the twisted portion. Twisting at a uniform pitch can be realized over the center of the electric wire CT. As shown in FIG. 4, for example, the twist pitch P1 is substantially equal to the twist pitch P2. In addition, compared to a case where only one end of the first electric wire C1 and the second electric wire C2 is rotated, the processing time for twisting can be greatly reduced.

  As described above, the embodiments of the present invention have been described. However, the present invention is not limited to the above-described embodiments, and can be implemented in the following modified examples.

  In the above embodiment, the other end of the first electric wire C1 and the other end of the second electric wire C2 are configured to be individually held by the third rotary clamp 2c and the fourth rotary clamp 2d, but the present invention is not limited to this. It is not something to be done. The other end of the first electric wire C1 and the other end of the second electric wire C2 may be clamped to one unit body.

  In the above embodiment, the case where two electric wires, that is, the first electric wire C1 and the second electric wire C2, are twisted as a plurality of electric wires has been described, but the number of twisted electric wires may be three or more. In this case, the number of gears transmitting the rotational force of the first to fourth rotary actuators 3a to 3d can be appropriately changed according to the number of electric wires used for twisting.

  In the above-described embodiment, the wires at both ends are stripped in advance before the twisting, and the wires that have been subjected to the so-called end processing such as terminal punching are twisted. However, the present invention is not limited to this. Twisting can be applied to an electric wire that has been cut at least at both ends, for example, an electric wire before stripping the coating at both ends.

  In the above-described embodiment, the rotation clamp and the mechanism for rotating the rotation clamp are provided on both end sides of the first electric wire C1 and the second electric wire C2, respectively, but the rotation clamp and the mechanism are provided only on one end side. May be provided.

  Further, in the above embodiment, the third rotary clamp 2c and the fourth rotary clamp 2d are configured to be rotatable, respectively, but the present invention is not limited to this. The third rotation clamp 2c and the fourth rotation clamp 2d may be fixed so as not to rotate. Of course, if the first rotating clamp 2a and the second rotating clamp 2b have the above-described function relating to rotation, the rotating functions of the third rotating clamp 2c and the fourth rotating clamp 2d do not rotate independently. It may have only the function of rotating (revolving) collectively.

  Further, in the above embodiment, the gear 13 is provided between the gear 12 and the drive taper gear 14, but the present invention is not limited to this. The gear 12 and the drive taper gear 14 may be engaged without providing the gear 13. In this case, instead of meshing the gear 12 with the tapered drive gear 14, the rotational force of the gear 12 may be transmitted to the tapered drive gear 14 via a transmission means such as a belt or a chain.

DESCRIPTION OF SYMBOLS 1 Electric wire twist apparatus 2a 1st rotation clamp 2b 2nd rotation clamp 2c 3rd rotation clamp (holding clamp)
2d 4th rotation clamp (holding clamp)
3a 1st rotary actuator 3b 2nd rotary actuator 3c 3rd rotary actuator 3d 4th rotary actuator 4 rail 6 motor 8 1st rotary shaft 9 2nd rotary shaft 10 3rd rotary shaft 11 4th rotary shaft 12 gears (1st gear) )
14 Drive gear 15 Holder 16 Gear (second gear)
17th gear (3rd gear)
22 grip arm 60 control device 151 core wire 152 coating C1 first wire C2 second wire CT twisted wire

Claims (4)

An electric wire twisting device for twisting a plurality of electric wires, each having a core wire and a coating covering the periphery of the core wire, and having been subjected to a cutting process at both ends,
The plurality of wires include a first wire and a second wire,
A first rotation clamp rotatable while holding one end of the first electric wire,
A second rotary clamp rotatable while holding one end of the second electric wire;
A holding clamp for holding the other end of the plurality of electric wires,
The first wire clamp and the second wire clamp are provided on one end side of the plurality of wires, and rotate the first rotary clamp and the second rotary clamp in one direction around the axis of the first wire and the second wire, or in a direction opposite to the one direction. A first rotary actuator to be driven;
A second rotary actuator provided on one end side of the plurality of electric wires, for rotating the first rotary clamp and the second rotary clamp collectively in the one direction or the reverse direction around the axis of the twisted electric wire ; ,
The holding clamp has a third rotating clamp rotatable while holding the other end of the first electric wire, and a fourth rotating clamp rotatable while holding the other end of the second electric wire. ,
The third rotation clamp and the fourth rotation clamp are provided on the other end side of the plurality of electric wires, and the third rotation clamp and the fourth rotation clamp are rotated in a direction opposite to a rotation direction of the first rotation clamp and the second rotation clamp by the first rotation actuator. A third rotary actuator for rotating,
The third rotation clamp and the fourth rotation clamp are provided at the other end of the plurality of electric wires, and the first rotation clamp and the second rotation clamp are collectively rotated by the second rotation actuator. A fourth rotation actuator for rotating in a direction opposite to the rotation direction of
An electric wire twisting device. A first rotation shaft connected to the first rotation actuator;
A first gear connected to the first rotation shaft;
A driving gear that rotates by receiving a driving force of the first gear;
A second gear meshed with the drive gear and connected to the first rotary clamp;
3. The electric wire twisting device according to claim 1, further comprising: a third gear meshed with the driving gear and connected to the second rotary clamp. 4. A holding unit that holds the first rotation clamp and the second rotation clamp;
The wire twisting device according to claim 1, further comprising: a second rotating shaft having one end connected to the second rotary actuator and the other end connected to the holding unit.   The second rotary actuator is configured to rotate the first rotary clamp and the second rotary clamp collectively in a direction opposite to a rotation direction of the first rotary clamp and the second rotary clamp by the first rotary actuator. The electric wire twisting device according to any one of claims 1 to 3, which is configured as follows.

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