JP2017168204A - Wire twisting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire twisting device capable of simply forming proper remained twist length with good accuracy.SOLUTION: A wire twisting device 1 has a first rotation clamp 2a and a third rotation clamp 2c for holding a first wire C1 and a second rotation clamp 2b and a fourth rotation clamp 2d for holding a second wire C2. The first rotation clamp 2a is arranged so that a tip of the first rotation clamp 2a has inclination to the second rotation clamp 2b on a plane view. The second rotation clamp 2b is arranged so that a tip of the second rotation clamp 2b has inclination to the second rotation clamp 2a on the plane view.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric wire twist device that twists a pair of electric wires.

  Conventionally, an electric wire twist device that twists a first electric wire and a second electric wire is known. For example, in Patent Document 1, the pair of electric wires are bundled together in a state where each end of the pair of electric wires is independently gripped and restrained by applying a rotational force around the central axis of the electric wires to each electric wire. An electric wire twisting device that twists together by rotating is disclosed.

JP 2009-129729 A

  However, in the electric wire twist device of Patent Document 1, it is difficult to form an appropriate untwisted portion at one end and the other end of the electric wire. In the case of an electric wire that has already been subjected to a cutting process, it is necessary to accurately form the desired untwisted length in order to ensure the specified electric wire length. In addition, it is not preferable to make the work complicated and the apparatus complicated.

  This invention is made | formed in view of this point, The objective is to provide the electric wire twist apparatus which can form the appropriate untwisted length easily and accurately.

  The electric wire twist apparatus according to the present invention has a core wire and a coating covering the periphery of the core wire, and twists at least two first electric wires and second electric wires that have been cut at both ends. An electric wire twist device for manufacturing a twisted electric wire, wherein the electric wire twist device is provided at a side of the first rotary clamp that is rotatable while holding one end of the first electric wire, and one end of the second electric wire. A second rotating clamp that is rotatable while holding a portion, a holding clamp that holds the other end of the first electric wire and the other end of the second electric wire, the first rotating clamp, and the second rotating clamp A first rotary actuator that rotates the wire in one direction around the wire axis, or a direction opposite to the one direction, and a second rotary actuator that rotates the first rotary clamp and the second rotary clamp at once. Before twisting the first electric wire and the second electric wire, the twisting should be performed on at least one of the one end side and the other end side of the first electric wire and the second electric wire. Each twisted part that is a part of the first electric wire and the second electric wire is in a state closer to each other than each non-twisted part that is a part of the first electric wire and the second electric wire that is not twisted. So that it is held.

  According to the wire twist device of the present invention, the twisted portion of the first electric wire and the twisted portion of the second electric wire are untwisted of the first electric wire and the second electric wire before twisting. It is hold | maintained so that it may be in the mutually close state rather than a site | part. Thereby, the twist length of the twisted electric wire can be easily and accurately increased on at least one of the one end side and the other end side of the first electric wire and the second electric wire. This makes it possible to easily form an appropriate untwisted residue with high accuracy.

  According to a preferred aspect of the present invention, the first rotary actuator is provided on one end side of the first electric wire and the second electric wire, and the second rotary actuator is one end of the first electric wire and the second electric wire. It is provided on the side of the part and on the side of the first rotary actuator.

  According to the said aspect, complication of an apparatus structure can be avoided compared with the structure which provides a 1st rotation actuator in the one end part side, and provides a 2nd rotation actuator in the other end part side.

  According to another preferred aspect of the present invention, at least one of the first rotary clamp and the second rotary clamp has a tip of the one rotary clamp inclined toward the other rotary clamp. Is provided.

  According to the above aspect, the twist of the first electric wire is arranged on at least one of the one end portion side and the other end portion side of the first electric wire and the second electric wire before twisting by arranging the rotary clamp in an inclined manner. The mating part and the twisted part of the second electric wire can be brought closer to each other than the non-twisted part of the first electric wire and the non-twisted part of the second electric wire. Thereby, the twisting length of a twist electric wire can be increased easily.

  According to another preferable aspect of the present invention, a first guide having a first insertion hole through which the first electric wire and the second electric wire are inserted, and the first electric wire and the second electric wire rather than the first guide. A second guide having a second insertion hole through which the first electric wire and the second electric wire are inserted, and at least one of the guides, wherein the diameter of the first insertion hole is The diameter of the second insertion hole is smaller than the distance between one end of the first electric wire held by the first rotary clamp and one end of the second electric wire held by the second rotary clamp. The distance between the other end portion of the first electric wire held by the clamp and the other end portion of the second electric wire held by the holding clamp is smaller.

  According to the above aspect, before the twisting, the first electric wire and the second electric wire are twisted by the first guide at the one end side of the first electric wire and the second electric wire. The non-twisted portion and the non-twisted portion of the second electric wire can be brought closer to each other. In addition, before the twisting, the second guide causes the first electric wire and the second electric wire to be twisted at the other end side of the first electric wire and the second electric wire so that the first electric wire is not twisted. It can be made the state which adjoined rather than the matching site | part and the untwisted site | part of a 2nd electric wire. Thereby, the twisting length of a twist electric wire can be increased easily.

  According to another preferred aspect of the present invention, a first rotating shaft connected to the first rotating actuator, a gear connected to the first rotating shaft, and a drive that rotates by receiving the driving force of the gear. A gear, a first taper gear meshed with the drive gear and coupled to the first rotation clamp, and a second taper gear meshed with the drive gear and coupled to the second rotation clamp. .

  According to the above aspect, the rotation axis of the first taper gear can be matched with the rotation axis of the first rotation clamp, and the rotation axis of the second taper gear can be matched with the rotation axis of the second rotation clamp. it can. As a result, even in the configuration in which the first rotation clamp and the second rotation clamp are inclined in a plan view, the first rotation clamp and the second rotation clamp are rotated around the respective rotation axes by the drive gear (that is, Rotation).

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

  According to the said aspect, a 1st rotation clamp and a 2nd rotation clamp can be rotated collectively (in other words, revolution rotation) via a holding | maintenance part with a 2nd rotating shaft.

  According to another preferred aspect of the present invention, the first rotary clamp is rotatably connected to a first shaft that is movable in the direction of the rotation axis of the first rotary clamp, and one end of the first shaft. A pair that is connected to the first link mechanism and is rotatable between a first holding position that holds one end of the first electric wire and a first release position that does not hold the one end. The first grip arm, a first biasing member that biases the first shaft so that the first grip arm moves from the first release position to the first holding position, and the first biasing member. By moving the first shaft against an urging force, the first link mechanism is rotated to rotate the first grip arm from the first holding position to the first release position. And having The second rotary clamp includes a second shaft that is movable in a rotation axis direction of the second rotary clamp, a second link mechanism that is rotatably connected to one end of the second shaft, and the second link mechanism A pair of second grip arms connected to each other and rotatable between a second holding position that holds one end of the second electric wire and a second release position that does not hold the one end, and the second grip arm Moves the second shaft against the urging force of the second urging member, and a second urging member that urges the second shaft so as to go from the second release position to the second holding position. And a second grip actuator that rotates the second link mechanism to rotate the second grip arm from the second holding position to the second release position.

  According to the above aspect, by moving the first shaft in the axial direction, one end of the first electric wire can be easily held and not held by the first grip arm, and the second shaft is moved in the axial direction. By moving, one end of the second electric wire can be easily held and not held by the second grip arm.

  According to another preferable aspect of the present invention, the first electric wire and the second electric wire are provided between the first rotary clamp and the holding clamp and between the second rotary clamp and the holding clamp. An intermediate clamp for holding the electric wire is provided.

  According to the said aspect, the part which is not twisted together in the middle part of a twist electric wire can be formed by hold | maintaining the middle part of a 1st electric wire and a 2nd electric wire with an intermediate clamp. Thereby, the length of the twisted portion can be adjusted. Thereby, the characteristic impedance of the twisted electric wire can be adjusted. Also, the twisting direction of the twisted portion on one end side of the first electric wire and the second electric wire (that is, clockwise or counterclockwise) and the twisting direction of the twisted portion on the other end side are made the same. Can be different.

  ADVANTAGE OF THE INVENTION According to this invention, the electric wire twist apparatus which can form an appropriate untwisted length simply and accurately can be provided.

It is a perspective view of the electric wire twist apparatus which concerns on 1st Embodiment of this invention. It is a partial cross section figure which shows the structure of a pair of grip arm of a 1st and 2nd rotation clamp. It is a top view which shows the state which opened the grip arm. It is a figure which shows a twist electric wire typically. It is a perspective view which shows the structure of an intermediate clamp. It is a figure which shows the twist electric wire manufactured using the intermediate clamp of FIG. It is a perspective view of the electric wire twist apparatus which concerns on 2nd Embodiment of this invention. It is a perspective view which shows a 1st guide and a 2nd guide. It is a perspective view which shows the other example of a 1st guide and a 2nd guide. It is a perspective view of the electric wire twist apparatus which concerns on the modification of this invention.

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

  As shown in FIG. 1, the electric wire twist apparatus 1 includes a first rotation clamp 2a, a second rotation clamp 2b, a third rotation clamp 2c, and a fourth rotation clamp 2d. Moreover, the electric wire twist apparatus 1 is provided with the 1st rotation actuator 3a, the 2nd rotation actuator 3b, the 3rd rotation actuator 3c, and the 4th rotation actuator 3d. In the present embodiment, a motor may be used as each rotary actuator. However, the type of the rotary actuator is not particularly limited, and other actuators such as a cylinder can be used. FIG. 1 illustrates the twisted electric wire CT (see FIG. 4) after the pair of the first electric wire C <b> 1 and the second electric wire C <b> 2 are twisted together by the electric wire twist 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 coating 152 that covers the periphery of the core wire 151. The core 151 is made of a conductor such as metal, and the coating 152 is made of an insulating material such as vinyl resin.

  As shown in FIG. 1, the second rotary clamp 2b is provided on the right side of the first rotary clamp 2a. The fourth rotation clamp 2d is provided on the right side of the third rotation clamp 2c. The third rotary clamp 2c and the fourth rotary clamp 2d are provided behind the first rotary clamp 2a and the second rotary clamp 2b. The 1st rotation clamp 2a is comprised rotatably, hold | maintaining the one end part (namely, front end part) of the 1st electric wire C1. The second rotary clamp 2b is configured to be rotatable while holding one end portion (that is, the front end portion) of the second electric wire C2. On the other hand, the 3rd rotation clamp 2c is constituted so that rotation is possible, holding the other end part (namely, rear end part) of the 1st electric wire C1. The fourth rotary clamp 2d is configured to be rotatable while holding the other end portion (that is, the rear end portion) of the second electric wire C2.

  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 is configured so that the first rotary clamp 2a and the second rotary clamp 2b are independently independent in one direction (for example, a clockwise direction when viewed from the side) or opposite to the one direction (for example, counterclockwise when viewed from the side). ). The second rotary actuator 3b rotates the first rotary clamp 2a and the second rotary clamp 2b together in the one direction or the reverse direction. Further, the third rotary actuator 3c rotates the third rotary clamp 2c and the fourth rotary 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 the 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 rotary actuator 3d rotates the third rotary clamp 2c and the fourth rotary clamp 2d in one direction or the reverse direction at once. The fourth rotation actuator 3d rotates the third rotation clamp 2c and the fourth rotation clamp 2d in the 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, a pair of sliders 5F and 5R provided on the front and rear, sliding on the rail 4 while being engaged with the rail 4. The motor 6 is connected to the slider 5F and drives the slider 5F in the front-rear direction, the holder 7F provided on the slider 5F, and the holder 7R provided on the slider 5R. The holder 7F includes a pair of wall portions 7a and 7b that are arranged at intervals in the front-rear direction. The holder 7R includes a pair of wall portions 7c and 7d that are arranged at intervals in the front-rear direction. A first rotating shaft 8 and a second rotating shaft 9 are rotatably inserted into the wall 7a and the wall 7b of the holder 7F. The second rotating shaft 9 is provided below the first rotating shaft 8. The front end of the first rotating shaft 8 is connected to the first rotating actuator 3a. The first rotating shaft 8 is configured to be rotatable in the front-rear direction (clockwise or counterclockwise in a side view). The front end of the second rotating shaft 9 is connected to the second rotating actuator 3b. The rear end of the second rotating shaft 9 is connected to a holding unit 15 described later. The second rotating shaft 9 is configured to be rotatable around the front-rear direction. In addition, the front end of the 1st rotating shaft 8 and the front end of the 2nd rotating shaft 9 are located ahead of the wall part 7a. Further, the rear end of the first rotation shaft 8 and the rear end of the second rotation shaft 9 are located behind the wall portion 7b. The third rotating shaft 10 and the fourth rotating shaft 11 are rotatably inserted through the wall 7c and the wall 7d of the holder 7R. The fourth rotation shaft 11 is provided below the third rotation shaft 10. The rear end of the third rotating shaft 10 is connected to the third rotating actuator 3c. The third rotating shaft 10 is configured to be rotatable around the front-rear direction. The rear end of the fourth rotary shaft 11 is connected to the fourth rotary 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) which will be described later. The fourth rotating shaft 11 is configured to be rotatable around the front-rear direction. Note that the rear end of the third rotary shaft 10 and the rear end of the fourth rotary shaft 11 are located behind the wall portion 7d. Moreover, the front end of the 3rd rotating shaft 10 and the front end of the 4th rotating shaft 11 are located ahead of the wall part 7c.

  A gear 12 is connected to the rear end of the first rotating 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 taper gear 14 meshed with the gear 13 is provided below the gear 13. The drive taper gear 14 is supported by the wall 7b so as to be rotatable around the front-rear direction. Further, the drive taper gear 14 is connected to, for example, a block-shaped holding portion 15. The holding part 15 holds the first rotary clamp 2a and the second rotary clamp 2b. The first rotary clamp 2 a and the second rotary clamp 2 b are disposed behind the holding unit 15. A first taper gear 16 and a second taper gear 17 that are respectively meshed with the drive taper gear 14 are provided in front of the holding portion 15. The second taper gear 17 is provided on the right side of the first taper gear 16. The drive taper gear 14, the first taper gear 16, and the second taper gear 17 are each formed in a taper shape so as to taper toward the first rotation clamp 2a and the second rotation clamp 2b in plan view. As shown in FIG. 1, the same gear configuration as described above is also connected to the third rotating shaft 10 and the fourth rotating shaft 11, and thus description thereof is omitted.

  Next, details of the rotary clamp will be described. As shown in FIG. 1, the first rotary clamp 2a is provided such that the tip of the first rotary clamp 2a is inclined toward the second rotary clamp 2b in plan view. The second rotary clamp 2b is provided such that the tip of the second rotary clamp 2b is inclined toward the first rotary clamp 2a in plan view. Similarly, as shown in FIG. 2, the third rotary clamp 2c is provided such that the tip of the third rotary clamp is inclined toward the fourth rotary clamp 2d in plan view. The fourth rotary clamp 2d is provided such that the tip of the fourth rotary clamp 2d is inclined toward the third rotary clamp 2c in plan view. Thus, by providing the adjacent rotary clamps at an inclination, the untwisted length L1 between the front end portion CTf of the twisted portion of the twisted electric wire CT and the front end portion of the first electric wire C1 in FIG. 4, and The untwisted length L2 between the front end portion CTf and the front end portion of the second electric wire C2 can be shortened. In other words, the twisting length of the twisted electric wire CT can be increased. Further, the untwisted length L3 between the rear end portion CTr of the twisted portion CT and the rear end portion of the first electric wire C1, and the untwisted length of the rear end portion CTr and the rear end portion of the second electric wire C2. Each of the lengths L4 can be shortened. In other words, the twisting length of the twisted electric wire CT can be increased.

  Since the configurations of the first rotary clamp 2a, the second rotary clamp 2b, and the fourth rotary clamp 2d are the same as the configuration of the third rotary clamp 2c, the third rotary clamp 2c will be representatively described below. As shown in FIG. 2, the third rotary clamp 2 c includes a shaft 20, a link mechanism 21, a pair of grip arms 22, a compression spring 23, and a grip actuator 24. A pressed portion 20 a having a diameter larger than that of the shaft 20 is provided at the rear end portion of the shaft 20. The shaft 20 is rotatably inserted into the holding portion 15. The rear end portion of the shaft 20 is connected to the second tapered gear 17 described above. The shaft 20 is configured to be rotatable together with the second taper gear 17. The shaft 20 can be reciprocated in the direction of the rotation axis of the third rotary clamp 2c by the operation of the grip actuator 24 described later. The front end portion of the shaft 20 is connected to the link mechanism 21. The grip arm 22 is rotatably connected to the front end portion of the link mechanism 21. The rotation axis of the shaft 20 and the rotation axis of the grip arm 22 coincide with each other. The rotation axis of the first taper gear 16 and the rotation axis of the right grip arm 22 coincide with each other. The rotation axis of the second taper gear 17 and the rotation axis of the left grip arm 22 coincide with each other. The grip arm 22 releases the holding position P1 for holding the rear end portion of the first electric wire C1 and the holding of the rear end portion (that is, does not hold the rear end portion) according to the reciprocation of the shaft 20. ) It is configured to be rotatable between the release position P2 (see FIG. 3). 2 is in the holding position P1.

  In the present embodiment, an air cylinder may be used as the grip actuator 24. However, the present invention is not limited to this, and another actuator such as a hydraulic cylinder may be used as the grip actuator 24. As shown in FIG. 2, the grip actuator 24 includes a cylinder 24a, a piston 24b provided in the cylinder 24 so as to be able to reciprocate, and a piston rod 24c provided at a front end portion of the piston 24b. Here, the compression spring 23 urges the shaft 20 so that the grip arm 22 is normally directed from the release position P2 (see FIG. 3) to the holding position P1. As shown in FIG. 3, the link mechanism 21 includes a first link 21a that is rotatably supported by the shaft 20, and a second link 21b that is rotatably supported by the first link 21a. The grip arm 22 is rotatably supported by the second link 21b. In such a configuration, as shown in FIG. 3, when the piston rod 24c moves forward, the piston rod 24c comes into contact with the pressed portion 20a. As the piston rod 24c moves further forward as it is, the shaft 20 moves obliquely forward against the urging force of the compression spring 23. At this time, the grip arm 22 moves to the release position P2 via the link mechanism 21. That is, the grip arm 22 is opened and the holding of the rear end portion of the first electric wire C1 (see FIG. 2) is released. Conversely, when the piston rod 24c moves rearward and the shaft 20 moves obliquely rearward, the grip arm 22 moves from the release position P2 to the holding position P1 (see FIG. 2) via the link mechanism 21. That is, the grip arm 22 is closed and the rear end portion of the first electric wire C1 is held. Thus, the rear end portion of the first electric wire C1 is held and released.

  Next, a method of rotating the first electric wire C1 and the second electric wire C2 independently (hereinafter, such rotation may be referred to as rotation) will be described. When the first electric wire C1 and the second electric wire C2 are rotated, the first rotary actuator 3a and the third rotary actuator 3c are operated in FIG. In FIG. 1, when the first rotary shaft 8 is rotated in the rotational direction R1 (counterclockwise direction when viewed from the rear to the front) by the first rotary actuator 3a, the gear 12 rotates accordingly. As a result, the gear 13 rotates in a rotation direction R2 that is opposite to the rotation direction R1. Accordingly, the drive taper gear 14 rotates in the rotation direction R1. Thereby, the 1st taper gear 16 and the 2nd taper gear 17 each rotate to rotation direction R2. Therefore, each of the first rotation clamp 2a and the second rotation clamp 2b rotates in the rotation direction R2. On the other hand, the third rotating shaft 10 rotates in the rotation direction R2 by the third rotating actuator 3c. Then, the gear 12 (that is, the gear 12 on the rear side) rotates accordingly. As a result, the gear 13 (that is, the rear gear 13) rotates in the rotation direction R1. Accordingly, the drive taper gear 14 (that is, the rear drive taper gear 14) rotates in the rotation direction R2. Thereby, the first taper gear 16 (that is, the first taper gear 16 on the rear side) and the second taper gear 17 (that is, the second taper gear 17 on the rear side) each rotate in the rotation direction R1. Accordingly, the third rotation clamp 2c and the fourth rotation clamp 2d rotate in the rotation direction R1, respectively. Thus, 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 electric wire C1 and the second electric wire C2 by rotating the first electric wire C1 and the second electric wire C2 together (hereinafter, such rotation may be referred to as revolution) will be described. . From the viewpoint of improving the adhesion of each electric wire by suppressing the twisting of the electric wire that occurs when only the electric wire revolves, the direction of revolution of the first electric wire C1 and the second electric wire C2 is the rotation of these electric wires. The direction opposite to The revolution of the first electric wire C1 and the second electric wire C2 may be started simultaneously with the above-described rotation, or may be started after the rotation is started. When the first electric wire C1 and the second electric wire C2 are revolved, the second rotary actuator 3b and the fourth rotary actuator 3d are operated in FIG. In FIG. 1, when the second rotary shaft 9 is rotated in the rotation direction R2 by the second rotary actuator 3b, the first rotary clamp 2a and the second rotary clamp 2b held by the holding portion 15 (that is, the holding portion 15 on the front side). Rotate together in the rotation direction R2. On the other hand, when the fourth rotating shaft 11 is rotated in the rotation direction R1 by the fourth rotating actuator 3d, the third rotating clamp 2c and the fourth rotating clamp 2d held by the holding portion 15 (that is, the holding portion 15 on the rear side) are collectively. And rotate in the rotation direction R1. Thereby, the 1st electric wire C1 and the 2nd electric wire C2 are twisted together, and twisted wire CT is manufactured. Here, when the 1st electric wire C1 and the 2nd electric wire C2 are twisted together, those apparent length, ie, the length of the twist electric wire CT, is shorter than the original length of the 1st electric wire C1 and the 2nd electric wire C2. Become. Therefore, the slider 5F moves backward (that is, the direction approaching the slider 5R) by the operation of the motor 6. Thereby, the 1st rotation clamp 2a and the 2nd rotation clamp 2b move to the direction which approaches the 3rd rotation clamp 2c and the 4th rotation clamp 2d. The front end portion of the second rotation shaft 9 is inserted into the drive taper gear 14, and the drive taper gear 14 rotates together with the second rotation 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 rotating shaft 11.

  As shown in FIG. 5, the electric wire twist device 1 may include an intermediate clamp 30. The intermediate clamp 30 holds the first electric wire C1 and the second electric wire before the first electric wire C1 and the second electric wire C2 are twisted together. The intermediate clamp 30 is provided between the first rotary clamp 2a and the third rotary clamp 2c and between the second rotary clamp 2b and the fourth rotary clamp 2d. The intermediate clamp 30 includes an intermediate clamp engaging portion 31 that can be engaged with the rail 4, a rail 32 provided on the intermediate clamp engaging portion 31 so as to extend in a direction perpendicular to the length direction of the rail 4, and a rail 32. And a pair of intermediate holding portions 33a and 33b that are slidably provided. The first electric wire C1 and the second electric wire C2 are sandwiched between the intermediate holding portion 33a and the intermediate holding portion 33b. A drive motor (not shown) is connected to the intermediate clamp engaging portion 31, and the intermediate clamp engaging portion 31 is configured to be slidable on the rail 4 by receiving the driving force of the drive motor. Thereby, the clamping position of the 1st electric wire C1 and the 2nd electric wire C2 by the intermediate | middle holding | maintenance part 33a, 33b can be adjusted to the front-back direction. Moreover, after the intermediate | middle holding | maintenance part 33a and the intermediate | middle holding | maintenance part 33b slide on the rail 32 in the direction which mutually approaches, after hold | maintaining the 1st electric wire C1 and the 2nd electric wire C1 by each rotary clamp 2a-2d, the 1st electric wire C1 And the 2nd electric wire C2 can be clamped. In this way, the twisted electric wire CT manufactured by holding the first electric wire C1 and the second electric wire C2 with the intermediate clamp 30 is formed with a non-twisted portion CTn which is a portion that is not twisted as shown in FIG. Is done.

  Here, unlike the present invention, when the adjacent clamps are not inclined and are arranged so that their rotation axes are parallel to each other, in order to shorten the untwisted length, the clamps are brought closer as much as possible. There is a need. However, since the gear connected to the clamp and rotating the clamp has a predetermined outer diameter, there is a limit in approaching the clamps. Further, in the above configuration in which the rotation axes of adjacent clamps are parallel, there is a limit in obtaining a twisted electric wire having a good characteristic impedance. On the other hand, according to the electric wire twist apparatus 1 of this embodiment, the adjacent electric clamp C1 and the second electric wire C1 that should be twisted before twisting are provided by the inclined rotary clamps being provided. Each twisted part Y1 (see FIG. 8) which is a part of the electric wire C2 is in a state closer to each other than each non-twisted part Y2 which is a part of the first electric wire C1 and the second electric wire C2 which are not twisted. be able to. In other words, the portion of the first electric wire C1 between the front end portion CTf of the twisted electric wire CT and the front end portion of the first electric wire C1 held by the first rotary clamp 2a, and the front end portion CTf of the twisted electric wire CT The maximum distance between the second electric wire C2 and the front end of the second electric wire C2 held by the second rotary clamp 2b can be reduced. Similarly, the portion of the first electric wire C1 between the rear end portion CTr of the twisted electric wire CT and the rear end portion of the first electric wire C1 held by the third rotary clamp 2c, and the rear end portion of the twisted electric wire CT. The maximum distance between the portion of the second electric wire C2 between the CTr and the rear end portion of the second electric wire C2 held by the fourth rotary clamp 2d can be reduced. Accordingly, the untwisted length L1 between the front end portion CTf of the twisted electric wire CT and the front end portion of the first electric wire C1 and the untwisted length L2 between the front end portion CTf and the front end portion of the second electric wire C2 are shortened, respectively. be able to. Moreover, the untwisted length L3 between the rear end portion of the twisted electric wire CT and the rear end portion of the first electric wire C1, and the untwisted length L4 between the rear end portion of the twisted electric wire CT and the rear end portion of the second electric wire C2, respectively. Can be shortened. As a result, the twisted length of the twisted electric wire CT can be easily and accurately increased.

  Moreover, according to the electric wire twist apparatus 1 of this embodiment, the 1st rotation actuator 3a which rotates the 1st electric wire C1 and the 2nd electric wire C2, and the 2nd rotation actuator 3b which revolves these electric wires are the front side of the said electric wire. It was made to provide in. Thereby, complication of an apparatus structure can be avoided compared with the structure which provides the 1st rotation actuator 3a in the one end part side of the said electric wire, and the 2nd rotation actuator 3b in the other end part side of the said electric wire. The same effect is produced with respect to the third rotary actuator 3c and the fourth rotary actuator 3d.

  Moreover, according to the electric wire twist apparatus 1 of this embodiment, the rotating shaft of the 1st taper gear 16 corresponds with the rotating shaft of the 1st rotating clamp 2a, and the 2nd taper gear with respect to the rotating shaft of the 2nd rotating clamp 2b. The 17 rotation axes coincide with each other. Thereby, even if the first rotary clamp 2a and the second rotary clamp 2b are inclined in plan view, the first rotary clamp 2a and the second rotary clamp 2b can be rotated around the respective rotation axes by the drive taper gear 14. It becomes possible.

  Moreover, according to the electric wire twist apparatus 1 of this embodiment, the 2nd rotating shaft 9 is connected to the holding | maintenance part 15 of the front side holding the 1st rotation clamp 2a and the 2nd rotation clamp 2b, and the 3rd rotation clamp 2c and The 4th rotating shaft 11 was connected to the holding | maintenance part 15 of the back side holding the 4th rotating clamp 2d. As a result, the first rotary clamp 2a and the second rotary clamp 2b can be collectively rotated (that is, revolved) 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 at once.

  Moreover, according to the electric wire twist apparatus 1 of this embodiment, holding | maintenance and non-holding | maintenance of the one end part of each electric wire by the grip arm 22 can be easily performed only by reciprocating the shaft 20 in each rotation clamp 2a-2d. .

  Moreover, according to the electric wire twist apparatus 1 of this embodiment, the intermediate part 30 hold | maintains the intermediate part of the 1st electric wire C1 and the 2nd electric wire C2, and forms the non-twisting part CTn in the intermediate part of the twist electric wire CT. can do. Thereby, in twisted electric wire CT, the length of the twisting part can be adjusted. Thereby, the characteristic impedance of the twisted electric wire CT can be adjusted. Further, the twisting direction of the twisted portion on the front end side of the first electric wire C1 and the second electric wire C2 and the twisting direction of the twisted portion on the rear end portion side can be made the same or different.

  Moreover, according to the electric wire twist apparatus 1 of this embodiment, the position of the non-twisted portion CTn of the twisted electric wire CT can be changed by changing the position of the intermediate clamp 30 in the length direction of the rail 4. Thereby, the characteristic impedance of the twisted electric wire CT can be adjusted.

  Moreover, according to the electric wire twist apparatus 1 of this embodiment, the middle part of the 1st electric wire C1 and the 2nd electric wire C2 is only twisted in the direction which mutually approaches the intermediate holding part 33a and the intermediate holding part 33b before twisting. Can be held. Moreover, the intermediate | middle part of the twist electric wire CT can be cancelled | released after twisting only by sliding the intermediate holding part 33a and the intermediate holding part 33b in the direction away from each other. For this reason, it becomes easy to take out twist electric wire CT. Thereby, work efficiency improves.

(Second Embodiment)
Next, the electric wire twist apparatus 1a which concerns on 2nd Embodiment is demonstrated. Similarly to the above-described wire twist device 1, the wire twist device 1a can also reduce the untwisted length of the twisted wire CT. The configuration of the electric wire twist device 1a according to the second embodiment is different from the configuration of the electric wire twist device 1 according to the above-described first embodiment in the following points. As shown in FIG. 7, the first rotary clamp 2a and the second rotary clamp 2b are not inclined in plan view, but are arranged so that the rotation axes are parallel to the front-rear direction. Similarly, the third rotation clamp 2c and the fourth rotation clamp 2d are not inclined in plan view, but are arranged so that the respective rotation axes are parallel to the front-rear direction. Further, a drive gear 14 a that is a spur gear is used instead of the drive taper gear 14, and a gear 16 a and a gear 17 a that are spur gears are used instead of the first taper gear 16 and the second taper gear 17, respectively. Further, a first guide 40 and a second guide 41 are provided. This will be described in detail below.

  As shown in FIG. 7, the first rotary clamp 2a and the second rotary clamp 2b are arranged in parallel in the front-rear direction, so that the tip of the first rotary clamp 2a and the tip of the second rotary clamp 2b are arranged. The distance is larger than that in the first embodiment described above. Therefore, the first guide 40 reduces the length of the untwisted left side of the twisted electric wire CT (that is, the first electric wire C1 and the second electric wire C2 that are not twisted together), and the second guide 41 reduces the length of the twisted electric wire CT. The untwisted length on the rear end side is reduced.

  The first guide 40 is disposed in the vicinity of the front end portion of the first electric wire C1 held by the first rotary clamp 2a and in the vicinity of the front end portion of the second electric wire C2 held by the second rotary clamp 2b. Specifically, the first guide 40 is held by the holding plate 42 on the front side at a position closer to the first rotary clamp 2a and the second rotary clamp 2b than the centers of the first electric wire C1 and the second electric wire C2 before twisting. Is retained. The second guide 41 is disposed in the vicinity of the rear end portion of the first electric wire C1 held by the third rotary clamp 2c and in the vicinity of the rear end portion of the second electric wire C2 held by the fourth rotary clamp 2d. . Specifically, the second guide 41 is held by the rear holding plate 42 at a position closer to the third rotary clamp 2c and the fourth rotary clamp 2d than the center.

  The first guide 40 includes a first insertion hole 40a through which the first electric wire C1 and the second electric wire C2 are inserted. The height position of the first insertion hole 40a is set to be substantially the same as the height positions of the first electric wire C1 and the second electric wire C2. The diameter of the first insertion hole 40a is smaller than the distance between the front end of the first electric wire C1 held by the first rotary clamp 2a and the front end of the second electric wire C2 held by the second rotary clamp 2b. Similarly, the 2nd guide 41 is provided with the 2nd penetration hole 41a in which the 1st electric wire C1 and the 2nd electric wire C2 are penetrated. The height position of the second insertion hole 41a is set to be substantially the same as the height positions of the first electric wire C1 and the second electric wire C2. The diameter of the second insertion hole 41a is smaller than the distance between the rear end portion of the first electric wire C1 held by the third rotary clamp 2c and the rear end portion of the second electric wire C2 held by the fourth rotary clamp 2d. Thus, by providing the 1st guide 40 in the vicinity of the front end part of the 1st electric wire C1 and the 2nd electric wire C2, the part of the 1st electric wire C1 and the 2nd electric wire C2 which should be twisted before twisting Each twisted part Y1 (see FIG. 8) can be in a state closer to each other than each non-twisted part Y2 that is a part of the first electric wire C1 and the second electric wire C2 that are not twisted. In other words, in FIG. 4, the untwisted length L1 between the front end portion CTf of the twisted portion of the twisted wire CT and the front end portion of the first electric wire C1, and the untwisted portion of the front end portion CTf and the front end portion of the second electric wire C2. Each of the lengths L2 can be shortened. Similarly, by providing the second guide 41 in the vicinity of the rear end portions of these electric wires, the untwisted length L3 between the rear end portion CTr of the twisted portion of the twisted electric wire CT and the rear end portion of the first electric wire C1. The untwisted length L4 between the rear end portion CTr and the rear end portion of the second electric wire C2 can be shortened.

  As illustrated in FIG. 8, a first guide 44 and a second guide 45 configured to be slidable in the front-rear direction and configured to be slidable in the left-right direction may be employed. The first guide 44 is engageable with the rail 4 (see FIG. 7), and a pair of first guide divisions provided on the guide engaging portion 46 so as to be slidable in the left-right direction. A portion 47 and a second guide dividing portion 48 are provided. The first guide 44 is configured to be slidable on the rail 4. By sliding the first guide 44 before twisting, the untwisted length of the twisted wire CT can be adjusted. Thereby, the characteristic impedance of the twisted electric wire CT can be adjusted. Further, the twist pitch PT (see FIG. 4) can be varied by sliding the first guide 44 during twisting. Thereby, the characteristic impedance of the twisted electric wire CT can be varied.

  The first guide dividing portion 47 and the second guide dividing portion 48 are configured to be slidable on the guide engaging portion 46 in a direction toward and away from each other. The second guide dividing portion 48 is provided on the right side of the first guide dividing portion 47. The first guide dividing portion 47 and the second guide dividing portion 48 are provided such that the first electric wire C1 and the second electric wire C2 are disposed between the first guide dividing portion 47 and the second guide dividing portion 48. . The first guide dividing portion 47 is formed with a first concave portion 47 a toward the second guide dividing portion 48, and the second guide dividing portion 48 is formed with a second concave portion 48 a toward the first guide dividing portion 47. Yes. After the 1st electric wire C1 and the 2nd electric wire C2 are hold | maintained at each rotation clamp 2a-2d, before twisting, the 1st guide division part 47 is slid toward the 2nd guide division part 48. FIG. Along with this, the second guide dividing portion 48 is slid toward the first guide dividing portion 47. Thereby, when the 1st guide division part 47 and the 2nd guide division part 48 mutually contact, the penetration hole 49 is formed by the said 1st recessed part 47a and the 2nd recessed part 48a. As a result, the first electric wire C1 and the second electric wire C2 are inserted into the insertion hole 49. Thereby, since it is not necessary to insert the 1st electric wire C1 and the 2nd electric wire C2 in the insertion hole 49 before hold | maintaining to each rotation clamp 2a-2d, work efficiency improves. Moreover, it becomes easy to take out twisted twisted electric wire CT only by dividing the first guide 44 into the first guide dividing portion 47 and the second guide dividing portion 48. Note that the configuration of the second guide 45 is the same as the configuration of the first guide 44, and a description thereof will be omitted.

  Instead of the first guide 44 and the second guide 45 described above, a guide 50 as shown in FIG. 9 may be employed. The guide 50 includes a pair of a first guide dividing portion 51 and a second guide dividing portion 52 that are provided on the guide engaging portion 46 of FIG. The second guide dividing unit 52 is provided on the right side of the first guide dividing unit 51. The 1st guide division part 51 and the 2nd guide division part 52 are provided along with the length direction of rail 4 (refer to Drawing 7). The first guide dividing portion 51 is formed with a first recess 51a toward the second guide dividing portion 52, and the second guide dividing portion 52 is formed with a second recess 52a toward the first guide dividing portion 51. Yes. The first recess 51a and the second recess 52a are formed in, for example, a triangular shape in a side view. In such a configuration, the first guide dividing portion 51 and the second guide dividing portion 52 slide in the direction in which they approach each other, and the first guide dividing portion 51 and the second guide dividing portion 52 are in the length direction of the rail 4. When overlapped, the insertion hole 53 is formed by the first recess 51a and the second recess 52a. With such a configuration, the size of the insertion hole 53 can be changed according to the sliding amount of the first guide dividing portion 51 and the second guide dividing portion 52. Thereby, the twisting length of the twist electric wire CT can be adjusted.

  As mentioned above, although each embodiment of this invention was described, this invention is not restricted to the above-mentioned embodiment, Furthermore, it can implement in the following modification. You may comprise the following electric wire twist apparatuses 1b. As shown in FIG. 10, the first guide 40 and the second guide 41 are the same as those in the second embodiment described above, except that the configuration of the wire twist apparatus 1b is different from the configuration of the wire twist apparatus 1 according to the first embodiment described above. It is a point to provide. According to the electric wire twist device 1b, the untwisted length in the twisted electric wire CT can be further reduced.

  In the above embodiment, the first rotation clamp 2a and the second rotation clamp 2b are inclined with respect to each other, and the third rotation clamp 2c and the fourth rotation clamp 2d are inclined with respect to each other. However, the present invention is not limited to this. Only one of the first rotation clamp 2a and the second rotation clamp 2b is inclined toward the other, and only one of the third rotation clamp 2c and the fourth rotation clamp 2d is inclined toward the other. It may be. Even with such a configuration, the untwisted length can be shortened. Such a configuration can also be applied only to one of the one end side and the other end side of the first electric wire C1 and the second electric wire C2. That is, only one of the first to fourth rotating clamps 2a to 2d may be inclined toward the other rotating clamp adjacent to the rotating clamp.

  In the said embodiment, although comprised so that the other end part of the 1st electric wire C1 and the other end part of the 2nd electric wire C2 were each hold | maintained separately by the 3rd rotation clamp 2c and the 4th rotation clamp 2d, it is limited to this. Is not to be done. You may comprise so that the other end part of the 1st electric wire C1 and the other end part of the 2nd electric wire C2 may be clamped to one unit body.

  In the above-described embodiment, the case where the two wires of the first wire C1 and the second wire C2 are twisted as the plurality of wires has been described, but the number of wires to be twisted may be three or more. In this case, the number of gears that transmit 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 embodiment, the wires whose ends are stripped in advance before twisting and the so-called end treatment such as terminal punching is completed are twisted together, but the present invention is not limited to this. An electric wire that has been cut at both ends, for example, an electric wire that has not been stripped of both ends, can also be applied to twisting.

  Moreover, in the said embodiment, although the rotation clamp and the mechanism which rotates the said rotation clamp were each provided in the both ends part side of the 1st electric wire C1 and the 2nd electric wire C2, the said rotation clamp and the said one side only. The mechanism may be provided.

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

DESCRIPTION OF SYMBOLS 1 Electric wire twist apparatus of 1st Embodiment 1a Electric wire twist apparatus of 2nd Embodiment 1b Electric wire twist apparatus of 3rd Embodiment 2a 1st rotation clamp 2b 2nd rotation clamp 2c 3rd rotation clamp (holding clamp)
2d Fourth rotation clamp (holding clamp)
3a 1st rotation actuator 3b 2nd rotation actuator 3c 3rd rotation actuator 3d 4th rotation actuator 4 Rail 6 Motor 8 1st rotation axis 9 2nd rotation axis 10 3rd rotation axis 11 4th rotation axis 14 Drive taper gear (drive gear) )
14a Drive gear 15 Holding portion 16 First taper gear 17 Second taper gear 20 Shaft 21 Link mechanism 22 Grip arm 23 Compression spring (biasing member)
24 actuator for grip 30 intermediate clamp 31 intermediate clamp engaging portion 33a intermediate holding portion 33b intermediate holding portion 40 first guide 41 second guide 47 first guide dividing portion 48 second guide dividing portion 49 insertion hole (first insertion hole, Second insertion hole)
50 guides (first guide, second guide)
51 1st guide division part 52 2nd guide division part 53 Insertion hole (1st insertion hole, 2nd insertion hole)
151 Core wire 152 Covered C1 First electric wire C2 Second electric wire CT Twist electric wire P1 Holding position P2 Release position Y1 Twisted part Y2 Non-twisted part

Claims (8)

An electric wire twisting device that manufactures a twisted electric wire by twisting together at least two first electric wires and second electric wires, each having a core wire and a covering covering the periphery of the core wire, and being subjected to cutting treatment at both ends. There,
A first rotating clamp rotatable while holding one end of the first electric wire;
A second rotary clamp provided on a side of the first rotary clamp and rotatable while holding one end of the second electric wire;
A holding clamp for holding the other end of the first electric wire and the other end of the second electric wire;
A first rotary actuator that rotates the first rotary clamp and the second rotary clamp in one direction around the wire axis or in the direction opposite to the one direction;
A second rotary actuator that rotates the first rotary clamp and the second rotary clamp together,
Before twisting the first electric wire and the second electric wire, the first electric wire and the second electric wire should be twisted on at least one of the one end side and the other end side. Each twisted part that is a part of one electric wire and the second electric wire is in a state closer to each other than each non-twisted part that is a part of the first electric wire and the second electric wire that is not twisted. Wire twist device held in   The first rotary actuator is provided on one end side of the first electric wire and the second electric wire, and the second rotary actuator is provided on one end side of the first electric wire and the second electric wire and of the first rotary actuator. The electric wire twist apparatus of Claim 1 provided in the side.   The at least one rotary clamp of the first rotary clamp and the second rotary clamp is provided so that a tip of the one rotary clamp is inclined toward the other rotary clamp. Wire twist device. A first guide having a first insertion hole through which the first electric wire and the second electric wire are inserted; and provided on the other end side of the first electric wire and the second electric wire with respect to the first guide. A second guide having a second insertion hole through which the electric wire and the second electric wire are inserted, and at least one of the guides;
The diameter of the first insertion hole is smaller than the distance between one end of the first electric wire held by the first rotating clamp and one end of the second electric wire held by the second rotating clamp. The diameter of the two insertion holes is smaller than the distance between the other end of the first electric wire held by the holding clamp and the other end of the second electric wire held by the holding clamp. The electric wire twist apparatus of any one of Claims.   A first rotating shaft connected to the first rotating actuator; a gear connected to the first rotating shaft; a driving gear that rotates by receiving the driving force of the gear; 5. The apparatus according to claim 1, further comprising: a first taper gear coupled to the one rotation clamp; and a second taper gear meshed with the drive gear and coupled to the second rotation clamp. Wire twist device. A holding portion for holding the first rotary clamp and the second rotary clamp;
The wire twist device according to any one of claims 1 to 5, further comprising: a second rotation shaft having one end connected to the second rotation actuator and the other end connected to the holding unit. The first rotation clamp includes a first shaft that is movable in a rotation axis direction of the first rotation clamp, a first link mechanism that is rotatably connected to one end of the first shaft, and the first link mechanism. A pair of first grip arms connected to each other and rotatable between a first holding position that holds one end of the first electric wire and a first release position that does not hold the one end, and the first grip arm Moves the first shaft against the urging force of the first urging member, and a first urging member that urges the first shaft so as to go from the first release position to the first holding position. And a first grip actuator that rotates the first link mechanism to rotate the first grip arm from the first holding position to the first release position,
The second rotary clamp includes a second shaft that is movable in a rotation axis direction of the second rotary clamp, a second link mechanism that is rotatably connected to one end of the second shaft, and the second link mechanism A pair of second grip arms connected to each other and rotatable between a second holding position that holds one end of the second electric wire and a second release position that does not hold the one end, and the second grip arm Moves the second shaft against the urging force of the second urging member, and a second urging member that urges the second shaft so as to go from the second release position to the second holding position. And a second grip actuator that rotates the second link mechanism to rotate the second grip arm from the second holding position to the second release position. Any one of the items Wire twist apparatus.   An intermediate clamp is provided between the first rotary clamp and the holding clamp and between the second rotary clamp and the holding clamp, and holds the first electric wire and the second electric wire. The electric wire twist apparatus of any one of 1-7.

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