JP2009129729A - Twisted wire manufacturing method and manufacturing apparatus - Google Patents

Abstract

A method and an apparatus for manufacturing a twisted wire capable of suppressing variation in impedance and improving yield.
A method of manufacturing a twisted wire according to the present invention includes gripping one end of each of a pair of electric wires independently, constraining the one end around the central axis of the electric wire, and fixing the other end. Then, one end of the pair of electric wires is twisted in either the left or right direction.
[Selection] Figure 1

Description

  INDUSTRIAL APPLICABILITY The present invention is an electronic device applied to vehicles such as passenger cars, trucks, and buses, and a twist wire manufacturing method and manufacturing device suitable for electrical connection between electronic devices applied in offices and homes. About.

  A twisted wire constituted by twisting a pair of electric wires is generally not easily affected by noise or the like, and is particularly suitable when applied to a vehicle having noise generation sources everywhere. Such a twisted wire needs to twist a pair of electric wires in the manufacturing stage, and in this twisting process, twisting around the central axis of each electric wire occurs, and after the twisting process is finished, twisting around the central axis of each electric wire is performed. A force to return is applied. For this reason, a gap is generated between the pair of electric wires constituting the twisted wire, and the dielectric constant between the pair of electric wires is changed to be reduced, so that the impedance as the twisted wire deviates from desired characteristics. There was a problem. As a manufacturing method and a manufacturing apparatus for manufacturing a twisted wire that solves such a problem, there is one described in Patent Document 1, for example.

In this manufacturing method and manufacturing apparatus, in a state where one end of a pair of electric wires is fixed and the other end is fixed by a fork-shaped fixing jig so that each electric wire is not restrained around the central axis of each electric wire, A twisted wire is formed by twisting one end side, thereby preventing twisting around the central axis of each electric wire in the twisting step.
JP 2001-319536 A

  However, in such a manufacturing method and manufacturing apparatus, although the problem that the impedance deviates from the desired characteristic due to the generation of the force to return the twist generated in the twisting process can be solved, the other end is removed in the twisting process. Since each electric wire is fixed by a fork-shaped fixing jig so as not to be constrained around the central axis of each electric wire, the fixing becomes uncertain, and the other ends of the pair of electric wires are set to a predetermined length. In the twisting process, for example, when the other end of the pair of electric wires interferes with other equipment in the factory, the fixing is released and a predetermined twist is applied to the pair of electric wires. There is a problem that the yield of the twisted line is lowered.

  In view of the above problems, an object of the present invention is to provide a method and an apparatus for manufacturing a twisted wire that can suppress variations in impedance and increase the yield.

In order to solve the above problem, a method of manufacturing a twisted wire according to the present invention is as follows.
Grasp one end of each of the pair of electric wires independently, constrain each one end around the central axis of the electric wire, fix the other end, It is characterized by twisting in the direction of.

  According to this, in a state in which one end of each of the pair of electric wires is independently gripped and the respective one ends are constrained around the central axis of the electric wire and prevented from rotating with respect to the floor surface. Since the other ends of the pair of electric wires are fixed and the one ends of the pair of electric wires are twisted, twisting of the individual electric wires around the central axis is prevented by twisting the pair of electric wires. it can.

  As a result, a force for returning the twist around the central axis of each electric wire acts after the twisting process is finished, and a gap is generated between the pair of electric wires constituting the twisted twisted wire, and the dielectric between the pair of electric wires is generated. It is possible to prevent the occurrence of the problem that the impedance as the twist line deviates from a desired characteristic by changing in the direction in which the rate decreases.

  Furthermore, since the other end of the pair of electric wires is fixed, the other end of the pair of electric wires protruding from the fork-shaped fixing jig in the prior art is fixed by interfering with other equipment in the factory. The twist line becomes defective and the yield of the twist line is reduced.

The twisted wire manufacturing apparatus according to the present invention capable of realizing the twisted wire manufacturing method is as follows.
A pair of gripping means for independently gripping one end of each of the pair of electric wires; a restraining means for restraining the gripping means around the central axis of the electric wire; and the pair of gripping means for twisting the pair of electric wires And a fixing means for fixing each other end of the pair of electric wires.

  According to this, the twist line manufacturing method capable of preventing the above-described variation in impedance between the individual twist lines and increasing the yield can be realized by a relatively simple manufacturing apparatus.

  The restraining means may be a gear device or a balancer.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method and manufacturing apparatus of a twist line which can suppress the dispersion | variation in an impedance and can improve a yield can be provided.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram illustrating a twisted wire manufacturing apparatus according to an embodiment of the present invention, partially broken away. 2 is a schematic diagram showing the twisted wire manufacturing apparatus shown in FIG. 1 as viewed from the DD direction, and FIG. 3 is a schematic diagram showing an EE cross section of the twisted wire manufacturing apparatus shown in FIG.

  As shown in FIG. 1, the twist wire manufacturing apparatus 1 according to the first embodiment has a plurality of meshes with a clamp 2, a clamp 3, a face plate 4, and a gear 4 a provided on the outer peripheral side of the face plate 4. The pinion gear 5, the carrier 6 that rotatably supports the plurality of pinion gears 5 around the central axis of the pinion gear 5, the sun gear 7 that meshes with the pinion gear 5, the motor 8 that rotates the sun gear 7, and the sun gear 7 are twisted. A driven gear 9 that is coaxially driven on the center C, a gear 2 a and a gear 3 a that are configured at the right end portions of the clamp 2 and the clamp 3 and meshed with the driven gear 9, and a clamp 10 are configured. In FIG. 1, the clamp 2, the clamp 3, the eye plate 4, and the carrier 6 are shown broken at a cross section including the twist center C.

  As shown in FIGS. 1 and 2, the clamp 2 constitutes a gripping means for independently gripping one end on the right side of the wire A in FIG. 1, and the clamp 3 is also shown in FIGS. In this way, a gripping means for independently gripping one end of the electric wire B on the right side in FIG. That is, the clamp 2 and the clamp 3 constitute a pair of gripping means that grips one end of each of the pair of electric wires A and B independently.

  As shown in FIG. 1, the motor 8 is coaxially disposed on the twist center C on the sun gear 7 and is drive-coupled. As shown in FIGS. 1 and 2, the motor 8 is on the outer circumference side of the eye plate 4 and the sun gear 7. The four pinion gears 5 are supported by a pair of annular carriers 6 centered on the twisting center C so as to be rotatable around the central axis of the pinion gear 5. The leg portion 6a is fixed to the floor surface, and the eye plate 4 is rotatably supported around the twist center C via the carrier 6 and the plurality of pinion gears 5 with respect to the floor surface.

  The first gear device composed of the motor 8, the driven gear 9, and the gear 2 a and having one stage of engagement constitutes a restraining means for restraining the clamp 2 around the central axis of the electric wire A, and the motor 8 and the driven gear 9 The second gear device configured by the gear 3a and having one stage of engagement constitutes a restraining means for restraining the clamp 3 around the central axis of the electric wire B.

  The third gear device having a two-stage meshing structure constituted by a motor 8, a sun gear 7, a plurality of pinion gears 5 and a gear 4a is a pair of clamping means 2 and clamp 3 as a pair of gripping means together with a pair of eye plates 4. Rotating means for rotating around the twisted center C of the electric wires A and B is configured. The clamp 10 constitutes a fixing means that clamps and fixes the other end of the pair of electric wires A and B on the left side in FIG. 1 as shown in FIG. 3, and the other of the electric wires A and B on the left side in FIG. Fixed to the floor at the edges.

  As shown in FIG. 2, the face plate 4 is formed in a disc shape, and a gear 4 a is formed on the outer peripheral surface thereof, and a predetermined distance α is provided on the opposite side in the radial direction from the twist center C of the pair of wires A and B. Bearings 4b and 4c that support the clamp 2 and the clamp 3 so as to be rotatable around their respective central axes are provided at spaced apart positions, and are supported rotatably around the twisting center C by a pinion gear 5 located on the outer peripheral side.

  In the manufacturing apparatus 1 configured as described above, as shown in FIG. 1, when the sun gear 7 is rotated counterclockwise with respect to the twist center C by the motor 8, the rotational force is transmitted to the pinion gear 5. Is rotated clockwise around the central axis of the pinion gear 5, the rotational force is transmitted to the gear 4 a, and the eye plate 4 is rotated counterclockwise about the twist center C.

  At the same time, when the sun gear 7 is rotated counterclockwise with respect to the twisting center C by the motor 8, the driven gear 9 integrally connected coaxially is also rotated counterclockwise, and the rotational force of the driven gear 9 becomes the gear 2a and the gear 3a. , The gear 2a and the gear 3a are rotated clockwise around the respective central axes.

  That is, the gear 2a and the gear 3a are rotated clockwise by the same number of rotations so as to cancel the counterclockwise rotation of the eye plate 4, the clamp 2 is restrained around the central axis of the electric wire A, and the clamp 3 is The total gear ratio of the sun gear 7, the pinion gear 5, and the gear 4a and the gear ratio of the driven gear 9, the gear 2a, and the gear 3a are appropriately set so as to be constrained about the center axis of B.

  That is, in the first embodiment, one end of each of the pair of electric wires A and B is gripped independently by the clamp 2 and the clamp 3, and each one end is rotated by the driven gear 9, the gear 2a, and the gear 3a. The electric wires A and B are constrained around the center axis, the other end is fixed by the clamp 10, and one end of the pair of electric wires A and B can be twisted counterclockwise, whereby a twisted wire is manufactured.

  According to such a method of manufacturing a twisted wire, one end of each of the pair of electric wires A and B is independently gripped, and the respective one end is constrained around the central axis of the electric wires A and B and is placed on the floor surface. The other ends of the pair of electric wires A and B are fixed in a state in which they are prevented from rotating with respect to each other, and the one ends of the pair of electric wires A and B are twisted around the twisting center C. By twisting B, it is possible to prevent twisting around the central axis of each of the electric wires A and B.

  Thereby, after the end of the twisting process, the force to return the twist about the central axis of each of the electric wires A and B acts, and a gap is generated between the pair of electric wires A and B constituting the twisted wire, It is possible to prevent the occurrence of a problem that the dielectric constant between the pair of electric wires A and B changes in the direction of decreasing and the impedance as the twisted wire deviates from desired characteristics.

  Further, since the other ends of the pair of electric wires A and B are fixed, when the technique as described in the prior art is applied, the pair of electric wires A and B protruding from the fork-shaped fixing jig For example, it is possible to prevent a problem that the other end is unfixed by interfering with other equipment in the factory and the like, and the twisted wire becomes defective and the yield of the twisted wire is reduced.

  Further, the twisted wire manufacturing apparatus 1 according to the present invention is configured as described above, and the twisted wire manufacturing method according to the present invention, which can prevent variations in impedance between the individual twisted wires, is a drive source. This can be realized by a relatively simple manufacturing apparatus 1 with one motor 8.

  Note that the twist wire manufacturing apparatus can be replaced with another form instead of the form using the gear apparatus combining the gears as shown in the first embodiment. The structure about it is described below.

  FIG. 4 is a schematic diagram showing an embodiment of a twisted wire manufacturing apparatus capable of realizing the twisted wire manufacturing method according to the present invention. FIG. 5 is a schematic diagram showing the twisted wire manufacturing apparatus shown in FIG. 4 as viewed from the FF direction.

  As shown in FIG. 4, the twist wire manufacturing apparatus 11 according to the second embodiment includes a clamp 12, a clamp 13, a eye plate 14, a motor 15 that rotates the eye plate 14, a balancer 16, and a balancer 17. And a clamp 18.

  The clamp 12 constitutes a gripping means for independently gripping one end of the right side of the electric wire A in FIG. 4, and the clamp 13 constitutes a gripping means for independently gripping one end of the right side of the electric wire B in FIG. To do. That is, the clamp 12 and the clamp 13 constitute a pair of gripping means that grips one end of each of the pair of electric wires A and B independently.

  The balancer 16 is rotatably attached to the other end side of the balancer 16 around the bar 14a protruding to the other end side of the wires A and B on the left side in FIG. It protrudes toward The balancer 16 prevents the clamp 12 from rotating with respect to the floor surface by the gravitational action, and constitutes a restraining means that always restrains the clamp 12 around the central axis of the electric wire A.

  The balancer 17 is mounted on the eyeplate 14 so as to be rotatable about a bar 14b that is located on the opposite side in the radial direction with respect to the bar 14a and the twisting center C and protrudes to the other end. The clamp 13 is provided so as to protrude toward the other end side. Similarly, the balancer 17 prevents the clamp 13 from rotating with respect to the floor surface by the gravitational action, and constitutes a restraining means that always restrains the clamp 13 around the central axis of the electric wire B.

  The motor 15 constitutes a rotating means for rotating the clamp 12 and the clamp 13 which are a pair of gripping means around the twist center C of the pair of electric wires A and B. The clamp 18 constitutes a fixing means for fixing the other ends of the pair of electric wires A and B, and is fixed to a floor surface (not shown) at the other end of the electric wires A and B on the left side in FIG.

  The eye plate 14 is configured in a disk shape, and a balancer 17 and a bar 14a that rotatably supports the balancer 16 at a position separated from the twisting center C of the pair of electric wires A and B by a predetermined distance on the opposite side in the radial direction. Is rotatably supported around the twisting center C by being coupled to a motor 15 coaxially positioned on the twisting center C and being fixed to the floor surface. .

  In the manufacturing apparatus 11 configured as described above, when the eye plate 14 is rotated by the motor 15, one end of each of the pair of electric wires A and B is gripped independently by the clamp 12 and the clamp 13, One end of the pair of electric wires A and B can be twisted leftward by constraining the end around the central axis of the electric wires A and B and fixing the other end with the clamp 18, thereby producing a twisted wire. The

  Also by the manufacturing method of such a twisted wire, similarly to what was shown in Example 1, each one end of a pair of electric wires A and B is hold | gripped independently, and each one end is used for electric wires A and B. The other ends of the pair of electric wires A and B are fixed while the other ends of the pair of electric wires A and B are fixed with the other ends of the pair of electric wires A and B being twisted around the center C. Therefore, by twisting the pair of electric wires A and B, it is possible to prevent the twisting around the central axis of the individual electric wires A and B from occurring.

  By these things, the force which tries to return the twist around the central axis line of each electric wire A and B acts after the end of the twisting process, and a gap is generated between the pair of electric wires A and B constituting the twisted twisted wire. This can be prevented. That is, it is possible to prevent the occurrence of a problem that the dielectric constant between the pair of electric wires A and B changes in the direction of decreasing and the impedance as the twisted wire deviates from desired characteristics.

  In addition, since the other ends of the pair of electric wires A and B are fixed, the pair of electric wires A and B projecting from the fork-shaped fixing jig when the technique described in the prior art is applied. For example, the other end of the wire may be unfastened due to interference with other equipment in the factory, and the twisted wire becomes defective, thereby preventing the occurrence of a problem that the yield of the twisted wire is reduced. Can do.

  In addition, by configuring the twisted wire manufacturing apparatus 11 of the second embodiment as described above, a twisted wire manufacturing method that can prevent variation in impedance between individual twisted wires according to the present invention is used as a drive source. This can be realized by a relatively simple manufacturing apparatus 11 with one motor 15 as one.

  Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions are made to the above-described embodiments without departing from the scope of the present invention. be able to.

  The present invention relates to a twisted wire manufacturing method and a manufacturing apparatus that can provide a twisted wire manufacturing method and manufacturing apparatus that can suppress impedance variation and increase yield, and can be achieved by relatively minor changes. Because it can obtain the desired effect, it is useful not only for twisted wires used in various vehicles such as passenger cars, trucks and buses, but also for twisted wires used in household, office and industrial electronic devices. Is.

It is a schematic diagram which shows one Embodiment of the manufacturing method and manufacturing apparatus of a twist wire which concern on this invention. It is a schematic diagram which shows one Embodiment of the manufacturing method and manufacturing apparatus of the twist wire which concern on this invention. It is a schematic diagram which shows one Embodiment of the manufacturing method and manufacturing apparatus of the twist wire which concern on this invention. It is a schematic diagram which shows one Embodiment of the manufacturing method and manufacturing apparatus of the twist wire which concern on this invention. It is a schematic diagram which shows one Embodiment of the manufacturing method and manufacturing apparatus of the twist wire which concern on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Twist wire manufacturing apparatus 2 Clamp 2a Gear 2b Gear 3 Clamp 4 Eye plate 4a Gear 4b Bearing 4c Bearing 5 Pinion gear 6 Carrier 7 Sun gear 8 Motor 9 Driven gear 10 Clamp 11 Twist wire manufacturing device 12 Clamp 13 Clamp 14 Eye plate 14a Bar 15b Bar 15 Motor 16 Balancer 17 Balancer 18 Clamp

Claims (4)

  Grasp one end of each of the pair of electric wires independently, constrain each one end around the central axis of the electric wire, fix the other end, A method for producing a twisted wire, wherein the twisted wire is twisted in the direction.   A pair of gripping means for independently gripping one end of each of the pair of electric wires; a restraining means for restraining the gripping means around a central axis of the electric wire; and the pair of gripping means for twisting the pair of electric wires. An apparatus for producing a twisted wire, comprising: a rotating means for rotating the wire around the wire; and a fixing means for fixing the other end of each of the pair of electric wires.   The twisted wire manufacturing apparatus according to claim 2, wherein the restraining means is a gear device.   The twisted wire manufacturing apparatus according to claim 2, wherein the restraining means is a balancer.

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