JP2003259525A - Insulating tube guide, and wiring end section insulating treatment apparatus and method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that an insulating tube cannot be easily fitted since wiring is flexible and is curved when performing insulating treatment for fitting the insulating tube to a terminal end section of the wiring. <P>SOLUTION: The above problem can be solved by an insulating tube guide 32 that has an outer diameter that is smaller than an inner diameter of an insulating tube when a guide nib 36 is closed and has an inner diameter that is larger than the outer diameter in the terminal end section of the wiring when the guide nib 36 is opened, an outer shape where the insulating tube that is fitted to the outer periphery can be moved freely in a direction in parallel with a center axis, and a guide nib 36 that is arranged cylindrically. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating tube guide for insulating the end of an electric wiring, a wiring end insulating treatment device, and a wiring end insulating treatment method.

[0002]

2. Description of the Related Art Electric wires in which a conductive core wire is covered with an outer coating such as plastic are used as wiring for various electric devices. In order to connect these wires to the terminals of the electric device, a connecting tool such as a crimp terminal is often attached to the terminal end of the wires. When the outer coating of the wiring end is peeled off due to the attachment of crimp terminals, etc., in order to prevent the wiring end from contacting other wiring and causing an electrical short circuit,
The insulation treatment is performed using an insulating tube made of an insulating material such as glass fiber, plastic, rubber, paper or cloth.

FIG. 11 shows a state of insulation treatment at the wiring end portion. The wiring 10 has a structure in which an inner core wire 12 is covered with an outer coating 14. The outer coating 14 on the end portion 16 of the wiring 10 is peeled off to obtain electrical contact, and the crimp terminal 18 is attached by crimping the crimped portion 20. At this time, the exposed portion 22 where the core wire 12 is exposed is left from the crimped portion 20 to the terminal end portion of the outer coating 14. The exposed portion 22 is the exposed portion 22 of the other wiring 10.
Etc., the electrical insulation characteristics are deteriorated and sometimes an electrical short circuit occurs.

Therefore, the exposed portion 22 is insulated by winding an insulating tape made of an insulating material or covering it with an insulating tube.

FIG. 12 shows a state of an end portion of a wiring which has been insulation-treated by using an insulating tube. FIG. 12A shows an external perspective view, and FIG. 12B shows a transparent perspective view. The insulating tube 2 is provided around the exposed portion 22 in FIG.
The exposed portion 22 is completely electrically protected by mounting the connector 4.

[0006]

However, when the insulating tube 24 is attached to the distal end portion 16, the wiring 10 is flexible and the wiring 10 is curved, so that the insulating tube 24 is not bent.
It was not easy to insert the end portion 16 into the. Further, when the core wire 12 is formed by gathering a large number of thin wires,
In some cases, each wire was caught in the end portion of the insulating tube 24, and the insulating tube 24 could not be mounted smoothly.

Due to the above-mentioned difficulties, the automation of the insulation treatment of the wiring end portion has not been realized so far, and the end portion 1
The insulation treatment of No. 6 was performed manually.

[0008]

In order to solve the above problems, there is provided an insulating tube guide which is used for mounting an insulating tube on a wiring end portion and includes guide claws arranged in a cylindrical shape, When the guide claw is closed, the outer diameter is smaller than the inner diameter of the insulating tube, when the guide claw is opened, the inner diameter is larger than the outer diameter of the wiring end portion, and the insulating tube mounted on the outer periphery is the central axis. It is possible to use an insulating tube guide having an outer shape that is movable in a direction parallel to.

A wiring end insulation processing apparatus for mounting an insulating tube on a terminal end of a wiring, the apparatus including an insulating tube guide having guide claws arranged in a tubular shape, the guide claw being opened to open the insulating tube. Inserting means for inserting the wiring end portion into the insulating tube guide mounted on the outer periphery, and mounting means for closing the guide claw and transferring and mounting the insulating tube from the insulating tube guide to the wiring end portion. It is possible to use a wiring end insulation processing device including the same.

Further, it is preferable to use a wiring end insulation processing device having a clamp capable of linearly holding the wiring end portion.

Further, in the mounting means, the insulating tube can be transferred and mounted from the insulating tube guide to the wiring end portion by a combination of expansion and contraction of the insulating tube and opening / closing operation of the clamp.

Further, there is provided a wiring end insulating treatment method for mounting an insulating tube on a terminal end of a wiring by using a wiring end insulating treatment device including an insulating tube guide having guide claws arranged in a tubular shape. An insertion step of opening the guide claw and inserting the wiring end portion into the insulation tube guide mounted on the outer periphery of the insulating tube; and closing the guide claw from the insulation tube guide to the wiring end portion. A wiring end insulating treatment method including a mounting step of transferring and mounting the insulating tube can be used.

Further, it is preferable that the wiring end insulation processing device has a clamp, and has a step of holding the wiring end portion in a straight line by the clamp before the inserting step.

Further, in the mounting step, the insulating tube can be transferred from the insulating tube guide to the wiring end portion and mounted by a combination of expansion and contraction of the insulating tube and opening / closing operation of the clamp.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the structure of an insulating tube mounting guide 30 in a wiring end insulation processing device of the present invention.

The wiring end insulation processing apparatus according to the present invention comprises:
It has an insulating tube mounting guide 30. The insulating tube mounting guide 30 has a collet type insulating tube guide 32 in which guide claws are arranged in a hollow cylindrical shape. Insulation tube guide 32 is insulation tube guide frame 3
4 is inserted in a fitting manner.

FIG. 2 shows the structure of the insulating tube guide 32. The insulating tube guide 32 has a taper in the major axis direction (FIG. 2: arrow direction). The guide claw 36 arranged at one end is urged outward from the center of the insulating tube guide 32. The guide tabs 36 are urged outward by pushing the insulating tube guide 32 into the insulating tube guide frame 34 in the direction of the arrow in FIG.
Is closed towards the center.

FIG. 3 shows a step of attaching the insulating tube to the end of the wiring using the insulating tube attachment guide of the present invention.

The insulating tube guide 32 is pushed into the insulating tube guide frame 34, and the guide claw 36 is closed.
In this state, the guide claw 36 is closed so that its outer diameter is smaller than the inner diameter of the insulating tube 38. Next, the insulating tube 38 is mounted around the guide claws 36 of the insulating tube guide 32 (FIG. 3A). Since the guide claw 36 is closed to be thinner than the inner diameter of the insulating tube 38, the insulating tube 38 can be easily attached.
After that, the insulating tube guide 32 is pushed out from the insulating tube guide frame 34, and the guide claw 3 is biased outward.
6 is opened, and the insulating tube 38 is fixed to the outer periphery of the guide claw 36.

The insulating tube mounting guide 30 to which the insulating tube 38 is mounted is rotated so that the end portion on the side having the guide claw 36 faces downward (FIG. 3 (b)).

The wiring end portion 40 is inserted into the guide claw 36 portion of the insulating tube guide 32. Subsequently, the insulating tube guide 32 is pushed into the insulating tube guide frame 34, so that the guide claws 36 are closed inward, and the wiring end portion 40 is gripped (FIGS. 3C and 3D). By this operation, the wiring end portion 40 causes the insulation tube mounting guide 30 to move.
Fixed to the end of. At the same time, the outer diameter of the guide claw 36 is reduced, and the insulating tube 38 fixed around the guide claw 36 is released. The insulating tube 38 falls by its own weight and is attached to the wiring end portion 40.

After the insulating tube 38 is mounted on the wiring end portion 40, the chuck of the wiring end portion 40 is released and the insulating tube mounting guide 30 is pulled out upward (FIG. 3).
(E)).

As described above, the insulating tube mounting guide 3
By using 0, the soft insulating tube 38 is fixed and held around the rigid guide claw 36, and at the same time, the wire end portion 40 is grasped by the guide claw 36 and the soft wire end portion 40 is supported to support the insulating tube 38.
Can be easily attached to the wiring end portion 40.

4A to 4D are sectional views showing another structure of the insulating tube mounting guide 30. Even if the insulating tube mounting guide 30 has these structures, the same effect as described above can be obtained.

In the insulating tube mounting guide 30 shown in FIG. 4A, the guide claw 36 is urged outward from the center so that the insulating tube guide 32 becomes thinner from the guide claw 36 toward the other end. Is provided with a taper.
The guide claw 36 can be opened and closed by pushing the insulating tube guide 32 into or out of the insulating tube guide frame 34. In the insulating tube mounting guide 30 shown in FIG. 4B, the guide claw 36 is biased outward, and the insulating tube guide 32 is provided with a taper so as to become thicker from the guide claw 36 toward the other end. ing. Insulation tube guide 32 to insulation tube guide frame 3
The guide claw 36 can be opened and closed by pulling in or pulling out with respect to 4. In the insulating tube mounting guide 30 shown in FIG. 4C, the guide claw 36 is biased inward, and the insulating tube guide 32 has the guide claw 3
A taper is provided so as to become thinner from 6 toward the other end. The guide claw 36 can be opened and closed by pushing the guide core 42 into or out of the insulating tube guide 32. In the insulating tube mounting guide 30 shown in FIG. 4 (d), the guide claw 36 is biased inward, and the insulating tube guide 32 is provided with a taper so as to become thicker from the guide claw 36 toward the other end. ing.
The guide claw 36 can be opened and closed by pulling the guide core 42 in or out of the insulating tube guide 32.

The insulating tube mounting guide 30 is preferably selected from a columnar structure, a triangular prism structure, or a polygonal prism structure in accordance with the sectional structure of the insulating tube 38 or the wiring. The shape and the number of the guide claws 36 include the thickness of the wiring, the number of
It can be appropriately selected according to the number of twists of the core wire or the shape of the insulating tube 38. For example, in the case of a twisted wire in which a large number of thin core wires are gathered, the interval between the guide claws 36 is made narrower than the diameter of the core wires, and the number of the guide claws 36 is increased so that each core wire is placed between the guide claws 36. It is preferable to have a structure in which they are not sandwiched.

In the above embodiment, the insulating tube 3
8 was attached to the wiring end portion 40 by dropping it by its own weight. For example, a structure in which air or a gas such as nitrogen is blown from the direction of the insulating tube guide 32 to push out the insulating tube 38, or the periphery of the insulating tube 38 is loosened. A structure may be adopted in which the wire is gripped and sent to the wiring end portion 40. As described above, when the insulating tube 38 is mounted without depending on its own weight, it is not necessary to rotate the insulating tube mounting guide 30 in the vertical direction as shown in the above embodiment, and the insulating tube 38 is wired while keeping the horizontal direction. It can be attached to the end portion 40.

FIG. 5 shows the structure of a wiring end insulation processing device having a clamp.

In this wire end insulation processing device, the wire end 40 can be linearly supported by further including the clamp 44 that sandwiches the wire end 40, and the insulating tube 38 can be mounted more easily. it can.

The wiring end portion 40 can be held linearly by automatically stretching the wiring in a straight line by a machine, or by sandwiching it in the clamp 44 in a state where the wiring is manually stretched in a straight line. At this time, it is preferable that the clamp 44 is provided with a groove along the outer diameter of the wiring and the groove is linearly arranged. Further, it is preferable to dispose an elastic material such as rubber at the contact portion between the clamp 44 and the wiring.

FIG. 6 shows a process of attaching the insulating tube 38 in the wiring end insulating processing device having a clamp.

An insulating tube 38 is fixed to the insulating tube mounting guide 30. On the other hand, the first clamp 46
The wiring end portion 40 is linearly supported by the second clamp 48.

Guide claw 3 of the insulating tube mounting guide 30
6 chucks the wiring end portion 40, and the insulating tube 38 is mounted up to the first clamp 46 (FIG. 6A). At this time, it is preferable to provide a mechanism for blowing or feeding gas so that the insulating tube 38 does not return.
When the first clamp 46 is released, the insulation tube 38
Extends to the clamp position by the second clamp 48 (FIG. 6B). At this time, even when the first clamp 46 is released, the wiring claw 36 supports the wiring end portion 40, so that the second clamp 48 alone can linearly support the wiring end portion 40. it can. Next, the wiring end portion 40 and the insulating tube 38 are clamped by the first clamp 46 (FIG. 6C). continue,
The second clamp 48 is released and the insulating tube is extended (FIG. 6 (d)). The wire end portion 40 is linearly supported by the first clamp 48 even when the second clamp 46 is released. By repeating these operations, the insulating tube 38 is attached to the wiring end portion 40.

As described above, by providing the wire end insulation processing device with the wire end clamp and supporting the wire end 40 linearly, the insulating tube 38 can be mounted more easily. Further, the function of feeding the insulating tube 38 can be provided by combining the opening and closing operations of the clamps.

FIG. 7 shows an example of the configuration of an automated wiring end insulation processing device 50.

The insulating tube mounting guide 30 mounted on the rotating portion 52 is fixed to the stage 58 by the body 54 and the column 56. The stage 58 includes a vertical slide portion 60 and a horizontal slide portion 62 attached to the main shaft 64.
This enables movement in the vertical and horizontal directions, respectively. A first clamp 46 and a second clamp 48 for linearly supporting the wiring end portion 40 on the main shaft 64.
Is also provided. The wiring cutting section 6 is provided on the stage 58.
6, an insulating tube attachment portion 68 and a crimp portion 70 are provided.

FIG. 8 shows an enlarged view of the stage 58. The wiring cut portion 66 has a cutting hole 72 penetrating the stage 58.
And a cutter 74 provided inside the stage 58 is driven by an actuator 76 to cut the hole 7 for cutting.
The structure is such that the wiring inserted in 2 can be cut. The insulating tube mounting portion 68 has a mounting hole 80 penetrating the stage 58. The crimp portion 70 has a crimp hole 84 into which a crimp terminal is inserted, and the punch 8 provided inside the stage 58.
By driving 6 by an actuator 76, the crimp terminal can be crimped.

Further, guides 78, 82, 88 penetrating the tapered holes are provided side by side in order to smoothly guide the wiring to the cutting hole 72, the mounting hole 80 and the crimping hole 84. The guides 82 and 88 have a structure that can be divided at the center by an actuator 76.

FIG. 9 shows an operational flow chart of the automated wiring end insulation processing apparatus. The operation of the automated wiring end insulation processing device will be described below with reference to FIGS. 7 to 9.

The wiring end portion 40 subjected to the end insulation treatment is linearly supported by the clamps 46 and 48 (FIG. 9).
(A)). The stage 58 is moved by the vertical slide portion 60 and the horizontal slide portion 62, and the wiring end portion 40 is inserted into the cutting hole 72 of the wiring cutting portion 66. At this time, the end portion 40 of the wiring is smoothly introduced into the cutting hole 72 by the guide 78.

The wire end portion 40 is cut at a predetermined position by the cutter 74. On the other hand, the insulating tube mounting guide 30 is rotated in the horizontal direction by the rotating portion 52, and the insulating tube 38 is fixed as shown in FIG. Then, the insulating tube mounting guide 30 is returned to the vertical direction again (FIG. 9B).

Next, the stage 58 is moved by the vertical slide portion 60 and the horizontal slide portion 62 to move the wiring end portion 40.
Is inserted into the mounting hole 80 of the insulating tube mounting portion 68. At this time, the guide 82 is closed, and the wiring end portion 40 is smoothly inserted into the mounting hole 80. At the same time, the insulating tube mounting guide 30 installed on the stage 58 descends, the wiring claws 40 are chucked by the guide claws, and the insulating tube 38 is mounted to the wiring claws 40 (FIG. 9C). After the insulation tube 38 is installed,
The guide 82 is opened by the actuator, and prevents the insulating tube 38 from coming off due to being caught by the guide 82 when the wiring end portion 40 is pulled out.

Finally, the stage 58 is moved by the vertical slide portion 60 and the horizontal slide portion 62, and the wiring end portion 40 having the insulating tube 38 mounted therein is inserted into the crimp terminal set in the crimp hole 84 of the crimp portion 70. . At this time, the guide 88 is closed, and the wiring end portion 40 is smoothly inserted into the crimp hole 84. The punch 86 is driven by the actuator to crimp the crimp terminal to the wiring end portion 40 (FIG. 9D). Thereafter, the guide 88 is opened by the actuator, and the crimp terminal is prevented from being detached by the guide 88 when the wiring end portion 40 is pulled out.

By providing the insulating tube mounting guide 30, the mounting of the insulating tube 38 on the wiring end portion 40 can be automated. Further, by providing the clamps 46 and 48, the wiring can be supported linearly, which facilitates automation.

It is also possible to automate the connection of the neutral points of the multi-wiring by adding more clamps. FIG. 10 shows a state of insulating treatment of neutral points of three-phase wiring. When the number of wires increases in this way (Fig. 10)
In (a) as well, the clamp 44 can be rotated so that the wiring end portions are overlapped (FIG. 10B), so that the insulation treatment of the end portions of the multi-wiring can be performed. In addition, by using the guide, the wiring can be smoothly inserted, which facilitates automation (see FIG. 1).
0 (c)).

The configuration of this automated wiring end insulation processing device is an example, and the same effect can be obtained with other configurations as long as it has a wiring cut portion, an insulating tube mounting portion and a crimping portion. You can

[0047]

By using the wiring end insulation processing apparatus or the wiring end insulation processing method of the present invention, the insulating tube can be easily attached to the wiring end, and the insulation processing of the wiring end is extremely simple. Can be

Further, the insulation treatment of the wiring end can be automated.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a configuration of an insulating tube mounting guide according to an embodiment of the present invention.

FIG. 2 is a diagram showing a structure of an insulating tube guide of the insulating tube mounting guide according to the embodiment of the present invention.

FIG. 3 is a diagram showing a step of attaching an insulating tube to a wiring end portion using the insulating tube attachment guide in the embodiment of the present invention.

FIG. 4 is a diagram showing an example of another configuration of the insulating tube mounting guide.

FIG. 5 is a diagram showing a configuration of a wiring end insulation processing device having a clamp according to an embodiment of the present invention.

FIG. 6 is a diagram showing a process of attaching an insulating tube using a clamp according to the embodiment of the present invention.

FIG. 7 is a diagram showing an example of a configuration of an automated wiring end insulation processing device according to an embodiment of the present invention.

8 is a diagram showing an enlarged view of a stage portion of the wiring end insulation processing device in FIG. 7. FIG.

FIG. 9 is a diagram showing an operation flow of the automated wiring end insulation processing device in the embodiment of the present invention.

FIG. 10 is a diagram showing a wiring end insulating process for multiple wirings in the embodiment of the present invention.

FIG. 11 is a diagram showing a wiring end portion that is not insulated by an insulating tube.

FIG. 12 is a diagram showing a wiring end portion that has been subjected to an insulation treatment with an insulating tube.

[Explanation of symbols]

10 wiring, 12 core wire, 14 outer coating, 16 terminal portion, 18 crimp terminal, 20 caulking portion, 22 exposed portion,
24 insulation tube, 30 insulation tube installation guide,
32 insulating tube guide, 34 insulating tube guide frame, 36 guide claw, 38 insulating tube, 40 wiring end, 42 guide core, 44 clamp, 46 first clamp, 48 second clamp, 50 automated wiring end insulation Processor, 52 rotating part, 54 body,
56 columns, 58 stages, 60 vertical slides, 6
2 horizontal slide section, 64 spindle, 66 wiring cut section,
68 Insulation tube mounting part, 70 Crimping part, 72 Cutting hole, 74 Cutter, 76 Actuator, 78
Guide, 80 mounting hole, 82 guide, 84 crimping hole, 86 punch, 88 guide.

Continued front page    F-term (reference) 5E051 AA10 AB10                 5G355 AA03 BA02 BA08 BA14 CA06                       CA09                 5G375 AA02 BA09 BB43 CA02 CA13                       CB07 CC07 DA36 EA17

Claims (7)

[Claims] 1. An insulating tube guide used for mounting an insulating tube on a wiring end portion and including a guide claw arranged in a tubular shape, wherein the insulating tube guide is closed when the guide claw is closed. An outer diameter smaller than an inner diameter, an inner diameter larger than the outer diameter of the wiring end portion when the guide claw is opened, and an outer shape capable of moving the insulating tube mounted on the outer periphery in a direction parallel to the central axis, An insulating tube guide characterized by having. 2. A wire end insulation processing device for mounting an insulation tube on a wire end, comprising an insulation tube guide having guide claws arranged in a tubular shape, and opening the guide claws to open the insulation tube. Insertion means for inserting the wiring end portion into the insulating tube guide mounted on the outer periphery, and a mounting means for closing the guide claw and transferring and mounting the insulating tube from the insulating tube guide to the wiring end portion, A wiring end insulation processing device comprising: 3. The wiring end insulation processing device according to claim 2, further comprising a clamp capable of linearly holding the wiring end portion. 4. The mounting means transfers and mounts the insulating tube from the insulating tube guide to the wiring end portion by a combination of expansion and contraction of the insulating tube and opening / closing operation of the clamp. The wiring end insulation device according to [4]. 5. A wiring end insulation treatment method for mounting an insulation tube on a wiring end portion by using a wiring end insulation treatment device including an insulation tube guide having guide claws arranged in a tubular shape. An insertion step of opening the guide claw and inserting the wiring end into the insulation tube guide mounted on the outer periphery of the insulating tube; and closing the guide claw to connect the insulation tube guide to the wiring end. A wiring end insulating treatment method, which comprises a step of transferring and mounting the insulating tube. 6. The wiring end insulation processing device further includes a clamp, and further comprises a step of holding the wiring end portion in a straight line by the clamp before the inserting step. The wiring end insulation treatment method described. 7. The mounting step, wherein the insulating tube is transferred from the insulating tube guide to the wiring end portion and mounted by a combination of expansion and contraction of the insulating tube and opening / closing operation of the clamp. The wiring end insulation method described in.