JP2000133403A - Slide cutter for terminal crimp machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter capable of precisely being positioned even when a core wire of small diameter is pressure bonded by integrally providing a stopper to be contacted with a coated end part of a coated wire and pressure bonded by a crimp terminal, for positioning the coated wire. SOLUTION: An approximately semicircular stopper 12 for positioning a coated wire W to a wire guide groove 10b of a slide cutter 10 is formed integrally with the slide cutter 10. The coated wire W is a sealed cable comprising a core wire W1, a coating part W2 for coating the core wire W1, a conductive sheath W3 for coating the coating part W2 and an insulating sheath W4 for coating the conductive sheath W3. An end face part of the insulating sheath W4 of the coated wire W is positioned by the stopper 12, the coated part W2 is received by the semicircular groove, and the coated wire W is positioned on a crimping terminal T. Whereby the load causing the buckling, is not applied to the wire W1 itself. Particularly the positioning can be effectively performed when a core wire of a shield cable is to be pressure bonded with the terminal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a slide cutter for a terminal crimping machine.

[0002]

2. Description of the Related Art A terminal crimping machine is generally known as a device for continuously crimping a crimp terminal to an end of a covered electric wire.
This terminal crimping machine is detachably attached to a press device, and is provided with a terminal feeding / conveying unit for feeding and conveying a long terminal feeding wound in a reel shape, and a crimping from a conveyed terminal feeding. A press section for separating the terminal and crimping the coated wire is included, and the crimping process is automatically and continuously performed in conjunction with the press section.

FIG. 4 is a schematic sectional view showing a main part of a general terminal crimping machine. As shown in the figure, crimp terminals T supplied by a general terminal crimping machine are connected to a band material called a carrier 1 via a connecting portion 2 and are juxtaposed at equal intervals. In order to crimp the crimp terminal T to the insulated wire W, the terminal crimping machine is provided with an anvil 3 and a crimper 4, and by clamping the barrel T1 of the crimp terminal T between them, the barrel T1 is swaged, The wire W is crimped.

By the way, in order to separate the crimp terminal T from the carrier 1, the terminal crimping machine is provided with a slide unit 6 juxtaposed with the anvil 3. The slide unit 6 includes a fixed guide 6 fixed to the crimping machine main body 5.
a and a slide cutter 6b that can be moved up and down by a fixed guide 6a. This slide cutter 6
b has a guide groove 6c for guiding the carrier 1 to which the crimp terminal T is connected, and a downstream portion of the carrier 1 guided by the guide groove 6c is provided on the upper surface of the fixed guide 6a. The first connecting portion 2 is urged upward by a coil spring 6e in a state of being exposed on the upper surface of the anvil. On the other hand, the crimper 4 is provided with a punch 7 for pressing the slide cutter 6b, so that the crimp terminal T can be pressed at a predetermined timing prior to the crimping step. And this punch 7
The slide cutter 6b is pressed by the
The connecting portion 2 and the downstream side of the carrier 1 are cut by the shear force of the anvil 3, the fixed guide 6a, and the slide cutter 6b, respectively.

When the coated electric wire W is manually supplied to the crimping terminal T to be crimped, a positioning stopper 8 for positioning the coated electric wire W on the crimping terminal T is provided on the crimping machine main body 11. . Then, the worker stops the stopper 8
The sheathed wire W is positioned by abutting the exposed core wire W1 on the end of the sheathed wire W.

[0006]

However, when the core wire W1 of the above-mentioned insulated wire W has a small diameter, the insulated wire W is buckled because the insulated wire W is positioned by abutting the tip against the stopper 8. In addition, there was a possibility that poor crimping would occur. In particular, when the insulated wire W is a shielded cable or the like, the core wire W1 crimped to the crimp terminal T has a very small diameter and may be constituted by a stranded wire, which may cause buckling more easily. Was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a slide cutter for a terminal crimping machine capable of precisely positioning a small-diameter core wire without buckling even when crimping the core wire. And

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is provided on an anvil for caulking a crimp terminal, and interlocks with a crimping operation of a crimper for caulking a crimp terminal with the anvil. A terminal cutter for cutting a carrier of a crimping terminal, wherein the crimping terminal abuts on a covering end of the covered wire to be crimped, and integrally has a stopper for positioning the covered wire. It is a slide cutter for a crimping machine.

In the invention including this specific matter, the stopper does not abut on the core wire of the insulated wire, but abuts on the covering end covering the outer periphery of the core wire. The load that causes the load is eliminated. Here, the term “covered electric wire” includes not only a two-layer cable composed of a core wire and a covering member but also a shielded cable in which the outer periphery of the covering member is covered with a conductive sheath, and the outer periphery is further covered with an insulating sheath. Yes, in the present invention,
It is particularly suitable for crimping a crimp terminal to a core wire (core wire) of such a shielded cable.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A preferred embodiment of the present invention will be described in detail. FIG. 1 is a perspective view showing a schematic configuration of a terminal crimping machine 20 employing a slide cutter 10 according to an embodiment of the present invention, and FIG. 2 is a perspective view showing the slide cutter of FIG. FIG. 3 is an enlarged perspective view showing a main part of the slide cutter of FIG.

Referring to FIG. 1, a crimping machine 20 according to the embodiment shown in FIG. 1 is provided on a crimping machine main body 21 detachably attached to a pressing device (not shown), and provided on the crimping machine main body 21. Crimping section 2 driven by the press device
2 and a crimp terminal feeding section 23 for intermittently feeding the carrier 1 in conjunction with the crimp section 22 to send the crimp terminals connected to the carrier 1 to the crimp section 22 one by one. I have.

The crimping portion 22 includes a shank 22a connected to a press device, a crimper 22b attached to the shank 22a, and an anvil 22c (see FIG. 2) arranged at a position facing the lower surface of the crimper 22b. By crimping the barrel T1 of the crimp terminal T with the crimper 22b in a state where the crimp terminal T fed by the crimp terminal feeder 23 is placed on the anvil 22c. The crimp terminal T is crimped to the insulated wire W. The shank 22a is provided with a punch 22d for pressing the slide cutter 10 of the slide unit attached to the crimping machine main body 21. By pressing the slide cutter 10 at the time of crimping, the punch 22d is pressed similarly to a known configuration. The terminal T can be separated from the carrier 1.

Referring to FIG. 2, the slide cutter 10 includes:
As in the case of the known example, it is held up and down by a predetermined stroke S by a fixed guide 11 fixed to the crimping machine main body 21, and is urged upward by a spring (not shown). In the illustrated example, the anvil 22c is fixed to the fixed guide 11. The slide cutter 10 includes a pressure receiving projection 10a that receives the punch 22d.
And a semicircular wire guide groove 10b formed on the surface on which the pressure receiving projection 10a is erected.
This is for guiding the covered electric wire W to which the crimp terminal T is crimped to the crimp terminal T mounted thereon. A guide groove 10c for guiding the carrier 1 is formed on the back surface of the slide cutter 10.
Thereby, the main part of the carrier 1 is cut at the time of receiving pressure.

In the above configuration, the wire guide groove 10b of the slide cutter 10 is provided with the coated wire W.
A substantially semi-annular stopper 12 for positioning is integrally formed. In the illustrated example, the coated electric wire W
Is a shield cable composed of a core wire W1, a covering portion W2 covering the core wire W1, a conductive sheath W3 covering the covering portion W2, and an insulating sheath W4 covering the conductive sheath W3. In this embodiment, FIG.
As is well shown in FIG.
(In this example, since the conductive sheath W3 is partially exposed from the end of the insulating sheath W4 and is folded back to the outer peripheral side, the root portion of the folding is positioned at the stopper). 12 is positioned and receives the covering portion W2 in the semicircular groove 12a, thereby forming the covered electric wire W.
Are aligned with the crimp terminal T.

In the above configuration, the core wire W1 of the insulated wire W is not brought into direct contact with the stopper, but the sheath end (the conductive sheath W3 in the illustrated example) covering the outer periphery of the core wire W1.
Since the stopper 12 is in contact with the base portion of the core wire W1, the load causing the buckling is not applied to the core wire W1 itself. Therefore, this configuration has a remarkable effect that, even when a small-diameter core wire is crimped, it can be precisely positioned without buckling.

The above embodiment is merely an example of a preferred specific example of the present invention, and the present invention is not limited to the above embodiment. It goes without saying that various design changes are possible within the scope of the claims of the present invention.

[0017]

As described above, according to the present invention, when crimping a small-diameter core wire, positioning can be performed precisely without buckling, and particularly when crimping a terminal to a core wire of a shielded cable. There is a remarkable effect that positioning can be suitably performed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of a terminal crimping machine employing a slide cutter according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of the slide cutter shown in FIG.

FIG. 3 is an enlarged perspective view showing a main part of the slide cutter of FIG. 2;

FIG. 4 is a schematic sectional view showing a main part of a general terminal crimping machine.

[Explanation of symbols]

 Reference Signs List 1 carrier 10 slide cutter 10b wire guide groove 11 crimping machine main body 12 stopper 20 terminal crimping machine 21 crimping machine main body 22b crimper 22c anvil 22d punch 22 crimping part T crimping terminal T1 barrel W coated wire W1 core wire

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Haruhito Kobayashi F-14 term in Sumitomo Wiring Systems Co., Ltd. 1-14 Nishisuehirocho, Yokkaichi-shi, Mie 5E063 CB04 CC05

Claims (1)

[Claims] 1. A crimp terminal attached to an anvil for caulking,
A slide cutter for a terminal crimping machine that cuts a crimp terminal carrier in conjunction with a crimping operation of a crimper that crimps a crimp terminal between the anvil and the crimp terminal. hand,
A slide cutter for a terminal crimping machine, wherein a stopper for positioning the coated electric wire is integrally provided.