JPS6136356B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for connecting a connector and a wire, and more particularly to a wire batch pressure welding device that can connect a large number of wires at once.

Connectors for connecting electronic components or wiring patterns mounted on the printed board to external cables are provided on printed boards constituting various electronic devices. This printed board side connector has a number of male contacts arranged in a line that corresponds to the number of wires to be connected, whereas the external cable connector has female contacts corresponding to each male contact on the printed board side. Each female contact is connected to a respective wire end of the external cable inside the connector. This external cable side connector consists of a connector body and a cover having a large number of female contacts, and the exposed end of the coated wire of the external cable is joined to the tip of each female contact (on the opposite side of the connecting end with the male contact). The cover is joined from above to hold the coated wire between the connector body and the cover. Stripping the coated wire ends of such external cables or each
The work of joining a single wire to a contact is extremely troublesome and requires a lot of effort to manufacture the connector.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a pressure welding device for connecting wires and connectors, which can connect a large number of separate coated wires to a connector at once without stripping the coated wires. purpose. For this reason, the wire bulk press-welding device for connectors according to the present invention removes the wire sheathing, and includes a connector body having a large number of contacts with cutout grooves formed at the tips for press-welding the wires, and a connector body that is coupled onto the connector body. A wire batch pressure welding device for a connector for connecting the covered wire to a connector consisting of a cover for holding the covered wire on the connector main body, comprising fixed comb teeth and movable comb teeth for holding the wire, The connector body holding portion is formed between both comb teeth, and a pressure welding head that can be moved upward and downward is removably provided on the connector body holding portion, and a wire cutting means is provided by the side surface of the pressure contact head and the movable comb teeth side surface. The movable comb teeth can approach and leave the connector body holding portion, and the height position of the wire holding portion of the comb teeth that holds the wire continuous to the external cable moves the connector body to the connector body holding portion. The height of the contact tips of the connector body and the height of the top surface of the connector body when mounted on the connector body are located at an intermediate position.

Embodiments of the present invention will be described below based on the drawings. FIG. 1 is an external view of a close-en type connector in which a connector is provided at the end of the cable, and FIG. 2 is a sectional view showing a joint between the connectors. The cable-side connector is a female contact, and each coated wire 20 constituting the cable 21 is held between a connector body 17 having a large number of jack holes 15 and a cover 18. A female contact 16 (FIG. 2) corresponds to each jack hole 15 of the connector body 17.
will be provided. A notch groove 16a is formed at the tip of this female contact 16 as shown in FIG.
The coated wire 20 bites into the cutout groove 16a, and the outer coating is removed so that the inner wire 20a and the female contact 16 come into pressure contact. A protective wall 19 is provided on the cover 18 to prevent the end face of the wire 20 from being exposed.
(Fig. 2) is formed to protrude. Such a cable side connector is connected to a printed board side connector 13 on a printed board 12 (FIG. 2), and each male contact 14 of the printed board side connector 13 is connected to a corresponding female contact 16 of the cable side connector. Ru.

A fourth wire batch pressure welding device for connecting the coated wire 20 to the cable side connector as described above is installed.
As shown in the figure. The first and second comb teeth bases are arranged to face each other so that the comb teeth 6a of the first comb tooth base 6 and the comb teeth 7a of the second comb tooth base 7 are aligned. A connector body holding portion 8 for mounting and holding a connector body 17 (FIGS. 1 and 2) is formed between both comb teeth 6a and 7a. This connector main body holding portion 8 may be integrated with the second comb tooth base 7 (see FIG. 5). A lever 9 is rotatably attached to the end of the device as shown by arrow A. A cam 10 is attached to the end of the lever 9 on the rotating shaft side.
will be provided. The cam 10 engages with the first comb tooth base 6 through the hole 11 and moves the first comb tooth base 6 toward and away from the connector main body holding portion 8 . A pressure contact head 4 is disposed above the connector main body holding portion 8 in a detachable manner and movable in the vertical direction. The wire disposed between the comb teeth 6a and 7a is cut by the side surface of the pressure contact head 4 and the side surface of the comb teeth 16a of the first comb tooth stand 6. One end of the pressure welding head 4 is attached to two supports 2
It is pivotably attached to one end of the support column 2 and can be rotated as shown by arrow B, and the other end has a structure that can be attached to and detached from the other support column 2. Each post 2 is provided with a spring 3 that presses the pressure contact head 4 upward.

Next, with reference to FIG. 5, the wire connection process using the connector wire batch pressure welding device will be explained in order. First, as shown in Figure A, the lever 9 is operated so that the first comb tooth base 6 is separated from the connector main body holding part 8, and the connector main body 17 is mounted with its contacts 16 facing upward. At this time, the pressure welding head 4 is kept in a position away from above the connector main body holding portion 8 (as shown in FIG. 4). Next, lever 9 as shown in figure b.
When the cam 10 is tilted in the opposite direction, the cam 10 presses the first comb tooth base 6 and advances it toward the connector main body holding portion 8 side. 1st
The comb teeth 6a at the tip of the comb tooth base 6 ascend along an inclined surface 60 formed on the bottom surface of the second comb tooth base 7 and reach the connector body 17. At this time, the front side surface of the comb teeth 6a is located at a distance l from the end of the top surface of the connector main body 17, and therefore, the connector main body 17 is covered by the comb teeth 6a over a length l along the edge of the top surface. .
This length l corresponds to the width of the protective wall 19 of the cover 18 (see FIG. 2). Next, as shown in figure c, both comb teeth 6
A large number of coated wires 20 of the cable 21 are stretched in parallel between a and 7a. The pressure contact head 4 is delivered above the connector body 17. A hole 31 is formed in the pressure contact head 4 in correspondence with each contact 16 of the connector body 17. Next, as shown in FIG.
The covered wires 20 are cut by the side surfaces of the comb teeth 6a and the covered wires 20 are pressed against the contacts 16 arranged in a staggered manner, and the contacts 16 and the internal wires 20a are electrically connected as shown in FIG. Connect to. Next, as shown in figure e, lever 9
The comb teeth 6a are separated from the connector 17 by this operation. At this time, the end face of the covered wire 20 is located at a length l from the end of the connector body 17. Then f
A cover 18 is placed on the connector main body 17 as shown in the figure. Next, as shown in Fig. g, the pressure contact head 4 is placed above the cover 18 and pushed down as shown by the arrow C to connect the cover 18 and the connector body 17. In this way, the cover 18 and the connector body 17
After completing the connection by holding the covered wire 20 between them, the pressure welding head 4 is released again and the completed product is taken out. In addition, c
When the coated wire 20 in the figure is stretched, the comb teeth 7a
Preferably, the height of the wire support portion is intermediate between the height of the wire contact portion at the top of the contact 16 and the height of the top surface of the connector body 17. With this configuration, the amount of slack in the covered wire 20 during the tensioning and cutting process of the covered wire 20 is reduced, and the tension applied to the covered wire 20 after the pressure bonding is also small, so that the possibility of wire breakage is reduced.

By using the above-mentioned connector wire batch pressure welding device, it is possible to connect a large number of wires at the same time and complete a connector without stripping the coated wires. In particular, in the case of a closed-end connector like the one in the above embodiment, cutting and pressure welding can be performed simultaneously so that the cut end of the wire is located on the inner surface of the protective wall of the cover, eliminating the need for positioning work after cutting the wire. This makes connector assembly work more efficient.

Note that the present invention is applicable not only to closed-end type connectors but also to through-end type connectors in which the connector is provided in the middle of the cable.
Figure 7 shows an external view of the through-end type connector. The cover 18' is not provided with a protective wall. First, as shown in Figure A, the comb teeth 6a are placed at a position away from the connector body holding portion 8, and the connector body is set. Next, as shown in figure b, the coated wire 20 is connected to both comb teeth 6.
Stretch it between a and 7a. At this time, both comb teeth 6a, 7
The dimensions of each part of the wire holding part a are determined so that the height is intermediate between the height of the top wire contact part of the contact 16 of the connector body 17 and the height of the top surface of the connector body 17. Next, the pressure welding head 4 is placed above the connector main body 17, and the covered wires 20 are pressed onto the connector main body 17 by pressing down as shown in Fig. c, and each covered wire 20 is electrically connected to the corresponding contact 16 as shown in Fig. 3. Connect to the target. At this time, the coated wire 20 is pushed down from an upwardly convex state as shown in Figure b to a downwardly convex state in a substantially symmetrical manner, and since the tension applied to the wire is small, there is little possibility that the wire 20 will break. Next, the cover 18' is placed on the connector main body 17 as shown in Fig. d, and then the cover 18' is pressed onto the connector main body 17 by the pressure contact head 4 as shown in Fig. e, thereby completing the assembly of the connector.

[Brief explanation of the drawing]

Figure 1 is an external view of a closed-end connector.
Fig. 2 is a sectional view of the connector, Fig. 3 is a detailed view of the tip of the contact, Fig. 4 is an external view of the wire batch pressure welding device for connectors according to the present invention, and Figs. 5 a to g are usage states of the present invention. 6A to 6E are sectional views sequentially showing different usage states of the device of the present invention, and FIG. 7 is an external view of the through-end type connector. 4... Pressure welding head, 6... First comb tooth stand, 7...
Second comb teeth base, 6a, 7a...comb teeth, 8...connector body holding portion, 16...contact, 17...connector body, 18...cover, 20...covered wire, 21...cable.

Claims (1)

[Claims] 1. A connector body having a large number of contacts with cutout grooves formed at the tip for removing the wire sheath and press-fitting the internal wire, and a connector body for bonding onto the connector body to hold the sheathed wire on the connector body. A connector wire batch pressure welding device for connecting the covered wire to a connector consisting of a cover, comprising fixed comb teeth and movable comb teeth for holding the wire, and forming the connector body holding portion between the two comb teeth. A vertically movable press-contact head is removably provided above the connector body holding portion, the side surface of the press-contact head and the side surface of the movable comb teeth constitute a wire cutting means, and the movable comb teeth are attached to the connector body holding portion. The height position of the wire holding part of the comb teeth that holds the wire continuous to the external cable is the contact tip of the connector main body when the connector main body is mounted on the connector main body holding part. A wire batch pressure welding device for a connector configured to be at an intermediate position between the height of the connector body and the height of the top surface of the connector body.