JPS6136355B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for connecting wires to a connector, 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 can be provided on printed boards constituting various electronic devices. This printed board side connector has a number of male contacts arranged in a row corresponding to the number of wires to be connected, whereas the external cable side connector has female contacts corresponding to each male contact on the printed board side. and each female contact connects with each wire end of the external cable within 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. The work of stripping the ends of the coated wires of such external cables or the work of joining each wire to a contact is extremely troublesome and requires a lot of effort in manufacturing 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 pressure welding device for a connector according to the present invention includes a connector body having a large number of contacts having cutout grooves formed at the tips for removing the wire sheathing and press-welding the internal wires, and a connector body having a plurality of contacts connected to 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, and comprising fixed comb teeth and movable comb teeth for holding the wire. The connector body holding portion is formed between the comb teeth, and a vertically movable pressure welding head is removably provided above the connector body holding portion, and the side surface of the pressure welding head and the movable comb tooth side form wire cutting means. The movable comb teeth can approach and move away from the connector body holding portion, and the movable comb teeth are configured to cover a portion of the upper surface of the connector body when approaching the connector body holding portion.

Embodiments of the present invention will be described below based on the drawings. FIG. 1 is an external view of a closed-end 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. Female contacts 16 (second
) is provided. A notch groove 16a is formed at the tip of the female contact 16 as shown in FIG. comes into pressure contact. cover 18
A protective wall 19 (FIG. 2) is formed to protrude so that the end face of the wire 20 is not exposed. Such a cable side connector is connected to the printed board 12 (second
(Fig.) is connected to the printed board side connector 13 on the top.
Each male contact 14 of the printed board side connector 13
and the corresponding female contact 1 of the cable side connector
6 is connected.

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.
is 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 first comb tooth base 6a. One end of the pressure contact head 4 is pivotally connected to one of the two pillars 2 and can rotate as shown by arrow B, and the other end is configured to be attachable to and detachable from the other pillar 2.
Each post 2 is provided with a spring 3 that presses the pressure contact head 4 upward.

Next, with reference to FIG. 5, a wire connection process using the above-mentioned connector wire bundle 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 placed in a position away from above the connector main body holding portion 8 (the fourth position).
(position shown in the figure). Next, when the lever 9 is tilted in the opposite direction as shown in FIG. 1st
The comb teeth 6a at the tip of the comb tooth base 6 rise along the inclined surface 30 formed on the bottom surface of the second comb tooth base 7 and reach the connector main body 17. At this time, the front side surface of the comb teeth 6a is located at a distance from the end of the top surface of the connector main body 17, and therefore, the length of the connector main body 17 is covered by the comb teeth 6a along the edge of the top surface.
This length 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 placed above the connector body 17. A hole 31 is formed in this 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 onto 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 Fig. e, the comb teeth 6a are separated from the connector body 17 by operating the lever 9. At this time, the end face of the covered wire 20 is at a position longer than the end of the connector body 17.
Next, the cover 18 is placed over the connector 17 as shown in Fig. f. 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 together. After the wire connection is completed by sandwiching the covered wire 20 between the cover 18 and the connector body 17 in this manner, the pressure welding head 4 is released again and the completed body is removed. Note that when the covered wire 20 is stretched in step c, the height of the wire support portion of the comb teeth 7a is equal to the height of the wire contact portion at the top of the contact 16 and the connector body 17.
The height should preferably be midway between the height of the top surface of. With this configuration, the amount of slack in the covered wire 20 is reduced during the tensioning and cutting process of the covered wire 20, and the amount of slack in the covered wire 20 is reduced after the pressure welding.
Since the tension applied to the wire is also small, the possibility of the wire breaking 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. Especially in the case of a closed-end connector like the one in the above embodiment, cutting and pressure welding can be done 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. Connector assembly work becomes 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.
A cover 18', an external view of the through-end type connector shown in FIG. 7, is not provided with a protective wall. First a
As shown in the figure, the comb teeth 6a are placed at a position away from the connector body holding portion 8, and the connector body 17 is set. Next, as shown in Figure b, a covered wire 20 is stretched between the comb teeth 6a and 7a. At this time, both comb teeth 6a,
The dimensions of each part of the wire holding part 7a 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, pressure welding head 4
are placed above the connector main body 17 and pressed down as shown in Fig. c to bring the covered wires 20 into pressure contact with the connector main body 17 so that each covered wire 20 is connected to the corresponding contact 16.
electrically connected as shown in Fig. 3. At this time, the coated wire 20 is pushed down from the upwardly convex state as shown in Fig. b to the 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 body 17 as shown in figure d, and then the cover 18' is attached to the connector body 17 using the pressure welding head 4 as shown in figure e.
7 to assemble and complete 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 Fig. 5 a to g are use of the device of the present invention. 6A to 6E are sectional views sequentially showing different states of use 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 plurality 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. 1. A collective wire pressure welding device for a connector, which can be moved toward and away from the connector body holding part, and the movable comb teeth are configured to cover a part of the upper surface of the connector body when approaching the connector body holding part.