JPS6349355B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pressure welding device for a connector, which is comprised of a connector body and a protector and automatically press-fits the wire by press-fitting the wire between the two.

Conventionally, various devices have been proposed for efficiently press-welding a plurality of wires to this type of connector. For example, there is a wire connecting device disclosed in Japanese Utility Model Publication No. 56-54547. This electric wire connecting device is equipped with a wiring section body and a wiring cassette that is separable from the wiring section body, thereby improving work efficiency by performing wiring work and pressure welding connection work separately.
Wiring work using a wiring cassette requires manually pushing multiple wires one by one into the wiring groove using an appropriate tool.Next, after the above wiring is completed, the wiring cassette is attached to the main body of the wiring section, and then the wires are connected. The pressure welding process requires the input of a pair of levers provided on the body of the part, which is troublesome, and there is still a desire to improve efficiency and reduce the amount of labor required by the operator.

The present invention was developed in view of the above-mentioned circumstances, and eliminates the drawbacks of conventional devices, automatically connects and connects a large number of wires with one device, and connects both ends of the wires simultaneously if necessary. It is an object of the present invention to provide a pressure welding device for a connector that can be pressure welded with a connector.

The present invention relates to a multi-polar connector consisting of a connector body and a protector, in which a wire is connected to the pressure welding groove of each pin of the connector body using a guide holding piece of the protector, and the present invention includes the following guide and a connector body holder. and a protector holder, and a pair of cutting blades.

The guide guides each wire of a wire group consisting of a large number of wires to be press-connected to the connector in a horizontal position so as to match the pitch of the pins of the connector. By sequentially passing each wire coming from the reel through each groove of the guide using a board etc. equipped with a be done.

The connector main body holder and the protector holder are disposed on both sides of the wires arranged as described above, and are adapted to press the wires by coming close to each other.

First, the connector body holder is located in a position where the connector body is pressed into contact with the connector body and above the wire group. This connector body holder forms the bottom of a space to hold the connector body, and includes a support plate that receives the connector body from below when the connector body is inserted from the side into the space, and a support plate that holds the connector body after insertion. A clamp body is provided, and the support plate is set to move laterally during pressure contact. Of course, the connector body holder is designed to hold the connector body in such a way that when the connector body holder and the protector holder (described later) approach the pressure contact position, the connector body and protector are pressed together in a normal state. It is designed to be positioned and held in a pressure contact position. The same applies to the protector holder described below.

The protector holder is located below the wire group, and is set to receive the protector at a side position of the wire group when the wire group is not pressed, and to move to the press position when the wire group is pressed. Like the connector main body holder, this protector holder originally needs a space to hold the protector and a mechanism for holding it, but since it is located below the wire group, it is difficult to hold the protector in the correct position. It is sufficient that there is at least a space for holding the protector in which the protector is positioned directly below the holding position of the connector main body.

Note that the above-mentioned connector main body holder and protector holder may be approached relative to each other for pressure contact, and only one of them may be moved.

Next, a pair of upper and lower cutting blades are arranged in close contact with the connector body and protector, respectively.
It has a shearing surface that operates with the connector body holder and the protector holder and cooperates to sever the group of wires protruding from the connector at the end of the connector at the same time or immediately after crimping.

To explain the pressure welding procedure for the present invention configured as described above, first, each wire is pulled out from a reel and passed through each groove of the guide in order, so that each wire is arranged so as to pass through the pressure welding position at the pitch of the pins of the connector. do. Next, the connector body is inserted onto the support plate in the pressure contact position of the connector body holder and held by the clamp body, and then the support plate is moved to the side non-pressure contact position, and then the connector body is moved to the side non-pressure position. Insert the protector into the protector holder and hold it. In this state, remove the connector body holder.
When the protector holder is lowered and approached to the pressure contact position, each guide holding piece of the protector secures each wire in the proper pressure contact groove position of the pin of the connector body, and the core wire of the wire is pressure contacted in the pressure contact groove of the pin. be given At the same time, the pair of cutting blades cuts the wire group at the end of the connector, and the pressure welding operation ends. The above-mentioned series of operations are performed by the driving force of an air cylinder or the like according to a programmed order.

As described above, according to the present invention, the wire arrangement is simple and the pressure welding operation is automatically performed continuously, so that the work efficiency is significantly improved.

Next, embodiments of the present invention shown in the drawings will be described. FIG. 1 shows a connector body 1 and a protector 2, both of which are molded from an insulating material such as plastic. A pin 11 made of a conductive material that conducts electricity to each wire is embedded in the connector body 1.
A pin 11 is provided at one end with a hole 14 for receiving another pin and at the other end with a blade-shaped pressure contact groove 12 for contacting the wire. On the other hand, guide holding pieces 21 are arranged on the protector 2 for correctly press-fitting the wire into the pressure contact groove 12 of the pin. The connector main body 1 and the protector 2 are respectively provided with latching pieces 13 and 22 that are latched to each other at the rear portions of the tapered sliding contact so as not to separate after being pressed together.

Next, FIG. 2 is a front view of the apparatus of this embodiment. A wire group 3 is guided to the right through a groove 41 of the guide 4. A connector body holder A is provided above the wire group, and a protector holder B is provided below. In this embodiment, two connectors are press-connected, namely connectors 1 and 2 at the rear end of the first wire group, and connectors 1' and 1' at the front end of the next wire group.
2' can be pressed together at the same time. Of course, it is also possible to press only one side.

As shown in FIG. 3, the connector body holder A has a space for holding the connector bodies 1 and 1'.
Guide molds 51, 51' designed to correspond to the shape of the connector body, and their shoulders 531, 53 from below.
Support plate 53 that receives connector bodies 1, 1' at 1'
and the upper cutting blade 6, which is in close contact with both the connector bodies 1, 1', rotates around shafts 52, 52' on the sides of the connector bodies to cut the connector bodies 1, 1'. A clamp body 5 that also serves to hold the
5'. The above guide mold 51, 5
Although 1' is not shown, there is a stopper such as a step inside the connector bodies 1, 1' so that the connector bodies 1, 1' are placed in the correct position when inserted into the space (in the positive Y direction in the figure). The clamp bodies 5, 5' are in an open state when the connector bodies 1, 1' are inserted, and after insertion, they rotate around the shafts 52, 52' and are closed to be in a clamped state (FIG. 4). The support plate 53 has a chevron-like protrusion 532 in the center, and the upper cutting blade 6
It has a shape that matches the inverted V shape in the center. After the clamp bodies 5, 5' are clamped, the support plate 53 is configured to reciprocate along with the bar 9, which will be described later, to the side of the wire (Y direction in FIG. 3) as shown in FIG. 4. The support plate 53 has a shoulder portion 53
1,531' not only supports the connector body 1, 1' when inserted, but also serves to remove the adhesion of the wire cut by the upper cutting blade 6 by the return movement of the protrusion 532 in the negative direction of Y. There is.

As shown in FIG. 3, the protector holder B includes protector storage blocks 71, 71' that are movable in the guide grooves 72, 72' from the wire group side position to the pressure contact position (Y positive direction). It is provided on the holder substrate 7. It is determined as appropriate according to the shape and size of each protector as well as the blocks and guide grooves mentioned above.

The lower cutting blade 8 is located directly below the upper cutting blade 6, and as shown in FIG.
Together with 1', side blade surfaces 81, 81' are formed to serve as shearing surfaces for wire cutting. Also, the lower cutting blade 8
A bar 9 is engaged with the bar 9 when not in pressure contact with the bar 9 .
moves to the side of the wire, that is, in the positive Y direction, together with the support plate 53 mentioned above during pressure welding (Fig. 4), and returns to its original position when the pressure welding is completed, and the V of the lower cutting blade 9
The cut wire pieces are removed so that they do not remain in the groove. Note that the lower cutting blade 8 is supported by a spring 85 below so as not to receive an excessive load when cutting the wire.

In addition, in order to prevent overloading of both cutting blades and adhesion/remaining of cut wire pieces,
For example, one solution is to attach an elastic body 62 such as rubber to the upper cutting blade 6 as shown in FIG. In this case, the protrusion 532 of the support plate 53 is connected to the elastic body 62.
Care must be taken to provide a gap that matches the shape of the support plate when it is restored and that does not cause friction when the support plate moves in the Y direction.

Next, the pressure welding procedure of this embodiment will be briefly described. First, as shown in FIG. 3, the wire group 3 is passed through the groove 41 of the guide 4 and arranged. Next, the connector bodies 1 and 1' are inserted into the connector body holder B from the side (in the Y direction). At this time, the clamp body 5,
5' is in an open state. Then, the clamp body 5,
5' clamps the connector bodies 1, 1'.

Along with inserting the connector body, protector 2,
2' to the block 71 in the lateral position of the wire group 3,
71' space.

Next, the blocks 71, 71' move in the positive Y direction toward the pressure contact position. At this time, as shown in FIG. 4, the support plate 53 and the bar 9 are simultaneously moved in the same direction to complete preparations for pressure welding.

When the connector main body holder A is lowered, each wire 3 of the wire group is press-fitted into the pressure contact groove 12 of the pin 11 of the connector main body and firmly pressed. At the same time, the upper and lower cutting blades 6, 8 having shearing surfaces on the side surfaces of the connector cut the wire group 3 at the side end surfaces of the connector. The connector that has been press-connected in this way is removed.

After that, in preparation for the next pressure welding, protector holder B
The blocks 71, 71' again move in the return direction (Y negative direction) toward the side position of the wire group 3. At this time, the support plate 53 and the bar 9 similarly move in the return direction and come into sliding contact with the blade surfaces of the upper and lower cutting blades 6 and 8, respectively, so that the cut wire pieces adhere to the cutting blades.
Even if there is some residue, it will be removed completely.

As shown in the above embodiments, the wires are arranged and pressure welded through a series of operations, so the efficiency of the pressure welding work is much improved compared to conventional methods, and the equipment required is simple.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional perspective view of a connector to be welded according to the present invention before pressure welding, FIG. 2 is a front view of the device according to the present invention, and FIGS. 3 and 4 are perspective views of only the pressure welding part. The figures show the connector body and the protector when they are inserted, Figure 4 shows the state after insertion and before pressure welding, and Figure 5 shows the state after insertion and before pressure welding.
The figure and FIG. 6 respectively show cross sections of the upper and lower cutting blades and modifications thereof. 1, 1'...Connector body, 11...Connector pin, 12...Connector pin pressure contact groove, 2,
2'...Protector, 3...Wire (group), 4...
Guide, 5, 5'...Clamp body, 53...Support plate, 532...Protrusion of support plate, 6...Upper cutting blade,
62...Elastic body, 8...Lower cutting blade, 9...Bar,
A... Connector body holder, B... Protector holder.

Claims (1)

[Scope of Claims] 1. A multi-pole connector consisting of a connector body and a protector is press-connected by using a guide holding piece of the protector to connect wires to the press-contact grooves of each pin of the connector body, wherein the wire group is held in a horizontal position in the connector. a connector body holder and a protector holder disposed respectively above and below the wire group arranged under the pitch; and the connector body holder It comprises a connector body held by a protector holder, and a pair of upper and lower cutting blades held closely to the protector.The connector body holder is inserted from below with the connector body inserted from the side. It is equipped with a support plate that holds the connector body, and a clamp body that clamps the connector body after it is inserted.The support plate is set to move laterally during pressure welding, and the protector holder moves to the side of the wire group when not pressure welded. The connector main body holder is set to move to the pressure welding position at the time of pressure welding.
A pressure welding device for a connector, wherein the pair of cutting blades are configured to cooperate to cut the wire after pressure welding at an end of the connector. 2. The connector according to claim 1, wherein the support plate has a shape that matches the blade surface of the upper cutting blade and has a protrusion that can slide on the blade surface. pressure welding equipment. 3. The lower cutting blade is provided with a bar that has a shape that matches the blade surface of the lower cutting blade and that moves laterally while sliding on the blade surface during pressure contact. A pressure welding device for a connector according to claim 1. 4. At least one of the pair of cutting blades has a V-shaped cross section with a shearing surface on its side surface, and the V-shaped groove is provided with an elastic body. The pressure welding device for a connector according to item 2 or 3.