JP2502043B2 - Pressure welding die of pressure welding tool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crimping die attached to a crimping tool for crimping a flat cable connector.

[0002]

2. Description of the Related Art A conventional pressure welding die for a pressure welding tool can be mounted only in a specific die direction with respect to a pressure welding portion of the pressure welding tool. Therefore, only a single pressure contact height can be obtained for a pair of pressure contact dies to be mounted. Therefore, when attempting to press-connect a plurality of cable connectors having different press-contact widths using a single press-contact tool, considering the press-contact width of each cable connector, a considerable number of press-contacts having a suitable press-contact height are prepared in advance. It was necessary to prepare a pair of dies or a plurality of spacers for the pressure-bonding dies. However, it is quite troublesome to store a large number of pairs of pressure dies and spacers in association with a corresponding pressure welding height, and as a result, they are often attached to the pressure welding tool by mistake. .

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to enable a plurality of flat cable connectors having different pressure contact widths to be appropriately pressure-contacted with each other by using a relatively small number of pressure-contacting die pairs. An object of the present invention is to provide a pressure welding die which can be attached to a pressure welding tool capable of obtaining a plurality of pressure welding heights.

[0004]

According to the present invention, in order to solve the above-mentioned problems, there are provided a pair of press-contact dies which can be attached to a pair of press-contact parts of a press-contact tool for press-contacting a flat cable connector. The pressure contact dies can be attached to each pressure contact part in any of the front and rear die directions, and a plurality of pressure contact heights can be realized by combining the pair of attached pressure contact dies in the die direction. Has become.

[0005]

According to the press-contact dies of the press-contact tool constructed as described above, there are two ways of attaching the press-contact dies in the front and rear directions, and therefore, each pair of press-contact dies is attached to the press-contact dies. It is possible to realize a maximum of four types of pressure contact heights each time, depending on the shape of the person and itself.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a pressure welding tool equipped with the pressure welding die of the present invention. This pressure welding tool comprises an upper jaw 2 and a lower jaw 3 pivotally connected to each other via a fulcrum 1. Upper jaw 2
Has a grip 4 integrally at one end and is connected to a fixed arm 5 as a pressure contact portion at the other end. A guide rail 6 is fixed to the fixed arm 5. The lower jaw 3 is pivotally attached to the grip arm 7 via a fulcrum 8 at one end, and is joined to a slide arm 9 as a press contact portion at the other end. The slide arm 9 is slidably guided by a guide rail 6 fixed to the fixed arm 5,
Therefore, it can move relative to the fixed arm 5.

The upper jaw 2 and the grip arm 7 are
A link 10 biased counterclockwise by an opening spring (not shown) located inside is connected to each other via fulcrums 11 and 12, and inside the grip arm 7 attached to this link 10. The ratchet 13 meshes with the positioned tooth row (not shown). The ratchet 13 is biased in the clockwise direction by a ratchet spring (not shown) located in the grip arm 7, whereby the meshing with the link 10 is maintained. The engagement between the link 10 and the ratchet 13 acts to prevent the press-contact tool from being released from the press-contact state, and is released only when a sufficient press-contact force is applied via the grips 4 and 7. Has become.

An upper pressure contact die 14 and a lower pressure contact die 15 are attached to the fixed arm 5 and the slide arm 9, for example, by hexagon socket head cap screws 16. Both pressing dies 14 and 15 have a substantially trapezoidal shape, as is clear from FIGS. 2, 3 and 4 (a) as front views, and the upper side thereof is in the die direction (left and right direction in FIG. 1). The mounting groove 17 is provided so as to penetrate therethrough. Crimping die 14,
At the time of mounting 15, the mounting grooves 17 of the pressure contact dies 14 and 15 are fitted into the fixed arm 5 or the slide arm 9, and then the hexagon socket head cap screws 16 that vertically penetrate the arms 5 and 9 are pressed into the pressure contact dies. It is screwed into the female threads of the dies 14 and 15 and tightened.

At the bottom side of each pressure contact die 14, 15, there are two pressure contact surfaces 18, 19, with a step interposed therebetween along the die direction.
20 and 21 are formed adjacent to each other. Pressure contact surfaces 18, 19, 20, 21 of pressure contact dies 14, 15 of each pair
The heights are designed to have different values in consideration of the pressure contact width of the cable connector. In this case, the pressure contact surfaces 18, 20 or 19, 21 on the tip side of the pressure contact dice pairs 14, 15 attached to the fixed arm 5 and the slide arm 9 as pressure contact parts exert an effective pressure contact action.

Now, the pressure contact die pair 14 shown in FIG.
The pressure contact height of the pressure contact surfaces 18 and 20 on the tip side of 15 is
For example, it is 16.5 mm.

Next, as shown in FIG. 3, when the upper press contact die 14 is attached with the die direction reversed, the effective press contact surfaces 19 and 20 have a maximum press contact height of, for example, 17.45 m.
m.

Further, as shown in FIG. 4, when the upper and lower pressure contact dies 14 and 15 are mounted with the die directions reversed, the effective pressure contact surfaces 18 and 21 have, for example, a minimum pressure contact height of 10. It becomes 5 mm.

In this case, for example, 1, 2, 3, 4 are provided on both end faces in the die direction of the pressure contact dies 14, 15 for identification.
If the numbers are marked, the corresponding pressure contact height can be easily confirmed from the combination of those numbers. That is, the combination of 1 and 3 in FIG. 2, the combination of 2 and 3 in FIG. 3, and the combination of 1 and 4 in FIG. 4 occur.

Also, on the upper side of the upper pressure welding die 14,
Shims 22 are attached by bolts 23. The shim 22 can be arranged at the bottom of the mounting groove 17 as required, and thereby the press contact height of the press contact die pair 14, 15 can be finely adjusted.

It is convenient if a hexagonal wrench 24 for tightening and loosening the hexagon socket head cap screw 16 can be attached and held in the pressure welding tool as shown in FIG.

[0016]

According to the present invention, since a maximum of four pressure contact heights can be realized by a pair of pressure contact dies, a plurality of cable connectors having different pressure contact widths can be pressure contacted using a single pressure tool. The number of pressure contact die pairs to be prepared in consideration of the pressure contact width of each cable connector is
Compared to the past, it is extremely small, and in the minimum case, only one is sufficient. Therefore, it is no longer necessary to prepare a large number of pressure contacting die pairs having a suitable pressure contacting height as in the past, or to prepare a plurality of spacers for the pressure contacting dies. Becomes extremely easy.

[Brief description of drawings]

FIG. 1 is a plan view of a pressure welding tool to which a pressure welding die of the present invention is attached.

FIG. 2 is a partial front view and a plan view in the vicinity of a pressure welding die of a pressure welding tool.

FIG. 3 is a partial front view and a plan view in the vicinity of a pressure welding die of a pressure welding tool.

FIG. 4 is a partial front view and a plan view in the vicinity of a pressure welding die of a pressure welding tool.

[Explanation of symbols]

 1 fulcrum 2 upper jaw 3 lower jaw 4 grip 5 fixed arm 6 guide rail 7 grip arm 8 fulcrum 9 slide arm 10 link 11,12 fulcrum 13 ratchet 14,15 pressure welding die 16 hexagon socket head bolt 17 mounting groove 18,19,20 , 21 Pressure contact surface 22 Shim 23 Bolt 24 Hexagon wrench

Claims (1)

(57) [Claims] 1. A pair of press-contact dies which can be attached to a pair of press-contact parts of a press-contact tool for press-contacting a flat cable connector, wherein each press-contact die is attached to each press-contact part in any of the front and rear die directions thereof. A pressure welding die for a pressure welding tool, wherein a plurality of pressure welding heights are realized by combining a pair of attached pressure welding dies in a die direction.