JPH0340472B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] A connector in which intermediate portions of a plurality of both-end connecting terminals are implanted in an insulator having a peripheral wall for protecting the connecting portion, the connecting terminal having one end connected to a connecting member. With the other end inserted into the planting jig, the connection between one end of the connection terminal and the connection member is sheared with a cutter, and then the middle part of the connection terminal is press-fitted into the insulator.
By removing the jig, the unevenness on the cut-off end face of the both-end connecting terminal separated from the connecting member is eliminated, and connection with the mating terminal is made possible without damaging the mating terminal.

[Industrial application field]

The present invention relates to a method for manufacturing a connector, and more particularly to a method for manufacturing a connector in which intermediate portions of a plurality of connecting terminals at both ends are embedded in an insulator having a peripheral wall for protecting the connecting portion.

[Conventional technology]

FIG. 2 is a perspective view of a conventional connector in which intermediate portions of a plurality of connecting terminals at both ends are implanted in an insulator and a peripheral wall for protecting the terminal connection portion is provided on the insulator, cut at the intermediate portion in the length direction. .

In FIG. 2, the connector 1 consists of an insulator 2 made of molded plastic, and a plurality of connecting terminals 3 at both ends, the intermediate portions of which are press-fitted into the insulator 2. The both-end connection terminal 3 includes an intermediate portion 5 that is press-fitted into a through hole 4 previously provided in the insulator 2, a connecting portion (male contact portion) 6 that protrudes above the through hole 4, and a connection portion that protrudes below the through hole 4. part (male contact part) 7.

The insulator 2 is connected to the press-fit portion 8 of the connection terminal 3 and the press-fit portion 8
It consists of a circumferential wall 9 that protrudes further upwards and a circumferential wall 10 that protrudes downward from the press-fitting part 8, and the press-fitting part 8 is provided with a plurality of through holes 4, for example, in two rows.

In such a mass production method of the connector 1, a large number of connecting terminals 3 are connected to a connecting member, and then the connecting member is cut into a length that includes the required number of connecting terminals 3, as shown in FIG. After the intermediate portion 5 of the connecting terminal 3 connected to the cutting connecting member 11 is press-fitted into the through hole 4 of the insulator 2, the connecting portion 12 between the cutting connecting member 11 and the connecting terminal 3 is cut. However, in order to facilitate cutting, the connecting portion 12 is narrowed to be smaller than the width and thickness of the connecting portion 6.

However, when cutting the connecting portion 12 in the conventional method, the peripheral wall 9 or 10 gets in the way, making it impossible to cut using a cutter. The cutting connection member 11 was swung left and right around the connection part 12 of the holder, and the connection part 12 was broken off.

[Problem that the invention seeks to solve]

The cutting of the connecting portion 12 by the conventional method is as follows:
As the cut surface becomes uneven, a series of connection terminals 3
Since they are not cut at the same time, there is a disadvantage that the last one cut is easily bent, and these unevenness and bending can damage the connecting part (female contact part) of the mating terminal and make the electrical connection uncertain. There was a problem with becoming.

[Means for solving problems]

The method of the present invention, which aims to eliminate the above problems,
According to FIG. 1, an intermediate portion 5 of a plurality of double-end connecting terminals 3 having connecting portions 6, 7 connected to other terminals formed at both ends in the length direction is connected to a protective peripheral wall 9 of the connecting portions 6, 7. , 10, the tip of one of the connecting portions 6 of a large number of connecting terminals 3 is connected to a connecting member, and a length including a predetermined number of connecting terminals 3 is formed. Connecting member 1
1, and insert the other connecting portion 7 of the connecting terminal 3 connected to the connecting member 11 into the bottomed hole 14 of the planting jig 13 opened by the press-fitting pitch, and insert one connecting portion 6 of the connecting terminal 3 The cutter 1 supports the connecting portion 12 between the connecting terminal 3 and the connecting member 11.
This method of manufacturing a connector is characterized in that after the intermediate portion 5 of the connecting terminal 3 is press-fitted into the insulator 2, the implantation jig 13 is removed.

[Effect]

According to the above means, a planting jig and a cutter are used to cut the connecting portion between the connecting terminal and the connecting member, and a series of connecting terminals are simultaneously sheared, so that the unevenness of the cut surface is less than that of conventional methods, and I was able to eliminate the bend.

〔Example〕

Below, the main manufacturing steps of an embodiment in which the method of the present invention is applied to the manufacturing of the connector 1 are shown in the order of steps.
The diagram will be explained.

In Figure 1, in which the same reference numerals are used for parts common to the previous figure, A is a perspective view of a connecting member cut to include a predetermined number of connection terminals, and B is a perspective view of a connecting member connected to two cut connecting members, respectively. A perspective view of the connection terminal inserted into the planting jig, C is a perspective view for explaining the method of cutting the connection between the cutting connection member and the connection terminal, and D is a perspective view of the connection terminal press-fitted into the insulator. It is a diagram.

In FIG. 1A, a predetermined number of connection terminals 3 are connected to a cutting connection member 11 of an appropriate length,
The connecting portion 12, which is the tip of one (upper) connecting portion 6 of the plurality of connecting terminals 3, is connected to a connecting member, and then the connecting member is cut. The connecting terminal 3 consists of a press-fitting part (intermediate part) 5 and connecting parts 6 and 7 that are connected to a mating terminal (not shown).
A bulge (not shown) is formed to press fit into the insulator.

In FIG. 1B, the connecting portions 7 of the respective connecting terminals 3 connected to the pair of cutting connecting members 11 are implanted (inserted) into the bottomed holes 14 of the implanting jig 13, and are made of metal. The planting jig 13 is provided with a plurality of bottomed holes 14 in the same arrangement as the arrangement in which the connection terminals 3 are press-fitted into the insulator 2. However, the bottomed hole 14 is dimensioned so that the connection part 7 can be easily inserted, and the tip of the connection part 7 of the connection terminal 3 inserted and cut at the connection part 12 swings approximately 0.2 mm or less. .

In FIG. 1C, the tool for cutting the connecting portion 12 is a fixed die block 16 in which two slits 15 into which a series of connection terminals 3 are fitted are formed.
and a cutter 1 that is slidable in the direction of the arrow along the upper surface 17 of the die block 16 that coincides with the connecting portion 12.
It will be at 8. Therefore, the sliding of the cutter 18 shears each connecting portion 12 connected to the pair of cutting connecting members 11, and separates the connecting terminal 3 and the cutting connecting member 11.

In FIG. 1D, the insulator 2 is pressed down from above the connection terminal 3 with the connection part 7 inserted into the implantation jig 13, and the press-fit part 5 of the connection terminal 3 is press-fitted into the through hole 4.

Next, when the implantation jig 13 is removed downward, the second implantation jig 13 is removed.
The connector 1 shown in the figure is completed.

〔Effect of the invention〕

According to the method of the present invention described above, since the connecting portion between the connecting member and the connecting terminal is sheared with a cutter, the cut end is flat, and a series of connecting portions are cut at the same time. Therefore, there is no damage to the mating terminal due to the unevenness of the cutting surface and irregular cutting and bending in the conventional method, and there is an effect that normal electrical connection can be ensured.

[Brief explanation of the drawing]

FIG. 1 is a main process diagram of an embodiment of the method of the present invention.
Fig. 2 is a perspective view of a connector having connection terminals at both ends, and Fig. 3 is a perspective view for explaining a conventional manufacturing method of the connector shown in Fig. 2. In the figure, 1 is a connector, and 2 is an insulator. ,3
is the connection terminal at both ends, 5 is the middle part, 6 and 7 are the connection parts,
9 and 10 are peripheral walls, 11 is a connecting member, 12 is a connecting portion, 13 is a planting jig, 14 is a bottomed hole, and 18 is a cutter.

Claims (1)

[Scope of Claims] 1. An intermediate portion 5 of a plurality of double-end connecting terminals 3 having connecting portions 6, 7 connected to other terminals formed at both ends in the length direction is connected to a protective peripheral wall of the connecting portions 6, 7. When manufacturing a connector formed by press-fitting into an insulator 2 having a plurality of connecting terminals 3, the tip of one connecting portion 6 of a large number of connecting terminals 3 is connected to a connecting member, and a predetermined number of connecting terminals 3 are included. The connecting member is divided into lengths, and the other connecting portion 7 of the connecting terminal 3 connected to the divided connecting member 11 is inserted into the bottomed hole 14 of the planting jig 13 opened by the press-fitting pitch. A connecting portion 12 that supports one connecting portion 6 of the connecting terminal 3 and connects the connecting terminal 3 and the divided connecting member 11.
A method for manufacturing a connector, which comprises: shearing with a cutter 18, press-fitting the intermediate portion 5 of the connecting terminal 3 into the insulator 2, and then removing the planting jig 13.