JP3079463B2 - Method of manufacturing electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing an electrical connector in which a large number of terminals are mounted at an intermediate portion of an insulating housing, and a pair of mounting brackets are mounted at both longitudinal ends.

[0002]

2. Description of the Related Art Conventionally, in an electrical connector of the type mounted on a printed circuit board, a large number of terminals are mounted at a predetermined pitch at an intermediate portion of an insulating housing, and mounting brackets are provided at both ends of the insulating housing. The mounting bracket is inserted and locked in a locking hole formed in the printed circuit board, so that the electrical connector before the terminal is soldered can be temporarily fixed to the printed circuit board. Japanese Unexamined Utility Model Publication No. 3-104958 discloses a grounding metal fitting for an electric connector, Japanese Unexamined Utility Model Publication No. 4-55775 discloses a lock pin for an electric connector, and Japanese Unexamined Utility Model Publication No. 4-55775.
No. 2380, an electrical connector mounting bracket disclosed in Japanese Utility Model Application Laid-Open No. 5-6744, and an earth lock pin of an electrical connector disclosed in Japanese Utility Model Application Laid-Open No. 5-6744.
The latch of the electrical connector disclosed in Japanese Patent Application Publication No. H10-15064 can be cited as an example of the mounting bracket.

[0003]

In the conventional electrical connector as described above, the mounting brackets installed at both ends of the insulating housing have the same mounting structure at both ends of the insulating housing. Therefore, in a production line in which the number of poles of the terminal is variously changed, the position of the mounting tool of the mounting bracket is changed according to the change in the number of poles, or the moving stroke of the transfer means for transferring the insulating housing. In such a case, there is a problem that a setup process such as changing the size of the electrical connector is required, and the manufacturing efficiency is low, and the quality of the electrical connector may change.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is an electric connector provided with mounting brackets at both ends of an insulating housing. The electric connector has a structure which can be manufactured efficiently regardless of the number of poles of the terminal. An object of the present invention is to provide a method for manufacturing an electrical connector.

[0005]

SUMMARY OF THE INVENTION The present invention, which has been made with the above object, is to mount one of a pair of fittings provided at both ends of an insulating housing to one end of the insulating housing from one side. And the other is mounted and attached to the other end of the insulating housing from the other side.

That is, an electric connector to which the present invention is applied is an electric connector in which a large number of terminals are mounted on an intermediate portion of an insulating housing, and a pair of mounting brackets are mounted on both ends in a longitudinal direction. The electrical connector in which the mounting bracket is mounted at a position equidistant from the center in the longitudinal direction of the insulating housing and in a direction orthogonal to the longitudinal direction and from directions opposite to each other.

[0007] An electrical connector comprising a plurality of terminals mounted on an intermediate portion of an insulating housing, and a pair of mounting brackets mounted on both ends in a longitudinal direction. The pair of mounting brackets includes a mounting piece and a mounting member. Each of the mounting pieces is formed at a position equidistant from the longitudinal center of the insulating housing and in a direction perpendicular to the longitudinal direction and opposite to each other. The electric connector is press-fitted and locked in the mounting groove.

The method for manufacturing an electrical connector according to the present invention is a method for manufacturing an electrical connector as described above, wherein a press-fitting punch that operates in a direction perpendicular to the longitudinal direction of the insulating housing is provided on one side of the starting end. A first stage and a second stage provided with a chuck substantially equal to the length of the insulating housing having the maximum number of poles so as to be rotatable around the center in the longitudinal direction, and operated in a direction orthogonal to the longitudinal direction of the insulating housing. A third stage provided with a press-fitting punch on one side of the starting end is arranged in series, and a fixed stage is provided for sequentially transferring the insulating housing from the first stage to the second stage and from the second stage to the third stage. A production line is constructed by installing a conveying means operating in a stroke, and in a first stage, one end of the insulating housing is inserted from one side of the insulating housing through a press-fitting punch. Ri with attachment fittings, the insulating housing which is transferred to the second stage through the chuck 1
Rotating by 80 degrees to reverse the front-back relationship of both ends of the insulating housing, and then, in the third stage, attaching the mounting bracket to the other end of the insulating housing from the other side of the insulating housing via a press-fitting punch. A manufacturing method characterized by the following.

[0009]

According to the present invention, there is provided a method of manufacturing an electrical connector which can be manufactured in the same process even if the number of poles of a terminal mounted on an intermediate portion of an insulating housing is changed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 7 show an electric connector according to an embodiment, in which a large number of terminals 2 are mounted at a predetermined pitch and in a plurality of rows at an intermediate portion of an insulating housing 1. A pair of mounting brackets 3 are attached to both ends of the housing 1, and a shield cover 4 is covered so as to cover the insulating housing 1 and the mounting bracket 3. 1 to 3 show a state before the shield cover 4 is covered, and FIGS. 4 to 7 show a state after the shield cover 4 is covered.

As shown in FIGS. 1 to 3, the mounting member 3 is a member formed by molding a metal plate into an L-shaped cross section, and has a rectangular mounting piece 5 and a bifurcated shape orthogonal to the mounting piece 5. Mounting pieces 6. Forked mounting piece 6
An engagement portion 7 is provided outside each side of the. With respect to the mounting bracket 3, mounting grooves 8 are formed at both ends of the insulating housing 1 at positions equidistant from the center in the longitudinal direction. The mounting grooves 8 are formed in a direction orthogonal to the longitudinal direction of the insulating housing 1 and in parallel with the upper surface 1a of the insulating housing 1. Each mounting groove 8 is formed in a direction opposite to each other, and is formed in the opposite direction. The mounting piece 3 of the mounting bracket 3 is received from opposite directions. That is, one side (left side in FIG. 1)
Mounting groove 8 is opened in the front surface 1b of the insulating housing 1,
While the mounting bracket 3 is mounted from the front surface 1b side, the mounting groove 8 on the other side (right side in FIG. 1) is opened in the rear surface 1c of the insulating housing 1 and the mounting metal 3 is mounted from the rear surface 1c. .

Therefore, in the longitudinal direction of the insulating housing 1,
The attachment piece 6 of the attachment fitting 3 attached to one end is provided with a bottom surface 1d along the front surface 1b of the insulating housing 1.
The mounting piece 6 of the mounting bracket 3 attached to the other end portion extends downward beyond the bottom surface 1d along the rear surface 1c of the insulating housing 1.

FIG. 8 is a view of a printed circuit board 9 on which the electrical connector of the embodiment is mounted. The left and right locking holes 10 corresponding to the mounting brackets 3 are equidistant to the left and right with respect to the center line 11. It is formed at a position shifted in the front-back direction. In the figure, 12 is a through hole corresponding to the terminal 2, and 13 and 14 are positioning holes. By fitting cylindrical positioning bosses 15 and 16 protruding from a movable guide plate 17 attached to the bottom surface 1d of the insulating housing 1, the electric connector is mounted at a predetermined position. When mounting the electrical connector, the positioning holes 13,
The positioning bosses 15 and 16 are inserted into the connector 14, and the tail portion 2 a of the terminal 2 is inserted into the through hole 12 while the mounting position of the electrical connector is regulated. Insert. As a result, the engaging portion 7 of the mounting piece 6 is locked to the hole edge of the locking hole 10, so that the electrical connector can be temporarily fixed to the printed circuit board 9.

Next, the manner of manufacturing the electrical connector of the above embodiment will be described with reference to FIGS. FIG. 9 is a diagram showing a state of the manufacturing line when the number of poles of the terminal 2 is the minimum number of poles and the length of the insulating housing 1 in the longitudinal direction is the minimum length. FIG. 3 is a diagram showing a state of the manufacturing line when the number of poles of the terminal 2 is the maximum number of poles and the length of the insulating housing 1 in the longitudinal direction is the maximum length. The lines used are common in that the first stage 21, the second stage 22, and the third stage 23 having the same configuration are installed in series. On the first stage 21, a press-fitting punch 24 for mounting the mounting bracket 3 to the insulating housing 1 is provided on one side of the starting end in a direction orthogonal to the longitudinal direction of the insulating housing 1. The second stage 22 is provided with a chuck 25 having a length substantially equal to the longitudinal length of the insulating housing 1 when the terminal 2 has the maximum number of poles, and is rotatably mounted around a central portion thereof. is there. The third stage 23 is, similarly to the first stage, provided with a press-fitting punch 26 for attaching the mounting bracket 3 to the insulating housing 1 on one side of the starting end in a direction orthogonal to the longitudinal direction of the insulating housing 1. is there.

Further, on the side of the first stage 21, the insulating housing 1 in the first stage 21 is
A feeding claw 27 is provided as a transporting means for transferring to the stage 22, and a transporting means for transferring the insulating housing 1 in the second stage to the third stage 23 is provided beside the second stage 22. A feeding claw 28 is provided. In FIG. 9, 27a is a start position of the feed claw 27, and 27b is a stop position. 28a is a start position of the feed claw 28, and 28b is a stop position. That is, the moving strokes of the feed claws 27 and 28 are set at the same stroke.

In the first stage 21, the mounting bracket 3 is mounted on one end of the insulating housing 1 by a press-fitting punch 24 from one side (for example, the rear surface 1c side) of the insulating housing 1. The mounting piece 5 of the mounting bracket 3 is inserted and fixed in the mounting groove 8. Next, the feed claw 27 at the start position 27a is moved by one stroke to the stop position 27b, and the insulating housing 1 is moved to the chuck 25 of the second stage 2.
Send to The stop position 27b coincides with the end of the chuck 25, and the end of the insulating housing 1 and the chuck 2
5 are aligned. When the insulating housing 1 is fed into the chuck 25, the insulating housing 1
Is gripped, the chuck 25 is rotated 180 degrees around its longitudinal center position. In the case of the short insulating housing 1 shown in FIG. 9, the other end, to which the mounting bracket 3 is not yet mounted, is located at a position advanced from the stop position 27b by this rotation.
In the case of the insulating housing 1 having the maximum number of poles, the other end is located at a position corresponding to the stop position 27b.

Subsequently, the feed claw 28 at the start position 28a is operated by one stroke to the stop position 28b, and the insulating housing 1 is fed into the third stage 23.
In this case, in the short insulating housing 1 shown in FIG.
While there is a long idle movement period before the 8 engages with the insulating housing 1 to give a transfer force, the long insulating housing 1 of FIG. 10 has a short idle movement period. In any case, since the stop position 28a of the feed claw 28 is the same, in the third stage 23, the end of the insulating housing 1 to which the mounting bracket 3 is not yet mounted stops at the same position.

In the third stage 23, similarly to the first stage 21, the press fitting punch 26 is operated to attach the mounting bracket 3 to the other end of the insulating housing 1.
The mounting piece 5 of the mounting bracket 3 is inserted and fixed into the mounting groove 8 from the other side (for example, the front surface 1b) of the insulating housing 1.

With the manufacturing method described above, even if the length of the insulating housing 1 changes according to the change in the number of poles of the terminal 2, the positions of the press-fitting punches 24 and 26 for mounting the mounting bracket 3, and Thus, the manufacture of the electrical connector can be continued in the same process without changing the stroke of the feed claws 27, 28 for transferring the insulating housing 1. Therefore, not only can the efficiency of manufacture be improved, but also the manufacturing conditions do not change even if the number of poles of the terminal 2 changes, so that an electrical connector of constant quality can be manufactured. Also, no special work corresponding to each number of poles of the terminal 2 can be required. Furthermore, the mounting brackets 3 attached to each end of the insulating housing 1 can have the same structure.

[0021]

As described above, according to the present invention, it is possible to provide a method of manufacturing an electrical connector having a structure capable of efficiently manufacturing regardless of the number of poles of a terminal and ensuring a certain quality. is there.

[Brief description of the drawings]

FIG. 1 is an exploded plan view showing a part of a cross section of an electrical connector according to an embodiment of the present invention before a shield cover is covered.

FIG. 2 is an exploded side view showing a part of the electric connector of the embodiment in a state in which the shield cover is not yet covered with a shield cover, and showing a part of the electric connector in cross section.

FIG. 3 is a front view of the electrical connector according to the embodiment, in a state before a shield cover is covered.

FIG. 4 is a front view of the electrical connector of the embodiment.

FIG. 5 is a side view of the electrical connector of the embodiment.

FIG. 6 is a plan view of the electrical connector of the embodiment.

FIG. 7 is a sectional view taken along line AA of FIG.

FIG. 8 is a partial plan view of a printed circuit board on which the electrical connector according to the embodiment of the present invention is mounted.

FIG. 9 is a diagram showing a state of manufacturing the electrical connector according to the embodiment of the present invention, and is an explanatory diagram in the case of a short insulating housing (minimum number of poles).

FIG. 10 is a view showing a state in which the electric connector of the embodiment is manufactured, and is an explanatory view in the case of a long insulating housing (maximum number of poles).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulating housing 1a Upper surface of insulating housing 1b Front surface of insulating housing 1c Rear surface of insulating housing 1d Bottom surface of insulating housing 2 Terminal 2a Tail part 3 Mounting bracket 4 Shield cover 5 Mounting piece 6 Mounting piece 7 Engaging part 8 Mounting groove 9 Printed circuit Substrate 10 Locking hole 11 Center line 12 Through hole 13, 14 Positioning hole 15, 16 Positioning boss 17 Movable guide plate 21 First stage 22 Second stage 23 Third stage 24, 26 Press-fit punch 25 Chuck 27, 28 Feeding claw 27a Start position 27b Stop position 28a Start position 28b Stop position

Continuation of the front page (56) References JP-A-6-13117 (JP, A) JP-A-4-61773 (JP, A) JP-A-5-79879 (JP, U) JP-A-5-11662 (JP) , Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 12/04 H01R 12/22 H01R 43/00

Claims (2)

(57) [Claims] 1. An electrical connector comprising a plurality of terminals mounted on an intermediate portion of an insulating housing, and a pair of mounting brackets mounted on both ends in a longitudinal direction, wherein the pair of mounting brackets are arranged in a longitudinal direction of the insulating housing. At a position equidistant from the center, and in a direction orthogonal to the longitudinal direction,
A method of manufacturing an electrical connector mounted from opposite directions, comprising: a first stage having a press-fitting punch that operates in a direction perpendicular to a longitudinal direction of an insulating housing on one side of a starting end; A second chuck having a chuck substantially equal to the length of the housing and rotatably provided about a center in a longitudinal direction thereof;
A stage and a third stage provided with a press-fitting punch that operates in a direction perpendicular to the longitudinal direction of the insulating housing on one side of the starting end side are arranged in series, and the first stage to the second stage, the second stage to the third stage, In order to sequentially transfer the insulating housing to the stage,
A transfer line that operates at a constant stroke is installed to form a manufacturing line. In a first stage, a mounting bracket is attached to one end of the insulating housing from one side of the insulating housing via a press-fitting punch. The insulating housing transferred to is rotated 180 degrees through the chuck to reverse the front-back relationship of both ends of the insulating housing, and then, in the third stage, the other end of the insulating housing is connected to the other end of the insulating housing. A mounting method wherein a mounting bracket is mounted via a press-fitting punch. 2. An electrical connector comprising a plurality of terminals mounted on an intermediate portion of an insulating housing, and a pair of mounting brackets mounted on both ends in a longitudinal direction, wherein each of the pair of mounting brackets includes a mounting piece, The mounting pieces are formed in an L-shaped cross section with mounting pieces orthogonal to each other, and each mounting piece is at a position equidistant from the center in the longitudinal direction of the insulating housing, and in directions perpendicular to the longitudinal direction, opposite directions to each other. A method for manufacturing an electrical connector, which is press-fitted and locked in a mounting groove formed in a first stage, comprising: a first press-fitting punch that operates in a direction orthogonal to a longitudinal direction of an insulating housing on one side of a starting end; A second chuck having a chuck substantially equal to the length of the insulating housing having the maximum number of poles and being rotatable about its longitudinal center.
A stage and a third stage provided with a press-fitting punch that operates in a direction perpendicular to the longitudinal direction of the insulating housing on one side of the starting end side are arranged in series, and the first stage to the second stage, the second stage to the third stage, In order to sequentially transfer the insulating housing to the stage,
A transfer line that operates at a constant stroke is installed to form a manufacturing line. In a first stage, a mounting bracket is attached to one end of the insulating housing from one side of the insulating housing via a press-fitting punch. The insulating housing transferred to is rotated 180 degrees through the chuck to reverse the front-back relationship of both ends of the insulating housing, and then, in the third stage, the other end of the insulating housing is connected to the other end of the insulating housing. A mounting method wherein a mounting bracket is mounted via a press-fitting punch.